US20080302381A1 - Hair Holder - Google Patents
Hair Holder Download PDFInfo
- Publication number
- US20080302381A1 US20080302381A1 US12/066,279 US6627906A US2008302381A1 US 20080302381 A1 US20080302381 A1 US 20080302381A1 US 6627906 A US6627906 A US 6627906A US 2008302381 A1 US2008302381 A1 US 2008302381A1
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- United States
- Prior art keywords
- opening
- side sheet
- tube
- hair
- hair holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/12—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
- A45D2/14—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means
- A45D2/18—Flexible curlers
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
- A45D19/012—Devices for colouring or bleaching separated strands of hair, e.g. highlighting
- A45D19/018—Devices for colouring or bleaching separated strands of hair, e.g. highlighting comprising wrapping foils or foldable sheets for enclosing a strand of hair during treatment, e.g. frosting foils
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/12—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
- A45D2/14—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means
- A45D2/22—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means with means for applying liquids therethrough
Definitions
- the present invention relates to a hair holder used to roll a strand of hair into a desired shape.
- Patent Document 1 discloses a hair holder comprising a flat tube formed of a sheet in such a design to allow a strand of hair to be inserted from an opening at one end toward an opening at the other end.
- Examples of the tube of the hair holder described in Patent Document 1 include a tube having substantially no extensibility in the longitudinal direction formed by joining two sheets along their long side edges, one of the sheets having a Taber stiffness of 0.4 mN ⁇ m or less, and the other having a Taber stiffness of more than 0.4 mN ⁇ m.
- Patent Document 1 JP 2003-319815A
- the problem of the hair holder disclosed in Patent Document 1 is that the hair in the tube is liable to bend awkwardly near the inlet (one of the openings) of the tube, for example, when a large amount of hair is inserted into the tube or when damaged hair is rolled up with the tube and permed. Undesirably bent hair will be set as it is and, in extreme cases, may break off at the bend.
- the present invention relates to a hair holder that hardly causes hair to bend undesirably near the inlet of its tube even when a large amount of hair is inserted into the tube or when damaged hair is rolled up with the tube.
- the invention provides a hair holder including a tube having an opening at one end (hereinafter “a first opening”) and an opening at the opposite end (hereinafter “a second opening”) thereof and configured to have a strand of hair inserted from the first opening toward the second opening.
- the tube has a first side that is to be an inner side when rolled up and a second side that is to be an outer side when rolled up.
- the tube is formed of a first side sheet defining the first side and a second side sheet defining the second side.
- the first side sheet and/or the second side sheet has a Taber stiffness of 0.4 mN ⁇ m or more.
- the tube is provided, around the first opening thereof, with a stress relaxing means that relaxes the stress imposed to a hair strand having been inserted through the first opening.
- FIG. 1( a ) is a perspective front view of a hair holder according to a first embodiment of the present invention.
- FIG. 1( b ) is a perspective rear view of the hair holder of the first embodiment.
- FIG. 1( c ) is a cross-section taken along line segment C-C in FIG. 1( b ).
- FIG. 2 is a perspective of the hair holder of the first embodiment in its self-rolled state.
- FIG. 3 is a fragmentary rear view showing the first opening of the tube of the hair holder according to the first embodiment.
- FIG. 4( a ) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment.
- FIG. 4( b ) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment.
- FIG. 4( c ) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment.
- FIG. 5 is a perspective view of the hair holder of the first embodiment having a hair strand inserted therein.
- FIG. 6( a ) is a fragmentary rear view showing the first opening of the tube of a hair holder according to a second embodiment (corresponding to FIG. 3) .
- FIG. 6( b ) is a cross-section taken along line segment X-X in FIG. 6( a ).
- FIG. 7( a ) is a fragmentary perspective view showing the first opening of the tube of a hair holder according to a third embodiment.
- FIG. 7( b ) is a side view of FIG. 7( a ).
- FIG. 8 is a fragmentary rear view showing the first opening of the tube of a hair holder according to a fourth embodiment (corresponding to FIG. 3 ).
- FIG. 9 is a fragmentary rear view showing the first opening of the tube of a hair holder according to a fifth embodiment (corresponding to FIG. 3 ).
- FIG. 10( a ) is a fragmentary rear view showing the first opening of the tube of a hair holder according to a sixth embodiment (corresponding to FIG. 3) .
- FIG. 10( b ) is a fragmentary view of a sheet material forming the second side sheet of the hair holder of the sixth embodiment.
- FIG. 11( a ) is a perspective view of a bent-edged plate member used in a hair holder of a seventh embodiment.
- FIG. 11( b ) is a fragmentary cross-section of the hair holder of the seventh embodiment, showing the first opening of the tube (corresponding to FIG. 6( b )).
- the first embodiment provides a hair holder 1 including a tube 2 configured to have a hair strand inserted therethrough from a first opening 21 at one end to a second opening 22 at the other end.
- the tube 2 has a first side that is to be an inner side when rolled up and a second side that is to be an outer side when rolled up.
- the tube 2 is formed of a first side sheet 23 A defining the first side and a second side sheet 23 B defining the second side.
- the first side sheet 23 A and/or the second side sheet 23 B has a Taber stiffness of 0.4 mN ⁇ m or more.
- the tube 2 is provided, in or on its portion forming the first opening 21 , with a stress relaxing means that relaxes the stress exerted on a hair strand having been inserted through the first opening 21 .
- the hair holder 1 of the first embodiment will be described hereunder in detail. As illustrated in FIGS. 1( a ) to 1 ( c ), the hair holder 1 mainly includes the tube 2 , an extension 4 , and a pair of tightening tabs 3 .
- the tube 2 has a flat shape and is configured to have a hair strand H (see FIGS. 4( a ) to 4 ( c )) inserted therethrough from the first opening 21 to the opposite second opening 22 .
- the tube 2 is formed by joining the first side sheet 23 A and the second side sheet 23 B. Specifically, the tube 2 is formed by joining the first side sheet 23 A and the second side sheet 23 B along their long side edges 24 .
- the first side sheet 23 A defines the first side of the tube that is to be an inner side when the tube is rolled up.
- the second side sheet 23 B defines the second side of the tube that is to be an outer side when the tube is rolled up.
- the tube 2 preferably measures 50 to 350 mm in length, 20 to 100 mm in width. These dimensions can be decided as appropriate to the length of the hair, what part of the hair is to be curled, and the amount of hair of the hair strand to be inserted.
- base sheets 23 In describing the first side sheet 23 A and the second side sheet 23 B in common, these two sheets will be generically called base sheets 23 .
- materials forming the base sheets 23 include nonwoven fabrics (such as polyethylene nonwoven fabric and polyethylene terephthalate nonwoven fabric), woven fabrics, mesh sheets, porous or non-porous resin films (e.g., polyethylene film and polyethylene terephthalate film), paper, polymer sheets, rubber sheets, and composites of these materials.
- the base sheets 23 each preferably have a thickness of 30 to 500 ⁇ m.
- the second side sheet 23 B has a plurality of slits 26 that are long in the lateral direction of the sheet 23 B and are spacedly arranged in the longitudinal direction of the sheet 23 B.
- the slits 26 are provided primarily for the purpose of enhancing the extensibility of the second side sheet 23 B.
- each slit 26 has a circular hole punched out at both ends 26 A.
- the middle part of the slit 26 between the ends 26 A is formed by slitting with a thin blade.
- An engageable member 52 engageable with an engaging member 51 (described infra) is provided on the second side sheet 23 B near the first opening 21 .
- the engageable member 52 also has the slit 26 cut across.
- the second side sheet 23 B, while sectioned by the slits 26 is still a unitary strip-shaped sheet as a whole.
- the engageable member 52 can be of any material as long as it is engageable with the engaging member 51 , for example, nonwovens.
- the engageable member 52 preferably has a certain amount of length, for example, 2 to 15 cm, in the longitudinal direction of the tube 2 because the longitudinal position of the engagement with the engaging member 51 varies depending on the final diameter of the roll of the tube 2 .
- the first side sheet 23 A is formed of polyester nonwoven fabric having a weight of 150 g/m 2 and has no slits 26
- the second side sheet 23 B is formed of polyester nonwoven fabric having a weight of 50 g/m 2 and has ten slits 26 .
- One of, or both of, the first side sheet 23 A and the second side sheet 23 B has/have a Taber stiffness of 0.4 mN ⁇ m or more, preferably 1 mN ⁇ m or more. With that Taber stiffness, the tube 2 having a hair strand H inserted therethrough is rolled up neatly with no aid of a curling rod.
- both the base sheets 23 have a Taber stiffness of 0.4 mN ⁇ m or more.
- the upper limit of the Taber stiffness is 10 mN ⁇ m in view of ease of rolling the tube 2 .
- the Taber stiffness is measured in accordance with the stiffness testing method specified in JIS P8125.
- the second side sheet 23 B has its long side edges reinforced by bonding thereto a reinforcing member B the width of which is almost the same as the width of the side joints (seal) between the base sheets 23 .
- the reinforcing members B adhered to the second side sheet 23 B increase the overall Taber stiffness of the tube 2 .
- the reinforcing member B is provided on only the side edges 24 of the tube 2 so that the ease of widening the first opening 21 of the tube 2 is not affected, nor is affected ease of inserting a hair strand H into the tube 2 .
- the tube 2 is adapted to roll itself up into a prescribed shape and keep the rolled state. Specifically, the tube 2 has been adapted by a prescribed means to have the property of reverting to a previously defined rolled-up state with the second side sheet 23 B out and keeping the rolled up state as illustrated in FIG. 2 .
- the self-rolling tube 2 can be obtained by rolling up a tube, fixing the tube in the rolled up state by a prescribed means, and heating the rolled up tube to a prescribed temperature to make the tube memorize the rolled shape.
- the hair holder 1 has an extension 4 extending from the end of the first side sheet 23 A forming the first opening 21 in the longitudinal direction of the tube 2 (opposite to the direction of inserting a hair strand H) as illustrated in FIGS. 1( a ) to 1 ( c ).
- the first side sheet 23 A and the extension 4 are integral with each other.
- the extension 4 has an engaging member 51 on its side opposite to the second side sheet 23 B. After the tube 2 self-rolls, the engaging member 51 engages with the engageable member 52 to maintain the roll shape of the tube 2 .
- the engaging member 51 is exemplified by a male member of a mechanical fastener.
- the engaging member 51 may be capable of engaging with the second side sheet 23 B depending on the material of the second side sheet 23 B.
- a pair of tightening tabs 3 are provided on the long sides 24 of the tube 2 near the second opening 22 .
- Each tightening tab 3 is a semicircle extending laterally outward from the side 24 .
- the first side sheet 23 A, the second side sheet 23 B, and the reinforcing member B each has extensions corresponding to the tightening tabs 3 .
- the tightening tabs 3 are formed of a laminate of the extensions of the first side sheet 23 A, the second side sheet 23 B, and the reinforcing member B.
- the method of forming the tightening tabs 3 and their shape, size, thickness, position, etc. are decided as appropriate.
- a stress relaxing means for relaxing the stress applied to a hair strand H having been inserted through the first opening 21 is provided in a portion of the tube forming the first opening 21 (hereinafter “a first-opening-forming portion”).
- the stress relaxing means adapted in the first embodiment is a flap 61 provided in the first-opening-forming portion of the second side sheet 23 B. The flap 61 is not joined to the first side sheet 23 A.
- the flap 61 is a part of the first-opening-forming portion of the second side sheet 23 B and is not joined to the first side sheet 23 A nor to the extension 4 .
- the length of the flap 61 along the longitudinal direction of the tube 2 is appropriately decided. It is preferably from 1 to 30 mm, more preferably 5 to 15 mm.
- the flap 61 is configured to bend back from the first side sheet 23 A along a base line 61 A connecting two first-opening-sided ends of the opposite joined sides 24 .
- the shape of the flap 61 is not limited to a rectangle as in the first embodiment shown and may be, for example, a trapezoid, a semiellipse or a semicircle.
- the flap 61 has at least one slit 62 extending in the longitudinal direction of the tube 2 .
- the length, number, interval of the slits 62 are decided appropriately.
- the length of the slit 62 is, for example, such that the slit 62 exceeds the above-identified base line 61 A, specifically from 2 to 40 mm.
- the number of the slits 62 is, for example, 1 to 8.
- the interval of the slits 62 is, for example, 5 to 20 mm.
- a hair holder 1 having a tube 2 with appropriate length and width is chosen according to the amount of hair of a hair strand H or a desired curling style.
- the first opening 21 of the tube 2 is widened to make an elliptic opening, and a hair strand H is introduced into the first opening 21 .
- the tube 2 is rolled up from the second opening 22 with the first side sheet 23 A inside as illustrated in FIGS. 4( a ) and 4 ( b ). While the tube 2 of the first embodiment self-rolls since it has been so adapted as to retain its previously defined rolled state, rolling the tube 2 while pinching the tightening tabs 3 between fingers will ensure the rolling with a desired tightness.
- the engaging member 51 engages with the engageable member 52 as illustrated in FIG. 4( c ).
- the tube 2 is fixed in its rolled state with a prescribed diameter.
- a hair treating agent for permanent waving is applied to the hair strand H from the outside of the tube 2 .
- the hair strand H is released from the tube 2 and subjected to post-treatment such as shampooing to complete permanent waving.
- the first opening 21 of the tube 2 can be widened into a circular shape when a hair strand H is inserted therethrough, which will be more helpful to insert the hair strand H smoothly.
- a hair inserter (not shown) having a hair catching hook may be used to help a user to insert a hair strand H.
- the tip of the hair strand H may stick out of the second opening 22 .
- the hair strand H inserted in the tube 2 and rolled up generates a force to return to its original straight state.
- the part of the hair strand H near the first opening 21 is given a stress to bend.
- the hair holder 1 of the first embodiment has the flap 61 provided at the first-opening-forming end of the tube 2 as a stress relaxing means for relaxing the stress exerted on the hair strand H having been inserted through the first opening 21 .
- the flap 61 is a first-opening-forming portion of the second side sheet 23 B that is not joined to the first side sheet 23 A.
- the flap 61 bends back away from the first side sheet 23 A so that the stress imposed to the part of the hair strand H near the first opening 21 of the tube 2 is relaxed.
- a reaction force will be generated to move the rolled tube 2 in the direction indicated by arrow D in FIG. 5 .
- the stress on the hair strand H near the first opening 21 will be further relaxed.
- the hair strand H is less likely to bend near the first opening 21 of the tube 2 .
- the flap 61 used in the first embodiment has slits 62 cut therein, the flap 61 bends back while spreading in the lateral direction of the tube 2 , which enhances the stress relaxing effect on the hair strand H.
- Second to seventh embodiments of the hair holder according to the present invention will then be illustrated.
- the description will generally be confined to the differences from the first embodiment.
- the description on the first embodiment applies to the second to seventh embodiments unless otherwise specified.
- the hair holders of the second to seventh embodiments can be used in the same manner as that of the first embodiment to produce the same effects as in the first embodiment.
- the hair holder of the second embodiment is designed such that the flap 61 exerts a restoring force toward the first side sheet 23 A (a restoring force in the direction indicated by the arrow in FIG. 6( b ) about the base line 61 A as an axis as illustrated in FIG. 6) .
- the hair holder of the second embodiment is otherwise structurally the same as that of the first embodiment.
- the flap 61 in the second embodiment has the reinforcing member B bonded to its both sides.
- the reinforcing member B causes, by its stiffness, the flap 61 to exert a restoring force to the first side sheet 23 A.
- the reinforcing member B on both sides of the flap 61 is an extension from the reinforcing member B provided on both sides 24 of the first side sheet 23 A.
- configurations by which the flap 61 is made to exert a restoring force to the first side sheet 23 A include making the flap 61 of a shape memory material having the property of reverting to its original shape.
- the hair holder of the second embodiment is structurally the same as that of the first embodiment and is additionally configured so that the flap 61 may exert a restoring force to the first side sheet 23 A.
- the second embodiment offers the advantage that the flap 61 hardly loses its resilience even after repeated use in addition to the effects of the first embodiment.
- a flap 61 having lost its resilience would be liable to cause a hindrance in using the hair holder or inconvenience in handling the hair holder and fail to produce the stress relaxing effect (the effect to relaxing the stress applied to the hair strand).
- the flap 61 that exerts a restoring force to the first side sheet 23 A and hardly loses resilience continues exhibiting the stress relaxing effect without causing a hindrance in using the hair holder or inconvenience in handling the hair holder.
- the restoring force of the flap 61 is preferably set within a range that does not impair the stress relaxing effect.
- the stress relaxing means adopted in the third embodiment of the hair holder is a bulge provided in the first-opening-forming portion of the second side sheet 23 B as illustrated in FIGS. 7( a ) and 7 ( b ).
- the bulge is shaped by bending back the first-opening-forming portion of the second side sheet 23 B away from the first side sheet 23 A.
- Such a bent-back shape is formed by plastic deformation of first-opening-forming portion (inclusive of the edge 25 ) of the second side sheet 23 B.
- the amount of bending back L 1 of the second side sheet 23 B is decided as appropriate and is preferably from 5 to 30 mm.
- the hair strand H near the first opening 21 of the tube 2 is allowed to move to the second side sheet 23 B forming the bulge so that the stress imposed to the hair strand H can be relaxed.
- the same effect as in the first embodiment is achieved.
- the stress relaxing means adopted in the fourth embodiment of the hair holder is a cutout 25 made in the first-opening-forming portion of the second side sheet 23 B as illustrated in FIG. 8 .
- the cutout 25 is concave toward the second opening 22 .
- the shape of the cutout 25 may be, for example, a semiellipse or a semicircle.
- the depth L 2 of the cutout 25 is decided appropriately. It is preferably 5 to 30 mm.
- the hair strand H near the first opening 21 of the tube 2 is allowed to move to the edge of the cutout 25 so that the stress imposed to the hair strand H can be relaxed.
- the same effect as in the first embodiment is achieved.
- a stress relaxing means adopted in the fifth embodiment of the hair holder is a stretch material 63 that is stretchable under a small load provided on the first-opening-forming portion of the second side sheet 23 B as illustrated in FIG. 9 .
- the length of the stretch material (in the longitudinal direction of the tube 2 ) is decided appropriately. It is preferably 10 to 50 mm.
- the phrase “stretchable under a small load” means to be capable of stretching at 5% or more under a load of 5 N. Examples of such a stretch material include polyethylene nonwovens, polypropylene nonwovens, polyester nonwovens, rubber thread wovens, and rubber fiber nonwovens.
- the stretch material 63 includes a portion E unjoined to the first side sheet 23 A and located nearer to the first opening 21 than to the second opening 22 (see FIG. 9 ).
- the tube 2 having the stretch material 63 on the first-opening-forming portion of the second side sheet 23 B is obtained by uniting the stretch material 63 to a material that does not stretch under a small load in the longitudinal direction of the tube 2 or by disposing the stretch material 63 longitudinally next to the second described material with an unbonded overlap.
- the hair strand H near the first opening 21 of the tube 2 pushes the stretch material 63 to cause it to stretch and thereby moves away from the first side sheet 23 A so that the stress imposed to the hair strand H can be relaxed.
- the same effect as in the first embodiment is achieved.
- a stress relaxing means adopted in the sixth embodiment of the hair holder is a folded portion 64 provided in the first-opening-forming portion of the second side sheet 23 B and having a part thereof folded in the lateral direction of the tube 2 as illustrated in FIG. 10( a ).
- the amount of folding in the lateral direction is decided as appropriate to the desired amount of stress relaxation.
- the second side sheet 23 B having the folded portion 64 shown in FIG. 10( a ) is obtained using a sheet material having a pentagonal region 64 ′ at its end that will provide the first opening 21 as illustrated in FIG. 10( b ).
- the pentagonal region 64 ′ is folded along V-shaped folding line 64 A into a rectangle.
- the second side sheet 23 B with the resulting folded portion 64 is then joined to the first side sheet 23 A along both side edges 24 to make the tube 2 .
- the hair strand H near the first opening 21 of the tube 2 pushes the folded portion 64 to unfold it and thereby moves away from the first side sheet 23 A so that the stress imposed to the hair strand H can be relaxed.
- the same effect as in the first embodiment is achieved.
- the folded portion as a stress relaxing means may be replaced with a portion slackened in the lateral direction of the tube 2 provided in the first-opening-forming portion of the second side sheet 23 B.
- a stress relaxing means adopted in the seventh embodiment of the hair holder is a bent-edged plate member 65 provided along the first-opening-forming portion of the second side sheet 23 B as illustrated in FIGS. 11( a ) and 11 ( b ).
- the bent-edged plate member 65 includes a bending portion 65 A sticking from the first opening 21 and bending toward the second side sheet 23 B away from the first side sheet 23 A.
- the bent-edged plate member 65 is nearly triangular in a plan view and has its upper side edge bent outward in a side view.
- the bent-edged plate member 65 is formed of, for example, resin film or metal.
- the bent-edged plate member 65 is bonded to the inner side of the first-opening-forming portion of the second side sheet 23 B with its bending portion 65 A sticking outward from the first opening 21 and bending from the first side sheet 23 A toward the second side sheet 23 B.
- the hair strand H near the first opening 21 of the tube 2 is allowed to move to the bending portion 65 A of the bent-edged plate member 65 so that the stress imposed to the hair strand H can be relaxed.
- the same effect as in the first embodiment is achieved.
- the bent-edged plate member 65 may be either bonded, as described above, or non-bonded to the second side sheet 23 B of the tube 2 .
- the bent-edged plate member 65 that is not bonded is used as disposed at the first opening 21 so that a hair strand H is inserted from the first opening 21 between the member 65 and the first side sheet 23 A to generate the same effect as the member 65 bonded to the second side sheet 23 B (see FIG. 11( b )).
- the bent-edged plate member 65 is inserted between the second side sheet 23 B and the hair strand to produce the same effect as the member 65 bonded to the second side sheet 23 B (see FIG. 11( b )).
- the hair holder of the present invention is not limited to the above-described embodiments, and various changes and modifications can be made thereto without departing from the spirit and scope thereof.
- the stress relaxing means is not limited to those used in the foregoing embodiments. Any stress relaxing means can be used as long as it is capable of relaxing the stress exerted on the hair strand inserted through the first opening of the tube.
- the first side sheet 23 A and the second side sheet 23 B may be formed of a single sheet material. In that case, the sheet material is folded into two along its longitudinal centerline to make the tube 2 .
- the application of the hair holder according to the present invention includes not only permanent waving but also other techniques for curling hair such as hot curling (heat is applied to a rolled strand of hair using a hair dryer, etc.), cold curling (a strand of hair, either dry or wet, is rolled up and just left for a period of time to conform to the shape).
- hot curling heat is applied to a rolled strand of hair using a hair dryer, etc.
- cold curling a strand of hair, either dry or wet, is rolled up and just left for a period of time to conform to the shape.
- the hair holder according to the present invention hardly causes a strand of hair to bend undesirably near the inlet of its tube.
Abstract
A hair holder 1 including a tube 2 configured to have a strand of hair inserted from its opening (21) at one end toward its opening (22) at the opposite end. The tube 2 is formed of a first side sheet 23A that is to be an inner side when rolled up and a second side sheet 23B that is to be an outer side when rolled up. The first side sheet 23A and/or the second side sheet 23B has a Taber stiffness of 0.4 mN·m or more. The tube 2 is provided, in or on its portion forming the opening 21, with a stress relaxing means that relaxes the stress applied to a hair strand having been inserted through the opening 21.
Description
- The present invention relates to a hair holder used to roll a strand of hair into a desired shape.
-
Patent Document 1 discloses a hair holder comprising a flat tube formed of a sheet in such a design to allow a strand of hair to be inserted from an opening at one end toward an opening at the other end. Examples of the tube of the hair holder described inPatent Document 1 include a tube having substantially no extensibility in the longitudinal direction formed by joining two sheets along their long side edges, one of the sheets having a Taber stiffness of 0.4 mN·m or less, and the other having a Taber stiffness of more than 0.4 mN·m. - It is possible with the hair holder having the above-specified tube to curl a hair strand inserted into the tube easily, certainly, and neatly without using a curling rod.
- Patent Document 1: JP 2003-319815A
- The problem of the hair holder disclosed in
Patent Document 1 is that the hair in the tube is liable to bend awkwardly near the inlet (one of the openings) of the tube, for example, when a large amount of hair is inserted into the tube or when damaged hair is rolled up with the tube and permed. Undesirably bent hair will be set as it is and, in extreme cases, may break off at the bend. - The present invention relates to a hair holder that hardly causes hair to bend undesirably near the inlet of its tube even when a large amount of hair is inserted into the tube or when damaged hair is rolled up with the tube.
- The invention provides a hair holder including a tube having an opening at one end (hereinafter “a first opening”) and an opening at the opposite end (hereinafter “a second opening”) thereof and configured to have a strand of hair inserted from the first opening toward the second opening. The tube has a first side that is to be an inner side when rolled up and a second side that is to be an outer side when rolled up. The tube is formed of a first side sheet defining the first side and a second side sheet defining the second side. The first side sheet and/or the second side sheet has a Taber stiffness of 0.4 mN·m or more. The tube is provided, around the first opening thereof, with a stress relaxing means that relaxes the stress imposed to a hair strand having been inserted through the first opening.
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FIG. 1( a) is a perspective front view of a hair holder according to a first embodiment of the present invention. -
FIG. 1( b) is a perspective rear view of the hair holder of the first embodiment. -
FIG. 1( c) is a cross-section taken along line segment C-C inFIG. 1( b). -
FIG. 2 is a perspective of the hair holder of the first embodiment in its self-rolled state. -
FIG. 3 is a fragmentary rear view showing the first opening of the tube of the hair holder according to the first embodiment. -
FIG. 4( a) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment. -
FIG. 4( b) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment. -
FIG. 4( c) is a perspective view illustrating the way of curling a hair strand using the hair holder of the first embodiment. -
FIG. 5 is a perspective view of the hair holder of the first embodiment having a hair strand inserted therein. -
FIG. 6( a) is a fragmentary rear view showing the first opening of the tube of a hair holder according to a second embodiment (corresponding toFIG. 3) . -
FIG. 6( b) is a cross-section taken along line segment X-X inFIG. 6( a). -
FIG. 7( a) is a fragmentary perspective view showing the first opening of the tube of a hair holder according to a third embodiment. -
FIG. 7( b) is a side view ofFIG. 7( a). -
FIG. 8 is a fragmentary rear view showing the first opening of the tube of a hair holder according to a fourth embodiment (corresponding toFIG. 3 ). -
FIG. 9 is a fragmentary rear view showing the first opening of the tube of a hair holder according to a fifth embodiment (corresponding toFIG. 3 ). -
FIG. 10( a) is a fragmentary rear view showing the first opening of the tube of a hair holder according to a sixth embodiment (corresponding toFIG. 3) . -
FIG. 10( b) is a fragmentary view of a sheet material forming the second side sheet of the hair holder of the sixth embodiment. -
FIG. 11( a) is a perspective view of a bent-edged plate member used in a hair holder of a seventh embodiment. -
FIG. 11( b) is a fragmentary cross-section of the hair holder of the seventh embodiment, showing the first opening of the tube (corresponding toFIG. 6( b)). - The hair holder of the present invention will be described with reference to its first preferred embodiment by way of the accompanying drawings.
- As illustrated in
FIGS. 1( a) to 3, the first embodiment provides ahair holder 1 including atube 2 configured to have a hair strand inserted therethrough from a first opening 21 at one end to a second opening 22 at the other end. Thetube 2 has a first side that is to be an inner side when rolled up and a second side that is to be an outer side when rolled up. Thetube 2 is formed of afirst side sheet 23A defining the first side and asecond side sheet 23B defining the second side. Thefirst side sheet 23A and/or thesecond side sheet 23B has a Taber stiffness of 0.4 mN·m or more. Thetube 2 is provided, in or on its portion forming thefirst opening 21, with a stress relaxing means that relaxes the stress exerted on a hair strand having been inserted through thefirst opening 21. - The
hair holder 1 of the first embodiment will be described hereunder in detail. As illustrated inFIGS. 1( a) to 1(c), thehair holder 1 mainly includes thetube 2, anextension 4, and a pair oftightening tabs 3. - As illustrated, the
tube 2 has a flat shape and is configured to have a hair strand H (seeFIGS. 4( a) to 4(c)) inserted therethrough from thefirst opening 21 to the oppositesecond opening 22. Thetube 2 is formed by joining thefirst side sheet 23A and thesecond side sheet 23B. Specifically, thetube 2 is formed by joining thefirst side sheet 23A and thesecond side sheet 23B along theirlong side edges 24. Thefirst side sheet 23A defines the first side of the tube that is to be an inner side when the tube is rolled up. Thesecond side sheet 23B defines the second side of the tube that is to be an outer side when the tube is rolled up. - The
tube 2 preferably measures 50 to 350 mm in length, 20 to 100 mm in width. These dimensions can be decided as appropriate to the length of the hair, what part of the hair is to be curled, and the amount of hair of the hair strand to be inserted. - In describing the
first side sheet 23A and thesecond side sheet 23B in common, these two sheets will be generically called base sheets 23. Examples of materials forming the base sheets 23 include nonwoven fabrics (such as polyethylene nonwoven fabric and polyethylene terephthalate nonwoven fabric), woven fabrics, mesh sheets, porous or non-porous resin films (e.g., polyethylene film and polyethylene terephthalate film), paper, polymer sheets, rubber sheets, and composites of these materials. The base sheets 23 each preferably have a thickness of 30 to 500 μm. - The
second side sheet 23B has a plurality ofslits 26 that are long in the lateral direction of thesheet 23B and are spacedly arranged in the longitudinal direction of thesheet 23B. Theslits 26 are provided primarily for the purpose of enhancing the extensibility of thesecond side sheet 23B. In the first embodiment, eachslit 26 has a circular hole punched out at bothends 26A. The middle part of theslit 26 between theends 26A is formed by slitting with a thin blade. - An
engageable member 52 engageable with an engaging member 51 (described infra) is provided on thesecond side sheet 23B near thefirst opening 21. Theengageable member 52 also has theslit 26 cut across. Thesecond side sheet 23B, while sectioned by theslits 26, is still a unitary strip-shaped sheet as a whole. Theengageable member 52 can be of any material as long as it is engageable with the engagingmember 51, for example, nonwovens. Theengageable member 52 preferably has a certain amount of length, for example, 2 to 15 cm, in the longitudinal direction of thetube 2 because the longitudinal position of the engagement with the engagingmember 51 varies depending on the final diameter of the roll of thetube 2. - In the first embodiment, the
first side sheet 23A is formed of polyester nonwoven fabric having a weight of 150 g/m2 and has noslits 26, and thesecond side sheet 23B is formed of polyester nonwoven fabric having a weight of 50 g/m2 and has tenslits 26. - One of, or both of, the
first side sheet 23A and thesecond side sheet 23B has/have a Taber stiffness of 0.4 mN·m or more, preferably 1 mN·m or more. With that Taber stiffness, thetube 2 having a hair strand H inserted therethrough is rolled up neatly with no aid of a curling rod. - When only one of the base sheets 23 has a Taber stiffness of 0.4 mN·m or more, it is preferred that the base sheet 23 with that Taber stiffness be the
first side sheet 23A. It is particularly preferred that both the base sheets 23 have a Taber stiffness of 0.4 mN·m or more. - The upper limit of the Taber stiffness is 10 mN·m in view of ease of rolling the
tube 2. - The Taber stiffness is measured in accordance with the stiffness testing method specified in JIS P8125.
- The
second side sheet 23B has its long side edges reinforced by bonding thereto a reinforcing member B the width of which is almost the same as the width of the side joints (seal) between the base sheets 23. The reinforcing members B adhered to thesecond side sheet 23B increase the overall Taber stiffness of thetube 2. The reinforcing member B is provided on only the side edges 24 of thetube 2 so that the ease of widening thefirst opening 21 of thetube 2 is not affected, nor is affected ease of inserting a hair strand H into thetube 2. - The
tube 2 is adapted to roll itself up into a prescribed shape and keep the rolled state. Specifically, thetube 2 has been adapted by a prescribed means to have the property of reverting to a previously defined rolled-up state with thesecond side sheet 23B out and keeping the rolled up state as illustrated inFIG. 2 . - Therefore, when the
tube 2 in the unrolled, straightened state (as illustrated inFIGS. 1( a) to 1(c)) is let free, it spontaneously returns to its previously defined rolled shape as illustrated inFIG. 2 . Thehair holder 1 having such a self-rollingtube 2 needs no rolling operation. There is another advantage that means for maintaining the rolled state, such as a clip, is unnecessary. - The self-rolling
tube 2 can be obtained by rolling up a tube, fixing the tube in the rolled up state by a prescribed means, and heating the rolled up tube to a prescribed temperature to make the tube memorize the rolled shape. - The
hair holder 1 has anextension 4 extending from the end of thefirst side sheet 23A forming thefirst opening 21 in the longitudinal direction of the tube 2 (opposite to the direction of inserting a hair strand H) as illustrated inFIGS. 1( a) to 1(c). In the first embodiment, thefirst side sheet 23A and theextension 4 are integral with each other. - The
extension 4 has an engagingmember 51 on its side opposite to thesecond side sheet 23B. After thetube 2 self-rolls, the engagingmember 51 engages with theengageable member 52 to maintain the roll shape of thetube 2. The engagingmember 51 is exemplified by a male member of a mechanical fastener. - The engaging
member 51 may be capable of engaging with thesecond side sheet 23B depending on the material of thesecond side sheet 23B. - A pair of tightening
tabs 3 are provided on thelong sides 24 of thetube 2 near thesecond opening 22. Eachtightening tab 3 is a semicircle extending laterally outward from theside 24. - The
first side sheet 23A, thesecond side sheet 23B, and the reinforcing member B each has extensions corresponding to thetightening tabs 3. In other words, the tighteningtabs 3 are formed of a laminate of the extensions of thefirst side sheet 23A, thesecond side sheet 23B, and the reinforcing member B. - The method of forming the tightening
tabs 3 and their shape, size, thickness, position, etc. are decided as appropriate. - A stress relaxing means for relaxing the stress applied to a hair strand H having been inserted through the
first opening 21 is provided in a portion of the tube forming the first opening 21 (hereinafter “a first-opening-forming portion”). The stress relaxing means adapted in the first embodiment is aflap 61 provided in the first-opening-forming portion of thesecond side sheet 23B. Theflap 61 is not joined to thefirst side sheet 23A. - The
flap 61 is a part of the first-opening-forming portion of thesecond side sheet 23B and is not joined to thefirst side sheet 23A nor to theextension 4. The length of theflap 61 along the longitudinal direction of thetube 2 is appropriately decided. It is preferably from 1 to 30 mm, more preferably 5 to 15 mm. Theflap 61 is configured to bend back from thefirst side sheet 23A along abase line 61A connecting two first-opening-sided ends of the opposite joined sides 24. The shape of theflap 61 is not limited to a rectangle as in the first embodiment shown and may be, for example, a trapezoid, a semiellipse or a semicircle. - The
flap 61 has at least one slit 62 extending in the longitudinal direction of thetube 2. The length, number, interval of theslits 62 are decided appropriately. The length of theslit 62 is, for example, such that theslit 62 exceeds the above-identifiedbase line 61A, specifically from 2 to 40 mm. The number of theslits 62 is, for example, 1 to 8. The interval of theslits 62 is, for example, 5 to 20 mm. - Usage of the hair holder according to the first embodiment will be described taking, for instance, application to permanent waving by way of
FIGS. 4( a) to 4(c). - First of all, a
hair holder 1 having atube 2 with appropriate length and width is chosen according to the amount of hair of a hair strand H or a desired curling style. As shown inFIG. 4( a), thefirst opening 21 of thetube 2 is widened to make an elliptic opening, and a hair strand H is introduced into thefirst opening 21. - After the hair strand H is inserted through the
tube 2, thetube 2 is rolled up from thesecond opening 22 with thefirst side sheet 23A inside as illustrated inFIGS. 4( a) and 4(b). While thetube 2 of the first embodiment self-rolls since it has been so adapted as to retain its previously defined rolled state, rolling thetube 2 while pinching the tighteningtabs 3 between fingers will ensure the rolling with a desired tightness. - After the
tube 2 is rolled up, the engagingmember 51 engages with theengageable member 52 as illustrated inFIG. 4( c). As a result, thetube 2 is fixed in its rolled state with a prescribed diameter. - Thereafter a hair treating agent for permanent waving is applied to the hair strand H from the outside of the
tube 2. After an elapse of a given time, the hair strand H is released from thetube 2 and subjected to post-treatment such as shampooing to complete permanent waving. - The
first opening 21 of thetube 2 can be widened into a circular shape when a hair strand H is inserted therethrough, which will be more helpful to insert the hair strand H smoothly. A hair inserter (not shown) having a hair catching hook may be used to help a user to insert a hair strand H. The tip of the hair strand H may stick out of thesecond opening 22. - After the
tube 2 having the hair strand H therein is rolled with thefirst side sheet 23A inside, the hair strand H inserted in thetube 2 and rolled up generates a force to return to its original straight state. As a result, the part of the hair strand H near thefirst opening 21 is given a stress to bend. - Hence, the
hair holder 1 of the first embodiment has theflap 61 provided at the first-opening-forming end of thetube 2 as a stress relaxing means for relaxing the stress exerted on the hair strand H having been inserted through thefirst opening 21. Theflap 61 is a first-opening-forming portion of thesecond side sheet 23B that is not joined to thefirst side sheet 23A. - As shown in
FIG. 5 , theflap 61 bends back away from thefirst side sheet 23A so that the stress imposed to the part of the hair strand H near thefirst opening 21 of thetube 2 is relaxed. With theflap 61 being pushed to the direction of bending by the hair strand H, a reaction force will be generated to move the rolledtube 2 in the direction indicated by arrow D inFIG. 5 . By this movement, the stress on the hair strand H near thefirst opening 21 will be further relaxed. As a result, even when a large amount of hair is inserted into thetube 2 or when damaged hair is rolled up with thetube 2, the hair strand H is less likely to bend near thefirst opening 21 of thetube 2. - In particular, since the
flap 61 used in the first embodiment hasslits 62 cut therein, theflap 61 bends back while spreading in the lateral direction of thetube 2, which enhances the stress relaxing effect on the hair strand H. - Second to seventh embodiments of the hair holder according to the present invention will then be illustrated. The description will generally be confined to the differences from the first embodiment. The description on the first embodiment applies to the second to seventh embodiments unless otherwise specified. The hair holders of the second to seventh embodiments can be used in the same manner as that of the first embodiment to produce the same effects as in the first embodiment.
- The hair holder of the second embodiment is designed such that the
flap 61 exerts a restoring force toward thefirst side sheet 23A (a restoring force in the direction indicated by the arrow inFIG. 6( b) about thebase line 61A as an axis as illustrated inFIG. 6) . The hair holder of the second embodiment is otherwise structurally the same as that of the first embodiment. As illustrated inFIGS. 6( a) and 6(b), theflap 61 in the second embodiment has the reinforcing member B bonded to its both sides. The reinforcing member B causes, by its stiffness, theflap 61 to exert a restoring force to thefirst side sheet 23A. The reinforcing member B on both sides of theflap 61 is an extension from the reinforcing member B provided on bothsides 24 of thefirst side sheet 23A. - In addition to the provision of the reinforcing member B on the
flap 61, configurations by which theflap 61 is made to exert a restoring force to thefirst side sheet 23A include making theflap 61 of a shape memory material having the property of reverting to its original shape. - As stated, the hair holder of the second embodiment is structurally the same as that of the first embodiment and is additionally configured so that the
flap 61 may exert a restoring force to thefirst side sheet 23A. It follows that the second embodiment offers the advantage that theflap 61 hardly loses its resilience even after repeated use in addition to the effects of the first embodiment. Aflap 61 having lost its resilience would be liable to cause a hindrance in using the hair holder or inconvenience in handling the hair holder and fail to produce the stress relaxing effect (the effect to relaxing the stress applied to the hair strand). Accordingly, theflap 61 that exerts a restoring force to thefirst side sheet 23A and hardly loses resilience continues exhibiting the stress relaxing effect without causing a hindrance in using the hair holder or inconvenience in handling the hair holder. - If the restoring force of the
flap 61 is too strong, which may interfere with stress relaxation, the object primarily aimed at in the invention. Accordingly, the restoring force of theflap 61 is preferably set within a range that does not impair the stress relaxing effect. - The stress relaxing means adopted in the third embodiment of the hair holder is a bulge provided in the first-opening-forming portion of the
second side sheet 23B as illustrated inFIGS. 7( a) and 7(b). The bulge is shaped by bending back the first-opening-forming portion of thesecond side sheet 23B away from thefirst side sheet 23A. Such a bent-back shape is formed by plastic deformation of first-opening-forming portion (inclusive of the edge 25) of thesecond side sheet 23B. The amount of bending back L1 of thesecond side sheet 23B is decided as appropriate and is preferably from 5 to 30 mm. - According to the third embodiment, after the
tube 2 having a hair strand H inserted therein is rolled up, the hair strand H near thefirst opening 21 of thetube 2 is allowed to move to thesecond side sheet 23B forming the bulge so that the stress imposed to the hair strand H can be relaxed. Thus, the same effect as in the first embodiment is achieved. - The stress relaxing means adopted in the fourth embodiment of the hair holder is a
cutout 25 made in the first-opening-forming portion of thesecond side sheet 23B as illustrated inFIG. 8 . Thecutout 25 is concave toward thesecond opening 22. The shape of thecutout 25 may be, for example, a semiellipse or a semicircle. The depth L2 of thecutout 25 is decided appropriately. It is preferably 5 to 30 mm. - According to the fourth embodiment, after the
tube 2 having a hair strand H inserted therein is rolled up, the hair strand H near thefirst opening 21 of thetube 2 is allowed to move to the edge of thecutout 25 so that the stress imposed to the hair strand H can be relaxed. Thus, the same effect as in the first embodiment is achieved. - A stress relaxing means adopted in the fifth embodiment of the hair holder is a
stretch material 63 that is stretchable under a small load provided on the first-opening-forming portion of thesecond side sheet 23B as illustrated inFIG. 9 . The length of the stretch material (in the longitudinal direction of the tube 2) is decided appropriately. It is preferably 10 to 50 mm. The phrase “stretchable under a small load” means to be capable of stretching at 5% or more under a load of 5 N. Examples of such a stretch material include polyethylene nonwovens, polypropylene nonwovens, polyester nonwovens, rubber thread wovens, and rubber fiber nonwovens. - The
stretch material 63 includes a portion E unjoined to thefirst side sheet 23A and located nearer to thefirst opening 21 than to the second opening 22 (seeFIG. 9 ). - The
tube 2 having thestretch material 63 on the first-opening-forming portion of thesecond side sheet 23B is obtained by uniting thestretch material 63 to a material that does not stretch under a small load in the longitudinal direction of thetube 2 or by disposing thestretch material 63 longitudinally next to the second described material with an unbonded overlap. - According to the fifth embodiment, after the
tube 2 having a hair strand H inserted therein is rolled up, the hair strand H near thefirst opening 21 of thetube 2 pushes thestretch material 63 to cause it to stretch and thereby moves away from thefirst side sheet 23A so that the stress imposed to the hair strand H can be relaxed. Thus, the same effect as in the first embodiment is achieved. - A stress relaxing means adopted in the sixth embodiment of the hair holder is a folded
portion 64 provided in the first-opening-forming portion of thesecond side sheet 23B and having a part thereof folded in the lateral direction of thetube 2 as illustrated inFIG. 10( a). The amount of folding in the lateral direction is decided as appropriate to the desired amount of stress relaxation. - The
second side sheet 23B having the foldedportion 64 shown inFIG. 10( a) is obtained using a sheet material having apentagonal region 64′ at its end that will provide thefirst opening 21 as illustrated inFIG. 10( b). Thepentagonal region 64′ is folded along V-shapedfolding line 64A into a rectangle. Thesecond side sheet 23B with the resulting foldedportion 64 is then joined to thefirst side sheet 23A along both side edges 24 to make thetube 2. - According to the sixth embodiment, after the
tube 2 having a hair strand H inserted therein is rolled up, the hair strand H near thefirst opening 21 of thetube 2 pushes the foldedportion 64 to unfold it and thereby moves away from thefirst side sheet 23A so that the stress imposed to the hair strand H can be relaxed. Thus, the same effect as in the first embodiment is achieved. - In the sixth embodiment, while not shown, the folded portion as a stress relaxing means may be replaced with a portion slackened in the lateral direction of the
tube 2 provided in the first-opening-forming portion of thesecond side sheet 23B. - A stress relaxing means adopted in the seventh embodiment of the hair holder is a bent-edged
plate member 65 provided along the first-opening-forming portion of thesecond side sheet 23B as illustrated inFIGS. 11( a) and 11(b). The bent-edgedplate member 65 includes a bendingportion 65A sticking from thefirst opening 21 and bending toward thesecond side sheet 23B away from thefirst side sheet 23A. - As illustrated in
FIG. 11( a), the bent-edgedplate member 65 is nearly triangular in a plan view and has its upper side edge bent outward in a side view. The bent-edgedplate member 65 is formed of, for example, resin film or metal. As illustrated inFIG. 11( b), the bent-edgedplate member 65 is bonded to the inner side of the first-opening-forming portion of thesecond side sheet 23B with its bendingportion 65A sticking outward from thefirst opening 21 and bending from thefirst side sheet 23A toward thesecond side sheet 23B. - According to the seventh embodiment, after the
tube 2 having a hair strand H inserted therein is rolled up, the hair strand H near thefirst opening 21 of thetube 2 is allowed to move to the bendingportion 65A of the bent-edgedplate member 65 so that the stress imposed to the hair strand H can be relaxed. Thus, the same effect as in the first embodiment is achieved. - The bent-edged
plate member 65 may be either bonded, as described above, or non-bonded to thesecond side sheet 23B of thetube 2. The bent-edgedplate member 65 that is not bonded is used as disposed at thefirst opening 21 so that a hair strand H is inserted from thefirst opening 21 between themember 65 and thefirst side sheet 23A to generate the same effect as themember 65 bonded to thesecond side sheet 23B (seeFIG. 11( b)). - Alternatively, after the
tube 2 having a hair strand H inserted therethrough is rolled up, the bent-edgedplate member 65 is inserted between thesecond side sheet 23B and the hair strand to produce the same effect as themember 65 bonded to thesecond side sheet 23B (seeFIG. 11( b)). - The hair holder of the present invention is not limited to the above-described embodiments, and various changes and modifications can be made thereto without departing from the spirit and scope thereof.
- The stress relaxing means is not limited to those used in the foregoing embodiments. Any stress relaxing means can be used as long as it is capable of relaxing the stress exerted on the hair strand inserted through the first opening of the tube.
- The
first side sheet 23A and thesecond side sheet 23B may be formed of a single sheet material. In that case, the sheet material is folded into two along its longitudinal centerline to make thetube 2. - The application of the hair holder according to the present invention includes not only permanent waving but also other techniques for curling hair such as hot curling (heat is applied to a rolled strand of hair using a hair dryer, etc.), cold curling (a strand of hair, either dry or wet, is rolled up and just left for a period of time to conform to the shape).
- The hair holder according to the present invention hardly causes a strand of hair to bend undesirably near the inlet of its tube.
Claims (8)
1. A hair holder comprising a tube having an opening at one end and an opening at the opposite end thereof and configured to have a strand of hair inserted from the opening at one end toward the opening at the opposite end,
the tube having a first side that is to be an inner side when rolled up and a second side that is to be an outer side when rolled up and having a first side sheet defining the first side and a second side sheet defining the second side, at least one of the first side sheet and the second side sheet having a Taber stiffness of 0.4 mN·m or more, and
the tube being provided with a stress relaxing means in or on its portion forming the opening at one end, the stress relaxing means being adapted to relax the stress applied to a hair strand having been inserted through the first opening.
2. The hair holder according to claim 1 , wherein the stress relaxing means is a flap provided in the portion forming the opening at one end of the second side sheet, the flap being not joined to the first side sheet.
3. The hair holder according to claim 2 , wherein the flap has a reinforcing member bonded thereto such that the reinforcing member causes, by its stiffness, the flap to exert a restoring force to the first side sheet.
4. The hair holder according to claim 1 , wherein the stress relaxing means is a bulge provided in the portion forming the opening at one end of the second side sheet.
5. The hair holder according to claim 1 , wherein the stress relaxing means is a cutout made in the portion forming the opening at one end of the second side sheet.
6. The hair holder according to claim 1 , wherein the stress relaxing means is a stretch material provided on the portion forming the opening at one end of the second side sheet, the stretch material being stretchable under a small load.
7. The hair holder according to claim 1 , wherein the stress relaxing means is a portion folded or slackened in the lateral direction of the tube and provided in the portion forming the opening at one end of the second side sheet.
8. The hair holder according to claim 1 , wherein the stress relaxing means is a bent-edged plate member provided on the portion forming the opening at one end of the second side sheet, the bent-edged plate member having a bending portion sticking outward from the opening at one end and bending toward the second side sheet away from the first side sheet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2005264004 | 2005-09-12 | ||
JP2005-264004 | 2005-09-12 | ||
PCT/JP2006/317629 WO2007032235A1 (en) | 2005-09-12 | 2006-09-06 | Hair holder |
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US20080302381A1 true US20080302381A1 (en) | 2008-12-11 |
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CN (1) | CN101262794A (en) |
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US20120211021A1 (en) * | 2011-02-21 | 2012-08-23 | Shih-Ling Hsu | Hairstyling Device |
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US9615643B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US9629434B2 (en) | 2010-12-17 | 2017-04-25 | Tf3 Limited | Hair styling device |
US9854891B2 (en) | 2007-12-17 | 2018-01-02 | Tf3 Limited | Hair styling aid |
US20180317622A1 (en) * | 2017-05-02 | 2018-11-08 | MaySeven Corp. | Flexible hair roller |
US10485317B2 (en) | 2014-03-07 | 2019-11-26 | Hd3 Limited | Hair styling device |
US10772406B2 (en) | 2013-02-05 | 2020-09-15 | Hd3 Limited | Hair styling device |
US20200390215A1 (en) * | 2017-12-14 | 2020-12-17 | Kao Corporation | Hair holding tool and method for manufacturing same |
US20220110429A1 (en) * | 2019-02-01 | 2022-04-14 | Kao Corporation | Hair treatment method and hair holder |
EP3939469A4 (en) * | 2019-03-13 | 2022-10-26 | Kao Corporation | Hair holding tool and hair treatment method using same |
US20230189955A1 (en) * | 2019-08-09 | 2023-06-22 | Kao Corporation | Hair holder, method for manufacturing hair holder, and hair treatment method using hair holder |
US11744344B1 (en) * | 2021-01-12 | 2023-09-05 | Mary Vitucci Tanner | Curling device |
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EP3689179B1 (en) * | 2019-02-01 | 2022-01-05 | Kao Corporation | Hair treatment method and hair holder |
JP6735431B1 (en) * | 2019-02-01 | 2020-08-05 | 花王株式会社 | Hair holder, method for manufacturing the hair holder, and method for using the hair holder |
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US20140076351A1 (en) * | 2011-05-09 | 2014-03-20 | Sf3 Limited | Hair styling device |
US9138039B2 (en) * | 2011-05-09 | 2015-09-22 | Sf3 Limited | Hair styling device |
US9615643B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US9615644B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US10772406B2 (en) | 2013-02-05 | 2020-09-15 | Hd3 Limited | Hair styling device |
US10485317B2 (en) | 2014-03-07 | 2019-11-26 | Hd3 Limited | Hair styling device |
US20180317622A1 (en) * | 2017-05-02 | 2018-11-08 | MaySeven Corp. | Flexible hair roller |
US20200390215A1 (en) * | 2017-12-14 | 2020-12-17 | Kao Corporation | Hair holding tool and method for manufacturing same |
US11559124B2 (en) * | 2017-12-14 | 2023-01-24 | Kao Corporation | Hair holding tool and method for manufacturing same |
US20220110429A1 (en) * | 2019-02-01 | 2022-04-14 | Kao Corporation | Hair treatment method and hair holder |
EP3939469A4 (en) * | 2019-03-13 | 2022-10-26 | Kao Corporation | Hair holding tool and hair treatment method using same |
US20230189955A1 (en) * | 2019-08-09 | 2023-06-22 | Kao Corporation | Hair holder, method for manufacturing hair holder, and hair treatment method using hair holder |
EP4011238A4 (en) * | 2019-08-09 | 2023-08-23 | Kao Corporation | Hair holder, method for manufacturing hair holder, and hair treatment method using hair holder |
US11744344B1 (en) * | 2021-01-12 | 2023-09-05 | Mary Vitucci Tanner | Curling device |
Also Published As
Publication number | Publication date |
---|---|
EP1925228A4 (en) | 2011-02-02 |
CN101262794A (en) | 2008-09-10 |
EP1925228A1 (en) | 2008-05-28 |
WO2007032235A1 (en) | 2007-03-22 |
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Owner name: KAO CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOJO, TAKEHIKO;ORII, TAKAO;REEL/FRAME:020621/0615;SIGNING DATES FROM 20080212 TO 20080214 |
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