WO2019131734A1 - Hair-holding instrument - Google Patents

Abstract

This hair-holding instrument (1A) is provided with a tubular body (2) configured such that strands of hair can be inserted therein from an opening (21) at one end to an opening (22) at the other end. The tubular body (2) has a longitudinal direction, and a width direction (Y) orthogonal to the longitudinal direction (X). The tubular body (2) has: a pair of seam parts (24) in which two or more sheets (23A, 23B) are integrated by sewing; and a tubular part (26) into which the strands of hair are inserted, the tubular part (26) being positioned between the pair of seam parts. The pair of seam parts (24) extend along the longitudinal direction (X) of the tubular body (2), and are provided with an arrangement area (24S) in which stitches (24a) are arranged, the stitches (24a) having a width in the width direction (Y) of the tubular body (2). The hair-holding instrument (1A) configured in this manner has exceptional durability in relation to repeated use, and also has high hoisting force.

Description

Hair holder

The present invention relates to a hair holder.

The applicant has previously provided a hair holder comprising a tubular body through which a hair bundle is inserted, and a winding means capable of fixing the cylindrical body in a winding state of a plurality of types of winding diameters. It is proposed (patent document 1). Patent Document 1 describes that the cylindrical body of the hair holder is formed by stitching, fusing or adhering two sheets.

Further, Patent Document 2 discloses a hair holder having a pocket portion in which a hair bundle is inserted from the insertion opening toward the outlet of the other end. Patent Document 2 describes that two plastic sheets are joined by heat sealing to form a pocket.

JP 2004-209237 A U.S. Pat. No. 3,255,765

The present invention includes a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body having a longitudinal direction and a width direction orthogonal to the longitudinal direction. It is a hair holder. The tubular body has a pair of sutures in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutures is inserted. Each of the pair of suture portions extends along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. . The two or more sheets include the sheet constituting the cylindrical portion, and some or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet. The sheet positioned on the outside at the time of rolling up of the tubular body has a longer seam length in the stitching portion than the sheet positioned on the inside.

The present invention also includes a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body being in the longitudinal direction and in the width direction orthogonal to the longitudinal direction A hair holder. The tubular body has a pair of sutures in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutures is inserted. Each of the pair of suture portions extends along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. . The two or more sheets include a sheet constituting the cylindrical portion and a reinforcing material disposed in each of the pair of suture portions. The sheet that constitutes the cylindrical portion is a non-woven fabric, and the reinforcing material is a resin film. A part or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet.

FIG. 1 is (a) front view and (b) back view showing an embodiment of the hair holder of the present invention. FIG. 2: is a perspective view which shows the state which wound the hair holder shown in FIG. 1 which penetrated hair bundle, and was made into roll shape. FIG. 3 is a front view showing another embodiment of the hair holder of the present invention. FIG. 4 is a view showing a variation of the sutured portion of the hair holder shown in FIG. 5 (a) to 5 (c) are perspective views sequentially showing a procedure for applying a curl to a hair bundle using the hair holder shown in FIG. FIG. 6 is a graph showing the bonding strength of the sutured parts of Reference Examples 1 to 5. Fig.7 (a) and (b) is a figure which shows the hair holder which has a reinforcing material, and is sectional drawing seen in the thickness direction along the width direction of a cylindrical body. 8 (a) is an enlarged plan view showing the seam length and stitch pitch of the straight stitch portion shown in FIG. 1 (a), and FIG. 8 (b) is the straight stitch shown in FIG. 1 (b) It is an enlarged plan view which shows the length of the seam of a part, and the pitch of a seam. FIGS. 9 (a) and 9 (b) are enlarged plan views for explaining the seam length and seam pitch of the bent seam.

Detailed Description of the Invention

The hair holders described in Patent Documents 1 and 2 can be used for a hot permanent to which perm fluid is added and heated while being wound up, and a cold permanent to which only permanent fluid is added. In the hair holder described in Patent Document 2, when used repeatedly for a permanent such as a hot permanent, the bonded portion of the two sheets may be broken, so that the durability against repeated use of the permanent was insufficient. The hair holder described in Patent Document 1 also has room for improvement in durability against repeated use of permanents. In addition, from the viewpoint of firmly curling the hair, the hair holder used for perms is required to have a large winding power.

Accordingly, the object of the present invention is to provide a hair holder having excellent durability against repeated use and high roll-up power.

Hereinafter, the hair holder of the present invention will be described based on its preferred embodiments with reference to the drawings. FIG. 1 shows one embodiment of the hair holder of the present invention. The hair holder 1A according to the first embodiment, as shown in FIGS. 1A and 1B, is a sheet 23A through which the hair bundle H can be inserted from the opening 21 at one end to the opening 22 at the other end. The cylindrical body 2 comprised by 23B is provided. The hair holder 1A of this embodiment has a longitudinal direction X and a width direction Y orthogonal to the longitudinal direction X. The cylindrical body 2 has a flat shape elongated in one direction, and has a longitudinal direction and a width direction orthogonal to the longitudinal direction. The longitudinal direction of the cylindrical body 2 coincides with the longitudinal direction X of the hair holder 1A, and the width direction of the cylindrical body coincides with the width direction of the hair holder 1A.

The hair holder 1A of the present embodiment is provided with a tubular body 2 formed of a one-sided sheet 23A located inside when being wound up and a two-sided sheet 23B located outside when being wound up. The tubular body 2 has a flat shape as shown in FIGS. 1A and 1B, and a pair of suture portions 24 in which two sheets 23A and 23B are integrated by stitching, and the pair of sutures It has the cylindrical part 26 in which the hair bundle H located between the parts 24 is inserted. In the present embodiment, the cylindrical portion 26 is a portion through which the hair bundle H inserted from the opening 21 at one end is inserted toward the opening 22 at the other end. The tubular body 2 integrates a sheet (hereinafter also referred to as "one-sided sheet") 23A forming one surface with a sheet (hereinafter also referred to as "other-surface sheet") 23B forming the other surface by stitching. It is formed.
Although the cylindrical body 2 of this embodiment is comprised by two sheets, the one-sided sheet 23A and the other side sheet 23B, the cylindrical body 2 may be comprised by two or more sheets. The two or more sheets include the sheet that constitutes the cylindrical portion 26. The sheet forming the tubular portion 26 is integrated with other sheets forming the tubular body 2 by stitching at the stitching portion 24, and the tubular portion 26 is formed between the pair of stitching portions 24 in the width direction Y. Form. In the present embodiment, among the two or more sheets, two sheets constituting the outer surface of the cylindrical portion 26, that is, the outermost layer of the cylindrical portion 26 are respectively described as the one-sided sheet 23A and the other-sided sheet 23B. Ru.
The hair holder 1 </ b> A has an extending portion 4 extending from an end on the opening 21 side of one end of the cylindrical body 2. Although the hair holder 1A may not have the extension portion 4, it is preferable to have the extension portion 4 from the viewpoint of facilitating the insertion operation of the hair bundle H.

Hereinafter, when the description common to the one-sided sheet 23A and the other-side sheet 23B or the common description to two or more sheets constituting the cylindrical portion 26 is performed, it is expressed as “base sheet 23”.
As a forming material of the base sheet 23, for example, non-woven fabric (polyethylene non-woven fabric, polyethylene terephthalate non-woven fabric, etc.), woven fabric, net-like sheet, porous or non-porous resin film (polyethylene film, polyethylene terephthalate film etc.), paper, A polymeric material sheet, a rubber sheet, or a composite of two or more of these may be mentioned.
The thickness of the substrate sheet 23 is preferably 5 μm or more, more preferably 10 μm or more, preferably 2000 μm or less, more preferably 1500 μm or less, and preferably 5 μm to 2000 μm or less, more preferably 10 μm to 1500 μm or less It is.

The cylindrical body 2 of the present embodiment is configured to be able to be wound up. The structure which can be rolled up indicates that the cylindrical body 2 can be wound into a roll as shown in FIG. The tubular body 2 has a configuration that automatically rolls up. For example, in the natural state, the cylindrical body 2 is wound in a roll shape, and the cylindrical body 2 is stretched to insert the hair bundle H and then release the hand. There is a configuration in which the body 2 is rolled up with the hair bundle H. Such a configuration can be provided when any one or more of the two or more sheets constituting the cylindrical body 2 or all of them is a shape memory sheet. Specifically, a part or all of the sheets constituting the cylindrical portion 26 are formed of a shape memory sheet. The shape memory sheet can be formed by laminating sheets or films having different thermal contraction rates, or sheets or films having different tensions. Further, the cylindrical body 2 may be restored to the original roll shape stored by heating the base sheet 23 constituting the cylindrical body 2. The "natural state" means a state in which the hair holder is placed on a horizontal surface in a state where no external force is applied to the hair holder under an environment of temperature 20 ° C. and humidity 40%.

The base sheet 23 is preferably processed to improve the diffusion of a hair treatment agent such as perm solution. Such processing is not particularly limited, and examples thereof include embossing, calendering, resin film forming and the like. For example, in the embossing process, by forming a convex portion continuous in the longitudinal direction of the base sheet 23, the hair treatment agent can improve the diffusivity by being transmitted through the convex portion. Calendering can improve the diffusion of the hair treatment agent by adjusting the density of the base sheet 23. Resin film formation processing is to improve the diffusion of the hair treatment agent by forming a resin film with low liquid absorption property on a part or all of the base sheet 23 and reducing the liquid absorption amount of the whole base sheet. Can.

The tubular body 2 has a pair of suture portions 24, 24 in which two or more sheets constituting the tubular body 2 are integrated by stitching. The stitching portion 24 is a portion where two or more sheets constituting the cylindrical body 2 are stitched together with sewing thread. In the cylindrical body 2 of the present embodiment, the one-sided sheet 23A and the other-sided sheet 23B are joined to each other at a pair of suture portions 24. On the other hand, the one-sided sheet 23A and the other-sided sheet 23B are not joined to each other at portions other than the pair of suture portions 24. Each of the pair of sutures 24 extends along the longitudinal direction X of the tubular body 2, and the sutures 24 are arranged in such a manner that the seams 24 a have a width in the width direction of the tubular body 2. It has a field F1. The array area F1 is an area arranged along the longitudinal direction X so that the seams 24a have a width in the width direction Y. Here, the seam 24 a is a line segment formed by sewing one stitch, that is, a line segment formed by a sewing thread connecting two needle holes, and the sewing thread constitutes the cylindrical body 2. A loop formed by repeatedly passing through two or more sheets is exposed on each surface of the two sheets 23A and 23B which constitute the outer surface of the cylindrical portion 26. The outer surface of the cylindrical portion 26 is the surface on the side opposite to the outer surface of the cylindrical body 2, that is, the surface on the side where the hair bundle H is to be inserted.

The array area F1 of the present embodiment includes a plurality of linear stitched portions 24S in which the seams 24a are linearly arranged, and the plurality of linear stitched portions 24S are arranged in the width direction Y. In the arrangement area F1, as shown in FIG. 1A, the seams 24a having a width are formed by arranging the seams 24a forming the two straight stitched portions 24S aligned in the width direction Y in the width direction Y. It is arranged as follows. The array area F1 is preferably in the entire area from the one end side to the other end side along the longitudinal direction X. The pair of stitched portions 24 in the present embodiment are formed on both side edges 25 of the two sheets 23A and 23B and are parallel to each other. The pair of suture portions 24 is preferably parallel to each other along the longitudinal direction X from one end side to the other end side, but non-parallel portions may be formed. Further, in the pair of stitched portions 24, straight stitched portions 24S in which stitches 24a along the longitudinal direction X of the cylindrical body 2 are linearly arranged are formed in two rows in the width direction Y, respectively.

The suture portion 24 of the present embodiment will be described in detail. The sheet positioned on the outside at the time of rolling up of the tubular body 2 has a longer seam length in the stitching portion 24 than the sheet positioned on the inside. That is, the seam 24a in the stitching portion 24 of the other side sheet 23B is longer than the seam 34 in the stitching portion 24 of the one side sheet 23A. Such configuration is also referred to as configuration (1). From the viewpoint of improving the rolling-up force described later, the seam length L24a (see FIGS. 1A and 8A) of the seamed portion 24 of the opposite side sheet 23B corresponds to the seam of the seamed portion 24 of the first side sheet 23A. Preferably, it is 101% or more, more preferably 105% or more, and preferably 135% or less, more preferably 125% or less with respect to the length L34 (see FIGS. 1 (b) and 8 (b)). Also, it is preferably 101% or more and 135% or less, more preferably 105% or more and 125% or less.
From the same viewpoint as above, the seam length L24a [see FIGS. 1 (a) and 8 (a)] in the stitching portion 24 of the other side sheet 23B is preferably 1.5 mm or more, more preferably 2.0 mm. The above is preferable, 5.5 mm or less, more preferably 3.5 mm or less, and preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
From the same viewpoint as above, the seam length L34 (see FIGS. 1B and 8B) of the seamed portion 24 of the one side sheet 23A is the seam length L24a of the seamed portion 24 of the opposite side sheet 23B. It is preferably 1.5 mm or more, more preferably 2.0 mm or more, and preferably 5.5 mm or less, more preferably 3.5 mm or less, and preferably 1.5 mm or more, provided that the length is shorter than that. It is 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
The seam length is measured by the following method. First, for each of the one-sided sheet 23A and the other- sided sheet 23B, 20 stitches of arbitrary stitches in the stitching portion are selected. The length of each selected stitch is measured using the dimension measurement function of a digital microscope (manufactured by Keyence Corporation, VHX-6000), and the average value of these is taken as the length of the stitch. The dimension measurement function measures the length between both ends of each stitch by image processing.

The hair holder 1A of the present embodiment is provided with a cylindrical body 2 in which a part of the sheet is a shape memory sheet, and each of the pair of sutured parts 24 in the cylindrical body 2 is provided with the array area F1 described above. By providing such a configuration, the hair holder 1A is joined with excellent bonding strength while maintaining the flexibility of the sheets constituting the cylindrical body 2. Therefore, when winding up the hair bundle H, even if the stress that releases the bonding between the two or more sheets constituting the cylindrical body 2 is concentrated on the opening 21 side of one end of the cylindrical body 2, It has excellent durability. As a result, even if the hair holder 1A is repeatedly used for perming treatment such as hot permanent treatment, breakage is unlikely to occur at the portion on the opening 21 side of one end of the cylindrical body 2, and therefore, the hair holder 1A has excellent durability. On the other hand, the hair holder in which the side edges of two or more sheets constituting the cylindrical body 2 are joined by heat sealing alone is directed to the opening 21 side of one end of the cylindrical body 2 when winding up the hair bundle H. Since the resistance to concentrated stress is low, the portion on the opening 21 side at one end is easily broken and can not withstand repeated use of the permanent treatment.

In the cylindrical body 2, while the two or more sheets constituting the cylindrical body 2 are firmly joined by the pair of suture portions 24, the entire side edges of the two or more sheets are in close contact with each other. Also, I have some play. “Having some play” means that these two or more sheets are not joined at portions other than the suture portion 24 at the side edges of the two or more sheets. That is, although the joint strength of the two or more sheets is excellent, the play is provided to the part to reduce the resistance to the winding acting on any one or all of the two or more sheets. be able to. By this, it is possible to maintain the flexibility of these sheets without obstructing the winding force of the shape memory sheet and to effectively exhibit the winding force, so that the hair holder in which the two or more sheets are joined only by heat sealing It is also excellent in winding power. The roll-up force is a force for winding the hair holder 1A in a roll to apply curl to the hair bundle, and when the roll-up force is weak, it is difficult to give the hair bundle a curled shape. In addition, since the length of the seam of the sewn portion 24 is longer than that of the one-sided sheet 23A, the cylindrical body 2 is less likely to be distorted, and a beautiful winding can be formed. As a result, a clean curled shape can be imparted to the hair bundle held in the tubular body 2.

The hair holder 1A having the above-mentioned excellent bonding strength has two or more sheets constituting the cylindrical body 2 integrated as compared with the bonding of only the heat seal, so both sides of the hair holder 1A At the edge portion 25, the sheets do not easily separate from each other, and by unifying the sheets, the sheets can maintain flexibility and are not easily bent in the longitudinal direction X. Further, as described above, since the distortion does not easily occur in the cylindrical body 2, the cylindrical body 2 can be smoothly wound up. That is, it is excellent in the workability of the winding-up operation | work of hair holder 1A.

The suture portion 24 is preferably formed on both side edges of two or more sheets, but may be formed on portions other than the side edges of one or both sheets.
In addition, the hair holder 1A has a straight stitched portion 24S in which a plurality of stitches are linearly arranged at both side edge portions 25 respectively. That is, in the hair holder 1A, each of the pair of stitched portions 24 includes a region including a plurality of linear stitched portions 24S in which the seams 24a are linearly arranged as the above-described arrayed area F1. With such a configuration, even if the seamed portion 24 is frayed, two or more sheets constituting the cylindrical body 2 are unlikely to be separated from each other. The pair of stitched portions 24 in the present embodiment has two straight stitched portions 24S formed in the array area F1, but two or more straight stitched portions 24S may be formed, three It may be formed above.
Further, as described above, in the arrangement area F1, each of the pair of stitched portions 24 is formed such that two or more straight stitched portions 24S along the longitudinal direction X of the cylindrical body 2 are aligned in the width direction Y However, the suture portion 24 may have a portion which is not aligned more than two.

The hair holder 1A may be a sheet in which any one or all of the two or more sheets constituting the cylindrical body 2 are made of non-woven fabric. For example, in the case where the tubular body 2 is a one-sided sheet 23A or the other-side sheet 23B made of a non-woven fabric, the basis weight of the fibers constituting the non-woven fabric may affect the bonding strength between the sheets 23A and 23B The bonding strength of the seamed portion 24 formed by straight stitching is not easily affected by the basis weight. Therefore, the hair holder 1A can firmly join the one-sided sheet 23A and the other-sided sheet 23B at the suture portion 24.

Since the above-mentioned suture portion 24 is not a stitch that crosses in the width direction Y, the resistance when winding up the hair holder 1A along the longitudinal direction X can be suppressed low. Thereby, the cylindrical body 2 can be easily wound up. In addition, when the hair bundle H is inserted into the hair holder 1A using the insertion tool, the bending that may occur in the side edges 25 of the cylindrical body 2 can be suppressed, so the insertion and removal of the insertion tool can be performed without resistance. Can be done, and it is excellent in the workability of insertion work
Moreover, while being able to maintain the joint strength of the side edge part 25 of the 2 or more sheet which comprises the cylindrical body 2 with respect to taking in / out of an insertion tool, winding force can be exhibited effectively.

The straight stitched portion 24S in the stitched portion 24 according to the present embodiment has a plurality of seams 24a of the same length spaced along the longitudinal direction X on the surface of the other side sheet 23B. It is formed. In the straight seamed portion 24S in the seamed portion 24, a seam 24a appearing on the surface of the other side sheet 23B is parallel to the longitudinal direction X (see FIG. 1A). The hair holder 1A of the present embodiment has an extending portion 4 described later, and a sewn portion is formed on the extension of the stitching portion 24 in the extending portion 4. That is, the sewn portion may extend outward in the longitudinal direction X from the cylindrical body 2 in which two or more sheets overlap.
The straight stitched portion 24S in the stitched portion 24 can adopt any of a single ring stitching, a hand stitch, a lock stitch, and a double ring stitch according to JIS L 0120. As such a stitch form, for example, a half-turn stitch is mentioned as a double ring stitch. Further, the straight stitched portion 24S in the stitched portion 24 can be formed by a known method such as a sewing machine. In particular, a two-needle sewing machine can be preferably used for stitching the stitching portion 24 from the viewpoint that two straight stitching portions 24S can be easily formed. When the stitching portion 24 is formed by lock stitching using a sewing machine, for example, the seam 24a of the stitching portion 24 on the other side sheet 23B is formed of an upper thread, and the seam 34 of the stitching portion 24 on the one side sheet 23A is a lower thread It is formed. The lock stitch is a sewing method in which the upper thread and the lower thread parallel to each other are inserted into the needle holes formed intermittently and intersect each other. In the present embodiment, the stitches in the one-sided sheet 23A and the stitches in the other-sided sheet 23B are in the same direction in projection view from one side of the cylindrical body, and substantially overlap [see FIGS. ].

From the viewpoint of more reliably achieving the above-described effect of rolling up force and durability to repeated use, the dimensions of the suture portion 24 in the hair holder 1A are preferably in the following range.
The length L24 of the suture portion 24 in the longitudinal direction X is preferably 80% or more, more preferably 100% or more with respect to the length L2 of the longitudinal direction X of the cylindrical body 2 [see FIG. 1 (a)]. Also, it is preferably 120% or less, more preferably 110% or less, and preferably 80% or more and 120% or less, more preferably 100% or more and 110% or less. The length L24 of the seamed portion 24 is a length including an extended seamed portion 24c described later, and is the maximum length of a sewn portion including the extended seamed portion 24c in the longitudinal direction X.
The lengths L24a and L34 of the seams 24a and 34 appearing on the front surface sheet 23A and the other surface sheet 23B are respectively [see FIGS. 8A and 8B], and the length L24 of the suture portion 24 in the longitudinal direction X (see FIG. 1 (a)], preferably 0.01% or more, more preferably 0.1% or more, and preferably 5% or less, more preferably 2% or less, and preferably 0. It is at least 01% and at most 5%, more preferably at least 0.1% and at most 2%.
The seam pitches P24a and P34 at the stitched portions 24 of the one-sided sheet 23A and the other-sided sheet 23B are [see FIGS. 8A and 8B], and the lengths L24a and L34 of the seams 24a and 34 [FIG. And (b)], preferably 50% or more, more preferably 100% or more, preferably 300% or less, more preferably 200% or less, and preferably 50% to 300% or less. More preferably, they are 100% or more and 300% or less. The stitch pitches P24a and P34 in the straight stitched portion 24S are lengths from the end point of one stitch 24a or 34 to the end point of the next stitch 24a or 34. The suture portion 24 may have a plurality of seams 24a and 34 spaced apart from one another and may be formed without a gap.
In the seamed portion 24 of the present embodiment, a plurality of straight seamed portions 24S are formed at intervals D24 in the width direction Y, respectively. The distance D24 between the linear sewn portions 24S in the width direction Y, that is, the length of the arrangement area F1 in the width direction Y is preferably 1% or more, more preferably to the length W2 of the cylindrical body 2 in the width direction Y Is 3% or more, preferably 20% or less, more preferably 10% or less, and preferably 1% or more and 20% or less, more preferably 3% or more and 10% or less.

In the case where a straight stitched portion 24S composed of stitches 24a of different lengths and different pitches is formed by hand-sewing according to JIS L 0120 by the surface of the one-sided sheet 23A and the surface of the other-sided sheet 23B. It is preferable that the dimensions of the seams 24a and 34 appearing on the surface of the sheet 23A and the other side sheet 23B be in the above-mentioned range. However, the seam 24a in the stitching portion 24 of the other side sheet 23B is longer than the seam 34 in the stitching portion 24 of the one side sheet 23A.

The hair holder 1A of the present embodiment has a back-stitched portion 24b at the end on the opening 21 side of one end of the stitched portion 24 in the longitudinal direction X. Unless otherwise specified, in the present specification, the “return stitch” is a portion sewn for a few stitches in a direction substantially reverse to the sewing direction of the sewing of the sewing portion 24 and the like. According to such a configuration, the bonding strength of the one side sheet 23A and the other side sheet 23B can be maintained for a long time, and the durability to the above-described repeated use can be improved. In addition, it is possible to improve the joint strength at the sewing start point and the sewing end point at which the fraying is most likely to occur in the sewn part 24. As described above, the stitching portion 24 preferably has the reverse stitching portion 24 b at least at one end thereof, and has the reverse stitching portion 24 b at the end on the opening 21 side of one end of the stitching portion 24 in the longitudinal direction X Is more preferable. The hair holder 1A may have the reverse-stitched portion 24b at the end of the other end, on the side of the opening 22, and is present at both the side of the opening 21 on one end and the end of the opening 22 on the other end. You may
In the present embodiment, the back-stitched portion 24 b is generally formed to overlap with one end of the suture portion 24 in the longitudinal direction X, but may not overlap with the one end.

The reverse-stitched portion 24b may be a stitch for one stitch or a plurality of stitches. From the viewpoint of further improving the bonding strength of the two or more sheets constituting the above-mentioned cylindrical body 2, the length L24b of the back-stitched portion 24b is a seam having the same length L24a as the stitch 24a for one stitch in the stitching portion 24 Preferably, there are one or more needles, more preferably three or more needles. It is preferable that the stitch length and stitch pitch of one stitch of the reverse-stitched portion 24 b be in the same range as the stitches in the stitched portion 24 described above.
The barbed portion 24b is preferably formed so that a portion of the barbed portion 24b, more preferably all of the barbed portion 24b, overlaps the suture portion 24 in the sewing direction.

In the hair holder 1A of the present embodiment, the one-sided sheet 23A extends outward in the longitudinal direction X from the cylindrical body 2. Hereinafter, this portion is also referred to as the extending portion 4. Thus, in the hair holder 1A, a portion in which any one or more of the two or more sheets constituting the cylindrical body 2 extend from the longitudinal direction of the cylindrical body 2, that is, the two or more sheets Have a portion other than the overlapping portion. The hair holder 1A of the present embodiment has the extending portion 4 near the end of the opening 21 at one end of the cylindrical body 2, but the extending portion near the end of the opening 22 at the other end 4 may be provided, and the extending part 4 may be provided at the openings 21 and 22 at both ends.
The back-stitched portion 24 b of this embodiment extends on the extension of the stitched portion 24 in the extending portion 4. Thus, the sewn part formed on the extension of the sewn part 24 in the extending part 4 is also referred to as an extended sewn part 24c. The extension stitching portion 24 c may overlap at least a part of the extension of the stitching portion 24, more specifically, assuming that the stitching portion 24 is extended outward in the longitudinal direction X. The extension stitching portion 24 c may be a sewing portion or a reverse stitching portion which is formed to extend to the stitching portion 24 in the longitudinal direction X. The reverse-stitched portion formed as the extension-stitched portion 24 c is distinguished from the reverse-stitched portion of the stitched portion 24 in that two or more sheets constituting the cylindrical body 2 are not joined. From the viewpoint of improving the bonding strength between two or more sheets constituting the cylindrical body 2, the extension sewing portion 24c is preferably a reverse stitching portion. In the extension stitching portion 24c, a part of the extension stitching portion 24c may be a reverse stitching portion, and the entire extension stitching portion 24c may be a reverse stitching portion. For example, only the outward end in the longitudinal direction X of the extension seam 24c may be a reverse stitch. As shown in FIG. 2, in the extended sewing portion 24 c of the present embodiment, a part of the reverse stitching portion 24 b formed at the end on the opening 21 side of the one end of the stitching portion 24 in the longitudinal direction X is in the longitudinal direction X The first side sheet 23A and the second side sheet 23B are formed by extending to the extension portion 4 beyond the edge 27 of the overlapping portion, and the entire extension stitch portion 24c is a reverse stitch portion. Thus, the joint strength of the edge of the part which the sheet | seat of two or more sheets which comprises the cylindrical body 2 mutually overlaps in the longitudinal direction X can be improved more that the extension sewing part 24c is a reverse-stitching part. For example, in the present embodiment, it is possible to further improve the bonding strength of the edge of the portion where the one-sided sheet 23A and the other-sided sheet 23B overlap with each other. In particular, in a state in which the hair holder 1A is rolled up, at the edge 27 (see FIGS. 1 (a) and 2) of a portion where two or more sheets constituting the cylindrical body 2 on the opening 21 side at one end overlap each other. Since it is easy to concentrate the stress that releases the bonds between the sheets, the extension sewing portion 24 c is preferably a reverse stitching formed so as to overlap the edge 27 in the longitudinal direction X. That is, it is preferable that the extended stitch portion 24 c is formed by a reverse stitch portion that straddles the edge 27 and a seam that extends outward in the longitudinal direction X from the edge 27.
The extension sewing portion 24 c may be formed also on the extension portion 4 on the opening 22 side of the other end.
It is preferable that the extension stitched portion 24c has the same range as the length L24b of the above-mentioned reverse stitch portion 24b, the length of the stitch of one stitch of the reverse stitch portion 24b, and the pitch of the stitch.

Although the dimension etc. of the cylindrical body 2 can be suitably determined according to the length to which it wants to put on hair, the place to attach, and the quantity of the hair bundle to insert, it is preferable that it is the following range.
The length W2 (see FIG. 1 (b)) of the cylindrical body 2 in the width direction Y is preferably 25 mm or more, more preferably 30 mm or more, preferably 200 mm or less, more preferably 150 mm or less, Preferably they are 25 mm or more and 200 mm or less, More preferably, they are 30 mm or more and 150 mm or less.

The length L1 of the hair holder 1 in the longitudinal direction X (see FIG. 1 (a)) is preferably 50 mm or more, more preferably 100 mm or more, and preferably 400 mm or less, more preferably 350 mm or less. Preferably they are 50 mm or more and 400 mm or less, More preferably, they are 100 mm or more and 350 mm or less. The length L 1 of the hair holder 1 in the longitudinal direction X is the total length of the extending portion 4 in the longitudinal direction X and the cylindrical body 2.
The length L2 of the cylindrical body 2 in the longitudinal direction X is preferably 45 mm or more, more preferably 90 mm or more, preferably 300 mm or less, more preferably 275 mm or less, and preferably 45 mm to 300 mm or less Preferably it is 90 mm or more and 275 mm or less. In the cylindrical body 2 of the present embodiment, the end on the side of the opening 21 at one end is concavely curved inward in the longitudinal direction X. Thus, when the length of the cylindrical body 2 in the longitudinal direction X differs depending on the position in the width direction Y, it is preferable that the maximum length of the cylindrical body 2 in the longitudinal direction X is within the above-mentioned range.

The length W22 (see FIG. 1B) of the opening 22 at the other end in the width direction Y is preferably 40.0% or more, more preferably, to the length W2 of the cylindrical body 2 in the width direction Y Is 66.7% or more, preferably 97.5% or less, more preferably 96.7% or less, and preferably 40.0% to 97.5% or less, more preferably 66.7% The above is 96.7% or less.
The length W 22 (see FIG. 1B) of the opening 22 at the other end in the width direction Y is preferably 10 mm or more, more preferably 20 mm or more, and preferably 195 mm or less, more preferably 145 mm or less And preferably 10 mm or more and 195 mm or less, more preferably 20 mm or more and 145 mm or less.
In the present embodiment, the length W22 of the opening 22 at the other end in the width direction Y is the same as the length of the opening 21 at one end in the width direction Y. The length of the opening 22 at the other end and the length of the opening 21 at one end in the width direction Y may be the same or different.

The outer diameter D2 (see FIG. 2) of the cylindrical body 2 in a wound state is not particularly limited, and may be appropriately set according to the amount of hair bundle, the length of hair bundle, etc. From the viewpoint of properties, it is preferably 10 mm or more, more preferably 15 mm or more, preferably 60 mm or less, more preferably 50 mm or less, and preferably 10 mm to 60 mm, more preferably 15 mm to 50 mm. The outer diameter D2 of the cylindrical body 2 is the maximum length of a cross section in the radial direction orthogonal to the central axial direction of the cylindrical body 2 which has been rolled up and formed into a roll. The outer diameter D2 of the cylindrical body 2 is a length which does not include the extended part mentioned later.

From the viewpoint of making it difficult to produce distortion in the wound cylindrical body 2 and making the curled shape applied to the hair bundle clearer, the seam length L34 at the sutured portion 24 of the one-sided sheet 23A [FIG. 8 (b) Reference is preferably 3% or more, more preferably 4% or more, and preferably 15% or less, more preferably 13% or less with respect to the outer diameter D2 of the cylindrical body 2 (see FIG. 2). And preferably 3% or more and 15% or less, more preferably 4% or more and 13% or less.

From the same viewpoint as above, the seam pitch P24a [see FIG. 1 (a)] of the suture portion 24 is preferably 3% or more, more preferably to the outer diameter D2 of the tubular body 2 (see FIG. 2). Is 4% or more, preferably 15% or less, more preferably 13% or less, and preferably 3% or more and 15% or less, more preferably 4% or more and 13% or less.

The hair holder 1 may or may not have a slit in any one or more or all of the two or more sheets constituting the cylindrical body 2. The hair holder 1 in this embodiment has the laterally long slit 6 extended in the width direction Y in the other surface sheet 23B, as shown to Fig.1 (a). With such a configuration, the extensibility of the base sheet 23 constituting the hair holder 1 can be improved, and the cylindrical body 2 can be smoothly wound up. Thus, on the sheet on one side or the other side of the cylindrical body 2, a plurality of slits having a shape long in the width direction Y of the cylindrical body 2 are separated in the longitudinal direction of the cylindrical body 2. Are preferably formed in series, and it is more preferable that the plurality of slits be formed in both the sheet on one side and the sheet on the other side of the cylindrical body 2. Further, it is preferable that the plurality of slits be formed in series spaced apart in the longitudinal direction X of the cylindrical body 2. From the viewpoint of rolling up the cylindrical body 2 smoothly, it is preferable that a plurality of slits be formed in the longitudinal direction X so as to be separated from each other on the outer sheet 23B which is the outer side at the time of rolling up. In addition to the slits shown in FIG. 1A, for example, slits described in JP-A-2006-129972 can be provided.

Here, the slit extending in the width direction Y of the other surface sheet 23B means that the length of the slit in the longitudinal direction X of the cylindrical body 2 is less than 3 mm. Further, the length W6 of the slit 6 in the width direction Y [see FIG. 1A] is preferably 40.0% or more, more preferably 50 with respect to the length W2 of the cylindrical body 2 in the width direction Y. .0% or more, preferably 90.0% or less, more preferably 80.0% or less, and preferably 40.0% or more and 90.0% or less, more preferably 50.0% or more and 80 .0% or less.
The length W6 of the slit 6 in the width direction Y (see FIG. 1A) is preferably 10 mm or more, more preferably 15 mm or more, preferably 180 mm or less, more preferably 120 mm or less, and Preferably they are 10 mm or more and 180 mm or less, more preferably 15 mm or more and 120 mm or less.

As shown in FIG. 1 (b), a winding stopper 5 is provided on the opposite side to the other side sheet 23 </ b> B in the extended portion 4 of the present embodiment. The windup portion 5 is engageable with the other side sheet 23B, and maintains the windup state of the cylindrical body 2 by engaging the windup cylindrical body 2 with the windup portion 5. Various kinds of material can be used as the winding part 5 as long as it can be engaged with the other side sheet 23B, and in the present embodiment, a male member of a mechanical fastener is used.

The hair holder 1A does not have to have the clinching piece 8, but as shown in FIGS. 1 (a) and 1 (b), it is preferable to have the clinching piece 8. The hair holder 1 </ b> A has a winding fastening piece 8 extending outward in the width direction Y in the vicinity of the opening 22 side of the other end of each side edge 25 of the cylindrical body 2. The winding tightening pieces 8 extend in the width direction Y from the cylindrical body 2 and are integrally formed with the one-sided sheet 23A. When winding the tubular body 2 through which the hair bundle H is wound, the tubular body 2 can be rolled up easily and as required if the tubular body 2 is rolled up by holding the winding tightening pieces by hand. . As the winding fastening piece 8, for example, the one described in paragraph [0019] of JP-A-2006-129972 can be provided as the winding fastening piece 8. The forming method, the shape, the size, the thickness, the arrangement, and the like of the winding tightening piece 8 can be appropriately set.

The stitched portion 24 of the present embodiment is formed by sewing the side edges of the one-sided sheet 23A and the other-sided sheet 23B with sewing thread. There are a plurality of types of hair holders 1A for each winding diameter, but from the viewpoint of easily identifying the type of hair holders 1A by using different colors of sewing thread for each type of hair holders 1A, The color of the sewing thread to be formed is preferably different from the color of one of the two side edges of the two sheets 23A and 23B that constitute the outer surface of the cylindrical body 2, and forms a stitched portion of one or both sheets. More preferably, the color is different from the color of the portion (in the present embodiment, both side edges). Here, the two sheets that constitute the outer surface of the cylindrical body 2 are not limited to the sheet material that can constitute the cylindrical portion 26. For example, in the hair holder shown in FIG. 7A described later, the reinforcing material 3 is one of two sheets constituting the outer surface of the cylindrical body 2. The color of the sewing thread and the color of both side edges of the two sheets 23A and 23B that constitute the outer surface of the cylindrical body 2 are a combination of colors that allows an observer with ordinary alertness to distinguish between the two. That's fine. The color of the sewing thread and the color of one of the two side edges of the two sheets 23A and 23B constituting the outer surface of the cylindrical body 2 are the 24 color votes classified by the Ostwald color wheel. The hue number may be in a range shifted by one, but it is preferable that the two colors be in a range in which the hue numbers are shifted by three or more from the viewpoint of enhancing the discrimination.

The hair holder 1A can be used for a hot permanent which heats and performs a perm process. At the time of hot perming, the hair holder 1A is usually exposed to a high temperature of 100 ° C. or higher. From the viewpoint of enhancing the durability to repeated use of the hot permanent, it is preferable that the sewing thread forming the suture portion 24 have heat resistance. The term "heat resistance" as used herein means that when exposed for 20 minutes in an environment of 100 ° C. or higher, the component itself such as the resin constituting the sewing thread does not melt or is damaged and holes can not be formed. The heat resistance temperature of the sewing thread is preferably 100 ° C. or more, more preferably 160 ° C. or more, preferably 600 ° C. or less, more preferably 300 ° C. or less, and preferably 100 ° C. or more and 600 ° C. or less, more preferably Is 160 ° C. or more and 300 ° C. or less. The heat resistant temperature is a temperature at which a component itself such as a resin constituting a sewing thread may melt or may be damaged and a hole or the like may occur when exposed to a predetermined temperature for 20 minutes.

From the viewpoint of improving the heat resistance, the melting point of the sewing thread is preferably 100 ° C. or more, more preferably 140 ° C. or more, and still more preferably 200 ° C. or more. The melting point can be measured by a DSC method using PerkinElmer, product number Diamond DSC.
From the same viewpoint as above, the softening point of the sewing thread is preferably 100 ° C. or more, more preferably 120 ° C. or more, and still more preferably 180 ° C. or more. The softening point can be measured according to the method described in ASTM D1525.
Examples of the material of the sewing thread having the above heat resistance temperature, melting point and softening point include synthetic resin fibers such as polyester, nylon, polyethylene and polypropylene, and natural fibers such as silk, cotton, wool and hemp. Be

Although the hair holder 1A is used together with a hair treatment agent such as perm solution, the strength of the sewing thread may decrease due to the influence of the acid contained in the hair treatment agent. From the viewpoint of enhancing the durability to the acid that may be contained in the hair treatment agent, the sewing thread is preferably an acid resistant material. The acid resistance as used herein is a material in which the strength of the sewing thread does not decrease even under concentrated hydrochloric acid (20% concentration).
The sewing thread has a strength of preferably not less than 0.8 cN / dtex, more preferably not less than 2.4 cN / dtex, when immersed in concentrated hydrochloric acid (concentration 20%) for 60 minutes. The strength of the sewing thread can be measured by a tensile strength test method (JIS L 1013) using model YS-200 manufactured by Daiei Kagaku Seiki Mfg. Co., Ltd.

The hair holder 1A is supplied with the hair treatment agent from the outer surface of the other surface sheet 23B in a state where the hair bundle is held in the cylindrical body 2. In addition, the hair holder 1A may be used for a hair bundle that has been wetted by water or the like. From the viewpoint of easily drying the sewing yarn after the sewing yarn absorbs the hair treatment agent, water and the like, the sewing yarn is preferably a material having a low water absorbability. With such a configuration, it is possible to keep the hair holder more clean by suppressing the growth of bacteria in a wet environment. Materials having low water absorbability include, for example, polyolefins such as polyethylene and polypropylene; polyesters such as polyethylene terephthalate; polyamides such as nylon 6 and nylon 66; polyacrylic acid, polymethacrylic acid alkyl ester, polyvinyl chloride, polyvinylidene chloride and the like The synthetic resin (thermoplastic resin) fiber of is mentioned, and these 1 type can be used individually or in combination of 2 or more types.

Next, a hair holder 1B according to a second embodiment of the present invention will be described. The description of the hair holder 1A of the first embodiment described above applies as appropriate to the hair holder of the second embodiment, as long as no contradiction arises. The hair holder 1A according to the first embodiment includes the configuration (1), but instead, the hair holder according to the second embodiment includes the reinforcing member 3 and the tubular body 2 made of non-woven fabric. Have.

The hair holder according to the second embodiment includes two or more sheets extending between a pair of sutures 24 and 24 and a reinforcing material 3 disposed on each of the pair of sutures 24. That is, in the second embodiment, the two or more sheets constituting the cylindrical body 2 include the sheet constituting the cylindrical portion 26 and the reinforcing material disposed in each of the pair of suture portions 24, 24. ing. The reinforcing material 3 is a sheet disposed for the purpose of enhancing the rigidity of the cylindrical body 2 and improving the winding force of the cylindrical body 2. The length in the width direction Y of the reinforcing material 3 may be a length that does not extend between the pair of suture portions 24. The reinforcing material 3 is disposed so as to overlap with the suture portion 24, but is preferably disposed along the longitudinal direction X at the side edge portions 25 of the cylindrical body 2. With such a configuration, since the hair bundle spreads uniformly in the cylindrical portion 26, the hair bundle is easily tensioned when winding the hair holder, and the winding power can be improved.

The hair holder which has the said reinforcing material 3 is shown to Fig.7 (a) and (b). The hair holder shown in FIG. 7A has the reinforcing material 3 disposed on the outer surface of either one of the two sheet materials 23A and 23B constituting the cylindrical portion 26. From the viewpoint of further improving the winding force, the reinforcing material 3 is preferably disposed on the outer surface of the opposite surface sheet 23B. The outer surface of the other side sheet 23B is the side opposite to the side facing the one side sheet 23A, and the side opposite to the side forming the space into which the hair bundle is inserted. The hair holder shown in FIG. 7 (b) has the reinforcing material 3 disposed between the two sheet materials 23 </ b> A and 23 </ b> B which constitute the cylindrical portion 26. As described above, the sheets constituting the cylindrical body 2 are firmly joined, but for convenience of explanation, between the sheets constituting the cylindrical body 2 in FIGS. 7 (a) and (b) Are drawn as if there is a gap. The reinforcing material 3 is integrated with the sheets 23A and 23B which constitute the cylindrical portion 26 by the stitching portion 24.

In the second embodiment, the sheet forming the cylindrical portion 26 is a non-woven fabric, and the reinforcing material 3 is a resin film. As the non-woven fabric, the above-mentioned polyethylene non-woven fabric, polyethylene terephthalate non-woven fabric and the like can be used. Further, a part or all of the sheets constituting the cylindrical portion 26 are formed of a shape memory sheet.
Examples of the reinforcing material 3 include polyolefin films and polyester films. The reinforcing material 3 may be a porous sheet or a non-porous sheet.

The hair holder according to the second embodiment includes the reinforcing member 3 that is higher in rigidity than the tubular body 2 made of non-woven fabric, so that the hair holder does not easily buckle during winding and can be used more than once. It can be maintained stably. In addition, since the reinforcing material 3 made of a resin film does not easily expand the needle holes of the thread in the stitching portion 24, the thread is not easily frayed, and stitching as designed is possible, and the productivity and durability of the hair holder are excellent. On the other hand, when the reinforcing material 3 made of a resin film and the tubular body 2 made of a non-woven fabric are integrated by heat sealing, the reinforcing material and the tubular body may be difficult to fuse together. In addition, when the rigidity of the cylindrical body 2 is enhanced by the reinforcing material 3, tension is easily applied to the hair bundle at the time of winding the hair holder, and the winding power can be improved. In particular, when the reinforcing material 3 is disposed on the outer surface of the other surface sheet 23B [see FIG. 7 (a)], when the hair bundle is inserted into the cylindrical body 2, the thickness of the reinforcing material 3 is the thickness of the hair bundle To reduce the thickness of the cylindrical portion 26. This makes it difficult for the hair bundle inserted in the cylindrical body 2 to come off, and the difference in winding diameter between the outermost periphery and the innermost periphery in the hair holder in a wound state can be reduced, and the hair bundle has a beautiful curled shape. It can be applied to

The reinforcing material 3 is preferably made of a polyester film, and more preferably made of a polyethylene terephthalate film, from the viewpoint of ensuring one or more of the effects described above to be more reliably exhibited. Further, from the same viewpoint as above, the reinforcing material 3 preferably has a thickness of 0.10 mm or more, more preferably 0.15 mm or more, and preferably 0.40 mm or less, more preferably 0.30 mm or less Moreover, Preferably they are 0.10 mm or more and 0.40 mm or less, More preferably, they are 0.15 mm or more and 0.30 mm or less.

From the viewpoint of further improving the winding force, the lengths D24 and W24 ′ of the arrangement area F1 in the width direction Y are preferably with respect to the length W3 of the reinforcing material 3 in the width direction Y (see FIG. 7A). Is 30% or more, more preferably 45% or more, preferably 95% or less, more preferably 85% or less, and preferably 30% or more and 95% or less, more preferably 45% or more and 85% or less is there.

From the viewpoint of strengthening the bonding between the reinforcing member 3 and the cylindrical body 2, the seam lengths L 24 a and L 34 (see FIGS. 8A and 8B) of the stitching portion 24 are reinforcing members in the width direction Y Preferably, it is 2% or more, more preferably 5% or more, and preferably 100% or less, more preferably 50% or less, with respect to the length W3 of 3 [see FIG. 7 (a)]. Is 2% or more and 100% or less, more preferably 5% or more and 50% or less.
From the same viewpoint as above, the seam pitches P24a and Pb of the seamed portion 24 are preferably 2% or more, more preferably, to the length W3 of the reinforcing member 3 in the width direction Y (see FIG. 7A). Is 5% or more, preferably 100% or less, more preferably 50% or less, and preferably 2% or more and 100% or less, more preferably 5% or more and 50% or less.

In the hair holder according to the second embodiment, the stitching portion 24 formed in the arrangement area may be the plurality of straight stitching portions described above, or may be a bending stitching portion described later.

FIG. 3 is a view showing a hair holder 1B according to a third embodiment of the present invention. As long as there is no contradiction about the hair holder 1B of 3rd Embodiment, description of the hair holder of 1st and 2nd embodiment mentioned above is applied suitably. Specifically, the configuration of the hair holder of the first and second embodiments can be appropriately adopted except for the configuration of the arrangement area of the suture portion described later. In FIG. 3, the same components as those of the hair holder 1A of the first embodiment are denoted by the same reference numerals as those of the hair holder 1A of the first embodiment.

The hair holder 1 </ b> B of the third embodiment has a pair of sutures 24 at the side edges 25 thereof. The pair of stitched portions 24 'in the present embodiment includes an array area F2 including a bent seamed portion 24T in which stitches 24e and 24f forming a zigzag extending in the longitudinal direction X are arrayed. The bent seam portion 24T includes two types of stitches 24e and 24f extending in two directions intersecting the longitudinal direction X, respectively. The two types of stitches 24 e and 24 f are alternately arranged in the longitudinal direction X, and form a zigzag extending in the longitudinal direction X. In the arrangement area F2, these two types of stitches 24e and 24f are arranged along the longitudinal direction X so as to have a width in the width direction Y. As described above, the pair of suture portions 24 'and 24' each includes, as the arrangement area F2, an area including the bending sewn parts 24T in which the stitches 24e and 24f in the sewing direction different from the direction along the longitudinal direction X are arranged. ing.
The hair holder 1B provided with the arrangement area F2 in which the sutured portion 24 'includes the bent seamed portion 24T has the configuration (1) of the first embodiment described above, and is similar to the effect of the first embodiment described above. The effect of That is, since the hair holder 1B is excellent in bonding strength between two or more sheets constituting the cylindrical body 2, it has excellent durability against repeated use, and the entire side edges of these sheets are in close contact with each other. Since it has a play in part and it is hard to produce distortion in cylindrical object 2 at the time of winding, it excels in winding up power. In addition, the hair holder 1B is easy to roll up and is excellent in workability.

From the viewpoint of improving the bonding strength between the sheets 23A and 23B constituting the cylindrical body 2, the length W24 'of the arrangement area F2 of the suture portion 24' in the width direction Y (see FIG. 3) is in the width direction Y The length W2 of the cylindrical body 2 is preferably 1% or more, more preferably 3% or more, and preferably 20% or less, more preferably 10% or less, and preferably 1% to 20%. % Or less, more preferably 3% or more and 10% or less.
The length W24 'of the arrangement area F2 of the suture portion 24' in the width direction Y (see FIG. 3) is the maximum length in the width direction Y of the stitches forming the stitches 24e and 24f in the arrangement area F2.

The bent stitch portion 24T in the stitch portion 24 'is a loop formed by the stitches 24e and 24f, that is, a sewing thread repeatedly passing through two or more sheets constituting the cylindrical body 2, and the outer surface of the cylindrical portion 26. The loop exposed on the surface of the two sheets 23A and 23B constituting the sheet is not particularly limited as long as it is a stitch type capable of forming a bending stitch pattern. For example, the suture portion 24 'can be formed in any of a single ring stitch, a hand stitch, a lock stitch, a double ring stitch, a blind stitch, and a flat stitch.

The bent seams 24T may have seams in the sewing direction different from the direction along the longitudinal direction X, and the lengths of the seams constituting the bent seams 24T and the intervals between the seams may be different from each other. Good.
In addition to the zigzag stitching shown in FIG. 3, for example, a blind stitch [see FIGS. 4 (a) to 4 (c)] and a corner stitch [see FIGS. 4 (d) to (g)] And patterns such as decorative sewing [see FIGS. 4 (h) to (t)]. 4 (a) to (g), (k), (l), (m), (n) (o), (p), (r) and (s), the sewing direction is the longitudinal direction X It is a pattern which has a portion which inclines to. FIGS. 4 (h), 4 (j), 4 (r), 4 (s) and 4 (t) are patterns each having a portion in which the sewing direction is parallel to the width direction Y. FIGS. 4 (i), (n) and (q) are sewing patterns having curved portions. FIGS. 4 (c), (k), (l), (m), (n), (o), (p) and (r) are patterns having portions where stitches cross each other. From the viewpoint of maintaining the winding diameter after the hair holder has been wound up once, the bending sewing portion 24T is a seam whose stitching direction is inclined to the longitudinal direction X, a seam whose stitching direction is parallel to the width direction Y, or these It is preferred to have a combination of seams. With such a bent stitch portion 24T, since the hair holder exhibits resistance to a restoring force that tries to return to the original shape, that is, the shape before being wound up after being wound up, it is easy to maintain the winding diameter, and winding up. The hair holder after it is hard to collapse.
The bending sewing part 24T may be formed by one pattern, such as a zigzag sewing or a eyelet sewing, or may be formed by combining a plurality of patterns. Such a bent and sewn portion 24T can be formed by a known method such as a sewing machine.

In the bending sewn portion 24T, a part or all of the stitches constituting the bending sewn portion 24T are inclined with respect to the longitudinal direction X of the cylindrical body 2. The lengths L24e and L24f of the stitches 24e and 24f of the bending stitch portion 24T are line segments formed by sewing for one stitch, that is, lengths of line segments formed by sewing threads connecting two needle holes. [Refer to FIG. 9 (a) and (b)].
From the viewpoint of improving the winding force, the length of the seam in the seamed portion 24 of the front side sheet 23B is preferably 101% or more of the length of the seam in the seamed portion 24 of the front side sheet 23A. More preferably, it is 105% or more, preferably 135% or less, more preferably 125% or less, and preferably 101% or more and 135% or less, more preferably 105% or more and 125% or less.
From the same viewpoint as described above, the length of the seam in the stitched portion 24 of the other side sheet 23B is preferably 1.5 mm or more, more preferably 2.0 mm or more, and preferably 5. It is 5 mm or less, more preferably 3.5 mm or less, preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
From the same viewpoint as above, the length of the seam in the seamed portion 24 of the one side sheet 23A is preferably 1.5 mm or more, more preferably, provided that it is shorter than the length of the seam in the seamed portion 24 of the other side sheet 23B. Is preferably 2.0 mm or more, preferably 5.5 mm or less, more preferably 3.5 mm or less, and preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less is there.
The seam length is measured by the method described above.

A plurality of stitches are repeatedly arranged in a predetermined pattern Pr in the bending sewn portion 24T (see FIGS. 9A and 9B). The length of the predetermined pattern Pr in the longitudinal direction X of the cylindrical body 2 is taken as the stitch pitch Pb of the bent stitch portion 24T. The stitch pitch Pb of the stitched portion 24T is the length in the longitudinal direction X from the needle hole at the start point to the needle hole at the end point in a predetermined pattern Pr (see FIGS. 9A and 9B). .
From the viewpoint of exerting the above-described effect of winding up force and durability against repeated use more reliably, the seam pitch Pb of the bent seam portion 24T [see FIGS. 9A and 9B], the length L24e of the seam 24a, The amount of L 24 f is preferably 50% or more, more preferably 100% or more, preferably 500% or less, more preferably 300% or less, and preferably 50% to 500% or less, more preferably 100%. % Or more and 300% or less. A plurality of stitches 24e and 24f may be formed at intervals or may be formed without intervals in the bending stitch portion 24T.

From the same viewpoint as above, the dimension of the suture portion 24 in the hair holder 1B is preferably in the same range as the dimension of the suture portion 24 in the hair holder 1A of the first embodiment.

The hair holder 1B provided with the arrangement | sequence area | region F2 provided with the bending sewing part 24T may have a back-stitching part and an extension sewing part like 1st Embodiment. As in the present embodiment, when the sutured portion 24 'is formed in the sewing direction from the side of the opening 21 on one end toward the side of the opening 22 on the other end, the reverse sewing portion substantially reverses the sewing direction. Or, it is a part sewn for several stitches in a direction different from the sewing direction. For example, the sewing direction of the reverse-stitched portion of the hair holder 1B having a bending-sewing pattern is a direction reverse to the direction from the start to the end of the bending-sewing pattern or a direction different from the direction from the start to the end Also good.

The hair holder of the present invention is not limited to the first to third embodiments described above, and can be modified as appropriate without departing from the spirit of the present invention.
For example, the hair holder 1 may have a portion in which the length in the width direction Y is partially different, as long as the effects of the present invention are not impaired. In addition, the straight stitch portion of the first embodiment described above and the bent stitch portion of the third embodiment described above may be formed in a mixed manner in the longitudinal direction X in the stitched portion.
In addition, the hair holders of the first and third embodiments described above may each have the reinforcing member 3 in the suture portion 24, and the hair holder of the second embodiment described above has the configuration (1). You may possess.
The reinforcing material 3 in the second embodiment is a resin film, but the reinforcing material 3 is, for example, non-woven fabric (polyethylene non-woven fabric, polyethylene terephthalate non-woven fabric, etc.), woven fabric, net-like sheet, porous or non-porous resin film ( It may be a sheet-like material such as polyethylene film, polyethylene terephthalate film, etc., paper, a polymeric material sheet, a rubber sheet, or a composite of two or more of these.
Moreover, the shape of the sheet material which comprises "the cylindrical body 2" in the hair holder 1 of this invention, and the surface state should just be a thing which can form the cylindrical body of the above-mentioned form, and the surface of a sheet material The surface may be an uneven surface.

Moreover, although the hair holder of this invention can be used for the permanent treatment which curls a hair using a hair treatment agent, it can also be used for the treatment which curls a hair without using a hair treatment agent. . For example, after winding a hair bundle, heat treatment is performed with a dryer or the like without using a hair treatment agent, dried hair is held in a wound state, or wet hair is held in a wound state. It can be applied to the case where the hair is curled by drying.

The hair holder of the present invention can be used together with a long hair inserter for inserting the hair bundle H into the tubular body 2. From the viewpoint of facilitating the insertion operation of the hair bundle H, the hair insertion tool is preferably provided with a hook portion capable of hooking the hair bundle H. As a hair inserter, one described in JP-A-2008-61959 can also be used.

Next, a hair treatment method for directly curling hair (hair) using the hair holder 1A of the first embodiment will be described with reference to FIG. In the hair treatment method using the hair holder 1A, the cylindrical body 2 is rolled up together with the hair bundle H inserted through the cylindrical body 2. The hair holder can adjust the winding diameter of the hair bundle H depending on the degree of winding at the time of winding.

First, according to the amount of the hair bundle H and the curl shape to be obtained, the hair holder 1A comprising the cylindrical body 2 having an appropriate length and width is stretched as shown in FIG. 5 (a). The hair bundle H is inserted into the opening 21 at one end of the cylindrical body 2. At this time, the opening 21 at one end of the hair holder 1A may be opened in an elliptical shape, but if necessary, the hair bundle H can be smoothly inserted if the opening 21 is opened in a perfect circle. easy. Moreover, it is preferable to perform the penetration operation | work of the hair bundle H using the hair insertion tool mentioned above from a viewpoint of performing the penetration operation | work of the hair bundle H smoothly. Further, as shown in FIG. 5A, the tip of the hair bundle H may be protruded from the opening 22 at the other end of the cylindrical body 2.

After the hair bundle H is inserted into the cylindrical body 2, as shown in FIGS. 5B and 5C, with the cylindrical body 2 facing the opening 22 at the other end, the one-sided sheet 23A is turned inward. Roll up.

Next, a hair treatment agent for permanent is applied to the hair bundle H wound up by the hair holder 1A. The hair treatment agent is applied to the hair bundle H from the outside of the cylindrical body 2. Then, after a predetermined time, the hair bundle H is removed from the cylindrical body 2, and the hair is washed, etc. to complete the perm treatment. In the case of a two-agent type permanent hair treatment agent, the first agent is applied to the hair bundle H wound up with the hair holder 1A from the outside of the cylindrical body 2, and then the hair bundle H is removed before removing the hair bundle H. Apply the second agent to Then, after a predetermined time, the hair bundle H can be removed from the cylindrical body 2 and hair washing or the like can be performed to complete the perm treatment.

The hair treating method described above can treat a hair bundle in the same manner as described above even if the hair holder of the second embodiment and the hair holder 1B of the third embodiment are used.

In the method of manufacturing the hair holder according to the first to third embodiments described above, the two sides of the one side sheet 23A and the other side sheet 23B are opposed to each other, and the side portions along the longitudinal direction of the one side sheet 23A The sides along the longitudinal direction of the face sheet 23B are joined together by stitching. The stitching is performed so that the seams are arranged with a width along the longitudinal direction of both sheets 23A, 23B. The cylindrical body 2 which has a pair of stitching | suture parts 24 and 24 by this is formed. Further, the reinforcing material may be joined by stitching together with the one-sided sheet 23A and the other-sided sheet 23B. Thus, by joining two or more sheets by stitching, a hair holder provided with the cylindrical body 2 which can penetrate a hair bundle along the longitudinal direction X between the two or more sheets. It can be manufactured.

The scope of the present invention is not limited to the above embodiments.
For example, hair treatment agents include hair dyes, decolorizing agents, styling agents, water and the like in addition to perming agents.

The present invention further discloses the following hair holder.
<1>
A hair holder having a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body having a longitudinal direction and a width direction orthogonal to the longitudinal direction. There,
The tubular body has a pair of sutured portions in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutured portions is inserted.
The pair of suture portions each extend along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. ,
The two or more sheets include the sheet constituting the cylindrical portion, and some or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet,
The hair holder wherein the sheet positioned on the outside when the tubular body is rolled up has a longer seam length in the stitching portion as compared to the sheet positioned on the inside.

<2>
When the cylindrical body is wound up, when the sheet positioned on the inner side is a one-sided sheet and the sheet positioned on the outer side is another sheet,
The length L24a of the seam in the sewn portion of the other side sheet is 101% or more, preferably 105% or more, preferably 135% or less, with respect to the length L34 of the seam in the sewn portion of the one side sheet. The hair holder according to <1>, which is preferably 125% or less, and is 101% or more and 135% or less, preferably 105% or more and 125% or less.
<3>
The seam length L24a at the sutured portion of the other surface sheet is 1.5 mm or more, preferably 2.0 mm or more, and 5.5 mm or less, preferably 3.5 mm or less, and 1.5 mm or more The hair holder according to <2>, having a diameter of 5.5 mm or less, preferably 2.0 mm or more and 3.5 mm or less.
<4>
The seam length L34 at the sutured portion of the one-sided sheet is 1.5 mm or more, preferably 2.0 mm or more, 5.5 mm or less, preferably 3.5 mm or less, and 1.5 mm or more. The hair holder according to <2> or <3>, which has a diameter of 0.5 mm or less, preferably 2.0 mm or more and 3.5 mm or less.
<5>
The sheet according to any one of <1> to <4>, including the two or more sheet materials extending between the pair of suture parts, and a reinforcing material disposed in each of the pair of suture parts. Hair holder.
<6>
The reinforcing material may be a non-woven fabric, a woven fabric, a net-like sheet, a porous resin film, a non-porous resin film, a sheet of paper, a polymer material sheet, a rubber sheet, and a composite of two or more of them. At least one selected from the group
The non-woven fabric is a polyethylene non-woven fabric or a polyethylene terephthalate non-woven fabric,
The hair holder according to <5>, wherein the porous resin film or the non-porous resin film is a polyethylene film or a polyethylene terephthalate film.
<7>
The forming material of each of the two or more sheets is a non-woven fabric, a woven fabric, a net-like sheet, a porous resin film, a non-porous resin film, paper, a polymer material sheet, a rubber sheet, and a composite of two or more of them. At least one member selected from the group consisting of the body,
The non-woven fabric is a polyethylene non-woven fabric or a polyethylene terephthalate non-woven fabric,
The hair holder according to any one of <1> to <6>, wherein the porous resin film or the nonporous resin film is a polyethylene film or a polyethylene terephthalate film.

<8>
A hair holder having a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body having a longitudinal direction and a width direction orthogonal to the longitudinal direction. There,
The tubular body has a pair of sutured portions in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutured portions is inserted.
The pair of suture portions each extend along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. ,
The two or more sheets include a sheet constituting the cylindrical portion and a reinforcing material disposed in each of the pair of suture portions, and the sheet constituting the cylindrical portion is a non-woven fabric The reinforcing material is a resin film,
A hair holder, wherein some or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet.
<9>
The hair holder according to <8>, wherein the reinforcing material is a polyester film.
<10>
The reinforcing material has a thickness of 0.10 mm or more, preferably 0.12 mm or more, and 0.35 mm or less, preferably 0.30 mm or less, or 0.10 mm or more and 0.35 mm or less, preferably 0. The hair holder as described in said <8> or <9> which is 12 mm or more and 0.30 mm or less.
<11>
The hair holder according to any one of <8> to <10>, wherein the reinforcing material is a polyethylene terephthalate film and has a thickness of 0.19 mm.
<12>
The hair holder according to any one of <8> to <11>, wherein the reinforcing material is disposed on the outer surface of the sheet positioned outside at the time of winding up.

<13>
The hair holding device according to any one of <1> to <12>, wherein each of the pair of suture portions includes a region including a plurality of linear stitches in which stitches are linearly arranged as the arrangement region. Equipment.
<14>
The pair of sutures are formed on both side edges of the two or more sheets and are parallel to each other,
The hair holder according to <13>, wherein the straight stitches are formed in two rows in the width direction of the cylindrical body.
<15>
In the straight stitching portion in the pair of stitching portions, the seam appearing on one of the surfaces of two sheets constituting the outer surface of the tubular portion is parallel to the longitudinal direction of the tubular body. The hair holder as described in <13> or <14>.
<16>
In the straight stitch portion, a plurality of stitches having the same length are provided on the surface of one of the two sheets constituting the outer surface of the cylindrical portion at the same interval, and the longitudinal direction of the cylindrical body is the same. The hair holder according to any one of <13> to <15>, which is formed by being disposed along the above.
<17>
The hair holder according to any one of <13> to <16>, wherein the pair of stitched portions are formed by aligning two or more straight stitched portions in the arrangement area.
<18>
The length L24 of the suture portion in the longitudinal direction is 80% or more, preferably 100% or more, and 120% or less, preferably 110%, with respect to the length L2 in the longitudinal direction of the cylindrical body. The hair holder according to any one of <13> to <17>, which is 80% to 120%, preferably 100% to 110%.
<19>
The seam length L24a appearing on any one of the two sheets constituting the outer surface of the cylindrical portion is preferably 0.01% or more with respect to the suture length L24 in the longitudinal direction, Is 0.1% or more and 5% or less, preferably 2% or less, and is 0.01% or more and 5% or less, preferably 0.1% or more and 2% or less. The hair holder as described in any one of <18>.
<20>
In the seam portion, a seam pitch P24a which is a length from the end point of one seam to the end point of the next seam is 50% or more, preferably 100% or more with respect to the seam length L24a. The hair according to any one of <13> to <19>, wherein the hair is 300% or less, preferably 200% or less, and 50% to 300%, preferably 100% to 300%. Holder.

<21>
Each of the pair of suture portions includes, as the arrangement region, a region including a bending sewn portion in which stitches in the sewing direction different from the direction along the longitudinal direction of the tubular body are arranged; The hair holder as described in any one of <12>.
<22>
The hair holding device according to <21>, wherein the bent and sewn portion has a seam in which the sewing direction is inclined with respect to the longitudinal direction, a seam in which the sewing direction is parallel to the width direction, or a combination of these seams. Equipment.
<23>
The length of the arrangement region in the width direction of the cylindrical body is 1% or more, preferably 3% or more, and preferably 20% or less, preferably, with respect to the length in the width direction of the cylindrical body. The hair holder according to any one of <1> to <22>, which is 10% or less and 1% to 20%, preferably 3% to 10%.
<24>
The length of the arrangement area in the width direction of the cylindrical body is 3% or more and 10% or less of the length in the width direction of the cylindrical body, in any one of the above <1> to <23> The hair holder according to 1 or 2.
<25>
The hair holder according to any one of <1> to <24>, in which the tubular body is formed by integrating the two side edges of the two or more sheets by the pair of suture portions.
<26>
The hair holder according to any one of <1> to <25>, wherein the two or more sheets are bonded to each other at the suture portion and are not bonded to each other at portions other than the suture portion.
<27>
The hair holder according to any one of <1> to <26>, wherein the suture portion has a reverse-stitch portion on at least one end side in the longitudinal direction of the suture portion.
<28>
The suture portion according to any one of <1> to <27>, wherein the suture portion has a reverse-sewing portion at an end on the opening side of the one end of the suture portion in the longitudinal direction of the cylindrical body. Hair holder.
<29>
The length L24b of the reverse-stitched portion is one stitch or more, preferably three stitches or more, according to the seam having the same length as the stitch of one stitch in the suture portion according to <27> or <28> Hair holder.
<30>
Any one of the above <27> to <29>, wherein the reverse-stitched portion is formed such that a part of the reverse-stitched portion, preferably all of the reverse-stitched portion overlaps the sutured portion in the sewing direction. Hair holder as described in.
<31>
In the vicinity of the end of the opening at the one end of the cylindrical body, an extended portion in which at least one of the two or more sheets extends in the longitudinal direction of the cylindrical body The hair holder according to any one of <1> to <30>.

<32>
Any one or more of the two or more sheets have an extending portion extending from the longitudinal direction of the cylindrical body, and an extension stitching portion is formed on an extension of the stitching portion in the extending portion. The hair holder according to any one of the above <1> to <31>, wherein all or a part of the extended stitching portion is a reverse stitching portion.
<33>
The hair holder according to <32>, wherein the extension sewing portion is the reverse stitching portion formed so as to overlap the edge of the overlapping portion of the two or more sheets in the longitudinal direction of the cylindrical body 2.
<34>
Any of the above <1> to <33>, wherein the color of the sewing thread forming the stitching part is different from the color of one of the two side edges of the two sheets constituting the outer surface of the cylindrical body The hair holder according to 1 or 2.
<35>
A color chart of 24 colors in which the color of the sewing thread and the color of one of the side edges of one of the two sheets constituting the outer surface of the cylindrical body are classified according to the Ostwald hue circle, The hair holder according to <34>, wherein the hue number is in a range shifted by one, preferably by 3 or more.
<36>
The hair holder according to any one of <1> to <35>, wherein the sewing thread forming the sutured part has a heat resistant temperature of 100 ° C. or more and 600 ° C. or less.
<37>
The heat resistant temperature of the sewing thread forming the suture portion is 100 ° C. or more, preferably 160 ° C. or more, 600 ° C. or less, preferably 300 ° C. or less, and 100 ° C. or more and 600 ° C. or less, preferably 160 ° C. The hair holder according to any one of the above <1> to <36>, which is 300 ° C. or less.
<38>
The melting point of the sewing thread forming the suture portion is 100 ° C. or higher, preferably 140 ° C. or higher, more preferably 200 ° C. or higher,
The hair holder according to any one of <1> to <37>, wherein the softening point of the sewing yarn is 100 ° C. or more, preferably 120 ° C. or more, more preferably 180 ° C. or more.
<39>
The sewing thread forming the sutured part has a tensile strength of at least 0.8 cN / dtex, preferably at least 2.4 cN / dtex, when immersed in hydrochloric acid having a concentration of 20% for 60 minutes. The hair holder as described in any one of <38>.

<40>
The thickness of each of the two or more sheets is 5 μm or more, preferably 10 μm or more, and 2000 μm or less, preferably 1500 μm or less, and 5 μm or more and 2000 μm or less, preferably 10 μm or more and 1500 μm or less. The hair holder according to any one of> to <39>.
<41>
The hair holder according to any one of <1> to <40>, wherein the shape memory sheet is formed by laminating films having different thermal contraction rates or films having different tensions.
<42>
The tubular body returns to the stored original roll shape by heating the two or more sheets constituting the tubular body, any one of the <1> to <41> Hair holder as described.
<43>
Any one or more or all of the two or more sheets are subjected to processing for improving the diffusion of the hair treatment agent, and the processing is embossing, calendering, or resin film forming. The hair holder according to any one of the above <1> to <42>.
<44>
The length W2 of the cylindrical body in the width direction is 25 mm or more, preferably 30 mm or more, 200 mm or less, preferably 150 mm or less, and 25 mm or more and 200 mm or less, preferably 30 mm or more and 150 mm or less. The hair holder according to any one of <1> to <43>.
<45>
The length L1 in the longitudinal direction of the hair holder is 50 mm or more, preferably 100 mm or more, 400 mm or less, preferably 350 mm or less, and 50 mm to 400 mm, preferably 100 mm to 350 mm. The hair holder according to any one of <1> to <44>.
<46>
The length L2 of the cylindrical body in the longitudinal direction is 45 mm or more, preferably 90 mm or more, 300 mm or less, preferably 275 mm or less, and 45 mm or more and 300 mm or less, preferably 90 mm or more and 275 mm or less. The hair holder according to any one of <1> to <45>.
<47>
The length W22 of the opening at the other end in the width direction is 40.0% or more, preferably 66.7% or more, with respect to the length W2 of the cylindrical body in the width direction, and 97 .5% or less, preferably 96.7% or less, and 40.0% or more and 97.5% or less, preferably 66.7% or more and 96.7% or less. <1> to <46> The hair holder according to any one of the above.

<48>
The length W22 of the opening at the other end in the width direction is 10 mm or more, preferably 20 mm or more, 195 mm or less, preferably 145 mm or less, and 10 mm or more and 195 mm or less, preferably 20 mm or more and 145 mm or less The hair holder according to any one of the above <1> to <47>.
<49>
The hair holder has a laterally long slit extending in the width direction on any one or more or all of the two or more sheets.
The length W6 of the slit in the width direction is 40.0% or more, preferably 50.0% or more, and 90.0% or less with respect to the length W2 of the cylindrical body in the width direction. , Preferably 80.0% or less, and 40.0% or more and 90.0% or less, preferably 50.0% or more and 80.0% or less, any one of the above <1> to <48> Hair holder as described in.
<50>
The hair holder has a laterally long slit extending in the width direction on any one or more or all of the two or more sheets.
The length W6 of the slit in the width direction is 10 mm or more, preferably 15 mm or more, 180 mm or less, preferably 120 mm or less, and 10 mm or more and 180 mm or less, preferably 15 mm or more and 120 mm or less. The hair holder according to any one of 1> to <49>.
<51>
The outer diameter D2 of the cylindrical body in a wound state is 10 mm or more, preferably 15 mm or more, 60 mm or less, preferably 50 mm or less, and 10 mm or more and 60 mm or less, preferably 15 mm or more and 50 mm or less. The hair holder according to any one of <1> to <50>.
<52>
When the cylindrical body is wound up, when the sheet positioned on the inner side is a one-sided sheet and the sheet positioned on the outer side is another sheet,
The seam length L34 at the sutured portion of the one-sided sheet is 3% or more, preferably 4% or more, and 15% or less, preferably 13% or less, with respect to the outer diameter D2 of the cylindrical body. The hair holder according to any one of <1> to <51>, which is 3% to 15%, preferably 4% to 13%.

Hereinafter, the present invention will be described in more detail by way of examples. The scope of the present invention is not limited to such embodiments.

[Reference Example 1]
A hair holder was prepared in which the suture portion was formed by a plurality of straight stitches. The hair holder was formed by joining the two side edges of the one-sided sheet and the opposite-sided sheet by two straight stitches aligned in the width direction and integrating these sheets.
The nonwoven fabric obtained by the wet paper-making method was used for two sheets which comprise a hair holder. The non-woven fabric is 22% rayon fiber (fineness 1.7 dtex, fiber diameter 12 μm, fiber length 5 mm), PET fiber (fineness 1.7 dtex, fiber diameter 12.5 μm, fiber length 10 mm) 18%, PP / PE fiber (sheath Type composite fiber, a denier of 2.2 dtex, a fiber diameter of 17.5 μm, a fiber length of 10 mm, and 50% of PVA fiber (a denier of 1.1 dtex, a fiber diameter of 10 μm, a fiber length of 3 mm) of 10% are used as raw materials.
For straight-line sewing, a sewing thread made of polyester made by Fujix Co., Ltd., part number "Shappespan sewing thread # 60" is used.

The hair holder of Reference Example 1 was manufactured by laminating two sheets of the same shape and size rectangular shape, forming a suture portion thereon, and integrating the two sheets. The hair holder had a length of 300 mm in the longitudinal direction X, a length of 100 mm in the width direction Y, and a length between the sewn portions in the width direction Y, that is, the length of the tubular portion in the width direction Y was 70 mm . As a seamed portion, two straight stitches of 250 mm in the longitudinal direction X from the end on the opening side of one end are lined in the width direction by lock stitching as described in JIS L 0120 at each side edge of the hair holder Formed. The stitched portion of Reference Example 1 was formed so that the end on the opening side of the other end of the hair holder and one end of the stitched portion substantially coincide with each other. That is, the sutured part was formed so that the end of the sutured part on the opening side of one end was separated 50 mm inward in the longitudinal direction from the end on the opening side of one end of the hair holder. The interval between straight stitches in the width direction Y was 5 mm. The seam length was 2 mm, and the seam pitch length was 2 mm.

Reference Example 2
A hair holder having the same configuration as that of Reference Example 1 was prepared except that the seamed portion was formed by zigzag stitching. The length of the zigzag stitch in the width direction Y was 5 mm. The zigzag stitching had a length of 250 mm along the longitudinal direction of the hair holder, a seam length of 2 mm, and a seam pitch length of 6 mm.

[Reference Example 3]
A hair holder having the same configuration as that of Reference Example 1 was prepared except that a reverse-stitched portion was provided in the stitched portion on the opening side on one end and the opening on the other end. The backstitch was formed with the same seam dimensions as the suture so that it all overlapped the suture in the longitudinal direction X. The length of the reverse stitch was 12 mm.

[Reference Example 4]
A hair holder having the same configuration as that of Reference Example 2 was prepared except that a reverse-stitched portion was provided in the stitched portion on the opening side on one end and the opening on the other end. The back-to-back stitch was formed by straight stitching of the same size as that of Reference Example 1 so that the whole in the longitudinal direction overlapped with a part of the zigzag stitching on the stitching portion. The backstitch had a length of 12 mm along the longitudinal direction of the hair holder.

[Reference Example 5]
A hair holder having the same configuration as that of Reference Example 1 was prepared except that the seamed portion was formed by one straight stitch.

The sutured portion and its peripheral portion were cut out from one side edge portion of the hair holder of Reference Examples 1 to 5 and used as a sheet for evaluation. The evaluation sheet was a rectangle having a length of 300 mm and a width of 8 mm. And the joint strength of the suture part of the sheet | seat for evaluation was evaluated with the following method.
The two sheets constituting the hair holder are not sewn at the end on the opening side at one end, so the part corresponding to the end on the opening side of the one end of the evaluation sheet is the two sheets. The sheet can be doubled up and down. The two sheets were attached to the upper chuck and the lower chuck of the tensile tester (Autograph AG-5kNXplus, a precision universal tester manufactured by Shimadzu Corporation) with the two sheets in a double-opened state. . At this time, one of the sheets and the other sheet were gripped by both chucks at positions separated by 15 mm inward in the longitudinal direction from each end, that is, the end on the opening side of one end. That is, the distance between both chucks was 70 mm. Then, while the position of the lower chuck was fixed, the upper chuck was raised at a displacement speed of 100 mm / min until one of the sheets peeled from the other sheet.
A graph showing the relationship between the displacement (mm) of the upper chuck and the load (N) applied to the end of the evaluation sheet with the displacement is shown in FIG. In the figure, (A) is reference example 1, (B) is reference example 2, (C) is reference example 3, (D) is reference example 4, and (E) is reference example 5. In the graph shown in FIG. 6, as the peak of the load (N) is larger, the bonding strength of the sutured portion is higher. In addition, even with the same joint strength, the smaller the value of the displacement (mm) of the upper chuck in the joint strength, the less likely the sutured part is to be loosened.

It is shown from FIG. 6 that the hair holders of Reference Examples 1 to 4 have a higher bonding strength at the sutured portion as compared with Reference Example 5. In addition, it was shown that the stitched portion by the zigzag stitching of the reference example 2 has a larger bonding strength than the straight stitching of the reference example 1. Thus, the hair holders of Reference Examples 1 to 4 have excellent durability even after repeated use.
The hair holders of Reference Example 3 and Reference Example 4 showed a large load (N) when the displacement (mm) was about 10 mm. As described above, by having the reverse-stitched portion at the end portion of the sutured portion, it is possible to improve the bonding strength of the end portion and to suppress the unfolding of the sutured portion due to the load.

[Examples 1 to 5 and Comparative Example 1]
The sheet constituting the tubular portion is used as a shape memory sheet, and the slit is provided on the other side sheet, and the length and stitch pitch of each seam in the stitched portion of the one side sheet and the other side sheet are changed. A hair holder having a similar configuration was manufactured. As described above, the one-sided sheet is a sheet positioned inside when the hair holder is wound, and the other-sided sheet is a sheet positioned outside when the hair holder is wound. A polyester non-woven fabric (trade name "Smash", manufactured by Asahi Kasei Corporation) was used as the shape memory sheet. After two sheets of such a sheet were laminated and stitched, they were shaped into a roll and a hair holder was manufactured. In the hair holder, in the natural state, the tubular body was in the form of a roll. The slits had a width of 50 mm, and twenty slits were formed at equal intervals in the longitudinal direction of the cylindrical body. The length of each stitch and the pitch of the stitches in Examples 5 to 9 and Comparative Example 2 are shown in Table 1 below.

As the performance evaluation of each hair holder in Examples 1 to 5 and Comparative Example 1, the workability, the appearance of the wound hair holder, and the finish of the curled shape of the hair bundle were evaluated. Three panelists performed each evaluation based on the following evaluation criteria, and performed it by calculating the average value of the evaluation point. The evaluation results are shown in Table 1 below. The method of each evaluation is as follows.

[Evaluation of workability]
The workability of adjusting the winding diameter of the wound hair holder was evaluated. Evaluation criteria are as follows.
Three points: Almost no distortion occurs in the wound cylindrical body, and the winding diameter can be easily adjusted.
Two points: Distortion occurs in the wound cylindrical body, and it is difficult to adjust the winding diameter slightly.
1 point: A wrinkle arises with distortion in the cylindrical body of a winding state, and adjustment of a winding diameter is difficult.
The distortion in the present evaluation is a distortion of a size that can be visually confirmed by the panelists.

[Evaluation of appearance of hair holder in wound state]
The hair holder was wound such that the outer diameter of the tubular body was 26 mm, and the wound hair holder was observed from the side to evaluate the appearance of the hair holder. When the hair holder in a wound state is viewed from the side, the sheet constituting the tubular body usually forms a plurality of wound portions to form a spiral. Evaluation criteria are as follows.
Three points: No distortion occurs, and almost no gap is generated between adjacent winding parts.
2 points: distortion of 5 or less is generated, and a gap of less than 5 mm is generated in part between adjacent winding parts.
One point: Six or more distortions are generated, and a gap of 5 mm or more is generated in part between adjacent winding parts.
The distortion in this evaluation is a distortion in which the radial length of the wound hair holder is 1.5 mm or more.

[Evaluation of finish of curl shape of hair bundle]
A hair bundle with a length of 20 cm and a weight of about 20 g was prepared using straight Asian hair with no chemical treatment history. This hair bundle was inserted into the cylindrical body of the hair holder, and the cylindrical body was rolled up with the hair bundle. Next, 5 g of one agent of perm solution (trade name "Topform Care Wave H-TG", manufactured by Kao Salon Japan) was supplied from the slit of the hair holder, and the perm solution was spread over the entire hair bundle. Thereafter, the hair holder was allowed to stand for 15 minutes while holding the hair bundle. Thereafter, the first agent was thoroughly washed away with running water. Subsequently, 5 g of two agents of perm solution (trade name "Topform Care Wave H-TG", manufactured by Kao Salon Japan, Inc.) were supplied, and the perm solution was spread over the entire hair bundle. Thereafter, the hair holder was allowed to stand for 15 minutes while holding the hair bundle. The hair bundle was removed from the hair holder and the second agent was thoroughly washed away with running water. It was treated with a rinse (trade name "merit", manufactured by Kao Corporation) and thoroughly washed away with running water. The hair tress was towel dried and then air dried at room temperature 25 ° C. for 24 hours. In this way, the hair bundle was given a curled shape. The curled finish of the hair bundle was then evaluated. Evaluation criteria are as follows.
3 points: The curl shape is firmly applied to the hair bundle and the finish is good.
2 points: Curled shape is generally given to the hair bundle.
1 point: The hair bundle is given an unintended undulation shape, and the finish is insufficient.

As is clear from Table 1, in Examples 1 to 5, the workability for adjusting the winding diameter, the appearance of the hair holder in the wound state, and the curled shape of the hair bundle, as compared with Comparative Example 1. The result was excellent. This affects the fact that distortion is less likely to occur in the wound cylindrical body by making the length of the seam at the seamed portion of the opposite side sheet longer than the length of the seam at the seamed portion of the front side sheet. It is thought that From the results in Table 1, the appearance of the wound hair holder and the curled shape imparted to the hair bundle when the seam length in the stitched portion of the other side sheet is 2.0 mm or more and 4.0 mm or less It was shown to be effective for the finish of

[Examples 6 to 15]
A hair holder having the same configuration as that of Example 1 was manufactured except that the seam length and seam pitch of the seamed portion of the one-sided sheet were changed, and reinforcements were arranged at each of the pair of seamed portions. As a reinforcing material, a resin film (trade name "Lumirror S10 # 188", manufactured by Toray Industries, Inc.) cut into a length of 250 mm and a width of 8 mm was used. It sewed in the state arrange | positioned on the outer surface sheet of the other surface sheet | seat of a cylindrical body, and was made to integrate with a cylindrical body. In the hair holder, in the natural state, the tubular body was in the form of a roll. The outer diameter of the cylindrical body is shown in Table 2 below. The seam lengths and seam pitches of the one-sided sheets in Examples 6 to 15 are shown in Table 2 below.

As the performance evaluation of each hair holder in Examples 6 to 15, the bonding state of the reinforcing material and the cylindrical body, the durability of the bonding state, and the finish of the curled shape of the hair bundle were evaluated. Three panelists performed each evaluation based on the following evaluation criteria, and performed it by calculating the average value of the evaluation point. The evaluation results are shown in Table 2 below. The method of each evaluation is as follows. [Curl shape finish of hair bundle] was evaluated by the same method as the performance evaluation of the hair holder in Examples 6-15.

[Bonded state of reinforcing material and cylindrical body]
With the hair holder stretched, the bonding state between the reinforcing material and the cylindrical body was observed and evaluated according to the following evaluation criteria.
3 points: The gap between the reinforcing material and the other side sheet is less than 1 mm.
2 points: The gap between the reinforcing material and the other side sheet is less than 2 mm.
1 point: The gap between the reinforcing material and the other side sheet is 2 mm or more.

[Durability of bonding state between reinforcing material and cylindrical body]
While maintaining the hair holder in a stretched state, the hair bundle was inserted into the tubular body using the hair insertion tool described in JP-A-2009-195746, and the operation for pulling out the hair bundle was repeated 100 times. Then, the joining state of a reinforcing material and a cylindrical body was observed, and the following evaluation criteria evaluated. The hair bundle used was the same as the hair bundle used in the above-mentioned [Evaluation of finish of curl shape of hair bundle].
3 points: The gap between the reinforcing material and the other side sheet is less than 1 mm.
2 points: The gap between the reinforcing material and the other side sheet is less than 2 mm.
1 point: The gap between the reinforcing material and the other side sheet is 2 mm or more.

As is clear from Table 2, in Examples 6 to 15, the gap between the reinforcing material and the other surface sheet is less than 2 mm, and the result of the excellent bonding state between the reinforcing material and the cylindrical body and its durability is became. Further, as in the case of Examples 1 to 5, the result was excellent in the finish of the curled shape of the hair bundle. When the gap between the reinforcing material and the other side sheet is 2 mm or more, there is a possibility that the thread of the sutured part may be unwound and the reinforcing material may be separated from the other side sheet. According to the results in Table 2, when the seam length in the stitch portion of the one-sided sheet with respect to the outer diameter of the wound cylindrical body is 15% or less, the bonding state between the reinforcing material and the cylindrical body and the hair bundle It has been shown to be effective in finishing the curled shape applied.

According to the present invention, there is provided a hair holder having excellent durability against repeated use and high winding power.

Claims (17)

1. A hair holder having a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body having a longitudinal direction and a width direction orthogonal to the longitudinal direction. There,
   The tubular body has a pair of sutured portions in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutured portions is inserted.
   The pair of suture portions each extend along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. ,
   The two or more sheets include the sheet constituting the cylindrical portion, and some or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet,
   The hair holder wherein the sheet positioned on the outside when the tubular body is rolled up has a longer seam length in the stitching portion as compared to the sheet positioned on the inside.
2. A hair holder having a cylindrical body configured to be capable of inserting a hair bundle from the opening at one end toward the opening at the other end, the cylindrical body having a longitudinal direction and a width direction orthogonal to the longitudinal direction. There,
   The tubular body has a pair of sutured portions in which two or more sheets are integrated by stitching, and a tubular portion into which the hair bundle located between the pair of sutured portions is inserted.
   The pair of suture portions each extend along the longitudinal direction of the tubular body, and the suture portion includes an array area in which the seams are arranged with a width in the width direction of the tubular body. ,
   The two or more sheets include a sheet constituting the cylindrical portion and a reinforcing material disposed in each of the pair of suture portions, and the sheet constituting the cylindrical portion is a non-woven fabric The reinforcing material is a resin film,
   A hair holder, wherein some or all of the sheets constituting the cylindrical portion are formed of a shape memory sheet.
3. The hair holder according to claim 2, wherein the reinforcing material is made of polyester film and has a thickness of 0.10 mm or more and 0.40 m or less.
4. The hair holder according to claim 2 or 3, wherein the reinforcing material is disposed on the outer surface of the sheet located outside at the time of rolling up.
5. The hair holder according to any one of claims 1 to 4, wherein each of the pair of suture portions includes, as the arrangement region, a region including a plurality of straight stitches in which the seams are linearly arranged.
6. The hair holder according to claim 5, wherein the seams are parallel to the longitudinal direction of the tubular body.
7. The hair holder according to claim 5 or 6, wherein two or more straight stitching portions are formed side by side in the arrangement area in each of the pair of stitching portions.
8. The pair of suture portions each include a region including a bending stitch portion in which stitches in a sewing direction different from the direction along the longitudinal direction of the tubular body are arranged as the arrangement region. A hair holder according to any one of the preceding claims.
9. 9. The hair holder according to claim 8, wherein the bent seam portion has a seam in which the sewing direction is inclined with respect to the longitudinal direction, a seam in which the sewing direction is parallel to the width direction, or a combination of these seams. .
10. The length of the arrangement region in the width direction of the cylindrical body is 3% or more and 10% or less of the length in the width direction of the cylindrical body. Hair holder as described in.
11. The hair holder according to any one of claims 1 to 10, wherein in the tubular body, both side edges of the two or more sheets are integrated by the pair of suture portions.
12. The hair holder according to any one of claims 1 to 11, wherein the two or more sheets are joined to each other at the suture portion and are not joined to each other at portions other than the suture portion.
13. The hair holder according to any one of claims 1 to 12, wherein the suture portion has a reverse stitch on at least one end side in the longitudinal direction of the suture portion.
14. Any one or more of the two or more sheets have an extending portion extending from the longitudinal direction of the cylindrical body, and an extension stitching portion is formed on an extension of the stitching portion in the extending portion. The hair holder according to any one of claims 1 to 13, wherein all or a part of the extended stitch portion is a reverse stitch.
15. The color of the sewing thread which forms the said stitching | suture part is different from the color of the both-sides edge of either one of the two sheets which comprise the outer surface of the said cylindrical body in any one of Claims 1-14. Hair holder.
16. A color chart of 24 colors in which the color of the sewing thread and the color of one of the side edges of one of the two sheets constituting the outer surface of the cylindrical body are classified according to the Ostwald hue circle, The hair holder according to claim 15, wherein the hue number is in a range shifted by one or more.
17. The hair holder according to any one of claims 1 to 16, wherein the sewing thread forming the suture portion has a heat resistant temperature of 100 属 C or more and 600 属 C or less.

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