JP3099987U - Heat shrink tubing used for extension method - Google Patents

Abstract

A heat-shrinkable tube for use in an extension method, wherein the heat-shrinkable tube can be easily removed without imposing a load on the self-hair after fixing its own hair and a hair bundle for attachment. provide.
A heat-shrinkable tube is heated when a hair bundle for attachment is attached to an appropriate amount of self-hair, thereby contracting the heat-shrinkable tube to fix the hair and the hair bundle for attachment. In the heat-shrinkable tube used in the above-mentioned extension method, a perforated cut line 12 was formed from one open end to the other open end of the heat-shrinkable tube.
[Selection diagram] FIG.

Description

The present invention relates to a heat-shrinkable tube used for an extension method for attaching a hair bundle for attachment made of human hair or artificial hair to own hair.

2. Description of the Related Art Conventionally, in the field of beauty barbers, a technique referred to as an extension in which a hair bundle for attachment made of human hair or artificial hair is attached to own hair to extend the length of hair or increase the amount of hair. Exists.

With respect to such an extension technique, conventional methods as shown in the following (1) to (4) are generally known, but for any of the extension methods, a considerable skill is required for a worker. In addition to this, there is a problem in that it takes considerable time and effort to work, and on the other hand, not only does the user have a heavy burden on the hair and scalp, but also the mounting strength due to the weak binding strength There is also a problem that the hair bundle is easily detached.
(1) Main problems relating to "method of using glue gun / glue bond" a. A heavy load is applied to the hair at the time of attachment and removal b. Many of them tend to soften with shampoo, and are very weak in pulling to the tip of the hair, so that the hair bundle for attachment is easy to come off. (2) The main problem with "the method of braiding or tying and then tying with a thread" Point a. It takes time to install b. As the hair grows, the knitting becomes loose and tangled easily. C. The yarn degrades with water and is unsanitary d. The bristle bundle for attachment is easy to come off because it is weak to the pulling force to the hair tips. (3) Main problems related to "Method of forming knot by looping own hair, braiding, and tying with rubber thread" a. It takes time to install b. The thread rubber deteriorates with water and is unsanitary. C. In daily life, hair is easily entangled and the attachment hair bundle is easily detached. (4) Main problems related to "method of crushing metal or hard resin bead chip with pliers" a. A heavy load is applied to the hair at the joint b. Use of pliers makes individual installation very complicated, and is not suitable for continuous long-time work. C. Uneven mounting is likely to occur, and if the binding strength is weak, the bristle bundle for mounting is likely to come off

The applicant of the present application can easily and quickly attach a hair bundle for attachment of any material consisting of human hair or artificial hair to the self hair, and furthermore, the binding strength between the self hair and the hair bundle for attachment is strong, In order to provide an extension method that can also reduce the burden on the user's hair and scalp, a patent application has already been filed for the uniquely developed “extension method using a heat-shrinkable tube”. (Japanese Patent Application No. 2003-177407).

熱 The heat-shrinkable tube has the property that the tube itself shrinks in the radial direction when heated using an iron or dryer. The structure and material of the heat-shrinkable tube include, for example, an electron beam cross-linked soft polyolefin resin for the outer layer and a heat-meltable polyolefin resin for the inner layer, an electron beam cross-linked soft polyolefin resin, or an electron beam cross-linked soft flame retardant. By employing a material in which a hot-melt adhesive is provided on the inner surface of the polyolefin resin, it is possible to increase the binding strength between the self-hair and the mounting hair bundle.

When using the heat-shrinkable tube in the extension method as described above, when removing the heat-shrinkable tube, there is a method of melting and sliding with heat, but in this method, the adhesive is stretched and adheres to the hair, etc. There is a disadvantage. Another method of removing the heat-shrinkable tube is to cut the end of the heat-shrinkable tube with scissors or a cutter to remove the heat-shrinkable tube. Applying force may put a burden on the hair.

The present invention relates to an extension method in which the heat-shrinkable tube is heated to shrink the heat-shrinkable tube to fix the self-hair and the mounting hair bundle when the mounting hair bundle is attached to an appropriate amount of hair. In a heat-shrinkable tube to be used, it is an object to provide a heat-shrinkable tube that can easily remove the heat-shrinkable tube without imposing a load on the self-hair after fixing the self-hair and the hair bundle for attachment. I do.

In order to solve the above problem, the invention according to claim 1 is to heat the heat-shrinkable tube by heating the heat-shrinkable tube when attaching the attachment hair bundle to an appropriate amount of the self-hair, thereby shrinking the heat-shrinkable tube and the self-hair. In the heat-shrinkable tube used in the extension method in which the hair bundle for attachment is fixed, a perforated cut line is engraved from one opening edge to the other opening edge of the heat-shrinkable tube. The configuration was adopted.

Thus, the heat-shrinkable tube can be easily removed without using heat or scissors to remove the heat-shrinkable tube.

According to a second aspect of the present invention, the perforated cut line described in the first aspect is formed by repeatedly forming slits at a constant pitch, and the length of the slit is 0.6 to 0.8 mm. The length of the pitch is set to 0.6 to 0.8 mm.

The invention according to claim 3 is characterized in that the perforated cut lines described in claim 1 or 2 are formed at two positions opposite to each other on the heat-shrinkable tube.

As described above, according to the invention of claim 1, a perforated cut line is cut from one opening edge to the other opening edge of the heat-shrinkable tube. It can be easily removed without using heat or scissors. Therefore, the labor of the operator can be saved, and the working time can be reduced. In addition, since no load is applied to the hair at the time of attachment and removal, there is no risk of damaging the hair. Further, the user can easily remove the heat-shrinkable tube by himself at home or the like.

According to the invention of the second aspect, the perforated cut line is formed by repeatedly forming slits at a constant pitch, the length of the slit is 0.6 to 0.8 mm, and the length of the pitch is 0. Since it is set to 0.6 to 0.8 mm, it becomes easy to break the heat-shrinkable tube along the perforated cut line. In addition, it is possible to stably supply products suitable for mass production while optimizing the work of processing perforated cut lines. Further, it is possible to prevent the appearance of the product from being impaired while improving the quality and function of the perforated cut line.

According to the third aspect of the present invention, since two perforated cut lines are formed at opposite positions of the heat-shrinkable tube, the heat-shrinkable tube is broken along the perforated cut line. It becomes even easier.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view showing a state where a perforated cut line is cut from one opening edge to the other opening edge of the heat-shrinkable tube.

よ う As shown in FIG. 1, 10 is a heat-shrinkable tube, and 12 is a slit. In the symbols in the drawing, L indicates the length of the heat-shrinkable tube, D indicates the inner diameter before shrinkage, S indicates the length of the slit, and P indicates the length of the pitch.

熱 The heat-shrinkable tube 10 used in the extension method has such a property that the tube itself shrinks in the radial direction when heated using an iron, a drier, or the like. The length (L) of the heat-shrinkable tube 10 needs to be adjusted to an appropriate length within a range of 3 mm to 20 mm so that it can be used for the extension method. Further, the present invention can be implemented as long as the inner diameter (D) of the heat-shrinkable tube 10 before shrinkage is in the range of 1 mm to 5 mm. In particular, the length (L) of the heat-shrinkable tube 10 according to the present invention is optimally set within the range of 5 mm to 7 mm, and the inner diameter (D) of the heat-shrinkable tube 10 before shrinkage is 2 mm to 3 mm. It is best to set it within the range.

As shown in FIG. 1, perforated cut lines are formed by repeatedly forming slits 12 at a constant pitch from one opening edge to the other opening edge of the heat-shrinkable tube 10. . It is necessary to adjust the length (S) of the slit to 0.5 to 5 mm and the length (P) of the pitch to an appropriate length within a range of 0.5 to 5 mm. In particular, in the heat-shrinkable tube 10 according to the present invention, the length (S) of the slit is set in the range of 0.6 to 0.8 mm, and the length (P) of the pitch is set in the range of 0.6 to 0.8 mm. It is best to keep. Thereby, it becomes easy to break the heat-shrinkable tube 10 along the perforated cut line. In addition, it is possible to stably supply the heat-shrinkable tube 10 suitable for mass production while optimizing the processing operation of the perforated cut line. Further, it is possible to prevent the appearance of the heat-shrinkable tube 10 from being spoiled while improving the quality and function of the perforated cut line.

Further, two perforated cut lines formed by repeatedly forming slits 12 at a constant pitch from one opening edge to the other opening edge of the heat-shrinkable tube 10 are formed at opposite positions of the heat-shrinkable tube 10. (See FIGS. 2 to 7).

Next, an extension method using two heat-shrinkable tubes 10 formed at positions where the perforated cut lines face each other will be described. In the embodiment described below, among the extension methods, a case will be described in which the self-hairs and the mounting hair bundle are crossed and the self-hairs are tied in a loop shape to tie them together, but this is used for the extension method according to the present invention. The heat-shrinkable tube is not limited to this. That is, a heat-shrinkable tube is used when attaching the self-hair and the attachment hair bundle, and the extension method includes a step of fixing the self-hair and the attachment hair bundle by heating and shrinking the heat-shrink tube. It can be applied to all of the heat-shrinkable tubes.

FIG. 2 is an explanatory view showing a state in which a heat-shrinkable tube is inserted through self-hair and arranged on the root side. As shown in FIG. 2, A is the ground, 10 is a heat-shrinkable tube, 12 is a slit, and 20 is self hair. The operator separates an appropriate amount of the hair 20 from the skin A of the user, inserts the heat-shrinkable tube 10 from the tip side 20b of the hair using a threader or a stick having a special tip shape, and further heat shrinks. The tube 10 is arranged on the root side 20a of the hair.

FIG. 3 is an explanatory view showing a state in which the self hair and the attachment hair bundle cross each other, the self hair is tied in a loop, and the two are tied together. After arranging the heat-shrinkable tube 10 on the root side 20a of the hair, the worker crosses the hair 20 and the central portion of the mounting hair bundle 30. Then, as shown in FIG. 3, a loop 21 is formed in the self-hair 20 and the self-hair 20 and the attachment hair bundle 30 are bound.

Further, in the present embodiment, an example in which the self hair 20 and the center portion of the attachment hair bundle 30 are crossed will be described, but the self hair 20 and the root side (30a) of the attachment hair bundle 30 are crossed. Both can be bound (not shown). In other words, if it is desired to attach a large amount of hair bundles with a small amount of attachment in accordance with the needs of the user, the central portion of the attachment hair bundle 30 should be crossed, while the orientation of the cuticle of the attachment hair bundle 30 When it is acceptable to increase the number of attachments, it is preferable that the roots (30a) of the attachment hair bundles 30 intersect.

Further, in this embodiment, an example in which the self-hair 20 is tied in a loop by a half-hitch knot will be described. However, the present invention is not limited to this, and a knot such as a two-half hitch may be appropriately adopted. Can be.

FIG. 4 is an explanatory view showing a state in which the heat-shrinkable tube is moved to the vicinity of the knot. After forming a loop 21 on the self-hair 20 and tying the self-hair 20 to the attachment hair bundle 30, the operator moves the heat-shrinkable tube 10 to the vicinity of the knot 22. Here, the knot 22 is preferably set at a position separated from the background A by about 0.5 to 2 cm.

FIG. 5 is a cross-sectional view of the heat-shrinkable tube in the state shown in FIG. As shown in FIG. 5, one bundle of self-hairs 20 and two bundles of attachment hair bundles 30 are arranged inside the heat-shrinkable tube 10 with an appropriate gap 11 therebetween.

FIG. 6 is an explanatory view showing a state in which the heat-shrinkable tube is shrunk to fix its own hair and the hair bundle for attachment. After moving the heat-shrinkable tube 10 to the vicinity of the knot 22, the operator shrinks the heat-shrinkable tube 10 by heating the heat-shrinkable tube 10 using an iron or a drier or the like, and the hair 20 and the hair bundle for attachment. And 30 are fixed.

FIG. 7 is a cross-sectional view of the heat-shrinkable tube in the state shown in FIG. As shown in FIG. 7, one bundle of self-hairs 20 and two bundles of attachment hair bundles 30 are in close contact with each other inside the heat-shrinkable tube 10 contracted by heating. It is fixed in a sandwiched state.

When removing the heat-shrinkable tube 10 fixed in such a state, if the hair tips on the root side or the tip side (30a or 30b) of one bundle of attachment hair bundles 30 are separated and spread with both hands, A force action spreading to both is applied to the heat-shrinkable tube 10, and the heat-shrinkable tube 10 can be broken along a perforated cut line (slit 12 shown in FIGS. 1 to 7) formed in the heat-shrinkable tube 10. The heat shrink tube 10 can be easily removed. Accordingly, the heat-shrinkable tube 10 can be easily removed without using heat, scissors, or the like in order to remove the heat-shrinkable tube 10, so that the labor of the operator can be saved and the working time can be reduced. Further, since no load is applied to the own hair 20 at the time of attachment and removal, there is no possibility of damaging the own hair 20. Further, the user can easily remove the heat-shrinkable tube 10 by himself / herself at home or the like.

It is an explanatory view showing the state where perforated cut lines were engraved from one opening edge of the heat-shrinkable tube to the other opening edge. It is explanatory drawing which shows the state which penetrated the heat-shrinkable tube to self hair and arrange | positioned at the base side. It is explanatory drawing which shows the state which crosses a self-hair and a hair bundle for attachment, connects the self-hair in a loop form, and ties both. It is explanatory drawing which shows the state which moved the heat-shrinkable tube to the vicinity of a knot. FIG. 5 is a cross-sectional view of the heat-shrinkable tube in the state shown in FIG. 4. It is an explanatory view showing the state where self-hair and the hair bundle for attachment were fixed by contracting the heat-shrinkable tube. FIG. 7 is a cross-sectional view of the heat-shrinkable tube in the state shown in FIG. 6.

Explanation of reference numerals

A Ground 10 Heat-shrinkable tube 11 Gap 12 Slit 20 Natural hair 20a Natural hair root side 20b Natural hair tip side 21 Loop 22 Knot 30 Mounting hair bundle 30a Mounting hair bundle root side 30b Mounting hair bundle distal end side

Claims (3)

When an attachment hair bundle is attached to an appropriate amount of self-hair, the heat-shrink tube is heated to shrink the heat-shrink tube to fix the self-hair and the attachment hair bundle for use in an extension method. A heat-shrinkable tube for use in an extension method, wherein a perforated cut line is cut from one opening edge to the other opening edge of the heat-shrinkable tube. The perforated cut line is formed by repeatedly forming slits at a constant pitch, and the length of the slit is set to 0.6 to 0.8 mm, and the length of the pitch is set to 0.6 to 0.8 mm. A heat-shrinkable tube for use in the extension method according to claim 1. The heat-shrinkable tube used in the extension method according to claim 1 or 2, wherein the perforated cut line is formed at two positions at positions facing the heat-shrinkable tube.

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