JP3015472U - Composite sheet material for wig base - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a composite sheet material for a wig base, in which a wig base can be easily manufactured and a uniform film thickness can be obtained in a molded product. [Structure] A thermoplastic resin sheet 22 different from the sheet 21 is releasably attached below a thermoplastic resin sheet 21 serving as a wig base. The sheet 21 is made of polyurethane resin elastomer, and the sheet 22 is made of polyethylene. [Effect] In the step of pressing the composite sheet material 10 against a forming die such as a blow molding method or a vacuum forming method, the lower sheet 22 having a low softening temperature is applied to the forming die. At this time, the lower sheet
Even if 22 extends and the film thickness varies, the upper sheet 21 can be formed to have a uniform film thickness.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wig base composite sheet material used for manufacturing a wig base.

[0002]

[Prior art]

 As a conventional wig base, a synthetic resin solution in which a synthetic resin or a thermoplastic resin is appropriately dissolved in an organic solvent or the like is applied to a male mold, followed by drying to evaporate the organic solvent or the like, and the steps of applying and drying the same. There is known a so-called casting method in which a wig base having a desired thickness is repeatedly obtained. The wig base includes a wig base that constitutes the entire wig, or a partial base that constitutes hair splitting parts, toothpicks, and the like.

On the other hand, although not usually used for a wig base, as a method of molding a synthetic resin sheet into a specific shape, the synthetic resin sheet is heated and softened. A blow molding method in which air is blown to the sheet material to make it adhere to the mold, or a synthetic resin sheet material is heated and softened, and then vacuum is applied to bring the sheet material into close contact with the mold. There is a molding method. For example, in the material to be molded disclosed in JP-A-55-95519, a single sheet-like material (Fig. 4) is used.

Further, in Japanese Unexamined Patent Publication No. 4-298323, a plastic sheet is heated, compressed air is sent from below a mold having multiple pores, and compressed air is applied to the plastic sheet through the porous mold to make a preliminary. In some cases, the blow molding method for shaping and the vacuum molding method for further vacuuming after pushing up the mold to spread the plastic sheet are a single sheet. It is composed of a material (Fig. 1).

[0005]

[Problems to be Solved by the Invention] A wig base formed by applying the above synthetic resin solution to a male male type tends to generate air bubbles in the wig base during the application or drying of the synthetic resin solution. Therefore, this causes a decrease in strength of the wig base after molding, and there is a problem that the appearance is impaired by the inclusion of the bubbles. Furthermore, when using a male-head type, since the surface has irregularities and slopes, the applied synthetic resin solution is likely to accumulate in the recesses, resulting in a thick film thickness. It was easy for the solution to run off and the film thickness to become thin. In the above casting method, it is conceivable to increase the concentration of the resin component of the synthetic resin solution or increase the coating amount per time in order to obtain the desired film thickness by one-time application. It is difficult for air bubbles to be mixed in the base or for variations in the film thickness to occur. In the actual manufacturing of a wig base, lower the resin concentration of the synthetic resin solution, and apply the coating and drying until the desired film thickness is achieved. There was a problem that the process had to be repeated and the work took a long time. Furthermore, in the case of a manufacturing method in which a synthetic resin solution is applied, the viscosity of the synthetic resin solution tends to cause a difference in the film thickness of the wig base, so it is necessary to adjust the viscosity of the synthetic resin solution and skill is required. .

On the other hand, in the blow molding method and the vacuum molding method, a female mold is generally used as a molding mold, whereas a molding mold generally used in manufacturing a wig base is generally a male mold. In addition, since the male head has unevenness and inclination, which must be reproduced faithfully and have a uniform film thickness, the conventional blow molding method and vacuum molding method can be used as they are for the production of wig bases. It is difficult. In other words, when molded from a single sheet like these, if the wig base requires thin elasticity, the thickness of the sheet after molding will vary, and it will become partially thin. If you use this for a wig base, the wig base will be shiny and will lose its natural appearance when worn, making it easier to see that you are wearing the wig and if it is partially thinned The base could be warped or curled, and the required strength could not be obtained, so it could not be used as a wig base.

Therefore, an object of the present invention is to provide a composite sheet material for a wig base, in which a wig base can be easily manufactured and a uniform film thickness can be obtained in a molded product.

[0008]

[Means for Solving the Problems]

 The invention according to claim 1 is a composite sheet material for a wig base, characterized in that a thermoplastic resin sheet different from the thermoplastic resin sheet serving as a wig base is releasably attached.

The invention of claim 2 is characterized in that the different thermoplastic resin sheets have a lower softening temperature than the thermoplastic resin sheet which is the wig base, and the composite sheet material for wig bases according to claim 1. Is.

The invention of claim 3 is the composite sheet material for a wig base according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is made of a polyurethane resin elastomer.

The invention of claim 4 is the composite sheet material for a wig base according to claim 2, wherein the different thermoplastic resin sheets are made of polyethylene.

The invention of claim 5 is characterized in that the thermoplastic resin sheet as the wig base is made of polyurethane resin elastomer, and the different thermoplastic resin sheet is made of polyethylene. Composite sheet material for automobiles.

The invention of claim 6 is the composite sheet material for a wig base according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is provided with a matting portion.

According to a seventh aspect of the invention, the thermoplastic resin sheet made of polyethylene has a thickness of 0. The composite sheet material for a wig base according to claim 4 or 5, wherein the composite sheet material has a thickness of 2 to 0.4 mm.

[0015]

[Action]

 In the structure of claim 1, since the composite sheet material has two layers of a sheet as a wig base and a different sheet, for example, a step of pressing the composite sheet material against a forming die such as a blow molding method or a vacuum forming method. In the above, by applying the lower surface of the composite sheet material to the forming die, the sheet serving as the wig base does not directly contact the forming die, so that the sheet does not come into contact with the forming die and is not rapidly cooled. A stable wig base can be molded. Although the mold of a wig generally has irregularities and slopes, the wig base sheet can be molded without directly contacting the mold, so even if the mold has protrusions or slopes, these The portion is not unnecessarily extended, and the film thickness of the wig base sheet after molding can be made uniform. Moreover, in blow molding using this composite sheet material, it is possible to inflate the composite sheet material by applying compressed air from the lower sheet side, so that the compressed air does not directly contact the upper sheet side and the wig base The sheet can be inflated evenly without being partially expanded, and the film thickness accuracy can be improved. Since it is possible to form a wig base from a sheet, it is possible to obtain a wig base with a uniform thickness, without the need for skill, unlike the case of applying a synthetic resin solution multiple times as in the past. You can

In the structure of claim 2, since the thermoplastic resin sheet below the thermoplastic resin sheet serving as the wig base has a low softening temperature, for example, a composite sheet material can be formed into a mold such as a blow molding method or a vacuum molding method. In the process of pressing, by pressing the lower sheet with a low softening temperature to the mold, even if the lower sheet extends and the film thickness varies, the upper sheet is formed with a uniform film thickness. Further, by applying the lower surface of the composite sheet material to the forming die, the sheet as the wig base does not directly contact the forming die, so that the sheet does not come into contact with the forming die and is not rapidly cooled. A stable wig base can be molded. Generally, a mold for a wig has irregularities and slopes, but since the sheet that serves as the wig base can be molded without directly contacting the mold, even if the mold has protrusions or slopes, these The part of the wig does not spread more than necessary, and the film thickness of the wig base sheet after molding can be made uniform. Moreover, in blow molding using this composite sheet material, compressed air can be applied from the lower sheet side to inflate the composite sheet material, so that the compressed air does not directly contact the upper sheet side and the wig base The sheet can be inflated evenly without being partially expanded, and the film thickness accuracy can be improved. Furthermore, since the softening temperature of the lower sheet is lower than that of the upper sheet, which is the base of the wig, the lower sheet is molded in a relatively short time after the composite sheet material is pressed against the molding die. It is possible to shorten the time for which the is adhered to the molding die.

According to the third aspect of the invention, the polyurethane resin elastomer has a relatively low softening temperature, is easy to process, and has elasticity suitable for a wig base. This elasticity provides a good wearing feeling and further durability. In addition to being excellent in light resistance, it does not discolor even when exposed to light and has excellent light resistance.

In the structure of claim 4, the different sheets are made of polyethylene, and this polyethylene has excellent spreadability, and for example, in the step of pressing the composite sheet material to the molding die such as blow molding method or vacuum molding method, Since it is difficult for wrinkles to enter when pressed against, it is possible to faithfully form the sheet that serves as the base of the mold by following the forming die. In addition, the lower sheet made of polyethylene has a lower softening temperature than the upper sheet used as the wig base, and after pressing the composite sheet material against the forming die, the sheet made of polyethylene follows the forming die in a relatively short time. Since it is molded, it is possible to shorten the time for bringing the composite sheet material into close contact with the molding die.

According to the structure of claim 5, the polyurethane resin elastomer has a relatively low softening temperature, is easy to process, and has elasticity suitable for a wig base. This elasticity provides a good wearing feeling and further durability. In addition to being excellent in light resistance, it does not discolor even when exposed to light and has excellent light resistance. Also, different sheets are made of polyethylene, and this polyethylene has excellent spreadability, and wrinkles do not appear when it is pressed to the molding die in the process of pressing the composite sheet material to the molding die such as blow molding method or vacuum forming method. Since it does not easily enter, the wig base sheet can be faithfully formed by following the forming die. Also, the softening temperature of the lower sheet made of polyethylene is lower than that of the upper sheet, which is the base of the wig, and after the composite sheet material is pressed against the forming die, the sheet made of polyethylene follows the forming die in a relatively short time. Since the composite sheet material is molded by the above method, it is possible to shorten the time for bringing the composite sheet material into close contact with the mold.

According to the configuration of claim 6, the wig base after molding loses its luster due to the matte portion, and the matte state can be maintained without the matting during molding.

According to the structure of claim 7, since the thickness is 0.2 mm or more, temperature control during heating becomes relatively easy, and wrinkles do not occur in the lower sheet to cause defective molding. Shrinkage of the composite sheet material that occurs during cooling can be suppressed to a minimum, and since it is 0.4 mm or less, the molding accuracy of the upper sheet is impaired when the lower sheet is pressed against the mold. It is possible to secure the forming accuracy of the upper sheet that is the base of the wig.

[0022]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 7 show a first embodiment of the present invention, in which a wig base composite sheet material 10 (hereinafter referred to as composite sheet material 10) is a wig as shown in FIG. An auxiliary thermoplastic resin sheet 22 (hereinafter referred to as auxiliary sheet 22) having a softening temperature lower than that of the sheet 21 is removably attached to a base thermoplastic resin sheet 21 (hereinafter referred to as sheet 21), The wig base becomes the entire wig. It is preferable that the sheet 21 and the auxiliary sheet 22 are configured such that they can be adhered to each other by simply laminating and pasted without using an adhesive or the like, and can be peeled off. As the wig-based sheet 21, a polyurethane resin elastomer, soft vinyl chloride, etc. can be appropriately used as long as it is a thermoplastic resin. However, due to durability, easiness of processing and flexibility of the resin, a polyurethane resin is used. Elastomers are preferred. Further, as the auxiliary sheet 22, a thermoplastic resin sheet having a softening temperature lower than that of the above-mentioned sheet 21 is used, and in this embodiment, a polyurethane resin elastomer is used as the sheet 21 which is the base after the molding. Therefore, the auxiliary sheet 22 is preferably made of polyvinyl chloride, acrylic, polystyrene, or polyolefin resin, such as polyethylene or polypropylene. Among them, polyethylene is preferable because of the spreadability of the resin when it is softened by heating. Particularly preferred in the present embodiment, by using polyethylene for the auxiliary sheet 22, wrinkles are less likely to enter the auxiliary sheet 22 when pressed against the heat-softened forming die 20, and the film thickness of the auxiliary sheet 22 is further reduced. Minimizes the molding accuracy of the wig base after molding and the shrinkage of the composite sheet material 10 that occurs during cooling after molding. Because, it has a degree from the 0.2 than 0.4 millimeters (mm) or less. Further, the auxiliary sheet 22 may be transparent, semi-transparent, or colored, and if necessary in other steps performed after the composite sheet material 10 is formed following the forming die 20, a production line to be described later. It is only necessary to allow visual recognition. Furthermore, as the molding die 20, a plaster, a thermosetting resin, or a wooden male head is used.

An example of a molding apparatus for molding a wig base using the composite sheet material 10 will be described. Inside the molding apparatus 1, a substantially box-shaped molding chamber 2 is provided, and an upper opening of the molding chamber 2 is provided. 3, a metal pedestal 4 is provided, and a metal sheet clamp 5 as a composite sheet material fixing means is rotatably connected to the rear side of the pedestal 4, and the sheet clamp 5 has a substantially same shape as the pedestal 4. A heater 8 having a frame portion 5A, an auxiliary base 6 integrally provided from the rear side of the pedestal 4 to the outside, and a wheel 7 as a moving means is provided as a heater 8 as a heating means. It is configured to be movable on the clamp 5. In the forming chamber 2, an elevating table 9 having substantially the same shape as the flat cross section of the forming chamber 2 is provided so as to be able to move up and down, and the seat clamp 5 is provided in the upper opening 3 for the wig base larger than the upper opening 3. With the composite sheet material 10 fixed, the internal space 11 of the molding chamber 2 above the elevating table 9 is maintained in a substantially sealed state. It should be noted that this almost closed state is a state in which the composite sheet material 10 is fixed by the sheet clamps 5, and a slight air leaks to the outside from the gap between the composite sheet material 10 and the sheet clamps 5 and the inner surface of the molding chamber 2 moves up and down. The air is allowed to escape slightly from the gap with the outer periphery of the table 9. Further, an air cylinder 12 as an advancing and retracting means is provided below the molding chamber 2, and a rod 12A of the air cylinder 12 is connected to the elevating table 9, and the elevating table 9 is moved to the upper opening 3 by the expansion and contraction of the rod 12A. Move forward and backward. A suction hole 13 is formed in the center of the lifting table 9, and the suction hole 13 is connected to a vacuum pump 16 serving as a suction means via an expansion tube 14 and a suction tube 15. Further, an air supply hole 17 is formed on a side portion of the molding chamber 2, and the air supply hole 17 is connected to a compressor 19 as an air supply means via an air supply pipe 18. Then, the molding die 20 is placed or fixed on the elevating table 9 and moves up and down together with the elevating table 9.

Next, the manufacturing method using the molding apparatus 1 using the composite sheet material 10 will be described. First, as shown in FIG. 3, the molding is performed on the lift table 9 elevated to the position of the upper opening 3 by the air cylinder 12. The mold 20 is arranged, and the air cylinder 12 is operated to lower the mold 20 as shown in FIG. Next, the composite sheet material 10 is placed on the pedestal 4 of the molding apparatus 1 with the sheet 21 facing upward, and when the composite sheet material 10 is heated, the excess portion outside the sheet 21 is prevented from being softened by heating. Therefore, the composite sheet material 10 is sandwiched and fixed by covering the sheet clamp 5 having the holding frame portion 5A having the same shape as the upper opening 3, and as shown in FIG. Move to the upper position of material 10 and heat. After the composite sheet material 10 is heated and softened, the heater 8 is moved onto the auxiliary table 6, and as shown in FIG. 6, high-pressure compressed air is sent to the internal space 11 to inflate the composite sheet material 10. Preform. As a degree of inflating the composite sheet material 10 by supplying the compressed air, as shown in FIG. 6, it is preferable that the bulge height H of the composite sheet material 10 is equal to or higher than the height of the molding die 20. In addition, in the step of inflating, the compressed air is not only at room temperature, but compressed air heated to about 50 to 80 ° C is sent to prevent the composite sheet material 10 from being cooled and hardened by the compressed air. You may be careful. Next, the air cylinder 12 is operated to raise the elevating table 9, and the molding die 20 is pushed up to be inserted into the inflated composite sheet material 10, and the vacuum pump 16 sucks the composite sheet material 10 to form the composite sheet material 10. The air between the molding dies 20 is evacuated to bring the composite sheet material 10 into close contact with the molding dies 20. When the molding die 20 is pushed up, the air in the internal space 11 is compressed as the lift 9 rises, the composite sheet material 10 swells uniformly, and the air serves as a cushion to form the molding die 20 when it is pushed up. The molding die 20 is inserted into the bulged inside of the composite sheet material 10 without partially contacting the sheet material 10. Air between the composite sheet material 10 and the molding die 20 is sucked through a gap between the upper surface of the elevating table 9 and the lower surface of the molding die 20. For example, if the molding die 20 is a gypsum mold formed by pouring gypsum, At the time of molding, since the plaster contracts to form irregularities (not shown) on the lower surface naturally, air can be sucked through the gaps due to the irregularities. Then, the composite sheet material 10 is brought into close contact with the molding die 20 by evacuation and cooled to about room temperature, then the composite sheet material 10 is released, the sheets 21 and 22 are separated from each other, or after cooling to about room temperature, The sheet 21 may be peeled off from the auxiliary sheet 22 while being in close contact with the molding die 20. When the matte surface, which is the upper surface of the composite sheet material 10, is to be further delustered, a synthetic resin solution prepared by dissolving a synthetic resin or a thermoplastic resin in an appropriate organic solvent with a matting agent added is applied to the surface. After applying the cloth, it is dried to evaporate the organic solvent, or the matte portion 23 is provided by pre-texturing the sheet 21 before molding by pressing the composite sheet material 10 against the molding die 20. deep.

As described above, in this embodiment, in response to claim 1, a thermoplastic resin sheet 22 different from the sheet 21 is releasably attached under the thermoplastic resin sheet 21 serving as a wig base. Since it is a composite sheet material 10 for a wig base, which is characterized in that, unlike the conventional case where a synthetic resin solution is applied multiple times, it is possible to obtain a wig base having a uniform thickness without requiring skill. In the step of pressing the composite sheet material 10 against the molding die 20 such as a blow molding method or a vacuum molding method, for example, by pressing the lower surface of the composite sheet material 10 against the molding die 20, the sheet 21 serving as the wig base is formed. Since it does not come into direct contact with the mold 20, it does not come into contact with the mold 20 and is not rapidly cooled, and a wig base of stable quality can be molded. Although the mold 20 for a wig generally has irregularities and slopes, since the sheet 21 that serves as the wig base can be molded without directly contacting the mold 20, the mold 20 has no protrusions or slopes. Even if there is, these portions will not be extended more than necessary, and the film thickness of the wig base sheet 21 after molding can be made uniform. Moreover, in the blow molding using the composite sheet material 10, it is possible to inflate the composite sheet material 10 by applying compressed air from the side of the auxiliary sheet 22 below, so that the compressed air is applied to the side of the upper sheet 21. The sheet 21, which is the wig base, can be inflated uniformly without being directly contacted, and the film thickness accuracy can be improved.

As described above, in the present embodiment, according to claim 2, the different thermoplastic resin sheet 22 has a lower softening temperature than the thermoplastic resin sheet 21 serving as the wig base. Since it is the composite sheet material 10 for a wig base, the softening temperature of the thermoplastic resin sheet 22 below the thermoplastic resin sheet 21 serving as the wig base is particularly low in addition to the effect of the above-mentioned claim 1, and therefore, for example, In the step of pressing the composite sheet material 10 against the molding die 20 such as the blow molding method or the vacuum molding method, by applying the lower auxiliary sheet 22 having a low softening temperature to the molding die 20, the lower auxiliary sheet Even if 22 extends and the film thickness fluctuates, the upper sheet 21 serving as the wig base can be molded with a uniform film thickness, and the composite sheet material 10 is pressed against the molding die 20. After that, the relatively lower auxiliary seat 22 To be molded in a short time, it is possible to reduce the time to contact the composite sheet member 10 to the mold 20.

As described above, in this embodiment, in accordance with claim 3, the thermoplastic resin sheet 21 serving as a wig base is made of a polyurethane resin elastomer, and the composite sheet material for a wig base according to claim 2. Since the polyurethane resin elastomer has a relatively low softening temperature, is easy to process, and has elasticity suitable as a wig base, this elasticity gives a good wearing feeling and is excellent in durability. In addition, it is not discolored even when receiving light, and has excellent light resistance.

As described above, in this embodiment, the different thermoplastic resin sheet 22 corresponds to claim 4, and the composite sheet material for a wig base 10 according to claim 2 is characterized in that it is made of polyethylene. Different auxiliary sheets 22 are made of polyethylene, and this polyethylene has excellent spreadability. For example, in the process of pressing the composite sheet material 10 to the molding die 20 such as the blow molding method or the vacuum molding method, it is pressed to the molding die 20. At this time, wrinkles are hard to enter, so that the sheet 21 serving as the wig base can be faithfully formed by following the forming die. Also, the lower auxiliary sheet 22 made of polyethylene 22 is lower in softening temperature than the upper sheet 21 which is the wig base, and after the composite sheet material 10 is pressed against the mold 20, the auxiliary sheet 22 made of polyethylene is compared. Since the composite sheet material 10 is molded in a relatively short time, it is possible to shorten the time for which the composite sheet material 10 is brought into close contact with the molding die 20 and improve workability during manufacturing.

As described above, in this embodiment, the wig base thermoplastic resin sheet 21 is made of a polyurethane resin elastomer, and the different thermoplastic resin sheet 22 is made of polyethylene. Since it is the composite sheet material 10 for a wig base according to claim 2, the same action and effect are provided corresponding to the above claims 3 and 4, and in addition, due to the property of the sheets 21 and 22, it can be peeled off. The composite sheet material 10 bonded to the above can be manufactured at a relatively low cost by, for example, extrusion lamination without using an adhesive material.

As described above, in this embodiment, in accordance with claim 6, the thermoplastic resin sheet 21 serving as the wig base is provided with the matting portion 23, and the composite for wig base according to claim 2. Since it is a sheet material 10, the wig base after molding is matte by the matte part 23, and the matte state can be maintained without gloss during molding, giving a natural appearance. Can be manufactured.

As described above, according to the seventh embodiment, the thermoplastic resin sheet 22 made of polyethylene has a thickness of 0.2 to 0.4 mm, according to the seventh embodiment. Since it is the wig-based composite sheet material 10 described above, for example, if the lower auxiliary sheet 22 is too thick, the auxiliary sheet 22 spreads more than necessary, and in particular, the variation in the film thickness of the auxiliary sheet 22 increases. Although the forming accuracy of the upper sheet 21 is lowered, the forming accuracy of the upper sheet 21 is not impaired when the sheet 21 is pressed against the forming die 20. If it is too thin, wrinkles tend to enter when pressed against the molding die 20, and temperature control during heating becomes complicated, but since it is 0.2 mm or more, wrinkles are less likely to enter, and further after molding. Minimal shrinkage of composite sheet material 10 during cooling Can be suppressed, it is possible to ensure forming accuracy of the upper sheet 21, also becomes easy temperature control during heating.

8 to 12 show a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. In contrast, while the wig base of the whole wig is shown, in this example, an example of a hair dividing part base is shown as an example of a partial base that is a wig base. The mold 20 shown in FIGS. A stand 20A made of paper or the like is integrally provided in the lower part, and the forming die 20 has a boundary line Rk indicating the bald head and hairline of the hair, and a production line Rb surrounding the hair dividing portion 20S of the forming die 20. A dividing line Rw indicating the dividing line in the hair part 3S is described respectively.

Then, the composite sheet material 10 in which a sheet 21 made of a polyurethane resin elastomer and an auxiliary sheet 22 made of polyethylene are releasably stuck together is cut into pieces larger than the hair dividing portion 20S, and as shown in FIG. The composite sheet material 10 is heated and softened by directing the auxiliary sheet 22 side toward the heating heater 24 which is a heating means, and as shown in FIG. 11, the auxiliary sheet 22 side of the heat-softened composite sheet material 10 is quickly It is pressed against the mold 20 and molded. After that, the composite sheet material 10 is removed from the molding die 20, that is, release is performed. Then, the sheets 21 and 22 forming the laminated structure are separated from each other, and human hair or artificial hair is planted on the sheet 21 which serves as the hair dividing base 25. Rw is copied and unnecessary portions are cut off based on the production line Rb to produce a hair splitting portion base 25, and this hair splitting portion base 25 is used for the entire wig including a net base 26 as shown in FIG. Attach it to the hair by gluing or sewing. In addition, the sheet 21 serving as the hair part base 25 is provided with a matting portion 23. Incidentally, the composite sheet material 10 may be applied to the molding die 20 and fixed by appropriate means, and may be heated and softened by the heater 24 to be molded.

As described above, the present embodiment is characterized in that the thermoplastic resin sheet 22 that is different from the sheet 21 is releasably attached under the thermoplastic resin sheet 21 that serves as the hair part base 25 that is the wig base. Since it is the wig base composite sheet material 10 that is different from the conventional case in which the synthetic resin solution is applied multiple times, it is possible to obtain a wig base having a uniform thickness without requiring skill. Corresponding to the items 1 to 7, the same operation and effect as those of the first embodiment can be obtained, and in the case where the sheet material 10 is pressed against the molding die 20 to be molded as shown in FIG. In addition, since it is possible to heat and soften the lower surface side of the sheet material 10, excessive heat is not applied to the sheet 21 serving as the hair dividing portion base 25 at the time of heating, and the sheet 21 serving as the partial base is partially expanded by heating. Cheap without Was a partial hair portion base 25 of the quality can be molded.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0036]

[Effect of device]

 The invention of claim 1 is a composite sheet material for a wig base, wherein a thermoplastic resin sheet different from the thermoplastic resin sheet serving as the wig base is releasably attached, It is possible to provide a composite sheet material for a wig base, which is easy to manufacture and has a uniform film thickness on a molded product.

The invention of claim 2 is characterized in that the different thermoplastic resin sheet has a softening temperature lower than that of the thermoplastic resin sheet serving as the wig base, and the composite sheet material for wig base according to claim 1. Therefore, it is possible to provide a composite sheet material for a wig base in which a wig base can be easily manufactured and a molded product can have a uniform film thickness.

The invention of claim 3 is the composite sheet material for a wig base according to claim 2, characterized in that the thermoplastic resin sheet serving as the wig base is made of a polyurethane resin elastomer, and is excellent in wearing feeling. It is possible to provide a composite sheet material for a wig base, in which a wig base can be easily manufactured and a molded product can have a uniform film thickness.

A fourth aspect of the invention is the composite sheet material for a wig base according to the second aspect, characterized in that the different thermoplastic resin sheets are made of polyethylene. It is possible to provide a composite sheet material for a wig base, which is excellent in accuracy and can obtain a uniform film thickness on a molded product.

The invention of claim 5 is characterized in that the thermoplastic resin sheet as the wig base is made of polyurethane resin elastomer, and the different thermoplastic resin sheet is made of polyethylene. A composite sheet material for a wig base, which is a composite sheet material for a wig, which makes it easy to manufacture a wig base having an excellent wearing feeling, has excellent molding accuracy, and can obtain a uniform film thickness in a molded product.

The invention of claim 6 is a composite sheet material for a wig base according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is provided with a matte portion. It is possible to provide a composite sheet material for a wig base that is easy to obtain, has a uniform film thickness on a molded product, and has a natural appearance.

According to a seventh aspect of the invention, the thermoplastic resin sheet made of polyethylene has a thickness of 0. The composite sheet material for a wig base according to claim 4 or 5, characterized in that the wig base has a good wearing feeling, is easy to manufacture, and has excellent molding accuracy and is suitable for a molded product. It is possible to provide a wig-based composite sheet material capable of obtaining a uniform film thickness.

[Brief description of drawings]

FIG. 1 is a sectional view of a composite sheet material showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a molding apparatus showing a first embodiment of the present invention.

FIG. 3 is a perspective view of a molding apparatus showing a first embodiment of the present invention.

FIG. 4 is a perspective view of a composite sheet material and a molding apparatus showing a first embodiment of the present invention.

FIG. 5 is a cross-sectional view of the molding chamber before heating the composite sheet material according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the molding chamber in the inflated state of the composite sheet material according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view of the molding chamber in a state where the molding die according to the first embodiment of the present invention is lifted and vacuumed.

FIG. 8 is a plan view of a molding die showing a second embodiment of the present invention.

FIG. 9 is a perspective view of a molding die showing a second embodiment of the present invention.

FIG. 10 is a cross-sectional view of the heating process of the composite sheet material showing the second embodiment of the present invention.

FIG. 11 is a perspective view of a composite sheet material according to a second embodiment of the present invention, which is pressed against a molding die.

FIG. 12 is a plan view showing a second embodiment of the present invention with a hair dividing base attached to a net base.

[Explanation of symbols]

 10 Composite sheet material 21 Thermoplastic resin sheet 22 Thermoplastic resin sheet 23 Matte part

Claims (7)

[Scope of utility model registration request] 1. A composite sheet material for a wig base, comprising a thermoplastic resin sheet serving as a wig base, and a thermoplastic resin sheet different from the sheet, which is releasably stuck to the sheet. 2. The composite sheet material for a wig base according to claim 1, wherein the different thermoplastic resin sheets have a softening temperature lower than that of the thermoplastic resin sheet serving as the wig base. 3. The wig base composite sheet material according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is made of a polyurethane resin elastomer. 4. The composite sheet material for a wig base according to claim 2, wherein the different thermoplastic resin sheets are made of polyethylene. 5. The composite sheet material for a wig base according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is made of a polyurethane resin elastomer, and the different thermoplastic resin sheet is made of polyethylene. 6. The wig base composite sheet material according to claim 2, wherein the thermoplastic resin sheet serving as the wig base is provided with a matte portion. 7. The composite sheet material for a wig base according to claim 4, wherein the thickness of the thermoplastic resin sheet made of polyethylene is 0.2 to 0.4 mm.