JPH0523591B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to a special fabric using a fabric made of shape memory filaments.

(Prior art) Traditionally, textiles and knitted fabrics have been made using thermoplastic synthetic fibers, long fibers, short fibers, wool, etc.
It is woven using natural fibers such as cotton. The woven or knitted fabrics are, for example, subjected to piece dyeing, followed by scouring and finishing. Moreover, the refined and finished woven and knitted fabrics are cut into various sewn products.

Among these sewn products, for example, school uniforms and dress shirts, for example, lose their shape and develop wrinkles, especially in the collars and hem openings, as they are worn.

(Problem to be Solved by the Invention) By the way, among the above-mentioned sewn products made of woven and knitted fabrics, for example, school uniforms and dress shirts lose their shape and wrinkle, especially in the collar and cuffs, as they are worn. Therefore, a core material made of plastic is inserted inside to prevent it from losing its shape and wrinkling.

However, there is a problem in that when washing is performed to remove dirt, the core material is deformed and no longer functions to prevent it from losing its shape.

Further, when wrinkles occur, the wrinkles are removed by pressing at high temperature with an iron after washing, which is very time-consuming.

The purpose of this invention is to improve the above-mentioned problems by making a fabric made of woven or knitted fabric into a sewn product, and even if the fabric loses its shape and wrinkles occur during use, it can be easily and easily removed. Our goal is to provide special fabrics that can be removed.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention integrates a fabric made of shape memory filament by inserting it as a core material between ordinary fabric. Made of special fabric.

(Function) By employing the special fabric of this invention, if the special fabric is used for the collar or cuffs of school uniforms or dress shirts, it may lose its shape even when worn.
Even if wrinkles occur, the special fabric itself will return to its original state as the fabric made of shape memory filaments sandwiched between it and the regular fabric will be restored to its original state through low-temperature heat treatment. From the back, deformation and wrinkles are easily and easily removed.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Typical fabrics are, for example, thermoplastic synthetic fibers with a
Warp yarn of about 100 denier polyester fiber,
It is made of plain weave fabric used for the weft. The shape memory filament is a filament made by melt-spinning a shape memory resin such as polynorbornene, and has a denier of about 10 to 100.
A plain woven fabric using shape memory filaments of approximately 10 to 100 deniers for warp and weft yarns is used as a fabric made of shape memory filaments.

The polynorbornene is produced by subjecting ethylene cyclopentadiene to a Deiss-Alder reaction to produce norbornene, and then ring-opening polymerizing the norbornene.

Moreover, the characteristics of this polynorbornene are that it is in the form of a white powder, and 95% of the particles have a particle size of 1 mm or less.
The average size is 0.3 to 0.4 mm. Furthermore, the molecular weight is
3 million or more, the glass transition point is approximately 35℃, and water,
It is insoluble in alcohol, but soluble in aromatic, naphthenic, and paraffinic oils.

Therefore, polynorbornene can be heated to, for example, 150°C.
The shape memory filament can be melt-spun at a temperature of around 10 to 100 deniers to form a shape memory filament, and the shape memory filament can be reheated at a temperature above the glass transition temperature, e.g., at a low temperature of about 40 to 60 degrees Celsius. It restores the shape.

Referring to FIG. 1, a fabric 5 made of shape memory filament is sandwiched between the above-mentioned normal fabric 1 and normal fabric 3 in the shape of a sandwich sandwich. Moreover, the special fabric 9 can be obtained by sewing both sides with the sewing thread 7.

This special fabric 9 is used, for example, for the collar and cuffs of school uniforms and shirts, and the school uniforms and shirts are sewn. When you wear school uniforms or shirts, the collar and cuffs in particular get dirty, lose their shape, and wrinkle. For this purpose, the fabric 5 made of shape memory filaments is washed to remove dirt and heat treated at a temperature of about 40°C.
has the property of recovering to its original state, so the special fabric 9 forming the collar and cuffs is restored to its original state, and deformation and wrinkles can be easily removed.

If your school uniform or dress shirt becomes dirty and loses its shape or wrinkles, you can remove the shape and wrinkles by simply drying it in the sun after washing in summer.

FIG. 2 shows another embodiment of the special fabric 9 in place of the one shown in FIG. In Fig. 2, a normal fabric 1 is folded, a fabric 5 made of shape memory filament is sandwiched between the normal fabric 1, and the right end of the normal fabric 1 is sewn with a sewing thread 7. Dough 9 is obtained. Even in this case, the same effect as the special fabric 9 described in FIG. 1 can be achieved.

Note that this invention is not limited to the embodiments described above, but can be implemented in other forms by making appropriate changes. For example, normal fabrics 1 and 3 have been explained as plain woven fabrics made of polyester fibers, but other fabrics such as thermoplastic fibers such as nylon and acrylic, wool,
It may be made of natural fibers such as cotton or silk, or it may be a twill weave, circular knit, or warp knit fabric instead of plain weave.

The fabric 5 made of shape memory filaments may be not only a plain weave but also a twill weave or a knitted fabric in the same way as the normal fabrics 1 and 3, but considering that this fabric 5 simply has the property of recovering its shape, A dense plain knit fabric is preferred. Further, the shape memory filament may be a thread obtained by cutting a shape memory alloy into pieces.

Furthermore, a fabric 5 made of shape memory filament is sandwiched between the regular fabrics 1 and 3 and sewn together with a sewing thread 7 to make them integral, but the fabric 5 may be integrated with an adhesive instead of the sewing thread 7. .

[Effects of the Invention] As can be understood from the description of the embodiments above, according to the present invention, a fabric made of shape memory filaments is interposed as a core material between ordinary fabric and integrated. Because it is a special fabric, if this special fabric is used for the collars and cuffs of school uniforms or shirts, even if it loses its shape or wrinkles when worn, it can be treated with low-temperature heat treatment to make it look like normal fabric. Since the fabric made of shape memory filaments sandwiched between the two is restored to its original state, the special fabric itself also returns to its original state, and deformation and wrinkles can be easily and easily removed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a special fabric according to an embodiment of the present invention, and FIG. 2 is a sectional view of another embodiment in place of FIG. 1. 1, 3... Normal fabric, 5... Fabric made of shape memory filament, 7... Sewing thread, 9... Special fabric.

Claims (1)

[Claims] 1. A special fabric that is made by inserting a shape-memory filament fabric as a core material into a regular fabric.