JPH076132B2 - Special fabric - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention is directed to a textile treatment such as a woven fabric, a knitted fabric, or Japanese paper on which a gold process is applied, and further, a cloth such as a film is subjected to a resin process treatment. Regarding the special fabric that was applied.

(Prior Art) Conventionally, it is known that woven fabrics, knitted fabrics, and the like as fabrics are subjected to various resin processing treatments in a scouring and finishing step after post-dyeing. The resin processing is applied to the cloth for the purpose of, for example, waterproofing, antifouling, wrinkling, hygiene, or improving the feeling.

(Problems to be solved by the invention) By the way, among the above-mentioned conventional techniques, resin processing using a thermosetting resin such as urea resin, melamine resin, or reaction resin is performed for the purpose of anti-wrinkle processing.

However, when used as a secondary product by cutting even a fabric that has been subjected to a wrinkle-proofing treatment with a thermosetting resin as a fabric in this way, for example, when worn as a belt or a shirt, The effect of processing weakens and wrinkles and creases inevitably occur.

When wrinkles or folds occur, after washing, in the case of a shirt or the like, the iron is subjected to heat treatment at a high temperature of 120 ° C. or higher to remove the wrinkles or folds. In order to remove these wrinkles and creases, it is necessary to carry out heat treatment at a high temperature of, for example, 120 ° C. or more after washing each time, which is very troublesome and there is a problem that wrinkles and folds cannot be completely removed. There is.

Also, in the case of a belt, it is not possible to heat it by washing to remove dirt or to remove wrinkles and folds, for example, at a high temperature of 120 ° C or higher, so just pay attention to handling,
There is a problem that wrinkles and folds cannot be removed.

The object of the present invention is to improve the above-mentioned problems, by applying a heat treatment that does not require a conventional high-temperature treatment such as wrinkles and creases that occur when used conventionally, a special material that can be easily and easily removed. To provide.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a woven fabric, a knitted fabric,
A special fabric whose shape is restored to the original state by post-heat treatment by impregnating the texture or gap of the fabric such as paper or film with the particulate shape memory resin dissolved in the solvent by the impregnation means. Is.

(Operation) By adopting the special fabric of the present invention, when the fabric such as woven fabric, knitted fabric, paper material or film is dyed, handled after scouring, or when the fabric is cut into a secondary product, or At least wrinkles and creases that occur when worn are removed by performing post-heat treatment that is not a conventional high-temperature treatment, because the fabric itself returns to its original state.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

The special fabric according to the present invention comprises a fabric itself such as a woven fabric, a knitted fabric, a paper material or a film, and a shape memory resin impregnated into the texture or gaps of the fabric. With shape memory resin, the shape is memorized at a certain temperature,
It means a resin whose shape is restored to the original state by performing a post heat treatment at a certain temperature. Moreover, as a shape memory resin, a cross-linked product of crystalline polyolefin has been used so far,
Crosslinked products of crystalline trans-polyisoprene, cross-linked products of crystalline trans-polybutadiene, and polynorbornene are known. In the present embodiment, polynorbornene will be described as an example. For example, as shown in FIG. 1, a plain weave woven fabric 5 composed of a warp yarn 1 of a thermoplastic filament yarn and a weft yarn 3 of a silk yarn is impregnated with, for example, polynorbornene 7 as a shape memory resin. It is a thing.

The warp yarn 1 and the weft yarn 3 are used not only in the combination of thermoplastic filament yarn and silk yarn, but also in various kinds of cotton, wool,
Hemp, rayon, acetate, stretchable yarn or foil yarn, for example, core yarn, is used by appropriately combining foil yarn in which shredded yarn such as Japanese paper or film is processed with gold. The weave of the woven fabric is not limited to plain plain weave, but may be satin, diagonal print, double weave, or variable weave.

In addition to textiles other than textiles, Japanese paper such as hand-painted, transferred, and engraved paper, or a paper material that has been processed with gold on a film,
It may be a film or the like, and in that case, the various types of yarns as described above are used.

For example, polynorbornene 7 as a shape memory resin is obtained by subjecting ethylenecyclopentadiene to a diars-Alder reaction to give norbornene and subjecting the norbornene to ring-opening polymerization.

Moreover, the characteristic of this polynorbornene 7 is that it is in the shape of a white powder, and the particle size is 1 mm or less 95%, 0.3-0.4 m on average.
m. Furthermore, it has a molecular weight of 3 million or more, a glass transition temperature of about 35 ° C., is insoluble in water and alcohol, and has the property of dissolving aromatic, naphthenic, and paraffinic oils. That is, the polynorbornene 7 is shaped at a temperature above the glass transition point, for example, around 150 ° C. (a temperature at which it can be deformed) and retains it, and is fixed below the glass transition point, for example, at room temperature. The shape is recovered at the above reheating temperature, for example, about 40 to 60 ° C.

Therefore, for example, a warp yarn 1 of a thermoplastic filament yarn
And a woven fabric 5 woven by a plain weave structure with a weft yarn 3 of silk yarn
1 is immersed in a solution of shape-memory resin, for example, polynorbornene 7 on particles, in an aromatic oil at a temperature of about 150 ° C. for about 5 minutes, dried and cooled at room temperature. As a result, a fabric in which the structure or gap of the woven fabric 5 is impregnated with, for example, the particulate polynorbornene 7 as the shape memory resin as shown in FIG.

FIG. 2 shows a schematic processing step of impregnating the woven fabric 5 as the special fabric with, for example, polynorbornene 7 as the shape memory resin. In FIG. 2, rollers 9A, 9B
Is a feed roller on which the wound fabric 5 is placed. The container 11 contains, for example, a solution of, for example, particulate polynorbornene 7 as a shape memory resin mixed and stirred in an aromatic oil and heated to about 150 to 160 ° C. to be stored. The roller 13 is for immersing the fabric 5 in the solution.

The pair of rollers 15A and 15B are used to squeeze the solution immersed in the woven fabric 5 by a high pressure mangle at an appropriate percentage. The three rollers 17A, 17B and 17C are heating rollers heated to about 90 ° C. for drying the squeezed fabric 5, and the roller 19 is a winding roller.

With the above configuration, the fabric 5 is sent out by the rollers 9A and 9B and sent into the container 11. In the container 11, the woven fabric 5 is obtained by mixing and stirring an aromatic oil, for example, particulate polynorbornene 7 as a shape memory resin, and dissolving the mixture, for example, about 150 to 160 ° C.
It is dipped in the solution for about 5 minutes.

A woven fabric impregnated with, for example, particulate polynorbornene 7 as a shape memory resin is squeezed by a high pressure mangle roller 15A, 15B at an appropriate percentage, and further heated by about 90 ° C. by a three-stage roller 17A, 17B, 17C. It is dried. The dried woven fabric is cooled at room temperature and taken up by a take-up roller 19, for example, a particulate polynorbornene 7 as a shape memory resin.
A woven fabric 5 impregnated with is obtained. The resulting woven fabric 5 has a beautiful appearance, toughness, and excellent durability.

Instead of immersing the woven fabric 5 in the container 11 in a solution in which a shape memory resin such as a particulate polynorbornene 7 is dissolved in an aromatic oil, for example, a particle such as a shape memory resin in an aromatic oil is used. A solution in which the polynorbornene 7 in the form of a mixture is placed in a spray device and sprayed from the spray device to impregnate the tissue or gaps of the fabric 5 with, for example, polynorbornene 7 as a shape memory resin, and heat fixing-cooling is performed. May be. Further, it is also possible to sufficiently immerse the cloth into which the shape memory resin is dissolved, or to impregnate the cloth with vacuum vapor deposition.

The woven fabric impregnated with, for example, polynorbornene as the shape memory resin thus obtained is particularly bent during the process of becoming a secondary product, cutting and using as a secondary product, or bending when worn. Even if wrinkles or creases occur, they can be restored to their original state by post-treatment of, for example, about 40 to 60 ° C, so wrinkles and folds can be easily and easily removed. .

Instead of the woven fabric, other woven fabric such as woven fabric or paper or film may be used. In particular, as a secondary product, it is remarkably effective when applied to a band or a shirt where wrinkles and folds are likely to occur.

The shape memory resin is impregnated into the texture or gaps of the dough, so that the impregnation of excess material is blocked and the dough does not easily get dirty, and the surface of the dough is protected. It is difficult to get streaks that can be formed when rubbing. Even if some stains or chalk marks are generated, they can be easily removed by post heat treatment due to the recovery function of the shape memory resin.

Further, since the shape memory resin is impregnated into the fabric or the particles in the form of particles and is not applied in the form of a film, the breathability is ensured as in the case of the conventional fabric, and the surface of the fabric is, for example, stiff. It does not become stiff and retains the texture close to the original fabric. Further, when the special fabric is a woven or knitted fabric, the periphery and the tip of the constituent yarns are protected by the shape memory resin, and the fraying of the hollow can be prevented. Shape memory resins are soluble in solvents and can be blended with other resins.

As secondary products, it can be applied to car seats and seat covers of industrial materials other than clothing, carpets for interiors, curtains, etc., and can be applied to a wide range of applications.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, wrinkles, creases, etc. generated on the cloth can be removed even at a temperature of 0 ° C or lower.
In the present embodiment, polynorbornene was used as an example of the shape memory resin, but the known cross-linked crystalline olefins other than polynorbornene were dissolved in a solvent to impregnate the dough. It is possible. As a means for the post-heat treatment, a steam iron for general household use can be used easily and easily. It is also possible to use a secondary product by impregnating the cloth with a shape memory resin. Further, in the present embodiment, the shape-memory resin has been described as being in the form of particles, but the term “particulates” includes those in the form of pellets.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, as described in the claims, the texture or gap of the fabric such as the woven fabric, the knitted fabric, the paper material or the film. By impregnating the particulate shape memory resin dissolved in a solvent with an impregnating means, a special dough that is obtained by post heat treatment to be restored to its original state in shape is a special dough. At least the wrinkles and creases that occur when the product is made into a product, cut into a secondary product, and is used or worn are subjected to a conventional post-heat treatment that is not at high temperature. As a result, it is restored to the original state, so that it is possible to remove easily and easily.

The special fabric of this invention is simply made to be impregnated with a shape memory resin in the texture or gaps of the fabric, so that it can be easily manufactured, has a beautiful appearance, is tough, and has excellent durability. is there.

Since the texture or resin of the cloth is impregnated with the shape memory resin, the impregnation of the excess material is hindered, the cloth is not easily soiled, and the surface of the cloth is protected, and the chalk mark is hard to appear. Even if some dirt or chalk marks are generated, it can be easily removed by post heat treatment due to the recovery function of the shape memory resin.

Further, since the shape memory resin is impregnated into the texture or the gaps of the fabric in the form of particles and is not applied in the form of a film, the breathability is secured as in the case of the conventional fabric, and the surface of the fabric is, for example, stiff. It does not become stiff and retains the texture close to the original fabric. Further, when the special fabric is a woven or knitted fabric, the periphery and the tip of the constituent yarns are protected by the shape memory resin, and the fraying of the hollow can be prevented. Shape memory resins are soluble in solvents and can be blended with other resins.

[Brief description of drawings]

FIG. 1 is a schematic view of a woven fabric as a special cloth which is an embodiment of the present invention, and FIG. 2 is a schematic processing step diagram for obtaining the special cloth of the present invention. 1 ... Warp yarn, 3 ... Weft yarn 5 ... Woven fabric, 7 ... Polynorbornene

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Shohei Ohira, 43, Shichishinishinanmachi, Kita-ku, Kyoto-shi, Kyoto (56) Reference JP-A-61-252353 (JP, A)

Claims (1)

[Claims] 1. A structure or gap of a cloth such as a woven fabric, a knitted fabric, a paper fabric or a film is impregnated with a particulate shape memory resin dissolved in a solvent by an impregnation means,
Special fabric characterized by obtaining a special fabric whose shape is restored to the original state by post heat treatment.