JP3378669B2 - Fiber composite - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber composite for clothing, and more particularly to a fiber composite used for innerwear or parts of outerwear materials for women.

[0002]

2. Description of the Related Art Heretofore, the parts have been required to have at least stretchability and shape retention in order to beautifully shape the body and maintain stability when mounted. Therefore, a so-called fiber composite, which is a composite of different fiber forms, is used. A fiber composite is mainly a laminate of a stretchable fiber cloth body made of a thin knitted fabric and a non-woven cloth body having a three-dimensional structure having shape retention and cushioning properties, and the above innerwear or female outer material. The above condition is satisfied. However, in such a fiber composite, since the fiber cloth body and the non-woven cloth constituting the fiber composite body are usually made of synthetic fiber in view of shape retention, stretchability, etc. Many are inferior in sex.

Therefore, for example, when a foundation (a kind of innerwear) made of a fiber composite is attached, sweat and moisture diverging from the skin surface are once absorbed and held by the fiber cloth body placed on the skin side. After that, it is absorbed by the non-woven fabric and becomes wet. Therefore, the humidity inside the outer jacket on the upper side of the foundation is extremely increased, resulting in a significant discomfort for the entire kimono. This discomfort during wearing is also due to the fact that when sweat or the like adheres to the surface of the fiber fabric body as water droplets, it immediately permeates and diffuses into the fiber fabric body, resulting in a rapid increase in the wetted area. Has been confirmed from the analysis results. That is, one of the main causes of discomfort is that the fiber composite does not have sufficient water absorption.

Therefore, the following methods have been developed. (1) A fiber having a high water absorbing property, for example, a natural fiber is used for at least a part of the fiber composite. (2) When laminating the fiber cloth body and the non-woven fabric itself, a binder containing a drug having a water absorbing property (for example, polyvinyl alcohol, sodium polyacrylate, etc.) is used. (3) A water absorbing agent is applied to the fiber cloth body and / or the non-woven fabric body of the fiber composite. Etc., and some of them are currently in the implementation stage. However, although there is an effect of improving water absorption, the effect of improving hygroscopicity and durability against washing cannot always be expected, and a sufficiently satisfactory effect has not yet been obtained.

[0005]

DISCLOSURE OF THE INVENTION The present invention is intended for clothing, particularly in innerwear or outerwear for women,
It is intended to provide a fiber composite which, when worn on the body, has a remarkable effect on comfort, is highly durable, and is excellent in water absorption and hygroscopicity.

[0006]

SUMMARY OF THE INVENTION The inventors of the present invention have, as a result, earnestly studied for such a technical problem, and as a result, add a water absorbing agent to a conventional fiber composite. By doing so, it was discovered that when moisture is absorbed from the fiber fabric body to the non-woven fabric through the joint portion, there is a difference in the degree of moisture absorption between the layers, and the moisture is not smoothly absorbed. And it was found that by using a natural protein, preferably sericin, the degree of moisture absorption becomes constant in each layer, and in addition, durability can be strengthened,
The present invention has been completed based on this finding.

That is, the present invention provides (1) a fiber composite in which a fibrous fabric body and a non-woven fabric are laminated, wherein the fibrous fabric body and / or the non-woven fabric body contains natural protein via a synthetic resin agent, The fiber composite has a high water-absorbing property and a high hygroscopic property in which the body and the non-woven body are joined by a binder containing a natural protein.

And (2), the natural protein contained in the fiber cloth body is a fiber composite body which is sericin having a weight average molecular weight of 5,000 to 10,000. Further, (3), the natural protein contained in the binder has a weight average molecular weight of 10,000 to 50,000.
It exists in a fiber complex that is sericin. and again,
(4), the attached amount of natural protein contained in the fiber fabric body is 0.
It exists in a fiber composite that is 2-3% owf. Also, (5), the natural protein contained in the binder is one of the binders.
-20% by weight in the fiber composite.

The structure of the present invention will be described below before entering a specific embodiment. As a method for incorporating the natural protein into the fiber cloth body and / or the non-woven fabric body according to the present invention through the synthetic resin agent, the fiber cloth body and the non-woven body body are previously dipped in a treatment liquid containing the synthetic resin agent containing the natural protein. After that, water is squeezed to a specified amount of adhesion, and then heat treatment is performed. The treatment liquid can be uniformly applied to the fiber fabric body and the non-woven fabric body by using a spray, a gravure coater, a roll coater, or the like. Any method may be used as long as it is one.

The textile fabric used in the present invention can be widely used in woven fabrics, knitted fabrics, lace fabrics, etc., but relatively thin knitted fabrics and lace fabrics having good elasticity and elasticity are preferred.
The material of the fibers constituting the fiber fabric body is not limited to the kind, but a blended fabric in which synthetic fibers contain highly hydrophilic fibers (such as cotton and rayon) is preferable in order to obtain comfortable wearability. However, from the viewpoint of ensuring the morphological stability after repeated washing, a polyamide-based material,
Fibers such as polyester fibers are preferred. As a non-woven fabric,
It is sufficient as long as it has a function of retaining the shape of the three-dimensional structure, and in that sense, a felt or the like can be adopted. Further, as the fibers constituting the non-woven fabric, it is preferable to use the same synthetic fibers as those of the above-mentioned fibrous fabric.

The synthetic resin agent used in the method of incorporating the natural protein into the fiber cloth body and / or the non-woven body through the synthetic resin agent has a function of fixing the natural protein to the fiber cloth body or the non-woven body. Any material can be applied as long as the texture is not impaired, but from the viewpoint of durability, acrylic, urethane, polyester, epoxy, or other synthetic resin is preferable. Next, as a binder used for joining the fiber cloth body and the non-woven body, a vinyl acetate-based binder from the viewpoint of the texture of the resulting composite, the adhesion of natural protein to fibers, and the durability after washing,
Acrylic and urethane resins are preferred.

Examples of the natural protein substance in the present invention include soybean protein, casein, gelatin, collagen, fibroin, sericin, etc. Essentially any protein can be used, but it has a high molecular weight and a high hydrophilicity. Sericin is preferable because it is soluble in cold water, has good compatibility with the binder, and the aqueous solution does not gel and is easy to handle.
In addition to natural proteins, natural polysaccharides such as chitosan are used to impart water absorbency and hygroscopicity.However, if the molecular weight is large, it is extremely difficult to dissolve in water, and if it is forcibly dissolved, it will become extremely extreme. There is a difficulty in adoption because of an increase in viscosity. In this respect, natural protein has an advantage that it is relatively soluble in water and an aqueous solution having a low viscosity can be obtained.

Sericin which is a natural protein attached to a fiber cloth body and / or a non-woven fabric body has a relatively low molecular weight of 5,000 to 10,000 (in this case, the molecular weight means a weight average molecular weight. In this case, the weight average molecular weight is used. Its molecular weight is 5,
If it is less than 000, the effect of improving water absorption is insufficient. If the molecular weight is 10,000 or more, the texture of the treated fabric will be hardened, which is not suitable. The attached amount of sericin here is 0.2 to 3% owf (vs. fiber weight),
It is preferably 0.5 to 1.5%. Adhesion amount is 0.2% owf
If it is smaller than 3%, the effect of improving water absorption is insufficient, and 3% o
If it is larger than wf, the texture is hardened, which is not preferable.

As sericin which is a natural protein contained in the binder, 10,000 to 50,000 having a relatively high molecular weight is used.
However, if it is 10,000 or less, sufficient durability cannot be obtained, and if it is 50,000 or more, the binding force between the cloth material and the non-woven material is weakened, which is not suitable. The amount of sericin added to the binder is preferably 1 to 5%, and if 1% or less, the water absorption effect cannot be expected, and if it is 5% or more, the practical adhesive effect of the binder cannot be obtained. The coating amount of the binder is preferably 5 to 50 g / m ² (dry state) from the viewpoint of durability of the binding force and the texture of the fiber composite.

The two-layer fiber composite (FIG. 1) composed of the fiber cloth body and the non-woven body described above has, for example, the same binder as described above on the non-woven surface of the obtained fiber composite. It is sufficiently possible to use it to form a three-layer composite by further bonding and laminating a fiber fabric body (FIG. 2), and further repeating it to form a multilayer fiber composite.

[0016]

As described above, the fiber composite of the present invention is a natural material which exhibits remarkable effects of water absorption and hygroscopicity in the binder used when the fiber cloth body and the non-woven fabric are laminated and composited. Since it contains a protein, preferably sericin, moisture such as sweat adhering to the fiber fabric body is absorbed evenly into the non-woven material through the natural protein in the binder, preferably sericin, in sequence. . Therefore, when it is used as innerwear, the wetting feeling and stickiness of the fiber cloth body to the skin is drastically reduced, and at the same time, the moisture absorbed by the three-dimensional nonwoven fabric material is sequentially diffused to the outside. Further, the excellent water absorption and hygroscopicity of the fiber composite are hardly deteriorated by repeated washing.

[0017]

[Example 1]

Polycotton fiber (6-nylon) 100% tricot fabric (area weight 98g / m ² ) and polyester fiber 100
% Non-woven fabric (area weight 57 g / m ² , apparent thickness 3 mm) and an aqueous solution consisting of the following formulation (A1), and the excess treatment liquid was immediately removed by mangle. After further drying at 80 ° C. for 3 minutes, heat treatment was performed at 150 ° C. for 2 minutes.

Formulation (A1) Epolite 400E (epoxy resin, Kyoeisha fat and oil) 2.0% A-121X (catalyst, Kyoeisha fat and oil) 0.7% Sericin (weight average molecular weight 6,000) 4.0% Next, the following formulation (B1) is used. After applying an emulsifying binder to one side of the non-woven fabric obtained above using a roll coater at 23 g / m ² (dry state), the tricot base obtained in the same manner is overlaid and gently pressed at 90 ° C. And dried for 3 minutes to obtain a two-layer fiber composite (a).

Formulation (B1) Hydran HW311 (urethane type emulsion resin, Dainippon Ink Industries) 200 g Percostat CR5L (catalyst, Dainippon Ink Industries) 4 g Boncoat HV (thickener, Dainippon Ink Industries) 50.7 g Sericin (Weight average molecular weight 20,000) 2 g 25% aqueous ammonia solution 7.2 g By the same manner as above, sericin (weight average molecular weight 6,000) of the formula (A1) was set to 2.0% to obtain another two-layer fiber composite in the same manner (see ).

Comparative Example 1 A two-layer fiber composite was obtained in the same manner as in Example 1, except that the tricot fabric and the nonwoven fabric were not treated with the formulation (A1) (a). In Example 1, the treatment with the formulation (A1) was omitted for the tricot fabric and the non-woven fabric, and the sericin (weight average molecular weight 2) of the formulation (B1) was omitted.
It was treated with an aqueous solution containing no (000,000) to obtain a two-layer fiber composite (b).

Example 2 A half tricot fabric (unit weight: 90 g / m ² ) made of 100% polyester fiber, and a non-woven fabric (unit weight: 57 g / m ² ,
(Apparent thickness 3 mm) was immersed in an aqueous solution having the following formulation (A2), immediately saturated and steamed at 100 ° C. for 10 minutes, and then heat-treated.

Formulation (A2) NK ester 23G (polyethylene glycol # 1000 dimethacrylate, Shin-Nakamura Chemicals) 5.0% potassium persulfate 0.1% acetic acid 0.05% sericin (weight average molecular weight 6,000) 4.0% Next, the formulation of Example 1 above. A two-layer fiber composite was obtained in the same manner as in Example 1 by using the emulsifying binder composed of (B1) (a). In the same manner as above, a two-layer fiber composite was separately obtained by using the sericin (weight average molecular weight 6,000) of the formulation (A2) at 2.0% (B).

Comparative Example 2 A two-layer fiber composite was obtained in the same manner as in Example 2, except that the tricot fabric and the nonwoven fabric were not treated with the formulation (A2) (a). In Example 2, the treatment with the formulation (A2) was omitted for the tricot fabric and the non-woven fabric, and sericin (weight average molecular weight 20,0) of the formulation (B1) was omitted.
It was treated with an aqueous solution containing no (00) to obtain a two-layer fiber composite (b).

Example 3 A half tricot fabric (unit weight: 90 g / m ² ) made of 100% polyester fiber, and a non-woven fabric (unit weight: 57 g / m ² ,
An apparent thickness of 3 mm) was immersed in an aqueous solution of the following formulation (A3), immediately saturated with steam at 100 ° C. for 10 minutes, and then heat-treated.

Formulation (A3) NK ester 23G (polyethylene glycol # 1000 dimethacrylate, Shin-Nakamura Chemical) 5.0% potassium persulfate 0.1% acetic acid 0.05% sericin (weight average molecular weight 4,000) 4.0% The following formulation (B2) 23 g / m ² (dry state) of the emulsified binder consisting of the above obtained non-woven fabric on one side using a roll coater, and the tricot fabric obtained in the same manner is overlaid and lightly pressed. It was dried at 90 ° C. for 3 minutes to obtain a two-layer fiber composite.

Formulation (B2) Hydran HW311 (Urethane emulsifying resin, Dainippon Ink Industries) 200g Percostat CR5L (catalyst, Dainippon Ink Industries) 4g Boncoat HV (thickener, Dainippon Ink Industries) 50.7g Sericin (Weight average molecular weight 40,000) 2 g 25% aqueous ammonia solution 7.2 g By the above-mentioned method, sericin (weight average molecular weight 4,000) of the formula (A3) was adjusted to 2.0% to obtain another two-layer fiber composite in the same manner ( B).

Comparative Example 3 A two-layer fiber composite was obtained in the same manner as in Example 3, except that the tricot fabric and the nonwoven fabric were not treated with the formulation (A3) (a). In Example 3, the treatment with the formulation (A3) was omitted for the tricot fabric and the nonwoven fabric, and sericin (weight average molecular weight 40,0) of the formulation (B2) was omitted.
It was treated with an aqueous solution containing no (00) to obtain a two-layer fiber composite (b).

Example 4 A half tricot fabric (unit weight: 90 g / m ² ) made of 100% polyester fiber, and a non-woven fabric (unit weight: 57 g / m ² ,
An apparent thickness of 3 mm) was immersed in an aqueous solution having the following formulation ( A4 ), immediately saturated and steamed at 100 ° C. for 10 minutes, and then heat-treated.

Formulation (A4) NK ester 23G (polyethylene glycol # 1000 dimethacrylate, Shin Nakamura Chemical) 5.0% potassium persulfate 0.1% acetic acid 0.05% sericin (weight average molecular weight 6,000) 2.0% The following formulation (B1) 23 g / m ² (dry state) of the emulsified binder consisting of the above obtained non-woven fabric on one side using a roll coater, and the tricot fabric obtained in the same manner is overlaid and lightly pressed. It was dried at 90 ° C. for 3 minutes to obtain a two-layer fiber composite.

Formulation (B1 ) Hydran HW311 (urethane emulsion resin, Dainippon Ink Industries) 200g Percostat CR5L (catalyst, Dainippon Ink Industries) 4g Boncoat HV (thickener, Dainippon Ink Industries) 50.7g Sericin (Weight average molecular weight 20,000) 2g 25% aqueous ammonia solution 7.2g

Comparative Example 4 (a) In Example 4, the half tricot fabric and the non-woven fabric were treated with the formulation ( A4 ) separately. In the case of the half tricot fabric, sericin was used as the weight average molecular weight of 3,000, In the case of a non-woven fabric, sericin had a weight average molecular weight of 6,000. The subsequent treatment was the same as that in Example 4, and it was decided to use the formulation (B1). (B) In Example 4, the half tricot material and the non-woven fabric were separately treated with the formulation ( A4 ). At that time, in the case of the half tricot material, the weight average molecular weight was 30,000, and in the case of the non-woven fabric, sericin was the weight average. The molecular weight was 6,000. The subsequent treatment was the same as that in Example 4, and it was decided to use the formulation (B1). (C) The procedure of Example 4 was repeated, except that the treatment of the formulation (B1) was changed to sericin (weight average molecular weight: 5,000). (D) In Example 4, except that the treatment of the formulation (B1) was sericin (weight average molecular weight 70,000), the same as Example 4.

The performance evaluation results of the fiber composites in Examples 1 to 3 and Comparative Examples 1 to 3 are shown in Table 1.

From these results, it can be said that the addition of sericin to the binder is effective for improving the water absorption of the fiber composite, and the water absorption is improved. Further, it is found that the addition of sericin to the cloth stuck to the non-woven fabric further improves the water absorption, which is the most preferable.

Table 2 shows the results of performance evaluation in Example 4 and Comparative Example 4.

From these results, in the case of sericin which is fixed to the fiber cloth, the one having a relatively low molecular weight is not sufficient in the effect of improving the water absorption, and when the molecular weight is too large, the texture is hardened, which is not preferable. I understand. In the case of sericin contained in the binder, the washing durability is insufficient if it has a relatively low molecular weight, and if the molecular weight is too large, the washing durability is deteriorated, which is not preferable.

[0036]

EFFECT OF THE INVENTION The fiber composite according to the present invention has a soft texture, moderate tension, excellent water absorbency and hygroscopicity, and durability after repeated washing.

[0037]

[Table 1]

[0038]

[Table 2]

[Brief description of drawings]

FIG. 1 shows a fiber cloth body 1 and a non-woven body body 2 with a binder 3
FIG. 3 is a schematic cross-sectional view showing a two-layer fiber composite A that is laminated with a layer interposed therebetween.

FIG. 2 is a schematic cross-sectional view showing a three-layer fiber composite B in which another fiber cloth material 4 is laminated on the nonwoven fabric body 2.

[Explanation of symbols]

1 ... Fiber cloth 2 ... Nonwoven fabric 3 ... Binder 4 ... Another fiber cloth material 5 ... Binder A, B ... Fiber composite

Front Page Continuation (72) Inventor Fuwa Junsei, 1-10-1, Moya, Fukui City, Fukui Prefecture, Seiren Co., Ltd. (72) Inventor, Norimasa Mizuta, 68 Kiyo-cho, Nishi-ku, Nagoya City, Aichi Prefecture (56) References JP-A-6-198800 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B32B 1/00-35/00 D06M 15/15

Claims (5)

(57) [Claims] 1. A fiber composite body in which a fiber cloth body and a non-woven body are laminated, and a fiber cloth body and / or a non-woven body is synthesized.
A fiber composite having a high water absorbency and a high hygroscopicity , which comprises a natural protein via a resin agent, and a fiber cloth body and a non-woven body are bonded by a binder containing a natural protein. 2. A fiber composite according to claim 1, wherein the natural proteins contained in the fiber fabric body is characterized in that the sericin a weight average molecular weight of 5,000 to 10,000. 3. A fiber composite according to claim 1, wherein the natural proteins contained in the binder is sericin a weight average molecular weight from 10,000 to 50,000. 4. A fiber composite according to claim 1, wherein the deposition amount of the native protein contained in the fiber fabric body is characterized by a 0.2 to 3% owf. 5. The natural protein contained in the binder is one of the binders.
The fiber composite according to claim 1 , wherein the fiber composite is about 20% by weight.