JPH08158207A - Production of texture-fixed fabric - Google Patents

Abstract

PURPOSE: To obtain woven fabric retaining an intact clear texture just after weaving without disturbing the arrangement of warp and weft yarns by fixing the texture of the woven fabric in a state in process on a loom. CONSTITUTION: Warp yarns 2 and a weft yarn 5 comprising highly heat-resistant fibers are set in a loom to weave woven fabric 7. A resin 9 is then applied to the woven fabric 7 after the weaving between a cloth fell 6 and a winding part 12 and the resin is then solidified to bind the warp yarns to the weft yarn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a woven fabric, and more particularly to a method for producing a woven fabric in which warp yarns and weft yarns made of highly heat resistant fibers are attached to each other.

[0002]

2. Description of the Related Art High strength such as glass fiber and carbon fiber,
Woven fabrics composed of highly heat-resistant fibers are often used as reinforcing materials for plastics and concrete. When using woven fabrics as reinforcing materials, in order to maximize their physical properties, warp and weft It is required that the texture is stable without any misalignment in the arrangement of and.

In order to meet this demand, conventionally, after weaving, the wound fabric is transferred to a processing machine, stretched and tentered with a clip or a pin tenter, and a resin is applied to maintain warp and weft yarns. The method of tying together was common.

However, according to this method, when the loom is transferred from the loom to the processing machine, creases and bending of the cloth are likely to occur, and in the loom, the warp and the weft are orthogonal to each other and the cloth is maintained in a straight state. There was a problem that it was difficult.
Further, there may be a case in which a fabric rewinding process is inserted between the weaving process and the filling process, in which case the work becomes complicated and the cost becomes disadvantageous.

On the other hand, as a method of sealing the woven fabric in the state where it is set on the loom, a yarn obtained by winding a thermoplastic low-melting polymer yarn around the reinforcing fiber by using untwisting or heating the yarn is used. Reinforcing fibers of warp and weft by weaving a woven fabric using fibers formed by fusing with reinforcing fibers as warp and weft, and then heating the woven fabric between the cloth fell and the winding portion to melt the low melting point polymer. A method of binding each other (Japanese Patent Laid-Open No. 62-6932), in which at least a part of the warp yarns are prepared by aligning the co-polymerized nylon yarns, and at the same time, the weft yarns are supplied to the co-polymerized nylon yarns and woven. After making the fabric, heat the fabric between the cloth fell and the winding section,
A method of melting a copolymer nylon yarn to bind reinforcing fibers of a warp and a weft (JP-A-61-34244).
Etc. are known.

However, all of the methods disclosed in the above publications are methods in which low melting point polymer yarns are heated and melted and point-bonded at the intersections of the warp yarns and the weft yarns to stop them, and thus the fibers constituting the woven fabric. Since the resin is not coated with resin, there is a problem that the sealing effect is small.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above problems of the conventional method, to obtain a sufficient sealing effect, and to prevent the occurrence of bending and creasing of the cloth. In order to provide the manufacturing method of.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to produce a woven fabric made of high heat resistant fibers using a loom,
After weaving the high heat resistant fiber into a woven fabric, applying a resin to the woven fabric after the weaving and the winding portion to solidify the resin and bind the warp and the weft. It is achieved by a method for producing a sealing fabric characterized by the following.

The high heat resistant fibers used in the present invention include, for example, inorganic fibers such as glass fibers, carbon fibers and alumina fibers, and organic fibers such as aramid fibers, and the like. At that time, the type is not particularly limited as long as it does not substantially cause thermal expansion, thermal contraction, remarkable strength deterioration, discoloration, etc., and two or more kinds of fibers may be used in combination. Further, the fiber diameter, count, twist number, etc. of the high heat resistant fiber used are not particularly limited.

The woven fabric structure woven using the above high heat resistant fibers is not particularly limited, and examples thereof include plain weave, leno weave, satin weave, and twill weave, and their basis weight and weave density are also particularly preferable. It is not limited.

Examples of the resin applied to the woven fabric after weaving include a hot melt resin used by heating and melting, an emulsion resin in which resin fine particles are dispersed in a liquid, a resin solution dissolved in an organic solvent, and the like. However, a material that requires a drying furnace and takes a long time to solidify is not preferable because it tends to be misaligned before it is sufficiently blocked. In the present invention, a hot-melt resin that does not require a drying oven and can be solidified in a short time is suitable. The hot melt resin is preferably a thermoplastic resin that is solid at room temperature, such as a polyamide resin, an acrylic resin, or an EVA resin, but may be a thermosetting resin that is solid at room temperature. Further, additives such as a plasticizer, a cross-linking agent and a surfactant can be added to the above resin.

Examples of the method for applying the above-mentioned resin to the woven fabric include a dipping method, a doctor coating method, a roll coating method and a spraying method. However, the method is not particularly limited to these and any known method can be used. Good. this house,
The hot melt resin can be applied, for example, by applying it to the woven fabric by a roll coating method. The hot melt resin applied to the woven fabric can be solidified by contacting it with a cooling roll after blowing cold air.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings.

Example 1 FIG. 1 is a schematic process explanatory view showing an example of a weaving process in the method of the present invention. A glass fiber having a fiber diameter of 9 μm and a fineness of 33.7 tex is used as the warp 2, and a fiber diameter of 9 is used as the weft 5.
Using a glass fiber having a micrometer and a fineness of 67.5 tex, and using an air jet type loom, a leno weave glass fiber woven fabric having a basis weight of 38 g / m ² and a weaving density (7 + 7) × 7 yarns / 25 mm was prepared as follows. Woven

First, the warp 2 is pulled out from the warp beam 1, passed through the healds 3a and 3b, and while the healds 3a and 3b are moved up and down in opposite directions, the weft 5 is driven by an air jet when the weft 5 is opened, and further the weft 4 is moved by the reed 4. 5 was carried to the cloth fell 6 and made into the woven fabric 7. Next, this woven fabric 7 is heated at 180 ° C. by a reverse roll coater 8 to obtain an EVA hot melt resin liquid (trade name: instant lock 234
-9928, manufactured by Kanebo UNS Co., Ltd.) 9 was adhered to the woven fabric in an amount of 10 wt% and cold air was blown from the air nozzle 10, and then a cooling roll 11a provided with a release film around it.
At 11b, the hot melt resin is cooled and solidified, and the winding portion 1
I wound it up with 2.

The obtained glass fiber woven fabric had no warp and the warp and weft were firmly bound in a neat arrangement.

COMPARATIVE EXAMPLE 1 Except that the hot melt resin applied between the cloth fell 6 and the winding portion 12 of the loom in Example 1 is not adhered and solidified.
A glass fiber woven fabric was obtained in the same manner as in Example 1. When the obtained glass fiber woven fabric was subjected to sealing with a clip tenter processing machine, when the cloth was set in the processing machine, the cloth was bent, and the cloth was disturbed from the start to about 50 m, and the yield was reduced.

Example 2 Using a 3K carbon fiber as the warp and the weft, a basis weight of 17 g / m ² and a weaving density of 1 × 1 /
A 25 mm plain weave carbon fiber woven fabric was woven. At that time, a reverse roll coater was installed between the weft end of the loom and the winding section, and the same EVA hot melt resin liquid as that used in Example 1 heated to 180 ° C. was added to the fabric at 10 wt%.
After being adhered and blown with cold air, the hot melt resin was cooled and solidified with a cooling roll around which a release film was provided, and then wound up.

The obtained carbon fiber woven fabric had no warp and the warp and weft were firmly bound in a neat arrangement.

Comparative Example 2 A carbon fiber woven fabric was obtained in the same manner as in Example 1 except that the hot melt resin applied between the cloth fell and the winding portion in Example 2 was not adhered and solidified. When the obtained carbon fiber woven fabric was subjected to sealing processing with a clip tenter processing machine, it could not be set well in the clip tenter processing machine due to its low woven density, and a stable woven fabric could not be obtained.

[0021]

According to the method of the present invention, when weaving with a loom, since the resin is applied and solidified between the cloth fell and the winding portion, the fibers constituting the woven fabric are coated with the resin. The warp yarns and the weft yarns are firmly bound, and the fabric can be stopped in the state where it is set on the loom. Therefore, it is possible to obtain a woven fabric in which the beautiful texture just after weaving is maintained as it is without disturbing the arrangement of the warp and the weft.

[Brief description of drawings]

FIG. 1 is a schematic process explanatory view showing an example of a weaving process in the method of the present invention.

[Explanation of symbols]

 1 warp beam 2 warp 3a, 3b heddle 4 reed 5 weft 6 weave 7 fabric 8 reverse roll coater 9 resin liquid 10 air nozzle 11a, 11b cooling roll 12 winding part

Claims (1)

[Claims] 1. When manufacturing a woven fabric composed of high heat-resistant fibers using a loom, the high heat-resistant fibers are woven into a woven fabric, and the woven fabric after the weaving is provided between the cloth fell and the winding section. A method for producing a fabric for sealing fabric, which comprises applying a resin to a resin, solidifying the resin, and binding the warp and the weft.