JP2001303390A - Water-jet woven fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high-quality inorganic fiber woven fabric produced at a high speed with low energy. SOLUTION: This inorganic fiber woven fabric is obtained by treating at least either one of warp yarns and weft yarns with a sparingly water-soluble sizing agent and weaving the resultant yarns with a water-jet loom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inorganic fiber fabric useful as, for example, a building material or an agricultural material.

[0002]

2. Description of the Related Art Inorganic fiber fabrics include, for example, glass fiber fabrics, carbon fiber fabrics, silicon carbide fiber fabrics, stainless steel fiber fabrics and the like. Having. Glass fiber fabrics use excellent properties such as heat resistance, chemical resistance, dimensional stability, and durability, for example, electrical insulating materials, fire curtains, filter cloths, heat insulating materials, cold insulating materials, sound insulating materials, and dust removal from air. Its usefulness is diverse, including filter media, FRP materials, roofing materials, flooring materials, wall materials, agricultural house materials, painting canvas, lining forming materials for water and sewer pipe line inner surfaces, boats, sleds, fishing rods, and the like.

[0003] The carbon fiber woven fabric has a carbon fiber specific gravity of 1.5.
1.6 and lighter than asbestos or glass fiber, excellent in tensile strength, heat resistance, electrical conductivity, chemical resistance, etc.
It is used for corrosive gas and liquid filtration materials, packing and the like. Also, for example, a metal fiber woven fabric made of stainless steel fiber has a tensile strength of 2.5 to
Since it is three times stronger, the tire cord is useful. Such inorganic fiber fabrics have been woven as industrial looms using shuttle looms, rapier looms, sluser looms or air jet looms.

[0004]

[Problem to be Solved by the Invention] In the Japanese textile industry, there is a handy that Japan's unique labor is expensive,
It is losing its competitiveness compared to other countries with low wages, and in order to maintain and improve its competitiveness, new and industrially advantageous new technologies are given as much superiority as possible from the viewpoint of energy saving or production speed. It is eager to find new technology,
It has been demanded. The present inventors diligently studied inorganic fiber fabrics from such a viewpoint. The maximum rotation speed of a conventional loom used for weaving inorganic fibers is about 200 times / minute for a shuttle loom, about 400 times / minute for a rapier loom, about 300 to 400 times / minute for a sluser loom, and is air jet. On a loom, the speed is about 600 times / minute.

The present inventors have focused on a water jet loom which was considered impossible to weave an inorganic fiber fabric. Water jet looms have a maximum speed of 1200 times / min and can reduce the required energy to about half that of air jet looms, but are used for industrial production of inorganic fiber fabrics. Absent.

[0006] The reason for this is unknown, but is probably due to the following reason. Conventionally, the use of a water jet loom is limited to those in which a sizing agent such as polyester or nylon is not used. When weaving an inorganic fiber woven fabric, the fiber yarn (filament) is usually treated with a sizing agent before weaving for the purpose of bundling single yarns. Typical examples of such sizing agent are starch (starch), polyvinyl alcohol, and the like. Water-soluble ones have been put to practical use. Such a sizing agent is unsuitable because it is removed by water jet water, and the specific gravity of inorganic fibers is larger than that of synthetic fibers such as polyester and nylon to which water jet looms are applied. It is presumed that the prediction of difficulty would be due to the existence in the art.

As a result of various studies, the present inventors have found that poorly water-soluble resins such as acrylic resins, polyester resins, and epoxy resins can be used as sizing agents for inorganic fibers. Furthermore, the present inventors applied the inorganic fiber yarn treated with such a poorly water-soluble resin to a water jet loom. Unexpectedly, a high-quality inorganic fiber woven fabric with little fuzziness was woven at high speed and low energy. Was found to be extremely advantageous in terms of quality.

Further, the present inventors (1) usually install a cylinder roll as a part of a loom to blow off water adhering to the inorganic fiber woven fabric immediately after weaving as described above. The inorganic fiber fabric can be dried on a roll, for example using hot air, and (2) a resin treatment tank is usually provided as a part of the loom. When processed,
The weft of ordinary coarse woven fabric (especially open plain weave) is easy to move, and as a weak point, wrinkles are likely to be formed when winding the woven fabric (especially surface winding). It was found that the fabric was stopped and wrinkles of the woven fabric were hardly formed during winding.

[0009]

That is, the present invention provides (1)
An inorganic fiber woven fabric obtained by treating at least one of a warp and a weft with a water-insoluble sizing agent and weaving the same with a water jet loom; (2) treating at least one of the warp and the weft with a water-insoluble sizing agent to form a water jet loom Weave with
The inorganic fiber woven fabric according to the above (1) or (2), wherein the inorganic fiber woven fabric further processed with a resin, (3) the woven fabric is a plain woven structure, a twill woven structure, a satin woven structure, or a tangled woven structure.
(4) The inorganic fiber woven fabric according to any one of the above (1) to (3), wherein at least one of the warp and the weft is a glass fiber thread, and (5) the resin processed by a resin is a polyolefin resin. ) To (4), the inorganic fiber woven fabric according to any one of (1) to (5) for building materials or agricultural materials, and (7) floor. (1) to (6), which are wood, roofing or wall materials
The inorganic fiber woven fabric according to any one of the above.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The inorganic fibers forming the yarn used for the production of the inorganic fiber woven fabric of the present invention have thermal stability,
Any material may be used as long as it has excellent chemical stability, dimensional stability and chemical resistance stability. Specific examples include glass fiber, carbon fiber, and metal fiber, and a mixed fiber of such an inorganic fiber and a chemically synthesized fiber or a natural fiber (for example, a mixed twist or a mixed woven fiber) may be used. Glass fibers are roughly classified into alkali-free type and alkali-containing type according to the alkali content.The former has excellent electrical and mechanical properties due to the blending of boron and fluorine-based flux. In the context of the use in the field, it is called E glass, and the latter is called C glass because it has high chemical resistance and is used for chemical applications. Both are used in the present invention. Since C glass has a high alkali content, an ECR glass using a titanium and zinc-based flux has been developed at the same time as reducing the alkali content, and is commonly used instead of C glass. Therefore, ECR glass may also be used in the present invention. Further, A glass, L glass, S glass, YM31-A glass and the like are also used as preferred inorganic fibers in the present invention.

One preferred glass fiber used in the present invention is free of B ₂ O ₃ and F _{2 and} has the formula SiO ₂ —Ti
It is a glass having a composition represented by O ₂ —Al ₂ O ₃ —RO (R is a divalent metal such as Ca and Mg) or SiO ₂ —Al ₂ O ₃ —RO (R is as defined above). Especially Si
Glass fibers consisting of O ₂ -Al ₂ O ₃ -CaO and MgO, among them free of fluorine, sulfate or titanium, having a Delta T value of at least 52 ° C., especially 66 ° C.
The above glass fibers are preferred.

The important glass fibers used in the present invention are:
About 59.0 to 62.0% by weight of SiO 2 without boron
₂ , about 20.0 to 24.0% by weight of CaO, about 12.0%
１５15.0 wt% Al ₂ O ₃ , about 1.0-4.0 wt% MgO, about 0.0-0.5 wt% F ₂ , about 0.1
2.0 wt% of _Na 2 O, from about 0.0 to 0.9 wt% of TiO _2, from about 0.0 to 0.5 wt% _Fe 2 _{O 3,} about 0.0 to 2.0 weight % K ₂ O and about 0.0-0.5% by weight of SO ₃ , and further (1) a formation temperature (fo) of about 1149 ° C. to 1371 ° C.
rming temperature) is about 1000 poise,
(2) Liquefaction temperature exceeding about 38 ° C. and below the formation temperature (li)
Glass fiber compositions having a quidus temperature) are most preferred for high performance. Other PCT applications WO96 / 3
Any of the glass fibers described in 9362 is conveniently used.

Inorganic fibers other than glass fibers that can be used in the present invention include, for example, carbon fibers based on acrylonitrile and petroleum pitch, rock wool, burial fibers, and metal fibers such as stainless steel yarn. These inorganic fibers are woven in combination with polyamide fibers such as nylons and Kevlar, synthetic fibers such as polyester, polyvinyl alcohol, polyvinyl chloride, polyacrylonitrile, and polyolefin, and natural fibers such as flax, manila hemp, and palm, for example, by twisting. You may. The yarn composed of these fibers is produced according to a means known per se.

The yarn is usually processed before weaving by a loom. A typical example is sizing agent treatment. In the present invention, a poorly water-soluble sizing agent is used. In the present invention,
Usually, a water-soluble sizing agent such as starch or polyvinyl alcohol is not used as a main component of the sizing agent. For example, known water-insoluble polymer resins such as polyester resin, epoxy resin, phenol resin, polyolefin resin and polyamide resin are all conveniently used as the water-insoluble sizing agent. Here, the water-hardening sizing agent is
In the contact between the sizing agent and water during the weaving process by a jet loom, a sizing agent that is dissolved in water and does not dissolve in water until the sizing agent loses its function,
Therefore, it contains a water-insoluble sizing agent.

Usually, in the fiber spinning operation, the sizing agent is applied immediately after the fiber group is pulled out from the bushing. The sizing agent may be a known one, but may be any as long as the above-mentioned resin is contained as a poorly water-soluble sizing agent. Preferably, the poorly water-soluble resin is used in the form of an aqueous emulsion or dispersion. . The sizing agent may optionally further contain, for example, a surfactant, an antistatic agent, a silane coupling agent, and, if desired, other components such as a polyvinyl alcohol resin as a fiber coating aid or a lubricant. Known or commercially available water-insoluble sizing agents are conveniently used.

After drying the fiber yarn treated with the sizing agent, the inorganic fiber woven fabric of the present invention is produced by a water jet loom using the yarn as at least one of a warp and a weft. Therefore,
In the present invention, both the warp and the weft or one of the warp and the weft is treated with the sizing agent, and the other of the warp and the weft does not necessarily have to be treated with the sizing agent.

A water jet loom is a loom that injects water instead of putting a shuttle into a shed and feeds a weft onto the stream. Known water jet looms are conveniently used in the present invention. A preferred example of the water jet loom will be described. The weft wound on the cone or cheese is provided on a loom, and from this, a weft slightly longer than the width of the fabric is pulled out through a length measuring device, and between the warps opened up and down by the water flow ejected from the injection nozzle. It is blown. Further, in order to prevent ear breakage, both ends of the weft are twisted by using two ear braids on both sides (only one side is shown in the figure). After the beating, the two ends of the weft are trimmed of excess, leaving a length of about 2 to 3 mm from each edge of the fabric.

The weave of the woven fabric may be any plain weave, twill weave, satin weave, garment weave, etc., as long as it can be woven by a water jet loom. The inorganic fiber fabric of the present invention thus produced is transferred to a cylinder roll to remove adhering water, and dried there or dried by far infrared rays or hot air. This step may be performed by a means known per se. The dried inorganic fiber fabric is treated with a resin. The main purpose of this treatment is to seal the dry fabric (especially in the case of plain woven fabric) because the eyes are loose so that the warp and weft do not move.

The filling treatment is performed, for example, by passing the inorganic fiber woven fabric through a resin liquid layer or applying a resin liquid to the inorganic fiber woven fabric to impregnate the resin at the intersections of the warp and the weft yarns. This is performed by drying the treated inorganic fiber fabric and winding the fabric. As a resin liquid for filling treatment,
Known or commercially available ones are advantageously used. Examples of the resin therefor include a polyolefin resin such as a polyethylene resin and a polypropylene resin, an acrylic resin, a polyurethane resin, and a polyvinyl acetate resin. These resins may be used alone or in combination. This step may be performed by a means known per se.

Cylinder drying by contact for drying,
Far infrared drying, hot air drying and the like are preferably used. The clogged inorganic fiber woven fabric is less likely to wrinkle when wound in a surface winding. The inorganic fiber fabric produced in this manner may be further processed as required, for example, fire and smoke screens, flooring materials, roofing materials, building materials such as wall materials, agricultural materials, movie screens, filtration materials, Used in a wide range of fields such as painting canvas.

[0021]

EXAMPLES Example 1 Epoxy emulsion (KP-88 manufactured by Matsumoto Yushi Co., Ltd.)
7) Water was added to a mixture of 3 parts by weight, 1.8 parts by weight of a silane coupling agent (A-187 manufactured by Nippon Yunika Co., Ltd.) and a cationic surfactant (NK Oil WD-530 manufactured by Nichika Chemical Co., Ltd.). In addition, a sizing agent was produced by adding 100 parts by weight. The sizing agent was applied to E-glass (a multi-filament of 9 microns), air-dried, and 1600 yarns produced by twisting 0.7 times / m in the Z direction were beam-warped. The yarn wound on the beam is used as a warp and a weft, and a water jet loom (Nissan Motor KK.) Is used so that the warp and the weft have a density of 18/25 mm and 15/25 mm, respectively, and a nominal width of 2100 mm. , Speed: 800 times / min). After the glass fiber thus produced is guided by a cylinder roll and dried, a polyvinyl acetate resin emulsion (Polysol AD-68, manufactured by Showa Polymer Co., Ltd.) is solidified with kiss roll to a solid content of 20% by weight. The prepared solution was applied, dried with a cylinder roll, and wound with a surface winding. In addition, the drying temperature of the drying by the cylinder and roll twice is 150.
° C. When the glass fiber fabric produced in this manner was inspected using a counter machine over a length of 1,000 m, no wrinkles were found in the length or width, and no defects were found in the seal.

[0022]

The high-speed, low-energy, high-quality inorganic fiber woven fabric can be manufactured by treating at least one of the warp and the weft with a sizing agent having poor water solubility and weaving it with a water jet loom.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Masaki Arikawa 2210 Tarui-cho, Fuwa-gun, Gifu Unitika Glass Fiber Co., Ltd.F-term (reference) in the Tarui Plant 4L033 AA09 AB03 AB05 AC15 CA11 CA18 CA28 CA34 CA45 CA49 CA50 CA55 4L048 AA03 AB07 BA01 BA02 DA28 DA30 EA01

Claims (7)

[Claims] An inorganic fiber woven fabric obtained by treating at least one of a warp and a weft with a sizing agent having poor water solubility and woven with a water jet loom. 2. An inorganic fiber woven fabric in which at least one of a warp and a weft is treated with a water-insoluble sizing agent, woven with a water jet loom, and further processed with a resin. 3. The inorganic fiber woven fabric according to claim 1, wherein the woven fabric is a plain woven structure, a twill woven structure, a satin woven structure, or a tangled woven structure. 4. The inorganic fiber woven fabric according to claim 1, wherein at least one of the warp and the weft is a glass fiber thread. 5. The inorganic fiber woven fabric according to claim 1, wherein the resin processed by the resin treatment is a polyolefin resin. 6. The inorganic fiber woven fabric according to claim 1, which is used for building materials or agricultural materials. 7. A floor material, a roof material or a wall material.
7. The inorganic fiber woven fabric according to any one of 6.