JPWO2008075505A1 - Heat-resistant double woven fabric and clothing and heat-resistant gloves using the same - Google Patents

Abstract

The heat-resistant bonded double woven fabric of the present invention is a bonded yarn (1a) between two upper and lower ground texture layers (10, 20) made of warp and weft and two upper and lower ground texture layers (10, 20). 1b), and at least one of the two upper and lower ground texture layers (10, 20) is composed of heat-resistant fiber yarns, and the binding yarns (1a, 1b) are composed of design twisted yarns including loops. . The garment of the present invention is a garment partially or entirely including the heat-resistant double-woven fabric, and a ground tissue layer composed of the heat-resistant fiber yarn is disposed on the surface side. The glove of the present invention is a glove in which the heat-resistant bonded double woven fabric is integrated with a gripping surface, and a ground tissue layer composed of the heat-resistant fiber yarn is disposed on the surface side. Thus, a heat-resistant double bonded fabric having high heat insulation, heat resistance, flame resistance, flame retardancy, and protection, clothing and heat-resistant gloves using the same are provided.

Description

  The present invention relates to a heat-resistant bonded double woven fabric having high heat insulating properties, heat resistance, flameproof properties, and flame retardancy, and clothing and heat-resistant gloves using the same.

  A double woven fabric composed of two upper and lower ground texture layers composed of warp and weft and the above two upper and lower ground texture layers connected by a binding yarn is known as a material for napped fabrics usually called a moquette fabric. . That is, after weaving using a moquette weaving machine, the bound yarn is cut into two cut pile fabrics, and the nappings are trimmed and used as car seats, vehicle seat sheets, sofa seats, etc. (Patent Literature) 1-3).

On the other hand, heat-resistant clothing and gloves are required from the viewpoint of safety in welding work such as arc welding, pre-furnace work such as a blast furnace, and work involving high-heat objects such as cooking. In addition, fire-resistant clothing is required to have heat resistance. Conventionally, it has been proposed to make heat-resistant gloves and fire fighting clothes using heat-resistant fibers such as aramid fiber, polybenzimidazole fiber, polybenzoxazole fiber, polybenzazole fiber, polyamideimide fiber, melamine fiber and polyimide fiber. (For example, Non-Patent Document 1 and Patent Document 1). Non-Patent Document 1 describes that fire fighting clothing uses 95% meta-aramid fiber for flameproofing and workability, and 5% para-aramid fiber for dimensional stability and shrinkage prevention. . Patent Document 4 describes that a glove is knitted using aramid fiber yarn alone and a synthetic resin is heated and fused to the palm portion.
JP 2005-154952 A JP-A-10-130992 Japanese Patent Laid-Open No. 9-250052 Utility model registration No. 3048633 “Encyclopedia of Textiles”, Maruzen, March 25, 2002, p. 619

  Conventionally, gloves with animal skin are used as heat-resistant gloves, but fingers are difficult to move, there are problems with workability, there is no function to absorb sweat, it cannot be washed, and it is unusable. It was a material. Moreover, the conventional glove using the cloth of a heat-resistant fiber yarn single-piece | unit has a problem in heat insulation, for example, when the arc fell on the said glove by arc welding, there existed a problem that a skin was burned. Increasing the thickness of the fabric solves this problem, but this time there is a problem that it is difficult to move the finger, causing problems in workability and increasing the cost. Furthermore, fire-fighting clothing using heat-resistant fibers is formed with aluminum foil (including coating) in the outermost layer, the fabric of the heat-resistant fibers alone is formed inside, and a non-woven fabric is placed inside for heat insulation As a result, the weight is increased as a whole, and there are problems that work is hindered and the human body breaks down. In recent years, clothing with heat resistance and protective properties has been demanded.

  In order to solve the above-described conventional problems, the present invention provides a heat-resistant double bonded fabric having high heat insulation, heat resistance, flame resistance, flame retardancy, and high protection, and clothing and heat-resistant gloves using the same. .

  The heat-resistant bonded double woven fabric of the present invention is a bonded double woven fabric in which two upper and lower ground texture layers composed of warp and weft and the upper and lower two ground texture layers are connected by a binding yarn, Of the two upper and lower ground texture layers, at least one layer is composed of a heat-resistant fiber yarn, and the binding yarn is a design twist yarn including a loop.

  The garment of the present invention is a garment including the heat-resistant double bonded fabric in part or in whole, wherein a ground tissue layer composed of the heat-resistant fiber yarn is arranged on the surface side.

  The glove according to the present invention is a glove in which the heat-resistant double bonded fabric is integrated with a gripping surface, and a ground tissue layer composed of the heat-resistant fiber yarn is arranged on the surface side.

FIG. 1A is a side view of a design twist yarn of one embodiment used in the present invention, and FIG. 1B is a cross-sectional view thereof. 2A and 2B are cross-sectional structure diagrams of a bonded double woven fabric used in one embodiment of the present invention. 3A to 3C are cross-sectional structure diagrams of the bonded double woven fabric according to Examples 1 to 4 of the present invention. FIG. 4 is a front view of a heat-resistant glove obtained in one embodiment of the present invention. FIG. 5 is a back view of the same.

  The present invention provides a bonded double woven fabric including a heat resistant fiber and a design twisted yarn, arranges the heat resistant yarn in at least one of the ground structures, and includes a lot of air using the design twisted yarn as the binding yarn. , Heat insulating fabric, heat resistance, flame resistance, flame resistance, high heat resistance fabric, and clothing and heat gloves using the same. That is, since many loops exist in the design twisted yarn, the bonded double woven fabric using the loop as the bonded yarn can include a lot of air between the ground structures. Since air has high heat insulating properties, the bonded double woven fabric also has high heat insulating properties. Furthermore, since there are many heat-resistant fibers on one surface, this portion exhibits heat resistance, flame resistance, flame retardancy, and protection. In addition, the heat-resistant bonded double woven fabric of the present invention, clothing and heat-resistant gloves using the same are breathable, have good workability, and can be washed.

  The bound double woven fabric of the present invention refers to a woven fabric having a double woven structure in which the bound yarn is not cut.

  In the conventional moquette fabric, the surface of the binding yarn becomes a cut pile and is arranged on the surface of the sheet, and the opposite surface of the ground structure is the back surface of the sheet. On the other hand, the binding double woven fabric of the present invention has a heat insulating layer without cutting the binding yarn, and the heat-resistant yarn is arranged on the warp and weft side of the ground structure, that is, the conventional moquette. The sheet is used by arranging the back side of the sheet on the front side (atmosphere side).

  In the present invention, the heat resistant fiber may be any inorganic fiber or organic fiber as long as it has a melting point or decomposition point of about 350 ° C. or higher, preferably 400 ° C. or higher. Preferably, aramid fibers (melting point or decomposition point of para-aramid: 480 to 570 ° C., meta-type: 400 to 430 ° C.), polybenzimidazole fibers (glass transition temperature: 400 ° C. or higher), poly (p-phenylenebenzobis) Oxal) (PBO) and other polybenzoxazole fibers (melting or decomposition temperature: 650 ° C.), poly (p-phenylenebenzobisthiazole) (PBZT) and other polybenzthiazole fibers (melting or decomposition temperature: 650 ° C.), Polyamideimide fiber (melting point or decomposition temperature: 350 ° C or higher), melamine fiber (melting point or decomposition temperature: 400 ° C or higher), polyimide fiber (melting point or decomposition temperature: 350 ° C or higher), polyarylate fiber (melting point or decomposition temperature: 400) ° C or higher) and carbon fiber (melting point or decomposition temperature: 2000-3500 ° C) Is one Kutomo. These fibers are easy to process into knitted or woven fabrics. The fineness is preferably about 1 to 50 in cotton count. A single yarn can be used, or a plurality of yarns can be aligned or twisted.

  As an example, the design twisted yarn includes a core yarn, a loop yarn, and a presser yarn. More preferably, the design twisted yarn has a structure in which the presser yarn is actually twisted at a twist number of 200 to 600 times / m from above the core yarn and the loop yarn.

  The loop yarn is preferably at least one selected from cotton, rayon, hemp, wool, acrylic fiber and the heat-resistant fiber. The core yarn and presser yarn are preferably at least one fiber yarn selected from aramid, polybenzimidazole, polybenzoxazole, polybenzthiazole, polyamideimide, melamine, polyimide, polyarylate, polyester, nylon and polyolefin. More preferable core yarn and presser yarn are polyester filament yarn or the heat-resistant fiber.

  When the loop yarn is produced by overfeeding the core yarn in the range of 1.01 to 10 times, preferably 1.2 to 6 times, loops can be randomly formed around the core yarn in any direction. When the loop yarn is overfeeded with respect to the core yarn, the loop yarn becomes longer relative to the core yarn by the amount of overfeed, and a loop is formed.

  The fineness of the design twisted yarn is preferably about 118 to 11811 dtex (cotton count: 0.5 to 50). A single yarn can be used, or a plurality of yarns can be aligned or twisted. The loop yarn of the design twist yarn may include a low-melting point heat-bonding fiber. When the low-melting-point heat-bonding fiber is included, the integrity of the design twisted yarn is improved, the fraying prevention is high, and the waist is also raised.

  The thickness of the heat-resistant double bonded fabric of the present invention is preferably from 0.5 mm to 5 mm, more preferably from 1 mm to 3 mm. The thickness of the woven fabric can be controlled to a target thickness by adjusting the binding length of the binding yarn.

Weight per unit area of the heat-resistant stitching double fabric (basis weight) is preferably in the range of 100 to 3000 g / m ^2, further scope of 300~2000g / cm ^2, the range in particular of 400~1500g / cm ² preferable. When the thickness and the weight per unit area are in the above ranges, the flame resistance is improved in addition to the thermal barrier properties.

  The heat-resistant double bonded woven fabric of the present invention is synergistic in heat insulation and heat resistance due to the ground texture layer composed of heat-resistant fiber yarns and the binding yarn composed of design twisted yarns having a large number of loops. Get higher. Further, the heat resistance fiber yarn disposed on the outer side provides good protection. Applications include uniforms such as airplane crews, firefighters, police officers, self-defense personnel, outer clothing such as jumpers, coats, vests, arm covers, aprons, protective hoods, fire clothes, protective clothes, work clothes, fire cloths, Useful for interior materials such as airplanes, cars, and trains. It is also useful as a heat-resistant glove used for welding work such as arc welding, pre-furnace work such as a blast furnace, heating cooking, fire extinguishing work, work for handling a hot object such as engine repair.

  This will be described below with reference to the drawings. FIG. 1A is a side view of a design twisted yarn 1 of one embodiment used in the present invention, and FIG. 1B is a sectional view thereof. The design twisted yarn 1 is composed of a core yarn 2, a loop yarn 3, and a presser yarn 4 from above, and the loop yarn 3 is an example of a natural fiber such as cotton or wool. The loop yarn 3 may contain a low melting point fiber. The low melting point fiber is included in the natural fiber by synthetic yarn, blended fiber, blended fiber or the like. The mixing ratio of the low melting point fiber to the natural fiber is preferably in the range of 10 to 30% by weight.

  2A-B are structural diagrams of a heat-resistant double bonded fabric used in one embodiment of the present invention. As shown in FIG. 2A, the upper texture 10 is formed of warps 11 and 12 and wefts 13 made of heat-resistant fiber yarns. The lower ground structure 20 is formed of warps 21 and 22 and wefts 23 made of heat-resistant fiber yarns. As the upper and lower ground textures, plain weave, oblique weave, satin weave, or these weaving, satin or other changing weaving, and crest weaving can be used.

  As shown in FIG. 2B, the upper and lower ground structures 10 and 20 are connected by a binding yarn 30 made of design twisted yarns 1a and 1b. The binding yarn 30 is entangled or inserted into the wefts 13 and 23 of the upper and lower ground structures by dobby, jacquard or the like. In this way, a heat-resistant bonded double woven fabric is formed. Since the design twist yarn has a large number of loops, the bonded double woven fabric using the loop for the bonded yarn can contain a lot of air between the ground structures, and can exhibit a heat insulating effect. Moreover, since many loops exist in the design twisted yarn, the design twisted yarn is bulky. When the upper and lower ground structures are pressed by hand, the design twist yarn is not crushed in an oblique direction, and a normal thick fabric feel can be obtained.

  In the above description, the upper and lower ground structures 10 and 20 are formed of heat resistant fiber yarns, but only one of the ground structures may be formed of heat resistant yarns. When only one ground texture is formed with heat-resistant yarn, the other ground texture may be formed with a design twisted yarn, or natural fibers, synthetic fibers used in ordinary woven fabrics, and spun yarns of these blends. , Filament yarn, or spun yarn and filament yarn may be formed.

  The heat resistant fiber yarns 11, 12, and 13 are arranged on the surface, and the design twist yarns 1a and 1b are arranged inside the fabric. A large number of loops 3 (FIGS. 1A and 1B) protrude from the design twisted yarns 1a and 1b, and include a lot of voids to exhibit a heat insulating action. Since the heat resistant fiber yarns 11, 12, and 13 are present on the surface, they exhibit heat resistance, flame resistance, and flame retardancy. Although some loops 3 also protrude on the heat-resistant fiber yarns 11, 12, and 13 side surfaces, the heat resistance is not greatly affected. Rather, when receiving a flame or touching a high-temperature object, the loop 3 on the surface of the heat-resistant fiber yarn 11, 12, 13 side burns, so that the operator can feel danger.

  Hereinafter, the present invention will be described more specifically with reference to examples. The present invention is not limited to the following examples.

Example 1
(1) Production of Design Twist Yarn Polyester multifilament, Woolley processed yarn (manufactured by Toray Industries, Inc.), total fineness of 167 dtex (150 denier), and 96 filaments were used as the core yarn and presser yarn.

  Four yarns of 196.9 dtex (cotton count: 30) as loop yarns and 110 dtex of low melting point heat-bonding fiber yarn (low melting point nylon, melting point 110 to 113 ° C., trade name “Elder” manufactured by Toray Industries, Inc.) Two were used.

  Loop yarn is supplied to the core yarn at an overfeed rate of 1.5 to 2.0 times and entangled. At the same time as the entanglement, the presser yarn is twisted over the yarn and the actual twist is applied at 200 to 600 times / m. It was. The obtained design twisted yarn was as shown in FIGS. 1A and 1B, and an average protrusion length of 3 mm of loops and an average of 20 to 30 loops per inch protruded at an angle of 360 ° at all angles. The fineness of the design twisted yarn was 1007.6 dtex.

(2) Preparation of heat-resistant fiber yarn A spun yarn, fineness: 295.3 dtex (cotton count: No. 20) of a commercial name “Conex” (meta-aramid fiber) manufactured by Teijin Limited was used as a double yarn.

(3) Weaving of double woven fabric Using a moquette weaving machine, the heat-resistant fiber yarn is 40 warps / 2.54 cm each for warp density (up / down texture) and 30 weft density (vertical texture) is each 2.5 / 2 cm The upper and lower ground structures were woven into a plain structure as shown in FIG. 2A. The resulting fabric was heat set at 110 ° C. for 40 minutes.

The design twisted yarn was used as a binding yarn for connecting the upper and lower ground structures, and was arranged as binding yarns 1a and 1b shown in FIG. 3A. The obtained bonded double woven fabric 31 had a thickness of about 3 mm and a basis weight of 1 kg / m ² . This fabric could not be cut by a manual cutter knife and could not be pierced, so that it was confirmed that it was protective.

(4) Knitting of gloves and heat resistance test In order to evaluate the heat resistance of the bonded double woven fabric obtained above, a knit was knitted using a circular knitting machine, and the obtained knit was sewn on the gloves. The knit was knitted using 60% by weight of the heat-resistant fiber yarn and 40% by weight of the design twisted yarn. The knitted structure is a double-sided knitted fabric, the heat-resistant fiber yarn is arranged on the front side, the design twist yarn is arranged on the back side, and the loop is mainly present on the back side, but a part is also exposed on the front side. . As shown in FIGS. 4 to 5, the bonded double woven fabric was integrated with the palm part (gripping part) 41 of the glove 40 and the tip parts 42 to 46 of each finger by sewing.

  Even when a flame of about 800 ° C. of nickel burner was applied to the palm of the obtained glove for 2 minutes, it did not burn, the surface burned slightly, but no heat was felt inside. Moreover, even when the work of grabbing a heated object at 400 ° C. was performed, no heat was felt and no burning occurred. This confirmed the flame retardancy and heat resistance.

  Also, when used for arc welding work, it does not feel heat, it does not heat even when welding sparks (approx. 1200 ° C) are applied, it is thin and does not impair work operation, it has air permeability, and workability is very good. It was. It could be washed after work and used repeatedly.

  In addition, when used for cooking cooking to bake pizza pie in a combustion furnace, it also has high heat insulation, heat resistance, flame resistance, flame resistance, breathability, good workability, and washing is also possible, Hygiene was also good.

  Table 1 shows the measured thermal conductivity of the bonded double woven fabric and other materials. The thermal conductivity was measured with a KES-F7 (Thermo Lab) apparatus of Osaka Prefectural Industrial Technology Research Institute.

表１から明らかなとおり、本発明の実施例１の接結２重織物は熱伝導率が低かった。

As is apparent from Table 1, the bonded double woven fabric of Example 1 of the present invention had a low thermal conductivity.

  Next, the cutting strength was measured using the bonded double woven fabric of Example 1 of the present invention. The cutting strength is in accordance with the “Constant Speed Extensometer Test” specified in JIS-1096 Burst Strength B Method. A knife (OLFA SDS-7) is attached to the tip of the push rod, and the knife speed is 2 cm / min. The strength with which the knife cuts through the sample was measured. As a comparative example, a commercially available heat-resistant leather glove that is said to have good cutting properties was measured. The results are shown in Table 2.

表２に示すように本発明の実施例１で得られた接結２重織物の切創強さは、市販の耐熱用皮手袋よりはるかに高かった。

As shown in Table 2, the cut strength of the bonded double woven fabric obtained in Example 1 of the present invention was much higher than commercially available heat-resistant leather gloves.

(Example 2)
As design yarn yarn, two yarns of 196.9 dtex (cotton count: 30) are used as a yarn, and low-melting heat-bonding fiber yarn (low-melting nylon, melting point 110 to 113 ° C., trade name “ELDER” manufactured by Toray Industries, Inc. ") Weaving was performed in the same manner as in Example 1 except that 110 dtex was used. The obtained bonded double woven fabric had a thickness of about 2 mm and a basis weight of 600 g / m ² . The texture was softer than the fabric of Example 1. This woven fabric was also protected as in Example 1.

  The bonded double woven fabric was integrated with the palm and fingers of the glove by sewing as in Example 1, and the heat resistance was examined. As in Example 1, the heat insulation, heat resistance, flame resistance, difficulty The flammability, breathability, and workability were also good, the laundry could be done, and the hygiene was good.

(Example 3)
The same design twisted yarn as in Example 2 was used, and the woven structure was woven in the same manner as in Example 1 except that the binding yarns 1a and 1b were alternately placed on the wefts of the upper base structure as shown in FIG. 3B. . The resulting bonded double woven fabric 32 had a thickness of about 1.5 mm and a basis weight of 550 g / m ² . The texture was softer than the fabric of Example 1. This woven fabric was also protected as in Example 1.

  The bonded double woven fabric was integrated with the palm and fingers of the glove by sewing as in Example 1, and the heat resistance was examined. As in Example 1, the heat insulation, heat resistance, flame resistance, difficulty The flammability, breathability, and workability were also good, the laundry could be done, and the hygiene was good.

Example 4
Weaving in the same manner as in Example 2 except that the same design twisted yarn as in Example 2 was used, and the woven structure was arranged such that the binding yarns 1a and 1b were W on the wefts of the upper base structure as shown in FIG. 3C. did. The resulting bonded double woven fabric 33 had a thickness of about 1.5 mm and a basis weight of 500 g / m ² . The texture was more flexible than the fabric of Example 3. This woven fabric was also protected as in Example 1.

  The bonded double woven fabric was integrated with the palm and fingers of the glove by sewing as in Example 1, and the heat resistance was examined. As in Example 1, the heat insulation, heat resistance, flame resistance, difficulty The flammability, breathability, and workability were also good, the laundry could be done, and the hygiene was good.

  Further, the resulting bonded double woven fabric 33 was used to sew on a gentleman's jacket. This jacket has the same weight and thickness as thick woolen clothes, is comfortable to wear, and is suitable for uniforms for airplane crews, firefighters, police officers, and self-defense personnel who require heat resistance and protection. I understood it.

(Comparative Example 1)
Using the glove fabric of Example 1, cowhide leather with a thickness of 2 mm was integrated by sewing at the same palm and finger positions as in Example 1. And when heat resistance was investigated, it burned with the 400 degreeC heating object, smoked, and heat resistance was low. Moreover, there was also a problem in hygiene because there was stuffiness, the feeling of wearing was bad, and washing was impossible. Furthermore, it was easily cut with the same cutter as in Example 1, and no protective property was observed.

  Examples of the use of the heat-resistant bonded double fabric of the present invention include uniforms for airplane crews, firefighters, police officers, self-defense personnel, outer clothing such as jumpers, coats, vests, arm covers, aprons, protective hoods, firefighting Useful for interior materials such as clothes, protective clothing, work clothes, fire cloth, airplanes, automobiles, and trains. It is also useful as a heat-resistant glove used for welding work such as arc welding, pre-furnace work such as a blast furnace, heating cooking, fire extinguishing work, work for handling a hot object such as engine repair.

Claims (13)

A bonded double woven fabric in which two upper and lower ground texture layers composed of warp and weft and the upper and lower two texture layers are connected by a binding yarn,
At least one of the two upper and lower ground texture layers is composed of heat resistant fiber yarns,
A heat-resistant double-woven fabric, wherein the binding yarn is a design twisted yarn including a loop.   The heat-resistant fiber yarn constituting the ground structure is at least one yarn selected from aramid fiber, polybenzimidazole fiber, polybenzoxazole fiber, polybenzthiazole fiber, polyamideimide fiber, melamine fiber, polyimide fiber and polyarylate fiber. The heat-resistant bonded double woven fabric according to claim 1.   The heat-resistant double bonded fabric according to claim 1, wherein the design twisted yarn is composed of a core yarn, a loop yarn, and a presser yarn.   The heat-resistant double bonded fabric according to claim 1 or 3, wherein the design twisted yarn has a structure in which a presser yarn is actually twisted at a twist number of 200 to 600 times / m from above a core yarn and a loop yarn.   The loop yarn is at least one fiber yarn selected from cotton, rayon, hemp, wool, acrylic, aramid, polybenzimidazole, polybenzoxazole, polybenzthiazole, polyamideimide, melamine, polyimide and polyarylate. The heat-resistant bonded double woven fabric according to 3 or 4.   The heat-resistant bonded double woven fabric according to any one of claims 3 to 5, wherein the loop yarn is 1.01 to 10 times longer than the core yarn.   The core yarn and presser yarn are at least one fiber yarn selected from aramid, polybenzimidazole, polybenzoxazole, polybenzthiazole, polyamideimide, melamine, polyimide, polyarylate, polyester, nylon and polyolefin. Or the heat-resistant binding double woven fabric of 4.   The heat-resistant bonded double woven fabric according to claim 1, 3 or 4, wherein the loop yarn of the design twist yarn includes a low-melting-point heat-bonding fiber.   The heat-resistant bonded double woven fabric according to any one of claims 1 to 8, wherein the fineness of the design twisted yarn is in a range of 118 to 11811 dtex (cotton count: 0.5 to 50). The heat-resistant stitching double fabric basis weight, heat resistance stitching double fabric according to claim 1 in the range of 100 to 3000 g / m ^2.   The heat-resistant double-woven fabric according to any one of claims 1 to 10, wherein the heat-resistant double-woven fabric has a thickness in a range of 0.5 to 5 mm.   It is the garment which contains the heat-resistant binding double woven fabric according to any one of claims 1 to 11 in part or in whole, and that a ground texture layer composed of the heat-resistant fiber yarn is arranged on the surface side. Characteristic clothing.   A glove in which the heat-resistant double-woven fabric according to any one of claims 1 to 11 is integrated with a gripping surface, wherein a ground tissue layer composed of the heat-resistant fiber yarn is disposed on the surface side. Features heat-resistant gloves.

Images