JP3988126B2 - Protective gloves - Google Patents

Description

【００７２】
【発明の効果】
本発明の被覆糸を用いた防護手袋は、耐熱性と耐切創性に優れ、また伸縮性に富み、手によくフィットして作業性がよく、耐熱防護手袋、建設業、山林業などの作業用防護手袋、各種スポーツ用手袋、その他の各種防護手袋に有用である。
【００７３】
これらの結果を表１に示す。
【図面の簡単な説明】
【図１】本発明の被覆糸の一例を示す概略側面図である。
【図２】本発明の被覆糸の製造方法の一例を示す概略模式図である。
【符号の説明】
（イ）：芯糸
（ロ）：鞘糸
（ハ）：被覆糸
１：芯糸
２：鞘糸
３：転がし給糸ローラ
４：フィードローラ
５：下段スピンドル
６：下段ベルト
７：上段スピンドル
８：上段ベルト
９：Ｈボビン
１０：スネルガイド
１１：デリベリローラ
１２：ガイドバー
１３：テイクアップローラ
１４：チーズ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a protective glove excellent in combustion resistance, heat resistance and stretchability.
[0002]
[Prior art]
General-purpose thermoplastic synthetic fibers such as nylon and polyester fibers, which are widely used as clothing and industrial materials, melt at about 250 ° C. and have a critical oxygen index of about 20, and burn well in air. Therefore, these general-purpose thermoplastic synthetic fibers are used as protective gloves used in scenes with a high risk of exposure to flames and high heat, such as protective gloves such as fire fighting, automobile racing, iron making or welding gloves. It is not suitable as a material.
[0003]
Heat-resistant and high-performance fibers such as aramid fiber, wholly aromatic polyester fiber, or polyparaphenylene benzobisoxazole fiber do not melt at about 250 ° C., and their decomposition temperature is as high as about 500 ° C. Further, the critical oxygen index is about 24 or more, and in the air, it burns by bringing the flame as a heat source closer, but if the flame is moved away, the combustion cannot be continued.
[0004]
Thus, the heat-resistant and high-performance fiber is a material excellent in heat resistance and flame retardancy. Therefore, for example, aramid fiber, which is a heat-resistant and high-performance fiber, is preferably used as a protective glove in a scene with a high risk of exposure to flames and high heat.
[0005]
Above all, para-aramid fibers that have both heat resistance and high strength properties are used not only for sports clothing, work clothes, ropes, tire cords, etc. that require tear strength and heat resistance, but also for preventing wounds. It is also widely used as protective clothing such as work gloves and work clothes.
[0006]
As the para-aramid fiber, polyparaphenylene terephthalamide fiber (hereinafter referred to as PPTA fiber) is well known. For example, US Pat. No. 3,767,756, Japanese Patent Publication No. 56-128312, discloses PPTA fiber. A manufacturing method is disclosed.
[0007]
On the other hand, meta-aramid fibers do not have cut resistance and high tensile strength like para-aramid fibers, but their heat resistance makes them suitable for fire fighting clothes, heat insulating filters, heat-resistant dust filters, and electrical insulating materials. It is used.
[0008]
Conventionally, when producing textile products such as clothing products using these heat-resistant and high-strength fibers, the fibers have only been used in the form of non-stretchable filament yarns or spun yarns.
However, even when a non-stretchable yarn such as a filament yarn or a spun yarn is processed into a fabric to produce a garment product, the garment product is inferior in elasticity, so when wearing the garment product, There was a problem that it was not comfortable to wear and it was difficult to work. In addition, work gloves made from such non-stretchable yarns have a poor feeling of wear, which has been a cause of reduced work efficiency.
[0009]
In view of such market demands, Japanese Patent Laid-Open Nos. 48-19818, 53-114923, 3-27117, 1-192839, 6-280120, etc. Thus, a method for imparting crimp to a heat-resistant filament yarn or a heat-resistant high-performance short fiber bundle has been proposed and is publicly known.
[0010]
However, in any of these known methods, it has not been possible to provide a fiber yarn having good stretchability and soft texture of woolen tone.
[0011]
[Problems to be solved by the invention]
In view of the background of such prior art, the present invention is excellent in stretchability, heat resistance, mechanical strength and appearance, fits well on the body such as the hand, has good workability, and has a high-class woolen texture. It is intended to provide protective gloves with
[0012]
[Means for Solving the Problems]
The present invention employs the following means in order to solve such problems. That is, the protective glove according to the present invention is composed of a covered yarn using elastic fibers as the core yarn and heat-resistant and / or high-strength short fiber bundles of 25 to 1000 mm as the sheath yarn. It is a feature.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a protective glove having the above-mentioned problems, that is, excellent stretchability, heat resistance, mechanical strength and appearance, fits well to the hands and body, has good workability, and has a high-class woolen texture. As a result of diligent research, we made protective gloves using coated yarn made of a combination of heat-resistant and / or high-strength short fiber bundles and elastic fibers such as spandex with high elasticity. It was clarified to solve the problem at once.
[0014]
In the present invention, protective gloves are heat-resistant gloves such as fire fighting gloves, working gloves in a blast furnace, welding work gloves, automobile racer gloves, and the like, and it is necessary to protect hands from protrusions and severe wear such as factory, forestry and construction industries. It includes certain protective gloves, various sports and outdoor protective gloves, and various gloves used for similar purposes.
[0015]
Hereinafter, the protective gloves of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is a schematic side view showing an example of a coated yarn constituting the protective glove of the present invention. The coated yarn (c) is formed by coating a single or double twist around the elastic fiber (I), which is a core yarn, with a heat-resistant, high-performance fiber bundle (B), which is a sheath yarn. It is.
[0017]
As the elastic fiber constituting the core yarn of the coated yarn, a fibrous material made of natural rubber or synthetic rubber, or a synthetic fiber having elasticity such as rubber can be used. Of these, polyurethane elastic fibers having high stretchability are preferably used.
[0018]
As such a polyurethane-based elastic fiber, one obtained by spinning a polyurethane polymer obtained by reacting an isocyanate mainly composed of a polymer diol and an organic diisocyanate with a polyfunctional active hydrogen compound is preferably used.
[0019]
Examples of the polymer diol include polyether glycols such as polytetramethylene glycol, polyethylene glycol, and propylene ether glycol, glycols such as ethylene glycol, 1,6-hexanediol, 1,4-butanediol, and neopentyl glycol. Polyester glycols, polycaprolactone glycol, polyhexamethylene dicarbonate glycol obtained by reacting at least one kind with dicarboxylic acid such as adipic acid, suberic acid, azelaic acid, sebacic acid, β-methyladipic acid, isophthalic acid One kind or a mixture or copolymer of two or more kinds of polymer diols as described above can be used.
[0020]
Examples of the organic diisocyanate include 4,4′-diphenylmethane diisocyanate, 1,5-naphthalene diisocyanate, 1,4-phenylene diisocyanate, 2,4-tolylene diisocyanate, hexamethylene diisocyanate, 1,4-cyclohexane diisocyanate, 4 One or a mixture of two or more organic diisocyanates such as 4,4'-dicyclohexylmethane diisocyanate and isophorone diisocyanate are used. A small amount of triisocyanate may be used in combination with such organic diisocyanate.
[0021]
Examples of the polyfunctional active hydrogen compound include ethylenediamine, 1,2-propylenediamine, hexamethylenediamine, xylylenediamine, 4,4′-diphenylmethanediamine, hydrazine, 1,4-diaminopiperazine, ethylene glycol, 1, One kind of 4-butanediol, 1,6-hexanediol, water, or a mixture of two or more of these is used. If desired, these polyfunctional active hydrogen compounds may be used in combination with a small amount of a terminator such as monoamine or monoalcohol.
[0022]
In addition, antioxidants such as 2,6-ditetrabutylparacresol and phosphite, light or ultraviolet absorbers such as hydroxybenzophenone or hydroxybenzothiazole, 1,1-dialkyl-substituted semicarbazide, dithiocarbamate, etc. The gas yellowing, deterioration preventing agent, and white pigments such as titanium oxide and zinc oxide can be used as appropriate.
[0023]
The fineness of the polyurethane elastic fiber is preferably in the range of 11 to 940 dtex, more preferably in the range of 22 to 310 dtex. That is, when it is less than 11 dtex, it becomes a cause of thread breakage in covering, knitting, and weaving processes, or when clothing is formed, it is not possible to obtain a product with sufficient fit when worn. On the other hand, if it exceeds 940 dtex, it has high rigidity and is not suitable for clothing that requires flexibility.
[0024]
Further, the breaking elongation of the core yarn is preferably 300% or more. When the breaking elongation is less than 300%, sufficient stretchability cannot be obtained when the fabric is formed.
[0025]
The cross-sectional shape of the polyurethane elastic fiber is not particularly limited, and may be circular, flat, or other shapes.
[0026]
As the sheath yarn in the coated yarn of the present invention, a heat-resistant and highly functional short fiber bundle is used. Such a heat-resistant and high-performance short fiber bundle has a flame resistance of 24 or more, measured based on JIS K 7201, and is measured based on JIS K 7120, that is, measured by differential scanning calorimetry. A fiber that simultaneously satisfies the thermal decomposition temperature of 400 ° C. or higher and heat resistance is preferably used.
[0027]
Fibers with such heat-resistant properties are fiber materials used for protective gloves, such as fire gloves, motor racing gloves, iron work gloves or welding work gloves, in situations where there is a high risk of exposure to flames or high heat. Are preferably used.
[0028]
Examples of such heat-resistant and high-performance short fibers include aramid fibers, wholly aromatic polyester fibers (for example, Kuraray Co., Ltd., trade name Vectran), polyparaphenylene benzobisoxazole fibers (for example, Toyobo Co., Ltd., trade name Zylon), Polybenzimidazole fiber, polyamide-imide fiber (for example, trade name Kelmel manufactured by Rhône-Poulenc), polyimide fiber, and the like are used. Aramid fibers include meta-aramid fibers and para-aramid fibers. As the meta aramid fiber, for example, a meta total aromatic polyamide fiber such as polymetaphenylene isophthalamide fiber (manufactured by DuPont, trade name Nomex) can be used.
[0029]
Examples of the para-aramid fiber include polyparaphenylene terephthalamide fiber (trade name Kevlar manufactured by Toray DuPont Co., Ltd.) and copolyparaphenylene-3,4'-diphenyl ether terephthalamide fiber (trade name, manufactured by Teijin Limited). Para-type wholly aromatic polyamide fibers such as Technora) are used.
[0030]
Among heat-resistant and high-performance fibers, wholly aromatic polyester fibers having a tensile strength of 9 cN / dtex or more, polyparaphenylenebenzobisoxazole fibers, para-aramid fibers, etc. are sharp in addition to heat resistance and flame retardancy. Since it is hard to cut with respect to a blade etc., it can be preferably used also as a work glove and work clothes for wound prevention.
[0031]
In the present invention, para-aramid fibers are preferred because they are excellent in heat resistance and flame retardancy as well as high strength characteristics and cut resistance, and polyparaphenylene terephthalamide fibers are particularly preferred because of their high flame retardancy. Preferably used.
[0032]
Such a heat-resistant and high-performance fiber bundle may consist of one type of the heat-resistant and high-performance short fiber bundle, or may consist of any two or more types of heat-resistant and high-performance short fiber bundles. Moreover, the thing of the form made into the composite thread | yarn by blending with other well-known fibers, such as polyester, nylon, and a polyvinyl alcohol-type fiber, and twisting can also be used.
[0033]
The heat-resistant and high-performance short fiber bundle may have any structure or form such as spun yarn, stretch break yarn, untwisted yarn, that is, an aggregate of short fibers.
[0034]
The fiber length of the short fibers constituting the heat-resistant and high-functional short fiber bundle is preferably 25 to 1000 mm, more preferably 30 to 200 mm. In processing such as spinning, 25 mm or more is preferable, and in order to obtain a soft texture with a spun tone, it is preferably 1000 mm or less.
[0035]
The single fiber fineness of the heat-resistant and high-performance short fiber bundle may be appropriately selected in consideration of the surface appearance, heat resistance, stretchability, texture, etc. depending on the purpose of use, but is preferably 0.2 to 5 dtex, more preferably Is 0.5 to 3 dtex. The single fiber fineness is preferably 0.2 dtex or more in processing such as spinning, and is preferably 5 Ddtex or less in order to obtain a soft texture of the spun tone.
[0036]
Next, the thickness of the sheath yarn is preferably in the range of 148 dtex to 394 dtex (cotton count 40 s / 1 to 15 s / 1) depending on the purpose of use.
[0037]
When the sheath yarn of the coated yarn of the present invention is a twisted yarn, the twist direction may be either S or Z, but from the viewpoint of reducing the torque of the coated yarn, the reverse direction of the covering twist direction is preferable.
[0038]
The number of twists applied to the sheath yarn is not particularly limited, but is preferably in the range of 2.0 to 4.5 in terms of the twist coefficient K determined by the formula of twist number = K · S ^1/2 .
[0039]
If the twist coefficient K is less than 2.0, the twist is too small, so that the strength of the sheath yarn is not sufficient, and yarn breakage may occur in the processing step of the coated yarn, which may reduce the processing efficiency. If K exceeds 4.5, the twist is too high and snare is likely to occur, so that it is difficult to obtain a uniform coated yarn. Moreover, even if the generation of snare is prevented by heat setting or the like, the coated yarn obtained has a hard texture due to high twist.
[0040]
Here, S represents a cotton count. Cotton count S indicates that the length of the yarn weighing 453.6 g (1 lb) is 767.8 m (840 yards) × S.
[0041]
From the viewpoint of obtaining excellent stretchability, the sheath yarn of the present invention may be one in which the sheath yarn is coated around the core yarn, and from the viewpoint of obtaining excellent coverage, the sheath yarn is the core. It may be a double coating around the yarn.
[0042]
Next, the manufacturing method of the coated yarn of this invention is demonstrated. FIG. 2 is a schematic diagram showing an example of a method for producing a coated yarn of the present invention.
[0043]
In the present invention, a polyurethane elastic fiber is used as a core yarn, and the heat-resistant and high-performance short fiber bundle is coated thereon as a sheath yarn. In the case of coating, a commercially available covering machine or the like is preferably used.
[0044]
FIG. 2 shows an example of double coating. In FIG. 2, the polyurethane fiber used as the core yarn 1 is positively fed by the rolling yarn feeding roller 3, and the conditions at that time are as follows. The draft between the feed roller 4 and the feed roller 4 is in the range of 1.2 to 2.4, and the draft between the rolling yarn feeding roller 3 and the delivery roller 11 is in the range of 2.4 to 4.0. It is preferable to set.
[0045]
If the predraft is less than 1.2 between the rolling yarn feeding roller 3 and the feed roller 4, the polyurethane fiber sag between the rolling yarn feeding roller 3 and the feed roller 4 from the viewpoint of the inherent adhesiveness of the polyurethane fiber. As a result, there are three winding yarn feeding rollers and yarn breakage is likely to occur. On the other hand, if the predraft exceeds 2.4, yarn breakage due to excessive drawing is caused. Further, if the draft between the rolling yarn feeding roller 3 and the delivery roller 11 is less than 2.4, it is not possible to obtain a coated yarn having sufficient stretchability. May cause thread breakage.
[0046]
The sheath yarn is wound around the H bobbin 2 by a commercially available high-speed winder, and then installed on the lower spindle 5 and the upper spindle 7 as shown in FIG. 2, and is wound around the core yarn by rotating the spindle. Form.
[0047]
The obtained coated yarn is wound around the cheese 14 by the take-up roller 13.
[0048]
When producing a single-coated yarn, a single H bobbin is installed on either the upper or lower spindle, and the sheath yarn is wound around the core yarn by rotating the spindle.
[0049]
When the sheath yarn is coated on the core yarn, the sheath twist number of the sheath yarn may be appropriately selected depending on the count of the sheath yarn, but is preferably in the range of 100 to 2000 turns / m. If it is less than 10 times / m, the core yarn and the sheath yarn may be separated, and if it is 2000 times / m or more, the coated yarn may become hard or the stretchability may be reduced.
[0050]
In addition, in the case of covering twice, the upper twist is preferably the direction opposite to the lower twist from the viewpoint of canceling the torque of the lower twist, and from the same viewpoint, the number of twists of the upper twist is that of the lower twist. The twist number is preferably 0.7 to 0.9 times the twist number.
[0051]
The coated yarn of the present invention is processed into a knitted fabric or woven fabric and is useful for the following protective gloves. For example, heat-resistant gloves used in scenes exposed to high temperatures such as flames, sparks, melted metal, work gloves that protect arms and hands from protrusions and sharp debris, protective gloves for various sports and outdoor activities And can be used on the outer and / or lining of these protective gloves, insole, or the entire protective glove. Specifically, for example, there are fire gloves, working gloves in a blast furnace, welding gloves, automobile racer gloves, and other various gloves.
[0052]
Heat resistance, cut resistance, etc. by impregnating an elastomer into a protective glove made of knitted fabric or woven fabric using a coated yarn made of heat-resistant and high-performance fiber with high stretchability of the present invention, or by laminating and bonding to the elastomer In addition to the above characteristics, it is possible to obtain protective gloves that have both wear resistance and water resistance. Examples of the elastomer include polyurethane resin, nitrile butadiene rubber, vinyl chloride, and natural rubber.
[0053]
The protective glove using the coated yarn of the present invention desirably contains the coated yarn of the present invention in an amount of 10 wt% or more, preferably 40 wt% or more, more preferably 50 wt% or more. By including 10% or more of the coated yarn of the present invention, the heat resistance, combustion resistance, and stretch properties that are the object of the present invention can be obtained.
[0054]
As a result of further studies, this technology is applied to high-strength polyvinyl alcohol fibers that are not heat-resistant fibers but have a tensile strength of 9 cN / dtex or more, which is a non-thermoplastic fiber. It has also been found that it can be used as a protective glove for preventing wounds that are difficult to cut. The coated yarn using the high-strength polyvinyl alcohol fiber can be obtained by the same method as the coated yarn using the heat-resistant and high-performance fiber. That is, polyurethane-based elastic fibers are used as core yarns, and high-strength polyvinyl alcohol fiber short fiber bundles are covered as sheath yarns.
[0055]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.
[0056]
The evaluation method of each physical property was based on the following method.
[Tensile strength]
Using a constant-speed extension type tensile tester with a self-recording device, it was attached at a 10 cm grip interval with an initial load of 7 mg per dtex, stretched to break at a tensile speed of 20 cm / min, The strength was measured.
[Elongation and residual strain at 5 cN load]
Using a constant-speed extension type tensile tester with a self-recording device, it is attached to a 10 cm grip interval with an initial load of 7 mg per dtex, stretched to a load of 5 cN at a tensile speed of 20 cm / min, and a load of 5 cN The elongation at time was measured. Immediately after the load of 5 cN, the sample was deweighted at the same speed, and the elongation at the time of complete deweighting was defined as the residual strain.
[Fineness]
The fineness was measured by JIS L 1013: 1999 chemical fiber filament yarn test method 8.3.
[Limited oxygen index]
JIS K 7201: 1999 Measured by a combustion test method for polymer materials by the oxygen index method.
[Pyrolysis point]
JIS K 7120: 1987 Measured by the thermogravimetric method of plastics.
[Heat meltability]
When a 6 x 6 cm sample was brought into contact with the tip of a metal rod (diameter 0.6 cm) heated to 500 ° C under its own weight for 5 seconds, the cross-sectional area of the metal rod was determined by the degree of perforation made in the cloth by heat. Relative comparison with grading.
5th grade: No hole, 4th grade: 1/4 hole, 3rd grade; 1/2 hole, 2nd grade; 3/4 hole, 1st grade: Completely perforated.
[Cut resistance] ISO 13997: 1999
Measured according to Protective clothing-Mechanical properties-Determination of resistance to cutting by sharp objects. When the blade penetrates (cuts) the test piece at a certain moving distance, a material that is hard to cut requires a heavier load. In the load L applied to the blade, when the blade penetrates the test piece at a blade moving distance of 20 mm, the load L is defined as a cutting resistance value. The blade used was American Safety Razor Co., Part No. 88-0121. The measured value is represented by N (= Newton), and the larger the value, the more difficult it is to cut.
[0057]
[Example 1]
A commercially available single fiber fineness of 1.7 Dtex, a PPTA short fiber having a fiber length of 51 mm (manufactured by Toray DuPont Co., Ltd., trade name: Kevlar) is 13.0 (times / 25.4 mm) by a normal ring spinning method. A spun yarn having a cotton count of 20 s / 1 (295 Dtex single yarn) was obtained.
[0058]
Next, 78 dtex polyurethane elastic fiber (trade name lycra, manufactured by Toray DuPont Co., Ltd.) is used as the core yarn, and the obtained cotton count 20s / 1 (295 Dtex single yarn) PPTA spun yarn is used as the sheath yarn. Using the covering process shown in (1), a covering process was performed under the following conditions to obtain a single coated yarn.
[0059]
Draft: 3.0 times the number of twists: Z160T / m
Spindle speed: 5000rpm
Winding ratio: 93.0%
The obtained single-coated yarn had a tensile strength of 6.4 cN / dtex, a critical oxygen index of 26, an elongation at 5 cN load of 24%, and a residual strain of 4.8%.
[0060]
Four single coated yarns composed of the obtained PPTA fiber single fiber bundles were aligned and supplied to an SFG-13 gauge type glove knitting machine (Shimae Seisaku Seisakusho Co., Ltd.) to knit the gloves.
[0061]
The cut resistance of this glove is 6.2 (N), it has high cut resistance, thermal meltability is 5th grade, there is no hole perforation due to heat, and it is rich in elasticity, so it feels good to wear, and the automotive industry It was suitable as a highly safe working glove for use in sheet metal work, handling aluminum building materials, and handling glass equipment such as beer bottles.
[0062]
[Comparative Example 1]
A glove was obtained in the same manner as in Example 1 except that a spun yarn made of polyethylene terephthalate fiber having a cotton count of 20 s / 1 (266 Dtex) was used as the sheath yarn.
[0063]
The cut resistance of this glove was 3.0 (N), which was only about 50% of the cut resistance of the glove containing the PPTA fiber of Example 1. Further, the heat melting property is first grade, and it is easy to make a hole in the melt by heat, and there is a problem in heat resistance.
[0064]
[Example 2]
The same 78 dtex polyurethane elastic fiber as used in Example 1 is used as the core yarn, and the same cotton count 20s / 1 (295 Dtex single yarn) used in Example 1 is used as the sheath yarn. A covering process was performed under the conditions described above to obtain a double coated yarn.
[0065]
Draft: 3.0 times Number of twists: S160T / m
Number of upper twists: Z120T / m
Spindle speed: 5000rpm
Winding ratio: 93.0%
The obtained double-coated yarn has a tensile strength of 6.4 cN / dtex, a limiting oxygen index of 26 , an elongation at 5 cN load of 20%, a residual strain of 4.8%, and has good stretchability. And it was excellent in combustion resistance.
[0066]
Two double coated yarns composed of the obtained PPTA fiber single fiber bundles were aligned and supplied to an SFG-13 gauge type glove knitting machine (Shimane Seiki Seisakusho Co., Ltd.) to knitting the gloves.
[0067]
The cut resistance of this glove is 6.2 (N), it has high cut resistance, thermal meltability is 5th grade, there is no hole perforation due to heat, and it is rich in elasticity, so it feels good to wear, and the automotive industry It was suitable as a highly safe working glove for use in sheet metal work, handling aluminum building materials, and handling glass equipment such as beer bottles.
[0068]
[Example 3]
Example 1 except that a high-strength polyvinyl alcohol fiber having a tensile strength of 13 cN / dtex, a single yarn fineness of 0.17 tex, and a fiber length of 51 mm obtained by the method disclosed in Japanese Patent Publication No. 07-033604 was used as a raw material fiber. A coated yarn was obtained in exactly the same manner. Next, a stretchable glove was obtained using this coated yarn with a 13 gauge glove knitting machine similar to that in Example 1.
[0069]
The cut resistance of this glove was 5.8 (N), which was higher than the cut resistance 3 (N) of Comparative Example 1.
[0070]
Further, the thermal meltability is 5th grade, and it is difficult to form a melt hole by heat, which is also superior to Comparative Example 1 in this respect.
[0071]
[Table 1]

[0072]
【The invention's effect】
Protective gloves using the coated yarn of the present invention are excellent in heat resistance and cut resistance, have excellent elasticity, fit well in the hand and have good workability, work in heat resistant protective gloves, construction industry, forestry industry, etc. It is useful for protective gloves for sports, various sports gloves, and various other protective gloves.
[0073]
These results are shown in Table 1.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing an example of a coated yarn of the present invention.
FIG. 2 is a schematic diagram showing an example of a method for producing a coated yarn of the present invention.
[Explanation of symbols]
(A): Core yarn (B): Sheath yarn (C): Cover yarn 1: Core yarn 2: Sheath yarn 3: Rolling yarn feeding roller 4: Feed roller 5: Lower spindle 6: Lower belt 7: Upper spindle 8: Upper belt 9: H bobbin 10: Snell guide 11: Delivery roller 12: Guide bar 13: Take-up roller 14: Cheese

Claims (9)

A protective glove comprising a coated yarn using an elastic fiber as a core yarn and a short fiber bundle having a heat resistance and / or high strength fiber length of 25 to 1000 mm as a sheath yarn. The heat-resistant and / or high-strength short fiber bundle has a limiting oxygen index measured based on JIS K 7201 of 24 or higher, and a thermal decomposition temperature measured based on JIS K 7120 of 400 ° C. or higher. The protective glove according to claim 1, wherein the protective glove is provided. The protective glove according to claim 1 or 2, wherein the heat-resistant and / or high-strength short fiber bundle is an aramid fiber. The protective glove according to claim 3, wherein the aramid fiber is a para-aramid fiber. The protective glove according to claim 1 or 2, wherein the heat-resistant and / or high-strength short fiber bundle is a polyparaphenylene terephthalamide fiber. The protective glove according to claim 1 or 2, wherein the heat-resistant and / or high-strength short fiber bundle is a polyvinyl alcohol fiber having a tensile strength of 9 cN / dtex or more. The protective glove according to any one of claims 1 to 6, wherein the elastic fiber is a polyurethane-based elastic fiber. The protective glove according to any one of claims 1 to 7, wherein the protective glove is composed of a knitted fabric structure. The protective glove according to any one of claims 1 to 8, wherein the protective glove includes 10 wt% or more of the coated yarn.

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