JP2021161567A - Fabric for protective products and textile product using the same - Google Patents

Abstract

To provide a fabric for a protective product which is excellent in cut resistance, lightweightness, ease of attachment, and washing resistance and is suitable as an inner protective material such as an inner glove, and to provide a textile product using the same.SOLUTION: There are provided a fabric for protective products made by using a spun yarn containing aramid fibers, which has a thickness of 1.0 mm or less measured according to JIS L 1096 8.4 method, and has a thickness change rate of ±5% or less after 5 times of washing treatment by flat drying according to JIS L 0217-103 method, and whose dimensional change rate in the vertical direction and the horizontal direction after 5 times of washing treatment is ±5% or less as well as textile products using the fabric for protective products such as an inner glove, an inner wear, a wrist guard, an arm cover, and a sock.SELECTED DRAWING: None

Description

The present invention relates to a fabric for a protective product and a textile product using the same.

Protective products such as gloves, arm covers, and apron made of cut-resistant fibers such as aramid fibers are less likely to be cut by blades, so they are compared to protective products made of fibers such as cotton and woolly nylon. Remarkably high cut resistance. As a result, cut accidents occur, such as work with processed sheet metal products with burrs, work with fragile glass products, or work with garbage collection that handles general dust that may contain metal pieces or glass pieces. It has been widely used to protect the hands and body of workers in easy work. However, there is a strong demand for safer protective products from the workers and the like. For example, when wearing protective gloves, in general, one piece of the gloves is often worn for work, and further cut resistance is required depending on the work content, and gloves need to be replaced due to dirt or the like. Often, gloves of the same type, leather sewn gloves, rubber gloves, etc. are layered on top of work gloves. Therefore, those that are lightweight, easy to wear (easy to wear in layers), and comfortable to wear (easy to work) are desired.

On the other hand, in agricultural work, horticulture, light work, cooking work, etc., textile products such as gloves made of fibers such as cotton thread and woolly nylon are not only easy to wear but also have good breathability, so they are worn. It is suitable as an inner glove when wearing layers because it can reduce the feeling of stuffiness. However, since the dimensional change after washing is very large, the wearability and the wearing feeling when reused are remarkably deteriorated. In addition, functions such as cut resistance and heat resistance are significantly inferior to those of aramid fibers.

However, in general, high-strength fibers such as aramid fibers have excellent cut resistance but are stiff due to their high rigidity, and cutability and wearability are in a mutually competing relationship.

Further, in work gloves, work clothes, etc., it is not preferable to give the wearer a feeling of fatigue or discomfort that hinders the work, and even if it is unavoidable, these must be the minimum allowed. Even if it has excellent cut resistance, in protective products such as gloves, irritation of hard fiber ends gives the wearer a discomfort such as a tingling sensation, so there is less tingling sensation, and protection with excellent cut resistance and wearability. Industrial production of products is extremely important.

Since aramid fibers are generally less likely to be cut as the single yarn fineness increases, it has been considered effective to increase the single yarn fineness in order to improve the cut resistance of the protective fabric. In Patent Document 1, by using a spun yarn twin yarn having a cotton count of 20 made of aramid short fibers having a single yarn fineness of 3.9 to 4.4 dtex, the cut resistance is higher than that of a conventional product having a single yarn fineness of 1.7 dtex. Has been shown to improve. However, the gloves knitted by supplying aramid spun yarn with a cotton count of 20 to a 7-gauge glove knitting machine weighs 60 g / pair and the total thickness of the instep palm is 4.0 mm, so it is lightweight and can be worn in layers. There is a problem in terms of wearability at the time, and it is not suitable for inner gloves.

Patent Document 2 proposes a rubber glove in which an ultra-thin fiber sheet made of an elastic stretch material is bonded to the inner surface of the rubber glove as a glove that does not generate fluff or fall off due to repeated use or washing. However, rubber gloves are not suitable for inner gloves because they give the wearing user a feeling of discomfort due to stuffiness and the like. Further, Patent Document 3 discloses a thin inner glove in which a yarn using a meta-aramid fiber spun yarn and a wool spun yarn at a ratio of 72/28 is knitted by a 10 gauge glove knitting machine, but the weight is heavy. Since it weighs 30 g / pair, there are problems in terms of lightness and wearability. Further, Patent Document 4 describes a warp knitting machine having a gauge number of 20 to 32 gauge using a fine denier (10 to 100 denier) yarn in order to obtain a thin knitted glove with good workability and fit. Although a glove with an elastomer or resin anti-slip is disclosed for the knitted glove knitted in, it is not a glove that is washed and used repeatedly because it is coated.

Therefore, a cloth for a protective product having cut resistance, light weight, wearability and washing resistance has not been obtained at present.

Japanese Unexamined Patent Publication No. 9-157981 Japanese Unexamined Patent Publication No. 2011-127265 JP-A-2010-203012 Republished 2016-208694

In view of the background of the prior art, the present invention is a cloth for a protective product which is excellent in cut resistance, light weight, wearability and washing resistance and is suitable as an inner protective material such as an inner glove, and a fiber using the same. It is intended to provide products.

The present invention employs the following means in order to solve such a problem. That is, the present invention is as follows.

(1) A fabric made of spun yarn containing aramid fibers.
The thickness measured according to the JIS L 1096 8.4 method is 1.0 mm or less.
JIS L 0217-103 method The rate of change in thickness after 5 washing treatments by flat-drying is ± 5% or less, and the rate of dimensional change in the vertical and horizontal directions after 5 times of washing treatment is ± 5%. A cloth for a protective product, which is characterized by the following.
(2) The cloth for protective products according to (1) above, wherein the spun yarn is composed of 100 or less single fibers / single yarn.
(3) The cloth for protective products according to (1) or (2) above, wherein the spun yarn is a single yarn or a twin yarn having an English cotton count of 40 to 70.
(4) The cloth for a protective product according to any one of (1) to (3) above, wherein the cloth is a knit, and the number of gauges of the weft knitting machine for knitting the knit is 15 gauge to 21 gauge.
(5) Any textile product selected from the group consisting of inner gloves, inner wear, wrist guards, arm covers and socks, which are made of the cloth for protective products according to any one of (1) to (4) above. ..
(6) The above-mentioned (5), wherein the textile product is an inner glove, which is used as an inner glove for an outer glove having heat insulation or low dust generation, or an outer glove made of leather, natural fiber or aramid fiber. Textile products.

According to the present invention, by using the aramid fiber spun yarn having a small number of single fibers (large cotton count), although it is thin, unlike cotton and nylon, the thickness and dimensions of the fabric can be increased even if it is washed multiple times. It is possible to provide a fabric for a protective product having a very small rate of change. The fabric is suitable as a textile product such as inner gloves because it is excellent in light weight, wearability (glove layering property), and cut resistance. Due to the low fineness of the spun yarn, it is possible to provide high gauge gloves having a weft knitting machine having a gauge of 15 gauge or more.

Since the cloth for a protective product of the present invention has excellent heat resistance, it can be effectively used as a cut-resistant inner glove when the outer glove is a heat insulating glove or a low dust generation glove.
Further, since the cloth for protective products of the present invention has excellent cut resistance, when the outer gloves are leather gloves or natural fiber gloves such as cotton, linen, and silk, they can be worn repeatedly as inner gloves. , The shortcomings of outer gloves can be compensated.
Further, since the cloth for protective products of the present invention has excellent washing resistance (small dimensional change after washing), it becomes dirty by being repeatedly worn as inner gloves of cut-resistant gloves such as aramid fiber gloves. Outer gloves can be replaced efficiently.

Dimensional explanatory view in the length direction and the width direction of the textile product (glove) produced in the examples.

Hereinafter, the protective fabric of the present invention will be described in detail.

Since aramid fibers generally become more difficult to cut as the single yarn fineness increases, it has been considered effective to increase the single yarn fineness in order to improve the cut resistance of the fabric. The fabric is light and tends to be inferior in wearability. In the present invention, efforts have been made to improve the lightness and wearability of the aramid fiber fabric without significantly reducing the cut resistance of the fabric, and conventionally, yarns having cotton counts of 20 to 40 have been used. A major review was made on the thread composition. As a result, we succeeded in obtaining a thin aramid fiber fabric by using a fine count spun yarn, which is difficult to obtain as a spun yarn because the number of single fiber constituents at the time of spinning is small. It solves the problems of lightness and wearability at once while maintaining the original characteristics.

In the present invention, examples of the aramid fiber used for the spun yarn include meta-type aramid fiber and para-type aramid fiber. The spun yarn may be a blended product obtained by blending meta- or para-aramid fibers at an arbitrary blending ratio, or a 100% para-aramid fiber product, and can be selected according to the required characteristics of the protective product fabric. Among them, a spun yarn containing a para-aramid fiber is preferable from the viewpoint of excellent cut resistance and heat resistance. Commercially available products of such para-aramid fibers include polyparaphenylene terephthalamide fiber (manufactured by Toray DuPont Co., Ltd., trade name "Kevlar" (registered trademark)), copolyparaphenylene-3,4'-diphenyl ether terephthalamide fiber. (Made by Teijin Limited, trade name "Technora" (registered trademark)), etc. Among these fibers, polyparaphenylene terephthalamide fiber having excellent cut resistance is particularly preferable.

Most of the conventional work gloves type cut-resistant gloves that use only organic fibers are generally made with a glove knitting machine typified by 7 gauge or 10 gauge, and among these, 7 gauge glove cutting that shows high characteristics. The creativity is approximately 1.15 to 1.30 kg, as disclosed in Patent Document 1. If the incision force is about 0.25 kg or more, it can be said that the incision resistance is sufficiently high as an inner glove. However, if the single fiber fineness exceeds 10.0 dtex, the number of single fibers in the spun yarn having a large cotton count decreases, which makes it difficult to manufacture the spun yarn. The layered wearability of gloves) and workability are reduced, and it becomes difficult to eliminate the tingling sensation.

In the spun yarn of the present invention, the single fiber fineness of the aramid fiber is preferably in the range of 0.8 to 10.0 dtex, more preferably 1.0 to 6.5 dtex, and particularly preferably 1.2 to 4.5 dtex. It is better to use the short fibers in. Such a single fiber fineness is defined as a test method specified in JIS T 8052: 2005 "Protective clothing-Mechanical properties-Cut resistance test method for sharp objects" when the single fiber fineness is less than 0.8 dtex. This is because the cut resistance measured based on the above is insufficient.

The fiber length of the short fiber facilitates workability when optimizing the twist coefficient of the spun yarn, and at the same time eliminates the tingling sensation and selects the optimum fiber length that can improve workability and wearability. Is good. The average fiber length is preferably in the range of 35 to 160 mm, more preferably in the range of 45 to 130 mm. Further, in order to obtain good spinnability, the number of crimps of the short fibers is preferably about 3 to about 12 ridges / inch.

The number of single fibers of the spun yarn (single yarn) is preferably 100 or less / single yarn, more preferably 95 or less, and further preferably 90 to 25.

The spun yarn of the present invention may be made by producing aramid fibers by a conventional method in cotton spinning, rayon spinning or worsted spinning equipment. At that time, as the fineness (count) of the spun yarn, an English cotton count of 40 to 70 is preferably used from the viewpoint that a thin cloth can be easily obtained. Here, as the spun yarn becomes thinner, the number of counts increases. If the cotton count is 70 or less, it is possible to obtain a lightweight protective product cloth suitable for the inner protective material, and if the cotton count is lower than 40, the washing resistance of the protective product cloth is lowered. (Dimensional change and thickness change become large).

A preferable form of the spun yarn used for producing the cloth for a protective product is a spun yarn single yarn or a spun yarn twin yarn in which two spun yarn single yarns are aligned and twisted in the opposite direction to the spun yarn single yarn. In addition, a triple yarn obtained by pulling and twisting three single spun yarns may be used. Among these spun yarns, twin yarns are preferable from the viewpoints of tensile strength that can withstand the tension during knitting and excellent cut resistance of the fabric. The count of the spun yarn twin yarn is preferably cotton count 40 / 2s to 70 / 2s, and if it is within the above range, the workability is not significantly impaired. More preferably, it is No. 40 / 2s to No. 60 / 2s, and even more preferably No. 50 / 2s to No. 60 / 2s.

In the spun yarn of the present invention, it is preferable to optimize _{the single yarn twist coefficient (K 1 ) and the number of twists (T 1} , T ₂ ) of the single yarn and the twin yarns in which the single yarns are aligned. When twisting a single yarn of a spun yarn, _{it is preferable that the single yarn twist coefficient (K 1} ) obtained by the following equation is in the range of 2.0 to 4.0. When the single yarn twist coefficient (K ₁ ) is smaller than 2.0, the entanglement between the short fibers becomes too weak, and the ends of the short fibers protrude from the spun yarn, resulting in a fabric (glove) with a lot of tingling sensation. Further, when the single yarn twist coefficient (K ₁ ) is larger than 4.0, the twist becomes too strong, the occurrence of double twist becomes strong, the workability deteriorates, the tensile strength of the spun yarn also decreases, and the texture Is also inferior. A more preferred single yarn twist coefficient (K ₁ ) is in the range of 2.5 to 3.8. The number of single yarn twists (T ₁ ) is preferably 15 to 30 t / inch, more preferably 18 to 25 t / inch. The twisting direction of the spun yarn single yarn may be either S or Z.

Twist coefficient K = T / s ^1/2
T; number of twists (t / inch)
s; cotton count

Two single spun yarns to which the above-mentioned predetermined twist (twist number T ₁ ) has been added are aligned, and a predetermined reverse twist (twist number T ₂ ) is added with a double twister to process the spun yarn twin yarn. The number of twists on the twin yarn (T ₂ ) is preferably 300 to 700 t / m, more preferably 400 to 600 t / m.
The upper twist twist coefficient (K ₂ ) of the twin yarns obtained by the above formula is preferably in the range of 2.0 to 4.0. When the twin yarn twist coefficient (K ₂ ) is smaller than 2.0, the ends of the short fibers protrude from the spun yarn, resulting in a glove with a lot of tingling sensation. Further, when the twin yarn twist coefficient (K ₂ ) is larger than 4.0, the twist becomes too strong, the occurrence of double twist becomes strong, the workability deteriorates, the tensile strength of the spun yarn also decreases, and the texture. Is also inferior. A more preferred twin yarn twist coefficient (K ₂ ) is in the range of 2.0 to 3.3. At this time, the ratio (T ₂ / T ₁ ) (%) of the number of single yarn lower twists (T ₁ ) and the number of twin yarn upper twists (T ₂ ) of the spun yarn is 30 to 95%, more preferably 50 to 90. It is desirable to twist so that it is in the range of%.

The spun yarn of the present invention can be produced by a conventionally known spinning means by cutting aramid filaments having a single yarn fineness of 0.8 to 10.0 dtex and converting them into staples. A staple is used as a sliver, and a ring twisting machine or the like is used to twist the staples with a predetermined twist coefficient, and then a double twister or the like is used to obtain a predetermined twist number ratio. The tensile strength of the spun yarn of the present invention thus obtained is at least 0.4 kg for a single yarn having a cotton count of 50 / s and at least 1.4 kg for a twin yarn having a cotton count of 50 / 2s. From this, the fabric made of the spun yarn of the present invention is also excellent in terms of tensile strength, and is therefore suitable as a fabric for various inner protective products such as inner gloves.

Further, in the case of producing the spun yarn of the present invention, other short fibers (for example, cotton, rayon, polyester, nylon, etc.) can be mixed in an amount of about 30% by mass or less within a range that does not interfere with the effect of the present invention. .. Aramid fibers (particularly preferably para-aramid fibers) are preferably in the range of 70 to 100% of the total mass of the spun yarn.

Furthermore, the textile products of the present invention may be composed entirely of the fabrics for protective products of the present invention, or they may be partially used. For example, in work gloves, a protective product cloth can be used for a specific part such as a fingertip part or a palm part depending on the work content. If necessary, the fabric for protective products may be coated with a resin. When organizing glove is preferably the basis weight of palm portion'll knitting to be in the range of 70~220g / m ^2, by the basis weight 70 g / m ² or more, excellent cut resistance, the resistance to washing Inner gloves can be obtained, and by reducing the basis weight to 220 g / m ² or less, the gloves are lightweight and have good layerability. Gloves with a basis weight ^{of more than 220 g / m 2} on the palm are not suitable as inner gloves because the gloves are thick. More preferably, the basis weight of the palm portion is in the range of ^{85 to 200 g / m 2.} The number of spun yarns constituting in this case is related to the thickness (count) of the spun yarn and the basis weight of the cloth for the protective product, but if it is within each range, one or a plurality of spun yarns can be used.

The cloth for protective products of the present invention has a thickness of 1.0 mm or less measured based on the thickness measuring method according to JIS L 1096: 2010 8.4. It is preferably 0.9 mm or less. Therefore, when knitted into gloves, it is possible to obtain gloves that are thin and have excellent layerability, which has never been seen before. In addition, the weight of the gloves (per pair) is as light as that of woolly nylon gloves because the spun yarn having a large count is used. Further, since the spun yarn containing the aramid fiber is used, gloves having excellent washing resistance can be obtained, and the thickness change rate (%) of the gloves after washing 5 times, the vertical (length) direction and the horizontal (width) of the gloves. The dimensional change rate in the direction can be achieved to be ± 5% or less. The washing of textile products is based on the method described in JIS L 0217-103, and the thickness change rate and the dimensional change rate are based on the method described in JIS L 1096 8.39.8. The thickness change rate and the dimensional change rate are preferably ± 2% or less, more preferably ± 1% or less.

Further, when knitting a knitted fabric as a cloth for a protective product, the number of gauges of the weft knitting machine to be used is preferably set to 15 gauge or more, more preferably 15 to 21 gauge, and the washing resistance of gloves is ensured. From this point of view, it is better to use 15 to 18 gauge.

Since the cloth for protective products of the present invention is particularly suitable for applications that require cut resistance to the extent that it is necessary to wear gloves, arm covers, socks, etc., these cloths are used as inner gloves, protective materials, etc. , Can be used for various textile products. This includes those used for direct protection purposes as well as those that eventually fulfill the protective function. Specific examples thereof include work or industrial inner gloves, inner wear, wrist guards, arm covers, socks and the like. Other uses include, but are not limited to, work clothes for welding, racing suits, sportswear, ski wear, underwear such as skate wear, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. The method for measuring each physical property value in the following Examples and Comparative Examples is as follows.

[Single fiber fineness]
JIS L 1013: 2010 Chemical fiber filament yarn test method 8.3 Measured by the B method (simple method).

[Tensile strength and elongation of spun yarn]
The tensile strength (N) of the spun yarn was measured according to JIS L 1095: 2010 "General spun yarn test method" 9.5.

[Glove cutting power]
The cut force (N) of the palm of one glove was measured in accordance with JIS T 8052: 2005 "Protective clothing-Mechanical properties-Cut resistance test method for sharp objects". The cut resistance (N) was divided by the basis weight of the woven or knitted fabric to obtain the cut resistance. It was judged that the larger the value of the incision force, the more difficult it was to cut.

[Wash resistance of gloves]
It was washed according to the test method of JIS L 0217 103, and then laid flat and dried. No finishing with a dry iron. After performing the washing treatment 5 times, the total length (length direction) and the four body (width direction) dimensions of the gloves were measured according to the JIS L 1096 8.2.2 length (see FIG. 1). , JIS L 1096 8.4 thickness, the thickness of the palm was measured, and the dimensional change rate and the thickness change rate were calculated according to JIS L 1096 8.39.8 calculation.

ΔL = [(L _2- L ₁ ) / L ₁ ] × 100
(Here, ΔL: dimensional change rate (%), L ₁ : length before washing treatment (mm), L ₂ : length after washing treatment (mm))

ΔD = [(D _2- D ₁ ) / D ₁ ] × 100
(Here, ΔD: thickness change rate (%), D ₁ : thickness before washing treatment (mm), D ₂ : thickness after washing treatment (mm))

(Example 1)
As aramid short fiber threads, para-aramid fibers with a fineness of 1.67 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength 20.3 cN / dtex) are stapled and have a fiber length. 100% para-aramid short fibers of 51 mm and about 8 crimps / inch were used.
This was made into a sliver by passing it through a cotton-opening machine, a card, and a kneading strip in that order. Next, this is set in a ring spinning machine, and the number of _{twists (T 1} ) is 20.3 t / inch, the twist coefficient is 2.87, and the twist direction is Z twist. A single yarn of 910 g of spun yarn was obtained. Two of these spun yarns are aligned, and _{a reverse (S) twist with a twist number (T 2} ) of 519 t / m is added with a double twister to obtain a twin yarn with a yarn count of 50/2 (cotton count) and a tensile strength of 2050 g. Obtained.
Furthermore, two twin yarns were pulled together and supplied to a 15 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

(Example 2)
As aramid short fiber threads, para-aramid fibers with a fineness of 2.5 dtex (manufactured by Toray DuPont Co., Ltd.) are stapled, and the fiber length is 51 mm, and the number of crimps is about 8 threads / inch para-aramid short fibers. 100% was used.
This was made into a sliver by passing it through a cotton-opening machine, a card, and a kneading strip in that order. Next, this is set in a ring spinning machine, and the number of _{twists (T 1} ) is 20.5 t / inch, the twist coefficient is 2.90, and the twist direction is Z twist. A single yarn of 450 g of spun yarn was obtained. Two of these spun yarns are aligned and _{a reverse (S) twist with a twist number (T 2} ) of 525 t / m is added with a double twister to produce a twin yarn with a yarn count of 50/2 (cotton count) and a tensile strength of 1430 g. Obtained.
Furthermore, two twin yarns were pulled together and supplied to a 15 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

(Example 3)
As aramid short fiber threads, para-aramid fibers with a fineness of 3.3 dtex (manufactured by Toray DuPont Co., Ltd.) are stapled, and the fiber length is 51 mm, and the number of crimps is about 8 threads / inch para-aramid short fibers. 100% was used.
This was made into a sliver by passing it through a cotton-opening machine, a card, and a kneading strip in that order. Next, this was set in a ring spinning machine, and the number of _{twists (T 1} ) was 24.8 t / inch, the twist coefficient was 3.50, and the twist direction was Z twist. A single yarn of 510 g of spun yarn was obtained. Two of these spun yarns are aligned and _{a reverse (S) twist with a twist number (T 2} ) of 556 t / m is added with a double twister to produce a twin yarn with a yarn count of 50/2 (cotton count) and a tensile strength of 1460 g. Obtained.
Furthermore, two twin yarns were pulled together and supplied to a 15 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

(Example 4)
As aramid short fiber threads, para-aramid fibers with a fineness of 1.67 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength 20.3 cN / dtex) are stapled and have a fiber length. 100% para-aramid short fibers of 51 mm and about 8 crimps / inch were used.
This was made into a sliver by passing it through a cotton-opening machine, a card, and a kneading strip in that order. Next, this is set in a ring spinning machine, and the number of _{twists (T 1} ) is 22.5 t / inch, the twist coefficient is 2.90, and the twist direction is Z twist. A single yarn of 670 g of spun yarn was obtained. Two of these spun yarns are aligned and _{a reverse (S) twist with a twist number (T 2} ) of 505 t / m is added with a double twister to produce a twin yarn with a yarn count of 60/2 (cotton count) and a tensile strength of 1620 g. Obtained.
Furthermore, two twin yarns were pulled together and supplied to a 15 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

(Example 5)
Using one twin yarn of the spun yarn obtained in Example 1, the glove was knitted by supplying it to an 18 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.).

(Example 6)
Using one twin yarn of the spun yarn obtained in Example 2, the glove was knitted by supplying it to an 18 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.).

(Example 7)
Using one twin yarn of the spun yarn obtained in Example 4, the glove was knitted by supplying it to a 21 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.).

(Comparative Example 1)
As aramid short fiber threads, para-aramid fibers with a fineness of 1.67 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength 20.3 cN / dtex) are stapled and have a fiber length. 100% para-aramid short fibers of 51 mm and about 8 crimps / inch were used. This was made into a sliver by passing it through a cotton-opening machine, a card, and a kneading strip in that order. Next, this is set in a ring spinning machine, and the number of _{twists (T 1} ) is 13.0 t / inch, the twist coefficient is 2.90, and the twist direction is Z twist. A single yarn of 2173 g of spun yarn was obtained. Two of these spun yarns are aligned and _{a reverse (S) twist with a twist number (T 2} ) of 331 t / m is added with a double twister to produce a twin yarn with a yarn count of 20/2 (cotton count) and a tensile strength of 4724 g. Obtained.
Furthermore, five twin yarns were pulled together and supplied to a 7-gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

(Comparative Example 2)
Two woolly nylon fibers with a fineness of 78 dtex were pulled together and supplied to an 18 gauge type glove knitting machine (Shima Seiki Seisakusho Co., Ltd.) to knit the gloves.

The characteristics of the spun yarns obtained in Examples 1 to 7 and Comparative Examples 1 and 2 are summarized in Table 1, and the characteristics of gloves are summarized in Table 2.

From Tables 1 and 2, the spun yarn of the present invention has a small number of single fibers and a small fineness, but has sufficient properties for knitting cut-resistant gloves in terms of tensile strength and elongation. Was there. Further, although the knitted gloves weigh 10 g or less and have a thickness of 1.0 mm or less, which are very thin, they have more than twice the cut force of the woolly nylon (double thread) gloves. Further, the thickness change rate and the dimensional change rate after washing were very small.

The cloth for protective products using the spun yarn of the present invention is suitably used as inner gloves for work or industry, and is also widely used as an inner textile product when wearing various clothes such as racing suits and sportswear. Can be used.

Claims (6)

A fabric made of spun yarn containing aramid fibers.
The thickness measured according to the JIS L 1096 8.4 method is 1.0 mm or less.
JIS L 0217-103 method The rate of change in thickness after 5 washing treatments by flat-drying is ± 5% or less, and the rate of dimensional change in the vertical and horizontal directions after 5 times of washing treatment is ± 5%. A cloth for a protective product, which is characterized by the following. The cloth for a protective product according to claim 1, wherein the spun yarn is composed of 100 or less single fibers / single yarn. The fabric for a protective product according to claim 1 or 2, wherein the spun yarn is a single yarn or a twin yarn having an English cotton count of 40 to 70. The cloth for a protective product according to any one of claims 1 to 3, wherein the cloth is a knit, and the number of gauges of the weft knitting machine for knitting the knit is 15 gauge to 21 gauge. Any textile product selected from the group consisting of inner gloves, inner wear, wrist guards, arm covers and socks, which uses the cloth for protective products according to any one of claims 1 to 4. The textile product according to claim 5, wherein the textile product is an inner glove, which is used as an inner glove for an outer glove having heat insulation or low dust generation, or an outer glove made of leather, natural fiber or aramid fiber.

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