JP2020158919A - Cut wound resistance glove and manufacturing method thereof - Google Patents

Abstract

To provide a glove capable of simplifying a manufacturing process of a yarn, having better knitting performance and having better cut wound resistance and low dust emission, and a manufacturing method of the glove.SOLUTION: The cut wound resistance glove is (i) a glove knitted by a single or a plurality of lines of thread pulled in line of a fiber line of thread with a fineness of 440 - 1,800 dtex composed only of an organic fiber processed with a fluid injection (not containing an elastic fiber, though) or (ii) a glove knitted by a foundation yarn composed of the line of thread and a flexible adding yarn, and a basis weight is 200-750 g/m2 and satisfies the following (1) and (2) at the same time. (1) Dust is emitted by JIS B 9923 method and the number of emitted dust particles having a diameter of the dust equal to or greater than 0.1 μm measured by a particle counter is equal to or smaller than 100,000/m3 per two gloves, and (2) a cutting load measured by a cut wound resistance test relative to a protective cloth, mechanical feature, sharp object JIS T 8502 is 5-15 N.SELECTED DRAWING: Figure 1

Description

The present invention relates to cut resistant gloves. More specifically, the present invention relates to cut-resistant gloves that suppress the amount of dust generated from the threads during thread manufacturing and knitting.

A yarn containing an elastic yarn and a cutting-resistant yarn, a yarn having a tarmi on the yarn surface or a composite yarn having a randomly entwined loop structure, is known as a yarn capable of imparting texture and cut resistance to a woven or knitted fabric. (For example, Patent Documents 1 and 2). Examples of the yarn include fibers such as aramid, high molecular weight polyethylene, high molecular weight polyvinyl alcohol, and high molecular weight polyacrylonitrile. However, in Patent Documents 1 and 2, the elastic yarn and the aramid filament yarn or the aramid crimped yarn are simultaneously overfed. Therefore, in Cited Document 1, it is necessary to apply tension to the elastic yarn, and in Patent Document 2, it is necessary to use two types of twisted yarns (S and Z) so as not to cause twisting at the time of knitting.

It is known that even in the case of cutting-resistant yarn that does not contain elastic yarn, gloves knitted with yarn having loops or tarmi on the surface fit the body well, have good workability, and can suppress the generation of fluff and dust. (Patent Document 3). Examples of the cutting-resistant yarn include heat-resistant fibers such as aramid fiber, polyparaphenylene benzobisoxazole fiber, polybenzimidazole fiber, polyamide-imide fiber, and polyimide fiber.

However, in the case of the yarn of Patent Document 3, since a yarn composed of a multifilament yarn having a kink band that is less likely to generate fluff and dust is used, a pretreatment for imparting the kink band is required. Specifically, the twisted multifilament yarn is heat-set using high-temperature and high-pressure steam and then untwisted, or the multifilament yarn is false-twisted and crimped at a high temperature and then subjected to relaxation heat treatment. Therefore, the generation of fluff and dust can be suppressed, but the untwisting process of untwisting the twisted yarn before knitting is indispensable, and the yarn is easily twisted during knitting (the knitting property is inferior).

There is also known a method of knitting gloves using a composite yarn in which an elastic yarn (core yarn) is coated with a cutting-resistant yarn (sheath yarn) to suppress dust generation of the glove (Patent Document 4). Examples of the cut-resistant yarn include fibers such as aramid fiber in which liquid crystal polymer fibers are present on the yarn surface and polyparaphenylene benzobisoxazole fiber. The composite yarn has an advantage that fluff and dust that cause dust generation are less likely to be generated as compared with a coated yarn using a spun yarn as a sheath yarn. However, since the false twisted yarn is used as the cutting resistant yarn, a step of untwisting the false twisted yarn is required, and two types of twisted yarns (S and Z) are used to prevent twisting during knitting. There is a need.

In the gloves described in Patent Document 4, the number of dust particles having a particle size of 0.5 μm or more is a certain value or less, and the ISO standard uses particles of 0.1 μm or more as a standard. Gloves used in precision parts assembly factories, operating rooms, treatment rooms, etc. have cut resistance and low dust generation with cleanliness of class 5 (with 100,000 or less fine particles of 0.1 μm or more) or higher. Sex is desired.

It is also known that protective gloves are knitted with fluid-processed yarns of ultra-high molecular weight polyethylene fibers and polyketone fibers, which are relatively less likely to generate fluff (Patent Documents 5 and 6). However, the cut resistance and low dust generation of gloves knitted with organic fiber threads are in conflict with each other, and the material of the thread (the property of the thread), the processing method (the property of the thread), and the method of knitting the glove At present, it is difficult to obtain gloves that have both cut resistance and low dust generation and that satisfy the fit (wearability) when worn.

Japanese Patent Publication No. 2004-538387 (Claims, etc.) Japanese Unexamined Patent Publication No. 2013-204202 (Claims, Table 1, etc.) Japanese Unexamined Patent Publication No. 2005-054294 (Claims, Table 1, etc.) Japanese Unexamined Patent Publication No. 2013-194347 (Examples, Table 1, etc.) Japanese Unexamined Patent Publication No. 2009-07930 (Claims, [0019], etc.) JP-A-2005-248345 (Claims, [0007], etc.)

The present invention has been made in view of the background of the prior art, and is a glove that can simplify the yarn manufacturing process, has good knitting property, and has excellent cut resistance and low dust generation. An object of the present invention is to provide a method for manufacturing the glove.

In order to solve the above problems, the present inventors have conducted diligent studies. Findings obtained from the examination results of gloves and various threads used for them, that is, the knitting property and cut resistance of gloves differ depending on the manufacturing method of threads even when threads of the same material are used, and gloves. The details of the dust generation mechanism are unknown, but gloves knitted with fluid-injected fibers have 100,000 dust particles with a particle size of 0.1 μm or more when dust is generated by the tumbling method. It was made based on the finding that the value is as follows (per two gloves).

That is, in the present invention, (i) fiber yarns having a fineness of 440 to 1,800 dtex consisting of only fluid-injected organic fibers (however, not including elastic fibers) are knitted with a single yarn or a plurality of yarns aligned. Gloves, or (ii) gloves knitted with a ground thread made of the above-mentioned threads and an elastic supplementary thread.
The gloves (i) and (ii) are provided with cut-resistant gloves having a basis weight in the range of 200 to 750 g / m ² and simultaneously satisfying the following (1) and (2). To do.
(1) The number of dust particles with a particle size of 0.1 μm or more when dust is generated by the JIS B 9923 tumbling method and measured with a particle counter is 100,000 / m ³ or less per two gloves.
(2) JIS T 8502 Protective clothing-Mechanical properties-The value of the cutting load measured in the cut resistance test for sharp objects is in the range of 5 to 15 N.

Further, the present invention comprises (i) a single yarn or a plurality of yarns having a fineness of 440 to 1,800 dtex composed of only organic fibers (however, not including elastic fibers) that have been fluid-injected. , (Ii) The ground yarn made of the yarn and the elastic splicing yarn are fed to a glove knitting machine having a gauge number of 7 gauge to 15 gauge, and the contact surface with the yarn is formed in a satin finish. Provided is a method for producing a cut resistant glove, which is knitted through a tension adjuster so that the knitted glove satisfies the above-mentioned (1) and (2) at the same time.

According to the present invention, it is possible to simplify the manufacturing process of fiber threads made of only organic fibers, and it is possible to provide gloves having excellent knitting property, cut resistance and low dust generation property. The gloves can be used as work gloves performed in a clean room where cleanliness of JIS (ISO) standard class 5 or higher is required. It is also suitable as work gloves that carry the risk of being cut by sharp blades or burrs in normal work.

It is the schematic which shows an example of the fluid injection processing of the organic fiber yarn.

Hereinafter, the present invention will be described in detail.
The cut-resistant glove of the present invention is made by knitting a single yarn or a plurality of yarns having a fineness of 440 to 1,800 dtex, which are made of only fluid-injected organic fibers. The number of lines to be aligned is not particularly limited, but is usually 2 to 5, preferably 2 to 3.
However, organic fibers do not contain elastic fibers. Gloves knitted with threads containing elastic fibers have an advantage of excellent fit when worn, but have a problem in terms of quality control.

The basis weight of the cut-resistant gloves of the present invention is 200 to 750 g / m ² . If the basis weight is 200 g / m ² or more, the cut resistance can be ensured as a work glove, and if the basis weight is 750 g / m ² or less, the knitting property is good. Basis weight of the cut resistant glove, more preferably ^{240~700g / m 2, 270~700g / m} 2 is particularly preferred.

[Organic fiber]
The organic fiber can be appropriately selected from known ones and used, but as a characteristic of the raw yarn, a continuous fiber having a tensile strength of 17.5 cN / dtex or more measured according to JIS L 1013 8.5 is preferable. Used. If the tensile strength is less than 17.5 cN / dtex, it becomes difficult to impart a high degree of abrasion resistance to the fiber yarn, and the above characteristic value (2) may not be satisfied. Preferably, it is 17.5-35 cN / dtex.

The above organic fibers include para-aramid fibers, total aromatic polyester fibers, polyparaphenylene benzobisoxazole fibers, polyketone fibers, polyamideimide fibers, ultrahigh molecular weight polyethylene fibers, and high content from the viewpoint of tensile strength and abrasion resistance. Examples include strong vinylon fiber. One type of organic fiber may be used alone, or two or more types may be used in combination. Among these materials, para-aramid fibers and ultra-high molecular weight polyethylene fibers are preferable because they are excellent in wearing comfort when wearing gloves, and para-aramid fibers are particularly preferable because they are excellent in cut resistance. ..
The ratio of the para-aramid fiber in the organic fiber is preferably 50% by mass or more, more preferably 70 to 90% by mass, and particularly preferably 100% by mass.

The fineness of the fiber threads made of organic fibers is 440 to 1,800 dtex. When a glove is knitted with threads having a fineness of less than 440, the cut resistance is poor when the number of glove is small, and the productivity of the glove is poor when the number of glove is large. On the other hand, if the fineness exceeds 1,800 dex, the knitting property is poor (the knitting machine cutter is difficult to cut). The fineness of the fiber yarn is more preferably 440 to 1,200 dtex, and particularly preferably 600 to 1,000 dtex.
The single fiber fineness of the organic fiber is preferably 0.1 to 10 dtex, more preferably 0.3 to 6 dtex, and particularly preferably 1.0 to 2.5 dtex. If it is less than 0.1 dtex, the strength of the fiber is too weak and it is difficult to form a glove, while if it exceeds 10 dtex, the glove becomes hard.

Commercially available products may be used as the above organic fibers, and examples of the para-aramid fiber include polyparaphenylene terephthalamide fiber (manufactured by Toray DuPont Co., Ltd., trade name "Kevlar" (registered trademark)) and copolyparaphenylene. -3,4'-Oxydiphenylene terephthalamide fiber (manufactured by Teijin Limited, trade name "Technora" (registered trademark)) and the like can be mentioned. Among these, polyparaphenylene terephthalamide fiber is preferable because it is excellent in high strength, high elastic modulus, cut resistance and heat resistance.

In addition, as a total aromatic polyester fiber, Kuraray Co., Ltd., trade name "Vectran", etc., and as a polyparaphenylene benzobisoxazole fiber, Toyobo Co., Ltd., trade name "Zylon", etc., as an ultra-high molecular weight polyethylene fiber. Examples include Toyobo Co., Ltd., product names "Izanas" and "Tsunuga", DSM, product name "Dyneema", Honeywell Co., Ltd., and product name "Spectra".

[Fluid injection processing]
The cut-resistant glove of the present invention is knitted with a single yarn or a plurality of yarns of fluid-processed yarn obtained by subjecting an organic fiber to a fluid injection process. The fluid injection process is a technique for forcibly spraying a fluid such as water, water vapor, or air onto a fiber and disturbing the orientation of the fiber by the flow of the fluid to impart bulkiness. Organic fibers with a tensile strength of 17.5 cN / dtex or more, such as para-aramid fibers, have a high tensile elastic modulus, so that the knitted gloves tend to become hard, but the fluid injection process does not damage the fiber surface. Bulkiness can be imparted.

FIG. 1 shows an example of a fluid injection processing method for organic fibers used in the present invention. The organic fiber thread 1 is supplied from the feed roller 2 to the fluid processing nozzle 3, merges with the fluid supplied from another inflow port 4 to the fluid processing nozzle 3, and is ejected from the fluid processing nozzle 3. It is wound up by the winding bobbin 7 through 5. The organic fiber yarn 1 may be supplied from one raw yarn bobbin, or may be supplied from a plurality of raw yarn bobbins. The organic fiber yarn may be one type, or two or more different materials may be supplied to the fluid processing nozzle and combined.

In fluid injection processing, by selecting processing conditions such as overfeed rate, thread thickness, nozzle shape and fluid pressure, processing speed, etc., from bulky processed yarn with loop-shaped fluff. , Various processed yarns can be obtained depending on the application, up to a slightly bulky yarn having no loop fluff. In general, fine threads (150 dtex or less) are strongly disturbed by fluid injection processing, so that high-strength fibers such as para-aramid fibers may have a fibrilized fiber surface. In the present invention, the fineness of the organic fiber yarn is 440 to 1,800 dtex, and since it is not easily disturbed by the fluid injection process, the loop is hard to be formed, the fiber surface is hard to be damaged, and each yarn is wave-shaped. It is a bulky processed yarn with a bulge that forms a slack shape.

By processing the organic fiber yarn with an overfeed rate of 3 to 10%, more preferably 3 to 8%, and a fluid injection pressure of 1 MPa or less, a fiber yarn suitable for the cut-resistant glove of the present invention can be obtained. In addition, fibrilization of organic fibers and scraping of the fiber surface are suppressed, and fibril fragments and scraps are suppressed from adhering to gloves. The term "fibrillation" refers to a phenomenon in which a single fiber cracks and splits into finer fibers.

The cut-resistant glove of the present invention may contain known fiber threads such as nylon and polyester in addition to the above-mentioned fiber threads made of organic fibers. Known fibers such as nylon and polyester have a ratio of less than about 50% by mass in the yarn in the form of mixed yarn, splicing yarn, etc., as long as the effects of the present invention (low dust generation property, cut resistance) are not impaired. It can be contained in, and more preferably 10 to 30% by mass.

The number of threads constituting the glove may be a plurality of threads as long as the knitting is not hindered. When knitting with a plurality of yarns, some or all of the organic fiber yarns may be used, and in some cases, the other yarn may contain known fibers such as nylon and polyester.

[Glove knitting]
The cut-resistant glove of the present invention can be obtained by (i) feeding only one or a plurality of the above-mentioned fiber yarns to a knitting machine and knitting with a general seamless knitting machine.

The cut-resistant glove of the present invention uses (ii) a single or a plurality of the above-mentioned fibrous yarns as a ground yarn, and the ground yarn and the elastic splicing yarn have a contact surface with the yarn. It is obtained by feeding yarn to a computer glove knitting machine SFG or STJ (manufactured by Shima Seiki Seisakusho Co., Ltd.) via a satin-shaped tension adjuster and plating knitting.
Plating knitting, also called substituting knitting, is a structure in which one thread covers the other using two types of threads. It is possible to knit a splicing thread on the ground thread and put out different threads on the front and back. When knitting a glove, the number of splicing threads is preferably 1 to 3, and more preferably 1 to 2. In addition to the ground yarn and the splicing yarn, known fibers may be knitted in line with any of the above yarns as long as the knitting property, the thickness and texture of the glove, low dust generation and the cut resistance are not impaired. it can.

In plating knitting, one of the ground yarn and the splicing yarn is knitted so as to be arranged on the outer surface or the inner surface. When knitting the ground thread on the outer surface / the splicing thread on the inner surface, use the glove as it is, and when knitting the ground thread on the inner surface / the splicing thread on the outer surface, use the knitted glove inside / A glove is a glove in which the outer surface is reversed and the ground thread is finally arranged on the outer surface / the splicing thread on the inner surface. By doing so, when wearing gloves, the contact between the cut-resistant ground thread and the user's skin can be suppressed, and since the elastic splicing thread comes into contact with the skin, the wearing feeling and sweat absorption are improved, and the outer surface is improved. The cut-resistant ground thread can prevent damage to the inner surface of the splicing thread from damage caused by external sharp objects during work, and can improve the durability of the glove. As for the knitting method, any method can be used depending on the ease of knitting and the like.

As the splicing yarn, a known elastic yarn can be appropriately selected and used. For example, a woolly processed yarn of a synthetic fiber filament yarn such as nylon or polyester, or a core yarn made of a polyurethane elastic yarn is spirally formed with a synthetic fiber filament yarn. Examples thereof include a coated yarn wound in a shape, a fluid mixed yarn of a polyurethane elastic yarn and a synthetic fiber filament yarn, and the like. The fineness (measured fineness) of the stretchable splicing yarn is not particularly limited, but is preferably 30 to 190 dtex, and more preferably 50 to 190 dtex. If it is 30 dtex or more, the texture and elasticity can be imparted to the glove, and if it is 190 dtex or less, the knitting property of the glove is not significantly deteriorated.

In the above-mentioned seamless knitting machine and computer glove knitting machine, the number of gauges set at the time of knitting is preferably set to 7 gauge to 15 gauge, more preferably 7 gauge to 13 gauge. The number of gauges is an index showing the number of needles per inch, and the larger the number, the thinner gloves can be obtained. If the number of gauges is less than 7 gauges, the feeling of wearing gloves is poor, and if the number of gauges exceeds 15 gauges, the gloves do not serve as cut-resistant gloves.

After unwinding the yarn for knitting from the package, the main devices existing in the yarn path of the knitting machine are the yarn guide plate, the first tension adjuster, the felt for refueling, the thread breakage detection spring, and the second. There is a tension adjuster, and it is guided to the yarn feeder via the ceiling spring, and finally knitted by the needle needle. These two tension adjusters are thread guides for applying a stable tension to the yarn, and include a washer tensor, a spring tensor, and the like.

As a surface finishing method for the thread guide, a mirror finish is generally used in addition to the satin finish. When the contact surface of the yarn guide with the yarn is satin finished, the friction with the yarn is reduced, so that the yarn guide near the package can mainly suppress the fibrilization of organic fibers, and thereafter. The thread guide can suppress the phenomenon of fibril fragmentation of organic fibers or scraping of the fiber surface.

The material of the contact surface with the thread of the tension adjuster is, for example, a satin chrome-plated metal; the metal is coated with ceramics such as titanium, alumina, titanium carbide, Teflon (registered trademark), silicon, etc. Examples include ceramics such as titanium, alumina, and zirconia.

In the present invention, it is effective to use a tension adjuster having a satin-like contact surface with the yarn as a tension adjuster which is a yarn guide for applying tension to the yarn. The tension adjuster is a combination of a satin-finished component or a satin-like component (for example, the tension washer surface is a satin finish and the tensor shaft is an alumina ceramic part). And so on. It has the effect of preventing the thread from rubbing and generating a large amount of fibrils and shavings when tension is applied to the thread in order to stably supply the thread. Further, it is preferable to use a ceramic guide for the other thread guide, and a more excellent effect is exhibited.

In the present invention, by using the above threads and adjusting the knitting method, dust is generated by the JIS B 9923 tumbling method, and the number of dust particles having a particle size of 0.1 μm or more as measured by a particle counter. However, cut-resistant gloves having a value of 100,000 pieces / m ³ or less per two gloves can be obtained. Dust number per two gloves, more preferably 70,000 pieces / m ³ or less, more preferably 50,000 / m ³ or less, particularly preferably 40,000 / m ³ or less. The smaller the number of dust generated, the more desirable.

In addition, the cutting load measured in the cut resistance test for JIS T 8502 protective clothing-mechanical properties-sharp objects is in the range of 5 to 15 N. The cutting load is more preferably 6 N or more, further preferably 7 N or more, and particularly preferably 8 N or more. If the cutting load is less than 5N, it cannot play a role as a work cut-resistant glove, and if it exceeds 15N, the higher the cutting resistance, the better the resistance to blades and burrs, but the gloves become hard and the wearing feeling becomes poor.

A known coating material of rubber or resin can be applied to the surface of the low-cutting glove of the present invention, thereby further reducing dust generation.

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 of measuring each physical property value in the following Examples and Comparative Examples is as follows.

[Cut resistance and cut resistance]
The cut force (N) of the palm of the 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. As the measuring machine, TDM-100 manufactured by RGI was used.

[Evaluation method of dust generation amount]
JIS B 9923-1997 (Method for measuring contaminated particles in clean room clothes) using a tumbling type dusting tester installed in a clean room (cleanliness: ISO class 5) with four gloves without clean washing. ) Dust was generated by the tumbling method, and the number of dust generated above each particle size was measured with a particle counter. The number of measurements was 5, excluding the maximum and minimum values, and the average value of the remaining measured values was converted into the amount of dust generated per two gloves. The rotation speed of the drum was 30 rotations / minute, and the flow rate of the exhaust air was 0.0102 m ³ / sec.
Further, the number of dust particles (number of particles) having a particle size of 0.1 μm or more was converted into the weight g of two gloves.

[Glove wearing evaluation (fitness, hardness, tingling sensation)]
A wearing test was conducted by 5 subjects. EN 420: 2003 Protective gloves -General requirements and test methods 5.2 gave all subjects a level 5 performance rating for Dexterity, and 5 out of 5 sensory ratings were "good to wear" Those who evaluated it passed (◎), those who were evaluated as “good wearing feeling” by 3 or more out of 5 people were evaluated as “passed” (○), and the others were evaluated as rejected (×).

[Glove knitting property]
A 7-gauge type, 10-gauge type, 13-gauge type, and 15-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.) was used, and the presence or absence of a problem was determined based on the state of the knitted gloves.

[Manufacturing Example 1 (Fluid Processed Thread)]
Filament of polyparaphenylene terephthalamide (PPTA) fiber (manufactured by Toray DuPont Co., Ltd., trade name "Kevlar" (registered trademark)) having a single fiber fineness of 1.67 dtex and a total fineness of 444 dtex, 800 dtex, 1670 dtex. A thread was used. By the Taslan method using the fluid injection processing device shown in FIG. 1, the overfeed rate is set to 3 to 10%, and the fluid injection processing using steam as the fluid is performed to obtain a fluid processing yarn of PPTA filament. It was. The fluid processed yarn was a non-twisted yarn.

[Manufacturing Example 2 (Fluid Processed Thread)]
Fluid processing shown in FIG. 1 using filament filaments of PPTA fiber (manufactured by Toray DuPont Co., Ltd., trade name "Kevlar" (registered trademark)) having a single fiber fineness of 2.5 dtex and a total fineness of 670 dtex. A fluid-processed yarn of PPTA filament was obtained by setting the overfeed rate to 3 to 10% by the Taslan method using an apparatus and performing fluid injection processing using steam as the fluid. The fluid processed yarn was a non-twisted yarn.

[Manufacturing Example 3 (spun yarn)]
A spun yarn of staple (single fiber fineness 1.67 dtex, fiber length 52 mm) of PPTA fiber (trade name "Kevlar" (registered trademark)) manufactured by Toray DuPont Co., Ltd. was produced.

[Manufacturing Example 4 (bulky processed yarn)]
Continuous false twisting is performed using filament yarn of PPTA fiber (manufactured by Toray DuPont Co., Ltd., trade name "Kevlar" (registered trademark)) with a single fiber fineness of 1.67 dtex and a total fineness of 444 dtex, and the expansion and contraction elongation rate is 22%. PPTA fiber crimped yarn (S twist, Z twist) was obtained.

(Examples 1, 3, 5-7; 7G, no splicing thread)
When supplying 2 to 4 fluid-processed yarns obtained in Production Examples 1 and 2 to a 7-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.), use two washer tensors among the thread guides. Seamless gloves were knitted by a conventional method, except that the surface was satin-finished.
That is, the thread path part of the tensor shaft of the washer tensor is made of alumina ceramic guide (YM99C manufactured by Yuasa thread path Co., Ltd., density 3.8, hardness 1800, Rmax 1.5 μm), the upper and lower tension washers are made of satin chrome plating, and others. The thread guides used were made of alumina ceramic, satin chrome plated, and non-plated guides, without changing from the knitting machine specifications.

(Examples 2, 4; 7G, with splicing thread)
Three fluid-processed yarns (ground yarns) obtained in Production Example 1 and one elastic attachment yarn (155 dtex nylon fiber woolly-processed yarn (twisting direction: Z-twist)) are used in a 7-gauge type glove knitting machine (stock). It was supplied to Shima Seiki Seisakusho Co., Ltd.), and by plating knitting, gloves were knitted with the ground yarn on the outer surface and the splicing yarn on the inner surface.

The gloves obtained in Examples 1 to 7 had low dust generation and excellent cut resistance, and had a soft and voluminous texture.

(Comparative Example 1; 7G)
Seamless gloves were knitted in the same manner as in Example 1 except that five spun yarns obtained in Production Example 3 were used. The obtained gloves had excellent cut resistance, but had a large amount of dust and had a tingling sensation.

(Comparative Example 2; 7G)
Seamless gloves were knitted in the same manner as in Example 1 except that 6 bulky processed yarns (3 S twists and 3 Z twists) obtained in Production Example 4 were used. The obtained gloves had excellent cut resistance, and although the number of dust generated was smaller than that of the spun yarn, the amount of dust generated was about 2 to 3 times that of the fluidized yarn.

(Example 8; 10G, with splicing thread)
One 10-gauge type glove knitting machine (stock) using one fluid-processed yarn (ground yarn) obtained in Production Example 1 and one elastic attachment yarn (155 dtex nylon fiber woolly-processed yarn (twisting direction: Z-twist)). It was supplied to Shima Seiki Seisakusho Co., Ltd.), and by plating knitting, gloves were knitted with the ground yarn on the outer surface and the splicing yarn on the inner surface.

(Example 9; 10G, no splicing thread)
Seamless gloves were knitted by the same method as in Example 1 except that the two fluid-processed yarns obtained in Production Example 2 were supplied to a 10-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.).

The gloves obtained in Examples 8 to 9 had low dust generation and excellent cut resistance, and had a soft and voluminous texture.

(Comparative Example 3; 10G)
Seamless gloves were knitted in the same manner as in Example 9 except that the two spun yarns obtained in Production Example 3 were used. The obtained gloves had excellent cut resistance, but had a large amount of dust and had a tingling sensation.

(Comparative example 4; 10G, no splicing thread)
Seamless gloves were knitted by the same method as in Example 1 except that one fluid-processed yarn obtained in Production Example 1 was supplied to a 10-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.). The gloves obtained were squishy gloves and had a poor fit.

(Examples 10-11, 13; 13G, no splicing thread)
Seamless gloves are knitted by the same method as in Example 1 except that one or two fluid-processed yarns obtained in Production Example 1 are supplied to a 13-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.). It was.

(Examples 12, 14; 13G, with splicing thread)
A 13-gauge type glove knitting machine (stock) using one fluid-processed yarn (ground yarn) obtained in Production Example 1 and one elastic attachment yarn (78 dtex nylon fiber woolly-processed yarn (twisting direction: Z-twist)). It was supplied to Shima Seiki Seisakusho Co., Ltd.), and by plating knitting, gloves were knitted with the ground yarn on the outer surface and the splicing yarn on the inner surface.

The gloves obtained in Examples 10 to 14 have low dust generation and excellent cut resistance, and have a soft and voluminous texture. Among them, the gloves of Examples 12 and 14 using elastic splicing threads. The gloves were comfortable to wear.

(Comparative Example 5; 13G)
Seamless gloves were knitted in the same manner as in Example 10 except that two bulky processed yarns (one S twist and one Z twist) obtained in Production Example 4 were used. The obtained gloves had excellent cut resistance, but generated a large amount of dust.

(Examples 15 to 16, 18, 20; 15G, with splicing thread)
A 15-gauge type glove knitting machine that uses one fluidized yarn (ground yarn) obtained in Production Examples 1 and 2 and one elastic auxiliary yarn (78 dtex nylon fiber woolly processed yarn (twisting direction: Z twist)). It was supplied to (Shima Seiki Seisakusho Co., Ltd.), and gloves were knitted by plating knitting with the ground yarn on the outer surface and the splicing yarn on the inner surface.

(Examples 17, 19; 15G, no splicing thread)
Seamless gloves were knitted by the same method as in Example 1 except that one fluid-processed yarn obtained in Production Example 2 was supplied to a 15-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.).

The gloves obtained in Examples 15 to 20 have low dust generation and excellent cut resistance, and have a soft and voluminous texture. Among them, a ground thread having a fineness of 670 dtex and an elastic splicing thread are used. The gloves of Examples 18 and 20 had a good wearing feeling.

(Comparative Example 6; 15G)
An attempt was made to knit a seamless glove by the same method as in Example 17 except that one bulky processed yarn obtained in Production Example 4 was used, but the yarn was twisted and knitting was impossible.

(Comparative Examples 7 to 8; 15G)
Seamless gloves were knitted by the same method as in Example 17 except that one fluid-processed yarn obtained in Production Example 1 was supplied to a 15-gauge type glove knitting machine (manufactured by Shima Seiki Seisakusho Co., Ltd.). The gloves obtained were squishy gloves and had a poor fit.

Table 1 summarizes the glove configuration and evaluation results.

From Table 1, by knitting gloves using organic fiber threads having a fineness of 440 to 1,800 dtex that have been fluid-injected with an overfeed rate of 3 to 10%, the cut resistance is 5 N or more and the particle size is small. It can be seen that a cut-resistant glove having a dust generation number of 0.1 μm or more of 100,000 or less per two gloves can be obtained. Further, by knitting the glove using the above-mentioned ground yarn made of organic fiber yarn and the elastic splicing yarn, the glove has a cut resistance of 5 N or more and a particle size of 0.1 μm or more. It can be seen that cut-resistant gloves with 100,000 or less per two pieces can be obtained.

In thick gloves knitted with 7G and 10G, conventional spun yarns and bulky processed yarns cannot provide gloves satisfying cut resistance and low dust generation, whereas the fluid processed yarns of the present invention have cut resistance. Gloves that satisfy creativity and low dust generation can be obtained. Further, in the thin gloves knitted with 13G and 15G, one thread could not be used with the conventional bulky processed thread, whereas the fluid processed thread of the present invention can provide cut resistance and low dust generation even with one thread. You will get a satisfying glove.

The cut-resistant gloves of the present invention and the method for manufacturing the same are useful as work gloves that are reluctant to mix dust. The cut-resistant gloves of the present invention can be used as gloves for various work performed in a clean room in order to meet the standards for clean room garments, as work gloves in the fishing industry, agriculture, food industry, medical care, high-tech industry, etc. , Useful as sports gloves.

1 Organic fiber thread 2 Feed roller 3 Fluid processing nozzle 4 Fluid inlet 5 Delivery roller 6 Winding roller 7 Winding bobbin

Claims (6)

(I) Gloves made of only organic fibers processed by fluid injection (however, not including elastic fibers) and knitted with yarns having a fineness of 440 to 1,800 dtex, which is a single yarn or a plurality of yarns aligned. (Ii) Gloves knitted with a ground yarn made of the above-mentioned yarn and an elastic supplementary yarn.
The gloves (i) and (ii) are cut-resistant gloves having a basis weight in the range of 200 to 750 g / m ² and simultaneously satisfying the following (1) and (2).
(1) The number of dust particles with a particle size of 0.1 μm or more when dust is generated by the JIS B 9923 tumbling method and measured with a particle counter is 100,000 / m ³ or less per two gloves.
(2) JIS T 8502 Protective clothing-Mechanical properties-The value of the cutting load measured in the cut resistance test for sharp objects is in the range of 5 to 15 N. The cut-resistant glove according to claim 1, wherein the fiber threads are fluid-injected in a state of 3 to 10% overfeed. The cut-resistant glove according to claim 1 or 2, wherein the cutting load of the cut-resistant glove is 7 to 15 N. The cut-resistant glove according to any one of claims 1 to 3, wherein the number of gauges set at the time of knitting the cut-resistant glove is 7 gauge to 15 gauge. The elastic splicing yarn is a woolly processed yarn of a synthetic fiber filament yarn, a coating yarn in which a synthetic fiber filament yarn is spirally wound around a core yarn made of a polyurethane elastic yarn, or a polyurethane elastic yarn and a synthetic fiber filament yarn. The cut-resistant glove according to any one of claims 1 to 4, which is one kind or two or more kinds of yarns selected from fluid mixed yarns. (I) A single or a plurality of fiber yarns having a fineness of 440 to 1,800 dtex consisting of only organic fibers processed by fluid injection (however, not including elastic fibers), or (ii) the yarn. A yarn made of a strip and an elastic splicing yarn are fed to a glove knitting machine having a gauge number of 7 gauge to 15 gauge, and the contact surface with the yarn is formed in a satin finish through a tension adjuster. A method for producing cut-resistant gloves, which comprises knitting and knitting the fibers simultaneously satisfy the following (1) and (2).
(1) The number of dust particles with a particle size of 0.1 μm or more when dust is generated by the JIS B 9923 tumbling method and measured with a particle counter is 100,000 / m ³ or less per two gloves.
(2) JIS T 8502 Protective clothing-Mechanical properties-The value of the cutting load measured in the cut resistance test for sharp objects is in the range of 5 to 15 N.

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