JP2001164411A - Cut-preventive glove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piece of cut-preventive gloves, made of both hard fibers and high-strength fibers; wherein troublesome and complicated processes for getting both the fibers together into a single knitting yarn is omitted through using each of the hard fibers and the high-strength fibers as a separate knitting yarn to enable easily knitting operation by making a single knitting yarn thin and making its rigidity low so as to facilitate lot changing operation. SOLUTION: This piece of cut-preventive gloves is such as to be mixedly knitted mainly using hard composite yarns wherein multifilament yarns of hard fibers such as glass fibers as core yarns and multifilament yarns of thermoplastic synthetic fibers as winding yarns are used, and high-strength composite yarns wherein multifilament yarns of high-strength synthetic fibers with a tenacity of >=20 g/d and a modulus of >=5,000 kg/mm2 are used as core yarns and multifilament yarns of thermoplastic synthetic fibers as winding yarns, and the hard composite yarns and the high-strength composite yarns are knitted into the same knitted stitches.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work for handling iron plates and glass having sharp edges or burrs, and a dangerous work using a knife or a knife for meat processing or dismantling of large fish. The present invention relates to an incision-preventing glove suitable for use.

[0002]

2. Description of the Related Art Gloves knitted using a knitting yarn having excellent cutting resistance are known as safety work gloves used in the meat processing industry and the like. For example, U.S. Pat. No. 3,883,896 describes that high strength fibers such as aramid fibers are used in working gloves in the meat processing industry. Also, U.S. Pat.No. 4,384,449 and U.S. Pat.
It has been suggested to use a combination of aramid fibers and metal wires. However, those using high-strength fibers are more excellent in cut resistance than those using ordinary fibers, but are cut relatively easily when touching a sharp edge or the like. Further, those using both aramid fibers and metal wires have improved cut resistance, but are poor in flexibility and lack in knitting workability, and have conductivity, so that their applications have been limited.

Further, US Pat. No. 5,119,512 discloses that a high-strength fiber having a cutting resistance such as a high-strength polyethylene fiber and a hard fiber such as a glass fiber are compounded. The filament and the glass fiber filament are aligned to form a core yarn, and the above-described high-strength fiber filament is double-wound on the core yarn to form a cut-resistant yarn, and the cut-resistant yarn is used. And knitting of working gloves, and coating the above glass fibers with an elastomer coating.

[0004] In a working glove using the composite yarn of the high-strength fiber and the glass fiber, the cutting resistance of the composite yarn is improved by the combination of the tensile strength of the high-strength fiber and the hardness of the glass fiber, and Since metal fibers are not used, they have the advantage of not having conductivity.However, relatively soft high-strength fibers and relatively hard glass fibers are converged in parallel to form a core yarn, on which high-strength fiber filaments are placed. Since it is double-wound and formed into one composite yarn, it is difficult to smoothly supply the core yarn at the time of composite, causing uneven converging parts, twisting by ironing easily occurs, and twist unevenness occurs. The knitting yarn becomes thicker and harder, making knitting difficult, and the convergence force becomes larger because the knitting yarn becomes thicker. Cutting resistance due to weakening and unevenness When trying to make various gloves with reduced and different yarn configurations and thicknesses, a separate compounding process is required each time, increasing the inventory of various types and complicating inventory management, resulting in cost reduction. There were problems such as the cause of up.

In addition, since the high-strength fiber and the glass fiber are converged in parallel to form one composite yarn, the high-strength fiber and the glass fiber are uneven on the outer surface and the inner surface of the knitted fabric during knitting of the glove. In the part where the high-strength fiber is located on the outer surface, the cutting tool touches the high-strength fiber and then touches the glass fiber, so that the composite yarn is easily cut, and if the glass fiber breaks, the end of the glass fiber However, there is a problem such that the protruding portion protrudes into the inner surface and is stuck into the human body.

If the glass fiber before knitting is coated with an elastomer coating or the like in order to prevent the end of the broken glass fiber from projecting, the glass fiber is knitted with a high-strength fiber or knitted with a composite yarn. At this time, the running friction of the yarn becomes large, the operation becomes unsmooth, and a gap remains between the knitting yarns forming the knitted fabric. However, there is a problem in that the film tends to be unsanitary, and depending on the use, an elastomer film is also present on an unnecessary portion, resulting in poor air permeability. Further, in the working gloves made of the above composite yarn, the knitting yarn is a composite yarn of high-strength fiber and glass fiber, so the knitting yarn itself has no elasticity, and the elasticity of the knitted fabric of the glove depends on the knitting structure. There was only elasticity, and depending on the application, the elasticity was insufficient, and the detachability and adhesion of gloves were sometimes lacking. In addition, when the glove knitted with the above-described composite yarn is put on a production mold in order to cover the glove with a covering material such as synthetic resin or rubber, the glove does not fit in the production mold and the size of the glove is not suitable. Become uniform,
There were inconveniences, such as wrinkles and floating, making coating processing difficult.

[0007]

SUMMARY OF THE INVENTION A first object of the present invention is to provide a cut-resistant glove having high cut resistance using both hard fibers and high-strength fibers, in which the hard fibers and the high-strength fibers are formed as separate knitting yarns. By using, it is possible to eliminate the difficult compounding process of combining hard fibers and high-strength fibers having different hardnesses into one knitting yarn, to reduce the thickness per knitting yarn,
An object of the present invention is to lower the rigidity to facilitate knitting, facilitate a lot change, improve the convergence of the hard fibers and the high-strength fibers, and further increase the cutting resistance. In addition, the second problem is to improve the elasticity of the above-mentioned gloves for preventing cuts, thereby improving the detachability and adhesion thereof, and improving the workability when attaching and detaching to and from the manufacturing die for coating. And to improve the adhesion to the production mold. The third problem is to reduce the contact of high-strength fibers before the glass fiber hits sharp burrs, edges, blades, etc. of the human body with the end of the broken glass fiber facing the inside of the glove. Is to prevent stabbing. A fourth problem is to impart waterproofness, abrasion resistance, slip resistance, and the like to an arbitrary portion of the glove.

[0008]

The glove for preventing cuts according to the present invention, which solves the above first problem, comprises a multifilament yarn made of a thermoplastic fiber and a multifilament yarn made of a hard fiber such as glass fiber. , A hard composite yarn covered with a winding yarn, and a tensile strength of 20 g / denier or more,
It is knitted mainly using a high-strength composite yarn formed by covering a yarn made of high-strength synthetic fiber with an elastic modulus of 5000 kg / mm ² or more as a core yarn and covering a multifilament yarn of a thermoplastic synthetic fiber as a winding yarn. The hard composite yarn and the high-strength composite yarn are knitted to form the same stitch.

The above-mentioned hard fiber has a Mohs hardness scale of 3
Examples of the above fibers include glass fibers, ceramic fibers, carbon fibers, and steel fibers, and glass fibers and ceramic fibers are preferable in that they do not have conductivity. It is most preferable in terms of operability, handleability, variety of brands used and price. This hard fiber is used in the form of a multifilament yarn in which many filaments thin enough to be bent are converged. However, in the case of glass fiber, the fineness of the hard fiber is preferably such that 100 to 600 filaments having a wire diameter of 3 to 6 μm are converged and used.
It is ~ 300 denier, preferably 50-150 denier. If the wire diameter is less than 3 μm, it is difficult to manufacture, and if it exceeds 6 μm, the wire is easily broken.

The high-strength synthetic fiber used in combination with the hard fiber has a tensile strength of 20 g / denier or more and an elastic modulus of 50 g / denier.
It is a synthetic fiber of 00 kg / mm ² or more, and examples include a high-strength drawn polyethylene fiber, an aramid fiber and a polyparaphenylene benzobisoxazole fiber. In particular, a high-strength drawn polyethylene fiber having a tensile strength of 30 g / denier or more and an elastic modulus of 8000 kg / mm ² or more is most preferable.

The single fiber fineness of the high-strength synthetic fiber is 0.1.
If it is less than 0.5 denier, a single fiber is liable to be broken, and if it exceeds 2 denier, the rigidity increases and the texture of the product glove becomes hard, which is not preferable. The above-mentioned high-strength synthetic fiber is used in the form of a spun yarn or other yarn, preferably in the form of a multifilament yarn in which many filaments are converged. However,
The total fineness (thickness) is 100 to 2500 denier,
In particular, 200 to 2400 denier is preferable, and 300 to 2 denier.
000 denier is most preferred. If it is less than 100 denier, the strength is insufficient, and if it exceeds 2500 denier, it is too thick to be suitable for glove applications.

In the present invention, the multifilament yarn of the hard fiber is knitted by processing into a covered yarn type hard composite yarn using the multifilament yarn as a core yarn and the multifilament yarn of a thermoplastic synthetic fiber as a winding yarn. To be served. The yarn (high-strength fiber yarn) comprising the high-strength synthetic fiber is a covered yarn type high-strength yarn in which the high-strength fiber yarn is used as a core yarn and a multifilament yarn of a thermoplastic synthetic fiber is used as a winding yarn. It is processed into a composite yarn and provided for knitting. That is, the multifilament yarn of the hard fiber and the high-strength fiber yarn are individually covered with the multifilament yarn of the thermoplastic synthetic fiber, and are used as knitting yarns in the form of separate covered yarns (composite yarns).

The winding yarn for covering the core yarn composed of the hard fiber multifilament yarn is preferably a multifilament yarn of ordinary clothing fibers such as polyester, nylon, and acrylic. Particularly, polyester has a low moisture content and is resistant to moisture. It has high chemical properties, good adhesion to various coating materials such as synthetic resin and rubber, and can be crimped such as false twisting, and the resulting crimp is robust and improves convergence. preferable. A false twisted yarn obtained by subjecting a polyester fiber multifilament yarn to false twisting is preferable in that it has a higher bulkiness than an unprocessed multifilament yarn and further improves coatability. The above multifilament yarn preferably has a thickness of 50 to 150 denier and a number of filaments of 24 to 72.

[0014] The covering method for the core yarn composed of the hard fiber includes a single covering method in which a multifilament yarn of the above-mentioned thermoplastic synthetic fiber is used as a winding yarn and the core yarn is wound in one direction. After winding, any of the double covering method of further winding in the reverse direction may be used. However, when the degree of covering is increased by winding the wound yarn at a winding number of 500 times / m or more, a strong swirling property (torque) occurs in the obtained covered yarn (hard composite yarn), and trouble occurs during knitting. Therefore, the double covering system in which the turning property is canceled is preferable. In this case, the number of windings is preferably 200 to 800 times / m, particularly preferably 300 to 500 times / m. If the number of windings is less than 200 times / m, the convergence is insufficient, and it is easy to disperse. It becomes strong, the flexibility as a hard composite yarn becomes poor, and knitting becomes difficult.

The winding yarn for covering the core yarn made of the high-strength fiber yarn is a multifilament yarn of a thermoplastic synthetic fiber, particularly preferably a false twisted yarn, like the hard fiber. This thermoplastic synthetic fiber is exemplified by clothing fibers such as polyester, nylon and acrylic as described above, but using the same fiber as that used for covering the hard fiber means that the glove surface after knitting is the same. It is preferred in that it is covered with fibers and becomes homogeneous, and is economically advantageous. The thickness of the multifilament yarn for winding is preferably １ ／ to の of the high-strength fiber yarn.

The covering method of the high-strength fiber yarn with the thermoplastic synthetic fiber for clothing may be either single covering or double covering as in the case of the hard fiber. However, since the high-strength synthetic fiber constituting the high-strength fiber yarn is more flexible than the hard fiber, the torque of the obtained high-strength composite yarn is relatively small even in the single covering method, and the handling in a later process is performed. Becomes easier. And the number of turns at the time of covering is 200 to 800 times /
m, particularly preferably 300 to 500 times / m, more preferably 200 times / m.
m, the convergence of the high-strength synthetic fibers becomes insufficient,
If it exceeds 0 times / m, the hardness of the high-strength composite yarn increases due to tightening, and knitting becomes difficult.

The glove of the present invention is knitted mainly using the above-described hard composite yarn and high strength composite yarn. That is,
Both the hard composite yarn and the high-strength composite yarn are knitted using a knitting yarn. As described later, an elastic composite yarn or a normal synthetic fiber yarn (preferably false twisted yarn) is used as the knitting yarn. It is possible to adjust the elasticity, the texture of the knitted fabric, the thickness, and the like by adding it. In the present invention, the above-mentioned hard composite yarn and high-strength composite yarn are knitted to form the same stitch, and when an elastic composite yarn or a normal synthetic fiber yarn is added, these also form the same stitch. I have. That is, at least one of the hard composite yarn and the high-strength composite yarn are combined and supplied to the same knitting needle, and when the above-mentioned elastic composite yarn or ordinary synthetic fiber yarn is added, these are also combined with the hard composite yarn and the high composite yarn. The strength composite yarn is supplied to the same knitting needle and cross-knitted. This knitting may be simple knitting of the above-described hard composite yarn and high-strength composite yarn, or may be additional yarn knitting in which one of the hard composite yarn and the high-strength composite yarn is relatively exposed.

[0018] In simple pull-knitting, a hard yarn and a high-strength yarn are alternately and randomly exposed or hidden behind, but a general yarn feeder having one knitting yarn guide hole. It can be knitted using no special yarn feeder. Then, by making a difference in the yarn feed tension at the time of knitting according to the hardness and thickness of the hard composite yarn and the high-strength composite yarn (tension knitting), one of the knitting yarns is substantially similar to the additional yarn knitting described later. A relatively large amount of yarn can be output to the surface side.

On the other hand, the auxiliary yarn knitting is a double yarn feeder (commonly called a double mill) in which a circular guide hole (main yarn hole) and an arc-shaped guide hole (additional yarn hole) are juxtaposed, and the above-described general type. 2 yarn feeders
It requires a special yarn feeder such as a plating yarn feeder that can be arranged in front and rear with respect to the knitting direction and the position can be exchanged, but a lot of hard composite yarn is put on the front side and a high strength composite yarn is put on the back side Since many gloves can be arranged on the side, the hard composite yarn is first brought into contact with the sharp edge or the blade of the blade, and then the high strength composite yarn is brought into contact with the glove, so that the cut resistance of the glove can be further improved. Further, when the glass fiber is broken, it is possible to prevent the end of the glass fiber from protruding into the inner surface and sticking to the human body.

When the auxiliary yarn is knitted using a double mill or a plating yarn feeder, a hard composite yarn is introduced into the main yarn hole and a high-strength composite yarn is introduced into the auxiliary yarn hole. When adding an elastic yarn or a normal synthetic fiber yarn for adjusting the texture, etc., introduce a hard composite yarn and a high-strength composite yarn into the main yarn hole, and add an elastic yarn or a normal synthetic fiber into the additional yarn hole. It is preferable to introduce a yarn and adjust the feeding tension of the hard composite yarn and the high-strength composite yarn so that a large amount of the hard composite yarn comes out to the surface side.

Since the glove of the present invention is knitted with the hard composite yarn and the high-strength composite yarn as described above, when the glove touches a sharp edge or the like or a blade of a cutting tool, the glove is hardened with the hard composite yarn. The combined action with the strength composite yarn improves the cut resistance of the entire glove. In addition, the above-mentioned hard composite yarn and high-strength composite yarn are
An arbitrary glove can be knitted by changing the combination according to the purpose or by changing the number of hard composite yarns or high-strength composite yarns to be used. Further, since the above-mentioned hard composite yarn and high-strength composite yarn are used as separate knitting yarns, the thickness of one knitting yarn is smaller than that in the case where these two types of yarns are combined and used as one knitting yarn. Becomes thinner, and it becomes easier to bend and the knitting becomes easier.
Further, since the multifilament yarn and the high-strength fiber yarn of the hard fiber are each used in the form of the covered yarn type composite yarn, the convergence of the knitting yarn, the cutting resistance, and the cut resistance of the glove are compared with the case where no covering is performed. Properties and dyeing properties are improved, and the adhesion of synthetic resin, rubber and other coating materials is also greatly improved.

The second problem is that in the incision prevention glove obtained by knitting the above-mentioned hard composite yarn and high-strength composite yarn, the core yarn made of elastic fiber is made of a thermoplastic synthetic fiber multifilament yarn. The problem is solved by knitting the elastic composite yarn obtained by covering together with the hard composite yarn and the high-strength composite yarn, and forming the same stitch by the three members. The elastic fiber is a fiber having rubber-like elasticity, and is exemplified by a polyurethane elastic yarn (spandex fiber yarn). The fineness is preferably 20 to 100 denier, particularly 30 to 70 denier. If it is less than 20 denier, it is too thin and the stretching power is insufficient, and if it exceeds 100 denier, the elasticity becomes excessively large, making knitting difficult and twisting. This will cause a knitted fabric defect.

The thermoplastic synthetic fiber yarn (winding yarn) for covering the core yarn made of the above-mentioned elastic fiber is the same as the above-described hard composite yarn and high-strength composite yarn, and is made of nylon or polyester. Multifilament yarn 5
A false twisted yarn of 0 to 100 denier is preferable, and if it is less than 50 denier, the covering of the core yarn becomes incomplete, and
Exceeding denier is uneconomical.

In the covering, since the core yarn is a stretchable elastic fiber yarn, a single covering method is preferable, and there is no need for double covering. In addition, the core yarn elongation at the time of covering is preferably 2.5 to 4.5, and when it is less than 2.5, the stretching force is insufficient, and when it exceeds 4.5, yarn breakage during covering increases. The number of windings (number of twists) is 300
When the number is less than 300 times / m, the convergence is insufficient when the number is less than 300 times / m, the winding is displaced by squeezing, and the twist is easily formed. When the number exceeds 500 times / m, the composite yarn becomes too thin. At the same time, a strong swirling property is generated in the composite yarn, making it difficult to handle.

The third problem is that in the incision-preventing glove, the hard composite yarn is more exposed on the glove surface side than the high-strength composite yarn, that is, the hard composite yarn on the glove surface side. Uneven distribution ratio (ratio of the length of the part where one knitting yarn is on the other knitting yarn to the knitting yarn length of one stitch)
Is larger than the uneven distribution rate of the high-strength composite yarn,
Achieved. Specifically, when cross knitting a hard composite yarn and a high-strength composite yarn or a triple yarn obtained by adding an elastic composite yarn thereto, the above paragraphs “0017” to “002” are used.
The knitting is performed by tension knitting or additional yarn knitting described in “0”, or by a combination thereof, so that a large amount of the hard composite yarn appears on the surface side. Alternatively, the knitting may be performed such that the hard composite yarn is prominent on the back surface side, and then the knitted fabric is turned over so that the hard composite yarn is protruded on the front surface side. In this case, as described above, the hard composite yarn first comes into contact with the sharp edge or the blade of the blade, and then the high-strength composite yarn comes into contact, so that the cut resistance of the glove is improved. Further, when the glass fiber is broken, it is possible to prevent the end of the glass fiber from protruding into the inner surface and sticking to the human body.

The fourth problem can be solved by providing a covering layer made of a synthetic resin, rubber, or the like at a required portion on the surface of the glove in the above-mentioned glove for preventing cuts. Examples of the synthetic resin include urethane resin, vinyl chloride resin, vinyl acetate resin, ethylene vinyl acetate resin, and the like.Examples of the rubber include natural rubber, nitrile rubber, chloroprene rubber, silicone rubber, and the like. Coating liquids and films for coating, laminating, impregnating, etc.
It is processed into a covering material such as a sheet. Examples of the coating material other than the synthetic resin and rubber include synthetic leather, leather, and woven fabric. Then, a glove knitted and knitted using at least the hard composite yarn and the high-strength composite yarn in the hard composite yarn, the high-strength composite yarn, the elastic composite yarn, and the yarn for adjusting the feel and the like is put on a production mold, Dip, drip, apply, spray or apply the above coating liquid from the front side to the fingertip, the entire palm or any other desired part such as the entire surface extending from the palm to the instep, or apply the above synthetic resin. A film and a sheet made of rubber or the like are attached, and then dried and die-cut.

In the obtained gloves, the stitches and inter-fiber gaps at required locations are closed with a film made of the above-mentioned synthetic resin, rubber or the like, the air permeability is adjusted in accordance with the type of the film, and the glove is waterproofed. And the coefficient of friction of the surface increases. Moreover, despite the fact that the above-mentioned hard fibers and high-strength fibers themselves have low adhesiveness to rubber and the like, the hard composite yarn and the high-strength composite yarn constituting the glove are constituted by a converging body of fine fibers, and are made of thermoplastic synthetic fibers. Since the fiber is covered with the multifilament yarn, the peel strength of the coating film is increased, the film is not easily peeled, and the wear resistance and the friction coefficient are increased.

Therefore, by selecting the type of the covering material such as a synthetic resin or rubber, and the selection of the covering portion and the attaching portion, only the fingertip portion is hardly worn or slipped while leaving the air permeability in most of the glove. The entire palm can be hardly worn or slipped while the instep's breathability remains, and the stitches on the entire surface of the glove can be closed to provide waterproofing and antifouling properties, thereby preventing the growth of bacteria. In addition, it is possible to improve the sanitary effect by adding an antibacterial agent or a fungicide to the above-mentioned coating material,
Also, unevenness can be formed in the coating portion by embossing or the like to make it more difficult to slip.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A glass filament 1 having a wire diameter of 3 to 6 μm as a hard fiber
A filament bundle consisting of 100 to 600 filaments (total fineness of 50
~ 300 denier, preferably 50 ~ 150 denier)
This glass filament bundle is used as a core yarn, and a false twisted yarn of a polyester multifilament yarn (thickness of 50 to 150 denier, 24 to 72 filaments) is covered as a winding yarn around the core yarn to form a hard composite yarn. I do. This covering is performed by applying the above false twisted yarn in one direction by 300 to
Either single covering in which winding is performed at a winding number of 500 times / m, or double covering in which the same false twisted yarn is wound in the opposite direction at a winding number of 300 to 500 times / m following the winding in one direction.

On the other hand, a high-strength synthetic fiber having a tensile strength of 3
0 g / denier or more, elastic modulus of 8000 kg / mm ² or more High-strength drawn polyethylene fiber filaments (single fiber fineness 0.5 to 2 deniers) total fineness 20
A filament bundle of 0 to 400 denier is used as a core yarn, and a false twisted yarn of the same polyester multifilament yarn as described above is wound as a winding yarn (thickness: 1/8 to 1/2 of the filament bundle). With a single covering method or a double covering method (number of windings: 300 to 5
00 / m) to form a high-strength composite yarn.

The hard composite yarn and the high-strength composite yarn are simultaneously supplied one by one to the yarn feeder of the glove knitting machine having the general yarn feeder, and a glove having a flat knitting structure, that is, a knitting glove is knitted. In the obtained glove, the hard composite yarn and the high-strength composite yarn are knitted in a aligned manner, and the hard composite yarn comes out on the front side and the high-strength composite yarn is hidden on the back side, or the hard composite yarn is hidden on the back side. Thus, the same stitch is formed while the high-strength composite yarn comes out on the surface side. In addition, a nylon false twisted yarn (100 to 800 denier) can be added to the hard composite yarn and the high-strength composite yarn for adjusting the feel, thickness, cushion, and the like of the knitted fabric.

The obtained gloves were evaluated by an evaluation method (CE) using a cut resistance tester (COUPTEST) manufactured by SODEMAT, France.
Mark evaluation method) with cut resistance of level 4 or higher. In the above-mentioned testing machine, an aluminum foil is laid on a conductive rubber mat, a knitted fabric of a sample is placed thereon, and a diameter of 4 mm is placed on the knitted fabric.
The edge of a 5 mm circular blade is applied in a rotating state, and a load of 5 Newton is applied to reciprocate a distance of 50 mm, and the number of reciprocations until the knitted fabric is cut and the edge contacts the aluminum foil is obtained. . However, the rotation direction and the rotation speed of the circular blade are set such that the cutting edge in contact with the knitted fabric makes one rotation in the same direction as the traveling direction while the circular blade advances by 50 mm.

The cut resistance index I is obtained as follows. First, the above-mentioned knitted fabric sample is subjected to five tests, and the number of reciprocations S ₁ , S ₂ , S ₃ , S ₄ and S ₅ is determined. However, before and after the five tests and before and after each test, a similar test was performed on Bn (control cloth and prescribed reference cloth) a total of six times, and the number of reciprocations b ₁ , b ₂ , b _{3 of the} disk cutter in each time was performed. , B ₄ , b ₅ and b ₆ . And b ₁
And b mean value B ₁ of _2, b ₂ and the average value of b ₃ B _2, b ₃ and the average value of b ₄
B _3, b ₄ and b mean value of ₅ B _4, b ₅ and the average value B ₅ of b ₆ respectively calculated, further wherein _{"(B 1 + S 1) /} B 1 = I 1, (B 2 + S 2 ) / B ₂
= I ₂ , (B ₃ + S ₃ ) / B ₃ = I ₃ , (B ₄ + S ₄ ) / B ₄ = I
_{4, (B 5 + S 5} ) / B 5 = In I ₅ "calculates I ₁ ~I _5, the average value of the I ₁ ~I ₅ and cut resistance index I,
Based on the index value, a 5-level value is obtained from Table 1 below.

Table 1

Embodiment 2 One elastic composite yarn is added to the hard composite yarn and the high-strength composite yarn of the above-described Embodiment 1 and knitted. As the elastic composite yarn, a polyurethane elastic yarn (30 to 70 denier) is used as an elastic fiber yarn serving as a core yarn, and a false twisted yarn of a nylon multifilament yarn (50 to 100 denier) is used as a winding yarn for covering the polyurethane elastic yarn.
(Denier) and wound around the core yarn in a single covering manner. At the time of winding, the elongation rate of the core yarn (polyurethane elastic yarn) is set to 2.5 to 4.5, and the number of windings of the winding yarn (false twisted yarn) is 300 to 500.
Times / m.

Using the glove knitting machine of the first embodiment, the above-described elastic composite yarn is simultaneously supplied to the yarn feeder together with the hard composite yarn and the high-strength composite yarn of the first embodiment, and knitted. However, a tension is applied to the elastic composite yarn so that its elongation becomes 250 to 350%. In the obtained glove, the hard knitting yarn, the high-strength knitting yarn and the elastic knitting yarn are knitted in a uniform shape, and the same knitting is performed while the hard knitting yarn comes out on the surface side and the high-strength knitting yarn comes out on the surface side. And the elastic composite yarn has a shape hidden by the contraction between the hard composite yarn and the high-strength composite yarn, and the elastic composite yarn improves the fit of the glove.
Note that the cut resistance level is about the same as that of the first embodiment.
Further, for the purpose of adjusting the texture, a nylon false twisted yarn (100 to 800 denier) can be added to the hard composite yarn, the high strength composite yarn and the elastic composite yarn in the same manner as described above.

Embodiment 3 Using the hard composite yarn and the high-strength composite yarn of Embodiment 1, side knitting is performed so that the hard composite yarn is unevenly distributed on the surface side of the glove. That is, using a glove knitting machine equipped with a double mill or a plating knitting yarn feeder, the hard composite yarn of the hard composite yarn and the high-strength composite yarn is used for the main yarn hole, and the high-strength composite yarn is used for the main yarn hole. By inserting and knitting the hard composite yarn always in front of the moving direction of the yarn feeder and knitting, a relatively large amount of the hard composite yarn is provided on the knitted fabric surface side of the plain knitting structure, that is, on the surface, and the high strength composite yarn is obtained. Take out relatively few threads,
The uneven distribution ratio of the hard composite yarn on the glove surface side is made larger than the uneven distribution ratio of the high-strength composite yarn, thereby further improving the cut resistance of the glove. In this case, the cut resistance is level 5 of the evaluation method, but the index value is 40 or more. As described above, a nylon false twisted yarn (100 to 800 denier) can be added for adjusting the feeling and the like. However, this nylon false twisted yarn is inserted into the accessory yarn hole together with the high-strength composite yarn.

Embodiment 4 An auxiliary thread knitting is performed by using the glove knitting machine capable of additional thread knitting of the third embodiment. However, contrary to the third embodiment, the high-strength composite yarn is always positioned in front of the moving direction of the yarn feeder (for example, the high-strength composite yarn is inserted into the main yarn hole, and the hard composite yarn is inserted into the auxiliary yarn hole, respectively). Cross knitting), relatively high amount of high-strength composite yarn on the surface of the knitted fabric, relatively large amount of hard composite yarn on the back of the knitted fabric Take out the product. In this case, the surface of the glove is formed with the back of a flat knitting structure, and relatively many hard composite yarns appear, whereby the cut resistance of the glove becomes comparable to that of the third embodiment. In the fourth embodiment, the back knit of the flat knitting structure forms the surface, but when the hard composite yarn is thinner than the high-strength composite yarn, knitting becomes easier than in the third embodiment. In addition, nylon false twisted yarn (100-8
(00 denier) can be added as described above.

Embodiment 5 Using the glove knitting machine capable of splicing of Embodiment 3, a hard composite yarn and a high-strength composite yarn are fitted into the main yarn hole of the yarn feeder and inserted into the splicing yarn hole. By inserting yarns and knitting by adjusting the feeding tension of the hard composite yarn and the high-strength composite yarn, a relatively large amount of the hard composite yarn is output on the knitted fabric surface side, and the hard composite yarn is unevenly distributed on the glove surface side. The ratio is higher than the uneven distribution ratio of the high-strength composite yarn, thereby further improving the cut resistance of the glove. As described above, nylon false twisted yarn (100 to 800 denier) can be added for adjusting the texture and the like. However, this nylon false twisted yarn is inserted into the auxiliary yarn hole together with the elastic composite yarn.

Embodiment 6 The glove obtained in Embodiment 1 is not slippery, imparts abrasion resistance, imparts waterproofness, strengthens, imparts stain resistance to the entire palm side while maintaining the air permeability on the back side. For example, a synthetic resin or rubber coating is applied. First, a synthetic resin or rubber is applied to the entire palm side of the glove attached to the production mold, dried with hot air or the like, and cut into a product to obtain a product. In addition, Embodiment 2
Similarly, the glove obtained in 5 can be coated on the entire palm side to achieve the same object as described above.

Embodiment 7 Bacteria can be prevented from adhering and growing on the entire surface from the palm side to the back side of the glove obtained in Embodiment 1 above, and the glove can be made non-slip, wear-resistant, and waterproof. To form a coating layer that also serves as reinforcement, imparting antifouling properties, and the like. That is, the above-mentioned gloves are mounted on a production mold, immersed in a synthetic resin or rubber coating solution, pulled up to remove an excess coating solution, and then dried with hot air or the like, and then die-cut into a product. . The gloves obtained in Embodiments 2 to 5 can be similarly coated with the entire surface.

[0042]

EXAMPLES The following are prepared as hard composite yarns, high strength composite yarns, elastic composite yarns, and yarns for adjusting texture, etc., and as a knitting machine, a 10-gauge general-type glove knitting machine with a yarn feeder and a double mill. A glove knitting machine with a glove is prepared, various gloves are knitted by changing the combination of the yarns and the number of the gloves used, resin processing is performed on some gloves, and the gloves of Examples 1 to 5 and Comparative Examples 1 and 2 are prepared. It was manufactured and tested for its performance, and the results are shown in Table 2 below.

Production of Hard Composite Yarn A filament bundle of glass filaments as a hard fiber (total fineness: 100 denier, number of filaments: 200)
This glass filament bundle is used as a core yarn, and a polyester false twisted yarn (7
5 denier, 36 filaments) 400 times / direction
A single covered yarn was manufactured by winding with a number of turns of m, and this was used as a hard composite yarn.

Production of High-Strength Composite Yarn A filament bundle of high-strength drawn polyethylene fiber having a tensile strength of 30 g / denier or more and an elastic modulus of 8000 kg / mm ² or more as a high-strength synthetic fiber (trade name “Dyneema” manufactured by Toyobo Co., Ltd.) The total fineness: 400 denier, the number of filaments: 390) is used as a core yarn, and the same polyester false twisted yarn is wound around the core yarn in one direction at a winding number of 400 times / m. To produce a single-covered yarn, which was used as a high-strength composite yarn.

Production of Elastic Composite Yarn As an elastic fiber, a spandex filament yarn (70
Denier) as a core yarn, the elongation of the core yarn is set to 4.0, and a nylon false twisted yarn (70 denier, 24 filaments) is wound thereon as a winding yarn at a number of turns of 500 times / m in one direction. This was wound to produce a single covered yarn, which was used as an elastic composite yarn.

A yarn for adjusting the feeling etc. A twin yarn (total fineness: 260 denier) of a false twisted yarn of a nylon multifilament yarn (130 denier, 24 filaments) was prepared.

Setting of Yarn Feeding Tension The knitting yarn pulled out from the bobbin is guided as a tension adjusting device of a knitting machine to a yarn feeding port through a yarn guide, a spring washer, and a loosening top spring. Adjust the knitting yarn feeding tension by adjusting the tightening of the spring of the spring washer and the tightening of the spring for biasing the top spring.The knitting yarn pulled out from the yarn guide at the tip of the top spring is fed to the yarn feeder with a spring balance. In the direction of, low tension of the scale 8-10g, normal tension of the scale 12-15g,
The scale was set at three stages of high tension of 17 to 22 g. However, the yarn feeding tension of the elastic composite yarn was adjusted so that the elongation was about 300%.

In the yarn feeders of Examples 1, 2, and 3 and Comparative Examples 1 and 2, all the knitting yarns were inserted with normal tension using a general yarn feeder. In Examples 4 and 5, a double mill was used, and the hard composite yarn and the high-strength composite yarn were inserted through the main yarn holes, and the elastic composite yarn and the yarn for adjusting the feeling etc. were inserted through the additional yarn holes. However, the yarn feeding tension was set to a low tension for the hard composite yarn and to a high tension for the high strength composite yarn. In addition, the elastic composite yarn, as described above,
The yarn feeding tension was adjusted so that the elongation was about 300%.

Resin Processing A knitted glove is attached to a production mold, and the entire palm side of the knitted glove is impregnated with a resin solution composed of urethane resin and dimethylformamide (DMF). DMF soluble in water was eluted by immersion in warm water at ５０50 ° C., then pulled out of the warm water, dried with hot air, cooled, and die-molded to obtain a knitted glove having a urethane resin porous coating layer. .

Measurement of glove thickness In an atmosphere of a temperature of 19.1 ° C. and a humidity of 62% RH, JIS
It was measured according to L-1018.

Evaluation of workability of gloves An iron bar having a diameter of 1 to 10 mm is picked up with fingers of a hand wearing gloves, and workability is evaluated in five stages based on the minimum diameter that can be picked, and the minimum diameter is 2 mm or more and less than 4 mm. The workability is "5" and the workability is 4mm or more and less than 6mm.
A workability of “3” is defined as a workability of 6 mm or more and less than 8 mm.
A workability of “2” is defined as a workability of 2 mm or more and less than 10 mm, and a workability of “1” is performed if the work is 10 mm or more.

Using a fiber stitch inspection tool with a magnifying glass (magnification: 6 times) (“Linen Tester 1006-SA3” manufactured by Masuda Rika Kogyo Co., Ltd.), each stitch in a frame of 25 mm long and 25 mm wide is used. In addition, the ratio (%) of the length of the portion where the hard composite yarn is on the high-strength composite yarn and the knitting yarn length of one stitch is visually judged in 11 stages of 0 to 10 points (the above-mentioned). Length ratio of 4% or less 0
1 point for 5-14%, 2 points for 15-24%, 25-3
4 points 3 points, 35-44% 4 points, 45-54% 5 points
Points 55-64% 6 points, 65-74% 7 points, 75-
84% was determined as 8 points, 85 to 94% as 9 points, and 95 to 100% as 10 points, and the average value of 10 stitches was defined as the uneven distribution rate.

Table 2

As shown in Table 2 above, Examples 1 to 5
Are all excellent in cut prevention and have a cut resistance of level 5
Met. In particular, in Examples 4 and 5, in which the hard composite yarn was unevenly distributed on the surface by the combined use of the side yarn knitting and the tension knitting, the index value was high, and the index value reached 75 in Example 5 in which the resin processing was performed. . Example 1,
For 2, 4, and 5, the elastic composite yarn was used, so that the fit was good. The workability was almost the same as that of the comparative example using no hard composite yarn. On the other hand, in Comparative Examples 1 and 2, the hard composite yarn was omitted, so that the cut resistance was extremely low.

[0055]

As described above, the incision-preventing glove of the present invention is cross-knitted mainly by using a hard composite yarn and a high-strength composite yarn. The mark evaluation method of level 4 or higher can be easily obtained, the knitting and other workability are good, the lot can be easily changed, and the convergence of hard fibers and high-strength fibers is improved, and the cutting resistance is improved. And dyeability is improved. In particular, the anti-cut wound glove according to claim 2 has, in addition to the above-mentioned characteristics, good detachability and fit to a manufacturing die and a hand, and the anti-cut wound glove according to claim 3 is a cut-resistant glove. Further, the glass fiber is used as the hard fiber, and even when the glass fiber is broken, the broken end hardly pierces the human body. And Claim 4
The incision-preventing gloves described in can provide waterproof, abrasion-resistant, anti-slip and anti-fouling properties at any point on the glove,
Moreover, unlike the case where the knitting yarn is coated before knitting, there is no inconvenience such as making the yarn hard to slip in the knitting process of the glove and the preparation process thereof, and the operability is not impaired.

Continuation of the front page (72) Inventor Yukio Tanaka 462 New Shiramimaru-cho, Chieko-in, Kamigyo-ku, Kyoto City, Kyoto Prefecture Maeda Textile Industry Co., Ltd.In-house F term (reference) AB04 AC00 BA01 DA03 EA05 FA04

Claims (4)

[Claims] 1. A hard composite yarn obtained by covering a multifilament yarn made of a hard fiber such as a glass fiber as a core yarn and covering a multifilament yarn of a thermoplastic synthetic fiber as a winding yarn, and having a tensile strength of 20 g / denier or more and elasticity. Rate 500
It is knitted mainly using a high-strength composite yarn obtained by covering a yarn made of high-strength synthetic fiber of 0 kg / mm ² or more as a core yarn and covering a multifilament yarn of thermoplastic synthetic fiber as a winding yarn. A cut prevention glove, wherein the hard composite yarn and the high-strength composite yarn are knitted to form the same stitch. 2. The incision-preventing glove according to claim 1, wherein the elastic composite yarn obtained by covering the core yarn made of the elastic fiber with the multifilament yarn of the thermoplastic synthetic fiber is a hard composite yarn and a high-strength composite yarn. An anti-cut wound glove that is knitted together with a thread so that the three form the same stitch. 3. The anti-cut wound glove according to claim 1, wherein the hard composite yarn appears more on the glove surface side than the high-strength composite yarn. 4. The anti-cut wound glove according to claim 1, wherein a protective layer made of synthetic resin, rubber, or the like is provided on a required portion of the glove surface.