CN110644243A

CN110644243A - Processing technology of cutting-resistant gloves

Info

Publication number: CN110644243A
Application number: CN201910795415.5A
Authority: CN
Inventors: 赵道瑞
Original assignee: Xuzhou Huatong Gloves Co Ltd
Current assignee: Xuzhou Huatong Gloves Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-01-03

Abstract

The invention provides a processing technology of a pair of anti-cutting gloves, and relates to the field of labor protection gloves. The processing technology of the cut-resistant glove comprises the preparation of a glove core and the coating of the glove core. The glove core adopts a structure of interweaving inner layer yarns and outer layer yarns, and the outer layer yarns are composed of polyethylene fibers with ultrahigh relative molecular mass and carbon fibers coated by bamboo charcoal polyester fibers; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and spandex yarn covered by nylon in a spiral mode; the glove core coating is formed by coating a layer of composite material on the exterior of the knitted glove core; the cutting-resistant gloves disclosed by the invention are simple in processing technology, large-scale automatic production can be realized, and the processed cutting-resistant gloves not only have excellent cutting-resistant performance, are comfortable and light to wear, have good hand flexibility and long service life, but also reduce the replacement times.

Description

Processing technology of cutting-resistant gloves

Technical Field

The invention relates to the field of labor protection gloves, in particular to a processing technology of a cutting-resistant glove.

Background

In recent years, people have higher and higher requirements on the safety protection performance of textiles, and the development and research of functional protection textiles such as cutting prevention, wear resistance and the like have attracted more and more attention. At present, most of labor-intensive enterprises adopt advanced production equipment, and gloves worn by operators are common products with weak cutting resistance, such as canvas gloves and cotton yarn gloves, hand injury accidents are easily caused, and the gloves are often poor in wear resistance and easy to damage.

Therefore, in recent years, domestic enterprises have invested more and more research in the production technology of the high-strength cut-proof gloves. The cutting-resistant gloves have the advantages of extraordinary cutting-resistant performance and abrasion-resistant performance, so that the gloves become high-quality hand labor protection articles. The service life of a pair of anti-cutting gloves is equivalent to 500 pairs of common line gloves, so that the gloves are called as 'one to one hundred', the gloves become high-quality hand labor protection articles, and can be widely used in the industries of meat cutting, glass processing, metal processing, petrochemical industry, disaster relief, emergency rescue, fire rescue and the like.

The most common method for protecting gloves against cut is to attach a protective part in the outer layer or the interlayer or the inner layer of the fabric, the protective part can be made of hard materials such as metal plates or metal nets, the protective part can better achieve the effect of preventing cut, but the gloves are too hard, joints are not easy to bend, workers are inconvenient to wear when using the gloves, although the protection to hands can be improved, the working efficiency can be affected, and the service life of the gloves against cut is relatively short, and the gloves need to be frequently replaced.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a processing technology of a pair of anti-cutting gloves, and aims to solve the technical problems that the existing anti-cutting gloves are short in service life, poor in hand flexibility during use and influenced in working efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

a processing technology of a cut-resistant glove comprises glove core preparation and glove core coating.

Furthermore, the glove core is formed by interweaving inner layer yarns and outer layer yarns; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and nylon which are spirally coated on the outer layer of the spandex yarn; the outer layer yarn is made of carbon fibers, and is composed of an outer layer of carbon fibers coated by polyethylene fibers and bamboo charcoal polyester fibers with ultrahigh relative molecular mass.

Further, the inner layer yarn and the outer layer yarn are woven into the glove core through an automatic glove knitting machine, and the weaving sequence is as follows: the little finger, ring finger, middle finger and index finger, then the half sole part, the big finger, the half sole part and the rib print are knitted.

Furthermore, the glove core is a seamless glove core.

Further, the coating glove core is formed by coating a layer of composite material on the outer part of the knitted glove core to form a coating, wherein the thickness of the coating is 0.1-0.5mm, and the coated glove core is dried at the temperature of 60 ℃ to be constant in weight to obtain the cutting-resistant glove.

Further, the weight ratio of the polyethylene fiber with ultrahigh relative molecular mass, the carbon fiber and the bamboo charcoal polyester fiber in the outer layer yarn is 30-42:2-5: 9-17.

Further, the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarn is 15-18: 6-10.

Further, the composite material is prepared from the following raw materials in parts by weight: 1-5 parts of graphene oxide, 2-10 parts of waterborne polyurethane, 5-15 parts of collagen, 0.5-1 part of tetra-n-butyl titanate and 15-20 parts of hydrochloric acid solution with the mass concentration of 8%.

Preferably, the weight ratio of the tetrabutyl titanate to the hydrochloric acid solution with the mass concentration of 8% in the composite material is 0.8: 17.5.

The invention has the following beneficial effects:

1. the cutting-resistant gloves disclosed by the invention are simple in processing technology, large-scale automatic production can be realized, and the processed cutting-resistant gloves not only have excellent cutting-resistant performance, are comfortable and light to wear, have good hand flexibility and long service life, but also reduce the replacement times. Through tests, the cutting resistance far exceeds the national standard and the European Union standard, the cutting resistant times reach 32 times, and the protection grade of the cutting resistant gloves disclosed by the invention is 5 grade according to the grade of the EN388 glove protection standard test. The gloves processed by the invention still maintain excellent cutting resistance especially in high-temperature environment; meanwhile, the paint also has excellent antibacterial, electromagnetic shielding and self-cleaning performances.

2. The invention adopts a structure of interweaving inner layer yarns and outer layer yarns, wherein the outer layer yarns are composed of polyethylene fibers with ultrahigh relative molecular mass and carbon fibers coated by bamboo charcoal polyester fibers; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and spandex silk covered by nylon in a spiral mode. Compared with the traditional outer layer yarn which only adopts high-strength polyethylene fibers, the ultra-high relative molecular weight polyethylene fibers and bamboo charcoal polyester fibers are used in the invention, and the ultra-high relative molecular weight polyethylene fibers have various excellent performances such as impact resistance, wear resistance, chemical resistance, stress crack resistance, self-lubrication, adhesion resistance, safety, health and the like; the bamboo charcoal polyester fiber is a novel textile raw material, and has excellent adsorbability, drapability, rigidity and flexibility and certain antibacterial performance; the invention combines the two components to be used for the outer layer yarn, thereby overcoming the defects that the surface hardness of the polyethylene fiber with ultrahigh relative molecular mass is low and the entanglement is easily caused in the weaving process and solving the defect that the bamboo charcoal polyester fiber has poor air permeability; the combination of the two improves the cutting resistance of the outer layer yarn, and also ensures that the outer layer yarn has good air permeability, so that the processed cutting-resistant glove also has good air permeability and texture, and the comfort of wearing hands is obviously improved. The invention selects the carbon fiber as the core yarn, compared with the traditional steel wire, the invention has the characteristics of light weight, high strength, high modulus, corrosion resistance, low expansion, fatigue resistance and good biocompatibility, when the carbon fiber is used as the core yarn to be coated, the sewing performance is greatly improved, the fracture toughness of the fiber is increased, the friction coefficient is increased, thereby ensuring that the outer layer of the glove core has enough puncture resistance and cutting resistance, prolonging the service life of the cutting-resistant glove and reducing the replacement times.

3. According to the invention, after the glove core is prepared, the glove core is coated with the composite material, so that the surface of the glove core is provided with a layerA coating with a thickness of 0.1-0.5 mm. The composite material adopts graphene oxide, waterborne polyurethane, collagen, tetrabutyl titanate and hydrochloric acid solution with the mass concentration of 8%. The composite material is acidic due to the addition of the hydrochloric acid solution in the composite material, and due to the acidic condition, collagen with positive charges is attached to the surfaces of the bamboo charcoal polyester fiber and the polyethylene fiber and generates a graphene oxide/collagen compound with negative charges under the electrostatic action, meanwhile, the collagen has certain viscosity, is strong in binding capacity and not easy to fall off, can enhance the binding capacity with the graphene oxide, and ensures that the graphene is firmly fixed on a glove core, so that the better anti-cutting glove has an excellent electromagnetic shielding function. Meanwhile, hydrochloric acid in the composite material reacts with tetrabutyl titanate to generate titanium dioxide nanocrystals, and because a large number of hydroxyl groups exist on the surface of the fiber, the interaction of the hydroxyl groups and Ti-0 bonds promotes the titanium dioxide nanocrystals to be continuously deposited on the surface of the fiber to form titanium dioxide nanoparticles, and then the titanium dioxide nanoparticles can be firmly attached to the surface of the fiber to form a layer of compact titanium dioxide film. The titanium dioxide can decompose organic pollutants under the action of ultraviolet light, so that the prepared cutting-resistant gloves have excellent self-cleaning performance, and the use of detergents and water is reduced; when the hydrochloric acid solution in the composite material is excessive, Ti 0 is inhibited₂Nucleation of (A), destruction of the glove core fiber structure, leading to a large amount of Ti 0₂The particles fall off the fibers; therefore, only when the weight ratio of the hydrochloric acid solution having a mass concentration of 8% to tetra-n-butyl titanate in the composite material is 0.8:17.5, Ti 0₂The particles can be firmly adsorbed on the fiber to form a layer of compact titanium dioxide film to play a role.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below.

Detailed Description

The following is a detailed description of embodiments of the invention, but the invention can be implemented in many different ways, as defined and covered by the claims.

Example 1

A processing technology of a cutting-resistant glove comprises glove core preparation and a glove core coating, wherein the glove core is formed by interweaving inner layer yarns and outer layer yarns; the inner layer yarn and the outer layer yarn are woven into the glove core through an automatic glove knitting machine, and the weaving sequence is as follows: then knitting the half sole part, the thumb, the back sole part and the rib print mouth; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and nylon which are spirally coated on the outer layer of the spandex yarn; the outer layer yarn is made of carbon fibers, and consists of polyethylene fibers with ultrahigh relative molecular mass and an outer layer of carbon fibers coated by bamboo charcoal polyester fibers; the glove core is a seamless glove core; the coating glove core is characterized in that a layer of composite material is coated outside the knitted glove core to form a coating, the thickness of the coating is 0.1mm, and the coated glove core is placed in an environment at 60 ℃ for drying and constant weight to obtain the cutting-resistant glove; the weight ratio of the ultra-high relative molecular mass polyethylene fibers, the carbon fibers and the bamboo charcoal polyester fibers in the outer layer yarns is 30:2: 9; the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarns is 5: 2; the composite material is prepared from the following raw materials in parts by weight: 1 part of graphene oxide, 2 parts of waterborne polyurethane, 5 parts of collagen, 0.5 part of tetra-n-butyl titanate and 15 parts of hydrochloric acid solution with the mass concentration of 8%.

Example 2

A processing technology of a cutting-resistant glove comprises glove core preparation and a glove core coating, wherein the glove core is formed by interweaving inner layer yarns and outer layer yarns; the inner layer yarn and the outer layer yarn are woven into the glove core through an automatic glove knitting machine, and the weaving sequence is as follows: then knitting the half sole part, the thumb, the back sole part and the rib print mouth; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and nylon which are spirally coated on the outer layer of the spandex yarn; the outer layer yarn is made of carbon fibers, and consists of polyethylene fibers with ultrahigh relative molecular mass and an outer layer of carbon fibers coated by bamboo charcoal polyester fibers; the glove core is a seamless glove core; the coating glove core is characterized in that a layer of composite material is coated outside the knitted glove core to form a coating, the thickness of the coating is 0.5mm, and the coated glove core is placed in an environment at 60 ℃ for drying and constant weight to obtain the cutting-resistant glove; the weight ratio of the ultra-high relative molecular mass polyethylene fibers, the carbon fibers and the bamboo charcoal polyester fibers in the outer layer yarns is 42:5: 17; the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarn is 9: 5; the composite material is prepared from the following raw materials in parts by weight: 5 parts of graphene oxide, 10 parts of waterborne polyurethane, 15 parts of collagen, 1 part of tetra-n-butyl titanate and 20 parts of hydrochloric acid solution with the mass concentration of 8%.

Example 3

A processing technology of a cutting-resistant glove comprises glove core preparation and a glove core coating, wherein the glove core is formed by interweaving inner layer yarns and outer layer yarns; the inner layer yarn and the outer layer yarn are woven into the glove core through an automatic glove knitting machine, and the weaving sequence is as follows: then knitting the half sole part, the thumb, the back sole part and the rib print mouth; the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and nylon which are spirally coated on the outer layer of the spandex yarn; the outer layer yarn is made of carbon fibers, and consists of polyethylene fibers with ultrahigh relative molecular mass and an outer layer of carbon fibers coated by bamboo charcoal polyester fibers; the glove core is a seamless glove core; the coating glove core is characterized in that a layer of composite material is coated outside the knitted glove core to form a coating, the thickness of the coating is 0.35mm, and the coated glove core is placed in an environment at 60 ℃ for drying and constant weight to obtain the cutting-resistant glove; the weight ratio of the ultra-high relative molecular mass polyethylene fibers, the carbon fibers and the bamboo charcoal polyester fibers in the outer layer yarns is 36:3.5: 13; the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarn is 16.5: 8; the composite material is prepared from the following raw materials in parts by weight: 3.5 parts of graphene oxide, 6 parts of waterborne polyurethane, 10 parts of collagen, 0.8 part of tetra-n-butyl titanate and 17.5 parts of hydrochloric acid solution with the mass concentration of 8%.

Test examples

Comparison of cut resistance of cut resistant gloves made according to the invention

1. The test method comprises the following steps: referring to EN388 mechanical protective glove standard, under the conditions that the cutting resistant times are used as evaluation indexes, the temperature is (200 +/-50) DEG C, and the relative humidity is (60 +/-10)%, the palm parts of the gloves with the sizes of (100 +/-10) mm in length and (60 +/-6) mm in width, which are prepared from the cutting resistant gloves of example 1 and example 2 and the conventional commercially available cutting resistant gloves, are taken as samples, comparison tests are respectively carried out on a cutting resistant tester under the uninterrupted force of 5N, the grade is determined according to the times which can be borne by the samples before the samples are cut, and the cutting resistant times of the gloves are tested on the cutting resistant tester, wherein the larger the times are more excellent in cutting resistant performance; the cutting resistance grade reaches a first-grade level when the cutting resistance index is less than or equal to 1.2; the index reaches a second level when the index is less than or equal to 2.5; when the index is less than or equal to 5, the three-level is reached; when the index is less than or equal to 10, the four-level is reached; when the index is less than or equal to 20, the five-grade level is reached.

2. The test results are as follows

The cut-resistant gloves prepared in the example 1, the example 2 and the example 3 are tested to have the cut-resistant times of 29 times, 28 times and 32 times in sequence, and the grade reaches the level of five. And the number of the cutting times of the existing commercially available cutting-proof gloves is only 25.

Test example 2

Determination of flexibility Properties of cut-resistant gloves made according to the invention

1. The test method comprises the following steps: the whole glove without any softening treatment (e.g., patting or squeezing, etc.) was extracted, and a smooth stainless steel test bar having a diameter of 6.5mm and a length of 40mm was prepared. The test stick is placed on a flat surface, the tester wears the glove and picks up the test stick with the index finger and thumb grip, and the tester should pick up the test stick continuously not less than 3 times within 30 s.

2. The test results are as follows

After testing, after the cut-resistant gloves prepared in example 1, example 2 and example 3 were worn, the number of times that the tester continuously picked up the test bar within 30s was more than 3 times, and the flexibility requirement was satisfied.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A processing technology of a cutting-resistant glove comprises glove core preparation and a glove core coating, wherein the glove core is formed by interweaving inner layer yarns and outer layer yarns; the inner layer yarn and the outer layer yarn are woven into the glove core through an automatic glove knitting machine, and the weaving sequence is as follows: then knitting the half sole part, the thumb, the back sole part and the rib print mouth; the glove core is a seamless glove core; the method is characterized in that:

the inner layer yarn is composed of polyethylene fiber with ultrahigh relative molecular mass and nylon which are spirally coated on the outer layer of the spandex yarn; the outer layer yarn is made of carbon fibers, and consists of polyethylene fibers with ultrahigh relative molecular mass and an outer layer of carbon fibers coated by bamboo charcoal polyester fibers; the coating glove core is characterized in that a layer of composite material is coated outside the knitted glove core to form a coating, the thickness of the coating is 0.1-0.5mm, and the coated glove core is placed in an environment with the temperature of 60 ℃ for drying and constant weight to obtain the cutting-resistant glove;

the weight ratio of the ultra-high relative molecular mass polyethylene fiber, the carbon fiber and the bamboo charcoal polyester fiber in the outer layer yarn is 30-42:2-5: 9-17;

the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarn is 15-18: 6-10;

the composite material is prepared from the following raw materials in parts by weight: 1-5 parts of graphene oxide, 2-10 parts of waterborne polyurethane, 5-15 parts of collagen, 0.5-1 part of tetra-n-butyl titanate and 20 parts of hydrochloric acid solution with the mass concentration of 8%.

2. The process for manufacturing cut-resistant gloves according to claim 1, wherein the weight ratio of tetra-n-butyl titanate to the hydrochloric acid solution with a mass concentration of 8% in the composite material is 0.8: 17.5.

3. The process of claim 1, wherein the cutting-resistant glove is a cut-resistant glove,

the weight ratio of the ultra-high relative molecular weight polyethylene fibers, the carbon fibers and the bamboo charcoal polyester fibers in the outer layer yarn is 36:3.5: 13.

4. The process of claim 1, wherein the cutting-resistant glove is a cut-resistant glove,

the weight ratio of the ultra-high relative molecular mass polyethylene fibers to the nylon in the inner layer yarn is 16.5: 8.