阅读说明：本技术 一种可生物降解的手套及其制备方法 (Biodegradable glove and preparation method thereof ) 是由 秦爽 李健男 王星 严成锋 于 2020-12-09 设计创作，主要内容包括：本发明属于手套技术领域,具体涉及一种可生物降解的手套及其制备方法。一种可生物降解的手套的制备方法包括如下步骤：S1,将络好纱的铝杯固定在纱锭上,将玻璃纤维或钢纱金属穿过纱线张力控制器和纱锭孔作为纱芯,或将玻璃纤维或钢纱金属穿过纱线张力控制器后穿在捻线机器上作为纱芯,将生物可降解长丝纱或短纤维纱作为外纱进行缠绕包覆,形成手套用包覆纱线,再在手套机上织成纺织品手套；或将生物可降解长丝纱或短纤维纱直接在手套机上织成纺织品手套；S2,纺织品手套浸胶后形成可降解的手套。该制备方法简单易操作,适合大规模生产,且制备出的可生物降解手套不仅有好的防滑性和耐磨性,还有好的生物降解性能。(The invention belongs to the technical field of gloves, and particularly relates to a biodegradable glove and a preparation method thereof. A method for making a biodegradable glove comprising the steps of: s1, fixing the aluminum cup with the wound yarn on a spindle, enabling glass fiber or steel yarn metal to penetrate through a yarn tension controller and a spindle hole to serve as a yarn core, or enabling the glass fiber or steel yarn metal to penetrate through the yarn tension controller and then penetrate through a twisting machine to serve as the yarn core, enabling the biodegradable filament yarn or short fiber yarn to serve as an outer yarn to be wound and wrapped to form wrapping yarn for gloves, and then weaving textile gloves on a glove machine; or the biodegradable filament yarn or the short fiber yarn is directly woven into the textile glove on a glove machine; and S2, forming the degradable gloves after the textile gloves are dipped. The preparation method is simple and easy to operate, is suitable for large-scale production, and the prepared biodegradable gloves have good anti-skid property, wear resistance and biodegradability.)

1. A method for making a biodegradable glove, comprising the steps of:

s1, fixing the aluminum cup with the wound yarn on a spindle, enabling glass fiber or steel yarn metal to penetrate through a yarn tension controller and a spindle hole to serve as a yarn core, or enabling the glass fiber or steel yarn metal to penetrate through the yarn tension controller and then penetrate through a twisting machine to serve as the yarn core, enabling the biodegradable filament yarn or short fiber yarn to serve as an outer yarn to be wound and wrapped to form wrapping yarn for gloves, and then weaving textile gloves on a glove machine; or the biodegradable filament yarn or the short fiber yarn is directly woven into the textile glove on a glove machine;

s2, forming biodegradable gloves after dipping the textile gloves;

the impregnation process comprises the following steps of,

s21, stirring;

s22 hand mold preheating: sleeving the glove on a hand mold, and preheating the hand mold to 40-90 ℃;

s23, dip-coating and glue homogenizing;

s24 baking: placing the hand mold sleeved with the gloves into an environment with the temperature of 90-120 ℃ for baking for 1-20 min;

s25 washing with clear water, soaking;

s26 baking: baking the washed and soaked gloves in an environment with the temperature of 90-120 ℃ for 1-20 min;

the raw material in the step S21 includes water, polyurethane, dimethylformamide and biodegradable additive or water, butyronitrile and biodegradable additive, and the biodegradable additive is at least one of natural cellulose, synthetic polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide, and aldohexose.

2. The method of preparing biodegradable gloves according to claim 1, wherein the biodegradable filament yarn is prepared by the following steps in step S1: baking a biodegradable additive in an environment of 50-90 ℃ for 2-6h, blending and adding the biodegradable additive into polyethylene glycol terephthalate after pre-crystallization and drying, obtaining pre-drafted filament yarn after spinning nascent fiber and drafting, and preparing the biodegradable filament yarn through hot drafting and false twist crimping processes; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: baking the biodegradable additive in an environment of 50-90 ℃ for 2-6h, blending and adding the biodegradable additive into polyethylene glycol terephthalate after pre-crystallization and drying, producing short fibers by spinning nascent fibers, drafting, curling and cutting, and spinning to obtain short fiber yarns; the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

3. The method of claim 2, wherein the biodegradable additive is present in an amount of 0.5-10% by weight of the biodegradable additive and the polyethylene terephthalate.

4. The method of preparing biodegradable gloves according to claim 1, wherein the biodegradable filament yarn is prepared by the following steps in step S1: blending and adding a biodegradable additive into a polyamide chip, obtaining a pre-drafted filament yarn after drafting of spun nascent fiber, and preparing a biodegradable filament yarn DTY through hot drafting and false twist crimping processes; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: blending biodegradable additive into polyamide, spinning the spun nascent fiber, drafting, crimping and cutting to obtain short fiber, and spinning to obtain short fiber yarn; the first roller consists of a yarn feeding roller and a leather collar during drafting, the false twister in the false twist crimping process is a polyurethane flexible disk, and the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride modified polylactic acid (MPLA), butanediamine modified polylactic acid (BMPLA), monosaccharide and aldohexose.

5. The method of claim 4, wherein the biodegradable additive is present in an amount of 0.5-10% by weight of the biodegradable additive and the polyamide.

6. The method of preparing biodegradable gloves according to claim 1, wherein the biodegradable filament yarn is prepared by the following steps in step S1: blending and adding a biodegradable additive into a polypropylene chip, obtaining pre-drafted filament yarn after spinning primary fiber and drafting, and preparing the biodegradable polypropylene fiber filament yarn through hot drafting and false twisting crimping processes; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: blending and adding a biodegradable additive into a polypropylene chip, producing short fibers by spinning nascent fibers, drafting, curling and cutting, and spinning to obtain short fiber yarns; the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

7. The method of claim 6, wherein the biodegradable additive is present in an amount of 0.5-10% by weight of the biodegradable additive and the polypropylene fiber.

8. The method for preparing biodegradable gloves according to claim 1, wherein the step S21 is mixing water, polyurethane, dimethylformamide and biodegradable additive, stirring at high speed for 10-60min, and standing for 1-48min, wherein the water, polyurethane, dimethylformamide and biodegradable additive are calculated according to the following parts by weight:

the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

9. The method for preparing biodegradable gloves according to claim 1, wherein the step of mixing in step S21 is mixing water, butyronitrile and biodegradable additive, stirring at high speed for 10-60min, and standing for 1-48h, wherein the water, butyronitrile and biodegradable additive are in parts by weight:

5-80 parts of water

15-94.5 parts of butyronitrile

0.5-10 parts of biodegradable additive

The biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose;

and (3) after homogenizing in the S23, blending and adding a salt spraying step, wherein the salt spraying step is sodium chloride spraying or mirabilite spraying.

10. A biodegradable glove, characterized in that: prepared by the preparation method of any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of gloves, and particularly relates to a biodegradable glove and a preparation method thereof.

Background

In order to prevent slipping and resist wear, the industrial or civil gloves in the market at present use synthetic polymers such as butyronitrile, polyurethane and the like as raw materials, and the gloves are consumables, so that the replacement frequency is high, and the discarded gloves can cause pollution to the environment. With the national emphasis on environmental problems, people have deeper knowledge on clean production modes and environment-friendly materials, so that the problem of how to improve the degradation performance of the gloves becomes an urgent need to be solved while solving the wear-resistant and anti-slip performances.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the preparation method of the biodegradable gloves, the preparation method is simple and easy to operate, and the prepared gloves not only have good skid resistance, wear resistance and dust resistance, but also have degradable performance. It is yet another object of the present invention to provide a biodegradable glove.

The purpose of the invention is realized by the following technical scheme: a method of making a biodegradable glove, comprising the steps of:

s1, fixing the aluminum cup with the wound yarn on a spindle, enabling glass fiber or steel yarn metal to penetrate through a yarn tension controller and a spindle hole to serve as a yarn core, winding and coating the biodegradable filament yarn serving as an outer yarn to form a coated yarn for gloves, and weaving textile gloves on a glove knitting machine;

s2, forming degradable gloves after dipping the textile gloves;

the impregnation process comprises the following steps of,

s21, stirring;

s22 hand mold preheating: sleeving the glove on a hand mold, and preheating the hand mold to 40-90 ℃;

s23, dip-coating and glue homogenizing;

s24 baking: placing the hand mold sleeved with the gloves into an environment with the temperature of 90-120 ℃ for baking for 1-20 min;

s25 washing with clear water, soaking;

s26 baking: and baking the washed and soaked gloves in an environment with the temperature of 90-120 ℃ for 1-20 min.

The raw material in the step S21 includes water, polyurethane, dimethylformamide and biodegradable additive or water, butyronitrile and biodegradable additive, and the biodegradable additive is at least one of natural cellulose, synthetic polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide, and aldohexose.

And blending and adding a ceramic part into the spindle hole.

The yarn has the uneven condition of tension when spooling and feeding, through tension controller, can effectually avoid the uneven problem of tension.

The ceramic parts are blended and added in the spindle holes, so that the smoothness in the yarn covering process can be improved, and the lubricating effect is achieved. The metal friction between glass fiber, steel yarn metal and a spindle is reduced, and the yarn breakage rate and the yarn abrasion are reduced.

The preparation method is simple and easy to operate, and the prepared gloves not only have good skid resistance, wear resistance and dust resistance, but also have degradability.

The biodegradable filament yarn in the step S1 is prepared by the following steps: baking a biodegradable additive in an environment of 50-90 ℃ for 2-6h, blending and adding the biodegradable additive into polyethylene glycol terephthalate after pre-crystallization and drying, obtaining pre-drafted filament yarn after spinning nascent fiber and drafting, and preparing the biodegradable filament yarn through hot drafting and false twist crimping processes; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: baking the biodegradable additive in an environment of 50-90 ℃ for 2-6h, blending and adding the biodegradable additive into polyethylene glycol terephthalate after pre-crystallization and drying, producing short fibers by spinning nascent fibers, drafting, curling and cutting, and spinning to obtain short fiber yarns; the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

Spinning polyester fiber, and requiring very low water content; the biodegradable master batch is hydrophilic master batch containing certain moisture, and can cause hydrolysis of polyester macromolecules in spinning flow. After 2-6 hours and drying at 50-90 ℃, the moisture content of the spun yarn can meet the requirement of polyester spinning, and hydrolysis of polyester molecules cannot be generated.

The biodegradable additive accounts for 0.5-10% of the total weight of the biodegradable additive and the polyethylene glycol terephthalate.

Preferably, the biodegradable additive is a composition consisting of biodegradable oligomer polyester, modified polylactic acid (BMPLA) of butanediamine and aldohexose 1 (1-3): 1-3).

The mixture in the proportion is used as the biodegradable additive, so that the prepared gloves are easier to degrade, and good skid resistance, wear resistance and high elasticity are maintained.

More preferably, the biodegradable additive is a composition consisting of biodegradable oligomer polyester, modified polylactic acid of Butanediamine (BMPLA) and aldohexose 1:1: 1.

In another embodiment, the biodegradable filament yarn is prepared in step S1 by: blending and adding a biodegradable additive into polyamide, obtaining pre-drafted filament yarn after spinning nascent fiber and drafting, and preparing the biodegradable filament yarn through hot drafting and false-twist crimping processes, wherein a first roller during drafting consists of a yarn feeding roller and a leather collar, and a false twister in the false-twist crimping process is a polyurethane flexible disk; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: blending biodegradable additive into polyamide, spinning the spun nascent fiber, drafting, crimping and cutting to obtain short fiber, and spinning to obtain short fiber yarn; the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

Because the outer surface of the nylon fiber is coated by the boot layer, and the nylon fiber is hydrophilic, when the hydrophilic biodegradable fiber is added in blending, the POY has a small surface friction coefficient and is easy to slip. In order to ensure the fiber holding force during drafting, the first roller (feeding roller) is composed of a yarn feeding roller and a leather collar, and a leather roller is not used; floppy discs for false twisters, such as polyurethane pu.

The biodegradable additive accounts for 0.5-10% of the total weight of the biodegradable additive and the polyamide.

Preferably, the biodegradable additive is a composition consisting of biodegradable oligomer polyester and aldohexose 1 (1-3).

The invention adopts the wadding degradable additive in the proportion, not only maintains the good skid resistance and wear resistance of the gloves, but also has better degradability, low production cost and suitability for batch production.

More preferably, the biodegradable additive is a composition of polyvinyl alcohol and aldohexose 1: 1.

In another embodiment, the biodegradable filament yarn is prepared in step S1 by: blending and adding a biodegradable additive into a polypropylene chip, obtaining pre-drafted filament yarn after spinning primary fiber and drafting, and preparing the biodegradable polypropylene fiber filament yarn through hot drafting and false twisting crimping processes; the preparation method of the staple fiber yarn in the step S1 comprises the following steps: blending and adding a biodegradable additive into a polypropylene chip, producing short fibers by spinning nascent fibers, drafting, curling and cutting, and spinning to obtain short fiber yarns; the biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

The biodegradable additive accounts for 0.5-10% of the total weight of the biodegradable additive and the polypropylene fiber.

The step S21 is to mix water, polyurethane, dimethylformamide and biodegradable additive, stir at high speed for 10-60min, and then stand for 1-120min, wherein the water, polyurethane, dimethylformamide and biodegradable additive are calculated according to the parts by weight:

the dimethyl formamide is used as a solvent of the polyurethane PU and is difficult to volatilize and remove in a normal state. Therefore, water is used as a diluent to accelerate the removal of DMF, so that the gloves are molded as soon as possible.

The biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

In another technical scheme, the step of mixing in step S21 is to mix water, butyronitrile and biodegradable additive, stir at high speed for 10-60min, and then stand for 1-48min, wherein the water, butyronitrile and biodegradable additive are in parts by weight:

5-80 parts of water

15-94.5 parts of butyronitrile

0.5-10 parts of biodegradable additive

And the step of blending and adding salt spraying after homogenizing in S23, wherein the salt spraying is sodium chloride spraying or mirabilite spraying.

After the biodegradable auxiliary agent is added in the blending way, the surface of the nitrile is smooth, the surface of the nitrile is sprayed with salt and then removed, and the anti-skid gloves with the concave-convex structures formed on the rubber surfaces are formed, so that the anti-skid performance of the gloves is improved.

The biodegradable additive is at least one of natural cellulose, artificially synthesized polycaprolactone, polyvinyl alcohol, biodegradable oligomer polyester, aromatic-aliphatic ester polymer, maleic anhydride-based modified polylactic acid (MPLA), butanediamine-based modified polylactic acid (BMPLA), monosaccharide and aldohexose.

Compared with the prior art, the invention has the advantages that:

the preparation method is simple and easy to operate, is suitable for large-scale production, and the prepared gloves have good skid resistance, wear resistance, high elasticity and dust resistance and degradable performance.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1

A method of making a biodegradable glove, comprising the steps of:

1. the polyamide slices enter a screw melt spinning zone, and the biodegradable additive is blended and added into spinning fluid through an injector according to the weight ratio of 1 percent; POY fiber is prepared through a conventional spinning process, and then 150D/48F DTY fiber is obtained through a conventional DTY drafting and false twisting process. The fiber strength was 3.8cn/dtex, and the elongation at break was 25%. The biodegradable additive is a composition of biodegradable oligomer polyester and aldohexose in a ratio of 1: 1.

2. The glove is woven by a common glove machine, and 10-15 g of single glove is used.

3. Mixing water, butyronitrile and biodegradable additive, stirring at high speed for 60min, standing for 60min, and vulcanizing completely to obtain the usable butyronitrile rubber.

The water, the butyronitrile and the biodegradable additive are as follows according to parts by weight: 5 parts of water, 30 parts of butyronitrile and 1 part of biodegradable additive. The biodegradable additive is a composition consisting of biodegradable oligomer polyester and aldohexose 1: 1.

4. Sleeving the glove on a hand mold, preheating the hand mold to 40 ℃, and then dipping the hand mold, wherein the surface of the hand core is dipped and adhered with butyronitrile glue; uniformly spraying 2g of sodium chloride on the nitrile-butadiene rubber through a salt pond to form adhesion, and then baking the hand mold sleeved with the gloves in an environment with the temperature of 120 ℃ for 5 min; washing with clear water, soaking; and (3) placing the washed and soaked gloves into an environment with the temperature of 90 ℃ for baking for 5 min. Obtaining the biodegradable butyronitrile antiskid gloves of the common nylon DTY.

In the case of the example 2, the following examples are given,

a method of making a biodegradable glove, comprising the steps of:

1. after being pre-crystallized and dried, polyethylene terephthalate slices enter a screw, and a biodegradable additive which is formed by baking for 6 hours in an environment at 50 ℃ and is injected by a syringe in a weight ratio of 1.5% is injected into the screw at the opening of the screw, wherein the biodegradable additive is a composition consisting of biodegradable oligomer polyester, modified polylactic acid (BMPLA) of butanediamine and aldohexose in a ratio of 1:1: 1; in the heating box body, the two are blended into molten spinning fluid, and the biodegradable polyester staple fiber with the specification of 38mm x 1.5dtex is prepared by the conventional spinning processes of spinning a primary fiber board, drafting, curling, cutting and the like. The fiber had a strength of 4.0cn/dtex and an elongation of 25%. And (3) subjecting the biodegradable polyester staple fibers to a cotton spinning system of ring spinning and a conventional spinning process to obtain the biodegradable polyester staple fiber yarn.

2. The glove is woven by a common glove machine, and 10-15 g of single glove is used.

3. Adding dimethylformamide and water as solvents into polyurethane in a blending manner, simultaneously adding 2% of biodegradable additives in a blending manner, stirring at a high speed for 30min, standing for 48min for defoaming, and preparing a gum dipping material for later use. The water, the polyurethane, the dimethylformamide and the biodegradable additive are as follows according to parts by weight: 10 parts of water, 20 parts of polyurethane, 10 parts of dimethylformamide and 2 parts of biodegradable additive. The biodegradable additive is a composition consisting of biodegradable oligomer polyester, modified polylactic acid (BMPLA) of butanediamine and aldohexose 1:1: 1.

4. After the glove is sleeved on the hand mold, the hand mold is preheated to 40 ℃ and then dipped with glue, and the surface of the hand core is dipped with polyurethane glue. Turning over the hand mold to homogenize the glue, then putting the glue into a water tank, soaking the glue in flowing water for 1 hour, and diluting to remove the dimethylformamide so as to solidify and form the polyurethane. And drying in an oven at 80 ℃. Obtaining the biodegradable terylene PU anti-skid gloves.

In the case of the example 3, the following examples are given,

a method of making a biodegradable glove, comprising the steps of:

1. after being pre-crystallized and dried, polyethylene terephthalate slices enter a screw, and a biodegradable additive which is formed by baking for 6 hours at 50 ℃ and is based on maleic anhydride modified polylactic acid (MPLA), biodegradable oligomer polyester and aldohexose in a weight ratio of 1.5% is injected at the screw port by using an injector; in a heating box body, the two are blended into a molten spinning fluid, and the FDY polyester filament yarn of 400D/96F is prepared by the spinning process of spinning the spun nascent fiber board, drafting and other conventional high-strength polyester. The filament yarn had a tenacity of 7.5cn/dtex and an elongation of 20%.

Fixing an aluminum cup wound with 400D high-strength polyester filament yarns on a spindle, enabling 200D glass fiber filament yarns to pass through a yarn tension controller and a spindle hole to serve as yarn cores, enabling the high-strength polyester filament yarns to serve as outer yarns to be wound and coated, and twisting for about 500 turns to obtain the coating yarns for the gloves, wherein the high-strength polyester fiber is wrapped with the glass fiber filament yarns.

2. Adopts a common glove knitting machine, and adopts knitting weave and chinlon to wrap spandex yarn. A glove of 20 grams was formed by weaving a U2 double layer structure.

3. Mixing water, butyronitrile and biodegradable additive, stirring at high speed for 60min, standing for 48min, and vulcanizing completely to obtain the usable butyronitrile rubber.

The water, the butyronitrile and the biodegradable additive are as follows according to parts by weight: 5 parts of water, 50 parts of butyronitrile and 1 part of biodegradable additive. The biodegradable additive is a composition consisting of maleic anhydride modified polylactic acid (MPLA), biodegradable oligomer polyester and aldohexose in a ratio of 1:3:3

4. After the glove is sleeved on the hand mold, the hand mold is preheated to 60 ℃ and then dipped with glue, and the surface of the hand core is dipped with butyronitrile glue; uniformly spraying 3g of sodium chloride on the nitrile-butadiene rubber through a salt pond to form adhesion, and then placing the hand mold sleeved with the gloves into an environment with the temperature of 100 ℃ for baking for 5 min; washing with clear water, soaking; and (3) placing the washed and soaked gloves into an environment with the temperature of 90 ℃ for baking for 120 min. Obtaining the biodegradable high-strength polyester anti-cutting nitrile anti-slip gloves.

Example 4

A method of making a biodegradable glove, comprising the steps of:

the method comprises the following steps of (1) enabling polyamide chips to enter a screw melt spinning zone, blending and adding a biodegradable additive into spinning fluid through an injector according to the proportion of 2%; the high-strength nylon filament yarn of 100D/48F is prepared by the conventional spinning process of the high-strength nylon. The fiber strength was 7cn/dtex, and the elongation at break was 110%. The biodegradable additive is a composition composed of maleic anhydride modified polylactic acid (MPLA) and aldohexose in a mass ratio of 1: 1.

Fixing an aluminum cup wrapped with 100D/48F high-strength nylon filament yarn and an aluminum cup wrapped with 400D high-strength polyethylene HPPE on a spindle up and down, and enabling 100D glass fiber filament yarn and 0.05mm specification 304/316L steel yarn to pass through a yarn tension controller and a spindle hole to serve as yarn cores. High-strength nylon filament yarn (S direction, 800 twists) and high-strength polyethylene (Z direction, 300 twists) are used as outer yarn to be wound and coated. The cutting coated yarn for the high-strength nylon-coated glass fiber/steel yarn/HPPE glove is formed.

2. Adopts a common glove knitting machine, and adopts knitting weave and chinlon to wrap spandex yarn. A glove with a single glove weight of 30 grams was formed by weaving a U2 double layer structure.

3. Mixing water, butyronitrile and biodegradable additive, stirring at high speed for 60min, standing for 48min, and vulcanizing completely to obtain the usable butyronitrile rubber.

The water, the butyronitrile and the biodegradable additive are as follows according to parts by weight: 30 parts of water, 90 parts of butyronitrile and 1 part of biodegradable additive. The biodegradable additive is a composition composed of maleic anhydride modified polylactic acid (MPLA) and aldohexose in a mass ratio of 1: 1.

4. After the glove is sleeved on the hand mold, the hand mold is preheated to 60 ℃ and then dipped with glue, and the surface of the hand core is dipped with butyronitrile glue; 3g of mirabilite is evenly sprayed on the nitrile glue through the salt pond to form adhesion. Drying and vulcanizing at 90 ℃ preliminarily, washing with water, and soaking mirabilite attachments attached to the nitrile rubber. The mirabilite is thoroughly removed and dried at 85 ℃ for two hours. Obtaining the biodegradable high-strength nylon anti-cutting nitrile anti-slip gloves.

Example 5

A method of making a biodegradable glove, comprising the steps of:

1. the preparation method comprises the following steps of (1) enabling polyamide chips to enter a screw rod melt spinning zone, blending and adding a biodegradable additive into spinning fluid through an injector according to the proportion of 1.5%; POY fiber is prepared through a conventional spinning process, and then 200D/96F DTY fiber is obtained through a conventional DTY drafting and false twisting process. The fiber strength was 4.2cn/dtex, and the elongation at break was 19%. The biodegradable additive is a mixture of modified polylactic acid (BMPLA) based on maleic anhydride modified polylactic acid (MPLA) and butanediamine in a mass ratio of 1: 2.

And fixing an aluminum cup wrapped with 70D chinlon DTY filament yarn and an aluminum cup wrapped with 200D high-strength polyethylene HPPE on a spindle up and down, and enabling the tungsten yarn with the specification of 0.02mm to pass through a yarn tension controller and a spindle hole to serve as a yarn core. The nylon DTY filament yarn (S direction, 700 twist) and the high-strength polyethylene HPPE (Z direction, 300 twist) are used as the outer yarn to be wound and coated. The cutting and coating yarn for nylon DTY bag/HPPE/tungsten yarn gloves is prepared.

2. Adopts a common glove knitting machine, and adopts knitting weave and chinlon to wrap spandex yarn. A glove of 20 grams was formed by weaving a U2 double layer structure.

3. And (2) adding dimethylformamide and water as solvents into the polyurethane in a blending manner, simultaneously adding 2% of biodegradable additives into the polyurethane in a blending manner, stirring the mixture at a high speed for 30min, standing the mixture for 3h for defoaming, and preparing the rubber dipping material for later use. The water, the polyurethane, the dimethylformamide and the biodegradable additive are as follows according to parts by weight: 10 parts of water, 20 parts of polyurethane, 10 parts of dimethylformamide and 2 parts of biodegradable additive. The biodegradable additive is a composition consisting of maleic anhydride modified polylactic acid (MPLA), modified polylactic acid (BMPLA) of butanediamine and aldohexose 1:1: 1.

After the glove is sleeved on the hand mold, the hand mold is preheated to 40 ℃ and then dipped with glue, and the surface of the hand core is dipped with polyurethane glue. Turning over the hand mold to homogenize the glue, then putting the glue into a water tank, soaking the glue in flowing water for 1 hour, and diluting to remove the dimethylformamide so as to solidify and form the polyurethane. And drying in an oven at 80 ℃. The light, thin and comfortable biodegradable PU anti-skid gloves with high cutting resistance are obtained.

Comparative example 1

A method for making a glove, comprising the steps of:

1. POY fiber is prepared through a conventional spinning process, and then 200D/96F DTY fiber is obtained through a conventional DTY drafting and false twisting process.

And fixing an aluminum cup wrapped with 70D chinlon DTY filament yarn and an aluminum cup wrapped with 200D high-strength polyethylene HPPE on a spindle up and down, and enabling the tungsten yarn with the specification of 0.02mm to pass through a yarn tension controller and a spindle hole to serve as a yarn core. The nylon DTY filament yarn (S direction, 700 twist) and the high-strength polyethylene HPPE (Z direction, 300 twist) are used as the outer yarn to be wound and coated. The cutting and coating yarn for nylon DTY bag/HPPE/tungsten yarn gloves is prepared.

2. Adopts a common glove knitting machine, and adopts knitting weave and chinlon to wrap spandex yarn. A glove of 20 grams was formed by weaving a U2 double layer structure.

3. And (3) adding dimethylformamide and water into the polyurethane in a mixing manner, stirring at a high speed for 30min, standing for 3h for defoaming, and preparing the rubber-impregnated material for later use. The water, the polyurethane and the dimethylformamide comprise the following components in parts by weight: 10 parts of water, 20 parts of polyurethane and 10 parts of dimethylformamide.

After the glove is sleeved on the hand mold, the hand mold is preheated to 40 ℃ and then dipped with glue, and the surface of the hand core is dipped with polyurethane glue. Turning over the hand mold to homogenize the glue, then putting the glue into a water tank, soaking the glue in flowing water for 1 hour, and diluting to remove the dimethylformamide so as to solidify and form the polyurethane. And drying in an oven at 80 ℃. Obtaining the light, thin and comfortable PU anti-slip gloves with high anti-cutting performance.

Comparative example 2

A method of making a biodegradable glove, comprising the steps of:

1. POY fiber is prepared through a conventional spinning process, and then 200D/96F DTY fiber is obtained through a conventional DTY drafting and false twisting process.

And fixing an aluminum cup wrapped with 70D chinlon DTY filament yarn and an aluminum cup wrapped with 200D high-strength polyethylene HPPE on a spindle up and down, and enabling the tungsten yarn with the specification of 0.02mm to pass through a yarn tension controller and a spindle hole to serve as a yarn core. The nylon DTY filament yarn (S direction, 700 twist) and the high-strength polyethylene HPPE (Z direction, 300 twist) are used as the outer yarn to be wound and coated. The cutting and coating yarn for nylon DTY bag/HPPE/tungsten yarn gloves is prepared.

2. Adopts a common glove knitting machine, and adopts knitting weave and chinlon to wrap spandex yarn. A glove of 20 grams was formed by weaving a U2 double layer structure.

3. And (2) adding dimethylformamide and water as solvents into the polyurethane in a blending manner, simultaneously adding 2% of biodegradable additives into the polyurethane in a blending manner, stirring the mixture at a high speed for 30min, standing the mixture for 3h for defoaming, and preparing the rubber dipping material for later use. The water, the polyurethane, the dimethylformamide and the biodegradable additive are as follows according to parts by weight: 10 parts of water, 20 parts of polyurethane, 10 parts of dimethylformamide and 2 parts of biodegradable additive. The biodegradable additive is a composition consisting of maleic anhydride modified polylactic acid (MPLA), modified polylactic acid (BMPLA) of butanediamine and aldohexose 1:1: 1.

After the glove is sleeved on the hand mold, the hand mold is preheated to 40 ℃ and then dipped with glue, and the surface of the hand core is dipped with polyurethane glue. Turning over the hand mold to homogenize the glue, then putting the glue into a water tank, soaking the glue in flowing water for 1 hour, and diluting to remove the dimethylformamide so as to solidify and form the polyurethane. And drying in an oven at 80 ℃. The light, thin and comfortable biodegradable PU anti-skid gloves with high cutting resistance are obtained.

The biodegradable gloves prepared in examples 1 to 5 and comparative examples 1 to 2 were respectively subjected to a performance test in which abrasion resistance test standard used eu EN 388; the slip resistance was evaluated by putting 5 workers on gloves, gripping a stainless steel rod having a diameter of 30mm, and evaluating 1 to 5 points. The 5 th represents that the clamping force is very high, the 4 th represents that the clamping force is high, the 3 rd represents that the clamping force is slight, the 2 th represents that the sliding is not easy, and the 1 st represents that the clamping force is low; testing the degradable performance; the biodegradation rate is as follows: ISO: 14855.

the test results are given in the following table:

as can be seen from the above table, the biodegradable gloves prepared by the present invention not only maintain good slip resistance and abrasion resistance, but also have good biodegradability.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without departing from the spirit of the invention.