Production process of antibacterial wear-resistant warp-knitted fabric

Abstract

The invention discloses an antibacterial wear-resistant warp-knitted fabric production process which comprises the following steps: S1, preparation of graphene modified polyester master batches: preparing a mixture from graphene, copper oxide, isosorbide, 2-carboxyethyl phenyl hypophosphorous acid and an alkyl coupling agent, and performing melt blending on the mixture, tea polyphenol and polyester chips to prepare the graphene modified polyester master batches; s2, preparing modified polyester filaments: spinning the modified polyester filaments with cross-shaped sections from the graphene modified polyester master batches, waste oyster shell powder, cobalt naphthenate and polyester chips by melt direct spinning equipment; s3, preparing the modified polyester filament / real silk composite yarn; and S4, preparing the warp knitted fabric. The polyester fiber is modified by waste oyster shell powder, copper oxide and the like, so that the polyester fiber has good antistatic and antibacterial effects. And the cross section has moisture absorption and sweat releasing effects. And the used bio-based nylon 56 fiber filaments provide a good wear-resistant effect.

Description

Technical Field

[0001] The invention relates to a production process for antibacterial and wear-resistant warp knitted fabrics, belonging to the technical field of warp knitted fabric production processes. Background Art

[0002] As people's living standards improve, their requirements for clothing fabrics are getting higher and higher. They are not only limited to the conventional functions of fabrics, but also require good antibacterial effects and reduce the influence of external bacteria. Conventional antibacterial fabrics are prepared by impregnating the fabrics with antibacterial agents. The fabrics prepared by this method have poor antibacterial durability. Graphene is a single-layer carbon atom material peeled off from graphite. It is a single-layer two-dimensional honeycomb lattice structure composed of carbon atoms tightly stacked. It is the thinnest, hardest and most conductive material known to mankind. How to prepare an antibacterial and wear-resistant fabric has become a problem to be solved. Summary of the invention

[0003] The purpose of the present invention is to provide a production process of antibacterial and wear-resistant warp knitted fabrics, which can provide an antibacterial and wear-resistant warp knitted fabric.

[0004] To solve the above technical problems, the purpose of the present invention is achieved as follows:

[0005] The present invention relates to a production process for antibacterial and wear-resistant warp knitted fabrics, comprising the following steps:

[0006] S1. Preparation of graphene-modified polyester masterbatch: preparing a mixture of graphene, copper oxide, isosorbide, 2-carboxyethylphenylphosphite and an alkane coupling agent, and reacting the mixture at 100-120° C. for 0.5-2 hours, adding tea polyphenols, and melt-blending the mixture, tea polyphenols and polyester chips using a twin-screw melt blending method to obtain a graphene-modified polyester masterbatch;

[0007] S2. Preparation of modified polyester filaments: Graphene-modified polyester masterbatch, waste oyster shell powder, cobalt naphthenate, and polyester chips are spun through a melt direct spinning device to produce modified polyester filaments with a cross-shaped cross section;

[0008] S3, preparation of modified polyester filament / silk composite yarn: twisting the modified polyester filament prepared in the previous step with the silk fiber yarn;

[0009] S4, preparation of warp knitted fabric: the warp knitted fabric comprises a GB1 comb, a GB2 comb and a GB3 comb, the yarn used by the GB1 comb comprises a parallel twisted modified polyester filament / silk composite yarn; the GB2 comb uses bio-based nylon 56 filament; the GB3 comb uses elastic filament;

[0010] The inner layer of the warp knitted fabric is represented by the yarn used by the GB1 combing bar, and the outer layer is represented by the yarn used by the GB2 combing bar; the yarn used by the GB3 combing bar is used to connect the inner layer and the outer layer.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the yarn padding numbers of the GB1 combing bar are: 1-0 / 1-2 / 2-3 / 2-1 / / , the yarn padding numbers of the GB2 combing bar are: 0-0 / 2-2 / 4-4 / 2-2 / / , and the yarn padding numbers of the GB3 combing bar are: 2-3 / 2-1 / 1-0 / 1-2 / / .

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: in the step S1, the amount of the graphene is 5-10 parts by mass, the amount of the copper oxide is 3-5 parts by mass, the amount of isosorbide is 3-5 parts by mass, the amount of 2-carboxyethylphenylphosphite is 3-5 parts by mass, the amount of the alkane coupling agent is 5-10 parts by mass, the amount of tea polyphenols is 1-3 parts by mass, and the amount of the polyester chips is 30 parts by mass.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme: in the step S2, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 5-10 parts by mass, the amount of the waste oyster shell powder is 5-10 parts by mass, and the amount of the cobalt cyclopentaneate is 1-2 parts by mass.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: the elastic filaments are spandex filaments.

[0015] The beneficial effects of the present invention are as follows: the antibacterial and wear-resistant warp knitted fabric production process of the present invention uses graphene, waste oyster shell powder, copper oxide and other modified polyester fibers, so that the polyester fibers have good antistatic and antibacterial effects. The cross-section is cross-shaped and has a moisture absorption and perspiration effect. And the bio-based nylon 56 fiber filaments used provide good wear resistance. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with specific embodiments.

[0017] Embodiment 1

[0018] The present embodiment involves a production process of an antibacterial and wear-resistant warp knitted fabric, comprising the following steps:

[0019] S1. Preparation of graphene modified polyester masterbatch: prepare a mixture of graphene, copper oxide nanoparticles, isosorbide, 2-carboxyethylphenylphosphite and an alkane coupling agent, and react at 100-120° C. for 0.5-2 hours, then add tea polyphenols, and use a twin-screw melt blending method to melt-blend the mixture, tea polyphenols and polyester chips to obtain a graphene modified polyester masterbatch.

[0020] Further, in the step S1, the amount of the graphene is 5-10 parts by mass, the amount of the copper oxide is 3-5 parts by mass, the amount of the isosorbide is 3-5 parts by mass, the amount of the 2-carboxyethylphenylphosphite is 3-5 parts by mass, the amount of the alkane coupling agent is 5-10 parts by mass, the amount of the tea polyphenols is 1-3 parts by mass, and the amount of the polyester chips is 30 parts by mass. Specifically in this embodiment, the amount of the graphene is 10 parts by mass, the amount of the copper oxide is 5 parts by mass, the amount of the isosorbide is 3 parts by mass, the amount of the 2-carboxyethylphenylphosphite is 5 parts by mass, the amount of the alkane coupling agent is 5 parts by mass, the amount of the tea polyphenols is 3 parts by mass, and the amount of the polyester chips is 30 parts by mass.

[0021] S2. Preparation of modified polyester filaments: Graphene-modified polyester masterbatch, waste oyster shell powder, cobalt cyclopentaneate, and polyester chips are spun through a melt direct spinning device to produce modified polyester filaments with a cross-shaped cross section.

[0022] Further, in step S2, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 5-10 parts by mass, the amount of the waste oyster shell powder is 5-10 parts by mass, and the amount of the cobalt naphthenate is 1-2 parts by mass. Specifically in this embodiment, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 10 parts by mass, the amount of the waste oyster shell powder is 10 parts by mass, and the amount of the cobalt naphthenate is 1 part by mass. Oyster shells are formed by calcium carbonate secreted by the oysters themselves. The shell powder ground from them has low thermal conductivity and is not easy to absorb human body heat. Therefore, the fabric made from this yarn is very warm. Because oyster shell powder contains trace metal elements, it will generate positive charges during friction. When made into clothing, it can neutralize the static electricity carried by polyester and has antistatic properties. In addition, shell powder and polyester, both of which are inorganic substances, will not provide nutrients for bacterial growth, so the fabric made from sea wool yarn has a certain antibacterial effect.

[0023] S3, preparation of modified polyester filament / silk composite yarn: twisting the modified polyester filament prepared in the previous step with silk fiber yarn. The use of silk fiber can improve wearing comfort.

[0024] S4. Preparation of warp knitted fabric: The warp knitted fabric includes GB1 comb, GB2 comb and GB3 comb, the yarn used by the GB1 comb includes modified polyester filament / silk composite yarn twisted in parallel; the GB2 comb uses bio-based nylon 56 filament; the GB3 comb uses elastic filament; the elastic filament is spandex filament.

[0025] The inner layer of the warp knitted fabric is represented by the yarn used by the GB1 combing bar, and the outer layer is represented by the yarn used by the GB2 combing bar; the yarn used by the GB3 combing bar is used to connect the inner layer and the outer layer.

[0026] Furthermore, the yarn inlay numbers of the GB1 comb bar are: 1-0 / 1-2 / 2-3 / 2-1 / / , the yarn inlay numbers of the GB2 comb bar are: 0-0 / 2-2 / 4-4 / 2-2 / / , and the yarn inlay numbers of the GB3 comb bar are: 2-3 / 2-1 / 1-0 / 1-2 / / .

[0027] Embodiment 2

[0028] The present embodiment involves a production process of an antibacterial and wear-resistant warp knitted fabric, comprising the following steps:

[0029] S1. Preparation of graphene modified polyester masterbatch: prepare a mixture of graphene, copper oxide, isosorbide, 2-carboxyethylphenylphosphite and an alkane coupling agent, and react at 100-120° C. for 0.5-2 hours, then add tea polyphenols, and use a twin-screw melt blending method to melt-blend the mixture, tea polyphenols and polyester chips to obtain a graphene modified polyester masterbatch.

[0030] Further, in the step S1, the amount of the graphene is 5-10 parts by mass, the amount of the copper oxide is 3-5 parts by mass, the amount of the isosorbide is 3-5 parts by mass, the amount of the 2-carboxyethylphenylphosphite is 3-5 parts by mass, the amount of the alkane coupling agent is 5-10 parts by mass, the amount of the tea polyphenols is 1-3 parts by mass, and the amount of the polyester chips is 30 parts by mass. Specifically in this embodiment, the amount of the graphene is 5 parts by mass, the amount of the copper oxide is 3 parts by mass, the amount of the isosorbide is 5 parts by mass, the amount of the 2-carboxyethylphenylphosphite is 3 parts by mass, the amount of the alkane coupling agent is 10 parts by mass, the amount of the tea polyphenols is 1 part by mass, and the amount of the polyester chips is 30 parts by mass.

[0031] S2. Preparation of modified polyester filaments: Graphene-modified polyester masterbatch, waste oyster shell powder, cobalt cyclopentaneate, and polyester chips are spun through a melt direct spinning device to produce modified polyester filaments with a cross-shaped cross section.

[0032] Further, in step S2, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 5-10 parts by mass, the amount of the waste oyster shell powder is 5-10 parts by mass, and the amount of the cobalt naphthenate is 1-2 parts by mass. Specifically in this embodiment, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 5 parts by mass, the amount of the waste oyster shell powder is 5 parts by mass, and the amount of the cobalt naphthenate is 2 parts by mass. Oyster shells are formed by calcium carbonate secreted by the oysters themselves. The shell powder ground from them has low thermal conductivity and is not easy to absorb human body heat. Therefore, the fabric made from this yarn is very warm. Because oyster shell powder contains trace metal elements, it will generate positive charges during friction. When made into clothing, it can neutralize the static electricity carried by polyester and has antistatic properties. In addition, shell powder and polyester, both of which are inorganic substances, will not provide nutrients for bacterial growth, so the fabric made from sea wool yarn has a certain antibacterial effect.

[0033] S3, preparation of modified polyester filament / silk composite yarn: twisting the modified polyester filament prepared in the previous step with silk fiber yarn. The use of silk fiber can improve wearing comfort.

[0034] S4. Preparation of warp knitted fabric: The warp knitted fabric includes GB1 comb, GB2 comb and GB3 comb, the yarn used by the GB1 comb includes modified polyester filament / silk composite yarn twisted in parallel; the GB2 comb uses bio-based nylon 56 filament; the GB3 comb uses elastic filament; the elastic filament is spandex filament.

[0035] The inner layer of the warp knitted fabric is represented by the yarn used by the GB1 combing bar, and the outer layer is represented by the yarn used by the GB2 combing bar; the yarn used by the GB3 combing bar is used to connect the inner layer and the outer layer.

[0036] Furthermore, the yarn inlay numbers of the GB1 comb bar are: 1-0 / 1-2 / 2-3 / 2-1 / / , the yarn inlay numbers of the GB2 comb bar are: 0-0 / 2-2 / 4-4 / 2-2 / / , and the yarn inlay numbers of the GB3 comb bar are: 2-3 / 2-1 / 1-0 / 1-2 / / .

[0037] The antibacterial effect test of the fabrics prepared in Example 1 and Example 2 showed that the antibacterial rates against Escherichia coli were 93.6% and 96.2%, respectively, the antibacterial rates against Candida albicans were 91.3% and 90.7%, respectively, and the antibacterial rates against Staphylococcus aureus were 89.6% and 95.4%.

[0038] The warp knitted fabrics of Example 1 and Example 2 and the polyester warp knitted fabrics purchased on the conventional market were tested for wear resistance using ISO5981, and the test results are as follows: Example 1 and Example 2 show that the number of wear resistance of one side of the bio-based nylon 56 filament is more than 20,000 times, which can meet people's requirements for wear resistance.

[0039] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A production process for antibacterial and wear-resistant warp knitted fabrics, characterized in that: The steps include: S1. Preparation of graphene-modified polyester masterbatch: preparing a mixture of graphene, copper oxide, isosorbide, 2-carboxyethylphenylphosphite and an alkane coupling agent, and reacting the mixture at 100-120° C. for 0.5-2 hours, adding tea polyphenols, and melt-blending the mixture, tea polyphenols and polyester chips using a twin-screw melt blending method to obtain a graphene-modified polyester masterbatch; S2. Preparation of modified polyester filaments: Graphene-modified polyester masterbatch, waste oyster shell powder, cobalt naphthenate, and polyester chips are spun through a melt direct spinning device to produce modified polyester filaments with a cross-shaped cross section; S3, preparation of modified polyester filament / silk composite yarn: twisting the modified polyester filament prepared in the previous step with the silk fiber yarn; S4, preparation of warp knitted fabric: the warp knitted fabric comprises a GB1 comb, a GB2 comb and a GB3 comb, the yarn used by the GB1 comb comprises a parallel twisted modified polyester filament / silk composite yarn; the GB2 comb uses bio-based nylon 56 filament; the GB3 comb uses elastic filament; The inner layer of the warp knitted fabric is represented by the yarn used by the GB1 combing bar, and the outer layer is represented by the yarn used by the GB2 combing bar; the yarn used by the GB3 combing bar is used to connect the inner layer and the outer layer.

2. The production process of an antibacterial and wear-resistant warp knitted fabric according to claim 1, characterized in that: The inlay yarn numbers of the GB1 comb bar are: 1-0 / 1-2 / 2-3 / 2-1 / / , the inlay yarn numbers of the GB2 comb bar are: 0-0 / 2-2 / 4-4 / 2-2 / / , and the inlay yarn numbers of the GB3 comb bar are: 2-3 / 2-1 / 1-0 / 1-2 / / .

3. The production process of an antibacterial and wear-resistant warp knitted fabric according to claim 1, characterized in that: In the step S1, the amount of the graphene is 5-10 parts by mass, the amount of the copper oxide is 3-5 parts by mass, the amount of isosorbide is 3-5 parts by mass, the amount of 2-carboxyethylphenylphosphite is 3-5 parts by mass, the amount of the alkane coupling agent is 5-10 parts by mass, the amount of tea polyphenols is 1-3 parts by mass, and the amount of the polyester chips is 30 parts by mass.

4. The production process of an antibacterial and wear-resistant warp knitted fabric according to claim 1, characterized in that: In the step S2, the amount of the polyester chips is 100 parts by mass, the amount of the graphene-modified polyester masterbatch is 5-10 parts by mass, the amount of the waste oyster shell powder is 5-10 parts by mass, and the amount of the cobalt cyclopentaneate is 1-2 parts by mass.

5. The production process of an antibacterial and wear-resistant warp knitted fabric according to claim 1, characterized in that: The elastic filaments are spandex filaments.