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Antibacterial fiber, wet and dry antibacterial non-woven fabric and preparation method

A technology of antibacterial fibers and composite fibers, applied in the field of dry and wet antibacterial non-woven fabrics and their preparation, and the field of antibacterial fibers, can solve the problem of low stability of disinfection effect and achieve good water absorption.

Pending Publication Date: 2022-07-29
苏州美纳福健康科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the method for producing antibacterial disinfectant by electrolysis mainly includes a hypochlorous acid electrolysis water device, and a typical technology has a high-concentration slightly acidic hypochlorous acid electrolysis water device and a production method provided by the Chinese invention patent CN112777692A, which is characterized by excellent safety. Compared with conventional high-concentration hypochlorous acid disinfectants, hypochlorous acid is still used as the disinfection substance in the end, and a unique electrolysis device is required to produce hypochlorous acid water. In addition, the stability of the disinfection effect is not high, and it is generally stored for 3 months. decline

Method used

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  • Antibacterial fiber, wet and dry antibacterial non-woven fabric and preparation method
  • Antibacterial fiber, wet and dry antibacterial non-woven fabric and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preparation of hydroxyl-containing nano-ZnO

[0028] The commercially available zinc oxide with a particle size of 20-30 nm is mixed and ground with polyvinylpyrrolidone, polyethylene glycol, and glycerol in a mass ratio of 1:0.1:0.5:0.1 to prepare hydroxyl-containing nano-zinc oxide.

[0029] 2. Preparation of ES skin-core composite fibers

[0030] The modified PE material was prepared by adding 0.03% of the hydroxyl-containing nano-zinc oxide into the PE material in the slice modification device. As the subsequent skin layer, 0.03% of the hydroxyl-containing nano-zinc oxide was added to the slice modification device. The modified PET material is obtained by adding it to the PET material, which is used as the subsequent core layer; in the composite fiber preparation device, the above-mentioned skin layer and core layer materials are respectively added to the spinning melt pipe at a mass ratio of 1:1. Twin-screw extrusion, and then ejected through a composite spinne...

Embodiment 2

[0033] The ES skin-core composite fiber prepared in Example 1 was prepared by the hot-air non-woven fabric processing technology to obtain ES hot-air non-woven fabric.

[0034] Take the hot air non-woven fabric and soak it in deionized water at a mass ratio of 1:30 for 24 hours. After testing, there are no other chemical substances in the water. At the same time, the water also has an efficient antibacterial effect.

[0035] The antibacterial effects of the non-woven samples prepared in this example and the water after soaking were tested, and the results are shown in Table 1.

[0036] Table 1:

[0037] .

[0038] After the ES composite fiber non-woven fabric provided in this example is soaked in deionized water, the results of the metal dissolution test in the soaking water are shown in Table 2.

[0039] Table 2:

[0040] .

[0041] The test results in Table 1 show that the antibacterial rate of Staphylococcus aureus is 99%, the antibacterial rate of Escherichia coli ...

Embodiment 3

[0046] First prepare hydroxyl-containing nano-copper oxide, mix and grind commercially available 20-30 nm copper oxide with polyvinylpyrrolidone, polyethylene glycol, and glycerol in a mass ratio of 1:0.1:0.4:0.2 to prepare hydroxyl-containing Nano copper oxide.

[0047] 0.03% nanometer copper oxide is added to PE material in the slice modification device to obtain the skin layer PE material, and 0.03% nanometer zinc oxide is added to the PET material in the slice modification device to obtain the modified PET core layer material; In the preparation of composite fibers, the above-mentioned skin layer and core layer materials are respectively added into the spinning melt pipe, extruded through twin-screw, and then ejected through the composite spinneret assembly, cooled, formed, wound, stretched, crimped and shaped, and finally ES was obtained. Skin-core composite fiber, ES hot-rolled non-woven fabric was prepared by hot-rolled non-woven fabric processing technology. The test r...

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Abstract

The invention discloses an antibacterial fiber, a wet and dry antibacterial non-woven fabric and a preparation method. The preparation method comprises the following steps: respectively doping hydroxyl-containing nano-metal oxide into polyethylene and polyethylene glycol terephthalate according to the mass percent of 0.01-0.1% to obtain a skin layer raw material and a core layer raw material, adding the raw materials into a melt double pipeline of a spinning machine, extruding through double screws, spraying through a composite spinning assembly, cooling, forming, winding, stretching, curling and shaping to obtain the polyethylene / core layer composite material. The ES sheath-core heterojunction composite fiber is obtained; and then a hot air or hot rolling process is adopted to obtain the wet and dry dual-purpose antibacterial non-woven fabric. The composite fiber provided by the invention has a skin-core micro electric field interface, antibacterial active factors are generated by utilizing an interface micro electric field effect and electrolyzing water in an environment, a rapid and efficient sterilization effect is achieved, meanwhile, liquid also has an efficient sterilization effect after the composite fiber is soaked in water, no chemical substances are separated out from the water, and the composite fiber is safe, environment-friendly and energy-saving; the method is suitable for skin contact layers of dry and wet disposable hygienic products.

Description

technical field [0001] The invention relates to an antibacterial fiber, a dry-wet dual-purpose antibacterial non-woven fabric and a preparation method thereof, which utilize an interface micro-electric field to produce an antibacterial effect. Background technique [0002] In recent years, with the advancement of science and technology and the improvement of people's living standards, people's awareness of health care and safety has been increasing, and diseases caused by harmful microorganisms in the environment are relatively common. Antibacterial materials and antibacterial equipment have become the research hotspots of researchers. [0003] The research on antibacterial materials should consider its own safety, production cost and convenience of use while considering the antibacterial effect. Generally speaking, antibacterial agents are divided into three categories: natural antibacterial agents, organic antibacterial agents and inorganic antibacterial agents. The adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F8/14D01F1/10D01D5/34D04H1/485D04H1/541
CPCD01F8/06D01F8/14D01F1/103D01D5/34D04H1/485D04H1/5412
Inventor 郑敏王作山郑蜜
Owner 苏州美纳福健康科技有限公司
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