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Multi-component antibacterial non-woven fabric

A non-woven fabric, multi-component technology, applied in the direction of non-woven fabrics, textiles and papermaking, conjugated synthetic polymer artificial filaments, etc., can solve the problems of limited application range, large amount of waste water, poor washing resistance of fabrics, etc. , to enhance the bactericidal effect and increase the contact area

Active Publication Date: 2012-09-19
HUBEI SANYANG NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the fibers of the prepared antibacterial nonwovens are arranged in one direction, and the bidirectional mechanical properties are not good, which limits its application range.
Its shortcoming is that it uses the method of post-finishing, and the process is complicated, the waste water generated in the preparation process is much, and the appearance and comfort of the fabric are not good.
Its disadvantage is that the antibacterial agent is coated on the surface of the fabric by physical methods, and the antibacterial agent and the fabric are not connected by covalent bonds.
The fabric is not durable to washing
[0007] In the above-mentioned technologies, the preparation of antibacterial nonwovens has a greater impact on the appearance of the fabric, a certain impact on the physical and mechanical properties of the fabric, and a certain impact on the post-dyeing and finishing of the fabric.

Method used

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  • Multi-component antibacterial non-woven fabric
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  • Multi-component antibacterial non-woven fabric

Examples

Experimental program
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Effect test

preparation example Construction

[0030] The preparation process steps of a multi-component antibacterial non-woven fabric are as follows:

[0031] 1 Preparation of modified polyamide and modified polyester

[0032] Mix polyamide, monomers containing double bonds and amine structures, and free radical initiator amine in a mass ratio of 100:1 to 10:0.1 to 0.4, dry for 2 hours, then mix evenly, and prepare by twin-screw reactive extrusion .

[0033] The modified polyamide is prepared by mixing polyamide, functional monomer containing amine structure, and free radical initiator at a mass ratio of 100:1-10:0.1-0.4, and then extruding through twin-screw reaction.

[0034] The melting point range of the polyamide is between 210°C and 270°C.

[0035] The functional monomers containing double bonds and amine structures are acrylamide (AAM), acrylamide (MAM), N-tert-butylacrylamide (NTBA), 2,4-diamino-6-diallyl Amino-1,3,5-triazine (NDAM) or 3-allyl-5,5-dimethylhydantoin (ADMH), 3-(4-vinylbenzyl)-hydantoin (VBDMH) ...

Embodiment 1

[0056] 1000 kg of polyethylene terephthalate (PET), 10 kg of AAM, and 1 kg of DCP were dried for 2 hours, then mixed uniformly, and nitrogen was introduced into the container of the screw extruder for 5 minutes to remove oxygen. The mixed material is put into the hopper of the twin-screw extruder, extruded through melting reaction, and granulated into antibacterial particles. Among them, the temperature settings of each heating zone of the twin-screw extruder are: zone 1 temperature: 230°C; zone 2: 240°C; zone 3: 250°C; zone 4: 245°C; zone 5: 245°C; zone 6: 250; Zone 7: 250°C; machine head: 260°C; residence time: 2-3 minutes. The pressure is 15MPa. Modified PET chips.

[0057] Dry 1000 kg of polyhexamethylenediamine adipic acid (PA66), 10 kg of AAM, and 1 kg of DTBHY for 2 hours, then mix evenly, and blow nitrogen into the container of the screw extruder for 5 minutes to remove oxygen. The mixed material is put into the hopper of the twin-screw extruder, extruded through me...

Embodiment 2

[0061] 1000 kg of polyethylene terephthalate (PET), 100 kg of MAM, and 4 kg of DCP were dried for 2 hours, then mixed uniformly, and nitrogen was introduced into the container of the screw extruder for 5 minutes to remove oxygen. The mixed material is put into the hopper of the twin-screw extruder, extruded through melting reaction, and granulated into antibacterial particles. Among them, the temperature settings of each heating zone of the screw are: Zone 1: 230°C; Zone 2: 240°C; Zone 3: 250°C; Zone 4: 245°C; Zone 5: 245°C; Zone 6: 250; Zone 7: 250°C ; Head: 260 ° C; residence time 2 ~ 3min. The pressure is 15MPa. Obtain modified PET slices.

[0062] Dry 1000 kg of polyhexamethylenediamine adipic acid (PA66), 100 kg of MAM, and 4 kg of DCP for 2 hours, then mix well, and feed nitrogen into the container of the screw extruder for 5 minutes to remove oxygen. The mixed material is put into the hopper of the twin-screw extruder, extruded through melting reaction, and granulate...

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Abstract

The invention discloses a multi-component antibacterial non-woven fabric. The antibacterial non-woven fabric is formed by mixing 80%-20% by mass of modified polyamide and 20%-80% by mass of modified polyester, and preparing and molding through a spunbond spunlace process; and the surface of non-woven fabric fibre member is provided with a chloramine structure connected by covalent bond. The multi-component antibacterial non-woven fabric disclosed by the invention has the characteristics of strong sterilizing effect, ultrafine fibre, comfortable touch feeling and good mechanical property, and overcomes the defects of a post-treatment method using a finishing agent during traditional preparation of the antibacterial fabric; and the non-woven fabric disclosed by the invention is subjected to simple chloration so as to recycle the sterilizing effect of the non-woven fabric.

Description

technical field [0001] The invention relates to a multi-component antibacterial nonwoven fabric. It belongs to the field of textile technology. Background technique [0002] Multi-component ultra-fine fiber non-woven fabric refers to the ultra-fine fibers with multiple components regularly arranged in a monofilament. Generally, multi-components are extruded and melted by multiple screws, and spun at the same time to form sea islands. Type, skin-core or peel-off fabrics, according to the difference in the heat and moisture shrinkage of the multi-components, are treated with chemical or mechanical fiber opening to form non-woven fabrics with ultra-fine fibers. The fiber diameter is generally below 4 μm, only 1 / 10 of real silk, and the specific surface area is several to dozens of times that of conventional fibers. [0003] At present, domestic antibacterial non-woven fabrics are mainly produced in two ways: (1) directly using antibacterial fibers to make fabrics; (2) post-pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H3/009D04H3/10D01F8/10C08F283/04C08F283/02
Inventor 王栋孙刚赵青华徐卫林刘欣
Owner HUBEI SANYANG NEW TECH CO LTD
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