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A kind of preparation method of bio-based PTT antibacterial fabric

An antibacterial fabric, bio-based technology, applied in textiles and papermaking, biochemical fiber treatment, fiber treatment and other directions, can solve the problems of cross-linking efficiency not reaching 100%, strong light sensitivity of nano-silver, waste of nano-silver, etc., to avoid Easy to change color, improve bonding fastness, avoid waste effect

Active Publication Date: 2021-09-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nano-silver used in the above-mentioned patent invention is highly sensitive to light, and it is prone to fabric discoloration during use, and the nano-silver has the disadvantages of slight toxicity and high cost.
In terms of technology, the above-mentioned invention patent is to prepare the β-cyclodextrin nano-silver antibacterial solution first, and then use the padding method to carry out antibacterial finishing on the fabric. During the baking process, the nano-silver is easy to cause the color change of the fabric.
In addition, since the cross-linking efficiency between cyclodextrin and fabric cannot reach 100%, in the process of padding antibacterial finishing solution, nano-silver is still coated in uncross-linked cyclodextrin, resulting in the waste of nano-silver

Method used

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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  • A kind of preparation method of bio-based PTT antibacterial fabric
  • A kind of preparation method of bio-based PTT antibacterial fabric
  • A kind of preparation method of bio-based PTT antibacterial fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037](1) Since the bio-based PTT material is a polyester material, the first step of the present invention utilizes an alkali reduction process to treat the fabric, and has carried out a comparative test of the cyclodextrin finishing effect of the alkali reduction pretreatment. The weight gain of the fabric with the same amount of weight and the fabric after the reduction of the weight are 7.8% and 11.8% respectively after cyclodextrin finishing, so the alkali weight reduction can improve the binding rate of the cyclodextrin finishing. The concentration of sodium hydroxide solution in the alkali reduction process is 30g / L, and the bath ratio is 1:60. Add the bio-based PTT fabric into the sodium hydroxide solution at 60°C, and raise the temperature to 90°C at a heating rate of 2°C / min, keep it warm for 60 minutes, and then wash the fabric in hot water at a temperature of about 80°C, and the washing time is 2min, and then wash with water at room temperature for 2min.

[0038] ...

Embodiment 2

[0042] According to embodiment 1, change metal sulfate solution into 7H of 10g / L in step (3) 2 O·ZnSO 4 Solution, fabric in 10g / L of 7H 2 O·ZnSO 4 In the solution, process 60min with 80 ℃, all the other are identical with embodiment 1, obtain Zn 2+ / β-CD / PTT fabric, Zn 2+ The adsorption capacity was 31.68 mg / g.

Embodiment 3

[0044] According to Example 1, the baking temperature in step (2) was changed to 120°C, and the baking time was changed to 3min, and the rest were the same as in Example 1. The wrinkle recovery angle of the obtained β-CD / PTT fabric was improved, and the average The value is 143.9°, that is, the memory is improved, and the hand feeling is better than that of Example 1, but the weight gain rate of the fabric drops to 10.2%. In practical applications, the baking temperature and baking time can be adjusted according to different needs.

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Abstract

The invention relates to a finishing method of a bio-based PTT antibacterial fabric. The method comprises: carrying out alkali reduction treatment on the bio-based PTT fabric; then adding it into the β-cyclodextrin finishing solution for finishing, taking out the fabric and washing it, then pre-baking, baking, and then adding it into the metal salt solution for in-situ finishing ,drying. The fabric finished by the method has excellent inhibitory effects on Gram-negative bacteria and Gram-positive bacteria.

Description

technical field [0001] The invention belongs to the field of functional finishing of fabrics, in particular to a finishing method of bio-based PTT antibacterial fabrics. Background technique [0002] Bio-based synthetic fiber refers to the fiber material obtained by using biomass as raw material, polymerizing monomers obtained through chemical transformation or biotransformation, and then synthesizing linear polymer compounds through addition polymerization or polycondensation reactions, and then spinning. Bio-based poly(trimethylene terephthalate) (PTT) fiber is prepared from 1,3-propanediol and terephthalic acid produced by microbial fermentation using glycerin, glucose or starch as raw materials, and prepared by melt spinning. into. Bio-based PTT fiber combines the softness of nylon, the bulkiness of acrylic fiber, the stain resistance of polyester and its inherent elasticity, and has attracted widespread attention. In order to increase its market added value, the devel...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/03D06M13/207D06M11/38D06M11/00D06M101/32
CPCD06M11/00D06M11/38D06M13/207D06M15/03D06M16/00D06M2101/32
Inventor 葛凤燕瞿凌曦蔡再生林瑶张韩芬
Owner DONGHUA UNIV