Method for modifying polyester fabric biologically

A polyester fabric, biological modification technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of high crystallinity and glass transition temperature, and the modification effect is not obvious, so as to increase hydrophilicity Sexuality, improvement of wearing comfort and aesthetics, and simple process

Inactive Publication Date: 2011-01-12
江苏东方阳光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the specificity of lipase, its modification effect on polyester fabrics is limited to the hydrolysis of ester bonds, coupled with the tight chemical structure of polyester, high crystallinity and glass transition temperature, the modification effect is not obvious
Within the scope of the applicant's search, related to the use of polyester monomers (diethyl terephthalate) containing ester bonds and benzene rings as inducing substrates to induce Comamonas testosteroni to produce complex enzymes such as lipase and oxidase The literature of modified polyester fabric has not been reported yet

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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  • Method for modifying polyester fabric biologically
  • Method for modifying polyester fabric biologically
  • Method for modifying polyester fabric biologically

Examples

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Effect test

preparation example Construction

[0016] 2. Preparation of bacterial suspension: According to the composition of the liquid medium, prepare a liquid medium with a substrate concentration of 1-3g / L, put it in a 500ml Erlenmeyer flask, wrap and sterilize it at 121°C for 25min, cool the slant The seeds in the solid medium are transferred into the liquid medium, and shake cultured at 30-37°C and the rotation speed of the shaking incubator is 200r / min, so that the bacteria grow for 12-36h, and the bacterial suspension in the logarithmic growth phase is obtained. liquid; the composition of the liquid medium is: potassium dihydrogen phosphate 3g / L, disodium hydrogen phosphate 7g / L, ammonium chloride 1g / L, sodium chloride 5g / L, magnesium sulfate 0.25g / L, substrate The dosage is 1-3g / L. If the substrate concentration in the liquid medium is too low, it cannot meet the needs of cell growth, but if it is too high, it will inhibit the cell growth and affect the effect of fabric modification instead. It is better to contro...

Embodiment 1

[0035] Using 3g / L DTP as the induction substrate, the polyester fabric was biomodified with unconcentrated Comamonas testosteroni.

[0036] Cultivate Comamonas testosteroni in a slant solid medium at 37°C for 18h, store it in a refrigerator at 4°C for later use; prepare 1 portion of liquid medium with a DTP concentration of 3g / L according to the composition of the liquid medium, 150ml, pack In a 500ml Erlenmeyer flask, wrap and sterilize at 121°C for 25 minutes. After cooling, transfer the seeds in the slant culture medium into it respectively, and vibrate and cultivate at 37°C and the speed of the shaking incubator at 200r / min to make the bacteria grow. 36h, which is the bacterial suspension in the logarithmic growth phase; put the polyester fabric in the aseptic operating table, sterilize it with ultraviolet light for 0.5h, add it to the bacterial suspension in the logarithmic growth phase, and place it at 37 ° C, the speed of the shaking incubator is Vibrating culture under...

Embodiment 2

[0042] Using 1g / L DTP as the induction substrate, the polyester fabric was biomodified with 2 times concentrated Comamonas testosteroni.

[0043] Cultivate Comamonas testosteroni in a slant solid medium at 30°C for 12 hours, and store it in a refrigerator at 4°C for later use; prepare 3 liquid mediums with a DTP concentration of 1g / L according to the composition of the liquid medium, each 150ml , respectively packed in 500ml Erlenmeyer flasks, wrapped and sterilized at 121°C for 25 minutes, after cooling, transfer the seeds in the slant culture medium to 2 portions of liquid culture medium respectively, at 30°C, the speed of the shaking incubator is 200r / min Under shaking culture, the thalline grows for 12h, which is the bacterial suspension in the logarithmic growth phase; after 2 parts of the bacterial suspension in the logarithmic phase are centrifuged (centrifuge speed 5000r / min, centrifugal 15min), collect the thalli; Add the obtained bacteria into the remaining 150ml of ...

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Abstract

The invention discloses a method for modifying a polyester fabric biologically. In the method, DTP is taken as an inducing substrate, comonas testosteroni is induced to produce lipase and oxidase, and the polyester fabric is modified by a complex enzyme. The method mainly comprises the following steps of: 1, culturing strains, namely culturing the comonas testosterone in a slope solid medium at the temperature of between 30 and 37 DEG C for 12 to 18 hours; 2, preparing bacterial suspension, namely preparing a liquid medium of which the substrate concentration is 1 to 3g / L, binding the liquid medium and sterilizing at the temperature of 121 DEG C for 25 minutes, after the liquid medium is cooled, transferring seeds in the slope solid medium to the liquid medium, and performing shaking culture at the temperature of between 30 and 37 DEG C for 12 to 36 hours under the condition that the rotating speed of a shaking incubator is 200r / min to obtain the bacterial suspension; 3, modifying the polyester fabric, namely after the polyester fabric is sterilized, adding the polyester fabric into the bacterial suspension, and performing shaking culture to produce the corresponding lipase and oxidase, and then modifying the polyester fabric by catalyzing; and 4, cleaning the polyester fabric to obtain the modified polyester fabric.

Description

technical field [0001] The invention relates to a surface modification treatment technology of textiles, in particular to a method for modifying polyester fabrics by using a single-cell bacteria capable of producing complex biological enzymes. Background technique [0002] Polyester (PET) fiber has good physical and mechanical properties and chemical stability, but as a clothing fiber, it has disadvantages such as poor air permeability, weak water absorption, easy to generate static electricity, poor dyeing performance, and dull feeling when wearing. In order to overcome the above-mentioned shortcomings of polyester fiber and make it have better hydrophilicity and antistatic properties, people modify polyester fiber. So far, many scholars and research institutions have carried out a lot of research work, and the applied methods can be classified into three categories: chemical modification, physical modification and biological modification. The commonly used chemical modifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00C12S11/00C12N1/20D06M101/32C12R1/01
Inventor 张健飞张卫玲巩继贤李政
Owner 江苏东方阳光科技有限公司
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