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Microcapsule technology-based cellulase and enzyme treatment process thereof on cotton fabric

A microcapsule technology and cellulase technology, which is applied in the field of cellulase and its enzymatic treatment process on cotton fabrics, can solve the problems of small binding force, etc., achieve improved adsorption capacity, good comprehensive performance, and omit the post-finishing process Effect

Active Publication Date: 2017-12-12
苏州凯邦生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known from the above-mentioned prior art that a good cellulase treatment effect can also be achieved by carrying out surface charge finishing on fabrics or cellulase to improve the binding force between cellulase and cotton fabrics, but simply relying on the interaction between charges Due to the effect of binding force, the binding force between cellulase and cotton fabric is still small, and the adsorption capacity of cellulase on fabric needs to be greatly increased, and further research is needed

Method used

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  • Microcapsule technology-based cellulase and enzyme treatment process thereof on cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add neutral cellulase to a phosphate buffer solution with a pH of 7 for extraction and dissolution, then add cationic guar gum solution and polyethylene glycol with a molecular weight of 1000, stir to make it evenly mixed, and form a pretreatment solution, wherein the content of neutral cellulase in the pretreatment solution is 5 mg / mL, the content of cationic guar gum is 0.5%, and the content of polyethylene glycol is 0.2%.

[0026] (2) Drop the pretreatment solution into a 10 mg / mL sodium tripolyphosphate aqueous solution through a pulse electric field generator, solidify in the sodium tripolyphosphate aqueous solution for 20 minutes, separate and sieve, and wash with water to obtain a carrier with a particle size of 8-15 μm. Microcapsules of neutral cellulase.

[0027] (3) After the surface of the cotton fabric is treated with alkali, the bath ratio is 1:40, and it is immersed in the aqueous solution of microcapsules loaded with neutral cellulase. The mass ratio...

Embodiment 2

[0030] (1) Add neutral cellulase to a phosphate buffer solution with a pH of 7.5 for extraction and dissolution, then add cationic guar gum solution and polyethylene glycol with a molecular weight of 1000, stir to make it evenly mixed, and form a pretreatment solution, wherein the content of neutral cellulase in the pretreatment solution is 10 mg / mL, the content of cationic guar gum is 1%, and the content of polyethylene glycol is 0.3%.

[0031] (2) Drop the pretreatment solution into a 10 mg / mL sodium tripolyphosphate aqueous solution through a pulse electric field generating device, solidify in the sodium tripolyphosphate aqueous solution for 30 minutes, separate, sieve, and wash with water to obtain a carrier with a particle size of 8-15 μm. Microcapsules of neutral cellulase.

[0032] (3) After the surface of the cotton fabric is treated with plasma activation, the bath ratio is 1:40, immersed in the aqueous solution of microcapsules loaded with neutral cellulase, accordin...

Embodiment 3

[0035] (1) Add neutral cellulase to a phosphate buffer solution with a pH of 7.2 for extraction and dissolution, then add cationic guar gum solution and polyethylene glycol with a molecular weight of 1000, stir to make it evenly mixed, and form a pretreatment solution, wherein the content of neutral cellulase in the pretreatment solution is 6 mg / mL, the content of cationic guar gum is 0.7%, and the content of polyethylene glycol is 0.25%.

[0036] (2) Drop the pretreatment solution into a 10 mg / mL sodium tripolyphosphate aqueous solution through a pulse electric field generating device, solidify in the sodium tripolyphosphate aqueous solution for 25 minutes, separate and sieve, and wash with water to obtain a carrier with a particle size of 8-15 μm. Microcapsules of neutral cellulase.

[0037](3) After the surface of the cotton fabric is treated with alkali or plasma activation, the bath ratio is 1:40, immersed in the aqueous solution of microcapsules loaded with neutral cellu...

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Abstract

The invention provides microcapsule technology-based cellulase and an enzyme treatment process thereof on cotton fabric. The particular process comprises the following steps: adding neutral cellulase into a phosphate buffer solution to perform extraction and dissolution, adding a cationic guar gum solution and polyethylene glycol, and stirring to form a pretreatment solution; dropwise adding the pretreatment solution into a sodium tripolyphosphate aqueous solution through a pulse electric field generation device, solidifying, separating and sieving, and washing with water to obtain microcapsules loaded with the neutral cellulase; performing surface activation treatment on the cotton fabric, dipping the cotton fabric into the microcapsule aqueous solution loaded with the neutral cellulase, dropwise adding dimethylol dihydroxy-ethylene urea, mixing uniformly, adding a citric acid catalyst, performing heating oscillation to obtain enzyme treated cotton fabric, rapidly taking out the cotton fabric, performing centrifugal dehydration, drying and tentering to obtain the cotton fabric finished product attached with the microcapsules loaded with the neutral cellulase. The wall material of the prepared cellulase and the fabric are combined by a hydrogen key and crosslinking mode, the enzyme adsorption quantity is high, and the prepared cotton fabric is smooth and soft and has high heat tolerance.

Description

technical field [0001] The invention belongs to the technical field of cellulase enzyme treatment, and in particular relates to a cellulase based on microcapsule technology and its enzyme treatment process on cotton fabric. Background technique [0002] Cellulase is a general term for a group of enzymes that hydrolyze cellulose and generate glucose. Cellulase is divided into endo-β-glucanase, exo-β-glucanase and β-glucosidase according to their properties. . Cellulase is usually used in the textile field to degrade cellulose. First, endo-β-glucanase acts on many terminals exposed in the amorphous region of microfibers to form cellobiose, and then β-glucose Glucosidase is used to decompose glucose. Usually, the application of cellulase in fabrics mostly only exists in the first stage. It only needs to destroy the hydrogen bonds between cellulose molecules, loose the structure of fiber bundles or partially degrade cellulose molecules to achieve denim. For distressing or text...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/10C12N11/08D06M16/00
CPCC12N9/2437C12N11/08C12N11/10D06M16/003D06M2101/06D06M2200/50
Inventor 冯海燕
Owner 苏州凯邦生物技术有限公司
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