Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for pretreating cotton fabrics by adopting glucoamylase/glucose oxidase, pectinase and CBD (cellulose-binding domain)-lignin peroxidase

A technology of glucoamylase and glucose oxidase, which is applied in biochemical fiber treatment, fiber treatment, plant fiber, etc., can solve the problems of low fabric whiteness and low efficiency of hydrogen peroxide, and achieve high dye utilization rate, small fiber damage, Good dyeing quality

Inactive Publication Date: 2012-10-24
JIANGNAN UNIV +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Due to the treatment of glucoamylase and glucose oxidase, the pH value of the treatment bath is weakly acidic-neutral, and the temperature is also low, generally around 60°C. Under such conditions, the action efficiency of hydrogen peroxide is low, and the whiteness of the fabric is relatively low. Low

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Fabric type: J14.5tex×J14.5tex 133×72 cotton poplin

[0031] Mixed enzyme solution treatment consisting of glucoamylase and glucose oxidase: glucoamylase 1.5g / L, pH value 5.5, nonionic surfactant 2g / L, bath ratio 1:40. Treat at 40-45°C for 40min, then add glucose oxidase 2.0g / L, treat at 40-45°C for 30min, then raise the temperature to 90°C for 90min.

[0032] Alkaline pectinase solution treatment: alkaline pectinase 2.1g / L, 70°C, pH value 7.5, nonionic surfactant 2.3g / L, bath ratio 1:45, treatment for 50min.

[0033] CBD-lignin peroxidase solution treatment: CBD-lignin peroxidase 2.5g / L, pH value 3.5, anionic surfactant 2.5g / L, bath ratio 1:40, treatment 60min. Wash, tumble dry.

[0034] After the above process, the starch removal rate (desizing rate) on the cotton fabric is 98%, the pectin removal rate is 92%, the whiteness is 82, the strength is reduced by 2.3%, the weight loss rate is 1.7%, and the capillary effect is 8.3cm / 30min, no cottonseed husk on the cloth...

Embodiment 2

[0036] Fabric type: 19.5tex×19.5tex 75×72 cotton fine plain cloth

[0037] Mixed enzyme solution treatment consisting of glucoamylase and glucose oxidase: glucoamylase 2.5g / L, pH value 5.5, nonionic surfactant 2.8g / L, bath ratio 1:40. Treat at 40-45°C for 60min, then add glucose oxidase 3.0g / L, treat at 40-45°C for 50min, then raise the temperature to 90°C for 120min.

[0038] Alkaline pectinase solution treatment: Alkaline pectinase 3.6g / L, 70°C, pH 7.5, non-ionic surfactant 3.5g / L, bath ratio 1:45, treatment for 50min.

[0039] CBD-lignin peroxidase solution treatment: CBD-lignin peroxidase 5.0g / L, acid cellulase 2.0g / L, pH 4.5, anionic surfactant 3.5g / L, liquor ratio 1: 40 for 90 minutes. Wash, tumble dry.

[0040] After the above process, the starch removal rate (desizing rate) on the cotton fabric is 93%, the pectin removal rate is 90%, the whiteness is 78, the strength is reduced by 3.3%, the weight loss rate is 2.7%, and the capillary effect is 7.5cm / 30min, no cott...

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
Login to View More

PUM

PropertyMeasurementUnit
whitenessaaaaaaaaaa
whitenessaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for pretreating cotton fabrics by adopting glucoamylase / glucose oxidase, pectinase and CBD (cellulose-binding domain)-lignin peroxidase, belonging to the technical field of cotton fabric dyeing and finishing pretreatment. The method is characterized in that the cotton fabrics are firstly treated in mixed enzyme solution containing the glucoamylase and the glucose oxidase and the glucoamylase catalyzes the starch size on the fabrics to be decomposed into glucose so as to eliminate the size; the glucose oxidase catalyzes the glucose and oxygen to act to generate hydrogen peroxide; the generated hydrogen peroxide not only plays a role of bleaching but also can damage the hydrophobic surface structure of the cotton to expose the lower pectic substances; then the cotton fabrics are treated in alkaline pectinase solution to remove the pectic substances through decomposition; and finally the cotton fabrics are treated in CBD-lignin peroxidase solution to finally remove the cotton seed hulls through decomposing the lignin in the cotton seed hulls. The method provided by the invention can replace the traditional chemical treatment method to realize full bio-enzyme pretreatment of the cotton fabrics, and at the same time the traditional hydrogen peroxide can be no longer adopted for bleaching.

Description

technical field [0001] The invention discloses a cotton fabric pretreatment method with glucoamylase, glucose oxidase, pectinase and CBD-lignin peroxidase, which belongs to the technical field of pretreatment of cotton fabric dyeing and finishing. Background technique [0002] Cotton fabric has excellent wearability and is an important class of textiles. However, in the growth process of cotton fiber, there are a certain amount of substances that play a protective role, as well as substances generated in the process of biological metabolism and cellulose symbiosis, these cellulose symbiosis mainly include pectin substances, nitrogenous substances, waxes, etc. Like substances, natural pigments, etc., as well as cotton seed husks entrained when cotton fibers are stripped. These impurities are called natural impurities on cotton fabrics. In addition, before cotton fiber is spun into yarn and woven into fabric, it is necessary to put a layer of starch-based slurry on the warp ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06L1/14D06L3/02D06M16/00C12S11/00D06M101/06D06L4/13
Inventor 王强范雪荣章金芳徐华君余圆圆王平
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com