PLA cotton blended fabric

A cotton blending and fabric technology, applied in the field of textile fabrics, can solve problems such as poor alkali resistance and harsh dyeing process conditions, and achieve the effects of less fiber damage, safe and environmentally friendly treatment process, and low energy consumption

Inactive Publication Date: 2016-08-24
CHANGXING BAOSHENG TEXTILE TECH CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of polylactic acid / cotton blended fabrics is similar to that of polyester / cotton blended fabrics, but due to the poor alkali resistance of polylactic acid fibers, the dyes and dyeing process conditions used for dyeing dark colors and one-bath dyeing are relatively harsh, not all are suitable for polyester / cotton. Disperse dyes of blended fabrics are suitable for dyeing polylactic acid fiber / cotton blended fabrics
[0005] The present invention aims to provide a novel PLA cotton blended fabric and its preparation process, specifically relates to the dyeing and modification methods of PLA cotton blended fabrics, and has verified the optimal parameters of the process through a large number of experiments, and also uses bromelain in combination, Phytase and catechol oxidase treat PLA cotton blended fabrics, such a process has not been reported

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

[0025] A kind of novel PLA cotton blended fabric, it is prepared by following method:

[0026] (1) Preprocessing:

[0027] Select the blended fabric of polylactic acid / cotton (40 / 60), put it into the pretreatment solution, completely submerge it, and keep it at 45°C for 40 minutes;

[0028] The formula of the pretreatment liquid is: 0.2% citric acid, 0.8% trehalose, and the rest are pure water;

[0029] (2) Compound enzyme treatment:

[0030] After pretreatment, the polylactic acid / cotton blended fabric is dipped in compound enzyme;

[0031] Among them, the enzyme treatment process conditions are: bromelain 10U / mL, phytase 5U / mL, catechol oxidase 20 U / mL, pH 8, temperature 45°C, time 20min, liquor ratio 1:10;

[0032] (3) Acid dyeing: dyeing the polylactic acid / cotton blended fabric after the enzyme treatment in step (2) with an acid dye;

[0033] Among them, the prescription and conditions of the dye solution are: acid dye 3g / L, Yuanming powder 12g / L, Pingpingjia O / % (omf...

Embodiment 2

[0038] A kind of novel PLA cotton blended fabric, it is prepared by following method:

[0039] (1) Preprocessing:

[0040] Select the blended fabric of polylactic acid / cotton (40 / 60), put it into the pretreatment solution, completely submerge it, and keep it at 50°C for 30 minutes;

[0041] The formula of the pretreatment liquid is: 0.2% citric acid, 0.8% trehalose, and the rest are pure water;

[0042] (2) Compound enzyme treatment:

[0043] After pretreatment, the polylactic acid / cotton blended fabric is dipped in compound enzyme;

[0044] Among them, the enzyme treatment process conditions are: bromelain 10U / mL, phytase 5U / mL, catechol oxidase 25 U / mL, pH 8, temperature 38°C, time 30min, liquor ratio 1:10;

[0045] (3) Acid dyeing: dyeing the polylactic acid / cotton blended fabric after the enzyme treatment in step (2) with an acid dye;

[0046] Among them, the prescription and conditions of the dyeing solution are: acid dye 2g / L, sodium sulfate 12g / L, O / % (omf) 0.3%, pH...

Embodiment 3

[0051] A kind of novel PLA cotton blended fabric, it is prepared by following method:

[0052] (1) Preprocessing:

[0053] Select the blended fabric of polylactic acid / cotton (40 / 60), put it into the pretreatment solution, completely submerge it, and keep it at 46°C for 31 minutes;

[0054] The formula of the pretreatment liquid is: 0.2% citric acid, 0.8% trehalose, and the rest are pure water;

[0055] (2) Compound enzyme treatment:

[0056] After pretreatment, the polylactic acid / cotton blended fabric is dipped in compound enzyme;

[0057] Among them, the enzyme treatment process conditions are: bromelain 10U / mL, phytase 5U / mL, catechol oxidase 21 U / mL, pH 8, temperature 39°C, time 21min, liquor ratio 1:10;

[0058] (3) Acid dyeing: dyeing the polylactic acid / cotton blended fabric after the enzyme treatment in step (2) with an acid dye;

[0059] Among them, the prescription and conditions of the dyeing solution are: acid dye 3g / L, sodium sulfate 12g / L, O / % (omf) 0.3%, pH 4...

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
densityaaaaaaaaaa
melting pointaaaaaaaaaa
elongationaaaaaaaaaa
Login to view more

Abstract

The invention discloses a novel PLA cotton blended fabric. The novel PLA cotton blended fabric is prepared through the steps of 1 preprocessing; 2, complex enzyme processing, wherein after preprocessing is performed, the polylactic acid/cotton blended fabric is subjected to dip processing in a complex enzyme, and according to the enzyme processing technological conditions, bromelain, phytase and catechol oxidase mixed processing is adopted; 3, aicd dyeing, wherein the polylactic acid/cotton blended fabric obtained after enzyme processing is performed in the step 2 is subjected to dyeing processing through acid dyes, and according to the dye liquor formula and conditions, the concentration of the acid dyes is 2-3 g/L, the concentration of anhydrous sodium sulphate is 1-2 g/L, peregal O/%(omf) is 0.3%, pH is 4, the temperature is kept to be 50 DEG C, the temperature is increased to 70-80 DEG C after 10 min and kept constant for 60-70 min, and the bath ratio is 1:25; 4, processing performed after washing, wherein the polylactic acid/cotton blended fabric dyed in the step 3 is washed under the temperature of 60-80 DEG C for 5-20 min, and the bath ratio is 1:(5-30).

Description

technical field [0001] The invention relates to a PLA cotton blended fabric and a preparation process thereof, belonging to the field of textile fabrics. Background technique [0002] Polylactic acid (polylactic acid, referred to as PLA) fiber is a degradable new fiber material, which is a renewable new material jointly developed by Cargill (Cargill) and Du-Pont (DuPont) in the United States. Degradable food packaging materials. It can be made into polylactic acid resin slices through lactic acid dimerization and then ring-opening polymerization, which can be spun to prepare fibers, and can also be blended with petroleum-based plastics to prepare new degradable plastics. Making PLA fibers from polylactic acid resin by solvent method or by melt spinning has become the technical focus of competition in the field of polymer resin materials and textiles in the field of green environmental protection. Because there are industrial technical problems such as easy degradation and ...

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 Applications(China)
IPC IPC(8): D06P3/85D06P1/39D06P1/653D06P1/651D06P1/46D06P1/44D06M16/00D06M13/207D06M13/11D06M101/06D06M101/32
CPCD06P3/8228D06M13/11D06M13/207D06M16/003D06M2101/06D06M2101/32D06M2200/50D06P1/39D06P1/445D06P1/46D06P1/65118D06P1/6533
Inventor 韦信礼
Owner CHANGXING BAOSHENG TEXTILE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap