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A kind of preparation method of PLA fiber fabric containing coffee carbon

A production method, the technology of coffee carbon, applied in the direction of fiber chemical characteristics, dyeing method, rayon manufacturing, etc., can solve the problems of low dyeing rate, poor color fastness, scratches and fluffing, etc., and achieve the improvement of dyeing rate and production Reduced cost and energy consumption, and increased wrinkle recovery angle

Active Publication Date: 2021-02-26
咖法科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the international and domestic textile industries basically apply it to simple knitwear such as underwear, round-neck shirts, T-shirts, socks, etc., and there are few studies on clothing fabrics with complex structures containing coffee carbon, especially those containing coffee. Carbon fiber fabrics have many problems such as low dyeing rate, scratches, fuzzing, and poor color fastness, which limit their application in the textile field.

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 PLA fiber fabric containing coffee carbon
  • A kind of preparation method of PLA fiber fabric containing coffee carbon
  • A kind of preparation method of PLA fiber fabric containing coffee carbon

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Embodiment approach

[0031]In one embodiment of the present invention, the viscosity-average molecular weight of poly-L-lactic acid is 45-350kDa, wherein the molar content of L optical isomer is 97.5-99.9%; the viscosity-average molecular weight of poly-D-lactic acid is 15-80kDa, wherein D The molar content of optical isomers is 97.5-99.9%. Preferably, the viscosity-average molecular weight of PLLA is 80-230 kDa, and the viscosity-average molecular weight of PDLA is 45-65 kDa. More preferably, the viscosity-average molecular weight of PLLA is 100-180 kDa, and the viscosity-average molecular weight of PDLA is 50-60 kDa. The addition of poly-D-lactic acid can make the left-handed and right-handed structures complementary, make the molecular chains tightly packed, strengthen the intermolecular force, improve the heat resistance and high-temperature stability of poly-lactic acid, and avoid high-temperature drying or spinning. The hydrolysis reaction and degradation reaction of polylactic acid further...

Embodiment 1

[0051] A kind of preparation method of the PLA fiber containing coffee carbon, comprises the following steps:

[0052] (1) According to the weight ratio of 1:0.1, poly-L-lactic acid and poly-D-lactic acid are mixed to form polylactic acid raw material slices, and then dried at 95°C for 8 hours, and the final water content can be controlled at ≤50ppm. The viscosity average of the above-mentioned PLLA The molecular weight is 130kDa, wherein the molar content of L optical isomer is 98.9%, the viscosity average molecular weight of PDLA is 55kDa, wherein the molar content of D optical isomer is 99.1%;

[0053] (2) Add 0.15 parts by weight of plasticizer to 68 parts by weight of polylactic acid slices, stir evenly and pulverize into powder, then add 18 parts by weight of coffee carbon nano powder and 0.5 parts by weight of antioxidant 1010 After mixing evenly, melt and granulate at 170-250°C to obtain coffee carbon polylactic acid masterbatch. The above-mentioned toughening agent is...

Embodiment 2

[0056] A method for making a PLA fiber fabric containing coffee carbon, the concrete steps are as follows:

[0057] (1) Spinning: get the fiber spinning made in Example 1, the yarn is the twisted silk of PLA fiber containing coffee carbon, and its specification is 100D / 45F-180D / 75F;

[0058] (2) Pre-treatment: Put the yarn in the dyeing tank, enter water, first add the penetrant sodium alkyl succinate sulfonate in an amount of 0.15g / L, react for 30min, and then use 5g / L and 6.5g respectively Add soda ash and sodium silicate in an amount of / L, then raise the temperature to 75°C, add hydrogen peroxide in an amount of 5g / L and keep it warm for 10 minutes, then raise the temperature to 90°C, keep it warm for 35 minutes, cool down, and wash with water;

[0059] (3) Dyeing: enter water according to the bath ratio of 1:33, then add leveling agent triethanolamine, dyes and salt at 40°C, raise the temperature to 105°C at a heating rate of 1.5°C / min, keep it warm for 45min, add soda as...

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Abstract

The invention provides a method for making a PLA fiber fabric containing coffee carbon, which belongs to the field of textile technology, comprising: spinning-pretreatment-dyeing-weaving-finishing-setting; the fiber raw material for spinning is obtained by the following method: providing Polylactic acid chips including poly-L-lactic acid and poly-d-lactic acid, providing coffee carbon polylactic acid masterbatches including tougheners and antioxidants, and taking masterbatches and polylactic acid chips for melt spinning, heat drawing and heat setting Finally, the PLA fiber containing coffee carbon was prepared. The fiber production method in the present invention can improve its heat resistance and high temperature stability, increase tensile strength and elongation at break, and improve the resilience and wrinkle resistance of fibers and fabrics by increasing the wrinkle recovery angle; the fabric production method can improve fiber Dye uptake rate and dye uptake rate, improve dyeing and washing fastness, increase color durability and shape retention of fibers and fabrics, shorten dyeing process time, and significantly reduce production costs and energy consumption.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a method for making a PLA fiber fabric containing coffee carbon. Background technique [0002] With the improvement of people's living standards and the acceleration of work rhythm, the requirements for the protective function of clothing are getting higher and higher. The textile industry's attention to green and environmentally friendly products has gradually become the standard for new product development. Textiles with a single function can no longer meet people's needs, and textiles with multi-functional finishing are getting more and more attention and love because of their excellent performance. . [0003] Polylactic acid fiber (PLA fiber) is made from lactic acid fermented from renewable natural substances such as corn, potato, and sugar beet, and then polymerized and spun. It is fully biodegradable and recyclable. Polylactic acid fabric also has excellent...

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): D01F8/14D01F1/10D01F6/92D06P1/00D06P1/44D06P1/62D06P1/651D06P1/673D06P3/82D06P5/10
CPCD01F1/10D01F1/103D01F6/92D01F8/14D06P1/0032D06P1/445D06P1/623D06P1/65118D06P1/65125D06P1/673D06P1/6735D06P1/67383D06P3/8276D06P5/10
Inventor 江祺全李云子俞健
Owner 咖法科技(上海)有限公司
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