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Production method of polylactic acid carpet

A production method and polylactic acid technology, applied in the field of polylactic acid, can solve the problems of difficult handling of carpets, poor resilience, environmental pollution, etc., and achieve the effects of excellent flame retardancy, excellent resilience and drape, and a simple production method.

Inactive Publication Date: 2019-06-28
LONGFU RECYCLING ENERGY SCIENTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the current carpets are made of polyester, nylon, polypropylene and other materials. The waste of carpets is difficult to deal with, causing environmental pollution and poor resilience.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of production method of polylactic acid carpet that the present invention proposes, comprises the following steps:

[0021] S1, preparation of polylactic acid fiber: After crushing corn husks, extract starch from it, then make starch into unrefined glucose, ferment glucose to form lactic acid, concentrate lactic acid to form lactide, and lactide monomer undergoes After vacuum purification, the ring-opening action is performed to polymerize the monomer into polylactic acid. Polylactic acid with a molecular weight of 330,000 is used for real drying first, and then melt-spun to obtain polylactic acid fibers;

[0022] S2, preparation of the carpet base fabric: put the spinning polylactic acid fiber into the plying machine for plying and shaping, and put the polylactic acid spinning after plying and setting on the tufting loom for weaving, finally forming the polylactic acid carpet base fabric, The weight of the formed polylactic acid base cloth is 1000g / ㎡-1300g / ㎡;

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Embodiment 2

[0028] A kind of production method of polylactic acid carpet that the present invention proposes, comprises the following steps:

[0029] S1, preparation of polylactic acid fiber: After crushing corn husks, extract starch from it, then make starch into unrefined glucose, ferment glucose to form lactic acid, concentrate lactic acid to form lactide, and lactide monomer undergoes After vacuum purification, the ring-opening action is performed to polymerize the monomer into polylactic acid. Polylactic acid with a molecular weight of 330,000 is used for real drying first, and then melt-spun to obtain polylactic acid fibers;

[0030] S2, preparation of the carpet base fabric: put the spinning polylactic acid fiber into the plying machine for plying and shaping, and put the polylactic acid spinning after plying and setting on the tufting loom for weaving, finally forming the polylactic acid carpet base fabric, The weight of the formed polylactic acid base cloth is 1000g / ㎡-1300g / ㎡;

...

Embodiment 3

[0036] A kind of production method of polylactic acid carpet that the present invention proposes, comprises the following steps:

[0037] S1, preparation of polylactic acid fiber: After crushing corn husks, extract starch from it, then make starch into unrefined glucose, ferment glucose to form lactic acid, concentrate lactic acid to form lactide, and lactide monomer undergoes After vacuum purification, the ring-opening action is performed to polymerize the monomer into polylactic acid. Polylactic acid with a molecular weight of 330,000 is used for real drying first, and then melt-spun to obtain polylactic acid fibers;

[0038] S2, preparation of the carpet base fabric: put the spinning polylactic acid fiber into the plying machine for plying and shaping, and put the polylactic acid spinning after plying and setting on the tufting loom for weaving, finally forming the polylactic acid carpet base fabric, The weight of the formed polylactic acid base cloth is 1000g / ㎡-1300g / ㎡;

...

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PUM

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Abstract

The invention discloses a production method of a polylactic acid carpet. The method comprises the following steps of S1, preparation of a polylactic acid fiber, wherein after corn-husk crops are ground, starch is extracted from the crops and then prepared into non-refined glucose, the glucose is fermented into lactic acid, the lactic acid is concentrated into lactide, a lactide monomer is subjected to vacuum purification and then subjected to loop opening operation, so that the monomer is polymerized into polylactic acid, by adopting the polylactic acid with molecular weight of 330,000, firstly, vacuum drying is conducted, then melting spinning is conducted, and a polylactic acid fiber can be obtained; S2, preparation of a carpet base fabric, wherein spun yarn formed by the polylactic acidfiber is put into a stranding machine for stranding and sizing, the polylactic acid spun yarn after stranding and sizing is put on a tufting weaving machine for weaving, and finally the polylactic acid carpet base fabric is formed; S3, printing; S4, color fixation and drying; S5, washing with water and reduction; S6, winding of a finished product. The production method is simple, the material isdegradable, and a rebound effect is good.

Description

technical field [0001] The invention relates to the technical field of polylactic acid, in particular to a production method of a polylactic acid carpet. Background technique [0002] Lactic acid is a widely existing strong organic acid. A single lactic acid molecule contains a hydroxyl-OH and a carboxyl-COOH. Multiple lactic acid molecules are dehydrated and polycondensed to form a hand-in-hand polymer. lactic acid. The polycondensation process is an esterification reaction, and polylactic acid is a member of the polyester family. [0003] The polymerized monomer lactic acid of polylactic acid has sufficient sources and can be regenerated, and the production process is pollution-free. After consumption and use, polylactic acid products can be fully degraded to generate harmless carbon dioxide and water, which are converted into starch-containing products through photosynthesis of plants. Agricultural products, in line with the trend of sustainable development, polylactic ...

Claims

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Application Information

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IPC IPC(8): D05C17/02C08G63/08D01F6/62D06P1/16D06P3/54D06P5/20D06P5/02A47G27/02
Inventor 段建国冯希泉郭利王建波赵洪波罗国梁
Owner LONGFU RECYCLING ENERGY SCIENTECH
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