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Biological modification process of lactic acid fibers with good spinnability

A technology of lactic acid fiber and biomodification, applied in the direction of fiber type, fiber treatment, biochemical fiber treatment, etc., can solve the problems such as polylactic acid fiber is not easy to dye, the influence of special-shaped PLA fiber spinnability, etc., to achieve spinnability Good, good hygroscopicity, good performance effect

Active Publication Date: 2016-01-20
浙江逸蓓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these technologies have not solved the shortcomings of polylactic acid fibers that are not easily dyed, and the spinnability of shaped PLA fibers will be affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A biological modification method of a good texture of lactic acid fiber, the steps are as follows:

[0029] (1) Material material according to the following weights, and then add dispersion evenly in a high -speed hybrid machine to get modified polymapilic acid mixed raw materials:

[0030] 72 parts of PLA polystumin;

[0031] 3 parts of hydroxydium starch;

[0032] 2 parts of two acetate cellulose;

[0033] Yunmu powder 1.6 copies;

[0034] (2) Uniformly mixed modified polymapilic acid mixed raw materials squeezed out the melting mixing through the double screw out, the extrusion system is used to modify the maternity of the polymapilic acid, and the vacuum is dry;

[0035] (3) 30 copies of maternal pipe slices of modifiers and 80 copies of the vacuum drying ordinary polystumin slices are put into a high -speed mixer mixing uniformly.Lactic acid fiber;

[0036] The spinning temperature is 210 ° C, the wound speed is 1800m / min; the extension temperature is 80 ° C, and the e...

Embodiment 2

[0043] A biological modification method of a good texture of lactic acid fiber, the steps are as follows:

[0044] (1) Material material according to the following weights, and then add dispersion evenly in a high -speed hybrid machine to get modified polymapilic acid mixed raw materials:

[0045] 75 parts of PLA polystumin;

[0046] 2 parts of hydroxylcel starch;

[0047] 3 copies of two acetate cellulose;

[0048] Yunmu powder 1.1 copies;

[0049] (2) Uniformly mixed modified polymapilic acid mixed raw materials squeezed out the melting mixing through the double screw out, the extrusion system is used to modify the maternity of the polymapilic acid, and the vacuum is dry;

[0050] (3) 30 copies of maternal pipe slices of modifiers and 80 copies of the vacuum drying ordinary polystumin slices are put into a high -speed mixer mixing uniformly.Lactic acid fiber;

[0051] The spinning temperature is 215 ° C, the wound speed is 1700m / min; the extension temperature is 82 ° C, and the ...

Embodiment 3

[0058] A biological modification method of a good texture of lactic acid fiber, the steps are as follows:

[0059] (1) Material material according to the following weights, and then add dispersion evenly in a high -speed hybrid machine to get modified polymapilic acid mixed raw materials:

[0060] 73 parts of PLA polystumin;

[0061] 3 parts of hydroxydium starch;

[0062] 2 parts of two acetate cellulose;

[0063] Yunmu powder 1.5 copies;

[0064] (2) Uniformly mixed modified polymapilic acid mixed raw materials squeezed out the melting mixing through the double screw out, the extrusion system is used to modify the maternity of the polymapilic acid, and the vacuum is dry;

[0065](3) 30 copies of maternal pipe slices of modifiers and 80 copies of the vacuum drying ordinary polystumin slices are put into a high -speed mixer mixing uniformly.Lactic acid fiber;

[0066] The spinning temperature is 211 ° C, the wound speed is 1790m / min; the extension temperature is 81 ° C, and the ex...

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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PUM

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Abstract

The invention discloses a biological modification method of lactic acid fibers with good spinnabillity. The method comprises the following steps: charging various raw materials in to a high-speed mixer, and dispersing the raw materials at a high speed to obtain a modified polylactic acid mixture; melt blending and extruding the uniformly-mixed modified polylactic acid mixture by virtue of a dual-screw extruder to obtain modified polylactic acid master batch, and vacuum drying; placing the modified polylactic acid master batch and vacuum dried ordinary polylactic acid slices into a high-speed mixer, uniformly mixing, spinning the mixture on a melt spinning machine by virtue of a circular spinning hole to obtain the modified polylactic acid fibers, then carrying out the microorganism modification, and strictly controlling fermentation parameters. Different from the ordinary constant-temperature fermentation, by adopting the instantaneous heat treatment, a purpose of shortening the fermentation time and obtaining an unexpected modification effect can be achieved.

Description

Technical field [0001] The present invention involves a biological modification process of a good texture of lactic acid fibers, which belongs to the textile field. Background technique [0002] Polymine fiber (PLA) production raw material lactic acid is made from corn starch, so this fiber is also called corn fiber. It can be made of glucose fermentation with beet or grain to reduce the cost of preparing lactic acid polymer.The chemical agglomeration of the lactic acid cyclic diper or the direct polymerization of the lactic acid can obtain a polystumin that can obtain a polymalic acid.Products obtained by polystumin as raw materials have good biocompatibility and biological absorption, as well as bacteriostatic and flame retardability, and PLA has the best heat resistance in degradable thermoplastic polymer materials. [0003] As the number of institutions and enterprises developing clustering lactic acid fibers at home and abroad continues to increase, the application of polyst...

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 Applications(China)
IPC IPC(8): D01F6/92D01F1/10D06M16/00D06M101/32
Inventor 费雪纯
Owner 浙江逸蓓新材料科技有限公司
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