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Novel polylactic acid fiber fabric

A polylactic acid fiber, polylactic acid technology, applied in fiber processing, biochemical fiber processing, conjugated synthetic polymer rayon, etc., can solve the problem that polylactic acid fiber is not easy to dye, and the influence of special-shaped PLA fiber spinnability, etc. problem, to achieve the effect of simple raw materials

Inactive Publication Date: 2016-01-13
HUZHOU HAOMING TEXTILE CO LTD
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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

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A novel polylactic acid fiber fabric, which is prepared by the following method:

[0031] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:

[0032] 68 parts of PDLLA polylactic acid;

[0033] 9 parts of PLLA polylactic acid;

[0034] 3 parts of hydroxypropyl starch;

[0035] 3 parts of cellulose diacetate;

[0036] 0.2 part of nanometer talcum powder;

[0037] 0.3 parts of mica powder;

[0038] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;

[0039] (3) Put 20 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried common polylactic acid slices into a high-speed mixer and mix evenly. The mixture is spun on a melt spinning machine through cir...

Embodiment 2

[0047] A novel polylactic acid fiber fabric, which is prepared by the following method:

[0048] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:

[0049] 69 parts of PDLLA polylactic acid;

[0050] 8 parts of PLLA polylactic acid;

[0051] 3.5 parts of hydroxypropyl starch;

[0052] 2 parts of cellulose diacetate;

[0053] 0.5 part of nanometer talcum powder;

[0054] 0.2 parts of mica powder;

[0055] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;

[0056] (3) Put 20 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried ordinary polylactic acid slices into a high-speed mixer and mix evenly, and the mixture is spun on a melt spinning machine thr...

Embodiment 3

[0064] A novel polylactic acid fiber fabric, which is prepared by the following method:

[0065] (1) Prepare raw materials according to the following parts by weight, and then add them into a high-speed mixer to disperse evenly to obtain mixed raw materials of modified polylactic acid:

[0066] 69 parts of PDLLA polylactic acid;

[0067] 9 parts of PLLA polylactic acid;

[0068] 3.1 parts of hydroxypropyl starch;

[0069] 3 parts of cellulose diacetate;

[0070] 0.3 part of nanometer talcum powder;

[0071]0.2 parts of mica powder;

[0072] (2) Melt, blend and extrude the homogeneously mixed modified polylactic acid mixed raw materials through a twin-screw extruder to obtain a modified polylactic acid masterbatch, and dry it in vacuum;

[0073] (3) Put 20 parts of modified polylactic acid functional masterbatch slices and 80 parts of vacuum-dried common polylactic acid slices into a high-speed mixer and mix evenly. The mixture is spun on a melt spinning machine through ci...

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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Abstract

The invention discloses a novel easy-dyeing modified polylactic acid fiber with good hygroscopicity. The fiber is prepared by the following method: adding a variety of raw materials into a high speed mixing machine, and conducting high speed dispersion to obtain a modified polylactic acid mixture; conducting melt blending and extrusion on the uniformly mixed modified poly lactic acid mixture by a double screw extruder to prepare modified polylactic acid masterbatch, and conducting vacuum drying; adding the modified polylactic acid functional masterbatch slice and vacuum drying ordinary polylactic acid slice into a high-speed mixer, and evenly mixing; spinning the mixture in a melt spinning machine by a circular spinneret orifice to obtain modified polylactic acid fiber; then conducting microorganism modification and strictly controlling the fermentation parameters; and spraying water to wet he prepared polylactic acid fiber water, evenly spraying a composite bacteria liquid, fermenting under constant temperature of 38.5 DEG C for 72-79 h.

Description

technical field [0001] The invention relates to a novel polylactic acid fiber fabric, which belongs to the textile field. Background technique [0002] The raw material of polylactic acid fiber (PLA) is lactic acid obtained from cornstarch, so this fiber is also called corn fiber, which can be made from sugar beets or grains through glucose fermentation to reduce the cost of preparing lactic acid polymers. Polylactic acid with high molecular weight can be obtained by chemical polymerization of cyclic dimer of lactic acid or direct polymerization of lactic acid. Products made from polylactic acid have good biocompatibility and bioabsorbability, as well as bacteriostasis and flame retardancy, and PLA has the best heat resistance among degradable thermoplastic polymer materials. [0003] With the increasing number of institutions and enterprises developing polylactic acid fibers at home and abroad, the application of polylactic acid fibers in the textile industry will become m...

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): D01F8/14D01F1/10D01F11/08D06M16/00D03D15/00D06M101/32
Inventor 费雪纯
Owner HUZHOU HAOMING TEXTILE CO LTD
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