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Stock solution-colored hollow polylactic acid fiber and preparation method thereof

A technology of dope coloring and lactic acid fiber, which is applied in the field of fiber production, can solve problems such as non-production methods, high technical requirements for color matching personnel, and complicated operation of pigment residues, etc., achieve high color fastness, solve white pollution, and overcome poor hydrolysis resistance Effect

Inactive Publication Date: 2018-06-22
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Several types of solvent carriers in the polylactic acid special solvent carrier type color masterbatch selected have good compatibility with polylactic acid. Through online addition, the utilization rate is improved. In fact, many difficulties are faced, and the technical requirements for color matching personnel are high. The corresponding production The equipment also needs to be improved, and the pigment residue operation is more complicated when the variety is changed, which is not the mainstream production method in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 Preparation of stock solution colored white hollow polylactic acid fiber

[0032] A. Preparation of stock solution colored white polylactic acid masterbatch:

[0033]Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (60wt%: 40wt%) of environmentally friendly pigment C.I. Pigment White 6 and auxiliary materials polyethylene wax and nano-calcium carbonate. Lactic acid chip powder 68%, environmental protection pigment 4%, auxiliary material 28%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying, the stock solution colored white polylactic acid masterbatch is prepared.

[0034] B. Preparation of stock solution colored white hollow polylactic acid fiber:

[0035] After drying the stock solution colored white polylactic acid masterbatch and polylactic acid slices, they are spun on the LHV431 type spinning machine, and stretched and spun on t...

Embodiment 2

[0038] Embodiment 2 Preparation of dope dyed blue hollow polylactic acid fiber

[0039] A. Preparation of stock solution colored blue polylactic acid masterbatch:

[0040] Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (50wt%: 50wt%) of environmentally friendly pigment C.I pigment blue 17:1 and auxiliary materials polyethylene wax and nano-calcium carbonate. The weight percentage is: Carrier polylactic acid chip powder 73%, environmental protection pigment 10%, auxiliary material 17%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying are made into blue polylactic acid masterbatches colored in stock solution.

[0041] B. Preparation of dope dyed blue hollow polylactic acid fiber:

[0042] After drying the dope-colored blue polylactic acid masterbatch and polylactic acid slices, they are spun on a LHV431 spinning machine, and drawn and spun on a LHV903 c...

Embodiment 3

[0045] Embodiment 3 preparation of dope coloring green hollow polylactic acid fiber

[0046] A. Preparation of stock solution colored green polylactic acid masterbatch:

[0047] Grind carrier polylactic acid slices into powders with a size of 100nm to 300nm, and mix them evenly with the mixture (40wt%: 60wt%) of environmentally friendly colorant light-fast emerald green lake and auxiliary materials polyethylene wax and nano-calcium carbonate. The weight percentage is: carrier Polylactic acid chip powder 83%, environmental protection pigment 7%, auxiliary material 10%. After blending and drying, screw extrusion melting, extruding, cooling, drawing, pelletizing and drying are made into green polylactic acid masterbatches colored with dope.

[0048] B. Preparation of stock solution colored green hollow polylactic acid fiber:

[0049] Spinning on the LHV431 type spinning machine after drying the stock solution colored green polylactic acid masterbatch and polylactic acid chips, ...

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Abstract

The invention relates to the technical field of fiber production, in particular to stock solution-colored hollow polylactic acid fiber and a preparation method thereof. The stock solution-colored hollow polylactic acid fiber is formed by spinning stock solution-colored polylactic acid masterbatch and a polylactic acid slice. The stock solution-colored hollow polylactic acid fiber has the advantages as follows: the stock solution-colored hollow polylactic acid fiber is processed from the stock solution-colored polylactic acid masterbatch prepared from an environment-friendly pigment as a raw material, the defect that polylactic acid has poor hydrolysis resistance can be fundamentally overcome, and adverse influence of a spinning after-dyeing and after-finishing technology on the polylacticacid is avoided. Garments produced by purely spinning or blending the stock solution-colored hollow polylactic acid fiber have the advantages of high color fastness, warming performance, fluffiness, good breathability, glossiness, a good hand feel, moisture conductivity, sweat absorption, ultraviolet resistance, biodegradability and the like.

Description

technical field [0001] The invention relates to the technical field of fiber production, in particular to a dope-colored hollow polylactic acid fiber and a preparation method thereof. Background technique [0002] Synthetic fibers polyester, nylon, polypropylene, and acrylic are synthesized from petrochemical products, and their physical and chemical properties are stable, but there is a problem that waste cannot be decomposed after use. In the most polluted areas, the increasing pollution of plastic film has affected the yield and quality of crops. Moreover, petroleum is a non-renewable resource. With the loss of petrochemical raw materials, in order to achieve sustainable development, new alternative raw materials are needed in the textile field. In particular, environmentally friendly polymers can be applied to agricultural mulch films, disposable packaging materials, and hygienic materials that are more in demand by the people. Polylactic acid (PLA) is an outstanding re...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/04D01F1/10D01D5/08D01D5/24
CPCD01D5/08D01D5/24D01F1/04D01F1/10D01F6/92
Inventor 陈辉华李东华刘萍朱亚宏陆育明冯忠耀顾惠琴杨卫忠杨成李忠
Owner SHANGHAI DEFULUN CHEM FIBER
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