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A method for improving the brightness and tinting strength of polyester fibers

A polyester fiber, vividness technology, applied in the field of chemical fiber manufacturing, can solve the problems of insufficient fiber vividness and tinting strength

Inactive Publication Date: 2020-10-27
浙江恒烨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

[0006] Conventional use of dope dyed polyester fiber has deficiencies in fiber brilliance and tinting strength

Method used

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  • A method for improving the brightness and tinting strength of polyester fibers
  • A method for improving the brightness and tinting strength of polyester fibers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The method for improving the brightness and tinting strength of polyester fibers involved in the present embodiment may further comprise the steps:

[0025] S1. Preparation of colored masterbatch: the prepared colored masterbatch contains 20-30% of pigment, 5-10% of ethylene acrylate copolymer, 2-5% of dispersant, and the balance is carrier resin. Ethylene acrylate copolymer has polar groups at both ends, one end can be combined with polyester molecules, and the other end can be combined with pigments. It can improve the binding ability of polyester molecules and pigments. The used pigments are purchased toner powders that can be used for polyester stock solution coloring, and the colors can be red, blue and other colors.

[0026] The color masterbatch prepared in this step contains 20% of pigment, 5% of ethylene acrylate copolymer, 2% of dispersant, and the rest is carrier resin. The choice of the carrier resin is the same as that of the prepared chemical fiber raw m...

Embodiment 2

[0036] A method for improving the vividness and tinting strength of polyester fibers involved in this embodiment differs from that of Embodiment 1 in that the prepared masterbatch contains 25% pigment, 7% ethylene acrylate copolymer, 3 % of dispersant, the balance is carrier resin. The dispersant used is prepared by mixing polyethylene wax and simethicone in a ratio of 4:1.

Embodiment 3

[0038] A kind of method that this embodiment involves to improve the vividness and tinting strength of polyester fiber, the difference with embodiment one is that the prepared coloring masterbatch contains 30% pigment, 10% ethylene acrylate copolymer, 5 % of dispersant, the balance is carrier resin. The dispersant used is prepared by mixing polyethylene wax and simethicone in a ratio of 3:1.

[0039] The method for improving the vividness and tinting strength of polyester fibers involved in the present invention is different from the previous factory production, in order to increase the vividness of the color, and artificially increase the concentration of pigment content, or search for pigments with higher tinting strength and higher price, To meet the color vividness requirements in the market. It uses ethylene acrylate copolymer on the basis of the existing pigments, which improves the vividness of the color and achieves a lower added cost than the ordinary market. The ad...

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Abstract

The invention discloses a method for improving brilliance and tinting strength of polyester fiber. The method comprises the following step: S1, preparing coloring master batch, wherein the prepared coloring master batch is prepared from 20 to 30% of pigment, 5 to 10% of ethylene acrylate copolymer, 2 to 5% of dispersing agent and the balance of carrier resin; S2, mixing the coloring master batch with PET slices and drying, wherein the weight proportion of the coloring master batch is 5 to 20%; S3, putting the coloring master batch and the PET slices which are evenly mixed into a spinning machine to be molten and extruding into silk by a spinneret plate to form polyester fiber. According to the method for improving brilliance and tinting strength of the polyester fiber disclosed by the invention, the coloring master batch containing pigment and the ethylene acrylate copolymer is used, so that brilliance and the tinting strength of the prepared polyester fiber is improved, and the brilliance of the polyester fiber is improved by 20%; meanwhile, spinning stability is improved, pressure is stable, and a spinning period is improved by 20%; furthermore, in an assembly cleaning process, residues are less, more convenience is brought to cleaning, and cost and energy consumption are obviously reduced.

Description

technical field [0001] The invention relates to the technical field of chemical fiber manufacturing, in particular to a method for improving the brightness and tinting strength of polyester fibers. Background technique [0002] At present, fiber materials have become one of the fastest-growing and most active fields of science and technology in the world. The "13th Five-Year" National Key Research Program Project supports a total of 15 projects in the textile field. Industrialization is an important measure to promote the development of high-performance composite materials, advanced structural materials, new functional materials, and green fiber materials. Among them, the dope dyed fiber is obtained by adding a colorant (masterbatch) to the spinning solution or melt, and the colored fiber is obtained by spinning, which saves the dyeing process, reduces waste water discharge, and has outstanding environmental friendliness. At present, the output of dope dyed fiber in my coun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/04
CPCD01F1/04D01F6/92
Inventor 王军郭福江葛汉周兴江河俞涛郭润叶
Owner 浙江恒烨新材料科技有限公司
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