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Extra dark shade fabric and preparation method thereof

A fabric and extra black technology, which is applied in the field of extra black fabric and its preparation, can solve the problems of PET fiber dyeing difficulty, polyester fiber coloring difficulty, and polyester fiber performance reduction, so as to reduce migration, large degree of curl, increase compatibility effect

Active Publication Date: 2015-04-01
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the molecular chain of PET is regular, the crystallinity is good, the molecular chain is closely arranged, and there is no polar group that interacts with the dye molecule on the molecular chain, which makes the coloring of polyester fiber more difficult.
[0004] In order to solve the problem of PET fiber dyeing difficulties, the current technology or method is mainly through the introduction of dye molecule acceptors or the method of increasing the amount of polyester amorphous regions. Although the dyeing performance of polyester can be improved, the chain segment regularity of PET is destroyed. , in order to reduce the performance of polyester fiber to obtain the improvement of dyeing performance

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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  • Extra dark shade fabric and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0076] A preparation method of extra black fabric, comprising the following steps:

[0077] (1) Preparation of amino fatty acid ethylene glycol ester:

[0078] 1) Add dodecanedicarboxylic acid and methanol into the reactor at a molar ratio of 1:1.5, heat to 80°C under the catalysis of concentrated sulfuric acid, reflux for esterification, cool, separate and purify to obtain dodecanedicarboxylic acid Acid monomethyl ester; Described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of dodecane dicarboxylic acid;

[0079] 2) Dissolve the monomethyl dodecanedicarboxylate, lead tetraacetate and lithium bromide in benzene (molar ratio 1:1:1), wherein the monomethyl dodecanedicarboxylate concentration is 0.05mol / L , under a nitrogen atmosphere, react at 80 ° C, reflux, when no more gas is produced, add a certain amount of dilute sulfuric acid to react for 2 hours, then wash, purify and dry to obt...

Embodiment 2

[0101] A preparation method of extra black fabric, comprising the following steps:

[0102] (1) Preparation of amino fatty acid ethylene glycol ester:

[0103] 1) Add pentacodecanedicarboxylic acid and methanol into the reactor in a molar ratio of 1:1.5, under the catalysis of concentrated sulfuric acid, heat to 110°C, reflux for esterification, cool, separate and purify to obtain pentacodecane Dicarboxylic acid monomethyl ester; Described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of pentacosane dicarboxylic acid;

[0104] 2) The monomethyl pentacodecanedicarboxylate, lead tetraacetate and lithium bromide are dissolved in benzene (molar ratio 1:1:1), wherein the concentration of monomethyl pentacodecanedicarboxylate is 0.07mol / L, under nitrogen atmosphere, react at 85°C, reflux, when no more gas is generated, add a certain amount of dilute sulfuric acid to react for 3 hours, then w...

Embodiment 3

[0126] A preparation method of extra black fabric, comprising the following steps:

[0127] (1) Preparation of amino fatty acid ethylene glycol ester:

[0128] 1) Add pentadecanedicarboxylic acid and methanol into the reactor in a molar ratio of 1:1.5, under the catalysis of concentrated sulfuric acid, heat to 85°C, reflux for esterification, cool, separate and purify to obtain pentadecanedicarboxylic acid acid monomethyl ester; described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of pentadecanedicarboxylic acid;

[0129] 2) Dissolve the monomethyl pentadecanedicarboxylate, lead tetraacetate and lithium bromide in benzene (molar ratio 1:1:1), wherein the concentration of monomethyl pentadecanedicarboxylate is 0.08mol / L , under nitrogen atmosphere, react at 90°C, reflux, when no more gas is produced, add a certain amount of dilute sulfuric acid to react for 2.5 hours, then wash, purif...

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 relates to extra dark shade fabric and a preparation method thereof. The extra dark shade fabric is fabric which is prepared from modified polyester fiber, then dyed by disperse black dye and treated through deepening and active amino silicone oil treatment; the modified polyester fiber fabric is made of modified polyester, and the ratio of opaque body absorption coefficient K and opaque body scattering coefficient S, namely K / S, of the extra dark shade fabric treated through depth-finishing within a wave length of 400 to 700nm is increased greatly; the modified polyester is composed of polyester and amino fatty acid gylcol ester, the amino fatty acid gylcol ester is dispersed among molecular chains of the polyester, and the amino fatty acid gylcol ester and the molecular chains of the polyester are in hydrogen-bond interaction, so that the relative positions of the amino fatty acid gylcol ester and the molecular chains of the polyester are fixed. The extra dark shade fabric can be used for various garment materials and decoration articles.

Description

technical field [0001] The invention belongs to the technical field of modified fibers, and relates to an extra-black fabric and a preparation method thereof. Background technique [0002] Since its appearance, polyethylene terephthalate (PET) fiber has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fibers in the world. Polyester fiber has a series of excellent properties such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric has the advantages of wrinkle resistance and good stiffness, so , Polyester fibers are widely used in clothing, home textiles and other fields. [0003] PET is a symmetrical linear macromolecule, the molecular chain does not contain side chain groups, and its regularity is very good. Its main chain contains a rigid benzene ring and a fle...

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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IPC IPC(8): D06P3/54D06P1/16D06P5/02D06M15/643D01F6/92D01F1/10C08G63/183C08G63/78C07C227/18C07C229/08D06M101/32
Inventor 魏德新王山水汤方明晏金龙王力军卓怀智丁竹君
Owner JIANGSU HENGLI CHEM FIBER
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