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

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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 technolog

Method used

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  • Extra dark shade fabric and preparation method thereof

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[0075] Example 1

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

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

[0078] 1) Dodecanedicarboxylic acid and methanol are added to the reactor in a molar ratio of 1:1.5, under the catalysis of concentrated sulfuric acid, heated to 80 ° C, refluxed for esterification, cooling, separation and purification to obtain dodecanedicarboxylic acid Monomethyl acid; the concentrated sulfuric acid refers to the sulfuric acid with a mass concentration of 70%, and the added amount of the concentrated sulfuric acid is 3wt% of dodecanedicarboxylic acid;

[0079] 2) described dodecanedicarboxylate monomethyl ester, lead tetraacetate and lithium bromide are dissolved in benzene (mol ratio 1:1:1), wherein dodecanedicarboxylate monomethyl ester concentration is 0.05mol / L , in a nitrogen atmosphere, react at 80 ° C, reflux, when no gas is produced, add a certain amount of dilute sulfuric acid to react f...

Example Embodiment

[0100] Example 2

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

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

[0103] 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 110 ° C, reflux for esterification, cooling, separation and purification to obtain pentadodecane Monomethyl dicarboxylate; Described concentrated sulfuric acid refers to sulfuric acid with a mass concentration of 70%, and the added amount of concentrated sulfuric acid is 3wt% of pentadodecanedicarboxylic acid;

[0104] 2) described pentadodecanedicarboxylate monomethyl ester, lead tetraacetate and lithium bromide are dissolved in benzene (mol ratio 1:1:1), wherein pentadecanedicarboxylate monomethyl ester concentration is 0.07mol / L, under nitrogen atmosphere, react at 85°C, reflux, when no gas is produced, add a certain amount of dilute sulfuric acid to reac...

Example Embodiment

[0125] Example 3

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

[0127] (1) preparation of amino fatty acid 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, cooling, separation and purification to obtain pentadecanedicarboxylic acid Monomethyl acid; the concentrated sulfuric acid refers to the sulfuric acid with a mass concentration of 70%, and the addition of the concentrated sulfuric acid is 3wt% of the pentadecanedicarboxylic acid;

[0129] 2) described pentadecanedicarboxylate monomethyl ester, lead tetraacetate and lithium bromide are dissolved in benzene (mol ratio 1:1:1), wherein pentadecanedicarboxylate monomethyl ester concentration is 0.08mol / L , under nitrogen atmosphere, react at 90 ℃, reflux, when no gas is produced, add a certain amount of dilute sulfuric acid to r...

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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

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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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