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Dyeing process of modified terylene

A technology of polyester modification, applied in the field of dyeing process of modified polyester, which can solve the problems of great difficulty, and achieve the effect of solving the problem of easy color and poor spinnability

Inactive Publication Date: 2009-07-01
TIANJIN TEXTILE ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because modified polyester has the inherent characteristics of polyester and certain acrylic characteristics, it is very difficult to dye. At present, there is no mature process for dyeing modified polyester tops.

Method used

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  • Dyeing process of modified terylene

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Experimental program
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Effect test

Embodiment

[0019] Modified polyester top dyed rose red, weighing 120 kg.

[0020] 1. Dye:

[0021] Cationic pink PG, the dosage is 0.26% of the weight of the modified polyester top;

[0022] Cationic red 3R, the dosage is 0.14% of the weight of the modified polyester top.

[0023] 2. Additives:

[0024] Acetic acid, consumption is 2% of modified polyester wool top weight;

[0025] Antistatic agent SN (octadecyl dimethyl nitrate), consumption is 1% of modified polyester top weight;

[0026] Bulking agent SF (fatty acid polyoxyethylene ester), consumption is 2% of modified polyester wool top weight;

[0027] The softener ES (formed by emulsification of stearic acid, diethylenetriamine amide, epichlorohydrin and acetic acid) has an amount of 2% of the weight of the modified polyester top.

[0028] 3. Dyeing equipment: top dyeing machine N371.

[0029] 4. Dyeing process:

[0030] (1) After the tops are put into the machine at normal temperature, first fill up the water and fully soak ...

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Abstract

The invention relates to a dyeing process for modified terylene, which includes: (1) adding the wool top into the machine at room temperature, adding water, immersing for 10 minutes; adding acetic acid, operating for 10 minutes; adding a cationic dye, operating for 20 minutes; heating to 40 DEG C according to the speed of 1 DEG C. / 1 minute, keeping the temperature for 15 minutes; heating to 50 DEG C. according to the speed of 1 DEG C. / 1.5 minutes, keeping the temperature for 20 minutes; heating to 65 DEG C. according to the speed of 1 DEG C. / 1 minute, keeping the temperature for 20 minutes; heating to 90 DEG C. according to the speed of 1 DEG C. / 1 minute, keeping the temperature for 10 minutes; cooling down to 40 DEG C., washing for 30 minutes, adding an antistatic agent SN, a softening agent ES, a leavening agent SF, then operating for 30 minutes, discharging water; (3) back washing, with the first back washing slot in temperature of 50 DEG C., the second back washing slot in temperature of 40 DEG C., the third slot in normal temperature; (4) curing at the temperature of 110 DEG C.. The invention has advantages that (1) hardness in modified terylene wool top dyeing is effectively solved; (2) problem of color spot easiness in prior process is solved by utilizing low temperature coloring characteristic of the modified terylene; (3) problem of bad spinnability of wool top is solved by utilizing characteristic of modified terylene vitrification at low temperature and modifying the process.

Description

technical field [0001] The invention relates to a fiber dyeing process in the textile field, in particular to a dyeing process of modified polyester. Background technique [0002] Modified polyester (scientific name: ECDP fiber) is to introduce sulfonic acid groups or phosphoric acid groups that have affinity for cationic dyes on polyester macromolecules, and then add aliphatic or aromatic dicarboxylic acid groups and their derivatives, fatty or dicarboxylic acid groups. Alcohols and their derivatives and carboxylic acid compounds, etc. Its main feature is that it can be dyed with cationic dyes at normal pressure. At present, the dyeing process of modified polyester skein has been perfected day by day, but the top dyeing of modified polyester is still a blank. Because modified polyester has the inherent characteristics of polyester and certain acrylic characteristics, it is very difficult to dye. At present, there is no mature process for dyeing modified polyester tops. C...

Claims

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Application Information

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IPC IPC(8): D06P3/52D06P1/00D06M13/322D06M13/224D06M101/32
Inventor 王振声吕增仁王文刚郝建保
Owner TIANJIN TEXTILE ENG RES INST
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