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Microcapsule disperse dyeing process for superfine fibre synthetic leather

A synthetic leather and superfine fiber technology, applied in the field of dye dyeing process, can solve the problems of uneven dyeing, high chroma value, large COD load, etc., achieve good level dyeing, fast heating rate, and save production time

Inactive Publication Date: 2008-06-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a microcapsule disperse dye dyeing process for ultrafine fiber synthetic leather, so as to solve the uneven dyeing, poor color fastness and color of dyeing wastewater in the conventional dyeing of ultrafine fiber synthetic leather in the prior art. The problem of high degree value and large COD load

Method used

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  • Microcapsule disperse dyeing process for superfine fibre synthetic leather
  • Microcapsule disperse dyeing process for superfine fibre synthetic leather
  • Microcapsule disperse dyeing process for superfine fibre synthetic leather

Examples

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Effect test

Embodiment 1

[0023] C.I. Disperse blue 56 dye microcapsules in 2% owf, bath ratio 1:30, when the pH value of the dyeing bath is 3, 5, 9, 10 respectively, heat up from room temperature to 80 ℃ at 3 ℃ / min, keep it warm for 10 min, and then 1°C / min to 120°C, keep warm for 40min, then 2°C / min to drop to above room temperature, and dye superfine fiber synthetic leather.

Embodiment 2

[0025] C.I. Disperse blue 56 dye microcapsules in 2% owf, bath ratio 1:30, pH value 7, heat up at 3°C / min, respectively at 70°C, 80°C, 90°C, 100°C, 110°C, 120°C , At 130°C, keep warm for 40 minutes, then drop to above room temperature at 2°C / min, dye superfine fiber synthetic leather.

Embodiment 3

[0027] C.I. Disperse blue 56 dye microcapsules in 2% owf, bath ratio 1:30, pH value of 7, from room temperature to 80 ° C at 3 ° C / min, keep warm for 10 min, and then at 1 ° C / min to 120 ° C, After keeping warm for 10min, 20min, 30min, 40min, 50min, 60min and 70min, respectively, 2°C / min lowered to above room temperature, and dyed superfine fiber synthetic leather.

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Abstract

The present invention discloses a dyeing process using disperse dye microcapsules for the superfine fiber synthetic leather. The dyeing process includes two steps: (1) C.I. disperse blue 56 dye microcapsules are 2 percent owf, liquor ratio is 1:30, pH is 3 to 10, the room temperature is raised to 80 DEG C to 100 DEG C at 0.5 to 3 DEG C / min, and the temperature is kept for ten to forty minutes; (2) The temperature is raised to 120 DEG C to 140 DEG C at 1 to 3 DEG C / min, after being kept for ten to seventy minutes, the temperature is decreased to the temperature is reduced to the room temperature at 1 to 2 DEG C / min, and the superfine fiber synthetic leather is dyed. Applicable to industrialized production, the method has the advantages of simple steps, good dyeing performance and less pollution.

Description

technical field [0001] The invention belongs to the field of dyeing technology, and more particularly relates to a microcapsule dyeing technology of superfine fiber synthetic leather with disperse dyes. Background technique [0002] Sea-island ultrafine fibers are too small in size, large in specific surface area, high in amorphous content in the microstructure, and fast in dye adsorption; the two-component ultrafine fibers have a large difference in the adsorption capacity of dyes, making the new ultrafine fibers The dyeing process of fine fiber synthetic leather is much different from that of conventional fiber synthetic leather. It is mainly manifested in that the initial dyeing rate, dyeing rate, migration rate, and even the combination form of the dye to the two are not the same, so the dyeing of the new superfine fiber synthetic leather has high requirements on the dye and the process; in addition, As an auxiliary agent for microfiber dyeing, it must not only have goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P3/00
Inventor 罗艳徐小茗杜鹃钟毅
Owner DONGHUA UNIV
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