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Dyeing process for acidic fluorescent dye

A fluorescent dye and process technology, applied in the field of acid fluorescent dye dyeing process, can solve the problems of poor dyeing reproducibility, dye uptake rate, inconsistent stability, poor color reproducibility in large-scale production, etc., to improve reproducibility, Avoid uneven dyeing and slow down the effect

Inactive Publication Date: 2015-12-23
PACIFIC (PANYU) TEXTILES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the dyeing reproducibility of nylon fabrics dyed with acid fluorescent dyes is generally poor in the mass production process, and the key to controlling the dyeing reproducibility is to control the dyeing pH value, dyeing process, and post-treatment process.
In terms of dyeing process, due to the strong dyeing reaction conditions in large-scale production, the dyeing rate and stability of dyes are inconsistent, and the degree of color fading after post-treatment is inconsistent, resulting in poor color reproducibility in large-scale production

Method used

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  • Dyeing process for acidic fluorescent dye
  • Dyeing process for acidic fluorescent dye
  • Dyeing process for acidic fluorescent dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 fluorescent light pink

[0030]Fabric: brocade + spandex warp knitted fabric, width 141cm, weight 155g / m 2

[0031] Equipment: Yaji AK-DSL dyeing vat, Datacolor color measuring and matching instrument, pH meter

[0032] The dyeing formula is as follows:

[0033]

[0034] The fixation formula is as follows:

[0035] Powf% (Demei Chemical) 5.0

[0036] HAC(g / L)0.3

[0037] Bath ratio 1:5

[0038] Put the fabric in the AK-DSL dye vat, add softener according to the above formula at 40°C, add leveling agent after stirring for 5 minutes, add organic acid release agent VS after stirring for 5 minutes, add NylosanE8G1 yellow and and NylosanB red (control linear addition time is 10min), heat up to 100°C at a rate of 0.8°C / min and keep warm for 25min, then cool down to 60°C at a rate of 1.5°C / min to drain water; Wash, heat up to 40°C at a rate of 3°C / min and keep warm for 4 minutes, drain; at 43°C, add water and acetic acid into the Then dyeing air machine acc...

Embodiment 2

[0041] Example 2 Fluorescent medium purple

[0042] Fabric and equipment are all identical with embodiment 1.

[0043] The dyeing formula is as follows:

[0044]

[0045] Color fixing formula is identical with embodiment 1.

[0046] According to the above formula, the fluorescent medium purple fabric was prepared by the same dyeing process as in Example 1, wherein the dyeing heating rate was 1.0° C. / min.

Embodiment 3

[0049] Embodiment 3 fluorescent brilliant red

[0050] Fabric and equipment are all identical with embodiment 1.

[0051] The dyeing formula is as follows:

[0052]

[0053]

[0054] Color fixing formula is identical with embodiment 1.

[0055] According to the above formula, fluorescent bright red fabric was prepared by the same dyeing process as in Example 1, wherein the dyeing heating rate was 1.5° C. / min. .

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Abstract

The invention discloses a dyeing process for an acidic fluorescent dye. The dyeing process comprises a dyeing process, namely sequentially adding a dyeing aid and an acidic fluorescent dye to a fabric to be dyed, and carrying out dip dyeing at 30 to 40 DEG C; besides, heating and dyeing the fabric subjected to the dip dyeing by using a dyeing solution consisting of the dyeing aid and the acidic fluorescent dye; the dyeing aid comprises an organic acid-releasing agent and is used for continuously adjusting the pH value of the dyeing solution to 4 to 4.5. According to the dyeing process disclosed by the invention, the organic acid-releasing agent is added at 40 DEG C and then releases acid slowly with temperature rise, and the pH of the dyeing solution is changed to 4 to 4.5 slowly from the original 6 to 7.5, so that the uptake rate of dyeing a nylon fabric with the acid fluorescent dye can be slowed, and the uptake rate of the acidic fluorescent dye in the whole temperature-rise dyeing process is kept consistent, and the nonuniformity in dyeing is effectively avoided, and therefore the reproducibility of a dyed color is improved.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a dyeing process of acid fluorescent dyes. Background technique [0002] Both fashion brands and fashion styles are becoming more and more diversified, among which fluorescent colors have become more and more popular in recent years, especially the colors of underwear and swimsuit fabrics are becoming more and more colorful. [0003] Rapidly and accurately improving the reproducibility of mass production dyeing can improve the one-time success rate of dyeing, effectively reduce production costs, and improve the competitiveness of enterprises. At present, the dyeing reproducibility of nylon fabrics dyed with acid fluorescent dyes is generally poor in the mass production process, and the key to controlling the dyeing reproducibility is to control the dyeing pH value, dyeing process, and post-treatment process. In terms of dyeing process, due to the ...

Claims

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Application Information

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IPC IPC(8): D06P1/39D06P1/44D06P5/02
Inventor 王思捷张贵张烨肖能智万俊彪陈臻张新华李明辉皮建兵陈军李成炳
Owner PACIFIC (PANYU) TEXTILES LTD
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