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Post-acid-supplementing dyeing method and textile dyed by same

A dyeing method and technology for textiles, applied in the field of textile dyeing and finishing, can solve the problems of reducing the dyeing speed of dyes, and the dyeing will be white.

Pending Publication Date: 2021-08-20
福州华冠针纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method reduces the dyeing speed of the dye in the early stage by adding acid, and provides sufficient time for the dye to fully penetrate into the inner fibers of the strands before adding acid, so that the inner fibers can absorb enough dye, and the inside and outside after dyeing The fiber color is basically the same, thus effectively solving the problem that the dense structure such as strands cannot be dyed and will appear white

Method used

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  • Post-acid-supplementing dyeing method and textile dyed by same
  • Post-acid-supplementing dyeing method and textile dyed by same
  • Post-acid-supplementing dyeing method and textile dyed by same

Examples

Experimental program
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Effect test

Embodiment 1

[0070] The post-acid dyeing of the full nylon lace lace of embodiment 1 band strand

[0071] The present embodiment provides a kind of post-acid dyeing method, and it comprises the following steps:

[0072] (1) Put the textile to be dyed (full nylon lace lace fabric with strands) into the dyeing device;

[0073] (2) At 38°C, add acidic leveling agent TBW-95, and add the prepared dye at a speed of 20L / min;

[0074] (3) Start at 38°C, heat up to 98°C at a rate of 1.2°C / min, and keep warm for 20 minutes;

[0075] (4) After the heat preservation is completed, cool down to 38°C at a speed of 3.0°C / min, and then add glacial acetic acid solution C03 at a speed of 20L / min;

[0076] (5) After adding the glacial acetic acid solution, raise the temperature to 98°C at a rate of 1.2°C / min, and keep it warm for 20 minutes;

[0077] (6) After the heat preservation is over, cool down to 80°C at a speed of 3.0°C / min. After the dyeing is completed, the dyed textile (full nylon lace fabric wi...

experiment example

[0105] EXPERIMENTAL EXAMPLE Investigation on the dyeing effect of strands of textiles after dyeing

[0106] In this example, the dyed textiles in Example 1 and Comparative Examples 1-4 were cut and color-matched to evaluate the dyeing effect of strands. The dyeing effects of the strands of Example 1 and Comparative Examples 1 to 4 are shown in Table 2, and the comparison results are the average level of the dyeing effects of three different batches of cut samples of dyed fabrics after color matching.

[0107]The strand dyeing effect table of table 2 embodiment 1 and comparative examples 1~4

[0108]

[0109]

[0110] From the dyeing effect of Table 2, it can be known that the dyeing method of the present invention can make the internal fibers of the strands absorb enough dyestuff, which is consistent with the color of the external fibers of the strands. After the fabric is stentered, the cloth surface will not The phenomenon of white spots appears, which effectively sol...

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Abstract

The invention relates to a post-acid-supplementing dyeing method and a textile dyed by the same. The post-acid-supplementing dyeing method comprises the following steps of putting a to-be-dyed textile into a dyeing device; adding a leveling agent at the temperature of 35-40 DEG C, and adding a dye at the speed of 18-22 L / min; starting from 35 DEG C to 40 DEG C, heating the temperature to 90 DEG C to 100 DEG C at the speed of 1.0 DEG C / min to 1.5 DEG C / min, and conducting heat preservation for 15-20min; cooling to 38-45 DEG C at the speed of 2.0-4.0 DEG C / min, and then adding a glacial acetic acid solution at the speed of 18-22L / min; then, heating the temperature to 98-100 DEG C at the speed of 1.0-1.5 DEG C / min, and conducting heat preservation for 15-20 min; and finally, cooling to 70-80 DEG C at the speed of 2.0-4.0 DEG C / min, and finishing dyeing. According to the post-acid-supplementing dyeing method, through a post-acid-supplementing mode, the dyeing speed of the dye in the early stage is reduced, sufficient time is provided before acid adding so that the dye can fully permeate into internal fibers, the internal fibers can adsorb sufficient dye, and the colors of the internal fibers and the external fibers after dyeing are basically consistent; and the problem that the to-be-dyed textile cannot be thoroughly dyed and can be white is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and in particular relates to a post-acid dyeing method and textiles obtained by dyeing. Background technique [0002] Currently, strands are widely used in lace products because of their unique three-dimensional effect, especially in outerwear lace. However, due to the thicker strands and tight structure, it is prone to impermeable dyeing. Often the outer surface fibers have been dyed, but the inner core fibers have not been dyed. Moreover, after different colors are dyed, the degree of lack of dyeing is different. For example, the lack of dyeing in light and medium colors is less obvious, but the lack of dyeing in dark colors is more obvious. When the lace fabric with strands is stretched by a hot air stenter setting machine after dyeing, the problem of not being dyed through will be exposed, and white spots will appear on the fabric surface, which directly affects the qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/39D06P1/653D06P3/24
CPCD06P1/0032D06P1/6533D06P1/39D06P3/241
Inventor 阙荣琪
Owner 福州华冠针纺织品有限公司
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