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How to solve the problem of white, anti-staining

Published on:2013/5/24 16:07:41

Keyword:Textiles, garments, printing, sand washing machine, weaving, fiber, printing and dyeing, yarn, washing machine
Introduction:1 Introduction In the processing of cotton, silk, nylon, wool and other fabrics in the process, often encounter such problems, one for

 1 Introduction

In the processing of cotton, silk, nylon, wool and other fabrics in the process, often encounter such problems, one for printing after printing fabric washing process often produces white, staining phenomena, white or stain fabric grin particularly evident. Two for color fabrics, taking into account the color fastness and the mere mention of the situation, although usually amylase desizing, but some color fastness of dyed yarn less than ideal due, or some dyes such as red, turquoise blue and other colors in prison degree already poor, the desizing process, or there will be hydrolyzed or unhydrolyzed yarn dye solution off again working fluid, causing white, stained, dyed yarn staining, seriously affecting the quality of products. Three for clothing sand, in sand process, falling down on the garment dye redeposition up, resulting in other parts of the white, light-colored ground staining, and for denim clothing, their usual indigo dye because of its own good color fastness, white stained very serious, resulting in three-dimensional sand good clothing is not strong, achieving the desired design. These problems are a direct impact on the key factors of product quality is good or bad.
How to effectively solve the textile dyeing and finishing of this class of white, anti-staining problem then?
 
One, starting from the choice of additives, a reasonable choice white, anti-staining agent.
Second, starting from the choice of dyes, try to choose a relatively good fastness, staining of small dye.
Three, starting from the process to develop, develop a reasonable process to minimize the concentration of dye in the working fluid, may cause contamination at every step of adding the right amount of white, both anti-staining agent.
 
Two trials
 
 
2.1 Materials and Equipment
2.1.1 dyes and auxiliaries
White, anti-staining agent TF-136 (transfer of the Corporation), amylase activity Turquoise Blue KN-G, reactive brilliant blue KN-R, reactive red X-3B, Direct Turquoise Blue GL, Direct Red BS, nylon Hill Scarlet F-3GL, Acid Red N-3B, 7658 amylase desizing enzymes, soaping SN-S
2.1.2 Instruments and Equipment
Constant temperature water bath
Fabric
Cotton fabric (reactive, direct dyes using cotton)
Nylon fabric (acid dyes using nylon)
2.2 Methods
The working fluid Recipe: Dye: 200ppm
White, anti-stick agent: 2g / L
Good preparation working fluid 200ml, until reach the appropriate temperature conditions, into 5 × 10cm size fabric (cotton or brocade) impregnated with 5 min, and then fully cold water, dried stain evaluate its situation. Consideration to the plant at different temperatures under the process conditions are present anti-staining problems, so the experiment investigated at room temperature, 50 ℃, 80 ℃ different temperatures such anti-staining effect.
2.4 Evaluation of white ground contamination
Using GB251-1995 assessing staining Gray Card assessing staining series, up to 5, 5 is best.
 
3 Results and discussion
3.1 Different dyes white, anti-staining case
3.1.1 Active Turquoise Blue KN-G
Table 1 activity Turquoise Blue KN-G anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4 级 4 4
White, anti-staining agents (market-like) 3 3 2-3 grade
Soaping SN-S 3 级 2-3 grade 2
Blank 2 2 1-2 grade
3.1.2 Reactive Brilliant Blue KN-R
Table 2 reactive brilliant blue KN-R anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4 级 4 4
White, anti-staining agents (market-like) 3-4 3-4 3
Soaping SN-S 3-4 Grade 3-4 Grade 3
Blank 3-4 3-4 3
 
3.1.3 Reactive Red X-3B
Table 3 reactive red X-3B anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4 级 4 4
White, anti-staining agents (market-like) 3 3 3
Soaping SN-S 2-3 Grade 2-3 Grade 2-3 Grade
Blank 2 2 2
3.1.4 Direct Turquoise Blue GL
Table 4 Direct Turquoise Blue GL anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4 级 3-4 3-4
White, anti-staining agents (market-like) 3 2-3 2-3 grade level
Soaping SN-S 3 级 2-3 grade 2
Blank 2 2 1-2 grade
3.1.5 Direct Red BS
Table 5 Direct Red BS anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 3-4 3-4 3-4 grade level
White, anti-staining agents (market-like) 2-3 Grade 2-3 Grade 2
Soaping SN-S 2 Level 2 Level 1-2 Level
Blank 2 2 1-2 grade
3.1.6 indigo
Table 6 indigo anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 3-4 3-4 3-4 grade level
White, anti-staining agents (market-like) 2-3 Grade 2-3 Grade 2
Soaping SN-S 2-3 Grade 2-3 Grade 2
Blank 2 2 1-2 grade
3.1.7 Nylon Hill Scarlet F-3GL
Table 7 Nylon Hill Scarlet F-3GL anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4-5 Level 4-5 Level 4
White, anti-staining agents (market-like) 3 3 2-3 grade
Soaping SN-S 3 Level 3 Level 2-3 Level
Blank 2 1-2 2-3 grade level
3.1.8 Acid Red N-3B
Table 8 Acid Red N-3B anti-stick situation
Temperature 50 ℃ 80 ℃
White, anti-stick agent TF-136 4-5 Level 4-5 Level 4
White, anti-staining agents (market-like) 3 3 2-3 grade
Soaping SN-S 4 级 4 3-4
Blank 2-3 levels 1 - 2 1
 
Table 1-8 shows that under different temperature conditions white, anti-stick effect is different; using different white, anti-staining dye additives on the same kind of white, anti-stick effect is different; using the same anti-stick agent only in white, white, different dyes on the anti-staining effect is different. Therefore reasonable to develop the processing temperature, a reasonable choice relatively good fastness dyes, reasonable to choose white, anti-stick additives are necessary.
White, anti-stick agent TF-136 in direct, reactive, acid dyes such as white, both with excellent anti-stick effect. This is because the TF-136 not unlike the conventional anti-staining polyacrylic soaping agent (such as soap lotion SN-S), polyacrylic conventional products focus is soaping effect, both white, certain anti- stick effect, but its white, anti-stick effect is not ideal, it is only applicable to the general soaping process. The new white, anti-staining agent TF-136, focus is white, anti-staining soaping effect both certain functions. On the one hand it has a good dispersing power, can wash down dirt quickly dye dispersed in water to prevent further contamination. On the other hand, the right has a strong affinity for anionic dyes can absorb dyes, the dye is locked in the working fluid, hydrogen bonding and charge both gravity and ground white fibers that prevent the dye uptake, serve to prevent the dip colored effect. Through the above anti-stick dual role so as to achieve excellence in white, anti-stick effect.
3.2 pairs of dye affinity and dispersion properties
Table 9 different additives on the dispersion of the dye
Dye Appearance
White, anti-stick agent TF-136 red dye is transparent, bright color
White, anti-staining agents (market-like) red dye is slightly transparent, more vivid color
Soaping SN-S dye is turbid liquid, dull
Turbid liquid dye is blank, dull
Note: The above nylon Scarlet F-3GL Hill
Table 9 shows that white, anti-staining agent significantly improved the appearance of the dye, while soaping is no change in the appearance on the dye. This is because the anti-staining agent white, TF-136 not only has excellent dispersibility, but has a strong affinity for the dye, the dye binding, and solubilize the dye, so that the dye becomes transparent by the turbidity, color is also very bright .
Therefore, in actual processing, the performance of the dye is locked in the working fluid, to prevent the dye, play a role in preventing staining.
3.3 TF-136 various amounts of white, anti-staining case when
Table 10 different usage situations when the white, anti-staining
0 1.0g / L 2.0g / L 3.0g / L
Room temperature for 2-3 grade 3-4 4-5 4-5
50 ℃ 1 - 2 级 3-4 4-5 4-5
80 ℃ 1 Level 3 Level 4 4
Note: The above using Acid Red N-3B
Seen from Table 10, white, anti-staining dosage of the anti-stick effect has a great influence. With the increase in the amount, in a certain extent, improve anti-stick effect, the general amount at 2.0g / L or more will be able to achieve a good white, anti-stick effect.
3.4 Different anti-staining dye concentration dialogue to influence
Table 11 different anti-staining dye concentration dialogue to influence
100ppm 200ppm 300ppm
Room temperature for 4-5 4 3-4
50 ℃ 4-5 Level 3-4 Level 3
80 ℃ 4 级 3-4 3
Note: The above direct Turquoise Blue GL
Be seen from Table 11, the white, the amount of anti-staining agent under certain circumstances, different concentrations of the dye also affects the white, anti-staining effect. In general, the dye concentration, will reduce the white, anti-stick effect.
So for dark varieties in the actual production, to strengthen the rinse to reduce the floating color on the fabric, reducing the working fluid in the dye concentration, so that one can reduce the amount of white, anti-staining agents, on the other help to improve white, anti-stick effect.
3.5 white, anti-stick agent and desizing enzymes when used with the bath white, anti-staining case
Table 12 and desizing enzymes when used with the bath white, anti-staining case
Temperature 50 ℃
Alone 4 3-4
With the same enzyme desizing bath 4 3-4
Amylase and 7658 with the bath 3 level 2-3
Note: The above direct Turquoise Blue GL,
Process 1: desizing enzymes: 2g / L,
Process 2: 7658 amylase 2g / L, NaCl 10g / L
Seen from Table 12, the use of different enzymes to anti-stick effect dialogue also has a great impact. Using the new desizing enzymes, without salt, so white, anti-staining agent TF-136 and use the same bath desizing enzyme, does not reduce white, anti-staining effect. 7658 The use of conventional amylase enzyme to add salt as an activator to increase the efficiency of activation of the enzyme, but the salt is a reactive dye at the same time accelerating agent, will accelerate the dye to dye the fabric, white, anti-staining effect of reducing . Therefore, in desizing can be used when the new desizing enzymes.
 
4 Plant Applications
4.1 Application example a factory
Fabric varieties: jeans, clothing
Processing equipment: sand washing machine
Each process is added:
TF-136 1.0 g / L
Results: white, anti-stick effect, denim clothing wear white effect, and can be endowed with a strong three-dimensional sense of denim clothing.
4.2 Application Example two factories
Fabric varieties: cotton yarn-dyed plaid
Processing equipment: long car width washing machine
Desizing formula: TF-136 2-3 g / L (a grid)

Keyword:Textiles, garments, printing, sand washing machine, weaving, fiber, printing and dyeing, yarn, washing machine

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