How to improve the color fastness of polyester thread dyeing! Now polyester fabric is more and more widely used in clothing in the market, so we pay more attention to the color fastness of polyester. Polyester color fast is related to its own physical and chemical properties. Polyester fiber itself has no reactive group, nor hydrophilic polar group, so it is difficult to dye with all kinds of charged dyes.
Polyester thread color fast is related to its own physical and chemical properties. Polyester fiber itself has no reactive group, nor hydrophilic polar group, so it is difficult to dye with all kinds of charged dyes. General polyester dyeing can choose so small molecules, weak polarity, poorly soluble in water and good compatibility of disperse dyes for polyester dyeing, the polyester fabric dyeing and finishing, the setting up after temperature generally far higher than the glass transition temperature of polyester fiber, aggravating polyester amorphous area chain activities, dye molecules and dyeing reverse heat moving scene, which reduces the color fastness, In the face of such problems, it is suggested to improve the fastness by improving the process or adding additives.
Steps:
Step 1: TERASIL Red WW-BFS;
The second step: it is recommended to use the reducing cleaning agent to handle for 20 minutes at 70-80 degrees;
The third step: the temperature of the reduction washing to 95 degrees, control the shaping temperature;
The fourth step: try adding 2 grams of caustic soda, 4 grams of reductive cleaning agent, 0.5 grams of oil soap to raise the temperature to 100 degrees.
The fifth step: consider the fastness difference caused by the similar compatibility of antistatic agent to dye in shaking process;
The sixth step: high temperature finalize the design and then make reduction treatment, low temperature finalize the design;
Conclusion:
1 To the special request of high color fastness cloth preferred high molecular weight dye, reduce color relocation, so as to improve color fastness. Especially for the sun, conflict and washing water, improve significantly.
2. Strengthen the reduction clean technology, reduce the shaping temperature, reduce the color relocation.
3 cooperate with spandex cleaning agent to reduce the color relocation of spandex. The softener with good performance is selected to reduce the damage of color fastness caused by the softener.
Matters needing attention:
1. Control the reduction cleaning temperature, time, should not be higher than 95 degrees, otherwise it will affect the fastness
2. Pay attention to the setting temperature, if it is low temperature type dye, the setting temperature will reduce its fastness
Post time: Jun-17-2022