Performance and application of high temperature non-yellowing softener ZK23

This article will introduce you in detail to a product different from the general finishing agent, ZK23 softener, which is a new type of quaternary ammonium salt softener. We test the whiteness of the fabric after different concentrations and temperatures of ZK23. The non-ionic softener and cationic softener were compared. The comparison results show that ZK23 is a softener that can withstand high temperature without yellowing.
3. Application test
3.1 Performance and indicators of ZK23 Appearance: milky white ionic: cation
PH value: 5.0 to 7.0
Solubility: heating results frozen 50 ° C disappearance stability:
3.2.1 The test of whiteness of fabric is tested according to GB/T 8425-1987, and it is carried out on the color measuring and matching instrument. The cloth is folded 4 times, measured 3 times, and averaged;
3.2.2 Padding process test fabric: pure cotton bleached fine cloth softener concentration: 50g / L and 60g / L

Process: one dip and one rolling, the rolling pressure is 1.96×10Pa, and then baked at 180°C, 220°C and 240°C for 30 seconds respectively. The whiteness of the finished fabric is tested with WSB-2 whiteness meter and calculated. Yellowing rate. The larger the absolute value of the whiteness change value, the larger the yellowing rate value and the higher the yellowing of the sample.
4. Results and Discussion Category Whiteness Change Value Yellow Change Rate%
blank
0
0
Non-ionic film A
-0.60
0.70
Zhenke's ZK23
-0.03
0
Domestic famous brand low yellow film B
-0.41
0.55
Fig4.1 180 °C × 30S drying yellowing test results (50g / L)
It can be seen from Fig.4.1 that when the concentration of the concentration of 50g/L is adjusted, the ZK23 softener of Zhenke is baked at a high temperature of 180 °C for 30 seconds, and the yellowing rate of the finished fabric is zero, lower than the non-ion. The film A is also lower than the low yellow cation film B produced by a well-known domestic manufacturer.

Category whiteness change value yellow change rate%
blank
0
0
Non-ionic film A
-0.60
1.15
Zhenke's ZK23
-0.04
0
Domestic well-known brand cationic film B
-0.41
1.58
Fig4.2 220 °C × 30S drying yellowing test results (60g / L)
It can be seen from Fig4.2 that when the concentration of the finishing agent is increased to 60g/L and the temperature is raised to 220°C, the fabric after ZK23 softener finishing still shows the general non-ionic softness. The agent and the low yellowing cationic film have unparalleled advantages, and the yellowing rate is still zero, which is significantly lower than that of the non-ionic film A, and far lower than the low yellowing cationic film B produced by a well-known domestic manufacturer. The above shows that ZK23 of Zhenke has a very small influence on fabric whiteness and has stronger anti-yellowing ability than non-ionic film. Its anti-yellowing is far superior to other manufacturers' quaternary ammonium salt cationic film.
Category whiteness change value

Yellow variability rate%
blank
-7.58
8.78
Zhenke's ZK23
-4.38
5.06
Fig4.3 240 °C × 30S drying yellowing test results (60g / L)
It can be seen from Fig4.3 that when the concentration of the finishing agent is kept at 60g/L, the temperature continues to rise to a high temperature of 240 °C for 30 seconds, at which time the yellowing rate of the blank cotton reaches 8.78%, and the vibration The yellowing rate of the fabric after the ZK23 softener finishing was only 5.06%, which not only did not reach the blank swatch yellowing value of 8.78%, but also significantly lower than the blank swatch yellowing value of 3.72%, indicating that ZK23 softener of Zhenke Not only can it achieve no yellowing at high temperature, but it can also effectively suppress yellowing of fabric after finishing. It is a new type of quaternary ammonium salt softener with excellent performance.
The above indicates that ZK23 has little effect on the whiteness of the fabric, and has the same anti-yellowing ability as the non-ionic film, and its anti-yellowing property is superior to ordinary cations and films.
5 Conclusion
1. The measured value of whiteness shows that the yellowing phenomenon depends on the finishing agent used, and has nothing to do with the cationic agent. The quaternary ammonium salt fabric softener ZK23 is a new type of fabric which can make the finished fabrics are baked at high temperature without yellowing. Softener.

2. The quaternary ammonium salt fabric softener ZK23 itself can inhibit the production of yellowing.
3. The color change performance of softener finishing fabric is an important indicator to reflect its quality. The fabric finished with fabric softener ZK23 not only has no yellowing at high temperature, but also inhibits the occurrence of yellowing itself. A dual-purpose softener for cloth white cloth. It solves the problem of large yellowing after finishing of light-colored fabrics for manufacturers. It is especially recommended for replacing non-ionic film and light-colored and white fabrics with high requirements for color change.

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