Performance and Application of ZK23 Softener ZK23 without Yellowing at High Temperature

This article will give you a detailed description of a product that is different from the general finish agent, ZK23 softener, which is a new type of quaternary ammonium softener. We have tested the results of the fabric whiteness after different concentrations of ZK23 and different temperatures. Non-ionic softeners and cationic softeners were compared and the results showed that ZK23 is a softener that can withstand high temperatures without yellowing.
3. Application test
3.1 Performance and Specifications of ZK23 Appearance: Milky Cream Ionicity: Cation
PH value: 5.0 to 7.0
Solubility: Heated Freeze 50°C Disappearing Stability:
3.2.1 The test of fabric whiteness is carried out according to GB/T 8425-1987, and is performed on a color measurement and color matching instrument. The cloth is folded four times and measured three times. The average value is obtained.
3.2.2 Padding Process Test Fabric: Cotton Bleaching Softener Concentration: 50g/L and 60g/L

Process flow: one dip and one roll, rolling mill pressure 1.96×10Pa, then baked at 180°C, 220°C, 240°C for 30 seconds respectively, and the whiteness of the finished fabric was measured with a WSB-2 type whiteness meter and calculated Yellowing rate. The greater the absolute value of the change in whiteness, the greater the yellowing rate and the higher the yellowing of the sample.
4. Results and Discussion Category Whiteness Change Yellowing Rate %
blank
0
0
Non-ionic film A
-0.60
0.70
Zhenke ZK23
-0.03
0
Well-known domestic brands low yellow film B
-0.41
0.55
Fig4.1 180°C×30S drying yellowing test results (50g/L)
From Fig4.1 it can be seen that when the finishing concentration is 50g/L, Zhenke ZK23 softener is bake for 30 seconds at a high temperature of 180°C. After finishing, the yellowing rate of the fabric is zero, which is lower than that of non-ionic. The film A is also lower than the low yellow cation film B produced by a well-known domestic manufacturer.

Category Whiteness Change Yellowing Rate %
blank
0
0
Non-ionic film A
-0.60
1.15
Zhenke ZK23
-0.04
0
Domestic famous brand cationic film B
-0.41
1.58
Fig4.2 Results of drying yellowing test at 220°C×30S (60g/L)
From Fig4.2 it can be seen that after the finishing agent concentration is increased to 60g/L, Zhenko ZK23 softener finished fabric still shows general non-ionic softness after temperature rise to 220°C for 30 seconds. The agent and low yellowing cationic film have no comparative advantage, and their yellowing rate is still zero, which is obviously lower than that of nonionic film A, and is far lower than that of low yellowing cationic film B produced by a well-known domestic manufacturer. The above shows that ZK23 from Zhenke has a minimal effect on the whiteness of the fabric and has stronger yellowing resistance than the nonionic film. The anti-yellowing properties of the ZK23 are much better than those of other manufacturers' quaternary ammonium cation films.
Category whiteness change

Yellowing rate %
blank
-7.58
8.78
Zhenke ZK23
-4.38
5.06
Fig4.3 Drying yellowing test results at 240°C×30S (60g/L)
From Fig. 4.3, we can see that when the concentration of the finishing agent is kept at 60g/L, the temperature continues to rise to 240°C and the temperature rises to 30°C. After that, the blank cotton cloth has a yellowing rate of 8.78%. The yellowing rate of ZK23 softener finished fabrics was only 5.06%, not only did not reach a blank fabric sample yellowing value of 8.78%, but also significantly lower than the blank fabric sample yellowing value of 3.72%, indicating Zhenke ZK23 softener Not only at high temperatures can be achieved without yellowing, but also can effectively inhibit the yellowing problem after finishing. It is a novel quaternary ammonium salt softener with excellent performance.
The above shows that ZK23 has little effect on the whiteness of the fabric and has the same anti-yellowing ability as the nonionic film. The anti-yellowing properties of the ZK23 are better than ordinary cations and films.
5 Conclusion
1. The measured value of whiteness shows that the yellowing phenomenon is determined by the finishing agent used, but has nothing to do with the cationic agent. The quaternary ammonium salt fabric softener ZK23 is a new type that enables the finished fabrics to be baked at high temperature without yellowing. Softener.

2. The quaternary ammonium fabric softener ZK23 itself can inhibit yellowing.
3. The bleaching performance of softener finishing fabrics is an important indicator reflecting its quality. Fabrics finished with fabric softener ZK23 not only have no yellowing at high temperatures, but also can inhibit the production of yellowing. Cloth white cloth dual softener. For the manufacturer to solve the problem of yellowing after light-colored fabric finishing, it is especially recommended to replace non-ionic film and light-colored, white fabrics that require high color change.

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