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The Characteristics of A Good Softener

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1. Alkali resistance stability:
Softening agent x %
Na2CO3 5, 10, 15 g/L
35 °C for 20 minutes, to observe whether there is is precipitate, floating oil, no precipitation and floating oil alkali stability is better.
2. High temperature stability:
Softening agent x %
98 °C for 20 minutes, to observe whether there is a precipitate, floating oil such as unstable phenomenon, no precipitation and floating oil resistant to high temperature stability is better.
3. Stability of electrolyte resistance:
Softening agent x %
Sodium sulfate or table salt 5, 10, 15 g/L
60 °C for 20 minutes, to observe whether there is a precipitate, floating oil such as unstable phenomenon, no precipitation and the specification of floating oil resistance to electrolyte stability is better.
4. Shearing stability:
Softener x %
At room temperature, shear at a high speed of 2000r/min. Observe whether there is precipitation, floating oil and other unstable phenomena. The absence of precipitation and floating oil indicates good shear temperature resistance.
5. Anion surface activity compatibility:
Softening agent x %
Anionic preference 1, 2, 5 g/L
At room temperature for 30 minutes, observe whether there is precipitation, bleaching oil and other unstable phenomena, no precipitation and bleaching oil description and anion surface activity is better.
6. Low temperature stability:
Will softener in 5 °C, 10 °C, 15 °C (or lower) more than 24 h, observe whether there is oil demulsification or floating phenomenon.
(due to the low temperature in winter in north China, the demulsification of silicone oil or the stability of surfactant will be reduced in the process of low-temperature storage or transportation, such as the turbidity of transparent blue emulsion and the white oily spray on The inner wall of the packaging barrel of softener.)
7. Easy peeling:
After adding softener to the dyed fabric, the color was extracted with caustic soda + insurance powder, and then the fabric was dyed again to observe whether there was uneven dyeing or uneven dyeing phenomenon. Colorless flowers or uneven dyeing indicated that the softener was easy to Be peeled off.
8. Application performance test:
① Three degrees of hand feel:
Softness, smoothness, undulateness
② Hydrophilic effect;
③ Yellowing;
④ Washing resistance;
⑤ whether it affects the fastness of dyeing;
⑥ Does it smell bad?

⑦ Whitening agent compatibility, etc.


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