Technical Article

How to choose a qualified softener?

1, Alkali resistance:
Softener x%
Na2CO3 5, 10, 15 g/L
At 35 ° C for 20 minutes, observe whether there is precipitation, oil spot. If there isn’t it indicates passed alkali stability.
 
2, High temperature stability:
Softener x%
Condition: 98 ° C for 20 minutes, observe whether there is precipitation, oil spot and other unstable phenomena. If there isn’t it indicates high temperature stability is passed.
 
3, Electrolyte stability:
Softener x% salt 5,10,15 g/L
Condition: 60 ° C for 20 minutes, observe whether there is precipitation, bleaching oil and other unstable phenomena. If there isn’t it indicates passed electrolyte stability.
 
4, Shear resistance stability:
Softener x %
High-speed shearing at room temperature 2000r/min, observing whether there is precipitation, drifting oil and other unstable phenomena. If there isn’t it indicates passed shearing resistance.
 
5, Anion surface viability:
Softener x% anionic auxiliary 1, 2, 5 g / L
After mixing at room temperature for 30 minutes, observe whether there is any precipitation,  drifting oil, etc. If there isn’t it indicates passed compatibility with anion.
 
6, Easy to stripe
After adding the softener to the dyed fabric, use a caustic soda + sodium hydrosulfite to strip dyed fabric, and re-dye. To observe whether there is uneven dyeing spot or strip. If there isn’t it indicates this softener can be strip off.
 
7, Application performance
The first point is to compare the softness, smoothness and bulkiness of the hand feel, the second is to test the effect of hydrophilicity after adding softener, and the third is to test whether there is yellowing.

沪ICP备18022358号 Copyright © 2018 ChemGeek