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Softener selection index items to be tested

Views: 0     Author: Site Editor     Publish Time: 2020-09-29      Origin: Site

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Softener selection index items to be tested

1. Alkali resistance stability:

Softener x%

Na2CO3 5, 10, 15 g/L

35for 20 minutes, observe whether there is precipitation or floating oil. No precipitation or floating oil indicates that the alkali resistance stability is better.

 

2. High temperature stability:

Softener x%

At 98for 20 minutes, observe whether there is any instability such as precipitation or oil floating. The absence of precipitation or oil floating indicates that the high temperature resistance is better.

 

3. Electrolyte resistance stability:

Softener x% Yuanming powder or table salt 5, 10, 15 g/L

60for 20 minutes, observe whether there is any instability such as precipitation or oil floating. If there is no precipitation or oil floating, it means that the stability of electrolyte resistance is better.

 

4. Shear resistance stability:

Softener x%

High-speed shearing at room temperature of 2000r/min. Observe whether there are unstable phenomena such as precipitation and oil floating. No precipitation or oil floating indicates that the shear temperature resistance is better.

 

5. Anion surface compatibility:

Softener x% Anionic additives 1, 2, 5 g/L

Leave it at room temperature for 30 minutes, and observe whether there is any instability such as precipitation or oil floating. The description of no precipitation or oil floating is more descriptive than the anionic surface activity.

 

6, easy to strip

After adding softener to the dyed fabric, discolor it with caustic soda + sodium sulfonate, and then re-dye to observe whether there is uneven dyeing or coloring. Colorless or uneven dyeing indicates that the softener is easy to peel off.

 

7. Application performance

The first is to compare the softness, smoothness and bulkiness of the hand feel. The second is to test the hydrophilicity of the softener added. The third is to test whether the whitening fabric has yellowing. The specific method can be developed by oneself.


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