what causes the viscosity change of printing paste

the reasons for the change in viscosity of printing paste may be as follows:
1. the original paste in the color paste is spoiled;
2. the color paste is left for too long;
3. improper storage method (high temperature place or contact with air);
4. the preparation method of the original paste is wrong;
5. improper coordination of the original paste;
6. the dye in the color paste is not compatible with the original paste;
7. the additives in the color paste have poor compatibility with the original paste.

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