包装

Water-resistance diazonium photogelatin

It is used for the silk mesh with high thread. It has strong cover ability, can cover the grounding, but feels bad when printed on the clothes. Solvent-based diazonium photogelation applies to solvent-based ink, is mainly used for screen printing of advertising sign, ceramic decals paper, plastics, glass and metal products.
 

Using method

 
1.Prepare photogelatin Composition of photogelatin

photogelatin1000g+ diazonium photosensitizer 8-10g+water 50-100ml.

2.Process:

• Pour 8-10g of diazonium photosensitizer powder into 50-100ml water and mix them uniformly;
• Pour the uniformly mixed solution into 1000g photogelatin, then mix them uniformly;
• Lay it aside for 2-3 hours until froths have disappeared, then it can be taken in use.

3. Key points

• The amount of water should be according to the viscosity requirement of screen;
• The diazonium photosensitizer powder must be dissolved completely before pouring the photogelatin;
• Mix them in clockwise direction to avoid producing forth.

4. Attention

•  Guarantee period of photogelatin before being prepared is one year; and the optimum life of prepared photogelatin is about15 days, it can be kept for two months or more under low temp.
• Prepare the liquid following the ratio of diazonium photogelatin and diazonium photosensitizer according to need to avoid wasting.
• Please prepare the photogelatin in dark environment or under red light. Operating under sunlight is forbidden.

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