Application
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Others |
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Photo sensitive resin for screen printing plate
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There are several formulations of photosensitive resins for screen printing plate. Here is the two different formulations using "KURARAY POVAL".
| CASE I |
| a) PVA-217 (20% solution) |
60 parts |
| b) PVAc emulsion (50% solid content) |
40 parts |
| c) Ammonium dichromate |
1 parts |
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| CASE II |
| a) PVA-217 (20% solution) |
60 parts |
| b) PVAc emulsion (50% solid content) |
40 parts |
| c) Condensation products of p-Diazo-diphenyl-amine-formaldehyde |
1.5 parts |
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In both cases, "KURARAY POVAL" becomes hard by crosslinking with above component c) by irradiation of ultraviolet ray.
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