PVA for pt/pd is Polyvinyl acetate or Polyvinyl alcohol

[Meditant]

Hello,

What is the PVA used in the pt/pd sensibiliser ?

Best regards

 

[Herzeleid]

Polyvinyl alcohol although sometimes referred as PVA, often confused with Polyvinyl acetate PVA. Using PVOH for short is better imo.
As far as I know, few of the pt/pd printers use PVOH as a thickener for emulsion.
Adding concentrated PVOH makes the pt/pd sensitizer more viscous and easy to apply to very absorbent thin papers like washi and gampi.

Regards
Serdar

 

[Meditant]

Thanks

Best regards