Title: Etching method for forming images on granite material
Application Number: 97103587 Application Date: 1997.05.08
Publication Number: 1171330 Publication Date: 1998.01.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B41M3/06,B44C1/22,G03F7/004
Applicant(s) Name: Wan Dongying Address: 330008
Inventor(s) Name:
Attorney & Agent: ZHANG GAOXIANG
Abstract:
     A method for forming image on granite material by etching includes such steps as making negative film, making silk screen plate, printing protecting layer, etching and filling pigments, and features that said negative film is suitable for making screen plate, the photosensitive resist is prepared from gelatin, citric acid, ammonium bichromate and water, the etching liquid is prepared from nitric acid, hydrochloric acid, hydrofluoric acid and sulfuric acid, the developer is hot water at 80 deg. C or higher, and the ink is prepared from embossing ink and talc powder. Its advantages are same etching effect as the photo, lifelike image and rich gradations. It is also suitable to make ceramic or glass picture.
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