Concentrated black-and-white developer solution and its prepn

Application Number: 00109453
Application Date: 2000.06.26
Publication Number: 1332392
Publication Date: 2002.01.23
Priority Information:
International: G03C5/30
Applicant(s) Name: Inst. of Photochemistry, Chinese Academy of Sciences
Inventor(s) Name: Liu Xuan;Yang Lixian;Wang Changqi
Patent Agency Code: 31002
Patent Agent: li bai
Abstract The present invention relates to the field of photochemistry. The concentrated black-and-white developer solution consists of deionized water, antioxidant, solubilizer, developer, developing assistant, pH regulator, buffering agent, fog preventer and complexing agent. It is prepared through successive didsolution of the said components at 0-100 deg.C, preferably 60-100 deg.c. It has strong antioxidant capacity, excellent development performance, great information amount, long preserving life, and low cost.