Title:
ENVIRONMENTAL-FRIENDLY DEVELOPING AND FIXING WASHING LIQUID
Document Type and Number:
WIPO Patent Application WO/2020/093430
Kind Code:
A1
Abstract:
An environmental-friendly developing and fixing washing liquid, comprising a developer, a protective agent, an accelerator, and an inhibitor, and further comprising a defoaming agent, a dispersant, and a cellulose sodium salt. The developer is prepared from hydroquinone independently or by mixing metol with hydroquinone. The mass of metol and hydroquinone is 2-3 g and 5-12 g, respectively. In the process of preparing the developing and fixing washing liquid, the liquid can be effectively dispersed, thereby avoiding the condensing agglomeration in the liquid so that the prepared environmental-friendly developing and fixing washing liquid has good dispersibility and fluidity. Moreover, the manufacturing process is simplified, and the concentration of the disposition liquid can be measured after a primary disposition is completed. The disposition liquid can be effectively protected from contamination by means of vacuum processing, and the environmental-friendly developing and fixing washing liquid having different properties can be prepared according to different mass ratios in formulas.
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Inventors:
YUAN JIAN (CN)
Application Number:
PCT/CN2018/115597
Publication Date:
May 14, 2020
Filing Date:
November 15, 2018
Export Citation:
Assignee:
TIANJIN KANGHUA JIANYE MEDICAL MAT CO LTD (CN)
International Classes:
G03C5/30
Foreign References:
| CN101419393A | 2009-04-29 | |||
| CN101393396A | 2009-03-25 | |||
| CN101770186A | 2010-07-07 | |||
| CN1076034A | 1993-09-08 | |||
| EP0514070A1 | 1992-11-19 | |||
| CN1086021A | 1994-04-27 |
Attorney, Agent or Firm:
QINGDAO ZHIJIA INTELLECTUAL PROPERTY AGENCY FIRM (GENERAL PARTNERSHIP ) (CN)
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