![]() ![]() Original Assignee STATE CHANGSH CHEMICAL PHOTOGRAPHIC MATERIALS FACTORY Priority date (The priority date is an assumption and is not a legal conclusion. STATE CHANGSH CHEMICAL PHOTOGRAPHIC MATERIALS FACTORY Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 朱楚斌 Current Assignee (The listed assignees may be inaccurate. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number CN 87102050 Other languages Chinese ( zh) Google Patents Improve the method for ammonia developing rate of heavy-nitrogen printing paperĭownload PDF Info Publication number CN1030828A CN1030828A CN 87102050 CN87102050A CN1030828A CN 1030828 A CN1030828 A CN 1030828A CN 87102050 CN87102050 CN 87102050 CN 87102050 A CN87102050 A CN 87102050A CN 1030828 A CN1030828 A CN 1030828A Authority CN China Prior art keywords diazo ammonia compounds sensitization xanthine Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN1030828A - Improve the method for ammonia developing rate of heavy-nitrogen printing paper CN1030828A - Improve the method for ammonia developing rate of heavy-nitrogen printing paper ![]()
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