JPS5729495A - Protective film forming liquid for original plate - Google Patents

Protective film forming liquid for original plate

Info

Publication number
JPS5729495A
JPS5729495A JP10573080A JP10573080A JPS5729495A JP S5729495 A JPS5729495 A JP S5729495A JP 10573080 A JP10573080 A JP 10573080A JP 10573080 A JP10573080 A JP 10573080A JP S5729495 A JPS5729495 A JP S5729495A
Authority
JP
Japan
Prior art keywords
original plate
purlin
dextrin
protective film
film forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10573080A
Other languages
Japanese (ja)
Other versions
JPS609918B2 (en
Inventor
Shuji Kitamura
Fumio Fujita
Kazuya Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hayashibara Seibutsu Kagaku Kenkyujo KK
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Hayashibara Biochemical Laboratories Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd, Hayashibara Biochemical Laboratories Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP55105730A priority Critical patent/JPS609918B2/en
Publication of JPS5729495A publication Critical patent/JPS5729495A/en
Publication of JPS609918B2 publication Critical patent/JPS609918B2/en
Expired legal-status Critical Current

Links

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  • Printing Plates And Materials Therefor (AREA)

Abstract

PURPOSE: To prevent pin holes from occurring and to improve coating nature by a method wherein the mixed liquid of membraneous purlin and watersoluble dextrin are used as protective film forming liquid for an original plate.
CONSTITUTION: Purlin is made up of trimer of glucose, that is, malttriose as units and is a linear macromolecular copolymer repeatedly bonded by α-1, 6 bonding different from said trimer. On the other hand, dextrin is made up of starch partially decomposed by acid or enzeme and saccharides different in the polymerization degree according to the degree of decomposition. Purlin and dextrin are mixed at the rate of 20:80W80:20 and coated in the form of acqueous solution mixed with antiseptics and chelate agent. The original plate has a film excellent in coating nature, free from pin holes and a printing finish free from dirtiness in the nonimage area.
COPYRIGHT: (C)1982,JPO&Japio
JP55105730A 1980-07-30 1980-07-30 Lithographic protective film forming liquid for printing Expired JPS609918B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55105730A JPS609918B2 (en) 1980-07-30 1980-07-30 Lithographic protective film forming liquid for printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55105730A JPS609918B2 (en) 1980-07-30 1980-07-30 Lithographic protective film forming liquid for printing

Publications (2)

Publication Number Publication Date
JPS5729495A true JPS5729495A (en) 1982-02-17
JPS609918B2 JPS609918B2 (en) 1985-03-13

Family

ID=14415403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55105730A Expired JPS609918B2 (en) 1980-07-30 1980-07-30 Lithographic protective film forming liquid for printing

Country Status (1)

Country Link
JP (1) JPS609918B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330217U (en) * 1989-07-27 1991-03-25

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131503A (en) * 1974-09-09 1976-03-17 Fuji Photo Film Co Ltd HEIBANINSATSUBANYOHANMENHOGOZAI
JPS5256603A (en) * 1975-10-31 1977-05-10 Sumitomo Chemical Co Liquid of forming protection film for lithographic press plate
JPS52134502A (en) * 1976-05-03 1977-11-10 Hoechst Co American Finishing emulsion for lithographic printing plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131503A (en) * 1974-09-09 1976-03-17 Fuji Photo Film Co Ltd HEIBANINSATSUBANYOHANMENHOGOZAI
JPS5256603A (en) * 1975-10-31 1977-05-10 Sumitomo Chemical Co Liquid of forming protection film for lithographic press plate
JPS52134502A (en) * 1976-05-03 1977-11-10 Hoechst Co American Finishing emulsion for lithographic printing plate

Also Published As

Publication number Publication date
JPS609918B2 (en) 1985-03-13

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