JPS571790A - Direct drawing type lithographic original plate - Google Patents

Direct drawing type lithographic original plate

Info

Publication number
JPS571790A
JPS571790A JP7477580A JP7477580A JPS571790A JP S571790 A JPS571790 A JP S571790A JP 7477580 A JP7477580 A JP 7477580A JP 7477580 A JP7477580 A JP 7477580A JP S571790 A JPS571790 A JP S571790A
Authority
JP
Japan
Prior art keywords
receiving layer
image receiving
binding agent
original plate
water
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.)
Pending
Application number
JP7477580A
Other languages
Japanese (ja)
Inventor
Haruo Hasegawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7477580A priority Critical patent/JPS571790A/en
Publication of JPS571790A publication Critical patent/JPS571790A/en
Pending legal-status Critical Current

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  • Printing Plates And Materials Therefor (AREA)

Abstract

PURPOSE: To obtain the captioned original plate whose quality is less scattered, in which on a water-resistant support is arranged an image receiving layer containing as major constituents an inorganic pigment and a specified binding agent, so that the hydrophilic and the water-resistant property of the image receiving layer are stabilized.
CONSTITUTION: As a binding agent is used a mixture including a polyvinyl alcohol having carboxyl groups, a carboxymethylcellulose and a polyamide epichlorohydrin resin. The image receiving layer containing as major constituents an inorganic pigment and the binding agent is arranged on a water-resistant support to obtain the lithographic original plate. The total amount of the three resins mentioned above in the binding agent in the combined binding agents should be preferably over 5% by weight. The amount of the inorganic pigment is suitable 40W90% by weight in the total image receiving layer.
COPYRIGHT: (C)1982,JPO&Japio
JP7477580A 1980-06-03 1980-06-03 Direct drawing type lithographic original plate Pending JPS571790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7477580A JPS571790A (en) 1980-06-03 1980-06-03 Direct drawing type lithographic original plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7477580A JPS571790A (en) 1980-06-03 1980-06-03 Direct drawing type lithographic original plate

Publications (1)

Publication Number Publication Date
JPS571790A true JPS571790A (en) 1982-01-06

Family

ID=13556993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7477580A Pending JPS571790A (en) 1980-06-03 1980-06-03 Direct drawing type lithographic original plate

Country Status (1)

Country Link
JP (1) JPS571790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118658A (en) * 1982-01-07 1983-07-14 Mitsubishi Paper Mills Ltd Production of laminated lithographic printing plate
JPS6072793A (en) * 1983-09-30 1985-04-24 Ricoh Co Ltd Original stencil for lithographic print

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118658A (en) * 1982-01-07 1983-07-14 Mitsubishi Paper Mills Ltd Production of laminated lithographic printing plate
JPH0469382B2 (en) * 1982-01-07 1992-11-06 Mitsubishi Paper Mills Ltd
JPS6072793A (en) * 1983-09-30 1985-04-24 Ricoh Co Ltd Original stencil for lithographic print

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