Claims
- 1. A method for burning-in irradiated and developed offset printing plates, comprising the steps of:
- (a) coating at least one surface of an irradiated and developed offset printing plate with a burn-in gumming composition comprising an aqueous solution comprising water and from about 1 to 50% by weight of a water-soluble polymer or copolymer, wherein the polymer or copolymer comprises monomers selected from the group consisting of styrenesulfonic acid, methylstyrenesulfonic acid, vinylsulfonic acid, acrylamidopropanesulfonic acid, vinyl acetate, and the water-soluble salts thereof; and then
- (b) heating said printing plate for a sufficient time to effect burning-in.
- 2. A method as claimed in claim 1, wherein step (b) comprises heating said printing plate to a temperature of between about 150 to 300.degree. C to effect burning-in.
- 3. A method as claimed in claim 1, wherein step (b) comprises heating said printing plate to a temperature of between about 200 to 230.degree. C to effect burning-in.
- 4. A method as claimed in claim 1, wherein step (b) comprises heating said printing plate for about 0.5 to 10 minutes to effect burning-in.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3539992 |
Nov 1985 |
DEX |
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Parent Case Info
This application is a division of application Ser. No. 928,392 filed Nov. 10, 1986 now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1555233 |
Nov 1979 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
928392 |
Nov 1982 |
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