Concentrated dampening water composition for lithographic printi

Details Concentrated dampening water composition for lithographic printi Concentrated dampening water composition for lithographic printi

1992-05-28

1993-06-22

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

101451, C09K 318

Patent

active

052213307

ABSTRACT:
A concentrated dampening water composition for lithographic printing comprises a) 0.1 to 10% by weight of a hydrophilic polymeric compound having a film-forming ability; b) 0.01 to 15%, by weight of a pH buffering agent; c) 5 to 80% by weight of a water-miscible organic solvent having a boiling point of not less than 140.degree. C. and whose 1% by weight aqueous solution has a surface tension of not more than 60 dynes/cm; d), 0.05 to 10% by weight of a compound, for instance, represented by the following general formula (III); and e) 30 to 80% by weight of water:

REFERENCES:
patent: 4601974 (1986-07-01), Kita et al.
patent: 4731119 (1988-03-01), Toyama et al.
patent: 4734132 (1988-03-01), Yoshida
patent: 4854969 (1989-08-01), Bassemir et al.
patent: 4865646 (1989-09-01), Egberg
patent: 4996135 (1991-02-01), Toyama et al.
patent: 5064749 (1991-11-01), Matsumoto et al.
patent: 5106414 (1992-04-01), Kunichika et al.
WPIL Week 9117, 19 Mar. 1991, AN 91-122557 & JP-A-3 063 187 (Canon KK).

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