Fountain solution and fountain solution concentrates
AssigneeBASF SE
InventorsHiroyasu Kanno, Yoshihisa Fujii, Motoyuki Setoguchi, Masahiko Shinnishi
Life of this patent
Estimating the term…
Abstract
The present invention relates to a fountain solution concentrate for offset printing comprising tert.-amyl alcohol. The present invention also refers to a fountain solution obtained by the addition of water to the fountain solution concentrate. Another aspect of the present invention is a method for offset printing wherein a fountain solution according to the present invention is applied to the image plate to desensitize the non-image areas of the image plate and the printed media obtainable thereby.
Claims21
A fountain solution concentrate comprising tert.-amyl alcohol.
A fountain solution comprising at least one selected from the group consisting of:
- 0.3 to 10% by weight of tert.-amyl alcohol;
- 70 to 99.5% by weight of water;
- 0.05 to 3% by weight of an auxiliary-wetting solvent;
- 0.05 to 3% by weight of a desensitizing agent;
- 0.05 to 3% by weight of a pH-adjusting agent;
- 0.01 to 0.5% by weight of a chelating agent;
- 0.05 to 3% by weight of a surfactant;
- and
- 0.05 to 3% by weight of another additive,
- based on the weight of the fountain solution.
9-10. (canceled)
Dependencies are inferred from the claim text.