Title: Varnish for printing inks and its method of preparation

Abstract: A printing ink varnish which comprises a mineral oil and a product prepared by adding an anionic surfactant to an acid sludge followed by neutralization with an aqueous solution of an alkali metal salt and then adding an inorganic polyvalent metal salt to the mixture to form polyvalent metal salts of the anionic surfactant and acid components of said sludge. A process for preparing the varnish is also disclosed.

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Inventors: Sugisaki, Hiroyuki (Tokyo, JA)
Nozue, Mitsuo (Kuwana, JA)
Ogawa, Hiroki (Tokyo, JA)

Application Number: 630683
Filing Date: 1975-11-10
Publication_date: 1977-07-26
Assignee: Taniguchi Petroleum Refining Company, Limited (Tokyo, JA); T. S. Chemical, Ltd. (Tokyo, JA)
Primary Class(es): 106/31.66 106/31.88, 106/31.89, 106/285, 106/311
Other Classes:
US Patent Ref:

999611	Aug, 1911	Walker et al.	260/504.
2491043	Dec, 1949	Hersberger	260/448.
2967782	Jan, 1961	Manley	106/32.
2980545	Apr, 1961	Shoemaker	106/285.

Other Refs:
Primary Examiner: Morris, Theodore
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier