The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 1984
Filed:
Feb. 14, 1983
Applicant:
Inventors:
Takemi Tokieda, Nara, JP;
Sadaharu Abeta, Toyonaka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ;
U.S. Cl.
CPC ...
8524 ; 8527 ; 8549 ; 8589 ; 8692 ; 8918 ;
Abstract
A reactive dye composition which comprises a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR1## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0, which is very readily soluble in water and aqueous alkali liquors, resistant to coagulation when prepared into a color paste for printing, and useful for dyeing or printing cellulose fiber materials yellow with a high color yield, particularly by a one-bath pad dyeing method or printing method.