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:
May. 03, 1994
Filed:
Nov. 19, 1991
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A fiber reactive dye composition which comprises (1) a reactive dye of the formula (I), and (2) at least one member selected from the group consisting of reactive dyes of the formulas (II) to (IV), the formulas being represented each in the free acid form as follows: ##STR1## wherein Z, Z' and Z' are each --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.1, --CH.sub.2 CH.sub.2 Z.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.3, respectively, wherein Z.sub.1, Z.sub.2 and Z.sub.3 are each a group capable of being split by the action of an alkali, and Q is --SO.sub.2 CH.dbd.CH.sub.2 located at o-, m- or p-position against the imino when the --SO.sub.2 Z in the formula (I) is located at o-, m- or p-position against the imino, respectively, provided that the reactive dye of the formula (I) is one having --CH.sub.2 CH.sub.2 Z.sub.1 as Z when the fiber reactive dye composition comprises the reactive dye of the formula (III), exhibits superior dye performance such as build-up property, solubility and durable stability, and is useful for dyeing or printing fiber materials or leather in a yellow color excellent in various fastness properties.