公开(公告)号：US3310551A

公开(公告)日：1967-03-21

申请号：US27617863

申请日：1963-04-29

Applicant: ALLIED CHEM

Inventor： MCLEOD JOHN H

IPC: C09B43/06 ,  C09B56/04 ,  D06P1/06

CPC classification number: C09B56/04 ,  C09B43/06 ,  D06P1/06

公开(公告)号：US3898033A

公开(公告)日：1975-08-05

申请号：US36968273

申请日：1973-06-13

Applicant: ALLIED CHEM

Inventor： MCLEOD JOHN H

IPC: C09B33/056 ,  C09B67/26 ,  D06P3/60 ,  D21H21/28 ,  D06P1/06

CPC classification number: D21H21/28 ,  C09B33/056 ,  C09B67/0073 ,  D06P3/6008 ,  Y10S8/918 ,  Y10S8/919 ,  Y10S534/01

Abstract: Dyestuffs of the formula

WHEREIN X1 and X2 represent hydrogen, methyl or methoxy and the alkali metal salts thereof. Solutions of these dyes containing up to about 25 weight percent dissolved dye which are characterized by low viscosity and stability to gelation and dye precipitation are useful as homogeneous aqueous dye concentrates for dyeing paper and other cellulosic fibers in fast orange to red shades.

Abstract translation: 式WHYEIN X1和X2代表氢，甲基或甲氧基的染料及其碱金属盐。 含有高达约25重量％溶解染料的这些染料的溶液，其特征在于具有低粘度和稳定性以凝胶化和染色沉淀的特征，可用作用于以快速橙色至红色色调染色纸和其它纤维素纤维的均匀水性染料浓缩物。