The Year-book for Colorists and Dyers, Volume 81906 - Dyes and dyeing |
From inside the book
Results 1-5 of 48
Page 52
HYDROSULPHITE B. Prepared by acidifying 200 c.c. of hydrosulphite A with 1 c.c. of glacial acetic acid . PERSULPHATE . A cold saturated solution of potassium persulphate . SODIUM ACETATE ( 5 % ) . 5 g . crystallized sodium acetate .
HYDROSULPHITE B. Prepared by acidifying 200 c.c. of hydrosulphite A with 1 c.c. of glacial acetic acid . PERSULPHATE . A cold saturated solution of potassium persulphate . SODIUM ACETATE ( 5 % ) . 5 g . crystallized sodium acetate .
Page 76
... can be used instead of the corresponding indophenols in the preparation of the said new sulphurized dyestuffs . ... which can be prepared by heating quinaldin , the homologues , or substituted derivatives thereof with esters of ...
... can be used instead of the corresponding indophenols in the preparation of the said new sulphurized dyestuffs . ... which can be prepared by heating quinaldin , the homologues , or substituted derivatives thereof with esters of ...
Page 79
This invention relates to the production of new products which are of use for the preparation of new coloring - matters . It is well known that beta - amido - alizarin can be condensed with glycerin in the presence of sulphuric acid ...
This invention relates to the production of new products which are of use for the preparation of new coloring - matters . It is well known that beta - amido - alizarin can be condensed with glycerin in the presence of sulphuric acid ...
Page 84
Although the azo coloring - matters prepared from a mono - substituted anilin and beta - naphthol disulpho - acid R in the form of their lakes are , as a rule , worthless , the azo coloring - matter prepared by combining diazotized para ...
Although the azo coloring - matters prepared from a mono - substituted anilin and beta - naphthol disulpho - acid R in the form of their lakes are , as a rule , worthless , the azo coloring - matter prepared by combining diazotized para ...
Page 93
The new coloring - matters are prepared by combining with 2 - naphthol - 3.6 - disulpho - acid a diazotized meta - nitro - amido - benzene which contains a methyl group in the para position to the amido group .
The new coloring - matters are prepared by combining with 2 - naphthol - 3.6 - disulpho - acid a diazotized meta - nitro - amido - benzene which contains a methyl group in the para position to the amido group .
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Common terms and phrases
acetic acid action added addition Agent or Name Alizarine alkali ammonia Anilin Anthracene apparatus assignor bath Black Blue body Boil Brilliant Brown carbonate CD CD CD cent chlorid Chrome color coloring-matters combination compounds conc consists containing cotton crystals Cyanine Dark dated Diamine Direct DISCHARGE dissolved Dye Method dyed dyestuff employed extra fabric Fast fibre gallons Germany Green heated hydrosulphite Indigo invention relates Lakes machine Maker manufacture material Math WGS means Methyl mixed mixture mordant Mz WGS Name of Dye obtained Orange oxidizing paste Patent PK WGS pounds powder preferably prepared present printing quantity reaction reducing salts Scarlet shades soda sodium soluble solution steam suitable Sulphur sulphuric acid temperature Thiogene treated Violet washing WCh WCh WGS WGS WGSCh wool Yellow yield York Ву