The Year-book for Colorists and Dyers, Volume 81906 - Dyes and dyeing |
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Page 26
To determine whether an acid stronger than 78 per cent . ( the maximum specific gravity ) some water is added ; if the specific gravity rises it is stronger ...
To determine whether an acid stronger than 78 per cent . ( the maximum specific gravity ) some water is added ; if the specific gravity rises it is stronger ...
Page 49
This method consisted in reducing the dyestuff with zinc dust , and reoxidation by air and chromic acid . Whilst nitro , nitroso , and azo compounds were ...
This method consisted in reducing the dyestuff with zinc dust , and reoxidation by air and chromic acid . Whilst nitro , nitroso , and azo compounds were ...
Page 51
DILUTE ACETIC ACID ( 5 % ) . 5 c.c. glacial acetic acid . 95 c.c. water . DILUTE ALCOHOL ( 1 : 1 ) . 50 c.c. strong alcohol or methylated spirit .
DILUTE ACETIC ACID ( 5 % ) . 5 c.c. glacial acetic acid . 95 c.c. water . DILUTE ALCOHOL ( 1 : 1 ) . 50 c.c. strong alcohol or methylated spirit .
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 ...
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 ...
Page 55
Boil twice for one minute with 5 per cent . acetic acid . A. Much color is stripped - Basic dyestuff . Boil with hydrosulphite B. X. Decolorized .
Boil twice for one minute with 5 per cent . acetic acid . A. Much color is stripped - Basic dyestuff . Boil with hydrosulphite B. X. Decolorized .
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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