The Year-book for Colorists and Dyers, Volume 81906 - Dyes and dyeing |
From inside the book
Results 1-5 of 52
Page 53
If the color does not return the pattern is heated to boiling in a test - tube with a little water , and potassium persulphate is added drop by drop , carefully avoiding an excess . If this also fails to cause any return of color ...
If the color does not return the pattern is heated to boiling in a test - tube with a little water , and potassium persulphate is added drop by drop , carefully avoiding an excess . If this also fails to cause any return of color ...
Page 77
The inventor claims that new sulphurized dyestuffs are formed if mixtures of meta - toluylenediamin and diformyl - para - phenylepediamin are heated together with sulphur at high temperatures . The reaction product is , especially if ...
The inventor claims that new sulphurized dyestuffs are formed if mixtures of meta - toluylenediamin and diformyl - para - phenylepediamin are heated together with sulphur at high temperatures . The reaction product is , especially if ...
Page 94
On employing acid anhydrids or acid chlorids the acidyl derivatives at first produced must be heated with acids in order to form the heterocyclic nucleus . The new dyestuffs are in the shape of their alkaline salts from red to dark ...
On employing acid anhydrids or acid chlorids the acidyl derivatives at first produced must be heated with acids in order to form the heterocyclic nucleus . The new dyestuffs are in the shape of their alkaline salts from red to dark ...
Page 95
... yellow and obtained , for instance , by the action of hydrochloric acid and alcohol on leuco acridin - yellow may be transformed into orangered dyestuffs if heated in an open vessel with formaldehyde in concentrated sulphuric acid .
... yellow and obtained , for instance , by the action of hydrochloric acid and alcohol on leuco acridin - yellow may be transformed into orangered dyestuffs if heated in an open vessel with formaldehyde in concentrated sulphuric acid .
Page 99
... and with a red color , but more gradually with a yellowish - green and later a blue color , a behavior which must be ascribed to the diazonaphtholsulphonic acid which indeed is characterized by great stability toward heat ...
... and with a red color , but more gradually with a yellowish - green and later a blue color , a behavior which must be ascribed to the diazonaphtholsulphonic acid which indeed is characterized by great stability toward heat ...
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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 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 soap soda sodium soluble solution Specific Gravity steam suitable Sulphur sulphuric acid temperature Thiogene treated Violet washing WCh WCh WGS WGS WGSCh wool Yellow yield York