The Year-book for Colorists and Dyers, Volume 101908 - Dyes and dyeing |
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Results 1-5 of 77
Page 50
... dyestuff at the same time , the author saturated it with common salt . The basic dyestuffs are thus left on the fibre in the form of free color - bases which can then be readily stripped by boiling with dilute acetic acid , or ...
... dyestuff at the same time , the author saturated it with common salt . The basic dyestuffs are thus left on the fibre in the form of free color - bases which can then be readily stripped by boiling with dilute acetic acid , or ...
Page 51
... dyestuff is present . As already mentioned , many basic dyestuffs fixed upon a tannin mordant do not give the leuco compound upon reduction with hydrosulphite , or if the leuco compound is formed , it may pass into solution and thus ...
... dyestuff is present . As already mentioned , many basic dyestuffs fixed upon a tannin mordant do not give the leuco compound upon reduction with hydrosulphite , or if the leuco compound is formed , it may pass into solution and thus ...
Page 56
... dyestuffs are partially stripped by weak ammonia , and may thus give rise to the impression that they are acid colors . To avoid this error it is advisable to add a small piece of white cotton when carrying out the test . If the dyestuff ...
... dyestuffs are partially stripped by weak ammonia , and may thus give rise to the impression that they are acid colors . To avoid this error it is advisable to add a small piece of white cotton when carrying out the test . If the dyestuff ...
Page 58
... dyestuffs are rendered less sharp by this latter treatment . It is important to pay special attention to the cleanliness of the test tubes employed for this test , as the author has found ... dyestuff 58 Year - Book for Colorists and Dyers.
... dyestuffs are rendered less sharp by this latter treatment . It is important to pay special attention to the cleanliness of the test tubes employed for this test , as the author has found ... dyestuff 58 Year - Book for Colorists and Dyers.
Page 59
... dyestuff . Transfer to wool and boil with hydrosulphite B. Wool is permanently decolorized : Azo group . Chrys- oidine , Tannin Orange , Janus Yellow , etc. Wool is not decolorized . Boil cotton with hydrochloric acid ( 1:20 ) ...
... dyestuff . Transfer to wool and boil with hydrosulphite B. Wool is permanently decolorized : Azo group . Chrys- oidine , Tannin Orange , Janus Yellow , etc. Wool is not decolorized . Boil cotton with hydrochloric acid ( 1:20 ) ...
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Common terms and phrases
acetic Acid Violet Agent or Maker Agent or Name Alizarine Black Alizarine Blue Alizarine Red alkali ammonia Anilin Anthracene anthraquinone assignor AZO DYE bath bleaching Blue Black Blue G Boil Bordeaux Brilliant carbonate CD Direct cellulose cent Chemical chloride Chrome coloring matter compounds conc cotton CT Mz dated Decolorized diazo Dye Method dyestuff extra Fast Blue fibre formic acid Germany heating hydrochloric acid hydrosulphite Indigo invention relates inventor Klp CD Klp WGS liquid manufacture Math CD Diamine Math WGS meta-aminophenylglycin Methyl Violet Methylene Methylene Blue mordant Mz CD Dianil Mz Lakes Mz WGS Name of Dye Naphthol obtained Orange Orange G Oxazine oxide PK CD PK WGS Ponceau powder production Purpurine Safranine Scarlet shades soda sodium soluble solution specific gravity SS WGS suitable sulphide sulphonic sulphuric acid tannin Thiazine WGS Acid WGS Fast WGS Mz WGS WGS WGSCh wool Yellow G