The Year-book for Colorists and Dyers: Presenting a Review of the Year's Advances in the Bleaching, Dyeing, Printing and Finishing of Textiles, Volume 81906 - Dyes and dyeing |
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Page 49
... wool or silk fibre if sodium hydrosulphite is used as the reducing agent , and potassium persulphate as the oxidizing agent . Contrary to what might have been anticipated , the leuco compounds formed remain in great part attached to ...
... wool or silk fibre if sodium hydrosulphite is used as the reducing agent , and potassium persulphate as the oxidizing agent . Contrary to what might have been anticipated , the leuco compounds formed remain in great part attached to ...
Page 50
The following is the general behavior of the various chemical groups of dyestuffs upon animal fibres towards reduction and oxidation : Decolorized by Hydrosulphite . Color restored on Color not restored by air , but on oxidation ...
The following is the general behavior of the various chemical groups of dyestuffs upon animal fibres towards reduction and oxidation : Decolorized by Hydrosulphite . Color restored on Color not restored by air , but on oxidation ...
Page 52
HYDROSULPHITE A. A 10 per cent . solution of hydrosulphite NF ( Meister ) or hyrae- dite , i.e. , the formaldehyde compound of sodium hydrosulphite . This solution , which is slightly alkaline , is employed in most cases .
HYDROSULPHITE A. A 10 per cent . solution of hydrosulphite NF ( Meister ) or hyrae- dite , i.e. , the formaldehyde compound of sodium hydrosulphite . This solution , which is slightly alkaline , is employed in most cases .
Page 53
In making reduction tests , the sample is boiled for from one - quarter to one minute with the hydrosulphite , then rinsed well under the tap , and allowed to lie on white paper for an hour or so . With most dyestuffs which form air ...
In making reduction tests , the sample is boiled for from one - quarter to one minute with the hydrosulphite , then rinsed well under the tap , and allowed to lie on white paper for an hour or so . With most dyestuffs which form air ...
Page 55
Boil with hydrosulphite B. X. Decolorized . Color is not restored by air or by persul- phate . Azo Group No. 4 — Chrysoidine , Tannin Orange , Janus Yellow . Y. Not decolorized or only very slightly . Treat fibre with conc . H2S04 .
Boil with hydrosulphite B. X. Decolorized . Color is not restored by air or by persul- phate . Azo Group No. 4 — Chrysoidine , Tannin Orange , Janus Yellow . Y. Not decolorized or only very slightly . Treat fibre with conc . H2S04 .
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Common terms and phrases
acetic action added addition Agent alkali ammonia Anilin Anthracene apparatus assignor bath Black Blue body Boil Brilliant Brown carbonate CD Direct cent chlorid Chrome color coloring-matters combination compounds conc consists containing cotton crystals Cyanine Dark dated Diamine DISCHARGE dissolved Dye Method dyed dyestuff employed extra fabric Fast fibre gallons Germany Gravity Green heated hydrosulphite Indigo invention relates Lakes machine manufacture material Math CD Math WGS means Methyl mixed mixture mordant Mz CD Mz WCh 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 Specific steam suitable Sulphur sulphuric acid temperature Thiogene treated Violet washing WCh Alizarine WGS Acid WGSCH wool Yellow yield York
Bibliographic information
| Title | The Year-book for Colorists and Dyers: Presenting a Review of the Year's Advances in the Bleaching, Dyeing, Printing and Finishing of Textiles, Volume 8 |
| Contributors | Harwood Huntington, Herman A. Metz |
| Published | 1906 |
| Original from | the University of Michigan |
| Digitized | 29 May 2007 |
| Export Citation | BiBTeX EndNote RefMan |