GB213266A - Improvements in dyeing wool - Google Patents
Improvements in dyeing woolInfo
- Publication number
- GB213266A GB213266A GB7083/24A GB708324A GB213266A GB 213266 A GB213266 A GB 213266A GB 7083/24 A GB7083/24 A GB 7083/24A GB 708324 A GB708324 A GB 708324A GB 213266 A GB213266 A GB 213266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vat
- dyed
- indigo
- added
- acetic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Coloring (AREA)
Abstract
In dyeing wool with vat dyestuffs, in the course of the process there are added to the vat, which preferably contains ammonia and glue or other protective colloid, first an ammonium salt and then an acid or acid salt until the reaction is neutral or feebly acid. In examples, loose wool is dyed green by introduction into a vat containing glue, ammonia, hydrosulphite, indigo and Helindone yellow CG. vat. After 20 minutes ammonium sulphate is added and subsequently acetic acid. When the vat is exhausted the liquor is run off and fresh water introduced. The material is finally hydro extracted or oxidized in baskets. Wool cloth is dyed blue in a "Lindner apparatus" containing glue, ammonia, hydrosulphite and indigo. Subsequently, ammonium sulphate and then acetic acid are added through a dropping apparatus. Similarly, loose wool is dyed black in an "Obermaier apparatus" with Helindone black T vat solid, and sliver is dyed brown with Helindone brown CM vat, and a small proportion of indigo, bisulphite being used as an alternative addition to acetic acid. Worsted yarn is dyed light blue in an "Esser-apparatus" with indigo, ammonium acetate and acetic acid being subsequently added. Specifications 7829/00 and 8510/02 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE213266X | 1923-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB213266A true GB213266A (en) | 1925-01-01 |
Family
ID=5812313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7083/24A Expired GB213266A (en) | 1923-03-19 | 1924-03-19 | Improvements in dyeing wool |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB213266A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2420729A (en) * | 1944-03-30 | 1947-05-20 | Allied Chem & Dye Corp | Dyeing with indigoid vat dyestuffs |
US2450773A (en) * | 1944-03-30 | 1948-10-05 | Allied Chem & Dye Corp | Dyeing of wool with indigo dyestuffs |
-
1924
- 1924-03-19 GB GB7083/24A patent/GB213266A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2420729A (en) * | 1944-03-30 | 1947-05-20 | Allied Chem & Dye Corp | Dyeing with indigoid vat dyestuffs |
US2450773A (en) * | 1944-03-30 | 1948-10-05 | Allied Chem & Dye Corp | Dyeing of wool with indigo dyestuffs |
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