GB190702462A - Improvements in Sensitizing Bleaching-out Colours - Google Patents
Improvements in Sensitizing Bleaching-out ColoursInfo
- Publication number
- GB190702462A GB190702462A GB190702462DA GB190702462A GB 190702462 A GB190702462 A GB 190702462A GB 190702462D A GB190702462D A GB 190702462DA GB 190702462 A GB190702462 A GB 190702462A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halogen
- sensitizing
- hydrins
- bleaching
- act
- 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 - Lifetime
Links
Landscapes
- Detergent Compositions (AREA)
Abstract
2462. Smith, J. H., and Merckens, W. Feb. 3, 1906, [date applied for under Patents Act, 1901]. Void. [Published under Patents &c. Act, 1907.] Colour photography ; sensitized plates &c.-The following substances are used as sensitizers for bleaching-out colours employed in the bleaching- out process ; the halogen substitution products of the alcohols, aldehydes, ketones, and acids, and of the benzol derivatives ; bodies derived from the phenol ethers (anethol is however known to act as a sensitizer); the halogen hydrins (especially glycolchlorhydrin), and the clorine and bromine hydrins of glycerin. The action of the halogen hydrins increases in proportion to the amount of halogen in the molecule. While it is more advantageous to employ the phenol ethers in alcoholic solution in combination with peroxide of hydrogen for subsequent sensitizing, it is better to use the halogen hydrins in the emulsion, followed by an acid sensitizing - bath. The alcohols, acetones, benzols, and their homologues are preferably employed as solvents for the sensitizing-bodies, even though they should be soluble in water.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE190702462X | 1906-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190702462A true GB190702462A (en) |
Family
ID=32241120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190702462D Expired - Lifetime GB190702462A (en) | 1906-02-03 | 1907-01-31 | Improvements in Sensitizing Bleaching-out Colours |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190702462A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140947A (en) * | 1961-01-25 | 1964-07-14 | Ncr Co | Graphic data copy sheet and method of using it |
-
1907
- 1907-01-31 GB GB190702462D patent/GB190702462A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140947A (en) * | 1961-01-25 | 1964-07-14 | Ncr Co | Graphic data copy sheet and method of using it |
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