Apparatus for controlling the absorption of one or more color components in a dyeing fluid
US4374322A · kind A · utility
3Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1980 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Apr 24, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The temperature of the dye bath in a vat or trough (1) is controlled in dependence on absorption change, which is photometrically sensed. A command value of dye acceptance speed related to temperature of the dye within the vat is provided, compared with actual temperature, and a control signal is derived which, in turn, controls a heat exchanger supplied, selectively, with a heating or cooling medium in order to control dye acceptance of at least one predetermined dye component of the bath by the material therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.