Process and apparatus for the continuous application of treating liquor on an absorptive, compressible material web
US4845791A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Apr 15, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and an apparatus for the continuous and controlled application of liquor on an absorptive, compressible material web such as textile webs, warp yarn layers or fleeces. One or more liquors are applied in amounts being comprised between the values of water retention capacity and saturation. The liquor containing web is passed through an equalizing device wherein the web is drawn through an equalizing nip or slit whose thickness is adjustable and smaller than the thickness of the incoming, liquor containing material web. The equalizing may be effected in the nip of two rollers. The liquor concentration in the web before and after the equalizing is statistically the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.