Wet-slippage of textile material and wet lubricant therefor
US5601746A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/921
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Aqueous dispersions (D) of a wax (W) dispersed in the aqueous phase by means of a dispersant (B), wherein in (D) the wax (W) is PA1 (A) an oxidized hydrocarbon wax or a mixture of oxidized hydrocarbon waxes PA1 or a mixture or (A) and at least one non-oxidized hydrocarbon wax (P), the acid number of which is.gtoreq.5, and the dispersant (B) is PA1 a non-ionogenic, anionic, cationic or amphoteric surfactant or a mixture of two or more of these surfactants, which displays an HLB.gtoreq.7, and the dispersion (D) optionally contains at least one protective colloid (C), at least one agent (E) for pH-adjustment, at least one antifreeze agent (F) and/or at least one preserving agent (D), but is substantially free of other waxes than (A) and (P) and of other surfactants than (B) and (C), are eminently suitable as wet lubricants that are very stable to temperature modifications and to high electrolyte concentrations, especially as occurring in pretreatment and in dyeing of cellulosic substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.