Low foaming, high weaving efficiency polyvinyl alcohol size composition
US4797127A · kind A · utility
2Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1988 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Mar 17, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2402
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aqueous size composition for cotton-containing textile yarn comprising in an aqueous solution PA0 (a) 100 parts polyvinyl alcohol PA0 (b) 2-15 parts hydrophobic waxy material PA0 (c) 0.2-5 parts ethylene oxide-propylene oxide surfactant which has a surface tension between about 37 and 48 dynes/cm as a 0.1% aqueous solution at 25.degree. C., and a foaming number less than about 20 (ml foam/g solution).degree. F. as a 7% aqueous polyvinyl alcohol solution containing 11.4 parts hydrogenated tallow wax and 2 parts surfactant per 100 parts polyvinyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.