Treatment of fabrics in machine dryers
US4149977A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1978 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Jan 10, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/62
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Fabrics are treated in machine drying apparatus to reduce static electricity carried by the fabrics, soften the fabrics and improve other fabric properties. A reusable dispenser of solid or semi-solid fabric-conditioning agent is placed in the dryer drum and tumbled with the fabrics in the dryer thereby causing some of the fabric-conditioning agent to be transferred to the fabric. The fabric-conditioning agent comprises a fabric conditioner, a softening point modifier, and a viscosity modifier. When the dryer is heated, the heat of the dryer helps cause the fabric-conditioning agent to soften and assist in its distribution over the surface of fabric with which it is brought into tumbling contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.