Heat setting machine with sealing head
US7543463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2006 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A continuous heat set line for setting yarn, having spaced-apart, elongate, tubular entrance and exit cooling chambers interconnected by an elongate intermediate steam heat-setting chamber communicating therewith. The entrance and exit cooling chambers and the intermediate heat-setting chamber collectively define a single longitudinally-extending axis along the combined length thereof. Sealing heads seal the entrance and exit cooling chambers and the intermediate heat-setting chamber to a degree sufficient to maintain a pressurized condition within the heat-setting chamber. A yarn conveyor extends through the pretreatment chamber for conveying the yarn through the entrance and exit cooling chambers and the heat-setting chamber. At least one piston and cylinder assembly moves sealing rolls into and out of position relative to each other, while independently-operating springs urge the rolls together sufficiently to effect a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.