Crimping apparatus
US4019228A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Sep 10, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/122
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A filamentary strand of a thermoplastic nature is ejected from an ejection nozzle being entrained on a heated medium flow into a stuffing chamber structured on a circulating endless surface moving at a speed slower than the ejection speed and the stuffed filamentary strand is transported, being carried by the endless surface, towards a downstream outlet of the stuffing room in such a way that the yarn mass is gradually compressed during displacement toward the downstream outlet of said stuffing room. During the transportation either a free or a positive cooling is employed. The resultant filamentary strand is provided with random, bulky and round three-dimensional crimps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.