Process for manufacturing flame-retardant yarn
US4244692A · kind A · utility
1Cited by
18References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1978 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Jul 24, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/285
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system for ammoniating and curing flame-retardant impregnated single textile yarns by steps including impregnating the yarn with THPOH, drying the impregnated yarn, and ammoniating the THPOH-impregnated yarn by passing a single end of the yarn through a small tube leading into an ammoniation chamber wherein there is located a spool and means for rotating said spool for winding the ammoniated yarn onto the spool, the small tube being reciprocatable to traverse the length of the spool for uniformly winding the yarn on the spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.