| 摘要 |
<p>1275679 Bonded fibre fabrics; lop forming machine RHODIACETA 26 June 1970 [27 June 1969] 31213/70 Headings DIN and D1R By means of tenters, tensioning means and rollers a tow formed from continuous manmade filaments is spread and fed under tension between smooth, high friction rubber coated rollers 1, 2. Roller 2 rotates at a higher peripheral speed than roller 1, and simultaneously reciprocates axially through amplitude a, under the influence of crank 4 and ball thrust housing 6. The sheet is received, without tension, upon a conveyor belt, passed into a spraying chamber to be sprayed on both sides with binder, and heated to cure the binder. The filaments, which may be crimped in a stuffing box, may comprise nylon 6, 6.6, 6.10 or 11, polypropylene, polyethylene terephthalate, vinylic polymers, polyacryonitrile or polyacrylonitrile containing copolymers.</p> |
