| 摘要 |
A process for the production of bias-oriented reinforcing fabrics for the manufacture of power transmission belts, hoses and the like. The fabric is initially woven on a high speed, flat shuttleless loom, then immersed in a warm liquid solution to soften the sizing. The fabric is then processed to displace one selvedge longitudinally relative to the other, to achieve the desired bias angle of the weft yarns, usually about 120/60 DEG to the warp yarns. After partial drying, and fine adjustment of bias angle in a weft straightener, the fabric is gripped at its selvedges by a clip tenter and retained with the desired bias orientation while being dried. The dry fabric is substantially stabilized in its desired bias orientation. The selvedge edges are then trimmed off hot knives and the trimmed fabric is collected on a roll for shipment to and use by the belt/hose manufacturer, where it is calendered with a rubber compound and banner cut into rhomboid-like sections. These are spliced in a known manner and slit into strips for incorporation in the ultimate product. Fabric processed according to the invention is greatly superior to the conventional in overall quality, uniformity, freedom from defects, etc. When using the fabric processed according to the invention, important reductions may be achieved in the labor component of the manufacture of reinforced hoses, belts, etc.
|
