| 摘要 |
<p>PURPOSE:To control the degree of crystallization according to characteristics of a resin, by a method wherein a fabric woven from a plurality of continuous fibers is heated to a temperature not lower than the softening point of a thermoplastic resin, and a coated film of a thermoplastic resin is provided on the surface of the fabric to impregnate the fabric with the resin. CONSTITUTION:A thermoplastic resin is melted by an extruder, is extruded through a die 21 provided at the tip of the extruder, and is applied to the surface of a heated resin-coating roll 23. A woven fabric 11 is brought into contact with the roll thus coated with the resin, whereby the resin is infiltrated into gaps between the fibers of the fabric. The impregnation is achieved by passage of the coated film of the resin between the fibers of the fabric 11 to the back side of the fabric. The pressure with which the fabric is brought into contact with the roll is such that the fabric can be brought into contact with the surface of the roll while passing through the coated film of the resin. The fabric thus coated with the resin is pressed against one or more heated rolls 23, 24 to enhance the degree of impregnation, is then cooled, and is taken out. The temperature of the heated rolls is not lower than the softening point of the resin.</p> |
