GB875118A - Pleated fabrics - Google Patents

Abstract

875,118. Laminates; coated laminated materials; fabrics, finishing; craping. DU PONT DE NEMOURS & CO., E. T. March 11, 1958 [March 13, 1957], No. 7868/58. Classes 42 (1) and 140. [Also in Groups VII and IX] A pile or other fabric comprises a pleated facing 1, Fig. 11, and a pleated base 2 secured together along peaks 3 of the pleats by interweaving, sewing, stapling or adhesive. There may be a facing on both sides of the base. When the facing is a fabric, its pleats may be disposed transversely of the pleats in the base. When the face is pile, it may be cut or uncut. Pleating may be effected by inserting slats 7 between the face 1 and backing 2 and turning them up on edge as shown in Fig. 9, the fabric being heatset before the slats are removed. Or the fabric may be pleated' by feeding it into a stuffing-box. Alternatively, the pile and base may be pleated in the same direction by blades 14, 141 as shown in Fig. 14, heat set in a chamber 16, and passed round a perforated roller 17 which blows air through the pile 1 to reverse the pleats in the base 2. As shown in Fig. 5, the fabric may be woven with draw-cords 4 which are delivered at a slower rate than the pile warp 1 and the warp of the base 2; the fabric passes between knurled rollers which slide it along the draw-cords to produce the pleats. The fabric may be heat-set in the loom and the draw-cords may be withdrawn or destroyed, or the draw-cords may be anchored to the base by transverse stripes of adhesive at intervals corresponding to the desired length of a piece of fabric. Instead of running through the peaks 3 of the base, the draw-cords 4 may run through the peaks 5<SP>1</SP> or intermediately of the peaks' 3 and 5<SP>1</SP>. Wires fixed in the loom may be used instead of drawcords, the fabric being heat-set before it slides off them. A heat-set fabric having no drawcords 4 may be stretched flat and wound on a roll for transport or may have a pattern printed on it, release of the tension allowing it to revert to the pleated state. As shown in Fig. 11, the pleats of the back of the skeleton may be filled by coating with an elastomeric material 8, e.g. natural or synthetic rubber, rubber latex, sponge rubber, vinyl foam, polyurethane foam or any other material, e.g., thermoplastic or thermosetting resins, which have high elasticity. A backing sheet 9 may then be applied.