Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work – Work is organic material
Patent
1974-11-15
1976-06-08
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
Work is organic material
264 92, 264237, 264316, 425388, B29C 1704, B29C 2500
Patent
active
039623920
ABSTRACT:
Molding thermoformable textile fabric (knit, woven or otherwise), and particularly stretch fabric, into a permanent three-dimensional shape by vacuum-molding in a cavity in a vacuum mold, wherein flow of air through the fabric is blocked to enable it to be vacuum-formed by means of a layer of substantially air-impervious thermoformable sheet plastic material applied over the fabric. The plastic is heated to thermoforming temperature, the plastic and fabric are vacuum-formed in the mold, the molded plastic layer with the molded fabric thereon being removed from the mold and the molded plastic layer being utilized as a form for holding the molded fabric in its molded shape for a sufficient period of time to stabilize the fabric in its molded shape. The molded plastic layer is cooled within the mold via a flow of cooling air.
REFERENCES:
F. C. Flindt & J. P. Dougherty, "Molding of Knitted Fabrics," Knitted Outerwear Times, 6-1970, pp. 53-59.
Silbaugh Jan H.
Stahl-Urban Company
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