B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/101, 117/28,
B32B 5/08 (2006.01) A41F 9/00 (2006.01) D06C 29/00 (2006.01)
Patent
CA 1099208
ABSTRACT OF THE DISCLOSURE A method of manufacturing a padding cloth for belts, the cloth having a latent curvability property such that it can be deformed by differential shrinkage caused by heat treatment so that one of its side edges becomes concave and its opposite side edge becomes convex. A liquid fabric sizing composition is applied to a continuous belt-like cloth having thermal shrinkage rates which vary stepwise across the width of the cloth so as to increase toward a side edge of the cloth to impart the latent curvability property thereto. The cloth is then dried and moved into and through a heating device. The dried, sized cloth is moved into the heating device at a faster rate than the rate at which it is withdrawn from the heating device so that the cloth is in a relaxed state during its passage through the heating device The portion of the cloth having the lowest thermal shrinkage rate is thereby shrunk to the maximum extent in the heating device so that this portion is thermally stabilized and is not capable of further shrinkage, while the other portions of the cloth having higher thermal shrinkage rates remain not com- pletely thermally stabilized and capable of further shrinkage. Adhesive powder is then applied to an entire surface of the heat- treated, dried, sized cloth, and the adhesive powder is melted and pressed into the cloth to bond it to the cloth. The cloth is then cooled to solidify the adhesive, and wound up on a roll in a straight state.
297201
Michimae Nobuhiro
Michimae Ryuzo
Michimae Nobuhiro
Michimae Ryuzo
LandOfFree
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