Method for the elimination of circumferential stress cracks in s

Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...

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2642103, 2642893, 2642905, B29G 500

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active

043754449

ABSTRACT:
A method for the elimination of circumferential stress cracks that occur during production of spun polyesters is provided. The cracks are eliminated by the use of an organic solvent miscible with the lubricating emulsion applied during the finish operation before draw twisting of the spun polyester. The organic solvent may be kerosene or mineral oil or solutions containing the same.

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