Starch-polyvinyl alcohol composition as a textile size

Details Starch-polyvinyl alcohol composition as a textile size Starch-polyvinyl alcohol composition as a textile size

C - Chemistry, Metallurgy

08

L

8/93.24

C08L 3/08 (2006.01) D06M 15/11 (2006.01) D06M 15/333 (2006.01)

Patent

CA 1238154

ABSTRACT OF THE DISCLOSURE An improved size composition of a modified starch and polyvinyl alcohol especially useful as a textile size is disclosed. The modified starch is a hydroxyalkyl and tertiary amino alkyl starch with a D.S. of aminoalkyl groups between 0.02 to 0.30 and a M.S. of hydroxypropyl groups between 0.02 and 0.50. The ratio of polyvinyl alcohol: modified starch in the size composition varies between 1:9 and 9:1. The method of applying the size composition to yarn and the method of making the size composition are also disclosed. High amylose starch, as compared to common or waxy, is the preferred starch.

487412

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