Warp sizing composition, sized warp strands and process

Details Warp sizing composition, sized warp strands and process Warp sizing composition, sized warp strands and process

1983-08-12

1985-07-23

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

65 31, 65 344, 252 88, 427178, 4273899, 428258, 428268, 428378, 428392, 524503, B32B 516

Patent

active

045308764

ABSTRACT:
Warp sizing compositions are used to treat textile yarn to withstand the abrasive forces encountered by the warp yarn during weaving. A warp sizing composition having poly(vinyl alcohol); and a second film forming polymer, which is water soluble, dispersible or emulsifiable and having a Tg of less than 70.degree. C., and an average particle size of less than 5 microns, and being dispersible with poly(vinyl alcohol); and water results in treated yarn having good flexibility, and abrasion resistance strength. The more flexible treated warp yarn encounters less damage during the slashing operation to result in improved weaving performance. The process for producing glass fiber strand yarn treated with the warp sizing composition involves forming the glass fibers, treating the glass fibers with a forming size, gathering the glass fibers into one or more strands, collecting the strands, drying the strands to remove enough moisture to enable the strands to be removed from the collected strand package, rewinding the strands, beaming a plurality of the rewound strands, treating the plurality of rewound strands from a beam with the warp sizing composition, drying the treated strands, splitting the dried treated strands and winding the split strands onto a beam.

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