Process for sizing spun cotton yarns
AssigneeExxon Chemical Patents Inc.
InventorsMichael L. McAbee, Donald H. Shomake
Life of this patent
Estimating the term…
Abstract
This invention is to a process for sizing spun cotton yarns, especially dyed spun cotton yarns. The process entails treating a cotton-containing yarn with a solution polyacrylamide polymer. The use of this polymer system with a spun cotton yarn has been discovered both to overcome the previous excessive brittleness which had precluded use of polyacrylamide polymers as a size and to produce a fabric which can be overdyed without prior removal of the size.
Claims9
A process for sizing a spun cotton yarn substrate comprising applying to the substrate an aqueous solution consisting essentially of a solution polymerized polyacrylamide homopolymer which has a viscosity of about 400 to 900 cps at 20% solids and thereafter drying the treated substrate, said homopolymer being applied in an amount sufficient to impart comprising abrasion resistance to the yarn while being capable of being removed from the yarn by aqueous washing.
Dependencies are inferred from the claim text.