Method for treating knitted fabrics containing cotton fibers with alkali hydroxides
AssigneeDaido-Maruta Finishing Co., Ltd.
InventorMamoru Ichihara
Life of this patent
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Abstract
A method for treating a knitted fabric containing cotton fibers with an alkali hydroxide, which comprises impregnating said fabric with an aqueous solution of an alkali hydroxide while continuously feeding it in the open form in the longitudinal direction, allowing the fabric to shrink in the longitudinal direction, then feeding it to a tenter while giving an overfeed, thereby to hold it to a given width, and then washing the fabric. The knitted cotton fabrics so treated have superior dimensional stability, especially dimensional stability in the widthwise direction, a deep silky luster, a soft bulky hand, and a superior dyeability.
Claims16
A method for continuously treating a knitted fabric containing cotton fibers with an alkali hydroxide to improve the dimensional stability thereof, which comprises
- a. impregnating said fabric with an aqueous solution of an alkali hydroxide while feeding it in the open form in the longitudinal direction;
- b. subjecting the impregnated fabric from step (a) to a compressive shrinking operation in the longitudinal direction while restricting the shrinkage in the widthwise direction;
- c. then before the strong swelling and shrinking of the fabric with the aqueous alkali hydroxide solution are completed, feeding the resulting fabric from step (b) to a tenter while giving an overfeed;
- thereby to hold it to a given width;
- and
- d. washing the fabric while maintaining it on the tenter.
Dependencies are inferred from the claim text.