Method for the use of hydrophobic bleaching systems in cold batch textile preparation
AssigneeThe Procter & Gamble Company
InventorsJiping Wang, Elizabeth Ann Eggert
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Abstract
A method for the treatment of a non-finished textile component in a cold batch process is provided. The method comprises the steps of treating a non-finished textile component in an aqueous bleaching solution of hydrogen and a hydrophobic bleach activator or hydrophobic peracid followed by a treatment time of from about 1 hour to about 15 hours at a temperature of 35° C. or less. Preferred bleach activators include the alkanoyloxybenzene sulfonates and in particular noanoyloxybenzene sulfonate. The method provides acceptable whiteness and superior fiber protection and fabric strength benefits in significantly reduced treatment times versus conventional.
Claims20
A method for the cold batch preparation of a non-finished textile component comprising the steps of providing a non-finished textile component, saturating said textile component with an aqueous bleaching solution comprising hydrogen peroxide and a hydrophobic bleaching agent, and allowing said bleaching solution to remain in contact with said textile component for a period of time between 1 and 16 hours at a temperature of less than about 35° C.
A method for improving the wettability loss of textile components comprising the steps of:
- a) providing an incoming non-finished woven fabric;
- b) saturating said fabric to an aqueous bleaching solution, said bleaching solution comprising a mixture of hydrogen peroxide and a hydrophobic bleach activator or a pre-formed hydrophobic activator, holding said bleaching solution to a temperature of less than about 35° C. and allowing said bleaching solution to contact said fabric for a period of time of from about 1 to about 15 hours.
A method for the cold batch preparation of a non-finished textile component comprising the steps of providing a non-finished textile component, saturating said textile component with an aqueous bleaching solution comprising hydrogen peroxide and a hydrophobic bleaching agent, and allowing said bleaching solution to remain in contact with said textile component at a temperature of less than about 35° C. for a period of time sufficient to provide said resultant textile component with a whiteness value on the CIE index of at least about 70.
Dependencies are inferred from the claim text.