Method of accelerating the drying of wet hydropohilic substrates
AssigneeSandoz Ltd.
InventorsTibor Robinson, Charles Voegtlin
Life of this patent
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Abstract
A process for accelerating the drying of a wet hydrophilic substrate, e.g. in a washing process, comprising the steps of (i) applying to the wet substrate by an exhaust process 0.05 to 1.0 per kg dry weight of substrate of a mixture comprising a cationic agent having affinity for the fibres and an emulsified polyethylene wax in an aqueous medium, and (ii) subsequently drying the substrate.
Claims27
A process for accelerating the drying of a wet hydrophilic fibrous substrate selected from the group consisting of textiles, skins, pelts and leather, which comprises the steps of
- (i) applying to the wet substrate by an exhaust process 0.05 to 1.0 g. per kg. dry weight of substrate of a mixture comprising
- (A) a cationic agent having affinity for the fibers, and
- (B) an emulsified paraffinic wax in an aqueous medium,
- said component (B) being in the form of an aqueous emulsion containing the paraffinic wax and an emulsifying agent suitable for emulsifying said wax, and,
- (ii) drying the thus-treated substrate.
A process for accelerating the drying of a wet hydrophilic fibrous substrate selected from the group consisting of textiles, skins, pelts and leather, which comprises the steps of
- (i) treating the wet substrate by an exhaust process in the bath containing a mixture of
- (A) a cationic agent having affinity for the fibers and
- (B) an emulsified paraffinic wax in an aqueous medium,
- said component (B) being in the form of an aqueous emulsion containing the paraffinic wax and an emulsifying agent suitable for emulsifying said wax, and said bath containing said mixture in an amount of 0.1 to 0.5 g. of active substance, including the emulsifying agent, per kg. dry weight of substrate, and
- (ii) drying the thus-treated substrate.
Dependencies are inferred from the claim text.