| 摘要 |
An aqueous fabric softening composition is described having its rheological properties of flow elasticity and viscosity capable of being readily modifie d as needed independently of each other to satisfy a consumer preference, said composition comprising: a) from about 0.01% to about 25%, by weight, of a cationic fabric softener; b) an effective amount of a mixture of cationic polymers capable of modifying the aforesaid rheological properties, said mixture comprising: (iii) from about 0.01% to about 90%, by weight, of a cationic linear homopolymer that is derivable from the polymerization of acrylic acid and/or methacrylic acid or a linear copolymer that is derivable from the polymerization of acrylic acid and/or methacrylic acid and acrylami de or methacrylamide, said homopolymer or copolyer having a molecular weight of from about 10,000 to about 30 million; and (iv) from about 10% to about 99.99%, by weight, of a cationic cross-linked polymer that is derivable from the polymerization of, from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide, and from 70ppm to 300ppm o f a difunctional vinyl addition monomer cross linking agent, the respective amounts of (i) and (ii) in said mixture being selected to provide the desire d rheological propertiesof viscosity and flow elasticity in said softening composition; and c) balance water.
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