Fabric softening detergent compositions containing smectite clays having a lattice charge deficiency
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorsIan R. Kenyon, Robin S. Heslam, William D. Emery, Hermes J. Murakami
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Abstract
A detergent composition for washing and softening fabrics comprising at least one detergent active material and, as a fabric softening agent, a smectite clay mineral which is a 2:1 layer phyllosilicate possessing a lattice charge deficiency in the range of 0.2 to 0.4 g equivalents per half unit cell.
Claims4
A detergent composition for washing and softening fabrics consisting essentially of from 2% to 50% by weight of at least one detergent active material and, as a fabric softening agent, a semctite clay mineral which is a 2:1 layer phyllosilicate possessing a lattice charge deficiency in the range of 0.2 to 0.4 g equivs. per half unit cell, and which falls into the formula:
- (Si.sub.4-y Al.sub.y) (Al.sub.2-a-b M.sup.III.sub.a N.sup.II.sub.b)O.sub.10 (OH).sub.2 X.sup.I.sub.y+b
- in which
- M.sup.III is a trivalent metal ion,
- N.sup.II is a divalent metal ion,
- X.sup.I is a balancing exchangeable cation,
- y is O or a positive number less than 4, and
- a and b are positive numbers less than 2 such that y+b is from 0.2 to 0.4.
Dependencies are inferred from the claim text.