Fabric conditioning compositions
View Patent ↗A solid fabric conditioning composition comprises a cationic fabric softening agent, one or more carrier materials, perfume and a deposition aid for depositing the cationic fabric softening agent onto fabrics during a laundry treatment operation wherein the deposition aid is citric acid or a salt of citric acid.
1. A solid fabric conditioning composition comprising:
(a) from 15 to 75 wt % of one or more cationic fabric softening agents;
(b) from 25 to 85 wt % of urea carrier materials;
(c) perfume; and
(d) from 0.1 to 5 wt % of a deposition aid for depositing the cationic fabric softening agent onto fabrics during a laundry treatment operations; wherein the deposition aid is citric acid or a salt of citric acid; and
(e) further comprising a fatty alcohol.
2. A solid fabric conditioning composition as claimed in claim 1 wherein the deposition aid is an alkaline earth metal citrate or alkali metal citrate.
3. A solid fabric conditioning composition as claimed in claim 2 , wherein the deposition aid is sodium citrate.
4. A solid fabric conditioning composition as claimed in claim 1 wherein the cationic softening material comprises a quaternary ammonium compound.
5. A solid fabric conditioning composition as claimed in claim 1 wherein the solid is in the form of a powder having a mean particle size of less than 700 microns.
6. A solid fabric conditioning composition as claimed in claim 1 wherein the cationic softening material is represented by the formula:
wherein each R is independently selected from a C 5-35 alkyl or alkenyl group, R 1 represents a C 1-4 alkyl, C 2-4 alkenyl or a C 1-4 hydroxyalkyl group,
T is
n is 0 or a number selected from 1 to 4, m is 1, 2 or 3 and denotes the number of moieties to which it relates that pend directly from the N atom, and X is an anionic group; or
by the formula
wherein each R 1 group is independently selected from 1-4 alkyl, hydroxyalkyl or C 2-4 alkenyl groups; and wherein each R 2 group is independently selected from C 8-28 alkyl or alkenyl groups; n is 0 or an integer from 1 to 5 and T and X are as defined above.
7. A solid fabric conditioning composition as claimed in claim 6 wherein the iodine value of the parent compound from which the cationic softening material is formed is from 0 to 60.