Fabric conditioners comprising encapsulated active material
A fabric conditioning composition comprising: (a) at least 8 wt % of a fabric conditioning active; (b) a first capsule containing an active material, wherein the first capsule comprises a cured polymeric wall and a core; and (c) a second capsule containing an active material wherein the second capsule comprises a cured polymeric wall and a core; wherein the first and second capsules differ in properties due to their polymer walls having been made using the same polymer and different cure temperatures, curing times, or a combination thereof.
1. A fabric conditioning composition comprising:
(a) at least 8 wt % of a fabric conditioning active;
(b) a first capsule containing an active material, wherein the first capsule comprises a cured polymeric wall and a core; and
(c) a second capsule containing an active material wherein the second capsule comprises a cured polymeric wall and a core;
wherein the first and second capsules differ in release properties due to their polymer walls having been made using the same polymer and different cure temperatures, curing times, or a combination thereof; and
wherein the composition provides a controlled-release of the active material.
2. A fabric conditioning composition as claimed in claim 1 , wherein the active materials of the first and second capsules are the same.
3. A fabric conditioning composition as claimed in claim 1 , wherein the active materials of the first and second capsules are different.
4. A fabric conditioning composition as claimed in claim 1 wherein the active material of at least the first or second capsule is a fragrance.
5. A fabric conditioning composition as claimed in claim 1 wherein the first capsule is cured at a temperature above 120° C.
6. A fabric conditioning composition as claimed in claim 1 wherein the second capsule is cured at a temperature above 80° C.
7. A fabric conditioning composition as claimed in claim 1 wherein the first capsule is cured for 2 to 4 hours.
8. A fabric conditioning composition as claimed in claim 1 wherein the second capsule is cured for 1 to 2 hours.
9. A fabric conditioning composition as claimed in claim 1 wherein the first capsule and second capsule are present in a 1:1 ratio.
10. A fabric conditioning composition as claimed in claim 1 wherein the active materials of the first or second capsules comprise a malodor counteractant.
11. A fabric conditioning composition as claimed in claim 1 further comprising a third capsule, a fourth capsule, a fifth capsule, a sixth capsule or a seventh capsule.
12. A fabric conditioning composition as claimed in claim 1 wherein the fabric conditioning active is an ester-linked quaternary ammonium active compound.
13. A method for treating fabric comprising contacting the fabric with an aqueous dispersion comprising the composition defined in claim 1 during a laundry process.
14. A fabric conditioning composition as claimed in claim 1 wherein the controlled-release is a linear release.