Detergent tablet
OwnerPatrizio Ricci, Brenda Frances Bennie +3inventors
InventorsPatrizio Ricci, Brenda Frances Bennie, Christopher James Binder, Valerio Del Duca, Andrea Esposito
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Abstract
A multi-phase detergent tablet for use in a washing machine, the tablet comprising: a) a first phase in the form of a shaped body having at least one mould therein; and b) a second phase in the form of a particulate solid compressed within the mould. The multi-phase tablets provide improved dissolution and cleaning characteristics together with excellent tablet integrity and strength.
Claims15
A multi-phase detergent tablet for use in a washing machine, the tablet comprising:
- a) a first phase in the form of a compressed shaped body having at least one mould therein, the shaped body being prepared at a compression pressure from about 400 kg/cm2 to about 2,000 kg/cm2;
- and
- b) a second phase in the form of a particulate solid compressed within said mould, the second phase being compressed at a pressure from about 40 kg/cm2 to less than 350 kg/cm2;
- wherein said tablet comprises an enzyme and a laundry detergent adjunct selected from the group consisting of optical brighteners, polymeric dye transfer inhibiting agents, clay softening systems, cationic fabric softening agents and mixtures thereof.
A process for making multi-phase detergent tablets comprising the steps of:
- a) compressing a first detergent active composition at a pressure from about 400 kg/cm2 to about 2,000 kg/cm2 to form a first phase comprising a mould;
- b) delivering a second detergent active composition in particulate form into the mould;
- and
- c) compressing the second detergent active composition within the mould at a pressure of less than 350 kg/cm2;
- wherein at least one of said first detergent active composition and second detergent active composition comprises an enzyme, and
- wherein at least one of said first detergent active composition and second detergent active composition comprises a laundry detergent adjunct selected from the group consisting of optical brighteners, polymeric dye transfer inhibiting agents, clay softening systems, cationic fabric softening agents and mixtures thereof.
Dependencies are inferred from the claim text.