Multiuse, solid cleaning device and composition

• US 7,517,366 B2
• Filed: 02/10/2005
• Issued: 04/14/2009
• Est. Priority Date: 02/10/2004
• Status: Expired due to Fees

• Current Assignee: Eco-Bat Technologies Limited (Quexco, Inc.)
• Original Assignee: Eco-Bat Technologies Limited (Quexco, Inc.)
• Inventors: Caruthers, Eddie Jr., Evans, K. Donald, Cook, Cory E.
• Primary Examiner(s): MC GINTY, DOUGLAS J
• Application Number:
  US10/597,837
• Publication Number:
  US 20070184998A1
• Time in Patent Office: 1,524 Days
• Field of Search: 813/7, 510/378, 510/377, 510/447, 510/507, 510/511, 510/532, 510/509, 510/531
• US Class Current: 8/137
• CPC Class Codes: B01F 21/22 using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles
• CPC Class Codes: B01F 2101/24 Mixing of ingredients for cleaning compositions
• CPC Class Codes: B01F 2101/4505 Mixing ingredients comprising detergents, soaps, for washing, e.g. washing machines
• CPC Class Codes: B01F 25/316 with containers for additional components fixed to the conduit
• CPC Class Codes: C11D 11/0094 Process for making liquid detergent compositions, e.g. slurries, pastes or gels
• CPC Class Codes: C11D 17/0047 Detergents in the form of bars or tablets
• CPC Class Codes: C11D 17/041 Compositions releasably affixed on a substrate or incorporated into a dispensing means
• CPC Class Codes: C11D 17/046 Insoluble free body dispenser
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/0052 Gas evolving or heat producing compositions
• CPC Class Codes: C11D 3/044 Hydroxides or bases
• CPC Class Codes: C11D 3/08 Silicates
• CPC Class Codes: C11D 3/10 Carbonates ; Bicarbonates
• CPC Class Codes: C11D 3/128 Aluminium silicates, e.g. zeolites C11D3/1253 takes precedence
• CPC Class Codes: C11D 3/3942 Inorganic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: C11D 3/42 Brightening agents ; Blueing agents
• CPC Class Codes: C11D 3/50 Perfumes

Abstract

A multiuse laundry cleaning device in a solid state containing a homogeneous quantity of cleaning agent configured to dissolve and release a substantially consistent quantity of cleaning agent over a plurality of laundry wash and rinse cycles. The cleaning agent includes a gas-releasing component, potassium silicate as a solubility control component to limit the solubility of the cleaning agent, an alkalinity agent as a pH regulator, and a water softener to solvate metal ions in a solution of water. Controlled dissolution of the cleaning agent composition releases a desired quantity of cleaning agent in each cleaning cycle over a plurality of cycles. A porous covering of bag may be disposed around the solid cleaning agent.

Claims

1. A method of providing laundry cleaning agent to a laundry cleaning machine comprising:

obtaining a multiuse laundry cleaning device in a solid state comprising a homogeneous quantity of cleaning agent in solid form comprising a gas-releasing component selected from the group consisting of perborates, percarbonates, and mixtures thereof, a potassium silicate solubility control component to limit the solubility of the cleaning agent, wherein the solubility control component is present in an amount sufficient to cause the multiuse laundry cleaning device to dissolve in water and release a substantially consistent quantity of cleaning agent over a plurality of laundry wash and rinse cycles; and

depositing the laundry cleaning device within the laundry cleaning machine tub under conditions such that the cleaning agent in solid form in the laundry cleaning device is exposed to water from the plurality of laundry wash and rinse cycles.

2. The method according to claim 1, further comprising the step of disposing the solid cleaning agent within a porous covering or bag.

3. The method according to claim 2, wherein the porous, covering or bag comprises a pliable fabric material.

4. The method according to claim 2, wherein the porous covering or bag conforms to the size of the solid cleaning agent as the cleaning agent shrinks in size due to dissolution of cleaning agent.

5. The method according to claim 2 wherein the porous covering or bag comprises:

an outer layer made of a mesh material;

an inner layer made of a mesh material; and

a middle layer made from a padding material.

6. The method according to claim 5 wherein the padding material used to make the middle layer is selected from the group consisting of porous foam and ruffled netting.

7. The method according to claim 1, wherein the cleaning agent in solid form further comprises a structure disposed within the quantity of cleaning agent to signal when to replace the cleaning device.

8. The method according to claim 1, wherein the cleaning agent in solid form is in the form of a ball.

9. The method according to claim 1, wherein the gas-releasing component is present in an amount from 20% to 60% by weight, and wherein the solubility control component is present in an amount from 20% to 60% by weight.

10. The method according to claim 9, wherein the cleaning agent further comprises:

a fragrance component present in an amount from about 0.5 to 15% by weight; and

an anti-redeposition component present in an amount from about 0.5% to 10% by weight.

11. The method according to claim 1, wherein the gas-releasing component is sodium perborate monohydrate present in an amount from 42% to 52% by weight, wherein the solubility control component is potassium silicate present in an amount from 35% to 45% by weight.

12. The method according to claim 1,further comprising a water softener present in an amount from 0.5% to 20% by weight;

an alkalinity agent present in an amount from 0.5% to 20% by weight, and an optical brightener is present in an amount from 0.5% to 8% by weight.

13. The method according to claim 1, further comprising a zeolite water softener present in an amount from 1% to 5% by weight;

an alkalinity agent comprising sodium hydroxide present in an amount from 1% to 5% by weight, and an optical brightener present in an amount from 0.5% to 3% by weight.

14. The method according to claim 1, wherein the cleaning agent in solid form dissolves and releases a substantially consistent quantity of cleaning agent over from about 10 to 40 cleaning wash or rinse cycles.

15. The method according to claim 12, further comprising the step of retaining the laundry cleaning device deposited within the laundry cleaning machine tub from one laundry wash and rinse cycle to another laundry wash and rinse cycle.

16. The method according to claim 9 further comprising the step of disposing the solid cleaning agent within a porous covering or bag.