Solid laundry detergent for restaurant soils

Patent metadata

Field	Value
Publication number	US-10351803-B2
Application number	US-201615012292-A
Country	US
Kind code	B2
Filing date	Feb 1, 2016
Priority date	Feb 1, 2016
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

The invention relates to solid detergents for cleaning restaurant soils and methods of making and using the same. Embodiments of the invention can include solid cleaning compositions having an alkalinity source comprising an alkali metal carbonate, a surfactant system comprising an anionic surfactant and a nonionic surfactant, a water conditioning agent, and water. Embodiments of the invention can have a pH between about 7 and about 11, and are suitable for removing restaurant soils, including, synthetic grease, animal grease, and proteinaceous soils.

First claim

What is claimed is:

1. A pressed solid cleaning composition comprising:
between about 65 wt. % and about 95 wt. % of an alkalinity source comprising an alkali metal carbonate;
between about 1 wt. % and about 25 wt. % of a surfactant system comprising a nonionic surfactant, wherein the nonionic surfactant comprises a C10-C18 linear alcohol ethoxylate, an alcohol ethoxylate, or combinations thereof; and an anionic surfactant, wherein the anionic surfactant comprises a linear alkyl benzene sulfonate;
between about 0.05 wt. % and about 7 wt. % of a water conditioning agent, wherein the water conditioning agent comprises an antiredeposition agent, chelating agent, sequestering agent, inhibitor, or combinations thereof;
between about 2 wt. % and 6 wt. % of water; and
wherein the composition has a pH greater than about 7 and up to about 11; wherein the composition does not contain a halogen-based whitening agent; and wherein the composition can remove synthetic grease, animal grease, and proteinaceous soils.

2. The composition of claim 1 , further comprising a polymer in an amount between about 0.05 wt. % and about 5 wt. %.

3. The composition of claim 1 , wherein the nonionic surfactant is present in an amount between about 1 wt. % and about 13 wt. %.

4. The composition of claim 1 , wherein the anionic surfactant is present in an amount between about 1 wt. % and about 10 wt. %.

5. The composition of claim 2 , wherein the polymer is a polyacrylate, and wherein the water conditioning agent comprises sodium carboxymethyl cellulose.

6. The composition of claim 1 further comprising a dye, an enzyme, a fragrance, a whitening agent which is an oxygen-based bleaching agent, or combinations thereof.

7. A pressed solid cleaning composition comprising:
between about 65 wt. % and about 95 wt. % of an alkalinity source comprising an alkali metal carbonate;
between about 0.05 wt. % and about 5 wt. % of a polymer;
between about 1 wt. % and about 25 wt. % of a surfactant system comprising a nonionic surfactant, wherein the nonionic surfactant comprises a C10-C18 linear alcohol ethoxylate, an alcohol ethoxylate, or combinations thereof; and an anionic surfactant, wherein the anionic surfactant comprises a linear alkyl benzene sulfonate;
between about 0.05 wt. % and about 7 wt. % of a water conditioning agent, wherein the water conditioning agent comprises an antiredeposition agent, chelating agent, sequestering agent, inhibitor, or combinations thereof;
between about 2 wt. % and 6 wt. % of water; and
wherein the composition has a pH greater than about 7 and up to about 11; wherein the composition does not contain a halogen-based whitening agent; and wherein the composition can remove synthetic grease, animal grease, and proteinaceous soils.

8. The composition of claim 7 , wherein the nonionic surfactant is present in an amount between about 1 wt. % and about 13 wt. %, and comprises a C10-C18 linear alcohol ethoxylate having between 2 and 20 moles of ethylene oxide, an alcohol ethoxylate, or combinations thereof.

9. The composition of claim 7 , wherein the anionic surfactant is present in an amount between about 1 wt. % and about 10 wt. % and comprises a linear alkyl benzene sulfonate; and wherein the polymer is a polyacrylate, and wherein the water conditioning agent comprises sodium carboxymethyl cellulose.

10. The composition of claim 7 further comprising a dye, an enzyme, a fragrance, a whitening agent which is an oxygen-based bleaching agent, or combinations thereof.

11. The composition of claim 10 , wherein the whitening agent is a peroxygen bleach.

12. The composition of claim 7 , wherein the composition is diluted with water to form a use solution.

13. A method of cleaning laundry comprising:
contacting laundry with a cleaning composition of claim 7 , wherein the laundry is soiled with a restaurant soil; and
rinsing the laundry.

14. The method of claim 13 further comprising contacting the laundry with a whitening agent which is an oxygen-based bleaching agent.

15. The method of claim 14 , wherein the whitening agent is a pretreatment or an ingredient in the cleaning composition.

16. The method of claim 13 , wherein the nonionic surfactant is present in an amount between about 1 wt. % and about 13 wt. %, and comprises a C10-C18 linear alcohol ethoxylate having between 2 and 20 moles of ethylene oxide, an alcohol ethoxylate, or combinations thereof; and wherein the anionic surfactant is present in an amount between about 1 wt. % and about 10 wt. % and comprises a linear alkyl benzene sulfonate.

17. The method of claim 13 , wherein the cleaning composition further comprises a dye, an enzyme, a fragrance, a whitening agent which is an oxygen-based bleaching agent, or combinations thereof.

Assignees

• Ecolab Usa Inc

Inventors

• Martinez-Crowley Melissa
• Biggs Jeffrey John
• Smith Stephen Todd
• Babcock Meghan

Classifications

• C11D3/225

  etherified, e.g. CMC · CPC title

• C11D3/3761

  in solid compositions · CPC title

• C11D3/10 Primary

  Carbonates {; Bicarbonates} · CPC title

• C11D17/0065

  Solid detergents containing builders (C11D17/06 takes precedence) · CPC title

• C11D3/3902

  combined with specific additives · CPC title