Method of cleaning articles in a dish machine using an acidic detergent
View Patent ↗An acidic detergent composition can be used for removing soils on articles in a dish machine. The acidic detergent composition may be inserted into a dish machine dispenser and a use solution may be formed that contacts a soil on an article and removes the soil on the article. The composition comprises an acid and a surfactant. The composition may be a solid, liquid, gel, paste or pellet.
1. A method of cleaning glassware in a dish machine comprising:
a. providing an acidic cleaning composition comprising:
i. a mineral acid; and
ii. a surfactant, wherein the mineral acid is present at about 36-95 wt.-% of the total weight, and the surfactant is present at about 2 to 50 wt.-% of the total weight of the acidic cleaning composition;
b. inserting the acidic cleaning composition into a dispenser of the dish machine;
c. forming a wash solution wherein the wash solution is a mixture of the acidic cleaning composition and water and the wash solution has a pH in the range of about 0-3;
d. contacting a soil on the glassware with the wash solution;
e. removing the soil on the glassware;
f. forming a rinse solution with the acidic cleaning composition and water; and
g. contacting the glassware with the rinse solution.
2. The method of claim 1 , wherein the surfactant is a nonionic surfactant.
3. The method of claim 2 , wherein the nonionic surfactant is an alcohol ethoxylate.
4. The method of claim 1 , wherein the acidic cleaning composition further comprises an additional functional ingredient.
5. The method of claim 4 , wherein the additional functional ingredient is selected from the group consisting of anticorrosion agents, wetting agents, enzymes, foam inhibitors, antiredeposition agents, anti-etch agents, and mixtures thereof.
6. The method of claim 1 , wherein the mineral acid is hydrochloric acid.
7. The method of claim 1 , wherein the composition is a solid.
8. The method of claim 1 , wherein the composition is a liquid.
9. The method of claim 1 , wherein the composition is a gel.
10. The method of claim 1 , wherein the composition is a pellet.
11. The method of claim 1 , wherein the soil is selected from the group consisting of a starch, a protein, a fat, and mixtures thereof.
12. The method of claim 1 , wherein the surfactant has at least ten carbon atoms.
13. A method of cleaning glassware in a dish machine comprising:
a. providing an acidic cleaning composition comprising:
i. an acid selected from the group consisting of phosphoric acid, hydrochloric acid, and mixture thereof; and
ii. a nonionic surfactant having at least 10 carbon atoms, wherein the acid present at about 36% to 95 wt % of the total weight of the acidic cleaning composition;
b. inserting the acidic cleaning composition into a dispenser of the dish machine;
c. forming a wash solution wherein the wash solution is a mixture of the acidic cleaning composition and water, wherein the pH of the wash solution is in the range of from 0 to 3;
d. contacting a soil on the glassware with the wash solution;
e. removing the soil on the glassware;
f. forming a rinse solution with the acidic cleaning composition and water; and
g. contacting the glassware with the rinse solution.