US 12,281,285 B1
Detergent tablet free of SLS surfactant and preparation method thereof
Fenglei Li, Guangdong (CN); Min Sun, Guangdong (CN); Jieer Luo, Guangdong (CN); Jieting Yan, Guangdong (CN); and Junli Li, Guangdong (CN)
Assigned to Guangzhou Joyson Cleaning Products Co., Ltd., Guangzhou (CN)
Filed by Guangzhou Joyson Cleaning Products Co., Ltd., Guangdong (CN)
Filed on Oct. 9, 2024, as Appl. No. 18/910,059.
Application 18/910,059 is a continuation of application No. PCT/CN2024/118557, filed on Sep. 12, 2024.
Int. Cl. C11D 1/02 (2006.01); C11D 1/12 (2006.01); C11D 1/72 (2006.01); C11D 1/83 (2006.01); C11D 1/831 (2006.01); C11D 3/14 (2006.01); C11D 3/20 (2006.01); C11D 3/22 (2006.01); C11D 3/33 (2006.01); C11D 3/37 (2006.01); C11D 3/386 (2006.01); C11D 3/50 (2006.01); C11D 17/00 (2006.01)
CPC C11D 3/3753 (2013.01) [C11D 1/831 (2013.01); C11D 3/14 (2013.01); C11D 3/2065 (2013.01); C11D 3/226 (2013.01); C11D 3/38609 (2013.01); C11D 3/38627 (2013.01); C11D 17/0047 (2013.01); C11D 2111/12 (2024.01)] 10 Claims
OG exemplary drawing
 
1. A detergent tablet free of sodium lauryl sulfate (SLS) surfactant, wherein the detergent tablet free of SLS surfactant is prepared by drying a slurry, and the slurry comprises the following raw materials by weight percentages: 10%-40% film-forming agent, 15%-40% anionic surfactant, 2%-12% non-ionic surfactant, 0.5%-5% chelating agent, 0.4%-4% enzyme preparation, 0.5%-5% auxiliary agent, and 0.1%-1% essence;
wherein the film-forming agent comprises film-forming agent A and film-forming agent B, the film-forming agent A is polyvinyl alcohol, and the film-forming agent B comprises at least one of cellulose or dodecenyl succinate starch ester, and a weight ratio of the film-forming agent A to the film-forming agent B is (2-15):1;
the anionic surfactant comprises at least two of sodium α-olefin sulfonate, sodium fatty acid methyl ester sulfonate, or sodium hydroxyethyl sulfonate;
the non-ionic surfactant comprises at least two of fatty alcohol polyoxyethylene ether, fatty acid methyl ester ethoxylate, oil ethoxylate, ethylene-oxide/propylene-oxide (EO/PO) block polyether, plant saponin, alkyl glycoside, or alcohol ether glycoside; and
the chelating agent comprises at least one of gluconic acid and salts of the gluconic acid, glutamic acid diacetic acid and salts of the glutamic acid diacetic acid, methyl glycine diacetic acid and salts of the methyl glycine diacetic acid, or aspartic acid diacetic acid and salts of the aspartic acid diacetic acid.