Double layer detergent tablet and preparation method thereof

US11674112B1 · kind B1 · utility

Assignee

• Guangzhou Joyson Cleaning Products Co., Ltd. · CN

Inventors

• Jianfeng Sun · 余新镇, CN
• Fenglei Li · 流花街道, CN
• Jianjia Zhong · Longbeilingcun, CN
• Yan Li · San Jose, US
• Dongqian Wu · Longbeilingcun, CN
• Min Sun · Shanghai, CN

Key dates

• Filing date: Dec 30, 2022
• Grant date: Jun 13, 2023
• Expiry date: Dec 30, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/386
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present application relates to the technical field of daily cleaning and washing products, and particularly to a double layer detergent tablet and a preparation method thereof. The double layer detergent tablet includes a color absorbing fiber and a solid detergent adhered to the color absorbing fiber, the solid detergent includes the following components by mass percentage: 8-30% of polyvinyl alcohol, 10-40% of surfactant, 0.5-5% of polyvinylpyrrolidone, 1-5% of glycerin, 0.5-5% of water softener, 0.1-1% of plant essence, 14-79.9% of deionized water. The surfactant is a mixture of an anionic surfactant and a non-ionic surfactant; the anionic surfactant is a mixture of sodium coco-sulfate and sodium alpha-olefin sulfonate; and the non-ionic surfactant is a mixture of alkyl glycoside, fatty alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether and fatty acid methyl ester ethoxy compound.