Whitening and stain-removing laundry sheet and preparation method thereof

A whitening and stain-removing laundry sheet, comprising the following raw materials by mass percentage:

• 10-30% of a film-forming agent, 10-30% of an anionic surfactant, 3-10% of a nonionic surfactant, 11-30% of a fluorescent whitening agent, 0.5-5% of an anti-fouling agent, 0.5-5% of an enzyme preparation, 0.1-1% of a plant extract, 0.5%-5% of a chelating agent, and 0.5-5% of an auxiliary agent;
• the film-forming agent comprises at least a film-forming agent A and a film-forming agent B;
• the film-forming agent A is polyvinyl alcohol, and the film-forming agent B is at least one selected from a group consisting of:
• polyvinylpyrrolidone and a modified polyvinyl alcohol;
• the anionic surfactant comprises at least one of sodium alkyl sulfate, sodium fatty acid methyl ester sulfonate, or sodium alpha-olefin sulfonate;
• the nonionic surfactant is at least one selected from a group consisting of:
• polyglyceryl fatty acid ester, fatty alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether, secondary alcohol polyoxyethylene ether, fatty acid methyl ester ethoxylate, alcohol ether glucoside, and alkyl glucoside.