Patent ID: 7928047

Claim:
Detergent granules, comprising: 1 to 30 parts by weight of nonionic surfactant; 15 to 30 parts by weight of anionic surfactant comprising lauryl benzene sulfonic acid; 3 to 15 parts by weight of a copolymer of acrylic acid and 2-acrylamido-2-methylpropane sulfonic acid, wherein a weight ratio of acrylic acid to 2-acrylamido-2-methylpropane sulfonic acid is 95:5 to 80:20; and 50 to 70 parts by weight of an alkali builder comprising sodium carbonate and sodium sulfate, wherein the detergent granules have pores created by moisture and gas of a neutralization reaction between the copolymer and the anionic surfactant as acidic components and the alkali builder as a base component, and are dried by heat generated by the neutralization reaction, and wherein the detergent granules are free of zeolite or silica that absorbs liquid components.