The application, in the packaging industry, of bean-curd refuse from soybean processed food

摘要

An investigation was made on a way to put bean-curd refuse(okara)to practical use in moulding vessels and other utensils. The mixture of bean-curd refuse, pulp(fibres of paper)and calcium hydroxide in the ratios 100:10:5(by dry weight)was suspended in 200 times its volume of water and heated at 50 to 80 deg. C for more than two hours. Some vessels or utensils were moulded from the residue of the filtered mixture and dried in a drying oven. The resulting products exhibited desirable characteristics-light, hard and waterproof, and had adequate strength for use for vessels such as gardening pots or dishes for serving food.