Degradable disposable tableware and preparation method thereof

Abstract

The invention belongs to the field of disposable tableware, and particularly relates to a degradable disposable tableware and a preparation method thereof. The invention uses purely natural green materials, such as composite straw powder, shell powder, composite starch and composite fiber pulp, peach gum is adopted as binder, bamboo outer skin is added to increase the toughness of the tableware, kelp extract is sprayed on the surface of the tableware to isolate oil and water, so that the tableware is more durable, and ultimately, the degradable disposable tableware which uses the purely natural materials, does not contain chemical ingredients and is tough and durable is obtained.

Description

technical field [0001] The invention belongs to the field of disposable tableware, in particular to a degradable disposable tableware and a preparation method thereof. Background technique [0002] my country has a huge demand for disposable tableware, mostly plastic or paper products. Most of the industrially produced plastic products are difficult to degrade, and cause serious environmental pollution while consuming fossil energy; paper products will also bring about problems such as deforestation, refractory coating film, waste of water resources, etc., and the cost is relatively high. [0003] At present, my country's degradable tableware is mainly prepared from starch, and the use of straw to prepare environmentally friendly tableware has the advantages of high utilization efficiency and easy recycling. Chinese patent application No. 98124818.7 discloses a straw tableware, which is prepared by stirring, mixing, and pressurizing straw, electric jade powder, filler or ca...

AI Technical Summary

Problems solved by technology

Chinese patent application No. 98124818.7 discloses a straw tableware, which is prepared by stirring, mixing, and pressurizing straw, electric jade powder, filler or calcium stearate (or flour). The tableware is light in weight and strong in compression resistance. The processing technology is simple, but the toughness is insufficient and fragile due to the lack of adhesive; Chinese patent application No. 99115359.6 discloses a method for producing degradable tableware using plant stems and fruit shells as raw materials. And after the fruit shell is treated, add adhesive and mix, add gypsum mold to form and dry, and then make it by surface coating and drying. The finished product has good degradation performance, non-toxic and harmless, but the molding method of raw materials determines the product strength. Not good, and the processing technology is complicated; Chinese Patent Application No. 01127386.0 discloses a disposable degradable tableware and its manufacturing method. It is made by hydroforming at room temperature, drying treatment, and spraying release agent on the surface. The tableware has high rigidity and can be adjusted by adjusting the proportion. It has good degradation performance and toughness, but it uses corn flour and bletilla striata powder as adhesives The final product has poor toughness, and release agents such as water-based polyurethane used in the product release toxic gas before curing; Chinese patent application number 01108832.X discloses a disposable easy-degradable tableware made of starch as the main raw material. %-90% is starch, supplemented with a small amount of straw fiber, vegetable oil and additives. After one hot press molding, the surface is coated with waterproof glue after molding. The tableware is mainly starch, so it has good degradation performance, low cost, non-toxic, Odorless, but its main disadvantage is that the brittleness of the starch after curing leads to poor tensile strength of the product and is easy to break

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