Water film on inner wall of paper tableware and preparation method thereof

Abstract

The invention provides a water film on an inner wall of paper tableware and a preparation method thereof. The water film on the inner wall of the paper tableware comprises the following raw materials in part by weight: 0.03 to 0.1 part of potassium sorbate, 0.05 to 0.15 part of emulsifier, 0.5 to 1 part of plasticizer, 0.2 to 0.3 part of stearic acid, 0.5 to 1.5 parts of konjac glucomannan esterified product, 0.5 to 2 parts of xanthan gum, 0.625 to 1 part of carrageenan, and 100 parts of water. The method comprises the following steps of: preparing film solution according to the raw material formula, and packaging the table ware after heating, centrifugally degassing, tableware filming, drying, samming and mellowing and sterilizing. The water film on the inner wall of the paper tableware has the advantages of no toxicity and obvious water resistance and capability of postponing transfer and diffusion of water, oil and other components in food; the konjac composite gel can coat a plurality of aromatic substances and improve the sensory quality of product; and the water film also has the advantages of water resistance, high temperature resistance, high mechanical performance, high flexibility, and no generation of harmful substances at high temperature or in the presence of oil.

Description

technical field [0001] The invention relates to a water film on the inner wall of paper tableware and a preparation method thereof. Background technique [0002] In view of the huge negative impact of traditional disposable plastic tableware on environmental resources and human health, fully biodegradable tableware has also been introduced on the market. Although it is completely biodegradable and environmentally friendly, its water barrier film still does not conform to the human body. Health requirements, and its high cost, is not conducive to popularization and application. At present, there are two main types of paper tableware on the market: wax-coated paper tableware and polyethylene-coated paper tableware. Waxed paper tableware will melt at around 40°C or in contact with oil to produce carcinogenic polycyclic aromatic hydrocarbons; polyethylene-coated paper tableware may be oxidized and cause hazards in the process of polyethylene hot-melting or smearing on paper tab...

AI Technical Summary

Problems solved by technology

However, if the selected material is not good or the processing technology is not good enough, it may be oxidized to carbonyl compounds during the process of hot melting or applying polyethylene to paper cups

Carbonyl compounds are not easy to volatilize at room temperature, but they may volatilize when hot water is poured into a paper cup, so people will smell a strange smell

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