Study on Ecological Coating Film Packaging Paper for Food Packaging

Abstract

Study the use of cellulose as a coating material on the base paper coating production of food packaging paper, using NMMO direct dissolution method to dissolved cellulose. Through a series of single-factor experiments to compare the best formula for making cellulose coated paper, and test the main properties of the cellulose coated paper produced. The cellulose concentration is 5%, the mass ratio of cellulose to chitosan is 4:1, and the plasticizer glycerin concentration is 3%, the resulting cellulose coated paper to achieve the best performance. The coating amount of 2g / ㎡, moisture permeability coefficient of 480.23g/ ㎡·24h, oxygen permeability coefficient of 7.8g·mm/ ㎡·24h, oil permeability 0.026g·mm / ·d, tensile strength of 7012N/m.