Preparation method of low-cost paper environment-friendly take-out meal box

Abstract

The invention provides a preparation method of a low-cost paper environment-friendly take-out meal box, and relates to the field of meal box materials, and the preparation method comprises the following steps: preparing wheat straw fibers; preparing ramie fibers; preparing hard cloth; adding waste corrugated paper into a crusher; crushing for 30-50 minutes at the speed of 2,000-2,500 r / min to obtain corrugated paper powder; soaking the corrugated paper powder in water for 25-30 hours; adding rice straw powder, calcium carbonate and starch; mechanically stirring at 1200-1500r / min for 2-5h, andadjusting the pH value of the system to 10 by using a sodium hydroxide solution to obtain thick slurry; heating and raising the temperature to 40 to 50 DEG C; soaking the hard cloth for 5 to 10min andthen fishing out the hard cloth; drying at the temperature of 70-80 DEG C to obtain sheets, taking a plurality of sheets for hot press molding to obtain a meal box body, adhering a layer of high-temperature-resistant film to the inner surface of the meal box body, and heating and curing at the temperature of 50-60 DEG C. According to the paper environment-friendly take-out meal box, the excellent mechanical property, heat resistance and water resistance of the meal box can be guaranteed while the low cost is guaranteed.

Description

technical field [0001] The invention relates to the field of lunch box materials, in particular to a method for preparing a low-cost paper environment-friendly takeaway lunch box. Background technique [0002] With the development of the catering industry, delicacies from all over the world have spread around people. At the same time, with the acceleration of people's life rhythm, the takeaway industry has gradually emerged. As a new way of dining, ordering takeaway is developing rapidly. According to statistics, in 2017 The size of the takeaway market has exceeded 200 billion, and it is expected to exceed 300 billion in 2018. Such a huge takeaway market has spawned a large number of takeaway orders, and each takeaway order means that at least one takeaway meal box has been used. [0003] At present, there are five main types of takeaway lunch boxes: pulp molded tableware, plant fiber tableware, starch blended tableware, degradable plastic tableware and non-degradable plasti...

AI Technical Summary

Problems solved by technology

Among them, non-degradable plastic tableware is difficult to be degraded by the soil after being discarded. It takes hundreds of years to rot after being buried in the soil, causing white pollution, and incineration will produce a large amount of harmful smoke and toxic gases, polluting the environment, but because of its low price, It has always accounted for a large proportion of takeaway lunch boxes, and the pulp molded tableware, plant fiber tableware, and starch blended tableware in the first four types of takeaway lunch boxes are not resistant to water, acid, and alcohol due to the particularity of the materials used. , oil, and poor high temperature tolerance, the soup is easy to soften, the strength is low and it is not resistant to bending, many merchants are unwilling to use it, and the price of degradable plastic tableware is relatively high, and its price cost will often be passed on to consumers.

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