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Disposable lunch box is made of what?
Types of disposable lunch box: 1, cardboard type cardboard fast food box is 300-350 grams of bleached sulfate wood pulp cardboard as raw materials, through a similar sheet metal processing press molding process for die-cutting and gluing or die-cutting and pressing, shaping and other processes made. In order to prevent its seepage of oil or water, to the surface of the film or the application of chemical additives. In the production and use of the process is non-toxic, no side effects on the human body. But for the cardboard quality requirements are higher, and then the cost is also increased. 2, starch-based starch as raw material for edible fast food containers, as the name suggests, it is based on starchy plants as raw materials, adding dietary fibers and other edible additives through the mixing and kneading and become, it adopts the biological compounding, crosslinking of polysaccharides, calcium chelating and other technologies refined from a dense layer, the waterproof layer, the glue net layer and the outer waterproof layer of four parts. 3, pulp molding type, the paper pulp molding type. 3, pulp molding type of wood pulp or reed, bagasse, wheat straw, rice straw and other annual herbaceous plant fiber pulp by pulping and purification, adding appropriate amount of non-toxic chemical additives, molding, drying, shaping, shaping, trimming, disinfection made. The aesthetics of the product is not high, but also increase the pollution of wastewater. 4, plant fiber type in the environmental advantages, plant fiber lunch boxes have obvious advantages, it is rice straw, rice husk, bagasse and other extracted plant fiber as raw materials, adding molding agent, binder, water-resistant agent and other auxiliaries stirring through the molding machine molding, drying, shaping, disinfection and other post-processing and become. These agricultural scraps can become industrial raw materials, contributing to the comprehensive utilization of agricultural resources. 5, biodegradable plastic lunch boxes such lunch boxes are made of biodegradable plastics, the so-called biodegradable plastics is to add a certain amount of additives to the production process of plastics, such as photosensitizers, starch and other raw materials so that the biodegradable plastic products in the use of the end, and discarded in the nature of the exposure of three months, can be by the complete form into pieces, thus improving the environment, at least visually. However, the biggest defect of this technology is that these fragments can not continue to degrade, but only from a large piece to a small piece of plastic, can not be fundamentally competent to eliminate the task of white pollution. 6. Bio-all-degradable lunch box Bio-all-degradable lunch box is a relatively advanced environmentally friendly products. It takes starch as the main raw material, adds one year old plant fiber powder and special additives, and is processed by chemical and physical methods to make biodegradable fast food box. As starch is a biodegradable natural polymer, it decomposes into glucose under the action of microorganisms and finally into water and carbon dioxide. In addition, the materials mixed with it*** are also fully degradable, so it can be said that it has no impact on the environment. The main source of starch, the raw material for production, can be corn, potato, sweet potato, cassava and other annual long-term plants. Naturally, the biodegradable lunch box is not perfect, for example, most of the production raw materials are food crops, and there are mold and mildew resistance and other issues have yet to be resolved.