With the rapid development of the takeaway ordering industry, the demand for lunch boxes has increased sharply. Commonly used takeaway containers from the previous polyethylene lunch box to the current PE material lunch box, paper lunch boxes are currently used in the market for energy conservation and environmental protection, but the current paper lunch boxes have poor thermal insulation performance, and because of the particularity of Chinese food, often dishes With oily water and high temperature out of the pan, the lunch box often becomes soft, deformed, and leaks oil, which is not conducive to the large-scale promotion and application of paper lunch boxes.
In addition, the plastic lunch box itself is relatively strong and facilitates stacking and stacking during transportation. Due to the limited thermal insulation performance and compressive strength of the existing lunch box, when stacking the lunch box, it is easy to cause problems such as bulging and lodging. Unable to meet the current fast-paced demand for take-out meal boxes, as well as to meet the increasing demand for products from customers, there is an urgent need for a paper meal box with a novel structure to solve the above problems to meet the rapidly growing demand for take-out packaging.
The paper lunch box includes a box body and a box cover. The box body includes a side wall plate and a bottom plate. The box cover includes a cover plate and a top plate. The side wall plate and the cover plate are respectively provided with a cylindrical shape for engaging the box cover and the box body. A pressure relief port is provided on the side wall plate of the protruding edge. A hot pressing sealing strip is arranged at the bottom of the box body. An oil guide groove is arranged between the oil-repellent grids. An oleophobic grid is provided on the bottom plate. A receiving groove is arranged on the top of the box cover. The box body is an open box body.
The bottom plate and the cover plate are provided with a bamboo shoot shell leaf insulation layer. The side wall plate and the cover plate are made of food-grade white card coated cup paper. An elastic metal reinforcing rib is arranged in the folding part of the box body. The inner lining layer of the side wall plate is provided with a molded well-shaped paper reinforcing rib. A transparent window is set on the lid of the box, and the transparent window is made of food-grade PE material. An in-line accommodating groove is arranged on the side wall plate, and the accommodating groove is arranged at the junction of the box cover and the box body so that the accommodating groove can be covered after the box cover is closed.
The paper lunch box has the following beneficial effects: Compared with the traditional lunch box, it has novel structure, heat preservation and leakage prevention, prevents the mixture of oil, soup and rice during transportation from affecting the taste, facilitates transportation and stacking, and resists lodging. It combines the paper box and The advantages of plastic boxes are improved, and it is of great significance to actively promote the promotion and popularization of environmentally friendly paper boxes, and to improve consumers’ acceptance of environmentally friendly paper boxes. It is also the fast-paced fast-paced development of fast-food culture’s demand for healthy and environmentally friendly tableware. .
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