With the rapid development of the delivery ordering industry and the sudden increase in demand for food boxes, the commonly used delivery boxes have evolved from polyethylene lunch boxes to PE material lunch boxes. In order to save energy and protect the environment, paper lunch boxes have been used in the market. However, the current paper lunch boxes have poor insulation performance. Moreover, due to the unique nature of Chinese cuisine, dishes often contain oil and water as well as high cooking temperatures, resulting in lunch boxes often becoming soft, deformed, and leaking oil, Not conducive to the widespread promotion and application of paper lunch boxes, coupled with the fact that plastic lunch boxes are relatively sturdy and easy to stack during transportation. Due to the limited thermal insulation and compressive strength of existing lunch boxes, it is easy to cause problems such as bulging and lodging when stacking lunch boxes, which cannot meet the fast-paced demand for delivery lunch boxes and meet the growing product demand of customers, Currently, there is an urgent need for a paper lunch box with a novel structure to address the aforementioned issues and adapt to the rapidly developing demand for takeout packaging.

紙質餐盒，包括盒體、盒蓋，盒體包括側壁板、底板，盒蓋包括蓋板、頂板，側壁板以及蓋板上分別設置有用于卡合盒蓋與盒體的圓柱形突起邊緣，側壁板上設置有設置有泄壓口。盒體底部設置有熱壓密封條。疏油格之間設置有導油槽。底板上設置有疏油格。盒蓋頂部設置有承納槽。盒體為敞口式盒體。底板以及蓋板中設置有筍殼葉隔熱層。側壁板以及蓋板由食品級白卡淋膜口杯紙構成。盒體的折合處內設置有彈性金屬加強筋。側壁板的內襯層中設置有模壓井字型紙質加強筋。盒蓋上設置透明視窗，透明窗采用食品級PE材料。側壁板上設置有內嵌式容納槽，容納槽設置于盒蓋與盒體的蓋合處使盒蓋蓋上之后能蓋住容納槽。

A paper lunch box includes a box body and a box cover, the box body includes a side wall panel and a bottom plate, the box cover includes a cover plate and a top plate, and the side wall panel and cover plate are respectively equipped with cylindrical protruding edges for clamping the box cover and the box body, and the side wall panel is equipped with a pressure relief port. The bottom of the box body is equipped with a hot pressed sealing strip. There are oil guide grooves between the oil drainage grids. The bottom plate is equipped with oil drainage grids. The top of the box cover is equipped with a receiving groove. The box body is an open type box body. The bottom plate and cover plate are equipped with a bamboo shoot shell leaf insulation layer. The side wall panel and cover plate are composed of food grade white card coated cup paper. Elastic metal reinforcing ribs are installed inside the folding part of the box body. The inner lining layer of the side wall panel is equipped with molded well shaped paper reinforcing ribs. A transparent window is set on the box cover, which is made of food grade PE material. The side wall panel is equipped with an embedded receiving slot, which is located at the junction of the box cover and the box body to cover the receiving slot after the box cover is closed.

紙質餐盒具有以下有益效果是：相對于傳統的餐盒具有結構新穎、保溫防漏，防止運輸過程中油、湯與飯混合浸泡影響口感、方便運輸碼垛、抗倒伏，結合了紙盒與塑料盒的優點加以改進，對積極推進環保紙盒的推廣以及普及應用，提高消費者對環保紙盒的接納程度具有突出的重要意義，也是如今快節奏發展的快餐文化對餐具健康、環保的需求。

Paper lunch boxes have the following beneficial effects: compared to traditional lunch boxes, they have a novel structure, insulation and leak prevention, prevent the mixing and soaking of oil, soup, and rice from affecting the taste during transportation, facilitate transportation and stacking, and resist lodging. They combine the advantages of paper boxes and plastic boxes to improve and promote the promotion and widespread application of environmentally friendly paper boxes, and increase consumers' acceptance of environmentally friendly paper boxes, which has outstanding significance, It is also the demand for healthy and environmentally friendly tableware in the fast-paced development of fast food culture nowadays.