Multilayer composite packing box lining

Abstract

The invention provides a multilayer composite packing box lining. The multilayer composite packing box lining comprises an upper-layer paperboard, a plurality of middle-layer paperboards and a lower-layer paperboard, the upper-layer paperboard is cut into a first sheet body and a first bonding reinforcing part which are used for bearing the product according to the shape of the product; cutting the plurality of middle-layer paperboards into a plurality of second sheet bodies for supporting the product according to the shape of the product; the lower-layer paperboard is cut into a third sheet body and a third bonding reinforcing part which are used for bearing the product according to the shape of the product; and the first sheet body, the plurality of second sheet bodies and the third sheet body jointly form an accommodating cavity for supporting a product. The product accommodating cavity constructed by the invention forms a semi-sealed structure, and is more attractive compared with a semi-hollow accommodating cavity; a die cutting-thermocompression bonding two-step method is adopted for directly compounding multiple layers of paperboards to prepare the lining box, the actual process only comprises two steps, the process is very simple and efficient, compared with an integrated forming mode, the process is simpler, and manpower and material resources are saved; and a multi-layer paper compounding mode is adopted, so that the stability of the lining box is higher, and the compression resistance and shock resistance are better.

Description

technical field [0001] The invention relates to the technical field of packaging boxes, in particular to a multi-layer composite packaging box inner liner. Background technique [0002] In recent years, plastics have been widely used in people's daily life. According to statistics, the global plastic production capacity in 2018 was 360 million tons, and the production has increased by more than 20 times since 1964. It is expected that the global plastic production will double again in 2035. Statistics show that the main focus of global plastic production has shifted from developed economies such as Europe and the United States to Asia. Disposable plastic products are used in large quantities and have a low recycling rate, which have caused serious pollution to the soil and marine environment, brought irreparable damage to the ecological environment, and more seriously endangered human health. It has become a general consensus of the international community to control plasti...

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: the purpose of this invention is to provide a multi-layer composite packaging box lining, which is aimed at the current complex process of integrally formed liner boxes, or the hollow-out product cavity prepared by a simple composite process, which affects the appearance of the technology The problem is to provide a process that only uses the two-step method of die-cutting and hot-pressing to directly compound the multi-layer cardboard to prepare the inner box. , compared with the semi-hollow cavity, it is more beautiful and has better structural stability

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