Shock-proof air column bag without opening points

Abstract

The invention relates to the field of airtight bag packaging and aims at providing a shock-proof air column bag without opening points. The shock-proof air column bag without the opening points is formed by connecting a plurality of air columns divided by vertical heat-sealing lines; a bag body of the shock-proof air column bag without the opening points comprises two outer films and two inner films, wherein the two inner films are arranged between the two outer films and form an air valve device in a mode of crossing the entire bag body; a heat-resisting ink strip is transversely arranged between the two inner films and along the upper ends of the inner films; the vertical heat-sealing lines cross through the heat-resisting ink strip in a left-right crossed mode and then converge into aninflatable expansion area; the two heat-sealing crossed sides of the inflatable expansion area form a bottleneck-shaped air inlet of neighboring air columns. The shock-proof air column bag without theopening points saves heat-resisting joints at intervals or heat-sealing opening points and changes heat-resisting ink strips originally arranged at intervals into one continuous linear one, thereby only requiring a direct linear operation at a fixed length instead of a benchmarking step during pressing. The shock-proof air column bag without the opening points is accurate and concise in process,table in product quality and high in production efficiency.

Description

technical field [0001] The invention relates to the field of air-sealed bag packaging, more specifically, a shockproof air column bag without an opening point, which has a simple structure and is convenient to manufacture. Background technique [0002] With the development of the global economy, commodity trading has increasingly become an indispensable part of life, and with the rise of a large number of Internet business platforms such as Taobao, Dangdang, and Jingdong, it has become a very common phenomenon for people to shop online. After shopping, a large number of goods need to be packaged and transported. Therefore, the demand for various packaging shockproof materials is increasing, and the performance requirements for packaging materials are also getting higher and higher. However, cost and safety are still the first choice for market competition. . [0003] At present, the most widely used in the market is the air-type airtight packaging bag, which has low cost an...

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned patents, neither the "heat-resistant compression layer" nor the "heat-resistant section" is arranged at intervals, and no matter whether it is equidistant or not equidistant, it needs to be aligned and printed, otherwise the product quality will be affected, so the production is labor-intensive and time-consuming. The manufacturing cost is greatly increased, and the product quality risk is also increased

The heat-seal opening point of the latter’s patent also needs to find heat-resistant joints for alignment and printing, so there are also problems of production efficiency and quality risks.

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