Expanding bag and production process thereof

Abstract

The invention discloses an expanding bag and a production process thereof. The expanding bag comprises an outer bag and at least one inner sheet. The outer bag comprises a bag body and a bag cover. The bag body comprises a front plate and a rear plate which are connected through folding sheets at the two ends. Two sides of the at least one inner sheet are fixed on the folding sheets at the two ends of the bag body respectively, two ends of the folding sheets are connected onto the front plate and the rear plate through hot pressing, connection positions are in eight double vertical line shapes, and the connection is achieved through a hot press and a mold, on the upper portion of which live wire heating wires are mounted. The at least one inner sheet is 0.15mm thick, and the wall of the outer bag is 2mm thick. According to the expanding bag and the production process thereof, connections of all portions are firm, the at least one inner sheet cannot get loose even if the expanding bag is used for a long time, the production cost is low, and the application range is wide.

Description

technical field [0001] The invention relates to an organ bag and its production process, which is mainly used for storing various paper documents. Background technique [0002] At present, organ bags are widely used in finance, office and business, etc., and are an indispensable tool for storing paper materials and documents. However, most of the existing organ bags have weak connections between the inner pages and the outer shell. , after many times of use, the inner pages tend to fall off easily. However, some firmly connected organ bags are mostly made of cloth or leather, and the price is relatively high, so they cannot be used on a large scale. Contents of the invention [0003] In order to overcome the above disadvantages, the present invention provides an organ bag with low production cost, a firm connection between the outer bag and the inner page, and the inner page is not easy to loosen. [0004] Technical scheme of the present invention is as follows: [0005...

AI Technical Summary

Problems solved by technology

[0002] At present, organ bags are widely used in finance, office and business, etc., and are an indispensable tool for storing paper materials and documents. However, most of the existing organ bags are not firmly connected between the inner pages and the outer shell. , the inner pages tend to fall off easily after multiple uses

And some organ bags that are firmly connected are mostly made of cloth or leather, the price is relatively high, and they cannot be used in a wide range

Images