Reusable bag and manufacturing method thereof

Abstract

The invention discloses a reusable bag and a manufacturing method thereof. The reusable bag consists of a bag body and a handle hole or a handle belt on the bag body, wherein a handle part is arranged above the handle hole or the handle belt; two side faces of the bag body are folded sides; the bottom of the bag body is a folded bottom; and the two sides of the bag body are side thermally-sealed lines. The method comprises the following steps of: 1, unwinding package materials; 2, folding edges of the handle part; 3, performing ultrasonic welding on the folded edges; 4, forming the handle hole; 5, trimming the bag body; 6, overturning the bag to fold the bag body along the middle, overturning the surface positioned outside during normal use inside and superposing the welded edges together; 7, folding the folded sides; 8, folding the folded bottom at the bottom of the bag body and flatting the folded bottom by pressing; and 9, welding the two sides of the bag body well. The method greatly simplifies procedures and has the advantages of simple procedure and high efficiency and speed. Compared with the conventional reusable bags, the manufactured bag has higher strength and firmness and more charm by saving the operation of cutting and thermally sealing for one time.

Description

technical field [0001] The invention relates to the technical field of environmental protection bag manufacturing, in particular to a method for manufacturing an environmental protection bag by performing steps such as hemming and ultrasonic welding on existing materials. Background technique [0002] With the continuous improvement of people's awareness of environmental protection, environmental protection bags have been vigorously promoted and applied by the government and social organizations due to their advantages such as washable, reusable, and firm structure. In this case, the demand for environmental protection bags has greatly increased, and Its own quality and production cost become the key factors to promote the public's acceptance of eco-bags, and the quality of the production process is directly related to the quality and cost of the product itself. At present, the various environmental protection bags used on the market are made of various materials, such as no...

AI Technical Summary

Problems solved by technology

That is to say, the entire process of the existing technology of making environmental protection bags requires many processes to complete. This manufacturing method has not changed for a long time, and the entire industry has been using it until now. However, the processes involved in this traditional method are more complicated. There are many parts that are welded and heat-bonded, which makes the production efficiency not high enough, and the produced bags are not strong enough and not beautiful enough. However, consumers often report accidents that the bottom of the bag cracks and the items fall to the ground.

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