Method for producing plastics film packing bag

Abstract

The invention relates to method for producing a plastic film packaging bag, which can improve the production efficiency and reduce the production cost. The method comprises the steps of folding the edges of a plastic film, overlapping the edges, hot welding the plastic film and the like. The method is characterized by further comprising the following steps: firstly, opening pores on a running plastic film; secondly, sticking easy-to-pull stickers on a running bottom paper roll stuck with the easy-to-pull stickers to the plastic film opened with the pores, and covering all the pores on the plastic film by the easy-to-pull stickers; thirdly, separating the easy-to-pull stickers and the bottom paper roll, and recycling the bottom paper; and fourthly, performing the forming steps of edge folding, edge overlapping, hot welding and the like on the plastic film opened with the pores and stuck with the easy-to-pull stickers. A tool used for opening the pores is a hob. The step of separating the easy-to-pull stickers from the bottom paper comprises that the bottom paper stuck with the easy-to-pull stickers contacts the plastic film with the pores, and the easy-to-pull stickers are stuck to the plastic film with the pores when the easy-to-pull stickers break away from the bottom paper gradually. The bottom paper is a glycin release bottom paper the surface of which is coated with light release silicone oil. The method is applied to producing the plastic packaging bags for sanitary towel, paper towel, food, tea leaves, commodity and the like.

Description

technical field [0001] The invention relates to a method for making packaging bags using plastic films as raw materials, such as packaging bags for sanitary napkins and tea bags. The invention relates to a production method for plastic film packaging bags. Background technique [0002] Chinese patent 032616880 discloses a packaging bag for sanitary napkins. This patent application believes that the packaging bags for sanitary napkins commonly seen on the market today are large packages that can contain several individually packaged small packages. When using, the large package must be destroyed. It is not convenient to use, and it is not conducive to the cleaning of the large package, and it will cause too much plastic waste, which is not conducive to environmental protection. . The purpose of this utility model is to provide a new type of sanitary napkin packaging bag, which is not only convenient to use, but also beneficial to cleaning and environmental protection. In or...

AI Technical Summary

Problems solved by technology

[0002] Chinese patent 032616880 discloses a packaging bag for sanitary napkins. This patent application believes that the packaging bags for sanitary napkins commonly seen on the market today are large packages that can contain several individually packaged small packages. When using, the large package must be destroyed. It is not convenient to use, and it is not conducive to the cleaning of the large package, and it will cause too much plastic waste, which is not conducive to environmental protection.

The sanitary napkin packaging bag of this structure is generally made by special equipment (plastic film packaging bag forming machine), but the opening operation is performed on the sanitary napkin packaging bag, and the adhesive sticker (easy-to-pull sticker) is pasted on the sanitary napkin packaging bag in advance. The operations near the opening of the napkin packaging bag are carried out separately, and are mainly manual operations. Therefore, the traditional plastic film packaging bag forming machine is used to produce sanitary napkin packaging bags, which has low production efficiency and high production costs.