Production technology of easily-tearing packaging bag

Abstract

The invention provides a production technology of an easily-tearing packaging bag. The technology comprises the following steps that (1) plant fiber paper is arranged in a covering mode; (2) cooling is carried out; (3) printing is carried out; (4) film covering is carried out; (5) oil coating is carried out; (6) hot stamping is carried out; (7) the packaging bag is packaged; (8) mounting is carried out; (9) sealed edge folding is carried out; (10) line cutting is carried out; and (11) after an object is contained in an unsealed packaging bag, the back face of a convex strip paper is sealed on the inner side of the back face of the bag body in a hot-seal mode, the top end of a bag body is subjected to hot sealing, and the temperature of hot sealing is 120-180 DEG C. According to the production technology, a flat-pressing technology is used, production cost can be lowered, subsection cooling is set, so that buffering cooling effect is achieved first, time is saved, efficiency is improved, the bonding degree of the plant fiber paper and a PE film is improved, cost can be lowered by room temperature cooling, the defective rate of products is lowered, the cost of raw materials is saved, namely cost increasing caused by tone-determining layout page using is avoided, cost increasing caused by hard plastic pulling strip using is avoided, and accordingly resource waste and environment pollution are reduced.

Description

technical field [0001] The invention relates to a production process of a packaging bag, in particular to a production process of an easy-to-tear packaging bag. Background technique [0002] Packaging bags are used to install edible items or small objects, etc. The advantages of using plastic packaging bags are that they have a relatively long service life, save costs, and are light in weight. [0003] In the prior art, in the plastic packaging bag products, the raw materials of the bag are purchased directly, and the inner layer of the packaging bag is covered with a layer of PE film. This kind of film is often not safe to directly hold food. The outer layer of the bag is forcibly pulled apart by the hard plastic strap, and it can be thrown away after being pulled apart. This kind of hard plastic strap is extremely difficult to degrade, and there is little or no recycling, which will increase the cost and increase the cost. The increase of the production process is easy to...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in the plastic packaging bag products, the raw materials of the bag are purchased directly, and the inner layer of the packaging bag is covered with a layer of PE film. This kind of film is often not safe to directly hold food. The outer layer of the bag is forcibly pulled apart by the hard plastic strap, and it can be thrown away after being pulled apart. This kind of hard plastic strap is extremely difficult to degrade, and there is little or no recycling, which will increase the cost and increase the cost. The increase of the production process is easy to cause environmental pollution and waste of materials; generally, the internal space of the existing packaging bag is small, so the capacity is small, and it cannot be sealed in time when the food is not finished, or the sealing effect of the seal is not good. Well, the existing plastic zipper is not easy to butt joint when it is pressed, and it is easy to form air bubbles and wrinkles when sealing the joint around the packaging bag, so the airtightness is also difficult to guarantee

[0004] During the existing production of this packaging bag, it is generally necessary to first cover the purchased wrapping paper with PE film on the inner layer, print the pattern on the outer layer, and then cover the pattern with EVP film (matt film) to protect the pattern, and then Use UV technology for bronzing or silver, and then carry out concave pressing on the sealing part of the packaging bag. The existing concave pressing needs to be adjusted. The cost of this adjusted version is relatively high, and 2 sets will cost 10,000. Therefore, the cost is increased, and then the zipper is ironed on the sealing part, and then folded and edge-sealed; while the existing process is time-consuming and costly, it is easy to cause a high rate of defective products

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