The analysis of the cause of breakage of eight-sided sealed packaging bag and how to buy

Today's society will develop very fashionable, everything in the world is in innovation. Of course, the eight edge sealed packaging bag not to be outdone, continuous innovation. The eight-sided sealed packaging bag is very popular in the packaging market by virtue of its advantages. However, some bags can break. Broken bag is an important aspect that affects the quality of product packaging. There are many factors affecting the damage of eight-sided packing bag. The following is the analysis of the reasons for the damage of the eight-sided sealed bag.

Bag-making process: High bag-making temperature leads to the degradation of thermal sealing material performance and affects the bag-breaking rate; Excessive bag-making pressure will cause the thermal sealing material to be extruded, and the thermal sealing effect of the sealing door will be reduced, leading to bag breakage.

Material: The material must have sufficient thickness, lack of thickness will lead to insufficient bag strength, which then leads to bag problems: too much recycled material in the material and insufficient bag strength will also lead to the bag.

The impact of packaging materials: when packaging some heavy or powdery items, such as salt, laundry powder, etc., after filling these items, before thermal sealing, the air in the bag should be discharged to reduce the force of the bag wall, so that the solid direct force, thus reducing the damage to the bag.

Peel strength of composite film

Eight-sided sealed packaging bag should also pay attention to the strength of composite film, if the peeling strength of composite film is too low, it is difficult to meet the requirements of multi-layer composite material at the same time, can not be better dispersed in the process of decline, in addition, in high temperature cooking bag, due to the poor heat resistance of some adhesive, especially in some complex structures, high temperature cooking will also lead to edge cracking, composite film stratification phenomenon.

At present, the market of eight-sided sealed bags is very hot, especially eight-sided sealed nut bags, but the price of eight-sided sealed bags is not low. Today, we will talk about the purchase and maintenance of eight-sided sealed bags.

How to buy an eight-sided sealed bag?

Print quality: See if the combination of these two colors has an obvious third color the higher the fidelity of the physical painting the better. See if there are any wire drawing, fogging, blocking, leakage and other phenomena.

Bag materials: eight-sided bags should have no odor. Bags with bad odor generally do not meet the health standards, and may also affect the normal use of the bags.

How strong the bag is: Generally speaking, it is difficult to tear open the bag by hand. If it is evenly torn from the heat sealing center of the packaging bag, it indicates that the heat sealing of the packaging bag is poor, and the packaging is easy to be damaged in the production process. Good heat seal quality if torn from seal edge.

Appearance uniformity: First of all, observe the higher the hardness and flatness of the bag, the better, and whether the cut edge of the bag is neat. The neater the better.