Self-supporting zipper bag manufacturers: common problems in the production of food bags

When it comes to food bags, we all know that the food we eat in our daily life will have a variety of outer packaging. This outer packaging is called food packaging bags. Food bags include color printing food bags, bright color food bags, high temperature cooking food bags, etc. So what are the reasons for the quality problems in the processing of bright vacuum food bags we usually use?

They are: improper selection of adhesive, technical problems and substrate reasons, improper selection of adhesive; The color of the adhesive itself is dark; The adhesive lacks fluidity and flattening and cannot be spread on the base film.

Technical problems: the inlet temperature of the baking channel is too high or there is no temperature gradient, and the inlet temperature is too high and monotonous, which causes the solvent on the outer surface of the adhesive layer to evaporate and the outer surface to crust. Then when the heat penetrates into the inside of the adhesive layer, the solvent under the adhesive layer vaporizes, breaks through the adhesive layer to form a ring, and the adhesive layer is not ignited round by round.

The rubber roller or scraper has disadvantages. It cannot be pressed at all, forming a neutral, not bright, and there is too much dust in the air. After gluing, there is dust in the hot air blown in the drying tunnel. On the surface of the glue layer, it is sandwiched between two base films when compounding. There are many small spots to make it opaque.

Self-supporting zipper bag manufacturers: how to customize the packaging bag?

In daily life, when we buy things we need at home, we often see that most of our products are plastic bags. Each kind of plastic bags is different. They are customized by manufacturers according to their own needs. Let's take a look at the precautions for customized plastic bags.

The main points of customization of plastic packaging bags When the plastic packaging bags are customized, the types and sizes can be determined by themselves, because each merchant is different, and their products are also different. Take the convenience bags of supermarkets as an example. Generally speaking, there are three types of large, medium and small. However, these types are not completely consistent among manufacturers. Sometimes, the types can be adjusted according to the specific needs of supermarkets.

And supermarket convenience bags must be printed with a unified national chain logo, food safety bags, and even food safety-related logos before they can be put into use. When making a customized plastic packaging bag, its overall planning is also very important. Each company will have its own different characteristics and different signs.

Then when making plastic bags, it is expected that you can directly make your own characteristics and signs into plastic bags. This is also an advertisement. The above content is some matters that need to be paid attention to when making plastic bags. In addition to these aspects, it is also very important to choose a regular plastic bag manufacturer. Only regular manufacturers can ensure that customized plastic bags can be put into the market after being produced and are safe, especially when plastic bags come into contact with food.

Self-supporting zipper bag manufacturers: Xiaobian will explain here first. If you need to make food packaging bags or zipper bags, you can consult our manufacturers.