Sometimes the food four-sided bag will be rejected by the user because of the smell, and some even infected with the built-in smell of food, resulting in the user to claim compensation, which makes many manufacturers feel powerless, so what is the cause of this problem.

The reason for the peculiar smell of these packaging bags may be the smell of printing ink, ink solvent, some glue, or the smell of the inner film of the composite packaging. Under normal circumstances, we need to solve the problem from the source and minimize the color when printing. Choose to avoid full-page printing patterns, which will bring greater smell. When choosing printing ink, do not use ink with strong smell for printing, and try to improve the printing speed, reduce the viscosity of the ink, reduce the coating amount of the ink, keep the air ventilation in the drying oven and the workshop, try to reduce the smell of the ink to a lower level, keep the exhaust of the drying air duct of the compound machine unobstructed, properly glue, do not use ester solvents with more impurities and moisture, so as to reduce the smell on the packaging bag, to try to choose a good barrier film, the inner material of the composite packaging, so that even if there is a solvent residue and smell, it will not touch the food.

What are the problems with the custom manufacturers of food four-sided sealing bags?

Food processing enterprises are facing fierce market competition, and some enterprises are eager to improve their competitive advantage in the industry. According to the investigation, some food processing enterprises begin to pay attention to the problem of food four-side sealing bags, and will find formal and reliable food four-side sealing bag production enterprises, which can improve the packaging effect of food, make consumers favor and obtain good sales.

In fact, there are many manufacturers engaged in the customization of food four-sided bags on the market, and their comprehensive strength is different. When choosing a food four-sided bag manufacturer, there are usually several issues to consider.

1. packaging bag custom manufacturers industry ranking, in general, the higher the ranking, the more recognized by food processing enterprises, custom packaging bags in the market is more popular, this kind of packaging bag production enterprises in the technical strength, production technology and other aspects have obvious advantages.

2. food processing enterprises should cooperate with packaging bag customization manufacturers to do a good job in packaging bag design. The better the packaging bag design, the better the production effect. Food processing enterprises should inform the designers of relevant requirements before designing, and put forward the modification opinions of design style to ensure the design of appropriate packaging style.

The selection of 3. materials is very important. There are many materials that can be used to make packaging bags. In order to respond in the market, good materials are environmentally friendly materials, which can ensure that the packaged food meets the storage conditions and does not pollute the environment. Plastic bags are closely related to our lives. They can be seen everywhere in supermarkets and daily life. Therefore, our company has replaced most of the ink with ink printing. The principle of ink printing machine is to use water brushes, ink printing is a special printing technology. Ink printing is environmentally friendly. With the advancement of science and technology and the continuous improvement of printing technology, the printing of plastic bags is becoming more and more exquisite. What are the printing methods of plastic bags and packaging bags?