tear line in food packaging is very important for product experience

This is a huge blow to those who hope to get comfort from food. Fortunately, packaging manufacturers have found a solution - easy-tear line on food packaging.

The tear-off line originated in Japan, where the aging population is very serious. In order to facilitate the elderly to tear the package easily, the tear-off line was added to the package. The film layer in the food packaging can be easily torn off the package without damaging the entire film and affecting the sealing of the food packaging.

The convenience requirement has become one of the important factors in food packaging. If convenience is not taken into account, food packaging will become an unpopular commodity, making it difficult to occupy the market. Therefore, the details of easy tearing in food packaging are particularly important.

In the past, it was made by mechanical scratching, but the traditional marking method has defects and cannot control the depth of the mark. If it is too shallow, it is difficult to tear the product packaging, and the tear line is easy to tear, which is worthless; if the product packaging composite layer is damaged too deeply, the packaged product is easy to deteriorate, affecting consumer experience and product quality.

Laser scribing is the process of using laser to achieve tearing results on multi-layer composite packaging materials. Composite film materials are mainly used for food packaging, such as food packaging PET, PP or PE, which all have different characteristics of absorbing and emitting laser wavelengths, so when the film absorbs laser energy and disappears, the film layers of other materials remain intact and are not affected in any way. At the same time, the aluminum foil layer or other films coated with metal layers become a barrier to prevent the laser from entering other material layers, so the characteristics of these materials can enable laser technology to locate and mark packaging materials.

Carbon dioxide lasers are ideal for processing food packaging.

What's more, the laser marking technology of laser packaging is a non-contact and non-wear process to ensure that the goods in the packaging process will not be damaged by the packaging process, and to ensure the stability and reliability of the goods. Laisai Laser's online laser printer can achieve fast marking, clear and lasting marking, clear and beautiful marking effect, and cannot be erased.