Laser marking technology makes it easier to process easy tear lines for product packaging

 In life all kinds of flexible packaging material products can be said to be everywhere, with high heat shrinkable film (hereinafter referred to as "heat shrinkable film") as a representative, often used in food, beverages, detergents, cosmetics, electronic parts and so on.

Why a small circle of fine line in the product packaging role seem more and more important? There are three main reasons.

Heat Shrink Film Tightness

Heat shrink film packaging process is under heating conditions, the packaging film will be in the form of sleeve labeling along the container contour of rapid contraction tightening, and ultimately create the effect of labeling close to the bottle, and in the contraction process, if there is no this circle of breathable holes, there may be incomplete contraction of the packaging film, part of the area of the bulge and other problems, increasing the rate of product defects.

Consumer take-up

In products made of flexible packaging materials, such as various snacks, wine, and beverages, the existence of easy-tear lines makes it more convenient for users to tear the packaging directly with their bare hands to access it without the need to use scissors and other auxiliary tools.

 

Incidentally, the reason why there are easy-tear lines on beverage products to make it easier for consumers to tear the packaging film is that some merchants, in order to carry out promotional activities and at the same time to ensure the confidentiality of the QR code information before the official sale of the product, usually mark the QR code with the winning information engraved on the inside of the packaging labels, and the existence of the easy-tear line is to make it easier to peel and scan the code.


Easy secondary recycling

In the recycling process of plastics and glass, which are recycled waste products, it is often necessary to separate containers and labels individually, and the existence of easy-tear lines can better allow packaging film labels to fall off, which is another reason why there are easy-tear lines for plastic container packaging bottle labels.



Unique benefits of laser applications

Compared to traditional mechanical means such as screwdrivers or presses, laser engraving is not only better in terms of lower losses per unit of production time and no consumables, but it also does not come into direct contact with the product packaging, avoiding possible contact contamination problems.

 

Traditional tools scratching easy to tear line strength is not good control, too deep easy to scratch, too shallow lead to product packaging is difficult to tear;

 

The laser can be adjusted according to the thickness of the composite film, production line speed (laser with the efficiency of up to 300m / min), shrinkage and stretching strength of the timely adjustment of the perforation intervals, the precision of the line width, etc. is also a great learning experience, not only to ensure that the finished product is easy to tear, but also ensure that heat contraction is not easy to pull off.

 

Easy to tear line equipment installation needs a relatively small footprint, so in large quantities, a wide range of packaging film processing engraving, can be integrated according to the specific production line, simple and easy to start at the same time, a person can complete the laser easy to tear line marking response work, without additional development of specific sites, saving the cost of use and labor costs.

 

In the future, the use of easy to tear line will become more and more popular, and laser technology in the processing of easy to tear line will also bring greater economic benefits to users.

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