As supermarkets are booming today, it is not difficult to find more and more bright packaging on the shelves of the big supermarkets, especially in the beverage area. In fact, the use of such labels is becoming the trend of new packaging, and has gradually spread in the packaging of food and cosmetic products.

In the past few decades, heat shrinkable sleeves have been driven by strong demand from birth to popularization. With the continuous innovation of materials and technology, today's heat shrinkable sets change the form of the retail packaging and bring up the escalating shelf attraction for the packaging. The heat shrinkable sleeve label is a sleeve label, which is a thin film label printed on plastic film or plastic pipe by special ink. During the labeling, in the heating condition, the contraction label will quickly shrink along the outer ring profile of the container and close to the surface of the container to create the effect of "from the head to foot" in the full range of the bottle body.

 

From the overall form of the sleeve label, its share in the global label market is second only to the wet glue label and the sticker label. It is the fastest growing category in all labels, and has been considered as the main competitor of the sticker label. The annual growth rate is expected to reach about 15% in the future.

 

The process of making the heat shrinkable sleeve is not complicated. First, it is printed on the film material by printing in the way of printing, and then a layer of white ink is printed to improve the scratch resistance and safety shrinkage, and the protection container is discoloring from the UV light source. Then, the printed reel material is processed into tubular and automatically or manually placed on the container to be labeled. Finally, the container that has been tagged is heated by the hot air or infra-red channel, and the heat is used to shrink the label and stick it to the surface of the container.

 

From the above production process, the heat shrinkable sleeve has many advantages. First, the heat shrinkable sleeve is mainly used in gravure printing. The print and text are bright and saturated. Because it can decorate the packaging container, it can highlight the appearance modeling of the goods, improve the appearance and decoration of the goods, and produce a good shelf effect. Two is the labeling process without the use of adhesive, and the label can be used. The container combined in one, can realize the scale of the product line operation, greatly reduce the production cost; three, it adopts the way of printing, can play the role of protecting the graphic and text, and enhance the wear resistance of the heat shrinkable sleeve in the link of transportation and sale.

 

From the aspect of functional requirements, the heat shrinkable sleeve has the characteristics of moistureproof, anticorrosion, anti impact, tearing resistance and tasteless and non-toxic; it can play the role of anti-counterfeiting; protect the consumer from the accidental injury caused by the breakage or rupture of the container. Most importantly, this label can be recycled and has significant advantages in cost saving and environmental protection. However, there are many difficulties in the design process of the heat shrinkable sleeve.

 

In the production of heat shrinkable sleeves, the PVC film is widely used in the market. This film has many advantages, such as waterproof, fire resistance, high transparency, high gloss and high shrinkage, but it is easy to produce toxic gas when the material is burned, which is not conducive to environmental protection. As a new material, OPS heat shrinkable film is a kind of body packing material which meets the requirements of environmental protection. It has many advantages, such as high strength, high rigidity, good gloss, high shrinkage, and food hygiene standards. However, because of the few enterprises producing this film on the market, it can not fully satisfy the market. Membrane demand.

 

For the ink, its quality directly affects the printing effect of the heat shrinkable sleeve logo. It has been proved that UV printing ink is a very good choice, and its greatest advantage is that it can achieve high color strength by curing drying, which also brings great challenge to the traditional intaglio ink.

 

In addition to improving the quality of raw materials, high-speed labeling equipment is also essential. Only by combining technology with raw materials can we create more markets for heat shrinkable sleeves.