​stretch film and polyolefin shrink film 5 features in china

stretch film and polyolefin shrink film 5 features in china

Stretch film and polyolefin shrink film is a new type of adhesive packaging material in line with environmental protection requirements. Stretch film and polyolefin shrink film have high strength, large rigidity, stable shape and good gloss and transparency. Convenient processing, easy coloring, good printing performance, high printing resolution, for the pursuit of fine printing trademark, it is a material progress. Due to the stretch film and polyolefin shrink film of the high shrinkage rate and intensity, can with different shapes of container tightly, so it can not only print out the fine design, also can meet all kinds of different shape of the use of novel packaging container, non-toxic tasteless, resistant to oil, up to the standard of food hygiene stretch film and polyolefin shrink film can let designers use eye-catching color, achieve 360 ° label design, Give full play to their creativity and imagination, to make drinks and other commodities in the label use pattern is more vivid, the image of the highlights on the shelf, to produce an unexpected container effect.

Based on the characteristics of stretch film and polyolefin shrink film, it is preliminarily concluded as follows:

1. Environmentally friendly stretch film and polyolefin shrink film. The environmental adaptability of stretch film and polyolefin shrink film is a driving force for the development of this new material and an important reason to replace PVC as a label material. With the development of world economy, the concept of a continuous, environmental protection and the request is constantly deepening and popularity in recent years, the so-called continued in order to effectively, the moderate use of resources, are put forward in the development of new products for recycling or energy into such a request. Stretch film and polyolefin shrink film and PVC compared with such a prominent point, it not only can be recycled, even after printing trademark can burn into energy, because of its non-toxic tasteless so do not produce any harmful gases, so won't produce any pollution. Instead of PVC were burned by chlorine (burning after chlorine will damage the ozone layer), even if the recovery, because of the cost of recycling is bigger also, and again use the value of is too low, and do more harm than good.

2. High shrinkage. Stretch film and polyolefin shrink film makes up the defect of the traditional shrinkable film blowing process, its transverse shrinkage rate can be as high as 80%, the index of high shrinkage rate, can make the logo on the different shapes of container implementation stick put oneself, highlights of the container body, make the packaging more vivid image, also can make riot crack and sealing and health effect.

3. Stable shrinkage performance. When stretch film and polyolefin shrink film in the encounter in the process of thermal shrinkage variation, completely conforms to the trademark use heating form, in the process of the container and the filling of beverage are not cause great influence, visible in the label of energy consumption in use did not increase, it will drop slightly. Similarly, a lower natural shrinkage rate, which allows the expansion of the thermal shrinkage film to have a qualitative overshoot. Due to the OPS heat shrinkable film under 60 ℃ temperature, almost no shrinkage, which makes heat shrinkable film used in the process of transportation, storage, packaging, film valid for too short a series of confusion and problems resolved, provides technical support for the label producer and create conditions for cost reduction.

4. Economic applicability of stretch film and polyolefin shrink film. Apart from the advancement in technical indicators, the economic utility of stretch film and polyolefin shrink film cannot be ignored. Preliminary processing and plasticizing again, in the process of the membrane of OPS (commonly known as fish-eye) almost no crystal point, thus bring printing production yield reduction by crystal point problem, fundamentally change; Because of its good smoothness, PVC heat shrinkable film can completely change ever can only narrow printing problems, can satisfy the requirement of wide high speed printing, for improving the efficiency and the effect that bring producers to reduce costs.

Transparency. After temperature-plasticizing, the rigidity of polymer chain segment is increased, and intermolecular forces are increased, so the properties of hard and transparent substance are shown at room temperature. In stretch film and polyolefin shrink film optical performance, is the main one is that it can through to all wavelengths of visible light, which makes stretch film and polyolefin shrink film with high gloss, in the production of this two point labels to the basic requirement of the material, no certain rigidity, the stiffness of the trademark is not certain, can't adapt to the speed of marking machine set of requirements. In the same way, the high transparency and easy coloring characteristics of the film have laid a foundation for the production of exquisite trademarks, which can be designed with a variety of different shapes and patterns