Stretch film equipment to the development of multi-layered and large-scale

In the highly competitive stretch film market, the more film layers mean more market share, so the product is changed from 5-layer film to 7-layer film or 9-layer film, and the application is displayed by improving performance or reducing cost. Advantage. Affected by this, the production equipment for stretched films is also moving toward multi-layer and large-scale development.

At present, North America's new investment in the construction of the device is to prepare new, high-performance multi-layer thin film devices. The 5-layer stretch film introduced in the mid-1990s generally uses 4 extruders and a specially designed 5-layer hopper. Now North America's five-layer stretch film production accounts for 40% of the total stretch film production. In recent years, North America's newly installed cast stretch film production facility has been able to produce equipment with five or more layers of film, and has continuously updated the number of layers, starting with seven layers and later increasing to nine layers, now processing plants and machinery. The production plant is discussing and preparing to prepare processing equipment capable of producing 11 layers, 14 layers, or even more layers. Gary Oliver, a senior scientist at the US company Cloeren, believes that the microlayer feedblock technology now being used for industrial barrier films should also be used for stretch film production. The new technology can produce Angstrom (1 Angstrom=0.0001μm) grade films. The processing plants are very interested, but no one has yet conducted the test.

The competition of stretch film manufacturers is actually a competition of profits, and an increase in output means an increase in market share. Stretch film production equipment is becoming larger and larger, producing a large number of product layers and a corresponding increase in output. Five years ago, the standard cast film apparatus had five 20-inch diameter rolls, and now uses six rolls. As a result, the number of thin film layers is increased, and it is possible to use a resin having a low cost performance range (for example, metallocene LLDPE) or a butene LLDPE as a raw material, thereby reducing costs and increasing competitiveness.