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Packaging film recycling  #5 (51), 2007

As a rule, industrial and packaging films are manufactured from LDPE, as well as from LLDPE and HDPE. Their recycling is connected with certain problems that can be solved with the help of Sorema equipment

Company's profile
Sorema Company, founded in 1976 in Italy, is specialized in supplies of ready-to-operate recycling systems for plastic wastes. 30-year work experience and numerous equipment systems supplied to various countries of the world prove the leader's reputation of the company in this market segment. Sorema works in close cooperation with top corporations that develop recycling conceptions. Sorema offers complex recycling systems of capacity from several hundred to several thousand kg/h, able to satisfy requirements of both simple and complicated productions for manufacture of high quality finished goods providing most varied characteristics of raw materials.
Stretch and composite film recycling
Proceeding from properties of LLDPE stretch film - that is very thin and adhesive - a line for its recycling should have some special design. As such film becomes more and more popular Sorema Company has developed several projects for its recycling. Mixed LDPE and LLDPE film wastes can also be recycled, but only providing there is a small amount of material of the second type.

 Recycling problems
The main problem complicating film recycling is constant decrease in its thickness for the purpose of manufacturing optimization and improvement of strength properties of material. This way saving of primary resources is achieved, but it is not so beneficial to collect and recycle a thinner film. That is why in film recycling one should rely on such a partner as Sorema that has enormous experience in developing recycling technologies.

Marketing possibilities
Secondary raw materials from wastes of industrial and packaging films are applied for manufacture of: garbage bags; silage films, horticultural films; bags; films for construction purposes and various industrial packaging; shrink film (as one of the component parts, with regranulate rate of 10-20%); other wares (for example, pipes).

Economical aspects
Film production for industrial and domestic needs from secondary material is an economically beneficial business.
First of all, an advantage of working with film is that its sources are rather well concentrated. Thereby collecting films is cheaper than collecting other wastes that are more geographically distributed.
In the second place, film wastes are as a rule not heavily polluted. In offices and shops films are not used in direct contact with food products and do not get polluted during transportation. As such wastes could be relatively clean, cost of their recycling is rather low. Good quality of wastes enables to set competitive prices for secondary raw materials: they should be 25% lower than price for virgin raw material.
When prices for primary raw materials go down it becomes more beneficial to recycle polluted and low-grade (that means cheap) film wastes. Their recycling is more expensive due to additional washing and sorting stages, and also because of necessity to utilize residual wastes. Sorema offers various lines taking into account all these factors.

We invite You to visit our booth №9D55-9D41 in pavilion 9 at K-2007 exhibition in D?sseldorf, on October 24-31.


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