Frequently-Used Film Of Husbandry----Silage Film

Using ensilage method,in the absence of the air,the crop`s nutrient substance can be absorbed easily by lactic bacteria fermentation so that can maximize reduce the loss of the nutrient substance from harvested to feeding.No mater what kind of the system be used ,the main purpose of the silage and storage system is to remove and isolate the air during the process of silage.The major factors including the reaping speed ,moisture content,the length of the crop and compactness play an extremely important role in the fermentation process and the loss in the storage.Generally speaking,effective fermentation can produce more delicious and digestible silage.In the meantime it can improve the quality of milk produced by animals and increase animals meat rate.

The common silage methods: Packing or Stacking.Compared with stacking,there are more advantages of packing as follow:

1) Higher Packing and Flexible feeding;

2) Higher utilization of herbage;

3) Reducing the loss of the dry material;

4) Due to Aerobic respiration reduction at any time;

5) More convenient for mixed feeding between different crops;

6) Lower cost of transport and storage

7) Lower risk of population

8) Flexible storage methods that the forage bag can be placed outdoor and transported to other places conveniently.

The 80s of last century,polyethylene silage film firstly turned up in the United Kingdom ,and gradually became popular in Austria ,Europe and Japanese etc..

China`s silage film still in the early stages of development.Many leading enterprises produce it primarily for export while the domestic only use it with a small amount.With the development of wrapping equipment at the downstream,the film consumption of domestic is growing rapidly.

There are both blowing film and casting stretch film products in domestic,but the producers are tend to use polyethylene material which are frequently adopted in blowing film to produce the casting stretch film because of its higher yield and better viscosity.The silage film is generally divided into three layers : Two surface layers and one middle layer.Producers often add the necessary colored master-batch into middle layer,viscous master-batch into the two surface layers and ultraviolet stabilizer in all three layers.

Silage film has a high performance requirements,resulting in the content of metallocene polyethylene in the formula is high.At present,producers are more willing to use PIB tackling master-batch than using liquid PIB to provide the viscosity for silage film.

Therefore, the terminal users has some performance requirements of silage film as follow:

1) Easy to process(Blowing /Casting);

2) Good viscosity;

3) Strong tensile-strength;

4) Puncture resistance;

5) Retention /Anti deformation;

6) Anti-tear;

7) Anti-resistant;

8) Good water/oxygen barrier;

9) Good coloring;

10) Easy to wrap and cut off.

In recent year,the demands for silage film`s performance has been increasing,so the polyethylene raw material is facing an unprecedented challenge.A high performance reinforced polyethylene material that from the well-known raw material company of Americian is widely used in the market. Resin has an excellent anti-tear and and fall resistance that can obviously reduce the loss rate of silage film while packed or stacked.

Statement: This article is from INNOVATIVE FILM SOLUTIONS.