Silage film is a piece of equipment used in agriculture and animal husbandry. It is used to wrap and store fodder hay. This is so that the animal feed can be durable but does not lose its nutritional content in it. Did you know that there is a type of wrapping called blown LLDPE silage film?
There are several types of animal feed silage wrappers. Starting from the materials used, the method of manufacture, to the shape. Blown LLDPE is one of them. Will using this product benefit? Why should you use this product?
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Meaning of LLDPE
LLDPE stands for Linear Low-Density Polyethylene, which is low-density polyethylene in linear form. This polymer is one of many types of polymers. The molecular branch of LLDPE is shorter than that of HDPE. For this reason, the intermolecular reactions are not very strong.
Although it has a low density, this type of plastic or polymer has advantages. Due to its intermolecular tenacity, LLDPE has properties that are more flexible and malleable than other types. In addition, this type is easy to expand and stretch because it has high tensile strength. However, this polymer has a lower thickness or can be said to be thinner than HDPE.
Of these advantages, LLDPE is used as a silage wrapping material. Known for its blown LLDPE silage film technology. In this case, blown LLDPE is one type of blown film. Then what is a blown film? Is it more profitable to use this product to wrap livestock silage? Blown film is a basic term that you need to know first before discussing blown LLDPE.
The Full Definition of Blown LLDPE
Blown film is a technique of making a silage-wrapping film by pulling the melt from the biaxial. This process uses the help of air pressure to produce the desired pull. Before the withdrawal process, the mold for the film is formed in a circle first. It aims to gain space, so the film can expand when blown or pulled. After the withdrawal process, the blown film is then cooled so that the polymer is completely solid.
In general, a blown film from the withdrawal process is used for various purposes. Among others, for food packaging, bags, and so on. Meanwhile, blown LLDPE silage film is used especially in the livestock sector. Namely to preserve, wrap, and store animal feed straw. Blown silage film is widely used because of its stickiness and ease of obtaining oxygen for straw.
Blown Film Making Process
Making blown LLDPE silage film is the same as making in general. First, melt the plastic to get a tube-like shape with thin walls. The hole in the center of the tube will be filled with air. This is where the air enters to inflate the tube so that it resembles a balloon. If the tube is like a balloon, wait until it cools down.
The tube cooling process is carried out by air at high speed. This air blows to the top of the tube. Air is generated from the ring-shaped apparatus. It could be said to be an air ring. This tool is mounted on the top of the mold.
Furthermore, the tube movement is still being carried out. In this process, there will be an even distribution of the tube. The tube will be flat or even. At this stage, there will also be air exchange in the tube. Then, both ends of the tube will be cut to produce an even end. The tip will form a flat film that can be rolled up.
The flat film from the melted plastic is then rolled into bales. The plastic rolls are then packaged in such a way that they can be distributed to consumers. Consumers generally use this blown LLDPE silage film to store animal feed straw. Not only that, but other consumers, such as industrial also use it for containers.
Advantages of Using Blown Film
In some applications, the blown film provides advantages such as being able to provide thickness, length, and width that can be controlled as needed. The second advantage is that it can be combined with other materials if productivity is increased, and it can remove plastic edges that occur due to different temperatures that cause film extrusion to be unsuccessful.
Blown film is one of the techniques used to produce plastic sheets. You have the right to choose one of the other techniques. But if you have blown film, it will certainly make it easier to use.
Have you got an idea if you use blown LLDPE silage film on your animal feed? What are you waiting for? Immediately choose Silopak, a factory that provides blown film and other products? We produce the best products because we use high-quality materials. We also have experience serving consumers overseas since 2011. Be sure to get in touch with us immediately to get more detailed information.