The twine polypropylene is in special demand in the market of packing materials. What is this product and what is it used for? Let's try to understand this issue.
Polypropylene twine - what is it?
Polypropylene material belongs to the classpolyolefins. It is an environmentally friendly product, perfectly safe for human health and the environment. Therefore, polypropylene twine also does not bring harm. How is it made?
Production of polypropylene twine
- The raw material - polypropylene - is fed into the storage bin.
- From this department, the finished granulate enters the drying compartment. The temperature here is regulated from 60 to 110 degrees Celsius.
- Then the raw material goes back to the storage hopper, then to the extruder.
- Here the polymer is melted, filtered, then fed to the molding head of the extruder.
- In the form of a film web, the material enters the cooling drum. Here it hardens.
- Then the film is cut into ribbons.
- Next is the process of pulling tapes intocamera orientation. This is due to the difference in speeds of the second and first seedwarts in an environment of sufficiently hot air (the temperature in the orientation chamber is at least 150 and at most 210 degrees Celsius).
- The tape film on the fibrillator forms filaments of a mesh structure. Then she is wound on reels.
Product application
Polypropylene twine is actively used in the following industries:
- Agriculture;
- meat processing industry;
- for the production of ropes with different diameters;
- for household packaging.
In some industries, the aboveproducts have technical advantages. With this packing thread, farmers prefer to bind bales of straw. Experts note that the person who began to use polypropylene twine is unlikely to ever return to sisal.
Product Benefits
- high resistance to alkalis and acids;
- has excellent thermal insulation properties;
- not affected by organic fertilizers;
- quite economical material;
- completely safe and environmentally friendly;
- increases productivity;
- it is safe to use (for example, steel or galvanized wire can damage human hands);
- significantly reduces the cost of packaging.
In addition, this packaging material does notrotting and has high fibrillation. It is very easy to handle. Although, as experts note, this polypropylene thread has one drawback. It collapses under the influence of sunlight. But such an effect should be lasting. However, if the production of the above packaging material in its composition were added special components that increase durability and light fastness, this problem is eliminated.
Another advantage of polypropylene yarn is its high buoyancy. It is also resistant to bending and abrasion. It is an excellent dielectric, very convenient when lacing and strapping.
Polypropylene twine, the price of which is 60% less than the cost of a metal thread, depending on the type, can be bought for 105-300 rubles. per kilogram.
This product is an excellent packaging material. Excellent technical characteristics of polypropylene yarn contribute to the high demand for it.
