Benefits of Evoh material
2022-10-21
Benefits of Evoh material
Benefits of Evoh material
EVOH material is a new type of barrier material with excellent gas barrier, transparency, gloss, mechanical strength, stretchability, abrasion resistance, cold resistance and surface strength, as well as the highest thermal stability among high performance barrier resins, a property that allows for the reuse of production waste. It is used in the food industry for aseptic packaging, hot-filling and steaming bags, packaging dairy products, meat, canned juice and condiments, etc. However, the barrier property of EVOH decreases to a certain extent in high humidity, so it is generally used as an intermediate layer of composite materials to prevent affecting the shelf life of products.
What is Evoh's function as a new material for packaging? Let's take a look
1, high barrier: the barrier performance of different plastic materials varies greatly, coextruded film can be coextruded with a variety of different functions of plastic compounded into a film, to achieve the effect of high barrier to oxygen, water, carbon dioxide, odor, etc.. If your product is edible, or some medical supplies, then we can use the use of evoh material packaging for sale, which can extend his shelf life.
2、Strong function: oil resistance, humidity resistance, high temperature steaming resistance, low temperature freezing resistance, quality preservation, freshness preservation, odor preservation.
3, high strength: co-extruded film in the processing process has the characteristics of stretching, plastic stretching can be correspondingly increased strength, you can also add nylon, metallocene plastic resin and other plastic materials in the middle, so that it has more than the general plastic packaging composite strength, there is no delamination peeling phenomenon, good flexibility, excellent heat sealability.
4, no pollution: no additive binder, etc., no residual solvent pollution problems, green environmental protection. In some countries with environmental requirements must be a very good material
Then what do we need to pay attention to when using evoh material products?
First, EVOH is moisture resistant and chemically stable, nylon film is more affected by temperature, strong ultraviolet radiation will accelerate the aging of nylon film, so you should avoid direct sunlight when storing nylon film.
Second, drastic temperature changes will make the plastic very fragile. When we use nylon film, we must try to avoid heat and cold, so as to prevent nylon film thermal expansion and contraction and thus shorten the life.
Third, the humidity in the air will also have a certain impact on the performance of the plastic. Therefore, we must bear in mind that never put the nylon film in a humid, air-disturbing place, which may make the bag rotten; and the humid air will let the bag on the bacterial growth and reproduction, which will affect its use.