Polyethylene in food packaging

Today, the use of multiple layers, especially polyethylene film, has become popular and the use and efficiency of these materials has increased. are from the polyethylene family and are generally known as LLDPE in the plastic wrapping industry. LDPE, LLDPE alone have a limited use in packaging and are always used in combination with other polymers such as HDPE and provide useful properties in the industry. More attention to this material. Investment in its production has also increased. Today, it is one of the most common types of LDPE film production for three-layer and five-layer milk bags, but in the past it was used only because of its cheapness.

Iran is one of the countries It produces a good grade of polyethylene, namely LDPE, LLDPE, but it has not presented a special phenomenon in the production of packaging wrappers made of these materials. It can be used for general applications of this polymer in three-layer milk wrappers, stretch film, shrink film and so on. .. Cited. These are not offered to the market in a specialized way and if they are offered, they are not offered by experts. That is, the mechanical and physical properties of the wrapper should be provided with cheaper granules and even recycled granules, which in this process is intended to protect the contents of the package from recovered materials. American and Chinese samples found in the market are white ( (Brightness) is less than 80%, which can be easily written on, which means that the issue of recycling is present in the scene and is added in the production process, and this is the reason that it is not paid attention to in Iran. which is used in the packaging of fruit juices, Iran is one of its big consumers. The production of Dupack film requires LLDPE film. Currently, this film is imported to Iran from Spain, Turkey and some other countries. The production of these films has also started in Iran.

What is common in the market and used by everyone is agricultural wide films, films used in construction operations and bags of products in fruit and vegetable markets. In the field of printing and packaging, with the spread of multiple layers, polyethylene laminate has been defined in the production of fruit juice packaging wrappers, pharmaceutical packaging, toxic supplements, milk powder, baby food and other items that require a polyethylene layer. Therefore, the specialized market of polyethylene film and its specialized needs is expanding.

In a country that has strong capacities in the production of various grades of polyethylene, the specialized production of this product should also be considered.