What is the difference between stretch film and shrink film, and how can we choose the right film for packaging our products? Stretch film and shrink film are among the widely used and useful films in product packaging. Each of the products’ packaging films and nylons have their own characteristics and uses and are different from each other. Many people always hesitate in choosing stretch film and shrink film due to not having enough information about these two films and other films and their differences.
Each of these films has its own special fans and buyers according to its nature and characteristics, but in general, stretch film and shrink film are among the best and highest quality films available in the market for use in packaging. Are products.
In this article, we intend to give you information about the difference between stretch film and shrink film, so that you can comment on product packaging film with more complete information and compare them more easily.
Before discussing the main and important differences between stretch film and shrink film, we first mention the general features of these two widely used and popular films and their characteristics. Stretch film is a type of plastic film with very high elasticity, which is made of polymer or PVC materials and is often used to package products for long-distance transportation.
Due to its special nature, this film prevents the penetration of environmental factors such as dust and moisture into the packaging of products, and also has a very high impact resistance and prevents the goods from being damaged. Due to their very high resistance to moisture and completely hygienic construction, these films are suitable for the packaging of various food products.
shrink films are one of the most widely used films in product packaging. These films are made of plastic with polymer raw materials or polyolefin, PVC, polyvinyl chloride or polyethylene. By heating the shrink film, we can easily use it in the packaging of various products. This type of film has a very high and favorable resistance, and due to its flexibility, it has a high resistance against things such as tearing.
The important thing to say about shrink film is that a manual, automatic or semi-automatic thermal device must be used to package products using it.
After you are familiar with the general nature and properties of these two famous films, it is better to complete your information regarding the difference between stretch film and shrink film so that you can more easily and confidently choose one of these two films according to your application. Do By examining the specifications and features of stretch film and shrink, we can find out the most important difference between stretch film and shrink film, i.e. diameter and thickness. The thickness of the stretch film is more than that of the shrink film and it is very suitable for packages with high sensitivity and the possibility of damage.
To wrap products using shrink film, it must be heated so that it is completely attached to the product, but for wrapping products with stretch film, heat is not needed and different products can be wrapped easily; which is one of the positive points of the stretch film.
Shring packaging is much less likely to wrinkle than stretch film, because the shiring film takes the shape of the product completely through heat. But the stretch film may not completely take the shape of the product and as a result have wrinkles and lines. Shrink film is often used in the primary packaging of products, while stretch film is used for final packaging of products.
shrink film is very suitable and practical for industrial packaging and heavy appliances, especially household appliances, due to its greater malleability. Shrink film is used in the packaging of products such as paste cans, large and small bottles of water and plastic drinks.
The main reason for using shrink film is that it fully takes the shape of the product when heated and prevents the product from slipping and moving inside the packaging. On the other hand, stretch film is used for packaging products that have large dimensions and are ready for transportation.
One of the very small points in the difference between stretch film and shrink film is the possibility of branding and advertising designs. shrink film is often used in making promotional nylons is used. Many advertising companies use this film in the packaging of their special products.
Stretch film with low thickness is very suitable for packaging food products in order to increase the beauty of shop windows. Of course, high-thickness stretch film is also used in packing home appliances, furniture, cartons, etc.
Based on the mentioned materials, because the shrink film is sensitive to heat and changes its shape with heat radiation, we cannot use this film to package products that are exposed to sunlight and other such factors. But on the other hand, we can use stretch films for packing some products, including shop window products, due to their very high resistance to heat.
In many industries, including collecting a large number of cartons in special pallets and transporting them with a forklift, a film with high locking capability is needed. In such cases, shrink films are the best option for packaging products on pallets.
This film changes its shape by quickly absorbing heat and firmly adheres to the product. But we must pay attention to the fact that, unlike stretch film, the shrink film does not have a very high elasticity, but it can shrink to a great extent and put pressure on the product to some extent. In addition, shrink films are widely used in construction and architectural projects.
On the other hand, stretch film is used to store food products in cold storage. Stretch film has a high resistance to puncture compared to shrink film, and for this reason, it is used in the packaging of products that are placed in environments with little space.
Stretch films, unlike shrink films, are used in the packaging of products such as bread, sweets, fruits, meat, fish, cheese and fried foods. The reason for using stretch film in the packaging of the mentioned products is that they do not react to temperature changes.
The main and most important difference between stretch film and shrink film is in the raw materials used. The raw materials used in shrink films are organic and plant-based materials, and for this reason, they are very compatible with the environment.
If you pack a large number of goods and different items per day, it is better to use stretch films because these films are cheaper than shrink films and are cost-effective for factories and productions.
In this article, we reviewed stretch film and shrink film and the important and practical points about these two types of packaging film, and we explained the main differences between stretch film and shrink film to you dear ones so that you can more easily and quickly choose and buy your opinion according to your budget and user type.
Shrink film and stretch film each have their own special features and nature, but in general, stretch film is thicker and more suitable for packaging sensitive products.
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