Stretch film is popular in many industries due to its strong performance in low cost and high efficiency. The main role of the stretch film is to prevent leakage, convenient storage and handling so as to extend the product color life, greatly enhance the value of the product. In the use of the process of easy to use, and good flexibility, in the rapid development of the market economy today, any enterprise is inseparable from the stretch film, and stretch film is not only for the use of goods packaging. But also to meet the requirements of environmental protection, more and more enterprises have chosen it, then how many stretch film types? Let’s break it down a bit.

| There are a number of ways in which stretch films types can be classified:
- By weight
Stretch film can be divided into three categories: Mini, hand and machine; Mini version is generally 0.3 ~ 1kg, this size is suitable for packing smaller items, hand film is generally 1.5 ~ 4kg, which is more suitable for packing larger and medium-sized goods, the last machine with the film most of 10kg or more, this size of the stretch film most of the factory machinery used to pack large goods.
- By color
The color of the stretch film is varied, according to the common points, and can be divided into transparent, black, other colors. One of the most widely used transparent and black, black and other colors is not in the production process to increase the pigment, but added color masterbatch, real quality assurance of the stretch film is tasteless and non-toxic, we can rest assured to use.

| According to the material, the stretching film types can be divided into PE stretching film and PVC stretching film
The difference between them, the content is as follows:
1. PE stretch film is a very tough material, not easy to be crushed with the ordinary plastic shredder. Because PE tensile film is soft and tough, and not easy to cut, not to mention under high-speed tool temperature, will make LDPE melt adhesion on the blade. PE granulation can be directly into the extruder feeding mouth, relying on the screw shear force to drag PE film into the barrel heating melt extrusion granulation.
2. PVC stretch film, additional ingredients to enhance its heat resistance, toughness, ductility and so on. The top layer of the film paints, the main ingredient in the middle is polyvinyl chloride, and the bottom layer is back coating adhesive. It is a popular, popular and widely used synthetic material in the world today. PVC is the most suitable material for the production of three-dimensional surface film.
| According to the requirements of Sinyar stretch film customers, stretch film types are divided into the following categories
- Machine-used PE stretching film:
The machine-used stretching film is packed mechanically, mainly by moving the goods to drive the die roller. The tensile strength of the film is required to be high, the tensile rate of the film also has certain requirements. General tensile requirements of 300%, 15KG volume weight of the product, packaging machine will first stretch stretch stretch film to a certain proportion, and then the stretch film wrapped in the need to pack the goods. The goods are packed by elastic compression of the thin film. High-quality requirements, with high tensile strength, elongation and puncture resistance.
- Manual hand PE stretch film:
This is the main method of manual packaging, manual winding film generally requires low quality, the weight of each roll is generally about 4KG, 5KG, easy to operate.
- Stretch film jumbo roll:
Stretch film master coil is more and more popular in foreign markets. We use multi-layer squeeze casting drawing film production equipment to produce trolley drawing film. After purchase, rewinding and auto-cutting are carried out by a rewinding machine, and the finished product is packed and shipped to local customers.
- Mini stretch film:
The small winding film is made of small tube core winding film, because of its small volume, can be handled by a person alone, suitable for some small pieces of pipe packaging.
- Color stretch film:
Color stretch film is produced by adding color masterbatch to make a different color stretch film. Customers welcome the color has blue stretch film, green stretch film, black stretch film, red stretch film, yellow stretch film and so on. Can be customized to customer requirements.
- Breathable stretch film:
It is an enhanced breathable stretching membrane with fishing net-like breathing holes on the surface, which can speed up air circulation and solve many problems such as easy receipt of ripening gas, moisture, mold, or condensation so that the freshness of the food product. At the same time, the breath-wrapped reinforced fibers also prevent rupture of the tensile membrane and provide better load-carrying capacity.
The breathable stretch film not only has the characteristics of the traditional stretch film but also can solve the difficulties of air-tight and water vapor generation, so it is used to package fruits, flowers, meat, hot bottled drinks and so on for several days will not be strong enough to seal and rot or mildew.



- Airport baggage packing stretch film, grafting stretch film, thin body stretch film, etc.
| Stretch film types can be divided into several categories according to the type of packaging:

- Multi-layer co-extrusion stretch film
General barrier film with PA (nylon) as core material
Membrane structure: PA/TIE/PP/TIE/PA/TIE/PP/PP/PP
Moderate gas, oxygen barrier performance, excellent heat sealing performance, and good water vapor barrier performance. High Gloss, transparent, printable (flyable structure outer layer PA)
Typical applications: Vacuum-packed bag: Cooked meat products, fish, seafood. For packing bags, such as salad dressing, edible oil, moisture-proof packaging, such as shallow pallet packaging tray, cover film, etc.

- Medical device packaging easy to uncover the film
High barrier films with PA and EVOH as core materials
Easy-to-peel membrane structure: PA/EVOH/PA PA/TIE/PP/TIE/PA/EVOH/PA/TIE/PE/PE/PE
High oxygen barrier performance, excellent heat sealing performance, good water vapor barrier performance. High Gloss, transparent, printable (flyable structure outer layer PA)
Typical applications: Syringe Plastic Bottom Box. Plastic base box for medical instruments. Easy-to-peel film cover.

- Hard sheet forming, sheet material, series
High barrier sheet with PET and EVOH as core materials
Sheet structure: APT/TIE/EVOH/TIE/PE/PE/PE
High Gas and oxygen barrier performance, good molding performance, excellent heat sealing performance,
typical applications: Yogurt Cups, jell-o cups. Fish, seafood, and meat safety trays. For modified atmosphere packaging machinery such as leisure food packaging. To make a thermoforming film.

- Color printing compound cover film
General barrier film with PA (nylon) as core material
Sheet structure: PA/TIE/PP/TIE/PA/TIE/PE/PE/PE PA/TIE/PP/TIE/PA/TIE/PP/PP/PP
High gas, oxygen barrier performance, excellent heat sealing performance, good water vapor barrier
Typical applications: Boxed tofu, milk tea, enema, etc.
Cooked meat products, fish, seafood, shallow pallet packaging tray, covered film, etc.

- High and low-temperature vacuum bag
High barrier film with PA and EVOH as core materials
Membrane structure: PA/TIE/PP/TIE/PA/EVOH/PA/TIE/PE/PE/PE
High gas, oxygen barrier performance, excellent heat sealing performance, good water vapor barrier
Typical applications: Vacuum-packed bag
Meat cooked meat products, fish, seafood, used in box bags, such as salad dressing, edible oil packaging, moisture-proof packaging
- Continuously stretch aluminum foil
A tensile film with aluminum foil as core material
Membrane structure:
Aluminum foil: High gas, oxygen barrier performance, excellent heat sealing performance, good water vapor barrier.
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