In today's fast-paced world of logistics and supply chain, it is critical that products are transported safely and efficiently. And behind this, there is an unknown "invisible guardian" - the stretch film. This seemingly simple plastic film, with its excellent properties and wide range of applications, has become an indispensable part of modern packaging.
1.Stretch film: not just "cling film"
Stretch film, as its name suggests, is a plastic film with high tensile properties. It is usually made of linear low density polyethylene (LLDPE) and various additives are added to enhance its properties. Unlike common protective films, stretch films have higher strength, toughness, and resistance to abrasion, and can withstand various challenges during transportation.
2.The "Legendary Weapons of China"
The range of applications of tensile film is very broad and covers almost all scenarios where a product needs to be fixed and protected:
tray packaging: This is the most common application of stretch film. After stacking the goods on the pallet, wrapping them with a stretch film can prevent the goods from dispersing and collapsing, and play the role of dust and moisture prevention.
Packaging of cartons: For cartons that require additional protection, a stretch film can be used to wrap the entire package, enhancing the strength of the carton and preventing damage.
Bulk cargo packaging: For some large and irregularly shaped goods, such as furniture, mechanical equipment, etc., tensile film can be used to twist and fix it to facilitate transportation and storage.
Other applications: Stretch film can also be used in binding and fixing, surface protection, cover for dust protection and other scenarios.
3. The "secret" of selecting a stretch film
There are many kinds of stretching films on the market, and the following factors need to be considered in choosing the right stretching film:
Thickness: The larger the thickness, the greater the strength of the stretch film, but the higher the cost. The appropriate thickness needs to be chosen according to the weight of the cargo and the transport environment.
WEIGHT: WEIGHT depends on the size of the pallet or cargo. Choosing the right width can improve the packing efficiency.
Pre-stretch rate: The higher the pre-stretch rate, the higher the utilization rate of the stretch film, but the more difficult it is to operate for manual packaging.
Color: A transparent stretch film makes it easy to view the goods, while a black or other color stretch film can act as a shield against light and UV rays.
4. "Tips" for using stretch film
* When using the tensile film, a proper tension should be maintained. Too loose cannot serve as a fixed effect, and too tight may damage the goods.
* When manual packaging, a "spiral" or "floral" entanglement method can be used to ensure that all sides of the goods are uniformly wrapped.
* The use of a stretch film packaging machine can greatly improve the packaging efficiency and ensure the consistency of the packaging quality.
V. The future of stretch film: more environmentally friendly and smart
With the enhancement of environmental awareness, degradable and recyclable stretch film will become a future development trend. In addition, smart stretch membranes will also emerge, such as stretch membranes that can monitor the status of cargo in real time, providing more comprehensive safeguards for logistics.
All in all, stretch film plays a crucial role in modern logistics as an efficient and economical packaging material. It is believed that with the continuous advancement of technology, the stretch film will become more powerful and intelligent, bringing more convenience to our production and life.
Post time: Mar-14-2025
