Packaging with a shrink wrap machine factory has become increasingly popular. Wrapping objects with shrink wrap film costs just a few cents. The plastic protects from handling and humidity.
When packing goods like cleaning supplies and water, SHUNTIAN brand shrink wrap machine factory makes it easy. Gather the pieces together and carefully wrap them.
What Are The Different Kinds Of Shrink Film?
The Basics of Blurred Film
When heated, a specific polymer substance known as heat shrink film collapses. Heat causes a complex combination of plastic beads and additives to shrink, resulting in shrinkable shrink film. Some examples are UV inhibitors, flame retardants, and pigments.
As soon as the mixture has been melted and extruded to the proper thickness (gauge) and width, it is allowed to cool and then wrapped in a roll. Thickness and performance in the intended application are two factors that affect a film’s quality.
The contents and thickness of shrink films may be varied to generate a wide variety of products. Food-grade films may be used for fruit wrapping, and thick, weather-resistant films can be purchased for storing boats and gear. It’s all about the chemistry of the mix.
A Guide To Shrink Film Types
Plastic films referred to as “shrink wrap” include a wide range of products. Slump-wrapped pallets of products may be tightly packed with the help of the elastic band that encircles them. When heated, shrink film, also known as heat shrink film, contracts.
A superb all-purpose shrink film, vinyl chloride shrink film is made from vinyl chloride. PVC, a popular plastic, is used to construct drain pipes. PVC has the potential to leach toxins into food. As a result, it is not safe to eat. It is sturdy and suitable for non-edible packaging items, such as games, software, CDs, etc.
PVC shrink film has certain material-related constraints. Cold temperatures cause PVC plasticizers to solidify, whereas heat causes them to soften. Sealing and strength may be compromised in difficult situations. Polyvinyl chloride (PVC) polymers release hydrogen chloride into the atmosphere when heated for shrinking. Proper ventilation is needed while working with PVC.
Polyolefin (POF) shrink wrap has overtaken PVC as the favored packaging material. Seal strength and storage stability are all advantages of polyolefin films over PVC. Because POF is free of chlorine and plasticizers, it poses no threat of hydrogen chloride outgassing or temperature fluctuations during storage.
How is PVC better than polyolefin? POF shrink film is more expensive than PVC. Some computers, on the other hand, do not support POF. The cost was maybe high in high-volume production.
Adding radiation to conventional POF film causes the chemical components to bind differently, creating a stronger and more secure seal. For direct food contact, the FDA has approved the use of cross-linked shrink film. Because they are so transparent, films are ideal for showing packaged items. High-speed sealing necessitates using these seals because of the reduced residue they leave on the sealers.
Higher temperatures are required to seal and shrink less cross-linked polyolefin shrink film. Be wary of using too much heat since it might damage the items you’re wrapping. Moreover, when the temperature rises, so do utility costs.
Polyethylene Shrink Film: To package heavy things, use polyethylene shrink film. Shrink films made of polyethylene survive longer than PVC or POF. In addition to water cases and fuel bundles, polyethylene is employed to cover these items.
Shrink film made of polyethylene requires an expensive shrink bundling machine. It takes longer for the film to shrink when thicker, affecting the packed goods. In addition, the shrinkage rate of polyethylene is just around 15%. Using polyethylene, heavy objects may be neatly bunched.
Wrapping Up
Wrapping things with SHUNTIAN brand shrink film is a terrific way to keep them fresh and ready to be sold. Numerous applications benefit greatly from its ability to safely enclose merchandise. Shrink wrap machine factory may be used to package cards or booklets for distribution by printing companies. Two hundred brochures wrapped in plastic are considerably easier to manage than 200 banded rubber brochures. The SHUNTIAN brand’s shrink-wrap product also keeps moisture and handling at bay. Wrapping old data with shrink wrap may help protect it. The heat-shrink film may assist any business.
