A shrink film can be made to shrink in one direction (unidirectional or mono-directional) or in both directions (bidirectional).Shrink film designs will become half their size and strong plastic pieces great for adding dimension to scrapbook pages and handmade cards. Easy to cut with decorative scissors, die cut machines and punches.Films are stretched when they are warm to orient the molecules from their initial random pattern. Cooling the film sets the film's characteristics until it is reheated.this causes it to shrink back toward its initial dimensions.
Types Of Shrink Film
- LDPE shrink film
LDPE or Low-Density PolyEthylene shrink film is among the strongest shrink film in today’s world. Owing to its high-strength and tear-resistance, it is being widely used in a number of industries across the world. Though the film is a little hazy as compared to PVC shrink film, and it also shrinks at a little higher temperature as compared to PVC, but being environment-friendly and easily available, it is the first choice of packers.
- PVC shrink film
PVC or Poly Vinyl Chloride shrink films is one of the most popular variety of shrink film discovered in recent times. This type of shrink film is very high on clarity and gloss and has a very good shrinkability. The inherent characterstic of being printable adds to its acceptability. The film shrinks at a low temperature as compared to other shrink films.
- Polyolefin Shrink Film
Polyolefin (POF) shrink film is a combination of PVC and LDPE shrink film as far as the characteristics go. It possesses the clarity and gloss of PVC and strength and tear-resistance of LDPE shrink film. It is food grade and can be safely applied for packing of food items.Another property of POF shrink film is that it shrinks at very low temperatures and has excellent shrinkage percentage in both the directions.
Advantages Of Shrink Bags
- Polyolefin Shrink Bags production saves cost of 4 L sealer and hot tunnel.
- The production method is 4 times faster than manual method even faster than automatic machine.
- The production method for Polyolefin Shrink Bags saves wastage.
- Labour cost is saved.
- Cost of floor space is saved.
- Electricity cost is saved in the process of production of shrink bags.
Shrink Films For A Variety Of Applications
- Tamper-evident bands
- Full- or partial-body roll sleeves
- Wine capsules and disk plates
- Full- or partial-body shrink sleeves
- Pressure-sensitive shrink labels