Choosing Between Shrink and Stretch Films

Choosing Between Shrink and Stretch Films

Shrink film wraps and stretch film wraps are among the most common packaging consumables today. Stretch films are more cost-effective and you can apply them without using adhesive, glue or heat.

The type of packaging equipment you have, the load and the special requirements are among the factors you should keep in mind when choosing your film. Read on to find out more.

The Type of Load

There are three types of loads. Type A loads have a uniform shape and are easy to wrap, as they have regular edges. Type B loads have an irregular stacking pattern and uneven edges. Type C loads vary in shape and size with multiple sharp edges. Type A loads can be wrapped using cast film whilst type B and C loads require a blown film because they are typically stronger and more resistant to puncture.

Your Packaging Equipment

If you have pre-stretch machines running at a moderate level, mid-range stretch films are ideal for you. Spiral wrap films are used in loads that have varying configurations. Fully automated high-speed equipment using pre-stretch machines require stretch films of a premium rating. Economy films are ideal for a low stretch on standard equipment.

Special Requirements

Many clients have specific packaging requirements for their products. Heavily tinted films are effective at concealing products. Ultraviolet inhibitor stretch films are ideal for packages that are stored outdoors for extended periods. One-sided cling films are used for pallets that have a likelihood of shifting in transit.

The type, gauge and layers of the stretch film likewise differ according to the weight and the shipping distance. There are particular films for specific applications. Choosing the right film for your product reduces overall packaging costs and the risks of overwrapping and wastage.