If you are thinking of making a decision on which film you are about to choose for industrial bags, films, and starting points, two types of films will pop into your head- cast films and blown films in Melbourne. Well, you need to keep in mind that both of them are different.
There are major differences in manufacturing processes for each. Besides, they arrive with their own sets of benefits and drawbacks. Manufacturers also have specific specializations in cast films or blown films. So, let's conduct a comparative analysis of these two films. It will help you make the right decision.
Blown films vs the cast films:
Definition of blown films:
When it comes to these films, the process of their manufacture involves the heating of a plastic resin and stretching it to a desired thickness. It happens due to the air inflation system, which results in a very large bubble of films. It allows them more time to cool in the surrounding air.
Definition of cast films:
Here also, the manufacturing process involves the heating of a plastic resin. Well, the purpose of heating is to stretch the plastic and achieve the desired gauge. Once the manufacturers are done with the heating process they will roll the films over the chilling rollers to cool the film.
ADVANTAGES AND DISADVANTAGES OF THESE TWO FILMS:
Now that you are aware of the definition of both of these films, it is time to take a look at their advantages as well as disadvantages. It will help you fathom which one you need for your application. So, here is the list of advantages and disadvantages these films have to offer.
Cast film:
Advantages of cast film:
You will enjoy high transparency due to its haze and gloss.
There will be a uniform gauge once you use this film.
There will be no limit to the thickness.
This film will provide you with a high barrier of moisture, gases, and aromas.
The unwinding process of this machine is quieter compared to others.
Disadvantages of cast film:
It has natural double-sided clings.
High gloss will facilitate reflections and glares.
There will be more scrap.
The production runs are pretty long.
Blown films:
Advantages of blown films:
These films will provide you with maximum toughness.
It is resistant to punctures.
The film arrives with high cling.
There will be less scrap during the manufacturing process.
The production runs are quite short.
Disadvantages of blown films:
The unwinding process is quite noisy.
It takes a lot of time to cool down.
You will have less control over thickness.
So, these are all the things that you need to know about both of these films. Amongst them, choosing the blown films will be your best decision as they are more efficient. So, if you are looking for a place from where you can get the best-blown films, you can always get in touch with Westside Packaging Systems Australia. They will also provide you with the composite strap on Melbourne.
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