18 Teeth 4.5g Plastic Preform Bottle Tubes Embryo PCR Blowing Blank

18 Teeth 4.5g Bottle Embryo Tube Blank Cosmetic PCR Blowing Plastic Bottle PET Bottle Blank

Defining a PET Preform

The preform is an article made of Polyethylene Terephthalate, commonly known as PET.

It is normally manufactured using a mould on an injection system, which is subsequently

blown into a container for edible or non-edible liquids (water, soft drinks, milk, alcohol, oils,

detergents, personal care) on a blowmoulding system.

In practice, what comes out of the machine is a test-tube shaped object with a threaded,

finished neck that is then transformed into a customised container used to distinguish a

specific brand.

Injection process
After all, how plastic is made? As we said earlier, there are three ways to do it. Among them,

there is injection, which consists of casting the polymer to mold it according to the desired

purpose. Toys, home appliances, and medical equipment are made this way.

This process begins with the addition of plastic raw in the feed region of the injection molding

machine. The resin is sent to a heated area, passing through a screw that transforms the

polymeric granules into a plasticized mass.

Next, this mass is compelled by the screw to a mold, which was previously changed to have

dimensions and details of the piece that will be produced.

After the processing conclusion, operators responsible for manufacturing perform the inspection,

finishing (if necessary), packaging and transport. After the closing of these steps, the final

products are sent to the client.

Blowing process
Finally, blowing is another way of how is plastic created through rigid packaging, used in

different applications. The product manufactured by this processing is used in the production

of packaging for the cosmetic, agricultural, provision, automotive, and pharmaceutical industries.

The transformation by blowing starts with the transport of the raw material for plastic industry to

the machine feed. After that, the material is taken to a heated cylinder, which counts on a screw

conveyor, capable of modifying the chemical structure of the piece to a plasticized mass.

This mass is transformed into a product with a hollow and cylindrical mold, called “parison”. After

leaving the matrix, it is placed in a shape configured for the piece that will be produced. In this

step, the material receives compressed air and blowing pressure.

Whatever the chosen process for the manufacture of the additive compounds, the desired result

is obtained when a good-quality raw material is used. Therefore, it is very important to verify

which solutions are used by the company chosen as a supplier of your business

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