Preforms are produced from polyethylene terephthalate (PET), so they are known as Bottle Seal Liners. They are created by RETAL employing a highly-accurate injection molding process on gear from the leading world suppliers.

Preform weight depends on the final container’s preferred volume. Preforms can be solitary-coating or multilayer. Buffer preforms provide extra benefits and improved beverage shelf life, due to a special layer baked into several layers of polyethylene terephthalate.

RETAL offers a full variety of polyethylene terephthalate (PET) preforms for packaging, transporting and keeping drinking water, mineral water, carbonated drinks, fruit juices, nectars, infant meals, dairy products, dark beer, reduced-alcohol and alcohol based drinks as much as 40% abv, edible oil, mayonnaise, ketchup, sauces, household and cosmetics items

As well as standard preforms, RETAL companies custom preforms customized to person consumer specifications.

To find the very best packaging choice to suit your needs, speak to a sales representative or tech support professional. They can help you create a appropriate selection based on your equipment, the complexity of the form of the PET bottle, along with your unique specifications.

PET preforms, better known as “preforms”, are an intermediate item whereby the output of containers is achieved. The nickname of PET is a result of the fabric that they may be made, polyethylene terephthalate.


The product is made by way of a accuracy blow molding and shot process. The preform PET is administered into a mold to turn into a preform that, via an additional coming stage, will require the preferred form (mainly storage containers for drinks, soaps or any liquid).

One of the advantages of Bottle Seal Liners is their excellent flexibility with regards to design, since very different products can be developed via this same process. Based on the client’s requirements, we can differ the weight, volume, color, shape or neck in the bottle.

PET preforms can be utilized for that packaging of mineral water, juices, liquors, fizzy drinks, carbonated drinks, oils ideal for consumption, medications, pickles, jams, customer items, and so on.

Two different types of techniques can be used, which are:

Solitary Phase or Integrated System

The injection and blowing procedures are incorporated inside the same machine. The preform is shot molded and even though it is nevertheless hot it really is blown to form the part. This process is acceptable for small, and medium creation outlines.

Two Stage System

In this technique, two individual machines are employed, a machine for the injection of the preforms and another for blowing to reheat the preforms making the last item. This method is most effective for medium and enormous-scale creation.


* Drying from the Pet (granules)

* Plasticization of PET

* Shot molding from the preform

* Home heating the preform

* Blow molding of the preform

* Chilling and expulsion of the last piece

Regular proformas

Regardless of the excellent malleability with this item, there are several specifications in order to streamline this process. A number of the standards we provide from PCO, POPP, Bericap, BPF, OIL

In order with an efficient creation of preforms it is essential to rely on a partner who invests in study and development to offer revolutionary and flexible solutions both for machines and for moulds.

Inside a manufacturing process the technologies that can change lives, as an example, are the types optimising the injection unit, the press unit and the moulds.

The injection device should have characteristics such as a servo drive, continuous rotation in the screw at low velocity, the opportunity to consume to 4% colouring agent without having a decrease in flow as well as create various extrusion sizes, the shot system with minimal lack of plasticization capability.

For top performance, the press device will need to have PET Preform, guarantee outstanding cleaning, long operating lifestyle and minimum maintenance expenses.

The moulds has to be developed so that the preforms are of high quality and creation is fast, they have to have reduced maintenance expenses, a wear-evidence coating, excellent neck chilling systems.

Also, additional benefits are given by the cabability to select moulds kswpvl as much as 144 tooth decay that can be adapted to machines made by the primary producers in the marketplace.

Machines with shot-pressure system should have components which make the complete procedure better and a lot more affordable, for instance: optimized plasticization screw with continual rotation to minimize usage and AA amounts, capacity to use up to completely rPET without having making modifications, revolving shot-compression tire with decreased cavity tonnage that enables much less wear in the form.

Machines with technological qualities such as the types outlined create a substantial decrease in TCO, make owner tasks more secure and easier, and also have a made the decision impact on the quality of the preform and also the working lifetime of the moulds.

PP Peel – What To Consider..

We are using cookies on our website

Please confirm, if you accept our tracking cookies. You can also decline the tracking, so you can continue to visit our website without any data sent to third party services.