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

Preform weight depends on the end container’s desired volume. Preforms can be single-coating or multilayer. Barrier preforms provide extra advantages and improved drink shelf life, due to an exclusive layer embedded in several layers of polyethylene terephthalate.

RETAL delivers a complete assortment of polyethylene terephthalate (PET) preforms for packaging, transporting and keeping consuming water, mineral water, carbonated drinks, juices, nectars, baby meals, milk products, dark beer, low-alcoholic beverages and alcohol based drinks as much as 40Percent abv, edible oil, mayonnaise, ketchup, sauces, home and makeup products items

Along with regular preforms, RETAL companies custom preforms tailored to person consumer requirements.

To find the very best packaging option to suit your needs, contact a salesman or tech support professional. They will help you create a appropriate selection according to your gear, the intricacy from the form of the PET bottle, along with your unique requirements.

PET preforms, also known as “preforms”, are an intermediate item through which the creation of bottles is achieved. The nickname of PET is due to the fabric from where they are created, polyethylene terephthalate.


This product is created by way of a precision blow molding and shot process. The preform PET is administered into a mold to turn into a preform that, with an extra coming step, will require the required form (primarily containers for drinks, soaps or any fluid).

One of the main advantages of Closure Aluminium Seal Liners is their excellent versatility when it comes to design, since completely different products can be developed through this same process. Based on the client’s needs, we can differ the weight, volume, colour, form or neck of the bottle.

PET preforms can be utilized for the packaging of mineral water, juices, liquors, sodas, carbonated drinks, oils ideal for usage, medications, pickles, jams, consumer products, etc.

Two different types of systems can be used, which can be:

Solitary Phase or Integrated System

The shot and coming procedures are integrated in the same machine. The preform is shot shaped and though it may be still hot it is actually blown to make the component. This technique is acceptable for small, and medium creation lines.

Two Phase System

Within this method, two separate machines are employed, a machine for that injection of the preforms and another for coming to reheat the preforms to make the last piece. This process is best suited for method and huge-scale production.


* Drying in the Pet (granules)

* Plasticization of PET

* Injection molding in the preform

* Home heating the preform

* Blow molding of the preform

* Chilling and expulsion of the last item

Regular proformas

Despite the excellent malleability of the product, there are several standards in order to simplify this process. A few of the specifications we provide from PCO, POPP, Bericap, BPF, OIL

In order to have an effective manufacture of preforms it is essential to rely on someone who invests in study and development to provide innovative and flexible solutions both for machinery as well as for moulds.

Inside a manufacturing process the technologies that can make a difference, as an example, are the types optimising the shot unit, the press unit and also the moulds.

The injection device should have qualities such as a servo drive, continuous rotation in the screw at low velocity, the cabability to consume to 4% colouring agent without a drop in flow and also to create various extrusion dimensions, the injection system with minimum lack of plasticization capacity.

For high overall performance, the press unit should have Bottle Preform, guarantee outstanding cleaning, long working lifestyle and minimum maintenance costs.

The moulds must be designed in order that the preforms are of high quality and production is fast, they need to have reduced maintenance expenses, a wear-proof coating, outstanding neck chilling techniques.

Also, additional advantages are provided by the opportunity to select moulds kswpvl up to 144 tooth decay that can be adapted to machines created by the primary producers available on the market.

Machines with shot-pressure system should have elements that will make the entire process much better and a lot more economical, for example: optimized plasticization attach with continuous rotation to lessen usage and AA amounts, capability to use up to 100% rPET without creating modifications, rotating shot-compression tire with reduced cavity tonnage that allows much less put on in the mould.

Machines with technological characteristics such as the types listed result in a substantial decline in TCO, make operator tasks safer and easier, and also a made the decision effect on the quality of the preform and also the working life of the moulds.

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