![]() To increase the heat resistance, the bottom of the bottle is usually petal-shaped and concave in shape. In making bottles with this type of PET preforms, crystallization is done that improves hardness and heat resistance. ![]() PET preforms are divided into the following general types: This manufacture can prepare all kinds of PET preforms you need for use in the packaging of food, cosmetics, chemicals, edible oils, and all sorts of beverages. Rota Pack Company is one of the PET preform manufacturers which produces various types of PET preforms. Using colored preforms, all kinds of colored bottles and containers are produced. Preforms are also available in different colors. Weight, preform body diameter, wall thickness, and overall diameter. ![]() The Preform 28 is used to store carbonated substances such as soft drinks.Īnother noteworthy point here is that each of these types of preforms is also divided into subgroups, and this grouping is based on other features of the Preform. In this group of preforms, the opening also has multiple sizes For example, the preform 20 is used as a standard preform for mineral water. Opening preforms:This group of preforms have smaller mouths and are usually used to store liquids such as mineral water, soft drinks, milk, beer, herbal essences, liquid oils, various types of liquid toxins, etc. Jar preforms: This group of preforms have larger openings and are usually used to produce a variety of containers for spices, pickles, honey, etc. PET preforms can be classified as follows: In general, PET preforms can be grouped according to their opening size. PET material is usually used to make preforms, and they are called PET preforms. Also, the flavor and aroma of the substance which is inside them don’t be lost.Īlso, PET preforms are recyclable and have high flexibility, and this feature makes it possible to use them to produce a variety of plastic doors that can be closed quickly. These containers can prevent oxygen from entering and keep the food unchanged for a more extended period. Multilayer containers and bottles can also be made using preforms. It will then be shaped as desired with high-pressure air. It is enough to heat the Preform’s body to about 100 degrees Celsius and put it in the mold. This small volume contributes a lot to environmental measures and reduces costs.Īnother advantage of Preform is that it can be used to produce bottles and containers with various designs. It is possible to carry 300,000 to 400,000 preforms with a 10-ton truck. Although the preform volume depends on the shape of the final bottle, there is a volume difference of about 1/5 to 1/10 between the Preform and the final product. ![]() One of the advantages of Preform is its small volume. In the second stage, the PET preform hollow tubes are placed in a unique mold and turned into different containers and bottles. The size of the mouth of the PET preform produced at this stage will not change after the production of the bottle, and its size is the same as the final size of the mouth of the bottle. This long tube is the same as the PET preform. In the first stage, the PET becomes a long tube similar to a laboratory tube. Therefore, the production of plastic bottles with PET raw material is done in two stages: Therefore it is not possible to produce containers and plastic bottles of PET preform by extrusion of melt and blowing polymer in the mold. These are the favorable properties of PET that have led to using this material as a suitable material in the plastics industry.Īnother unique feature of PET is that this material in the molten state, unlike other raw materials for plastic production, lacks sufficient strength. Some of these features are transparency, lightness, high strength, optimal creep properties, low flavor absorption, high chemical resistance, beautiful appearance, more accessible access, and low price. Some of these materials are polyvinyl chloride or PVC, polyethylene or PE, polyethylene terephthalate or PET, etc.Īmong these materials, PET has its characteristics. Many of the bottles are made from PET preform.ĭifferent types of materials are used to make plastic bottles. The Preform is an intermediate product that Preform can convert into a variety of bottles.
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