With tons of plastic bottles available in the market created by plastic bottle suppliers, the wide variety makes it more difficult to buy the best bottle according to your need. They come in different shapes and sizes, each with its distinctive features. Read on if you want to know about all the different things you need to consider to make the best choice.
What is a plastic bottle?
A plastic container is a jar made of high-density or low-density plastic. Plastic products made by plastic bottle manufacturer are regularly used to store water, soda, engine oil, cooking oil, medicine, detergents, milk, and ink.
The size of these units varies from extremely small containers to large carboys. The handles in this container can be moulded or shaped to make the grip easier. The biggest advantage of plastic jars over glass containers is that they protect against breakage during manufacturing and transportation.
How are they made?
Plastic containers are produced in several stages. Typically, plastic jugs used to hold potable water and various beverages are made using polyethylene terephthalate (PET) because the material is both solid and lightweight.
Polyethylene (PE) has a thicker thickness, so it is used to make plastic containers without bends, such as cleanser bottles and squeeze bottles. Polypropylene (PP) is used for pill bottles etc.
Polycarbonate (PC) can be good for refillable water bottles and reusable containers. To understand the manufacturing process, it is useful to initially understand the compositions of PET, PE, PP, and PC and how these materials affect the production of plastic bottles packaging.
Plastic bottle manufacturing Process
The main step of the regular 2-step reheat and blow machine (RBM) bottle manufacturing process is the injection shape. Plastic pellets are plasticized in the barrel of an injection machine where the plastic is softened by heat. The plastic is then poured into multiple cavity moulds, where it assumes the shape of long, thin tubes.
When the bottle (or, more frequently in production, the bottle) has cooled and reached a certain size, it is removed from the mould. Then the plastic bottles are ready to be transported or filled.
Types of plastic materials used.
Before you go ahead and make a choice, we suggest that you consider the materials used to make the plastic bottle. Below are some common ingredients that manufacturers use for this purpose.
It can be opaque or transparent based on the composition of the material. Similarly, like most plastics, PET is made from petroleum hydrocarbons. To produce plastic jars, PET is first polymerized to form long molecular chains.
When the plastic itself is made, the process of making the bottle can begin. To make sure the PET is suitable for use, various tests are performed after production to ensure the container is waterproof to carbon dioxide.
In addition, various variables such as transparency, gloss, shatter resistance, thickness, and pressure resistance are also monitored.
Low and high-density polyethylene
In other thermoplastics, polyethylene is used to assemble blow-molded milk and water containers, cleanser bottles, ketchup bottles, etc. Both LDPE and HDPE can be thermoformed, blow-formatted, infusion-shaped, and so on. HDPE is used for certain types of plastic jars, although it has a high hardness.
- Polypropylene
Polypropylene is a generally opaque, low-density polymer with excellent thermoforming. As for the bottle competes very well against polyethylene and can be easily seen for transparent application. Polypropylene does not match the optical clarity of the polymer, for example, polycarbonate. However, it works great.
- Polycarbonate
It is an expensive material compared to other jug-making polymers. Therefore, the use of this material is limited to very good quality usable jugs, such as those found in nursing bottles or water coolers, or laboratory settings.
The material has great optical properties and quality, which makes it suitable for bottles that show their substance with the transparency of glass, but must have the ability to withstand common misalignment. Contact us now!
