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Plastic Bottles

A reliable source for Plastic Bottles information and a resource for accessing leading Plastic Bottles and suppliers.

A plastic bottle is a plastic container with a neck that is narrower than the body, one that can hold a specific amount of fluid. and can then be closed with a screw cap, a snap cap, or another sort of closure. Read More…

Plastic Bottles Plastic bottles are plastic containers that are typically characterized by thin construction and small size compared to other plastic products. While many industrial plastic products boast strength, durability of construction and general sturdiness, many varieties of plastic bottles are designed to be as light-weight and low-cost as possible, especially in the context of beverage packaging.
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Leading Manufacturers

Winfield, KS  |  620-221-9464

No matter what your blow molding request, Western Industries is ready to assist you. We believe in thinking outside the mold, and using unique methods to come up with solutions for our customers. We have access to state-of-the-art technology and over 100 years of combined experience serving a variety of industries. When you choose Western Industries, you have the Western Advantage. Call today for more information!

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Western Industries Plastic Products LLC $$$

Riverside, CA  |  951-360-6055

At Blow Molded Products, we have experience doing custom blow molding for a multitude of industries, including furniture, sporting goods, health and safety, electronics, and more.

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Blow Molded Products $$$

Sturgis, MI  |  269-651-9488

With blow molding presses from 1 to 80 lbs., Iceberg Molding has the ability & resources for every step of your blow molding requirements - from a competitive part quote to part & product development support start to finish.

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Iceberg Molding $$$

Riverside, CA  |  951-354-0258

Founded in 1984, Hi-Rel Plastics & Molding, Inc. is a turn-key manufacturer who offers custom blow molding and custom plastic injection molding for a variety of industries. With more than 35 years of experience, our quality products are unparalleled. We process an almost infinite variety of thermoplastic resins, our prices are competitive, our delivery is on time, and we offer superior customer service. Our company is ISO 9001:2015, AS 9100 Rev D, 13485:2016 Certified.

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Hi-Rel Plastics & Molding $$$

Mayodan, NC  |  336-949-4107

Since 2009, Blow Molded Solutions has been a leader in the blow molding plastic industry. Our expert team works alongside our customers to ensure that our products meet their needs. We are committed to manufacturing high-quality products that meet and exceed the customer's expectations.

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Blow Molded Solutions $$$

Coloma, MI  |  269-849-3200

Since 1952, SPI Blow Molding has provided custom blow molding for a diverse range of industries, such as agricultural, plumbing, electronics, and more. Our team can meet your needs with a variety of plastics, such as HDPE, ABS, polycarbonate, and TPE. Secondary operations and assembly services are also available. SPI is a leader in our industry due to our customer-oriented ability to deliver successful production solutions and unmatched product quality.

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SPI Blow Molding LLC $$$
placeholder image Western Industries Plastic Products LLC Blow Molded Products Iceberg Molding Hi-Rel Plastics & Molding Blow Molded Solutions SPI Blow Molding LLC

What are Plastic Bottles?

Plastic bottles are one of the most popular beverage containers in the modern world. They are made using a process called blow molding. This process enables producers of plastic bottles to create bottles in a wide range of shapes and sizes using a variety of plastic materials.

However, the majority of plastic bottles are often distinguished by their light weight, low price, small diameters, and thin wall construction.

Plastic Bottles

How Plastic Bottles are Made

The different processes in making plastic bottles include:

Extrusion Blow Molding Process

Manufacturers of plastic bottles use an extrusion blow molding technique to generate almost all of their goods in the same way. Manufacturers fill a hopper with stock, which is a collection of tiny, unprocessed thermoplastic pellets or fibers, to begin this process.

They steer the stock away from the hopper and into a conveyance tube with a big screw inside of it. This substantial screw presses the stock while also moving it toward a mold chamber as it rotates. The stock liquefies under the additional impact of heating components in the channel. The plastic is liquefied and then pressed into a mold cavity where it assumes its shape.

The partially-formed plastic product is still inside the mold chamber when manufacturers apply compressed air. The plastic product is made hollow by the compressed air, which is then used to hold it against the mold's body until it resumes its original shape.

The newly-created plastic bottle is then given time to cool and solidify before being taken out of the mold. From here, the product can either be dispatched after being reviewed for flaws or moved on to further processing.

Injection Blow Molding Process

Manufacturers of plastic bottles occasionally produce plastic bottles using injection blow molding (IBM) or injection stretch blow molding.

A molten polymer is delivered into a hot runner manifold during the first stage, where it is then injected via nozzles into a heated cavity and onto a core pin. While the core pin makes sure that the cavity does not solidify and maintains its hollow state, the polymer surrounding the core pin adapts the cavity's shape to create an outside layer. The mold is clamped around a core rod, inflated within a preform, and then chilled at a blow molding station during the second stage of the process.

Injection Blow Molding

The finished product is placed in the ejection position and stripped off the core rod during the third stage, which occurs after the plastic form has solidified. It's vital to remember that of all the plastic blow molding methods available, this one is the least frequently used for producing plastic bottles. Instead, it is only applied to the production of tiny bottles and jars.

Additionally, this approach does not allow for the addition of handles or a stronger bottle barrier. The creation of rectangular, cylindrical, and oval bottles is then accomplished via injection stretch blow molding.

There are two ways to perform injection stretch blow molding: one stage or two stages. The preform and the bottle are both blown in the same machine in the first approach. The second approach involves first creating the preforms using the injection molding process, after which they are reheated and stretched into the desired shape. Pressurized air and core rods are used in the final step to assist the preforms expand appropriately.

Injection Stretch Molding

Materials Used to Make Plastic Bottles

Plastic bottle makers use a variety of plastics, including polyethylene, polyethylene terephthalate (PET), and polypropylene, to create their goods. They might employ recently- produced raw materials or they might use plastics derived from processed and recycled goods.

Since many plastics are harmful to the environment if not recycled, using recycled materials aids firms in lowering their carbon footprint. In keeping with this, numerous plastic bottle producers are also capable of processing discarded plastic bottles for use as recycled material in a mind-boggling array of uses, particularly in the auto sector.

Plastic Bottle Informational Video

 

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