Trustworthy China pet preform


Jilian Mold 5-gallon Pet Preform To Make You Satisfied

The production of Pet Bottle Preform is carried out in stages. Typically, plastic bottles for drinking water and other beverages are made of polyethylene terephthalate (PET) because the material is both strong and light. In order to understand the manufacturing process, it is helpful to first check the composition of the PET and its effect on the plastic bottle.

PET is a thermoplastic polymer that can be either opaque or transparent, depending on the specific material composition. Like most plastics, PET is produced from petroleum hydrocarbons by the reaction between ethylene glycol and terephthalic acid. To produce plastic bottles, PET is first polymerized to produce long molecular chains.

Polymerization itself can be a complex process and leads to many inconsistencies between one batch of manufactured PET and another batch of manufactured PET. Usually, two impurities are produced during the polymerization: diethylene glycol and acetaldehyde. Although the yield of diethylene glycol is generally not high enough to affect PET, acetaldehyde can be produced not only during the polymerization process, but also during the bottle manufacturing process. The large amount of acetaldehyde used in the manufacture of bottles in PET imparts a strange taste to the interior of the beverage.

Once the plastic itself is manufactured, the bottle manufacturing process can begin. To ensure that the PET is suitable for use, extensive testing was performed after manufacture to check if the bottle was not penetrated by carbon dioxide (this is important for bottles with soda). Other factors, such as transparency, gloss, chip resistance, thickness and pressure resistance, were also carefully monitored. Jilian Plastics insists on bringing a series of pet products, such as 5-Gallon Pet Preform, which are suitable and durable for the consumers in the market. Welcome to contact us to get the products that satisfy you. 

Jilian Mold Efforts To Design Pet Bottle Mould

Since these days we seem to talk a lot about ourselves, we want to turn our attention to what we do for our customers. After all, they are at the heart of our business. We are proud of what we have achieved for them, and we are very happy from our retention rate.

It takes effort to design a Pet Bottle Mould. If we are honest, it takes a lot of money to process the mold. Another of our customers has discovered a clear advantage in working with Jilian Plastics. The parts we have built for him for many years suddenly need to adapt to different bolt sizes in different markets.

Although many moldmakers will pay attention to this project and see the perfect opportunity for a new mold, and all the time and expense that comes with it – we have taken a different approach, creating interchangeable molds for existing molds. pin.

Multi-cavity mold
Not only are we able to inject the right substitute for the mold, but we also custom-made the mold with the closing device so that only the parts that are often needed can be mass-produced, while the less common parts can be produced in a shorter period of time. It turns out that the cost of the mold is still much more cost-effective than machining a single part, an advantage that is further magnified by the ability to deliver parts in a timely manner.

Why should you cooperate with Jilian Plastics?
We are proud of our many years of service customers, from start-ups to long-established companies. But this is not just a kind of pride. More importantly, over the years, we have used our knowledge to continuously develop and improve our processes and find new ways to reduce costs without taking shortcuts. Bring your next Pet Bottle Preform injection challenge to Jilian Plastics and see what we can innovate together.

Various Tools In The Production Of Pet Preform Mould

When referring to Pet Preform Mould and tools, it is thought of the parts produced by processes such as blow molding or injection molding.

These components can be used for many different purposes in different fields and industries, and the proper use of them for the first time is extremely important to the success of any process they will be used for.


The mold is a hollowed out block that is used to set the shape of the product being manufactured. It can be made of different materials, the most common of which are aluminum, steel, alloys and copper. It also has different components.

These components include pins, bases, tappets, ejector, guides, bushings, and alignment devices.

Because the mold shapes the final product, it is always important to use the right type. Manufacturers should thoroughly understand the final product to be produced. Otherwise, the entire chain - from the smallest part to the role they play - will be sacrificed.

Injection molding

Since you have a better understanding of the role of the mold in the production process, you can better understand what injection molding is.

Injection molding, as the name suggests, is to inject any kind of material into the mold. In this process, different materials can be used, from metal to polymer, from glass to elastomer.

Basically, the material is fed into a heated bucket where it is mixed and forced into the middle of the mold. From here, the material hardens as it cools, forming the final product.

Blow molding

Blow molding is used to produce hollow plastic parts. It can be done in three different ways: injection blow molding, injection stretch blow molding, and extrusion blow molding.

Basically, the process requires air to blow plastic material into the mold. From here, the plastic cools down to form the final product.

Tool work

Tools include finding and getting the different parts and machinery needed to produce a product. It covers many categories, the most common of which are fixtures, fixtures, gauges, molds, molds, cutting patterns and equipment.

The process of instrumentalization is not just about choosing what is out of the box or what others are using.

Pet Preform Manufacturers remember that the results of the process directly affect the quality of the final product and the cost of the entire process. Because of this, you need to be extra careful if you are responsible for this process. 

Pet Bottle Preform Are Durable

Manufacturers produce a wide variety of plastic bottles, including water bottles, soda bottles and food containers such as mustard or ketchup. Polyethylene terephthalate (PET) is a particularly favorite product for the production of any bottle that comes into contact with food or drinking water. Pet Bottle Preform made from this material are lightweight but durable. Although the manufacturer may slightly change the process according to the patented method, the basic method of producing the bottle is universal.

PET is a plastic resin derived from petroleum hydrocarbons. Producers make long-chain plastic molecules through a process called polymerization, which is then mixed with several compounds. They cut the resin into small pieces and sent it to the bottle manufacturer. The bottle factory mixes PET resin pellets with "recycled" plastic, which has become thin. Plastics lose some physical properties when heated repeatedly, so manufacturers must limit the amount of regrind they use, usually limiting this ingredient to 10% of the total mixture. Dyes are introduced into the mixture unless a clear bottle is produced.

The extruder melts the PET at a temperature of about 500 degrees Fahrenheit and remills the mixture. The screw in the extruder compresses the PET mixture and injects the nearly molten material into the mold. The mold produces a bottle preform, sometimes referred to as a parison. The preform looks like a thick-walled test tube and usually includes a spiral top that is unique to the bottle. The preform will cool as it is transported to a machine called a blow molding machine and may need to be returned to the temperature specified by the manufacturer for the operation. If necessary, the bottle manufacturer will raise the temperature of the preform in a small oven.

Jilian Plastic Mould is a professional manufacturer of prefabricated molds. With our many years of experience in the market, we believe that you will be satisfied. Choose us and let you get a satisfying 5-Gallon Pet Preform

Jilian Mold Production Of Reliable 5-gallon Pet Preform

The PET chemical name is polyethylene terephthalate, also known as polyester. Currently, this material is used most in the customer and is mainly used to produce Pet Bottle Preform.

PET has better rheological properties in the molten state, and the effect of pressure on viscosity is greater than temperature. Therefore, the fluidity of the melt is mainly changed by the pressure.

Since PET macromolecules contain lipid groups and have a certain hydrophilicity, the particles are sensitive to water at high temperatures. When the moisture content exceeds the limit, the molecular weight of PET decreases during processing and the product becomes colored and brittle. In this case, the material must be dried prior to processing at a drying temperature of 150 ° C for more than 4 hours, typically 170 ° C for 4-6 hours. The air injection method can be used to verify that the material is completely dry.

The proportion of recycled materials should generally not exceed 25%, and the recycled materials should be thoroughly dried.
Injection molding machine selection

Since PET has a short settling time and a high melting point after melting point, it is necessary to use an injection system with more temperature control portion and less self-friction heat in the plasticizing process, and the actual weight of the product (aqueous gate material) cannot be Less than 2 / 3 of the injection capacity of the injection molding machine.

Jilian Plastic Mould is a pet manufacturer with rich experience. With our professional and rich experience, we can bring you satisfactory products. We produce a wide range of products, from 5-Gallon Pet Preform to caps, handles, etc., choose Jilian mold, I believe you can always find the product you want.

Why Can Pet Bottle Preform Stand Out?

By 2019, the global PET packaging market is estimated to be worth $60 billion, up from $4.81 billion in 2014. Let's take a closer look at why Pet Bottle Preform packaging stands out in the market and the role of adhesives in it:

PET (polyethylene terephthalate) is a plastic resin used in the manufacture of beverages, foods and consumer products. It offers many benefits to manufacturers and consumers, including:

Lightweight player
Crush resistance
Ease of use

In addition, PET packaging provides recyclability. Up to 100% of PET packaging can be recycled and used to make another PET package, and can even be converted into fiber for use in fabrics, carpets and clothing.

Polyester packaging

Unlike other packaging materials, PET packaging also provides inherent barrier properties. Therefore, the use of PET packaging can provide better oxygen transmission protection. This feature extends the shelf life of the product and extends freshness.

Use of adhesives in PET packaging

Adhesives play an important role in the finished PET bottle. Once the bottle itself is manufactured, the label will be applied to the bottle at a very fast rate. These adhesives must be able to adhere to the plastic and withstand the application requirements.

Jilian mold is an expert in the production of pet prefabricated parts. Our 5-Gallon Pet Preform are light in weight, good in quality and suitable in price. We are a supplier worthy of choice. Welcome to contact us. 

5-gallon Pet Preform Blow Molding Guide

The plastic world is very complicated. There are too many different processes that can be used to make plastic packaging, and one of the most popular methods of mass producing Pet Bottle Preform is by blow molding. Currently, there are three different forms of blow molding: extrusion blow molding, injection blow molding, and stretch blow molding. There are multiple reasons why any company chooses these two methods. confused? Take a look at our different types of blow molding beginner's guides below to help you learn more.

What is blow molding?
Simply put, blow molding is a method of mass production of plastic containers by specialized blow molding machines. The blow molding process begins by simply melting the plastic and making it into a parison, which is a hollow tube. The parison is then injected into the machine where the process is different.

Extrusion blow molding
For this process, the plastic is melted and then the blank is extruded. The parison is then closed and the air is blown into the desired shape while it is still hot. Then, once the workpiece is completely cooled, the plastic is ejected. Extrusion blow molding has two parts: continuous and intermittent. Continuous means that the parison is continuously extruded, and each piece of plastic is cut by a knife. Intermittent means that there is a stopping point between each mold.

Extrusion blow molding is usually chosen because of its fast production speed and ability to produce complex parts.

Injection blow molding
Injection blow molding involves injecting a plastic or polymer into a core pin and then rotating the core pin through a blow molding machine until the plastic expands into the desired shape. Then cool and squirt in a simple process. However, since this is a relatively slow process, injection blow molding is the least used of the three blow molding techniques.

Stretch blow molding
This process is a bit more complicated than other processes. It uses a small plastic resin that is stretched vertically and then stretched horizontally to give the molecule a cross shape. Molecular hybridization produces higher quality plastics by increasing the barrier strength and preventing stomata. Since blow molding machines limit the design of certain bottles, this option is often chosen for small batch orders.

Blow molding does not have to be a complicated process. Choosing a professional manufacturer can give you more peace of mind. Jilian Plastic has a full range of products, from 5-Gallon Pet Preform to other small parts, I believe that we will never let you down! 

To Prevent Defects In The Production Of Pet Bottle Preform

Today, plastics have become a major choice and are considered the best solution for a wide range of applications because of its many properties such as versatility, moisture resistance, non-corrosiveness, forming ability, and chemistry. And physical strength, ease of processing, economic viability, durability and attractiveness under all environmental conditions.

The main uses of plastic products are in the packaging industry, in the construction and construction industries, as well as in the manufacture of electrical fittings, pipes, household goods, accessories, consumer goods, furniture, toys, and the production of various household items. This shows that the plastics industry plays an important role in influencing the progress of all manufacturing units.

The main problem of Pet Bottle Preform industry

In order to meet the needs of the general public, manufacturers in the plastics industry need to mass produce plastic products. In order to meet the needs of mass-produced consumers, manufacturers sometimes ignore the quality of products. This creates many quality defects and errors in the product, such as

The melt flow rate
tensile strength
Defects in shape and size,
Material thickness is uneven, even more.

These problems caused the entire batch to be rejected. Therefore, manufacturers need to ensure the quality of finished products at all stages of production. This can be achieved by using high quality standardized plastic test instruments.

Jilian molds provide customers with a wide range of pet products, as well as a variety of machines for production. We produce a wide range of products, from 5-Gallon Pet Preform to bottle caps, etc. If you have a need, you must To contact us, we will bring you the perfect solution. 

Jilian Mold 5-gallon Pet Preformdesign Service

Technology drives continue to leap and simplify the manufacturing process in a cost-effective manner. Blow molding technology has brought about tremendous changes in the field of Pet Bottle Preform manufacturing. Blow molding technology allows molds of various geometries to be manufactured to make hollow products (containers, bottles, cans, etc.). The most challenging size and shape. Most PET preform mold manufacturers highlight special molding processes because of their invaluable ability to meet detailed specifications without burning a hole in their pocket.

Blow molding is the best technique when dimensional accuracy is required. This technology has helped several departments produce some of the best products: for example

food and drinks
Sanitary equipment

In addition to precision, blow molded plastics help in the manufacture of products and reduce costs.

Cost-effective aspects of the technology

The process produces plastic parts while reducing the costs associated with labor and failure. In addition, transportation costs can be reduced because the goods shipped to blow molded plastic products are more severe and lighter than metal or glass products. In order to make the packaging of blow molded products more convenient, engineers have found ways to ensure that their packaging consumes less time and space.

bright future

The importance of this program among manufacturers has driven the technology to automation. Introducing automation into blow molding helps make it safer and more user-friendly than its replacement. Jilian Plastics is using this technology to design and produce mold products. We offer our customers a comprehensive range of products, from 5-Gallon Pet Preform to vials, handles, etc. Choose us to give you more choices and always find your own products. 

Jilian Mold 5-gallon Pet Preform Is The Customer's Favorite

The plastic bottle industry typically includes chemical, beverage, food, automotive and cosmetic companies for the packaging of food, beverages, chemicals, beauty products and household products. Plastic bottles are very popular in the current market because of their plasticity, hardness, and ease of transportation. Jilian Molding provides a wide range of plastic bottles for our customers. From 5-Gallon Pet Preform to convenient small plastic bottles, we are the first choice for customers who have a need.

The most common bottles include:

Beverage bottle, mainly made of polyvinyl chloride, high density polyethylene and polyester

Milk jug, mainly made of high density polyethylene

Food bottle, mainly made of PET

Household detergents and cleaners, mainly made of HDPE

Automotive product container, mainly made of HDPE

Chemical product bottle, mainly made of HDPE

Beer bottle, mainly made of PET

The supply chain of plastic bottles is very long. Plastic bottles are used in the following industries and other industries:

Juice production

Auto parts wholesale

Plastic and resin manufacturing


Cleaning agent and soap manufacturing

Dairy production

Soda production

Margarine and edible oil processing

Condiments, condiments and soy sauce production

Petroleum processing

Various stages of plastic bottle manufacturing

Most plastic bottles are made of polyethylene terephthalate (PET) because they are strong, flexible and lightweight. PET is usually transparent or opaque and made of petroleum hydrocarbons.

The first step in the manufacture of plastic bottles is to polymerize PET to produce long molecular chains. The polymerization process produces two impurities, acetaldehyde and diethylene glycol. Although diethylene glycol is generally not a problem due to low yields, if too much acetaldehyde is produced, the bottle may season the contents.

Once the plastic is molded, the first step in making the bottle is called stretch blow molding. During this process, the PET is heated and inserted into the mold using injection molding.

The resulting tube is called a Pet Bottle Preform which is sent to a second mold, inserted into a thin metal rod, and filled with high pressure air.

Due to the pressurized air and heat, the parison is stretched and blown into the mold to form a bottle shape. The flat bottom is then added to the bottle.

Once the bottle is formed, the mold is cooled and the plastic is allowed to set. This is done using indirect or direct cooling methods.

Then remove the bottle from the mold and trim any excess plastic. The bottle can now be shipped in the next step. 

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