Author Archives: nicolepreform

China Pet Bottle Manufacturers Welcome You To Choose

Want to know how much it costs to inject a Pet Preform mold? This is one of the most important issues, really. However, the answer is not as simple as it seems. Just like buying a car, a new computer, or even a pair of shoes, the options and prices will vary depending on the level of detail and detail. good news? Although the mold is the most expensive part of the process, once you buy it, you have built your own business model for the low cost of each product for many years to come.

Although you may want to find the cheapest mold, please keep the following in mind before purchasing:

The mold is made of two materials: aluminum or steel. Aluminum molds are the lower price of the two molds, which may be a good choice if you don’t need long-term use of the mold or produce a large number of parts. Hardened steel molds have a longer production life and produce higher quality parts, higher quality and longer running times, bringing you more benefits. Consider the volume you need to create, the length of time you plan to create a product with each mold, and the consistency you want the product to maintain. Although aluminum has a place in the market and is definitely a cheaper option, if you have to change it as soon as possible, it may cost you even more in the long run.

The complexity of the parts you make plays a big part in the total cost of the mold. Factors such as the material you will use in your mold, the number of cavities required, and the type of mold base will affect the cost of the entire mold. However, manufacturing your product with a higher grade mold will result in a higher quality product that will only build your customer confidence and reputation.

Long-term consideration
If the cost of quality molds is a stumbling block, consider the long-term prospects. The amortization of the mold after many years of use is a good way to break down the price and understand how it affects the price of the part. Suppose you choose a high quality steel mold and it costs 30,000 yuan. When you break it down in three years, you create 400,000 parts during this time; the annual cost is only $10,000. Even better, the cost of each mold you produce is less than 0.08 yuan! This is very valuable.

Providing a wealth of information about your products and needs to the China Pet Bottle mold manufacturer, Jilian Mold, is the key to getting the best cost estimate. While the initial cost may be higher than your expectations for high quality molds, the end result of your product will pay off in the next few years.

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Understand The Blow Molding Of Pet Preform

It is important to understand the Pet Preform blow molding process so that you can successfully design and manufacture the parts or products you want. Ideally, you will end up with a high quality product that is efficiently created with as little waste as possible.

What is blow molding?

This process is used to make plastic hollow parts (such as bottles and containers) where air pressure fills the mold cavity with soft plastic.

Blow molding is divided into two steps:

First, a starting tube (called a parison) of molten plastic is produced.
Next, inflate the tube to the desired final shape, cool it, and release it from the mold.

Blow molding materials and products

Blow molding is limited to thermoplastics:

Polyethylene – the most commonly used polymer. In particular, high density and high molecular weight polyethylene (HDPE and HMWPE) provide the hardness required for the finished product, making the use of these materials more economical.
Polypropylene (polypropylene)
Polyvinyl chloride
Polyethylene terephthalate

Blow molding project design process

A well-designed design is critical to creating a finished product that meets your exact needs while saving manufacturing costs. Here is a brief overview of the design steps to bring your product to life:

Create a model of the part. The store team created a 3D drawing with a CAD program, which allowed you to see your product accurately before making a physical mold.
Design and manufacture molds. The attention to detail in the design phase ensures ease of production and efficiency.
Run a quality check. After the design and mold making are approved, your work begins. Throughout the process, the blow molding team conducts intensive inspections on a regular basis to monitor quality, reliability and consistency.

If you are considering using blow molding technology to produce your next product, then contact Gillian Plastics now. We are a professional China Pet Bottle manufacturer. Welcome to leave a message and inquire.

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The Method Of Reducing The Cost Of Pet Preform

Choose the right material

Consider the application of your Pet Preform parts. Can you use low-end polymers and less additives? Special additives and resins will increase your material costs. Finding the simplest and most viable solution is still suitable for the last part of the application.
Evaluation customization

If you want to save, you can minimize the amount of customization of the molded part. This may include surface textures, stamps or color dyes. These aesthetics work well, but are they absolutely necessary? This is one of the easiest ways to lose weight.
Make full use of home molds

You can reduce the cost per piece by producing more parts. You can also create a mold that fits multiple parts together, as long as they are relatively similar in size and material. If you think about it, the more parts you can take out of the mold at a time, the faster you can produce, and the fewer cycles the mold will need to go through. This is maximizing efficiency.
Cooperation with Chinese pet bottle manufacturers

The shorter the production cycle, the faster the final product will be delivered and the more orders will be placed. Transferring production from overseas to domestic production is indeed one of the smartest and easiest ways to reduce production time and bring goods to customers faster. China Pet Bottle manufacturers also have additional benefits that are well worth the trust and support of others and will not disappoint you.

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Mass Production Of Pet Bottle Preform

The advent of blow molding machines has greatly facilitated our daily life. For every Pet Preform manufacturer, the daily maintenance and inspection of blow molding machines is very important:

1 no feed level added; several cases need to be checked;

Did you not expect the hopper, if it is: need to hurry

No: Please check if the hoist control contactor is energized. If it is energized, check that the motor is energized and loaded because the preform (embryo) may get stuck. The easiest way to belt is to help improve manually.

If the control contactor of the hoist is not energized, check that the preform is detecting that the electric eye is not on the same line as the reflector.

2 feeding the old card feeding tray: This situation is a headache. From an empirical point of view, this phenomenon is relatively small if the length of the preform (embryo) is relatively long and the cutting weight is large.

3 After the bottle is blown out, it cannot be taken out of the mold.

First, the mold should be opened and the mold should be opened and closed manually. If it is normal, please run in the dry running state, if it is normal.

Please check the exhaust time setting. If the exhaust is set up properly and it will fail every time you blow the bottle, you can judge the problem with the exhaust valve. Please open the exhaust valve to check the spring and seal. There is also a phenomenon in which the exhaust sound is relatively large or the sound is not good.

If you are experiencing a large number of Pet Bottle Preform, and occasionally come over this mold can not open the mold, please check if there is a screw inside the lock pin, in addition, please check if the clamping force is too large, if it is too large, it should be re-standard Adjustment.

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5-gallon Pet Preform To Choose Gillian Mold

Plastics, also known as polymers, come in a wide variety. They are composed of different elements such as hydrogen, chlorine, oxygen and nitrogen. They also have high molecular weight.

Manufacturing plastics are often designed to mimic the ingredients of natural materials such as wood.

They are made by the conversion of natural products. Sometimes they are made up of natural chemicals, petroleum or basic chemicals in coal.
Manufacturing custom Pet Bottle Preform parts

Producing custom plastic parts usually follows a series of events. The only difference is that the main manufacturing stage is based on the geometry of the plastic part.

Their actual requirements are also considered.

One idea of ​​how to make plastic parts from plastic injection molding is crucial.

Once you have learned the basics of production, these steps become relatively easy.

Here’s a general idea of ​​how to make custom plastic parts.
Propose a design

It is important that you design a design for the custom plastic part you want to create.

First draw a design sketch on a piece of paper.

In the end, your sketch should have enough detail so you can draw its 3D model.

If you don’t have this skill, please ask a professional to help.

This is also a phase in which the main changes happen to make the product achievable.

Presenting a design to a team of experts will greatly help you achieve your goals. If possible, ask a manufacturing technical expert to help complete your design.
Decide which plastic molding process is best for the design

There are different molding methods for making plastics. Custom injection molding is arguably the most popular technology.

Plastic injection molding is used to produce plastic parts using a simple mold opening and closing function.

The process you choose will depend on the different variables. These include your initial design, the number of parts required, and the overall use of the product.
Build prototype

This will increase your total expenses, but developing a prototype like a final product will be a huge help.

In the long run, prototypes can also avoid wasting time and resources.

There are tons of prototype tools that can be used to make custom plastic parts, such as resin prototype machines.

Building a prototype will allow you to fix problems that may not be apparent in the 3D model of your design.

It also determines the efficiency and functionality of the final product.

If you have the methods and tools to make your custom plastic parts, make them the way you choose.

Otherwise, find a plastics manufacturing company to help you get the job done.

Some companies only produce custom plastic parts. Others participate in the packaging and shipping process throughout the process.

In the end, choose the company that best suits your needs.

Jilian Plastic is the reliable mold manufacturer you can trust. We can customize 5-Gallon Pet Preform for you. Welcome to contact us!

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China Pet Bottle Response Is Very Good

PET (polyethylene terephthalate) has been rapidly replaced by many chemical fibers since it was industrialized by DuPont in 1953 due to its good physical processing properties and cost-effectiveness brought about by the cost reduction of large industrial production. Other varieties have now become the largest group of synthetic fibers.

1. Development status of global Pet Preform

Since 2003, global PET production capacity has expanded at an average annual rate of 9%. In 2005, the production capacity has reached 54.7 million tons, and the output in 2005 was 41 million tons. According to PCi’s forecast, by 2008, global PET production capacity will be It has reached 67 million tons and the output is 50 million tons.

At present, the PET product range has also expanded from the original polyester staple fiber to the current series of polyester staple fiber, polyester filament, polyester bottle, polyester film, non-woven fabric, engineering plastics and composite multifunctional products. There are thousands of kinds of products, and the product series is also developed from the initial 100% short fiber to the balanced development of multiple varieties.

The large-scale industrialization of PET in China started in the early 1980s, and it has grown stronger than in the mid-1990s. At present, the production capacity has exceeded 20 million tons, becoming the world’s largest producer and consumer of PET. China Pet Bottle already have in the world market. Very good response, successfully attracted the attention of customers.

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Jilian Mold To Improve The Thermal Performance Of Pet Preform

The equipment system of Jilian Plastic Mold is constantly developing and progressing. The crystallization of the surface of the Pet Preform has improved the heat resistance.
System functions

1. The loading and unloading station of the preform can be operated continuously. In addition, we have designed a new mechanism that does not cause any damage to the preform, such as surface scratches.
2. The heater unit (light unit) is designed by our own unique technology, which saves power consumption (saving more than 30% compared to other crystallizers) and has an excellent efficiency reflector.
3. The system can handle the flexible layout of existing preform production lines.
4. In order to obtain a more precise boundary between the crystalline and amorphous parts, the water-cooling chamber (insulation) is designed by ourselves.
5. The rotating core consists of a support portion of the preform and a heat insulating portion. In order to improve the quality of the crystal, such as size, neck profile, crystallinity and crystal boundary position, all our techniques are concentrated on this device.
6. Since the heater unit and the cooling chamber are modular in design, they are easy to install and remove.
7. SCR controlled heater strength and heater life are improved.
8. The entire operation and condition setting of the crystallizer can be controlled and alerted under the touch panel, so the settings for optimizing crystallization conditions and process operations are very simple and fast.
9. The system is designed to minimize floor space.

As a leader among many China Pet Bottle manufacturers, Jilian Plastics has continuously improved the production level of its products and brought more diversified and advanced products to our customers. I believe that we are absolutely not wrong.

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China Pet Bottle Gain Love And Trust

Blow molding is a molten tube (called a parison or preform) formed of a thermoplastic material (polymer or resin). The parison or preform is placed in a cavity, which is expanded by compressed air to form a cavity. It is cooled before being taken out of the mold. Nowadays, China Pet Bottle have been loved and trusted by customers all over the world for their excellent quality and suitable price.

Any hollow thermoplastic part can be made into a blow mold. Parts are not limited to bottles, they have only one opening, and their diameter or size is usually smaller than the overall size. These are some of the most common shapes used in consumer packaging, but there are other typical blow moldings.

The basic concept of blow molding comes from the glass blow molding process. As early as the 1880s, there was a patented method for extrusion molding and blow molding of cellophane polymers. Early methods and materials for blow molding plastics were very rough and not suitable for large-scale production. It was not until the late 1930s that the first commercial machines and products were used to produce blow molded bottles. The main event that sparked and drove early commercial blow molding was the development of low-density and high-density polyethylene for blow molding and consumer packaging.

The main difference between blow moulds is the method of forming the parison; the size of the parison and the method of moving between the parison and the blow mould by extrusion or injection molding; whether fixed, shuttle, linear or Rotating.

In an extruded Pet Preform mold (EMM), the polymer melts and the solid extruded melt is extruded through a die to form a hollow tube or parison. The two halves of the cooling mold are then closed around the parison, pressurized air is introduced through the pin or needle, and it expands into a mold shape to form a hollow portion. After the hot plastic is sufficiently cooled, the mold is opened and the parts are taken out.

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Why Do Pet Preform Choose Injection Molding?

Injection molding is one of the plastic molding techniques. The method is used to manufacture a range of shipping containers, industrial packaging, cosmetics, household chemicals, and different types of closures, such as Pet Preform or perfume bottles. Why is injection molding a good way to create product packaging?
What does injection molding include?

Injection molding makes it possible to create plastic packaging for a variety of uses and in different forms. Injection methods can be used to make food containers and lids, and interestingly, packaging designed for body care, even for packaging of household chemicals and commodities.

Injection molding involves injecting a plasticized material into an injection mold and then curing. The plastic used in this process is in the form of granules. However, this material also has other forms of processing, using prepolymers and reagents that are polymerized during the molding process. This injection molding method is called reaction injection molding (RIM).

Injection molding machines are essential in the manufacture of plastic packaging. They can be used to mold thermoplastic and thermoset materials. Jilian Plastic Mould is a professional and reliable China Pet Bottle manufacturer. Our brand has many years of experience in the market, so if you want to buy professional and reliable pet products, there is absolutely nothing wrong with choosing us.

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Problems In The Process Of Extrusion Of Pet Preform

It seems that the extrusion flash is only a one-time phenomenon in the molding process. However, the way the flash is designed is critical to maintaining the integrity of the Pet Preform. Here are some things that might go wrong:

The flash bag did not fill up enough space, so the pressure to push the plastic back into the container was too small to properly weld the gap. This condition is characterized by a “v” shaped notch at the pinch, indicating that the seam may be weak where the seam may crack.

The flash pocket is not large enough to hold all of the flash material, which creates excessive pressure towards the container. This creates a very thick plastic bump at the pinch. Depending on the characteristics of the plastic, the cooling rate and other processing factors, this extra thickness may cool at different speeds, move the volume, and cracks may occur.

If the processing conditions or mold pinch-off geometry is incorrect for any reason, it may have a negative impact on the integrity of the parison bond in the pinch-off area where the edges of the two molds are joined together.

After molding, the flash is removed manually or mechanically. Care must be taken, otherwise the container/part may be damaged, just like any post-forming process.

Flash can affect the appearance and function of plastic containers or components. Rough or excessive flash is visually unattractive. Excessive flash around the bottle neck can interfere with proper operation of the lid or cap.

Good extrusion blow molding design and engineering repair flash

Many adjustments can be made to solve the flash and pinch-off problems. This is mainly science – there is still a little art.

Pay special attention to the pinch-off area on the mold to ensure proper clearance. When the part is removed from the mold, too small gaps and flash edges will fall into the molded assembly. The gap is too big, it is difficult to trim, and it looks bad. Check the mold regularly to make sure the pinched land is in good shape.

Changing the parison thickness and clamping speed helps to adjust the amount of plastic that is pressed back into the container.

Changing the viscosity of the parison can adjust how much material will flow back into the container.

Control the duration and pressure of air blown into the mold. Make sure the process provides proper ventilation.

Test different flash pocket shapes. Adding a baffle or channel changes the speed at which the plastic is pushed back into the container and also affects the cooling rate.

Jilian Plastics has continuously adjusted the design and crafts of China Pet Bottle. We have also won the love and praise of many customers and determined to become a better reputation in the market.

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