Blow Molding Process Of Pet Preform

Multi-layer blow molding process
Multi-layer blow molding is the use of several plastics to make a multi-layer composite Pet Preform in a suitable manner and then formed by a general blow molding process.
Multi-layer blow molding is mainly to meet the higher demand for plastic packaging containers such as barrier properties, flame retardancy, weather resistance, heat insulation, internal and external dichroism, etc. for cosmetics, pharmaceuticals and foods.
For example, a double-layer blow molded bottle with an outer layer of PVC and an inner layer of PE, the outer layer of PVC provides good barrier properties, rigidity, flame retardancy and weather resistance, while the inner layer PE makes the bottle non-toxic to the package. Excellent chemical resistance.
Typical applications for multilayer blow molded articles are the packaging of milk, natural juices, tea, ketchup, carbonated soft drinks (CSD) and beer.
Multi-layer extrusion blow molding refers to the plastic preforms of different kinds of plastics after being plasticized by a plurality of extruders, and then formed into a billet layer which is layered and tightly bonded together by a special machine head, and then fed into a blow mold. A technique for inflating a multi-layer hollow article.
This blow molding technology is developed on the basis of single-layer extrusion blow molding. The molding process is almost the same as that of single-layer extrusion blow molding, except that the molding equipment uses multiple extruders to plasticize different types of plastics. The machine head used should be able to extrude the tubular structure of the multi-layer structure, and the three-layer tube blank extrusion equipment

Injection stretch blow molding process
Stretch blow molding: a blow molding process by biaxially oriented stretching, which is divided into a one-step injection drawing process and a two-step injection drawing process.
One-step method: hot pet preform method
Pet preforms, stretching, and blow molding are done in one machine. Pet preforms are semi-finished products in the production process.
The combination of devices is:
1 consists of an extruder and a blow molding machine;
2 consists of an injection machine and a blow molding machine.
Two-step method: cold pet preform method
After the pet preform is cooled, the cold pet preform is reheated for stretching and blow molding. Including injection of preforms for stretch-blow molding of pet preforms; extrusion of pet preforms by directional stretch blow molding.
There are currently four combinations of stretch blow molding:
1-step extrusion stretch blow molding for processing PVC;
2 two-step extrusion stretch blow molding for processing PVC phase PP;
3 one-step injection stretch blow molding for processing PET and RPVC;
4 two-step injection stretch blow molding for processing PET.
Blow molding materials: PAN, PET, PVC, PP, etc.
01. Injecting pet preforms into a directional stretch blow molding process
The bottomed pet preform is first injection molded and continuously sent to a heating furnace (infrared or electric heating) by a conveyor belt (or a rotating belt), heated to a stretching temperature, and then incorporated into a blow mold by means of a stretching rod. Stretched and then inflated. It is necessary to control the appropriate stretching temperature, and it can be molded by multi-cavity (2-8), and the production capacity can reach 250-2400 per hour (capacity is 340-1800g beverage bottle).
02. Extrusion pet preform blank oriented blow molding process
The plastic is first extruded into a tube and cut into a length to serve as a cold billet. Put it into the heating furnace and heat it to the stretching temperature, then take the heated pet preform from the furnace to the molding table through the conveying device, so that one end of the pet preform forms a bottle neck and a thread, and the pet preform is along the axis. After pulling 1.0-1.3 times, the blow mold was closed for inflation molding.
Another method is to take out the heated pet preform from the furnace, stretch it in the axial direction of the tube in the stretching device, and send it to the blow mold. The mold inflates the stretched pet preform and inflates it. Forming and trimming waste edges. The production capacity of this method can reach 3,000 bottles per hour and the capacity is one liter.
Applications: PET beverage bottles, PP bottles, PC bottles

Choosing a professional China Pet Bottle manufacturer, Jilian Plastic is your good choice. Whether it is in the design, production or follow-up service, you will get the most satisfaction.

The Color Design Of China Pet Bottle

Seizing the consumer’s consumer psychology can open up a very good market. The long-term development of Pet Preform manufacturers recognizes that the color of pet preforms has a great influence on their own development. People at different stages do not choose the color of PET bottles. In the same way, I have such personal feelings, and my favorite color is chosen to buy.

The psychological effects of color have a certain impact. As our age changes, children like very bright colors. Red and yellow are the preferences of ordinary babies. The favorite color of boys is green, red, yellow, white, and black. The favorite colors of girls are green, red, white, yellow, and black. Adults are rich in life experience and cultural knowledge. In addition to the associations from life, there are more cultural factors. According to the color psychology of the consumer groups of different age groups, the PET bottle design can be targeted. According to the different perceptions of color by people of different ages, we have designed such PET bottles to provide us with a wider market.

The color design of China Pet Bottle has a great impact on their own development, and seizes market dynamics to win a wider space for their own development.

How To Design The Pet Preform Mold

Pet Preform are something we often see in our life. Let the blow-molded PET product factory tell us how to improve the quality of blow-molded pet bottle preforms.
First of all, the mold design should be reasonable and the best structural scheme should be selected as much as possible for manufacturing. Designers should fully consider the technical requirements of the mold and the feasibility and manufacturability of its structural design.  The design of the mould is the key link to improve the overall quality of the mould, which requires us to consider all aspects of influencing factors.  It mainly includes the selection of mold materials, the availability and safety of mold structures, the processing performance of mold parts and the convenience of mold maintenance.
At the stage of mold structure design, we should try our best to design the mold to be compact and easy to operate, and at the same time ensure that the mold parts have sufficient rigidity and strength.
Welcome to choose a professional China Pet Bottle design manufacturer-Jilian plastic mold. We are trustworthy and can provide you with many professional opinions and suggestions.  Please contact us if necessary, I believe we won’t let you down.

Jilian Mold China Pet Bottle Experience

Pet Preform are very widely used in our lives, but since they are often used for food when they are used, we should pay attention to its correct and safe use.

First of all, we must choose a transparent PET bottle with good quality. It must have non-toxic and harmless requirements, and some bottles will contain some chemical monomers, which are not suitable for long-term storage of wine and vinegar. Will produce some substances that are not good for the human body. Therefore, when we drink beverages or red wine in the future, we should not choose transparent PET bottles as much as possible. Even if we want to buy transparent PET bottles, we should also pay attention to drinking precautions.

In addition, it should be used according to its different materials. If some materials are not suitable for high temperature, they should not be heated during use, otherwise our health will be affected.

Welcome to choose the China Pet Bottle of Jilian Plastics. We have many years of experience in the market, and we can fully meet your needs and provide you with customized services, so please contact us.

Jilian Mold Has Rich Experience In China Pet Bottle

We are no stranger to Pet Preform products. Oil drums, beverage bottles, etc. in life can be said to be very widely used, so how to store it is better.

Because the raw material of the PET bottle is PET, the PET product is easily affected by the ultraviolet rays in the sunlight, causing aging and the like. What’s more, it is made from disposable raw materials. If it is used improperly, it will cause harmful substances and affect human health. Proper storage should be in a dry environment and avoid exposure to the sun. There is also the effect of avoiding high temperatures on it, and many materials can be deformed by high temperatures.

We should also pay attention to the use of PET bottles, although it is easy to use, but also pay attention to its scope of use, such as can not be used to hold food, etc., to avoid deterioration.

Jilian Plastic Mould is your trusted and selected China Pet Bottle supplier. With our years of experience in the market and the support and help of professional teams, you will be able to get the perfect product for you.

China Pet Bottle Allows You To Have Satisfactory Service

A PET bottle is a plastic material called polyethylene terephthalate (PET) or PET, which is a combination of Terephthalic acid and Ethylene glycol. The resulting polymer. PET plastics are light in weight, high in transparency, resistant to impact and easy to break. They also block carbon dioxide gas and keep the soda in qi.

Pet Preform have strong applicability and are widely used in daily necessities, daily packaging and other fields. From mold processing to machine equipment, it is extremely critical, easy to get started, and difficult to do. Due to its light weight and good preservation, the technical trend of stress-relieving functions such as heat resistance and pressure resistance makes PET bottles the mainstay of today’s beverage packaging. Many beverages that require high-temperature bacteria to be filled, such as flavored water, juice, dairy products, beverages, sports drinks, etc., have also been packaged in PET bottles. PET bottles have become the main packaging materials for beverage products. Due to its low environmental pollution and energy consumption, PET bottles have gradually replaced traditional packaging materials in today’s environmental protection. It has the functions of heat resistance and pressure resistance, and has recently replaced various PVC bottles, bags, aluminum cans, iron cans, glass bottles, etc., and has become the packaging with the most growth potential.

Welcome to choose the China Pet Bottle of Jilian Plastics. With our many years of experience in the market, we believe that we can bring you high-quality products and bring you satisfactory service. If you are excited, please leave us a message. Let’s go.

The Advantage Of Using Pet Preform Is Obvious

Beverages have always been loved and welcomed by consumers in the market, and the commonly used packaging is Pet Preform packaging, which will become the mainstream of the market, and the advantages of pet preforms have always far exceeded that of glass products.

Nowadays, the mainstream people of beverages are young people, so we need to be biased towards this younger group when designing the appearance. At the same time, we can use the glassy texture packaging to preserve the characteristics of the glass, but in order to reduce the cost, PET products are used. The advantage to break the market of glass beverage bottle construction, without losing the high end of the glass, but also solve the danger of fragility and blasting, while reducing the cost, which is a two-pronged, breakthrough innovation in the formation of PET bottles and beverage bottles.

Or, beverage bottles can completely get rid of glass products, find another packaging model, and create another different packaging form to win market recognition; no matter how the beverage packaging is in the future, innovation and breakthrough are ours. It is worth looking forward to, in the context of such chaos, it is necessary to make corresponding adjustments; at the same time, it is time to make reforms.

Jilian Plastic Mould Co., Ltd. develops by quality, survives by service, brings high-quality products, fast delivery service, low-cost China Pet Bottle, and not only develops in various fields, but now focuses on washing PET bottles. Production and research in the field of cosmetics PET bottles, pets, etc., to provide you with a wide range of products and specifications.

Jilian Mold To Bring You Quality Pet Preform

For a good Pet Preform mold, it means that we can produce good preforms of the same quality. The pet preform mold can be fully automated and the production efficiency is high. For a good preform, first of all, when pushing the preform off, there should be sound; when we open the preform to a certain position, it can open itself quickly, which requires butterfly design and raw materials suitable for preforms; When the preform is closed with the bottle, it must be waterproof.

After we know the demand for good preforms, we can make pet preform molds accordingly. First, flip the mold design, the important thing is the injection gate position selection, cooling system design and ejection structure design. After the mold design is complete, our engineers will meet to discuss mold movements to improve the mold structure.

Second, flip the mold, we use stainless steel as the core and cavity, which requires two machining. Regardless of the matching function or the butterfly function, the machining accuracy is very demanding. In particular, the butterfly thickness will determine the closure and opening of the preform.

Third, the testing and production of pet preform molds. For this type of mold, machine setup experience is very important, including injection speed and pressure settings. When we consider all the factors, we can get high quality pet preform molds.

If you have any questions about preform molding, please feel free to contact me. We can provide you with the perfect solution for pet moulds. Jilian Plastics produces high quality and reliable China Pet Bottle products. I believe that we will never let you down.

Jilian Mold Production Of Reliable China Pet Bottle

Pet Preform are re-processed by blow molding to form PET bottles, including bottles for food, candy, spices, health products, medicines, reagents, beverages, mineral water, etc. This bottle making method is called two-step method, that is, by injection molding. A method of forming a preform and again performing blow molding to form a PET bottle.

High quality PET bottles should have the following characteristics:
(1) The appearance of the bottle mouth
The end face of the bottle mouth should be flat, no damage gap, complete thread, complete crystallization, no flashing, no spinning, no deformation, no oil on the inside and outside.
(2) bottle body
Good shape, high transparency, no bubbles, black spots, oil stains, dead materials, scratches, hard rings, atomization, whitish, colored bottles should be uniform in color, no obvious color difference.
(3) bottom of the bottle
Good shape, no dents, no bulging, no center shop deviation, no crack at the bottom of the bottle, no delamination.
(4) Health
The surface of the bottle is clean, dry, free of oil and dust, no odor, no impurities in the bottle.
(5) Appearance after filling
The bottle mouth and the bottle body have no shrinkage deformation, no flat bottle, no side wall deformation, no convex bottom, no depression.

Choosing Jilian Plastic Mould, we are a representative of quality China Pet Bottle, which can bring you comprehensive and caring after-sales service. What are you still hesitating? Come and contact us!

Jilian Mold Complete China Pet Bottle Production Management

In the Pet Preform industry, customization, uniqueness and uniqueness seem to be important requirements of the entire industry. The unique appearance and uniqueness of the brand in the market is indeed very important, and in the next market development, pet preform manufacturers go to Customization is inevitable, and the slowening of the brand will make this trend more and more obvious. In today’s society, there is no brand without a company. If there is no quality, there will be no tomorrow, and it will naturally be eliminated.

Customized manufacturers need to meet two conditions, large-scale, systematic pet bottle manufacturers, which is obviously not an easy task, first of all equipment and mold requirements to improve, focus on every detail; and custom first mold production, equipment update The cost of capital invested is already very large, and to achieve customized production, these have to be met; at the same time there are many needs to be met in the customization.

Jilian Plastic Mould is an experienced China Pet Bottle. We have a complete systemized production management. We only need you to provide design. We communicate the needs of the project and quickly develop the mold after understanding your needs. Sample, sample confirmation, mass production, logistics delivery, technical support and other process management.