The Trend Of Lightweight China Pet Bottle

For many years, Jilian Plastics has made considerable efforts in the design and development of pet preforms to make Pet Preform lighter as much as possible without affecting their performance and processability.

Over time, the task of pet preform development is more challenging: we are doing everything we can to achieve the goal of reducing weight.

The injection compression technology of Jilian mold is the last important step to make the bottom, bottle and shoulder of PET preforms thinner – thus perfecting the bottleneck.

The bottleneck is the thickest part of the bottle wall, so on the surface, it is very potential to reduce the bottle weight. However, after in-depth research, it was discovered that the reality is not so simple. Designing a lightweight bottleneck requires a detailed study of the path of the product throughout the process chain. Designing a lighter bottleneck requires a mold that involves pet preforms and a complete solution without damage handling, filling and sealing.

The entire Chinese pet bottle industry has seen the demand for lightweight products. Jilian Plastic has many years of experience in the production of China Pet Bottle. Choose us to bring you satisfactory service and high quality and reliable products.

China Pet Bottle To Small Package Development

In recent years, Pet Preform have been increasingly used in the field of liquid food packaging. PET preforms have the characteristics of large capacity, firmness, lightness, portability, refrigerating and recyclability, which expands their application in the field of liquid food packaging. Taking the beverage industry as an example, according to incomplete statistics, the annual global consumption of plastic containers for beverage bottles is more than 10 million tons, and its production and sales are growing at a rate of 10% to 19% per year.

In the dairy industry, acid milk beverages have maintained a high growth rate of more than 30% in the Chinese dairy market for three consecutive years, becoming a category with great development potential in the dairy industry. PET preform packaging is the fastest growing packaging type of container for acidic milk beverages, and its development rate even exceeds the growth rate of the product. The core consumer group of small-package PET preforms under 220ml is children.

After more than ten years of development, the market foundation of small-package PET preform acidic milk beverages is solid and stable, and it is developing rapidly. PET preforms have become the leading packaging form for children’s acidic milk beverages with a market share of 94%. Large-packaged acidic milk beverages larger than 350ml are new products appearing on the market in the past two years, and their market share has increased rapidly. The target customer base is young women aged 18-25. After several years of development, the range of consumers of large-packaged acidic milk beverages has been expanding, and PET preforms have become the dominant packaging form for large-packaged milk beverages.

Jilian Plastics saw the development trend of the modern China Pet Bottle industry. We have continuously introduced pet packaging bottles in small packages, which have been favored and loved by our customers.

Jilian Mold China Pet Bottle Experienced

the chances of seeing pet preforms in life are still quite large. Below, the preform manufacturers will lead you to understand the pet preforms. Pet preforms are typical injection molding products, easy to transport, mostly PET material, uniform texture, good insulation, is the intermediate product of PET bottles, oil barrels. In general, pet preform injection needs to pay attention to the following aspects:

Note 1: Injection speed

Generally, the injection speed is fast, which prevents premature coagulation during injection. But too fast, the high shear rate makes the material brittle. The shot is usually completed in 4 seconds.

Note 2: PET treatment

Since the PET macromolecule contains a lipid group and has a certain hydrophilicity, the pellet is sensitive to water at a high temperature. When the moisture content exceeds the limit, the molecular weight of the PET decreases during processing, and the product is colored and brittle. In this case, the material must be dried before processing, and the drying temperature is 150 ° C, more than 4 hours, generally 170 ° C, 3-4 hours. Airborne methods can be used to verify that the material is completely dry. The proportion of recycled materials should not exceed 25%, and the recycled materials should be thoroughly dried.

Note 3: Staying time

Do not use excessive residence times to prevent molecular weight degradation. Try to avoid temperatures above 300 °C. If the shutdown is less than 15 minutes. Only need to be air-blasted; if it is more than 15 minutes, clean it with viscosity PE and reduce the temperature of the barrel to PE temperature until it is turned on again.

Note 4: Injection molding machine selection

Since PET has a stable time after melting point and a high melting point, it is necessary to use an injection system with more temperature control sections and less self-friction heat during plasticization, and the actual weight of the product (aqueous mouth material) cannot be less than the machine injection. 2/3 of the amount.

Nowadays, there are many pet product suppliers in the market. You may wish to choose Jilian Plastic Mould. We are a China Pet Bottle manufacturer with rich experience in the market. With many years of experience in the market, we can provide you with products and products. service.

Jilian Mold China Pet Bottle Is Your Good Choice

The first step in the blow molding process directly affects the quality of the finished product of the Pet Preform, so the selection criteria for the preform production is relatively high. So what is the selection criteria for preforms for pet preform packaging during blow molding? To prepare a blow molded bottle, in the first injection molded preform of the PET section, it requires twice the proportion of recycled material is not too high, generally can not exceed 5 percent, no more than twice the amount of recovery and molecular weight and The viscosity is not too low, generally from 31,000 to 50,000, and the intrinsic viscosity is from 0.78 to 0.85 grams per cubic meter. Injection molded preforms should be stored for more than 48 hours prior to use. After the heating has not been used, the preform must be reheated for more than 48 hours before being used for heating. The storage time of the preform should not exceed 6 months. The advantages and disadvantages of pet preform PET materials depend to a large extent on the difficulty of the blow molding process, the easy setting of materials and the establishment of a reasonable preform molding process, and also determine the difficulty of blow molding of preform PET bottles, prefabricated parts The requirements are pure, transparent, free of impurities, the same color, length and shame.
If you want to choose a preform with guaranteed quality, then Jilian Plastic is your good choice. We are a safe and reliable China Pet Bottle manufacturer. We have accumulated many years of experience in the market and are experts you can trust.

The Role Of China Pet Bottle Is Very Important

Very people are very strange to the word Pet Preform. Although this product is not common in us, it can bring us a lot of benefits, such as the PET bottles we usually see and so on. A product is closely related. It can be said that there is no such product. Many of the equipments we use today cannot be used normally. What are the functional characteristics of this product?

The functional characteristics of the PET preform is that the material is tough, but the toughness is good. Therefore, the manufacturing process is more and more convenient, and it can be molded better. The customer’s need for style can also be well received. The second feature is that the surface is smooth, looks very beautiful, and is an environmentally friendly product, and will not release some toxic gases.

The functional feature is that the material is soft and the function of high temperature resistance is good. Therefore, the requirements for processing are not very high, so it is natural and convenient for the processing workshop, so that there is some cost. The decline, and the natural value of the products we send to them is also quite large.

What is the use of PET preforms?

PET preforms may not be known to many people. They are originally the intermediates of processed products. After the process of blowing, it can cause some products that are usually used in our daily life, such as PET bottles. What is the use of an intermediate? We should be familiar with this issue.

The use of PET preforms is still very important. The use of one can be used as an intermediate. After being made, it can be better viewed. If there are unpleasant places, it can be easily corrected, and it will not become a waste after completion. The use of the second is that the manufacturing is relatively easy to control, and it is very good to send the mold to us, so that the effect is better for the manufacture of the seat. The use of three is that the raw material of this product is usually compared with simple processing, so the use for us is to reduce the cost of work, of course, it can also reduce the workload, in the mold, the natural can be better invested in the inspection of the manufacturing side, and Can reduce some mistakes, so as to better protect the benefits of our seat.

Want to know how to buy a better quality China Pet Bottle? Don’t miss the Jilian mold, we have accumulated a wealth of experience, bringing satisfactory products and quality new services to our customers.

China Pet Bottle Chooses Jilian Mold

Very people are very strange to the word Pet Preform. Although this product is not common in us, it can bring us a lot of benefits, such as the plastic bottles we usually see and so on. A product is closely related. It can be said that there is no such product. Many of the equipments we use today cannot be used normally. What are the functional characteristics of this product?

The functional characteristics of the PET preform is that the material is tough, but the toughness is good. Therefore, the manufacturing process is more and more convenient, and it can be molded better. The customer’s need for style can also be well received. The second feature is that the surface is smooth, looks very beautiful, and is an environmentally friendly product, and will not release some toxic gases.

The functional feature is that the material is soft and the function of high temperature resistance is good. Therefore, the requirements for processing are not very high, so it is natural and convenient for the processing workshop, so that there is some cost. The decline, and the natural value of the products we send to them is also quite large.

What is the use of PET preforms?

PET preforms may not be known to many people. They are originally intermediates of processed products. After the process of blowing, it can cause some products that are usually used in our daily life, such as plastic bottles. What is the use of an intermediate? We should be familiar with this issue.

The use of PET preforms is still very important. The use of one can be used as an intermediate. After being made, it can be better viewed. If there are unpleasant places, it can be easily corrected, and it will not become a waste after completion. The use of the second is that the manufacturing is relatively easy to control, and it is very good to send the mold to us, so that the effect is better for the manufacture of the seat. The use of three is that the raw material of this product is usually compared with simple processing, so the use for us is to reduce the cost of work, of course, it can also reduce the workload, in the mold, the natural can be better invested in the inspection of the manufacturing side, and Can reduce some mistakes, so as to better protect the benefits of our seat.

If you are still looking for a reliable China Pet Bottle manufacturer, then don’t miss the Jilian mold. We are the mold manufacturing experts around you, the quality products and the intimate service. I believe that we will not choose. Let you down.

China Pet Bottle Is Your Success Choice

  1. Pet Preformhave uniform wall thickness and the most concentrated part of consumers’ attention. The printed appearance should be flat and continuous; if the liquid PET preform contains handles, grooves, ribs, etc.
  2. The printing surface of the PET preform should be designed so that it cannot cause inconvenience to the printing operation. The label surface should be flat. A “sash” can be designed on the surface of the PET preform to accurately position the label.

    3. When the appearance of the PET preform is marked, no movement occurs, such as the middle of the PET preform is relatively thin,

    4. Change the appearance of the PET preform and increase the circumferential groove or rib of the appearance of the PET preform to improve the rigidity and bending resistance of the PET preform. Longitudinal grooves or ribs eliminate the offset, sagging or deformation of the PET preform under temporary load.

    If the material is high density polyethylene or polypropylene,

    5. When designing extruded PET preforms, the cross section of PET preforms should be rectangular or elliptical. For low density polyethylene or other flexible PET preforms, the cross section is round, which is convenient for content. The material was extruded from the PET preform.

    6. When blow molding, it tends to be hardened first. Therefore, the wall thickness of this part is also larger. At the edge and the corner, the final contact of the parison is inflated, and the wall thickness of the portion is small. Therefore, the edges and horns of the PET preform should be designed to be rounded.

Choosing a professional China Pet Bottle manufacturer, Jilian Plastics is an expert in this field. We can provide you with various professional opinions and suggestions. We can provide you with more comprehensive support and help.

Trustworthy China Pet Bottle

Pet Preform come in a variety of sizes, shapes and colors. They range from opaque to translucent or transparent, so different measurement techniques are required depending on the type of sample.

Opaque pet preforms are opaque and are preferably measured using a diffuse d/8 ball reflector.

Translucent preforms allow light to pass through, but only diffuse, so it is not possible to clearly distinguish objects on the other side. Both the reflection and transmission measurement modes work well depending on the translucency of the sample. Based on experience,

– If your customer will view the path length of the sample, you can see the slight detail of the thumb or finger through the preform, and then the transmission is the preferred method of measurement.

– If you don’t see the details, the reflection is preferred.

The path length is defined as the thickness of the sample from the point where the light enters the sample to the thickness of the sample.

Transparent preforms allow light to pass through with little or no interruption or distortion so that objects on the other side can be clearly seen. These pet preforms can only be measured using a gearbox gauge.

As a professional China Pet Bottle manufacturer, Jilian Mould will provide you with comprehensive support and guarantee, and we will become your most trusted and chosen partner.

Chinese Pet Bottles Have Rich Experience

The hollow blow molding of the Pet Preform is to insert the tubular PET which is still softened from the extruder into the molded pet preform mold, and then pass the compressed air, and use the pressure of the air to make the along the cavity. The deformation is thereby blown into a hollow product having a short neck opening. Hollow blow molding has been widely used to produce a variety of thin shell hollow products, chemical and daily packaging containers, as well as children’s toys.
Hollow blow molding (also known as blow molding) is a method of inflating a hot-melt shaped embryo closed in a mold by means of gas pressure to form a hollow product, and is a third common PET processing method, and is also developing rapidly. A PET molding method.
The mold for blow molding has only a female mold (female mold). Compared with injection molding, the equipment has lower cost, strong adaptability, good formability (such as low stress), and can be formed with complex undulating curves (shapes). product.
Blown grade PET includes: polyolefin, engineering PET and elastomer; blow molding applications involve automotive, office equipment, household appliances, medical, etc.; can produce 60,000 bottles per hour and can also manufacture large blow moldings (The weight of the piece is up to 180kg), the multi-layer blow molding technology has been greatly developed; the blow molding equipment has adopted the closed-loop control system of microcomputer and solid-state electronics, and the blow molding machinery is more specialized and more distinctive.
Welcome to choose Jilian mold, our brand has many years of business experience, is a China Pet Bottle manufacturer that you can trust and love, our professional team can provide you with effective advice and caring service, choose us is the choice A trust.

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.