Professional China Pet Bottle Manufacturer

Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with various organic solvents. Polyester (PET), polyethylene (PE) and polypropylene (PP) are widely used as raw materials in plastic bottles. After adding the corresponding organic solvents, they are heated at a high temperature and then blown, blown, or injection molded through plastic molds. Plastic container.

It is mainly used for liquid or solid disposable plastic packaging containers such as beverages, food, pickles, honey, dried fruits, edible oils, agricultural veterinary drugs. Plastic bottles are characterized by not easy to break, low cost, high transparency, and food grade raw materials.

There are various problems with Pet Preform. Let’s analyze it carefully. First of all, plastic bottles are labor-intensive industries, and the current labor costs are rising. For plastic bottle enterprises, labor costs have become a huge pressure. Secondly, the prices of raw materials continue to rise, and the various costs of the market have risen, and raw materials have risen sharply, which has created another layer of pressure on plastic bottle companies. Third, with the European debt crisis and the weakness of the world economy, foreign trade orders for plastic bottles have gradually declined, and many foreign trade companies have fought in the domestic market, which has brought greater pressure on the already competitive domestic plastic bottle market. The battle is getting more and more powerful, and the profits of enterprises are getting lower and lower.

For plastic bottle manufacturers, under the current various pressures, we should take the road of industrial upgrading, take the road of innovation in the field of plastic packaging, and strive to increase the added value of plastic bottles. From the design, production and sales of plastic bottles, continuous improvement.

Jilian Plastic Mould is a plastic bottle manufacturer specializing in the production of China Pet Bottle and multi-layer composite high-barrier bottles and various high-grade plastic cartons for supporting cartons, tin cans, aluminum bottles, etc. As a professional plastic bottle manufacturer, we We believe that only high-quality products can win the reputation of the market, in order to enhance the value of customers.

China Pet Bottle Quality Is Guaranteed

In the beverage and food industry, the cosmetics industry, and the pharmaceutical industry, Pet Preform are an important packaging container. With the widespread use of pet preforms, people have further understood the safety performance of pet bottles.

The pet bottle has less impurities and good sealing performance. It is used for beverages, foods, medicines, etc. It has good quality assurance. The production of pet bottles will be made according to the application industry. Therefore, the bottom of the PET bottle now has a triangular triangle symbol to facilitate the classification of pet bottles. The pet bottle is not used for wine and vinegar. Because the pet bottle still contains a small amount of ethylene monomer, it is used to hold fat-soluble organic substances such as wine and vinegar, which will produce chemical ingredients that are not beneficial to the human body.

The pet bottle is easy to carry, not afraid of falling, has the characteristics of acid and alkali resistance, and can be recycled. It has an increasing share in the packaging industry in the future. Jilian Plastics has always provided our customers with quality China Pet Bottle. Our products are guaranteed in quality and have a better market and influence in the market.

How To Design Injection Molding Of Pet Preform

Manufacturers of injection molded products need to consider the design of Pet Preform.
(1) When designing a pressure pet bottle, in the case of high-density polyethylene and polypropylene, the pet bottle has a rectangular or elliptical cross section, and is made of low-density polyethylene and other flexible pet bottles. It is best to make a round shape. This content is squeezed out of the pet bottle. The pet bottle and pet parts are mainly caps and seals. The design of the pet bottle mouth should be subject to key tests. How can the pet bottle mouth tightly fit the lid and the sealer to the bottom of the pet bottle, which is a weak part of the pet bottle mechanics. Therefore, the bottom of the pet bottle is generally designed like a concave shape. The position of the pet bottle corner, as well as the depression inside, are too large arcs. Because the accumulation of pet bottles is very convenient, the stability of the ceiling of the pet bottle is increased, and the bottom of the pet bottle has an inner groove.

(2) In the case of marking the surface of the pet bottle, the reference sticker is flat. Design a “frame” on the surface of the pet bottle to move it incorrectly without moving. At the time of molding, the first contact portion is likely to be a portion that is hardened first. Therefore, the wall of that part will become thicker. The edge and the rotating part are type-expanded, and at the last contact, the wall of the part becomes thicker. Therefore, the edges and corner portions of the pet bottle are designed to be rounded. When the surface shape of the pet bottle is changed, the portion of the pet bottle is relatively thin, which can increase the groove and the rib around the surface of the pet bottle, and can improve the rigidity and the resistance of the pet bottle. By strengthening the longitudinal grooves or ribs, the long-term load, sagging or deformation of the pet bottle can be removed.

(3) The printed surface of the pet bottle is the part where the consumer concentrates. The printing surface is flat and continuous; if the pet bottle includes a steering wheel, a groove, a rib, etc., it must be designed so that the printing operation cannot be inconvenient. Although the oval pet bottle is strong, the manufacturing cost of the mold is also high. Therefore, in order to ensure the rigidity of the pet bottle, in addition to selecting a material with high rigidity, the rigidity of the pet bottle and the load resistance are improved by the shape design of the pet bottle.

(4) Many pets are notched, so the pet bottle is prone to cracks and cracks at the front end, the root of the mouth, the neck, etc., so these parts are designed to be rounded. For the intersection of the rectangular pet bottle, in order to support most of the load of the pet bottle, part of the wall will become thicker, which can improve the rigidity and load resistance of the pet bottle.

The China Pet Bottle designed and manufactured by Jilian Plastics has always been loved and praised by consumers in the market. We also welcome customers who have needs to contact us. We believe that our products will not let everyone down.

China Pet Bottle Is Your Right Hand

PET chemical name is polyethylene terephthalate, also known as polyester. The most widely used among customers is GF-PET, mainly Pet Preform. The rheology of PET in the molten state is better, and the effect of pressure on the viscosity is greater than the temperature. Therefore, the fluidity of the melt is mainly changed from the pressure.

1, plastic processing

Because PET macromolecules contain a lipid group and have a certain hydrophilicity, the pellets are sensitive to water at high temperatures. When the moisture content exceeds the limit, the molecular weight of PET decreases during processing, and the finished product is colored and brittle. In this case, it is necessary to dry the material before processing, and the drying temperature is 150 ° C, more than 4 hours, generally 170 ° C, 3-4 hours. It is not completely boring to use the air-launch method to check the data. The share of the recovered material should generally not exceed 25%, and the recovered material should be completely boring.

2, injection molding machine selection

Because PET has a short time after the melting point and the melting point is high, it is necessary to select an injection system with more temperature control sections and less self-conflict heat generation during plasticization, and the finished product (aqueous mouth material) practical component can not be smaller than the machine injection. 2/3 of the amount. Based on these requirements, Ramada has developed a small and medium-sized series of PET plasticizing systems in recent years. The clamping force is selected to be greater than 6300t/m2.

3, mold and gate planning

The PET preform is generally formed by a warm runner mold. There must be a heat shield between the mold and the injection molding machine. The thickness of the PET preform is about 12 mm, and the heat shield must be able to accept high pressure. Exhaust is necessary to prevent partial overheating or chipping, but the depth of the exhaust port should generally not exceed 0.03mm, otherwise the flash will occur simply.

4, the melting temperature

It can be measured by air-to-air method. Between 270 and 295 ° C, the enhanced grade GF-PET can be set to 290-315 ° C and the like.

5, injection speed

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

6, back pressure

The lower the better, the prevention of wear. Generally do not exceed 100bar. Generally no need to use.

7, staying moments

Do not use excessive residence times to prevent molecular weight degradation. Try to prevent temperatures above 300 °C. If the shutdown is less than 15 minutes. It only needs to be air-aired; if it exceeds 15 minutes, it should be cleaned with viscosity PE and the barrel temperature will be lowered to PE temperature until it is turned on again.

8, matters needing attention

(1) The material to be recycled should not be too large, otherwise it will easily occur at the place of the material to “bridge” and affect plasticization.

(2) If the mold temperature is not well controlled or the material temperature is not properly controlled, it is prone to “white fog” and not clear. The mold temperature is low and uniform, the cooling rate is fast, and the crystallization is less, the finished product is bright.

Choosing a reliable China Pet Bottle manufacturer will solve all your worries. We have many years of experience in the market and we believe that we can be your right hand.

What Is The Advantage Of Jilian Plastics Pet Preform?

Nowadays, there are more and more types of enterprises. Jilian Plastics specializes in the production of Pet Preform. With more than ten years of production experience, what is its production advantage?

When it comes to PET preforms, I don’t think everyone will be unfamiliar. The preforms are similar to the ones that are often used in the laboratory. From the outside, the preforms are almost the same as the test tubes, but the details are detailed. From the point of view, the preform has its own many characteristics. There is a very important feature that is not found in ordinary test tubes. It is about the wall of the preform, which is thicker than the test tube. It is important that the preform can still stand on the table. This is also a test tube. Can not be done, it can be said that the preform has a better place, which also allows some experimental preforms to replace the test tube, Jilian mold is focused on the production of the preform used, and can be said that we are manufacturing It is very professional.

Jilian mold has a sophisticated China Pet Bottle production technology, so that our products can be sold nationwide. If you also want to buy a quality pet product, we will be a good choice for you.

Pet Preform Injection Precautions

From the scientific name, you don’t necessarily know what PET preforms are. In fact, the chances of seeing Pet Preform in life are still quite large. Let’s take a look at PET preforms. PET preform is a typical injection molding product, easy to transport, mostly PET material, uniform texture, good insulation, is the intermediate product of PET bottles, oil barrels. In general, PET preform injection requires attention to the following aspects:

1. PET treatment: Since the PET macromolecule contains a lipid group and has certain hydrophilicity, the pellet is sensitive to water at high temperature. When the moisture content exceeds the limit, the molecular weight of the PET decreases during processing, and the product is colored. Become 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.

2. Selection of injection molding machine: Since PET has a stable time after melting point and a high melting point, it is necessary to select an injection system with more temperature control sections and less self-friction heat during plasticization, and the product (water-containing material) The actual weight cannot be less than 2/3 of the machine’s injection volume.

3, mold and gate design: PET preforms are generally formed by hot runner mold, between the mold and the injection molding machine template, there should be a heat insulation board, the thickness of which is about 12mm, and the insulation board must be able to withstand high pressure. Exhaust gas must be sufficient to avoid local overheating or chipping, but the depth of the exhaust port should not exceed 0.03mm, otherwise it will easily produce flash.

4, melting temperature: can be measured by air-to-air method. Between 270 and 295 ° C, the enhanced grade GF-PET can be set to 290-315 ° C and the like.

5, injection speed: the general injection speed is fast, can prevent premature coagulation during injection. But too fast, the high shear rate makes the material brittle. The shot is usually completed in 4 seconds.

6, back pressure: the lower the better, so as not to wear. Generally no more than 100bar. Usually no need to use.

7. Residence time: Do not use excessive residence time to prevent molecular weight from falling. 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.

Although the PET preform injection process is not complicated, the quality of the PET preform is closely related to the injection molding process. If you want to know more about the precautions of making China Pet Bottle, then you are welcome to contact Jilian Plastics. We are experts in this field and believe that we can bring you the answers you want.

China Pet Bottle Has More Protection

Today, transparent PET bottle manufacturers tell you about the development prospects of transparent PET bottles. The main development direction of transparent Pet Preform is the packaging of pharmaceutical packaging, beverage packaging and health care products. Another trend is to replace recycled PET with degradable PET.
Ordinary cosmetics and detergent packaging containers are mostly made of high-density polyethylene. Since transparent PET bottle containers allow consumers to clearly see the contents, consumers are increasingly demanding transparent PET bottle containers. Highly transparent containers have good transparency and gloss, and are highly appreciated. welcome.
How to stand out in the modern market where competition is fierce and sales methods are constantly evolving. In addition to relying on product innovation and high-quality, fast service to win, transparent packaging is becoming more and more important. From the market point of view, packaging is a form product in the whole product, and it is a very important part. Through it, consumers can generate purchasing desires and stimulate consumption. It has been proved that transparent packaging often stimulates consumption and creates purchasing power.
The transparent package has a full transparent package and a partial transparent package. It is a product form that displays the food inside part or all through a transparent packaging material, which enables the purchaser to directly see the image, color and quality of the food, and can reflect the natural beauty of the product. It is also convenient for customers to identify and purchase. Such as transparent PET food bottles, candy cans, wine bottles, etc. at a glance, so that consumers can not help but undoubtedly, sales have skyrocketed.
Jilian Plastic Mould is a China Pet Bottle manufacturer with rich experience. We have many years of production experience in the market. We can provide you with more protection. I believe that with the support and help of our professional experience, Can bring you a satisfactory service.

China Pet Bottle Product Design Considerations

When designing Pet Preform, transparent PET bottle manufacturers want to use them to bring certain benefits, so as to ensure the long-term development of our company. In fact, for PET bottles, it is characterized by strong plasticity. Made into the shape and appearance we want, only the features or the more classic appearance can attract customers better. Not all grotesque products can bring customers enjoyment. When designing, we can’t It is necessary to combine the actual situation and produce the corresponding shape of the product, which naturally attracts more customers.
As a pet preform manufacturer for many years, Jilian Plastics has a certain opinion on this aspect. I believe everyone has seen it. For all kinds of PET bottles on the market, although they are all kinds of As such, some PET bottle shapes really capture the eye of the consumer. However, the PET bottle shape is not just as simple as capturing the eye of the consumer, it needs to carry more content. A reasonable PET bottle form is convenient for product filling, which is convenient for product labeling. It is a good way to balance the space occupied by PET bottles during transportation, and it is convenient and convenient for consumers to use. These will all involve the cost control of PET bottle packaging products, and will also involve whether PET bottle packaging is popular with consumers. Therefore, a good PET bottle shape needs to have a comprehensive and comprehensive understanding of the market. It’s not the designer who imagined it in front of the computer. He needs to combine a lot of things in order to design a more suitable product.
Transparent PET bottles are a kind of products that we can’t lack in our lives. We also often come into contact with them. We like good-looking products and like unique products, but suitable is an important factor, so China Pet Bottle manufacturers are designing. Pay attention to this aspect of the content, can not blindly pursue novelty, and forget the basic factors.

Characteristics Of Blow Molding Pet Preform

(1) The cost of blow molding machinery (especially blow molding Pet Preform molds) is low. For example, when molding the same product, the cost of blow molding machinery is about 1/3 or 1/2 of the injection molding machine, and the production cost of the product. Also lower.

(2) In blow molding, the parison is formed by extrusion at a lower pressure and inflated at a low pressure (mostly 0.2 to 1.0 MPa), so the residual stress of the product is small, and it is resistant to stretching and impact. The various strains such as bending and environment have higher functions and have better functions. In injection blow molding, the plastic melt passes through the mold flow path and the gate at high pressure (15 to 140 MPa), which causes uneven stress distribution.

(3) The molecular weight of blown grade plastics (such as PE) is much higher than that of injection grade plastics. Such blow molded products have high impact toughness and high environmental stress cracking resistance, which is often advantageous for producing large capacity plastic bottles.

(4) Since the blow mold is composed only of the female mold, the wall thickness of the bottle body can be changed by simply scheduling the die cavity gap or the extrusion condition, which is very difficult for the product which cannot accurately calculate the required wall thickness in advance. advantageous. For injection molding, the cost of changing the wall thickness of the product is much higher.

(5) Blow molding can form a product with a very thin wall thickness, and such a product cannot be molded by an injection method.

(6) Blow molding can form a messy, irregular and monolithic product. When using injection blow molding, two or more pieces must be produced first, and then combined by fastener cooperation, solvent bonding or ultrasonic welding.

Choosing Jilian mold, we have many years of experience in the market, we can bring you the best China Pet Bottle, so what are you still hesitating? If you are picking a reliable preform manufacturer, don’t miss us! Jilian Plastics welcomes your message and consultation at any time.

The Quality Of China Pet Bottle Should Be Guaranteed

At present, the domestic market has a large demand for medium and high-end China Pet Bottle molds, among which the home appliance, automobile and plastic products industries have the largest demand for molds. It is understood that during the “Twelfth Five-Year Plan” period, the overall trend of the mold market is stable and upward, but domestic molds must meet the needs of users in terms of quality and delivery time.

The plastic mold industry is a traditional industry in China. It started earlier and developed more maturely. At the same time, it has also grown a group of SMEs with potential. Under the current international competition environment, the original advantages can no longer meet the requirements of modern trade processes. Compressing costs and the need to maximize profits, accelerating the development of e-commerce has become an inevitable choice for the domestic plastics industry to meet the challenges of economic globalization, grasp the initiative of development, and enhance international competitiveness. In the 21st century, e-commerce will become a plastic machinery mold. The main driving force for the growth of trade in the industry.

The leaders of the Pet Preform mold processing enterprises, after determining the development direction of the enterprise, must grasp the key points of the leadership work, clarify the key work of the enterprise, and not waste energy on other insignificant small things, if one thing It is impossible to promote employee enthusiasm, and it does not promote short-term or long-term promotion of corporate development profitability. This matter is unnecessary and can be ignored.