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.

Jilian Mold China Pet Bottle Delivery Time Is Short

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

1, plastic processing
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. Therefore, the material must be dried before processing, and its drying temperature is 150 ° C, 4 hours or more, 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, 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.

3, mold and gate design
Pet preforms are generally formed by hot runner molds. There is preferably a heat shield between the mold and the injection molding machine. The thickness of the preform is about 12 mm, and the insulation board must 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, 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 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, 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.

8, matters needing attention

(1) The recycled material should not be too large, otherwise it will easily cause “bridge” at the blanking and affect plasticization.
(2) If the mold temperature is not well controlled or the material temperature is not properly controlled, it is easy to produce “white fog” and is opaque. The mold temperature is low and uniform, the cooling rate is fast, and the crystallization is less, the product is transparent.

Jilian Plastic Mould is an experienced China Pet Bottle design and manufacturer. We are experts in this field. We can provide you with product solutions in the shortest time and can deliver in the shortest time, so Feel free to choose us.

China Pet Bottle Leader – Jilian Mold

First warm up

The pet bottle body portion is softened by heating with a high temperature infrared lamp. In order to maintain the shape of the mouth of the bottle, the neck of the Pet Preform does not need to be heated, so a certain cooling device is required to cool it.

Second, blow molding

At this stage, the preheated pet preform is placed in a finished blow mold and internally pressurized at high pressure to blow the pet preform into the desired bottle.

Blowing machines on the market are generally divided into automatic and semi-automatic.

The automatic blow molding machine performs two operations of blowing the bottle by the operation of the robot, eliminating the need to manually put the preheated pet preform into the blow molding process. Production speed is greatly accelerated, of course, the price is higher than semi-automatic.

Are you also looking for a China Pet Bottle manufacturer that you can trust and choose? Don’t miss the Jilian mold. We are the leader in this industry. We have been providing quality products and services for many years, so come and choose us. We will be your best choice.

China Pet Bottle Chooses Jilian Mold

In the past, Pet Preform packaging has always used PET bottle packaging as an important means of product appearance and pricing. With the development of the market, PET bottle packaging has been paid more and more attention, so that the PET bottle packaging on the market is more and more luxurious, and has formed a trend among the industries.

For the PET bottle packaging, the essence of returning to the packaging, leaving these flashy appearances is the consensus of the current market. The price of flamboyant packaging products is high, exaggerated, and the appearance of packaging is too luxurious, etc., which have gradually become the focus of people’s accusations. In this context, how to reduce the weight of PET bottle packaging has become a trend now.

To provide consumers with useful and useful functions, PET bottle packaging must be taken seriously. Only by constantly improving the practical functions of PET bottles is the way to go in the future.

Welcome to choose Jilian mold, we provide you with a series of high quality pet products, we are the representative of quality China Pet Bottle manufacturers. If you have a need in this area, please don’t miss us.

Jilian Mold Provides The Best China Pet Bottle

Food pet preforms are related to people’s health, so any food-related Pet Preform will have basic requirements and can be used in accordance with standards. The basic requirements are as follows:
1. Package structure that meets quality requirements
In addition to transparency, the package can be configured to meet its functional requirements through its structure and material composition. According to the shape, the representative package includes a box structure box, a square box, and other structural boxes.
2. Regeneration
As a representative package, there is a milk box and a cool food package of a roof box structure, etc. The paper jam used is selected from 250 g/m 2 to 400 g/m 2 depending on the size, shape and contents of the package. The cardboard used for these milk packages is made by extrusion molding of polyethylene on the front and back sides of the cardboard by an extruder. Since paper and polyethylene are relatively easily peeled off or separated in an alkali solution, regeneration of paper components is easily achieved. The recycling of milk packaging can be realized. In addition to the above-mentioned factors that the paper component is easy to regenerate, there is also a reason that only the original pulp is used to produce the cardboard for the packaging.
3. Various barrier properties
Oxygen, water vapor, and light are the causes of deterioration in the contents of the package. One of the methods to add the relevant barrier properties to the package is to compound it with aluminum foil. According to this method, the package can be provided with a function of blocking oxygen, water vapor and light. The aluminum foil composite packaging box allows the contents to be preserved for a long time.
4. Environmental protection
The use of aluminum foil provides a possibility for long-term preservation of the packaged food, but it may cause difficulty in regeneration of the base paper, and may also cause an accident in which the aluminum foil in the incinerated paper container damages the incinerator. By using a barrier material that replaces aluminum foil, it is possible to achieve environmentally friendly and long-term preservation requirements. Typical alternatives are barrier materials such as EVO and silicon vacuum coating.
5. Barrier
Since grape juice tends to lose its unique taste, the important role for paper containers is to keep the contents fresh and fresh. The apple juice absorbs the odor around it, causing changes in its taste. For such contents, the container is required to have a function of blocking external odor, and if the above-mentioned barrier material is used, the external blocking can be successfully achieved.
At the same time, everyone should pay attention to the use of food pet preforms, if you need to directly drink the food must be cleaned or poured into a clean and easy to eat.
As a professional China Pet Bottle manufacturer, Jilian Plastics Co., Ltd. has been providing reliable and reliable pet products for the vast number of consumers. No matter what kind of needs you have in this regard, you can contact us. We, we will provide you with the most perfect solution.

China Pet Bottle Is More Worthy Of Choice

PET is the abbreviation of polyterephthalic acid. The forming principle of PET bottle is divided into two types, injection stretch blow molding and extrusion stretch blow molding. The former is more widely used in process.

The forming principle of the pet bottle is to expand the preform volume according to the contour of the mold by the blow molding machine under high temperature and high pressure conditions in the mold, thereby forming a hollow packaging container with a certain shape and cooling, and then cooling the mold release, with the growth of the blowing technology. The mold grows and the yield is extremely increased. It can process tens of thousands of pet bottles per hour, and all the computer program control system is changed, which increases the stability of the process. The important factors affecting the blow molding process of the PET bottle are temperature control. , heating environment, pre-blowing, etc. Pet Preform and pre-blowing should be noted that the preforming principle of preforms is similar to that of pet bottles. The difference is that the molds and equipment are different. The preforms are hollow specimens that are injected into the mold of the injection molding machine and then formed by high temperature and high pressure. The molecular weight viscosity should not be too low, otherwise it will be easily damaged during the blow molding process. The processing technology of the preform is more mature, and the production efficiency is almost 10 times that of the pet bottle. The influencing factor of the pre-blowing is mainly the flow rate, that is, the feed rate. Should not be too fast, should be the machine processing peak is lower 1/4, domestic equipment (injection molding machine, blow molding machine) are mostly manufactured in Germany and France, have preform supply system, temperature control system, host system, The heating system and the auxiliary manual control system are composed of five parts. With the advancement of the machine and equipment, the manual operation is very important, the program parameters are set, and the automatic production is very stable.

PET material has hygroscopic properties, so in the air, pet preforms or pet bottles will absorb moisture in the air, should be stored in a dry and ventilated place, pet bottles generally have poor heat resistance, mostly used for cold filling, but By changing the mold and changing the shape of the pet bottle, hot filling below 145 degrees Celsius can be achieved.

PET bottles are widely used in beverage packaging, pharmaceutical packaging, cosmetic packaging, glass beer bottles and liquor bottles due to their light weight (about 1/10 of the same volume of glass bottles), non-fragile, stable light transmission and non-toxicity. There have been repeated injuries and it is not easy to recycle. Foreign countries have already turned to PET bottles, and the market prospects for pet bottles are very good.

Choosing Jilian Plastics, we produce China Pet Bottle  with guaranteed quality and have a good reputation and influence in the international market. If you happen to have this demand, then we will be your choice not to be missed. If you are, please come and leave us a message.

How To Choose High Quality Pet Preform

The use of Pet Preform is very common in our lives, with water buckets, cups, including PET water tanks. The storage of fresh food and the PET pot for cleaning clothes belong to the category of PET containers. The quality of pet preforms is closely related to our lives. The PET container is light in weight, not easy to be broken, and is not easily oxidized and corroded, and can be used continuously. However, the harmful substances doped in a good PET container in the production process will be relatively qualified and will not cause harm to the human body, so When we choose pet preforms, there are small tricks.
1. When buying a PET container, pay attention to the appearance of the PET container to see if it is damaged, especially if you look at the thickness of the PET container, and if there are black spots on the surface of the container.
2. Because the main material of the PET container is a variety of chemical compounds, the chemical composition will emit harmful substances in case of extreme conditions, and must be carefully selected when selecting. There is a small mark under each PET container, usually at the bottom of the PET container, a small triangle with 1 to 7 numbers in the small triangle. Each number represents a different material, and we can choose a PET container based on the number.
3. Smell the smell of the PET container. Generally, the taste of the PET container will be lighter than that of the poor quality PET container. The plastic taste of the bad quality container is relatively strong.
4. When choosing a PET container, you should pay attention to its color, look at the sun, view from the side, if it is turbid, it is better than the transparent one, which means that the chemical composition of this inclusion is relatively small.
The above is a little experience when choosing pet products. If you want to buy reliable pet products directly, then Jilian mold is your choice not to be missed. We produce high quality and reliable China Pet Bottle, and they are very affordable in price. If you are interested, please come to us. Leave a message.

China Pet Bottle That Makes You Satisfied

Pet Preform packaging has always been a large-volume production model, and pet preform manufacturers can only rely on large-scale production to win profits. Because the profit of a single pet preform is very low. At the same time, the pet bottle needs to be shaped by the mold, so if you need a personalized pet bottle you need to re-open the mold.

However, with the development of the market, high-end luxury goods consumption is increasingly sought after by the market. Young people are increasingly demanding personalized packaging. For example, last year’s personalized pet bottle label launched by Coca-Cola, printed on the pet bottle label with different labels such as “youth” and “happy” to cater to the individualized appeal of young people. Has won the pursuit of many young people. Nowadays, there is a growing demand for personalized customization of pet bottle packaging in China. In this regard, we believe that there are several professional private custom pet bottle companies that are urgently needed to meet this demand in the market. This market will be special, no longer a large batch of pet bottle ordering orders, but focus on the production and sales of boutique, personalized pet bottle packaging.

Jilian Plastic Mould is a China Pet Bottle manufacturer who is willing to keep trying. We are also improving the performance of our products in terms of personalization. We welcome all interested customers to come and contact us, we will bring you satisfaction. Products and services.

Factors Affecting The Blow Molding Of Pet Preform

Pet Preform and their heating, pre-blowing (position, pressure and flow), stretching rods, high pressure blowing (pressure, position) and molds are factors in the process that affect the bottle making of the blow molding machine.

1.PET preform

PET preforms, also known as parisons, are injection molded of PET pellets. They require that the proportion of recycled materials should not exceed 10% and the number of recycling should not exceed two. PET preforms after injection molding or PET preforms after heating must be cooled for more than 48 hours, and the PET preforms used should not be stored for more than 6 months. Different production dates, especially long-length PET preforms cannot be mixed. The main reason is that the raw material type of the PET preform, the proportion of the secondary material mixed in and the residual stress in the PET preform are different, and these factors have a significant impact on the molding process of the blowing bottle, and should be treated according to the actual situation.

2. Heating

The heating of the PET preform is done by a heating furnace, which is manually set and automatically adjusted. The height of the heating furnace is preferably about 25 mm, and is about 19.6 mm from the conveying wheel. The PET preform continuously runs through the entire oven on the conveying wheel, so that the PET preform is more uniform in heat and can be formed better, which overcomes the shortcomings of the previous PET preform static heating and manual rotation and uneven heating. However, if the heating furnace is improperly adjusted, it will cause uneven distribution of the wall thickness of the blown bottle (such as light weight), bottle mouth enlargement, hard neck and other product defects, and even cause mechanical component torsion failure. The temperature of each area can be adjusted according to the molding condition of the product, and the opening condition of the oven tube should be considered. In addition, the setting of the oven output power also has a large effect on the heating of the PET preform, which controls the output of the entire oven heat. When it is not turned on for a long time, when it is turned on again, the initial output power should be set higher accordingly, and then gradually reduced to the normal state during normal production. The output power is generally about 80%, especially when the ambient temperature is below 5 °C. The effect is more significant.

The blowing production process has a certain relationship with the production environment temperature, and the ambient temperature is generally room temperature (about 22 ° C). If the temperature is too high, the product is prone to agglomeration and agglomeration; the temperature is too low, the product performance is unstable when the machine starts, and the specific operation should be adjusted according to actual conditions and experience.

3. Pre-blowing

The role of pre-blowing in the blowing process is to have the PET preform begin to take shape while the longitudinal strength of the stretch rod is increased by longitudinal stretching. The whole process is that the pre-blowing cam pushes the three-way valve to the pre-blowing position during the blowing process, and is completed by the one-way valve. The pre-blowing position, pressure and flow can all affect the quality of the bottle.

Position: The pre-blowing position is advanced, there will be defects such as skewing and thinning of the center point of the bottom of the bottle, uneven wall thickness of the foot, whitening, light weight, hard neck, and even bottom penetration; after the pre-blowing position is wrong, There will be defects such as light weight, center point thickening, and depression.

Air flow The pre-blowing flow is controlled by a one-way valve, generally 3-4 turns is appropriate. The gas flow is large, the bottom is heavy, the center point is thin and partial, the foot is white, and the wall thickness is uneven; the gas flow is small, the center point becomes thick, and the segmented piece exceeds the standard.

Pressure: The pre-blowing pressure is preferably 0.8-1 MPa. When the pressure is high, the upper and lower weight may be light, the center point is skewed, the wall thickness of the foot is uneven, and the white is whitish; when the pressure is low, the foot is not fully stretched, the bottom is heavy, and the center point is thick.

The molding of the foot and the center of the bottle has the greatest impact on the quality of the bottle. Improper adjustment often causes fatal defects such as bottle explosion (under normal experimental conditions) and leakage.

In the market, Jilian Plastics has become a leader in China Pet Bottle by virtue of its own excellent strength. If you happen to have this demand, you must not miss us. If you miss us, you will regret it.