PET features

PET plastic material is relatively stable, only at certain wavelengths of ultraviolet (250-350nm) according to the sun, the temperature is higher than 100 ℃,when light reaches 3eV limit actinic it will occur degradation.

PET plastic material does not hydrolyze at room temperature,therefore not afraid of rain and moisture content in the air.
Because PET has good resistance, and thus are not affected by acid rain components.
Production process of PET material generates no pollutants, use process does not produce harmful gases.
Can crushed recycling.
As combustion of waste treatment, due to its caloric value is low and the combustion of flammable and does not produce harmful gases.
Biodegradable polyester can be completely degraded in the natural environment and fertilizer yard, Most final decomposed into CO2 and H2O, no secondary pollution.

Blowing process of different plastic material

1,PE bottle blowing ( Much Softer material, with a solid color, once molded product)
2,PP bottle blowing ( Much harder material, with a solid color, once molded product)
3,PET bottle blowing(Good transparency. Belongs to environmentally friendly materials, two molded product)
4,PVC bottle blowing(hard material, not environmental protection,transparency is worse than PET, but brightness is better than PP and PE , currently less used )

Ink Spray painting

The most common used method of spraying the surface of plastic products can be divided into:
A, Ordinary coloring,Such kind of painring mostly spray by hand. it doesnot have strong abrasion, and easy to swap.
B,PU Varnish oil: Spray on the surface of the plastic product after spraying the base oil.In this way, it can achieve the effect of anti rubbing and gloss finish. General home applicances or daily necessities are treated by PU process.
C, UN varnish oil: Spray a layer of UV gloss oil after spraying the base ink. Both the gloss and rubbing can avhieve a good result. General phone mold products and communications products die more with such an approach.

Printing methods on bottles

There are several printing methods to print text or pattern on the surface of plastic products.
1,Silkscreen printing
This method is the most common one, it is generally suitable for flat or curvature of small print .
2,curved surface printing
Firstly put the ink into the gravure that curved with text and pattern, then copy the text or images onto a curved surface, the surface will reuse the text or pattern and transferred to the surface of a molded product, and finally curing the ink by heat treatment or ultraviolet light irradiation method.
Curved surface printing process:
A,Degreasing of the mould.
B,Surface treatment
C,Printing
D,Curing ink

Printing process
A,put the ink into the gravure
B,scrape excess ink
C,extrude the surface to get the ink
D,Transfer the ink to the molded products
E,clean the surface and layout

Transfer printing
Advantages:It can be administered several colors in a single operation.
Disadvantages:Low productivity and cannot get a strong opacity impression.

Hotstamping:
Under controlled temperature and pressure, using the color foils and heat mould that engraved with patterns or font

How to make good use of plastic packaging

The recovery rate of cosmetic plastic packaging is very low. So it has become one of the sources of pollution.

In recent years, although the increasingly awareness of garbage classification, but the complex material of cosmetic plastic bottle brings many confusion at the time of separation and recovery process.It is a great need to improve the plastic bottle recycling.

There must be a certain rules between plastic packaging and the bottle appearance requirement.It should be try best to make bottle simplify,so as to be recognized by customers, in order to recycling easier.On the other hand, the suppliers should establish a sound recycling channels.If we can achieve and effective recycling and reuse it, it will be a great resources.

Producing spray bottle needs key techniques

Nowadays, more and more fields are using mist spray bottles. Such as cosmetics, pharmas and chemicals industries.So many manufacturers begins to produce and sell the plastic spray bottles.

The nozzle depends on the quality of the spray bottle.And the performance and quality of the spray bottle rely on the use life and experience.But the manufacturers who manufacturing the spray nozzle needs professional technique.

Currently, the nozzle that used in the market are generally produced by professional manufacturers that located in Zhejiang province. Obviously, for a new plastic bottle manufacturer,they need to purchase the spray nozzle from the professional one.If the cosmetic packaging supplier wants to involve into the spray bottle fields, they need to establish production line fo nozzle spray.

Therefore, for those manufacturers who producing spray bottle, they need to know the importance of the nozzle spray and get its key technique.

Bottle Coating

Blocking UV wavelengths can provide you with the protection your product needs. Two of the most common methods used in the past have been absorption and converting; both of these methods only work for a limited time. The longer the UV inhibitor is exposed to the UV Wavelengths the less effective it becomes, shortening your product shelf life. Filtering of UV Wavelengths is just plain bad. In today’s high end displays and artificial light there is a multitude of UV light that is just not being ‘filtered’.
Bottle Coatings has developed a patented two coat process that will eliminate all UVA/UVB and UVC wavelengths from penetration the coating and damaging your product. Continuous exposure is a more serious problem than intermittent exposure, since attack is dependent on the extent and degree of exposure. Many natural and synthetic polymers are attacked by ultra-violet radiation and products made using these materials may crack or disintegrate (if they’re not UV-stable).

Injection molding is the main method of thermoplastic plastic molding

Put granular or powder to the hopper of plastic injection machine. Under the heat circumstance, then melt the materials. And maintain the flow state, and then under a certain pressure, through injection machine nozzle and injection mold gating system, the materials inject into the closed mold,after cooling, molten plastic solidified into the plastic parts.

Some common sense on storing medicine bottles

Now, more and more families have the habit of keeping some commonly used drugs, and to prepare for possible period of want or need. Coupled with the modern humanity generally improved, and have a certain understanding of the commonly used drugs, will also increase the consciousness , people however, need to pay attention to some details.
First of all, the date of production on the medicine bottle need special attention, We should check every time before using. It will cause the great harm on the human body by the expired drugs.
Secondly, the drug will be put back to the original medicine bottles, some drugs are stored in brown or light proof bottle, that’s because this drug has requirements of avoiding light, in this case if these drugs are placed in the other bottle apparently will damage the formation of drug.
The desiccant vial, dry cotton do not remove, because when we open the btotle, it will contact with air, the water will affect dry environment required for drug.
Finally, for oral medicine bottles, such as syrup. We should not directly contact with the bottle mouth, because the bacteria will leave in the cork, and will influent the effect of the drug.

We need to avoid eating pesticide mistakenly again

Some time ago, a man mistakenly recognized pesticide bottle as seasoning bottle, and died from it, This news makes us to reconsider the status of pesticide bottle packaging. It is necessary to analyze, in order to avoid a similar incident happen again.

Firstly, the present features of pesticide bottle packaging is not obvious. The edible oil bottle, generally we see the bottle then we will know what it is. But the pesticide bottle by bottle shape is very difficult to distinguish. It is necessary to form the pesticide bottle packaging features, so that it can effectively reduce the ingestion of the situation. The second, pesticide bottle capacity should not be too large, generally pesticide doses are relatively small, if pesticide bottle capacity is too large, the pesticide placed time will increase, thereby increasing the probability of eating. Finally, the anti-theft pesticide bottle packaging cover need to put more effort, especially to prevent opening efforts without discrimination.