The comparison of one step blow molding and two step molding process

Complete injection, pulling , blowing process in a machine called the one-step process.One step is done after the preform injection stretch blow cooling action.
Power saving
High productivity
Without human
Reduce pollution

And the two-step method is the separation of injection and process on two machines separately.
The first step is to use a injection molding machine to inject bottle preform.
The second step is reheating preforms the preforms, stretch it become bottle.
It can reduce the investment ( personnel and equipment). Much smaller than the volume of the bottle for easy transportation and storage . Off-season production of preforms can be blown into the bottle during the peak season.

Process analysis of HDPE plastic cap

Process analysis of plastic parts , including technical and economic aspects , in technical terms , according to drawings, only need to analyze the characteristics of plastic parts shape , size , dimensioning method , precision , surface quality and material properties and other factors, whether fits the mold plastic process requirements.In economic terms , the main cost analysis based on plastic parts production volume, to clarify the use of the economic benefits can be achieved in the production of injection.

1,pieces of plastic shapes and sizes: Different shapes and sizes of plastic parts , with different requirements for a molding process.
2,Plastic parts dimensional accuracy and appearance requirements: Plastic parts dimensional accuracy and appearance requirements have relevant to process for molding , the mold structure type and manufacturing precision and so on.

3,The size of the production volume , directly affect the structure of the type of mold, when the general mass production, a multi-cavity mold can be used to improve productivity ; when small batches , use a single cavity mold and other molds for production to reduce manufacturing costs.

What advantages does PET Bottle have?

As we known, PET bottles are made from PET plastic material.PET bottles are popular in cosmetic packaging. Lets tell you the detailed advantages that PET bottle have.

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 matrial 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.

Tell you something about plastic bottle material

1,Plastic bottle material is usually made of PP, PE, K material , AS, ABS, acrylic , PET , etc.
2,Typically used for cosmetic container. Thick wall cream jar , bottle caps, corks , gaskets, pump head , dust cover are made of injection molding; PET blowing is a two-step molding , tube embryos as injection molding, product packaging is blowing molding. Other container with thinner wall like lotion bottle , washing bottle is blowing molding.
3,PET material is environmentally friendly materials, with high barrier , lightweight , shatterproof properties , chemical resistance and strong transparency,it can be made into pearl, colored , magnetic white and transparent,it is widely used in water-related gel . Bottle neck wide is 16mm, 18mm, 22mm, 24mm diameter , can be coupled pump head .
4,Acrylic material for injection bottles, poor chemical resistance, generally can not be directly loaded cream , it needs to be equipped with barrier liner , the filling is not allow too full to prevent the cream enters between the liner and acrylic bottle. To avoid crack, due to post- scratch look particularly pronounced in high permeability,transport packaging requirements are high, and the wall is especially thick , but the price is quite expensive.
5,AS, ABS: AS transparency is better than ABS.
6,Silkscreen printing have standard printing inks and UV inks , UV ink effect is much better , shiny and three-dimensional.The printing requirement should be identified before the production , the effect of different materials in the screen will be different .
By Canvard Packaging

New product-Foaming hand soap dispenser with rubber brush

Foam soap dispenser pump with rubber brush allows us to clean our skin deeply.
Smoth rubber likes our teeth brush.
It is a new attractive idea for face wash foam.
See below how it works
1, Press the foam pump several times, the foam products will be pumped out throught the rubber.

2, See the foam, then smooth skin softly.

3,Good quality rubber cleans the skin without any hurt.

Packaging selection of essential oils

Essential oils are volatile aromatic substances, which are from plants, flowers, leaves, stems, roots and fruits. We can get essential oils by steam distillation method, extrusion method, soaking method or solvent extraction method.
Using a plastic bottle is easy to corrose the high concentrations of essential oils.The volatile of essential oil is very strong, so we need to use dark bottle packaging, like amber glass bottle, acrylic plastic bottle.