Author: Site Editor Publish Time: 14-04-2022 Origin: Site
Cosmetic plastic bottles are one of the most commonly used containers for cosmetic packaging today, with various processes, among which the blowing process is one. This article will introduce the blowing process of cosmetic plastic bottles and introduce two important accessories of cosmetic plastic bottles: pump head and outer cap.
Here is the content list
The blowing process of cosmetic plastic bottles
The pump head of cosmetic plastic bottles
The outer cap of cosmetic plastic bottles
The blowing process of plastic bottles for cosmetic bottles is mainly realized by a blow molding machine. The blowing process according to plastic material can be divided into PE blowing, PP blowing, PET blowing and PETG blowing. PE blowing produces soft plastic bottles, and uses a more solid color, the biggest feature is forming. PET is an environmentally friendly material and is characterized by double-forming, while PETG blow bottles have better translucency than PET, but are not commonly used in China because of their high cost and expense.
The combination form of blowing cosmetic plastic bottles: blowing bottle + inner stopper + outer cap or pump head outer cover + Chiuchou cap + lift-off cap
Generally, cosmetic plastic bottles made of PP and PE materials will use an inner stopper, while cosmetic plastic bottles made of other materials do not often use an inner stopper; cosmetic plastic bottles made of PP, ABS, and acrylic materials will come with an outer cap, the form of the outer cap in addition to the above three, there are electroplating and electrochemical aluminum, this type of outer cap is often seen in the packaging of toner containers, while the pump head outer cover is commonly used in the packaging of serums and lotions; lift-off cover and Chiaki cover are mostly used for large-circulation daily chemical line.
The pump head is divided into two types of ligature and screw type, from the function is divided into spray, foundation cream, lotion pump, aerosol valve, vacuum bottle.
Pump head size to match the caliber of the bottle to determine the size of the spray specifications for 12.5mm-24mm, the water output of 0.1ml / time - 0.2ml / time, generally used for perfume, gel water, and other products on the packaging with the same caliber receiver length can be determined according to the height of the bottle.
Emulsion pump specifications range from 16ml to 38ml, the water output is 0.28ml/time - 3.1ml/time, generally used for creams and washing products.
Vacuum bottle is usually cylindrical, specifications for 15ml-50ml, individual 100ml, the overall capacity is small, relying on the principle of atmospheric pressure, can avoid cosmetics in the use of the process of pollution, vacuum bottles have electrochemical aluminum, plastic plating, and colored plastic, the price is more expensive than other general containers, the general ordering requirements are not high.
The outer cover of plastic cosmetic bottles is mostly made of PP material, but also ABC material and acrylic material. The structure can be divided into a double-layer lid and a single-layer lid. The double-layer cover mainly has the following four combinations.
l PP inner cover + PS and acrylic material outer cover.
l PP inner cover + outer cover PP, ABS material plating.
l PP inner cover + electroplated aluminum outer cover.
l PP inner cover + PP or ABS oil spraying outer cover
The single-layer cover is generally made of PP material. Both single-layer cover and double-layer cover can be stamped with gold or silver and sprayed with oil. The double-layer cover of the inner cover can be a silk-screened logo, the outer cover with transparency can be a transparent effect.
