company news about Types and characteristics of plastic tubes commonly used in cosmetic packaging

At present, plastic tubes commonly used in cosmetic packaging are mainly composed of aluminum-plastic composite tubes, pull-plastic composite tubes and plastic co-extruded tubes, which can meet various needs of cosmetic packaging such as hygiene and blocking.

1. Aluminum-plastic composite tube

Aluminum-plastic composite tube is aluminum foil, plastic film, which is made of sheet by pneumatic composite process, and then processed into a tubular packaging container by a special tube machine. The typical structure is PE/PE EAA/AL/PE EAA/PE. The aluminum-plastic composite tube is mainly used for packaging cosmetics with high hygiene and barrier properties. The barrier layer is generally aluminum foil, and its barrier properties depend on the pinhole degree of the aluminum foil. With the continuous improvement of technology, the thickness of the aluminum foil shielding layer of the aluminum-plastic composite tube has been reduced from the original 40m to 12m or even 9m, which greatly saves resources.

Aluminum-plastic composite tube has the following advantages during use:

(1) High barrier properties, aluminum foil has barrier properties, electrical resistance, water resistance and other blocking properties, preventing external substances from invading the interior of the cosmetic, preventing the oxidation and deterioration of the cosmetic, and preventing the moisture or essence in the cosmetic from diffusing to the outside through the tube, thereby Guarantee the quality of cosmetics.

(2) Low cost. To achieve the same blocking performance, aluminum-plastic composite tubes offer less material, lower cost, and less economy than all-plastic composite tubes and plastic co-extruded tubes.

2. All-plastic composite tube

All-plastic composite tubes are all plastic components, which are divided into all-element non-resistance compound tubes and all-element resistance compound tubes. Vegan non-blocking composite tubes are often used for low-cost quick cosmetic packaging. The all-blocking composite tube has edge seams on the removal tube, which is usually used for medium and low-level cosmetic packaging. The blocking layer can be a multi-layer composite material including EVOH, PVDC, oxide-coated PET, etc. Typical structure of plastic barrier composite tube PE/PE/EVOH/PE/PE.

The advantages of plastic composite tubes include:

(1) Environmental protection. Compared with the aluminum-plastic composite tube, the vegan composite tube uses economical and easy-to-recycle vegan plates, which reduces the environmental pollution caused by packaging waste. After reprocessing the recycled vegan composite tube, it can be produced lower product. High-end cosmetic tube.

(2) There are various colors. According to the characteristics of cosmetics and consumer demand, the all-plastic composite tube is made of colorless transparent, colored transparent, opaque and other colors, which can bring strong visual enjoyment to consumers. In particular, the transparent all-plastic composite tube can clearly see the color state of the contents, giving a strong visual impact and greatly promoting consumers' desire to buy.

(3) Good resilience: Compared with the aluminum-plastic composite tube, the all-plastic composite tube has good resilience. After extruding cosmetics, the tube quickly returns to its original shape and always maintains a beautiful and regular shape. . This is important for cosmetic packaging. The plastic co-extrusion tube adopts pneumatic technology. Xu Lu combines raw materials with different properties and types to form them at one time. Plastic total extrusion tubes are divided into single-layer extrusion tubes and multi-layer co-extrusion tubes, which are mainly used for packaging fast-consuming cosmetics (such as hand cream, etc.) that have high requirements on appearance and low practical performance requirements.

The main advantages of plastic co-extruded tubes include:

(1) There is no luffing, and the appearance is better than that of composite tubes. Required for advanced cosmetic tube packaging.

(2) According to the extrusion die, various shapes of extrusion tubes (such as oval, square, etc.) can be produced to meet the needs of different consumers.