6-LAYER CO-EXTRUSION BLOW MOLDING MACHINE WITH DOUBLE DIE HEADS

6-LAYER CO-EXTRUSION BLOW MOLDING MACHINE WITH DOUBLE DIE HEADS

Multilayer Co-Extrusion Blow Molding Advantage

1. It provide higher quality blow moulding products under the more broad width and linear velocity.
2. Fill low cost material. Can save high quality resin. Recycling use of raw materials. Save the material cost.
3. Improve the production efficiency.
4. The products under this technology is durable, more stable, the quality is higher.
5. Multilayer co-extrusion blow molding products usually have high chemical resistance (oxidation resistance, light aging resistance), harmful substance penetration resistance, odor migration resistance, compression resistance, impact resistance, smooth surface, heat resistance and surface scratch prevention.

Multilayer Co-Extrusion Blow Molding Application

Food and Beverage. Packaging of tomato sauce, rapeseed oil, jam and milk, orange juice, carbonated beverage, beer, etc. Multilayer co-extruded bottle products have three layers, five layers and six layers. There are more plastic bottles with six layers of general materials. Chemical Reagents This kind of products usually consist of three-layer combination, four-layer combination, five-layer combination, six-layer combination of 5-10L barrels, plastic bottles below 1L, etc.

EVOH stands for Ethylene-vinyl alcohol copolymer and is a flexible, crystal clear, glossy thermoplastic copolymer. This material has excellent flex-crack resistance, and exhibits a high resistance to hydrocarbons, oils and organic solvents. EVOH is known for having some of the best barrier resistance to gases such as oxygen, nitrogen, and carbon dioxide which makes it particularly suited for packaging food, drugs, cosmetics, and other perishable products. When compared to other common films, EVOH is considered to have superior barrier properties. However, when exposed to moisture, EVOH loses its good gas barrier properties. For this reason, EVOH is often used in a multilayer co-extruded film structure with materials such as HDPE, PP and PET, all of which have superior moisture barrier properties. Ethylene vinyl alcohol copolymer (EVOH) barriers comprise a family of extrudable plastic barrier materials with excellent barrier properties for oxygen and a variety of other gases and volatile products (flavor barrier). Based on its excellent gas barrier properties, EVOH barrier grades are also great for applications in food packaging and agricultural film sectors among others. EVOH copolymer also has excellent chemical and oil resistance that enables it to be used as the fuel barrier layer in low emission fuel tanks for automobiles and portable gas containers.

Tips:

Multilayer co-extrusion blow moulding technology is certainly advanced. But only when it is applied reasonably can its advantages be brought into full play. When we use this technology, we should ensure the stability of each performance. Operate it in standard steps. On the basis of the stable development of this technology, the application scope of the equipment should be widened as far as possible.