Automatic Paper Machine Coating Machine

Automatic Paper Machine Coating Machine

It's be mainly used for bopp film gelatinizing producing,The tape is mainly used to seal the box, seal the cover and bind the articles, and can also be used as office supplies.

Automatic Paper Machine Coating Machine

BOPA film ---

 

BOPA film manufacturing method
According to the different gravure printing methods of the production process, the manufacturing method of BOPA film can be divided into flat film method and tube film method, and the flat film method is mainly introduced here. At present, the production methods of flat film BOPA film are divided into two categories: two-step method and synchronous method. The synchronous biaxial stretching process is as follows: raw material drying→melt extrusion→cooling slab→casting thickness measurement→simultaneous biaxial stretching→heat setting→film thickness measurement→traction, trimming→winding→cutting→packaging Library. The two-step biaxial stretching process first performs longitudinal stretching and then transverse stretching, and the other processes are basically the same as the simultaneous biaxial stretching process. The two-step biaxial stretching technique has one of the biggest drawbacks: the bowing effect is large. This effect can result in a significant portion of the BOPA film product being produced that does not meet the very stringent requirements of the end user, such as high quality printed packaging. The synchronous biaxial stretching process can effectively improve the bowing effect problem, and the produced BOPA film has the characteristics of good quality balance and has a good market prospect.
The method of testing the bowing effect in the laboratory: determining the thermal shrinkage rate of the diagonal line, the smaller the difference between the two, the better the balance of the product; the difference is less than 1.5%, and the warp angle is not generated when the bag is formed.

Automatic Paper Machine Coating Machine

Aluminized film (VMPET, VMCPP)--

 

Characteristics
(1) The amount of aluminum used is greatly reduced, energy and materials are saved, and the cost is reduced. The thickness of the composite aluminum foil is 7 to gpm, and the thickness of the aluminum layer of the aluminized film is about 0.05 n, and the aluminum consumption is about Aluminum foil is 1/140 to 1/180, and the production speed can be as high as 450m/min.
(2) It has excellent folding resistance and good toughness, pinholes and cracks are rare, and there is no cracking and cracking, so the barrier property against gas, water vapor, odor, light, etc. is improved.
(3) It has excellent metallic luster, and the light reflectance can reach 97%; and it can be processed by coating to form a color film, and its decorative effect is beyond the reach of aluminum foil.
(4) Partial aluminizing can be performed by shielding to obtain any pattern or transparent window, and the contents can be seen.
(5) The aluminum plating layer has good electrical conductivity and can eliminate the electrostatic effect; its sealing performance is good, especially when packaging the powdery product, it will not pollute the sealing part, and the sealing performance of the packaging is ensured. (6) It has good adaptability to post-processing such as printing and compounding.
Due to the above characteristics, the aluminized film has become a new type of composite film with excellent performance and economical appearance, and has replaced the aluminum foil composite material in many aspects. It is mainly used for vacuum packaging of flavor foods and agricultural products, as well as packaging of medicines, cosmetics and cigarettes. In addition, aluminized films are also widely used as bronzing materials and trademark label materials in printing.

 

 

About

Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc

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