Bopp Printed Carton Sealing Tape Printing Coating Machine

Bopp Printed Carton Sealing Tape Printing Coating Machine

1. Moveable blade device. 
2. Guiding roller in oven will synchronously rotates with main shaft. 
3. Solenoid operated valve controlling is adopted for Anilx roller and drawing roller. 
4. Automatic meter-measuring devices. 
5. Key mode air shaft is used for unwinding and rewinding shafts, easy to load and unload. 

Bopp Printed Carton Sealing Tape Printing 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.

Bopp Printed Carton Sealing Tape Printing Coating Machine

Note on the use of the coater:

2.3 Note:
1. Clean the surface of the roller and the coating tool with alcohol before starting the machine.
2. Start the “Scraper Lock” button before adjusting the blade gap. Coating should be carried out in strict accordance with the process requirements to meet the process requirements.

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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