1.Main engine & pump full-automatic tracking system and constant tension control system, no matter ensure the coating stability, improve the material compound roughness.
2.Double position for taking up roller and full automatic not reduce changing roller, greatly improve the equipment operation and produce efficiency.
Micro gravure coating advantages:
1. A very thin coating can be applied to very thin materials. Since there is no back pressure roller, there are no defects such as offset printing and wrinkles on the coated surface.
2. Since there is no back pressure roller, the edge of the film can be coated with glue without worrying that the glue is applied to the back pressure roller to affect the coating.
3. Due to the light contact of the doctor blade with the anilox roller, the scraper and the web roller are very worn.
4. The micro-concave roller has small diameter and light weight, and different coating amounts are applied, and it is convenient to replace the micro-concave roller. 5. Reverse coating can obtain relatively flat coating, and the coating amount is evenly distributed.
Miniature gravure coating disadvantages:
1. The micro gravure coated glue storage tank needs to remain full when the coating liquid is applied, and the micro concave roller is only in contact with the overflowed liquid phase, so that the glue in the plastic storage tank cannot be fully utilized, and It can't be recycled, so it causes a certain amount of waste, and the amount of glue waste is about 10KG.
2. If the micro-concave roller is not clean after use, it will easily cause the micro-concave roller to rust and it is difficult to remove rust.
3. Since the glue in the glue storage tank is exposed to the air during coating, dust and particles in the air are easily dropped into the glue storage tank during coating, which has a certain influence on the quality of the coating.
4. The micro gravure coating system is more complicated, and it is difficult to clean and disassemble. It often takes 1-2 hours.
Micro gravure coating application case:
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Light-shielding film, various optical films, materials for lithium batteries, various composite tapes, film films, and protective films. Comma roll coating:
The comma roll coating is characterized by a combination of a blade scraper and a roller scraper. The effect of the thickness of the glue is smaller than that of the blade, the thickness of the coating is easily adjusted, and the high viscosity glue can be applied. When the width is large, it can be adjusted horizontally.
1. The strength and hardness of the comma scraper are high, and the straightness error of the cutting edge is small. The pneumatic fine adjustment mechanism can be used to adjust and control the position of the scraper, and the coating amount control and scraping precision are high.
2. It can coat thicker coating. When coating, the glue flows from top to bottom between the blade mouth and the film. Therefore, the glue can be fully used, and there is basically no waste of glue.
1. The coating quality of the comma roller coating has a great relationship with the operation of each component unit, especially the transmission ratio between the driving motor and the rotating pressing roller is difficult to adjust, which often causes uneven coating and is prone to lateral or Longitudinal irregular stripes. When coating, the glue easily flows out in the gap between the baffle and the drive press roller, and the sealing property is not complete. When coating, it is necessary to manually stir the glue of the glue storage tank. To guarantee
Even distribution of the glue.
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