Adhesive Tape Bopp Coating Machine

Adhesive Tape Bopp 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. 

Adhesive Tape Bopp Coating Machine

Second, the length of the coating section changes, the spacing is unstable:
  1. The length of the segment changes greatly (* is shortened) * The variation of the pitch is small (narrowed)
  2) The gap between the back roller and the rubber roller is too small and too tight.
  3) The tension before and after the mismatch, the unwinding is greater than the winding solution
  1) Cleaning roller
  2) Adjust the diagonal block to a fixed position
  3) Adjust with reference to setting parameters
2. The length of the segment changes greatly (* becomes shorter). The pitch changes greatly (larger).
If the length of the head of the pole piece and the head of the next piece are changed greatly (smaller), the tail change between the two pieces of the pole piece is small, so that the solenoid valve (control roller movement) is inflexible.
3. The length of the segment changes greatly (* becomes longer) * The pitch changes greatly (widening)
1) The surface of the back roller and the rear rubber roller are not clean.
2) There is no pinch roller, there may be no pinch or out of control
3) The tension before and after does not match, the winding is larger than the unwinding solution
1) Cleaning roller
2) Increase the pinch roller
3) Adjust with reference to the setting parameters. 1) The surface of the back roller and the rear rubber roller are not clean.

Adhesive Tape Bopp Coating Machine

PET film--

 

(3) PET reflective film
PET reflective film is characterized by excellent optical properties, smooth surface, smooth surface, good thermal stability, low shrinkage and light aging resistance.
Reflective materials used in transportation facilities include lens-type retroreflective film and flat-top reflective film. They are all made of aluminized PET film as a reflective layer. After applying pressure sensitive adhesive, some glasses with a refractive index of 1.9 are used. The beads are adhered to the PET aluminized film, and then a layer of butyral surface protective layer is sprayed.
PET reflective film is applied to billboards with reflective requirements, traffic reflective signs (reflective road signs, reflective barriers, reflective number plates), reflective police uniforms, industrial safety signs, etc.

(4) Chemical coating film
Polyester film In order to improve the surface properties of the PET film, in order to improve the adaptability of printing and the bonding force of the vacuum aluminum plating layer, a corona treatment method is generally used to increase the surface tension of the film. However, the corona method has problems such as aging, and particularly in a high-temperature, high-humidity environment, the film tension after corona treatment is easily attenuated. However, the chemical coating method does not have such a problem, so it is favored by the printing industry and the aluminum plating industry. Jiangsu Zhongda has developed a series of PET chemical coating products: coating with water-soluble polymer can improve the surface tension of PET film; coating with acrylate emulsion can improve printing adaptability (water-soluble ink can be used) The coating with polyurethane aqueous solution can strengthen the bonding force between the aluminum plating layer and the PET base film, and can increase the thickness of the aluminum plating layer.
In addition, a high-resistance film, an antistatic film, and the like can be obtained by a coating method.

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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