Application process and precautions of aluminum coated film adhesive
- 2020-03-20-

Aluminized film adhesive refers to the composite adhesive of polyester and coated paper. Generally, the non-aluminum-plated surface of pet is composed of coated paper. Generally, it is a waterborne acrylic polymer emulsion. Requires strong adhesion to pet. In order to change the performance of the operation, additives such as leveling agents and defoamers are usually added. ,

0010010 nbsp; 0010010 nbsp; 0010010 nbsp; Use process and precautions:

  1, clean the compound machine, pour the glue into the glue storage tank for recycling or add it directly into the glue tank. The temperature in the drying tunnel is 70-95 ℃, and the running speed is about 30 — 50 m / min.

  2. 、 The amount of glue 5 — 10 grams per square meter, the air humidity is 2 5 degrees 60%, the paper humidity is {{ 5}} — 20%; the amount of DL-BZX aluminum coating film glue is 7 grams per square meter.

  3. The remaining glue on both ends of the rubber roller is rolled for a long time, and after curing, it enters the glue tank, and the rubber roller is brought, which may cause the composite cardboard to have fine particles with irregular sizes. In order to reduce this phenomenon, circulating glue should be used, and the suction head of the circulating pump should be tied with a nylon filter cloth of about 200 mesh, so that the glue liquid can be used after filtering.

  4. When the booting time is long, if there are too many bubbles in the glue tank, it may cause a partial lack of glue in the rubber roller. You can use the factory to defoam with a defoamer or add it to mix and use.

  5. In wet weather, the humidity is too high, and the curing speed of the glue is slow. You can reduce the machine speed or increase the temperature of the drying tunnel to adjust it.

  6. If the four corners of composite cardboard are raised, it may be because the amount of glue applied is too high, resulting in too much shrinkage stress of the glue layer. Or because of the high moisture content of the cardboard itself, it should be properly controlled.

0010010 nbsp; 0010010 nbsp; 0010010 nbsp; 0010010 nbsp; I hope that through the above study of the use process and precautions of aluminized film adhesive, you can help .