In addition to the objective factors, it is also affected by subjective factors such as temperature, pressure, speed, and glue amount. If these factors are not handled well, various laminating quality problems will occur.

There are snowflakes on the product

1.The amount of glue is too small: the amount of glue is too small, and snow spots will appear on the entire surface of the print. The amount of glue can be appropriately increased.

2.Inappropriate pressure: too much pressure on the pressure wheel will squeeze out the adhesive on the edge of the print, resulting in snowflake spots on the edge of the print; Snowflake spots can also appear if it is not compacted. The pressure can be adjusted appropriately.

3.Print powder spraying too much: print powder spraying too much, the compound appears loose pine flower white fog, encounter this situation, should be appropriate to increase the amount of glue, or in the coating before sweeping the print powder.

The product has bubbles.

1.The printing ink layer is not dry: first hot press again and then glue, you can also postpone the coating date, so that it is dry.

2.The printing ink layer is too thick: the amount of adhesive coating can be appropriately increased, and the pressure and composite temperature can be increased

3.Film drying temperature is too high: the drying temperature is too high, will cause the adhesive surface crust and foaming failure, which should be appropriate to reduce the drying temperature.

4.Pressure wheel pressure is too small: there are bubbles on the surface of the entire printing product because the pressure of the pressure wheel is too small, and the pressure of the pressure wheel can be appropriately increased.

The coated product has wrinkles

The main reasons for the wrinkling of the coated product are the imbalance of the film transmission spoke, the inconsistency of the tightness at both ends of the film or the wavy edge, the thickness of the rubber layer, or the uneven electric wheel and the rubber spoke at both ends, the pressure is inconsistent, and the linear speed is different. Measures can be taken to adjust the transfer wheel to the equilibrium state, increase the film, adjust the amount of glue and increase the temperature of the drying channel, adjust the position and process parameters of the electric heating wheel and rubber wheel, etc.