Solvent-free laminating in the winding end surface uneven phenomenon
Uneven winding surface
The 6 major reasons for the uneven winding surface and improvement measures.
1、Causes
(1) The amount of glue applied is too large.
(2) Poor cooling effect of the film roll after coming out from the laminating roll.
(3) Tension is not appropriate.
(4) Poor leveling of the extrusion roller at the winding.
(5) The difference in the amount of glue applied to the left and right sides of the film is too large, and it is best to control the difference within 0.2g.
(6) The paper core is not aligned with the film.
2、Improvement measures
(1) Reduce the amount of glue
(2) Improve the cooling effect.
(3) Determine a reasonable control of tension.
(4) Ensure the flushness of the extrusion roller.
(5) Ensure the uniformity of gluing.
(6) Align the film with the paper core before winding.
Key words:
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