Converters

Support – Converters

To solve most common technical issues click Troubleshooting.
For additional questions click Customer support form below.

Question 1: We have creases or wrinkles in the central drum zone.

Solution: Increase tension level during unwinding process (Recommended 1.5-2.5 N/cm).

Question 2: The ink does not adhere properly to the film.

Solutions:

  • Check the film’s surface tension. If it is below 38 Dyne/cm, use Corona treatment refresher.
  • If you are using a Corona treatment refresher adjust the Corona treatment refreshment power in relation to the machine speed.
  • Verify that you  are using an ink appropriate for polyethylene film.
  • For metallized film use primer.
  • Check the ratio of drying zone temperature in relation to machine speed.

Question 3: The ink in the drying zone is not dry enough.

Solutions:

  • Check the air velocity.
  • Check the ratio of drying zone temperature in relation to machine speed.

Question 4: The film surface is uneven after the drying zone.

Solution: This may be caused from overheating. Check the ratio of drying zone temperature in relation to machine speed.

Question 5: There are static electricity problems.

Solutions:

  • Check that the machine is grounded properly.
  • Eliminate static electricity by using anti-static devices.

Question 6: The film has wrinkles when it enters the printing zone.

Solution: Use a spreading reel before the central cylinder.

Question 7: The printed areas on the film are elevated, and may cause cutting problems.

Solution: Decrease tension level during rewinding process (Recommended 0.75-1.2 N/cm).

Subject*

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Company Name*

Function

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Type and model of printing machine:

Printing method:

Type of cutting machine (slitter):

Film width:

Film thickness:

Machine speed:

Film type:

Film description:

Tension on unwinding:

Tension on rewinding:

Power of corona treatment:

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