Top 10 - technical application questions


Of course, manufacturing companies such as yourself want everything to run smoothly – and as quickly as possible too. Therefore, we understand how important it is for you to achieve the optimal clock speed. Here are our top tips:
 Check the sliding friction of the film.

  • Check that the vacuum chamber insertion plates are not missing.
  • Check the material.
Please contact us directly with any other technical application questions. You can rest assured that we will find the right solution together.

It can be very annoying when the composite film to be processed separates into its component parts. The big question is what is causing this to happen?

  • The adhesion is too low
  • The films were incorrectly laminated (wrong side)
  • The seal area has been printed on
  • The pre-treatment of the film is poor or lacking entirely
In any case, the film supplier should be contacted. You can also ask us, as finishing films is one of our core competences, along with flexo printing!

The two most common reasons for the sealed seam splitting include a low hot-tack (warm seal strength) and/or a package weight that is too heavy for the sealing seam.
Talk to us! We are happy to advise you on the right choice of materials, the strength and the correct settings on your packing machine.

There is a whole range of possible causes for this problem:

  • Temperature is set too high or too low
  • Sealing jaws or seal area are dirty
  • Seal valve is defective
  • Film thickness fluctuations
  • Wrong material
  • Sealing pressure too low
Have you tested everything but the problem still persists? Do you need any help performing these tests? Then get in touch with us – we are happy to help.

There is no single answer to this question. The causes can be manifold. A low or even non-existent peel effect could be because of the following:

  • Using the wrong inner film for the outer film
  • Sealing temperature is too low or too high
  • Incorrect peel / no peelable film
  • Sealing pressure is too low or too high
Is the problem still happening? Then give us a call and together we will find the solution.

Is your film tearing, even though it is not supposed to? Or is your film not tearing as desired? This could be because of the following:

  • It is a composite adhesion problem.
  • The packaging/film has been mechanically damaged.
  • The film is incorrectly oriented.
  • The die cutters or the cutting tools (thermoformer) are misaligned.
The problem can often be fixed quickly and easily. Ask us, if you don’t know what to do next!

One of the most important markings on food packaging is the best before date. This is conventionally printed directly onto a predetermined location during the packaging process using a thermal transfer printer or inkjet. It is therefore very important that the printing runs seamlessly; if not, the reason could be that:

  • The film to be printed is not pre-treated
  • The film is too dirty or too cold
  • The wrong thermal transfer ribbon is used
  • The wrong ink is used

Is the problem still happening? Then ask us and benefit from our technical advice.

This question is actually quite easy to answer: carry out a vacuum pressure test.
We will be happy to tell you more about the settings you need to apply to examine the packaging for all eventualities. Call us!

Simple: have you checked that your film provides UV protection? We offer you a full range of film properties. For more information, click here or contact us directly.