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How to avoid the problem of air bubble in the Web paper composite machine

Date:2021-03-31
Info:
   Some Web paper composite machine substrate surface adhesion adhesive ability is poor, in order to

  

  Some Web paper composite machine substrate surface adhesion adhesive ability is poor, in order to improve this kind of substrate surface adhesion ability, ensure the coating quality, the substrate surface tension should reach 42-56mn / cm. Before coating, a set of corona processor can be added to carry out corona treatment on the surface of the substrate to make the surface hairy, so as to enhance the surface tension. In this way, the coating amount on the surface of the substrate can be increased to avoid bubbles.

Composite Machine

  Part of the surface of the substrate is not coated with adhesive, which will make it difficult for the two substrates to fit together when compounding, resulting in bubbles. We can choose the anilox roll with deeper mesh hole, or increase the adhesive amount on the surface of the substrate by increasing the pressure of the rubber roll and reducing the contact pressure between the scraper and the anilox roll.

  Should always keep the Web paper composite machine clean,The oil filter net should be cleaned once a month, and the hydraulic oil should be settled once a year. The oil level in the machine should be checked before work. When it is lower than the specified liquid level, the hydraulic oil of the same brand should be added and should not be mixed.


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Home / News / Industry News

How to avoid the problem of air bubble in the Web paper composite machine

  

  Some Web paper composite machine substrate surface adhesion adhesive ability is poor, in order to improve this kind of substrate surface adhesion ability, ensure the coating quality, the substrate surface tension should reach 42-56mn / cm. Before coating, a set of corona processor can be added to carry out corona treatment on the surface of the substrate to make the surface hairy, so as to enhance the surface tension. In this way, the coating amount on the surface of the substrate can be increased to avoid bubbles.

Composite Machine

  Part of the surface of the substrate is not coated with adhesive, which will make it difficult for the two substrates to fit together when compounding, resulting in bubbles. We can choose the anilox roll with deeper mesh hole, or increase the adhesive amount on the surface of the substrate by increasing the pressure of the rubber roll and reducing the contact pressure between the scraper and the anilox roll.

  Should always keep the Web paper composite machine clean,The oil filter net should be cleaned once a month, and the hydraulic oil should be settled once a year. The oil level in the machine should be checked before work. When it is lower than the specified liquid level, the hydraulic oil of the same brand should be added and should not be mixed.



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