News Article

Open house at Amut Dolci Bielloni

During the first week of December at Amut Dolci Bielloni plant took place an open house for the presentation of a double stage “Extrusion lamination” line

The line has a length of approx. 32 meters, and is designed for the production of various types of paper / cardboard webs, coated with Polythene and/or laminated with alufoil.

The line is controlled by a central console equipped with three video display (touch screen) and by a powerful line supervisor.

Dow Chemical is the technological sponsor of the open house who supplied various type of resins for the different  applications,  among  them  resins  of  new  generation  capable  to  generate  an adhesion grade (between paper and alufoil) difficult to achieve with conventional resins.

The line has a max net width of 1750 mm and can produce the following type of products:

  • Cardboard coated with polythene on one or on both sides, for production of disposable cups
  • Paper coated with polythene for food applications
  • Laminated paper /aluminium for food / pharmaceutical / industrial applications
  • Laminated paper /aluminium /net for industrial applications
  • Laminated aluminium /resin for yogurt lids

The line is equipped with automatic extrusion heads with variable width, extruders with automatic feeding  and  dosing  systems  for  the  resins,  automatic  turret  unwinders  and   rewinders  for  large diameter reels.

The line is equipped with corona and / or flame treating systems, alternatively used, according to the type and quality of paper/cardboard used: in particular, the flame treatment is applied when the chemical composition of the cardboard contains components that would develop, if corona treated, off tastes and off flavours non compatible with the use of hot liquids (disposable cups).

The total extrusion capacity of the line is 900 kg/hour and the production speed can range from 150 to 300 m/min.
Some  products are  obtained  by  extruding  Polythene  in  the  first  stage,  then  passing  the  web through turning bars and using the second stage for coating with polythene the other side of the web.

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