Skip to content
English
Search
CONTACT US

Extruder

This process is used to coat or laminate paper, with the aim of providing protection against moisture or grease, forming a barrier for dry, fresh packaging, or introducing a shiny surface for greater sales appeal.

Resin is extruded from a slot die at high temperature (up to 320oC) directly onto the moving paper web. Next it is rolled to apply pressure, and then cooled to return the molten resin to a solid state, which should leave the paper with the desired surface finish.

The flow and temperature of the plastic melt can adversely affect the surface finish of the final product. An automated monitoring system will inspect the continuous process to detect any unacceptable blemishes, ensuring a complete coverage of the paper, at a sufficiently high quality.

  • Related Products +

    • AMETEK Surface Vision - Smart Advisor® - Process Inspection
      SmartAdvisor® - Process Inspection

      Strategically placed, synchronized, high-speed cameras positioned at every stage of the process, allow process upsets to be accurately tracked to their source within 1/24th of a second accuracy.

      Keep Reading

    • AMETEK Surface Vision - Smart Advisor® - Process Monitoring
      SmartAdvisor® - Process Monitoring

      A convenient, single-screen display allows users to review process issues by synchronizing images from multiple cameras. This reduces analysis time, detecting the root cause of process problems more quickly.

      Keep Reading