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Non woven Inspection

From baby diapers, to surgical gowns, from insulating roofing to reinforced flooring, from batteries to electrical circuits, from tea bags to oil filtering – the nonwoven industry is as varied in its end products as it is in its production processes. Yet the challenge of increasing production cost effectiveness while maintaining, or even improving, the quality of the end product, unites the industry.

EVS provides the Non woven web industry with Automatic Optical Inspection (AOI) systems suitable for quality inspection in any one of the different production processes. Increased accuracy, improved quality and decreased labor and costs are some of the advantages.

The Inspection Process

Today, Non woven webs, made of fibers of Viscose or Cellulose, are manufactured in either one of the following process types:

  • Spunlace
  • Spunbond
  • SMS
  • Stitchbond
  • Thermo bond
  • Meltblown
  • Air laid
  • Needle punch

 

General Inspection Process Inspection results example
Non woven inspection Non woven inspection

 

EVS automatic optical inspection systems can perform visual quality inspection and monitoring in any one of these processes. Our systems are installed at the end part of the process, where they perform optical quality inspection of the end product.

Main Detectable Defects:

  • Oil stain
  • Contamination
  • Foreign particle
  • Dirt spots
  • Holes
  • Knot
  • Eye brow
  • Strip
  • Several closed spots
  • Width shrinkage
  • Uniformity

System Benefits:

  • Improved quality of final product
  • Reduced labor costs
  • Reduced running time and less repetitive defects
  • Collecting defects data
  • Central control on the line operation
  • Increased automation of plant

System Highlights:

  • Modular, compact, cost-effective
  • Centralized control over multiple inspection points
  • Inspection of images is performed inside smart cameras; central computer receives only inspection results
  • No special knowledge of image processing is required for system operation or maintenance
  • Operating System is based on Windows XP, with customized application programs
  • Fast Ethernet communication
  • Each camera is equipped with a Local Control Unit, capable of transmitting and receiving standard signals to or from external electronic devices