• Specialty
  • Specialty
  • 特性


 


Defect Catalog Extract

Hole

Appearance: Diverse in shape, very dark in the area, where the paper is punched. Can be quite large.

Bright Spot

Alternative terms: Thin Spot, Water drop

Appearance: Bright area with soft edge, sometimes with periodic occurrence.

 


Scratch

Alternative term: Butterfly

Appearance: Two bright areas with soft edges, symmetrically oriented in cross direction.

Splice

Appearance: Distinct line across the web.

 


Patch

Appearance: Round or rectangular piece of paper, often with low contrast.

Water Drop

Appearance: Dark and bright area, often lengthwise with a distinct drop-like shape, sometimes with periodic occurrence.

 


Oil Drop

Appearance: Dark area, often lengthwise with a distinct drop-like shape, sometimes with periodic occurrence.

Dirt

Appearance: Dark spot with variable shape and high contrast. Mostly not periodic. Statistically distributed.

 


Dark Spot

Alternative terms: Dirt, sludge

Appearance: Dark spot with variable, mostly lengthwise shape.

Debris

Alternative term: Scrap

Appearance: Dark spot with variable shape and mostly sharp edges. Sometimes blurred, if not in focus of the cameras or on the other side of the web. Can be quite large.

 


Edge Crack

Appearance: Crack, mostly perpendicular to the edge. Often appearing in clusters.

Wrinkle

Appearance: Dark with good contrast and sharp edges, up to three layers of paper, often running inwards from the paper edge. Appearance often in clusters.

 


Dark Streak

Appearance: Oriented in machine direction, not always sharp edges, length depending on coating device: up to several hundred meters at a blade coater, usually only a few meters at a sizer.

Bright Streak

Appearance: Scratch oriented in machine direction, length can be several hundred meters, usually good contrast.

 


Scratch

Appearance: Fine scratch oriented in machine direction, length can be several hundred meters, usually good contrast.

 

 


Contact


Pascalstraße 16
52076 Aachen
Germany
tel: +49 (2408) 92 700 - 0
fax: +49 (2408) 92 700 - 500
info@isravision.com 


Supported Applications

  • Coated but offline
  • Glassine
  • Cigarette
  • Decor / Laminating base paper
  • Filter

Customer Examples

  • Ahlstrom
  • APP
  • Arjo Wiggins
  • Brigl & Bergmeister
  • Dresden Spezialpapier
  • Gebrüder Hoffsümmer
  • Guandong
  • International Paper
  • Julius Glatz
  • Koehler
  • MD Papeis
  • Miquel y Costas
  • Neu Kaliss Spezialp.
  • Nogent Seine
  • Speciality Coatings
  • Steinbeis Temming
  • Stora Enso
  • Xinfeng Paper