Hotline: 0988.816.815 
Mô tả chi tiết
-
The furrows and recesses of papers are called scars.
The scarredness as cause for problems in painting, coating, printing, clogging and laminating has scarcely been investigated and noticed yet as well as its influence on the surface quality.
Scars occur at the production process in the paper machine inter alia as a print of the covers made by wires and felts. Possibly they are shaped decisively by the press of the felts in the press section.
Bigger pores and recesses in the felt result in material accumulation on pressing. Those protrude as pinnacles from the plane of the sheet after the separation from felt and paper surface. By contact with rollers, drying cylinders, calenders etc. under compulsion they are leveled and compacted.
Extreme scars are causes for missing dots and missing dye transfer in the offset.
Scarredness reduces the color transmission. On the decor print the relationship between scarredness and print quality has been proven doubtless.
Features
- Measuring surface 10 mm x 10 mm or 28 mm x 28 mm
- Optional vacuum plate to improve the flatness of the paper
Scarredness quantities
- Scarredness index NI
- Percenting surface
- Average scars size
- Number of scars
- Roughness index RI
Applications
- Investigation of the relationship between scarredness of the coating base paper and mottling of coated paper
- Investigation of the relationship between trapping, printability and print uniformity on the one hand and scarredness on the other hand
- Investigation of the relationship between toner absorption and toner bonding on the one hand and scarredness of photocopying papers on the other hand
- Investigation of the influence of the scarredness for processes such as coating, clogging, laminating and painting
- Quality control
Coated base paper
Base wall nonwoven
Wall nonwoven coated
Corrugated paper
Photocopy paper
Board coated
Technical data
Dimensions (HxBxT) 410 mm x 360 mm x 470 mm Weight 15 kg (24 kg) 17 kg (26 kg) Image size 28 mm x 28 mm 10 mm x 10 mm Resolution 465 dpi 1300 dpi Application example decor paper, uncoated board SC paper, newsprint paper Scope of supply device with camera and illumination unit, all packed in carrying case, calibration strip, certificate, frame grabber, software, PC-ware on inquiry Available accessory possibility of connection to compressed air for better adjustment of wavy samples (recommended for device with 10 mm image) Lĩnh vực ứng dụng
Phụ kiện tùy chọn
Video
Catalogue và HDSD
Download Catalogue
Download Hướng dẫn sử dụng
