News

X-Labels equipped with the industries most advanced inspection technology with Erhardt+Leimer

In the interest of continuous quality improvement the company X-Labels (Germany) has decided to equip all the group’s printing presses with Erhardt + Leimer inspection technology. The system from the NYSCAN range of products guaranties X-Labels 100% inspection of “all” of their print production over the entire run time and web width. Dependent on the inspection parameters of the high resolution camera’s, all faults found are permanently documented in a roll protocol. These roll protocols are subsequently used in the NYSCAN Work-Flow to position the detected faults on the splice table of the downstream slitter-rewinders of the finishing department.
The operator is therefore released from the tedious and difficult task of visually inspecting printed material.
The core of the X-Label workflow solution is automatic roll identification via an existing BDE Barcode, in conjunction with the archiving of all the roll reports of all the presses on a central server, with direct linked connection to the quality control department. This level of integration is a first in the industry, and the QC department is therefore in full control of the acceptance/rejection of any faults, Quality Control uses the powerful NYSCAN Roll:Scheduler software to edit each roll on single and repeat faults.
In order to load the correct roll protocol a BDE barcode and hand scanners are used. After editing the roll protocol the modified file is again stored on the central server by QC, ready to be accessed again by a bar code scanner which placed placed at each and every slitter-rewinder.
The defect stop positions which have been refined by QC are then automatically and accurately positioned thus single faults can be corrected and larger faults will be removed.
This conclusive and logical workflow-solution has been successfully installed at X-Label and will now be rolled out across all the existing presses and slitter rewinders accross their two sites. X-Label proves again its leading edge position in productivity, innovation and quality control.
Erhardt + Leimer was chosen as the partner for this major investment as they not only design competitive and highly functional inspection systems, but also transform ideas and visions into functioning and reliable systems. Their flexibility and innovation formed the basis for the successful realization of the industries most advanced 100% print inspection concept at X-Label.

NYSCAN Web:Inspector for 100% Web Inspection

Peace of mind with total quality control and significant waste reduction.
Up to 3 cameras provide excellent image quality.High resolution gray cameras or high performance 3 chip color cameras are used.
The new TubeLight is fully integrated, providing the ideal illumination for difficult webs such as embossed metalized surfaces.
The system can cover a wide speed range,
depending on the pixel resolution used.
The 100% inspection will find defects such as broken or missing characters, misregistration, color deviations, splashes,
etc.
All defects are stored in a data base and can be analysed after the production run.
The Web:Inspector is a member of the NYSCAN workflow that further integrates PDF validation, Roll Reporting (single or multiple stations), and rewinder control for automatic placement.

NYSCAN TubeLight the ideally diffuse illumination

TubeLight is a new innovative light source that solves most difficult print and web challanges.
What ever needs to be inspected
HOT /COLD FOILING, EMBOSSING, TACTILE SCREEN PRINT, SPOT / PATCH VARNISHING, METALISED SUBSTRATES,
HOLOGRAPHIC IMAGES… the NYSCAN 100% inspection system is now specified with the
TubeLight light source as a standard feature,
totally eliminating the spurious reflections
that plague other systems when trying to inspect these types of print and web.

100 % Print Inspection gets larger

Erhardt+Leimer will present a new multi-camera system for 100% Print Inspection at DRUPA 2008. The high resolution, fast line cameras allow for speeds of over 200 m/min. at highest resolution level.

12.000 to 18.000 active pixels are available for web widths of 1000 mm and beyond. This high resolution meets the high demands of quality assurance in packaging, forms and foil printing.
The ideally-suited diffuse light of the new lighting system TubeLight ensures perfect monitoring results even with strongly reflective surfaces and detects even embossed structures of metal foils.

The inspection system is shown on the stand of various machine manufacturers and on the Erhardt+Leimer stand in hall 16 where it is running on a 660 mm inspection rewinder.


For further information e-mail s.krebs@erhardt-leimer.com

Dr. Stephan Krebs
Manager Sales Division Print Inspection
ErhardtLeimer GmbH
Postfach 10 15 40
D - 86136 Augsburg
Phone: ++49 (0)821 2435-608
Fax: ++49 (0)821 2435-100

100% Print Inspection with Length Monitoring

Erhardt+Leimer will present new, innovative software functions for their time-tested Print Inspection System NYSCAN at DRUPA 2008. For the first time it is now possible to monitor spaces. This new feature requires very little effort on the part of the operator; the target values for the spaces are simply entered via a graphic interface. It is further possible to monitor a multiple of these spaces as repeat length. Any direction of measurement can be defined, down web, cross web or a used-specified diagonal to the web. A patented calibration system from Erhardt+Leimer compensates inaccuracies due to distortions by the camera lens.

The inspection system is shown on the stand of various machine manufacturers and on the Erhardt+Leimer stand in hall 16 where it is running on a 660 mm inspection rewinder.


For further information e-mail s.krebs@erhardt-leimer.com

Dr. Stephan Krebs
Manager Sales Division Print Inspection
ErhardtLeimer GmbH
Postfach 10 15 40
D - 86136 Augsburg
Phone: ++49 (0)821 2435-608
Fax: ++49 (0)821 2435-100

Chapter 1: An introduction into “100% print inspection” and the technological status quo.

Automatic print inspection has become more and more sophisticated over the years. Originally, print inspection could only be used with a very limited number of applications and in most cases they had a negative influence on productivity. Software engineers tried over time their luck with complicated control algorithms. By now, the market has entered a consolidation phase. Specialized individual solutions have given way to system solutions, which meet the many different requirements of the label printers. The first chapter of this article describes the actual technological state. Its focus is on promoting the understanding of the technological limits set by the camera and lighting components available today. The second chapter of this article will describe the practical use of print image inspection systems within the workflow.

High Fidelity Colour Print Inspection

10. 2006
Erhardt + Leimer introduced at LabelExpo 2006 in Chicago a new print inspection system based on a 3-Chip color line scan camera.

100% Print Inspection – chances and limits

Web viewing systems are standard today on almost all printing presses. They also play an important role during make-ready for sporadic controls of critical parts...