Laboratory Analysis Services

Laboratory Analysis Services for Paper, Board, Nonwovens, Films and other rolled products.

Ship your CD rolls or MD strips for measurement at the Tapio Laboratory.  

Tapio Measurement Technologies offers laboratory services. Measurement in precision laboratory analyzers at a slow track speed enables millimeter-level sample spacing and high accuracyThe results can be used for quality assessment, troubleshooting, headbox operation analysis, guarantee verification as well as the verification of online QCS systems. 

For the laboratory analysis, either 20+ CD strips (can be hand cut) or an MD roll on a standard 3″ core is needed.  The customer is provided with a detailed report on the findings, including profiles, statistics, spectra etc. as well as an online meeting with Tapio experts to discuss the findings.

Sample requirements

MD samples

Usually the machine direction (MD) sample rolls are obtained at the winder or re-winder, from close to the ends of a reel or from a cross direction location that is known to be causing the problems. 
• The MD sample roll can be up to 75 cm in diameter 
• The MD sample roll can be up to 25 cm wide (15 to 20 cm width recommended)
• It should be on a 3” standard core. 
• Thicker papers or boards can be mounted on 4” or 6” cores.

CD samples

For the cross direction (CD) at least 20 full width strips are needed to achieve a stable average CD profile. 
 •These samples can be hand cut across the reel. If a CD sample cutter is in use, up to 30 cm width is suitable.
• Make sure that each strip is wide enough to be cut into 20 cm strips in true perpendicular CD direction. Recommendation is to cut  ~40 cm wide strips when hand cutting.
• Always clearly note the drive (DS) and tending side (TS) on the samples, as well as top and bottom (wire and top) side. 
At Tapio laboratory, the strips are cut and taped into a “mini reel” on a standard 3” core for measurement, using the CutOff™ Sample Cutter specifically developed by Tapio for this purpose.

Tapio Analysis

Free and open source software for analysis of Tapio measurements

Tapio Analysis software

Tapio Analyzers measure the exact same point with all sensors. Studying the point correlation between channels can reveal multiple issues in the production line.

Separate and quantify CD and MD variations (Variance Component Analysis)

Comparison of true CD profile with QCS readings or any other provided CD data

Tapio Analyzers can pinpoint the source of variation

Tapio Analysis can be used to determine which machine elements are causing variations in the end product:
• Verification and calibration of QCS and other online measurement systems
• Stock approach, screens, fan pumps, etc.
• CD Basis Weight Actuators, Jet to Wire Ratio, Formation, Wire Uniformity & Marking
• Press vibration problems, Nip pressure uniformity, Felt condition
• CD profiles and connection to actuators
• Coaters, Size Presses
• IR Dryers
• CR Coat weight control
• Calendering uniformity
• Calender blackening
• Calender bearing vibration

Contact us ( to proceed with a Tapio Analysis, which we offer both as a laboratory service as well as sell analyzer systems and sensros. 


Accurate CD profile measured with millimeter resolution from true CD strips

Spectral analysis tools to determine and quantify which rolls or other machine elements are causing variations

Paper and Board Analyzer systems

Tapio Measurement Technologies offers paper machine analyzers and measurement equipment suitable for the precision measurement of almost all paper and board grades as well as other suitable rolled products.

We offer two types of analyzer devices: 
• Tapio Analyzer, a system for analysis of both CD and long MD samples
• Tapio Profiler, a smaller unit for analysis of CD samples and short MD samples

Both analyzers support the same sensors.

Available sensors

Basis Weight Sensor BW

Tapio basis weight sensor

• Various models: Pm-147 for paper grades, Kr-85 for all grades
• Semiconductor detectors
• Apertures starting form 1 mm diameter up to big slot designs
• All Grades, accurate basis weight measurement up to 10 000 samples/m
• Wet end, stock approach, coating problem solutions
• Guarantees (new machines, rebuilds, headboxes)
• Formation measuremnets, flock size analysis
• Verification and calibration of online measurements

Caliper Sensor

Tapio Caliper Sensor

 Small contact area of 0.3 mm
• Standard range up to 500 μm – special up to 800 μm
• For all grades
• Calender, press section problems
• Can be used for printability estimation
• Verification and calibration of online caliper measurements

Gloss Sensor

Tapio Gloss Sensor

• Dual-sided measurement of standard gloss & small scale gloss variation
• Aperture 4×4 mm or 1×1.6 mm
• Standard angle 75° (can be modified upon request) 
• All grades, even base paper
• Calenders, soft/hard/SC
• Press section, rolls, felts
• Coating, backing roll effect verification and identification, size press effects and other
• Small scale gloss variation before and after printing (i.e. gloss mottling studies)
• Verification and calibration of online measurements
• Ideal for paper machine troubleshooting

Ash Sensor

Tapio Ash Sensor

 Fe55 source with seminconductor detector
• 2 selectable apertures, 5 mm and 10 mm
• Coated, filled grades
• Filler content measurement
• Retention problems
• Coat weight, coating weight variation, coater optimization etc.


Tapio Transmission sensor

• 1 mm aperture
• All grades, wavelength selectable white / red / IR
• Press section variations, moisture and temperature related variations 
• Optical formation and flock size analysis
• Importand when calender, press section and wet end effects must be separated from each other

Remission / Brightness

Tapio Remission sensor

 0.3 mm aperture
• Brightness variation of paper
• All grades
• Correlates with coating variations
• Calender blackening studies
• White top board (see-through variation)


Tapio Moisture Sensor

• Near-infrared reflection
• 3 – 20 % moisture content
• Spot diameter 13 mm


Tapio Porosity Sensor

 Air permeability measurement
• Permeability variations
• According to laboratory standards (Bendtsen, Gurley, Bekk, etc.)

Tapio PMA  & TS Profiler

Paper Machine Analyzers

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Tapio PMA & TS Profiler

Paper Machine Analyzers