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Friday, May 24, 2013

Brightness & Color Measurement No Longer Available

What if you walked into your mill, lab or office today and found you could no longer get brightness and color data on your product? How many decisions each day related to process, pricing and marketing are related to brightness and color?

The truth is you can't run your paper mill, additive business, printing operation or converting facility without brightness and color data.

Think of your quality lab and control room as if they were a hospital room. There are many
devices connected to the one we love, and they each give us vital information on their health. Data on blood pressure, heart rate and oxygen level are read out directly and continuously. Reports are sent to nurses and doctors monitoring the progress. This is just like the critical quality and process data we receive on our mill operations.  How effective could we give treatment to patients without heart rate or blood pressure information? Likewise, how can we effectively manage our processes and quality without brightness and color data?

Since these devices are so important, why to companies continue to cut spending on calibration standards and preventative maintenance?  Treat these critical components of your operation with the respect they deserve: subscribe to calibration standards, continue regular preventative maintenance and update training on the history, function and application of these measures.

Brightness and color are the lifeblood of paper, treat them that way.

Sunday, May 19, 2013

Safety is Strong at Technidyne

Technidyne always takes safety seriously. Here are some examples:
  • Recently, over 2/3 of our employees voluntarily received in-house training from the Red Cross on CPR and AED (Automatic Electronic Defibrillator) usage.
  • A new AED is on order right now.
  • Our EMR rating for Worker's Comp. is one of the lowest in the industry.
  • In 2012, there were 8 members of the staff that received certification for First Aid Training.Technidyne has been a member of IS Networld since January 2012. 

Monday, May 13, 2013

Why a Barium Coated Sphere is BAD Technology

Barium sulfate has been used to coat spheres used for diffuse brightness measurement ever since the development of the Zeiss Elrepho in the early 1960's in Germany.  It was used because it was more stable than Magnesium Oxide (less yellowing) and had relatively constant high reflectance (approximately 95%) from 400 nm to over 1200 nm.

In the mid-1990's, many different companies started producing more advanced, high-white coatings.  Technidyne chose to start using Labsphere Spectraflect.  It has the nice, high reflectance of barium sulfate in the visible spectrum (98-96%) and beyond.  It is also far more stable over time.  Barium sulfate spheres even in a protected environment with constant temperature and humidity will yellow over time far faster.

Technidyne has not used barium sulfate to coat its spheres for close to 20 years for instruments like the Color Touch.  Datacolor and some other manufacturers still use this inferior coating for its spheres. This results in greater deterioration over time than modern sphere coatings. A degraded sphere will absorb more light, especially in the UV, violet and blue part of the spectrum.  This will make instruments either impossible to calibrate or require more frequent changing of light sources to provide enough UV to overcome the absorption caused by the sphere.  This can also make it more difficult to get inter-instrument agreement over a variety of devices of different vintages.  Finally, barium sulfate spheres are far more susceptible to moisture effects. This can be seen when measuring wet handsheets. The moisture will be absorbed into the coating and make a 'ring' around the aperture, therefore, effecting the spheres efficiency.

Technidyne makes sure you are using the best technology available. This makes your device, calibration and laboratory operate at its highest efficiency.

What technology should Technidyne employ in its products/services?

What technology do we currently use that you especially enjoy?

Sunday, May 5, 2013

New High OBA TAPPI Calibration Standard

The TAPPI Optical Properties Committee is in the process of seeking participants in a round robin test to determine the effectiveness of new high OBA (optical brightening agent) calibration verification standards. In recent years more and more OBA is used in paper production, however, there are no calibration standards for use with directional i.e. TAPPI optical geometry, to verify calibration at this level. 

The standards will have a TAPPI brightness near 96 and a fluorescent component of brightness of approximately 9 unitsThe statistics have to be run in order to add them to the Precision Statement of TAPPI Test Method T452.  This round robin is being conducted through the Standard Specific Interest Group (SSIG) of T452 of the Optical Properties Committee.

Technidyne will be conducting the round robin using a new format for the standards which may be easier to use.

If you have questions or want to participate, please contact me, .