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Monday, November 26, 2012

Technidyne Services Emtec Equipment

Emtec & AFG are sister companies founded in Germany to develop paper testing technology.
  • Emtec - tissue softness, printability, glueability, coating color, dimensional stability, ball burst, deposit monitoring
  • AFG - particle charge and zeta potential measurement devices
Since 2009, Technidyne has been the exclusive sales and service agent for Emtec/AFG in the United States and Canada.  Technidyne can add your Emtec and/or AFG equipment to your normal Preventative Maintenance schedule.

Below is just an example of some of the products serviced by Technidyne in cooperation with Emtec/AFG. 

TSA Tissue Softness Analyzer
Multifunctional Measuring Instrument to assess the Softness, Elasticity and Compressibility of Tissue and Fabrics as well as the Ball Burst Strength, Thickness and Grammage
  • Measurement of the softness, elasticity and compressibility of tissue and fabrics as well as the ball burst strength, thickness and grammage
  • Assessment of the two-sidedness regarding softness of tissue paper
  • Area of Use:
    • production control
    • product optimization
    • comparison of products
    • R&D
    • selection/incoming control of pulp/fibers (hand sheet measurement
CAS Charge Analysing System  

cas.pngThe CAS particle charge measurement system takes traditional methods of measuring streaming potential and establishes a new era of technology and comfort in particle charge analysis.  Using industry accepted techniques of titration CAS determines cationic/anionic and acid/base demands of aqueous charge systems.  Both streaming potential (mV) and pH are measured simultaneously.  This makes it easy to determine isoelectric and flocculation points of a sample.  The integrated titrator also eliminates the need for hand titrations, saves time and increases accuracy. This is essential in busy labs and situations where the consumption rate is very low.

Thursday, November 22, 2012

Technidyne Services Techpap Equipment

Techpap is a commercial company founded by the French Research Center for Pulp & Paper (CTP) to market Laboratory equipments and on-line sensors
  • Techpap has now more than 20 years of experience producing & selling equipments around the world for the Pulp & Paper Quality monitoring and Process optimization
  • Techpap can rely on the expertise and leading research groups of those 2 Institutes : CTP & INPG-PAGORA located in Grenoble France
Since 2010, Technidyne has been the exclusive sales and service agent for Techpap in the United States and Canada.  Technidyne can add your Techpap equipment to your normal Preventative Maintenance schedule. Also, Technidyne has been factory-trained at Techpap in Grenoble, France to be able to perform service and provide parts directly in North America.

Below is just an example of some of the products serviced by Technidyne in cooperation with Techpap. 

The MorFi Compact (pulp morphology) is specifically designed for intensive laboratory use and provides a complete interface for the treated data display. This slimmed down version of the MorFi Lab unit offers identical optics & flow cell measurement characteristics to ensure a blockage free process control as well as measurement accuracy. MorFi is able to detect:
  - Fibers
  - Fines
  - Shives
  - Vessels 

The 2D Lab Formation Sensor is based on the 2D Online Formation Tester using the same optics, electronics and results algorithm.

A CCD camera takes look-through images of a sample backlit by a stroboscope. The intensity of the light is regulated by the computer to obtain a constant homogeneous tone as well as a constant grey level average of the image. By automatically controlling the light intensity, formation of sheets with varying basis weights, colors or opacities can be compared. 

The basis weight range is very large, from 5 g/m2, tissue, non woven, printing and writing, up to testliner, virgin board (even dyed) over 600 g/m2. The system can also be used for white paper over 1000 g/m2.

The Kheops (mottle) is a laboratory sensor designed to easily provide accurate and repeatable evaluations on

 - Quality of offset impressions, print mottle, and the quality of coating application.
 - Paper, Board or other flat material surface roughness.
 - White top board quality evaluation.

The Simpatic 2IP (on-line dirt) is the result of 15+ years of experience in deinking and pulp cleanliness research dedicated to the development of instruments to create solutions in this area. The Simpatic 2IP is the perfect tool for online dirt detection, is simple to install, easy to use and perfectly representative of the process contamination.

Monday, November 12, 2012

Preventative Maintenance Pays Off (Part 2)

Technidyne has offered Preventative Maintenance (PM) on its instruments since 1985.  This is similar to routine maintenance on your car to make sure it runs well and for years to come.  During a PM visit the instrument 'current' state is checked, the instrument has routine maintenance performed (cleaning, checking voltages, etc.). Finally, the instrument is calibrated and rechecked for its 'as left' data.  Also, during PM visits general maintenance questions can be asked and features can be demonstrated. 

A customer skipped their annual PM visit which made them a non active PM customer.  Six months later a primary instrument went down on Saturday morning with no backup instrument on-site.  Active PM Customers receive loaner equipment at no charge.  Since they were no longer an active PM customer they had to rent the loaner and pay a higher repair costs.  Also, PM customers get reduced rates on parts and labor for repairs.  By skipping this one visit ended up costing this customer an additional $4,500 for the loaner and repair.   

By skipping the normal PM, this customer paid for the repair and loaner.  The additional cost would have paid for PM on all of their instruments that year and could have prevented the failure which cost them even more time and money.

Tuesday, November 6, 2012

Why Measure ERIC at 950 nm and NOT 700 nm?

ERIC (Effective Residual Ink Concentration) at 950 nm was introduced through "Measuring the Concentration of Residual Ink in Recycled Newsprint" in the June 1994 edition of the Journal of Pulp and Paper Science.  The authors Jordan (Paprican) and Popson (Technidyne) point out that at 950 nm "the lignin and dye have a negligible contribution and the ink dominates the spectrum."  

It would have been easier, even for Jordan and Popson to use 700 nm or some other reflectance point in the visible spectrum (400-700 nm). However, they point out that in the 1000 nm range, "The absorption is almost entirely from the ink.  The absporption coefficient of the paper is only about 0.2 m2/kg and the absorption coefficient of the ink is ten to one hundred times that great" You can see this in Figure 10, below.  It is in this range that the measurement gives a clear picture and reliable information.

Also, they point out the added complication of different dyes in wastepaper. "We have measured many dyed papers and have not found interferences in the 950 to 1000 nm range with the exception of black art paper. For example, Fig. 14 shows the reflectance spectra of two coloured fine papers with strong absorption up to 700 nm, but with negligible absorption at 950 nm." (below)

There are many instruments and research papers attempting to use 700 nm as the measurement point for residual ink, however, there is no research that shows this as an acceptable replacement for the accurate measurement at 950 nm.  Keep in mind at 700 nm other constituents (bleach, dye, lignin) still contribute toward the absorption.  Inaccurate estimation of the absorption in the measurement of residual ink will lead to poor conclusions. This will not adequately characterized the bleaching, deinking and other processes and how to use them most efficiently. The best ROI will not be achieved if the measurement is not done correctly.

There are existing standards: ISO 22754, TAPPI T567 and PAPTAC E.8 which have been in existence for years. They all use the 950 nm measurements.