PSA Calculator for Conversions and Calculations in the Pressure Sensitive Adhesive Market

Dow Chemical released a new free downloadable application at PSTC that helps with conversions and calculations in the PSA market.  lbs/ream to gsm, mils to microns, area conversions and lots more.  Please contact us to discuss your PSA application today at 508.473-9901.

Click Here to Download the Free Dow Application

PSA Calculator

PSA Calculator Free Application Courtesy of Dow

Coating PSA

PSA Tape Laminator

Moisture Gauge Improves Wood Panel Board Production

MCT360 WP measures moisture and resin in wood panel board products

MCT360 WP Moisture Gauge Can Measure Moisture and Resin in Wood Board Products

Oriented strand board (OSB) is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin. The moisture gauge alerts if moisture is too high which can lead to a board blow.  Similarly, the moisture gauge alerts if moisture is too low which can result in fires.  The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. The mat is made in a forming line. Wood strips on the external layers are aligned to the panel’s strength axis, while internal layers are perpendicular.

The number of layers placed is determined partly by the thickness of the panel but is limited by the equipment installed at the manufacturing site. Individual layers can also vary in thickness to give different finished panel thicknesses (typically, a 15 cm layer will produce a 15 mm panel thickness). The mat is placed in a thermal press to compress the flakes and bond them by heat activation and curing of the resin that has been coated on the flakes. Individual panels are then cut from the mats into finished sizes. The largest production facilities can make over a million square feet of OSB per day.  A moisture gauge is used in virtually every unit operation of production.


Click Here to View our MCT360 WP Moisture Gauge Brochure

Wood Panel Production Benefits from Moisture Gauge

Wood Panel Production Flow Chart

Moisture Analyzer Important Component in Cigarette Tobacco Manufacturing Process

Tobacco drying is the most important part of the manufacturing process and installing a Near Infrared (NIR) moisture analyzer at the dryer exit is a nearly universal part of process optimization.  Tobacco density and volume, inlet moisture content and temperature all contribute to the particle size, flavor, burn factor and overall quality.

Often times if the tobacco input varies significantly, a moisture analyzer will be installed prior to the dryer as well as at the dryer exit to allow feed forward control.  The moisture analyzer is used in the primary and threshing process, conditioning and packing process.  Please contact us to discuss your moisture analyzer project at 508.473-9901.

Please Click Here to View Our MCT360 T Tobacco Moisture Analyzer

Tobacco moisture analyzer at dryer exit.

MCT360 T Tobacco Moisture Analyzer


Moisture Sensor Helps Keep Cereal Fresh on the Shelf

Breakfast cereal is a staple for millions of us every day.  The flavorful crunch when you chew cereal is dependent upon moisture in the grains when processed, and in the final cereal when packaged.  Installation of a moisture sensor on the processed grain and the final product cereal prior to packaging greatly improves Quality Control.  The most important raw material in any breakfast cereal is grain. The grains most commonly used are corn, wheat, oats, rice, and barley. Some hot cereals, such as plain oatmeal, and a few cold cereals, such as plain shredded wheat, contain no other ingredients. Most breakfast cereals contain other ingredients, such as salt, yeast, sweeteners, flavoring agents, coloring agents, vitamins, minerals, and preservatives.

The sweeteners used in breakfast cereals include malt (obtained from barley), white sugar, brown sugar, and corn syrup. Some natural cereals are sweetened with concentrated fruit juice. A wide variety of flavors may be added to breakfast cereals, including chocolate, cinnamon and other spices, and fruit flavors. Other ingredients added to improve flavor include nuts, dried fruit, and marshmallows.

Vitamins and minerals are often added to breakfast cereals to replace those lost during cooking. The most important of these is vitamin B-i, 90 % of which is destroyed by heat. The antioxidants BHA and BHT are the preservatives most often added to breakfast cereals to prevent them from becoming stale and rancid.

A moisture sensor provides a large digital display of content for the operator, analog outputs for control, and a digital link for data archiving.  The MCT330 HD  and the MCT360 are the most common moisture sensor operated in cereal production.


MCT330 HD Moisture Sensors Aids Cereal Production

Cereal Production Benefits From Moisture Sensor

Moisture Gauges Provide Digital Display, Analog Outputs and Digital Interface

Moisture gauges provide immediate moisture measurement in a wide variety of Near Infrared (NIR) applications including food, paper, chemical, tobacco, mining and other applications.  Process Sensors Website features many of these applications for your review.  The MCT360 Moisture Gauges are operated throughout the world for moisture measurement and control.  The MCT330 SF moisture gauges   are designed for high temperature and wash down environments.


Moisture gauges supply proportional analog outputs including 4-20 mA and 0-10V.  It also features a digital output for data archiving and communication.  Please contact Process Sensors today to discuss your application at 508.473-9901.


Potato Stix moisture and oil measurements

Moisture Gauge Displays Moisture and Oil Measurements in Potato Stix


MCT330 SF measures moisture and oil content

MCT330 SF Moisture Gauge Measures Moisture and Oil Content


NIR Moisture Analyzers Provide Immediate Measurement On-Line, At-Line, and In-Line

The classic laboratory method of measuring moisture in solid or semi-solid materials is loss on drying (LOD). In this technique a sample of material is weighed, heated in an oven for an appropriate period, cooled in the dry atmosphere of a desiccator, and then reweighed. If the volatile content of the solid is primarily water, the LOD technique gives a good measure of moisture content. Karl Fisher and other methods may also be used for more complicated sample matrices.  While these methods are accurate, they can be tedious and slow when operating a process line.

Process Sensors offers the MCT360 NIR moisture analyzers for process applications and the MCT660 Bench Top for at-line and laboratory applications.  Please contact us today to discuss Near Infrared moisture analyzers at 508.473-9901.



Process Moisture Sensors Reduce Energy Costs and Increase Productivity at Dryer Exit

Moisture sensors can be employed in feedback or feed forward control schemes to optimize dryer operation.  Process Sensors offers both the MCT360 Near Infrared (NIR) transmitter and the RFM-1000 Radio Frequency transmitter to meet your needs.

Feedback control is generally employed when the dryer inlet incoming raw material moisture is relatively uniform.  Feed forward control is employed when the inlet material has a wide variance in moisture due to either the product nature or batch variances.   Moisture Sensors improve dryer operation.

Please contact Process Sensors to discuss your application at 508.473-9901.


Moisture control at dryer exit

Feed Back Moisture Control



Controlling dryer exit moisture with feed forward control

Feed Forward Moisture Control at Dryer Exit



PSTC (Pressure Sensitive Tape Council) Tape Summit 2013 May 13-17 New Orleans

PSTC’s Tape Summit 2013 gives professionals unprecedented opportunities to build their pressure sensitive adhesive (PSA) tape knowledge. This industry-focused event provides segmented and flexible learning options to help you formulate the most effective educational experience possible.

Tape Summit 2013

May 13-17

Sheraton New Orleans Hotel
New Orleans, LA
Click here for hotel information.

Process Sensors will be presenting a paper on Controlling Steam Re-moisturizers to Reduce Edge Curl on Thursday, May 16th at 11 a.m. We will also present our NIR transmitter and Guardian Cross Direction Web Profile System at Booth #46 during the exhibit portion of the Tape Summit.  Please come visit us!

PSTC Tape Summit New Orleans

Hot Melt Measurement with Near Infrared (NIR) Transmitter

Hot Melt Cross Direction Web Profile

Hot Melt Measurement Transmitter

Hot Melt Measurements are typically measured with Near Infrared (NIR) transmitters that provide a digital display in engineering units, analog outputs and a digital interface.  The NIR non-contacting Hot Melt measurement is extremely accurate and stable with no regulatory requirements.  The measurement can be fixed point or scan across the web to provide a cross direction web profile.

Click Here for MCT360 Fixed Point Hot Melt Transmitter

Click Here for Guardian Cross Direction Web Profile System Brochure

Paraffin Wax is largely accepted as the first hot melt coating application. Polymer and copolymer resins brought a host of formulations for improved performance properties that continue to expand the horizons of Hot Melt applications. Typical Hot Melt chemistry is designed to provide strength and flexibility, tackiness for bonding and speed of set in relatively even proportions.

Polymer strength and flexibility, bonding tackiness, set speed for hot melts.

Hot Melt Composition Contributions

Roll Coaters, Die Coaters, extruders, and doctor blade configurations are among the methods of applying hot melt adhesive. Roll coaters offer more flexibility than die application methods as they change over more quickly and allow for stripe coating. Die Coaters offer more precision across the web, especially in the 15 to 20 GSM. Hot melt applications of 100 GSM are very common and therange can go from 0-400 GSM.

Melt coating dies vary from 100mm to 3m, depending on the application. The greater the number of dies, the greater the control across the substrate web to achieve set point. When dies malfunction or get contaminated, they need to be detected, maintained or replaced.

The Guardian CD Web Profile System provides a Cross Direction web profile on a 19” flat panel LCD in an economical and attractive enclosure. The Guardian is fully automated with recipes for web width, scan speed, zone average, and data logging digital outputs. This is a complete system to provide the highest value performance to cost ratio. The system can supply CD Web Profiles and MD Trends for hot melt thickness, moisture and temperature. Multiple measurements can be mounted on a single screen.

Thickness, moisture and temperature profiles

Multiple Profiles on Single Display


Wood Board Moisture Measurement Critical to Board Quality

MCT360-WP Measures Wood Moisture

Wood Product Moisture Transmitter

Wood board moisture is critical in the press and manufacture of wood board products.  Waste wood is dried and resin added prior to the press to insure quality board.  If the wood is over dried potential fires can result.  If the wood is under dried, boards can blow up in the press section interrupting production.

NIR transmitters work in the Near Infrared (NIR) region (1200 – 2400 nm), selecting narrow band pass filters that allow specific wavelengths to be utilized for the measurement. The NIR is above the UV (sunburn) and Visible (what you see) colors of light, and below the IR (temperature) region of light.

Moisture absorbs light at 1420 and 1940 nm and one or both of these wavelengths are used as the “Measure Wavelength”. The more water present in the material, the less light reflected back at the water wavelength.   Similarly, resin is measured at 1760 or 2340 nm.  One or two non-absorbing wavelengths are chosen as “Reference Wavelengths”.

An algorithm (math equation) compares the values and provides an accurate and linear measurement of moisture. The Spectra below show relative absorbance for different parameters . Wood board moisture measurement is critical to board quality.

Moisture and Resin Spectra in Wood

Wood Moisture and Resin Spectra