R.a Emerson & Company Dusting And Surface Contamination Gauge

US $130

East Sandwich, Massachusetts, United States
Jun 21st

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PAPER DUST/SURFACE CONTAMINATION GAUGE An Exciting New Instrument for Evaluating Surface Debris on Paper The Dusting/Surface Contamination Gauge is a new quality control tool for paper manufacturers, web press printers, paper coaters and paper mill suppliers. The Gauge allows non-destructive, fast, repeatable and consistent tests for surface contamination or dust caused by loose fiber filler, surface treatment or coating from the paper making process. The Gauge eliminates the pressure variable associated with the common “black rag” method. Each gauge is carefully calibrated to 5.0 lbs. of pressure, so that regardless of who executes the test, the results will be identical for a specific roll of paper. The Gauge provides a retainable impression of the tendency of the paper to cause print quality or coating quality problems such as whitening, milking, fish-eyes, print-blanket-contamination and coating contamination. The retained sample can be visually compared with standards developed by the mill or press for a specific grade of paper, or if used for “before-and-after” machine trials the sample is compared with the control sample. Simple, Fast and Repeatable Tests are run by placing a swatch of standardized black felt, onto the surface of the up-to-speed paper surface. After noting the start time, place the gauge-test-cup directly onto the swatch. Press down and hold at the red line of the spring loaded central shaft of the gauge for the specified test duration. Test duration is based on machine speed and typically runs between 15 seconds and two minutes. Complete instructions for performing the test and determining test duration are supplied with the gauge. Tests can be run at any safe location where the web is fully backed-up or supported. At the paper machine, the test location would typically be the wind-up. At the web-press or off-machine-coater, the location could be either the unwind or wind-up. Roll diameter is of no concern, as long as surface speed is consistent. A Valuable Tool for All Paper Related Industries Paper Manufactures, can quickly: Evaluate the impact of additive, insolubilizer, binder, sizing, lubricant, furnish or pigment changes. Evaluate the impact of mechanical changes to the wet end, size press or coater. Evaluate run-to-run consistency. Predict print quality problems. Produce retainable dusting sample-swatches to help troubleshoot complaints. Web-Press-Printers and Off-Machine Coaters, can quickly: Predict problems such as coating or fountain solution contamination. Predict run duration between blanket changes. (Web-Press) Reject rolls without printing or coating the entire roll. Evaluate sample rolls when considering potential suppliers. Produce retainable dusting sample-swatches to help troubleshoot complaints. Additive, Binder, and Pigment Suppliers can quickly demonstrate the impact which their products have on dust or surface debris. Every additive sales and technical rep should carry the Dusting/Surface Contamination Gauge for “before-and after” machine-trials. Normally paper- machine-trials result when a mill is addressing a particular issue with a particular converter. Often by the time dusting, milking or whitening results are back from the printer or converter, the mill has moved on to other issues and the motivation is lost. A successful trial requires immediate results. With the Gauge, dusting and surface debris results can be evaluated before the trial has ended. Additive, binder, and pigment decisions can be made immediately.