JoAnn Quitmeyer, Director of R&D at Kyzen Corporation, Nashville, TN, is involved in the formulation and development of an array of aqueous- and solvent-based cleaning agents.JoAnn
is also of the opinion "that environmental issues will continue to be at the forefront as reduced VOC, COD (chemical oxygen demand), and BOD (biological oxygen demand) limits spread across the United States and around the world."She
adds that "government legislation dictates performance.
"More and more users are screening viable candidate technologies in an effort to minimize the cost/gallon and/or cost/widget manufactured," adds JoAnn Quitmeyer
sees a number of approaches to process-oriented cost control.Chemical loss through evaporation and atomization can be reduced through temperature reduction and installation of demis-ters.Chemical carry-over or dragout can be reduced through appropriate parts fixturing, nozzle design and positioning, and curtains.Cleaning chemistries that reject or release soils can be regenerated for re-use.Last but not least, JoAnn
notes the importance of identifying methods for optimizing contamination removal.
While NVR and particulate analysis remain important, for some applications, JoAnn Quitmeyer
sees the increased sophistication of Q.C. techniques and instrumentation as contributing to increased requirements for cleanliness and contamination control.
adds that as soils become more complex and more sophisticated, techniques to increase bath-life will continue to be adopted."Bath skimming and filtration are techniques used to remove contaminants from cleaning solutions.Very few machines are being built today without some means of routinely removing contaminants."She
also voices the concern that the devices to enhance bath life require routine maintenance, "something many users fail to do."