Wisconsin Oven Employee Wrote an Article Published on Process Heating
Richard Hoffmann of Wisconsin Oven Corporation recently wrote an article for Process Heating. The article goes in depth discussing the drying processes for non-uniform and heat-sensitive products.
“Uniformly drying a non-uniform product is difficult. Decreasing the drying time of heat-sensitive products is challenging. One example is a three-dimensional product saturated with water — for instance, molded-fiber packaging products. Other examples of demanding drying applications include:
- Drying water-based finishes applied to nonwoven fabrics without melting the polymer fabric.
- Kiln-drying lumber in an accelerated manner without case hardening, splitting or cracking.
- Drying pressure-sensitive adhesives on release liners without skinning or blistering.
Lightweight, nonwoven fabrics vary in thickness and basis weight after being formed. Uniformly drying a saturated finish without overheating the lightweight areas of the fabric is difficult. Drying lumber takes forever and a day. Actually, it requires many days, and aggressive attempts to reduce the drying time can result in boards splitting or cracking. Effectively drying pressure-sensitive adhesives presents a host of issues for web converters like label manufacturers.”
To read the full article, click here.