Technologies

Johns Manville offers various types of technologies for our nonwovens products. While all of these technologies service multiple applications, read below to see which technology fits your specific need.

Glass Nonwovens Wet-Laid 700x475

glass nonwovens wet-laid

Johns Manville's nonwoven glass mats are tailored to meet your needs. We start by selecting the JM fiber glass that best suits your end-use application. With our large family of glass chemistries, we are able to blend in polymer fibers or glass microfibers when fiber glass alone does not suffice. And depending on your requirements, we have a selection of formaldehyde-free, acrylic, urea formaldehyde and other resin binders. The finished mat can then be slitted to a width and wound to a diameter that works with your manufacturing process and/or your end product.

Glass Nonwovens Air-Laid 700x475

Glass Nonwovens air-laid

Utilizing a unique and sophisticated process, our glass microfibers are conveyed in a high-velocity air stream and formed into a nonwoven mat. The binder is spray applied and oven cured. This material can be manufactured with polyester spunbond or glass backing material. The resulting high-loft nonwoven material is mainly used in HVAC systems as a highly effective filtration media.

Glass Needle Mat 700x475

Glass needle mat

Johns Manville's needle mat is manufactured by bonding glass fibers via mechanical needling. Due to its voluminous product structure, our needle mat is a great option for use as thermal insulation in canteen kitchen appliances, gas turbines and manufacturing facilities. Our European-origin, white glass fiber needle mat is available in area weights from 300 to 4,600 g/sqm and its thickness ranges from 4.5 - 25.0 mm.

Synthetic Nonwovens Spunbond 700x475

Synthetic nonwovens spunbond

Johns Manville synthetic spunbond nonwovens are made by spinning continuous polyester / bico fibers onto a moving belt. After the spinning process, the polyester emerges as several thin, continuous filaments. These are cooled, stretched and solidified to consistent dimensions before being laid on the belt to form a mat. Depending on your requirements, we have the ability to vary our bonding technologies. Our nonwovens can be bonded thermally, mechanically or chemically - each process resulting in highly differentiated characteristics.

Synthetic Nonwovens Meltblown 700x475

Synthetic nonwovens meltblown

Johns Manville's melt-blowing process creates fibrous webs directly from polymers using high-velocity air to attenuate the filaments. Due to differences in filament size, meltblown nonwoven fabrics differ in degree of softness, opacity and porosity and serve high performance filtration applications. They are available as multi-layer (SMS/SMMS), calendared and uncalendared variants.