| Addressing performance and durability challenges For more than 40 years, Praxair Surface Technologies has provided restoration and recoating services for components used by manufacturers that produce and utilize manmade fibers such as polyester, polypropylene, nylon, polyethylene, glass, and carbon. Our surface coatings address parts performance and durability challenges, boosting productivity and reducing wear. Our wear-resistant ceramic (chromium oxide, aluminum oxide, alumina titania) and tungsten carbide coatings are used on numerous parts in the fiber producing, textile processing, and nonwovens industries, such as:
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Coatings that provide exceptional properties and solve problems for textile and nonwovens applications
Durable ceramic coatings finished to the 90-130 microinch Ra
“sweet spot” range
Our ceramic coatings, applied by the detonation gun (D-Gun) process, impart a unique nodular surfacefinish characteristic, which yields optimal frictional properties. Using the D-Gun process allows us to apply ceramics that can efficiently be finished to the 90-130 microinch Ra range—a "sweet spot" for many low-friction surfaces. By contrast, our competitors must resort to using plasma-applied ceramic, resulting in a smoother, less desirable coating. Even after "roughening up" the coating surface to the 90-130 microinch Ra range, their coatings do not maintain a desirable friction profile as long as our coatings applied by the D-Gun process.
"Picking" eliminated
For nonwovens applications, we provide ceramic coatings with precise surfacefinish properties that eliminate a common problem: "picking," where spunbond or melt-blown fibers follow the roll surface, wrap the roll diameter, and cause unscheduled machine downtime. Praxair's proprietary Series NW ceramic coating eliminates fiber "picking" on the roll service, so you get increased machine efficiency and reduced cleanup, maintenance, and downtime costs.
Table 1. Examples of common application problems and Praxair solutions
Below are examples of how Praxair addresses common problems in the textiles and nonwovens industries. Your solution may be different because we believe in collaborating with you to find your answer.
| Customer part/ component | | Key application problems | | Praxair solutions |
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| Fiber producers: Take-up rolls, guide pins, draw rolls, grooved rolls, package drive rolls, tow cutter blades, sizing cylinders, dying troughs | | Chipping due to the string-up gun hitting the roll surface | | Our D-Gun tungsten carbide coatings provide better chip resistance than chrome plating or ceramic coatings |
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| Fiber producers: Take-up rolls, guide pins, draw rolls, grooved rolls, package drive rolls, tow cutter blades, sizing cylinders, dying troughs | | Sub-par roll surface frictional properties | | Praxair's ceramic coatings applied by the D-Gun process optimize roll surface by providing a nodular surface finish in the optimum 90-130 microinch Ra range, and also exhibit superior wear resistance |
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| Nonwovens: Compression and compaction rolls | | "Picking" | | Our Series NW coating eliminates picking |
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Partner with us for a solution to your problem
We can help you solve your textile, fiber, or nonwovens production problem. Contact us to collaborate on your solution.
