How Our Wipers are Made

Our integrated wiper manufacturing process ensures the highest possible quality. From knitting through packaging, each step has been engineered to reduce contamination burden. This approach differs from traditional wiper manufacturing where the final laundering process is relied on to yield a clean wiper. Zolab’s progressive process produces consistently cleaner wipers.

Knitting

Our knit polyester wipers start as individual yarns which are then interlocked with two rows of stitches, one directly behind the other. This double knit interlock structure features identical front and back sides and a smooth, abrasion resistant surface perfect for wiping. Our 25 dedicated knitting machines can produce over 5 tons of material per day.

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Finishing

Our proprietary in-house finishing process has been specifically developed for cleanroom textiles. Finishing is the critical first step in cleaning the textile web after knitting. By combining finishing with advanced pre-cleaning we can reduce contamination burden early in the process. A machine vision system is used to ensure defect free material.

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Laser Cutting

We use laser cutting to create individual wipers. The resulting edges are precise, thermally sealed and critically clean.

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Cleanroom Laundering

Wipers are laundered in a Class 5 cleanroom using deionized water and clean surfactants. This final cleaning step ensures the lowest possible levels of fibers and non-volatile residue.

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Cleanroom Packaging

Wipers are vacuum packaged in low contamination resealable bags. The laminated construction ensures all printing is protected between a clear layer of polyethylene and a white layer of biaxially oriented nylon. These bags can be wiped down per cleanroom protocols and used to store both wet and dry wipers.

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Lab Testing

We test each lot of wipers for a full spectrum of contamination characteristics based on IEST procedures. More details on our in-house lab testing can be found on the quality page.

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