Patent ID: 11858012
Assignee: FOAMTEC INTERNATIONAL CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  D  Y | IPC B  D

Claim 12:
13. A method for making a pre-saturated cleanroom wiper saturated with only ultra pure water comprising the steps of:
weaving a first microfiber material comprising a nylon/polyester conjugate comprising 25-30% nylon and 70-95% polyester and a second microfiber material comprising a polyester to create a woven fabric wherein the step of weaving comprises weaving the first and second microfiber materials using a repeating pattern having six warp threads and eighteen weft threads;
processing the woven fabric with high temperature, high pressure, and at least one surfactant;
cleaning the woven fabric with aseptic ultra pure water;
drying the woven fabric;
cutting the woven fabric and sealing the edges of the woven fabric to create individual wipers; and
packaging and pre-saturating the wipers with only ultra pure water.