Gas plasma treatment for water and oil proofing of fabrics and p

Details Gas plasma treatment for water and oil proofing of fabrics and p Gas plasma treatment for water and oil proofing of fabrics and p

1992-04-06

1994-07-12

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204165, 204130, 204131, 204132, H05F 300

Patent

active

053285760

ABSTRACT:
An improved method for imparting water and oil repellent surface properties to fabrics or paper includes pretreatment in a low pressure oxygen plasma in the presence of water vapor followed by plasma polymerization of methane in a high frequency glow discharge carried out in the same treatment chamber. The resultant polymer film formed on the material surface resists separation from the treated material even after prolonged immersion in water. The method is characterized by use of low cost and readily available starting monomer, by use of a single treatment unit for all stages of the process, reduced energy requirements and treatment time, and improved results over conventional processes.

REFERENCES:
patent: 4419869 (1983-12-01), Sando et al.
patent: 4465738 (1984-08-01), Chang
patent: 4606930 (1986-08-01), Ueno et al.
patent: 4693799 (1987-09-01), Yanagihara et al.
patent: 4772348 (1988-09-01), Hirokawa et al.

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