초록 ▼

An apparatus and method for generating gas-phase active chemical species suitable for selectively processing one side of a textile or nonwoven material are described. Processing includes etching or stripping coatings, as examples. A low-temperature plasma is used to produce an ionized gas containing

An apparatus and method for generating gas-phase active chemical species suitable for selectively processing one side of a textile or nonwoven material are described. Processing includes etching or stripping coatings, as examples. A low-temperature plasma is used to produce an ionized gas containing radical species, atoms, ions, and electrons, some of which are suitable for removing or modifying the coating. For the purposes of the present invention, the plasma may be generated in a vacuum, or at atmospheric pressure. Dielectric-barrier discharges, atmospheric-pressure plasma jets, micro hollow-cathode discharges, coronas, or plasmas produced by a microwave discharge or laser-supplied energy may be used to generate the required species.

대표청구항 ▼

What is claimed is: 1. A method for selectively processing a one side of a two-sided textile or a two-sided nonwoven material, comprising the steps of:generating reactive chemical species using a low-temperature plasma proximate to the chosen side of the textile or nonwoven material and effective fo

What is claimed is: 1. A method for selectively processing a one side of a two-sided textile or a two-sided nonwoven material, comprising the steps of:generating reactive chemical species using a low-temperature plasma proximate to the chosen side of the textile or nonwoven material and effective for processing the chosen side of the textile or nonwoven material;exposing the chosen side of the textile or nonwoven material to the plasma for a period of time effective for processing the chosen side; andmaintaining the second side of the textile or nonwoven material in proximity to a plasma impermeable surface, wherein the low-temperature plasma is generated using a radiofrequency discharge between two electrodes, a first electrode being grounded, and a second electrode being powered.