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EP0110416A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A method for increasing color density and improving color fastness of dyed fabrics

Assignee: Shin-Etsu Chemical Co Ltd
•
Filing: 1983-12-01
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Granted: —
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Expires: 2003-12-01
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Abstract

Abstract 9 The invention provides a method for increasing the color density of dyed fabric material of, especially, synthetic fiber as well as the fastness of the color by rubbing and washing, in particular, when the dyed fabric material is finished with various kinds of fabric finishing agents. The inventive method comprises exposing the dyed fabric material either before or after the finishing treatment to low temperature plasma of an inorganic gas under a reduced pressure. The inorganic gas is preferably oxygen or a gaseous mixture containing at least 10% by volume of oxygen. The color-deepening effect is particularly remarkable when the color of the dyed fabric material is black to impart increased graveness and vividness of the color.

Inventors

  • 👤 Susumu Shin-Etsu Kagaku Kougyou Ueno
  • 👤 Hirokazu Nomura
  • 👤 Shinobu Hashizume
  • 👤 Toshiaki Nishide

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 03:41
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02; D06M; D06M10/00; D06M10/02; D06M10/025; D06P5/20; D06P5/2016; D06M2101/00; D06M2101/16; D06M2101/30; D06M2101/32

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 57 words
A method for increasing the color density and color fastness of a dyed fabric material composed of at least 50 % by weight of a synthetic fiber which comprises exposing the dyed fabric material to low temperature plasma in an atmosphere of an inorganic gas under a pressure in the range from 0.01 Torr to 10 Torr.
Claim 2
Independent Claim 57 words
A method for increasing the color density and color fastness of a dyed fabric material composed of at least 50 % by weight of a synthetic fiber which comprises exposing the dyed fabric material to low temperature plasma in an atmosphere of an inorganic gas under a pressure in the range from 0.01 Torr to 10 Torr.
Claim 3
Dependent Claim 33 words
The method as claimed in claim 1 wherein the step of exposing the dyed fabric material to low temperature plasma is preceded by a treatment of the fabric material with a color-deepening agent.
Claim 4
Dependent Claim 34 words
The method as claimed in claim 1 wherein the step of exposing the dyed fabric material to low temperature plasma is preceded by a treatment of the fabric material with a fabric finishing agent.
Claim 5
Dependent Claim 31 words
The method as claimed in claim 1 wherein the inorganic gas is an oxidizing gas which is oxygen or a gaseous mixture containing at least 10 % by volume of oxygen.

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