Conductive fabric and a method for the manufacture of the conductive fabric, and a conductive sheet and film made using the conductive fabric
AssigneeSekisui Kagaku Kogyo Kabushiki Kaisha
InventorsHideki Wakahara, Yoshihiro Matsuo, Minoru Kawamura
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Abstract
A conductive fabric comprising conductive fibers and thermoplastic fibers with a higher heat shrinkage than that of said conductive fibers, said conductive fibers being crimped by heat shrinkage of said thermoplastic fibers. This invention also provides a conductive sheet or film comprising the conductive fabric and a base on which said conductive fabric is disposed, said conductive fabric and said base that are laminated together being fused into one piece by being heated at a temperature above the melting point of the thermoplastic fibers and melting said thermoplastic fibers.
Claims14
A conductive fabric comprising conductive fibers and thermoplastic fibers with a higher heat shrinkage before heat treatment than that of said conductive fibers, said conductive and thermoplastic fibers being in twisted engagement, wherein said conductive fibers have been drawn about said thermoplastic fibers and crimped as a consequence of heat-shrinking said thermoplastic fibers.
A method for the manufacture of a conductive fabric from conductive fibers and thermoplastic fibers with a higher heat shrinkage than the conductive fibers comprising:
- giving the conductive fibers and the thermoplastic fibers, respectively, a first twist;
- twisting both the conductive fibers and the thermoplastic fibers into single threads;
- weaving or knitting said single threads twisted together to continuously form a textile or a knit;
- gathering the textile or the knit to continuously form gathers of size predetermined by the degree of conductive fiber crimping desired by a gathering apparatus;
- and
- heating the gathered textile or knit to heat shrink the thermoplastic fibers, causing the conductive fibers to draw and crimp about the thermoplastic fibers.
A conductive sheet or film comprising a conductive fabric composed of conductive fibers and thermoplastic fibers with a higher heat shrinkage before heat treatment than that of the conductive fibers, said conductive and thermoplastic fibers being in twisted engagement wherein said conductive fibers have been drawn about said thermoplastic fibers and crimped as a consequence of heat-shrinking said thermoplastic fibers, and a base on which said conductive fabric is disposed, said conductive fabric and said base being laminated together and fused into one piece as a result of having been heated at a temperature above the melting point of the thermoplastic fibers.
Dependencies are inferred from the claim text.