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US 5,854,148 AGranted
Optically readable mark recorded cloth and a production process thereof
AssigneeToray Industries, Inc.
InventorsHiroyoshi Asada, Shiro Imai, Miyoshi Okamoto
Life of this patent
Estimating the term…
Abstract
The object of the present invention is to provide optically readable mark recorded media, which can be permanently used to some extent with high durability against the mechanical forces applied by repeated washing, and can be read by optical readers accurately with few errors as essentially required for identification marks.
Claims6
Optically readable mark printed cloth, comprising:
- woven or knitted cloth, wherein said woven or knitted cloth is comprised of very fine fibers of between 1 and 0.00001 denier, wherein a product of the number of warps and the number of wefts is at least 1,000 threads/cm.sup.2 and a product of the number of warp fibers and the number of weft fibers is at least 5,000,000 fibers/cm.sup.2 ;
- and
- an optically readable recorded identification mark on said cloth, wherein said cloth is a water jet punched and fibers of said cloth are three-dimensionally intertwined.
Dependencies are inferred from the claim text.