Abstract: This invention provides a filter medium 1 comprising at least 5,000 thermoplastic synthetic resin monofilaments 2 of 0.03 to 0.001 mm in diameter aligned in parallel orderly in a tape-like form, said monofilaments being linked with each other in the longer direction thereof to form a plurality or number of linkage band portions crossing therewith at almost right angles in substantial width direction thereof so as to keep the thus aligned monofilaments in parallel. There is also provided a method for preparing a filter medium of membrane type made of thermoplastic synthetic resin monofilaments of 0.03 to 0.

Abstract: There is provided a fibrous filter screen formed by stretching, aligning in parallel and laminating a number of liquid crystal-spun poly-p-phenylenebenzoxazole fibers.

Abstract: A solid-liquid filtering method and system which comprises a thick band (7) of assembled filaments prepared by closely arranging paralleled monofilaments of predetermined length, a means for fixing (11) one end portion of said band and a network support (4) for keeping said band in a plane situation at proper location when said band is forced to turn in a regular direction, one end portion of said monofilaments being fixed and the other end portion being floated.

Abstract: This invention provides a filter medium 1 comprising at least 5,000 thermoplastic synthetic resin monofilaments 2 of 0.03 to 0.001 mm in diameter aligned in parallel orderly in a tape-like form, said monofilaments being linked with each other in the longer direction thereof to form a plurality or number of linkage band portions crossing therewith at almost right angles in substantial width direction thereof so as to keep the thus aligned monofilaments in parallel.

Abstract: Large diameter nodes integrally formed on a linear fiber at an appropriate interval to form a fiber body, so that multiple fiber bodies are attached to a support member in a state where slits are formed between adjoining fibers due to the large diameter nodes by arranging multiple fiber bodies in parallel with one another or laminating the multiple fiber bodies with one another. It is preferable that a thickness of the fiber of the fiber body is set to range from 0.003 to 0.05 mm, and an outer diameter of each large diameter node is set to be 1.03 to 1.50 times as large as the thickness of the fiber, and an interval of the large diameter nodes is set to be 5 to 100 times as large as the thickness of the fiber. With such a construction, it is possible to obtain the filtrating filter which is simple in construction and manufactured with ease, particularly capable of easily forming slits to have an arbitrary size through which liquid or gas to be suitably filtrated.

Abstract: A solid-liquid filtering method and system which comprises a thick band (7) of assembled filaments prepared by closely arranging paralleled monofilaments of predetermined length, a means for fixing (11) one end portion of said band and a network support (4) for keeping said band in a plane situation at proper location when said band is forced to turn in a regular direction, one end portion of said monofilaments being fixed and the other end portion being floated.

Abstract: A solid-liquid filtering method and system which comprises a thick band (7) of assembled filaments prepared by closely arranging paralleled monofilaments of predetermined length, a means for fixing (11) one end portion of said band and a network support (4) for keeping said band in a plane situation at proper location when said band is forced to turn in a regular direction, one end portion of said monofilaments being fixed and the other end portion being floated.

Abstract: A solid-liquid filtering method and system which comprises a thick band (7) of assembled filaments prepared by closely arranging paralleled monofilaments of predetermined length, a means for fixing (11) one end portion of said band and a network support (4) for keeping said band in a plane situation at proper location when said band is forced to turn in a regular direction, one end portion of said monofilaments being fixed and the other end portion being floated.

Abstract: A mat for a nursing bed having a number of repeatedly flexing thermoplastics filaments aggregated to form a stereonetwork aggregation having through hole portions for cleaning pipes, ventilating pipes, deodorants, and the like, with notches formed therein for flexibly forming the mat in a reclining motion of the bed to accommodate the body of a person on the mat.

Abstract: A solid-liquid separating filter media (4) for sewage, waste water, etc. comprising a mono- or multi-layered filter screen (3) in which a number of filaments (1) are closely aligned in parallel and crosswise bonded to hoops (2) at predetermined points thereof to form integral blind-like structure.