Title:
FLOW PATH MATERIAL FOR LIQUID SEPARATION DEVICES
Document Type and Number:
WIPO Patent Application WO/2023/281719
Kind Code:
A1
Abstract:
The present invention provides a flow path material for liquid separation devices, the flow path material being not susceptible to collapsing when a high pressure is applied thereto, while being suppressed in decrease in the flow rate. A flow path material for liquid separation devices, the flow path material being formed of a tricot fabric that contains thermoplastic sheath-core composite fibers that are configured from two kinds of polyester resins having different melting or softening points, wherein: with respect to the thermoplastic sheath-core composite fibers, a high-melting-point component is arranged in the core part, and a low-melting-point component is arranged in the sheath part; the tricot fabric is obtained by rigidifying thermoplastic sheath-core composite fibers in a tricot knitted fabric by bonding the thermoplastic sheath-core composite fibers to each other, the tricot knitted fabric being weaved by a knitting machine having two reeds, using the thermoplastic sheath-core composite fibers for the front yarns and the back yarns; the wale density of the tricot fabric is 45-70 wales/inch (2.54 cm), and the course density of the tricot fabric is 40-70 courses/inch (2.54 cm); and if the tricot fabric is heat-pressed at 90°C and 4.0 MPa for three minutes, the change ratio in the thickness of the tricot fabric before and after pressing is 10% or less.
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Inventors:
MATSUNAGA MASAHIRO (JP)
Application Number:
PCT/JP2021/025851
Publication Date:
January 12, 2023
Filing Date:
July 08, 2021
Export Citation:
Assignee:
KB SEIREN LTD (JP)
International Classes:
B01D63/00; D01F8/14; D04B21/00; D04B21/16; D06C7/02; D06C15/00
Domestic Patent References:
| WO2017131031A1 | 2017-08-03 |
Foreign References:
| JP2017000939A | 2017-01-05 | |||
| JP2010131483A | 2010-06-17 | |||
| JP2020104099A | 2020-07-09 | |||
| JPS6019001A | 1985-01-31 | |||
| JP2021123811A | 2021-08-30 |
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