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US 2023/0119794 A1Published application
Hydrophilic Fluororesin Tube and Method for Manufacturing Hydrophilic Fluororesin Tube
AssigneeValqua, Ltd.
InventorsYoshihiro Setoguchi, Naoki Watanabe, Hirotaka Muto
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Abstract
A hydrophilic fluororesin tube includes a tube wall that contains a fluororesin fiber deposited to form a nonwoven fabric, and satisfies the following requirement (1): requirement (1); the tube wall of the hydrophilic fluororesin tube demonstrating an average transmittance, when immersed in water at 25° C. for 1 minute, of 40% or larger at 400 to 700 nm wavelength.
Claims8
A hydrophilic fluororesin tube
- comprising a tube wall that comprises a fluororesin fiber deposited to form a nonwoven fabric, and
- satisfying requirement (1):
- requirement (1);
- the tube wall of the hydrophilic fluororesin tube demonstrating an average transmittance, when immersed in water at 25° C. for 1 minute, of 40% or larger at 400 to 700 nm wavelength.
1 more element
A method for manufacturing a hydrophilic fluororesin tube, comprising:
- spinning a fiber-forming material that comprises at least one kind of fluororesin;
- forming a fluororesin tube by depositing the fiber obtained in the spinning a fiber-forming material onto a mandrel collector;
- and
- hydrophilizing the fluororesin tube obtained in the forming a fluororesin tube.
1 more element
Dependencies are inferred from the claim text.