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US 2024/0199366 A1Published application
Method for manufacturing short fibers, method for manufacturing nonwoven fabric, short fiber manufacturing device, and nonwoven fabric manufacturing device
AssigneeDaicel Corporation
InventorMasato SHIGEMATSU
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Abstract
A method for manufacturing short fibers includes relaxing entanglement of crimped cellulose acetate fibers in a tow band by applying a tension in a predetermined transfer direction to the tow band transferred in the transfer direction, the tow band containing the crimped cellulose acetate fibers and being impregnated with moisture, and forming short fibers by cutting the tow band in which the entanglement is relaxed.
Claims12
A method for manufacturing short fibers, the method comprising:
- relaxing entanglement of crimped cellulose acetate fibers in a tow band by applying a tension in a predetermined transfer direction to the tow band transferred in the transfer direction, the tow band containing the crimped cellulose acetate fibers and being impregnated with moisture;
- and
- forming short fibers by cutting the tow band in which the entanglement is relaxed.
A short fiber manufacturing device comprising:
- an entanglement relaxing unit configured to relax entanglement of crimped cellulose acetate fibers in a tow band by applying a tension in a predetermined transfer direction to the tow band transferred in the transfer direction, the tow band containing the crimped cellulose acetate fibers and being impregnated with water;
- and
- a short fiber forming unit configured to form short fibers by cutting the tow band in which the entanglement is relaxed.
Dependencies are inferred from the claim text.