Title:
HOT-BONDING SPLIT-TYPE COMPOSITE STAPLE FIBER, WET-TYPE NONWOVEN FABRIC, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2022154115
Kind Code:
A
Abstract:
To provide a hot-bonding split-type composite staple fiber which has less fiber-fiber fusion and has excellent dispersibility and excellent collection of fine grains, a wet-type nonwoven fabric, and a manufacturing method thereof.SOLUTION: A hot-bonding split-type composite staple fiber is composed of a component A comprising a fiber-forming synthetic resin and a component B having a melting point lower than 20°C, wherein the component is arranged in segments of eight or over, a fiber fineness is 0.01-1 dtex, and an aspect ratio is 100-3000. Moreover, preferably, each component is arranged alternately radially, and a central part has a solid or a hollow structure. Also provided is a wet-laid nonwoven fabric in which: a thickness of a portion where ultrafine fibers A are exposed to a nonwoven fabric surface is 5 μm or under; and the ultrafine fibers A existing in a fiber bundle shape forms a protrusion and the hot-bonding component B forms a recess. Further provided is a manufacturing method of the wet-laid nonwoven fabric, including a wet-type paper-making and a calender treatment.SELECTED DRAWING: Figure 1
Inventors:
TAKASHIMA MIKI
NAGAMUNE KEIJI
NAGAMUNE KEIJI
Application Number:
JP2021057004A
Publication Date:
October 13, 2022
Filing Date:
March 30, 2021
Export Citation:
Assignee:
TEIJIN FRONTIER CO LTD
International Classes:
D01F8/14; D04H1/54; D21H15/10
Attorney, Agent or Firm:
Taro Tameyama
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