Title:
積層不織布およびその製造方法
Document Type and Number:
Japanese Patent JP6560095
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a three-layer laminated nonwoven fabric which is improved in surface smoothness and has excellent printability, and which has a hardly fluffed surface and does not cause delamination.SOLUTION: A laminated nonwoven fabric is obtained by laminating three layers comprising a front surface layer, an intermediate layer, and a back surface layer. The front surface layer comprises an accumulation body of core-sheath type composite long fibers in which a sheath component comprises high-density polyethylene, and a core component comprises polyester having a higher melting point than the sheath component. The intermediate layer comprises an accumulation body of: core-sheath type composite short fibers in which a sheath component comprises high-density polyethylene, and a core component comprises polyester having a higher melting point than the sheath component; and single-phase type short fibers comprising polyester having a higher melting point than the sheath component. The back surface layer comprises an accumulation body of core-sheath type composite long fibers in which a sheath component comprises high-density polyethylene or linear low-density polyethylene, and a core component comprises polyester having a higher melting point than the sheath component. The constituent fibers of the intermediate layer have a fiber length of 2-30 mm, and the single-phase type short fibers have a fiber diameter of 3-10 μm. In the three layers, each sheath component is brought into a melt-solidified state and integrally adheres the layers to each other.SELECTED DRAWING: None
Inventors:
Tatsuta Morioka
Yusuke Nagatsuka
Matsuo
Yusuke Nagatsuka
Matsuo
Application Number:
JP2015207622A
Publication Date:
August 14, 2019
Filing Date:
October 22, 2015
Export Citation:
Assignee:
UNITIKA LTD.
International Classes:
D04H1/559; B32B5/26; D04H5/06; D06C15/02
Domestic Patent References:
| JP2010194478A | ||||
| JP2013221217A | ||||
| JP6133952A | ||||
| JP2003342890A | ||||
| JP10158971A |
Foreign References:
| WO2007086429A1 |