Fibrous structural article and manufacturing method thereof

A manufacturing method and structure technology, applied in the direction of upper structure, upper structure sub-assembly, non-woven fabric, etc., can solve the problems of unstable shape, inconvenient use, easy elongation, etc., and achieve easy operation, easy use, and restraint The effect of thinning

Active Publication Date: 2012-01-25
TOYOTA BOSHOKU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a problem that it is easy to elongate when a tensile force is applied along the interlayer direction (refer to Figure 16 ), and sometimes breaks between layers (cf. Figure 17 ), inconvenient to use
In addition, when the folded sheet is heated and pressurized, since the pressing force is applied in the folding direction, elastic recovery occurs after the pressure is removed (refer to Figure 18 ) and the shape becomes unstable

Method used

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  • Fibrous structural article and manufacturing method thereof
  • Fibrous structural article and manufacturing method thereof
  • Fibrous structural article and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Use 40% by mass of polyethylene terephthalate fibers (manufactured by Nippon Koan (Gaoan) Co., Ltd., trade name "SD 150", average fineness: 3.3 dtex, average fiber length: 10mm) as the first short fiber , using 40% by mass of core-sheath type heat-fusible short fibers (manufactured by Japan Toray (Toray) Co., Ltd., trade name "T9611", average fineness: 2.2 dtex, average fiber length: 10mm) as the second short fiber , and use 20% by mass of granular polyurethane foam (use the crushed block of soft polyurethane foam. Density: 0.015 ~ 0.030g / cm 3 , maximum size: 15mm), wherein, the material of the core of the core-sheath heat-fusible short fiber is polyethylene terephthalate (melting point: 260°C), and the core-sheath heat-fusible short fiber The material of the sheath portion of the fiber is a fiber of copolymer polyester (melting point: 110° C.).

[0086] Dry-mix the above-mentioned first and second short fibers and granular polyurethane foam, and pour the mixture into ...

Embodiment 2

[0089] The mixture of dry blending 20% ​​by mass of the first short fiber, 20% by mass of the second short fiber, and 60% by mass of the granular polyurethane foam is formed into a mold surface having a shape along the shape of the preformed body 10a. The mold, fed by pneumatic conveying at a constant speed of 50g / sec, is formed as Figure 13 A preform 10 having four preforms 10a is shown. Thereafter, using the preform 10 formed with the four preforms 10a, heat treatment was carried out in the same manner as in Example 1 to produce Figure 14 As shown, there is formed a fiber structure molded body 100b of four fiber molded parts 100a (in addition, in order to avoid complexity, in Figure 14 The annual ring-shaped dotted lines are omitted).

[0090] As described above, especially when the final shape of the fibrous structure is more complicated, the preformed part 10b having a shape corresponding to the final shape may be formed in advance to manufacture the molded body 100b ...

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Abstract

The present fibrous structural article is a material in a plate-like shape and having multiple fibers adhered to one another, and fibers are oriented from one surface side toward the other surface side of the fibrous structural article, and the fibers are arranged in an annual ring centering on a virtual axis. The present production method of a fibrous structural article comprises a fiber supplying process for blowing and supplying first short fibers and second short fibers, into a forming mold in a hollow box shape and having a first bottom wall, sidewalls and second bottom wall, from a fiber supplying port formed through the first bottom wall, and a melting process for melting at least part of the second short fibers.

Description

technical field [0001] The invention relates to a fiber structure and a manufacturing method thereof. Specifically, the present invention relates to a fibrous structure and a method for manufacturing the fibrous structure in which the accumulated fibers are oriented from one surface side to the other surface side of the fibrous structure and arranged in an annual ring shape, when It is easy to use because it is not easy to elongate and break when a tensile force is applied in the radial direction, and since no pressing force in a specific direction is applied to the fiber aggregate formed by stacking fibers, elastic recovery after molding does not occur ( spring back), etc., have excellent shape retention; the manufacturing method of the fiber structure can use a simple device and obtain the fiber structure with simple operation. Background technique [0002] Conventionally, sheet-shaped materials have been used in a wide range of product fields such as vehicle interior mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/74D04H1/558D04H1/54B60R13/02
CPCD04H1/74D04H1/541D04H1/736D04H1/5412D04H1/5414Y10T428/24355Y10T428/249921
Inventor 上野伸和别府泰礼坪内晃
Owner TOYOTA BOSHOKU KK
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