Manufacturing method of vehicular interior decorating material

A manufacturing method and technology for interior trim, applied in the field of manufacturing interior materials for vehicles, can solve problems such as limitations, and achieve good appearance, guaranteed adhesion, and excellent adhesion

Active Publication Date: 2014-12-24
HIROTANI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this technology, a special manufacturing method is required to concentrate the heat-expandable particles in one direction, and there is a limit to improving rigidity in order to concentrate them in one direction.

Method used

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  • Manufacturing method of vehicular interior decorating material
  • Manufacturing method of vehicular interior decorating material
  • Manufacturing method of vehicular interior decorating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] stampable sheet

[0121] Thermoplastic resin: polypropylene particles (weight average molecular weight 200,000, MFR65g / 10min, average particle diameter Melting point 165°C)

[0122] Reinforcement fiber: glass fiber (length 25mm, average diameter 13μm)

[0123] Thermally expandable particles:

[0124] Surface material

[0125] Polyester organic fiber non-woven fabric (thickness 1.2mm)

[0126] Resin sheet (resin film)

[0127] Polypropylene with a thickness of 40 μm (MFR65, melting point 160°C)

[0128] polyamide fiber

[0129] Nylon 6 with a thickness of 25 μm (melting point 215°C)

[0130] Spunbond nonwoven fabric

[0131] Polyester fiber spunbonded non-woven fabric (weight per unit area 13g / m 2 , thickness 0.08mm)

[0132]The dispersion is prepared by adding 0.5 g / L of surfactant, namely sodium dodecylbenzenesulfonate, to 1.5 liters of water and then stirring to prepare a bubble containing tiny bubbles, and then adding A raw material formed of 40% by dry...

Embodiment 2

[0141] Other conditions were the same as in Example 1 except that the length of the reinforcing fibers, namely glass fibers, was 25 mm and the average diameter thereof was 11 μm.

Embodiment 3

[0143] Other conditions were the same as in Example 1 except that the length of the reinforcing fibers, namely glass fibers, was 25 mm and the average diameter was 7 μm.

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Abstract

The invention discloses a manufacturing method of vehicular interior materials. The method comprises the steps of preparing stampable sheets (1) having thermoplastic resin, reinforced fiber and heat-expansibility particles in a dispersed way; placing cuticle materials (2) on the stampable sheets and heating as well as compressing the cuticle materials through a flat type hot press (21); pressing the cuticle material on the surfaces of the stampable sheets to manufacture a pasting material (3) formed by pasting the cuticle material on the stampable sheets; opening the hot press and making the heat-expansibility particles of the stampable sheets of the pasting material expand and form an expanding pasting material (4) with a set thickness; placing the expanding pasting material in a cold press for pressurization and shaping; and thus forming a vehicular interior decorating material. By the method, an attaching material which has a increased thickness due to the heat-expansibility particles contained in the stampable sheets when sheet materials are expanded and can fully ensure the rigidity of the pasting material formed by the stampable sheets and the cuticle materials and the caking property between the stampable sheets and the cuticle material is obtained.

Description

technical field [0001] The present invention relates to a method for manufacturing a vehicle interior material excellent in both rigidity and adhesiveness, in particular to a vehicle interior formed by laminating a skin material on a base material formed of a stampable sheet. Manufacturing method of decoration materials. Background technique [0002] A punchable sheet is a composite material made of reinforcing fibers such as glass fiber and carbon fiber and thermoplastic resin, etc., and is a thin sheet suitable for punching after thermal expansion to form a large molding. This punchable sheet can be formed into complex shapes, and its molded products have high strength and light weight, so this punchable sheet has been put into practical use in the fields of automotive interior materials and the like in recent years. Since this punchable sheet contains reinforcing fibers that have been opened to almost a single fiber state, if the temperature is reheated to a temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/04B32B27/08B32B27/12B32B27/36B32B27/40B32B37/06B32B37/10
Inventor 上原昌浩村上匡史
Owner HIROTANI CO LTD
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