JPS60189432A - Manufacture of interior trimming material - Google Patents

Abstract

PURPOSE:To improve quality of trimming by reducing operation manpower, by a method wherein after a skin material has been shaped by unifying it with an ornament through vacuum molding, liquid foamed plastics raw materials are poured on the skin material for foaming. CONSTITUTION:An ornament 2 is placed on a predetermined position of a vacuum molding tool 1 having a cavity in a shape of an interior trimming material, a skin material 3 made of soft vinyl chloride resin leather is softened by heating the same, vacuum molding is performed through the vacuum molding tool 1 whereon the ornament 2 has been placed and both of them are made to unify through an adhesive agent. After foamed plastics raw materials have been poured into a hollow part formed on the top of the skin material 3 the vacuum molding tool 1 is covered with a lid 5 serving as an upper force, a liquid foamed plastics raw material 4a is made to foam and a foam layer 4 is formed. In this instance, a molded material is shaped in a shape running along the surface of the cavity.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing an interior material having an ornament on its surface.

(Description of Prior Art) In the production of interior materials, for example, taking a door trim which is a vehicle interior material, (1) A foam layer such as polyurethane foam and vinyl chloride that can be high-frequency welded onto a base material such as hardboard. A method of laminating the skin material of resin leather in this order, crimping the periphery with a high-frequency welder, and forming an arbitrary pattern on the surface by heat pressing, etc., or (2) a method of stamping and pressing a base material into a predetermined shape. By applying an adhesive onto the material, vacuum forming a skin material made of a laminate of a foam layer such as polyurethane foam and vinyl chloride resin leather, and pasting the base material and the skin material. This is what is currently being done.

However, the Kuuchi materials obtained by these manufacturing methods are
Since the skin material (or the surface layer of the skin material) is composed of a single layer, it does not change easily, and since it is made of polyvinyl chloride resin, it has the disadvantages of being cold to the touch. Ta.

Therefore, in some car models, an ornament made of K1m is added to the surface of the above-mentioned molded product (door trim body) obtained by the above-mentioned manufacturing method. Alternatively, pasting (so-called post-arashii) is practiced. However, in both cases, post-work is required, and in the case of sewing, the object to be attached (door trim)
Sewing is difficult due to the large size of the ornament, and in the case of gluing, adhesive cannot be applied to the periphery of the ornament to prevent the adhesive from spilling out, which tends to create gaps around the periphery, making it easy to lift up and causing the ornament to sew. There was a problem with the cape, which made positioning difficult.

(Object of the Invention) The present invention has been made in view of the above points, and an object of the present invention is to provide a manufacturing method that can integrally mold an ornament when molding an interior material, thereby reducing the number of work steps and improving the finished quality. purpose.

(Structure of the Invention) The manufacturing method according to the present invention integrally molds an ornament when molding an interior material. The method involves vacuum forming to integrate with the ornament and shaping the skin material, and then injecting and foaming a liquid foamed plastic raw material onto the skin material. Embodiments of the present invention will be described below in the order of manufacturing steps with reference to the accompanying drawings.

(1) Placing the ornament (FIG. 1) The ornament 2 is placed in a predetermined position on the vacuum forming mold 10 having a shape of interior material. Ornament) A decorative material made of woven fabric, non-woven fabric, or flocked product is laminated on a rigid core material such as 2ti hardboard, or a pad material such as soft polyurethane foam is interposed between the core material and the decorative material. It is a piece of paper whose periphery is bordered with molding. The edging is preferably formed by sandwiching moldings in a U-shape. Further, it is preferable that the molding has a concave groove on its j-face, and that the concave groove is formed on the outer peripheral side of the ornament 2. The ornament 2 is placed so that the outer surface of the core material is coated with an adhesive and the core material side is the outer surface, that is, the decorative material side is placed on the cavity surface. At this time, it is preferable to provide four parts 1a for attaching the ornament 2 on the cavity surface to position the ornament 2.The depth of the four parts 1a is determined according to the desired degree of protrusion of the ornament 2 in the product. .

(2) Vacuum forming of the skin material (Fig. 2) A skin material 6 made of soft seeded vinyl resin leather or the like is heated and softened, and a vacuum formed bag 1 on which the ornament 2 is placed is formed.
Vacuum forming. At this time, the ornament 2 and the skin material 6 are bonded and integrated with the adhesive attached to the outer surface of the core material of the ornament 2.

In addition, since the skin material 6 is in close contact with the ornament 2 on the sides of the ornament 2 during vacuum forming, if the molding as the edging is provided with a groove on the side surface, the skin material 6 will fit in the groove. It fits into the groove and is shaped into a round shape.

(3) Injection of liquid foamed plastic raw material (Figure 2) Polyurethane foam raw material % The liquid foamed foam stick raw material 4a is injected.

If necessary, reinforcing fibers such as glass fiber m or mats are placed in the recesses prior to the injection of the liquid foamed plastic raw material 4a.

(4) Foaming of liquid foam plastic raw material (Fig. 6) The vacuum forming mold 1 is covered with a tube 5 that is similar to the upper mold, and the liquid foam plastic raw material 4a is foamed to form the foam layer 4. do. At that time, the skin material 6 is pressed against the cavity surface of the vacuum mold 1 by foaming pressure, and in this state, the foam layer 4
, the molded body is shaped to follow the cavity surface.

At this time, if a concave groove is provided on the side surface of the molding, a concave groove that fits in the concave groove is also formed on the skin material 6.
A foam layer 4 is formed to fill the groove of the skin material 6,
The ornament 2 is also held from the side, so there is no risk of the surroundings of the ornament 2 lifting up, and the skin material 6 and foam layer 4 are made of liquid foam plastic raw material 4a.
Although the self-adhesive force during foaming allows the adhesive to be integrated, if necessary, an adhesive is applied to the skin material 6 prior to the injection of the liquid foaming material 4a.

(Effects of the Invention) As described above, the present invention allows the ornament to be integrally molded when molding the interior material, thereby reducing the number of work steps, and also making it possible to securely fix the ornament to the skin material even at the periphery of the ornament. It also has the advantage of being able to obtain a surface and interior material that does not have the risk of lifting the periphery of the ornament, making it industrially useful.

[Brief explanation of drawings]

The drawings relate to the present invention; Fig. 1 is a cross-sectional view of a vacuum forming mold when placing an ornament, Fig. 2 is a sectional view of a vacuum forming mold during vacuum forming, and Fig. 3 is a sectional view of a vacuum forming mold during foaming. ornament,
6 is skin material, 4ati liquid foam plastic raw material, 4
This is a Fi foam layer.

Claims (1)

[Claims] The nine ornaments are framed with a decorative molding, etc., and placed in a predetermined position in a vacuum forming mold, and the skin material is vacuum formed using the vacuum mold to integrate with the ornament, and the skin material is shaped. A method for producing an interior material, characterized by injecting a liquid foamed plastic raw material onto the material and foaming the material.