JPH064288B2 - Forming method of skin material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a method for molding a skin material, and more specifically, a skin material comprising a skin and a cushioning material laminated on the back surface side of the skin. The present invention relates to a method for forming a skin material that forms a deep groove pattern.

[Conventional technology]

BACKGROUND ART Conventionally, a skin material used for a seat of a vehicle or the like is formed of a surface skin or a skin made of synthetic resin or the like, and a cushioning material made of slab urethane or the like joined to the back side of the skin, and It improves the feeling of sitting. In addition, a curved surface and a deep groove pattern are formed on the surface of the skin material by heat press molding or sewing to improve the appearance.

[Problems to be Solved by the Invention]

However, when the conventional skin material is used, a deep groove pattern having a sufficient depth cannot be formed by hot pressing, sewing, etc., and there is a defect that it becomes curved and the appearance cannot be improved.

Further, in order to form a deep groove pattern, conventionally, it is necessary to form a deep groove in a pad material, push a skin material into the pad material, bond it with an adhesive, or draw a skin material in the deep groove pattern portion. Was extremely complicated.

An object of the present invention is to provide a forming direction of a skin material which can easily and quickly obtain a deep groove pattern having a sufficient depth and can remarkably improve the appearance.

[Means for Solving the Problems]

The present invention has been made in view of the above-mentioned problems, and in a method for forming a skin material which forms a deep groove pattern in a skin material including a skin and a cushioning material laminated on the skin, a skin forming the skin material. Was formed so as to abut on the surface side of the skin in a forming die having a convex portion for deep groove pattern forming, a deep groove pattern was formed on the surface side of the skin, and the deep groove pattern was formed on the back surface side of the skin. A cushioning material is inserted into each of the plurality of concave portions in a non-bonding state with the skin, and then a backing material is placed on the back side of the cushioning material via hot melt, and the backing material is hot press molded to form a back surface of the skin. The backing material is joined to the bottom of the deep groove pattern on the side and the back surface image of the cushioning material.

[Action]

According to the present invention, a skin is formed by a mold having a convex portion for forming a deep groove pattern, a deep groove pattern is formed on the front surface side of the skin, and a plurality of concave shapes formed on the back surface side of the skin by this deep groove pattern. Since the cushioning material is inserted in the part without joining to the skin, a deep groove pattern of the skin can be formed clearly, and then the backing material is placed on the back side of the cushioning material via hot melt and the backing material is heated. Since it is press-molded, the hot melt melts and the cushioning material and the backing material and the bottom of the deep groove pattern on the back side of the skin are joined to the backing material, respectively, and a skin material having a deep groove pattern of the skin and the cushioning material and the backing material is obtained Is something that can be done.

〔Example〕

Hereinafter, a method for forming a skin material according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an outline of an embodiment of a skin material 1 formed by the method of the present invention. This skin material 1 is a skin 2 on the front surface side and a buffer layer laminated on the back surface side of the skin material 2. It is composed of a material 3. The skin 2 may be a resin sheet such as vinyl chloride resin, a back-coated cloth or genuine leather, and the cushioning material 3 may be high-density slab urethane.

A deep groove pattern 5 is formed on the skin 2, and a cushioning material 3 is inserted into each of a plurality of concave portions 7 formed on the back side of the skin 2 by the deep groove pattern 5, and a nonwoven fabric or the like is formed on the back side of the cushioning material 3. The backing material 9 is bonded to the backing material 9, and the back surface side of the skin 2 which is the bottom of the deep groove pattern 5 is bonded to the backing material 9. The bottom of the deep groove pattern 5 can be used as the sewing portion of the skin 2.

2 to 5 show respective steps of the present invention. In these drawings, reference numeral 11 is a forming die made of a vacuum forming die, and this forming die 11 has a convex for forming a deep groove pattern. The part 13 is formed. The number of convex portions 13 is not limited to that shown in the figure.

As shown in FIG. 2, the molding die 11 is disposed so that the front surface side of the skin 2 is in contact with the mold 11, and the vacuum pump 15 is operated to operate the skin 2
Then, the deep groove pattern 5 is formed by the convex portion 13 of the molding die 11. Next, as shown in FIG. 3, the cushioning material 3 is inserted into the plurality of concave portions 7 formed on the back surface side of the skin 2 by the deep groove pattern 5 in a non-bonded state with the skin 2. The cushioning material 3 may be divided into the number of the concave portions 7, or may be one sheet having a slit corresponding to the deep groove pattern 5.

Next, as shown in FIG. 4, a backing material 9 made of non-woven fabric with hot melt is provided on the back surface side of the cushioning material 3. This backing material 9 is made to contact with the bottom of the deep groove pattern 5 on the back surface side of the skin 2, and the position on the back surface side of the cushioning material 3 and the height position of the bottom portion of the deep groove pattern 5 are substantially equal to each other or the cushioning material 3 is provided.
The height position on the back side of the is slightly higher.

Therefore, as shown in FIG.
When the buffer material 3 is pressed by 7, the buffer material 3 is slightly pressed, and in this state, the hot melt is melted to bond the backing material 9 to the back surface side of the buffer material 3 and the deep groove pattern on the back surface side of the skin 2. The bottom of 5 is joined to the backing material 9.

After forming the skin material 1, the heating press 17 is raised to inject the stock solution of the foaming synthetic resin for forming the pad material into the back surface image of the backing material 9, and the upper die (not shown) is aligned with the forming die 11. The foam material can be integrally formed with the skin material 1 by foaming and curing. In this case, the backing material 9 made of a non-woven fabric can prevent the stock solution of the foamed synthetic resin from being impregnated into the buffer material 3.

〔The invention's effect〕

The above is the method of one embodiment of the method for forming a skin material according to the present invention. According to such a method, a deep groove pattern is formed on the skin by the convex portion for forming the deep groove pattern of the forming die, and the deep groove pattern is formed. Since the cushioning material was inserted into the multiple concave portions formed on the back surface side of the skin by the pattern in a state not bonded to the skin, a deep groove pattern of the skin can be clearly formed, and then hot melt is applied to the back surface side of the cushioning material. The backing material is arranged through, and since the backing material is hot press molded, the hot melt is melted,
The cushioning material and the backing material, and the bottom of the deep groove pattern on the back side of the skin are joined to the backing material, respectively, and a skin material having a deep groove pattern with a sufficient depth of the skin and the cushioning material and the backing material can be easily and quickly obtained. It is possible to obtain a skin material having an excellent appearance and free of wrinkles and the like.

[Brief description of drawings]

1 to 5 each show an outline of an embodiment of a method for forming a skin material according to the present invention. FIG. 1 is a sectional view of the skin material formed by the present invention, and FIG. 2 is a skin material. Is a cross-sectional explanatory view of a state in which the outer skin is arranged in a lower mold, FIG.
Sectional view of a state in which a backing material is provided on the back surface side of the cushioning material,
The figure is a cross-sectional explanatory view showing the hot-pressed state of the backing material. In the drawing, 1 ... Skin material, 2 ... Skin material, 3 ... Buffer material, 5 ... Deep groove pattern, 7 ... Recessed portion, 9 ... Lining material, 11 ... Mold, 13
... Convex portion for forming deep groove pattern, 15 ... Vacuum pump, 17 ...
Heating press machine.

Claims (1)

[Claims] 1. A method of molding a skin material comprising a skin and a cushioning material laminated on the skin to form a deep groove pattern, wherein the skin forming the skin is formed with a convex portion for forming the deep groove pattern. Arranged so that the surface side of the epidermis abuts the molding die having, forming a deep groove pattern on the surface side of the epidermis,
The cushioning material is inserted into each of the plurality of concave portions formed on the back surface side of the skin by the deep groove pattern in a non-bonded state with the skin, and then the backing material is arranged on the back surface side of the cushioning material via hot melt, A method of molding a skin material, comprising: bonding a backing material to the bottom of the deep groove pattern on the back surface side of the skin and the back surface side of the cushioning material by hot press molding the material.