JPH04229256A - Production of skin bonded member or sheet - Google Patents

Abstract

PURPOSE:To efficiently mass-produce a skin bonded member or sheet for a car interior material generating no fluff collapse in the napped skin material bonded to the surface thereof. CONSTITUTION:In a molding process wherein a base material 3 for molding a door trim or a pad material 6 for molding a sheet and a napped skin material 4 are set on a lower mold 1 and pressed by an upper mold 2 to integrally bond the napped skin material 4 to the base material 3 or the pad material 6, needle cloth 10 having numberless needle projections 9 allowed to protrude toward the napped fluffs of the napped skin material 4 is interposed between the upper mold 2 and the napped skin material 4 to press the napped skin material 4 and the base material 3 or the pad material 6 to prevent the collapse of the napped fluffs 4a.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention is an automotive interior material in which the raised skin material adhered to the surface of base materials and padding materials such as door trims, ceilings, backboards, armrests, instrument panels, etc., does not cause hair to fall. The present invention relates to a method for manufacturing a skin adhesive member and a skin adhesive sheet that can efficiently mass-produce the skin adhesive member and the skin adhesive sheet.

0002

[Prior Art] As interior materials and sheet materials for automobiles,
The base material or pad material and the raised skin material are set on the lower mold, and the raised skin material is bonded and integrated with the base material or pad material by applying pressure with the upper mold, thereby producing the skin adhesive member and skin adhesive sheet having raised surface. Although it has become mainstream, when such a raised skin material is used, there is a problem in that the raised hair is pressed by the mold during the pressure bonding process, causing the hair to fall, resulting in a significant deterioration in quality.

[0003] Therefore, as seen in JP-A-61-162317 and JP-A-61-172712,
A method has been considered in which needle-like protrusions formed on the surface of the mold prevent the hair from falling down, and the material is bonded and integrated with a raised skin material as a base, but such a method requires a mold with needle-like protrusions. Therefore, there are problems in that the production cost of the mold becomes very high, and if the needle-like protrusion is broken or deformed, it becomes difficult to repair it or replace the mold.

0004

[Problems to be Solved by the Invention] The present invention solves the above-mentioned conventional problems, and makes it possible to bond and integrate a raised skin material having raised hairs onto a base material or pad material without causing the hair to fall. In addition, the present invention was completed with the aim of producing a skin adhesive member and a skin adhesive sheet manufacturing method that can be extremely easily replaced even if the needle-like protrusions are damaged and can be manufactured at low manufacturing costs.

[0005]

[Means for Solving the Problems] The present invention, which has been made to solve the above-mentioned problems, sets a base material and a raised skin material on a lower mold, and then presses the raised skin material with an upper mold to attach the raised skin material to the base material. In the method for manufacturing a skin adhesive member that is integrated with adhesive, a cloth having numerous needle-like protrusions protruding toward the nap of the raised skin material is interposed between the upper mold and the raised skin material, and pressure is applied. The first invention provides a method for producing a skin adhesive member characterized by the following: A pad material and a raised skin material are set on a lower die, and then pressure is applied by an upper mold to bond and integrate the raised skin material to the pad material. The method for producing a member and a skin adhesive sheet is characterized in that a clothing cloth having numerous needle-like protrusions protruding toward the raising of the raised skin material is interposed between the upper mold and the raised skin material to apply pressure. The second invention is a method for manufacturing a skin adhesive sheet.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained in detail with reference to the illustrated embodiments. Figure 1 shows the process of forming a flat trim used as an interior material for automobiles. 4 is set, and an adhesive 5 such as a hot melt adhesive for adhering the raised skin material 4 is applied to the surface of the base material 3. The configurations of the raised skin material 4, the lower mold 1, and the upper mold 2 as described above are the same as those used in the production of conventional skin adhesive members, but in the present invention, the raised skin material 4 and the upper mold The raised skin material 4 and the base material 3 are bonded and integrated by applying pressure between the lower mold 1 and the upper mold 2 by interposing a clothing 10 having a plurality of needle-like protrusions 9 between them. It has characteristics.

That is, a clothing 10 having a plurality of needle-like protrusions 9 arranged on the lower surface toward the raised naps 4a of the raised skin material 4 is placed on the raised skin material 4 covering the base material 3 on the lower mold 1, When pressurized by the upper mold 2, the tips of the needle-like protrusions 9 enter between the raised naps 4a and press the ground cloth 4b, thereby pressurizing the entire raised skin material 4 to form a raised skin against the base material 3. The material 4 is bonded and integrated, and in this case, the nap 4a is not directly pressed by the lower surface of the upper die 2 as in the conventional case, and the nap is reliably prevented from falling.

[0008] The clothing 10 is easily and inexpensively molded from, for example, a breathable knitted fabric made of fiber, a knitted fabric made of metal, or a synthetic resin plate, and the lower surface thereof is coated with synthetic resin or metal. A countless number of needle-like protrusions 9 are formed. In addition, the needle-like protrusion 9 has a length of 0.5 to 2 with respect to the length of the nap 4a in order to effectively prevent the hair from falling down.
．． It is preferable to set the length to about 5 times as long and the needle diameter to be about 0.1 to 1.0 mm. In addition to the wooden board, the base material 3 may be a hard material such as a synthetic resin plate or an iron plate, or a soft material such as rubber or urethane. The cushion layer may be laminated and the adhesive 5 may be applied to the back surface thereof.

In the embodiment, when the upper mold 2 and the lower mold 1 are bonded under pressure, heating fluid such as water vapor or hot air is supplied to the upper surface of the raised skin material 4, so that the raised skin material 4 is bonded with pressure. The heating fluid adheres uniformly and smoothly without causing unevenness or wrinkles, and the heating fluid is applied to the raised skin through a plurality of discharge holes 2a provided on the lower surface of the upper mold 2 and the breathable clothing 10. It is configured so that it is sprayed uniformly onto the surface of the material 4. After the raised skin material 4 and the base material 3 are bonded and integrated as described above, the upper die 2 and the clothing 10 are lifted up to take out the skin adhesive member, and then the same process is repeated to form the raised skin 4a. Excellent quality skin adhesive members without falling hair will be continuously produced.

FIG. 2 shows a process for forming a sheet material for an automobile according to the second invention, in which a raised skin material 4 is set between a lower mold 1 and an upper mold 2, and the raised skin material 4 is set between a lower mold 1 and an upper mold 2. A clothing cloth 10 made of a synthetic resin plate has a plurality of needle-like protrusions 9 between the raised skin material 4 and the upper mold 2, and is bonded to a padding material 6 made of polyurethane foam placed on top. This invention is similar to the first invention in that it is characterized in that the raised skin material 4 and the padding material 6 are bonded and integrated by applying pressure between the lower mold 1 and the upper mold 2 with .

[0011] The raised skin material 4 has a raised surface 4a on its surface.
A cushion layer 7 is laminated on the back surface of a ground cloth 4b having a padding layer 7, and an adhesive 5 such as a hot melt adhesive is applied to the back surface of the cushion layer 7, and the adhesive 5 is applied to the raised surface material 4 toward the raised surface material 4. A clothing cloth 10 having a large number of needle-like protrusions 9 arranged on its lower surface is placed on the raised skin material 4 covering the pad material 6 on the lower mold 1, and when pressurized by the upper mold 2, the tips of the needle-like protrusions 9 are The part of the ground cloth 4 enters between the naps 4a.
By pressing b, the entire raised skin material 4 is pressurized and the raised skin material 4 is bonded and integrated with the pad material 6. In this case, the raised skin material 4 is attached to the upper mold 1 as in the conventional case.
Since the hair is not directly pressed by the lower surface of the hair, falling of the hair is reliably prevented.

[0012] Also in the second invention, when the upper mold 2 and the lower mold 1 are bonded under pressure, heating fluid such as steam or hot air is supplied to the upper surface of the raised skin material 4. The heated fluid is applied to the upper mold 2 through a plurality of discharge holes 2a provided on the lower surface of the upper mold 2 and the clothing 10.
It is configured so that it is uniformly sprayed onto the surface of the breathable raised skin material 4 through a plurality of ventilation holes 10a provided in the.

After the raised skin material 4 and the padding material 6 are bonded and integrated as described above, the upper die 2 and the clothing 10 are lifted up to take out the skin adhesive sheet, and then the same process is repeated. Excellent quality skin adhesive sheets without any falling of the naps 4a can be continuously produced. In addition, in the first invention and the second invention, even if the needle-like protrusion 4a is damaged, it can be easily repaired by simply replacing the clothing 10, and is excellent in workability and economy. It is something that

[0014]

[Effects of the Invention] As is clear from the above explanation, in the present invention, a skin adhesive member and a skin adhesive sheet that do not fall down can be efficiently produced, the production cost of the mold is extremely low, and the needle-like protrusions are In the event of damage, only the clothing needs to be replaced, so it is highly effective in terms of maintenance workability. Therefore, the present invention greatly contributes to the development of industry as a method for manufacturing skin adhesive members and skin adhesive sheets that eliminates the problems of the conventional methods.

[Brief explanation of the drawing]

FIG. 1 is a cutaway sectional view of a main part showing a molding process of an embodiment of the first invention.

FIG. 2 is a cutaway sectional view of essential parts showing the molding process of the embodiment of the second invention.

[Explanation of symbols]

1 Lower mold 2 Upper mold 3 Base material 4. Brushed skin material 4a brushed 6 Pad material 9. Acicular process 10 Clothes

Claims (4)

[Claims] 1. A method for manufacturing a skin adhesive member, in which a base material and a raised skin material are set on a lower mold, and then pressure is applied by an upper mold to bond and integrate the raised skin material to the base material, wherein the upper mold and the raised skin material are bonded together. 1. A method for producing a skin adhesive member, which comprises applying pressure by interposing a cloth having numerous needle-like protrusions protruding toward the raised skin material between the raised skin material and the raised skin material. 2. The method for producing a skin adhesive member according to claim 1, wherein the heating fluid is supplied through the breathable clothing and pressurized. 3. A method for producing a skin adhesive sheet, in which a pad material and a raised skin material are set on a lower mold, and then pressure is applied by an upper mold to bond and integrate the raised skin material to the pad material, wherein the upper mold and the raised skin material are bonded together. 1. A method for producing a skin adhesive sheet, which comprises applying pressure by interposing a cloth having numerous needle-like protrusions protruding toward the nap of the raised skin material between the material and the raised skin material. 4. The method for producing a skin adhesive sheet according to claim 3, wherein the heating fluid is supplied and pressurized through the breathable clothing.