KR20160142427A - Interior materials for automobiles and method of manufacturing the same - Google Patents
Interior materials for automobiles and method of manufacturing the same Download PDFInfo
- Publication number
- KR20160142427A KR20160142427A KR1020150077700A KR20150077700A KR20160142427A KR 20160142427 A KR20160142427 A KR 20160142427A KR 1020150077700 A KR1020150077700 A KR 1020150077700A KR 20150077700 A KR20150077700 A KR 20150077700A KR 20160142427 A KR20160142427 A KR 20160142427A
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- interior material
- automotive interior
- material layer
- adhesive
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automotive interior material and a method of manufacturing the same, and more particularly, to an automotive interior material and a method of manufacturing the same.
In general, resin molded parts are used for interior parts of automobiles such as center fascias, instrument panel finishing materials, door garnishes, and console boxes, and resin molded articles are widely used as surface finishing materials for home appliances.
In particular, various control devices and convenience devices are installed in a dash board, an audio deck, a gear shift portion, an airbag, a door lock, and a window opening / closing portion mounted around a driver's seat and a passenger seat of a vehicle. An interior finishing panel is installed in the gap between the exterior of the apparatus and the interior material to finish the interior material, and this interior material is an important factor for determining the sensibility quality of the interior of the vehicle.
As described above, since the automotive interior material has a considerable influence on the aesthetics inside the automobile, there is a growing demand for aesthetic appearance in the trend of automobiles becoming more sophisticated and individualized.
Accordingly, in recent years, there has been a growing demand for automotive interior materials to which natural materials such as real wood are applied in order to obtain a sophisticated appearance and fine texture in appearance.
A related prior art is Korean Patent No. 10-0830882 (published on May 22, 2008), which discloses a reinforced laminated sheet and a method for producing the same.
An object of the present invention is to provide an automotive interior material and a method for manufacturing the same, which can improve the degree of freedom of design by securing excellent moldability through the improvement of the radius of curvature and the molding depth.
According to an aspect of the present invention, there is provided an automotive interior material comprising: a substrate layer; And a finishing material layer having a strength reinforcing layer formed on the base layer, a surface material layer formed on the strength reinforcing layer, and a softening layer impregnated with an adhesive interposed between the strength reinforcing layer and the surface material layer.
According to another aspect of the present invention, there is provided a method for manufacturing an automotive interior material, comprising: (a) forming a finishing material layer in which a strength reinforcing layer, a softening layer impregnated with an adhesive, and a surface material layer are sequentially stacked, Molding in a compression method; And (b) inserting an injection-molded base layer under the finishing material layer by insert injection.
The automotive interior material and the method of manufacturing the same according to the present invention include a method of inserting a softening layer impregnated with an adhesive in a space between a surface material layer and an intensifying stiffener layer to secure flexibility and buffering property by a softening layer It is possible to prevent cracks from being generated in the surface material layer at the edge bending portion and to prevent defects such as tearing.
In addition, since the flexible layer is formed as an integral structure in which the adhesive is impregnated on the both surfaces of the flexible substrate according to the present invention, there is no need to form a separate adhesive layer, There is a structural advantage in that the interlayer peeling failure can be prevented in advance.
Further, the automotive interior material and the manufacturing method thereof according to the present invention have a curvature radius (R) of <5 and a maximum molding depth (D) of 6 to 12 mm, So that the degree of freedom of design can be improved and various designs can be applied.
1 is an exploded perspective view showing an automotive interior material according to an embodiment of the present invention.
2 is an assembled cross-sectional view illustrating an automotive interior material according to an embodiment of the present invention.
3 to 5 are process sectional views illustrating a method of manufacturing an automotive interior material according to an embodiment of the present invention.
Fig. 6 shows the moldability evaluation results of the automotive interior material produced according to Example 1 and Comparative Example 1. Fig.
Fig. 7 shows the moldability evaluation results of the automotive interior material produced according to Examples 2 to 3 and Comparative Examples 2 to 3. Fig.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automotive interior material according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an exploded perspective view showing an automotive interior material according to an embodiment of the present invention, and FIG. 2 is a sectional view showing an automotive interior material according to an embodiment of the present invention.
Referring to FIGS. 1 and 2, an automotive
The automotive
That is, in the automotive
The
At this time, by using a non-foamed substrate which is not subjected to the foam molding process using the foaming agent as the
The
At this time, the
The
At this time, the
The
The
The
Natural wood or synthetic wood may be used when the natural material is used as the
Particularly, when real wood is applied to the
In the present invention, 'real wood' refers to a veneer obtained by thinning an ash, walnut or the like, and a veneer made by cutting and cutting natural wood have.
The automotive
The real wood may be selected from natural wood species that can be expected to have an appearance effect as an automobile
That is, when a real wood product is used as the automotive
The softening
The
For this, the
At this time, it is preferable to use at least one material selected from nonwoven fabric, glass fiber paper, carbon fiber fabric, cellulose, pulp and the like as the flexible substrate.
Examples of the adhesive include polyurethane, polyamide, ethylene-vinyl acetate, polyvinyl acetate, phenol, melamine, urea, It is possible to use an epoxy resin such as epoxy, polyester, polyvinyl alcohol, acrylonitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), alkyd, acetyl cellulose, nitrocellulose nitro cellulose, and hot melt thermoplastic polyurethane.
When the softening
Further, since the
As a result, the automotive
On the other hand, the
It is preferable that the
The
Specifically, the aqueous system paint may include at least one selected from the group consisting of a vinyl emulsion, a milk casein, a sodium silicate, and a metal as a solvent to be diluted with water as a solvent, and the oil based coating material may contain an organic solvent As the paint to be used by dilution, it may include at least one selected from the group consisting of boiling oil, linseed oil, resin varnish, oil varnish and oil enamel.
The synthetic resin coating material may be a coating material containing a synthetic resin as a coloring agent and may be at least one selected from the group consisting of polyurethane, (unsaturated) polyester, acrylic acid, acrylate, epoxy, phenol, melamine, urea, polyisocyanate, enamel and phthalic acid And the natural resin-based paint may include a lac varnish, a damer varnish, or a quick-drying varnish as a paint containing a natural resin as a coloring agent, and the fiber-based paint may contain fibrin as a coloring agent As the coating material, nitrocellulose, acetylcellulose, benzylcellulose or the like may be included.
The metal-based paint or the metal oxide-based paint is a paint containing a metal or a metal oxide as a coloring agent. Examples of the coating include germanium (Ge), hafnium oxide (HfO 2 ), magnesium fluoride (MgF 2 ), magnesium oxide (MgO 2 ) 2 ), titanium oxide (TiO 2 ), titanium oxide (Ti 2 O 3 ), tantalum oxide (V) (Ta 2 O 5 ), yttrium oxide (Y 2 O 3 ) And may include at least one selected from the group consisting of zinc (ZnS) and zirconium dioxide (ZrO 2 ), and nickel-chromium (50Ni-50Cr).
The automotive interior material according to the present invention may be formed by inserting a softening layer impregnated with an adhesive in a space between a surface layer and an intensifying stiffener layer so as to ensure flexibility and buffering property by a softening layer during curved surface molding of the finish material layer It is possible to prevent defects such as cracks or tears in the surface material layer at the edge bending portion.
Further, the automotive interior material according to the embodiment of the present invention does not need to form a separate adhesive layer because the flexible layer is formed as an integral structure in which the adhesive is impregnated on both sides of the flexible substrate, There is a structural advantage in that the peeling failure can be prevented in advance.
As a result, the automotive interior material according to the embodiment of the present invention has a curvature radius R of <5 and a maximum molding depth D of 6 to 12 mm, thereby achieving excellent moldability by improving the radius of curvature and the molding depth So that the degree of freedom of design can be improved and various designs can be applied.
Manufacturing method of automobile interior material
3 to 5 are process sectional views illustrating a method of manufacturing an automotive interior material according to an embodiment of the present invention.
3, after forming the finishing
At this time, thermocompression by a hot press is performed by inserting the laminated structure of the
Next, as shown in Fig. 4, a
The
As described above, the
Next, as shown in Fig. 5, a
The
Example
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
1. Manufacture of automotive interior materials
Example 1
A real wood surface layer having a thickness of 0.6 mm was prepared using a walnut seed. A 0.3 mm thick softened layer impregnated with a polyurethane adhesive was formed on the lower part of the real wood surface layer and a 0.5 mm thick nonwoven fabric made of a composite material was used as the strength reinforcing layer.
Next, the surface material layer, the softening layer and the strength reinforcing layer were thermocompression-bonded for 180 seconds at a temperature of 140 DEG C and a pressure of 30 kg / cm < 2 > using a hot press facility, : 7 mm to prepare a finishing material layer.
Subsequently, a base material layer previously injection-molded was placed in the lower part of the finishing material layer, followed by laminating by insert injection to prepare an automotive interior material.
Example 2
A car interior material was prepared in the same manner as in Example 1, except that the finishing material layer was formed by molding under conditions of radius of curvature (R) = 3 and maximum molding depth (D): 10 mm.
Example 3
A car interior material was prepared in the same manner as in Example 1, except that the finishing material layer was formed by molding under conditions of radius of curvature (R) = 2 and maximum molding depth (D): 10 mm.
Comparative Example 1
A real wood surface layer having a thickness of 0.6 mm was prepared using a walnut seed. A glue sheet having a thickness of 0.2 mm impregnated with a thermosetting adhesive agent was formed as an adhesive layer on the lower part of the real wood surface layer and then a nonwoven fabric having a thickness of 0.5 mm made of the composite material described in Example 1 was used as the strength reinforcing layer Respectively.
Next, the surface material layer, the adhesive layer and the strength reinforcing layer were thermocompression-bonded for 180 seconds at a temperature of 140 DEG C and a pressure of 30 kg / cm < 2 > using a hot press facility, To form a finishing material layer.
Subsequently, a base material layer previously injection-molded was placed in the lower part of the finishing material layer, followed by laminating by insert injection to prepare an automotive interior material.
Comparative Example 2
An automotive interior material was prepared in the same manner as in Comparative Example 1, except that the finishing material layer was formed by molding under conditions of a radius of curvature (R) = 3 and a maximum molding depth (D): 10 mm.
Comparative Example 3
An automotive interior material was prepared in the same manner as in Comparative Example 1, except that the finishing material layer was formed by molding under conditions of a radius of curvature (R) = 2 and a maximum molding depth (D): 10 mm.
2. Formability evaluation
Fig. 6 shows the results of evaluation of formability of an automotive interior material produced according to Example 1 and Comparative Example 1, and Fig. 7 shows the results of evaluation of moldability of an automotive interior material produced according to Examples 2 to 3 and Comparative Examples 2 to 3 The results of the evaluation are shown.
As shown in Fig. 6, in the case of Example 1, although the molding was performed under the condition of the curvature radius R = 2 and the maximum molding depth D: 7 mm, the edge portion of the finishing material layer was cracked and torn It can be confirmed that the smooth surface is maintained.
On the other hand, in the case of the comparative example 1, it can be confirmed that a crack is generated in a part of the edge part of the finishing material layer and is torn.
Particularly, as shown in Fig. 7, Example 2 molded with the radius of curvature R = 3 and the maximum molding depth D of 10 mm, the radius of curvature R = 2 and the maximum molding depth D: It can be confirmed that the edge portion of the finishing material layer retains a smooth surface without cracks or tears.
On the other hand, in Comparative Example 2 molded under the conditions of a radius of curvature R = 3 and a maximum molding depth D of 10 mm, and Comparative Example 3 molded under a condition of a radius of curvature R = 2 and a maximum molding depth D of 10 mm , It can be confirmed that a substantial part of the edge portion of the finishing material layer is torn.
As can be seen from the above experimental results, when the softening layer impregnated with the adhesive is inserted into the space between the surface material layer and the strength reinforcing material layer, flexibility and buffering property are ensured by the softening layer during the curved surface molding of the finishing material layer It is possible to prevent defects such as cracking or tearing of the surface layer in the edge bending portion.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. These changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.
100: car interior material 120: substrate layer
140: Finishing material layer 142: Strengthening layer
144: softening layer 146: surface layer
160: Surface coating layer
Claims (17)
A finishing material layer having a strength reinforcing layer formed on the base layer, a surface material layer formed on the strength reinforcing layer, and a softening layer impregnated with an adhesive interposed between the strength reinforcing layer and the surface material layer;
And an interior material for a vehicle.
The base layer
But are not limited to, polyamide, nylon, polycarbnate, acrylonitrile-butadiene-styrene, poluvinyl chloride, polystyrene, carbon fiber ), A glass fiber, a bakelite, a polyphenylene sulfide, a polypropylene, and a polyethylene.
The thickness of the strength-
0.4 ~ 0.6mm interior material for automobile.
The strength-
It is also possible to use polycarbonate, nylon, glass fiber, carbon fiber, nonwoven fabric, bakelite, polyphenylene sulfide, metal, fabric, rubber, and stone. < RTI ID = 0.0 > 1. < / RTI >
The thickness of the softening layer
0.05 to 0.5 mm in interior material for automobiles.
The softening layer
A flexible substrate,
Wherein the adhesive agent is impregnated on both sides of the flexible substrate.
The flexible substrate
An automotive interior material comprising at least one of nonwoven fabric, glass fiber paper, carbon fiber fabric, cellulose and pulp.
The adhesive
But are not limited to, polyurethane, polyamide, ethylene-vinyl acetate, polyvinyl acetate, phenol, melamine, urea, epoxy, But are not limited to, polyester, polyvinyl alcohol, acrylonitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), alkid, acetyl cellulose, nitro cellulose, Wherein the adhesive comprises at least one adhesive selected from the group consisting of hot melt thermoplastic polyurethane.
The thickness of the surface material layer
0.3 ~ 0.7mm interior material for automobile.
The surface material layer
The present invention relates to wood and at least one metal selected from the group consisting of aluminum, stainless steel, zinc, copper, carbon steel, alloy steel, brass and bronze, carbon fibers, carbon prepregs, An automotive interior material comprising at least one member selected from the group consisting of rubber, synthetic polymer film, and synthetic polymer sheet.
The automotive interior material
And a surface coating layer formed on the surface material layer.
The thickness of the surface coating layer
0.4 ~ 0.7mm interior material for automobile.
The surface coating layer
An automotive interior material comprising at least one selected from the group consisting of a synthetic resin coating material, an aqueous coating material, an oil based coating material, a fiber-based coating material, a natural resin coating material, a metal coating material, a metal coating material and a metal oxide coating material.
The finishing layer
An automotive interior material having a radius of curvature (R) < 5.
The finishing layer
Maximum molding depth (D): Automotive interior material with 6 to 12 mm.
(b) attaching an injection-molded base layer to the lower part of the finishing material layer by insert injection.
After the step (b)
(c) forming a surface coating layer by applying a paint treatment on the surface material layer.
Priority Applications (2)
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KR1020150077700A KR20160142427A (en) | 2015-06-02 | 2015-06-02 | Interior materials for automobiles and method of manufacturing the same |
PCT/KR2016/001722 WO2016195213A1 (en) | 2015-06-02 | 2016-02-22 | Automobile-use interior material and method for manufacturing same |
Applications Claiming Priority (1)
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KR1020150077700A KR20160142427A (en) | 2015-06-02 | 2015-06-02 | Interior materials for automobiles and method of manufacturing the same |
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KR20160142427A true KR20160142427A (en) | 2016-12-13 |
Family
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KR1020150077700A KR20160142427A (en) | 2015-06-02 | 2015-06-02 | Interior materials for automobiles and method of manufacturing the same |
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WO (1) | WO2016195213A1 (en) |
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WO2018131786A1 (en) * | 2017-01-13 | 2018-07-19 | 주식회사 아로텍 | Reinforced composite film and manufacturing method therefor |
WO2018147510A1 (en) * | 2017-02-09 | 2018-08-16 | 인탑스 주식회사 | Real wood film and method for manufacturing real wood injection product to which real wood film is applied |
KR20190051290A (en) * | 2017-11-06 | 2019-05-15 | 현대자동차주식회사 | Interior decoration material for vehicle having metallic effect |
US10596960B2 (en) | 2017-11-27 | 2020-03-24 | Hyudai Mobis Co., Ltd. | Transparent member for automobile interior parts |
KR20200067269A (en) * | 2018-12-03 | 2020-06-12 | 주식회사 화진 | Laminate sheet and Insert injection molding method using the same |
KR102223124B1 (en) | 2020-12-07 | 2021-03-04 | (주)유니크라미 | Eco-friendly adhesive and manufacturing method of automobile interior materials using them |
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KR20230000527A (en) * | 2021-06-24 | 2023-01-03 | (주)엘엑스하우시스 | Interior materials for vehicle and manufacturing method of the same |
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2015
- 2015-06-02 KR KR1020150077700A patent/KR20160142427A/en active Search and Examination
-
2016
- 2016-02-22 WO PCT/KR2016/001722 patent/WO2016195213A1/en active Application Filing
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KR20190051290A (en) * | 2017-11-06 | 2019-05-15 | 현대자동차주식회사 | Interior decoration material for vehicle having metallic effect |
US10596960B2 (en) | 2017-11-27 | 2020-03-24 | Hyudai Mobis Co., Ltd. | Transparent member for automobile interior parts |
KR20200067269A (en) * | 2018-12-03 | 2020-06-12 | 주식회사 화진 | Laminate sheet and Insert injection molding method using the same |
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