KR101921792B1 - Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet - Google Patents

Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet Download PDF

Info

Publication number
KR101921792B1
KR101921792B1 KR1020160058534A KR20160058534A KR101921792B1 KR 101921792 B1 KR101921792 B1 KR 101921792B1 KR 1020160058534 A KR1020160058534 A KR 1020160058534A KR 20160058534 A KR20160058534 A KR 20160058534A KR 101921792 B1 KR101921792 B1 KR 101921792B1
Authority
KR
South Korea
Prior art keywords
sheet
thermoplastic polyolefin
protective film
ethylene
layer
Prior art date
Application number
KR1020160058534A
Other languages
Korean (ko)
Other versions
KR20170127827A (en
Inventor
이윤호
정용배
Original Assignee
(주)엘지하우시스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)엘지하우시스 filed Critical (주)엘지하우시스
Priority to KR1020160058534A priority Critical patent/KR101921792B1/en
Priority to PCT/KR2017/003538 priority patent/WO2017195981A1/en
Publication of KR20170127827A publication Critical patent/KR20170127827A/en
Application granted granted Critical
Publication of KR101921792B1 publication Critical patent/KR101921792B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811—Multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • 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
    • B32B27/065—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 foam
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
    • B29K2715/003—Cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • 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
    • B32B2274/00—Thermoplastic elastomer material
    • 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
    • B32B2451/00—Decorative or ornamental articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to an interior sheet provided with a protective film layer for preventing a foam layer from being broken by providing a protective film layer on the bottom surface of an interior sheet which is in direct contact with a hot injection product during injection molding, ≪ / RTI >
To achieve this, an interior sheet 100 according to the present invention comprises a thermoplastic polyolefin sheet layer 110; A foam layer 120 formed on the bottom surface of the thermoplastic polyolefin sheet layer 110; And a protective film layer (130) formed on the bottom surface of the foam layer (120).
A method for manufacturing an automobile interior material (1) using an interior sheet (100) includes the steps of: preheating the interior sheet (100); Inserting the preheated interior sheet into a mold having a grain, and preforming the interior sheet into a predetermined shape; And injection molding the injection molding 200 on the bottom surface of the protective film layer 130 of the preformed interior sheet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior sheet having a protective film layer and a method for manufacturing an automobile interior material using the same,

The present invention relates to an interior sheet and a method of manufacturing an automobile interior material using the same. More specifically, the present invention relates to a method for manufacturing an automobile interior material using an interior sheet, which prevents a foam layer from melting by providing a protective film layer on the bottom surface of an interior sheet, And a method for manufacturing an automobile interior material using the interior sheet.

In general, automobile interior materials such as dashboard, garnish, and door trim are composed of an interior sheet used as a skin material and a hard synthetic resin molded article.

Such an interior sheet is made of materials such as PVC, TPO, PP, PE, and PU. In recent years, thermoplastic polyolefin elastomer (TPO) sheets have been widely used in consideration of environment friendliness and light weight.

Specifically, the conventional interior sheet is a laminated structure in which a foil layer is attached to the bottom of the TPO sheet. Examples of molding methods for producing such a sheet as an interior material include vacuum molding, injection molding, and wrapping.

In the past, IMG (In Mold Grain) vacuum molding method, which is a method of transferring emboss to the sheet surface, was mainly used. This vacuum forming method has heretofore been filed in the prior art as a registered patent application No. 10-1510670.

More specifically, the IMG vacuum forming method is a method in which the emboss is transferred, the sheet is preheated at a surface temperature of at least 200 DEG C, and then subjected to vacuum forming.

That is, an adhesive is applied to the surface of a base material previously prepared through injection molding and mounted on a metal mold. Then, the interior sheet is preheated and inserted into a metal mold to which grains are imparted.

However, there is a concern that harmful substances such as volatile organic compounds (VOC) may be generated by attaching the interior sheet to the surface of the injection-molded base material through an adhesive agent in the conventional IMG vacuum molding method .

In order to prevent the generation of such harmful substances, a method has been proposed in which a substrate is directly injection-molded on the bottom surface of an interior sheet without using an adhesive. However, this method has a problem in that the foam layer laminated on the bottom of the interior sheet melts or bursts due to the high temperature of the molten molded article injection molding.

The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a protective film layer for preventing the foam layer from being broken by providing a protective film layer on the bottom surface of the inner sheet, And an object of the present invention is to provide a method of manufacturing an automobile interior material using the same.

According to an aspect of the present invention, there is provided an interior sheet provided with a protective film layer, comprising: a thermoplastic polyolefin sheet layer; A foam layer formed on a bottom surface of the thermoplastic polyolefin sheet layer; And a protective film layer formed on the bottom surface of the foam layer.

In this case, the thermoplastic polyolefin sheet layer composition further comprises a thermoplastic elastomer.

The thermoplastic polyolefin resin is characterized in that any one or two or more of polyethylene, polypropylene, polybutene, polymethylpentene, and ethylene-propylene-butene copolymer are combined.

The thermoplastic elastomer is characterized in that any one or two or more of ethylene-propylene rubber, ethylene-octene rubber, styrene-ethylene-butylene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer are combined .

Further, the foam layer is characterized by containing any one or two or more of thermoplastic polyolefin, polypropylene, and polyethylene.

The protective film layer composition may optionally include one or more of a thermoplastic polyolefin resin, a filler, an additive, and a thermoplastic elastomer.

Further, the thermoplastic polyolefin sheet layer, the foam layer and the protective film layer are laminated through thermal fusion.

In the method for manufacturing an automobile interior material according to the first embodiment, the step of inserting the interior sheet into a mold; And injection molding an injection mold on the bottom surface of the protective film layer of the inner sheet inserted into the mold.

In the method for manufacturing an automobile interior material according to the second embodiment, preheating the interior sheet; Inserting the preheated interior sheet into a mold; And injection molding an injection mold on the bottom surface of the protective film layer of the inner sheet inserted into the mold.

In the method for manufacturing an automobile interior material according to the third embodiment, preheating the interior sheet; Inserting the preheated interior sheet into a mold having a grain, and preforming the interior sheet into a predetermined shape; And injection molding an injection molding on the bottom surface of the protective film layer of the preformed interior sheet.

According to the present invention, it is possible to prevent the foam layer from being broken by providing a protective film layer on the bottom surface of the inner sheet which is in direct contact with the high temperature injection material during injection molding.

In addition, since the interior sheet according to the present invention is laminated integrally through thermal fusion without using an adhesive, the manufacturing process can be reduced and the manufacturing cost can be reduced. In addition, by injecting an injection product on the bottom surface of the interior sheet, Can be prevented.

1 is a side sectional view showing a laminated structure of an interior sheet provided with a protective film layer according to the present invention,
FIG. 2 is a flowchart showing a manufacturing process of an automobile interior material using an interior sheet according to the present invention,
3 is a side cross-sectional view of an automobile interior material manufactured using the interior sheet according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals as in the drawings denote the same elements in the drawings, unless they are indicated on other drawings.

1 is a side sectional view showing a laminated structure of an interior sheet provided with a protective film layer according to the present invention.

1, an interior sheet 100 having a protective film layer according to an exemplary embodiment of the present invention includes a thermoplastic polyolefin sheet layer 110, a foam layer 120, a protective film layer 130, Are stacked.

The configuration of the present invention will be described in detail as follows.

The thermoplastic polyolefin sheet layer 110 constitutes the surface of the interior sheet 100.

Specifically, the composition for producing the thermoplastic polyolefin sheet layer 110 includes a thermoplastic polyolefin resin, a filler, and an additive. In addition, a thermoplastic elastomer may optionally be further included to reinforce melt strength, impact resistance and flexibility.

In this case, the thermoplastic polyolefin resin may be any one or a combination of two or more of polyethylene, polypropylene, polybutene, polymethylpentene, and ethylene-propylene-butene copolymer.

The thermoplastic elastomer may be at least one selected from the group consisting of ethylene propylene rubber (EPR), ethylene octene rubber (EOR), styrene-ethylene-butylene-styrene copolymer (SEBS) and styrene- (SEPS) or a combination of two or more of them.

In this case, the blending ratio of the thermoplastic polyolefin resin to the thermoplastic elastomer is preferably in the range of 100: 1 to 40, in order to maintain moldability and physical properties as an interior material.

The foam layer 120 is formed on the bottom surface of the thermoplastic polyolefin sheet layer 110 and serves to impart a predetermined cushioning feeling to the interior sheet 100.

Preferably, the foam layer 120 may include any one or more of thermoplastic polyolefin elastomer, polypropylene, and polyethylene.

A protective film layer 130 is formed on the bottom surface of the foam layer 120. The protective film layer 130 may be deformed such that the foam layer 120 is melted or popped by the high temperature injection resin C injected when the injection molding 200 is integrally injection molded on the bottom surface of the interior sheet 100 It prevents. That is, the protective film layer 130 serves as a kind of barrier.

Here, the protective film layer 130 may be made of the same material as the thermoplastic polyolefin sheet layer 110. Specifically, the protective film layer 130 may include any one or more of thermoplastic polyolefin, polypropylene, and polyethylene. Of course, the present invention is not limited to such a material but may be applied to various materials as long as it can prevent breakage of the foam layer 120 during injection molding.

Meanwhile, the thermoplastic polyolefin sheet layer 110, the foam layer 120, and the protective film layer 130 constituting the interior sheet 100 are integrally laminated through thermal fusion.

In this case, when the plurality of the layers 110, 120, and 130 are stacked through an adhesive agent as in the prior art, a volatile organic compound (VOC) may be generated.

Hereinafter, the manufacturing process of the automobile interior material 1 using the interior sheet 100 according to the present invention will be described.

FIG. 2 is a flow chart showing a manufacturing process of an automobile interior material using the interior sheet according to the present invention, and FIG. 3 is a side sectional view of an automobile interior material manufactured using the interior sheet according to the present invention.

First, as shown in FIG. 2 (a), the interior sheet 100 made of a plurality of laminated structures is preheated through a predetermined heating process.

2 (b) to 2 (d), the preheated interior sheet 100 is inserted into a press mold having a grain, and then a preforming process is performed in a predetermined shape.

Then, as shown in Fig. 2 (e), the preformed interior sheet 100 is put into a mold for injection molding. In this case, the injection sheet 200 is disposed on the protective film layer 130 of the inner sheet 100.

For example, in the present invention, the preforming process of the interior sheet 100 and the injection process of the injection mold 200 are separately performed in different molds. However, the present invention is not limited to this, The injection molding can be changed and applied in a sequential manner.

The molten injection resin C is injected into the bottom surface of the protective film layer 130 of the interior sheet 100 as shown in Figure 2F to form an injection molded article 200 are integrally injection-molded. Through this process, the manufacture of the automotive interior material 1 as shown in Fig. 2 (g) is completed.

Referring to FIG. 3, in this case, as the injection mold 200 formed through the high-temperature injection resin C abuts against the bottom surface of the protective film layer 130, the molded foam layer 120 deposited thereon has a considerable influence Do not give. Accordingly, it is possible to prevent the foam layer 120 from being broken or melted during injection molding using a high-temperature injection resin C as in the conventional art.

In this case, the injection molding 200 is injection-molded on the bottom surface of the interior sheet 100 having the plurality of layers 110, 120, and 130 laminated through thermal fusion as in the present invention, (VOC, Volatile Organic Compound) can be prevented.

The inner sheet 100 according to the present invention is formed by stacking a plurality of layers 110, 120, and 130 through thermal fusion without using an adhesive as in the prior art, ) Can be integrally formed, thereby reducing the number of manufacturing steps, thereby reducing manufacturing costs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Particularly, in the present invention, the interior sheet 100 is preheated, and the preheated interior sheet 100 is preformed into a predetermined shape. Thereafter, the molded article 200 ) Is injection-molded, an embodiment of the automobile interior material manufacturing method has been described. However, the present invention is not limited thereto.

In other words, either or both of the step of preheating the interior sheet 100 or the step of preforming the interior sheet 100 in the mold may be omitted, and the protective film of the interior sheet 100 The automobile interior material may be manufactured by molding the molded article 200 directly on the layer 130.

1: Car interior material 100: Interior sheet
110: thermoplastic polyolefin sheet layer 120: foam layer
130: protective film layer 200:
C: injection resin

Claims (11)

delete delete delete delete delete delete delete delete From top to bottom, a thermoplastic polyolefin sheet layer 110; A foam layer 120; And a protective film layer (130) are integrally laminated through thermal welding; inserting an inner sheet (100) into a mold; And
And injection molding the injection material (200) on the bottom surface of the protective film layer (130) of the interior sheet (100) inserted into the mold,
Wherein the composition for preparing the thermoplastic polyolefin sheet layer 110 comprises a thermoplastic polyolefin resin, a thermoplastic elastomer, a filler, and an additive, wherein the thermoplastic polyolefin resin is at least one selected from the group consisting of polyethylene, polypropylene, polybutene, polymethylpentene, ethylene- Wherein the thermoplastic elastomer is at least one selected from the group consisting of ethylene-propylene rubber, ethylene-octene rubber, styrene-ethylene-butylene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer Any one or a combination of two or more thereof,
The weight ratio of the thermoplastic polyolefin resin to the thermoplastic elastomer is 100: 1-40,
The foam layer 120 includes any one or two or more of thermoplastic polyolefin elastomer, polypropylene, and polyethylene,
Wherein the composition for forming the protective film layer (130) comprises at least one of a thermoplastic polyolefin resin, a filler, an additive, and a thermoplastic elastomer.
From top to bottom, a thermoplastic polyolefin sheet layer 110; A foam layer 120; And the protective film layer (130) are integrally laminated through thermal fusion;
Inserting the preheated interior sheet into a mold; And
And injection molding the injection molding (200) on the bottom surface of the protective film layer (130) of the interior sheet inserted into the mold,
Wherein the composition for preparing the thermoplastic polyolefin sheet layer 110 comprises a thermoplastic polyolefin resin, a thermoplastic elastomer, a filler, and an additive, wherein the thermoplastic polyolefin resin is at least one selected from the group consisting of polyethylene, polypropylene, polybutene, polymethylpentene, ethylene- Wherein the thermoplastic elastomer is at least one selected from the group consisting of ethylene-propylene rubber, ethylene-octene rubber, styrene-ethylene-butylene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer Any one or a combination of two or more thereof,
The weight ratio of the thermoplastic polyolefin resin to the thermoplastic elastomer is 100: 1-40,
The foam layer 120 includes any one or two or more of thermoplastic polyolefin elastomer, polypropylene, and polyethylene,
Wherein the composition for forming the protective film layer (130) comprises at least one of a thermoplastic polyolefin resin, a filler, an additive, and a thermoplastic elastomer.
From top to bottom, a thermoplastic polyolefin sheet layer 110; A foam layer 120; And the protective film layer (130) are integrally laminated through thermal fusion;
Inserting the preheated interior sheet into a mold having a grain, and preforming the interior sheet into a predetermined shape; And
Molding the injection molded article (200) on the bottom surface of the protective film layer (130) of the preformed interior sheet,
Wherein the composition for preparing the thermoplastic polyolefin sheet layer 110 comprises a thermoplastic polyolefin resin, a thermoplastic elastomer, a filler, and an additive, wherein the thermoplastic polyolefin resin is at least one selected from the group consisting of polyethylene, polypropylene, polybutene, polymethylpentene, ethylene- Wherein the thermoplastic elastomer is at least one selected from the group consisting of ethylene-propylene rubber, ethylene-octene rubber, styrene-ethylene-butylene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer Any one or a combination of two or more thereof,
The weight ratio of the thermoplastic polyolefin resin to the thermoplastic elastomer is 100: 1-40,
The foam layer 120 includes any one or two or more of thermoplastic polyolefin elastomer, polypropylene, and polyethylene,
Wherein the composition for forming the protective film layer (130) comprises at least one of a thermoplastic polyolefin resin, a filler, an additive, and a thermoplastic elastomer.
KR1020160058534A 2016-05-13 2016-05-13 Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet KR101921792B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020160058534A KR101921792B1 (en) 2016-05-13 2016-05-13 Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet
PCT/KR2017/003538 WO2017195981A1 (en) 2016-05-13 2017-03-31 Interior sheet including protective film layer and method of manufacturing automobile interior material using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160058534A KR101921792B1 (en) 2016-05-13 2016-05-13 Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet

Publications (2)

Publication Number Publication Date
KR20170127827A KR20170127827A (en) 2017-11-22
KR101921792B1 true KR101921792B1 (en) 2018-11-23

Family

ID=60267322

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160058534A KR101921792B1 (en) 2016-05-13 2016-05-13 Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet

Country Status (2)

Country Link
KR (1) KR101921792B1 (en)
WO (1) WO2017195981A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920823B1 (en) 2008-08-26 2009-10-08 엔브이에이치코리아(주) Composite panel for headliner using non-crosslinked polypropylene foam sheet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980069364A (en) * 1997-02-27 1998-10-26 이봉주 High heat resistant polyolefin foam composition and method for manufacturing automobile interior using same
KR20070096565A (en) * 2006-03-27 2007-10-02 한일이화주식회사 Roof material for vehicle
KR20130126156A (en) * 2012-05-11 2013-11-20 현대자동차주식회사 Softpad and manufacturing method thereof for vehicle
KR101720714B1 (en) * 2014-05-23 2017-03-30 덕양산업 주식회사 Manufacturing method of light weigt automotive interior parts using polyolefin composites and automotive interior parts by the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920823B1 (en) 2008-08-26 2009-10-08 엔브이에이치코리아(주) Composite panel for headliner using non-crosslinked polypropylene foam sheet

Also Published As

Publication number Publication date
KR20170127827A (en) 2017-11-22
WO2017195981A1 (en) 2017-11-16

Similar Documents

Publication Publication Date Title
JP6242580B2 (en) Composite molded body
US6821465B1 (en) Door trim panel with integral soft armrest pad and process for manufacturing same
US11951715B2 (en) Film laminate and interior trim part for motor vehicles
JP6701783B2 (en) Multilayer foamed sheet having a non-foamed layer containing a long-chain branched polypropylene resin composition
EP2170717B1 (en) Method of manufacturing a packaging with iml barrier film in combination with an oxygen scavenger
EP0466179B1 (en) Multilayer molded article and method for producing the same
CS6392A3 (en) Flexible packing material
CN114423610A (en) Packaging body
JP2006516937A (en) Foamed article, especially trim element for automobile interior, and manufacturing method thereof
KR101921792B1 (en) Interior sheet having a protect film layer and manufacturing method of an automobile interior material using the interior sheet
CN105008106A (en) Method for producing plastic molded part, and injection-molding machine
KR101926221B1 (en) Interior sheet for an automobile, a manufacturing method of an automobile interior material using the interior sheet and the automobile interior material manufactured by the method
TWI761209B (en) Multi-layered molded article with excellent adhesiveness and electrical conductivity, and electronic products transported thereby
CN112203901A (en) Decorative sheet
KR101364437B1 (en) Manufacturing method of a composite substrate for an automobile
JP2780117B2 (en) Manufacturing method of hollow molded body
EP2011739A1 (en) Injection moulded packaging article with a barrier layer
JP4388853B2 (en) Method for producing thermoplastic resin foam molded article
JP4344651B2 (en) Method for producing thermoplastic resin foam molded article
JP3005932B2 (en) Molding method for resin products
JP3599838B2 (en) Method for manufacturing multilayer products
EP3429835B1 (en) Method for producing an inner trim panel for a motor vehicle
JP2007090566A (en) Molding method of skin laminated resin molded product
JP2000263576A (en) Production of multilayered foamed molded product
JP2002160251A (en) Method for manufacturing trim material for vehicle

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)
GRNT Written decision to grant