KR20160063781A - Light weight multilayer structure using natural fiber and producting method there of - Google Patents

Light weight multilayer structure using natural fiber and producting method there of Download PDF

Info

Publication number
KR20160063781A
KR20160063781A KR1020140167500A KR20140167500A KR20160063781A KR 20160063781 A KR20160063781 A KR 20160063781A KR 1020140167500 A KR1020140167500 A KR 1020140167500A KR 20140167500 A KR20140167500 A KR 20140167500A KR 20160063781 A KR20160063781 A KR 20160063781A
Authority
KR
South Korea
Prior art keywords
felt
natural fibers
bio
resin layer
thermosetting resin
Prior art date
Application number
KR1020140167500A
Other languages
Korean (ko)
Inventor
김동원
김명주
Original Assignee
주식회사 서연이화
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 주식회사 서연이화 filed Critical 주식회사 서연이화
Priority to KR1020140167500A priority Critical patent/KR20160063781A/en
Publication of KR20160063781A publication Critical patent/KR20160063781A/en

Links

Images

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
    • B32B27/12—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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer

Abstract

The present invention relates to a method for manufacturing a lightweight multi-layered structure using natural fibers having a light weight and a high strength to be equipped with an automobile interior material, a simple manufacturing process and a highly environmentally friendly structure. The method for manufacturing a lightweight multilayer structure using natural fibers according to the present invention comprises the steps of: fabricating a felt using natural fibers or natural fibers and synthetic fibers; forming a biothermosetting resin layer on both sides of the felt; And heating and pressing the formed felt to form the felt.

Description

TECHNICAL FIELD [0001] The present invention relates to a lightweight multilayer structure using natural fibers and a manufacturing method thereof,

The present invention relates to a lightweight multi-layered structure using natural fibers and a method of manufacturing the same, and more particularly, to a lightweight multi-layered structure that can be used for interior trim of automobile door trims, rheels, headliners and the like, and a manufacturing method thereof.

Structures for automobile interior materials consist of core layers, reinforcing layers, and skin layers. Typical examples of multi-layer structures currently used include felt felts, resin felts, natural fiber reinforced boards, glass fiber / PU foams, natural fiber sheets / polypropylene foam have.

Among them, the natural fiber reinforced board is formed by pre-heating / cold-pressing the natural fiber and the synthetic fiber by needle punching, and the natural fiber sheet / polypropylene foam multi- Thinned, and laminated with a polypropylene foam. In this regard, Korean Patent Laid-Open No. 10-2013-0001414 (entitled "Environmentally lightweight multilayer structure and method for manufacturing the same") has been filed.

On the other hand, the natural fiber reinforced board has a light weight and high rigidity compared to the conventional injection resin, but has a limitation in securing the lightening effect. Further, synthetic resin is used for improving rigidity and moldability.

In addition, the natural fiber sheet / polypropylene foam multi-layer structure requires adhesive resin coating fixation to reinforce the reinforcement layer strength, and a thermal lamination process is further required for effective lamination of the core layer and the reinforcement layer. That is, the manufacturing process of the natural fiber sheet / polypropylene foam multi-layer structure is complicated, resulting in an increase in production cost.

Korean Patent Laid-Open No. 10-2013-0001414 (Title: Environmentally lightweight multilayered structure and method for manufacturing the same)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a natural fiber having light weight and high strength, And a method of manufacturing the same.

The method for manufacturing a lightweight multi-layer structure using natural fibers according to the present invention comprises the steps of: fabricating a felt using natural fiber or natural fiber and synthetic fiber; forming a biothermal thermosetting resin layer on both sides of the felt; And heating and pressing the felt formed with the resin layer to form the felt.

According to the present invention, it is preferable that the method further includes a step of laminating a skin material on one side of the felt before forming the biothermal thermosetting resin layer on the felt.

Further, according to the present invention, it is preferable that the felt comprises two or more kinds of natural fibers.

According to the present invention, the bio-thermosetting resin is preferably any one of a bio-polyol, a bioisocyanate, a bio-epoxy, and a bio-acrylic resin.

The lightweight multilayer structure using natural fibers according to the present invention is characterized by comprising two or more kinds of natural fibers or a felt composed of natural fibers and synthetic fibers, and a bio-thermosetting resin layer laminated on both sides of the felt.

According to the present invention, it is preferable to further include a nonwoven fabric to be fastened to one surface of the felt.

According to the present invention, all of the components of the lightweight multilayer structure (particularly, when the felt is made of two or more kinds of different natural fibers) are made of only natural materials, thereby maximizing the eco-friendly effect such as CO2 reduction.

Further, since the resin itself applied to the felt is a biocomponent, the bonding force between the natural fiber and the resin becomes better, and the strength of the multilayer structure is thereby greatly improved.

Further, by bonding the PET skin material to the felt and applying and molding the bio-thermosetting resin, the surface pattern and feel can be enhanced, and the molding process can be simplified to one molding process.

1 is a flow chart of a method for manufacturing a lightweight multi-layer structure using natural fibers according to an embodiment of the present invention.
FIG. 2 is a schematic view of a multi-layered structure manufactured by a method for manufacturing a lightweight multi-layered structure using natural fibers according to an embodiment of the present invention.
3 is a flowchart of a method for manufacturing a lightweight multilayer structure using natural fibers according to another embodiment of the present invention.
FIG. 4 is a schematic view of a multi-layered structure manufactured by a method for manufacturing a lightweight multi-layered structure using natural fibers according to another embodiment of the present invention.

Hereinafter, a lightweight multilayer structure according to a preferred embodiment of the present invention and a method of manufacturing the same will be described with reference to the accompanying drawings.

FIG. 1 is a flow chart of a method for manufacturing a lightweight multilayer structure using natural fibers according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a multilayer structure fabricated by a method for manufacturing a lightweight multilayer structure using natural fibers according to an embodiment of the present invention. Fig.

Referring to FIGS. 1 and 2, a method M100 for fabricating a lightweight multi-layered structure using natural fibers according to the present invention includes fabricating a felt (step S10), a skin material binding step S20, a resin layer forming step S30 And a molding step S40.

In the felt producing step S10, the felt 10 is made of natural fibers or natural fibers and synthetic fibers. In this case, natural fibers such as jute, kenaf, sisal, hemp, flax, bamboo and the like may be used, and it is preferable to mix two or more different natural fibers. This is because the strength of the felt 10 is improved as natural fibers having different strengths or fiber diameters are entangled with each other. When the felt is made of natural fibers and synthetic fibers, polypropylene and the like may be used as synthetic fibers.

In the skin re-fastening step S20, the skin material 20 is laminated on one side of the felt 10. The skin material 20 may be a PET nonwoven fabric or the like and the skin material 20 may be bonded to the felt 10 through needle punching while the skin material 20 is laminated on the felt 10. [ .

In the resin layer forming step (S30), a resin layer is formed on both sides of the felt 10, in particular, in this embodiment, the biothermal thermosetting resin layer 30 is formed. More specifically, when the thermosetting bio-resin is applied to both surfaces of the felt 10 by a spraying method or when the thermosetting bio-resin is impregnated into the felt 10, the resin layer 30 is formed on both surfaces of the felt. The thermosetting bio-resin may be a bio-polyol, a bioisocyanate, a bio-epoxy, or a bio-acrylic resin. For reference, bio-thermosetting resin means a thermosetting resin made from a biomaterial such as a plant, and in recent years, the importance of environmental friendliness has been emphasized and a lot of research and development have been made.

In the molding step S40, the felt having the resin layer formed thereon is heated and pressed to be molded. More specifically, the felt is simultaneously heated while being pressed using a metal mold. At this time, the mold itself is provided with heat rays, and the felt can be heated through the mold. Then, the bio-thermosetting resin is cured and molded in the shape of the mold.

2, a lightweight multi-layered structure using natural fibers made of felt 10, a skin material 20 bonded to one side of the felt, and a resin layer 30 formed on both sides of the felt, A structure can be manufactured.

According to the present invention, all of the components of the lightweight multilayer structure (particularly, when the felt is made of two or more kinds of different natural fibers) are made of only natural materials, thereby maximizing the eco-friendly effect such as CO2 reduction.

Further, since the resin itself applied to the felt is a biocomponent, the bonding force between the natural fiber and the resin becomes better, and the strength of the multilayer structure is thereby greatly improved.

In addition, by bonding the PET skin material to the felt and applying and molding the bio-thermosetting resin, the surface pattern and feel can be enhanced, and the molding process can be simplified to one molding process.

FIG. 3 is a flow chart of a method for manufacturing a lightweight multilayer structure using natural fibers according to another embodiment of the present invention. FIG. 4 is a cross-sectional view of a multilayer structure fabricated by a method for manufacturing a lightweight multilayer structure using natural fibers according to another embodiment of the present invention Fig.

3 and 4, a method M200 for fabricating a lightweight multi-layer structure using natural fibers according to the present embodiment includes fabricating a felt S110, forming a resin layer S120, ), And the forming step S140.

In the felt manufacturing step (S110), felt is made of natural fibers or natural fibers and synthetic fibers. In this case, natural fibers such as jute, kenaf, sisal, hemp, flax, bamboo and the like may be used, and it is preferable to mix two or more different natural fibers. This is because the strength of the felt is improved as natural fibers having different strengths or fiber diameters are entangled with each other. When the felt is made of natural fibers and synthetic fibers, polypropylene and the like may be used as synthetic fibers.

In the resin layer forming step S120, the resin layer 120 is formed on both sides of the felt 110. In this embodiment, a biothermically thermosetting resin layer is formed. More specifically, when a thermosetting bio-resin is applied to both surfaces of a felt by a spraying method or when a felt is impregnated with a thermosetting bio-resin, a resin layer is formed on both surfaces of the felt.

In the skin reattaching step S130, the skin material 130, for example, a PET nonwoven fabric, is attached (laminated) to the resin layer.

In the forming step S140, the felt having the skin material is heated and pressed to form the felt. More specifically, the felt is simultaneously heated while being pressed using a metal mold. At this time, the mold itself is provided with heat rays, and the felt can be heated through the mold. Then, the bio-thermosetting resin is cured and molded in the shape of the mold.

As shown in Fig. 4, the resin layer 120 formed on both sides of the felt, the skin material 130 bonded to one surface of the resin layer, and the lightweight multi- A structure can be manufactured.

On the other hand, the fabric flow such as TPO or PVC sheet can be obtained by placing the molded multi-layer structure on a vacuum molding apparatus, heating the fabric flow and stacking the multi-layer structure on the multi-layer structure, Can be combined.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

M100 ... Lightweight multi-layer structure manufacturing method using natural fiber
S10 ... Felt making step S20 ... Skin material refining step
S30 ... resin layer forming step S40 ... molding step
100 ... Lightweight multilayer structure using natural fibers
10 ... felt 20 ... skin material
30 ... resin layer

Claims (7)

Preparing a felt by using natural fibers or natural fibers and synthetic fibers;
Forming a bio-thermosetting resin layer on both sides of the felt; And
And heating and pressing the felt with the bio-thermosetting resin layer formed thereon to form a felt. The method for manufacturing a lightweight multi-layer structure using natural fibers. The method according to claim 1,
Further comprising laminating a skin material on one surface of the felt before forming the bio-thermosetting resin layer on the felt. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
Further comprising laminating a skin material on the bio-thermosetting resin layer before molding the felt. ≪ Desc / Clms Page number 20 > The method according to claim 1,
Wherein the felt comprises two or more kinds of natural fibers. 5. The method of claim 4,
Wherein the bio-thermosetting resin is any one of a bio-polyol, a bioisocyanate, a bio-epoxy, and a bio-acrylic resin. Two or more kinds of natural fibers or felts composed of natural fibers and synthetic fibers; And
And a bio-thermosetting resin layer laminated on both sides of the felt. The method according to claim 6,
And a non-woven fabric fastened to one surface of the felt.
KR1020140167500A 2014-11-27 2014-11-27 Light weight multilayer structure using natural fiber and producting method there of KR20160063781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140167500A KR20160063781A (en) 2014-11-27 2014-11-27 Light weight multilayer structure using natural fiber and producting method there of

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140167500A KR20160063781A (en) 2014-11-27 2014-11-27 Light weight multilayer structure using natural fiber and producting method there of

Publications (1)

Publication Number Publication Date
KR20160063781A true KR20160063781A (en) 2016-06-07

Family

ID=56192868

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140167500A KR20160063781A (en) 2014-11-27 2014-11-27 Light weight multilayer structure using natural fiber and producting method there of

Country Status (1)

Country Link
KR (1) KR20160063781A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180036056A (en) * 2016-09-30 2018-04-09 주식회사 서연이화 Automotive interior material and method for manufacturing same
KR20180036055A (en) * 2016-09-30 2018-04-09 주식회사 서연이화 Multilayer structure for a vehicle ceiling material and method for manufacturing same
KR20180045552A (en) * 2016-10-26 2018-05-04 주식회사 서연이화 Multi-layer structure for car interior decoration and manufacturing method thereof
KR102187819B1 (en) * 2019-10-30 2020-12-08 주식회사 서연이화 Composite materials having natural fibre for interior parts of vehicle, and method for manufacturing the same
KR102187800B1 (en) * 2019-10-30 2020-12-08 주식회사 서연이화 Composite materials having natural fibre for interior parts of vehicle, and method for manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130001414A (en) 2011-06-27 2013-01-04 한일이화주식회사 Echo-friendly light weight multilayer structure and production method there of

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130001414A (en) 2011-06-27 2013-01-04 한일이화주식회사 Echo-friendly light weight multilayer structure and production method there of

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180036056A (en) * 2016-09-30 2018-04-09 주식회사 서연이화 Automotive interior material and method for manufacturing same
KR20180036055A (en) * 2016-09-30 2018-04-09 주식회사 서연이화 Multilayer structure for a vehicle ceiling material and method for manufacturing same
KR20180045552A (en) * 2016-10-26 2018-05-04 주식회사 서연이화 Multi-layer structure for car interior decoration and manufacturing method thereof
KR102187819B1 (en) * 2019-10-30 2020-12-08 주식회사 서연이화 Composite materials having natural fibre for interior parts of vehicle, and method for manufacturing the same
KR102187800B1 (en) * 2019-10-30 2020-12-08 주식회사 서연이화 Composite materials having natural fibre for interior parts of vehicle, and method for manufacturing the same

Similar Documents

Publication Publication Date Title
JP5947868B2 (en) Lightweight multilayer composite substrate and method for producing the same
KR101974469B1 (en) Deep draw composites and methods of using them
CA2951862C (en) Structure with honeycomb core
KR20160063781A (en) Light weight multilayer structure using natural fiber and producting method there of
KR20060134097A (en) Composite part
JP2014508055A (en) Laminated plate having bending rigidity, molded product from the laminated plate, manufacturing method thereof and manufacturing method thereof
US20160347024A1 (en) Material composition for the production of a stiffening member for lightweight construction, method for producing a stiffening member for lightweight construction and stiffening member for lightweight construction
KR101491129B1 (en) Lightweight multi-layer and method for making the same
KR101567772B1 (en) High-strength, light-weight multilayered car interior substrate
KR20090064837A (en) Sandwitch panel for vehicle
KR101655615B1 (en) Dash pad for vehicle
CN107471690B (en) Natural composite material multilayer structure and manufacturing method thereof
US20180093463A1 (en) Composite material and method of manufacturing vehicle interior material using the same
US20040235377A1 (en) Vehicle interior trim component of basalt fibers and polypropylene binder and method of manufacturing the same
CN113382848A (en) Composite laminated resin and fiberglass structure
KR102317515B1 (en) A sandwich panel and a manufacturing method thereof
JP6041378B2 (en) Method for manufacturing ceiling interior material for vehicle
KR101896624B1 (en) Multilayer structure for a vehicle ceiling material and method for manufacturing same
KR20040041025A (en) Process for manufacturing a dressing for inner linings
CN112810263A (en) Composite material for vehicle interior trim parts and manufacturing method thereof
KR102317518B1 (en) A sandwich panel and a manufacturing method thereof
JP4971102B2 (en) Molded ceiling for vehicle and method for manufacturing the same
JP2008149604A (en) Decoratively shaped object, decoratively shaped object for molding base material, decoratively molded object and manufacturing method of them
US10751984B2 (en) Method of bonding a thermoplastic component to a carpeted component and the carpeted component to a cellulose-based core in a single pressing step
KR102051595B1 (en) Sandwich component

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application