JPH0361027A - Preparation of interior material for car - Google Patents
Preparation of interior material for carInfo
- Publication number
- JPH0361027A JPH0361027A JP1197822A JP19782289A JPH0361027A JP H0361027 A JPH0361027 A JP H0361027A JP 1197822 A JP1197822 A JP 1197822A JP 19782289 A JP19782289 A JP 19782289A JP H0361027 A JPH0361027 A JP H0361027A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- mat
- sheet
- laminate
- resin sheet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims description 47
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 239000004088 foaming agent Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000012784 inorganic fiber Substances 0.000 claims description 19
- 239000006260 foam Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 13
- 239000003365 glass fiber Substances 0.000 abstract description 9
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004604 Blowing Agent Substances 0.000 description 3
- 208000035824 paresthesia Diseases 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- JXCZUKLUCDGXHR-UHFFFAOYSA-N N(=O)C(=CC=CC)N=O Chemical compound N(=O)C(=CC=CC)N=O JXCZUKLUCDGXHR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1228—Joining preformed parts by the expanding 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/586—Moulds with a cavity increasing in size during foaming
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は熱成形性の優れた内装材特に、自動車の天井材
として好適に使用される自動車用内装材の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interior material with excellent thermoformability, and particularly to a method for manufacturing an interior material for an automobile that is suitably used as a ceiling material for an automobile.
〔従来の技術）
従来、自動車の内装材の一つである成形天井内装材の基
材としては、ガラス線維をフェノール等の熱硬化性樹脂
等のバインダーで固めたガラス繊維マット、ガラス繊維
等の無機繊維とポリエチレン等の熱可塑性樹脂繊維を混
入したものが使用されている。[Prior art] Conventionally, the base materials for molded ceiling interior materials, which are one of the interior materials for automobiles, have been glass fiber mats made of glass fibers hardened with binders such as thermosetting resins such as phenol, and glass fibers. A mixture of inorganic fibers and thermoplastic resin fibers such as polyethylene is used.
ガラス繊維マットは軽量で良好な吸音性が得られ、断熱
性、寸法安定性に優れると言う利点を持っていた。Glass fiber mats have the advantages of being lightweight, providing good sound absorption, and having excellent heat insulation and dimensional stability.
また、無機繊維に熱可塑性樹脂繊維を混入したものは、
軽量で嵩高く、熱賦形性に優れ、断熱性、機械的強度に
優れると言う利点を持っていた。In addition, inorganic fibers mixed with thermoplastic resin fibers,
It had the advantages of being lightweight and bulky, having excellent thermal formability, heat insulation properties, and mechanical strength.
しかしながら、ガラス繊維マットは、上記利点を持って
いるものの、製品の取り扱い時や組付時に折損したり割
れたりして比較的脆く、自動車用内装材としての充分な
剛性が得られなかった。充分な剛（’ｌをｌ）るために
は１ｌｒｋを人さくする必要があり、その分月料を多く
使用しなＪｌればならず、コストアップになるとともに
瞥量化に逆行した。上記課題を解決するために、ガラス
繊維マットを発泡フェノール樹脂層で補強したものが提
案された。この構造では、重量は比較的低減できるが、
フェノール樹脂を発泡硬化させるため、成形タクトが長
（なり生産性が悪かった。しかも、フェノール等の熱硬
化性樹脂は硬化温度が高く、線型を用いて成形する必要
があり、型費、設備費等が高価になる欠点があった。However, although glass fiber mats have the above-mentioned advantages, they are relatively brittle and break or break during product handling or assembly, and do not have sufficient rigidity as an interior material for automobiles. In order to have sufficient rigidity, it was necessary to make 1lrk more compact, which meant that the monthly fee had to be increased accordingly, which increased costs and went against the trend of mass production. In order to solve the above problems, a glass fiber mat reinforced with a foamed phenolic resin layer was proposed. With this structure, the weight can be relatively reduced, but
Because phenolic resin is foamed and cured, the molding takt time is long (and productivity is poor).Moreover, thermosetting resins such as phenol have a high curing temperature and must be molded using a linear mold, which increases mold costs and equipment costs. etc. had the disadvantage of being expensive.
一方、無機繊維に熱可塑性樹脂繊卸を混入したものは、
冷間プレスで成形できると言う利点を持っているものの
、充分な剛性を得るためには内装材の重量を大きくする
必要があり、昨今の内装材の軽量化には逆行するもので
あった。On the other hand, inorganic fibers mixed with thermoplastic resin fibers are
Although it has the advantage of being able to be formed by cold pressing, it is necessary to increase the weight of the interior material in order to obtain sufficient rigidity, which runs counter to the recent efforts to reduce the weight of interior materials.
本発明は上記課題を克服し、軽量で自動車用内装材とし
て良好な剛性が得られかつ、冷間プレス底形でき、自動
車の天井材として好適に使用できる１”１仙市川内’Ｉ
ｉ ４Ａの型心方法を堤（Ｉｔすることを目的とする。The present invention overcomes the above-mentioned problems, and is lightweight and has good rigidity as an interior material for automobiles, can be formed into a cold press bottom shape, and is suitable for use as a ceiling material for automobiles.
The purpose is to develop the mold core method of i4A.
〔課題を解決するための手段〕
課題を解決するための本発明の手段は、発泡剤を含有し
た熱可塑性樹脂シートの両面に無機ＩＮ ｌｉを主体と
するマット状物を積層して両面から鉄板ヒータでプレス
しながら加熱することにより、前記熱可塑性樹脂シート
を軟化溶融させ、無機繊維を主体とするマット状物に前
記熱可塑性樹脂シートの溶融樹脂を滲み込ませて両者を
一体化し、前記発泡剤の分解温度に到達したところで前
記鉄板ヒータを少し開いて発泡剤を発泡させて発泡シー
トを形成し、該発泡シートを冷間プレスにより所望形状
に成形することで自動車用内装材を製造した。[Means for Solving the Problems] The means of the present invention for solving the problems is to laminate a mat-like material mainly composed of inorganic IN li on both sides of a thermoplastic resin sheet containing a foaming agent, and to apply iron plates from both sides. By heating while pressing with a heater, the thermoplastic resin sheet is softened and melted, and the molten resin of the thermoplastic resin sheet is soaked into the mat-like material mainly composed of inorganic fibers to integrate the two, and the foamed When the decomposition temperature of the agent was reached, the iron plate heater was slightly opened to foam the foaming agent to form a foamed sheet, and the foamed sheet was cold-pressed into a desired shape to produce an automobile interior material.
〔作 用］
発泡剤を含有した熱可塑性樹脂シートの両面に無機繊維
を主体とするマット状物を積層し両側から鉄板ヒータで
プレスしながら加熱することにより、熱可塑性樹脂シー
ト中の熱可塑性樹脂が軟化溶融する。この溶融樹脂は熱
可梨性樹脂シートの両面に積層されている無機繊維を主
体とするマット状物に滲み込み接着一体化される。なぜ
なら、プレスした状態であるので溶融樹脂とマット状物
とが押さえつけられ、滲み込むものと考えられる。熔融
樹脂はマット状物に少し滲み込んだ状態でも良いし、マ
ット状物の表面側まで滲み込んだ状態であっても良い。[Function] By laminating a mat-like material mainly composed of inorganic fibers on both sides of a thermoplastic resin sheet containing a foaming agent and heating it while pressing with an iron plate heater from both sides, the thermoplastic resin in the thermoplastic resin sheet is heated. softens and melts. This molten resin permeates into the mat-like material mainly composed of inorganic fibers laminated on both sides of the thermoplastic resin sheet and is bonded and integrated. This is because the molten resin and the mat-like material are thought to be pressed together and permeate because of the pressed state. The molten resin may be in a state where it has slightly permeated into the mat-like material, or it may be in a state where it has permeated to the surface side of the mat-like material.
マット状物の表面側まで熔融樹脂を滲み込ませた場合は
、滲み出した溶融樹脂が鉄板ヒータに接触するので離型
性が悪くなる。この場合、鉄板ヒータ面に予め離型剤を
塗布しておく必要があるが、マット状物の無機繊維が表
面に露出することが防止されるため、持ち運びや取り扱
い時に感しる不快なチクチク感が解消される。If the molten resin percolates to the surface of the mat-like material, the exuded molten resin will come into contact with the iron plate heater, resulting in poor mold releasability. In this case, it is necessary to apply a mold release agent to the surface of the iron plate heater in advance, but this prevents the inorganic fibers of the mat-like material from being exposed to the surface, resulting in an unpleasant tingling sensation when carried or handled. is resolved.
また、発泡剤の分解する温度に到達したところで鉄板ヒ
ータを少し開けることで厚さ方向の発泡に融通性を持た
せており、嵩高な発泡シートが形成される。Furthermore, when the temperature at which the foaming agent decomposes is reached, the iron plate heater is slightly opened to provide flexibility in foaming in the thickness direction, resulting in the formation of a bulky foamed sheet.
更に、発泡剤の発泡に伴って、熱可塑性樹脂シートと接
着一体化していた無ａ繊維を主体とするマット状物の無
機繊維が発泡シートの厚み方向に広がり、発泡シートが
均一に補強され全体に渡って均一な剛性を持つ内装材が
得られる。Furthermore, as the foaming agent foams, the inorganic fibers of the mat-like material, mainly non-aluminum fibers, which have been adhesively integrated with the thermoplastic resin sheet, spread in the thickness direction of the foamed sheet, uniformly reinforcing the foamed sheet, and reinforcing the entire foamed sheet. An interior material with uniform rigidity can be obtained.
本発明の一実施例について図面を参照しつつ詳細に説明
する。第１図は本発明に使用される発泡剤を含有した熱
可塑性樹脂シート１である。An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a thermoplastic resin sheet 1 containing a blowing agent used in the present invention.
熱可塑性樹脂シート１の素材としてはポリプロピレン、
ポリエチレン、アクリロニトリルブタジェンスチレン、
エチレン酢酸ビニル共重合体等の熱可塑性樹脂シート１
が好適である。これらの熱可塑性樹脂シートｌは、上記
樹脂に架橋剤、発泡剤をそれらの分解温度以下の温度で
練り込んでペレント化した後、押出機でシート状に押し
出して製造することができる。シート厚は０．２〜１
ｍｍが好ましい。発泡剤としては、ジニトロソペンタジ
ェン、Ｐ−トルエンスルホン酸ア旦ド等を使用すること
ができる。The material of the thermoplastic resin sheet 1 is polypropylene,
polyethylene, acrylonitrile butadiene styrene,
Thermoplastic resin sheet 1 such as ethylene vinyl acetate copolymer
is suitable. These thermoplastic resin sheets 1 can be produced by kneading a crosslinking agent and a blowing agent into the resin at a temperature below their decomposition temperature to form a pellet, and then extruding the resulting pellet into a sheet using an extruder. Sheet thickness is 0.2~1
mm is preferred. As the blowing agent, dinitrosopentadiene, P-toluenesulfonic acid adduct, etc. can be used.
第２図は無機繊維を主体とするマット状物２である。無
ａ繊維としてはガラス繊維、ロック・シール、セラ娩ツ
ク臥維、炭素ｗＡ維等が早げられる。マノＩ・状物２と
してはガラス不織布、ガラスマット、ガラスマット、湿
式法により製造されるガラスペーパー等がある。繊卸の
長さはマット状物の成形性の点から９〜２０ｍｍが好ま
しい。また、その太さは細くなると機輌的強度が低下し
、太くなると重くなって嵩密度が小さくなるので６〜２
０μｍが好ましい。ガラス糸７１・の場合、ネソ１−の
目の大きさとしては２〜３０ｍｍが好ましい。FIG. 2 shows a mat-like material 2 mainly composed of inorganic fibers. Examples of the non-aluminum fibers include glass fiber, Rock Seal, cellulose fiber, carbon wafer fiber, and the like. Examples of the material 2 include glass nonwoven fabric, glass mat, glass mat, and glass paper produced by a wet method. The length of the fiber is preferably 9 to 20 mm from the viewpoint of formability of the mat-like product. In addition, as the thickness becomes thinner, the mechanical strength decreases, and as it becomes thicker, it becomes heavier and the bulk density decreases, so
0 μm is preferable. In the case of the glass thread 71, the mesh size is preferably 2 to 30 mm.
次に第３図ないし第５図を参照して本発明の製造方法に
ついて詳細に説明する。上述の熱可塑性樹脂シー１−１
の両面にガラス繊維を主体とするマツ１へ状物２を積層
して積層体３を形成する。この積層体３を第３図に示し
た上下一対の鉄板ヒータ４の間にセントしてプレスする
。鉄板ヒータ４の温度は熱可塑性樹脂シー１−１として
低融点ポリエチレンシート（融点１０５〜１１０’Ｃ）
を使用した場合は、１７０〜２００ ’Ｃが好ましい。Next, the manufacturing method of the present invention will be explained in detail with reference to FIGS. 3 to 5. Thermoplastic resin sheet 1-1 described above
A laminate 3 is formed by laminating pine fibers 1 mainly made of glass fibers 2 on both sides of the pine. This laminate 3 is placed between a pair of upper and lower iron plate heaters 4 shown in FIG. 3 and pressed. The temperature of the iron plate heater 4 is set using a low melting point polyethylene sheet (melting point 105 to 110'C) as the thermoplastic resin sheet 1-1.
When using, 170 to 200'C is preferable.
積層体３は鉄板ヒータ４のプレスによる加熱で熱可塑性
樹脂シート１の熱可塑性樹脂が軟化溶融し、第４図に示
したように、両面に積層されている無機ｗＡ紺を主体と
するマット状物２に熔融樹脂９が滲み出して来る。これ
により、無機繊維を主体とするマット状物２と熱可塑性
樹脂シート１とが接着一体化されるとともに、熱可塑性
樹脂シー１−１が無機繊維を主体とするマット状物２で
補強された状態となり、ｘｊ法法定定性優れた％＋Ａが
成形できる。また、溶融樹脂９をマット状物２の表面側
まで滲み込ませた場合は、マット状物２の無機繊維に溶
融樹脂９が含浸した状態になるので、無機繊維の露出が
防止でき、持ち運びや取り扱い時に感しる不快なチクチ
ク感は解消される。The thermoplastic resin of the thermoplastic resin sheet 1 is softened and melted by heating by the press of the iron plate heater 4, and as shown in FIG. The molten resin 9 oozes out into the object 2. As a result, the mat-like material 2 mainly composed of inorganic fibers and the thermoplastic resin sheet 1 are bonded and integrated, and the thermoplastic resin sheet 1-1 is reinforced with the mat-like material 2 mainly composed of inorganic fibers. %+A with excellent xj method qualification can be molded. In addition, when the molten resin 9 permeates to the surface side of the mat-like object 2, the inorganic fibers of the mat-like object 2 are impregnated with the molten resin 9, which prevents the inorganic fibers from being exposed and makes it easier to carry. The unpleasant tingling sensation felt when handling is eliminated.
更に、プレスした状態を糺持して行くと、積層体３が発
泡剤の分解する温度まで昇温する。Further, as the pressed state is held, the temperature of the laminate 3 rises to a temperature at which the foaming agent decomposes.
この時、第５図に示したようにプレスを少し開けること
により、発泡剤の発泡が円滑に行われる。プレスを少し
開ｉＪないと、厚め方向に発泡することができす、幅方
向に発泡してしまい、嵩高な発泡シート５を得ることが
できない。発泡に伴って、熱可塑性樹脂シート１の両面
に積層されたマット状物２の３”＝＜ Ｎ ｕｋ維が、
発泡シート５のｊｌさ方向に広がることにより均一に補
強され、剛性の優れた発泡シー１〜５が形成される。At this time, by slightly opening the press as shown in FIG. 5, the foaming agent can be smoothly foamed. If the press is not opened slightly, foaming cannot occur in the thickness direction, but foaming occurs in the width direction, making it impossible to obtain a bulky foamed sheet 5. Along with foaming, the 3''=< Nuk fibers of the mat-like material 2 laminated on both sides of the thermoplastic resin sheet 1 are
By spreading the foam sheet 5 in the longitudinal direction, the foam sheets 1 to 5 are uniformly reinforced and have excellent rigidity.
この軟化溶融状態の発泡シート５を第６図に示したよう
に−・対の冷間プレス型７にセットして所望形状に成形
することで自動車用内装材６が成形できる。なお、冷間
プレス時に、フィルムあるいは不織布状のホットメルト
接着剤または、ポリエチレンフィルム等がうξネートさ
れたポリエステルスパンボンド不織布等の表皮月８を予
め型面にセットシてお＆Ｊば、ノ、（拐成形と表皮接着
を同時に行うことも可能である。As shown in FIG. 6, the foamed sheet 5 in a softened and molten state is set in a pair of cold press molds 7 and molded into a desired shape to form an interior material 6 for an automobile. In addition, during cold pressing, a surface layer 8 such as a polyester spunbond nonwoven fabric coated with a film or nonwoven hot melt adhesive or a polyethylene film is set on the mold surface in advance. It is also possible to carry out molding and skin adhesion at the same time.
本発明は次の効果を奏する。 The present invention has the following effects.
（１）１発泡剤を含有した熱可塑性樹脂シートを発泡さ
一已るので、軽重でしかも、嵩高な自動車用内装材が得
られる。(1) Since the thermoplastic resin sheet containing the foaming agent is foamed, a lightweight yet bulky interior material for automobiles can be obtained.
（２）４ 熱可塑性樹脂シーＩ・の両面に無機繊維を主
体とするマット秋物を積層し、両面から鉄板ヒータでプ
レスして加熱するので、熱可塑性樹脂シート中の樹脂が
軟化溶融してマット状物に滲み込み、マット状物と接着
一体化される。したがって、熱可塑性樹脂シートが無機
繊維を主体とするマツ１〜状物で補強されるので、寸法
安定性に優れるとともに熱成形性の優れた自動車用内装
材が製造できる。(2) 4 A matte material mainly composed of inorganic fibers is laminated on both sides of the thermoplastic resin sheet I, and both sides are pressed and heated with an iron plate heater, so the resin in the thermoplastic resin sheet softens and melts, forming a matte. It soaks into the mat-like material and becomes adhesive and integrated with the mat-like material. Therefore, since the thermoplastic resin sheet is reinforced with a pine-shaped material mainly composed of inorganic fibers, an automobile interior material having excellent dimensional stability and excellent thermoformability can be manufactured.
また、溶融樹脂が無Ｊａ繊維を主体とするマット状物の
表面側まで滲み込んだ場合は上記利点に加え、マ、１・
状物の無機繊維の露出が防止されるので、持ち運びや＆
ｕ、ｖつけ時に感しる不快なデクチク感は解消される。In addition to the above advantages, if the molten resin permeates to the surface of the mat-like material mainly composed of Ja-free fibers,
This prevents the inorganic fibers of the object from being exposed, making it easy to carry and use.
The unpleasant tingling sensation you feel when applying u and v will be eliminated.
（３）、冷間プレスにより所望形状に成形できるので、
生産性に優れるとともに、型費、設備費等が安くて済み
コストダウンが図れる。(3) It can be formed into the desired shape by cold pressing, so
Not only does it have excellent productivity, but mold costs, equipment costs, etc. are low, and costs can be reduced.
（４）０発泡剤の発泡にイ゛１（って、マット状物の無
機繊維が発泡シートの厚さ方向に広がり、発泡シートの
全体に渡って均一に補強されるので、剛性の優れた自動
車用内装材が得られる。(4) The inorganic fibers of the mat-like material spread in the thickness direction of the foam sheet and are uniformly reinforced throughout the foam sheet, resulting in excellent rigidity. An automobile interior material is obtained.
４、4,
第１図は本発明に使用される熱可塑性樹脂シートであり
、第２図は無Ｒ繊維を主体とするマット状物であり、第
３図ないし第６図は、本発明の製造方法の各工程の概略
図である。
１・・・熱可塑性樹脂シート、
２・・・マット状物、３・・・積層体、４・・・鉄板ヒ
ータ、５・・・発泡シート、６・・・自動車用内装材、
７・・・冷間プレス型、８・・・表皮材、９・・・溶融
樹脂。
１１
第１図
第２図
第３図
第４図Fig. 1 shows a thermoplastic resin sheet used in the present invention, Fig. 2 shows a mat-like material mainly composed of R-free fibers, and Figs. 3 to 6 show each of the manufacturing methods of the present invention. It is a schematic diagram of a process. DESCRIPTION OF SYMBOLS 1... Thermoplastic resin sheet, 2... Mat-like material, 3... Laminated body, 4... Iron plate heater, 5... Foam sheet, 6... Automobile interior material,
7... Cold press mold, 8... Skin material, 9... Molten resin. 11 Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
維を主体とするマット状物を積層して両面から鉄板ヒー
タでプレスしながら加熱することにより、前記熱可塑性
樹脂シートを軟化溶融させ、無機繊維を主体とするマッ
ト状物に前記熱可塑性樹脂シートの溶融樹脂を滲み込ま
せて両者を一体化し、前記発泡剤の分解温度に到達した
ところで前記鉄板ヒータを少し開いて発泡剤を発泡させ
て発泡シートを形成し、該発泡シートを冷間プレスによ
り所望形状に成形する自動車用内装材の製造方法。A mat-like material mainly composed of inorganic fibers is laminated on both sides of a thermoplastic resin sheet containing a foaming agent, and the thermoplastic resin sheet is softened and melted by heating while pressing with an iron plate heater from both sides, and the inorganic fibers are heated. The molten resin of the thermoplastic resin sheet is soaked into a mat-like material mainly composed of , and the two are integrated, and when the decomposition temperature of the foaming agent is reached, the iron plate heater is slightly opened to foam the foaming agent. A method of manufacturing an interior material for an automobile, which comprises forming a sheet and molding the foamed sheet into a desired shape by cold pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1197822A JPH0361027A (en) | 1989-07-28 | 1989-07-28 | Preparation of interior material for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1197822A JPH0361027A (en) | 1989-07-28 | 1989-07-28 | Preparation of interior material for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361027A true JPH0361027A (en) | 1991-03-15 |
Family
ID=16380916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1197822A Pending JPH0361027A (en) | 1989-07-28 | 1989-07-28 | Preparation of interior material for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361027A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012148568A (en) * | 2006-11-22 | 2012-08-09 | Fukui Prefecture | Thermoplastic resin-reinforced sheet material, reinforced thermoplastic-resin multilayer sheet material, method for producing the same, and multilayer thermoplastic-resin-reinforced molding |
| JP2013523479A (en) * | 2010-03-25 | 2013-06-17 | ダイムラー・アクチェンゲゼルシャフト | SMC multilayer component manufacturing method |
-
1989
- 1989-07-28 JP JP1197822A patent/JPH0361027A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012148568A (en) * | 2006-11-22 | 2012-08-09 | Fukui Prefecture | Thermoplastic resin-reinforced sheet material, reinforced thermoplastic-resin multilayer sheet material, method for producing the same, and multilayer thermoplastic-resin-reinforced molding |
| JP2013523479A (en) * | 2010-03-25 | 2013-06-17 | ダイムラー・アクチェンゲゼルシャフト | SMC multilayer component manufacturing method |
| US8932499B2 (en) | 2010-03-25 | 2015-01-13 | Daimler Ag | Method for producing an SMC multi-layer component |
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