JPH08281674A - Production of skin material made of resin - Google Patents
Production of skin material made of resinInfo
- Publication number
- JPH08281674A JPH08281674A JP8541595A JP8541595A JPH08281674A JP H08281674 A JPH08281674 A JP H08281674A JP 8541595 A JP8541595 A JP 8541595A JP 8541595 A JP8541595 A JP 8541595A JP H08281674 A JPH08281674 A JP H08281674A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- skin layer
- skin
- resin material
- polyvinyl chloride
- 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.)
- Withdrawn
Links
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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0038—Plasticisers
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パウダースラッシュ成
形法を用いた樹脂製表皮材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a resin skin material using a powder slush molding method.
【０００２】[0002]
【従来の技術】自動車用内装品等の表皮を樹脂材料によ
って成形するにあたり、パウダースラッシュ成形法を用
いて２層構造の表皮材を形成するという方法は一般に知
られている。すなわち、その具体的な方法は、パウダー
状の樹脂材料を表皮成形型に投入しパウダースラッシュ
成形によって第１表皮層を形成した後、その上にこの第
１表皮層とは異なるパウダー状の樹脂材料を投入しパウ
ダースラッシュ成形によって、上記第１表皮層に積層一
体化された第２表皮層を形成するというものである。2. Description of the Related Art A method of forming a two-layered skin material using a powder slush molding method is generally known when molding a skin material such as an automobile interior component with a resin material. That is, a specific method thereof is as follows. A powdery resin material is charged into a skin forming mold to form a first skin layer by powder slush molding, and then a powdery resin material different from the first skin layer is formed thereon. Is charged and powder slush molding is performed to form a second skin layer laminated and integrated with the first skin layer.
【０００３】このようなパウダースラッシュ成形を複数
回行なって表皮材を製造する方法の一例が特公平５−１
１２３号公報に記載されている。同例は、第１表皮層を
塩ビニル樹脂層とし、第２表皮層を塩化ビニル発泡層と
したものである。An example of a method for producing a skin material by performing such powder slush molding a plurality of times is Japanese Patent Publication No. 5-1.
No. 123 publication. In this example, the first skin layer is a vinyl chloride resin layer and the second skin layer is a vinyl chloride foam layer.
【０００４】[0004]
【発明が解決しようとする課題】ところで、自動車のイ
ンストルメントパネルの表皮材には見栄えが良いととも
に、自動車の使用経過においてフロントウインドガラス
への曇価を発生させないことが要求される一方、製造コ
ストが低いことも要求される。このような要求に応える
方法として、上記パウダースラッシュ成形を複数回行な
う方法を応用することが考えられる。すなわち、表皮材
の表面に表われる上側の層のみを見栄えの良い外観が得
られる第１樹脂材料によってパウダースラッシュ成形
し、表面には表われない下側の層を廉価な第２樹脂材料
によってパウダースラッシュ成形する、という方法であ
る。By the way, while it is required that the skin material of the instrument panel of the automobile has a good appearance and that the windshield is not fogged during the course of use of the automobile, the manufacturing cost is high. Is also required to be low. As a method to meet such a demand, it is possible to apply a method of performing the powder slush molding a plurality of times. That is, only the upper layer appearing on the surface of the skin material is powder slush-molded by the first resin material that gives a good-looking appearance, and the lower layer not appearing on the surface is powdered by the inexpensive second resin material. It is a method of slush molding.
【０００５】しかし、廉価な樹脂材料を使用すると、得
られる表皮材は可塑剤のブリードを生じ易くなる、つま
り自動車のウインドガラスへの曇価が高くなるのが通常
であり、そのために表皮材及びウインドガラスの見栄え
がかえって悪くなったり、製品寿命が短くなる不具合が
ある。However, when a low-priced resin material is used, the obtained skin material is apt to cause bleeding of the plasticizer, that is, the windshield of an automobile generally has a high fogging value, which is why the skin material and the There is a problem that the appearance of the windshield becomes worse and the product life becomes shorter.
【０００６】[0006]
【課題を解決するための手段及びその作用】本発明者
は、このような課題について、種々の実験・検討を行な
った結果、表皮材の表面に表われない下側の層について
は、ベースレジンに対して特定の可塑剤と樹脂材とを適
量配合するようにすれば、上記ブリードの問題を避けな
がらコスト低減を図ることができることを見出だし、本
発明を完成するに至ったものである。Means for Solving the Problems and Their Actions As a result of various experiments and studies on such problems, the present inventor found that the lower layer not appearing on the surface of the skin material is a base resin. On the other hand, it was found that the cost can be reduced while avoiding the above-mentioned bleeding problem by mixing an appropriate amount of a specific plasticizer and a resin material, and the present invention has been completed.
【０００７】すなわち、それは、パウダー状の第１樹脂
材料を用い、加熱された成形型に投入し該成形型の成形
面に溶着させて第１表皮層を形成する第１パウダースラ
ッシュ成形工程を行なった後、パウダー状の第２樹脂材
料を上記成形型の加熱された第１表皮層の上に投入し該
第１表皮層に溶着させて第２表皮層を形成する第２パウ
ダースラッシュ成形工程を行なうことによって、上記第
１表皮層と第２表皮層とが積層一体化された樹脂製表皮
材を製造する方法であって、上記第１樹脂材料として、
ポリ塩化ビニルにトリメリト酸系可塑剤及びフタル酸系
可塑剤のうちから選ばれた少なくとも１種の可塑剤を混
入してなる樹脂材料を用い、上記第２樹脂材料として、
ポリ塩化ビニルにフタル酸系可塑剤及び酢酸ビニル系樹
脂を混入してなる樹脂材料を用い、該酢酸ビニル系樹脂
の配合量を該第２樹脂材料のポリ塩化ビニル１００重量
部に対して５〜３０重量部としたことを特徴とするもの
である。That is, the first powder slush molding step is carried out in which a powdery first resin material is put into a heated molding die and welded to the molding surface of the molding die to form a first skin layer. After that, a second powder slush molding step of forming a second skin layer by introducing a powdery second resin material onto the heated first skin layer of the molding die and welding the first skin layer to the first skin layer is performed. A method for producing a resin-made skin material in which the first skin layer and the second skin layer are laminated and integrated by carrying out the method, comprising:
A resin material obtained by mixing polyvinyl chloride with at least one plasticizer selected from trimellitic acid plasticizers and phthalic acid plasticizers is used as the second resin material.
A resin material obtained by mixing phthalic acid plasticizer and vinyl acetate resin in polyvinyl chloride is used, and the compounding amount of the vinyl acetate resin is 5 to 100 parts by weight of polyvinyl chloride of the second resin material. It is characterized by being 30 parts by weight.
【０００８】ここに、上記第１表皮層の可塑剤として
は、トリメリト酸系可塑剤及びフタル酸系可塑剤のうち
のいずれを用いてもよく、また、両者を併用してもよい
が、曇価を抑制する観点からはトリメリト酸系可塑剤を
採用することが好適である。As the plasticizer for the first skin layer, any one of trimellitic acid type plasticizer and phthalic acid type plasticizer may be used. From the viewpoint of suppressing the valency, it is preferable to employ trimellitic acid plasticizer.
【０００９】上記第２表皮層のベースレジンであるポリ
塩化ビニルに可塑剤としてフタル酸系のものを使用し、
さらに酢酸ビニル系樹脂を添加しているのは、コストの
低減に有利になるからである。そうして、酢酸ビニル系
樹脂の量をポリ塩化ビニル樹脂１００重量部に対して５
〜３０重量部としているのは、５重量部未満ではコスト
低減の効果が小さいからであり、また、３０重量部より
も多量になると曇価が高くなる（ブリードの問題が顕著
になる）からである。A phthalic acid-based plasticizer is used as the plasticizer for polyvinyl chloride, which is the base resin for the second skin layer,
Further, the vinyl acetate resin is added because it is advantageous for cost reduction. Then, the amount of the vinyl acetate resin is 5 with respect to 100 parts by weight of the polyvinyl chloride resin.
The amount is up to 30 parts by weight because if it is less than 5 parts by weight, the cost reduction effect is small, and if it is more than 30 parts by weight, the haze value becomes high (the problem of bleeding becomes remarkable). is there.
【００１０】ここに、酢酸ビニル系樹脂としては、ポリ
酢酸ビニル、酢酸ビニル−塩化ビニル共重合樹脂、ある
いは他の共重合樹脂を用いることができる。As the vinyl acetate resin, polyvinyl acetate, vinyl acetate-vinyl chloride copolymer resin, or other copolymer resin can be used.
【００１１】[0011]
【発明の効果】従って、本発明によれば、第１表皮層と
第２表皮層とを同じくポリ塩化ビニルをベースとしてパ
ウダースラッシュ成形によって形成するにあたり、第２
表皮層については可塑剤としてフタル酸系のものを用
い、且つポリ塩化ビニル１００重量部に対して酢酸ビニ
ル系樹脂を５〜３０重量部配合するようにしたから、表
皮材によるウインドガラスの曇価が高くなることを避け
ながら、製造コストを下げることができる。Therefore, according to the present invention, when the first skin layer and the second skin layer are formed by powder slush molding using the same polyvinyl chloride as the base,
For the skin layer, a phthalic acid type plasticizer was used, and 5 to 30 parts by weight of vinyl acetate resin was added to 100 parts by weight of polyvinyl chloride. The manufacturing cost can be reduced while avoiding an increase in
【００１２】[0012]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】＜表皮材の構造＞図１において、１は自動
車内装品の表皮材であり、表面側の第１表皮層２と内側
の第２表皮層３とよりなる。上記表皮材１は以下の工程
によって製造する。<Structure of Skin Material> In FIG. 1, reference numeral 1 is a skin material for automobile interior parts, which comprises a first skin layer 2 on the front surface side and a second skin layer 3 on the inner side. The skin material 1 is manufactured by the following steps.
【００１４】＜表皮材の製造方法＞ −成形型の加熱− 上記表皮材１を成形するための成形型を加熱する。加熱
温度は２００℃前後である。<Method of Manufacturing Skin Material> -Heating of Mold-The mold for molding the above-mentioned skin material 1 is heated. The heating temperature is around 200 ° C.
【００１５】−第１パウダーフラッシュ成形工程− ポリ塩化ビニル１００重量部に、トリメリト酸系可塑剤
４０〜６０重量部及び安定剤その他の添加剤を混入して
なるパウダー状の第１樹脂材料（顔料添加）を準備し、
これを上記加熱された成形型に投入する。この第１樹脂
材料は成形型の成形面に接している部分からから溶融し
該成形面に付着していく。-First Powder Flash Molding Step- 100 parts by weight of polyvinyl chloride, 40 to 60 parts by weight of trimellitic acid plasticizer, stabilizer and other additives are mixed in powdery first resin material (pigment). Preparation),
This is put into the heated mold. The first resin material melts from the portion in contact with the molding surface of the molding die and adheres to the molding surface.
【００１６】上記第１樹脂材料の投入から数秒後に、上
記成形型を反転し、該成形型に溶着していない第１樹脂
材料を回収する。上記成形型に溶着している第１樹脂材
料によって上記第１表皮層２が形成される。A few seconds after the introduction of the first resin material, the molding die is inverted and the first resin material not welded to the molding die is recovered. The first skin layer 2 is formed by the first resin material welded to the molding die.
【００１７】−第２パウダーフラッシュ成形工程− 上記成形型の第１表皮層２の加熱状態を保ったまま、ポ
リ塩化ビニル１００重量部にフタル酸系可塑剤４０〜６
０重量部、酢酸ビニル系樹脂５〜３０重量部及び安定剤
その他の添加剤を混入してなるパウダー状の第２樹脂材
料（顔料なし）を準備し、これを上記第１表皮層２の上
に投入する。この第２樹脂材料は第１表皮層２に接して
いる部分から溶融し該第１表皮層２に付着していく。数
秒後に、成形型を反転させて、第１表皮層２に溶着して
いない第２樹脂材料を回収する。成形型に残っている第
２樹脂材料によって上記第１表皮層２に積層一体化され
た第２表皮層３が形成される。-Second Powder Flash Molding Step- While maintaining the heated state of the first skin layer 2 of the molding die, 100 parts by weight of polyvinyl chloride are added to phthalic acid plasticizers 40 to 6
A powdery second resin material (without a pigment) prepared by mixing 0 parts by weight, 5 to 30 parts by weight of a vinyl acetate resin and a stabilizer and other additives is prepared, and this is placed on the first skin layer 2 described above. Throw in. The second resin material melts from the portion in contact with the first skin layer 2 and adheres to the first skin layer 2. After a few seconds, the molding die is reversed to collect the second resin material that is not welded to the first skin layer 2. The second skin layer 3 laminated and integrated with the first skin layer 2 is formed by the second resin material remaining in the molding die.
【００１８】−冷却・脱型工程− 上記成形型及び表皮材１が冷却した後、該表皮材１を成
形型から脱型する。-Cooling / demolding step-After the molding die and the skin material 1 are cooled, the skin material 1 is demolded from the molding die.
【００１９】＜曇価について＞上記第２パウダーフラッ
シュ成形工程において、酢酸ビニル系樹脂として酢酸ビ
ニル−塩化ビニル共重合樹脂を用い、且つその配合量を
ポリ塩化ビニル１００重量部に対して０〜３５重量部の
範囲で変化させ、得られた表皮材の曇価を米国自動車技
術会の曇価測定法ＳＡＥＪ２７５ＦＥＢ８５に基づいて
調べた。第１パウダースラッシュ成形工程の条件及び第
２パウダースラッシュ成形工程の他の条件については同
一にした。試験結果は表１に示されている。<Regarding Haze Value> In the second powder flash molding step, a vinyl acetate-vinyl chloride copolymer resin is used as the vinyl acetate resin, and the blending amount is 0 to 35 with respect to 100 parts by weight of polyvinyl chloride. The haze value of the obtained skin material was examined based on the haze value measurement method SAEJ275FEB85 of the American Society of Automotive Engineers, while varying the range of parts by weight. The conditions of the first powder slush molding step and the other conditions of the second powder slush molding step were the same. The test results are shown in Table 1.
【００２０】[0020]
【表１】 [Table 1]
【００２１】同表によれば、曇価は、酢酸ビニル系樹脂
の配合量が２０重量部までは、その配合量が零の場合と
ほとんど変わりがなく、それよりも配合量が多くなるに
従って曇価が高くなっていく傾向がみられ、３０重量部
を越えると曇価がかなり高くなる（曇が多くなる）。こ
の結果から、酢酸ビニル系樹脂の配合量は３０重量部以
下とすることが好適であることがわかる。According to the table, the haze value is almost the same as when the blending amount of the vinyl acetate resin is up to 20 parts by weight as when the blending amount is zero, and as the blending amount becomes larger than that, the haze value becomes higher. The value tends to increase, and when it exceeds 30 parts by weight, the haze value becomes considerably high (haze increases). From this result, it is understood that it is preferable that the blending amount of the vinyl acetate resin is 30 parts by weight or less.
【００２２】なお、得られた表皮材の外観、引張強度、
伸び率、硬度、耐熱クリープ性、収縮率、短期耐熱性等
についても調べたが、上記酢酸ビニル系樹脂の配合量の
増加がこれらの性質に悪影響を及ぼしている事実はみら
れなかった。The appearance, tensile strength, and
Elongation rate, hardness, heat-resistant creep resistance, shrinkage rate, short-term heat resistance, etc. were also examined, but no fact was found that an increase in the blending amount of the vinyl acetate resin adversely affects these properties.
【図１】樹脂製表皮材の断面図FIG. 1 is a cross-sectional view of a resin skin material.
１ 表皮材 ２ 第１表皮層 ３ 第２表皮層 1 Skin material 2 1st skin layer 3 2nd skin layer
Claims (1)
された成形型に投入し該成形型の成形面に溶着させて第
１表皮層を形成する第１パウダースラッシュ成形工程を
行なった後、パウダー状の第２樹脂材料を上記成形型の
加熱された第１表皮層の上に投入し該第１表皮層に溶着
させて第２表皮層を形成する第２パウダースラッシュ成
形工程を行なうことによって、上記第１表皮層と第２表
皮層とが積層一体化された樹脂製表皮材を製造する方法
であって、 上記第１樹脂材料として、ポリ塩化ビニルにトリメリト
酸系可塑剤及びフタル酸系可塑剤のうちから選ばれた少
なくとも１種の可塑剤を混入してなる樹脂材料を用い、 上記第２樹脂材料として、ポリ塩化ビニルにフタル酸系
可塑剤及び酢酸ビニル系樹脂を混入してなる樹脂材料を
用い、該酢酸ビニル系樹脂の配合量を該第２樹脂材料の
ポリ塩化ビニル１００重量部に対して５〜３０重量部と
したことを特徴とする樹脂製表皮材の製造方法。1. A first powder slush molding step of forming a first skin layer by using a powdery first resin material and charging it into a heated molding die and welding it to the molding surface of the molding die. Performing a second powder slush molding step of forming a second skin layer by introducing a powdery second resin material onto the heated first skin layer of the molding die and welding the first skin layer to the first skin layer. A method for producing a resin skin material in which the first skin layer and the second skin layer are laminated and integrated by the method, wherein the first resin material is polyvinyl chloride, trimellitic acid plasticizer and phthalic acid. A resin material containing at least one plasticizer selected from the group consisting of plasticizers is used, and as the second resin material, phthalic acid plasticizer and vinyl acetate resin are mixed into polyvinyl chloride. Using a resin material The method for fabricating a resin-made skin material, characterized in that a 5 to 30 parts by weight amount of vinyl acetate resin against polyvinyl chloride 100 parts by weight of the second resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8541595A JPH08281674A (en) | 1995-04-11 | 1995-04-11 | Production of skin material made of resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8541595A JPH08281674A (en) | 1995-04-11 | 1995-04-11 | Production of skin material made of resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08281674A true JPH08281674A (en) | 1996-10-29 |
Family
ID=13858181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8541595A Withdrawn JPH08281674A (en) | 1995-04-11 | 1995-04-11 | Production of skin material made of resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08281674A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892124A1 (en) * | 2005-10-18 | 2007-04-20 | Arkema Sa | Plasticized thermoplastic PVC resin, useful to form a skin layer or composite structure on interior parts of automobile vehicles, comprises polyvinyl chloride resins, plasticizers and additives |
| JP2009520108A (en) * | 2005-12-27 | 2009-05-21 | ポリワン コーポレイション | Polyhalogenated vinyl-uncrosslinked elastomer alloy |
| KR20200036309A (en) * | 2018-09-28 | 2020-04-07 | (주)엘지하우시스 | A skin material for automobile interior materials and a method for manufacturing the same |
-
1995
- 1995-04-11 JP JP8541595A patent/JPH08281674A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892124A1 (en) * | 2005-10-18 | 2007-04-20 | Arkema Sa | Plasticized thermoplastic PVC resin, useful to form a skin layer or composite structure on interior parts of automobile vehicles, comprises polyvinyl chloride resins, plasticizers and additives |
| WO2007057586A1 (en) * | 2005-10-18 | 2007-05-24 | Arkema France | Composition based on plasticized pvc thermoplastic resins for the production of composite skins for vehicle passenger compartment parts |
| JP2009511729A (en) * | 2005-10-18 | 2009-03-19 | アルケマ フランス | Composition based on plasticized PVC thermoplastic used in the manufacture of composite skins for vehicle cabin components |
| JP2009520108A (en) * | 2005-12-27 | 2009-05-21 | ポリワン コーポレイション | Polyhalogenated vinyl-uncrosslinked elastomer alloy |
| KR20200036309A (en) * | 2018-09-28 | 2020-04-07 | (주)엘지하우시스 | A skin material for automobile interior materials and a method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020702 |