JPS62128727A - Manufacture of molding - Google Patents
Manufacture of moldingInfo
- Publication number
- JPS62128727A JPS62128727A JP60268739A JP26873985A JPS62128727A JP S62128727 A JPS62128727 A JP S62128727A JP 60268739 A JP60268739 A JP 60268739A JP 26873985 A JP26873985 A JP 26873985A JP S62128727 A JPS62128727 A JP S62128727A
- Authority
- JP
- Japan
- Prior art keywords
- film
- molded product
- molding
- series resin
- resin
- 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
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/156—Coating two or more articles simultaneously
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
- B29C48/155—Partial coating thereof
-
- 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
- B29L2031/722—Decorative or ornamental articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は車両用の合成樹脂製モールディングの製造方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a synthetic resin molding for a vehicle.
アイオノマー樹脂などのオレフィン系樹脂は耐寒衝撃性
が高いため、自動車のバンパーやウィンドウまわりのモ
ールディングとして使用されている。この種のモールデ
ィングの従来の製造方法は。Olefin resins such as ionomer resins have high cold impact resistance, so they are used as moldings around automobile bumpers and windows. The traditional manufacturing method for this type of molding is.
溶融樹脂を押出成形型に供給して押出成形を行い、押出
成形品を所定寸法に切断し、端末にエンドピース部を形
成し、または形成することなくモールディングとしてい
る。Molten resin is supplied to an extrusion mold to perform extrusion molding, the extrusion molded product is cut into predetermined dimensions, and an end piece is formed at the end, or a molding is performed without forming an end piece.
しかしながら、このような従来の方法により製造された
モールディングは、オレフィン系樹脂が表面に露出して
いるため、自動車の出荷に際してコーティングした防錆
剤を、ユーザーに渡る前に灯油等の溶剤を吹付けて落と
すと、モールディングの表面が曇って光沢が失われると
いう問題点があった。また押出成形の際、成形品が水ア
メ状となり、押出成形型の出口で垂れ下がりやすく、形
状の保持が難しいという問題点があった。However, in moldings manufactured by such conventional methods, the olefin resin is exposed on the surface, so when the car is shipped, it is coated with a rust preventive agent, and before it is delivered to the user, it is sprayed with a solvent such as kerosene. When removed, the surface of the molding becomes cloudy and loses its luster. In addition, during extrusion molding, the molded product becomes starch syrup-like and tends to sag at the exit of the extrusion mold, making it difficult to maintain the shape.
この発明は上記問題点を解決するためのもので、灯油等
の溶剤により曇ることがなく、押出成形に際して変形が
発生しないモールディングの製造方法を提供することを
目的としている。This invention is intended to solve the above-mentioned problems, and aims to provide a method for manufacturing a molding that does not become cloudy due to solvents such as kerosene and does not undergo deformation during extrusion molding.
この発明は、押出成形型にオレフィン系樹脂の溶融樹脂
を供給してモールディングを押出成形する方法において
、ウレタン系樹脂被膜を形成した耐熱性および弾力性を
有する保護フィルムを押出成形型に供給し、ウレタン系
樹脂被膜を成形品に圧接した状態で押出成形を行い、ウ
レタン系樹脂被膜を成形品に転写することを特徴とする
モールディングの製造方法である。This invention provides a method for extruding a molding by supplying a molten olefin resin to an extrusion mold, in which a protective film having heat resistance and elasticity formed with a urethane resin coating is supplied to the extrusion mold, This method of manufacturing a molding is characterized in that extrusion molding is performed with the urethane resin coating in pressure contact with the molded product, and the urethane resin coating is transferred to the molded product.
オレフィン系樹脂としては、アイオノマー樹脂(エチレ
ン−アクリル酸共重合体樹脂)等のエチレン系樹脂が好
ましい。ウレタン系樹脂としてはポリウレタン樹脂等が
使用でき、透明なものが好はウレタン系樹脂と相溶性を
有しない材質のものが好ましく、例えばポリテトラフル
オロエチレン樹脂(テフロン)、ポリアセタール樹脂等
のフィルムが使用可能である。As the olefin resin, ethylene resins such as ionomer resins (ethylene-acrylic acid copolymer resins) are preferred. As the urethane resin, polyurethane resin etc. can be used, preferably a transparent one and a material that is not compatible with the urethane resin. For example, a film of polytetrafluoroethylene resin (Teflon), polyacetal resin, etc. is used. It is possible.
この発明のモールディングの製造方法においては、ウレ
タン系樹脂被膜を形成した保護フィルムおよびオレフィ
ン系樹脂の溶融樹脂を押出成形型に供給し、ウレタン系
樹脂被膜が溶融樹脂に接するように、溶融樹脂を保護フ
ィルムで覆った状態で押出成形を行うと、ウレタン系樹
脂被膜を形成した保護フィルムは溶融樹脂の熱で加熱さ
れ、溶融樹脂の圧力で成形品の表面側に圧接された状態
で押出され、ウレタン系樹脂被膜は成形品の表面に転写
されるとともに、保護フィルムは成形品を覆って、垂れ
下がり等の変形を防止しなから押出成形型を出る。In the molding manufacturing method of the present invention, a protective film having a urethane resin coating and a molten olefin resin are supplied to an extrusion mold, and the molten resin is protected so that the urethane resin coating is in contact with the molten resin. When extrusion molding is performed while covered with a film, the protective film with a urethane resin coating is heated by the heat of the molten resin, and is extruded while being pressed against the surface side of the molded product by the pressure of the molten resin. The resin film is transferred to the surface of the molded product, and the protective film covers the molded product to prevent deformation such as sagging before exiting the extrusion mold.
こうして押出された成形品を所定寸法に切断してモール
ディングが製造される。製造されたモールディングは押
出成形時の変形が防止されて、所定の形状を有し、また
ウレタン系樹脂被膜が被着されているため、灯油等の溶
剤で処理しても曇りが発生しない。A molding is manufactured by cutting the molded product thus extruded into a predetermined size. The manufactured molding is prevented from deforming during extrusion molding, has a predetermined shape, and is coated with a urethane resin coating, so it does not become cloudy even when treated with a solvent such as kerosene.
以下、この発明を図面の実施例により説明する。 Hereinafter, the present invention will be explained with reference to embodiments of the drawings.
第1図は実施例の製造方法を示す系統図、第2図(A)
〜(D)はそのA−A−D−D断面図、第3図は製造さ
れたバンパーモールディングの斜視図である。図におい
て、1は保護フィルム、2は装飾フィルム、3はロール
コータ、4は焼付炉、5は押出成形型、6は成形品、7
はモールディングである。Figure 1 is a system diagram showing the manufacturing method of the example, Figure 2 (A)
-(D) are sectional views taken along A-A-D-D, and FIG. 3 is a perspective view of the manufactured bumper molding. In the figure, 1 is a protective film, 2 is a decorative film, 3 is a roll coater, 4 is a baking furnace, 5 is an extrusion mold, 6 is a molded product, and 7
is a molding.
モールディングの製造方法は、まず第2図(A)に示す
形状のポリテトラフルオロエチレン樹脂(テフロン)、
ポリアセタール樹脂等のウレタン系樹脂と非相溶性の樹
脂からなる耐熱性かつ弾力性を有する保護フィルム1を
ラインに供給し、ロールコータ3によりウレタン系樹脂
8を塗布して。The manufacturing method for the molding begins with polytetrafluoroethylene resin (Teflon) having the shape shown in Figure 2 (A);
A protective film 1 having heat resistance and elasticity made of a resin incompatible with urethane resin such as polyacetal resin is supplied to the line, and a urethane resin 8 is applied by a roll coater 3.
第2図(B)に示すように保護フィルム1にウレタン系
樹脂被膜9を形成し、焼付炉4で焼付を行って押出成形
型5に供給する。As shown in FIG. 2(B), a urethane resin coating 9 is formed on the protective film 1, baked in a baking oven 4, and then supplied to an extrusion mold 5.
一方、第2図(C)に示す形状の着色合成樹脂フィルム
、金属蒸着合成樹脂フィルム等の装飾フィルム2を押出
成形型5に供給し、押出機10からアイオノマー樹脂等
のオレフィン系樹脂11(溶融樹脂)を供給して押出成
形を行う。このとき第2図(D)に示すように、ウレタ
ン系樹脂被膜9がオレフィン系樹脂11に接するように
、保護フィルム1で成形品6の外表面を覆い、装飾フィ
ルム2はオレフィン系樹脂11の内部に埋設されるよう
にする。On the other hand, a decorative film 2 such as a colored synthetic resin film or a metal-deposited synthetic resin film having the shape shown in FIG. Extrusion molding is performed by supplying resin). At this time, as shown in FIG. 2(D), the outer surface of the molded product 6 is covered with the protective film 1 so that the urethane resin film 9 is in contact with the olefin resin 11, and the decorative film 2 is covered with the olefin resin 11. It will be buried inside.
こうして押出成形を行うと、ウレタン系樹脂被膜9を形
成した保護フィルム1は溶融樹脂の熱で加熱され、溶融
樹脂の圧力で成形品6の表面側に圧接された状態で押出
され、ウレタン系樹脂被膜9は成形品6の表面に転写さ
れる。また保護フィルム1は成形品6の外表面を覆い、
その弾力性により成形品6の垂れ下がり等の変形を防止
し、成形品6を所定形状に保持しなから押出成形型5を
出る。When extrusion molding is performed in this way, the protective film 1 on which the urethane resin coating 9 is formed is heated by the heat of the molten resin, and is extruded while being pressed against the surface side of the molded product 6 by the pressure of the molten resin. The coating 9 is transferred to the surface of the molded article 6. In addition, the protective film 1 covers the outer surface of the molded product 6,
Its elasticity prevents deformation such as sagging of the molded product 6, and leaves the molded product 6 out of the extrusion mold 5 while maintaining the molded product 6 in a predetermined shape.
押出成形型5を出た成形品6は切断機12により所定寸
法に切断してモールディング7とされる。The molded product 6 that has come out of the extrusion mold 5 is cut into a predetermined size by a cutting machine 12 to form a molding 7.
そして必要により、第3図に示すように、保護フィルム
1を剥離して車体に取付けるが、保護フィルム1は、運
搬1組付後に剥離してもよい。If necessary, the protective film 1 is peeled off and attached to the vehicle body, as shown in FIG. 3, but the protective film 1 may be peeled off after transportation and assembly.
こうして製造されたモールディング7は、保護フィルム
1により覆われて押出成形が行われるため、所定の形状
で製造される。またウレタン系樹脂被膜9が外表面に転
写されているため、灯油等の溶剤で処理しても曇りが発
生しない。上記実施例ではウレタン系樹脂被膜9および
オレフィン系樹脂11が透明であって、装飾フィルム2
が外表面側から透視できるようになっており、成形品6
の外表面が均一であるため、装飾フィルム2は均一に目
視され、優れた外観を有する。The molding 7 manufactured in this way is covered with the protective film 1 and extrusion molded, so that it is manufactured in a predetermined shape. Furthermore, since the urethane resin coating 9 is transferred to the outer surface, fogging does not occur even when treated with a solvent such as kerosene. In the above embodiment, the urethane resin coating 9 and the olefin resin 11 are transparent, and the decorative film 2
can be seen through from the outer surface side, and the molded product 6
Since the outer surface of the decorative film 2 is uniform, the decorative film 2 is uniformly visible and has an excellent appearance.
ウレタン系樹脂被膜9およびオレフィン系樹脂11が不
透明な場合には装飾フィルム2はなくてもよいが、代り
に芯材を埋設してもよい、保護フィルム1として平滑な
表面のものを使用すると、転写される被膜9は平滑にな
って、つやのある表面が得られ、逆に表面を粗化した保
護フィルム1を使用すると、つやのない表面が得られる
。If the urethane resin coating 9 and the olefin resin 11 are opaque, the decorative film 2 may be omitted, but a core material may be embedded instead.If a protective film 1 with a smooth surface is used, The transferred film 9 becomes smooth and has a glossy surface, whereas if the protective film 1 with a roughened surface is used, a matte surface can be obtained.
オレフィン系樹脂11としてエチレン−アクリル酸共重
合体樹脂FAA (A−201K) (三菱油化にに製
、商品名)を使用し、ウレタン系樹脂8としてポリウレ
タン樹脂であるウレタンクリア(日本ビーケミカルKK
製、商品名)を使用し、第1図ないし第3図のように製
造したモールディング7について、75℃の高温灯油を
0 、5cmの距離から7秒間噴霧し、噴霧前後の曇度
(HAZE値)を調べた結果を表1に示す。Ethylene-acrylic acid copolymer resin FAA (A-201K) (manufactured by Mitsubishi Yuka, trade name) was used as the olefin resin 11, and urethane clear (Nippon B Chemical KK), a polyurethane resin, was used as the urethane resin 8.
For the molding 7 manufactured as shown in Figs. 1 to 3 using the product manufactured by the company, product name), high temperature kerosene at 75°C was sprayed for 7 seconds from a distance of 0.5 cm, and the haze value (HAZE value) was measured before and after spraying. ) are shown in Table 1.
表1
表1において、数値が高いほど曇度が大きいことを示し
、処理なしの場合に比べて処理により曇度がゼロになる
ことがbかる。Table 1 In Table 1, the higher the value, the greater the degree of haze, and it can be seen that the degree of haze becomes zero with the treatment compared to the case without treatment.
第4図は他の実施例により製造したウィンドウモールデ
ィングを示す断面図であり、前記実施例とほぼ同様にし
て製造され、同様の効果を奏する。FIG. 4 is a sectional view showing a window molding manufactured in accordance with another embodiment, which is manufactured in substantially the same manner as in the previous embodiment and produces similar effects.
以上の実施例では製造ラインにおいて、保護フ。In the above embodiments, a protective film is used on the production line.
イルム1にウレタン系樹脂被膜9を形成したが。A urethane resin coating 9 was formed on the ilm 1.
別途被膜9を形成した保護フィルムを使用してもよい。A protective film on which a coating 9 is separately formed may also be used.
また本発明はバンパーモールディング、ウィンドウモー
ルディングに限らず、他のモールディングの製造に適用
可能である。Further, the present invention is applicable not only to bumper moldings and window moldings, but also to the manufacture of other moldings.
〔発明の効果〕
本発明によれば、保護フィルムによりウレタン系樹脂被
膜をオレフィン系樹脂成形品に転写して押出成形するよ
うにしたため、変形を防止して正常な形状に成形できる
とともに、得られた成形品は均一な表面を有し、灯油等
の溶剤により曇りが発生することがないなどの効果が得
られる。[Effects of the Invention] According to the present invention, since the urethane resin coating is transferred to the olefin resin molded product using a protective film and extrusion molded, deformation can be prevented and the product can be molded into a normal shape. The molded product has a uniform surface and has the advantage of not becoming cloudy due to solvents such as kerosene.
第1図は実施例の製造方法を示す系統図、第2図(A)
〜(D)はそのA−A−D−D断面図、第3図は製造さ
れたモールディングの斜視図、第4図は他の実施例で製
造されたモールディングの断面図である。
各図中、同一符号は同一または相当部分を示し。
1は保護フィルム、2は装飾フィルム、3はロールコー
タ、5は押出成形型、6は成形品、7はモールディング
、9はウレタン系樹脂被膜、11はオレフィン系樹脂で
ある。Figure 1 is a system diagram showing the manufacturing method of the example, Figure 2 (A)
-(D) are sectional views taken along the line A-A-D-D, FIG. 3 is a perspective view of the manufactured molding, and FIG. 4 is a sectional view of the molding manufactured in another example. In each figure, the same reference numerals indicate the same or corresponding parts. 1 is a protective film, 2 is a decorative film, 3 is a roll coater, 5 is an extrusion mold, 6 is a molded product, 7 is a molding, 9 is a urethane resin coating, and 11 is an olefin resin.
Claims (4)
してモールディングを押出成形する方法において、ウレ
タン系樹脂被膜を形成した耐熱性および弾力性を有する
保護フィルムを押出成形型に供給し、ウレタン系樹脂被
膜を成形品に圧接した状態で押出成形を行い、ウレタン
系樹脂被膜を成形品に転写することを特徴とするモール
ディングの製造方法。(1) In a method of extruding a molding by supplying a molten olefin resin to an extrusion mold, a heat-resistant and elastic protective film coated with a urethane resin is supplied to the extrusion mold, and the urethane resin is A method for manufacturing a molding, which comprises performing extrusion molding with the urethane-based resin film in pressure contact with the molded product, and transferring the urethane-based resin film to the molded product.
求の範囲第1項記載の製造方法。(2) The manufacturing method according to claim 1, wherein the olefin resin is an ethylene resin.
である特許請求の範囲第1項または第2項記載の製造方
法。(3) The manufacturing method according to claim 1 or 2, wherein the protective film is incompatible with the urethane resin.
部に埋込むようにした特許請求の範囲第1項ないし第3
項のいずれかに記載の製造方法。(4) Claims 1 to 3 in which a decorative film or core material is embedded inside the molded product during extrusion molding.
The manufacturing method described in any of paragraphs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60268739A JPS62128727A (en) | 1985-11-29 | 1985-11-29 | Manufacture of molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60268739A JPS62128727A (en) | 1985-11-29 | 1985-11-29 | Manufacture of molding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62128727A true JPS62128727A (en) | 1987-06-11 |
Family
ID=17462669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60268739A Pending JPS62128727A (en) | 1985-11-29 | 1985-11-29 | Manufacture of molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62128727A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02267040A (en) * | 1989-04-07 | 1990-10-31 | Tokai Kogyo Kk | Edge structure of molding for vehicle and its processing |
-
1985
- 1985-11-29 JP JP60268739A patent/JPS62128727A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02267040A (en) * | 1989-04-07 | 1990-10-31 | Tokai Kogyo Kk | Edge structure of molding for vehicle and its processing |
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