JPH0383635A - Manufacture of resin-covered metal sheet having embossed pattern - Google Patents
Manufacture of resin-covered metal sheet having embossed patternInfo
- Publication number
- JPH0383635A JPH0383635A JP22227489A JP22227489A JPH0383635A JP H0383635 A JPH0383635 A JP H0383635A JP 22227489 A JP22227489 A JP 22227489A JP 22227489 A JP22227489 A JP 22227489A JP H0383635 A JPH0383635 A JP H0383635A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- polyvinyl chloride
- embossing
- melting point
- layer
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011347 resin Substances 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 48
- 238000004049 embossing Methods 0.000 claims abstract description 25
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 25
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000002844 melting Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 15
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 description 24
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、家庭電気製品などの外装に用いる樹脂被覆金
属板に、光沢のあるエンボス柄を付与する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for imparting a glossy embossed pattern to a resin-coated metal plate used for the exterior of household electrical appliances.
（従来技術とその課題）
樹脂被覆金属板は、建材、事務用家具、家庭電気製品の
外装などに広く用いられており、特に、被覆樹脂として
安価で諸性能の優れたポリ塩化ビニル樹脂を用いた、い
わゆる塩ビ鋼板が多用されている。(Prior art and its problems) Resin-coated metal plates are widely used as building materials, office furniture, and the exterior of home appliances.In particular, polyvinyl chloride resin, which is inexpensive and has excellent performance, is used as the coating resin. So-called PVC steel sheets are often used.
また、装飾・意匠性を高めるために、被覆樹脂にエンボ
ス柄（凹凸模様）を付けることも行われている。ところ
が従来は、得られるエンボス柄が艷のない、白っぽい外
観となり、光沢外観が好まれる用途には適さなかった。Furthermore, in order to enhance the decoration and design, an embossed pattern (an uneven pattern) is also added to the resin coating. However, in the past, the resulting embossed pattern had a whitish appearance with no ridges, making it unsuitable for applications where a glossy appearance was preferred.
すなわちエンボス加工は、例えば第４図に示すような断
面形状のエンボスロールＲにより行うが、ロールＲの凹
部Ｒ１および凸部Ｒ２を研磨やメツキにより表面仕上げ
しても完全な鏡面にすることができず、ロールの表面に
微細な「荒れ」が残る。That is, the embossing process is carried out using an embossing roll R having a cross-sectional shape as shown in FIG. 4, for example, but even if the recesses R1 and the protrusions R2 of the roll R are finished by polishing or plating, a perfect mirror surface cannot be achieved. However, fine "roughness" remains on the surface of the roll.
そして、この荒れが被覆樹脂に転写されて、光線を乱反
射し白っぽい外観を与える。This roughness is then transferred to the coating resin, which diffusely reflects light and gives it a whitish appearance.
特に、エンボスロールの凹部Ｒ１のコーナ一部Ｒ１１は
研磨仕上げが困難なため荒れが残り易く、その結果、エ
ンボス柄の輪郭（凹部と凸部の境界）が白っぽく見えて
、柄がぼやけてしまう。In particular, the corner portion R11 of the recessed portion R1 of the embossing roll is difficult to polish and is likely to remain rough, and as a result, the outline of the embossed pattern (the boundary between the recessed portion and the convex portion) appears whitish and the pattern becomes blurred.
この現象を軽減するには、エンボス温度を低くすること
が考えられるが、そうすると鮮明なエンボス柄が得られ
なくなる。In order to reduce this phenomenon, it is possible to lower the embossing temperature, but if this is done, a clear embossed pattern cannot be obtained.
（課題を解決するための手段）
本発明は、従来の上記問題点を解決し、光沢のあるエン
ボス柄を形成する方法を提供するものであって、ポリ塩
化ビニル樹脂層の表面に薄い高融点樹脂層を積層して樹
脂被覆層とし、これをポリ塩化ビニル樹脂のエンボス適
温で高融点樹脂層側からエンボス加工することを特徴と
するものである。(Means for Solving the Problems) The present invention solves the above-mentioned conventional problems and provides a method for forming a glossy embossed pattern on the surface of a polyvinyl chloride resin layer. It is characterized in that resin layers are laminated to form a resin coating layer, and this is embossed from the high melting point resin layer side at an appropriate temperature for embossing polyvinyl chloride resin.
以下、本発明を図面と共に詳しく説明する。Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図は、本発明方法により得られる樹脂被覆金属板の
断面図、第２図はその平面図、第３図は本発明方法で得
られる別の樹脂被覆金属板の断面図、第４図はエンボス
ロールの断面図である。FIG. 1 is a cross-sectional view of a resin-coated metal plate obtained by the method of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a cross-sectional view of another resin-coated metal plate obtained by the method of the present invention, and FIG. is a sectional view of the embossing roll.
以下、本発明方法の一例を工程順に説明すると、内層と
なるポリ塩化ビニル（以下ｒＰＶＣＪという）のシート
２と、外層となる高融点樹脂フィルム３とを接着剤４に
より積層する。ＰｖＣシート２は、通常被覆金属板に用
いられるもので良く、硬質、半硬質あるいは軟質のシー
トを用いることができ、厚さは通常１００〜３００μｍ
、好ましくは１５０−２５０μｍである。Hereinafter, an example of the method of the present invention will be explained in order of steps. A polyvinyl chloride (rPVCJ) sheet 2 serving as an inner layer and a high melting point resin film 3 serving as an outer layer are laminated with an adhesive 4. The PvC sheet 2 may be one normally used for coated metal plates, and can be a hard, semi-hard or soft sheet, and has a thickness of usually 100 to 300 μm.
, preferably 150-250 μm.
高融点樹脂フィルム（以下「フィルム」という）３は、
ＰＶＣシート２のエンボス適温よりも３０℃以上高い融
点を有するものを用いる。The high melting point resin film (hereinafter referred to as “film”) 3 is
A material having a melting point 30° C. or more higher than the appropriate embossing temperature of the PVC sheet 2 is used.
ここで、ＰＶＣシート２のエンボス適温は、Ｐ■Ｃの組
成により若干異なるが１５０〜２００℃の範囲にあり、
特に１７０℃近辺が最適である。Here, the suitable embossing temperature of the PVC sheet 2 is in the range of 150 to 200°C, although it varies slightly depending on the composition of P■C.
In particular, a temperature around 170°C is optimal.
従って、フィルム３としては、融点が２００℃以上、好
ましくは２３０℃以上のものを用いる。Therefore, the film 3 used has a melting point of 200°C or higher, preferably 230°C or higher.
具体的には、ポリエチレンテレフタレート（融点２６０
°Ｃ）、ポリブチレンテレフタレート（２２５℃）、ポ
リ−４−メチルペンテン−１（２４０℃）などがある。Specifically, polyethylene terephthalate (melting point 260
°C), polybutylene terephthalate (225 °C), poly-4-methylpentene-1 (240 °C), etc.
フィルム３の厚さは、ＰｖＣシート２の厚さの１７４以
下とすることが重要であり、１０〜２５μｍの範囲が好
適である。It is important that the thickness of the film 3 is 174 mm or less of the thickness of the PvC sheet 2, and is preferably in the range of 10 to 25 μm.
フィルム３の厚さがＰＶＣシート２の厚さの１７４より
も大きいと、後続のエンボス加工によっても鮮明なエン
ボス柄が得られない。If the thickness of the film 3 is larger than the thickness of the PVC sheet 2 (174 mm), a clear embossed pattern cannot be obtained even in the subsequent embossing process.
このフィルム３としては、通常の押出成形やカレンダ成
形により得られる透明で表面平滑なものを用い、また前
述の通り薄いものが好ましいので、延伸・熱固定された
フィルムが好適である。As the film 3, a transparent film with a smooth surface obtained by ordinary extrusion molding or calender molding is used, and as mentioned above, a thin film is preferable, so a stretched and heat-set film is suitable.
接着剤４としては、通常のポリウレタン系接着剤などを
用いることができ、好適にはフィルム３側に塗布してＰ
ＶＣシート２を積層する。As the adhesive 4, a normal polyurethane adhesive or the like can be used, preferably by applying it to the film 3 side and
VC sheets 2 are laminated.
次に、この積層された樹脂被覆層をエンボス加工して、
凹部８と凸部９とからなるエンボス柄を形成する。Next, this laminated resin coating layer is embossed,
An embossed pattern consisting of concave portions 8 and convex portions 9 is formed.
エンボスは、フィルム３側から、ＰｖＣシート２のエン
ボス適温で行う。Embossing is performed from the film 3 side at an appropriate temperature for embossing the PvC sheet 2.
すると、フィルム３は厚さが薄いので、押圧力がｐｖｃ
シート２に伝わってｐｖｃシート２に凹凸模様が形成さ
れる。Then, since the film 3 is thin, the pressing force is
This is transmitted to the sheet 2 and an uneven pattern is formed on the PVC sheet 2.
一方フイルム３は、加熱下で押圧され、また接着剤によ
りＰｖＣシート２に密着しているため、ＰＶＣシート２
の変形に追随して変形し、凹凸状になる。On the other hand, the film 3 is pressed under heat and adheres to the PVC sheet 2 with adhesive.
It deforms following the deformation of , and becomes uneven.
しかしフィルム３は、その融点よりも十分低い温度で押
圧されることになるから、その表面は溶融せず、したが
ってエンボスロールの表面に微細な荒れがあってもフィ
ルム３に転写されることがない、従って、フィルム３の
表面は本来の光沢のある状態を維持する。However, since the film 3 is pressed at a temperature well below its melting point, its surface will not melt, and therefore even if there is a minute roughness on the surface of the embossing roll, it will not be transferred to the film 3. Therefore, the surface of the film 3 maintains its original glossy state.
エンボスは、ＰＶＣシートのエンボス適温、すなわち１
５０〜２００℃の範囲で行う。１５０℃未満ではエンボ
ス模様が十分転写されず、また２００℃を越えるとＰＶ
Ｃシートが軟化しすぎて、しわやロールへの粘着などの
トラブルが生じやすく、また、フィルム３が軟化して前
述の理由で光沢が低下し易くなる。好適なエンボス温度
は通常１７０°Ｃ前後である。The embossing is performed at the appropriate temperature for embossing the PVC sheet, i.e. 1
It is carried out at a temperature of 50 to 200°C. If the temperature is less than 150℃, the embossed pattern will not be transferred sufficiently, and if it exceeds 200℃, the PV
The C sheet becomes too soft and tends to cause problems such as wrinkles and adhesion to the roll.Furthermore, the film 3 becomes too soft and its gloss tends to decrease for the reasons mentioned above. A suitable embossing temperature is usually around 170°C.
エンボスの深さは、２０〜２５０μｍ程度である。The depth of the embossing is approximately 20 to 250 μm.
最後にエンボスされた樹脂被覆層を接着剤６により金属
板５に貼り合わせる。Finally, the embossed resin coating layer is bonded to the metal plate 5 using an adhesive 6.
金属板５としては、鋼板、アルミ板、ステンレス板など
があり、亜鉛めっき、クロム酸処理などの表面処理をし
たものでもよい。The metal plate 5 may be a steel plate, an aluminum plate, a stainless steel plate, etc., and may be surface-treated with zinc plating, chromic acid treatment, or the like.
得られる樹脂被覆金属板１は、第１図に示すように、主
にＰＶＣシート２に凹凸が形成され、表面のフィルム３
はあまり厚さが変化せず、ＰＶＣシート２の表面に沿っ
て屈曲した状態となる。As shown in FIG. 1, the obtained resin-coated metal plate 1 mainly has irregularities formed on the PVC sheet 2, and a film 3 on the surface.
The thickness does not change much, and the sheet is bent along the surface of the PVC sheet 2.
なお以上の説明では、予めエンボス加工した樹脂被覆層
を金属板に貼り合わせたが、ｌ！ｌＷ＠被覆層を金属板
に貼り合わせた後にエンボス加工を行うこともできる。In the above explanation, a pre-embossed resin coating layer was attached to a metal plate, but l! It is also possible to perform embossing after laminating the lW@coating layer to the metal plate.
またＰＶＣシートに代えて、ゾル法によりＰＶＣ塗膜を
形成してもよい。Moreover, instead of a PVC sheet, a PVC coating film may be formed by a sol method.
第３図は、本発明方法で得られる別の樹脂被覆金属板の
断面図であって、凹部８または凸部９のいずれか一方（
図では凹部〉をマット（艶消し）状としたものである。FIG. 3 is a cross-sectional view of another resin-coated metal plate obtained by the method of the present invention, in which either the recesses 8 or the projections 9 (
In the figure, the recesses are matte (matte).
この様なものを得るには、凹部Ｒを鏡面仕上げし、凸部
Ｒ２をマット仕上げしたエンボスロールＲを用いればよ
い。この場合にもロールの凹部Ｒ１、凸部Ｒ２には微細
な荒れが残るが、表面のフィルム３にはロールの荒れが
転写されない。In order to obtain such a product, it is sufficient to use an embossing roll R in which the concave portions R are mirror-finished and the convex portions R2 are matte-finished. In this case as well, fine roughness remains in the recessed portions R1 and convex portions R2 of the roll, but the roughness of the roll is not transferred to the film 3 on the surface.
そして、樹脂被覆層の凸部９が光沢面となり、凹部８が
マット面になって、コントラストの際立った意匠性の高
い樹脂被覆金属板ｌが得られる。Then, the convex portions 9 of the resin coating layer have a glossy surface, and the concave portions 8 have a matte surface, thereby obtaining a resin-coated metal plate l with a high contrast and high design quality.
このように本発明方法によれば、フィルム３表面にロー
ルＲのｙ＆細な荒れを転写させることなくエンボス柄を
形成できるから、得られるエンボス柄は光沢に優れたも
のとなる。As described above, according to the method of the present invention, an embossed pattern can be formed without transferring the y&fine roughness of the roll R onto the surface of the film 3, so that the obtained embossed pattern has excellent gloss.
本発明方法は、エンボス柄の白っぽさが目立ちやすい黒
などの濃色板の製造に特に効果的であり、例えば、冷蔵
庫の扉のような意匠性が重視される分野に適している。The method of the present invention is particularly effective for manufacturing dark-colored boards such as black, where the whitishness of the embossed pattern is easily noticeable, and is suitable for fields where design is important, such as refrigerator doors, for example.
（発明の効果〉 本発明方法によれば、次のような効果が得られる。(Effect of the invention> According to the method of the present invention, the following effects can be obtained.
１）白っぽさのない、光沢があって輪郭が鮮明なエンボ
ス柄が得られる。1) An embossed pattern with no whitishness, gloss and clear outlines can be obtained.
２）特に、エンボス柄の凹部または凸部の一方をマット
調にした場合には、光沢面とマット面のコントラストが
鮮やかな板が得られる。2) In particular, when one of the concave portions or convex portions of the embossed pattern is made matte, a board with a vivid contrast between the glossy surface and the matte surface can be obtained.
３）表面にフィルムが存在することにより、エンボス柄
が立体感をもって見える。3) The presence of the film on the surface gives the embossed pattern a three-dimensional appearance.
４）フィルムは、一般にＰｖＣよりも耐汚染性（汚れが
付きにくい）、傷付き防止性が優れているため、金属板
にこれらの性能が付与されると共に、フィルムがほぼ均
一な厚さを保ち薄肉部が生じないので、エンボス柄を形
成しても、これらの性能が低下しない。4) Film generally has better stain resistance (hard to get dirty) and scratch resistance than PvC, so these properties are imparted to the metal plate, and the film maintains a nearly uniform thickness. Since no thin-walled portions are formed, these performances do not deteriorate even if an embossed pattern is formed.
第１図は、本発明方法により得られる樹脂被覆金属板の
断面図、第２図はその平面図、第３図は本発明方法で得
られる別の樹脂被覆金属板の断面図、第４図はエンボス
ロールの断面図
１・・・樹脂被覆金属板 ２・・・内層３・・・外層
５・・・金属板
８・・・エンボス柄の凹部
９・・・エンボス柄の凸部
第
１
図
！
第２図
第３
図
第４
図FIG. 1 is a cross-sectional view of a resin-coated metal plate obtained by the method of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a cross-sectional view of another resin-coated metal plate obtained by the method of the present invention, and FIG. is a cross-sectional view of the embossing roll 1...resin coated metal plate 2...inner layer 3...outer layer 5...metal plate 8...recessed portion of embossed pattern 9...protrusion of embossed pattern Fig. 1 ! Figure 2 Figure 3 Figure 4
Claims (1)
脂のエンボス適温よりも３０℃以上高い融点を有し、か
つ厚さがポリ塩化ビニル樹脂層の厚さの１／４以下の高
融点樹脂からなる外層とを積層して樹脂被覆層を構成し
、その樹脂被覆層を、金属板への被覆前または被覆後に
、ポリ塩化ビニル樹脂のエンボス適温で高融点樹脂層側
からエンボス加工することを特徴とするエンボス柄を有
する樹脂被覆金属板の製法。[Scope of Claim] A method for producing a resin-coated metal plate having an embossed pattern, comprising: an inner layer made of polyvinyl chloride resin, a melting point higher than the appropriate embossing temperature of the polyvinyl chloride resin by 30°C or more, and a thickness of A resin coating layer is formed by laminating an outer layer made of a high melting point resin with a thickness of 1/4 or less of the thickness of the polyvinyl chloride resin layer, and the resin coating layer is coated with polyvinyl chloride before or after coating the metal plate. Embossing of vinyl chloride resin A method for manufacturing a resin-coated metal plate having an embossed pattern, which is characterized by embossing from the high melting point resin layer side at an appropriate temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22227489A JPH0383635A (en) | 1989-08-29 | 1989-08-29 | Manufacture of resin-covered metal sheet having embossed pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22227489A JPH0383635A (en) | 1989-08-29 | 1989-08-29 | Manufacture of resin-covered metal sheet having embossed pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0383635A true JPH0383635A (en) | 1991-04-09 |
Family
ID=16779809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22227489A Pending JPH0383635A (en) | 1989-08-29 | 1989-08-29 | Manufacture of resin-covered metal sheet having embossed pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0383635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997006955A1 (en) * | 1995-08-11 | 1997-02-27 | Basf Lacke Und Farben Aktiengesellschaft | Device for the coating of metal strips |
| DE19806071C2 (en) * | 1998-02-14 | 2003-02-27 | Forschungszentrum Juelich Gmbh | embossing process |
| JP2009113274A (en) * | 2007-11-05 | 2009-05-28 | Toppan Printing Co Ltd | Decorative sheet |
-
1989
- 1989-08-29 JP JP22227489A patent/JPH0383635A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997006955A1 (en) * | 1995-08-11 | 1997-02-27 | Basf Lacke Und Farben Aktiengesellschaft | Device for the coating of metal strips |
| US6083336A (en) * | 1995-08-11 | 2000-07-04 | Basf Coatings Ag | Device for the coating of metal strips |
| DE19806071C2 (en) * | 1998-02-14 | 2003-02-27 | Forschungszentrum Juelich Gmbh | embossing process |
| JP2009113274A (en) * | 2007-11-05 | 2009-05-28 | Toppan Printing Co Ltd | Decorative sheet |
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