JP2684642B2 - Method for manufacturing vinyl chloride resin laminated steel sheet - Google Patents
Method for manufacturing vinyl chloride resin laminated steel sheetInfo
- Publication number
- JP2684642B2 JP2684642B2 JP1325597A JP32559789A JP2684642B2 JP 2684642 B2 JP2684642 B2 JP 2684642B2 JP 1325597 A JP1325597 A JP 1325597A JP 32559789 A JP32559789 A JP 32559789A JP 2684642 B2 JP2684642 B2 JP 2684642B2
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- chloride resin
- steel sheet
- coating film
- weight
- 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.)
- Expired - Lifetime
Links
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- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、塗膜硬度が高く、エンボス模様の鮮明な塩
化ビニル樹脂積層鋼板の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing a vinyl chloride resin laminated steel sheet having a high coating film hardness and a clear embossed pattern.
（従来技術） 従来、塩化ビニル樹脂積層鋼板の製造は、鋼板に前処
理を施して、塩化ビニル樹脂フィルムを貼付ける方法
と、例えば、アクリル変性エポキシ樹脂系などの下塗り
塗膜を形成後塩化ビニル樹脂プラスチゾル塗料を塗装し
て加熱焼付する方法とにより行なわれている。前者の方
法で製造する際、フィルムに意匠性の高い模様の印刷し
たものや可塑剤添加量の少ないものを使用すれば、外
観、塗膜硬度、耐汚染性に優れた製品を製造できるの
で、内装建材や器物に使用する場合にはこの方法によっ
ている。一方、後者の方法は、このようなことが困難な
ため、外観、塗膜硬度、耐汚染性が劣る製品しか製造で
きない。このため、製品は内装建材や器物にはあまり使
用されず、主として外装建材に使用されている。(Prior Art) Conventionally, a vinyl chloride resin laminated steel sheet is manufactured by a method in which a steel sheet is subjected to a pretreatment and a vinyl chloride resin film is attached, and a vinyl chloride resin is formed after an undercoat coating film such as an acrylic modified epoxy resin system is formed. It is carried out by applying a resin plastisol paint and heating and baking. When using the former method, if a film with a highly patterned design or a plasticizer addition amount is used in the film, it is possible to produce a product with excellent appearance, coating film hardness, and stain resistance. This method is used when used for interior building materials and equipment. On the other hand, the latter method is difficult to do so, and thus only a product having poor appearance, coating film hardness, and stain resistance can be produced. For this reason, the products are rarely used for interior building materials and articles, but are mainly used for exterior building materials.
（発明が解決しようとする問題点） しかし、前者の方法で製造したものは高価なため、後
者の方法での製造の際に塗膜硬度や耐汚染性を改善した
プラスチゾル塗料を用いて、エンボス加工を施すことに
より意匠性を付与する方法が従来より試みられている。
例えば、（１）プラスチゾル塗料に不飽和結合を有する
可塑剤または熱硬化性樹脂や硬質樹脂を添加する方法、
（２）プラスチゾル塗料を塗装後硬度や耐汚染性に優れ
た電子線硬化型樹脂塗料を塗装し、電子線で硬化させる
方法などである。(Problems to be solved by the invention) However, since the one produced by the former method is expensive, the plastisol paint having improved coating hardness and stain resistance during the production by the latter method is used for embossing. Conventionally, a method of giving designability by processing has been tried.
For example, (1) a method of adding a plasticizer having an unsaturated bond or a thermosetting resin or a hard resin to the plastisol coating material,
(2) A method in which after coating the plastisol coating material, an electron beam curing type resin coating material having excellent hardness and stain resistance is coated and cured with an electron beam.
しかし、（１）の方法は、加熱焼付により塗膜硬度が
高くなってしまうため、加熱焼付直後の塗膜温度の高い
うちにエンボス加工を施しても、鮮明なるエンボス模様
にすることが困難であった。このため、意匠性の劣る塗
膜表面の平滑な製品の製造にしか適用できないものであ
った。また、（２）の方法によりエンボス模様を有する
製品を製造する場合も、エンボス加工は、塗膜温度の高
い電子線硬化塗膜形成前に行なわなければならないの
で、エンボス加工を施してもエンボス模様が電子線硬化
塗膜で覆われ、模様が不鮮明になってしまうものであっ
た。また、エンボス加工で低下した光沢が再び高くなる
ため、意匠性が劣ってしまうものであった。However, in the method (1), the coating hardness becomes high due to heating and baking. Therefore, it is difficult to obtain a clear embossed pattern even if embossing is performed while the coating temperature is high immediately after heating and baking. there were. Therefore, it can be applied only to the production of a product having a smooth coating film surface having a poor design. Also, in the case of producing a product having an embossed pattern by the method (2), the embossing must be performed before the electron beam cured coating film having a high coating temperature is formed. Was covered with an electron beam cured coating film, and the pattern became unclear. In addition, the gloss decreased by the embossing process becomes high again, resulting in poor design.
エンボス加工時には塗膜硬度が低く、しかも、エンボ
ス加工後に塗膜硬度を高くしてもエンボス模様を鮮明に
保つことができるようにするには、プラスチゾル塗料に
反応性エチレン結合を有するモノマーを添加して、エン
ボス加工後に電子線を照射して、モノマーを塩化ビニル
樹脂と架橋反応させる方法が考えられる。例えば、特公
昭35-17694号公報に開示された塩化ビニル重合体に少な
くとも２個の反応性エチレン結合を有する可塑化性添加
物を添加し、重合体と添加物とを高エネルギー放射線照
射により架橋させる方法を塩化ビニル樹脂積層鋼板の製
造に適用するとか、その製造の際に特開昭48-640号公報
に開示された少なくとも２個の反応性エチレン結合を有
する多官能添加物とポリエステル重合体を添加した架橋
塩化ビニル重合体組成物を使用する方法である。To ensure that the coating hardness is low during embossing and that the embossed pattern can be kept clear even if the coating hardness is increased after embossing, add a monomer having a reactive ethylene bond to the plastisol paint. Then, a method of irradiating with an electron beam after the embossing to cross-link the monomer with the vinyl chloride resin can be considered. For example, a plasticizing additive having at least two reactive ethylene bonds is added to the vinyl chloride polymer disclosed in JP-B-35-17694, and the polymer and the additive are crosslinked by irradiation with high energy radiation. The method described above is applied to the production of a vinyl chloride resin laminated steel sheet, or a polyfunctional additive having at least two reactive ethylene bonds and a polyester polymer disclosed in JP-A-48-640 during the production. Is a method of using a crosslinked vinyl chloride polymer composition to which is added.
しかし、これらの方法は120℃あるいは150℃という比
較的低い温度で成形するシートやチューブなどに使用す
る組成物に関するものであり、加熱焼付温度が通常200
〜250℃で、焼付時間が45〜90秒である塩化ビニル樹脂
積層鋼板の製造にはそのまま適用できない。例えば、反
応性エチレン結合を２個有するモノマーとして掲げられ
ているエチレングリコールジ（メタ）アクリレート、ジ
エチレングリコールジ（メタ）アクリレート、トリエチ
レングリコールジ（メタ）アクリレート、テトラエチレ
ングリコールジ（メタ）アクリレート、ジエチレングリ
コールジビニルエーテル、ビニル（メタ）アクリレー
ト、アリル（メタ）アクリレートなどは沸点が低いた
め、塩化ビニル樹脂積層鋼板製造の場合、いずれも焼付
時に蒸発して含有量が減少するため、塗膜硬度が十分改
善されない。また、上記モノマーより分子量の大きいモ
ノマーを使用すれば、焼付時の蒸発は抑制できるが、二
重結合当量が増大するため、電子線による架橋効率が低
下し、塗膜硬度の向上が認められず、しかも、溶解度パ
ラメーターが9.5（cal/cm3）0.5を越えるため、塩化ビ
ニル樹脂［溶解度パラメーター9.3（cal/cm3）0.5］お
よび可塑剤［同、一般には8.5〜9.5（cal/cm3）0.5］と
の相溶性が低下し、塗膜の力学的特性が著しく低下す
る。さらに、二重結合には、アリル基、ビニル基なども
あるが、これらは電子線感受性が低く、効率的に架橋で
きず、十分なる塗膜硬度向上が認められない。However, these methods relate to a composition used for a sheet or a tube molded at a relatively low temperature of 120 ° C. or 150 ° C.
It cannot be applied as it is to the production of vinyl chloride resin laminated steel sheet having a baking time of 45 to 90 seconds at ~ 250 ° C. For example, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, diethylene glycol listed as monomers having two reactive ethylene bonds. Divinyl ether, vinyl (meth) acrylate, allyl (meth) acrylate, etc. have low boiling points, so in the case of vinyl chloride resin laminated steel sheet production, all of them evaporate during baking and the content decreases, so the coating hardness is sufficiently improved. Not done. Further, if a monomer having a larger molecular weight than the above-mentioned monomer is used, evaporation at the time of baking can be suppressed, but since the double bond equivalent increases, the crosslinking efficiency by electron beam decreases, and the improvement of coating film hardness is not recognized. Moreover, since the solubility parameter exceeds 9.5 (cal / cm 3 ) 0.5 , vinyl chloride resin [solubility parameter 9.3 (cal / cm 3 ) 0.5 ] and plasticizer [the same, generally 8.5 to 9.5 (cal / cm 3 )] 0.5 ] and the mechanical properties of the coating film are significantly reduced. Further, the double bond also has an allyl group, a vinyl group, etc., but these have low electron beam sensitivity, cannot be efficiently crosslinked, and a sufficient improvement in coating film hardness cannot be recognized.
本発明は、このような問題を解決した塩化ビニル樹脂
積層鋼板の製造方法を提供するものである。The present invention provides a method for manufacturing a vinyl chloride resin laminated steel sheet, which solves such a problem.
（問題点を解決するための手段） 本発明は、鋼板表面に溶解度パラメーターが8.5〜10.
0（cal/cm3）0.5のポリエステル系樹脂下塗り塗膜を形
成した後、アクリロイル基またはメタクリロイル基を３
個以上有する溶解度パラメーター8.5〜9.5（cal/cm3）
0.5のモノマーと可塑剤とを含有し、モノマー配合量が
重量で可塑剤の1.0〜3.0倍である塩化ビニル樹脂プラス
チゾル塗料を塗装して加熱焼付することにより上塗り塗
膜を形成し、その後、エンボス加工を施して電子線を３
〜10Mrad照射する方法により塩化ビニル樹脂積層鋼板を
製造するようにした。(Means for Solving Problems) The present invention has a solubility parameter of 8.5 to 10.
After forming a polyester resin undercoating film of 0 (cal / cm 3 ) 0.5 , add 3 acryloyl groups or methacryloyl groups.
Solubility parameter of 8.5 or more (cal / cm 3 )
A top coat film is formed by applying a vinyl chloride resin plastisol paint containing 0.5 monomer and a plasticizer and having a monomer content of 1.0 to 3.0 times the weight of the plasticizer and baking it, and then embossing. Processed and electron beam 3
A vinyl chloride resin laminated steel sheet was manufactured by a method of irradiating ~ 10 Mrad.
（作用） 本発明で使用する鋼板は、冷延鋼板、亜鉛めっき鋼
板、アルミめっき鋼板、複合めっき鋼板、ステンレス鋼
板など従来より使用されているもののほか、他の鋼板で
もよい。(Operation) The steel sheet used in the present invention may be a cold-rolled steel sheet, a galvanized steel sheet, an aluminized steel sheet, a composite-plated steel sheet, a stainless steel sheet, or the like conventionally used, or may be another steel sheet.
鋼板に下塗り塗膜を形成するにあたっては、脱脂、化
成処理などの前処理を通常施すが、鋼板の表面状態によ
っては一部または全部を省略することも可能である。In forming the undercoat coating film on the steel sheet, pretreatment such as degreasing and chemical conversion treatment is usually performed, but it is possible to omit a part or all depending on the surface condition of the steel sheet.
下塗り塗膜の形成は、通常、ポリエステル系樹脂塗料
を塗装し、加熱焼付することにより行う。この塗料に
は、着色顔料や体質顔料などを添加してもよいが、樹脂
としては、溶解度パラメーターが8.5〜10.0（cal/cm3）
0.5のものを使用する。下塗り塗膜の樹脂や溶解度パラ
メーターをこのように限定するのは、上塗りのプラスチ
ゾル塗料に添加するモノマーの性質との関係からであ
る。膜厚は特に限定されるものでないが、３〜10μｍに
するのが好ましい。The undercoat coating film is usually formed by applying a polyester resin coating and baking it. Coloring pigments and extender pigments may be added to this paint, but as a resin, the solubility parameter is 8.5-10.0 (cal / cm 3 )
Use the one with 0.5 . The reason why the resin and the solubility parameter of the undercoat coating film are limited in this way is due to the relationship with the properties of the monomer added to the overcoat plastisol coating material. The film thickness is not particularly limited, but it is preferably 3 to 10 μm.
上塗り塗膜の塩化ビニル樹脂塗膜の形成は、プラスチ
ゾル塗料として、通常配合する可塑剤のほかにアクリロ
イル基またはメタクリロイル基を３個以上有する溶解度
パラメーター8.5〜9.5（cal/cm3）0.5のモノマーを重量
で可塑剤の1.0〜3.0倍添加したものを用いて、それを塗
装、加熱焼付することにより行う。To form a vinyl chloride resin coating film as a top coating film, as a plastisol coating material, in addition to the plasticizer usually blended, a monomer having a solubility parameter of 8.5 to 9.5 (cal / cm 3 ) 0.5 and having at least 3 acryloyl groups or methacryloyl groups is used. It is carried out by applying 1.0 to 3.0 times the weight of the plasticizer by weight, painting it, and baking it.
プラスチゾル塗料への添加モノマーの溶解度パラメー
ターを上記のようにしたのは、塩化ビニル樹脂や可塑剤
と相溶し易くするためであり、また、アクリロイル基ま
たはメタクリロイル基を３個以上有するものにしたの
は、高沸点のものにして、加熱焼付時の蒸発を抑制する
とともに、二重結合当量を小さくして、電子線による架
橋効率を高め、高い硬度の塗膜が得られるようにするた
めである。このようなモノマーを例示すれば、トリメチ
ロールプロパントリ（メタ）アクリレートおよびその誘
導体、ペンタエリスリトールトリ（メタ）アクリレート
およびその誘導体、ペンタエリスリトールテトラ（メ
タ）アクリレートおよびその誘導体などがある。The solubility parameter of the added monomer to the plastisol coating is set as described above in order to make it easily compatible with the vinyl chloride resin and the plasticizer, and to have three or more acryloyl groups or methacryloyl groups. The reason is that it has a high boiling point and suppresses evaporation at the time of heating and baking, and also reduces the double bond equivalent to increase the cross-linking efficiency by the electron beam, so that a coating film with high hardness can be obtained. . Examples of such monomers include trimethylolpropane tri (meth) acrylate and its derivatives, pentaerythritol tri (meth) acrylate and its derivatives, pentaerythritol tetra (meth) acrylate and its derivatives, and the like.
モノマーの添加量を重量で可塑剤の1.0〜3.0倍にした
のは、1.0未満であると、塩化ビニル樹脂塗膜との架橋
密度が低いため、充分な硬度、耐汚染性が得られず、3.
0倍を越えると、硬度が著しく高くなって、加工性が損
なわれ、折り曲げ加工などでクラックが発生してしまう
からである。The amount of the monomer added was made 1.0 to 3.0 times the weight of the plasticizer by weight. If it is less than 1.0, the crosslinking density with the vinyl chloride resin coating film is low, so sufficient hardness and stain resistance cannot be obtained. 3.
If it exceeds 0 times, the hardness will be remarkably increased, the workability will be impaired, and cracks will be generated during bending and the like.
従来より使用されている塩化ビニル樹脂プラスチゾル
塗料の一般的なものは、配合が塩化ビニル樹脂100重量
部、可塑剤20〜50重量部、安定剤１〜10重量部、顔料10
〜50重量部、要すれば希釈溶剤５〜50重量部であるの
で、モノマーの添加量は、20〜150重量部となる。A typical vinyl chloride resin plastisol paint that has been conventionally used has a composition of 100 parts by weight of vinyl chloride resin, 20 to 50 parts by weight of a plasticizer, 1 to 10 parts by weight of a stabilizer, and 10 parts of a pigment.
The amount of the monomer to be added is 20 to 150 parts by weight, because the amount is ˜50 parts by weight, and optionally 5 to 50 parts by weight of the diluting solvent.
上塗り塗膜を下塗り塗膜の上に塗装すると、モノマー
は、加熱焼付の際下塗り塗膜との界面に移行するが、モ
ノマーと下塗り塗膜とは、ともにエステル結合を有し、
しかも、溶解度パラメーターは同一もしくは近似してい
るので、下塗り塗膜と相溶し易い。従って、後にモノマ
ーを架橋させた場合、下塗り塗膜と上塗り塗膜との接着
力は著しく大きくなる。下塗り塗膜の樹脂が他のもの
（例えば、エポキシ樹脂、フェノキシ系樹脂など）であ
ったり、溶解度パラメーターが前記範囲から外れたもの
であると、上塗り塗膜との接着力が劣る。When the top coating film is applied onto the undercoating film, the monomer moves to the interface with the undercoating film during heating and baking, but the monomer and the undercoating film both have an ester bond,
Moreover, since the solubility parameters are the same or similar, they are easily compatible with the undercoat film. Therefore, when the monomer is cross-linked later, the adhesive force between the undercoat coating film and the topcoat coating film becomes significantly large. If the resin of the undercoating film is other resin (for example, epoxy resin, phenoxy resin, etc.) or the solubility parameter is out of the above range, the adhesion with the overcoating film is poor.
なお、下塗り塗膜および上塗り塗膜の膜厚は特に限定
されるものでないが、前者の場合３〜10μｍに、後者の
場合30〜250μｍにするのが好ましい。塗膜形成は、ロ
ールコーター法、カーテンフロー法など公知方法で可能
である。The thickness of the undercoating film and the topcoating film is not particularly limited, but is preferably 3 to 10 μm in the former case and 30 to 250 μm in the latter case. The coating film can be formed by a known method such as a roll coater method or a curtain flow method.
プラスチゾル塗料を加熱焼付した後には、塗膜温度の
高いうちにエンボス加工を施し、その後電子線を照射し
てモノマーと塩化ビニル樹脂とを架橋させる。プラスチ
ゾル塗料に添加したモノマーは、電子線硬化型であるの
で、プラスチゾル塗料の加熱焼付には、架橋反応を起こ
さず、エンボス加工で容易に模様を施すことができる。
また、電子線照射は、3Mrad未満であると、架橋が不充
分で、10Mradを越えると、塩化ビニル樹脂が電子線によ
り著しく劣化して、経時的には変色を呈し、外観を損な
うので、３〜10Mradで行う。After the plastisol coating material is baked, embossing is performed while the coating film temperature is high, and then an electron beam is irradiated to crosslink the monomer and the vinyl chloride resin. Since the monomer added to the plastisol paint is an electron beam curing type, a pattern can be easily applied by embossing without causing a crosslinking reaction when the plastisol paint is heated and baked.
Further, when the electron beam irradiation is less than 3 Mrad, the crosslinking is insufficient, and when it exceeds 10 Mrad, the vinyl chloride resin is significantly deteriorated by the electron beam and discolors with time, impairing the appearance. ~ 10Mrad.
（実施例） 板厚0.4mmの溶融亜鉛めっき鋼板（めっき付着量60g/m
2、片面）に脱脂、塗布型クロメート処理を施して、第
１表に示す下塗り塗膜を乾燥塗膜厚で５μｍ形成した
後、下記の組成の塩化ビニル樹脂プラスチゾル塗料Ａま
たはＢにモノマーを第１表のように添加したものを乾燥
塗膜厚で100μｍになるようにゾル用バーコーター塗装
した。(Example) Hot-dip galvanized steel sheet with a plate thickness of 0.4 mm (coating adhesion amount 60 g / m
(2 , one side) is subjected to degreasing and coating type chromate treatment to form the undercoat coating film shown in Table 1 with a dry coating film thickness of 5 μm, and then a vinyl chloride resin plastisol coating composition A or B having the following composition is coated with a monomer. The additives added as shown in Table 1 were bar-coated with a sol so that the dry coating film thickness would be 100 μm.
塩化ビニル樹脂プラスチゾル塗料Ａ 塩化ビニル樹脂 100重量部 可塑剤（DOP） 20重量部 顔料（酸化チタン） 20重量部 希釈溶剤 20重量部 安定剤 ５重量部 塩化ビニル樹脂プラスチゾル塗料Ｂ 塩化ビニル樹脂 100重量部 可塑剤（DOP） 30重量部 顔料（酸化チタン） 15重量部 希釈溶剤 10重量部 安定剤 ３重量部 次に、その塗装鋼板を最高到達板温215℃、焼付時間6
0秒の条件で加熱焼付して、直ちにエンボス加工を施
し、水冷した。そして、水冷後、加速電圧200KVで電子
線を照射した。第１表にこの結果を示す。なお、塗膜性
能試験は次のようにして行った。Vinyl chloride resin plastisol paint A Vinyl chloride resin 100 parts by weight Plasticizer (DOP) 20 parts by weight Pigment (titanium oxide) 20 parts by weight Diluting solvent 20 parts by weight Stabilizer 5 parts by weight Vinyl chloride resin plastisol paint B Vinyl chloride resin 100 parts by weight Plasticizer (DOP) 30 parts by weight Pigment (titanium oxide) 15 parts by weight Diluting solvent 10 parts by weight Stabilizer 3 parts by weight Next, the coated steel sheet reaches the maximum plate temperature of 215 ° C and baking time 6
It was heated and baked under the condition of 0 seconds, immediately embossed, and cooled with water. Then, after cooling with water, an electron beam was irradiated at an acceleration voltage of 200 KV. Table 1 shows the results. The coating film performance test was conducted as follows.
（１） エンボス加工性 エンボス模様の深さを目視で評価し、最も深いものを
◎とし、以下浅くなるにしたがって○、△、×とした。(1) Embossability The depth of the embossed pattern was visually evaluated, and the deepest one was marked with ⊚, and the shallower marks were marked with ◯, Δ, and ×.
（２） 塗膜硬度 JIS G 3312に準じて鉛筆硬度を測定した。(2) Coating hardness The pencil hardness was measured according to JIS G 3312.
（３） 加工性 密着折り曲げ加工を施して、折り曲げ部分に対してセ
ロテープを貼付け、剥離するテーピング試験を行った後
のクラック発生状態を評価した。評価は、クラックの全
く発生しないものを◎とし、以下クラックが大きくなる
にしたがって○、△、×（クラック大）とした。(3) Workability A contact bending process was performed, a cellophane tape was attached to the bent part, and a cracking state after a taping test for peeling was evaluated. In the evaluation, ⊚ indicates that no cracks occur at all, and ∘, Δ, and x (large cracks) as the cracks increase.
（４） 耐汚染性 塗膜表面に赤マジックインキを塗り、20℃で24時間放
置後エタノールで拭き取り、赤マジックインキの残存状
態を目視で評価した。評価は、全く残らないものを◎と
し、以下残りが濃くなるにしたがって○、△、×（完全
に残った）とした。(4) Contamination resistance A red magic ink was applied to the surface of the coating film, allowed to stand at 20 ° C for 24 hours, wiped off with ethanol, and the residual state of the red magic ink was visually evaluated. In the evaluation, those that did not remain at all were rated as ⊚, and as the remainder became darker, they were rated as ○, Δ, and × (completely retained).
（５） 加工接着性 塗膜に幅5mmの平行な切り込みをカッターナイフで入
れた後、その切り込みと垂直な同様の切り込みを入れ
て、＃型の切り込みを作り、その切り込み部を裏面から
エリクセン押出機で6mm押出した後、その押出部分の塗
膜を強制的に剥離し、容易に剥離できるかどうかを調査
した。評価は、全く剥離できないものを◎とし、剥離が
容易になるにしたがって○、△、×とした。(5) Processing adhesion After making a parallel cut with a width of 5 mm in the coating film with a cutter knife, make a similar cut perpendicular to that cut to make a # -shaped cut and extrude the cut portion from the back side by Erichsen After extruding 6 mm by a machine, the coating film of the extruded part was forcibly peeled off, and it was investigated whether or not it could be easily peeled off. In the evaluation, those which could not be peeled off were marked with ⊚, and as peeling became easier, they were marked with ◯, Δ, and ×.
（６） 着色劣化性 80℃で２時間加熱した後の着色状態を目視で評価し
た。評価は、ほとんど着色しないものを◎とし、着色程
度が著しくなるにしたがって○、△、×（著しく着色）
とした。(6) Color deterioration property The color condition after heating at 80 ° C. for 2 hours was visually evaluated. In the evaluation, those that are hardly colored are marked with ⊚, and as the degree of coloring becomes more marked, ○, △, × (markedly colored)
And
（発明の効果） 以上のように、本発明によれば、塗膜硬度や耐汚染性
の優れた塩化ビニル樹脂積層鋼板をエンボス模様、外
観、加工性などを損なうことなく製造することができ
る。 (Effects of the Invention) As described above, according to the present invention, a vinyl chloride resin laminated steel sheet having excellent coating film hardness and stain resistance can be manufactured without impairing the embossed pattern, appearance, workability, and the like.
Claims (1)
0（cal/cm3）0.5のポリエステル系樹脂下塗り塗膜を形
成した後、アクリロイル基またはメタクリロイル基を３
個以上有する溶解度パラメーター8.5〜9.5（cal/cm3）
0.5のモノマーと可塑剤とを含有し、モノマー配合量が
重量で可塑剤の1.0〜3.0倍である塩化ビニル樹脂プラス
チゾル塗料を塗装して加熱焼付することにより上塗り塗
膜を形成し、その後、エンボス加工を施して電子線を３
〜10Mrad照射することを特徴とする塩化ビニル樹脂積層
鋼板の製造方法。1. The solubility parameter of the steel sheet surface is 8.5 to 10.
After forming a polyester resin undercoating film of 0 (cal / cm 3 ) 0.5 , add 3 acryloyl groups or methacryloyl groups.
Solubility parameter of 8.5 or more (cal / cm 3 )
A top coat film is formed by applying a vinyl chloride resin plastisol paint containing 0.5 monomer and a plasticizer and having a monomer content of 1.0 to 3.0 times the weight of the plasticizer and baking it, and then embossing. Processed and electron beam 3
A method for producing a vinyl chloride resin laminated steel sheet, which is characterized by irradiating with ~ 10 Mrad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325597A JP2684642B2 (en) | 1989-12-15 | 1989-12-15 | Method for manufacturing vinyl chloride resin laminated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325597A JP2684642B2 (en) | 1989-12-15 | 1989-12-15 | Method for manufacturing vinyl chloride resin laminated steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03184842A JPH03184842A (en) | 1991-08-12 |
| JP2684642B2 true JP2684642B2 (en) | 1997-12-03 |
Family
ID=18178658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1325597A Expired - Lifetime JP2684642B2 (en) | 1989-12-15 | 1989-12-15 | Method for manufacturing vinyl chloride resin laminated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2684642B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4033897A (en) * | 1996-09-03 | 1998-03-26 | Toko Kohan Co. Ltd. | Metallic sheet covered with polyvinyl chloride and method of manufacturing same |
-
1989
- 1989-12-15 JP JP1325597A patent/JP2684642B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03184842A (en) | 1991-08-12 |
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