JP3052435B2 - Vacuum forming decorative sheet - Google Patents
Vacuum forming decorative sheetInfo
- Publication number
- JP3052435B2 JP3052435B2 JP15877891A JP15877891A JP3052435B2 JP 3052435 B2 JP3052435 B2 JP 3052435B2 JP 15877891 A JP15877891 A JP 15877891A JP 15877891 A JP15877891 A JP 15877891A JP 3052435 B2 JP3052435 B2 JP 3052435B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- decorative sheet
- vacuum forming
- decorative
- 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.)
- Expired - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、真空成形による絵付
け、すなわち特公昭５６−４５７６８号公報に記載のよ
うな真空ラミネート法、真空プレス法等に使用する真空
成形用化粧シートの改良に関し、この成形用化粧シート
を用いた絵付け成形品をも包含する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to painting by vacuum forming, that is, improvement of a decorative sheet for vacuum forming used in vacuum laminating, vacuum pressing and the like as described in JP-B-56-45768. And this decorative sheet for molding
And a molded article using the same.
【０００２】[0002]
【従来の技術】家電製品や家具など多彩な分野で行なわ
れているプラスチック成形品の絵付けの手法のひとつ
に、真空成形を利用したものがある。 その方法は、成
形品に加熱可塑化した成形用化粧シートをかぶせ、両者
の間にある空気を吸引して積層一体化するものである。2. Description of the Related Art One of the techniques for painting plastic molded articles in various fields, such as home appliances and furniture, uses vacuum molding. According to this method, a molded article is covered with a heat-plasticized decorative sheet for molding, and the air between the two is sucked to integrate the laminate.
【０００３】この目的に用いる真空成形用化粧シート
は、安価で成形加工性がよく、とくに積層シートの場合
に多くの成形品の材料に接着しやすいポリ塩化ビニルシ
ートを基材シートとし、その上に所望の化粧層を設けた
ものがほとんどである。[0003] The decorative sheet for vacuum forming used for this purpose is a base sheet made of a polyvinyl chloride sheet which is inexpensive, has good moldability and is easy to adhere to many molded article materials, especially in the case of a laminated sheet. Most of them have a desired decorative layer.
【０００４】在来の化粧シートを積層した成形品には、
たとえば６０〜１００℃の雰囲気下においたときに、シ
ートが収縮するという問題があった。 接着剤を使用す
ることにより、収縮をある程度は抑えられるが、十分で
はない。 この問題は形状が複雑な成形品に積層したと
き、とくに深刻であった。[0004] Molded products obtained by laminating conventional decorative sheets include:
For example, there is a problem that the sheet shrinks when placed in an atmosphere of 60 to 100 ° C. The use of an adhesive can reduce shrinkage to some extent, but is not sufficient. This problem was particularly serious when laminated on a molded article having a complicated shape.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、成形
品への真空成形による絵付けに使用する成形用化粧シー
トであって、立体的形状をもつ成形品に貼り合わせた
後、６０℃の温度で２４時間放置しても実質上収縮のな
いもの、およびその成形用化粧シートを用いた絵付け成
形品を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a decorative sheet for molding used for painting a molded article by vacuum molding, which is applied to a molded article having a three-dimensional shape. Having substantially no shrinkage even when left at the same temperature for 24 hours , and a painting process using the decorative sheet for molding.
To provide shaped articles .
【０００６】[0006]
【課題を解決するための手段】本発明の真空成形用化粧
シートは、ポリ塩化ビニルの基材シートを用いた真空成
形用化粧シートにおいて、基材シートとして、ポリ塩化
ビニル樹脂に対し、α−メチルスチレンにＮ−フェニル
マレイミドおよび無水マレイン酸を共重合させてなる耐
熱スチレン系樹脂を添加して、クラッシュベルグ柔軟温
度を５０℃以上、好ましくは５５℃以上に高めたものを
用いたことを特徴とする。本発明の絵付け成形品は、プ
ラスチックの成形品にポリ塩化ビニルの基材シートを用
いた成形用化粧シートを積層一体化した絵付け成形品に
おいて、成形用化粧シートの基材シートとして、ポリ塩
化ビニル樹脂に対し、α−メチルスチレンにＮ−フェニ
ルマレイミドおよび無水マレイン酸を共重合させてなる
耐熱スチレン系樹脂を添加して、クラッシュベルグ柔軟
温度を５０℃以上に高めたものを用いたことを特徴とす
る。The decorative sheet for vacuum forming according to the present invention is a decorative sheet for vacuum forming using a base sheet of polyvinyl chloride. A heat-resistant styrene resin obtained by copolymerizing N-phenylmaleimide and maleic anhydride with methylstyrene is added, and the crushberg softening temperature is raised to 50 ° C. or higher, preferably 55 ° C. or higher. And The decorative molded product of the present invention is a decorative molded product obtained by laminating and integrating a molded decorative sheet using a polyvinyl chloride base sheet on a plastic molded product. A resin obtained by adding a heat-resistant styrene resin obtained by copolymerizing N-phenylmaleimide and maleic anhydride to α-methylstyrene to a vinyl chloride resin and increasing the Crushberg softness temperature to 50 ° C. or higher. It is characterized by.
【０００７】ポリ塩化ビニルのクラッシュベルグ柔軟温
度を高めるために添加する、α−メチルスチレンに対し
Ｎ−フェニルマレイミドおよび無水マレイン酸を共重合
させてなる耐熱スチレン系樹脂の量は、ポリ塩化ビニル
樹脂１００重量部に対して０．１〜１０重量部が適当で
ある。The amount of heat-resistant styrenic resin obtained by copolymerizing α-methylstyrene with N-phenylmaleimide and maleic anhydride, which is added to increase the Crashberg softening temperature of polyvinyl chloride, is as follows. 0.1 to 10 parts by weight is appropriate for 100 parts by weight.
【０００８】ポリ塩化ビニルの可塑剤としては、トリ−
２−エチルヘキシルトリメリテートやエポキシ化大豆
油、またはアジピン酸、フタル酸などの二塩基酸とグリ
コール類との縮合により得た分子量８００〜４０００程
度のポリエステル系可塑剤が好適である。 そのほか必
要であれば、強化剤、安定剤、紫外線吸収剤などをポリ
塩化ビニル樹脂組成物に加えてもよいことはいうまでも
ない。[0008] As a plasticizer of polyvinyl chloride, tri-
Polyester plasticizers having a molecular weight of about 800 to 4000 obtained by condensation of 2-ethylhexyl trimellitate, epoxidized soybean oil, or dibasic acids such as adipic acid and phthalic acid with glycols are preferred. Needless to say, if necessary, a toughening agent, a stabilizer, an ultraviolet absorber and the like may be added to the polyvinyl chloride resin composition.
【０００９】上記の樹脂組成物をシート化してなる基材
シートの厚さは、絵付け成形法や成形品の形状に応じて
適宜にえらぶが通常は０．１〜５．０mmが適当である。
あるいは、基材シート自体に顔料や染料を練り込んで
もよい。 基材上に設ける化粧層は任意であり、所望の
絵柄印刷層や着色塗膜を設ければよい。 成形品との接
着性を高めるために、基材シートの裏面に接着剤を塗布
しておいてもよい。そのほか、化粧シートの表面に、表
面保護のために透明な塗膜を形成することもできる。
ただし、この場合は塗膜にも成形性が必要であるから、
熱可塑性のものか、少なくとも可撓性の高い材料で塗膜
をつくらなければならない。 好適な材料は、基材シー
トと同種の樹脂のほか、ウレタンエラストマー、特開平
２−４８９３６号公報に開示されたようなウレタンアク
リレートである。The thickness of the base sheet formed from the above resin composition into a sheet is appropriately selected depending on the painting method and the shape of the molded product, but usually 0.1 to 5.0 mm is appropriate. .
Alternatively, a pigment or a dye may be kneaded into the base sheet itself. The decorative layer provided on the substrate is optional, and a desired pattern printing layer or colored coating film may be provided. An adhesive may be applied to the back surface of the base sheet in order to enhance the adhesiveness with the molded article. In addition, a transparent coating film can be formed on the surface of the decorative sheet for surface protection.
However, in this case, since the coating film also needs to be moldable,
The coating must be made of a thermoplastic or at least a highly flexible material. Suitable materials include the same kind of resin as the base sheet, urethane elastomer, and urethane acrylate as disclosed in JP-A-2-48936.
【００１０】[0010]
【作用】基材シートとしてクラッシュベルグ柔軟温度が
５０℃以上のポリ塩化ビニルのシートを用いたことによ
り、成形用化粧シートの熱収縮が実質上なくなる。 こ
の効果は、柔軟温度５０℃以上で明瞭に認められ、５５
℃以上で顕著になる。The use of a polyvinyl chloride sheet having a crushberg soft temperature of 50 ° C. or higher as the base sheet substantially eliminates the heat shrinkage of the decorative sheet for molding. This effect is clearly recognized at a softening temperature of 50 ° C. or more,
It becomes remarkable above ℃.
【００１１】[0011]
［実施例１］下記の２種の配合のポリ塩化ビニル樹脂組
成物を、カレンダー法により厚さ０．２mmのシートに成
形した。 Ａは比較のため用いた従来品、Ｂは本発明に
従うものである。Example 1 A polyvinyl chloride resin composition having the following two compositions was formed into a sheet having a thickness of 0.2 mm by a calender method. A is a conventional product used for comparison, and B is according to the present invention.
【００１２】 成 分 Ａ Ｂ ポリ塩化ビニル（重合度８００） １００重量部 １００重量部 トリ−２−エチルヘキシル ８重量部 ８重量部 トリメリテート（可塑性） エポキシ化大豆油（可塑剤） ３重量部 ３重量部 Ｂａ／Ｚｎ系熱安定剤 ２重量部 ２重量部 Ｓｎ系メルカプチド熱安定剤 １重量部 １重量部 紫外線吸収剤 ０．５重量部 ０．５重量部 耐熱スチレン樹脂 − ５重量部 これらのシートのクラッシュベルグ柔軟温度をＪＩＳ−
Ｋ６７３４の方法に従って測定したところ、Ａは４３
℃、Ｂは５７℃であった。[0012] Ingredient A B Polyvinyl chloride (polymerization degree 800) 100 parts by weight to 100 parts by weight of tri-2-ethylhexyl 8 parts 8 parts trimellitate (plasticity) epoxidized soybean oil (plasticizer) 3 parts by weight 3 parts by weight Ba / Zn heat stabilizer 2 parts by weight 2 parts by weight Sn-based mercaptide heat stabilizer 1 part by weight 1 part by weight UV absorber 0.5 part by weight 0.5 part by weight Heat resistant styrene resin-5 parts by weight Crush of these sheets JIS-
When measured according to the method of K6734, A was 43
° C and B were 57 ° C.
【００１３】上記のシートを基材シートとし、その上に
印刷インキ「化Ｘ」（昭和インク工業所製）で木目柄を
グラビア印刷して、本発明の真空成形用化粧シートを得
た。ＡＢＳ樹脂製の成形品で、縦１１０mm、横８０mm、
厚さ１０mmの平たい箱形で、すべての稜に１０mmＲの丸
みをつけたものＩ、および同じ大きさでコーナーを６mm
ＲとしたものIIを用意した。The above-mentioned sheet was used as a base sheet, and a grain pattern was gravure-printed on the base sheet with a printing ink "Kake X" (manufactured by Showa Ink Industries, Ltd.) to obtain a decorative sheet for vacuum forming of the present invention. It is a molded product made of ABS resin, length 110mm, width 80mm,
10mm thick flat box with 10mmR roundness on all edges I, and 6mm corners of the same size
A sample II was prepared as R.
【００１４】これらの成形品に、ウレタン系接着剤「Ｂ
８−ＥＡ」（諸星インキ製）をスプレーコートし、乾燥
させて接着剤層（５ｇ／ｍ2）を設けた。 成形用化粧
シートにも同じ接着剤をロールコートし、乾燥させて接
着剤層（８ｇ／ｍ2）を設けた。 真空ラミネート機に
成形品を置き、成形用化粧シートで成形品を置いた箱内
を上下に二分割し、上下両室を真空にしながら成形用シ
ートを７０〜８０℃の温度になるように加熱して軟化さ
せ、ついで下室を真空状態に、上室を圧空状態にして、
成形用化粧シートを成形品に接着させた。On these molded articles, a urethane-based adhesive "B
"8-EA" (manufactured by Morohoshi Ink) was spray-coated and dried to form an adhesive layer (5 g / m 2 ). The same adhesive was roll-coated on the decorative sheet for molding and dried to provide an adhesive layer (8 g / m 2 ). A molded product is placed on a vacuum laminating machine, and the interior of the box where the molded product is placed is divided into upper and lower parts by a decorative sheet for molding. To soften, then put the lower chamber in a vacuum state, the upper chamber in a compressed state,
The decorative sheet for molding was adhered to the molded article.
【００１５】これらの成形品を６０℃の雰囲気に２４時
間放置したのち放冷して、絵付け成形品を得た。 それ
ぞれの絵付け成形品について、成形品の端から成形用シ
ートがどの程度収縮しているかを測定した。 結果を表
１に示す。These molded articles were left in an atmosphere of 60 ° C. for 24 hours and then allowed to cool to obtain a painted molded article. The degree of shrinkage of the molding sheet from the end of the molded article was measured for each of the painted molded articles. Table 1 shows the results.
【００１６】 表１ 成形品 基材シートＡ（本発明） 基材シートＢ（比較例） Ｉ ０mm ２．０mm II ０mm ２．２mm ［実施例２］成形品ＩおよびIIと同じ形状の成形品III
およびIVを、ＭＤＦで製作した。Table 1 Molded product base sheet A (invention) Base sheet B (comparative example) I 0 mm 2.0 mm II 0 mm 2.2 mm [Example 2] Molded product III having the same shape as molded products I and II
And IV were made in MDF.
【００１７】成形品に、接着剤としてポリウレタンのエ
マルジョン「ＣＶＣ４５Ｌ」（コニシボンド製）をスプ
レーコートして、塗布量８ｇ／ｍ2（乾燥時）の接着剤
層を設けた。 これらの成形品を、シリコーンゴムシー
トで箱体を上下に二分割した真空プレス機の下室に配置
した。 成形品の上に、前記２種の真空成形用化粧シー
トをのせ、下室を真空にするとともに上室を圧空にし
て、シリコーンゴムシートで成形用化粧シートを８０〜
９０℃の温度に加熱し、形成品表面に押しつけて接着さ
せた。 これらの成形品について前記と同様な耐熱試験
を行ない、それぞれについて成形用化粧シートの収縮量
を測定した。 結果を表２に示す。The molded product was spray-coated with a polyurethane emulsion "CVC45L" (manufactured by Konishi Bond) as an adhesive to provide an adhesive layer having a coating amount of 8 g / m 2 (when dried). These molded products were placed in a lower chamber of a vacuum press machine in which a box was divided into upper and lower parts by a silicone rubber sheet. The above two types of decorative sheets for vacuum forming are placed on the molded article, the lower chamber is evacuated and the upper chamber is evacuated, and the decorative sheet for forming is formed with a silicone rubber sheet.
It was heated to a temperature of 90 ° C. and pressed against the surface of the formed product to bond it. The same heat resistance test as described above was performed on these molded products, and the shrinkage of the decorative decorative sheet was measured for each of them. Table 2 shows the results.
【００１８】 表２ 成形品 基材シートＡ（本発明） 基材シートＢ（比較例） III ０mm ２．３mm IV ０mm ２．５mmTable 2 Molded product base sheet A (invention) Base sheet B (comparative example) III 0 mm 2.3 mm IV 0 mm 2.5 mm
【００１９】[0019]
【発明の効果】本発明の真空成形用化粧シートは、真空
成形により成形品にラミネートしたとき、熱による収縮
がなく、外観に欠陥の生じない絵付け成形品を与える。
本発明の絵付け成形品は、製造後も化粧シートの熱収縮
がなく美麗な外観を維持できるので、テレビやＯＡ機器
などのキャビネットのように、使用時に温度が高くなる
ことのある用途に好適である。 The decorative sheet for vacuum forming of the present invention, when laminated on a formed product by vacuum forming, gives a painted formed product which does not shrink due to heat and has no appearance defect.
The painted molded product of the present invention can be used for heat shrinkage of decorative sheet even after production.
TV and OA equipment because it can maintain a beautiful appearance without any
Temperature rises when used, such as cabinets
It is suitable for occasional uses.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 荒木 登 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 (56)参考文献 特開 平３−21426（ＪＰ，Ａ) 特開 平２−111512（ＪＰ，Ａ) 特開 昭60−166337（ＪＰ，Ａ) 特公 昭56−45768（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 51/10 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Noboru Araki 1-1-1 Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd. (56) References JP-A-3-21426 (JP, A) JP-A-2-111512 (JP, A) JP-A-60-166337 (JP, A) JP-B-56-45768 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1 / 00-35/00 B29C 51/10
Claims (2)
ートとして、ポリ塩化ビニル樹脂に対し、α−メチルス
チレンにＮ−フェニルマレイミドおよび無水マレイン酸
を共重合させてなる耐熱スチレン系樹脂を添加して、ク
ラッシュベルグ柔軟温度を５０℃以上に高めたものを用
いたことを特徴とする真空成形用化粧シート。In a decorative sheet for vacuum forming, a heat-resistant styrene resin obtained by copolymerizing α-methylstyrene with N-phenylmaleimide and maleic anhydride is added to a polyvinyl chloride resin as a base sheet. A decorative sheet for vacuum forming, characterized by using a material having a crushberg softening temperature raised to 50 ° C. or higher.
の基材シートを用いた真空成形用化粧シートを積層一体
化した絵付け成形品において、真空成形用化粧シートの
基材シートとして、ポリ塩化ビニル樹脂に対し、α−メ
チルスチレンにＮ−フェニルマレイミドおよび無水マレ
イン酸を共重合させてなる耐熱スチレン系樹脂を添加し
て、クラッシュベルグ柔軟温度を５０℃以上に高めたも
のを用いたことを特徴とする絵付け成形品。2. A decorative molded product obtained by laminating and integrating a decorative sheet for vacuum forming using a base sheet of polyvinyl chloride on a plastic molded article, wherein the base sheet of the decorative sheet for vacuum forming is polyvinyl chloride. Heat resistant styrene resin obtained by copolymerizing N-phenylmaleimide and maleic anhydride with α-methylstyrene is added to the resin, and the crushberg softening temperature is raised to 50 ° C or higher. Painting molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15877891A JP3052435B2 (en) | 1991-06-28 | 1991-06-28 | Vacuum forming decorative sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15877891A JP3052435B2 (en) | 1991-06-28 | 1991-06-28 | Vacuum forming decorative sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH054309A JPH054309A (en) | 1993-01-14 |
| JP3052435B2 true JP3052435B2 (en) | 2000-06-12 |
Family
ID=15679131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15877891A Expired - Lifetime JP3052435B2 (en) | 1991-06-28 | 1991-06-28 | Vacuum forming decorative sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052435B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5869560A (en) * | 1995-07-27 | 1999-02-09 | Taisei Corporation | Sealing materials and building components useful for clean rooms |
| JP3839011B2 (en) * | 2003-09-16 | 2006-11-01 | バンドー化学株式会社 | Vinyl chloride resin film for vacuum forming and vacuum forming method |
| JP4914514B2 (en) * | 2010-07-02 | 2012-04-11 | 株式会社リガク | X-ray fluorescence analyzer and method |
| JP6434273B2 (en) * | 2014-10-15 | 2018-12-05 | バンドー化学株式会社 | Laminated body for decorative molding, method for producing decorative molded product, and decorative molded product |
| JP2019177681A (en) * | 2018-03-30 | 2019-10-17 | 大日本印刷株式会社 | Decorative sheet for molding |
-
1991
- 1991-06-28 JP JP15877891A patent/JP3052435B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054309A (en) | 1993-01-14 |
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