JP3175057B2 - Transfer sheet for vacuum forming, transfer method and painting molded product - Google Patents
Transfer sheet for vacuum forming, transfer method and painting molded productInfo
- Publication number
- JP3175057B2 JP3175057B2 JP26209591A JP26209591A JP3175057B2 JP 3175057 B2 JP3175057 B2 JP 3175057B2 JP 26209591 A JP26209591 A JP 26209591A JP 26209591 A JP26209591 A JP 26209591A JP 3175057 B2 JP3175057 B2 JP 3175057B2
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- transfer sheet
- sheet
- polyvinyl chloride
- vacuum forming
- 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
- Decoration By Transfer Pictures (AREA)
- 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、真空成形法、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、真空プレス法等を利用して成形品に絵付けを
行なうための真空成形用転写シートの改良に関し、この
転写シートを使用した転写方法および絵付け成形品をも
包含する。BACKGROUND OF THE INVENTION The present invention relates to a vacuum forming method, i.e., a vacuum laminating method and a vacuum pressing method as described in JP-B-56-45768. The present invention relates to a transfer sheet for molding, which includes a transfer method using the transfer sheet and a painted product.
【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などの成形品の絵付けの手法のひ
とつに、真空成形を利用した転写方法がある。 その方
法は、成形品に加熱可塑化した成形用転写シートをかぶ
せ、両者の間にある空気を吸引して積層一体化し化粧層
を成形品に転移させた後に、転写台紙を剥離するもので
ある。2. Description of the Related Art One of the techniques for painting molded articles such as plastics in various fields such as home appliances and furniture is a transfer method utilizing vacuum molding. The method is to cover a molded article with a heat-plasticized transfer sheet for molding, suck air between the two, laminate and integrate, transfer the decorative layer to the molded article, and then peel off the transfer sheet. .
【０００３】この目的に用いる真空成形用転写シート
は、安価で入手しやすく成形加工性がよいポリ塩化ビニ
ルシートを転写台紙とし、その上に所望の化粧層および
接着剤層を設け、必要により転写台紙と化粧層との間に
剥離剤層を設けたものがほとんどである。 この剥離層
は、転写後は保護層となる。[0003] The transfer sheet for vacuum forming used for this purpose is a polyvinyl chloride sheet which is inexpensive, easily available and has good moldability, and is provided with a desired decorative layer and an adhesive layer thereon. In most cases, a release agent layer is provided between the mount and the decorative layer. This release layer becomes a protective layer after transfer.
【０００４】接着剤には、成形品と化粧層との強固な接
着を実現するために感熱タイプのものが使用され、転写
時には、この接着剤が機能する温度、すなわち１０５℃
以上の温度となる熱が、転写シートに加えられる。 こ
の時の熱により台紙が必要以上に軟化してしまい、台紙
を成形品から剥離するときに、それが伸びたり破れたり
することがある。 また、真空プレス機を使用して、シ
リコーンゴムシートで転写シートを加熱軟化させて成形
品に積層する場合には、ゴムシートを外すときに、軟化
しすぎた台紙がゴムシートに粘着して、冷却後の剥離を
またずに取れてしまうことがあった。As the adhesive, a heat-sensitive adhesive is used in order to realize strong adhesion between the molded article and the decorative layer. At the time of transfer, the temperature at which the adhesive functions, that is, 105 ° C.
The heat having the above temperature is applied to the transfer sheet. The heat at this time softens the backing sheet more than necessary, and when the backing sheet is peeled from the molded product, it may be stretched or torn. Also, when using a vacuum press machine to heat-soften the transfer sheet with a silicone rubber sheet and laminate it on a molded product, when the rubber sheet is removed, the over-softened backing adheres to the rubber sheet, In some cases, it could be removed without straddling after cooling.
【０００５】このため、在来の転写シートを使用した絵
付け成形品には、化粧層が歪んでいたり、欠けていたり
する外観不良の問題があった。 この問題は、形状が複
雑な成形品の絵付けのときに、とくに深刻であった。[0005] For this reason, a decorative molded article using a conventional transfer sheet has a problem of poor appearance in which the decorative layer is distorted or missing. This problem was particularly serious when painting a molded article having a complicated shape.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、真空
成形を利用した転写法による成形品への絵付けに使用す
るための転写シートであって、転写台紙が過度に軟化し
ないものを提供すること、さらに、この転写シートを用
いた転写方法および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 transfer sheet for use in painting a molded article by a transfer method utilizing vacuum forming, wherein a transfer board is not excessively softened. Another object of the present invention is to provide a transfer method and a painted product using the transfer sheet.
【０００７】[0007]
【課題を解決するための手段】本発明の真空成形用転写
シートは、ポリ塩化ビニルの転写台紙を用いた真空成形
用転写シートにおいて、転写台紙として、ポリ塩化ビニ
ル樹脂に対し、α−メチルスチレンとＮ−フェニルマレ
イミドおよび無水マレイン酸との共重合体である耐熱ス
チレン系樹脂を添加して、クラッシュベルグ柔軟温度を
５５℃以上、好ましくは６０℃以上に高めたものを用い
たことを特徴とする。A transfer sheet for vacuum forming according to the present invention is a transfer sheet for vacuum forming using a transfer board of polyvinyl chloride. And a heat-resistant styrenic resin which is a copolymer of N-phenylmaleimide and maleic anhydride, and having a crushberg softening temperature raised to 55 ° C. or higher, preferably 60 ° C. or higher. I do.
【０００８】本発明の転写方法は、成形品の表面に真空
成形により転写シートを積層して化粧層を密着させたの
ちに転写台紙を剥離することからなる転写方法におい
て、転写シートとして、上記の真空成形用転写シートを
使用することを特徴とする。[0008] The transfer method of the present invention is a transfer method comprising laminating a transfer sheet on the surface of a molded article by vacuum forming, bringing a decorative layer into close contact with the transfer sheet, and then peeling off a transfer sheet. It is characterized by using a transfer sheet for vacuum forming.
【０００９】本発明の絵付け成形品は、成形品の表面に
真空成形を利用した転写により化粧層を設けた絵付け成
形品において、化粧層が、上記の真空成形用転写シート
を使用して設けたものであることを特徴とする。[0009] The painted molded article of the present invention is a painted molded article having a decorative layer provided on the surface of the molded article by transfer utilizing vacuum molding, wherein the decorative layer is formed by using the above-mentioned transfer sheet for vacuum molding. It is characterized by being provided.
【００１０】ポリ塩化ビニル樹脂に対して、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するこ
とにより、ポリ塩化ビニル樹脂のクラッシュベルグ柔軟
温度を高めることができる。耐熱スチレン系樹脂は、ポ
リ塩化ビニル樹脂１００重量部に対して０．１〜１０重
量部添加するとよい。[0010] By adding a heat-resistant styrenic resin obtained by copolymerizing N-phenylmaleimide and maleic anhydride to α-methylstyrene to the polyvinyl chloride resin, the crushberg softening temperature of the polyvinyl chloride resin can be reduced. Can be enhanced. The heat-resistant styrene resin is preferably added in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the polyvinyl chloride resin.
【００１１】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。 可塑剤
の配合量は、樹脂１００重量部あたり８重量部以下にす
ることが好ましい。As a plasticizer for 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 reinforcing agent, a stabilizer and the like may be added to the polyvinyl chloride resin composition. The amount of the plasticizer is preferably 8 parts by weight or less per 100 parts by weight of the resin.
【００１２】上記の樹脂組成物をシート化してなる転写
台紙の厚さは、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０．０５〜０．１mmが適当であ
る。転写台紙の表面に、シリコーンやワックスなどで離
型処理を施しておいてもよい。The thickness of the transfer board formed by sheeting the above resin composition is appropriately selected depending on the painting method and the shape of the molded product, but usually 0.05 to 0.1 mm is appropriate. . A release treatment may be performed on the surface of the transfer board with silicone, wax, or the like.
【００１３】転写台紙と化粧層との間に必要に応じて設
ける剥離剤層は、熱可塑性樹脂製、熱硬化性樹脂製また
は電離放射線硬化性樹脂製の既知の剥離剤を使用し、通
常の手法で形成すればよい。The release agent layer optionally provided between the transfer board and the decorative layer is made of a known release agent made of a thermoplastic resin, a thermosetting resin or an ionizing radiation-curable resin. It may be formed by a technique.
【００１４】台紙または剥離剤層の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。 たとえば、ビヒクルとして酢酸セルロースを使用
し、希釈溶剤として酢酸エチル、トルエンまたはイソプ
ロピルアルコールからえらんだものを使用したインキを
用いて形成すればよい。The decorative layer provided on the mount or the release agent layer is optional, and a desired pattern printing layer or colored coating film may be provided. For example, it may be formed by using an ink using cellulose acetate as a vehicle and a solvent selected from ethyl acetate, toluene or isopropyl alcohol as a diluting solvent.
【００１５】接着剤は、転写すべき成形品の材料に応じ
て、ポリアミド系のものをはじめとする常用の接着剤を
使用すればよい。 接着剤に、炭酸カルシウムなど必要
な添加剤を加えてもよい。As the adhesive, a conventional adhesive such as a polyamide-based adhesive may be used according to the material of the molded article to be transferred. A necessary additive such as calcium carbonate may be added to the adhesive.
【００１６】[0016]
【作 用】転写台紙として、ポリ塩化ビニル樹脂に対
し、α−メチルスチレンとＮ−フェニルマレイミドおよ
び無水マレイン酸との共重合体であ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５５℃以上
に高めたポリ塩化ビニルのシートを用いたことにより、
転写時の熱によって台紙が過度に軟化することがなくな
り、歪みや欠けのない化粧層を与えることができる。こ
の効果は、柔軟温度５５℃以上で明瞭に認められ、６０
℃以上で顕著になる。[Action] A heat-resistant styrenic resin, which is a copolymer of α-methylstyrene, N-phenylmaleimide and maleic anhydride, is added to polyvinyl chloride resin as a transfer sheet, and the crushberg softening temperature is set to 55. By using polyvinyl chloride sheet raised to over ℃,
The backing sheet is not excessively softened by the heat at the time of transfer, and a decorative layer without distortion or chipping can be provided. This effect is clearly recognized at a softening temperature of 55 ° C. or more,
It becomes remarkable above ℃.
【００１７】[0017]
【実施例】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０．０８mmのシートに成
形した。EXAMPLES The following two types of polyvinyl chloride resin compositions were formed into a sheet having a thickness of 0.08 mm by a calender method.
【００１８】 成 分 比較例（従来品） 実施例 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 − 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 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、比較例は４
３℃、実施例は６０℃であった。[0018] Ingredient Comparative Example (conventional) example 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-Ba / Zn-based heat stabilizer 2 parts by weight 2 parts by weight Sn-based mercaptide heat stabilizer 1 part by weight 1 part by weight Heat-resistant styrene resin-5 parts by weight
When measured according to the method of K6734, the comparative example is 4
The temperature was 3 ° C, and the temperature in the example was 60 ° C.
【００１９】上記のシートを転写台紙とし、その上に印
刷インキ「ＫＬ−ＣＦ」（諸星インキ製）で木目柄をグ
ラビア印刷し、ついでポリアミド系感熱接着剤「ＢＳＡ
−１４５」（諸星インキ製）を厚さが８μｍとなるよう
にベタ印刷して、真空成形用転写シートを得た。The above-mentioned sheet is used as a transfer board, and a grain pattern is gravure-printed thereon with a printing ink "KL-CF" (manufactured by Morohoshi Ink), and then a polyamide-based heat-sensitive adhesive "BSA"
-145 "(manufactured by Morohoshi Ink) was solid-printed to a thickness of 8 µm to obtain a transfer sheet for vacuum forming.
【００２０】ＭＤＦで製作した、縦３００mm、横２００
mm、厚さ１８mmの平たい箱形で、すべての稜に５mmＲの
丸みをつけた成形品を用意した。 この成形品を、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
形用転写シートをのせ、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転写シー
トを１１０℃の温度に加熱し、成形品表面に４kgf／cm2
の圧力で１２０秒間押しつけて接着させた。転写台紙を
引き剥がし、化粧層の上に無色透明なウレタン塗料で表
面保護層を形成して絵付け成形品を得た。Made by MDF, length 300 mm, width 200
A molded product having a flat box shape having a thickness of 18 mm and a thickness of 18 mm and all edges being rounded by 5 mmR was prepared. The molded product was placed in a lower chamber of a vacuum press machine in which a box was divided into two parts by a silicone rubber sheet. The above two transfer sheets for vacuum forming are placed on the molded article, the lower chamber is evacuated and the upper chamber is evacuated, and the transfer sheet for molding is heated to 110 ° C. with a silicone rubber sheet. 4kgf / cm 2 on the surface
For 120 seconds to adhere. The transfer board was peeled off, and a surface protective layer was formed on the decorative layer with a colorless and transparent urethane paint to obtain a painted molded product.
【００２１】本発明に従う絵付け成形品は美麗な外観を
有していたが、従来技術にによる転写シートで製造した
絵付け成形品は、転写台紙を引き剥がすときに台紙が伸
びてしまい化粧層に歪みが生じていた。Although the decorative molded article according to the present invention has a beautiful appearance, the decorative molded article manufactured from the transfer sheet according to the prior art has a drawback in that when the transfer mount is peeled off, the mount is stretched and the decorative layer is stretched. Was distorted.
【００２２】[0022]
【発明の効果】本発明の真空成形用転写シートは、真空
成形により成形品に積層一体化したとき、熱による台紙
の過度の軟化がなく、外観に欠陥のない絵付け成形品を
与えることができる。According to the transfer sheet for vacuum forming of the present invention, when laminated and formed into a formed product by vacuum forming, the transfer sheet is free from excessive softening of the backing sheet due to heat and can give a painted formed product having no defect in appearance. it can.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 51/00 - 51/46 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B32B 1/00-35/00 B29C 51/00-51/46
Claims (3)
成形用転写シートにおいて、転写台紙として、ポリ塩化
ビニル樹脂に対し、α−メチルスチレンとＮ−フェニル
マレイミドおよび無水マレイン酸との共重合体である耐
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５５℃以上に高めたものを用いたことを特徴とする
転写シート。1. A transfer sheet for vacuum forming using a transfer sheet of polyvinyl chloride, wherein the transfer sheet is a copolymer of α-methylstyrene, N-phenylmaleimide and maleic anhydride with respect to polyvinyl chloride resin. A heat-resistant styrene-based resin having a crushberg softening temperature raised to 55 ° C. or higher.
トを積層して化粧層を密着させたのち転写台紙を剥離す
ることからなる転写方法において、転写シートとして、
ポリ塩化ビニル樹脂に対し、α−メチルスチレンとＮ−
フェニルマレイミドおよび無水マレイン酸との共重合体
であ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５５℃以上に高めたポリ塩化ビニルを転写
台紙とする真空成形用転写シートを使用することを特徴
とする転写方法。2. A transfer method comprising laminating a transfer sheet on the surface of a molded article by vacuum forming, adhering a decorative layer, and then peeling off a transfer sheet.
Α-methylstyrene and N-
Use of a transfer sheet for vacuum forming using a polyvinyl chloride transfer sheet as a transfer board, by adding a heat-resistant styrenic resin, which is a copolymer of phenylmaleimide and maleic anhydride, and increasing the crushberg softness temperature to 55 ° C. or higher. A transfer method characterized by the above-mentioned.
により化粧層を設けた絵付け成形品において、化粧層
が、転写台紙として、ポリ塩化ビニル樹脂に対し、α−
メチルスチレンとＮ−フェニルマレイミドおよび無水マ
レイン酸との共重合体であ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５５℃以上に高めた
ポリ塩化ビニルの転写台紙を有する真空成形用転写シー
トを使用して設けたものであることを特徴とする絵付け
成形品。3. A decorative molded article having a decorative layer provided on the surface of the molded article by transfer utilizing vacuum molding, wherein the decorative layer is formed on a polyvinyl chloride resin as a transfer board with α-.
Vacuum molding transfer having a polyvinyl chloride transfer board with a crushberg softening temperature raised to 55 ° C. or higher by adding a heat-resistant styrene resin which is a copolymer of methylstyrene, N-phenylmaleimide and maleic anhydride. A painted molded article characterized by being provided using a sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26209591A JP3175057B2 (en) | 1991-10-09 | 1991-10-09 | Transfer sheet for vacuum forming, transfer method and painting molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26209591A JP3175057B2 (en) | 1991-10-09 | 1991-10-09 | Transfer sheet for vacuum forming, transfer method and painting molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596614A JPH0596614A (en) | 1993-04-20 |
| JP3175057B2 true JP3175057B2 (en) | 2001-06-11 |
Family
ID=17370969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26209591A Expired - Lifetime JP3175057B2 (en) | 1991-10-09 | 1991-10-09 | Transfer sheet for vacuum forming, transfer method and painting molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3175057B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183883A (en) * | 2013-03-19 | 2013-07-03 | 西北工业大学 | High-performance hard PVC foamed plastic and preparation method thereof |
| JP6318561B2 (en) * | 2013-11-12 | 2018-05-09 | 凸版印刷株式会社 | Stretchable transfer film |
| 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 |
-
1991
- 1991-10-09 JP JP26209591A patent/JP3175057B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0596614A (en) | 1993-04-20 |
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