JPH03202176A - Decorative sheet and its manufacture - Google Patents
Decorative sheet and its manufactureInfo
- Publication number
- JPH03202176A JPH03202176A JP34342889A JP34342889A JPH03202176A JP H03202176 A JPH03202176 A JP H03202176A JP 34342889 A JP34342889 A JP 34342889A JP 34342889 A JP34342889 A JP 34342889A JP H03202176 A JPH03202176 A JP H03202176A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- sheet
- gravure
- decorative sheet
- printing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 238000007639 printing Methods 0.000 claims description 14
- 238000007646 gravure printing Methods 0.000 claims description 7
- 230000005865 ionizing radiation Effects 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000005510 radiation hardening Methods 0.000 abstract 3
- 230000005855 radiation Effects 0.000 abstract 2
- 239000000976 ink Substances 0.000 description 43
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 229940096522 trimethylolpropane triacrylate Drugs 0.000 description 3
- MEZZCSHVIGVWFI-UHFFFAOYSA-N 2,2'-Dihydroxy-4-methoxybenzophenone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1O MEZZCSHVIGVWFI-UHFFFAOYSA-N 0.000 description 2
- LWZNQGJGMBRAII-UHFFFAOYSA-N 2-methylhexyl prop-2-enoate Chemical compound CCCCC(C)COC(=O)C=C LWZNQGJGMBRAII-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
Landscapes
- Rotary Presses (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
本発明は、立体的意匠を有し施工性にすぐれた化粧シー
トと、その製造方法に関する。
［従来の技術］
基材シートに絵柄や模様を印刷して行なう化粧シートの
製造において、印刷には、溶剤型インキまたは熱硬化型
インキを用いるのがふつうである。
基材シートに所望の絵柄でインキ層を設けたのち、８０
〜１５０’Ｃの温度に加熱して溶剤を乾燥させるか、ま
たは熱硬化させる。 立体的な意匠を表現しようとする
ときは、インキ量の多い盛り上げ印刷を行なう。 イン
キの量が多くなれば、溶剤乾燥または熱硬化のための加
熱時間が長くなるのは当然である。
一方で、化粧シートには施工性のよいこと、すなわち曲
面に沿わせやすいとか、多少の伸びは許容されるとかの
性質が要望されるから、基材シートはそれにかなうもの
からえらばなければならない。 その代表がポリ塩化ビ
ニルシートである。
しかし、一般に施工性のよいプラスチックは耐熱性に乏
しく、そのシート上に上記のような印刷方法で盛り上げ
印刷すると、乾燥時の熱によってシートが変形してしま
い、美麗な外観をもつ化粧シトが得られない。
紙や耐熱性のあるプラスチックのシートを基材シー］〜
として使用すれば、熱による変形は避（ブられるが、得
られた化粧シートの施工性は劣る。The present invention relates to a decorative sheet with a three-dimensional design and excellent workability, and a method for manufacturing the same. [Prior Art] In the production of decorative sheets by printing pictures and patterns on base sheets, solvent-based inks or thermosetting inks are usually used for printing. After providing an ink layer with the desired pattern on the base sheet, 80
The solvent is dried or heat cured by heating to a temperature of ~150'C. When trying to express a three-dimensional design, use raised printing with a large amount of ink. Naturally, the larger the amount of ink, the longer the heating time for solvent drying or thermal curing. On the other hand, decorative sheets are required to have good workability, that is, to be able to easily conform to curved surfaces and to allow some elongation, so the base sheet must be selected from those that meet these requirements. A typical example is polyvinyl chloride sheet. However, plastics, which are generally easy to work with, have poor heat resistance, and if the above-mentioned printing method is applied to build up the sheet, the sheet will be deformed by the heat during drying, making it difficult to obtain a decorative sheet with a beautiful appearance. I can't do it. Base material sheet is paper or heat-resistant plastic sheet] ~
If used as a decorative sheet, deformation due to heat can be avoided, but the workability of the resulting decorative sheet is poor.
本発明の化粧シートの製造方法は、施工性にすぐれたプ
ラスチックの基材シート上に、電離放射線硬化性樹脂を
ビヒクルとするインキを用いた盛り上げ印刷により絵柄
インキ層を設け、ついで電離放射線を照射してこのイン
キ層を硬化させることからなる。
施工性にすぐれたプラスチックの基材シートは、前記し
たように、ポリ塩化ビニルのシートが代表的であって、
そのほかにはポリオレフィン、ポリ塩化ビニリデン、ポ
リスチレン、■チレンー酢酸ビニル共重合体、アクリル
樹脂、ＡＢＳ樹脂、フッ素樹脂などのシートが使用でき
る。 これらは、いずれもガラス転移点が一４０〜７０
’Ｃ，溶融点が１００〜２２０℃の範囲のものであって
、耐熱性に乏しい。 必要により、基材シーｉ〜に易接
着処理を施しておくとよい。
本発明で使用するインキは、電離放射線硬化性樹脂のビ
ヒクルを、所望の着色をする顔料とともに適宜の有機溶
剤に分散させたものである。
ビヒクルに用いる電離放射線硬化性樹脂としては、たと
えば、ポリエステルアクリレート、■ホキシアクリレー
ト、ウレタンアクリレート、アクリル変性アルキッド、
アクリル変性ポリエステルなどをオリゴマーとし、これ
に架橋構造の調整や粘度調整などを目的として、ネオペ
ンチルグリコールージアクリレー１〜、ペンタエリスリ
トールトリアクリレート、トリメチロールプロパン−ト
リアクリレート、トリメチロールプロパン−トリメタア
クリレートなどのモノマーを配合したものを使用する。
インキの粘度についていえば、版から基材シト上へのイ
ンキの転移性と、転移後に電離放剣線照剣により硬化す
るまでのインキの垂れ下がり防止とを両立させるため、
ドクターを使用するグラビア印刷の場合は１００〜２０
０ ｃｐｓが適当であり、ドクターを使用しないグラビ
ア印刷であれば３０．０〜５０００Ｃ１）Ｓ、とくに５
００〜３５００ｃｐｓが好ましい。
上記した樹脂は電子線により十分に硬化可能であるが、
紫外線照射で硬化させる場合には、ベンゾイン系、アセ
トフェノン系、ベンジルケタール系、ケトン／アミン系
などの光重合開始剤を添加することが一般的である。
基材シートへの接着性を確保するため、コロナ放電処理
など既知の易接着処理を施したり、基材シートと同種の
、または近縁のプラスチックを添加して用いるとよい。
電離放射線は、電子線および紫外線が代表的である。
前者は各種の電子線加速機から放出され、５０〜１００
０ｋｅＶ、好ましくは１ｏＯ〜３００ｋｅＶの範囲のエ
ネルギーをもつ電子線が用いられ、後者は、高圧水銀灯
、そのほかの紫外線源から発するものを用いる。
印刷時のインキの垂れによるインキ印刷膜厚の低下とセ
ルの鮮鋭度の低下を防止するために、インキには、従来
行なわれているようにチキソトロープ剤を添加して使用
することが好ましい。 チキン１〜ロープ剤の例をあげ
れば、酸化ポリエチレン系活性剤や、シリカ、アルミナ
、炭酸カルシウム、カオリン、ベントナイトなどの無機
質充填剤である。 添加量は、インキ１００重量部に対
し１〜１０重量部で足りる。
有機溶剤は、各種のエステル、ケトン、アルカン、アル
コール、エーテル、ハロゲン化炭化水素および芳香族炭
化水素などの中から適宜に選択する。
基材シートの耐溶剤性がとくに低いものを使用するとき
は、インキ中の有機溶剤の含有量を５０重量％以下にす
ることが好ましい。 溶剤量が５０％を超えるとインキ
の流動性が高くなりすぎ、印刷後、電離放射線で硬化す
るまでにインキが流れてしまい、柄の盛り上げ感が低下
する。
盛り上げ印刷は、既知の印刷手法で行なえばよい。 −
例をあげれば、版深が１００〜６００μ班のグラビア版
を使用したグラビア印刷法である。 版深が１００μ卯
未満の浅いものは、インキの転移量が少なく印刷の厚さ
が不足で、盛り上げ感が劣る。 といって、６００μ椛
を超える深い版を用いると、インキが自重で垂れ下り横
に拡がる傾向が出てくるため、印刷の厚さは飽和するう
え、網点が拡がって絵柄の再現性が悪くなり、インキの
泳ぎが起る。
グラビア印刷は通常、グラビアロールにドクタブレード
を当ててロールの凹部だけにインキを埋め、これを転移
させて実施するが、ドクターブレードを使用しないグラ
ビア印刷法もある。 すなわち、グラビアロール仝体に
インキをつけ、基材シートをグラビアロールと圧胴との
間に挟み込むことによりロールの凹部以外の部分に付着
しているインキを絞り出し、凹部のインキだけを転移さ
せる手法である。 このドクターなしのグラビア印刷法
は、版深３００〜６００μ班の場合に効果的である。
というのは、この鎖酸の版深のグラビアロールにドクタ
ーを当てると版凹部の中までかき取ってしまし、インキ
の量が減ってしまうからである。
上記の製造方法によって得られる本発明の化粧シートは
、施工性にすぐれたプラスチックの基材シートの一方ま
たは両方の面に、厚さが１０μ汎以上４００μ班以下の
電離放射線硬化型インキの硬化インキ層を設けてなる。The method for producing a decorative sheet of the present invention is to provide a pattern ink layer on a plastic base sheet with excellent workability through raised printing using an ink using an ionizing radiation-curable resin as a vehicle, and then irradiate it with ionizing radiation. The process consists of curing this ink layer. As mentioned above, a typical plastic base sheet with excellent workability is a polyvinyl chloride sheet.
Other sheets that can be used include polyolefin, polyvinylidene chloride, polystyrene, (2) tyrene-vinyl acetate copolymer, acrylic resin, ABS resin, and fluororesin. All of these have glass transition points of 140 to 70.
'C, the melting point is in the range of 100 to 220°C, and the heat resistance is poor. If necessary, the base material sheet i~ may be subjected to an adhesion-facilitating treatment. The ink used in the present invention is prepared by dispersing an ionizing radiation-curable resin vehicle in a suitable organic solvent together with a pigment for desired coloring. Ionizing radiation-curable resins used for the vehicle include, for example, polyester acrylate, phoxy acrylate, urethane acrylate, acrylic modified alkyd,
Acrylic modified polyester is used as an oligomer, and neopentyl glycol diacrylate 1~, pentaerythritol triacrylate, trimethylolpropane-triacrylate, trimethylolpropane-trimethacrylate is added to this for the purpose of adjusting the crosslinked structure and adjusting the viscosity. Use a mixture of monomers such as Regarding the viscosity of the ink, in order to achieve both the transferability of the ink from the plate onto the substrate sheet and the prevention of ink dripping until it is cured by the ionizing beam after transfer,
100-20 for gravure printing using a doctor
0 cps is appropriate, and for gravure printing without using a doctor, 30.0 to 5000 C1) S, especially 5
00 to 3500 cps is preferable. The above-mentioned resins can be sufficiently cured by electron beams, but
When curing by ultraviolet irradiation, it is common to add a photopolymerization initiator such as a benzoin type, acetophenone type, benzyl ketal type, or ketone/amine type.
In order to ensure adhesion to the base sheet, it is preferable to perform a known adhesion-facilitating treatment such as corona discharge treatment, or to add a plastic of the same type or a close relative to the base sheet. Typical examples of ionizing radiation are electron beams and ultraviolet rays.
The former is emitted from various electron beam accelerators, and is 50 to 100
Electron beams with energies in the range 0 keV, preferably 100 to 300 keV are used, the latter being those emitted from high-pressure mercury lamps or other ultraviolet sources. In order to prevent a decrease in the printed ink film thickness and a decrease in the sharpness of the cells due to ink dripping during printing, it is preferable to add a thixotropic agent to the ink as conventionally used. Examples of rope agents include polyethylene oxide activators and inorganic fillers such as silica, alumina, calcium carbonate, kaolin, and bentonite. The addition amount may be 1 to 10 parts by weight per 100 parts by weight of the ink. The organic solvent is appropriately selected from various esters, ketones, alkanes, alcohols, ethers, halogenated hydrocarbons, aromatic hydrocarbons, and the like. When using a base sheet with particularly low solvent resistance, it is preferable that the content of organic solvent in the ink is 50% by weight or less. If the amount of solvent exceeds 50%, the fluidity of the ink will become too high, and the ink will flow after printing before it is cured by ionizing radiation, reducing the sense of raisedness of the pattern. The raised printing may be performed using a known printing method. −
An example is a gravure printing method using a gravure plate having a plate depth of 100 to 600 μm. If the plate depth is less than 100 μm, the amount of ink transferred is small, the printing thickness is insufficient, and the impression of printing is poor. However, if a deep plate exceeding 600 μm is used, the ink tends to drip and spread horizontally due to its own weight, so the thickness of the print becomes saturated, and the halftone dots spread, resulting in poor image reproducibility. This causes the ink to swim. Gravure printing is usually carried out by applying a doctor blade to a gravure roll to fill only the recesses of the roll with ink and transferring the ink, but there is also a gravure printing method that does not use a doctor blade. That is, a method in which ink is applied to the body of the gravure roll, and the base sheet is sandwiched between the gravure roll and the impression cylinder to squeeze out the ink adhering to areas other than the recessed parts of the roll, and transfer only the ink in the recessed parts. It is. This gravure printing method without a doctor is effective when the plate depth is 300 to 600 μm.
This is because if you apply a doctor to the gravure roll at the depth of this chain acid plate, it will scrape it all the way into the depressions of the plate, reducing the amount of ink. The decorative sheet of the present invention obtained by the above manufacturing method is coated with a cured ink of an ionizing radiation-curable ink having a thickness of 10 μm or more and 400 μm or less on one or both sides of a plastic base sheet with excellent workability. It is made up of layers.
本発明の化粧シートの製造方法は、溶剤乾燥型インキや
熱硬化型インキに代えて、電離放射線硬化型インキを使
用したことにより、加熱工程なしに製品を得ることがで
き、耐熱性の低い基材シートの使用が可能である。
［実施例１］
下記の組成の紫外線硬化型インキ（粘度は２５°Ｃで２
５０Ｃｔ）Ｓ）を用意した。
ウレタンアクリレート １００重量部ポリエス
テルアクリレート １００ ｌ／２−メチルへキシ
ルアクリレート ３０ 〃トリメチロールプロパン
トリアクリレート １０ 〃
ベンゾフェノン ８ 〃イソプロピ
ルアルコール ５０ 〃厚さＯ，１ｍのポリ塩
化ビニルシート（三菱化成■製〉上に、版深が１５０μ
仇のグラビア版を使用して、上記インキで抽象柄をグラ
ビア印刷した。
そのシートを出力１６０Ｗ／ｃｍのオゾン発生型水銀ラ
ンプの下を５ ｍ／ｍｉｎの速度で通過させて、厚さ９
５〜１０５μ椛の硬化インキ層を表面にもつ本発明の化
粧シートを得た。The decorative sheet manufacturing method of the present invention uses an ionizing radiation-curable ink instead of a solvent-drying ink or a thermosetting ink, thereby making it possible to obtain a product without a heating process and using a base material with low heat resistance. It is possible to use a material sheet. [Example 1] Ultraviolet curable ink with the following composition (viscosity: 2 at 25°C)
50Ct)S) was prepared. Urethane acrylate 100 parts by weight Polyester acrylate 100 l/2-methylhexyl acrylate 30 Trimethylolpropane triacrylate 10 Benzophenone 8 Isopropyl alcohol 50 On a polyvinyl chloride sheet (manufactured by Mitsubishi Kasei) with a thickness of O and 1 m , plate depth is 150μ
An abstract pattern was gravure printed using the above ink using the gravure plate of Enemy. The sheet was passed under an ozone-generating mercury lamp with an output of 160 W/cm at a speed of 5 m/min to a thickness of 9
A decorative sheet of the present invention having a cured ink layer of 5 to 105 μm thick on its surface was obtained.
【実施例２］
下記の組成の電子線硬化型インキを４０’Ｃに加温する
ことにより粘度を５００Ｃ１）Ｓに調整して使０
用し、実施例１と同じ厚ざＯ，ＩＩｆｕｒｉのポリ塩化
ビニルシート上に、同様にして抽象柄を印刷した。
ついでそれに１５０８Ｖ−１５ｍＡのエネルギーをもつ
電子線を、窒素雰囲気中で照射した。
ウレタンアクリレート １００重量部ジペンタエ
リスリトール
ヘキサアクリレート ５０ 〃
パール顔料 ３０ 〃得られた化粧
シートは変形もなく、表面に１００〜１１０μ卯の硬化
インキ層をもつものであった。
【実施例３】
下記の組成の紫外線硬化型インキを用意した。
この組成は実施例１のインキにおいてイソプロピルアル
コールを加えないものであって、粘度は２５°Ｃで１１
００ＣｐＳに上昇している。
ウレタンアクリレート １００重量部ポリエス
テルアクリレート １００ 〃２−メチルへキシル
アクリレート ３０ 〃トリメチロールプロパン
トリアクリレート １０ 〃
ベンゾフェノン ８ 〃厚ざ０，１
＃のポリ塩化ビニルシート（三菱化成■製）上に、版深
が３５０μ班のグラビア版を使用して、上記インキで抽
象柄をドクターを使用しないグラビア法で印刷した。
そのシートを、実施例１と同様に出力１６０Ｗ／ｃｍの
オゾン発生型水銀ランプの下を５ｍ／ｍ１ｎの速度で通
過させて、厚さ１９５〜２０５μ卯の硬化インキ層を表
面にもつ、本発明の化粧シートを得た。[Example 2] An electron beam curable ink having the following composition was heated to 40'C to adjust the viscosity to 500C1)S, and was used to make a polyurethane ink with the same thickness O and IIfuri as in Example 1. An abstract pattern was printed in the same manner on a vinyl chloride sheet. Then, it was irradiated with an electron beam having an energy of 1508 V and 15 mA in a nitrogen atmosphere. Urethane acrylate 100 parts by weight Dipentaerythritol hexaacrylate 50 Pearl pigment 30 The obtained decorative sheet had no deformation and had a cured ink layer of 100 to 110 μm on the surface. Example 3 An ultraviolet curable ink having the following composition was prepared. This composition is the ink of Example 1 without the addition of isopropyl alcohol, and has a viscosity of 11 at 25°C.
It has increased to 00CpS. Urethane acrylate 100 parts by weight Polyester acrylate 100 2-methylhexyl acrylate 30 Trimethylolpropane triacrylate 10 Benzophenone 8 Thickness 0,1
## polyvinyl chloride sheet (manufactured by Mitsubishi Kasei ■) Using a gravure plate with a plate depth of 350 μm, an abstract pattern was printed with the above ink by a gravure method without using a doctor. The sheet was passed under an ozone-generating mercury lamp with an output of 160 W/cm at a speed of 5 m/m1n in the same manner as in Example 1, and a cured ink layer of 195 to 205 μm thick was formed on the surface of the sheet according to the present invention. I got a cosmetic sheet.
本発明の製造方法によれば、耐熱性に乏しいが施工性に
すぐれた基材シートを用いて、盛り上げ印刷による立体
的な意匠をもつ化粧シートを、熱による変形なしに得る
ことができる。
この化粧シートは、シートに歪がなく美麗な外観を有し
、施工が容易である。
１
２According to the manufacturing method of the present invention, a decorative sheet having a three-dimensional design by raised printing can be obtained without deformation due to heat, using a base sheet that has poor heat resistance but excellent workability. This decorative sheet has a beautiful appearance with no distortion in the sheet, and is easy to install. 1 2
Claims (4)
、電離放射線硬化性樹脂をビヒクルとするインキを用い
、版深が１００〜６００μｍのグラビア版を使用したグ
ラビア盛り上げ印刷により絵柄インキ層を設け、ついで
電離放射線を照射してこのインキ層を硬化させることか
らなる化粧シートの製造方法。(1) On a plastic base sheet with excellent workability, a pattern ink layer is formed using ink with an ionizing radiation-curable resin as a vehicle, by gravure build-up printing using a gravure plate with a plate depth of 100 to 600 μm. , and then curing the ink layer by irradiating it with ionizing radiation.
印刷法によって行なう請求項１の製造方法。(2) The manufacturing method according to claim 1, wherein the raised printing is performed by a gravure printing method that does not use a doctor.
下のものを用いて行なう請求項１または２の製造方法。(3) The manufacturing method according to claim 1 or 2, wherein the ink contains an organic solvent of 50% by weight or less.
方または両方の面に、厚さが１０μｍ以上４００μｍ以
下の電離放射線硬化型インキの硬化した絵柄インキ層を
設けてなる化粧シート。(4) A decorative sheet comprising a hardened pattern ink layer of ionizing radiation-curable ink having a thickness of 10 μm or more and 400 μm or less on one or both sides of a plastic base sheet with excellent workability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34342889A JPH03202176A (en) | 1989-12-27 | 1989-12-27 | Decorative sheet and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34342889A JPH03202176A (en) | 1989-12-27 | 1989-12-27 | Decorative sheet and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03202176A true JPH03202176A (en) | 1991-09-03 |
Family
ID=18361441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34342889A Pending JPH03202176A (en) | 1989-12-27 | 1989-12-27 | Decorative sheet and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03202176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08244193A (en) * | 1995-03-15 | 1996-09-24 | Toppan Printing Co Ltd | Decorative sheet with uneven pattern on surface |
| JPH1086313A (en) * | 1996-09-18 | 1998-04-07 | Dainippon Printing Co Ltd | Decorative material |
-
1989
- 1989-12-27 JP JP34342889A patent/JPH03202176A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08244193A (en) * | 1995-03-15 | 1996-09-24 | Toppan Printing Co Ltd | Decorative sheet with uneven pattern on surface |
| JPH1086313A (en) * | 1996-09-18 | 1998-04-07 | Dainippon Printing Co Ltd | Decorative material |
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