JPH0456675B2 - - Google Patents
Info
- Publication number
- JPH0456675B2 JPH0456675B2 JP57135417A JP13541782A JPH0456675B2 JP H0456675 B2 JPH0456675 B2 JP H0456675B2 JP 57135417 A JP57135417 A JP 57135417A JP 13541782 A JP13541782 A JP 13541782A JP H0456675 B2 JPH0456675 B2 JP H0456675B2
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- unevenness
- transparent
- shadow mask
- concave
- 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
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 238000010894 electron beam technology Methods 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、小型電気機器製品などの被処理体
の表面に、紫外線もしくは電子線硬化性樹脂で所
望形状の凹凸を形成する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for forming irregularities in a desired shape on the surface of a workpiece such as a small electric appliance product using an ultraviolet ray or electron beam curable resin.
被処理体の表面に種々形状の凹凸即ち立体的な
浮彫模様などを形成する方法としては、一般に、
被処理体がプラスチツク成形品の場合は被処理体
の成形金型を用いて被処理体を成形すると同時に
その表面に凹凸を一体に成形している。
Generally, methods for forming irregularities of various shapes, ie, three-dimensional relief patterns, etc. on the surface of the object to be processed include:
When the object to be processed is a plastic molded article, the object to be processed is molded using a mold for the object to be processed, and at the same time, irregularities are integrally formed on its surface.
しかし、上記した方法では凹凸の形状いかんに
よつては、被処理体成形品の肉厚が不均一とな
り、ヒケ（凹み）発生などの成形不良を招きやす
いばかりか、金型加工の製作が厄介であり、加工
コスト高となる。とくに、凹凸の表面に更に小さ
い凹凸を形成する場合には金型製作がよく困難と
なる。
However, with the above method, depending on the shape of the unevenness, the thickness of the molded product to be processed may become uneven, which not only tends to lead to molding defects such as sink marks (dents), but also makes it difficult to manufacture the mold. This results in high processing costs. In particular, when forming even smaller irregularities on the surface of the irregularities, it is often difficult to manufacture a mold.
この発明の目的は、かかる不具合な問題を解消
し、被処理体の表面に、紫外線もしくは電子線硬
化性樹脂で所望形状の凹凸を成形金型を用いるこ
となく簡単に形成できる方法を提供しようとする
ものである。 The purpose of the present invention is to eliminate such inconvenient problems and to provide a method for easily forming unevenness of a desired shape on the surface of an object to be treated using an ultraviolet ray or electron beam curable resin without using a mold. It is something to do.
この発明の方法では、図示例に示すように、被
処理体１の表面に紫外線もしくは電子線硬化性樹
脂を塗布して塗膜２を形成する工程と、未硬化状
態下で該塗膜２の表面に、内面に凹凸６を有し、
かつ紫外線もしくは電子線を透過させる透過部４
と紫外線もしくは電子線を透過させない非透過部
５とを有するシヤドウマスク兼凹凸型板３を重
ね、該凹凸型板３の表面に紫外線もしくは電子線
を照射して塗膜２の前記透過部４と一致する部分
４ａを硬化させる工程と、塗膜硬化後にシヤドウ
マスク兼凹凸型板３を塗膜２から離型する工程
と、離型後塗膜２の前記非透過部５と一致する部
分５ａを溶剤で除去する工程とからなる。
As shown in the illustrated example, the method of the present invention includes a step of applying an ultraviolet ray or electron beam curable resin to the surface of an object to be treated 1 to form a coating film 2, and a step of forming a coating film 2 in an uncured state. It has unevenness 6 on the surface and on the inner surface,
and a transmitting part 4 that transmits ultraviolet rays or electron beams.
A shadow mask/concave/convex pattern board 3 having a non-transparent part 5 that does not transmit ultraviolet rays or electron beams is stacked, and the surface of the concave/convex pattern plate 3 is irradiated with ultraviolet rays or electron beams to match the transparent part 4 of the coating film 2. a step of curing the portion 4a of the coating film 2, a step of releasing the shadow mask/concave/convex mold plate 3 from the coating film 2 after the coating film is cured, and a step of curing the portion 5a of the coating film 2 that corresponds to the non-transparent portion 5 with a solvent after the mold release. It consists of a step of removing.
上記工程を経ることにより被処理体１の表面に
紫外線もしくは電子線照射で硬化する樹脂からな
る凸状の部分４ａと未硬化のままで除去される凹
状の部分５ａとからなる第１凹凸９が形成される
と同時に、第１凹凸９の表面にシヤドウマスク兼
凹凸型板３の内面の凹凸６により第２凹凸７が型
付けされる。
By going through the above steps, a first unevenness 9 is formed on the surface of the object to be processed 1, which consists of a convex part 4a made of a resin that is cured by ultraviolet rays or electron beam irradiation, and a concave part 5a that is removed without being cured. At the same time as being formed, second asperities 7 are formed on the surface of the first asperities 9 by means of the asperities 6 on the inner surface of the shadow mask/concave/convex mold plate 3 .
この発明の方法によれば、被処理体１の表面に
凹凸を形成するに際し紫外線もしくは電子線硬化
性樹脂を用いるので、極めて短時間に硬化し生産
性を向上できる。またその樹脂の硬化に熱を必要
としないため、加熱を不適当とする被処理体１に
も凹凸を良好に形成できる。とくに、内面に凹凸
６を有し、かつ紫外線もしくは電子線を透過させ
る透過部４と紫外線もしくは電子線を透過させな
い非透過部５とを有するシヤドウマスク兼凹凸型
板３を用いることにより、被処理体１の表面に第
１凹凸９を形成すると同時にその表面に第２凹凸
７を型付けすることができるため、成形金型を用
いて凹凸を形成するよりも簡単にかつ低コストで
製造できる。
According to the method of the present invention, since an ultraviolet ray or electron beam curable resin is used to form irregularities on the surface of the object to be processed 1, the resin can be cured in an extremely short time and productivity can be improved. Further, since heat is not required for curing the resin, irregularities can be formed satisfactorily even on the object 1 to be treated, for which heating is inappropriate. In particular, by using a shadow mask/concave/convex mold plate 3 having unevenness 6 on the inner surface and having a transparent part 4 that transmits ultraviolet rays or electron beams and a non-transmissive part 5 that does not transmit ultraviolet rays or electron beams, it is possible to Since it is possible to form the first asperity 9 on the surface of the material 1 and to mold the second asperity 7 on the surface at the same time, it can be manufactured more easily and at lower cost than forming the asperity using a molding die.
以下、この発明の実施例を図面に基づき説明す
る。
Embodiments of the present invention will be described below based on the drawings.
この実施例では、第３図に示すように被処理体
１の表面に浮彫状の文字、記号、図形等の第１凹
凸９を形成すると同時に、第１凹凸９の表面に虹
彩色を現出する微細な第２凹凸７を形成する。 In this embodiment, as shown in FIG. 3, first irregularities 9 such as embossed characters, symbols, figures, etc. are formed on the surface of the object 1 to be processed, and at the same time, an iris color is created on the surface of the first irregularities 9. A fine second unevenness 7 is formed.
第１図および第２図において、まず、被処理体
１の表面に、透明な紫外線硬化性樹脂をコーテイ
ングして塗膜２を形成し、次いで該塗膜２が未硬
化状態の下で該塗膜２の表面にシヤドウマスク兼
凹凸型板３を重ね合わす。 1 and 2, first, the surface of the object to be treated 1 is coated with a transparent ultraviolet curable resin to form a coating film 2, and then the coating film 2 is left in an uncured state. A shadow mask/concave/convex template 3 is superimposed on the surface of the membrane 2.
シヤドウマスク兼凹凸型板３は、透明板の表面
に、所望の文字、記号、図形あるいは塗膜必要領
域を区画するようなパターンマスクを形成すべく
透明板のままにして紫外線を透過させる透過部４
と、紫外線を透過させないよう着色不透明にする
非透過部５とを設けるとともに、透明板の内面全
体もしくは透過部４の内面側のみに多数の小さい
凹凸６を該設してある。 The shadow mask/concave/convex pattern plate 3 is a transparent plate 4 that allows ultraviolet rays to pass through the transparent plate in order to form a pattern mask on the surface of the transparent plate that demarcates desired characters, symbols, figures, or areas where a coating film is required.
and a non-transparent part 5 which is colored and opaque so as not to transmit ultraviolet rays, and a large number of small irregularities 6 are provided on the entire inner surface of the transparent plate or only on the inner surface side of the transparent plate 4.
このシヤドウマスク兼凹凸型板３を未硬化な塗
膜２の表面に重ね合せてから紫外線を照射する。
すると、塗膜２はこの表面がシヤドウマスク兼凹
凸型板３の内面の凹凸６で第２凹凸７に型付けさ
れるとともに、透過部４に一致する部分４ａが紫
外線照射で硬化され、非透過部分５に一致する部
分５ａが未硬化な状態のまま残る。 This shadow mask/concave/convex template 3 is superimposed on the surface of the uncured coating film 2, and then ultraviolet rays are irradiated.
Then, the surface of the coating film 2 is molded into second asperities 7 by the asperities 6 on the inner surface of the shadow mask/concave-convex template 3, and the portion 4a corresponding to the transparent portion 4 is cured by ultraviolet irradiation, and the non-transparent portion 5 is formed. The portion 5a corresponding to 2 remains in an uncured state.
しかる後、シヤドウマスク兼凹凸型板３を離型
し、溶剤で塗膜２の未硬化な部分５ａを洗浄除去
すれば、第３図および第４図に示すごとく被処理
体１の表面に、第２凹凸７が表面に型付けされた
目的の文字、記号あるいは図形等の塗膜必要領域
に合つた第１凹凸９が一体に形成される。 After that, the shadow mask/concave/convex mold plate 3 is released, and the uncured portion 5a of the coating film 2 is washed and removed with a solvent. A first unevenness 9 is integrally formed on the surface of the first unevenness 7, which corresponds to an area in which a coating film is required, such as a target character, symbol, or figure.
ここで被処理体１の具体例としては、第５図に
示すように電気かみそり製品が挙げられ、この製
品のケース表面はABS樹脂で形成される。この
表面に、例えばアクリロイル基を分子中に持つア
クリル系オリゴマーを主体とする光重合性樹脂な
どの紫外線硬化性樹脂による「ABC」や
「PUSH」の文字の第１凹凸９が上記した方法で
一体形成される。その第１凹凸９の表面に型付け
された第２凹凸７は筋目状に形成し、１本の凸条
の断面形状は三角形とし、その本数は大体１mmあ
たり300〜500本程度とする。 Here, a specific example of the object to be processed 1 is an electric shaver product as shown in FIG. 5, and the surface of the case of this product is made of ABS resin. On this surface, the first unevenness 9 of the letters "ABC" or "PUSH" made of an ultraviolet curable resin such as a photopolymerizable resin mainly composed of an acrylic oligomer having an acryloyl group in the molecule is integrated by the method described above. It is formed. The second unevenness 7 molded on the surface of the first unevenness 9 is formed in the form of a line, and each protrusion has a triangular cross-sectional shape, and the number of protrusions is about 300 to 500 per mm.
このようにして得られた第１凹凸９の場合には
これに光が当ると、鮮やかな色に輝き、見る方向
によつてその色が虹の色のようにかわる。これは
光の分散による。すなわち、光線は第２凹凸７に
よつて屈折と反射とを受けてマルチプリズムと同
じように光を７色のスペクトルに分けるので、第
２凹凸７を出た光は７色の虹となつてあらわれる
のである。 When the first unevenness 9 obtained in this manner is exposed to light, it shines in a vivid color, and the color changes like a rainbow depending on the viewing direction. This is due to the dispersion of light. In other words, the light rays are refracted and reflected by the second unevenness 7, dividing the light into a seven-color spectrum like a multiprism, so the light that exits the second unevenness 7 becomes a rainbow of seven colors. It will appear.
なお、第２凹凸７は図示する平行な筋目以外
に、第１凹凸９の表面に形成できるものであれば
多角形、あるいは半球形状のように整列された凹
凸や不揃いな凹凸に形成してもよい。 In addition to the parallel lines shown in the figure, the second unevenness 7 may be formed into a polygonal shape, or irregular unevenness such as a hemispherical pattern or a polygonal shape, as long as it can be formed on the surface of the first unevenness 9. good.
勿論、第２凹凸７が不揃いな場合はつや消し状
態となる。 Of course, if the second unevenness 7 is irregular, it will be in a matte state.
紫外線硬化性樹脂に代え、電子線硬化性樹脂で
あつてもよく、また紫外線もしくは電子線硬化性
樹脂は半透明体であつてもよい。 Instead of the ultraviolet curable resin, an electron beam curable resin may be used, and the ultraviolet ray or electron beam curable resin may be semitransparent.
図面はこの発明の一実施例を示すもので、第１
図は被処理体の表面の塗膜にシヤドウマスク兼凹
凸型板を重ねた状態を示す斜視図、第２図は紫外
線照射状態を示す断面図、第３図は被処理体の表
面に凹凸が形成された状態を示す斜視図、第４図
は凹凸の断面図、第５図は凹凸の施された電気か
みそりの斜視図である。
１……被処理体、２……塗膜、３……シヤドウ
マスク兼凹凸型板、４……透過部、５……非透過
部、６……シヤドウマスク兼凹凸型板の凹凸、７
……第２凹凸、９……第１凹凸。
The drawings show one embodiment of the invention.
The figure is a perspective view showing a state in which a shadow mask and concavo-convex template is superimposed on the coating film on the surface of the object to be treated, FIG. 2 is a cross-sectional view showing the state of ultraviolet irradiation, and FIG. FIG. 4 is a cross-sectional view of the unevenness, and FIG. 5 is a perspective view of the electric shaver with the unevenness. 1...Object to be treated, 2...Coating film, 3...Shadow mask and uneven template, 4...Transparent area, 5...Non-transparent area, 6...Irregularities of shadow mask and uneven template, 7
...Second unevenness, 9...First unevenness.
Claims (1)
化性樹脂を塗布して塗膜２を形成する工程と、 未硬化状態下で該塗膜２の表面に、内面に凹凸
６を有し、かつ紫外線もしくは電子線を透過させ
る透過部４と紫外線もしくは電子線を透過させな
い非透過部５とを有するシヤドウマスク兼凹凸型
板３を重ね、該凹凸型板３の表面に紫外線もしく
は電子線を照射して塗膜２の前記透過部４と一致
する部分４ａを硬化させる工程と、 塗膜硬化後にシヤドウマスク兼凹凸型板３を塗
膜２から離型する工程と、 離型後塗膜２の前記非透過部５と一致する部分
５ａを溶剤で除去する工程とからなることを特徴
とする、被処理体の表面に凹凸を形成する方法。[Scope of Claims] 1. A step of applying an ultraviolet or electron beam curable resin to the surface of the object to be treated 1 to form a coating film 2, and forming irregularities on the inner surface of the coating film 2 in an uncured state. 6 and has a transparent part 4 that transmits ultraviolet rays or electron beams and a non-transparent part 5 that does not transmit ultraviolet rays or electron beams. A step of curing the portion 4a of the coating film 2 that corresponds to the transparent portion 4 by irradiating an electron beam, a step of releasing the shadow mask/concave/convex template 3 from the coating film 2 after the coating film is cured, and coating after mold release. A method for forming irregularities on the surface of a processed object, comprising the step of removing a portion 5a of the membrane 2 that corresponds to the non-transparent portion 5 with a solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13541782A JPS5924729A (en) | 1982-08-02 | 1982-08-02 | Formation of rainbow-tinted pattern on surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13541782A JPS5924729A (en) | 1982-08-02 | 1982-08-02 | Formation of rainbow-tinted pattern on surface |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15267191A Division JPH04270634A (en) | 1991-05-27 | 1991-05-27 | Method for forming topcoat |
| JP15267291A Division JPH04261898A (en) | 1991-05-27 | 1991-05-27 | Method for transferring unevenness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5924729A JPS5924729A (en) | 1984-02-08 |
| JPH0456675B2 true JPH0456675B2 (en) | 1992-09-09 |
Family
ID=15151241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13541782A Granted JPS5924729A (en) | 1982-08-02 | 1982-08-02 | Formation of rainbow-tinted pattern on surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924729A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266245A (en) * | 1985-05-21 | 1986-11-25 | 大日本印刷株式会社 | Manufacture of surface reinforced embossed decorative sheet |
| JP2780034B2 (en) * | 1989-01-30 | 1998-07-23 | 大日本印刷株式会社 | How to apply uneven patterns |
| JPH0351993A (en) * | 1989-07-19 | 1991-03-06 | Matsushita Electric Ind Co Ltd | Home security device |
| JP2001029878A (en) * | 1999-07-27 | 2001-02-06 | Takeuchi Kogyo Kk | Coating body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945946A (en) * | 1972-09-09 | 1974-05-02 |
-
1982
- 1982-08-02 JP JP13541782A patent/JPS5924729A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945946A (en) * | 1972-09-09 | 1974-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5924729A (en) | 1984-02-08 |
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