JP2003039872A - Exterior fitting part of writing utensil - Google Patents
Exterior fitting part of writing utensilInfo
- Publication number
- JP2003039872A JP2003039872A JP2001234721A JP2001234721A JP2003039872A JP 2003039872 A JP2003039872 A JP 2003039872A JP 2001234721 A JP2001234721 A JP 2001234721A JP 2001234721 A JP2001234721 A JP 2001234721A JP 2003039872 A JP2003039872 A JP 2003039872A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- titanium oxide
- fitting part
- antibacterial
- apatite
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軸筒やキャップな
どの筆記具の外装部品に関し、更には抗菌性を有する筆
記具の外装部品に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior component of a writing instrument such as a barrel and a cap, and more particularly to an exterior component of a writing instrument having antibacterial properties.
【０００２】[0002]
【従来の技術】筆記具の外装部品、つまり筆記具の軸筒
やキャップなどは筆記時に直接指先に触れるので、細菌
や汚染物質が付着するが、最近では清潔性を好む風潮が
強く、このため、付着した細菌や汚染物質を分解する抗
菌性能を有する筆記具が実用化されている。特に、市役
所などの公共の場所に配置されている筆記具は、不特定
の多数の人が使用するので、抗菌筆記具の必要性が大き
い。2. Description of the Related Art The exterior parts of writing instruments, that is, the barrels and caps of writing instruments, come into direct contact with the fingertips during writing, so bacteria and contaminants adhere to them, but recently there is a strong tendency to prefer cleanliness. Writing instruments having antibacterial properties that decompose the bacteria and pollutants have been put to practical use. In particular, a writing instrument placed in a public place such as a city hall is used by a large number of unspecified persons, and thus there is a great need for an antibacterial writing instrument.
【０００３】[0003]
【発明が解決しようとする課題】従来の抗菌筆記具は、
軸筒やキャップなどの外装部品を銀系抗菌剤などを混合
したプラスチック成形材料で成形したものが多い。この
銀系抗菌剤を使用した抗菌筆記具は、当初は強い抗菌性
を発揮するが、時間の経過とともに抗菌性能が低下する
不具合がある。また、抗菌剤自体に刺激性があり、有害
性が問題視されることがある。[Problems to be Solved by the Invention] A conventional antibacterial writing instrument is
In many cases, exterior parts such as shafts and caps are molded with a plastic molding material mixed with a silver-based antibacterial agent. An antibacterial writing instrument using this silver-based antibacterial agent exhibits a strong antibacterial property at the beginning, but there is a problem that the antibacterial performance decreases with the passage of time. Further, the antibacterial agent itself is irritating, and its harmfulness may be a problem.
【０００４】そこで本発明は、安全で抗菌性能が強く、
しかも抗菌性能が経時変化せずに長期間持続する筆記具
の外装部品を提供することを目的とする。Therefore, the present invention is safe and has strong antibacterial performance.
Moreover, it is an object of the present invention to provide an exterior part of a writing instrument whose antibacterial performance does not change over time and continues for a long time.
【０００５】[0005]
【課題を解決するための手段】かかる目的を達成するた
めに、請求項１の発明は、アパタイト被覆型酸化チタン
が有機バインダーで固められた光触媒層を筆記具の外装
部品の最上層に転写する。また、請求項２の発明のよう
に、光触媒層の下層に絵柄層を設けると興趣に富んだ抗
菌筆記具とすることができる。In order to achieve the above object, the invention of claim 1 transfers a photocatalyst layer in which apatite-coated titanium oxide is fixed with an organic binder to the uppermost layer of the exterior component of a writing instrument. Further, as in the second aspect of the invention, by providing a picture layer under the photocatalyst layer, the antibacterial writing tool can be made rich in interest.
【０００６】酸化チタンは紫外線照射下で水分と接触す
ると水を酸化分解して非常に酸化力の大きいヒドロキシ
ラジカルを発生させるので、その光触媒作用を利用して
有害化学物質を分解して無害化することが行われてい
る。このため従来より、酸化チタンは水処理や大気浄
化、あるいは抗菌材料として利用されている。When titanium oxide comes into contact with water under irradiation of ultraviolet rays, it oxidizes and decomposes water to generate hydroxy radicals having a great oxidizing power. Therefore, its photocatalytic action is used to decompose harmful chemical substances to render them harmless. Is being done. Therefore, titanium oxide has hitherto been used as water treatment, air purification, or antibacterial material.
【０００７】そこで、この酸化チタンを筆記具の外装部
品に利用すると、発生したヒドロキシラジカルが表面に
付着した細菌や汚染物質などの有機物を水と二酸化炭素
に分解し、無害化することが考えられる。この酸化チタ
ンは、それ自体非常に安全性が高い物質であるため、人
体に与える影響は極めて少ない。また、酸化チタンの光
触媒としての機能は劣化しないので、半永久的にその効
果を持続することができる。しかし、この光触媒機能の
ある酸化チタンを有機バインダーで固めると、酸化チタ
ンの光触媒機能により有機バインダー自体を分解するチ
ョーキング現象が生じる。Therefore, when this titanium oxide is used for the exterior parts of a writing instrument, it is considered that the generated hydroxyl radicals decompose organic substances such as bacteria and pollutants adhering to the surface into water and carbon dioxide to make them harmless. Since this titanium oxide is a substance having a very high safety in itself, it has very little effect on the human body. Moreover, since the function of titanium oxide as a photocatalyst does not deteriorate, the effect can be maintained semipermanently. However, when this titanium oxide having a photocatalytic function is hardened with an organic binder, a choking phenomenon occurs in which the organic binder itself is decomposed by the photocatalytic function of titanium oxide.
【０００８】そこで本発明においては、粒径が１５〜３
０ｎｍ程度のアナターゼ型酸化チタンの微粒子の表面に
数オングストロームの厚みでアパタイトを被覆したもの
を使用する。つまり、かかるアパタイト被覆型酸化チタ
ン微粒子を有機バインダーで固めて光触媒層とする。こ
の光触媒層は極めて薄い透明な膜であるので、その下層
にいろいろな絵柄を施せばファッション性に富み、極め
て興趣に富んだ抗菌筆記具とすることができる。Therefore, in the present invention, the particle size is 15 to 3
The surface of fine particles of anatase type titanium oxide of about 0 nm is coated with apatite with a thickness of several angstroms. That is, such apatite-coated titanium oxide fine particles are hardened with an organic binder to form a photocatalyst layer. Since this photocatalyst layer is an extremely thin transparent film, it is possible to make an antibacterial writing instrument with a great variety of fashionable features by applying various patterns to the lower layer.
【０００９】アパタイトは、フッ素、塩素、水酸基を含
む非常に安定性の高いカルシウムのリン酸塩であるが、
蛋白質の吸着能があり、細菌や汚染物質を吸着する特性
を有する。このアパタイト被覆型酸化チタン微粒子を有
機バインダーで固めた光触媒層を外装部品の最上層に転
写すると、軸筒やキャップなどの外装部品の表面に付着
した細菌や汚染物質をアパタイトが吸着し、この吸着さ
れた細菌や汚染物質の有機物を酸化チタンの光触媒作用
により強力に分解するので、優れた抗菌効果を得ること
ができる。また、アパタイトの膜があるため酸化チタン
の微粒子が直接有機バインダーに接触せず、従って有機
バインダーを分解せず、チョーキング現象が生じない。Apatite is a highly stable calcium phosphate containing fluorine, chlorine and a hydroxyl group.
It has the ability to adsorb proteins and has the property of adsorbing bacteria and contaminants. When the photocatalyst layer obtained by hardening the apatite-coated titanium oxide fine particles with an organic binder is transferred to the uppermost layer of the exterior parts, the apatite adsorbs bacteria and contaminants adhering to the surface of the exterior parts such as the shaft cylinder and the cap. Since the decomposed organic substances of bacteria and pollutants are strongly decomposed by the photocatalytic action of titanium oxide, an excellent antibacterial effect can be obtained. Further, since there is an apatite film, the titanium oxide fine particles do not come into direct contact with the organic binder, so that the organic binder is not decomposed and the chalking phenomenon does not occur.
【００１０】[0010]
【発明の実施の形態】以下に示す実施例および比較例の
とおりにボールペンの軸筒を成形した。
〔実施例〕図１は、軸筒の表面に転写フイルムを転写す
る状態を示す断面図であるが、転写フイルムは、ベース
フイルム１、光触媒層２、絵柄層３、接着層４からな
る。ベースフイルム１は、膜厚が１５μｍの透明なポリ
エチレンテレフタレートフイルムであり、表面が平滑で
剥離性を有するものである。ベースフイルム１の表面に
光触媒層２が形成されている。光触媒層２は、「ジュピ
ターＦ４−ＡＰ」に有機バインダーとしてアクリル樹脂
を加えて塗料化し、これをグラビアコート法により１．
０μｍの膜厚に形成したものである。「ジュピターＦ４
−ＡＰ」は、粒径３０ｎｍ、比表面積３５〜６０ｍ２／
ｇ、ルチル度５０％以下の昭和電工株式会社製アパタイ
ト被覆型酸化チタン微粒子である。「ジュピターＦ４−
ＡＰ」とアクリル樹脂の混合比は、重量比で１：２〜３
程度がよい。光触媒層２の表面に、グラビアインキを用
いてグラビア印刷により絵柄層３を形成する。そして絵
柄層３の上に接着層４を形成する。接着層４の素材は、
軸筒の表面である被転写物層５の材質により適宜選択す
るが、被転写物層５がポリプレンの場合は、例えばアク
リル樹脂系感熱接着剤をリバースコート法により膜厚５
μｍの接着層４とする。BEST MODE FOR CARRYING OUT THE INVENTION A barrel of a ballpoint pen was molded according to the following examples and comparative examples. [Embodiment] FIG. 1 is a sectional view showing a state in which a transfer film is transferred onto the surface of a barrel. The transfer film comprises a base film 1, a photocatalyst layer 2, a pattern layer 3 and an adhesive layer 4. The base film 1 is a transparent polyethylene terephthalate film having a film thickness of 15 μm, and has a smooth surface and releasability. The photocatalyst layer 2 is formed on the surface of the base film 1. The photocatalyst layer 2 was made into a paint by adding an acrylic resin as an organic binder to "Jupiter F4-AP", and the photocatalyst layer 2 was formed by a gravure coating method.
It is formed to a film thickness of 0 μm. "Jupiter F4
-AP "is, particle size 30nm, specific surface area 35~60m 2 /
g, apatite-coated titanium oxide fine particles manufactured by Showa Denko KK having a rutile degree of 50% or less. "Jupiter F4-
The mixing ratio of “AP” and acrylic resin is 1: 2 to 3 by weight.
The degree is good. A pattern layer 3 is formed on the surface of the photocatalyst layer 2 by gravure printing using gravure ink. Then, the adhesive layer 4 is formed on the pattern layer 3. The material of the adhesive layer 4 is
The material is appropriately selected depending on the material of the transferred material layer 5 which is the surface of the shaft cylinder. When the transferred material layer 5 is polyprene, for example, an acrylic resin-based heat-sensitive adhesive is applied to a film thickness of 5 by a reverse coating method.
The adhesive layer 4 has a thickness of μm.
【００１１】かかる転写フイルムを、軸筒の表面である
被転写物層５と２２０℃に加熱されたゴムロールの間に
通し、ゴムロールを回転させながら所定の圧力で転写フ
イルムを被転写物層５に押し付けると、ベースフイルム
１が光触媒層２から剥離して転写され、光触媒層２が最
上層に現れる。The transfer film is passed between the transfer layer 5 which is the surface of the barrel and the rubber roll heated to 220 ° C., and the transfer film is transferred to the transfer layer 5 at a predetermined pressure while rotating the rubber roll. When pressed, the base film 1 is peeled off from the photocatalyst layer 2 and transferred, and the photocatalyst layer 2 appears on the uppermost layer.
【００１２】〔比較例〕光触媒層を有しない通常の転写
フイルムにてボールペンの軸筒の表面に転写処理を施し
た。[Comparative Example] The surface of the barrel of the ball-point pen was subjected to transfer treatment with a normal transfer film having no photocatalyst layer.
【００１３】前記２本のボールペンを１日２時間程度１
週間連続して使用し、軸筒の表面に付着した微生物の一
般性菌数を調べた。そして、７：００〜１９：００の間
の平均照度が５５００ルクスの室内窓際に１週間放置
し、微生物の一般性菌数を調べて、テスト（紫外線照射
下で１週間放置）前後の一般性菌数の変化を調査した。
一般性菌数の測定方法は、先ず、２本の供試の軸筒を標
準寒天培地の上にそれぞれ載せ、培地に菌を付着させ
る。これを３５℃において４８時間培養して培養器から
取り出し、培地上で発育している菌のコロニー数をカウ
ントした。その結果を表１に示す。表１の数値はコロニ
ー数を示す。Use the above two ballpoint pens for about 2 hours a day
After continuous use for a week, the number of general bacteria of the microorganisms adhering to the surface of the barrel was examined. Then, the sample was left for 1 week at an indoor window where the average illuminance between 7:00 and 19:00 was 5500 lux, and the general bacterial count of the microorganism was examined to determine the generality before and after the test (left for 1 week under UV irradiation). The change in the number of bacteria was investigated.
In the method for measuring the number of general bacteria, first, two test cylinders are placed on a standard agar medium, and the bacteria are attached to the medium. This was cultured at 35 ° C. for 48 hours, taken out from the incubator, and the number of colonies of bacteria growing on the medium was counted. The results are shown in Table 1. The numerical value in Table 1 shows the number of colonies.
【００１４】[0014]
【表１】 [Table 1]
【００１５】表１から分かるように、最上層に光触媒層
を転写した実施例は、紫外線照射によって一般性菌数が
著しく減少し、抗菌効果が大きいことが確認できた。こ
れに対して、光触媒層を形成しない比較例は、抗菌効果
がなく、逆に室内放置中に菌自体が増殖したり、新たな
空中落下菌が付着して一般性菌数が増加した。As can be seen from Table 1, in the examples in which the photocatalytic layer was transferred to the uppermost layer, the number of general bacteria was remarkably reduced by the irradiation of ultraviolet rays, and it was confirmed that the antibacterial effect was large. On the other hand, the comparative example in which the photocatalytic layer was not formed did not have an antibacterial effect, and conversely, the bacteria themselves proliferated while left indoors, or new airborne bacteria adhered to increase the number of general bacteria.
【００１６】[0016]
【発明の効果】以上説明したように、本発明は、アパタ
イト被覆型酸化チタンが有機バインダーで固められた光
触媒層を筆記具の外装部品の最上層に転写したので、安
全で抗菌性能が強く、しかも抗菌性能が経時変化せずに
長期間持続する筆記具の外装部品とすることができる。
また、光触媒層の下層にファッション性に富んだ絵柄を
施すと興趣に富んだ抗菌筆記具とすることができる。As described above, according to the present invention, since the photocatalytic layer in which the apatite-coated titanium oxide is hardened with the organic binder is transferred to the uppermost layer of the exterior parts of the writing instrument, it is safe and has a strong antibacterial property. It can be used as an exterior part of a writing instrument whose antibacterial performance does not change over time and continues for a long time.
In addition, an antibacterial writing tool rich in interest can be obtained by applying a fashionable pattern to the lower layer of the photocatalyst layer.
【図１】転写工程の説明図である。FIG. 1 is an explanatory diagram of a transfer process.
１ ベースフイルム ２ 光触媒層 ３ 絵柄層 ４ 接着層 ５ 被転写物層（軸筒） 1 base film 2 Photocatalyst layer 3 picture layers 4 Adhesive layer 5 Transferred material layer (axial cylinder)
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年８月１７日（２００１．８．１
７）[Submission date] August 17, 2001 (2001.8.1)
7)
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】[0010]
【発明の実施の形態】以下に示す実施例および比較例の
とおりにボールペンの軸筒を成形した。
〔実施例〕図１は、軸筒の表面に転写フイルムを転写す
る状態を示す断面図であるが、転写フイルムは、ベース
フイルム１、光触媒層２、絵柄層３、接着層４からな
る。ベースフイルム１は、膜厚が１５μｍの透明なポリ
エチレンテレフタレートフイルムであり、表面が平滑で
剥離性を有するものである。ベースフイルム１の表面に
光触媒層２が形成されている。光触媒層２は、「ジュピ
ターＦ４−ＡＰ」に有機バインダーとしてアクリル樹脂
を加えて塗料化し、これをグラビアコート法により１．
０μｍの膜厚に形成したものである。「ジュピターＦ４
−ＡＰ」は、粒径３０ｎｍ、比表面積３５〜６０ｍ２／
ｇ、ルチル度５０％以下の昭和電工株式会社製アパタイ
ト被覆型酸化チタン微粒子である。「ジュピターＦ４−
ＡＰ」とアクリル樹脂の混合比は、重量比で１：２〜３
程度がよい。光触媒層２の表面に、グラビアインキを用
いてグラビア印刷により絵柄層３を形成する。そして絵
柄層３の上に接着層４を形成する。接着層４の素材は、
軸筒の表面である被転写物層５の材質により適宜選択す
るが、被転写物層５がポリプロピレンの場合は、例えば
アクリル樹脂系感熱接着剤をリバースコート法により膜
厚５μｍの接着層４とする。BEST MODE FOR CARRYING OUT THE INVENTION A barrel of a ballpoint pen was molded according to the following examples and comparative examples. [Embodiment] FIG. 1 is a sectional view showing a state in which a transfer film is transferred onto the surface of a barrel. The transfer film comprises a base film 1, a photocatalyst layer 2, a pattern layer 3 and an adhesive layer 4. The base film 1 is a transparent polyethylene terephthalate film having a film thickness of 15 μm, and has a smooth surface and releasability. The photocatalyst layer 2 is formed on the surface of the base film 1. The photocatalyst layer 2 was made into a paint by adding an acrylic resin as an organic binder to "Jupiter F4-AP", and the photocatalyst layer 2 was formed by a gravure coating method.
It is formed to a film thickness of 0 μm. "Jupiter F4
-AP "is, particle size 30nm, specific surface area 35~60m 2 /
g, apatite-coated titanium oxide fine particles manufactured by Showa Denko KK having a rutile degree of 50% or less. "Jupiter F4-
The mixing ratio of “AP” and acrylic resin is 1: 2 to 3 by weight.
The degree is good. A pattern layer 3 is formed on the surface of the photocatalyst layer 2 by gravure printing using gravure ink. Then, the adhesive layer 4 is formed on the pattern layer 3. The material of the adhesive layer 4 is
The material is appropriately selected depending on the material of the transferred material layer 5 which is the surface of the shaft cylinder. When the transferred material layer 5 is polypropylene , for example, an acrylic resin-based heat-sensitive adhesive is applied to the adhesive layer 4 having a thickness of 5 μm by a reverse coating method. To do.
Claims (2)
ンダーで固められた光触媒層が最上層に転写されたこと
を特徴とする筆記具の外装部品。1. An exterior component for a writing instrument, wherein a photocatalytic layer in which apatite-coated titanium oxide is hardened with an organic binder is transferred to the uppermost layer.
ことを特徴とする請求項１記載の筆記具の外装部品。2. The exterior component for a writing instrument according to claim 1, wherein a pattern layer is formed below the photocatalyst layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234721A JP2003039872A (en) | 2001-08-02 | 2001-08-02 | Exterior fitting part of writing utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234721A JP2003039872A (en) | 2001-08-02 | 2001-08-02 | Exterior fitting part of writing utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003039872A true JP2003039872A (en) | 2003-02-13 |
Family
ID=19066278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001234721A Pending JP2003039872A (en) | 2001-08-02 | 2001-08-02 | Exterior fitting part of writing utensil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003039872A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026276A1 (en) * | 2003-09-11 | 2005-03-24 | Kabushiki Kaisha Zac | Coating material |
| JP2008050559A (en) * | 2006-07-25 | 2008-03-06 | Buhei Uchida | Coating |
| JP2008231260A (en) * | 2007-03-20 | 2008-10-02 | Able Engineering Kk | Water-based coating and method for producing the same |
| JP2010253842A (en) * | 2009-04-27 | 2010-11-11 | Pilot Ink Co Ltd | Thermally discoloring writing instrument |
-
2001
- 2001-08-02 JP JP2001234721A patent/JP2003039872A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026276A1 (en) * | 2003-09-11 | 2005-03-24 | Kabushiki Kaisha Zac | Coating material |
| JPWO2005026276A1 (en) * | 2003-09-11 | 2007-11-08 | 株式会社ザック | Coating material |
| JP2008050559A (en) * | 2006-07-25 | 2008-03-06 | Buhei Uchida | Coating |
| JP2008231260A (en) * | 2007-03-20 | 2008-10-02 | Able Engineering Kk | Water-based coating and method for producing the same |
| JP2010253842A (en) * | 2009-04-27 | 2010-11-11 | Pilot Ink Co Ltd | Thermally discoloring writing instrument |
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