JP2016064611A - Laminated sheet - Google Patents
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- JP2016064611A JP2016064611A JP2014195950A JP2014195950A JP2016064611A JP 2016064611 A JP2016064611 A JP 2016064611A JP 2014195950 A JP2014195950 A JP 2014195950A JP 2014195950 A JP2014195950 A JP 2014195950A JP 2016064611 A JP2016064611 A JP 2016064611A
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Abstract
【課題】PTP包装体の打ち抜きに用いられる刃の摩耗を少なくすることができる積層シートを提供する。【解決手段】アルミニウム箔上に、アルミナ・ジルコニア処理のルチル型酸化チタンを含有する白着色層を有する積層シート。【選択図】なしThe present invention provides a laminated sheet capable of reducing wear of a blade used for punching a PTP package. A laminated sheet having a white colored layer containing rutile titanium oxide treated with alumina and zirconia on an aluminum foil. [Selection figure] None
Description
本発明は、主にPTP包装体の蓋材に用いられる積層シートに関する。 The present invention relates to a laminated sheet mainly used as a lid material for a PTP package.
錠剤,カプセル剤などの医薬品の包装には、PTP包装体(プレススルーパック)が用いられることが多い。PTP包装体は、例えばポリ塩化ビニルやポリプロピレンなどからなる底材の収納凹部に医薬品を個別に収納し、アルミニウム箔などからなる蓋材で被覆されている。 A PTP package (press-through pack) is often used for packaging pharmaceutical products such as tablets and capsules. In the PTP package, for example, pharmaceuticals are individually stored in a storage recess of a bottom material made of polyvinyl chloride, polypropylene, or the like, and covered with a lid material made of aluminum foil or the like.
医薬品の偽造防止、取り違え事故の防止やトレーサビリティの確保に加え、医薬品の流通の効率化の観点から、PTP包装体の蓋材に、より詳細な情報に対応するバーコードが直接印刷表示されるようになった。厚生労働省医薬食品局安全対策課から発表された実施要項では、調剤包装単位(1次包装)ごとに上記内容のバーコード標記が必須とされている。このバーコードのデータの内容は、調剤包装単位ごとに変わらない不変情報(品名、価格、効能、効果等)の他、調剤包装単位ごとに変わる可変情報(製造番号、ロット番号、有効期限、生物由来情報等)を、一次元コード(バーコード)や二次元コード(QRコード(登録商標))によって印刷表示するものである。 In addition to preventing counterfeiting of pharmaceuticals, preventing accidents of misunderstanding and ensuring traceability, barcodes corresponding to more detailed information are directly printed and displayed on the lid of PTP packaging from the viewpoint of efficient distribution of pharmaceuticals. Became. According to the implementation guidelines announced by the Ministry of Health, Labor and Welfare, the Pharmaceutical Affairs Bureau, Safety Measures Division, the above-mentioned bar code is required for each dispensing packaging unit (primary packaging). The content of this barcode data is invariable information (product name, price, efficacy, effect, etc.) that does not change for each dispensing packaging unit, as well as variable information that changes for each dispensing packaging unit (manufacturing number, lot number, expiration date, biological). Origin information and the like) are printed and displayed by a one-dimensional code (bar code) or a two-dimensional code (QR code (registered trademark)).
PTP包装体の蓋材には視認性や前記バーコードなどの読み取りを良好にするため、アルミニウム箔上に白着色層を設けて、その上にバーコードの印刷を施すことがよく行われている(例えば、特許文献1〜4)。 In order to improve the visibility and the reading of the barcode and the like on the lid of the PTP package, it is often performed that a white colored layer is provided on the aluminum foil and the barcode is printed thereon. (For example, Patent Documents 1 to 4).
PTP包装体は蓋材を貼り合わせた後で所定の大きさに打ち抜く必要があるが、その際、長時間の連続打ち抜きによって打抜刃の摩耗が徐々に進行する現象が発生している。本発明はこの打抜刃の摩耗を防ぎ、耐用時間の向上を図ろうとするものである。 The PTP package needs to be punched to a predetermined size after the lid material is bonded, and at this time, a phenomenon that the wear of the punching blade gradually proceeds due to continuous punching for a long time has occurred. The present invention is intended to prevent wear of the punching blade and improve the service life.
本発明では、白着色層中の白色顔料として用いられる酸化チタンが、この打抜き刃の摩耗に影響していることを見出し、PTP包装体の蓋材に用いられる積層シートとして、特定の白着色層が刃の摩耗軽減に有効であることを見出したものである。
すなわち本発明は、アルミニウム箔上に、アルミナ・ジルコニア処理のルチル型酸化チタンを含有する白着色層を有する積層シートである。
In the present invention, it is found that titanium oxide used as a white pigment in the white colored layer affects the wear of this punching blade, and a specific white colored layer is used as a laminated sheet used for a lid of a PTP package. Has been found to be effective in reducing blade wear.
That is, the present invention is a laminated sheet having a white colored layer containing rutile titanium oxide treated with alumina and zirconia on an aluminum foil.
本発明による積層シートは、PTP包装体の打ち抜きに用いられる刃の摩耗を少なくすることができる。 The laminated sheet according to the present invention can reduce wear of a blade used for punching a PTP package.
本発明の積層シートは、アルミニウム箔と、アルミニウム箔の少なくとも一方の面に設けた白着色層を備えている。 The laminated sheet of the present invention includes an aluminum foil and a white colored layer provided on at least one surface of the aluminum foil.
本発明に用いられるアルミニウム箔は、公知のアルミニウム箔を用いることができ、特に限定されるものではないが、10〜30μm程度の厚さの硬質又は軟質のアルミニウム箔を用いることができる。特に、PTP包装体の蓋材に用いられる場合には硬質材が好ましい。なお、通常の上記アルミニウム箔は、一方の面が艶面、他方の面が艶ケシ面(単にケシ面ともいう。)と呼ばれ、両面の光沢が異なる。本発明では艶面あるいはケシ面のどちらに白着色層を設けてもよい。また、上記の片面艶箔以外にも、両面艶箔、両面艶ケシ箔を使用してもよい。 The aluminum foil used in the present invention can be a known aluminum foil, and is not particularly limited, but a hard or soft aluminum foil having a thickness of about 10 to 30 μm can be used. In particular, a hard material is preferable when used as a cover material for a PTP package. Note that the normal aluminum foil is called a glossy surface on one side and a glossy surface on the other side (also simply referred to as a poppy surface), and the gloss on both sides is different. In the present invention, a white colored layer may be provided on either the glossy surface or the poppy surface. Moreover, you may use double-sided glossy foil and double-sided glossy poppy foil other than said single-sided glossy foil.
本発明における白着色層は、バインダーとアルミナ・ジルコニア処理されたルチル型酸化チタンを含む。
アルミナ・ジルコニア処理されたルチル型酸化チタンの白着色層における割合は、一般的にバーコードリーダーによるバーコードの読み取り適性を考慮すると20重量%〜60重量%であり、好ましくは30重量%〜50重量%である。また、平均粒径は0.1〜0.4μmのものが好ましい。平均粒径は、電子顕微鏡法による。
バインダーとしては、例えば、塩化ビニル・酢酸ビニル系共重合樹脂、エポキシ樹脂、変性オレフィン系樹脂、ウレタン系樹脂、メラミン系樹脂等の一種又はこれらの混合物が使用できる。
また白着色層は乾燥時の塗布量で、一般に1.0g/m2〜4.0g/m2でアルミニウム箔上に形成されていることが好ましい。
白着色層をアルミニウム箔上に形成するには、従来公知の方法で形成することができ、例えば、グラビア印刷、オフセット印刷、UV塗装などで形成することができる。
The white colored layer in the present invention contains a binder and rutile titanium oxide treated with alumina and zirconia.
The ratio of the rutile-type titanium oxide treated with alumina and zirconia in the white colored layer is generally 20% by weight to 60% by weight, preferably 30% by weight to 50% by considering the readability of the barcode by a barcode reader. % By weight. The average particle diameter is preferably 0.1 to 0.4 μm. Average particle size is by electron microscopy.
As the binder, for example, one kind of vinyl chloride / vinyl acetate copolymer resin, epoxy resin, modified olefin resin, urethane resin, melamine resin, or a mixture thereof can be used.
The white colored layer of the coating amount after drying, it is preferable that generally are formed on aluminum foil at a 1.0g / m 2 ~4.0g / m 2 .
In order to form the white colored layer on the aluminum foil, it can be formed by a conventionally known method, for example, gravure printing, offset printing, UV coating, or the like.
PTP包装体の蓋材用包装シートは、アルミニウム箔の裏面側に、ヒートシール層を形成することができ、印刷層上に、オーバープリント(OP)層を形成することができる。
ヒートシール層は、包装シートを、底材に溶着させるための層である。ヒートシール層は従来公知のPTP包装体のヒートシール層に用いられるもので形成することができ、例えば、下記に示した底材と同一の樹脂を混合したものを主剤とする樹脂コート剤を使用し、グラビアコートなどで塗布して形成することができる。ヒートシール層のコート量は、特に限定するものはないが、単位面積当たり2g/m2〜5g/m2、好ましくは2.5g/m2〜4.0g/m2で形成することができる。
The lid packaging sheet of the PTP package can form a heat seal layer on the back side of the aluminum foil, and can form an overprint (OP) layer on the print layer.
The heat seal layer is a layer for welding the packaging sheet to the bottom material. The heat seal layer can be formed of a conventionally used PTP package heat seal layer. For example, a resin coating agent mainly composed of a mixture of the same resin as the bottom material shown below is used. It can be formed by applying with a gravure coat or the like. Coating amount of the heat seal layer is not particularly limited, per unit area 2g / m 2 ~5g / m 2 , preferably can be formed of 2.5g / m 2 ~4.0g / m 2 .
底材は、錠剤などを収納する収納凹部を有し、特に限定するものではないが、ポリ塩化ビニル、ポリエステル、ポリプロピレン、ポリエチレンなどから形成することができる。収納凹部は、熱成形などにより形成することができる。 The bottom material has a storage recess for storing a tablet or the like, and is not particularly limited, but can be formed from polyvinyl chloride, polyester, polypropylene, polyethylene, or the like. The storage recess can be formed by thermoforming or the like.
PTP包装体は、従来公知のPTP包装機を用いて作製することができ、例えば、収納凹部に錠剤などを収納した底材上に包装シートを積層してヒートシールなどで溶着した後、打抜加工において打抜刃で打抜き、適宜大きさに裁断して製造することができる。この打抜き刃は、冷間金型用合金工具鋼(SKD)などからなるものである。 A PTP package can be produced using a conventionally known PTP packaging machine. For example, a PTP package is laminated on a bottom material containing tablets in a storage recess, welded by heat sealing, and then punched. It can be manufactured by punching with a punching blade in processing and cutting to an appropriate size. This punching blade is made of alloy tool steel for cold mold (SKD) or the like.
実施例1(各種酸化チタンの評価)
表1に示すように、アルミナ・有機物処理、アルミナ・シリカ・亜鉛処理、アルミナ・シリカ・有機物処理、アルミナ処理、アルミナ・ジルコニア処理、アルミナ・シリカ処理をした各ルチル型酸化チタンを用いて、次の評価を行った。
(酸化チタンの振動摩擦による金属摩耗性評価)
100mlガラス瓶中にトルエン30gと、表面処理の異なる同径酸化チタン15gを配合し、スチールビーズ100gを加えてガラス瓶を密封し、試験用分散機にて30分間の振動分散を行った。振動分散後のガラス瓶を目視観察し、スチールビーズ(直径2mm)の摩耗によって黒味を帯びた酸化チタンは金属摩耗程度の大きいものと判断した。
Example 1 (Evaluation of various titanium oxides)
As shown in Table 1, using each rutile type titanium oxide that has been treated with alumina / organic matter, alumina / silica / zinc treatment, alumina / silica / organic treatment, alumina treatment, alumina / zirconia treatment, alumina / silica treatment, Was evaluated.
(Evaluation of metal wear by vibration friction of titanium oxide)
In a 100 ml glass bottle, 30 g of toluene and 15 g of titanium oxide having the same diameter with different surface treatments were blended, 100 g of steel beads were added, the glass bottle was sealed, and vibration dispersion was performed for 30 minutes with a test disperser. The glass bottle after the vibration dispersion was visually observed, and it was determined that the titanium oxide that was darkened by the wear of the steel beads (diameter 2 mm) had a large degree of metal wear.
(酸化チタンの平行摩擦による金属摩擦性評価)
表面処理の異なる同径酸化チタン5gと可塑剤5gを交ぜ合わせたペーストをかなきん3号に一定量を盛り、ステンレス板に500g荷重で同一摺動回数の平行往復摩擦を行い、ステンレス板面の摩耗程度を目視判定した。
(Metal friction evaluation by parallel friction of titanium oxide)
A paste consisting of 5g of titanium oxide with the same diameter and plasticizer mixed with 5g of different surface treatments is put in a certain amount in Kanakin No. 3, and a stainless steel plate is subjected to parallel reciprocating friction with the same sliding number of times with a load of 500g. The degree of wear was judged visually.
前記2条件での評価を表1に示す。最も摩耗程度の少ないのはアルミナ・シリカ処理、次いでアルミナ・ジルコニア処理の表面処理であった。 Table 1 shows the evaluation under the two conditions. The surface with the least degree of wear was the alumina / silica treatment followed by the alumina / zirconia treatment.
実施例2(インキの評価:バインダーが変性オレフィン系樹脂)
各表面処理の酸化チタン:25g、変性オレフィン系樹脂:10g、トルエン:55g、メチルエチルケトン(MEK):10gをそれぞれ130mlガラス瓶に配合し、1.8mmチタニアビーズを100g加えて試験用分散機にて各酸化チタンの分散を行い、白インキを作製した。
これらの白インキの経時安定性と硬質アルミニウム箔上での白さ(隠蔽性)の比較を行った。結果をそれぞれ、表2に示す。経時安定性は、40℃恒温槽で30日間保存してゲル化するか否かをみた。隠ぺい性は目視による。
アルミナ・シリカ処理の酸化チタンは隠蔽性が最も高い傾向にあったが、変性オレフィン系樹脂との分散によって経時ゲル化が見られた。硬質アルミ箔上での白さ(隠蔽性)と白インキとしての安定性、また前記の金属摩耗性を考慮すると、アルミナ・ジルコニア処理の酸化チタンが最適である。
Titanium oxide for each surface treatment: 25 g, modified olefin-based resin: 10 g, toluene: 55 g, methyl ethyl ketone (MEK): 10 g were each mixed in a 130 ml glass bottle, and 100 g of 1.8 mm titania beads were added to each test dispersion machine. Titanium oxide was dispersed to produce a white ink.
Comparison was made between the temporal stability of these white inks and the whiteness (hiding property) on the hard aluminum foil. The results are shown in Table 2, respectively. The stability over time was examined as to whether or not gelation occurs when stored for 30 days in a constant temperature bath at 40 ° C. Concealment is by visual inspection.
Titanium oxide treated with alumina and silica tended to have the highest concealability, but gelation with time was observed due to dispersion with the modified olefin resin. Considering the whiteness (hiding property) on the hard aluminum foil, the stability as the white ink, and the above-mentioned metal wear, the titanium oxide treated with alumina / zirconia is optimal.
バインダーが変性オレフィン系樹脂の場合、アルミナ・有機物処理のものが当社の現行品として用いられているが、それとアルミナ・ジルコニア処理の酸化チタンによる白インキで、酸化チタンの含有量と白さ(隠蔽性)の比較を行った。結果を表3に示す。
現行のアルミナ・有機物処理とアルミナ・ジルコニア処理の酸化チタンで作製した白インキをザーンカップ#3で各15秒に溶剤希釈し、175線/inのグラビアベタ版で硬質アルミニウム箔艶面への展色を行った。アルミナ・ジルコニア処理の酸化チタンで作製した白インキは、現行のアルミナ・有機物処理による酸化チタンの白インキと比較して白さ(隠蔽性)が高く、表3のアルミナ・ジルコニア2で示した白着色層中の酸化チタン含有量を半減しても、現行品と同程度の白さ(隠蔽性)が得られた。 White ink made with the current alumina / organic treatment and alumina / zirconia-treated titanium oxide was diluted with Zahn Cup # 3 for 15 seconds each and spread on a hard aluminum foil glossy surface with a gravure solid plate of 175 lines / in. Made the color. The white ink made of alumina / zirconia-treated titanium oxide has higher whiteness (hiding property) than the white oxide / titanium oxide-treated white ink. Even when the titanium oxide content in the colored layer was halved, whiteness (hiding property) comparable to the current product was obtained.
実施例3(インキの評価:バインダーが塩化ビニル・酢酸ビニル系共重合樹脂)
バインダーが塩化ビニル・酢酸ビニル系共重合樹脂の場合、アルミナ処理のものが当社の現行品として用いられている。
アルミナ処理とアルミナ・ジルコニア処理の各酸化チタン:20g、塩化ビニル・酢酸ビニル系共重合樹脂:15g、トルエン:15g、メチルエチルケトン(MEK):50gをそれぞれ130mlガラス瓶に配合し、1.8mmチタニアビーズを100g加えて試験用分散機にて各酸化チタンの分散を行い、白インキを作製した。
これらの白インキの経時安定性と硬質アルミニウム箔上での白さ(隠蔽性)の比較を行った結果、経時安定性はいずれも良好で、白さ(隠蔽性)はアルミナ・ジルコニア処理のほうが高かった。
Example 3 (Evaluation of ink: Binder is vinyl chloride / vinyl acetate copolymer resin)
When the binder is a vinyl chloride / vinyl acetate copolymer resin, an alumina-treated one is used as our current product.
Titanium oxide of alumina treatment and alumina / zirconia treatment: 20 g, vinyl chloride / vinyl acetate copolymer resin: 15 g, toluene: 15 g, methyl ethyl ketone (MEK): 50 g are each compounded in a 130 ml glass bottle, and 1.8 mm titania beads are added. 100 g was added and each titanium oxide was dispersed with a test disperser to prepare a white ink.
As a result of comparing the stability over time of these white inks with the whiteness (hiding property) on the hard aluminum foil, the stability over time is better, and the whiteness (hiding property) is better with the alumina / zirconia treatment. it was high.
アルミナ処理とアルミナ・ジルコニア処理の酸化チタンによる白インキで、酸化チタンの含有量と白さ(隠蔽性)の比較を行った。結果を表4に示す。
現行のアルミナ処理とアルミナ・ジルコニア処理の酸化チタンで作製した白インキをザーンカップ#3で各15秒に溶剤希釈し、175線/inのグラビアベタ版で硬質アルミ箔艶面への展色を行った。アルミナ・ジルコニア処理の酸化チタンで作製した白インキは、現行のアルミナ処理による酸化チタンの白インキと比較して白さ(隠蔽性)が高く、表4で示した白着色層中の酸化チタン含有量を半減しても、現行品と同程度の白さ(隠蔽性)が得られた。 White ink made of titanium oxide of current alumina treatment and alumina / zirconia treatment is diluted with solvent in Zahn cup # 3 for 15 seconds each, and color development on hard aluminum foil gloss surface with gravure solid plate of 175 lines / in went. White ink made with alumina / zirconia-treated titanium oxide has higher whiteness (hiding property) than titanium oxide-treated white ink, and contains titanium oxide in the white colored layer shown in Table 4. Even when the amount was halved, whiteness (concealment) comparable to the current product was obtained.
実施例4(インキの評価:バインダーがエポキシ樹脂)
バインダーがエポキシ樹脂の場合、アルミナ・シリカ・有機物処理のものが当社の現行品として用いられている。
アルミナ・シリカ・有機物処理とアルミナ・ジルコニア処理の各酸化チタン:30g、エポキシ樹脂:15g、トルエン:25g、プロピレングリコールモノメチルエーテル(PM):10gをそれぞれ130mlガラス瓶に配合し、1.8mmチタニアビーズを100g加えて試験用分散機にて各酸化チタンの分散を行い、白インキを作製した。
これらの白インキの経時安定性と硬質アルミニウム箔上での白さ(隠蔽性)の比較を行った結果、経時安定性はいずれも良好で、白さ(隠蔽性)はアルミナ・ジルコニア処理のほうが高かった。
Example 4 (Evaluation of ink: binder is epoxy resin)
When the binder is an epoxy resin, alumina, silica, and organic-treated ones are used as our current products.
Alumina / silica / organic treatment and alumina / zirconia treated titanium oxide: 30 g, epoxy resin: 15 g, toluene: 25 g, propylene glycol monomethyl ether (PM): 10 g were each compounded in a 130 ml glass bottle, and 1.8 mm titania beads were added. 100 g was added and each titanium oxide was dispersed with a test disperser to prepare a white ink.
As a result of comparing the stability over time of these white inks with the whiteness (hiding property) on the hard aluminum foil, the stability over time is better, and the whiteness (hiding property) is better with the alumina / zirconia treatment. it was high.
アルミナ・シリカ・有機物処理とアルミナ・ジルコニア処理の酸化チタンによる白インキで、酸化チタンの含有量と白さ(隠蔽性)の比較を行った。結果を表5に示す。
現行のアルミナ・シリカ・有機物処理とアルミナ・ジルコニア処理の酸化チタンで作製した白インキをザーンカップ#3で各15秒に溶剤希釈し、175線/inのグラビアベタ版で硬質アルミ箔艶面への展色を行った。アルミナ・ジルコニア処理の酸化チタンで作製した白インキは、現行のアルミナ・シリカ・有機物処理による酸化チタンの白インキと比較して白さ(隠蔽性)が高く、表5で示した白着色層中の酸化チタン含有量を半減しても、現行品と同程度の白さ(隠蔽性)が得られた。
White ink made with the current alumina / silica / organic treatment and alumina / zirconia-treated titanium oxide is diluted with Zahn Cup # 3 for 15 seconds each, and the glossy surface of hard aluminum foil is obtained with a gravure solid plate of 175 lines / in. The exhibition color was performed. White ink made of alumina / zirconia-treated titanium oxide has higher whiteness (hiding property) than the white ink of titanium oxide treated with alumina / silica / organic matter. Even when the content of titanium oxide was halved, whiteness (hiding property) comparable to the current product was obtained.
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