CN107614260A - 泡罩包装用层叠体、及使用有该泡罩包装用层叠体的泡罩包装 - Google Patents
泡罩包装用层叠体、及使用有该泡罩包装用层叠体的泡罩包装 Download PDFInfo
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- CN107614260A CN107614260A CN201680033636.3A CN201680033636A CN107614260A CN 107614260 A CN107614260 A CN 107614260A CN 201680033636 A CN201680033636 A CN 201680033636A CN 107614260 A CN107614260 A CN 107614260A
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Classifications
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- B32—LAYERED PRODUCTS
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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Abstract
本发明涉及一种泡罩包装用层叠体、及使用有该泡罩包装用层叠体的泡罩包装。本发明的课题在于，提供一种泡罩包装用层叠体，其在泡罩包装用层叠体上成型圆顶状的凹槽时可赋予充分的成型性，而且可抑制水分、有机气体及无机气体由层叠体的端面部经由加强层入侵至吸收层而使吸收层失活。另外，本发明的课题还在于，提供一种使用有该泡罩包装用层叠体的泡罩包装。本发明涉及依次包含基材层1、铝箔层2、加强层3、阻隔膜层4、及吸收层5的泡罩包装用层叠体。
Description
技术领域
本发明涉及一种泡罩包装用层叠体、及使用有该泡罩包装用层叠体的泡罩包装。
背景技术
粉状的制剂被封入薄的纸袋或薄膜制袋等中，而片剂或胶囊剂等制剂被封入称作PTP(压出式包装)的泡罩包装中。通过用手指按压封入至PTP中的制剂，可以弄破片状的盖材，然后取出制剂。此外，还存在制剂被封入将成型有收纳制剂的凹槽部的2个阻隔性层叠体面对面地密封而成的形状的泡罩包装中的情况。在该方案的情况下，将泡罩包装的端部切下来开封，或在2个层叠体之间进行剥离来开封，因此，就连粉状及液体状的制剂也可以使用。
有时因制剂吸收水分而药效成分变质。因此，以往在封入泡罩包装的外包装袋内封入硅胶等干燥剂。然而，在外包装袋内投入干燥剂的操作花费功夫，另外，还有将其误饮或误食的担心。另外，还有如下问题：外包装袋开封后，无法将泡罩包装内保持在低湿度，会推进制剂的劣化。进而，根据制剂，存在容易氧化分解、产生特有的臭气等情况，因此也有想要吸收泡罩包装内的氧气、臭气等气体的强烈期望。
对此，专利文献1中公开了通过在泡罩包装的内部形成具有吸收剂的吸收层来提高制剂的长期稳定性的技术。此处，首先，在作为阻隔层的基材与吸收层的层叠体上形成圆顶状的凹槽部分。然后，将作为片剂的制剂放入该凹槽部分，用盖材将其密封。根据该技术，认为即使不将干燥剂等一同捆在外包装袋中，也能维持干燥状态、防止氧化、及有效去除臭气。
另外，在制剂中，也有不耐受紫外线的制剂，若包装容器为透明的，则有药效成分劣化的担心。对此，例如专利文献2中公开了不仅形成泡罩包装的里侧的盖材、而且在表侧的泡罩包装用层叠体上也形成铝箔层的技术、所谓的铝泡罩包装。根据该技术，虽然因在泡罩包装上形成铝箔层而无法看到制剂，但能阻挡紫外线、进而提高阻隔性。
对于单纯组合上述2个技术的方式，在泡罩包装用层叠体上成型为圆顶状的凹槽时，会发生如下成型上的问题：圆顶的顶部破裂，或在下摆的部分或凸缘部分产生龟裂。而在专利文献2中，为了对此进行处理，公开了在铝箔层和吸收层之间层叠使用了特定聚合物的具有刚性的加强层，从而依次具有基材层/铝箔层/加强层/吸收层的泡罩包装用层叠体。
现有技术文献
专利文献
专利文献1：国际公开第2006/115264号
专利文献2：国际公开第2012/029323号
发明内容
发明要解决的问题
在专利文献2的泡罩包装用层叠体中，通过设置具有刚性的加强层，可提高层叠体整体的强度，从而减少成型不良。然而，本发明人等发现，在专利文献2记载的层叠体的情况下，会产生如下问题：在使用有该层叠体的泡罩包装中收纳制剂等内容物并长期保存时，水分、有机气体及无机气体由层叠体的端面部经由加强层入侵至吸收层而使吸收层失活。
因此，本发明的目的在于，提供一种泡罩包装用层叠体，其在泡罩包装用层叠体上成型圆顶状的凹槽时可赋予充分的成型性，而且可抑制水分、有机气体及无机气体由层叠体的端面部经由加强层入侵至吸收层而使吸收层失活。另外，本发明的目的还在于，提供一种使用有该泡罩包装用层叠体的泡罩包装。
用于解决问题的方案
本发明人等发现，通过以下的方案能够解决上述问题。
[1]一种泡罩包装用层叠体，其依次包含基材层、铝箔层、加强层、阻隔膜层、及吸收层。
[2]如[1]所述的泡罩包装用层叠体，其中，前述阻隔膜层的水蒸气透过率为20g/(m2·day)以下。
[3]如[1]或[2]所述的泡罩包装用层叠体，其中，前述阻隔膜层包含二氧化硅蒸镀薄膜、铝蒸镀薄膜、氧化铝蒸镀薄膜、二氧化硅·氧化铝蒸镀薄膜、偏氯乙烯涂膜、聚偏氟乙烯涂膜、及它们的组合形成的薄膜。
[4]如[1]～[3]中的任一项所述的泡罩包装用层叠体，其中，前述基材层包含选自由聚乙烯系树脂、聚氯乙烯、聚偏氯乙烯、聚氯三氟乙烯、聚丙烯系树脂、饱和聚酯、聚酰胺及它们的混合物组成的组中的树脂。
[5]如[1]～[4]中的任一项所述的泡罩包装用层叠体，其中，前述加强层包含选自由高密度聚乙烯、聚氯乙烯、聚丙烯系树脂、聚对苯二甲酸乙二醇酯、聚酰胺及它们的混合物组成的组中的树脂。
[6]如[1]～[5]中的任一项所述的泡罩包装用层叠体，其中，前述吸收层依次包含所述基材层侧的外表皮层、具有吸收剂及粘结剂树脂的吸收剂保持层、以及内表皮层。
[7]一种泡罩包装，其包含[1]～[6]中的任一项所述的层叠体、以及盖材，所述盖材具有与前述铝箔层不同的铝箔层及树脂层，前述层叠体的吸收层与前述盖材的树脂层至少部分粘接，并且在前述层叠体上形成凹槽部而能够在前述层叠体与前述盖材之间收纳内容物。
[8]一种泡罩包装，其对于[1]～[6]中的任一项所述的2个层叠体，使吸收层面对面地至少部分粘接，并且在前述2个层叠体上形成凹槽部而能够在前述凹槽部收纳内容物。
[9]一种泡罩包装包装体，其具有[7]或[8]所述的泡罩包装、收纳于前述凹槽部的内容物。
发明的效果
根据本发明，通过在加强层与吸收层之间设置阻隔膜层，可抑制水分、有机气体及无机气体由层叠体的端面部经由加强层入侵至吸收层而使吸收层失活。通过利用使用有这种层叠体的泡罩包装，可以在长期稳定的状态下保存内容物。
附图说明
图1是本发明的泡罩包装的概略图。
图2是表示本发明的泡罩包装的其它例子的概略图。
图3是本发明的泡罩包装的层结构的概略图。
图4是表示吸收速度试验结果的图。
具体实施方式
＜泡罩包装用层叠体＞
本发明的泡罩包装用层叠体依次包含基材层、铝箔层、加强层、阻隔膜层、及吸收层。另外，在基材层、铝箔层、加强层、阻隔膜层、及吸收层中的任意两层之间，可以具有粘接层。例如，如图1所示，本发明的泡罩包装用层叠体10具有基材层1、铝箔层2、加强层3、阻隔膜层4及吸收层5。优选的是，本发明的泡罩包装用的层叠体10依次包含最外层的基材层1、铝箔层2、加强层3、阻隔膜层4及与盖材6粘接的吸收层5，或依次由最外层的基材层1、铝箔层2、加强层3、阻隔膜层4及与盖材6粘接的吸收层5构成。
需要说明的是，在本说明书中，所谓“由A层及B层构成的层叠体”，本质上意味着仅包含A层和B层的层叠体，但还意味着除了A层及B层以外，在可得到本发明的有益的效果的范围内或在不失去有益的效果的范围内，也可以包含其它层。例如，即使在A层和B层之间包含锚涂层等，有时也表达为“由A层及B层构成的层叠体”。
作为使基材层、铝箔层、加强层、阻隔膜层、及吸收层中的至少两层粘贴的方法，可举出干式层压法、夹心层压法等。干式层压法是如下所述的方法：涂布粘接剂并使其干燥后，进行加压，使粘接剂固化，从而使其粘贴。另外，夹心层压法是如下所述的方法：在基材与所粘贴侧的薄膜之间，挤出熔融了的构成各层的树脂或粘接用树脂并使其粘贴。
在泡罩包装用层叠体上形成用于装入制剂等内容物的凹槽部。作为将凹槽部成型时的成型方法，可以举出：平板式气动成型法、柱塞助推压空成型法、鼓式真空成型法、柱塞成型法等。其中，为了形成凹槽部，优选使用了粘均分子量为100万以上的超高分子量聚乙烯树脂制的顶端部为圆的圆柱状的棒(柱塞材料)的柱塞成型法。
对于本发明的泡罩包装用层叠体而言，图3中，通过在加强层3与吸收层5之间层叠阻隔膜层4，可防止如箭头所示从泡罩包装用层叠体10的端面部经由加强层3入侵的水分、有机气体及无机气体向吸收层5的入侵，抑制吸收层5失活。
(基材层)
基材层可以成为泡罩包装用层叠体的最外层。作为用于基材层的树脂，只要是对泡罩包装用层叠体赋予适度的阻隔性及成型性的树脂即可，没有特别限制。例如，可举出：聚乙烯系树脂、聚氯乙烯、聚偏氯乙烯、聚氯三氟乙烯、聚丙烯系树脂、饱和聚酯、聚酰胺(例如：尼龙、尼龙6、尼龙6,6、尼龙MXD6)等、以及它们的混合物。优选防止来自外部的水分浸入、防湿性优异的物质为宜，特别是可举出聚丙烯系树脂、聚酰胺及饱和聚酯。
需要说明的是，在本说明书中，聚乙烯系树脂为聚合物的主链中包含30mol％以上、40mol％以上、50mol％以上、60mol％以上、70mol％以上、或80mol％以上的亚乙基的重复单元的树脂，例如，选自由低密度聚乙烯(LDPE)、直链状低密度聚乙烯(LLDPE)、中密度聚乙烯(MDPE)、高密度聚乙烯(HDPE)、乙烯-丙烯酸共聚物(EAA)、乙烯-甲基丙烯酸共聚物(EMAA)、乙烯-丙烯酸乙酯共聚物(EEA)、乙烯-丙烯酸甲酯共聚物(EMA)、乙烯-乙酸乙烯酯共聚物(EVA)、羧酸改性聚乙烯、羧酸改性乙烯-乙酸乙烯酯共聚物、及它们的衍生物、以及它们的混合物组成的组。
在本说明书中，聚丙烯系树脂是聚合物的主链中包含30mol％以上、40mol％以上、50mol％以上、60mol％以上、70mol％以上、或80mol％以上的亚丙基的重复单元的树脂，例如，可举出：聚丙烯(PP)均聚物、无规聚丙烯(无规PP)、嵌段聚丙烯(嵌段PP)、氯化聚丙烯、羧酸改性聚丙烯、及它们的衍生物、以及它们的混合物。
基材层的厚度可以为10μm以上、20μm以上、或30μm以上，另外可以为300μm以下、200μm以下、100μm以下、或50μm以下。
(铝箔层)
铝箔层是为了赋予水分阻隔性及气体阻隔性而使用的。其可以是纯铝系的铝箔，也可以是铝合金系的铝箔。为了赋予泡罩包装用层叠体适度的成型性及弹性，铝箔层的厚度可以为7μm以上、10μm以上、或20μm以上，另外可以为60μm以下、50μm以下、或40μm以下。
(加强层)
加强层是为了提高泡罩包装用层叠体的成型性及弹性而使用的。作为用于加强层的树脂，例如，可举出：高密度聚乙烯、聚氯乙烯、聚丙烯系树脂、聚对苯二甲酸乙二醇酯、聚酰胺(例如：尼龙、尼龙6、尼龙6,6、尼龙MXD6)等、以及它们的混合物。加强层的厚度可以为10μm以上、15μm以上、25μm以上、30μm以上、40μm以上、或50μm以上，另外可以为100μm以下、80μm以下、60μm以下、或50μm以下。
(阻隔膜层)
阻隔膜层是为了抑制入侵的水分、有机气体及无机气体从层叠体端面部经由加强层到达吸收层而设置的。作为用作阻隔膜层的薄膜，例如，从防止入侵的水分的观点出发，优选水蒸气透过率为20g/(m2·day)以下、15g/(m2·day)以下、10g/(m2·day)以下、7g/(m2·day)以下、5g/(m2·day)以下、3g/(m2·day)以下或1g/(m2·day)以下的薄膜。
具体而言，作为可用作阻隔膜层的薄膜，可以举出：二氧化硅蒸镀薄膜、铝蒸镀薄膜、氧化铝蒸镀薄膜、二氧化硅·氧化铝蒸镀薄膜、偏氯乙烯涂膜、聚偏氟乙烯涂膜等、及它们的组合。更具体而言，作为用作阻隔膜层的薄膜，可举出：铝蒸镀聚酯薄膜、铝蒸镀聚丙烯薄膜、氧化铝蒸镀聚酯薄膜、二氧化硅蒸镀薄膜、二氧化硅·氧化铝蒸镀薄膜、二氧化硅·氧化铝蒸镀尼龙薄膜、偏氯乙烯涂膜、聚偏氟乙烯涂膜及它们的组合。
阻隔膜层的厚度可以为7μm以上、10μm以上、15μm以上、或25μm以上，另外可以为60μm以下、50μm以下、40μm以下、30μm以下、或20μm以下。
(吸收层)
吸收层是具有吸收性的功能的层，可以通过该层来提高内容物的长期稳定性。吸收层可以是包含吸收剂及粘结剂树脂的吸收剂保持层单层，优选依次包含外表皮层、包含吸收剂及粘结剂树脂的吸收剂保持层、以及内表皮层。在此情况下，从防止吸收剂保持层中所含有的吸收剂在使用中脱离、而且容易制造吸收层方面出发，用上下的表皮层制成夹层来使用。
外表皮层为用于与泡罩包装的收纳内容物侧处于相对侧(外侧)的层，内表皮层为用于收纳内容物侧(内侧)的层。如图1所示，在本发明的泡罩包装用层叠体10中，吸收层5可以与基材层1、铝箔层2、加强层3及阻隔膜层4层叠来使用。另外例如，如图3所示，吸收层5具有外表皮层5a、吸收剂保持层5b、及内表皮层5c。
吸收剂保持层单层的吸收层可以通过吹胀法、T模法等挤出成型或注射成型来制造。另外，包含外表皮层、吸收剂保持层、及内表皮层的3层结构的吸收层可以通过多层吹胀法来制造。其是利用多个挤出机同时将多个树脂共挤出为管状并向其中输送空气使其膨胀来制造多层薄膜的方法。另外，也可以通过吹胀法、T模法等挤出成型或注射成型来使吸收剂保持层形成薄膜状或片状，通过公知的方法将外表皮层及内表皮层薄膜化后，夹住吸收剂保持层并进行层压，由此制造3层结构的吸收层。
从得到适度的成型性及弹性的观点出发，吸收层的厚度可以为50μm以上、60μm以上、或70μm以上，且可以为200μm以下、100μm以下、90μm以下、或80μm以下。
＜内表皮层及外表皮层＞
内表皮层及外表皮层主要包含树脂，可以包含比吸收剂保持层少的量的吸收剂，但考虑到泡罩包装的制造中及使用中吸收剂脱离的可能性、及制造吸收层的容易性，优选不包含吸收剂。作为可用于内表皮层及外表皮层的树脂，可举出例如：聚乙烯系树脂、聚丙烯系树脂、聚甲基戊烯、饱和聚酯、聚氯乙烯、聚苯乙烯、聚碳酸酯、聚酰胺、热塑性弹性体等以及它们的混合物。
从得到适度的成型性及弹性的观点出发，内表皮层及外表皮层的厚度可以为5μm以上、10μm以上、或20μm以上，且可以为50μm以下、40μm以下、30μm以下、20μm以下、或15μm以下。
＜吸收剂保持层＞
吸收剂保持层具有在粘结剂树脂中分散有吸收剂的结构。吸收剂保持层作为吸收泡罩包装内的水分、有机气体及无机气体的层来起作用。
作为可以用于吸收剂保持层的吸收剂，可以举出无机吸收剂，例如：氧化钙、氯化钙、硫酸钙、硫酸镁、硫酸钠等化学吸附剂；及氧化铝、生石灰、硅胶、无机分子筛等物理吸附剂。作为无机分子筛的例子，没有限制，可以举出：铝硅酸盐矿物、粘土、多孔玻璃、微细孔性活性炭、沸石、活性炭、或具有能使水等小分子扩散的开口结构的化合物。这样的无机吸收剂为了即使在低湿度区域也能够获得高的吸收性从而吸收泡罩包装内部少量含有的湿气，特别优选使用即使在这样的相对湿度低的环境下也能够发挥高的吸收性的吸收剂。
作为沸石，可以使用天然沸石、人工沸石、合成沸石等。沸石为根据分子的大小的不同而将物质分离中使用的多孔质的粒状物质，是具有均匀的细孔的结构，由于吸收进入到细孔的空腔中的小的分子而具有一种筛子的作用，因此可以吸收水(蒸气、水蒸气)、有机气体、无机气体等。作为合成沸石的一例，有分子筛，其中，特别是可以使用细孔(吸收口)直径为0.3nm～1nm的分子筛。通常将孔径为0.3nm、0.4nm、0.5nm、1nm的分子筛分别称为分子筛3A、分子筛4A、分子筛5A、分子筛13X。分子筛的平均粒径(通过激光衍射·散射法求出的粒度分布中累计值为50％的粒径)可以采用例如10μm左右。在本发明中，可以按照吸收的目标物、内容物的性质等适当分开使用这些沸石。
另外，特别是在吸收有机气体的情况下，优选使用疏水性沸石。所谓疏水性沸石是指，对沸石的晶体骨架内的铝原子进行脱铝处理而使其减少，从而提高硅铝比，制成了所谓高硅沸石的总称。疏水性沸石为失去对水等极性物质的亲和性，更强地吸收非极性物质的沸石，变得更容易吸收有机气体等。作为疏水性沸石的一例的疏水性分子筛，可以使用孔径0.6～0.9nm的分子筛，可举出：Abscents1000、Abscents2000、Abscents3000(以上为UNIONSHOWA K.K.制)等。孔径可以通过基于X射线衍射法的结构解析进行确认。另外，疏水性沸石的平均粒径(通过激光衍射·散射法求出的粒度分布中累计值为50％的粒径)可以采用例如3～5μm的。
在吸收剂为氧吸收剂的情况下，可以使用无机系的氧吸收剂，例如：氧化铈、氧化钛、铁粉等，也可以使用有机系的氧吸收剂，例如：多元酚化合物、抗坏血酸等。作为多元酚化合物，可举出：苯酚、邻苯二酚、没食子酸、间苯二酚、对苯二酚、苯三醇、甲酚、单宁酸等。
对于吸收剂，从吸收能力的观点出发，可以在吸收剂保持层中以相对于吸收剂保持层的重量为大于0重量％、10重量％以上、20重量％以上、30重量％以上、40重量％以上、或50重量％以上的范围含有，另外，从对粘结剂树脂中的分散性及成型性的观点出发，可以在吸收剂保持层中以70重量％以下、60重量％以下、50重量％以下、或40重量％以下的范围含有。
作为可以用于吸收剂保持层的粘结剂树脂，可举出例如：聚乙烯系树脂、聚丙烯系树脂、饱和聚酯或不饱和聚酯、离聚物、聚氯乙烯(PVC)、聚苯乙烯、及它们的衍生物、以及它们的混合物。
从吸收能力、成型性、及弹性的观点出发，吸收剂保持层的厚度可以为10μm以上、20μm以上、30μm以上、或50μm以上，且可以为500μm以下、300μm以下、200μm以下、150μm以下、或100μm以下。
(粘接层)
对于本发明的泡罩包装用层叠体，在基材层、铝箔层、加强层、及吸收层中的任意两层之间，可以具有粘接层。作为可以用于该粘接层的粘接剂，在通过干式层压法进行粘接的情况下，可举出：氨基甲酸酯系粘接剂、烯烃系树脂粘接剂、丁基橡胶系粘接剂、丙烯酸树脂系粘接剂、聚酯树脂系粘接剂、环氧树脂系粘接剂、有机硅树脂系粘接剂等，在通过夹心层压法进行粘接的情况下，可举出聚乙烯系树脂等。
(泡罩包装、及泡罩包装包装体)
本发明的泡罩包装具有上述的泡罩包装用层叠体、及盖材。泡罩包装用层叠体的吸收层与盖材至少部分粘接。在泡罩包装用层叠体上进行了用于收纳制剂等内容物的凹槽部的成型后，将内容物容纳于凹槽部中，并粘接盖材，从而能够制作泡罩包装的凹槽部中收纳有内容物的泡罩包装包装体。
盖材包含例如树脂层和金属层。作为该树脂层，可以使用热塑性树脂。另外，作为金属层，可以使用纯铝箔、铝合金箔等铝箔。优选的是，盖材为铝箔上涂布有热塑性树脂层的形态，从提高粘接性的观点出发，盖材的热塑性树脂层与泡罩包装用层叠体的进行粘接的层(吸收层)可以包含相同树脂。另外，也可以制成在铝箔上涂布聚烯烃系聚合物合金等易剥离性树脂、或者层叠易剥离膜的形态。在此情况下，可以通过在泡罩包装与盖材的粘接界面使其剥离来取出内容物。
作为本发明的泡罩包装的其它方式，对于选自上述泡罩包装用层叠体的2个层叠体，使吸收层面对面地至少部分粘接。在2个泡罩包装用层叠体双方上进行了用于收纳内容物的凹槽部的成型后，将内容物容纳于凹槽部中，使2个泡罩包装用层叠体的吸收层彼此粘接，从而能够制作泡罩包装的凹槽部中收纳有内容物的泡罩包装包装体。
作为本发明的泡罩包装的内容物，只要是因与外界气体的接触而会劣化的物质，就没有限制，除了制剂以外，还可以举出：食品、化妆品、医疗设备、电子部件等。另外，作为制剂，除了医药品制剂以外，还包括清洗剂、农药等。
图1为泡罩包装100的概略图。此处，在依次层叠基材层1、铝箔层2、加强层3、阻隔膜层4、及吸收层5而成的泡罩包装用层叠体10上粘接有盖材6，内容物300被包封在形成于层叠体10上的圆顶状的凹槽部中。虽未图示，但在基材薄膜和吸收薄膜之间存在粘接层。
图2为其他方式的泡罩包装200的概略图。2个泡罩包装用层叠体10的吸收层彼此粘接，内容物300被包封在形成于层叠体10上的凹槽部中。
图3为本发明的泡罩包装100的层结构的概略图。在该图中，示出泡罩包装100的未形成凹槽部的端部，在依次层叠基材层1、铝箔层2、加强层3、阻隔膜层4、及吸收层5而成的泡罩包装用层叠体10上粘接有盖材6。吸收层5由外表皮层5a、吸收剂保持层5b及内表皮层5c构成，另外，盖材6由热塑性树脂层6a及金属层6b构成。
实施例
(样品制作)
按以下的表1的构成，仅改变阻隔膜层来制作实施例1及2、以及比较例1的泡罩包装用层叠体。实施例1中使用铝蒸镀PET薄膜(VM-PET1310、Toray Advanced Film Co.,Ltd.)，实施例2中使用氧化铝蒸镀PET薄膜(GX-P-F、凸版印刷株式会社)。
(吸收层的制作)
作为内外表皮层用的材料，准备直链状低密度聚乙烯(LLDPE)(Evolue SP2520、Prime Polymer Co.,Ltd.)的树脂粒料。作为吸收剂保持层用的材料，将低密度聚乙烯(LDPE)(Petrothene 202、Tosoh Corporation)和作为水分吸收剂的沸石(分子筛4A、UNIONSHOWAK.K.)装入混炼挤出机中，在将树脂一边加热熔融一边进行混炼后，用挤出机将其挤出并冷却，由此得到吸收剂保持层用树脂粒料。吸收剂保持层用树脂粒料中的沸石的含量设为该粒料重量的46质量％。然后，使用内外表皮层用树脂粒料和吸收剂保持层用树脂粒料，通过利用空冷方式吹胀成型机的共挤出成型以使成为吸收层的薄膜成膜。在树脂温度为170℃、牵引速度为10m/分钟的条件下，利用三层吹胀成型机(TUL-600R、Placo Co.,Ltd.)来进行吹胀成型。
(层叠体的制造)
作为基材层使用聚酰胺薄膜(尼龙)、作为加强层使用聚氯乙烯树脂(PVC、SUMILITE(商标)VSS-6701、Sumitomo Bakelite Co.,Ltd.)，使基材层、铝箔层及加强层依次全部通过干式层压法层叠。此时，作为粘接剂，使用以9：1的重量比分别包含主剂(Takelac(商标)XA1151、三井化学株式会社)、固化剂(Takenate(商标)A12、三井化学株式会社)的氨基甲酸酯系粘接剂。需要说明的是，在各层间的粘接剂的涂敷量为0.8g/m2下进行。层叠后，为了使粘接剂固化，在40℃的环境下保存7天来进行熟化。
依次地在实施例1及2中，在加强层上借助粘接层对阻隔膜和吸收层进行夹心层压，在比较例1中，在加强层上借助粘接层对吸收层进行夹心层压，由此得到泡罩包装用层叠体。通过使用作为粘接用树脂的低密度聚乙烯(型号：Suntec L1850K、Asahi KaseiChemicals Corporation制造)，在树脂温度为300℃、挤出树脂厚度为15μm、牵引速度为30～45m/分钟的条件下，使用夹心层压机(TP45.45、Placo Co.,Ltd.)来进行夹心层压。
〈评价：吸收速度试验〉
(泡罩包装用层叠体与盖材的粘贴)
进行上述得到的泡罩包装用层叠体与密封用层叠体的粘贴。对于密封用层叠体，通过将PET(厚度12μm)、铝箔(9μm)及直链状低密度聚乙烯(LLDPE)依次进行干式层压而得到密封用层叠体。将上述泡罩包装用层叠体放置于下辊、且将上述密封用层叠体放置于上辊，在上热辊为160℃、下热辊为170℃、线速度为0.5m/分钟、辊压为0.1MPa的条件下，使用热层压机(MRK-350K、MCK Co.,Ltd.)重复进行3次热层压，由此使层叠体的吸收层与密封用层叠体的LLDPE层粘接。由此得到使泡罩包装用层叠体与密封用层叠体粘贴而成的试验用层叠体。需要说明的是，在本试验中，目的是测定自泡罩包装用层叠体的端面的吸收速度，因此，在泡罩包装用层叠体上未成型凹槽部，使泡罩包装用层叠体与密封用层叠体整个面均匀地粘贴。
(吸收速度试验)
将上述试验用层叠体裁切为150mm×60mm的大小，使泡罩包装用层叠体的吸收层未失活的端面露出。迅速测定裁切好的试验用层叠体的重量，得到初始值。然后，将上述裁切好的试验用层叠体保存于40℃、75％RH的环境下的恒温恒湿槽中。每隔一段时间，将上述裁切好的试验用层叠体装入装有干燥剂30g的铝袋中，并将铝袋密闭密封。将铝袋在23℃、50％RH的环境下进行老化3小时后，将裁切好的试验用层叠体从铝袋中取出，测定其重量。通过从每隔一段时间的重量测定值中减去初始值来求出吸收量(mg/片)。将它们的结果示于表1及图4。
如由表1及图4的结果可知，相对于未设置阻隔膜层的比较例1，可知在加强层与吸收层之间设置有阻隔膜层的实施例1及2中，试验用层叠体的吸收量得到抑制。
(阻隔膜层的水蒸气透过率)
对于各种阻隔膜层的水蒸气透过率，在40℃、90％RH的试验条件下，使用透湿率测定装置(PERMATRAN-W398MA、MOCON Co.,Ltd.制造)进行测定。将它们的结果示于表1。
[表1]
如由表1及图4可知，发现阻隔膜层的水蒸气透过率与试验用层叠体的吸收量之间存在相关性，可知水蒸气透过率低的阻隔膜层是合适的。
附图标记说明
100、200 泡罩包装
300 内容物
10 泡罩包装用层叠体
1 基材层
2 铝箔层
3 加强层
4 阻隔膜层
5 吸收层
6 盖材
5a 外表皮层
5b 吸收剂保持层
5c 内表皮层
6a 热塑性树脂层
6b 金属层
Claims (9)
1.一种泡罩包装用层叠体，其依次包含基材层、铝箔层、加强层、阻隔膜层、及吸收层。
2.根据权利要求1所述的泡罩包装用层叠体，其中，所述阻隔膜层的水蒸气透过率为20g/(m2·day)以下。
3.根据权利要求1或2所述的泡罩包装用层叠体，其中，所述阻隔膜层包含二氧化硅蒸镀薄膜、铝蒸镀薄膜、氧化铝蒸镀薄膜、二氧化硅·氧化铝蒸镀薄膜、偏氯乙烯涂膜、聚偏氟乙烯涂膜、及它们的组合形成的薄膜。
4.根据权利要求1～3中的任一项所述的泡罩包装用层叠体，其中，所述基材层包含选自由聚乙烯系树脂、聚氯乙烯、聚偏氯乙烯、聚氯三氟乙烯、聚丙烯系树脂、饱和聚酯、聚酰胺及它们的混合物组成的组中的树脂。
5.根据权利要求1～4中的任一项所述的泡罩包装用层叠体，其中，所述加强层包含选自由高密度聚乙烯、聚氯乙烯、聚丙烯系树脂、聚对苯二甲酸乙二醇酯、聚酰胺及它们的混合物组成的组中的树脂。
6.根据权利要求1～5中的任一项所述的泡罩包装用层叠体，其中，所述吸收层依次包含所述基材层侧的外表皮层、具有吸收剂及粘结剂树脂的吸收剂保持层、以及内表皮层。
7.一种泡罩包装，其包含权利要求1～6中的任一项所述的层叠体、以及盖材，所述盖材具有与所述铝箔层不同的铝箔层及树脂层，所述层叠体的吸收层与所述盖材的树脂层至少部分粘接，并且在所述层叠体上形成凹槽部而能够在所述层叠体与所述盖材之间收纳内容物。
8.一种泡罩包装，其对于权利要求1～6中的任一项所述的2个层叠体，使吸收层面对面地至少部分粘接，并且在所述2个层叠体上形成凹槽部而能够在所述凹槽部收纳内容物。
9.一种泡罩包装包装体，其具有权利要求7或8所述的泡罩包装、收纳于所述凹槽部的内容物。
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| PCT/JP2016/068177 WO2016204293A1 (ja) | 2015-06-18 | 2016-06-17 | ブリスターパック用積層体、及びそれを用いたブリスターパック |
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| CN110901199A (zh) * | 2019-11-12 | 2020-03-24 | 厦门富锦塑胶工业有限公司 | 一种可追溯的高阻隔农药包装膜、由其构成的包装袋及其制备工艺 |
| CN113400743A (zh) * | 2020-03-16 | 2021-09-17 | 株式会社Uacj制箔 | 铝层叠体、包装材料及泡罩包装体 |
| CN113784835A (zh) * | 2019-05-10 | 2021-12-10 | 共同印刷株式会社 | 硫化物系全固体电池用层压片和使用其的层压袋 |
| CN114716758A (zh) * | 2018-03-30 | 2022-07-08 | 大日本印刷株式会社 | 异味吸附成型品树脂组合物、异味吸附成型品以及包装材料 |
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| KR20130062334A (ko) * | 2010-09-01 | 2013-06-12 | 교도 인사쯔 가부시키가이샤 | 적층체, 포장용기 및 포장체 |
| JP7038569B2 (ja) * | 2018-03-01 | 2022-03-18 | 共同印刷株式会社 | ブリスターパック用積層体、及びそれを用いたブリスターパック |
| KR102332382B1 (ko) | 2021-05-04 | 2021-12-02 | 주식회사 아이코닉 | Ptp 블리스터 포장재, 이를 포함하는 ptp 블리스터 포장체 및 이의 제조방법 |
| KR102517998B1 (ko) * | 2022-05-16 | 2023-04-05 | 주식회사 라파스 | 마이크로니들 패치 포장용기 |
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- 2016-06-17 CN CN201680033636.3A patent/CN107614260A/zh active Pending
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| CN113400743A (zh) * | 2020-03-16 | 2021-09-17 | 株式会社Uacj制箔 | 铝层叠体、包装材料及泡罩包装体 |
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| WO2016204293A1 (ja) | 2016-12-22 |
| KR20180006962A (ko) | 2018-01-19 |
| EP3312004B1 (en) | 2020-09-02 |
| EP3312004A4 (en) | 2019-02-20 |
| KR102075089B1 (ko) | 2020-02-07 |
| JP6516842B2 (ja) | 2019-05-22 |
| JPWO2016204293A1 (ja) | 2018-01-25 |
| US20180186533A1 (en) | 2018-07-05 |
| EP3312004A1 (en) | 2018-04-25 |
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