TWI515113B - 積層體、包裝容器及包裝體 - Google Patents

積層體、包裝容器及包裝體 Download PDF

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Publication number
TWI515113B
TWI515113B TW100131429A TW100131429A TWI515113B TW I515113 B TWI515113 B TW I515113B TW 100131429 A TW100131429 A TW 100131429A TW 100131429 A TW100131429 A TW 100131429A TW I515113 B TWI515113 B TW I515113B
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TW
Taiwan
Prior art keywords
layer
thickness
film
packaging container
reinforcing layer
Prior art date
Application number
TW100131429A
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English (en)
Other versions
TW201221359A (en
Inventor
Shinichi Koizumi
Hikaru Yamamoto
Tatsuya Ogawa
Original Assignee
Kyodo Printing Co Ltd
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Filing date
Publication date
Application filed by Kyodo Printing Co Ltd filed Critical Kyodo Printing Co Ltd
Publication of TW201221359A publication Critical patent/TW201221359A/zh
Application granted granted Critical
Publication of TWI515113B publication Critical patent/TWI515113B/zh

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    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
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    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
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Description

積層體、包裝容器及包裝體
本發明是關於複數層被積層的積層體(laminatedbody)，使用該積層體的包裝容器及包裝體。
以往這種積層體被使用於例如藥的包裝容器(囊袋材(pocket material)、外殼(cover)等)。
藥是為了疾病或傷口的治療，或者為了保持、增進健 康而服用或塗抹的醫藥品。
此處，粉狀的藥是被封入薄的紙袋或薄的膜等，而粒狀或膠囊狀的藥往往以被稱為PTP(Press Through Pack：擠壓包裝)的氣泡包裝體(blister package)而被製品化。
氣泡包裝體為在其內部收納有粒狀或膠囊狀的藥，可透過透明的包裝容器目視辨識內部的藥。而且，氣泡包裝體為可藉由每一該透明的包裝容器以手指等將藥塞進，使當作蓋材的鋁基材破裂而取出內部的藥。
此處，藥有各式各樣的，其中也有耐濕性脆弱的藥或臭氣強烈的藥。因此，已知有藉由在包裝容器(積層體)的內部配置具有吸附劑(adsorbent)的吸附層，使該包裝容器具有吸附功能的技術(國際公開WO2006/115264號公報：參照專利文獻1)。
依照該技術，可考慮為可藉由使氣泡包裝體的包裝容器具有吸附功能，即使在氣泡包裝體的內部不將乾燥劑等包裝在一起也能維持乾燥狀態或防止氧化，或者可有效地吸收臭氣。
而且，藥之中也有對來自外部的濕氣或紫外線脆弱的藥。這種情形若包裝容器透明的話，則有藥本來的作用或效能劣化之虞。因此，已知有在包裝容器的內部形成鋁層的技術(參照日本國特許第3983131號公報：專利文獻2)。
依照該技術，可考慮為因在包裝容器的內部形成鋁層，包裝容器自身沒有透明性，其內部的藥無法目視辨識，但相反地卻能提高障壁性(barrier property)(氣密性)。
發明者等例如如記載於國際公開WO2006/115264號的說明書，著眼於如下：可藉由使包裝容器具有吸附功能，維持乾燥狀態或防止氧化，或者可有效地吸收臭氣。
而且另一方面，發明者等如記載於日本國特許第3983131號公報，也著眼於如下：可藉由在包裝容器形成鋁層提高障壁性。
但是，在單純組合上述的兩個技術的形態，亦即在由上依次積層有障壁層(barrier layer)/接著層/鋁層/接著層/吸附層的形態中，在將積層體成形成圓頂狀(加上凹陷或凹處)時，面臨了包裝容器的頂點部分頂破，或者包裝容器的下部的部分或囊袋的肩部的部分(凸狀部的角部分)裂開的問題。
由以上的背景，可一邊保持吸收性，同時也能發揮障壁性，且在成形時包裝容器(積層體)的一部分不會頂破，或者包裝容器(積層體)的端部不會裂開的技術被期望。
[專利文獻1]國際公開WO2006/115264號公報
[專利文獻2]日本國特許第3983131號公報
此處所揭示的第1發明為一種積層體，包含：吸收液體及氣體的至少一方之吸收層；在吸收層上隔著接著層積層之補強層；在補強層上隔著接著層積層之鋁層；在鋁層上隔著接著層積層，抑制液體及氣體的至少一方的進入之障壁層，補強層關於與拉伸方向垂直的方向，拉伸破裂強度 PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍。
因此，第1發明的積層體由下依次積層有：吸收層、接著層、補強層、接著層、鋁層、接著層、障壁層。
一由吸收層側將該積層體塞進障壁層側並成形，就完成障壁層成為最外層，吸收層成為最內層之圓頂狀的包裝容器(積層體)。
此情形在最內層的吸收層中，液體或氣體的吸收功能被發揮，並且在最外層的障壁層與鋁層的兩層中，障壁性(氣密性)被提高。
而且，在本案發明中因在吸收層與鋁層之間形成補強層，故可藉由該補強層提高積層體的整體的強度，解決在成形時積層體的頂點部分頂破，或者下部的部分的端部或囊袋的肩部的部分裂開之問題。
積層體的構成為補強層藉由選自於由雙軸延伸聚醯胺(biaxially oriented polyamide)、聚對苯二甲酸乙二酯(polyethylene terephthalate)以及聚氯乙烯(polyvinyl chloride)所組成的群的任一個形成較佳。
如此，藉由適宜選擇補強層的材料，可提供強度高且容易成形的積層體。
積層體的構成為補強層及障壁層藉由雙軸延伸聚醯胺形成較佳。
如此，補強層、障壁層都藉由以雙軸延伸聚醯胺形成，可提供強度高且容易成形的積層體。
積層體的構成為補強層藉由聚對苯二甲酸乙二酯或聚氯乙烯形成，障壁層藉由雙軸延伸聚醯胺形成較佳。
如此，藉由以聚對苯二甲酸乙二酯形成補強層，以雙軸延伸聚醯胺形成障壁層，可提供強度高且容易成形的積層體。
積層體的構成為補強層藉由雙軸延伸聚醯胺形成，障壁層藉由聚對苯二甲酸乙二酯形成較佳。
如此，藉由以雙軸延伸聚醯胺形成補強層，以聚對苯二甲酸乙二酯形成障壁層，可提供強度高且容易成形的積層體。
積層體的構成為補強層及障壁層藉由聚對苯二甲酸乙二酯形成較佳。
如此，補強層、障壁層都藉由以聚對苯二甲酸乙二酯形成，可提供強度高且容易成形的積層體。
依照該等解決手段，藉由適宜變更障壁層與補強層的組合，可提供富變化之更實用的積層體。
積層體的構成為補強層關於與拉伸方向(drawing direction)垂直的方向，拉伸破裂強度(tensile fracture strength)PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率(elongation at break)LTD位於45%<LTD<430%的範圍較佳。
藉由將補強層的拉伸破裂強度PTD及拉伸破裂伸長率LTD設定於這種範圍內，使得在成形時積層體的頂點部分不會頂破，或者下部的部分的端部或囊袋的肩部的部分不會 裂開，可良好地進行成形。
此點，在上述以外的範圍，亦即全都滿足以下的條件的情形下，在成形時積層體的頂點部分會頂破，或者下部的部分的端部或囊袋的肩部的部分會裂開，成為不可能成形的範圍。
(1)、當拉伸破裂強度PTD位於PTD<55MPa或360MPa≦PTD的範圍時
(2)、當拉伸破裂伸長率LTD位於LTD≦45%或430%≦LTD的範圍時
依照該等構成，藉由將補強層所使用的材料的拉伸破裂強度與拉伸破裂伸長率規定於適當的範圍內，可得到補強層堅固的功效。
第2發明的包裝容器是使用上述的積層體。而且，第2發明的包裝容器包含：吸收液體及氣體的至少一方之吸收層；在吸收層上隔著接著層積層之補強層；在補強層上隔著接著層積層之鋁層；在鋁層上隔著接著層積層，抑制液體及氣體的至少一方的進入之障壁層，補強層關於與拉伸方向垂直的方向，拉伸破裂強度PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍。
依照第2發明的包裝容器，能以包裝容器實現上述的積層體的作用、功效。
第3發明的包裝體為收容粒狀或膠囊狀的內容物(但是含有琥珀酸索非那新(solifenacin succinate)或 1-{[(α-isobutanoyloxyethoxy)carbonyl]aminomethyl}-1-cyclohexane acetic acid的情形除外)的包裝體，其特徵為：該包裝體包含：收容內容物之形成有凹狀的收容部之包裝容器；密封內容物的具備氣密性之蓋材，包裝容器由積層有如下的層之積層體構成：吸收液體及氣體的至少一方之吸收層；在吸收層上隔著接著層積層之補強層；在補強層上隔著接著層積層之鋁層；在鋁層上隔著接著層積層，抑制液體及氣體的至少一方的進入之障壁層，吸收層與補強層積層並且配設於收容有內容物側，補強層關於與拉伸方向垂直的方向，拉伸破裂強度PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍。
依照第3發明的包裝體，能以包裝體實現上述的積層體的作用、功效。
上述所揭示的發明也可一邊透過吸收層保持吸收性，一邊透過障壁層及鋁層確保障壁性，一邊透過形成於吸收層與鋁層之間的補強層提高包裝容器(積層體)的整體的強度而成形。
以下針對積層體、包裝容器及包裝體的實施形態來說明。
圖1是顯示與一個實施形態有關的氣泡包裝體之概略剖面圖。
氣泡包裝體10是當作包裝體的一例而舉出，將粒狀或膠囊狀的藥等之固體製劑20收納於內部的容器。
固體製劑20為粒狀或膠囊狀的藥等之內容物。針對固體製劑20可適用所需的材料或適宜組合所需的材料者，惟含有琥珀酸索非那新或1-{[(α-isobutanoyloxyethoxy)carbonyl]aminomethyl}-1-cyclohexane acetic acid者除外。
氣泡包裝體10具備成為基座(base)的蓋材30。蓋材30為密封固體製劑20之具備氣密性的構件。蓋材30可使用藉由PVC(Polyvinyl Chloride：聚氯乙烯)或EVA(Ethylene Vinyl Acetate：乙烯醋酸乙烯共聚樹脂)鍍AL(鋁)等。
而且，氣泡包裝體10具備包裝容器40。包裝容器40是以成形機(making machine)等將積層複數層的積層體成形成圓頂狀。包裝容器40將內部的固體製劑20包入並保護。在包裝容器40形成有收容固體製劑20的凹狀的收容部。將包裝容器40成形成圓頂狀時的成形方法(形成凹狀的收容部的方法)可舉出平板式加壓成形法(flat plate pressure forming method)、模塞助壓加壓成形法(plug assist forming method)、鼓式真空成形法(drum type vacuum forming method)、模塞助壓成形方法(plug forming method)等的PTP成形方法。蓋材30與包裝容器40可藉由重疊內面彼此並熱封(heat seal)而接著。當接著性仍舊低時，在蓋材30或包裝容器40的任一方更形成 接著劑層或熱封性樹脂層也可以。然後，氣泡包裝體10可藉由由包裝容器40側以手指等將固體製劑20塞進，使蓋材30破裂而取出固體製劑20。
其次，針對包裝容器40(積層體)的積層構造來說明。
圖2是針對包裝容器40的積層構造說明之圖。
包裝容器40在最下層具備吸收膜(吸收層)50。
吸收膜50為3層構造的膜，具有主要擔負水分或臭氣的吸收之主吸收層51，與保護主吸收層51之表層(skin layer)52。此外，使表層52具有吸收功能也可以。
吸收膜50與後述的補強層70積層並且配設於收容有固體製劑20(參照圖1)側。
在本實施形態中，主吸收層51使用將當作吸收劑(absorbent)的沸石(zeolite)加到LDPE(低密度聚乙烯：low density polyethylene)後的物質。而且，表層52使用LLDPE(線性低密度聚乙烯：linear low density polyethylene)。吸收膜50的厚度例如為30~200μm左右。 此外，吸收膜50也可以不是3層構造者，為1層、2層或4層以上的層構成者也可以，使用材料也不是被限定於該等材料。
吸收膜50以透過充氣成形法(inflation method)、T模法(T-die method)、共擠壓(coextrusion)等將樹脂與吸收劑形成膜(film)狀或片(sheet)狀較適合使用。
構成主吸收層51及表層52的樹脂的材料可使用選自於LDPE(低密度聚乙烯)、LLDPE(線性低密度聚乙烯)、 PP(聚丙烯(polypropylene))、氯化聚丙烯(chlorinated polypropylene)、飽和聚酯(saturated polyester)、EAA(乙烯-丙烯酸共聚物：Ethylene Acrylic Acid copolymer)、EMAA(乙烯-甲基丙烯酸共聚物：Ethylene Methacrylic Acid copolymer)、EEA(乙烯-丙烯酸乙酯共聚物：Ethylene Ethyl Acrylate copolymer)、EMA(乙烯-丙烯酸甲酯共聚物：Ethylene Methyl Acrylate copolymer)、離子聚合物(ionomer)、羧酸改質聚乙烯(carboxylic acid-modified polyethylene)、羧酸改質聚丙烯(carboxylic acid-modified polypropylene)、羧酸改質EVA(carboxylic acid-modified EVA)、PVC(聚氯乙烯)、聚苯乙烯(polystyrene)等的至少一種，或該等物質的混合物。構成主吸收層51的樹脂與構成表層52的樹脂為相同的樹脂也可以，且為不同的樹脂也可以。
而且，構成吸收膜50的吸收劑的材料可使用沸石(天然沸石(natural zeolite)、人工沸石(artificial zeolite)、合成沸石(synthetic zeolite))、氧化鈣或硫酸鎂(magnesium sulfate)等的化學吸收劑(chemical absorbent)、有缺氧(oxygen deficiency)的氧化鈰等的去氧劑(oxygen scavenger)等。沸石為包含分子篩(molecular sieve)，分子篩其有效細孔尺寸(effective pore size)為3~10Å左右較佳。分子篩配合所吸收的對象物的大小選擇其有效細孔尺寸。
而且，前述沸石的有效細孔尺寸為3Å以上較佳。
沸石因吸收速率(absorption rate)快，故可極快地吸收水分。沸石的一例之分子篩為依照分子的大小的不同而被使用於分離物質的多孔的粒狀物質，為具有均勻的細孔的構造，且吸收進入細孔的孔洞的小的分子並具有一種篩子的作用。
而且，包裝容器40具備在吸收膜50上隔著接著層60積層的補強層70。
補強層70是為了提高包裝容器40整體的強度的層，例如可使用雙軸延伸聚醯胺或PET(聚對苯二甲酸乙二酯)、PVC。補強層70的厚度例如為15~60μm左右。此外，補強層70若厚度為容許的範圍則可配設複數層。
而且，包裝容器40具備在補強層70上隔著接著層60積層的鋁層80。
鋁層80是為了提高藥等的固體製劑20的障壁性的層，例如可使用合金鋁箔。鋁層80的厚度例如為16~60μm左右。
而且，包裝容器40具備在鋁層80上隔著接著層60積層的障壁層90。
障壁層90是為了與下層的鋁層80一起提高障壁性的層，例如可使用雙軸延伸聚醯胺或PET(聚對苯二甲酸乙二酯)。障壁層90是發揮抑制液體或氣體的進入的功能的層。障壁層90的厚度例如為5~30μm左右。
接著層60發揮接著各層的作用，例如可使用胺甲酸乙酯系接著劑(urethane adhesive)等。
而且，若固定該包裝容器40的兩端部，由吸收膜50側將包裝容器40的中央部分塞進障壁層90側而成形，則完成障壁層90成為最外層，吸收膜50成為最內層之圓頂狀的包裝容器40(參照圖1)。
其次，舉具體的實施例來說明。此外，所揭示的發明不是被限定於該等實施例。
表1是顯示使用於實施例及比較例的各材料的膜的一覽之圖。
各膜的詳細如下所示。
[第1膜]
(1)、膜種類：OPP(雙軸延伸聚丙烯：biaxially oriented polypropylene)
(2)、厚度：40μm
(3)、品名：-OT P2002(東洋紡織股份有限公司(TOYOBO CO.,LTD)製，註冊商標)
(4)、拉伸破裂強度PMD：140MPa
(5)、拉伸破裂強度PTD：360MPa
(6)、拉伸破裂伸長率LMD：220%
(7)、拉伸破裂伸長率LTD：40%
此處，MD是指拉伸方向，TD是指與拉伸方向垂直的方向。
[第2膜]
(1)、膜種類：PET
(2)、厚度：25μm
(3)、品名：FT3PE(帝人杜邦薄膜股份有限公司(Teijin DuPont Films Japan Limited)、註冊商標)
(4)、拉伸破裂強度PMD：160MPa
(5)、拉伸破裂強度PTD：170MPa
(6)、拉伸破裂伸長率LMD：220%
(7)、拉伸破裂伸長率LTD：210%
[第3膜]
(1)、膜種類：PET
(2)、厚度：12μm或25μm
(3)、品名：E5100(東洋紡織股份有限公司製、東洋紡酯膜E5100型、註冊商標)
(4)、拉伸破裂強度PMD：230MPa
(5)、拉伸破裂強度PTD：240MPa
(6)、拉伸破裂伸長率LMD：100%
(7)、拉伸破裂伸長率LTD：90%
[第4膜]
(1)、膜種類：無延伸聚醯胺
(2)、厚度：25μm
(3)、品名：C-Z(三菱樹脂股份有限公司(Mitsubishi Plastics,Inc.)製，註冊商標)
(4)、拉伸破裂強度PMD：150MPa
(5)、拉伸破裂強度PTD：140MPa
(6)、拉伸破裂伸長率LMD：410%
(7)、拉伸破裂伸長率LTD：430%
[第5膜]
(1)、膜種類：雙軸延伸聚醯胺
(2)、厚度：15μm或25μm
(3)、品名：W(興人股份有限公司(Kohjin co.,Ltd.)、註冊商標)
(4)、拉伸破裂強度PMD：260MPa
(5)、拉伸破裂強度PTD：270MPa
(6)、拉伸破裂伸長率LMD：120%
(7)、拉伸破裂伸長率LTD：110%
[第6膜]
(1)、膜種類：雙軸延伸聚醯胺
(2)、厚度：15μm
(3)、品名：N2102(東洋紡織股份有限公司製，註冊商標)
(4)、拉伸破裂強度PMD：220MPa
(5)、拉伸破裂強度PTD：290MPa
(6)、拉伸破裂伸長率LMD：110%
(7)、拉伸破裂伸長率LTD：65%
[第7膜]
(1)、膜種類：PVC
(2)、厚度：60μm
(3)、品名：C-455(三菱樹脂股份有限公司製，註冊商標)
(4)、拉伸破裂強度PMD：85MPa
(5)、拉伸破裂強度PTD：55MPa
(6)、拉伸破裂伸長率LMD：140%
(7)、拉伸破裂伸長率LTD：170%
[第8膜]
(1)、膜種類：OPP
(2)、厚度：20μm
(3)、品名：U-1(三井化學Tohcello股份有限公司(Mitsui Chemicals Tohcello Inc.)製)
(4)、拉伸破裂強度PMD：130MPa
(5)、拉伸破裂強度PTD：265MPa
(6)、拉伸破裂伸長率LMD：160%
(7)、拉伸破裂伸長率LTD：45%
[第9膜]
(1)、膜種類：CPP(無延伸聚丙烯)
(2)、厚度：25μm
(3)、品名：-CT P1128(東洋紡織股份有限公司製，註冊商標)
(4)、拉伸破裂強度PMD：54MPa
(5)、拉伸破裂強度PTD：34MPa
(6)、拉伸破裂伸長率LMD：390%
(7)、拉伸破裂伸長率LTD：560%
其次，舉出組合該等薄片並形成積層體(包裝容器)時的具體的實施例來說明。
表2是顯示實施例的各層的材料及厚度的值之圖。
[實施例1]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後 的層(厚度30μm)/LLDPE(厚度10μm))
[實施例2]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度25μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例3]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度25μm的PET(表1中，使用第2膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例4]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度60μm的PVC(表1中，使用第7膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜 50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例5]
(1)、障壁層：厚度25μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度25μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例6]
(1)、障壁層：厚度12μm的PET(表1中，使用第3膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例7]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第6膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度15μm的雙軸延伸聚醯胺(表1中， 使用第6膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[實施例8]
(1)、障壁層：厚度25μm的PET(表1中，使用第2膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、補強層：厚度25μm的PET(表1中，使用第2膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
表3是顯示比較例的各層的材料及厚度的值之圖。
以下為比較例的詳細。在比較例中使用代替層取代補強層。此處，代替層是指與本案發明的補強層不同的概念的層，對本案發明的補強層而言為替換物，始終為為了與上述的各實施例比較而使用於取代補強層的層。
[比較例1]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、代替層：厚度40μm的OPP(表1中，使用第1膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[比較例2]
(1)、障壁層：厚度25μm的無延伸聚醯胺(表1中，使用第4膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、代替層：厚度25μm的無延伸聚醯胺(表1中，使用第4膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[比較例3]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、代替層：厚度20μm的OPP(表1中，使用第8膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[比較例4]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、代替層：厚度25μm的CPP(表1中，使用第9膜)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[習知例]
(1)、障壁層：厚度15μm的雙軸延伸聚醯胺(表1中，使用第5膜)
(2)、鋁層：厚度40μm的鋁(AL)
(3)、代替層：無(厚度0μm)
(4)、吸收層：厚度50μm的吸濕膜(為上述的吸收膜50，層構成為LLDPE(厚度10μm)/將沸石4A加到LDPE後的層(厚度30μm)/LLDPE(厚度10μm))
[評價項目]
然後，針對實施例1~8、比較例1~4及習知例，藉由以下的成形條件評價了成形時的樣子。
[成形條件]
(1)、成形機：MW-220 KANAE股份有限公司(KANAE CO.,LTD.)製連續成形機(continuous molding machine)
(2)、模塞(plug)的材質：PTFE(PolyTetraFluoroEthylene：聚四氟乙烯)系樹脂
(3)、模塞的直徑：10mm
(4)、目標深度：3.3mm
此處，模塞是指在成形時進行擠壓的棒，目標深度是指使包裝容器(積層體)凹陷到哪種程度的值(圓頂形狀的深度)。
[評價結果]
以肉眼觀察成形成圓頂形狀的包裝容器並進行了評價。
其結果，實施例1~8的例子不產生龜裂或裂紋等，特別無問題而能成形。因此得知，實施例1~8的基材的組合為可成形的組合。
另一方面，比較例1~4及習知例的例子產生包裝容器的頂點部分頂破(囊袋破裂)，或者包裝容器的下部的部分或囊袋的肩部的部分裂開，或者包裝容器產生龜裂的問題。因此得知，比較例1~4及習知例的基材的組合為不可成形的組合。
由該等實施例與比較例的對比明確以下的事項。
(1)、若藉由雙軸延伸聚醯胺形成補強層及障壁層，則包裝容器(積層體)不會產生龜裂等而可成形。
(2)、若藉由聚對苯二甲酸乙二酯或聚氯乙烯形成補強層，藉由雙軸延伸聚醯胺形成障壁層，則包裝容器(積層體)不會產生龜裂等而可成形。
(3)、若藉由雙軸延伸聚醯胺形成補強層，藉由聚對苯二甲酸乙二酯形成障壁層，則包裝容器(積層體)不會產生 龜裂等而可成形。
(4)、若藉由聚對苯二甲酸乙二酯形成補強層及障壁層，則包裝容器(積層體)不會產生龜裂等而可成形。
圖3是針對表1所示的各膜的TD方向(Transverse Direction：垂直方向)的物理性質顯示之圖。
在該圖中，縱軸是顯示關於TD方向的拉伸破裂伸長率[%]，橫軸是顯示關於TD方向的拉伸破裂強度[MPa]。
在本實施形態中不使用各膜的MD方向(Machine Direction：流動方向)，而是使用TD方向的物理性質進行評價。此乃因PTP(擠壓包裝)的成形性強烈地依存於TD方向的參數，與MD方向的參數的關連性少此一理由所造成的。亦即，補強層(補強膜)因在製膜時被拉伸於膜的MD方向，一邊被拉伸一邊被捲繞於輥子(roll)，故膜的MD方向的強度比TD方向強，也容易耐PTP(擠壓包裝)的成形的負載。另一方面，因TD方向產生由於膜而使其拉伸或不使其拉伸等各式各樣的因素，故產生的因素的強弱各自不同，強度比較弱。因此，在本實施形態中使用容易影響PTP(擠壓包裝)的成形性的TD方向的物理性質進行評價。
若將表1所示的各膜的拉伸破裂伸長率(TD)及拉伸破裂強度(TD)點繪(plot)於圖中，則成為圖3所示的狀態。
然後，在點繪各膜的物理性質的狀態下，疊加上述評價結果的話，可得到圖3的四角形的虛線(圖中參照區域A2)。
亦即，在上述評價結果中雖然表3的比較例1~4及習 知例受到不可成形的評價，但該等例子為使用於取代補強層之代替層使用表1的第1膜、第4膜、第8膜、第9膜。 而且，習知例為不形成補強層的例子。
因此，以四角形的虛線包圍可由上述各實施例及各比較例得到的區域，視其內側的區域為成形性良好的區域。
由該四角形的虛線的區域明確以下的事項。
針對補強層，關於與拉伸方向垂直的方向(TD)，若設定為拉伸破裂強度PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍，則在成形時包裝容器(積層體)的頂點部分不會頂破，或者下部的部分的端部或囊袋的肩部的部分不會裂開，可良好地進行成形。 此外，設拉伸破裂強度PTD的下限值為55MPa就包裝用基材膜而言，拉伸破裂強度PTD的值未滿30MPa者除了用途被限定的特殊的膜之外基本上不存在，因第9膜(拉伸破裂強度PTD=34MPa)受到不可成形的評價，故以第7膜的拉伸破裂強度PTD的值(55MPa)當作拉伸破裂強度PTD的下限值。
另一方面得知，若為該等範圍外(區域A2的範圍外)，則如比較例1~4及習知例般，在成形時包裝容器(積層體)的頂點部分頂破，或者下部的部分的端部或囊袋的肩部的部分裂開，成為不可成形的範圍。
所揭示的發明不會被上述的實施形態及實施例限制，可伴隨著各種的變形或置換而實施。而且，在上述的實施形態及實施例舉出的積層體及包裝容器的構成或材料都是較佳的舉例說明，當然可將該等例子適宜變形而實施發明。
10‧‧‧氣泡包裝體(包裝體)
20‧‧‧固體製劑
30‧‧‧蓋材
40‧‧‧包裝容器(積層體)
50‧‧‧吸收膜(吸收層)
51‧‧‧主吸收層
52‧‧‧表層
60‧‧‧接著層
70‧‧‧補強層
80‧‧‧鋁層
90‧‧‧障壁層
圖1是顯示與一個實施形態有關的氣泡包裝體之概略剖面圖。
圖2是針對包裝容器40的積層構造說明之圖。
圖3是針對表1所示的各膜的TD方向的物理性質顯示之圖。針對與各膜的拉伸方向垂直的方向(TD)的物理性質顯示之圖。
40‧‧‧包裝容器(積層體)
50‧‧‧吸收膜(吸收層)
51‧‧‧主吸收層
52‧‧‧表層
60‧‧‧接著層
70‧‧‧補強層
80‧‧‧鋁層
90‧‧‧障壁層

Claims (8)

  1. 一種積層體，包含：吸收液體及氣體的至少一方之吸收層；在該吸收層上隔著接著層積層之補強層；在該補強層上隔著接著層積層之鋁層；以及在該鋁層上隔著接著層積層，抑制液體及氣體的至少一方的進入之障壁層，該補強層關於與拉伸方向垂直的方向，拉伸破裂強度PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍。
  2. 如申請專利範圍第1項之積層體，其中該補強層藉由選自於由雙軸延伸聚醯胺、聚對苯二甲酸乙二酯以及聚氯乙烯所組成的群的任一個形成。
  3. 如申請專利範圍第1項之積層體，其中該補強層及該障壁層藉由雙軸延伸聚醯胺形成。
  4. 如申請專利範圍第1項之積層體，其中該補強層藉由聚對苯二甲酸乙二酯或聚氯乙烯形成，該障壁層藉由雙軸延伸聚醯胺形成。
  5. 如申請專利範圍第1項之積層體，其中該補強層藉由雙軸延伸聚醯胺形成，該障壁層藉由聚對苯二甲酸乙二酯形成。
  6. 如申請專利範圍第1項之積層體，其中該補強層及該障壁層藉由聚對苯二甲酸乙二酯形成。
  7. 一種包裝容器，使用申請專利範圍第1項至第6 項中任一項之積層體。
  8. 一種包裝體，為收容粒狀或膠囊狀的內容物(但是含有琥珀酸索非那新或1-{[(α-isobutanoyloxyethoxy)carbonyl]aminomethyl}-1-cyclohexane acetic acid的情形除外的包裝體，其特徵為：該包裝體包含：收容該內容物之形成有凹狀的收容部之包裝容器；以及密封該內容物的具備氣密性之蓋材，該包裝容器由積層有如下的層之積層體構成：吸收液體及氣體的至少一方之吸收層；在該吸收層上隔著接著層積層之補強層；在該補強層上隔著接著層積層之鋁層；以及在該鋁層上隔著接著層積層，抑制液體及氣體的至少一方的進入之障壁層，該吸收層與該補強層積層並且配設於收容有該內容物側，該補強層關於與拉伸方向垂直的方向，拉伸破裂強度PTD位於55MPa≦PTD<360MPa的範圍，拉伸破裂伸長率LTD位於45%<LTD<430%的範圍。
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US20150291337A1 (en) 2015-10-15
EP2612824B1 (en) 2020-05-20
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JP5802673B2 (ja) 2015-10-28
EP2612824A4 (en) 2017-10-11
US20130168270A1 (en) 2013-07-04
KR20130062334A (ko) 2013-06-12
TW201221359A (en) 2012-06-01
JPWO2012029323A1 (ja) 2013-10-28
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WO2012029323A1 (ja) 2012-03-08
US10239680B2 (en) 2019-03-26

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