JP2018023785A - 皮膚貼付材ならびに皮膚貼付材巻回体 - Google Patents
皮膚貼付材ならびに皮膚貼付材巻回体 Download PDFInfo
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- JP2018023785A JP2018023785A JP2017154299A JP2017154299A JP2018023785A JP 2018023785 A JP2018023785 A JP 2018023785A JP 2017154299 A JP2017154299 A JP 2017154299A JP 2017154299 A JP2017154299 A JP 2017154299A JP 2018023785 A JP2018023785 A JP 2018023785A
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- Prior art keywords
- skin patch
- skin
- adhesive layer
- acrylic copolymer
- mass
- 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
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
- A61F13/0203—Adhesive bandages or dressings with fluid retention members
- A61F13/0226—Adhesive bandages or dressings with fluid retention members characterised by the support layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
- A61F13/023—Adhesive bandages or dressings wound covering film layers without a fluid retention layer
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Abstract
Description
基材フィルムの一方の面に粘着剤層が設けられ、前記粘着剤層の粘着面を覆って剥離可能に積層された剥離ライナーを有する皮膚貼付材であって、
前記粘着剤層は、アクリル系共重合体を含み、
前記基材フィルムの厚みは、1〜9μmであり、前記粘着剤層の厚みは、16〜50μmであることを特徴とする皮膚貼付材に関する。
本発明の皮膚貼付材を構成する基材フィルムの厚さは、1〜9μmであることが必要であり、3〜9μmであることが好ましい。基材フィルムの厚さが1μm未満であると、皮膚貼付材を使用する際、または使用後皮膚面から剥離する際に、皮膚貼付材が破断してしまうおそれがある。一方、基材フィルムの厚さが9μmを超えると、皮膚貼付材を皮膚面に貼付している際に、皮膚面の柔軟な動きに対してツッパリ感のような違和感が生じる場合や、基材フィルムの種類によっては皮膚貼付材の端部に引っ掛かりが生じる場合がある。
本発明において、粘着剤層の厚さは16〜50μm、好ましくは20〜35μmとする。粘着剤層の厚さが16μm未満であると、皮膚への粘着力が十分ではなく、場合によっては皮膚貼付材の端部が剥がれ易くなる可能性がある。一方、粘着剤層の厚さが50μmを超えると、皮膚貼付材を皮膚面に貼付している際に、皮膚貼付材の端部が引っ掛かったり、端部から粘着剤層がはみ出しやすくなったり、端部が汚れるおそれがある。
イソノニルアクリレート65部、2−メトキシエチルアクリレート30部、アクリル酸5部からなる単量体混合物を共重合反応して得られたアクリル系共重合体の溶液に、アクリル系共重合体100部に対して、トリカプリル酸グリセリル60部、架橋剤としての三官能性イソシアネート化合物0.04部を配合して均一な粘着剤溶液を作製した。
基材フィルム種、基材の厚みおよび乾燥後の粘着剤層の厚みを表1に記載するように変更した以外は実施例1と同様にして、実施例2〜4及び比較例1〜4の皮膚貼付材を得た。
実施例1〜4及び比較例1〜4の各皮膚貼付材について、ボランティア5人の前腕部に、幅50mm×長さ50mmの矩形状に裁断した皮膚貼付材の剥離ライナーを剥がした後、粘着剤層面を貼着した。次いで、担持フィルムを剥離し、この状態で、室温で3時間経過した際の、貼付箇所のツッパリ感、皮膚貼付材の端部の浮き具合、皮膚貼付材の端部の引っ掛かりの有無を3段階で評価した。
3:ツッパリ感が無い、2:若干ツッパリ感がある、1:ツッパリ感がある
(浮きの具合)
3:浮きなし、2:端部に若干浮きあり、1:半分以上浮きあり
(引っ掛かり具合)
3:端部が引っ掛からない、2:端部がわずかに引っ掛かる、3:端部が引っ掛かる
実施例1〜4の皮膚貼付材は、貼付している間、端部の浮きも見られず良好な皮膚貼付性を示した。また、実施例1〜4の皮膚貼付材は、皮膚の動きに対して良好な追従性を示し、ツッパリ感がほとんど無く、貼付することを感じさせないような良好なフィット感であった。さらに、実施例1〜4の皮膚貼付材は、貼付時の端部の引っ掛かりもなく、粘着剤層のはみ出しによる汚れが生じないものであった。
イソノニルアクリレート65部、2−メトキシエチルアクリレート30部、アクリル酸5部からなる単量体混合物を共重合反応して得られたアクリル系共重合体の溶液に、アクリル系共重合体100部に対して、トリカプリル酸グリセリル60部、架橋剤としての三官能性イソシアネート化合物0.13部を配合して均一な粘着剤溶液を作製した。
ポリウレタンフィルムの厚みおよび乾燥後の粘着剤層の厚みを表3に記載するように変更した以外は実施例5と同様にして、実施例6〜9及び比較例5〜8の皮膚貼付材を得た。
実施例5〜9及び比較例5〜8の皮膚貼付材について、皮膚貼付材を幅10mm×長さ100mmの矩形状に裁断し、剥離ライナーを剥がした後、引張試験機のチャック間が40mmになるように装着した。次に、担持フィルムを剥がした後、速度300mm/分で引っ張り、伸び率が10%、30%、100%のときの荷重(N/10mm)を読み取った(n=3の平均値)。
実施例5〜9及び比較例5〜8の皮膚貼付材について、口径38mmのガラス容器に精製水10mLを入れ、ガラス容器の口を剥離ライナーおよび担持フィルムを剥がした皮膚貼付材で覆い、ガラス容器の口部分外周に粘着テープを捲きつけて密封シールした。このガラス容器の重量を測定した後、これを温度40℃、湿度30%RHの条件下で24時間保存した。24時間保存後、ガラス容器の重量を測定して、保存前後の重量差から、水蒸気が透過した量を求めた。この値から試験片の1m2当りの透湿量(透湿度)を算出した(n=3の平均値)。
実施例5〜9及び比較例5〜8の皮膚貼付材について、皮膚貼付材の担持フィルムを剥離し、ポリウレタンフィルム面に粘着テープ(No.31B:日東電工株式会社製)を貼り合わせた。次に、幅10mm×長さ約70mmの矩形状に裁断し、剥離ライナーを剥がした後、粘着剤層面をベークライト板に貼り合わせ、重さ2kgのローラーを一往復させて圧着した。30分経過後、引張試験機にて、剥離角度180°、速度300mm/分にて引き剥がし、その際の剥離力を測定した(n=3の平均値)。
実施例5〜9の皮膚貼付材は、適度な粘着力を有することから、皮膚面への良好な貼付性を示すとともに、低いモジュラスと高い透湿度によって、貼付時の蒸れやツッパリ感などを感じにくく、貼付していることを感じさせないような良好なフィット感を示すものであった。
一方、比較例5及び6の皮膚貼付材は、実施例と比較してモジュラスが高い傾向にあり、貼付時にツッパリ感を有し、明らかに貼付していることが感じられるものであった。比較例7の皮膚貼付材は、モジュラスが低くかつ透湿度も高いものであったが、粘着力が低く、貼付時に剥がれやすいものであった。比較例8の皮膚貼付材は、透湿度が低い水準にあり、蒸れなどが生じやすく、掻痒感を有するおそれがあるものであった。
Claims (8)
- 基材フィルムの一方の面に粘着剤層が設けられ、前記粘着剤層の粘着面を覆って剥離可能に積層された剥離ライナーを有する皮膚貼付材であって、
前記粘着剤層は、アクリル系共重合体を含み、
前記基材フィルムの厚みは、1〜9μmであり、前記粘着剤層の厚みは、16〜50μmであることを特徴とする皮膚貼付材。 - 前記基材フィルムが、ウレタン系ポリマー、アミド系ポリマー、アクリル系ポリマー、オレフィン系ポリマーおよびエステル系ポリマーからなる群より選ばれた少なくとも一種である請求項1に記載の皮膚貼付材。
- 前記アクリル系共重合体が、(メタ)アクリル酸アルキルエステル単量体、およびアルコキシ基含有エチレン性不飽和単量体を含む単量体混合物から得られるアクリル系共重合体を含有する請求項1または2に記載の皮膚貼付材。
- 前記アクリル系共重合体が、(メタ)アクリル酸アルキルエステル単量体40〜80質量%、およびアルコキシ基含有エチレン性不飽和単量体10〜60質量%を含む単量体混合物から得られるアクリル系共重合体を含有する請求項1〜3のいずれか1項に記載の皮膚貼付材。
- 前記アクリル系共重合体が、さらにカルボキシル基含有エチレン性不飽和単量体を含む単量体混合物から得られるアクリル系共重合体を含有する請求項3に記載の皮膚貼付材。
- 前記アクリル系共重合体が、(メタ)アクリル酸アルキルエステル単量体40〜80質量%、アルコキシ基含有エチレン性不飽和単量体10〜50質量%、およびカルボキシル基含有エチレン性不飽和単量体1〜10質量%を含む単量体混合物から得られるアクリル系共重合体を含有する請求項5に記載の皮膚貼付材。
- 前記基材フィルムの他方の面を覆って剥離可能に積層された担持フィルムを有する請求項1〜6のいずれか1項に記載の皮膚貼付材。
- 請求項7に記載の皮膚貼付材を巻回してなる皮膚貼付材巻回体。
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WO2020158698A1 (ja) * | 2019-01-28 | 2020-08-06 | 日東電工株式会社 | 皮膚貼付材 |
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