JP6359621B2 - 使い捨て繊維製品用生地 - Google Patents
使い捨て繊維製品用生地 Download PDFInfo
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- JP6359621B2 JP6359621B2 JP2016254292A JP2016254292A JP6359621B2 JP 6359621 B2 JP6359621 B2 JP 6359621B2 JP 2016254292 A JP2016254292 A JP 2016254292A JP 2016254292 A JP2016254292 A JP 2016254292A JP 6359621 B2 JP6359621 B2 JP 6359621B2
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B9/00—Undergarments
- A41B9/12—Protective undergarments
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- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
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- B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
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Description
前記積層シートにおける前記第1の繊維状シート、前記繊維材料及び前記第2の繊維状シートの各相互間は接合され且つ前記積層シートにおいて、前記弾性部材はその長さ方向に亘って接合され、
前記積層シートは、前記弾性部材により凹凸面が形成された襞部を有し、
前記襞部の凹凸面における凹部と凸部はいずれも、前記第1の繊維状シートと、前記第1の繊維状シートと隣り合う前記繊維材料と、前記繊維材料と隣り合う前記第2の繊維状シートが積層された層により形成され、
且つ、蒸散性(II)試験(ボーケン規格BQEA028)における試験開始後20分の蒸散率が40%以上である蒸散性を有するものである。
(図4参照)における繊維材料4(紙材料)に吸収される。また、拭き取られなかった汗300は図13cに示すように、襞部6により形成される空間内に蒸散し同様に繊維材料4(紙材料)に吸収される。これにより、生地1は汗300によって肌200に密着することはなく、また、繊維材料4(紙材料)に吸収された汗300は外部に効率的に蒸散される(図13c)。そのため、汗300の乾きも速く汗300によるべたつき感がなく、心地よく着用できるものである。
(実施例1)
通気性シートとして、スパンボンド不織布を用い、液拡散性繊維シートとして、パルプ100%の紙(トイレットペーパー用の紙シート:目付量18g/m2)をそのまま印刷せずに用い、線状弾性体として、径620デシテックスのウレタンゴムを用いた。2枚の不織布の間に、紙とウレタンゴムとをホットメルト接着剤(ホットメルト接着剤の総目付量1.2g/m2)により接着して得た総目付量38g/m2のシート素材を実施例1とした。
実施例1と同様の不織布、ウレタンゴムを用い、ホットメルト接着剤により、不織布間にウレタンゴムを挟み込んで接着し(ホットメルト接着剤の総目付量1.2g/m2)、総目付量が20g/m2であるシート素材を比較例1とした。
表面及び裏面の不織布がスパンボンド不織布であり、不織布間にゴム径620デシテックスのウレタンゴムが介在している総目付量が24g/m2である従来品のシート素材を比較例2とした。
表面及び裏面の不織布がサーマルボンド不織布であり、不織布間にゴム径620デシテックスのウレタンゴムが介在している総目付量を22g/m2である従来品のシート素材を比較例3とした。
表面及び裏面の不織布がサーマルボンド不織布であり、不織布間にゴム径620デシテックスのウレタンゴムが介在している総目付量を22g/m2である他の従来品のシート素材を比較例4とした。
表面及び裏面の不織布がサーマルボンド不織布であり、不織布間にゴム径620デシテックスのウレタンゴムが介在している総目付量を20g/m2である従来品のシート素材を比較例5とした。
式(2)において、a2−a1は、試験体の1時間当たりの質量の変化量(g/h)であり、SA1は、透湿面積(m2)である。
実施例1と同様の不織布、紙、ホットメルト接着剤、ウレタンゴムを用いてシート素材を調整した。実施例2、3で用いた紙は、一対の平ロールを用いて表4に示す回数のエンボス処理を施した。使用した紙の目付量、ホットメルト接着剤の総目付量、シート素材の総目付量を表4にあわせて示す。これらのシート素材について以下の方法で接触冷感、湿潤接触温熱感を測定した。接触冷感、湿潤接触例温感、及び接触冷感と湿潤接触冷温感の比(接触冷感/湿潤接触冷温感)の値の結果を表5に示す。
比較例2と同様のシート素材を用い、実施例2〜5と同様に接触冷感、湿潤接触冷温感を試験した。結果を表5に示す。
比較例4と同様のシート素材を用い、実施例2〜5と同様に接触冷感、湿潤接触冷温感を試験した。結果を表5に示す。
比較例3と同様のシート素材を用い、実施例2〜5と同様に接触冷感、湿潤接触冷温感を試験した。結果を表5に示す。
3 第2の繊維状シート
4 繊維材料
5 弾性部材
Claims (8)
- 通気性を有する第1の繊維状シート及び通気性を有する第2の繊維状シートと、前記第1の繊維状シートと前記第2の繊維状シートとの間に介在し、液拡散性を有する繊維材料とを有し、前記第1の繊維状シート、前記第2の繊維状シート及び前記繊維材料を弾性部材と共に積層してなる積層シートにより構成され、
前記積層シートにおける前記第1の繊維状シート、前記繊維材料及び前記第2の繊維状シートの各相互間は接合され且つ前記積層シートにおいて、前記弾性部材はその長さ方向に亘って接合され、
前記積層シートは、前記弾性部材により凹凸面が形成された襞部を有し、
前記襞部の凹凸面における凹部と凸部はいずれも、前記第1の繊維状シートと、前記第1の繊維状シートと隣り合う前記繊維材料と、前記繊維材料と隣り合う前記第2の繊維状シートが積層された層により形成され、
且つ、蒸散性(II)試験(ボーケン規格BQEA028)における試験開始後20分の蒸散率が40%以上である蒸散性を有する、
使い捨て繊維製品用生地。 - 前記蒸散性(II)試験(ボーケン規格BQEA028)における試験開始後60分の蒸散率が90%以上である蒸散性を有する、
請求項1に記載の使い捨て繊維製品用生地。 - 前記第1の繊維状シートと前記繊維材料は、前記弾性部材を介して間欠的に接合されている、
請求項1または2に記載の使い捨て繊維製品用生地。 - 前記第2の繊維状シートと前記繊維材料とは間欠的に接合されている、
請求項1〜3のいずれかに記載の使い捨て繊維製品用生地。 - 前記弾性部材は、伸縮性を有する複数の線状弾性体からなり、
前記複数の線状弾性体は、積層シートの幅方向に間隔を設けて配置され、前記第1の繊維状シートと前記繊維材料との間に接合されている、
請求項1〜4のいずれかに記載の使い捨て繊維製品用生地。 - 前記繊維材料は、液拡散性および液透過性を有する素材からなる、
請求項1〜5のいずれかに記載の使い捨て繊維製品用生地。 - 前記繊維材料は、紙材料からなる、
請求項1〜6のいずれかに記載の使い捨て繊維製品用生地。 - 前記繊維材料は、前記接合に用いられる接着剤が浸み込んで形成される接着剤浸透部を有する、
請求項1〜7のいずれかに記載の使い捨て繊維製品用生地。
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