JP2016014216A - 繊維、不織布及びその用途 - Google Patents
繊維、不織布及びその用途 Download PDFInfo
- Publication number
- JP2016014216A JP2016014216A JP2015193239A JP2015193239A JP2016014216A JP 2016014216 A JP2016014216 A JP 2016014216A JP 2015193239 A JP2015193239 A JP 2015193239A JP 2015193239 A JP2015193239 A JP 2015193239A JP 2016014216 A JP2016014216 A JP 2016014216A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- nonwoven fabric
- anionic surfactant
- propylene
- acid
- 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.)
- Granted
Links
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Classifications
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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
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- D—TEXTILES; PAPER
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- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
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- A—HUMAN NECESSITIES
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- 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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- D—TEXTILES; PAPER
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- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
- D10B2509/026—Absorbent pads; Tampons; Laundry; Towels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
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- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Artificial Filaments (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
- Materials For Medical Uses (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
本発明の繊維及び当該繊維を含む不織布を形成するオレフィン系重合体は、エチレン、プロピレン、1−ブテン、1−ヘキセン、4−メチル−1−ペンテン及び1−オクテン等のα−オレフィンの単独若しくは共重合体であり、具体的には、高圧法低密度ポリエチレン、線状低密度ポリエチレン(所謂LLDPE)、高密度ポリエチレン、エチレン・プロピレンランダム共重合体、エチレン・1−ブテンランダム共重合体等のエチレンの単独重合体あるいはエチレン・α−オレフィン共重合体等のエチレン系重合体;プロピレンの単独重合体(所謂ポリプロピレン)、プロピレン・エチレンランダム共重合体、プロピレン・エチレン・1−ブテンランダム共重合体(所謂ランダムポリプロピレン)、プロピレンブロック共重合体、プロピレン・1−ブテンランダム共重合体等のプロピレン系重合体;1−ブテン単独重合体、1−ブテン・エチレン共重合体、1−ブテン・プロピレン共重合体等の1−ブテン系重合体;ポリ4−メチル−1−ペンテン等が挙げられる。
本発明に係わるプロピレン系重合体としては、通常、融点(Tm)が125℃以上、好ましくは130〜165℃の範囲にあるプロピレンの単独重合体若しくはプロピレンと少量のエチレン、1−ブテン、1−ペンテン、1−ヘキセン、1−オクテン、4−メチル−1−ペンテン等の炭素数2以上(但し炭素数3を除く)、好ましくは2〜8(但し炭素数3を除く)の1種または2種以上のα−オレフィンとの共重合体が好ましい。
本発明に係わる酸形態のアニオン系界面活性剤とは、水あるいは水分の存在下において、酸性を示すことができるアニオン系界面活性剤である。酸形態のアニオン系界面活性剤としては、特に、緩衝能を有することでpHの変化を緩和する能力を発現できることから、弱酸性を示す酸形態のアニオン系界面活性剤が好ましく、具体的には、脂肪酸、或いは酸形態のリン酸エステル型界面活性剤が好ましい。また、酸形態の当該界面活性剤であれば、完全中和塩でない、例えばモノアルキルリン酸エステル塩のような部分中和塩であっても良い。
本発明に係るノニオン系界面活性剤としては、種々公知のノニオン系界面活性剤を使用することが可能であり、それを添加して繊維を形成したときに繊維表面が親水性を呈するものであれば特に限定されない。ノニオン系界面活性剤の具体例としては、脂肪酸グリセライド、アルコキシ化アルキルフェノール、ポリオキシアルキレン脂肪酸エステル、アルキルポリオキシエチレンアルコール、脂肪酸アミド、ポリオキシアルキレンソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、ソルビタン脂肪酸エステル、脂肪酸アルカノールアミド、ポリオキシアルキレンアルキルエーテル、ポリオキシアルキレンアルキルフェニルエーテル、アルキルポリグルコシド、脂肪酸ジエタノールアミド、アルキルモノグリセリルエーテル等が挙げられる。
本発明に係わるオレフィン系重合体組成物は、前記オレフィン系重合体100重量部に対して、前記酸形態のアニオン系界面活性剤を0.1〜30重量部、好ましくは1〜15重量部、さらに好ましくは1.5〜10重量部含む組成物である。
本発明の繊維及び当該繊維を含む不織布は、前記オレフィン系重合体と前記酸形態のアニオン系界面活性剤及び好ましくは前記ノニオン系界面活性剤を含むオレフィン系重合体組成物の繊維及び当該繊維を含む不織布である。
本発明の不織布は、種々用途により、単独でも他の層と積層して用いてもよい。
不織布の原料として短繊維を用いる場合は、種々公知の製造方法、例えば、湿式法あるいは乾式法(カード)により製造し得る。
本発明の長繊維不織布は、種々公知の不織布の製造方法により製造し得るが、スパンボンド法により製造する方法が、生産性に優れる点で好ましい。
本発明の吸収性物品は、前記不織布、好ましくは長繊維不織布をトップシート及び/又はセカンドシート、あるいは吸収体を包むシート(コアラップ)に用いてなる吸収性物品である。本発明の吸収性物品は、使い捨ておむつ、パンツあるいは生理用品、尿取りパッド、ペット用シートなどを含む。
以下の手順にてかぶれの程度を評価した。
健康な3歳児(男)から採取した便を蒸留水にて1%に希釈し、(株)コクサン社製冷却高速遠心分離機H−201FRを用い、3000rpm−15分間遠心分離した上澄み液を採取して評価液とした。この評価液に、以下の実施例、及び比較例で製造した不織布サンプルを1分、及び30分間浸した後、ISO10993−10(炎症および遅効性過敏症のための試験)に基づき調整したうさぎ3匹の皮膚に貼付し、48時間後の皮膚の状態を観察した。
1点:3匹とも皮膚の状態に殆ど変化がなかった。
2点:1〜2匹に、僅かに浮腫、斑点が現れた。
3点:3匹とも、僅かに浮腫、斑点が現れた。
4点:1〜2匹に浮腫、斑点が現れた。
5点:3匹とも浮腫、斑点が現れた。
6点:3匹とも浮腫、斑点が顕著に現れた。
〔押出成型性〕
1点:押出機スクリューへの食込み状態良好。
2点:押出機スクリューへの食込み状態に難あり。ノズル圧力変動あり。
オレフィン系重合体100重量部に対して酸形態のアニオン系界面活性剤、あるいはノニオン系界面活性剤が表1記載の量含む組成物を以下のようにして調整した。酸形態のアニオン系界面活性剤としてステアリン酸(花王社製、商品名ルナックS−90V)10重量部、及びノニオン系界面活性剤としてステアリルアルコールのエチレンオキサイド付加物(BASF社(旧Ciba社)製、Irgasurf HL560)10重量部を、融点(Tm):142℃、MFR:60g/10分のプロピレン・エチレンランダム共重合体(PP−1):79.95重量部、酸化防止剤(BASF社(旧Ciba社)製、商品名Irgafos168)を0.05重量部と共に230℃で溶融混練して押出し、ペレット状のマスターバッチ(MB―1)を用意した。
押出性能を評価するために、組成物‐1を、単軸押出機(スクリュー径30mm、L/D=30)に投入し、押出量4.4kg/hr、樹脂温度200℃にて加熱溶融させたところ、押出機スクリューへの組成物−1の食込み状態は界面活性剤を加えない時と同様で良好であった。
酸形態のアニオン系界面活性剤、及びノニオン系界面活性剤として、以下の化合物を用い、且つ、添加量を表1に示す通りに変更する以外は参考例1と同様に行い、長繊維不織布を得た。得られた長繊維不織布を用いて、前記記載のかぶれ評価方法によりかぶれの程度を評価した。結果を表1に示す。
ミリスチン酸(C14):花王社製 商品名 ルナックMY−98
オレス−4リン酸(C18):東邦化学工業社製 商品名 フォスファノールRB−410
オレフィン系重合体100重量部に対して酸形態のアニオン系界面活性剤、あるいはノニオン系界面活性剤が表1記載の量含む組成物を以下のようにして調整した。酸形態のアニオン系界面活性剤としてドデシルリン酸(竹本油脂社製)5重量部、及びノニオン系界面活性剤としてポリ(オキシエチレン)1,6-ヘキサンジオール・ジラウレート(竹本油脂社製)14重量部、ポリ(オキシエチレン)ソルビタン三オレイン酸エステル(竹本油脂社製)1重量部を、融点(Tm):142℃、MFR:60g/10分のプロピレン・エチレンランダム共重合体(PP−1):79.95重量部、酸化防止剤(BASF社(旧Ciba社)製、商品名Irganox1010)を0.05重量部と共に180℃で溶融混練して押出し、ペレット状のマスターバッチ(MB―2)を用意した。
押出性能を評価するために、組成物‐2を、単軸押出機(スクリュー径30mm、L/D=30)に投入し、押出量4.4kg/hr、樹脂温度200℃にて加熱溶融させたところ、押出機スクリューへの組成物−2の食込み状態は界面活性剤を加えない時と同様で良好であった。
実施例1で用いたノニオン系界面活性剤を用い、酸形態のアニオン系界面活性剤として以下の化合物を用い、且つ、添加量を表1に示す通りに変更する以外は実施例1と同様に行い、長繊維不織布を得た。得られた長繊維不織布を用いて、前記記載のかぶれ評価方法によりかぶれの程度を評価した。結果を表1に示す。
オクチルリン酸(C8):竹本油脂社製
オクタデカン-1-イル= 二水素=ホスファート(C18):竹本油脂社製
リン酸水素ジオクタデシル(C18):竹本油脂社製
参考例1で用いたノニオン系界面活性剤のみを添加し、酸形態のアニオン系界面活性剤を添加しない点以外は参考例1と同様に行い、長繊維不織布を得た。得られた長繊維不織布を用いて、前記記載のかぶれ評価方法によりかぶれの程度を評価した。結果を表2に示す。
PP−1を用いてスパンボンド法により溶融紡糸し、長繊維不織布を得た。紡糸に続いて刻印形状が菱形、エンボス面積率が18%、エンボス面積(刻印一つ当たりの面積)が0.41mm2のエンボスロールを用いて、エンボスロールおよび平滑ロールの温度を125℃、線圧力を60N/mmとして熱エンボス加工し、目付けが20g/m2の長繊維不織布(NW−1)を得た。一方、表2で示す比較例2〜6として、以下の化合物を、各々が溶解可能な濃度に調整したイソプロピルアルコール水溶液に溶解し、塗布液を得、これをNW−1に塗布し、その後乾燥させる。塗布、乾燥を繰り返し、乾燥後の重量が表2で示す所定の添加量になるよう調整した。得られた不織布を用いて、前記記載のかぶれ評価方法によりかぶれの程度を評価した。結果を表2に示す。
クエン酸(C6):和光純薬工業社製 試薬
オクチル酸(C8):協和発酵ケミカル社製 試薬
ステアリルアルコール(C18):花王社製 商品名 カルコール8098
ドデシルリン酸(C12):竹本油脂社製
ノニオン系界面活性剤
ポリ(オキシエチレン)1,6-ヘキサンジオール・ジラウレート:竹本油脂社製
ポリ(オキシエチレン)ソルビタン三オレイン酸エステル(竹本油脂社製)
Claims (6)
- 融点(Tm)が125〜155℃の範囲にあるプロピレンと、α−オレフィンからなるプロピレン・α−オレフィンランダム共重合体100重量部に対して、疎水性基の炭素数が9以上のリン酸エステル型界面活性剤である酸形態のアニオン系界面活性剤を0.1〜30重量部含むオレフィン系重合体組成物からなる繊維であって、前記酸形態のアニオン系界面活性剤が、繊維に溶融混練されてなる繊維。
- オレフィン系重合体組成物がノニオン系界面活性剤を0.1〜30重量部含む請求項1に記載の繊維。
- 繊維が長繊維である請求項1または2に記載の繊維。
- 請求項3に記載の繊維からなる不織布。
- 請求項4に記載の不織布を、トップシート及び/又はセカンドシートに用いてなる吸収性物品。
- 請求項4に記載の不織布を、吸収体を包むシートに用いてなる吸収性物品。
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US (1) | US20140051313A1 (ja) |
EP (2) | EP2703529B1 (ja) |
JP (2) | JP5819410B2 (ja) |
KR (2) | KR101852243B1 (ja) |
CN (2) | CN103502517A (ja) |
DK (2) | DK2703529T3 (ja) |
MY (1) | MY164756A (ja) |
WO (1) | WO2012147694A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2019173245A (ja) * | 2018-03-29 | 2019-10-10 | 三井化学株式会社 | 不織布 |
JP2021037058A (ja) * | 2019-09-02 | 2021-03-11 | 花王株式会社 | 吸収性物品用伸縮シート、それを有する吸収性物品、及び該吸収性物品用伸縮シートの製造方法 |
JP2021512232A (ja) * | 2018-01-26 | 2021-05-13 | 東レ尖端素材株式会社Toray Advanced Materials Korea Inc. | 吸湿不織布およびその製造方法 |
JP2021126455A (ja) * | 2020-02-17 | 2021-09-02 | 株式会社リブドゥコーポレーション | 吸収性物品 |
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JP6092578B2 (ja) * | 2012-11-07 | 2017-03-08 | 旭化成株式会社 | 弱酸性透水不織布 |
CN104562257B (zh) * | 2015-01-06 | 2016-10-19 | 陈康振 | 一种无纺布或纤维专用的添加剂及其制备方法和无纺布 |
JP6678643B2 (ja) * | 2015-03-04 | 2020-04-08 | ダイワボウホールディングス株式会社 | エアレイド不織布用レーヨン繊維とその製造方法、エアレイド不織布とその製造方法、及び水解紙 |
BR112018016274B1 (pt) * | 2016-03-09 | 2022-11-08 | Fibertex Personal Care A/S | Método para fabricação de um tecido não tecido |
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JP2018117866A (ja) * | 2017-01-25 | 2018-08-02 | 王子ホールディングス株式会社 | 吸収性物品 |
JP6870480B2 (ja) * | 2017-05-30 | 2021-05-12 | 東レ株式会社 | ポリエチレンスパンボンド不織布 |
KR102653795B1 (ko) * | 2018-03-29 | 2024-04-03 | 다우 글로벌 테크놀로지스 엘엘씨 | 이성분 섬유 및 이들의 중합체 조성물 |
CN111485325A (zh) * | 2020-04-16 | 2020-08-04 | 青岛科技大学 | 一种耐高温的抗菌纳米纤维无纺布及其制备方法和用途 |
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- 2012-04-23 WO PCT/JP2012/060867 patent/WO2012147694A1/ja active Application Filing
- 2012-04-23 DK DK18201491.0T patent/DK3456301T3/da active
- 2012-04-23 CN CN201280020328.9A patent/CN103502517A/zh active Pending
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2021512232A (ja) * | 2018-01-26 | 2021-05-13 | 東レ尖端素材株式会社Toray Advanced Materials Korea Inc. | 吸湿不織布およびその製造方法 |
JP7045469B2 (ja) | 2018-01-26 | 2022-03-31 | 東レ尖端素材株式会社 | 吸湿不織布およびその製造方法 |
JP2019173245A (ja) * | 2018-03-29 | 2019-10-10 | 三井化学株式会社 | 不織布 |
JP7048150B2 (ja) | 2018-03-29 | 2022-04-05 | 三井化学株式会社 | 不織布 |
JP2021037058A (ja) * | 2019-09-02 | 2021-03-11 | 花王株式会社 | 吸収性物品用伸縮シート、それを有する吸収性物品、及び該吸収性物品用伸縮シートの製造方法 |
JP7481817B2 (ja) | 2019-09-02 | 2024-05-13 | 花王株式会社 | 吸収性物品用伸縮シート、それを有する吸収性物品、及び該吸収性物品用伸縮シートの製造方法 |
JP2021126455A (ja) * | 2020-02-17 | 2021-09-02 | 株式会社リブドゥコーポレーション | 吸収性物品 |
Also Published As
Publication number | Publication date |
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JP5819410B2 (ja) | 2015-11-24 |
JP5972442B2 (ja) | 2016-08-17 |
KR20130135380A (ko) | 2013-12-10 |
EP3456301B1 (en) | 2020-02-26 |
US20140051313A1 (en) | 2014-02-20 |
EP3456301A1 (en) | 2019-03-20 |
DK3456301T3 (da) | 2020-03-23 |
KR101581521B1 (ko) | 2015-12-30 |
MY164756A (en) | 2018-01-30 |
KR101852243B1 (ko) | 2018-04-25 |
JPWO2012147694A1 (ja) | 2014-07-28 |
CN103502517A (zh) | 2014-01-08 |
EP2703529A1 (en) | 2014-03-05 |
EP2703529A4 (en) | 2014-10-01 |
WO2012147694A1 (ja) | 2012-11-01 |
EP2703529B1 (en) | 2018-12-05 |
DK2703529T3 (en) | 2019-02-11 |
CN107419353A (zh) | 2017-12-01 |
KR20150029768A (ko) | 2015-03-18 |
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