JP4953945B2 - 吸収性物品の個包装体、包装用シートおよび包装用シートの製造方法 - Google Patents
吸収性物品の個包装体、包装用シートおよび包装用シートの製造方法 Download PDFInfo
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- JP4953945B2 JP4953945B2 JP2007174934A JP2007174934A JP4953945B2 JP 4953945 B2 JP4953945 B2 JP 4953945B2 JP 2007174934 A JP2007174934 A JP 2007174934A JP 2007174934 A JP2007174934 A JP 2007174934A JP 4953945 B2 JP4953945 B2 JP 4953945B2
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Description
(第1実施形態)
図1は、本発明の包装用シートの第1実施形態を示す概略図であり、2層積層包装用シート70は、第1繊維層21と第2繊維層22との積層構造となっている。第1繊維層21は、パルプ繊維24と化学繊維25とが交絡した状態で含有しており、これら二種類の繊維は、詳細は後述するが高圧水ジェット流処理にて交絡させることによって得られる。高圧水ジェット流処理にて交絡させることにより、パルプ繊維24と化学繊維25とが再配列して第1繊維層21全体の繊維密度が粗密になるため、見栄えがよく、柔軟性に優れるようになる。
本発明の包装用シートの第2実施形態は、図2に示すように第3繊維層23が第2繊維層22における第1繊維層21と反対側に積層配置されている以外は第1実施形態と同様である。第3繊維層23は、第1繊維層21と同様にパルプ繊維24と化学繊維25とが交絡した状態で含有しており、これら二種類の繊維は、高圧水ジェット流処理にて交絡させることによって得られる。高圧水ジェット流処理にて交絡させることにより、パルプ繊維24と化学繊維25とが再配列して第3繊維層23全体の繊維密度が粗密になるため、見栄えがよく、柔軟性に優れるようになる。
図3および図4は、個包装体1の第1実施形態の概要を示す概略図である。図3および図4に示すように、個包装体1は、陰唇間パッド10と、これを収納する包装体20と、を備えている。なお、説明の便宜上、吸収性物品が陰唇間パッド10の場合について説明するが、これに限定されることはなく、例えば、生理用ナプキンやパンティライナーであってもよい。
本発明の包装用シートの製造方法は、パルプ繊維24と、化学繊維25とから湿式抄紙法により繊維ウェブを形成させ、繊維ウェブの両面または片面に高圧水ジェット流処理を施し、パルプ繊維24と、化学繊維25とを交絡させ第1繊維層21を形成させる工程と、パルプ繊維24と、化学繊維25とから第2繊維層22を形成させる工程と、第1繊維層21を搬送し、第2繊維層22を積層一体化させる工程と、を含むことを特徴とする。
まず、所定の濃度で水に分散した原料液を第1ウェブ形成部30および第2ウェブ形成部40に送り、第1ウェブ31および第2ウェブ41を形成する。なお、第1繊維層21および第2繊維層22を着色させる場合、原料液中にサイズ剤、カチオン系サイズ剤やカチオン染料等を適宜添加させてもよい。
3層積層包装用シート80の製造方法は、第2繊維層22上にさらに第1繊維層21と同一の方法で製造された第3繊維層23をさらに積層させる工程を有する以外は、2層積層包装用シート70の製造方法と同様である。
(第1繊維層の製造)
パルプ繊維24は、NBKP(針葉樹化学パルプ)(CSF720cc)およびNBKP(CSF600cc)を混合して用いた。
パルプ繊維24として、NBKP(CSF600cc)が50%、LBKP(広葉樹化学パルプ)が50%の配合比率の原料スラリーを用いて、乾燥状態の坪量が20.4g/m2となるように円網抄紙法にて第2ウェブ41を製造した。なお、化学繊維25の配合比率は0質量%であった。
実施例1をテンシロン試験機(株式会社エー・アンド・デイ社製)により、サンプル幅25mm、長さ150mm、チャック間隔は100mm、引張速度は100mm/minで乾燥強度を測定した。測定はMD方向およびCD方向に対してそれぞれ行った。なお、乾燥強度は、引っ張り最大強度である。
実施例1にイオン交換水を含水率300%(対基布重量)で含浸させ、密閉容器内で3時間静置後、テンシロン試験機(株式会社エー・アンド・デイ社製)により、サンプル幅25mm、長さ150mm、チャック間隔は100mm、引張速度は100mm/minで湿潤強度を測定した。測定はMD方向およびCD方向に対してそれぞれ行った。なお、湿潤強度は、引っ張り最大強度である。
ろ紙上に実施例1を載置し、実施例1上に試験用ダストを粒径ごとに3mgずつ載せて、ろ紙の下部より30秒間吸引機で吸引する。ろ紙に実施例1を通過した試験用ダストの付着程度を目視にて評価した。この結果、ろ紙に試験用ダストが付着していない場合は「○」、ろ紙を裏返してもダストが落ちない程度の微量の試験用ダストが通過した場合は「△」、ろ紙を裏返すと試験用ダストが落ちる場合は「×」とした。
実施例1の円網側を下側にして試験機(カトーテック株式会社 KES−F8)により通気抵抗値を測定した。5回測定し、その平均値を表1に示した。
サンプル幅300mm、長さ200mmの実施例1を染色物摩擦堅牢度試験機((株)大栄科学精機製作所製)の摩擦面に布テープを付け、布テープの離型面側で200g荷重で5往復させることにより測定した。この結果、毛羽立ちが発生していない場合は「○」、部分的に少量毛羽立ちが発生しているが繊維抜けがない場合は「△」、全体的に毛羽立ちおよび/または繊維抜けが発生している場合は「×」とした。
予め1000mlのフラスコ内に800mlの蒸留水を入れ、蒸留水中に10cm×10cmの正方形の実施例1を投入し、振とう速度240rpmで30分間シェーカー(IWAKI社製 SHKV−200)で振とうさせた。この結果、実施例1が原形を留めないレベルで分散している場合、および実施例1の最大片の大きさが、50cm2以下に分散している場合は「○」、実施例1の最大片の大きさが、50cm2以上である場合は「△」、実施例1が分散せず、原形を留めている場合は「×」とした。
(第1繊維層の製造)
パルプ繊維24は、NBKP(CSF720cc)および合成パルプ(三井化学(株)社製SWP E−400)を混合して用いた。
パルプ繊維24として、NBKP(CSF600cc)が50%、LBKPが50%の配合比率の原料スラリーを用いて、乾燥状態の坪量が20.4g/m2となるように円網抄紙方式にて第2ウェブ41を製造した。なお、化学繊維25の配合比率は0質量%であった。
パルプ繊維24は、NBKP(CSF720cc)および合成パルプ(三井化学(株)社製SWP E−400)を混合して用いた。
第1繊維層21の坪量を21.4g/m2、第2繊維層22の坪量を10g/m2とした以外は、実施例1と同様に製造した。
第1繊維層21を高圧水ジェット流処理にて製造せず、第2繊維層22の坪量を20g/m2とした以外は、実施例1と同様に製造した。
第1繊維層21の坪量を32.5g/m2、第2繊維層22の坪量を31.3g/m2とした以外は、実施例1と同様に製造した。
パルプ繊維24として、NBKP(CSF720cc)を50質量%、繊度が1.1dtexで平均繊維長7mmのレーヨン繊維(ダイワボウレーヨン(株)社製 コロナ)を50質量%の配合比率で繊維原料を調合し、調合時にカチオン染料(CI.Direct Red 81 田岡化学工業(株)社製Sumilight Red 4B)を添加攪拌し、次いで、カチオン系サイズ剤(カチオン性スチレン系樹脂 荒川化学工業(株)社製サイズパインW−360)を添加攪拌したものを原料スラリーとして、実施例1と同様の方法にて第1処理ウェブ33を製造し、そのまま乾燥させ坪量が30g/m2の第1繊維層21のみからなる単層の包装用シートを製造した以外は、実施例1と同様に製造した。
パルプ繊維24として、NBKP(CSF600cc)を50質量%、LBKPを50質量%の配合比率で繊維原料を調合し、実施例1と同様の方法にて第2ウェブ41を製造し、そのまま乾燥させ坪量が20.4g/m2の第2繊維層22のみからなる単層の包装用シートを製造した以外は、実施例1と同様に製造した。結果を表1に示す。
10 陰唇間パッド(吸収性物品)
10a 前端部
10b 後端部
11 周縁部
12 液透過性表面シート
12a 表面シート前端部
12b 表面シート後端部
13 液不透過性裏面シート
13a 裏面シート前端部
13b 裏面シート後端部
14 前庭床当接領域
15 吸収部材
20 包装体
21 第1繊維層
22 第2繊維層
23 第3繊維層
24 パルプ繊維
25 化学繊維
26 開封口
27 開封部
28 エンボスシール
29 止着テープ
30 第1ウェブ形成部
31 第1ウェブ
32 第1高圧水ジェット流処理部
33 第1処理ウェブ
40 第2ウェブ形成部
41 第2ウェブ
42 第1抄き合わせ部
43 湿潤状態の2層積層包装用シート
50 第3ウェブ形成部
51 第3ウェブ
52 第2高圧水ジェット流処理部
53 第3処理ウェブ
54 湿潤状態の3層積層包装用シート
60 乾燥部
70 2層積層包装用シート
80 3層積層包装用シート
90 巻き取り部
Y1 保護領域
k 中心線
Claims (16)
- 少なくとも液保持性の吸収体を有する吸収性物品の包装用シートであって、
パルプ繊維を30質量%から70質量%と、平均繊維長が20mm以下の化学繊維を70質量%から30質量%とを含むと共に、高圧水流処理が施されてなる第1繊維層と、
前記第1繊維層に積層配置され、パルプ繊維を70質量%から100質量%とを含む第2繊維層と、を備え、
800mlの蒸留水中にサンプル片が10cm×10cmの前記包装用シートを投入し、振とう速度240rpmで30分間振とうしたとき、前記包装用シートの最大片の大きさが、50cm 2 以下に分散される包装用シート。 - 前記第2繊維層は、平均繊維長が20mm以下であって繊維径が前記パルプ繊維よりも小さい化学繊維を30質量%以下含む請求項1に記載の包装用シート。
- 前記第2繊維層における前記第1繊維層と反対側に積層配置され、パルプ繊維を30質量%から70質量%と、平均繊維長が20mm以下の化学繊維が70質量%から30質量%とを含むと共に、高圧水流処理が施されてなる第3繊維層と、をさらに備える請求項1または2に記載の包装用シート。
- 前記第1繊維層の坪量が10〜30g/m2であり、前記第2繊維層の坪量が15〜30g/m2であり、該包装用シートの坪量が25〜60g/m2である請求項1から3のいずれかに記載の包装用シート。
- 前記第1繊維層の坪量が10〜30g/m2であり、前記第2繊維層の坪量が15〜30g/m2であり、前記第3繊維層の坪量が10〜30g/m2であり、該包装用シートの坪量が35〜60g/m2である請求項3に記載の包装用シート。
- 前記第1繊維層および/または前記第2繊維層には、坪量を異ならせることにより模様が形成されている請求項1から5のいずれかに記載の包装用シート。
- 前記第1繊維層および/または前記第2繊維層は着色されている請求項1から6のいずれかに記載の包装用シート。
- 前記第1繊維層に着色された色は、前記第2繊維層に着色された色と異なる請求項7に記載の包装用シート。
- 前記第1繊維層、前記第2繊維層または前記第3繊維層のいずれかまたは全部は、サイズ剤を含有し、少なくとも一部に所定の耐水性を有する請求項3または5に記載の包装用シート。
- 少なくとも液保持性の吸収体を有する吸収性物品と、前記吸収性物品を収容する請求項1から9のいずれかに記載の包装用シートからなる包装体と、を有する吸収性物品の個包装体。
- パルプ繊維と、化学繊維とから湿式抄紙法により繊維ウェブを形成させ、前記繊維ウェブの両面または片面に高圧水ジェット流処理を施し、前記パルプ繊維と、前記化学繊維とを交絡させ第1繊維層を形成させる工程と、
パルプ繊維と、化学繊維とから第2繊維層を形成させる工程と、
前記第1繊維層を搬送し、前記第2繊維層を湿潤状態で積層一体化させ、積層一体化後乾燥させる工程と、を含む包装用シートの製造方法。 - さらに、パルプ繊維と、化学繊維とから湿式抄紙法により繊維ウェブを形成させ、前記繊維ウェブの両面または片面に高圧水ジェット流処理を施し、前記パルプ繊維と、前記化学繊維とを交絡させ第3繊維層を形成させる工程と、
前記第1繊維層と、前記第2繊維層とを湿潤状態で積層一体化させた後搬送し、前記第3繊維層を前記第2繊維層の上に湿潤状態で積層一体化し、積層一体化後乾燥させ積層させる工程と、を含む請求項11に記載の包装用シートの製造方法。 - 前記第1繊維層および/または前記第3繊維層を形成させる工程において、前記繊維ウェブを形成させた後、繊維層形成用ワイヤーから模様付与用ワイヤーへ移送し、前記高圧水ジェット流処理を施す請求項11または12に記載の包装用シートの製造方法。
- 前記第1繊維層および/または前記第3繊維層は、短網方式または長網方式で前記繊維ウェブを形成する請求項11から13のいずれかに記載の包装用シートの製造方法。
- 繊維層形成用ワイヤー上で前記高圧水ジェット流処理を施す請求項11、12、14のいずれかに記載の包装用シートの製造方法。
- 前記第2繊維層は、円網方式、またはフォーマー方式で前記繊維ウェブを形成する請求項11から15のいずれかに記載の包装用シートの製造方法。
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JP2007174934A JP4953945B2 (ja) | 2007-07-03 | 2007-07-03 | 吸収性物品の個包装体、包装用シートおよび包装用シートの製造方法 |
PCT/JP2008/061898 WO2009005057A1 (ja) | 2007-07-03 | 2008-07-01 | 吸収性物品の個包装体、包装用シートおよび包装用シートの製造方法 |
US12/667,542 US20120048916A1 (en) | 2007-07-03 | 2008-07-01 | Individual package of absorbent article, wrapping sheet, and method of manufacturing wrapping sheet |
EP08777749.6A EP2163378B1 (en) | 2007-07-03 | 2008-07-01 | Individual package of absorbent article, wrapping sheet, and method of manufacturing wrapping sheet |
KR1020107002046A KR20100040306A (ko) | 2007-07-03 | 2008-07-01 | 흡수성 물품의 개별 포장체, 포장용 시트 및 포장용 시트의 제조 방법 |
MYPI20100016 MY150852A (en) | 2007-07-03 | 2008-07-01 | Individual package of absorbent article, wrapping sheet, and method of manufacturing wrapping sheet |
CN200880101709A CN101778717A (zh) | 2007-07-03 | 2008-07-01 | 吸收性物品的单个包装体、包装用片以及包装用片的制造方法 |
CA2694351A CA2694351A1 (en) | 2007-07-03 | 2008-07-01 | Individual package of absorbent article, wrapping sheet, and method of manufacturing wrapping sheet |
AU2008272104A AU2008272104B9 (en) | 2007-07-03 | 2008-07-01 | Individual package of absorbent article, wrapping sheet, and method of manufacturing wrapping sheet |
TW097125113A TW200908942A (en) | 2007-07-03 | 2008-07-03 | Individual packages of absorbent articles, packaging sheet and process for production of packaging sheet |
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US (1) | US20120048916A1 (ja) |
EP (1) | EP2163378B1 (ja) |
JP (1) | JP4953945B2 (ja) |
KR (1) | KR20100040306A (ja) |
CN (1) | CN101778717A (ja) |
AU (1) | AU2008272104B9 (ja) |
CA (1) | CA2694351A1 (ja) |
MY (1) | MY150852A (ja) |
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JP5475333B2 (ja) * | 2009-06-05 | 2014-04-16 | 大王製紙株式会社 | 吸収性製品 |
JP5755004B2 (ja) * | 2011-03-29 | 2015-07-29 | ユニ・チャーム株式会社 | 水解性防漏シート |
CN103814163A (zh) * | 2011-07-26 | 2014-05-21 | Sca卫生用品公司 | 可冲走的湿擦巾或卫生薄棉纸及其制造方法 |
JP5839920B2 (ja) * | 2011-09-30 | 2016-01-06 | ユニ・チャーム株式会社 | 吸収体及び吸収性物品 |
JP5762235B2 (ja) * | 2011-09-30 | 2015-08-12 | ユニ・チャーム株式会社 | 水崩壊性吸収体及び吸収性物品 |
JP6411066B2 (ja) * | 2014-05-12 | 2018-10-24 | ユニ・チャーム株式会社 | 吸収体用の不織布シートを含む吸収性物品、及び当該吸収性物品に用いられる不織布シートの製造方法 |
TWI521107B (zh) * | 2014-08-01 | 2016-02-11 | 財團法人紡織產業綜合研究所 | 多醣類纖維的製備方法 |
CN106618335A (zh) * | 2015-10-29 | 2017-05-10 | 如皋市利富织造有限公司 | 一种医用油浴巾面料 |
SE539948C2 (en) | 2016-03-18 | 2018-02-06 | The Core Company Ab | ISOSTATIC PRESSURE FORMING OF HEATED DRY CELLULOSE FIBERS |
JP6523412B1 (ja) * | 2017-11-28 | 2019-05-29 | 花王株式会社 | 吸収体及び吸収性物品 |
JP7532039B2 (ja) * | 2020-01-17 | 2024-08-13 | 大王製紙株式会社 | 包装用紙及びその製造方法 |
JP7436222B2 (ja) * | 2020-01-31 | 2024-02-21 | 日本製紙クレシア株式会社 | 吸収性物品の個包装体 |
KR20240088266A (ko) * | 2022-12-13 | 2024-06-20 | 주식회사 마린이노베이션 | 생분해성 시트 및 이를 이용한 식품용기 |
KR20240088281A (ko) * | 2022-12-13 | 2024-06-20 | 주식회사 마린이노베이션 | 수분저항성 생분해성 시트 및 이를 이용한 식품용기 |
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FR2749328B1 (fr) * | 1996-05-31 | 1998-07-17 | Atochem Elf Sa | Collage du papier au moyen de dispersions-latex de copolymeres monomeres hydrophobes/polymeres de type styrene- anhydride maleique a faible masse moleculaire |
US6010001A (en) * | 1997-11-21 | 2000-01-04 | The Procter & Gamble Company | Individual packaging for hygienic wiping |
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US20120048916A1 (en) | 2012-03-01 |
WO2009005057A1 (ja) | 2009-01-08 |
MY150852A (en) | 2014-03-14 |
EP2163378A1 (en) | 2010-03-17 |
KR20100040306A (ko) | 2010-04-19 |
JP2009013521A (ja) | 2009-01-22 |
AU2008272104B9 (en) | 2013-06-20 |
EP2163378B1 (en) | 2017-01-04 |
CN101778717A (zh) | 2010-07-14 |
AU2008272104B2 (en) | 2013-05-30 |
TW200908942A (en) | 2009-03-01 |
EP2163378A4 (en) | 2013-08-28 |
AU2008272104A1 (en) | 2009-01-08 |
CA2694351A1 (en) | 2009-01-08 |
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