CN101553198B - 吸收性穿着物品及其制造方法 - Google Patents

吸收性穿着物品及其制造方法 Download PDF

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CN101553198B
CN101553198B CN2007800445446A CN200780044544A CN101553198B CN 101553198 B CN101553198 B CN 101553198B CN 2007800445446 A CN2007800445446 A CN 2007800445446A CN 200780044544 A CN200780044544 A CN 200780044544A CN 101553198 B CN101553198 B CN 101553198B
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egative film
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大坪俊文
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Abstract

本发明提供从吸收体朝向外气的透气性好、不影响印刷的图案、文字的辨认性的吸收性穿着物品及其制造方法。吸收性穿着物品包含具有透气性的不透液性的底片(2)、和接合在底片(2)上的液体保持性的吸收体(3)。底片(2)的、与接合着吸收体(3)的面的相反侧面上，重合地接合着外面片(5)，该外面片(5)具有相互平行地延伸的弹性部件(4)。在外面片(5)上，间歇地接合着伸长状态下的弹性部件(4)，并且，在与吸收体(3)相向的部分形成了开孔(7)。弹性部件(4)在伸长状态下从开孔(7)的开孔边缘(8)朝着远离吸收体(3)的方向延伸。底片(2)露出于开孔(7)。

Description

吸收性穿着物品及其制造方法
技术领域
本发明涉及吸收性穿着物品，特别涉及从使用者的腹部到背侧具有弹性部件(下面有时称为贴合褶裥)的吸收性穿着物品及其制造方法。
背景技术
为了提高对使用者腰围的贴合性，从使用者的腹部到背侧设有贴合褶裥的吸收性穿着物品是已知的。
例如，专利文献1公开了如下吸收性物品，备有透液性表面片、不透液性背面片、和夹在该两片之间的液体保持性的吸收体，具有腹侧部、背侧部和裆下部，在腹侧部和/或背侧部的宽度方向，以预定间隔配设着若干个腰围部弹性部件(贴合褶裥)，其中该腰围部弹性部件在吸收体存在的部位不具有弹性伸缩性，在吸收体的两侧边外方，由第1固定机构固定在吸收性物品的构成部件上、具有弹性伸缩性；该腰围部弹性部件，在不具有弹性伸缩性的部分与具有弹性伸缩性的部分的交界部附近，由第2固定机构固定在吸收性物品的构成部件上。
专利文献1：日本特开2002-95692号公报(权利要求1，第0033～0035段，图2、图3)。
根据专利文献1的吸收性物品，腰围部弹性部件粘接在两张片材之间，可自由地决定腰围部弹性部件的伸长应力、其配设拉伸率，不会产生腰围的柔软性恶化、对肌肤的刺激等的问题，可提供能提高贴合性、吸收性能、防漏性能的一次性尿布等吸收性物品。
发明内容
但是，在专利文献1公开的技术中，在吸收体存在的部位，腰围部弹性部件没有粘接在两张片材之间，为了不具有弹性伸缩性而被切断，在不具有弹性伸缩性的部分与具有弹性伸缩性的部分的交界部附近固定在吸收性物品的构成部件上。在该构造中，不具有弹性伸缩性部分的腰围部弹性部件，在两张片材之间收缩而变短。另一方面，两张片材不收缩地留在吸收体上，覆盖着吸收体。
因此，存在由于被两张片材覆盖着而有损于从吸收体朝向外气的透气性的问题。另外，在吸收性穿着物品的腹侧和背侧有时印刷着图案、文字等，但是，由于有两张片材，所以不容易看见这些图案、文字。
为了解决该现有技术的问题，本发明以具有贴合褶裥的吸收性穿着物品为对象，提供从吸收体朝向外气的透气性好、不影响印刷的图案、文字的辨认性的吸收性穿着物品及其制造方法。
为了解决上述问题，本发明以包含具有透气性的不透液性第一底片和配置在第一底片上的液体保持性吸收体的吸收性穿着物品为前提。
在该前提下，本发明的吸收性穿着物品的特征是，在第一底片的、与接合着吸收体的面的相反侧面上，重合地接合着具有弹性部件的、面积比第一底片的面积大的外面片，在外面片上，间歇地接合着伸长状态下的弹性部件，并且，在与吸收体相向的部分形成了开孔，弹性部件在伸长状态下从开孔的开孔边缘朝着远离吸收体侧缘的侧方伸出，第一底片露出于开孔。
另外，本发明的吸收性穿着物品的制造方法的特征是，包含以下工序；一边把连续弹性部件朝着与机械方向平行的方向连续地供给到朝上述机械方向连续地供给的连续外面片上，一边将连续弹性部件在伸长状态下间歇地接合到连续外面片上；在配置着连续弹性部件的连续外面片上，在与上述机械方向正交的方向切开切口，将连续弹性部件的至少一部分切断；覆盖由连续弹性部件的收缩使切口张开而形成的开孔，将吸收体的第一底片侧接合在连续外面片上。
在本发明中，具有弹性部件(贴合褶裥)的外面片在与吸收体相向的部分形成了开孔，由于吸收体的第一底片露出于该开孔，所以，第一底片直接暴露在外气中。这样，可提供从吸收体朝向外气的透气性好的吸收性穿着物品。另外，由于第一底片露出，所以，若在其上印刷图案、文字，则不影响其辨认性。
附图说明
图1是将尿布展开成平面的图。
图2是表示沿弹性部件将尿布剖切的剖面的示意图。
图3是说明尿布制造方法的示意图。
具体实施方式
下面，参照附图以本发明的吸收性穿着物品为尿布1的情况为例进行说明。图1是将尿布1展开成平面时从外侧、即从与使用者肌肤接触侧的相反侧看的平面图，图2是沿图1中的II-II线剖切的剖面图。
尿布1展开成平面时，是关于中心线M对称的形状，与中心线M正交地依次划分为前腰围区域11、裆下区域12和后腰围区域13。图1中，可看见形成了开孔7的外面片5、和从开孔7露出的第一底片2。
第一底片2比外面片5小，在其里侧接合着面积比第一底片2小的吸收体3。在外面片5的前腰围区域11和后腰围区域13的里侧，弹性部件4在伸长状态下朝着与中心线M正交的方向延伸，该弹性部件4是由用于提高对使用者腰围的贴合性的若干个橡胶绳构成的。
开孔7从前腰围区域11经过裆下区域12一直形成到后腰围区域13。与第一底片2接合着的吸收体3，也是从前腰围区域11一直设置到后腰围区域13，并覆盖着开孔7。位于吸收体3侧方的弹性部件4，在伸长状态下从开孔7的开孔边缘8延伸到远离吸收体3侧缘的侧方。另外，第一底片2和印刷在第一底片2上的图案15露出于开孔7。虽然未图示，开孔7也可以有若干个，只要不遮住图案15即可。
图2是示意地表示沿图1的II-II线、即沿着弹性部件4将尿布1剖切时的剖面的图。
尿布1的外面片5由第二底片5A和外装片5B构成。弹性部件4以伸长的状态夹在两者之间，用热熔粘接剂HM间歇地接合着。吸收体3经由第一底片2，用热熔粘接剂HM接合在构成外面片5的第二底片5A上。
第一底片2、第二底片5A、外装片5B是具有透气性、液阻挡性或不透液性的片，外装片5B位于尿布1的外侧。在第二底片5A和吸收体3上，重叠接合着朝向使用者的肌肤面的透液性顶片14。顶片14用热熔粘接剂HM间歇地接合在吸收体3上。在顶片14上，虽然设有防漏壁、贴合使用者的腰围、腿围用的橡胶等图未示的公知部件，但其详细说明从略。
将第一底片2与第二底片5A接合时，以包围开孔7的方式接合，以便尿等排泄物不从两者的间隙中漏出。这时，优选把开孔7的开孔边缘8的全周接合在第一底片2上。另外，开孔7的面积小于吸收体3的面积。这时，优选以开孔7的开孔边缘8只留下接合所需的宽度地尽量靠近吸收体3的周缘的方式形成开孔7，以增大开孔面积。
从图2可知，弹性部件4在伸长状态下一直延伸到开孔7的开孔边缘8。因此，较之在第二底片5A与外装片5B之间被切断了的弹性部件4在该两张片材之间收缩而变短的情况，可以加大开孔7。这样，接合着吸收体3的第一底片2从开孔7露出，不被外面片5遮挡，可加大与外气接触的面积，所以，吸收体3对外气的透气性好，另外，也不遮住印刷在第一底片2上的图案15，不有损于辨认性(见图1)。
另外，弹性部件4在伸长状态下从开孔边缘8朝着远离吸收体3的方向延伸，优选朝着与中心线M正交的外侧方延伸，所以，第一底片2本身当然也通过该片朝着使吸收体3张紧的方向张拉。这样，可以防止在第一底片2上产生折皱而破坏图案15的形状、有损美观，同时，可以防止在吸收体3上产生折皱而使尿等排泄物漏出。但是，在本发明中，只要至少在显示图案15的第一底片2上不产生折皱即可，所以，该片和吸收体3并不一定非以直接接合为条件。但是，即使不直接接合，吸收体3优选也与顶片14和/或第二底片5A接合。
图3是表示本发明尿布1的制造方法的示意图。
该制造方法，包含如下工序：一边把由若干个橡胶绳构成的连续弹性部件40，朝着与机械方向MD平行的方向，连续地供给到朝机械方向MD连续供给的连续外面片50上，一边将连续弹性部件40在伸长状态下间歇地接合到上述连续外面片50上；在接合着连续弹性部件40的连续外面片50上，在与机械方向MD正交的方向切开切口20，将连续弹性部件40的至少一部分切断；覆盖住因切口20张开而形成的开孔7地、将吸收体3的第一底片2侧接合到连续外面片50上。
用该制造方法得到的尿布1的中心线M，与机械方向MD正交。另外，接合着吸收体3的连续外面片50，在后工序中，接合了位于使用者肌肤侧的顶片14(在机械方向MD上连续)等(图3中未示出)后，被切断成单体而成为最终产品的尿布1。
在该制造方法中，先把伸长状态下的连续弹性部件40，连续地供给并接合到连续外面片50上的、作为尿布1的前腰围区域11和后腰围区域13的部分。连续外面片50由连续第二底片50A、和与其重叠接合着的连续外装片50B构成。连续弹性部件40被供给到连续第二底片50A与连续外装片50B之间。连续弹性部件40与连续外面片50的接合，是用第1粘接装置23把热熔粘接剂HM间歇地涂敷在连续外装片50B上(图未示)，再将连续弹性部件4和连续第二底片50A重叠在该连续外装片50B上而完成的。另外，连续第二底片50A和连续外装片50B的卷绕片材，分别从各卷状件150A、150B供给。
接着，用切断装置24，在与中心线M平行的方向，从前腰围区域11到后腰围区域13切开直线状的切口20。经过该操作，连续弹性部件40的至少一部分被切断，相邻切口20之间的连续弹性部件40与连续外面片50一起收缩，结果，形成了开孔7。
这时，连续外面片50由于受到与机械方向MD平行方向的拉力，所以，相邻切口20之间的连续弹性部件40不能完全收缩，而处于伸长的状态。
通过适当地选择所供给的连续弹性部件40的伸长度、作用在连续外面片50上的拉力等，可以调节开孔7的形状。另外，切口20也可以不是直线状地切开形成，而对连续外面片50冲孔来形成切口20，这样也可以调节开孔7的形状。如前所述，由开孔7的开孔边缘8划分的面积比吸收体3的面积小，但是，优选调整为使开孔边缘8尽量靠近吸收体3的周缘、使开孔面积增大。
接着，为了覆盖开孔7，把接合在吸收体3上的第一底片2，通过热熔粘接剂HM接合到连续第二底片50A上。
吸收体3和第一底片2在别的工序接合，以切断成单体前的卷状物状态供给。接合着第一底片2的吸收体3被吸收体切断装置25切断成单体，由第2粘接装置26把热熔粘接剂HM涂敷到第二底片2的、在与机械方向MD正交的方向延伸的两侧缘27上。另外，在第一底片2上，可以预先印刷图案15、文字(图未示)等。
当以覆盖开孔7的方式接合吸收体3时，涂敷在第一底片2的两侧缘27上的热熔粘接剂HM将开孔7的开孔边缘8定位固定，从而保持着开孔状态，也保持着连续弹性部件40的伸长状态。
这里，当开孔7的开孔边缘8与第一底片2之间有间隙时，可以设置将吸收体3接合到连续第二底片50A上后、用热封等的热熔接来接合的工序。
或者，也可以设置涂敷工序，该涂敷工序是在切开切口20前，沿着要切开切口20的部位，把热熔粘接剂HM涂敷在包括与机械方向MD正交的方向成分的方向。具体地说，在形成切口20的部位的两侧、即成为开孔边缘8的部分，预先涂敷热熔粘接剂HM。该工序可以在切断装置24的上游侧(与机械方向MD相反的方向)设置图未示的第3粘接装置来进行。这时，为了不使热熔粘接剂HM成为切开切口20的工序的障碍，优选少量地涂敷热熔粘接剂HM。热熔粘接剂HM的合适的涂敷量可根据实验决定，例如可以是1～3g/m2。
这样，沿着开孔7的开孔边缘8、在热熔粘接剂HM延伸的状态下接合第一底片2，可以定位固定开孔边缘8。这样，在后工序中也可以削减或省略掉涂敷在第一底片2上的热熔粘接剂HM。
另外，连续背面片50A、连续外装片50B、第一底片2等，可以适当选择采用以热可塑性树脂为原料的无纺布、薄膜、透气性薄膜等、在该领域中公知的材料。另外，这些片、连续弹性部件40的接合，除了采用热熔粘接剂HM外，也可以用热熔接来接合。用热熔粘接剂HM接合时，涂敷图案没有特别限定，可以从带状、螺旋状、点状等公知的图案中适当选择。另外，切开切口20时，例如可以采用回转冲切刀、热封切刀、超声波切刀、水流喷射切削装置等公知的切断机构。
另外，连续弹性部件40也可以不由若干个橡胶绳构成，而由具有弹性的一片塑料薄膜、具有伸缩性的无纺布构成。这时，可以把连续外面片50的开孔边缘8，与作为连续弹性部件40的一片无纺布等一起，用热熔接、热熔粘接剂HM接合在第一底片2上。这样，较之用若干橡胶绳构成的情况，在用一片无纺布等构成弹性部件4时，弹性部件4收缩时，不容易从与开孔边缘8接合的接合部分脱落。
根据上面说明的尿布1的制造方法，可以得到如下的尿布1，其中，具有连续弹性部件40的连续外面片50在与吸收体3相向的部分形成了开孔7，吸收体3的第一底片2从该开孔7中露出。由于形成了开孔7，所以，接合在吸收体3上的第一底片2直接暴露在外气中，可提供从吸收体3朝向外气的透气性好的尿布1。另外，由于第一底片2露出，所以，如果把图案15、文字印刷在其上面，可以不有损于辨认性。
另外，在该制造方法中，在连续外面片50上切开切口20时，受到拉力的连续外面片50被朝着与机械方向MD平行的方向张拉。换言之，连续外面片50，在最终产品的尿布1的宽度方向扩张。因此，从卷状件供给卷绕片材的阶段的尿布1的宽度方向(与机械方向MD相同的方向)的尺寸可以比最终产品的尺寸小。因此，使从卷状件供给的速度最大化时，与不切开切口20时相比，可以提高生产速度，降低制造成本。
另外，可以沿中心线M切开若干个切口20。例如，若切开沿中心线M分离的2个切口20而形成2个开孔7，连续外面片50的、沿机械方向MD连续的部分增多，这样，连续外面片50的移动稳定，容易操作。

Claims (10)

1.吸收性穿着物品，包括具有透气性的不透液性的第一底片、和配置在上述第一底片上的液体保持性的吸收体，其特征在于，
上述第一底片的、与接合着上述吸收体的面相反侧的面上，重叠接合着具有弹性部件的、面积比上述第一底片的面积大的外面片；
在上述外面片上，间歇地接含着伸长状态下的上述弹性部件，并且，在与上述吸收体相向的部分形成了开孔；
上述弹性部件，在伸长的状态下，从上述开孔的开孔边缘伸出到远离上述吸收体侧缘的侧方；
上述第一底片露出于上述开孔。
2.如权利要求1所述的吸收性穿着物品，其特征在于，
上述吸收性穿着物品展开成平面时，是关于中心线对称的形状；
与上述中心线正交地、依次划分为前腰围区域、裆下区域和后腰围区域；
上述外面片的上述开孔从上述前腰围区域一直形成到上述后腰围区域；
上述吸收体从上述前腰围区域一直到上述后腰围区域覆盖着上述开孔；
上述弹性部件，在上述前腰围区域和上述后腰围区域中，在伸长状态下沿着与上述中心线大致正交的方向延伸。
3.如权利要求1或2所述的吸收性穿着物品，其特征在于，上述外面片的上述开孔边缘与上述第一底片接合着。
4.如权利要求1或2所述的吸收性穿着物品，其特征在于，
上述外面片，由与上述第一底片接合着的第二底片、和与上述第二底片重合接合着的外装片构成；
上述弹性部件夹在上述第二底片与上述外装片之间。
5.如权利要求1或2所述的吸收性穿着物品，其特征在于，设有若干个上述开孔。
6.吸收性穿着物品的制造方法，该吸收性穿着物品包括具有透气性的不透液性的第一底片、和配置在上述第一底片上的液体保持性的吸收体，其特征在于，包含以下工序；
一边把连续弹性部件朝着与机械方向平行的方向连续地供给到朝上述机械方向连续地供给的连续外面片上，一边将连续弹性部件在伸长状态下间歇地接合到上述连续外面片上；
在配置着上述连续弹性部件的上述连续外面片上，在与上述机械方向正交的方向切开切口，将上述连续弹性部件的至少一部分切断；
覆盖由上述连续弹性部件的收缩使上述切口张开而形成的开孔，将上述吸收体的第一底片侧接合在上述连续外面片上。
7.如权利要求6所述的吸收性穿着物品的制造方法，其特征在于，
上述吸收性穿着物品展开成平面时，是关于中心线对称的形状；
与上述中心线正交地、依次划分为前腰围区域、裆下区域和后腰围区域；
上述中心线与上述连续外面片的上述机械方向正交，对上述前腰围区域和上述后腰围区域供给上述连续弹性部件；
在与上述中心线平行的方向，从上述前腰围区域到上述后腰围区域，切开上述切口；
从上述前腰围区域到上述后腰围区域，将上述吸收体的第一底片侧以覆盖上述开孔的方式接合到上述连续外面片上。
8.如权利要求6或7所述的吸收性穿着物品的制造方法，其特征在于，在上述连续外面片上切开切口的工序之前，包括沿着要切开上述切口的部位、在与上述机械方向正交的方向涂敷热熔粘接剂的工序。
9.如权利要求6或7所述的吸收性穿着物品的制造方法，其特征在于，
上述连续外面片，由与上述第一底片接合着的连续第二底片、和重合接合在上述连续第二底片上的连续外装片构成；
把上述连续弹性部件接合在上述连续第二底片与上述连续外装片之间；
把上述吸收体的第一底片侧接合在上述连续第二底片上。
10.如权利要求6或7所述的吸收性穿着物品的制造方法，其特征在于，切出沿着与上述机械方向正交的方向分离的若干个切口。
CN2007800445446A 2006-12-01 2007-11-02 吸收性穿着物品及其制造方法 Expired - Fee Related CN101553198B (zh)

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US8865963B2 (en) * 2008-03-18 2014-10-21 Ron Rothenberger Absorbent article having visible indicia and method of making the same
JP5186331B2 (ja) * 2008-10-10 2013-04-17 ユニ・チャーム株式会社 吸収性物品
DE102010029360A1 (de) * 2009-09-30 2011-03-31 Robert Bosch Gmbh Vorrichtung und Verfahren zum Formen, Füllen und Verschließen von jeweils eine Außgießeinrichtung aufweisenden Beuteln
CN102883696B (zh) * 2010-07-26 2014-07-30 株式会社瑞光 一次性穿戴用物品及其制造方法
CN103189028B (zh) * 2010-11-18 2015-01-21 株式会社瑞光 一次性穿戴物品的制造方法
JP5754986B2 (ja) * 2011-03-02 2015-07-29 ユニ・チャーム株式会社 使い捨ておむつ
JP5863359B2 (ja) * 2011-09-22 2016-02-16 ユニ・チャーム株式会社 吸収性物品
JP5291238B1 (ja) * 2012-11-27 2013-09-18 ユニ・チャーム株式会社 使い捨ておむつ
US9731489B2 (en) * 2013-05-29 2017-08-15 H.B. Fuller Company Material application system
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CN105250080B (zh) * 2015-11-05 2018-06-08 杭州可艾个人护理用品有限公司 一种婴儿纸尿裤
RU2694424C1 (ru) 2016-05-10 2019-07-12 Эссити Хайджин Энд Хелт Актиеболаг Пригодное для ношения одноразовое впитывающее изделие

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AU2007326685B2 (en) 2013-05-02
WO2008065854A1 (fr) 2008-06-05
BRPI0717706A2 (pt) 2013-10-22
CA2670606A1 (en) 2008-06-05
CN101553198A (zh) 2009-10-07
MX289418B (es) 2011-08-16
JP4890216B2 (ja) 2012-03-07
EA200900756A1 (ru) 2009-12-30
MA31034B1 (fr) 2009-12-01
KR101246415B1 (ko) 2013-03-21
MY148129A (en) 2013-02-28
US8057451B2 (en) 2011-11-15
TW200838483A (en) 2008-10-01
EA015291B1 (ru) 2011-06-30
EP2087869A1 (en) 2009-08-12
EG25715A (en) 2012-06-06
MX2009005711A (es) 2009-06-08
US20080132871A1 (en) 2008-06-05
CO6220897A2 (es) 2010-11-19
US8349117B2 (en) 2013-01-08
US20100276070A1 (en) 2010-11-04
KR20090084933A (ko) 2009-08-05

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