CN103298438B - 用于吸收产品的紧固装置 - Google Patents
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Abstract
一种将紧固装置施用至吸收产品的背片的方法,所述背片在使用过程中背离使用者,并与吸收产品的面朝身体侧相反,该方法包括以下步骤:在所述吸收产品的背片上涂覆粘合剂层,并涂覆可膨胀油墨,其中5-95%的所述背片被所述可膨胀油墨覆盖;并且所述吸收产品包括面朝身体侧、使用过程中背离使用者且与所述吸收产品的面朝身体侧相反的背片、以及施用至面朝衣物侧的紧固装置,所述紧固装置包括粘合剂层和可膨胀油墨。
Description
技术领域
本发明涉及一种将紧固装置(fastening means)施用至吸收产品的背片(backsheet)的方法,涉及一种包括该紧固装置的吸收产品,以及可膨胀油墨与粘合剂层组合作为紧固装置的用途。
背景技术
吸收产品,例如卫生护垫、卫生巾和防尿失禁垫通常由压敏粘合剂保持在适当位置,例如以施用在产品的面朝衣物侧上的双面胶带或热熔性粘合剂的形式。粘合剂通过将其粘附在使用者内衣的裆部而将吸收产品保持在适当位置。压敏粘合剂被离型纸(release paper)覆盖,离型纸防止粘合剂在制造、包装和储存过程中的非故意粘合。在将该产品施用至内衣前,使用者必须移除离型纸,因此产生了废物。US 6004308A公开了一种用于卫生巾的粘合附着系统,其包括粘附至压敏粘合剂的非粘性颗粒。EP 0623332A1公开了一种通过将粘合剂放入吸收制品的背片的凹陷处来保护粘合剂的方法。这些方法无需使用离型纸,但是涉及相对复杂的产品制造。
发明内容
本发明的目的是提供一种将紧固装置施用至吸收产品的改进方法,由此避免了在制造、包装和储存过程中对离型纸的需求。借助于本发明,可以在吸收产品上实现通用且灵活的紧固装置。
在本发明的方法中,紧固装置被施用至吸收产品的背片上,背片在使用过程中背离(face away from)使用者,并且与吸收产品面朝身体侧相反。所述方法包括以下步骤:在吸收产品的背片上涂覆粘合剂层,并涂覆可膨胀油墨,可膨胀油墨覆盖所述背片的5-95%。
所述方法可包括干燥所涂覆的油墨的步骤,并且优选包括活化所述可膨胀油墨的步骤,其可通过使所述可膨胀油墨暴露于热量来进行。所述粘合剂可以是压敏热熔性粘合剂,并且如果这样,其可以在100-180℃的温度下涂覆,并且可以在涂覆可膨胀油墨时使所述压敏热熔性粘合剂仍然高于80℃的温度,由此借助于粘合剂的热量实现活化。此外,可膨胀油墨可以通过加热的压花辊、红外辐射、热空气或者微波来活化。如果需要,可膨胀油墨也可替代地通过紫外辐射来活化。可膨胀油墨可仅在选定的区域活化,和/或可涂覆在选定的区域。可膨胀油墨优选地包含聚合物、溶剂和发泡剂或可膨胀微球。
根据本发明的吸收产品包括面朝身体侧,和使用过程中背离使用者的背片,背片与吸收产品面朝身体侧相反。紧固装置被施用至背片上,并包括粘合剂层和可膨胀油墨。有利地是,可膨胀油墨已被活化以形成三维延伸的凸起,从而使吸收产品可以使用。三维延伸的凸起优选具有0.1-8mm,最优选为0.1-3mm的高度。优选5-95%的背片被可膨胀油墨覆盖,更优选为10-60%。
本发明还涉及可膨胀油墨与粘合剂层组合作为用于吸收产品的紧固装置的用途。
附图说明
图1所示为可用于本发明的一种合适的图案;
图2所示为可用于本发明的一种可替代的合适的图案。
具体实施方式
本发明涉及一种将紧固装置施用至吸收产品的方法,并且涉及一种包括该紧固装置的吸收产品,并且涉及可膨胀油墨在用于吸收产品的紧固装置中的用途。当准备使用时,所述紧固装置包括粘合性区域和凸起的非粘合性区域。所述凸起的非粘合性区域起间隔(distance)的作用,可以保护粘合剂不会被非故意的接触,并可以阻止粘合性区域接触任何表面,除非将其压在表面上。由此在制造、包装或储存过程中紧固装置不需要离型片的保护。当吸收产品附着在一个表面上,例如纺织品表面上时,凸起区域起间隔作用,并在最初阻止粘合剂和所述表面之间的接触。由于凸起区域和所述表面之间的摩擦力,吸收产品得以保持在适当位置。当使用者对吸收产品施加朝向表面的压力时,凸起区域将被压缩,和/或表面材料可以在凸起区域周围成褶皱(drape around),最终粘合剂可以与例如女裤或床垫的表面接触,由此实现吸收产品更牢固地紧固。此外,由于通过凸起区域获得的摩擦力,在粘合剂与表面接触前使产品保持在适当位置,可容易地调整所述吸收产品的位置,同时足以使其安全地保持在表面上。
在本发明方法中,将紧固装置施用至吸收产品的背片上。吸收产品可以是例如卫生巾、卫生护垫、防尿失禁垫、尿布、或任何适合穿戴在衣内下的其它吸收产品。吸收产品也可以是床用保护品、座椅保护品或诸如此类,其适于保护床垫或椅子免于潮湿影响。
其上施用紧固装置的背片定义为产品的一侧,其在使用过程中背离使用者,即在吸收产品被穿戴在衣内下的情形中朝向衣物,而在该产品是床用保护品的情形中朝向床垫。在任何情形中,所述背片与吸收产品的面朝身体侧相反。
所述方法包括在吸收产品的背片上涂覆粘合剂层,以及涂覆可膨胀油墨,其中背片的5-95%被可膨胀油墨覆盖。粘合剂可以是压敏热熔性粘合剂。使用压敏热熔性粘合剂的优点是这种粘合剂的粘合性是无限制的。所述粘合剂可在100-180℃的温度下涂覆于背片。
粘合剂可优选以平坦层设置在背片上,或可涂覆于背片上的图案中。粘合剂可通过狭槽技术来涂覆,其中粘合剂可以窄或宽的拉伸体(stretch)涂覆。粘合剂也可以喷涂,其中粘合剂的宽度由喷嘴决定。与狭槽技术相比,采用喷涂技术可使用较少量的粘合剂。
归因于活化,可膨胀油墨可膨胀而变为三维的凸起,这将在下面详细描述。油墨膨胀后得到的该凸起可以是相对柔软且可压缩的,并由此可以很好地作为间隔而提供延迟的附着。
可膨胀油墨可以是本领域技术人员已知的标准配制物,其包括聚合物、溶剂、粘结剂、增稠剂、颜料和发泡剂或包括推进剂的可膨胀微球。所述油墨可通过印刷来涂覆,例如通过丝网印刷、柔版印刷(flexoprint)、喷墨印刷、轮转网印(rotary screen printing)或凹版印刷。由于其稳定性和对油墨中的灰尘和颗粒的不敏感性,通过柔版印刷的涂覆是有利的印刷方法。油墨可以按需和以任何期望的图案涂覆在选定区域。通过印刷,可容易地获得任意期望的凸起图案。例如,可膨胀油墨可在粘合剂表面涂层上以斜纹图案印刷,以使粘合剂设置在各印刷油墨线间的斜纹的狭小空间内,如图1所示。图2所示为另一个印刷图案的示例,其中菱形图案要素被印刷在粘合剂表面涂层上,其间留有交叉的粘合线的网格。可选地,交叉的网格线可替代地由可膨胀油墨印刷,暴露其间的菱形粘合区域。应该理解的是,各种其它印刷图案也适用于本发明。
涂覆于吸收产品背片的可膨胀油墨的量可取决于油墨的组成、期望的图案或油墨活化后期望的凸起高度。所需的油墨量也基于表面吸收性而变化。本领域技术人员可通过常规实验得出实现所期望表面的所需油墨量。
在吸收产品上涂覆油墨后,可使任何溶剂蒸发,从而使油墨几乎瞬间干燥。
如上所述,可膨胀油墨可被活化以获得期望的效果。在活化过程中,油墨的成分由于发泡剂或微球的作用而膨胀,从而使涂覆的油墨变为三维结构,其从吸收产品的背片表面凸起。活化可作为在吸收产品上施用紧固装置的方法中的一个步骤来进行,从而有效地获得在吸收产品上准备用于使用的紧固装置。
活化可通过将可膨胀油墨暴露于热量来进行,优选通过红外辐射、热空气或微波。这些加热方法使得能够有灵活通用的加热,这将使可膨胀油墨有效的活化。可选地,油墨可接触经加热的表面,例如压花辊。活化温度取决于涂覆的油墨量和所用油墨的类型,并且通常为80-180℃,优选100-180℃。
当粘合剂是热熔性粘合剂,并在可膨胀油墨的活化温度或之上对其进行涂覆时,可有利地涂覆油墨在热熔性粘合剂上,同时其仍然在活化温度或之上。例如,如果热熔性粘合剂在100-180℃的温度下涂覆,可以涂覆可膨胀油墨,同时使热熔性粘合剂仍然在80℃之上的温度下。从而,油墨在一个步骤中印刷和活化,其使用热熔性粘合剂的热量来活化。因为无需用于向可膨胀油墨供应热量的设备,这增加了能量效率和工艺速度。
如果可膨胀油墨是一种可被紫外辐射活化的类型,则活化可替代地通过紫外辐射来进行,这特别在热敏材料被用于吸收产品中时是有利的。
当期望获得凸起区域的图案时,可膨胀油墨可被活化以仅在选定区域获得膨胀,而留下其它区域未膨胀。这可以通过遮盖不需要活化的区域,或通过将热量或紫外辐射仅对着待活化的区域来进行,例如通过使用定向射线。也可使用热压花。通过仅在选定区域活化油墨,可实现在具有以相同图案涂覆油墨的吸收产品的背片上不同凸起图案的产生。
例如当期望提供具有四周围(all-round)紧固装置的吸收产品时,单独地进行可膨胀油墨的活化可以是有利的,该吸收产品可在后面的阶段适于附着至不同类型的表面。上面描述的用于在线活化的活化方法当然也可在后面的阶段中使用。
活化后,三维凸起可以是柔软且可压缩的,从而它们可以起间隔作用,但也可以在需要时被压缩,以允许粘合性区域与吸收产品将附着的表面相接触。
本发明方法可以在设备中进行,所述设备设置用于进行粘合剂和可膨胀油墨的涂覆;油墨的活化(如果在方法中包括)的步骤,从而使得可通过流水线生产中的每个步骤提供吸收产品的坯体(blank),例如通过在传送带上布置分散的吸收产品坯体,输送经过所述方法的每个步骤。
本发明还涉及具有通过上述方法可获得的紧固装置的吸收产品。所述吸收产品可包括无纺织物、薄膜或它们的层压体的面朝身体侧,和不可渗透液体的聚合薄膜材料的背片,和包括纸浆和/或高吸收性材料和/或纤维网的吸收层。背片材料可以是透气性或非透气性的。在使用过程中背片背离使用者,并与吸收产品的面朝身体侧相反。施用在背片上的紧固装置包括粘合剂层和可膨胀油墨。
当准备使用时可膨胀油墨已被活化,从而形成三维延伸的凸起,其具有上文描述的特点。所述三维延伸的凸起优选具有0.1-8mm的高度,以便获得足够的对表面的摩擦粘合性。当吸收产品是卫生巾或卫生护垫时,凸起的高度可以是0.1-3mm。床上用片(bed sheet)可具有更高的凸起,其可达到8mm,这是因为基于使用者的重量,其对床上用片施加的压力更高。
在紧固装置中,背片的表面区域的5-95%被可膨胀油墨覆盖,可膨胀油墨留有暴露的粘合剂区域,从而允许吸收产品在其待附着的表面上进行初始调节,并确保通过粘合剂最终附着在该表面上。优选地,背片的10-60%可被可膨胀油墨覆盖,且背片的40-90%可被粘合剂覆盖。因此,暴露足够的粘合剂以确保吸收产品对于吸收产品将附着的表面的粘合性。同时,向背片涂覆一定量的油墨以初始地在表面和背片之间产生足够间距,以便允许在表面上调节吸收产品的位置。此外,膨胀时的油墨可消除使用前在吸收产品上的离型片的需求。
本发明还涉及可膨胀油墨与粘合剂层组合作为用于吸收产品的紧固装置的用途。上文描述的与方法和吸收产品有关的所有细节和步骤也与该用途相关。
Claims (17)
1.一种将紧固装置施用至吸收产品的背片的方法,所述背片在使用过程中背离使用者,并与吸收产品的面朝身体侧相反,其特征在于所述方法包括以下步骤:
-在所述吸收产品的背片上涂覆粘合剂层,和
-涂覆可膨胀油墨,其中所述背片的5-95%被所述可膨胀油墨覆盖。
2.权利要求1的方法,其中所述背片的10-60%被所述可膨胀油墨覆盖。
3.权利要求1或2的方法,其还包括活化所述可膨胀油墨的步骤。
4.权利要求3的方法,其中所述活化步骤通过将所述可膨胀油墨暴露于热量来进行。
5.权利要求1或2的方法,其中所述粘合剂是压敏热熔性粘合剂。
6.权利要求5的方法,其中所述压敏热熔性粘合剂在100-180℃的温度下涂覆,并且在涂覆所述可膨胀油墨时所述压敏热熔性粘合剂仍然在高于80℃的温度下。
7.权利要求4的方法,其中所述可膨胀油墨通过红外线、热空气、微波进行活化。
8.权利要求3的方法,其中所述可膨胀油墨通过紫外辐射进行活化。
9.权利要求3的方法,其中所述可膨胀油墨仅在选定区域被活化。
10.权利要求3的方法,其中所述可膨胀油墨在选定区域中涂覆。
11.权利要求3的方法,其中所述可膨胀油墨包括聚合物、溶剂和发泡剂或可膨胀微球。
12.一种吸收产品,其包括面朝身体侧、使用过程中背离使用者且与吸收产品的面朝身体侧相反的背片、以及施用至所述背片上的紧固装置,其特征在于所述紧固装置包括粘合剂层和可膨胀油墨。
13.权利要求12的吸收产品,其中所述可膨胀油墨已被活化从而形成三维延伸的凸起。
14.权利要求13所述的吸收产品,其中所述三维延伸的凸起具有0.1-8mm的高度。
15.权利要求12-14中任一项的吸收产品,其中所述背片的5-95%被所述可膨胀油墨覆盖。
16.权利要求14的吸收产品,其中所述三维延伸的凸起具有0.1-3mm的高度。
17.权利要求15的吸收产品,其中所述背片的10-60%被所述可膨胀油墨覆盖。
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PCT/SE2010/051373 WO2012082027A1 (en) | 2010-12-13 | 2010-12-13 | Fastening means for an absorbent product |
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EP (1) | EP2651362B1 (zh) |
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AU (1) | AU2010365436B2 (zh) |
BR (1) | BR112013014699A2 (zh) |
MX (1) | MX340139B (zh) |
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US8987544B2 (en) | 2010-12-17 | 2015-03-24 | Kimberly-Clark Worldwide, Inc. | Article with heat-activatable expandable structures |
US8740869B2 (en) * | 2011-03-11 | 2014-06-03 | Kimberly-Clark Worldwide, Inc. | Personal care articles with tactile visual cues |
EP3490723A4 (en) * | 2016-07-26 | 2020-03-18 | Berry film Products company, Inc. | PROFILED THERMOPLASTIC FILMS |
MX2019002690A (es) * | 2016-09-30 | 2019-07-08 | Kimberly Clark Co | Articulo de limpieza que tiene una textura estampada. |
WO2019018839A1 (en) * | 2017-07-21 | 2019-01-24 | Zephyros, Inc. | COATED SEALING DEVICES |
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- 2010-12-13 RU RU2013132204/12A patent/RU2530798C1/ru not_active IP Right Cessation
- 2010-12-13 AU AU2010365436A patent/AU2010365436B2/en not_active Ceased
- 2010-12-13 MX MX2013006687A patent/MX340139B/es active IP Right Grant
- 2010-12-13 EP EP10860840.7A patent/EP2651362B1/en not_active Not-in-force
- 2010-12-13 US US13/993,517 patent/US20130261590A1/en not_active Abandoned
- 2010-12-13 WO PCT/SE2010/051373 patent/WO2012082027A1/en active Application Filing
- 2010-12-13 CN CN201080070648.6A patent/CN103298438B/zh not_active Expired - Fee Related
- 2010-12-13 BR BR112013014699A patent/BR112013014699A2/pt not_active IP Right Cessation
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EP2651362B1 (en) | 2016-08-10 |
US20130261590A1 (en) | 2013-10-03 |
RU2530798C1 (ru) | 2014-10-10 |
EP2651362A4 (en) | 2015-07-15 |
CN103298438A (zh) | 2013-09-11 |
JP5968333B2 (ja) | 2016-08-10 |
MX2013006687A (es) | 2013-07-29 |
SA111320838B1 (ar) | 2014-09-02 |
AU2010365436A1 (en) | 2013-07-04 |
WO2012082027A1 (en) | 2012-06-21 |
JP2013545581A (ja) | 2013-12-26 |
EP2651362A1 (en) | 2013-10-23 |
MX340139B (es) | 2016-06-28 |
BR112013014699A2 (pt) | 2016-10-04 |
AU2010365436B2 (en) | 2016-01-14 |
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