CN106696409A - 用于卫生产品、特别是卫生巾的多层包装膜 - Google Patents
用于卫生产品、特别是卫生巾的多层包装膜 Download PDFInfo
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Abstract
本发明涉及一种用于卫生产品、特别是卫生巾(1)的多层包装膜(2),所述多层包装膜具有第一外层(6)、第二外层(7)以及在所述第一外层(6)和所述第二外层(7)之间的附着粘合剂层,其中,在所述附着粘合剂层和所述第一外层(6)之间的复合附着大于在所述附着粘合剂层和所述第二外层(7)之间的复合附着,并且其中,所述第一外层(6)和所述第二外层(7)以及设置在它们之间的所述附着粘合剂层的总厚度处于20μm至80μm之间。
Description
技术领域
本发明涉及一种用于卫生产品、特别是卫生巾的多层包装膜。此外,本发明的主题是一种单独包装的卫生巾。
背景技术
包装膜就放平状态而言延伸超过卫生巾。于是,在制造时沿卫生巾的纵向观察,各端部依次折叠,从而得到三层构造,其中,卫生巾的各端部分别由包装膜保护地转向卫生巾的中间区段上。固定可以通过侧向的压制部和密封部和/或粘贴条进行。
对应的包装膜和因此单独包装的卫生巾由EP 0 532 649 B2和EP 0 639 147 B2已知。
从在现有技术中描述的构造方案出发,在实际中使用这样的包装膜,所述包装膜具有仅16μm的总厚度、三层地共挤压并且在其面对卫生巾的那侧上设有硅树脂涂层。通常已知的包装膜也被染色,为此,可以设置有白色批次或其他颜色批次。此外,所述薄膜也可以印花、压花或设有缺口。
仅一个非常薄的薄膜可能被使用者视为低价值的,其中,该印象可以通过压花在一定程度上得到抑制。该问题是特别显著的,因为出于材料节省的目的,还争取达到例如13μm至14μm的较小的薄膜厚度。
为了提供单独包装的卫生巾,包装膜的幅面被输送并且在设有硅树脂涂层的那侧上设有热熔的附着粘合剂,所述附着粘合剂例如在160℃至180℃的温度中施加。该温度负荷也可能恰好在薄膜非常薄时导致不希望的变形。
附着粘合剂的涂覆仅局部地进行,其中,然后各个卫生巾通过附着粘合剂使用。通过硅树脂涂层保证,随后附着粘合剂保留在卫生巾的下侧上,并且可以可靠地与包装膜分开。
适宜地,各个卫生巾横向于生产方向地放置,其中,然后包装膜的边缘以及放在包装膜上的卫生巾折叠,为了实现单独包装的卫生巾的已知的折叠成C形的形状。于是,固定可以不仅通过在连续的卫生巾之间的压花并且通过粘贴条的施加来进行,其中,优选设置这两个措施的组合。最后,如此构成的软带切割成分别具有一个卫生巾的片。
除了已经提及的缺点之外要考虑的是,不仅在制造时而且之后在使用时基于包装膜的小的总厚度存在撕破的危险。
此外,附着粘合剂在准确预定的图案中的设置和各个卫生巾在其上的位置准确的设置要求仔细的方法运用以及高的仪器耗费。
概念卫生巾在本发明的范围内也包括卫生护垫、失禁产品和其他面状的吸收的卫生产品,它们单独利用包装膜进行包装。
发明内容
本发明的任务在于,避免由现有技术已知的缺点。特别是应避免直接在制造单独包装的卫生巾时必须在熔化状态下施加附着粘合剂。
在此也要考虑的是,包装膜作为初级产品供应和再处理。在本发明的范围内,应恰好使再处理变得容易。
本发明的技术方案和所述任务的解决方案是用于卫生产品、特别是卫生巾的多层包装膜,所述多层包装膜具有第一外层、第二外层以及在所述第一外层和所述第二外层之间的附着粘合剂层,其中,在所述附着粘合剂层和所述第一外层之间的复合附着大于在所述附着粘合剂层和所述第二外层之间的复合附着,并且其中,所述第一外层和第二外层以及设置在它们之间的所述附着粘合剂层的总厚度处于20μm至80μm之间。
按照本发明,附着粘合剂首先处于多层包装膜的内部,利用所述附着粘合剂卫生巾随后在其使用中设置在内裤的裤裆区域中,其中,通过第一外层与卫生巾的至少一个基体的固定粘接,多层包装膜局部撕开,由此,第一外层以及附着粘合剂层保留在卫生巾的下侧上。
本发明的技术方案对应地也是一种单独包装的卫生巾,所述卫生巾具有多层包装膜的延伸超过所述卫生巾的剪裁部,其中,所述卫生巾的至少一个基体不可脱开地与所述第一外层粘接。不可脱开在本发明的范围内理解为,在卫生巾或卫生巾的至少一个基体之间的粘接在将卫生巾从包装膜上取下时不能与第一外层分开,并且具体而言第一外层在与设置在其下面的附着粘合剂的不可脱开粘接的边缘处裂开并且然后面状地与第二外层分开。
为了不可脱开粘接,可以设置有不同的化学和/或物理硬化的粘合剂。除了含溶剂的粘合剂和多组分粘合剂之外,原则上也考虑具有足够高强度的热粘合剂。
在第一外层与卫生巾或卫生巾的基体的要不可脱开地粘接的区段中,粘合剂可以不仅面状地而且在图案中施加。在粘合剂图案中例如也可以设置有环绕的框架,以便确保可靠地保持在通常受载的部位上。
在本发明的范围内得出多个优点。首先包装膜的20μm至80μm之间的总体上较大的总厚度也出于成本原因可以被容忍,因为用于卫生巾的附着粘合剂已经整合到作为初级产品的包装膜中。通过20μm至80μm之间的总厚度,从使用者的角度产生较高的质量印象。
此外,可以在本发明的范围内在多层包装膜的外侧上完全放弃硅树脂涂层或其他脱离涂层,从而包装膜在材料选择适当时也能容易热封。例如可以在C形折叠之后,进行通过热封点或热缝的固定,从而可以放弃设置单独的粘贴条作为封闭部。
另一个优点在于,施加简单的不可脱开的粘合剂可能比涂以熔化的附着粘合剂更容易实施。
在本发明的范围内必须确保,在所述附着粘合剂层和所述第一外层之间的复合附着大于在所述附着粘合剂层和所述第二外层之间的复合附着,因此,在卫生巾从包装膜上取下时,附着粘合剂与第二外层分开并且共同地与第一外层的对应区段保留在卫生巾的下侧上。出于这个目的,所述第二外层可以具有邻接于所述附着粘合剂层的脱离层。附加地或备选地,在第一外层和附着粘合剂层之间可以设置有适配的增附剂层,以便提高复合附着。
原则上,第一外层和第二外层可以分别由仅一个亦或多个薄膜层构成。
按照本发明,提供一种多层包装膜,所述多层包装膜在两个外层之间被保护地具有附着粘合剂层。在此,包装膜可以以不同的方式制造。
按照第一变型方案,两个外层和所述附着粘合剂层共同地共挤压,从而产生特别简单的方法运用。区别于现有技术,于是不需要不同层的事后聚集或涂层的施加。
备选地,所述附着粘合剂层也可以由热塑性的塑料构成,其中,所述第一外层和所述第二外层分开地制造并且通过所述附着粘合剂层作为热粘合剂粘合。附着粘合剂层于是满足两个不同的任务。一方面,附着粘合剂层在熔化状态下在制造时用于在粘合过程中连接第一外层和第二外层,其中,然而附着粘合剂层保持持久粘贴的特性并且以所描述的方式在使用时能实现卫生巾固定在内裤的裤裆区域上。
附着粘合剂层可以整面地设置在第一外层和第二外层之间。此外,然而也可能的是,附着粘合剂仅设置在图案或区段中,其中,这样的非整面的涂覆特别是在粘合过程中能容易实现。具有点或栅格的均匀图案可以设置用于总体上节省附着粘合剂,其中,在图案均匀的情况下在将卫生巾施加到包装膜上时不必维持预定的花样、也就是说没有准确定位。但原则上也可能的是,附着粘合剂仅设置在这样的区段中,其中,这些区段于是之后构成用于卫生巾的固定区域。
如果在共挤压的范围内设置有非整面的布置结构,则必要时能以不粘的材料填充间隙。
所述附着粘合剂例如可以基于苯乙烯类嵌段共聚物、特别是苯乙烯-异戊二烯类嵌段共聚物(SIS)形成。苯乙烯类嵌段共聚物以特别的程度适用于共挤压整个多层包装膜。
对于利用附着粘合剂作为热粘贴剂的粘合,丙烯酸脂粘合剂特别是适合的。
在本发明的范围内,不仅是各个层之间的复合附着是重要的。具体而言也必须保证,在卫生巾或卫生巾的基体与第一外层的持久粘接的边缘上,多层包装膜的第一外层裂开。出于这个目的可能的是,第一外层通过适当地选择聚合物组分和/或加入添加剂构造成相对脆且易碎的,因此裂开能容易实现。
附加地或备选地,所述第一外层也可以在不可脱开地粘接的面的边缘上具有削弱线,所述削弱线例如可以通过激光或通过冲压形成。但在这样的构造方案的范围内,卫生巾或卫生巾的基体然后必须位置准确地设置。
为了能实现小的制造成本和良好的功能特性,按照本发明的一种优选的构造方案,所述第一外层和所述第二外层分别作为聚合物主要成分具有聚烯烃、特别是聚乙烯(PE)。在这样的构造方案的范围内于是可以在折叠包装膜之后通过热封进行封闭或固定。
所述第一外层和所述第二外层的厚度典型地处于5μm至30μm之间,其中,所述附着粘合剂层的厚度典型地处于5μm至25μm之间。
在将卫生巾从包装膜上取下之后,附着粘合剂层通过第一外层固定在卫生巾或卫生巾的基体上。在此背景下,也可以规定:第一外层构成整个卫生巾的功能层、例如卫生巾的背壁。
在这样的构造方案的范围内,首先仅提供所述卫生巾的基体并且将其施加到第一外层上并且在此优选整面地粘接。于是在卫生巾从包装膜取下之后,所述第一外层构成所述卫生巾的背壁。为了提供透气特性,该背壁也可以具有孔。
为了获得第一外层的透气的孔,至少所述第一外层可以被拉伸。在此,所述第一外层可以包含填料,其中,在填料颗粒上通过拉伸形成透气的孔。当整个多层包装膜通过粘合第一外层和第二外层构成时,在粘合之前仅第一外层的拉伸就足够。
但当多层包装膜制造为挤压膜时,整个共挤压膜必须以所描述的方式拉伸,以便能够在第一外层的填料颗粒上形成透气的孔。
原则上也可以设置有填料,以便对包装膜染色和/或优化第一外层在与卫生巾或卫生巾的基体的不可脱开的粘接上的撕开特性、特别是裂开。
按照本发明的一种备选构造方案,卫生巾已经完全以背壁提供,其中,于是仅必须由在包装膜中整合的附着粘合剂层提供粘贴特性。在这样的构造方案的范围内,卫生巾的基体以其背壁不可脱开地与外层粘接,其中,不可脱开地粘接的面在放平状态下为所述卫生巾的基面的20%至80%之间。
特别是多个区段也可以以所描述的方式不可脱开地粘接。特别优选地,所述背壁和所述第一外层沿着两个优选相互平行沿所述卫生巾的纵向延伸的条不可分开地粘接。在此,卫生巾的纵向对应于内裤上的裤裆区域的延伸。
附图说明
下面借助仅示出一个实施例的附图解释本发明。附图中:
图1示出在包装膜的区段上的卫生巾的放平状态;
图2示出单独包装到包装膜中的卫生巾;
图3A示出沿着图1的线A-A的纵剖图;
图3B示出在将卫生巾从包装膜上取下之后按照图3A的布置结构;
图4A示出按照图3A的一个备选构造方案的布置结构;
图4B示出按照图4A的布置结构,此时,卫生巾从包装膜上取下。
具体实施方式
图1示出卫生巾1的放平状态的俯视图,所述卫生巾放在包装膜2上。
为了能将卫生巾1固定在内裤的裤裆区域中,该卫生巾在其下侧上具有带有附着粘合剂4的粘贴区域3,其中,粘贴区域3在图1中标明。粘贴区域3作为条彼此平行地沿着卫生巾1的纵向L延伸。
卫生巾1可以在中间区段中也以未示出的方式设有侧翼部,所述侧翼部首先向上折叠并且同样具有粘贴区段。在这样的在图中未示出的构造方案的范围内,于是向上折叠的翼部的单独遮盖是必需的。
图2示出利用包装膜2单独包装的卫生巾1,其中,首先按照图1放平的布置结构关于卫生巾1的纵向L折叠成C形的,从而然后沿纵向L观察卫生巾1的端部设置在中间区段上。从图2可看出的折线5为了说明也在图1中画出。
按照图3A(沿着图1的线A-A剖视图),包装膜2构造成多层的并且具有第一外层6、第二外层7和在第一外层6和第二外层7之间的附着粘合剂4的层。
设置在包装膜2上的卫生巾1包括基体8,该基体由多个层构成并且除了未详细示出的可透过液体的上侧也包括吸入的核心。此外,卫生巾1包括背壁9,该背壁优选具有透气特性,然而是不透水的。
卫生巾1以背壁9通过不可脱开的粘合剂10粘到第一外层6上。在施加不可脱开的粘合剂10的地方,按照图3A的实施例首先通过冲压或通过激光在第一外层6中产生削弱线11,但该削弱线在本发明的范围内是可选的。备选地,第一外层也可以如此构造,使得该第一外侧在将卫生巾1从包装膜2上取下时能够容易裂开。
按照本发明,由附着粘合剂4构成的层相对于第一外层6的复合附着大于在由附着粘合剂4构成的层和第二外层7之间的复合附着。
在示出的实施例中,第二外层构造成双层的并且包括载体层12和邻接于由附着粘合剂4构成的层的脱离层13,该脱离层相对于附着粘合剂4具有特别低的复合附着。在示出的实施例中,第一外层6仅由一个薄膜层构成,但是其中,也没有限制地考虑多层的构造方案。
在示出的实施例中,载体层12以及第一外层6的厚度处于5μm至20μm之间的范围内,例如大约13μm。作为材料设置有聚烯烃、优选聚乙烯(PE),从而在按照图2的折叠状态下,第一外层6可以与第二外层7的载体层12通过热封14来连接,从而可以省去按照图2的用于封闭包装的单独的粘贴条。
当按照图3B卫生巾1从包装膜2上取下时,沿着不可脱开的粘合剂10,第一外层6以及由附着粘合剂4构成的层保留在卫生巾1上,由此,产生在图1中示出的粘贴区域3。
如此构成的粘贴区域3优选在卫生巾1的在其放平状态下的基面的20%至80%之间上延伸(参见图1)。
包装膜2不仅可以完全通过共挤压来形成或者也可以通过粘合来形成。第一外层6和第二外层7例如可以通过附着粘合剂4粘合,如果该附着粘合剂是热塑性的并且在熔化状态下引入第一外层6和第二外层7之间的话。附着粘合剂4于是在粘合时用作热粘合剂(热熔粘合剂)。
附着粘合剂4例如可以基于苯乙烯类嵌段共聚物、特别是SIS亦或丙烯酸脂基构成。
图4A和4B示出本发明的一个备选构造方案,其中,仅卫生巾1的基体8利用不可脱开的粘合剂10粘到第一外层6上。
利用不可脱开的粘合剂10的粘接优选在基体8的整个面上进行,其中,然后接着在将卫生巾1从包装膜2上取下时通过不可脱开的粘合剂10保留在基体8上的第一外层6构成卫生巾1的背壁9',由此,可以实现在结构上的进一步简化。
为了在按照图4A和4B的构造方案中也实现透气性,第一外层6可以在其制造时设有填料、例如滑石粉,其中,然后通过第一外层6的延展在填料的颗粒上形成透气的孔。
当第一外层6与第二外层7粘合时,在粘合之前仅拉伸第一外层6就足够。而当整个包装膜2通过共挤压制造时,整个共挤压膜也经受拉伸过程,为了以所描述的方式取得第一外层6的透气特性。
Claims (15)
1.用于卫生产品、特别是卫生巾(1)的多层包装膜(2),所述多层包装膜具有第一外层(6)、第二外层(7)以及在所述第一外层(6)和所述第二外层(7)之间的附着粘合剂层,其中,在所述附着粘合剂层和所述第一外层(6)之间的复合附着大于在所述附着粘合剂层和所述第二外层(7)之间的复合附着,并且其中,所述第一外层(6)和所述第二外层(7)以及设置在它们之间的所述附着粘合剂层的总厚度处于20μm至80μm之间。
2.按照权利要求1所述的多层包装膜(2),其特征在于,所述第二外层(7)具有邻接于所述附着粘合剂层的脱离层(13)。
3.按照权利要求1或2所述的多层包装膜(2),其特征在于,所述第一外层(6)和所述第二外层(7)分别具有5μm至30μm之间的厚度并且所述附着粘合剂层具有5μm至25μm之间的厚度。
4.按照权利要求1至3中任一项所述的多层包装膜(2),其特征在于,所述第一外层(6)、所述第二外层(7)和所述附着粘合剂层共同地共挤压。
5.按照权利要求1至4中任一项所述的多层包装膜(2),其特征在于,所述附着粘合剂层基于苯乙烯类嵌段共聚物、特别是苯乙烯-异戊二烯-苯乙烯类嵌段共聚物构成。
6.按照权利要求1至3中任一项所述的多层包装膜(2),其特征在于,所述附着粘合剂层是热塑性的,并且其中,所述第一外层(6)和所述第二外层(7)分开地制造并且通过所述附着粘合剂层作为热粘合剂进行粘合。
7.按照权利要求6所述的多层包装膜(2),其特征在于,所述附着粘合剂层在丙烯酸脂的基底上构成。
8.按照权利要求1至7中任一项所述的多层包装膜(2),其特征在于,所述第一外层(6)和所述第二外层(7)作为聚合物的主要成分分别具有聚烯烃、特别是聚乙烯。
9.按照权利要求1至8中任一项所述的多层包装膜(2),其特征在于,至少所述第一外层(6)被拉伸。
10.按照权利要求9所述的多层包装膜(2),其特征在于,所述第一外层(6)包含填料并且具有通过拉伸形成的透气的孔。
11.单独包装的卫生巾(1),所述卫生巾具有按照权利要求1至10中任一项所述的多层包装膜(2)的延伸超过所述卫生巾(1)的剪裁部,其中,所述卫生巾(1)的至少一个基体(8)不可脱开地与所述第一外层(6)粘接。
12.按照权利要求11所述的单独包装的卫生巾(1),其特征在于,所述卫生巾(1)的基体(8)整面地与所述第一外层(6)粘接,从而所述第一外层(6)构成所述卫生巾(1)的背壁(9)。
13.按照权利要求11所述的单独包装的卫生巾(1),其特征在于,所述卫生巾(1)的基体(8)以背壁(9)不可脱开地与所述第一外层(6)粘接,其中,不可脱开地粘接的面在放平状态下的对应于所述卫生巾(1)基面的20%至80%之间。
14.按照权利要求13所述的单独包装的卫生巾(1),其特征在于,所述背壁(9)和所述第一外层(6)沿着两个沿所述卫生巾(1)的纵向延伸的条不可分开地粘接。
15.按照权利要求13所述的单独包装的卫生巾(1),其特征在于,所述第一外层(6)在粘接的面的边缘上具有削弱线(11)。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/941,761 | 2015-11-16 | ||
| US14/941,761 US20170135874A1 (en) | 2015-11-16 | 2015-11-16 | Multilayer wrapper film for hygiene product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106696409A true CN106696409A (zh) | 2017-05-24 |
Family
ID=57144882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033631.9A Pending CN106696409A (zh) | 2015-11-16 | 2016-11-16 | 用于卫生产品、特别是卫生巾的多层包装膜 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20170135874A1 (zh) |
| EP (1) | EP3167860A1 (zh) |
| JP (1) | JP2017086918A (zh) |
| CN (1) | CN106696409A (zh) |
| CA (1) | CA2946449A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3188813A1 (en) * | 2020-07-31 | 2022-02-03 | Berry Global, Inc. | Multilayer film |
| JP7685887B2 (ja) * | 2021-06-23 | 2025-05-30 | 日本製紙クレシア株式会社 | 吸収性物品 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917929A (en) * | 1989-01-18 | 1990-04-17 | Minnesota Mining And Manufacturing Company | One piece adhesive bandage and package unit |
| DK0532649T3 (da) | 1990-06-05 | 1994-11-28 | Procter & Gamble | Udløselig emballage foldet i C-form |
| US5474818A (en) | 1992-05-15 | 1995-12-12 | International Paper | Flexible container with nonstick interior |
| US6036679A (en) * | 1998-04-09 | 2000-03-14 | Kimberly-Clark Worldwide, Inc. | Individually wrapped absorbent article |
| US6293932B1 (en) * | 1998-04-09 | 2001-09-25 | Kimberly-Clark Worldwide, Inc. | Individually wrapped absorbent article which uses a minimum amount of wrapper material |
| CA2629062A1 (en) * | 2005-11-09 | 2007-05-18 | First Quality Products, Inc. | Releasable nonwoven wrapper for an absorbent article |
| ES2368352T3 (es) * | 2007-05-25 | 2011-11-16 | The Procter & Gamble Company | Artículo de higiene femenina con un diseño impreso y un diseño estampado. |
| US8939955B2 (en) * | 2011-06-03 | 2015-01-27 | Kimberly-Clark Worldwide, Inc. | Absorbent article with contrasting wrapper graphics |
| US8567511B2 (en) * | 2011-06-08 | 2013-10-29 | Randle Mackenzie Loree | Method and apparatus for running casing in a wellbore with a fluid driven rotatable shoe |
| ES2664425T3 (es) * | 2012-04-23 | 2018-04-19 | Sca Hygiene Products Ab | Una unidad de envase con sellado mejorado y un método para formar una unidad de envase que tiene un sellado mejorado |
| EP2886588B1 (de) * | 2013-12-23 | 2019-03-20 | Mondi Gronau GmbH | Elastische Monofolie sowie Verfahren zur Herstellung eines Laminates für Einweg-Hygieneprodukte |
-
2015
- 2015-11-16 US US14/941,761 patent/US20170135874A1/en not_active Abandoned
-
2016
- 2016-10-17 EP EP16194218.0A patent/EP3167860A1/de not_active Withdrawn
- 2016-10-26 CA CA2946449A patent/CA2946449A1/en not_active Abandoned
- 2016-11-15 JP JP2016222313A patent/JP2017086918A/ja active Pending
- 2016-11-16 CN CN201611033631.9A patent/CN106696409A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017086918A (ja) | 2017-05-25 |
| US20170135874A1 (en) | 2017-05-18 |
| EP3167860A1 (de) | 2017-05-17 |
| CA2946449A1 (en) | 2017-05-16 |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
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| WD01 | Invention patent application deemed withdrawn after publication |