CN116509640A - 一种非织造复合吸水芯体及生产设备与生产方式 - Google Patents

一种非织造复合吸水芯体及生产设备与生产方式 Download PDF

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Publication number
CN116509640A
CN116509640A CN202310332083.3A CN202310332083A CN116509640A CN 116509640 A CN116509640 A CN 116509640A CN 202310332083 A CN202310332083 A CN 202310332083A CN 116509640 A CN116509640 A CN 116509640A
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CN
China
Prior art keywords
layer
hydrophobic
melt
water
absorbing
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Pending
Application number
CN202310332083.3A
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English (en)
Inventor
邓伟添
邓伟雄
陈文杰
李孙辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Bidefu Medical And Health Technology Co ltd
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Guangdong Bidefu Medical And Health Technology Co ltd
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Application filed by Guangdong Bidefu Medical And Health Technology Co ltd filed Critical Guangdong Bidefu Medical And Health Technology Co ltd
Priority to CN202310332083.3A priority Critical patent/CN116509640A/zh
Publication of CN116509640A publication Critical patent/CN116509640A/zh
Pending legal-status Critical Current

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Abstract

本发明公开了一种非织造复合吸水芯体及生产设备与生产方式，其中，非织造复合吸水芯体包括由下至上依次设置的疏水纺粘层a、疏水熔喷层b、蓬松吸水层c、疏导层d、亲水非织造层e，蓬松吸水层c顶面排布有SAP，疏水熔喷层b覆盖蓬松吸水层c顶面用于阻隔SAP漏出；该吸水芯体通过设置五层结构，疏水纺粘层、疏水熔喷层、蓬松吸水层、疏导层、纺粘复合层，其中，利用蓬松吸水层容纳SAP，以提高蓬松吸水层的吸水保水能力，配合疏水熔喷层，有效阻隔蓬松吸水层的SAP漏出，从而提高整体的吸水保水能力，且可使本发明的吸水芯体使用寿命长，实现制造出非织造的复合吸水芯体。

Description

一种非织造复合吸水芯体及生产设备与生产方式
技术领域
本发明涉及无纺布技术领域，尤其是涉及一种非织造复合吸水芯体及生产设备与生产方式。
背景技术
纸尿裤、隔尿垫和卫生巾等卫生用品的主要吸水部分由吸水芯体做成，目前，吸水芯体多采用洒落式工艺，随机地将高吸水性树脂、绒毛浆等吸水性材料铺洒于无纺布上，并使用粘合剂将上下无纺布包覆粘合成型。这种吸水芯体的生产方法会使高吸水性材料嵌入性较差，分布不均匀，且吸水树脂在吸水膨胀后容易导致绒毛浆断裂和起坨等问题。公开号为CN1038312B，一种复合吸水芯体及其制备方法，复合吸水芯体包括面层、芯层和底层，所述芯层由下而上顺次包括第一连接层、第一吸水层、增强层、第二吸水层和第二连接层，所述第一吸水层、第二吸水层均由高分子吸水颗粒组成，所述第一连接层中均匀渗有高分子吸水颗粒，所述增强层中也均匀渗有高分子吸水颗粒；所述第一连接层、第二连接层分别由含有粉状热熔胶或ES纤维的木浆纤维组成，所述第一吸水层、第二连接层分别由高分子吸水颗粒组成，所述增强层由长纤维膨松无纺布组成。该复合吸水芯体其耐用性不足，且制作工艺相对复杂，虽然吸水能力高，但保水效果较差。
发明内容
针对现有技术的不足，本发明的目的在于提供一种吸水保水效果佳的非织造复合吸水芯体及生产设备与生产方式。
为实现上述目的，本发明提供的方案为：一种非织造复合吸水芯体，包括由下至上依次设置的疏水纺粘层、疏水熔喷层、蓬松吸水层、疏导层、亲水非织造层，其中，所述蓬松吸水层顶面排布有SAP，所述疏水熔喷层用于阻隔蓬松吸水层的SAP漏出。
本发明的有益效果为：具有强力保水能力，该吸水芯体通过设置五层结构，疏水纺粘层、疏水熔喷层、蓬松吸水层、疏导层、亲水非织造层，其中，利用蓬松吸水层容纳SAP，以提高蓬松吸水层的吸水保水能力，配合疏水熔喷层，有效阻隔蓬松吸水层的SAP漏出，从而提高整体的吸水保水能力，且可使本发明的吸水芯体使用寿命长，实现制造出非织造的复合吸水芯体；同时，疏水熔喷层、蓬松吸水层拒均可减小热熔胶的使用量，防止热熔胶用量过大造成发硬，亲水非织造层可以作为医疗防护服的内衬，柔软舒适无刺激，可吸收人体汗液，提高舒适性。
进一步地，所述疏水纺粘层、疏水熔喷层、蓬松吸水层、疏导层、亲水非织造层之间通过热轧或超声波复合。
进一步地，所述亲水非织造层为亲水纺粘无纺布、纺熔无纺布、热风布中的一种。本发明采用上述结构后，通过选用不同的布制造出亲水非织造层，从而设计出不同吸水保水效果的芯体。
本发明还包括复合吸水芯体生产设备，包括用于生产疏水纺粘层的第一机组、用于生产疏水熔喷层并将疏水熔喷层与疏水纺粘层复合的第二机组、用于生产蓬松吸水层的第三机组、用于放卷疏导层的第四机组、用于放卷亲水非织造层并将亲水非织造层与其他结构叠合的第五机组、用于复合多层结构的第六机组。本发明通过设置第一机组、第二机组、第三机组，分别实现制作出疏水纺粘层、疏水熔喷层、蓬松吸水层，并将疏水纺粘层、疏水熔喷层、蓬松吸水层依次复合，然后通过第五机组、第六机组，实现将疏水纺粘层、疏水熔喷层、蓬松吸水层、疏导层、亲水非织造层复合。
进一步地，所述第一机组包括纺丝机组、第一成网机、第一压合辊，所述纺丝机组包括纺粘通道，所述纺粘通道下方设置所述第一成网机，所述纺粘通道的出料端设置第一压合辊。本发明采用上述结构后，实现成型疏水纺粘层。
进一步地，所述第二机组包括第一熔喷模头、引导板、第二成网机、两第二压合辊、第一热轧机，所述第一熔喷模头正下方设置所述引导板，所述引导板、第二成网机、两第二压合辊、第一热轧机沿输送方向依次设置，所述引导板横截面呈弧形结构，所述引导板用于将第一熔喷模头喷出的熔喷纤维引导输送第二成网机上，两所述第二压合辊用于压合疏水纺粘层与疏水熔喷层，所述第一热轧机用于复合疏水纺粘层与疏水熔喷层。本发明采用上述结构后，实现成型疏水熔喷层，并将疏水纺粘层与疏水熔喷层复合。
进一步地，所述第三机组包括第二熔喷模头、引导辊、第三成网机、涂胶辊、振动给料箱、振动电机、布料辊、两第三压合辊，所述引导辊、第三成网机、涂胶辊、布料辊、两第三压合辊沿输送方向依次设置，所述引导辊设置于第二熔喷模头正下方，所述第二熔喷模头用于向第三成网机喷出并丝状的熔喷纤维，所述布料辊表面成形有给料圆网，所述布料辊正上方设置所述振动给料箱，所述振动电机设置于振动给料箱外侧壁上。本发明采用上述结构后，实现成型蓬松吸水层，以及两第三压合辊用于将疏水纺粘层和疏水熔喷层的复合体与蓬松吸水层压合。
进一步地，所述第三机组还包括挡料板，所述振动给料箱外侧壁上设置所述挡料板，所述挡料板呈弧形结构，所述挡料板包裹布料辊的后半侧用于防止SAP退出布料辊。
进一步地，所述第四机组包括用于放卷疏导层的第一放卷机、用于引导疏导层输送的多条第一导布辊。本发明采用上述结构后，实现导出预加工的疏导层。
进一步地，所述第五机组包括放卷亲水非织造层的第二放卷机、用于引导亲水非织造层输送的多条第二导布辊、用于将亲水非织造层与其他结构叠合的两第四压合辊，所述第二放卷机、多个第二导布辊、两第四压合辊依次设置。本发明采用上述结构后，实现将五层结构叠合。
进一步地，所述第六机组包括用于复合多层结构的第二热轧机。本发明采用上述结构后，实现复合五层结构以形成本发明的复合吸水芯体。
本发明还包括复合吸水芯体生产方式，包括以下步骤：
S1.纺丝机组向第一成网机输送纺粘纤维，第一成网机将纺粘纤维成形为疏水纺粘层，然后通过第一压合辊将疏水纺粘层预压服贴在第一成网机上，再将形成的疏水纺粘层输送至两第二压合辊之间；
S2.第一熔喷模头喷出熔喷纤维，然后通过引导板引导至第二成网机上形成疏水熔喷层，再依次通过两第二压合辊与第一热轧机将疏水纺粘层与疏水熔喷层复合；
S3.第二熔喷模头喷出并丝状的熔喷纤维，然后通过第三成网机形成熔喷布，再通过涂胶辊对熔喷纤维进行涂胶；
S4.振动电机带动振动给料箱振动，使SAP均匀下落至给料圆网，然后通过布料辊的转动将SAP均匀排布于步骤S3的熔喷布上，形成蓬松吸水层，再通过两第三压合辊将步骤S2的复合体与蓬松吸水层压合；
S5.第一放卷机放卷疏导层，第二放卷机放卷亲水非织造层，然后通过第四压合辊将步骤S4的复合体、疏导层、亲水非织造层叠合，再通过第六机组固结复合。
附图说明
图1为本发明的复合吸水芯体结构图。
图2为本发明的复合吸水芯体生产示意图。
图3为本发明的第一机组与第二机组结构图。
图4为本发明的第三机组结构图。
图5为本发明的给料圆网部分展开图。
其中，1为第一机组，11为纺丝机组，12为第一成网机，13为第一压合辊2为第二机组，21为第一熔喷模头，22为引导板，23为第二成网机，24为第二压合辊，25为第一热轧机，3为第三机组，31为第二熔喷模头，32为引导辊，33为第三成网机，34为涂胶辊，341为喷胶头，35为布料辊，351为给料圆网，36为振动给料箱，361为振动电机，362为凸轮，363为分散板，37为挡料板，38为第三压合辊，4为第四机组，41为第一放卷机，5为第五机组，51为第二放卷机，52为第四压合辊，6为第六机组，61为第二热轧机，7为收卷机，a为疏水纺粘层，b为疏水熔喷层，c为蓬松吸水层，d为疏导层，e为亲水非织造层。
实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
参见附图1至附图5所示，一种非织造复合吸水芯体，包括由下至上依次设置的疏水纺粘层a、疏水熔喷层b、蓬松吸水层c、疏导层d、亲水非织造层e，蓬松吸水层c顶面排布有SAP，疏水熔喷层b覆盖蓬松吸水层c顶面用于阻隔SAP漏出。
在本实施例中，疏水纺粘层a、疏水熔喷层b、蓬松吸水层c、疏导层d、亲水非织造层e之间通过热轧或超声波复合。
其中，疏水纺粘层a为吸水芯体提供强力；疏水熔喷层b用于阻隔SAP，防止SAP漏出，也阻隔多余的液体，防止液体渗漏，提高保水效果；蓬松吸水层c，具有较高的蓬松度，可以为SAP提供固结点，缠结SAP，纤维孔隙率较高，具有较高的吸水保水能力；疏导层d，为亲水打孔纺粘无纺布，预加工。
在本实施例中，亲水非织造层e为三层结构，亲水非织造层e包括亲水纺粘无纺布、纺熔无纺布、热风布中的一种，可以选用不同的布制造亲水非织造层e，从而设计不同吸水保水效果的芯体；其中亲水纺粘无纺布、纺熔无纺布、热风布可采用现有常规的亲水纺粘无纺布或纺熔无纺布或热风布。
本实施例的复合吸水芯体生产设备，包括用于生产疏水纺粘层a的第一机组1、用于生产疏水熔喷层b并将疏水熔喷层b与疏水纺粘层a复合的第二机组2、用于生产蓬松吸水层c的第三机组3、用于放卷疏导层d的第四机组4、用于放卷亲水非织造层e并将亲水非织造层e与其他结构叠合的第五机组5、用于复合多层结构的第六机组6。
在本实施例中，第一机组1包括纺丝机组11、第一成网机12、第一压合辊13，纺丝机组11包括纺粘通道，纺粘通道下方设置第一成网机12，纺粘通道的出料端设置第一压合辊13。
在本实施例中，第二机组2包括第一熔喷模头21、引导板22、第二成网机23、两第二压合辊24、第一热轧机25，第一熔喷模头21正下方设置引导板22，引导板22、第二成网机23、两第二压合辊24、第一热轧机25沿输送方向依次设置，引导板22横截面呈弧形结构，引导板22用于将第一熔喷模头21喷出的熔喷纤维引导输送第二成网机23上，两第二压合辊24用于压合疏水纺粘层a与疏水熔喷层b，第一热轧机25用于复合疏水纺粘层a与疏水熔喷层b。
其中，疏水纺粘层a与疏水熔喷层b的组合可防止SAP从蓬松吸水层c漏出来，二是防止本实施例的芯体吸水后往下渗漏。
在本实施例中，第三机组3包括第二熔喷模头31、引导辊32、第三成网机33、涂胶辊34、振动给料箱36、振动电机361、布料辊35、挡料板37、两第三压合辊38，引导辊32、第三成网机33、涂胶辊34、布料辊35、两第三压合辊38沿输送方向依次设置，引导辊32设置于第二熔喷模头31正下方，第二熔喷模头31用于向第三成网机33喷出并丝状的熔喷纤维，布料辊35表面成形有给料圆网，布料辊35正上方设置振动给料箱36，振动电机361设置于振动给料箱36外侧壁上，两第三压合辊38用于将压合疏水熔喷层b与蓬松吸水层c。
在本实施例中，振动给料箱36外侧壁上设置挡料板37，挡料板37呈弧形结构，挡料板37包裹布料辊35的后半侧用于防止SAP退出布料辊35。
在本实施例中，振动给料箱36设置多块分散板363，多块分散板363由上至下等间隔排布，多块分散板363左右错位排布，振动电机361连接凸轮362，通过振动电机361带动振动给料箱36振动，使SAP粉料下落至振动给料箱36的多块分散板363上后均匀分散，再下落至给料圆网3。
在本实施例中，涂胶辊34的前侧或后侧设置有喷胶头3，喷胶头3沿涂胶辊34的长度方向延伸，喷胶头3用于向涂胶辊34均匀涂抹胶水，用于将SAP粘贴于熔喷纤维上。
其中，第二熔喷模头31通过调整熔喷工艺以将熔融纤维做成冰丝状，具体的调节工艺有：降低热风速度、降低热风温度、增大DCD距离等。
在本实施例中，第四机组4包括用于放卷疏导层d的第一放卷机41、用于引导疏导层d输送的多条第一导布辊，多条第一导布辊依次设置于第一放卷机41的下游，其中疏导层d的制作工艺是将做好的亲水无纺布拿去二次加工，通过设备在无纺布上打出不同形状的孔，以形成疏导层d，不同形状的孔具有疏导引流作用，用于引导液体流动，而且不同形状的孔排布对液体导流的情况不同，该疏导层d的制作可引用授权号为CN205041623U的中国专利所公开的一种具有高速导流结构的卫生巾，或可引用授权号为CN206275778U的中国专利所公开的一种防反渗纸尿裤，本领域技术人员可根据实际情况选取合适的疏导层d。
在本实施例中，第五机组5包括放卷亲水非织造层e的第二放卷机51、用于引导亲水非织造层e输送的多条第二导布辊、用于将亲水非织造层e与其他结构叠合的两第四压合辊52，第二放卷机51、多个第二导布辊、两第四压合辊52依次设置。
在本实施例中，第六机组6可为第二热轧机或超声波复合设备，用于将疏水纺粘层a、疏水熔喷层b、蓬松吸水层c、疏导层d、亲水非织造层e复合，其中热轧机与超声波复合设备可采用现有常规的热轧机与超声波复合设备。
在本实施例中，疏水纺粘层a、疏水熔喷层b、蓬松吸水层c、疏导层d、亲水非织造层e之间通过热轧或超声波方式进行复合。
本实施例的复合吸水芯体生产方式，包括以下步骤：
S1.纺丝机组11制作纺粘纤维，然后向第一成网机12输送纺粘纤维，第一成网机12将纺粘纤维成形为疏水纺粘层a，然后通过第一压合辊13将疏水纺粘层a预压服贴在第一成网机12上，再输送至两第二压合辊24之间。
S2.第一熔喷模头21喷出熔喷纤维，然后通过引导板22引导至第二成网机23上形成疏水熔喷层b，再输送至两第二压合辊24之间，通过两第二压合辊24、第一热轧机14将疏水纺粘层a与疏水熔喷层b压合，最后将疏水纺粘层a与疏水熔喷层b输出，并以疏水纺粘层a位于下侧、疏水熔喷层b位于上侧的方式输送。
S3.第二熔喷模头31喷出并丝状的熔喷纤维，并通过引导辊32的引导以将熔喷纤维输送至第三成网机33，然后通过第三成网机33形成熔喷布，再通过涂胶辊34对熔喷纤维进行涂胶；其中，喷胶头3向涂胶辊34均匀涂抹胶水。
S4.振动电机361带动振动给料箱36振动，使SAP均匀下落至给料圆网3，挡料板38在布料辊35转动的过程中，将多余的SAP退出，使SAP仅留于给料圆网3内，然后通过布料辊35的转动使给料圆网3接触熔喷布，以将SAP均匀排布于步骤S3的熔喷布上，形成蓬松吸水层c，再将步骤S2的复合体输送至蓬松吸水层c的正下方，并通过两第三压合辊将步骤S2的复合体压合于蓬松吸水层c的底面上，实现防止SAP漏出。
S5.第一放卷机41放卷疏导层d，同步地第二放卷机51放卷亲水非织造层e，经多条第一导布辊与多条第二导布辊的引导，使亲水非织造层e、疏导层d、步骤S4的复合体由上至下依次叠合，然后通过第四压合辊52将步骤S4的复合体、疏导层d、亲水非织造层e压合，再通过第二热轧机61固结复合，以制成本实施例的复合吸水芯体，最后通过收卷机7收卷。
以上所述之实施例仅为本发明的较佳实施例，并非对本发明做任何形式上的限制。任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示的技术内容对本发明技术方案作出更多可能的变动和润饰，或修改为等同变化的等效实施例。故凡未脱离本发明技术方案的内容，依据本发明之思路所作的等同等效变化，均应涵盖于本发明的保护范围内。

Claims (10)

1.一种非织造复合吸水芯体，包括由下至上依次设置的疏水纺粘层（a）、疏水熔喷层（b）、蓬松吸水层（c）、疏导层（d）、亲水非织造层（e），其特征在于：所述蓬松吸水层（c）顶面排布有SAP，所述疏水熔喷层（b）用于阻隔蓬松吸水层（c）的SAP漏出。
2.根据权利要求1所述的一种非织造复合吸水芯体，其特征在于：所述疏水纺粘层（a）、疏水熔喷层（b）、蓬松吸水层（c）、疏导层（d）、亲水非织造层（e）之间通过热轧或超声波复合。
3.根据权利要求2所述的一种非织造复合吸水芯体，其特征在于：所述亲水非织造层（e）为亲水纺粘无纺布、纺熔无纺布、热风布中的一种。
4.一种如权利要求1所述的复合吸水芯体生产设备，其特征在于：包括用于生产疏水纺粘层（a）的第一机组（1）、用于生产疏水熔喷层（b）并将疏水熔喷层（b）与疏水纺粘层（a）复合的第二机组（2）、用于生产蓬松吸水层（c）的第三机组（3）、用于放卷疏导层（d）的第四机组（4）、用于放卷亲水非织造层（e）并将亲水非织造层（e）与其他结构叠合的第五机组（5）、用于复合多层结构的第六机组（6）。
5.根据权利要求4所述的一种复合吸水芯体生产设备，其特征在于：所述第一机组（1）包括纺丝机组（11）、第一成网机（12）、第一压合辊（13），所述纺丝机组（11）包括纺粘通道，所述纺粘通道下方设置所述第一成网机（12），所述纺粘通道的出料端设置第一压合辊（13）。
6.根据权利要求5所述的一种复合吸水芯体生产设备，其特征在于：所述第二机组（2）包括第一熔喷模头（21）、引导板（22）、第二成网机（23）、两第二压合辊（24）、第一热轧机（25），所述第一熔喷模头（21）正下方设置所述引导板（22），所述引导板（22）、第二成网机（23）、两第二压合辊（24）、第一热轧机（25）沿输送方向依次设置，所述引导板（22）横截面呈弧形结构，所述引导板（22）用于将第一熔喷模头（21）喷出的熔喷纤维引导输送第二成网机（23）上，两所述第二压合辊（24）用于压合疏水纺粘层（a）与疏水熔喷层（b），所述第一热轧机（25）用于复合疏水纺粘层（a）与疏水熔喷层（b）。
7.根据权利要求6所述的一种复合吸水芯体生产设备，其特征在于：所述第三机组（3）包括第二熔喷模头（31）、引导辊（32）、第三成网机（33）、涂胶辊（34）、振动给料箱（36）、振动电机（361）、布料辊（35）、两第三压合辊（38），所述引导辊（32）、第三成网机（33）、涂胶辊（34）、布料辊（35）、两第三压合辊（38）沿输送方向依次设置，所述引导辊（32）设置于第二熔喷模头（31）正下方，所述第二熔喷模头（31）用于向第三成网机（33）喷出并丝状的熔喷纤维，所述布料辊（35）表面成形有给料圆网（351），所述布料辊（35）正上方设置所述振动给料箱（36），所述振动电机（361）设置于振动给料箱（36）外侧壁上。
8.根据权利要求7所述的一种复合吸水芯体生产设备，其特征在于：所述第三机组（3）还包括挡料板（37），所述振动给料箱（36）外侧壁上设置所述挡料板（37），所述挡料板（37）呈弧形结构，所述挡料板（37）包裹布料辊（35）的后半侧用于防止SAP退出布料辊（35）。
9.根据权利要求8所述的一种复合吸水芯体生产设备，其特征在于：所述第五机组（5）包括放卷亲水非织造层（e）的第二放卷机（51）、用于引导亲水非织造层（e）输送的多条第二导布辊、用于将亲水非织造层（e）与其他结构叠合的两第四压合辊（52），所述第二放卷机（51）、多个第二导布辊、两第四压合辊（52）依次设置。
10.一种如权利要求9所述的复合吸水芯体生产方式，其特征在于：包括以下步骤：
S1.纺丝机组（11）向第一成网机（12）输送纺粘纤维，第一成网机（12）将纺粘纤维成形为疏水纺粘层（a），然后通过第一压合辊（13）将疏水纺粘层（a）预压服贴在第一成网机（12）上，再将形成的疏水纺粘层（a）输送至两第二压合辊（24）之间；
S2.第一熔喷模头（21）喷出熔喷纤维，然后通过引导板（22）引导至第二成网机（23）上形成疏水熔喷层（b），再依次通过两第二压合辊（24）与第一热轧机（25）将疏水纺粘层（a）与疏水熔喷层（b）压合；
S3.第二熔喷模头（31）喷出并丝状的熔喷纤维，然后通过第三成网机（33）形成熔喷布，再通过涂胶辊（34）对熔喷纤维进行涂胶；
S4.振动电机（361）带动振动给料箱（36）振动，使SAP均匀下落至给料圆网（351），然后通过布料辊（35）的转动将SAP均匀排布于步骤S3的熔喷布上，形成蓬松吸水层（c），再通过两第三压合辊（38）将步骤S2的复合体与蓬松吸水层（c）压合；
S5.第一放卷机（41）放卷疏导层（d），第二放卷机（51）放卷亲水非织造层（e），然后通过第四压合辊（52）将步骤S4的复合体、疏导层（d）、亲水非织造层（e）叠合，再通过第六机组（6）固结复合。
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