CN118490450B - 一种防勒婴儿纸尿裤及其制备方法 - Google Patents
一种防勒婴儿纸尿裤及其制备方法 Download PDFInfo
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Abstract
本发明涉及一次性卫生用品领域,具体涉及一种防勒婴儿纸尿裤及其制备方法,解决了纸尿裤产品腿围处容易出现勒痕的问题,包括层叠设置的透液性面层、吸收芯体及不透液底层,定义纸尿裤的宽度方向为X向,长度方向为Y向,以人体穿着时的位置又分为前腹侧、裆部及后背侧,裆部两侧为腿部开口,所述透液性面层与不透液性底层之间设有腿围垫层,所述腿围垫层包括底布、设于底布上并沿所述腿部开口延伸且对称分布的前侧弹性件、后侧弹性件,所述前侧弹性件具有靠近裆部的前裆端及靠近腰部位置的前腹端,所述后侧弹性件具有靠近裆部的后裆端及靠近腰围位置的后背端,所述前腹端及后背端延伸至纸尿裤的Y向两端端部。
Description
技术领域
本发明涉及一次性卫生用品领域,具体涉及一种防勒婴儿纸尿裤及其制备方法。
背景技术
在纸尿裤产品中,为了提高穿着时的贴合性,需要在腰围的一侧或两侧、以及腿围处设置弹性件,以保证产品具有弹力以支撑吸收芯吸液后的重量及外形膨胀;其具体结构如中国专利公告号为CN211433704U的技术方案所示,包括裤体,所述裤体包括透液性面层、不透液性底层及设于两者之间的吸收体,所述透液性面层的横向两侧设有防漏的立体腿围及立体护围,所述立体腿围由波浪形的腿围橡筋粘附于裤体上成型,所述立体护围包括粘设于裤体上的立体护围无纺布、粘设于立体护围无纺布上的立体护围内衬无纺布及夹设于两者之间的3~8条立体护围橡筋,定义裤体具有沿纵向方向的前腰区、裆区、后腰区,所述前腰区上设有前腰贴,所述后腰区的中部处设有腰围橡筋,所述后腰区的左右两侧上分别设有左右腰贴,所述立体护围在裤体摊平且拉直的状态时成平直条状,当裤体不施加外力时,所述立体护围成Ω形状。
传统结构下,腿围处受限于生产工艺及位置尺寸等因素,需要在弹性件数量较少的情况下保证具有足够的弹性,故而腿围的弹性件选择时,单根需具有足够的旦数,而这一条件限制下,容易对消费者的腿部穿着位置形成勒痕,而影响使用时的舒适性。
发明内容
因此,本发明提供一种防勒婴儿纸尿裤及其制备方法,解决了纸尿裤产品腿围处容易出现勒痕的问题。
为达到上述目的,本发明是通过以下技术方案实现的:
一种防勒婴儿纸尿裤,包括层叠设置的透液性面层、吸收芯体及不透液底层,定义纸尿裤的宽度方向为X向,长度方向为Y向,以人体穿着时的位置又分为前腹侧、裆部及后背侧,裆部两侧为腿部开口,所述透液性面层与不透液性底层之间设有腿围垫层,所述腿围垫层包括底布、设于底布上并沿所述腿部开口延伸且对称分布的前侧弹性件、后侧弹性件,所述前侧弹性件具有靠近裆部的前裆端及靠近腰部位置的前腹端,所述后侧弹性件具有靠近裆部的后裆端及靠近腰围位置的后背端,所述前腹端及后背端延伸至纸尿裤的Y向两端端部;
所述底布的中心处设有通槽,以使所述吸收芯体吸液膨胀后具有伸缩空间;
所述通槽的X方向两侧的所述底布与所述不透液底层不相固接,以使位于裆部的所述腿围垫层游离设置于所述吸收芯体与所述不透液底层之间。
优选的,位于纸尿裤Y向一端或两端的所述透液性面层与不透液性底层之间设有弹性腰围,所述前腹端和/或后背端与所述弹性腰围相固接。
优选的,所述前腹端、后背端的端部具有朝向纸尿裤X向中心线延伸的反曲端。
优选的,所述前裆端的延伸长度小于后裆端的延伸长度。
一种应用于上述防勒婴儿纸尿裤的制备方法,包括以下步骤:
S1、取不透液底层材料进行流水线输送,其输送方向为Y方向;
S2、制备腿围垫层,将腿围垫层布设于所述不透液底层材料上;
S3、预先制备吸收芯,将所得的吸收芯沿Y方向放卷,而后分切形成单个吸收芯体,并附于所述腿围垫层上;
S4、取透液性面层材料沿Y方向进行流水线输送,将其覆盖于步骤S3所得制品上表面,并在X方向两侧边缘布设粘接扣,而后将透液性面层材料与步骤S3所得制品与固接呈一体;
S5、将步骤S4所得制品的X方向两侧边缘进行弧切,以形成纸尿裤的腿围开口;
S6、将步骤S5所得制品进行分切,获得单个纸尿裤产品;
所述步骤S2包括以下步骤:
S21、取底布材料沿X方向进行输送,并在底布上通过一曲线橡筋施加机构布设两组曲线橡筋;
S22、将步骤S21的底布材料上进行裁切,以使两组曲线橡筋分别形成所述前侧弹性件、后侧弹性件;
S23、将步骤S22所得制品进行分切成单个腿围垫层,并经90度转向后等间距布设在所述不透液底层材料上。
优选的,上述步骤S3与步骤S4之间还包括步骤S31:预先制备弹性腰围,将所述弹性腰围沿X方向延伸并布设于吸收芯的Y方向一侧或两侧端,且与所述不透液底层、腿围垫层相固接。
优选的,所述步骤S21中,两组曲线橡筋不对称分布以使所形成的前侧弹性件、后侧弹性件的尺寸不同。
优选的,所述步骤S21中,两组曲线橡筋对称分布;所述步骤S22中,裁切位置不位于两组曲线橡筋的对称中心以使所形成的前侧弹性件、后侧弹性件的尺寸不同。
优选的,所述步骤S22中,裁切的宽度由前侧弹性件一侧向后侧弹性件一侧逐渐减小。
优选的,上述步骤S21中,所述曲线橡筋施加机构包括机架,设于机架上用于调整橡筋施加方向的导向组件,所述导向组件包括成对设置的摆动电机以及安装在所述摆动电机输出端处的第一摆臂、铰接安装在所述第一摆臂自由端的第二摆臂,所述第一摆臂上设有用于限制所述第二摆臂摆动角度的限位块,待布设橡筋经由第一摆臂延伸至第二摆臂的末端输出。
通过采用前述技术方案,本发明的有益效果是:
本技术方案不同于传统的纸尿裤产品结构,改进了腿围橡筋的布设形式,使整个产品的腿围橡筋在底布的承载下形成一个统一的腿围垫层,在与不透液底层、透液性面层以及吸收芯体复合后可形成一个整体的承托结构,不易形成单一侧的形变,保证了承托性及防侧漏功能;腿围垫层在结构上,前侧弹性件、后侧弹性件均为成对且不相连接的弹性件结构布置,且均未延伸至纸尿裤的裆部位置的两侧端,且前侧弹性件、后侧弹性件之间亦不相连接,形成位于裆部四个边角位置的独立弹性支撑,婴儿腿部的两侧不具备弹性件的布置,进而避免了大腿根部位置形成勒痕,四周的弹性件对于裆部位置的均具有足够的弹性拉力,在吸收芯体吸液而膨胀后,也能够具有足够的结构保持力,使结构上具备充分支撑性的前提下又能兼顾腿围的舒适性;通槽的结构,能够在底布对于吸收芯体提供足够承托的前提下,使得吸收芯体在吸液后能够具有一定的膨胀空间,同时也减少了该位置的层叠结构,进而避免层数过大而影响透气性,特别是采用弹性无纺布时,可极大的保证产品的整体透气性;
工艺上,通过曲线橡筋施加设备,形成循环布置在底布的两组曲线橡筋结构,而后根据尺寸及设计需求裁去中间部分,进而形成所需的四个位置独立的前侧弹性件、后侧弹性件的分布结构,避免了对于设备的大范围改动,简化调整成本,实用性强。
附图说明
图1为本发明纸尿裤的平面结构示意图。
图2为本发明纸尿裤的成型过程结构示意图(未示出弹性腰围的复合过程)。
图3为曲线橡筋施加机构的结构示意图。
附图标记:100、透液性面层;200、吸收芯体;300、不透液底层;400、腿部开口;500、弹性腰围;600、粘接扣;700、摆动电机;701、第一摆臂;702、第二摆臂;1、腿围垫层;11、底布;111、通槽;12、前侧弹性件;12a、前裆端;12b、前腹端;13、后侧弹性件;13a、后裆端;13b、后背端;13c、延伸区域;13d、反曲端;a、前腹侧;b、裆部;c、后背侧。
具体实施方式
以下将结合具体实施例来详细说明本发明的实施方式,借此对本发明如何应用技术手段来解决技术问题,并达成技术效果的实现过程能充分理解并据以实施。
参考图1及图2,一种防勒婴儿纸尿裤,包括层叠设置的透液性面层100、吸收芯体200及不透液底层300,定义纸尿裤的宽度方向为X向,长度方向为Y向,以人体穿着时的位置又分为前腹侧a、裆部b及后背侧c,裆部b两侧为腿部开口400,所述透液性面层100与不透液性底层之间设有腿围垫层1,所述腿围垫层1包括底布11、设于底布11上并沿所述腿部开口400延伸且对称分布的前侧弹性件12、后侧弹性件13,所述前侧弹性件12、后侧弹性件13均由三条弹性件间隔分布组成;结构上,所述底布11可以根据产品需求而选择不同的尺寸及材质,例如,可以采用弹性无纺布的形式,以省去传统的弹性腰围500;也可以采用拒水无纺布,以增加产品的整体拒水、防压渗作用;又可以采用亲水、导流无纺布所采用的相应材质,以增加导流及吸收性。
同时,所述底布11的中心处设有通槽111,以使所述吸收芯体吸液膨胀后具有伸缩空间;所述通槽的X方向两侧的所述底布与所述不透液底层不相固接,以使位于裆部的所述腿围垫层游离设置于所述吸收芯体与所述不透液底层之间。此处设计的通槽111结构,能够在对于吸收芯体200提供足够承托的前提下,使得吸收芯体200在吸液后能够具有一定的膨胀空间,同时也减少了该位置的层叠结构,进而避免层数过大而影响透气性,特别是采用弹性无纺布时,可极大的保证产品的整体透气性。
其中,所述前侧弹性件12具有靠近裆部b的前裆端12a及靠近腰部位置的前腹端12b,所述后侧弹性件13具有靠近裆部b的后裆端13a及靠近腰围位置的后背端13b,所述前腹端12b及后背端13b延伸至纸尿裤的Y向两端端部。
具体的,所述前裆端12a靠近所述腿部开口400的边缘而设置,而所述后裆端13a则与所述腿部开口400的边缘之间形成延伸区域13c,以适应婴儿臀部,这一延伸区域13c增加对于臀部区域的覆盖面,进一步提高结构支撑作用,也保证了臀部位置产品的贴合度。本技术方案不同于传统的纸尿裤产品结构,改进了腿围橡筋的布设形式,使整个产品的腿围橡筋在底布11的承载下形成一个统一的腿围垫层1,在与不透液底层300、透液性面层100以及吸收芯体200复合后可形成一个整体的承托结构,不易形成单一侧的形变,保证了承托性及防侧漏功能;腿围垫层1在结构上,前侧弹性件12、后侧弹性件13均为成对且不相连接的弹性件结构布置,且均未延伸至纸尿裤的裆部b位置的两侧端,且前侧弹性件12、后侧弹性件13之间亦不相连接,形成位于裆部b四个边角位置的独立弹性支撑,婴儿腿部的两侧不具备弹性件的布置,进而避免了大腿根部位置形成勒痕,四周的弹性件对于裆部b位置的均具有足够的弹性拉力,在吸收芯体200吸液而膨胀后,也能够具有足够的结构保持力,使结构上具备充分支撑性的前提下又能兼顾腿围的舒适性。
本实施例中,底布11以普通的无纺布为例:故而可在位于纸尿裤Y向一端或两端的所述透液性面层100与不透液性底层之间设有弹性腰围500,所述前腹端12b和/或后背端13b与所述弹性腰围500相固接(以后背端13b布设弹性腰围500为例);结构上,前侧弹性件12、后侧弹性件13上的前腹端12b、后背端13b与弹性腰围500具有结构上的连接,一来可增加腿围垫层1对于产品的结构支撑性,二来腿围垫层1与弹性腰围500之间的连接,使得弹性腰围500的腰侧的髋骨突起位置的弹力被一定程度的抵消,进而也从结构上提高弹性腰围500的舒适性;相应的,所述前腹端12b、后背端13b的端部具有朝向纸尿裤X向中心线延伸的反曲端13d,其中,可通过调整反曲端13d的弧线延伸方向,以调整弹性腰围500沿X方向的弹力分布,进而适应人体腰侧的具体人体弧线。
本实施例中,所述前裆端12a的延伸长度小于后裆端13a的延伸长度;同样的,也是为了符合人体工学,前裆端12a由于人体腿部的运动作用,减少弹力,以避免出现摩擦,而后裆端13a则需要保证足够的范围覆盖,以满足结构支撑的要求。
在上述产品结构的基础上,以下述方式进行生产。
一种防勒婴儿纸尿裤的制备方法,包括以下步骤:
S1、取不透液底层300材料进行流水线输送,其输送方向为Y方向;
S2、制备腿围垫层1,将腿围垫层1布设于所述不透液底层300材料上;所述步骤S2包括以下步骤:
S21、取底布11材料沿X方向进行输送,并在底布11上布设两组曲线橡筋;具体的,传统曲线橡筋施加机构的基础结构参见公开号为 CN106137547A的技术方案;而在此基础上,本技术方案的曲线橡筋施加机构参考图3,其包括机架,设于机架上用于调整橡筋施加方向的导向组件,所述导向组件包括成对设置的摆动电机700以及安装在所述摆动电机700输出端处的第一摆臂701、铰接安装在所述第一摆臂701自由端的第二摆臂702,所述第一摆臂701上设有用于限制所述第二摆臂702摆动角度的限位块,待布设橡筋经由第一摆臂701延伸至第二摆臂702的末端输出。结构上,采用双节摆臂的形式,对于第二摆臂702通过限位块进行限制摆动幅度,第二摆臂702在第一摆臂701的摆动过程中随着惯性而增加橡筋的输出角度,可形成更大幅度的橡筋施胶调整区间,以满足橡筋的布置需求;
S22、将步骤S21的底布11材料上进行裁切,以使两组曲线橡筋分别形成所述前侧弹性件12、后侧弹性件13;在裁切过程中,采用辊切的形式,将上述步骤S21所施加的两组曲线橡筋的其余多余部分(靠近Y向两侧端部的部分)进行同步切除,以满足形成上述反曲端13d的结构;
此处,形成所述前侧弹性件12、后侧弹性件13时可采用两种具体的形式:
①、所述步骤S21中,两组曲线橡筋不对称分布以使所形成的前侧弹性件12、后侧弹性件13的尺寸不同;这样在生产中,需要调整曲线橡筋的施加结构,以形成不对称的曲线橡筋分布线,而后再进行单片腿围垫层1的分切;
②、所述步骤S21中,两组曲线橡筋对称分布;所述步骤S22中,裁切位置不位于两组曲线橡筋的对称中心以使所形成的前侧弹性件12、后侧弹性件13的尺寸不同。这样在设备上,可不调整单独一侧的曲线橡筋,通过不对称的裁切,即可获得相应结构,设备的调整更为简单。
例如:当纸尿裤产品适用于男性宝宝时,吸收芯体200的上半部分会率先形变,进而在所述步骤S22中,裁切的宽度由前侧弹性件12一侧向后侧弹性件13一侧逐渐减小;并以此为例,可进行相应的调整,生产灵活性强。
而通过裁切改变弹性件分布的形式,对于生产的便利性具有极大的提高;常规生产线下,为了保证曲线橡筋的完整以及结合稳定,需要充分的施胶,并对于施加设备的结构多次调整才能获得相应的橡筋结构,而这一形式在纸尿裤产品尺寸确定的前提下,调整裁切结构(即通槽111的外形),即可获得不同的曲线橡筋外形,并且,通槽111的外形也可以适用于对于支撑性的调整考量:
S23、将步骤S22所得制品进行分切成单个腿围垫层1,并经90度转向后等间距布设在所述不透液底层300材料上;
S3、预先制备吸收芯,将所得的吸收芯沿Y方向放卷,而后分切形成单个吸收芯体200,并附于所述腿围垫层1上;
S4、取透液性面层100材料沿Y方向进行流水线输送,将其覆盖于步骤S3所得制品上表面,并在X方向两侧边缘布设粘接扣600,而后将透液性面层100材料与步骤S3所得制品与固接呈一体;
S5、将步骤S4所得制品的X方向两侧边缘进行弧切,以形成纸尿裤的腿围开口,这一弧切所形成的腿围开口也并非半圆形,而是符合人体工学的弧线形,以满足腿部开口400处形成延伸区域13c,以及腿部位置形状足够的退让;
S6、将步骤S5所得制品进行分切,获得单个纸尿裤产品;
工艺上,通过曲线橡筋施加设备,形成循环布置在底布11的两组曲线橡筋结构,而后根据尺寸及设计需求裁去中间部分,进而形成所需的四个位置独立的前侧弹性件12、后侧弹性件13的分布结构,避免了对于设备的大范围改动,简化调整成本,实用性强。
其中,上述步骤S3与步骤S4之间还包括步骤S31:预先制备弹性腰围500,将所述弹性腰围500沿X方向延伸并布设于吸收芯的Y方向一侧或两侧端,且与所述不透液底层300、腿围垫层1相固接,这样,弹性腰围500与腿围垫层1将吸收芯体200夹设其中,以形成Y方向两端的完整弹性结构。步骤S3中,吸收芯体200的Y向两端不延伸至纸尿裤的端部,减少对于弹性腰围500的弹性影响;所述弹性腰围500可以生产线外生产后进行放卷作业,也可以集成在生产线上进行线上生产复合。
尽管结合优选实施方案具体展示和介绍了本发明,但所属领域的技术人员应该明白,在不脱离所附权利要求书所限定的本发明的精神和范围内,在形式上和细节上可以对本发明做出各种变化,均为本发明的保护范围。
Claims (10)
1.一种防勒婴儿纸尿裤,包括层叠设置的透液性面层(100)、吸收芯体(200)及不透液底层(300),定义纸尿裤的宽度方向为X向,长度方向为Y向,以人体穿着时的位置又分为前腹侧(a)、裆部(b)及后背侧(c),裆部(b)两侧为腿部开口(400),其特征在于:所述透液性面层(100)与不透液底层之间设有腿围垫层(1),所述腿围垫层(1)包括底布(11)、设于底布(11)上并沿所述腿部开口(400)延伸且对称分布的前侧弹性件(12)、后侧弹性件(13),所述前侧弹性件(12)具有靠近裆部(b)的前裆端(12a)及靠近腰部位置的前腹端(12b),所述后侧弹性件(13)具有靠近裆部(b)的后裆端(13a)及靠近腰围位置的后背端(13b),所述前腹端(12b)及后背端(13b)延伸至纸尿裤的Y向两端端部;前侧弹性件、后侧弹性件均未延伸至纸尿裤的裆部位置的两侧端;
所述底布(11)的中心处设有通槽(111),以使所述吸收芯体(200)吸液膨胀后具有伸缩空间;
所述通槽(111)X方向两侧的所述底布(11)与所述不透液底层(300)不相固接,以使位于裆部(b)的所述腿围垫层(1)游离设置于所述吸收芯体(200)与所述不透液底层(300)之间。
2.根据权利要求1所述的一种防勒婴儿纸尿裤,其特征在于:位于纸尿裤Y向一端或两端的所述透液性面层(100)与不透液性底层之间设有弹性腰围(500),所述前腹端(12b)和/或后背端(13b)与所述弹性腰围(500)相固接。
3.根据权利要求1所述的一种防勒婴儿纸尿裤,其特征在于:所述前腹端(12b)、后背端(13b)的端部具有朝向纸尿裤X向中心线延伸的反曲端(13d)。
4.根据权利要求1所述的一种防勒婴儿纸尿裤,其特征在于:所述前裆端(12a)的延伸长度小于后裆端(13a)的延伸长度。
5.一种根据权利要求1所述的防勒婴儿纸尿裤的制备方法,其特征在于,包括以下步骤:
S1、取不透液底层(300)材料进行流水线输送,其输送方向为Y方向;
S2、制备腿围垫层(1),将腿围垫层(1)布设于所述不透液底层(300)材料上;
S3、预先制备吸收芯,将所得的吸收芯沿Y方向放卷,而后分切形成单个吸收芯体(200),并附于所述腿围垫层(1)上;
S4、取透液性面层(100)材料沿Y方向进行流水线输送,将其覆盖于步骤S3所得制品上表面,并在X方向两侧边缘布设粘接扣(600),而后将透液性面层(100)材料与步骤S3所得制品固接呈一体;
S5、将步骤S4所得制品的X方向两侧边缘进行弧切,以形成纸尿裤的腿围开口;
S6、将步骤S5所得制品进行分切,获得单个纸尿裤产品;
所述步骤S2包括以下步骤:
S21、取底布(11)材料沿X方向进行输送,并在底布(11)上通过一曲线橡筋施加机构布设两组曲线橡筋;
S22、将步骤S21的底布(11)材料进行裁切,以使两组曲线橡筋分别形成所述前侧弹性件(12)、后侧弹性件(13);
S23、将步骤S22所得制品进行分切成单个腿围垫层(1),并经90度转向后等间距布设在所述不透液底层(300)材料上。
6.根据权利要求5所述的防勒婴儿纸尿裤的制备方法,其特征在于:上述步骤S3与步骤S4之间还包括步骤S31:预先制备弹性腰围(500),将所述弹性腰围(500)沿X方向延伸并布设于吸收芯的Y方向一侧或两侧端,且与所述不透液底层(300)、腿围垫层(1)相固接。
7.根据权利要求5所述的防勒婴儿纸尿裤的制备方法,其特征在于:所述步骤S21中,两组曲线橡筋不对称分布以使所形成的前侧弹性件(12)、后侧弹性件(13)的尺寸不同。
8.根据权利要求5所述的防勒婴儿纸尿裤的制备方法,其特征在于:所述步骤S21中,两组曲线橡筋对称分布;所述步骤S22中,裁切位置不位于两组曲线橡筋的对称中心以使所形成的前侧弹性件(12)、后侧弹性件(13)的尺寸不同。
9.根据权利要求5所述的防勒婴儿纸尿裤的制备方法,其特征在于:所述步骤S22中,裁切的宽度由前侧弹性件(12)一侧向后侧弹性件(13)一侧逐渐减小。
10.根据权利要求5所述的防勒婴儿纸尿裤的制备方法,其特征在于:上述步骤S21中,所述曲线橡筋施加机构包括机架,设于机架上用于调整橡筋施加方向的导向组件,所述导向组件包括成对设置的摆动电机(700)以及安装在所述摆动电机(700)输出端处的第一摆臂(701)、铰接安装在所述第一摆臂(701)自由端的第二摆臂(702),所述第一摆臂(701)上设有用于限制所述第二摆臂(702)摆动角度的限位块,待布设橡筋经由第一摆臂(701)延伸至第二摆臂(702)的末端输出。
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