CN108130732B - 双亲非织造布及其制备方法 - Google Patents

双亲非织造布及其制备方法 Download PDF

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CN108130732B
CN108130732B CN201711409200.2A CN201711409200A CN108130732B CN 108130732 B CN108130732 B CN 108130732B CN 201711409200 A CN201711409200 A CN 201711409200A CN 108130732 B CN108130732 B CN 108130732B
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翁文伟
祝二斌
王伟
吴晓彪
戴飞
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Fujian Hengan Household Life Article Co Ltd
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Abstract

本发明公开一种双亲非织造布,包括非织造布基层,所述非织造布基层上设有若干亲水区和若干亲油区,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区和亲油区数量分别为30‑70个;每个区的面积为0.5‑3平方毫米;所述亲水区是通过在该区范围内的非织造布浸渗亲水整理剂形成的;所述亲油区是通过在该区范围内的非织造布浸渗亲油整理剂形成的。本发明双亲非织造布,通过交替排列的亲水区和亲油区,使得非织造布不但具有亲水性能,还具备亲油性能,能同时对水、油两种液体进行吸收、渗透,具有广泛的应用前景。

Description

双亲非织造布及其制备方法
技术领域
本发明涉及一种双亲非织造布及其制备方法。
背景技术
众所周知,非织造布应用领域非常广泛,其不但作为纸尿裤、卫生巾的表面材料,还作为湿巾擦拭布使用,但是传统的非织造布大多只能单纯的亲水或亲油,对于即有油性又有水性的液体吸收效果较差,不能很好的吸收这种液体。
发明内容
针对上述问题,本发明提供一种既能亲水又能亲油的双亲非织造布。
为达到上述目的,本发明一种双亲非织造布,包括非织造布基层,所述非织造布基层上设有若干亲水区和若干亲油区,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区和亲油区数量分别为30-70个;每个区的面积为0.5-3平方毫米;
所述亲水区是通过在该区范围内的非织造布浸渗亲水整理剂形成的;所述亲油区是通过在该区范围内的非织造布浸渗亲油整理剂形成的。
进一步地,所述非织造布基层包括上、下结合的第一纤网层和第二纤网层;所述第一纤网层由PE/PP纤维或PE/PEP纤维构成,纤维的纤度为6-12D;
所述第二纤网层由1-1.5D的细旦纤维构成,且所述细旦纤维为偏心结构,呈三维卷曲状,所述细旦纤维为PE/PET纤维。
进一步地,所述非织造布基层上设置有若干通孔,其中,所述每个亲油区和每个亲水区均至少有一个所述通孔或均与一通孔接触。
进一步地,所述各通孔面积为1-3mm2,开孔率50%-70%,所述通孔的形状为圆形、矩形或菱形。
进一步地,所述通孔为漏斗状,其沿着液体渗透方向孔径变小。
进一步地,所述亲油区的形状为矩形、正六边形或正八边形;所述亲水区的形状为矩形、正六边形或正八边形。
本发明双亲非织造布,通过交替排列的亲水区和亲油区,使得非织造布不但具有亲水性能,还具备亲油性能,能同时对水、油两种液体进行吸收,具有广泛的应用前景。
为达到上述目的,本发明一种双亲非织造布的制备方法,采用浸渗工艺将亲水整理剂和亲油整理剂分别浸渗在非织造布基层上,形成若干亲水区和若干亲油区,其中亲油区与亲水区相互交错排列。
进一步地,所述采用浸渗工艺的具体包括:
(1)在50-56℃的温度下,将粘度为6000-12000mPa.s的亲油整理剂涂覆在非织造布基层的表面,并使其渗透、进入到非织造布基层的内部形成亲油区,亲油整理时空气湿度为70%-85%;
(2)在20-30℃的温度下,将粘度为10000-15000mPa.s的亲水整理剂涂覆在非织造布基层表面,并使其渗透进入到非织造布基层的内部形成亲水区,亲水整理时空气湿度为50%-60%;
(3)将浸渗有亲油整理剂和亲水整理剂的非织造布基层通过导辊进入温度为60-80℃干燥箱内,经过收卷获得非织造布;
(4)将步骤(3)获得的非织造布置于温度为50-60℃的熟化室中,熟化时间4-6小时。
进一步地,还包括对非织造布基层进行打孔处理,具体为,以小于非织造布基层的厚度为深度进行第一次打孔,获得第一导流孔,在第一导流孔中心、以小于第一导流孔孔径为第二导流孔的孔径进行第二次打孔,并使第二导流孔穿透非织造布基层的剩余部分,形成漏斗状的通孔。
进一步的,在进行打孔处理时,还包括对第一导流孔的边缘和第二导流孔的边缘进行热熔塑化处理,以保持孔型。
进一步地,还包括对双亲非织造布进行二次浸渗工艺处理,所述二次工艺与所述浸渗工艺相同。
进一步地,所述非织造布基层的制备方法为:采用水刺、热风或热轧等工艺对第一纤网层和第二纤网层进行加固,获得非织造布基层。
进一步地,所述亲水性整理剂包括亲水单体丙烯酰胺、丙烯酸或甲基丙烯酸;
所述亲油性整理剂包括亲油单体十二烷基苯磺酸钠、苯乙烯或甲基丙烯酸十八烷基酯。
本发明双亲非织造布的制备方法,通过在非织造布基层涂刷亲油性整理剂形成亲油区,再通过涂刷亲水性整理剂形成亲水区,亲水区与亲油区交替排列,使制得的非织造布具有良好的亲水性和亲油性,利用设置的通孔使得水性或油性液体能够更好的渗透过双亲非织造布。
为达上述目的本发明提供一种用于制备双亲非织造布的装置,包括第一辊筒刷、第二辊筒刷、第三辊筒刷和第四辊筒刷;
所述第一辊筒刷和第二辊筒刷结构相同,其表面均设置有若干凸起部位,各所述凸起部位上设置有第一印刷头,所述第一印刷头上浸有亲油性整理剂。
所述第三辊筒刷和第四辊筒刷结构相同,其表面均设置有若干凸起部位,各所述凸起部位上设置有第二印刷头,所述第二印刷头上浸有亲水性整理剂。
进一步地,所述第一、二辊筒刷与第三、四辊筒刷的筒径相同长度也相同,且所述第一、二辊筒刷上的各凸起部位与第三、四辊筒刷上的凸起部位间的空隙相对应。
进一步地,所述第一印刷头的形状为矩形、正六边形或正八边形,所述第二印刷头的形状为矩形、正六边形或正八边形。
本发明用于制备双亲非织造布的辊筒刷,将非织造布基层夹设在第一辊筒刷和第二辊筒刷之间,两个辊筒刷上的各印刷头一一对应,分别从非织造布的两面对非织造布基层进行挤压,将印刷头上的亲油整理剂挤出并浸渗到非织造布基层中形成亲油区;然后同理利用第三辊筒刷和第四辊筒刷将亲水性整理剂浸渗到非织造布基层中形成亲水区,本装置涂刷效率高,结构简单且成本较低。
附图说明
图1为亲水区与亲油区位置关系示意图。
具体实施方式
本发明中所述的浸渗是指:在预定区域的非织造布上浸渗亲水或亲油整理剂。其中,浸渗特别是指亲水或亲油整理剂从A面渗透到B面,以保证非织造布两表面以及两表面之间的纤维中均浸渗有亲水或亲油亲水或亲油整理剂。
实施例1
结合图1,本实施例中提供一种双亲非织造布,包括非织造布基层,所述非织造布基层上设有若干亲水区1和若干亲油区2,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区和亲油区数量分别为50个;每个区的面积为1.5平方毫米;
所述亲水区是通过在该区范围内的非织造布浸渗亲水整理剂形成的;所述亲油区是通过在该区范围内的非织造布浸渗亲油整理剂形成的。
具体的,上述亲油区的形状为矩形、正六边形或正八边形;上述亲水区的形状为矩形、正六边形或正八边形;其中,相邻两个亲水区与亲油区之间的间隙范围为0.3-0mm,较佳的,相邻两个亲水区与亲油区的之间的间隙为零毫米。
实施例2
作为实施例1的具体方案,本实施例中非织造布基层包括上、下结合的第一纤网层和第二纤网层;上述第一纤网层由PE/PEP纤维构成,纤维的纤度为8D;
上述第二纤网层由1.5D的细旦纤维构成,且上述细旦纤维为偏心结构,呈三维卷曲状,上述细旦纤维为PE/PET纤维。
实施例3
在实施例1的基础上、作为实施例1的进一步改进,本实施例中非织造布基层上设置有若干通孔3,其中,所述每个亲油区和每个亲水区均至少有一个所述通孔或均与一通孔接触。
具体的,各通孔面积为2mm2,开孔率60%,通孔的形状为圆形、矩形或菱形。
具体的,通孔为漏斗状,其靠近人体侧的孔径大于背离人体侧的孔径,可以防止尿液或经血倒流。
实施例4
结合图1,作为上述实施例的具体方案,本实施例中非织造布基层上设有若干亲水区和若干亲油区,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区1和亲油区2数量分别为50个;每个区的面积为1.5平方毫米;亲水区和亲油区均为正方形;非织造布基层上设置有若干圆形通孔3,其中,所述每个亲油区和每个亲水区均至少有一个所述通孔或均与一通孔接触,各通孔面积为2mm2,开孔率60%;本实施例中非织造布基层包括上、下结合的第一纤网层和第二纤网层;所述第一纤网层由PE/PP纤维构成,纤维的纤度为8D;上述第二纤网层由1D的细旦纤维构成,细旦纤维为偏心结构,呈三维卷曲状,所述细旦纤维为PE/PET纤维。
实施例5
本实施例中提供一种双亲非织造布,作为上述实施例的具体方案,本实施例中非织造布基层上设有若干亲水区和若干亲油区,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区和亲油区数量分别为40个;每个区的面积为1平方毫米;亲水区和亲油区均为正方形;非织造布基层上设置有若干圆形通孔,其中,所述每个亲油区和每个亲水区均至少有一个所述通孔或均与一通孔接触,各通孔面积为1mm2,开孔率70%;本实施例中非织造布基层包括上、下结合的第一纤网层和第二纤网层;所述第一纤网层由PE/PP纤维构成,纤维的纤度为10D;上述第二纤网层由1.5D的细旦纤维构成,细旦纤维为偏心结构,呈三维卷曲状,所述细旦纤维为PE/PET纤维。
将4层经裁切的无尘纸平放在平台上,然后将待测非织造布对齐平放在无尘纸上面。用适量的测试液(生理盐水或人工血)润洗漏斗,并用测试液洗漏斗两次,放掉漏斗中的溶液。用刻度移液管准确移取测试溶液5mL放在漏斗中,调节漏斗高度,使其下口的最下端距试样表面5-10mm,然后迅速打开漏斗阀门至最大,并开始计时,待最后一滴测试液吸收后快速按下秒表,记录为吸收时间。待5分钟后,迅速将直径110mm,已知质量W1的滤纸放在非织造布的表面,同时将2.5kg的标准压块压于滤纸上,加压2分钟后将压块移去,用天平称滤纸的质量W2。按以上方法重复3次,记录第三次的测试结果。回渗量(g)=滤纸吸液后的质量W2(g)—滤纸吸收前的质量W1(g);
将5ml的生理盐水和5ml的人工血分别倒在实施例4、实施例5中的双亲非织造布上,进行吸収速度和回渗量检测;,实验结果如下表;
Figure BDA0001520945040000061
Figure BDA0001520945040000071
通过测验可知,本发明双亲非织造布,不但具有亲水性能,还具备亲油性能,能同时对水、油两种液体进行吸收,且吸收效果好。
实施例6
本实施例提供一种双亲非织造布的制备方法,包括如下步骤:采用浸渗工艺将亲水整理剂和亲油整理剂分别浸渗在非织造布基层上,形成若干亲水区和若干亲油区,其中亲油区与亲水区相互交错排列。
具体的,上述浸渗工艺的具体包括:
(1)在50-56℃的温度下,将粘度为6000-12000mPa.s的亲油整理剂涂覆在非织造布基层的表面,并使其渗透、进入到非织造布基层的内部形成亲油区,亲油整理时空气湿度为70%-85%;
(2)在20-30℃的温度下,将粘度为10000-15000mPa.s的亲水整理剂涂覆在非织造布基层表面,并使其渗透进入到非织造布基层的内部形成亲水区,亲水整理时空气湿度为50%-60%。
(3)将浸渗有亲油整理剂和亲水整理剂的非织造布基层通过导辊进入温度为60-80℃干燥箱内,经过收卷获得非织造布;
(4)将步骤(3)获得的非织造布置于温度为50-60℃的熟化室中,熟化时间4-6小时。
具体的,还包括对非织造布基层进行打孔处理,具体为,以小于非织造布基层的厚度为深度进行第一次打孔,获得第一导流孔,在第一导流孔中心、以小于第一导流孔孔径为第二导流孔的孔径进行第二次打孔,并使第二导流孔穿透非织造布基层剩余部分,形成漏斗状的通孔。
其中,在进行打孔处理时,还包括对第一导流孔的边缘和第二导流孔的边缘进行热熔塑化处理,以保持孔型。
具体的,还包括对双亲非织造布进行二次浸渗工艺处理,所述二次浸渗工艺与所述浸渗工艺相同。
本实施例中也可以根据实际需求对非织造布基层进行二次浸渗工艺处理,二次浸渗工艺与上述浸渗工艺相同。
本实施例中,亲水性整理剂包括亲水单体丙烯酰胺、丙烯酸或甲基丙烯酸;亲油性整理剂包括亲油单体十二烷基苯磺酸钠、苯乙烯或甲基丙烯酸十八烷基酯。
实施例7
作为实施例的具体方案,非织造布基层的制备方法为:采用水刺、热风或热轧等工艺对第一纤网层和第二纤网层进行加固,获得非织造布基层。本实施例中第一纤网层由纤度10D的PE/PP纤维构成;第二纤网层由1D的PE/PET纤维构成,PE/PET纤维为偏心结构,呈三维卷曲状。
实施例8
本实施例提供一种用于制备双亲非织造布的装置,包括第一辊筒刷、第二辊筒刷、第三辊筒刷和第四辊筒刷;
上述第一辊筒刷和第二辊筒刷结构相同,其表面均设置有若干凸起部位,各上述凸起部位上设置有第一印刷头,上述第一印刷头上浸有亲油性整理剂。
上述第三辊筒刷和第四辊筒刷结构相同,其表面均设置有若干凸起部位,各上述凸起部位上设置有第二印刷头,上述第二印刷头上浸有亲水性整理剂。
具体的,上述第一、二辊筒刷与第三、四辊筒刷的筒径相同长度也相同,且所述第一、二辊筒刷上的各凸起部位与第三、四辊筒刷上的凸起部位间的空隙相对应。
具体的,上述第一印刷头的形状为矩形、正六边形或正八边形,上述第二印刷头的形状为矩形、正六边形或正八边形。
本实施例用于制备双亲非织造布的装置,在使用时:将非织造布基层夹设在第一辊筒刷和第二辊筒刷之间,第一辊筒刷的印刷头和第二辊筒刷的印刷头一一对应,然后使第一辊筒刷和第二辊筒刷沿相反的方向同步转动对非织造布基层进行辊压,辊筒刷印刷头上的亲水性整理剂则涂刷、渗进非织造布基层中形成亲油区,同理利用第三辊筒刷和第四辊筒刷将亲水性整理剂涂刷在非织造布基层上形成亲水区,在涂刷时,第一、二辊筒刷刷头的位置与第三、四辊筒刷刷头的位置错开。
本发明用于制备双亲非织造布的装置,将非织造布基层夹设在第一辊筒刷和第二辊筒刷之间,两个辊筒刷上的各印刷头一一对应,分别从非织造布的两面涂刷亲水性整理剂形成亲水区;然后同理利用第三辊筒刷和第四辊筒刷涂刷亲油性整理剂形成亲油区,本装置涂刷效率高,结构简单且成本较低。
以上,仅为本发明的较佳实施例,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应该以权利要求所界定的保护范围为准。

Claims (2)

1.一种双亲非织造布的制备方法,其特征在于,所述非织造布基层上设有若干亲水区和若干亲油区,所述亲水区与所述亲油区相互交错排列;其中,每平方厘米中的亲水区和亲油区数量分别为30-70个;每个区的面积为0.5-3平方毫米;
所述亲水区是通过在该区范围内的非织造布浸渗亲水整理剂形成的;所述亲油区是通过在该区范围内的非织造布浸渗亲油整理剂形成的;
所述非织造布基层包括上、下结合的第一纤网层和第二纤网层;所述第一纤网层由PE/PP纤维或PE/PEP纤维构成,纤维的纤度为6-12D;
所述第二纤网层由1-1.5 D的细旦纤维构成,且所述细旦纤维为偏心结构,呈三维卷曲状,所述细旦纤维为PE/PET纤维;
所述非织造布基层上设置有若干通孔,其中,所述每个亲油区和每个亲水区均至少有一个所述通孔或均与一通孔接触;所述各通孔面积为1-3mm2,开孔率50%-70%,所述通孔的形状为圆形、矩形或菱形;
所述通孔为漏斗状,其沿着液体渗透方向孔径变小;
所述的制备方法包括如下步骤:采用浸渗工艺将亲水整理剂和亲油整理剂分别浸渗在非织造布基层上,形成若干亲水区和若干亲油区,其中亲油区与亲水区相互交错排列;
所述采用浸渗工艺具体包括:
(1)在50-56℃的温度下,将粘度为6000-12000 mPa.s的亲油整理剂涂覆在非织造布基层的表面,并使其渗透、进入到非织造布基层的内部形成亲油区,亲油整理时空气湿度为70%-85%;
(2)在20-30℃的温度下,将粘度为10000-15000mPa.s的亲水整理剂涂覆在非织造布基层表面,并使其渗透进入到非织造布基层的内部形成亲水区,亲水整理时空气湿度为50%-60%;
(3)将浸渗有亲油整理剂和亲水整理剂的非织造布基层通过导辊进入温度为60-80℃干燥箱内,经过收卷获得非织造布;
(4)将步骤(3)获得的非织造布置于温度为50-60℃的熟化室中,熟化时间4-6小时;
还包括对非织造布基层进行打孔处理,具体为,以小于非织造布基层的厚度为深度进行第一次打孔,获得第一导流孔,在第一导流孔中心、以小于第一导流孔孔径为第二导流孔的孔径进行第二次打孔,并使第二导流孔穿透非织造布基层剩余部分,形成漏斗状的通孔;
所述采用浸渗工艺的使用的装置包括第一辊筒刷、第二辊筒刷、第三辊筒刷和第四辊筒刷;
所述第一辊筒刷和第二辊筒刷结构相同,其表面均设置有若干凸起部位,各所述凸起部位上设置有第一印刷头,所述第一印刷头上浸有亲油性整理剂;
所述第三辊筒刷和第四辊筒刷结构相同,其表面均设置有若干凸起部位,各所述凸起部位上设置有第二印刷头,所述第二印刷头上浸有亲水性整理剂。
2.根据权利要求1所述的双亲非织造布的制备方法,其特征在于,所述非织造布基层的制备方法为:采用水刺、热风或热轧工艺对第一纤网层和第二纤网层进行加固,获得非织造布基层。
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