CN107747164B - 一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法 - Google Patents

一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法 Download PDF

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CN107747164B
CN107747164B CN201710933024.6A CN201710933024A CN107747164B CN 107747164 B CN107747164 B CN 107747164B CN 201710933024 A CN201710933024 A CN 201710933024A CN 107747164 B CN107747164 B CN 107747164B
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范臻
孟健
张莅
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Changshu Wanlong Machinery Co ltd
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    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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Abstract

本发明公开了一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法,包括:涤纶纤维层、通孔和亲水性吸水膨胀料,所述涤纶纤维层上下表面均设置有通孔,所述亲水性吸水膨胀料设置于涤纶纤维层内部及上下表面,所述电缆光缆膨胀阻水带用超薄型无纺布经无纺设备开松、梳理、铺网、再梳理、热轧、刺孔、成卷和浸料制得。通过上述方式,本发明提供的一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法,使电缆遇水及潮气进入时快速膨胀,阻止水分进入,达到安全效果,且大大降低电缆光缆的外包材料成本。

Description

一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法
技术领域
本发明涉及布料领域,特别是涉及一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法。
背景技术
无纺布由于其工艺流程短、生产速度快捷、产量高、成本低等特点而被广泛采用,电缆光缆中阻水带也采用无纺布作基布加吸水膨胀材料制成。电缆光缆是城市电力、通讯线路中必不可少的输送工具,但在敷设或维修过程中受到外办界机械压力,有时会引起水和湿气的进入,水和潮气侵入电缆光缆内部,会导致断线、绝缘性下降。为了保证光缆电缆安全运行及延长使用寿命,对阻水带制造方法国内外已作多种研究开发。
目前国内阻水带加工方法,有夹层法,以无纺布为基带,然后将吸水剂与填充物均匀地散在布上,再用一层布盖住压辊成卷材,该制造方法对无纺布要求克重较大,必须包住填充物;也有涂敷法,利用胶粘剂使吸水聚合物附在无纺布,经加热后得到片状阻水带;浸渍法,将无纺布通过进入浸渍机,带上粘合剂,经烘干得产品。该几种制造方法中无纺布经热轧后,表面经融熔成纸状的光滑面,达到阻水效果主要是吸水膨胀材料,无纺布本身无法达到膨胀,这就带来整个阻水带厚度增加,克重加大,增加了电缆光缆的成本。
发明内容
本发明主要解决的技术问题是提供一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法,具有克重轻,网层厚度薄,网层纤维疏松,网层中带密集小孔,当无纺布浸渍或喷涂吸水膨胀材料后,快速将膨胀料融入无纺布中,经烘干成卷,加快阻水带的膨胀速率,增加阻水带膨胀高度,使电缆遇水及潮气进入时快速膨胀,阻止水分进入,达到安全效果,且大大降低电缆光缆的外包材料成本。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种电缆光缆膨胀阻水带用超薄型无纺布,包括:涤纶纤维层、通孔和亲水性吸水膨胀料,所述涤纶纤维层上下表面均设置有通孔,所述亲水性吸水膨胀料设置于涤纶纤维层内部及上下表面,所述电缆光缆膨胀阻水带用超薄型无纺布克重为15~50g/m2,厚度为0.07mm~0.10mm,抗张强度大于25N/mm,断裂伸长率大于14%。
在本发明一个较佳实施例中,所述电缆光缆膨胀阻水带用超薄型无纺布克重为20g/m2,厚度为0.08mm,抗张强度为26N/mm,断裂伸长率为15%。
为解决上述技术问题,本发明还提出了一种电缆光缆膨胀阻水带用超薄型无纺布的生产方法,包括以下步骤:
a、开松:将涤纶纤维先均匀送入储棉箱,堆放成堆,送入开松设备内松解、离解,达到开松均匀;
b、梳理:将已开松过的纤维以10-30米/min的速度在梳理机上梳理,该梳理机带多根杂乱辊,纤维横向排列几率增多,提高无纺布横向强力;
c、铺网:经梳理出单层毛网经铺网帘叠层成网再进入第二道梳理机;
d、再梳理:采双道夫梳理机,分上下毛网层出网,且也设置多根杂乱辊;
e、热轧:在热轧机前安装空气展开辊,消除空气,使毛层均匀进入热轧机,毛网经90至250℃热轧机进行热压成型;
f、刺孔:无纺布经针刺机针刺后得到小孔,所述针刺机每米布针量按2700枚布针形式,针孔为¢1.83mm,三棱光刺,第一刺到针尖距离为4.2mm,频率为每分钟900次,动程为50mm,出布速度为0-3米,所述针刺机的托、剥网板均采用手动蜗轮升降,并有刻度显示,所述针刺机的进棉辊采用导网圈装置,所述针刺机的出棉辊采用气缸升降;
g、成卷:经成卷机成卷,且两边切边;
h、浸料:无纺布通过浸料机使小孔和表面带亲水性吸水膨胀料,再通过烘干机烘干。
在本发明一个较佳实施例中,所述步骤f中导网圈装置表面设置滚花纹。
本发明的有益效果是:本发明指出的一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法,具有克重轻,网层厚度薄,网层纤维疏松,网层中带密集小孔,当无纺布浸渍或喷涂吸水膨胀材料后,快速将膨胀料融入无纺布中,经烘干成卷,加快阻水带的膨胀速率,增加阻水带膨胀高度,使电缆遇水及潮气进入时快速膨胀,阻止水分进入,达到安全效果,且大大降低电缆光缆的外包材料成本。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图,其中:
图1是本发明产品的截面放大示意图;
图中所述:1、涤纶纤维层,2、通孔,3、亲水性吸水膨胀料。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,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它实施例,都属于本发明保护的范围。
本发明一种电缆光缆膨胀阻水带用超薄型无纺布,包括:涤纶纤维层1、通孔2和亲水性吸水膨胀料3,所述涤纶纤维层1上下表面均设置有通孔2,所述亲水性吸水膨胀料3设置于涤纶纤维层1内部及上下表面,所述电缆光缆膨胀阻水带用超薄型无纺布克重为15~50g/m2,厚度为0.07mm~0.10mm,抗张强度大于25N/mm,断裂伸长率大于14%,所述电缆光缆膨胀阻水带用超薄型无纺布克重为20g/m2,厚度为0.08mm,抗张强度为26N/mm,断裂伸长率为15%。
一种电缆光缆膨胀阻水带用超薄型无纺布的生产方法,包括以下步骤:
a、开松:将涤纶纤维先均匀送入储棉箱,堆放成堆,送入开松设备内松解、离解,达到开松均匀 ;
b、梳理:将已开松过的纤维以 10-30 米 /min 的速度在梳理机上梳理,该梳理机带多根杂乱辊,纤维横向排列几率增多,提高无纺布横向强力;
c、铺网:经梳理出单层毛网经铺网帘叠层成网再进入第二道梳理机;
d、再梳理:采双道夫梳理机,分上下毛网层出网,且也设置多根杂乱辊;
e、热轧:在热轧机前安装空气展开辊,消除空气,使毛层均匀进入热轧机,毛网经90至250℃热轧机进行热压成型;
f、刺孔:无纺布经针刺机针刺后得到小孔,所述针刺机每米布针量按2700枚布针形式,针孔为¢1.83mm,三棱光刺,第一刺到针尖距离为4.2mm,频率为每分钟900次,动程为50mm,出布速度为0-3米,所述针刺机的托、剥网板均采用手动蜗轮升降,并有刻度显示,所述针刺机的进棉辊采用导网圈装置,所述针刺机的出棉辊采用气缸升降;
g、成卷:经成卷机成卷,且两边切边;
h、浸料:无纺布通过浸料机使小孔和表面带亲水性吸水膨胀料,再通过烘干机烘干。
所述步骤f中导网圈装置表面设置滚花纹。
综上所述,本发明指出的一种电缆光缆膨胀阻水带用超薄型无纺布及其生产方法,具有克重轻,网层厚度薄,网层纤维疏松,网层中带密集小孔,当无纺布浸渍或喷涂吸水膨胀材料后,快速将膨胀料融入无纺布中,经烘干成卷,加快阻水带的膨胀速率,增加阻水带膨胀高度,使电缆遇水及潮气进入时快速膨胀,阻止水分进入,达到安全效果,且大大降低电缆光缆的外包材料成本。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (2)

1.一种电缆光缆膨胀阻水带用超薄型无纺布的生产方法,其特征在于,包括以下步骤:
a、开松:将涤纶纤维先均匀送入储棉箱,堆放成堆,送入开松设备内松解、离解,达到开松均匀;
b、梳理:将已开松过的纤维以10-30米/min的速度在梳理机上梳理,该梳理机带多根杂乱辊,纤维横向排列几率增多,提高无纺布横向强力;
c、铺网:经梳理出单层毛网经铺网帘叠层成网再进入第二道梳理机;
d、再梳理:采用 双道夫梳理机,分上下毛网层出网,且也设置多根杂乱辊;
e、热轧:在热轧机前安装空气展开辊,消除空气,使毛层均匀进入热轧机,毛网经90至250℃热轧机进行热压成型;
f、刺孔:无纺布经针刺机针刺后得到小孔,所述针刺机每米布针量按2700枚布针形式,针孔为¢1.83mm,三棱光刺,第一刺到针尖距离为4.2mm,频率为每分钟900次,动程为50mm,出布速度为0-3米,所述针刺机的托、剥网板均采用手动蜗轮升降,并有刻度显示,所述针刺机的进棉辊采用导网圈装置,所述针刺机的出棉辊采用气缸升降;
g、成卷:经成卷机成卷,且两边切边;
h、浸料:无纺布通过浸料机使小孔和表面带亲水性吸水膨胀料,再通过烘干机烘干。
2.根据权利要求1所述的电缆光缆膨胀阻水带用超薄型无纺布生产方法,其特征在于,所述步骤f中导网圈装置表面设置滚花纹。
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