CN108796774B - 一种伪装屏蔽布及其生产方法 - Google Patents

一种伪装屏蔽布及其生产方法 Download PDF

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CN108796774B
CN108796774B CN201810637739.1A CN201810637739A CN108796774B CN 108796774 B CN108796774 B CN 108796774B CN 201810637739 A CN201810637739 A CN 201810637739A CN 108796774 B CN108796774 B CN 108796774B
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stainless steel
warp
camouflage
fiber
shielding cloth
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CN108796774A (zh
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房戈
张艳梅
赵阿卿
李君芳
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Baoding Sanyuan Textile Science Co ltd
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Abstract

本发明公开了一种伪装屏蔽布及其生产方法，包括镀银针织面料，所述镀银针织面料两侧均设有不锈钢纤维面料，位于外侧的所述不锈钢纤维面料上设有热塑性聚氨酯浆料屏蔽层，所述热塑性聚氨酯浆料屏蔽层内设有纳米电磁屏蔽粒子，不锈钢纤维面料的制备主要包括金属短纤维条和棉条的制备、混并工序、粗纱工序、细纱工序、整经工序、穿综和织造工序，其中短纤维条和棉条的结合采用“混三并”工艺，纺织工序以100D长丝为筋金属混纺纱为骨，“筋骨并举”配合“Ⅰ‑Ⅱ经停法”工艺完成。本发明制得的伪装屏蔽布的雷达反射率达85％以上，撕破强力达到200N以上，布的干燥重量在200g/m2以下，燃烧12s后，火焰离开后的续燃时间为0，具有离火自熄性。

Description

一种伪装屏蔽布及其生产方法
技术领域
本发明涉及纺织技术领域，尤其涉及一种伪装屏蔽布及其生产方法。
背景技术
随着新世纪高科技的发展，电子、电器在给人们带来方便的同时，也使电磁辐射成为了人类新的致病源，它是心血管、糖尿病、癌突变的主要诱因，它对人体生殖系统、神经系统和免疫系统造成直接危害，它使男性性功能下降，女性内分泌紊乱，月经失调，妇女不育，孕妇流产，胎儿畸形。影响儿童脑组织、骨骼发育，导致视力下降，严重者导致视网膜脱落。消除电磁污染的途径有多种，其中开发防电磁辐射衣物是很有效的一种方法，因衣物与我们形影不离，保护着我们，美化着我们。我国过去防电磁辐射织物主要用于军工、国防和一些特殊工业领域，因其过于笨重而很少有人穿着，同时，本身不具备阻燃性、遇火自熄性。
发明内容
基于背景技术存在的技术问题，本发明提出了一种伪装屏蔽布及其生产方法，不仅屏蔽效果好，还具有离火自熄性。
本发明提出的一种伪装屏蔽布，包括镀银针织面料，所述镀银针织面料两侧均设有不锈钢纤维面料，所述镀银针织面料与不锈钢纤维面料之间通过针线缝合在一起，位于外侧的所述不锈钢纤维面料上设有热塑性聚氨酯浆料屏蔽层，所述热塑性聚氨酯浆料屏蔽层内设有纳米电磁屏蔽粒子，所述热塑性聚氨酯浆料屏蔽层通过聚酯胶粘接在外侧的不锈钢纤维面料上。
本发明提出的一种伪装屏蔽布的生产方法，所述不锈钢纤维面料的制备方法步骤如下：
S1：将不锈钢丝束采用单独传动加胶制压辊握持法牵切成金属短纤维条；
S2：将对位芳纶纤维经开松和抗静电剂处理后，经梳棉工艺制成2.8g/m的棉条；
S3：将S1所得的金属短纤维条与S2所得的棉条经过混三并工艺，混并条根数为：金属短纤维条1条，棉条9条，罗拉隔距25cm*35cm，牵伸倍数分别为7.2倍、8.5倍、6.5倍，在2-3罗拉之间的须条集束装置直径为2cm；
S4：粗纱工序：在毛纺粗纱机上将混并好的纤维条进一步牵伸加捻；
S5：细纱工序；
S6：整经工序：采用条式横动位移法，整经张力采用条段控制法，以保证经纱张力均匀、经轴平整。
S7：穿综：采用13572468穿综法；
S8：织造工序。
优选地，所述S1中金属短纤维条的长度为50-110mm，米克重1.5-4g。
优选地，所述S2中对位芳纶纤维的长度为51-80mm，直径1.5dtex。
优选地，所述S2中的梳棉工艺的主要参数为：锡林330r/min、刺辊800r/min、道夫18r/min,锡林和盖板的间距为0.25、0.23、0.2、0.2、0.23mm。
优选地，所述S4中的主要工艺参数为牵伸倍数4.21，牵伸后的纤维条的米克重0.5735g/m、捻度39捻/m，罗拉中心距50*60mm。
优选地，所述S5中主要工艺参数为牵伸倍数29.28、百米重量1.9587g/100m、捻度823捻/m、锭速35Hz。
优选地，所述S6中经纱的根数为20-200根，横动尺寸1-2mm。
优选地，所述S8使用的织造机的前部梭口与后部梭口按2:3.5的比例调整，经纱开口高度8-9cm、停经架高度5-7cm、后梁高度6cm。
优选地，所述停经架上下两侧各设有若干根停经条，所述停经条与经停装置的导通电路电连接。
与现有技术相比，本发明的有益效果是：本申请采用不锈钢束拉伸成短纤维条，然后与棉条进行混并，屏蔽布中的金属短纤维条形成的致密网络对电磁波产生波反射、波吸收及震荡，所得的伪装屏蔽布雷达反射率达到85％以上，撕破强力达到200N以上，布的干燥重量在200g/m2以下，削弱了对人体的危害，还可以起到伪装的效果；本申请使用的对位芳纶纤维具有良好的热稳定性和突出的阻燃性能，同时屏蔽布中的不锈钢纤维也具有一定的阻燃性，制得的伪装屏蔽布在火焰离开后续燃时间为0，具有离火自熄性；梳棉工艺中的小漏底尺寸为16吋，减少落物、保证了棉网清晰；整经工序采用条式横动位移法，整经张力采用条段控制法，保证了经纱张力均匀，经轴平整；前部梭口与后部梭口按2:3.5的比例调整，减少了经纱的弹性变形，停经架上设有上下停经条，只有当停经片与上下停经条均接触时才会使导通电路连通，发出停车信号，有效的避免了无故停车现象，提高了工作效率。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：
图1为本发明提出的一种伪装屏蔽布的结构示意图；
图2为本发明提出的一种伪装屏蔽布的不锈钢纤维面料的排线图。
图中：1-热塑性聚氨酯浆料屏蔽层、2-纳米电磁屏蔽粒子、3-不锈钢纤维面料、4-镀银针织面料、5-经纱、6-混纺纱、7-纬纱。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
参考图1，本发明提出的一种伪装屏蔽布，包括镀银针织面料4，镀银针织面料4选择市场上销售的面料(参考青岛东维纺织有限公司生产的镀银针织面料)，所述镀银针织面料4两侧均设有不锈钢纤维面料3，所述镀银针织面料4与不锈钢纤维面料3之间通过针线缝合在一起，位于外侧的所述不锈钢纤维面料3上设有热塑性聚氨酯浆料屏蔽层1，所述热塑性聚氨酯浆料屏蔽层1内设有纳米电磁屏蔽粒子2，所述热塑性聚氨酯浆料屏蔽层1通过聚酯胶粘接在外侧的不锈钢纤维面料3上。
一种伪装屏蔽布的生产方法，所述不锈钢纤维面料的制备方法步骤如下：
S1：将不锈钢丝束采用单独传动加胶制压辊握持法牵切成主体长度50-110mm、米克重1.5-4g的金属短纤维条；
S2：将纤维长度51-80mm、直径1.5dtex的对位芳纶纤维经开松和抗静电剂处理后，经梳棉工艺制成2.8g/m的棉条，为了减少落物、保证棉网清晰，去除了除尘刀，同时将小漏底尺寸改为16吋，梳棉工艺的主要参数为锡林330r/min、刺辊800r/min、道夫18r/min,锡林和盖板的间距为0.25、0.23、0.2、0.2、0.23mm；
S3：将S1所得的金属短纤维条与S2所得的棉条经过混三并工艺(也就是将短纤维条和棉条进行三次并混处理，使得纤维混合更加均匀)，混并条根数为：金属短纤维条1条，棉条9条，罗拉隔距25cm*35cm，牵伸倍数分别为7.2倍、8.5倍、6.5倍，在2-3罗拉之间的须条集束装置直径为2cm，混并后纤维条重量2.414g/m；
S4：粗纱工序：在毛纺粗纱机上将混并好的纤维条进一步牵伸加捻，粗纱主要工艺参数为：牵伸倍数4.21，牵伸后的纤维条的米克重0.5735g/m、捻度39捻/m，罗拉中心距50*60mm；
S5：细纱工序，以提高成纱条干和强力为重点，主要工艺参数为：牵伸倍数29.28、百米重量1.9587g/100m、捻度823捻/m、锭速35Hz；
S6：整经工序：采用条式横动位移法，整经张力采用条段控制法，以保证经纱张力均匀、经轴平整，每一条的经纱根数根据总经根数和条数不同定为20根-200根不等，横动尺寸在1mm-2mm之间，整经时经纱张力控制通过张力盘控制，前段比中间重1g，中间比后段重1g，中间层比上下层重1g。
S7：穿综：由于织物结构是双根经纱并列与纬纱交织，为避免织造过程中经纱粘连，采用13572468穿综法；
S8：织造工序：产品的规格为(30s+40s/100D)×(30s+40s/100D)66×66幅宽150cm，织物组织为“#”型，30s和40s/100D排列规律23:1，具体参照图2，其中经纱5和纬纱7为对位芳纶和不锈钢纤维混纺纱(30S)，混纺纱6为对位芳纶和不锈钢纤维混纺纱并与100D对位芳纶长丝合并的纺纱(40s/100D)，有效的增强了面料的撕拉强力，同时因为40s/100D在面料上以网格形式突出于布面，还可以从不同角度反射电磁波，起到伪装的效果。
织造时，为减少经纱弹性变形，前部梭口(织口到棕眼之间的距离)与后部梭口(综丝到停经架的距离)按2：3.5的比例调整；经纱开口高度8-9cm，停经架高度(织机墙板距停经架顶端的距离)为5-7cm，后梁高度为6cm，距离停经架前后位置为30-50cm；现有的经停装置每个停经片和一根停经条接触，即使不断经，只要有金属纤维落在停经条上也会使线路导通，发出停车信号，而本申请的停经架在经停片的上下两端分别设置一个经停条，只有当停经片与这两个停经条同时接触时线路才会导通，然后发出停车信号，该方法即为“Ⅰ-Ⅱ经停法”，本申请使用的经停装置能够有效的避免无故停车的现象，提高了生产效率，其中经纱上机张力为2-3kg。
屏蔽布的工作原理：由于不锈钢纤维面料和镀银针织面料的特性阻抗不同，电磁波在屏蔽体界面会发生反射损失，波阻抗的差别越大，反射衰减越多，同时因电磁感应在屏蔽体表面产生感生涡流，感应涡流可产生一个反电磁抵消原干扰磁场，涡流在介质中流动产生热耗损，使电磁波减弱，涡流效应随介质电导率的增大而增强；本申请在镀银针织面料的两侧设有不锈钢纤维面料，镀银针织面料由于不同于机织面料的组织结构，在中间层与里外层面料的不同搭配可以更好的达到阻抗间不同匹配，使电磁波在面料层之间传播多次反射衰减掉更多的电磁波，所以将镀银针织面料设置在中间层，镀银针织面料的两侧设有不锈钢纤维面料，不锈钢纤维面料由于其厚度较大，吸收损耗跟厚度正相关，透过不锈钢纤维面料的电磁波又可以被很好的吸收和反射。
以上所述，仅为本发明较佳的具体实施方式，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，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (9)

1.一种伪装屏蔽布的生产方法，其特征在于，所述伪装屏蔽布包括镀银针织面料，所述镀银针织面料两侧均设有不锈钢纤维面料，所述镀银针织面料与不锈钢纤维面料之间通过针线缝合在一起，位于外侧的所述不锈钢纤维面料上设有热塑性聚氨酯浆料屏蔽层，所述热塑性聚氨酯浆料屏蔽层内设有纳米电磁屏蔽粒子，所述热塑性聚氨酯浆料屏蔽层通过聚酯胶粘接在外侧的不锈钢纤维面料上；
所述不锈钢纤维面料的制备方法步骤如下：
S1：将不锈钢丝束采用单独传动加胶制压辊握持法牵切成金属短纤维条；
S2：将对位芳纶纤维经开松和抗静电剂处理后，经梳棉工艺制成2.8g/m的棉条；
S3：将S1所得的短纤维条与S2所得的棉条经过混三并工艺，混并条根数为：金属短纤维条1条，棉条9条，罗拉隔距25cm*35cm，牵伸倍数分别为7.2倍、8.5倍、6.5倍，在2-3罗拉之间的须条集束装置直径为2cm；
S4：粗纱工序：在毛纺粗纱机上将混并好的纤维条进一步牵伸加捻；
S5：细纱工序；
S6：整经工序：采用条式横动位移法，整经张力采用条段控制法，以保证经纱张力均匀、经轴平整；
S7：穿综：采用13572468穿综法；
S8：织造工序：以100D长丝为筋金属混纺纱为骨，“筋骨并举”配合“Ⅰ-Ⅱ经停法”工艺完成，织物组织为“#”型，经纱和纬纱为对位芳纶和不锈钢纤维混纺，混纺纱为对位芳纶和不锈钢纤维混纺并与100D对位芳纶长丝合并的纺纱，混纺纱在面料上以网格形式突出于布面，且经纱和纬纱与混纺纱的排列规律均为23:1。
2.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S1中金属短纤维条的长度为50-110mm，米克重1.5-4g。
3.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S2中对位芳纶纤维的长度为51-80mm，直径1.5dtex。
4.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S2中的梳棉工艺的主要参数为：锡林330r/min、刺辊800r/min、道夫18r/min,锡林和盖板的间距为0.25、0.23、0.2、0.2、0.23mm。
5.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S4中的主要工艺参数为牵伸倍数4.21，牵伸后的纤维条的米克重0.5735g/m、捻度39捻/m，罗拉中心距50*60mm。
6.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S5中主要工艺参数为牵伸倍数29.28、百米重量1.9587g/100m、捻度823捻/m、锭速35Hz。
7.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S6中经纱的根数为20-200根，横动尺寸1-2mm。
8.根据权利要求1所述的一种伪装屏蔽布的生产方法，其特征在于，所述S8使用的织造机的前部梭口与后部梭口按2:3.5的比例调整，经纱开口高度8-9cm、停经架高度5-7cm、后梁高度6cm。
9.根据权利要求8所述的一种伪装屏蔽布的生产方法，其特征在于，所述停经架上下两侧各设有若干根停经条，所述停经条与经停装置的导通电路电连接。
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