CN202610651U - 造纸用高留着率三层成形网 - Google Patents

造纸用高留着率三层成形网 Download PDF

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CN202610651U
CN202610651U CN201220235649.8U CN201220235649U CN202610651U CN 202610651 U CN202610651 U CN 202610651U CN 201220235649 U CN201220235649 U CN 201220235649U CN 202610651 U CN202610651 U CN 202610651U
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韩孔斌
韩涛
扬金宝
孙帅
耿杰
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ANHUI XINYUAN TEXTILE CO LTD
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ANHUI XINYUAN TEXTILE CO LTD
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Abstract

本实用新型涉及一种造纸用高留着率三层成形网,涉及造纸成形用网技术领域。由面层网和底层网复合而成;面层网采用二综平纹织法,面层网经线线径为0.23mm,密度为20根/cm,面层网纬线为线径0.21mm的聚酯和线径0.21mm的尼龙;底层网采用五综斜纹织法,底层网经线线径为0.32mm,密度为20根/cm,底层网纬线线径为0.42mm-0.56mm;面层网和底层网采用面纬自身连接,用线径0.21mm尼龙作为连接线。本实用新型造纸用高留着率三层成形网,面层网采用细线径的二综平纹织法,表面交织点很多,造纸抄造时成形效果好,纤维留着率高,纸页剥离性好,充分满足抄纸时的成形要求。

Description

造纸用高留着率三层成形网
技术领域
本实用新型涉及一种造纸用高留着率三层成形网,涉及造纸成形用网技术领域。
背景技术
目前,常规抄造定量80克/平方米以上的包装纸的2B4216系列网,经常用作叠网纸机的衬网和底网,该系列网经向密度为46根/公分,经线线径0.23mm,面纬为八棕一粗(0.25mm聚酯)一细(0.17mm聚酯)纬线斜纹织法,底纬为等径(0.45mm聚酯)、(0.45mm尼龙)16棕破缎纹编织,纬向密度最高可达到42根/公分。特点是网型结构稳定、透气度与纤维留着率中等,成形脱水良好、寿命也较好,由于是二层半编织结构,经线穿插面层与底层,线径范围受到限制,如果线径选粗,则抗拉强度增大,但影响面层成型效果;如果线径选细,表面成型效果较好,但网纵向抗拉强度受到影响。
另外,另一种常规抄造定量80克/平方米以上的包装纸的2B3616系列网,经常用作叠网纸机的芯网,该系列网经向密度为40根/公分,经线线径0.28mm,面纬为八棕一粗(0.28mm聚酯)一细(0.20mm聚酯)纬线斜纹织法,底纬为等径(0.50mm聚酯)、(0.50mm尼龙)16棕破缎纹编织,纬向密度最高可达到36根/公分。特点是网型结构稳定、透气度大,脱水性能良好、寿命也较好,由于是二层半编织结构,经线穿插面层与底层,线径范围受到限制,如果线径选粗,则抗拉强度增大,但影响面层成型效果;如果线径选细,表面成型效果较好,但网纵向抗拉强度受到影响。
因些,从上述背景技术来看,二层半网在结构上是难于解决上述问题的。
实用新型内容
针对现有技术中存在的上述问题,本实用新型提供了一种在成形、脱水、细小纤维留着率、使用寿命等运行经济性显著提高的造纸用高留着率三层成形网。
本实用新型采用的技术方案如下:
造纸用高留着率三层成形网,其特征在于,
由面层网和底层网复合而成;
面层网采用二综平纹织法,面层网经线线径为0.23mm,密度为20根/cm,面层网纬线为线径0.21mm的聚酯和线径0.21mm的尼龙;
底层网采用五综斜纹织法,底层网经线线径为0.32mm,密度为20根/cm,底层网纬线线径为0.42mm-0.56mm;
面层网和底层网采用面纬自身连接,用线径0.21mm尼龙作为连接线。
较为完善的是,经向密度为41根/cm。
本实用新型造纸用高留着率三层成形网,与现有技术相比,其有益效果表现在:
1、面层网采用细线径的二综平纹织法,表面交织点很多,造纸抄造时成形效果好,纤维留着率高,纸页剥离性好,充分满足抄纸时的成形要求。
2、底层采用大线径的五综斜纹织法,网子MCD方向(机器方向)的抗拉强度大,底纬浮长线比率高,耐磨体积大,网子的寿命得到充分地提高。
3、三层成形网的横向挺度得到加强,在抄造使用时,网子抗变形能力强,能够抵抗纸机真空箱的真空抽吸,减少纸机用网边部磨损的程度,网的寿命得到明显提高。
4、三层成形网的厚度得到加强,网子自由空间量上升,透气和滤水能力强于二层半成形网,为保证与二层半网同样的透气度,三层网的纬向密度同比可以增加二根,这样面层网成形效果和底纬磨损体积同时得到提高,从而成纸效果和使用寿命同步提高。
5、面层网与底层网连接线采用高强度与高抗疲劳度的尼龙,同时尼龙线又作为面纬,实行自连接(self-support binding),连接强度得到保证,使得面层网与底层网结合稳固。
6、新型设计网型已转化为实际批量生产,经造纸厂使用验证,完全达到了预期的效果与经济性。
附图说明
为了便于本领域技术人员理解,下面结合附图对实用新型作进一步的说明。
图1是本实用新型造纸用高留着率三层成形网CD方向结构示意图。
具体实施方式
请参阅图1,造纸用高留着率三层成形网,由面层网和底层网复合而成,经向密度为41根/cm,纬向密度可以选择不同的线径和密度搭配,网应用于包装纸抄造的衬、芯、底网。
面层网采用二综平纹织法,面层网经线线径为0.23mm,密度为20根/cm,面层网纬线为线径0.21mm的聚酯和线径0.21mm的尼龙。
底层网采用五综斜纹织法,底层网经线线径为0.32mm,密度为20根/cm,底层网纬线线径为0.42mm-0.56mm。
面层网和底层网采用面纬自身连接,用线径0.21mm尼龙作为连接线,结构相当稳固。
本实用新型造纸用高留着率三层成形网与2B4216系列网技术参数比较,如下表所示:
  造纸用高留着率三层成形网   2B4216-45-420
  透气度(M3/M2H)   6800   6800
  抗拉强度(N/cm)   1710   1445
  底纬密度(根/cm)   15   14
  表面交织点数(个/cm2)   630   322
  纤维支撑指数(F.S.I)   83   92.4
以上内容仅仅是对本实用新型结构所作的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离实用新型的结构或者超越本权利要求书所定义的范围,均应属于本实用新型的保护范围。

Claims (2)

1.造纸用高留着率三层成形网,其特征在于,
由面层网和底层网复合而成;
面层网采用二综平纹织法,面层网经线线径为0.23mm,密度为20根/cm,面层网纬线为线径0.21mm的聚酯和线径0.21mm的尼龙;
底层网采用五综斜纹织法,底层网经线线径为0.32mm,密度为20根/cm,底层网纬线线径为0.42mm-0.56mm;
面层网和底层网采用面纬自身连接,用线径0.21mm尼龙作为连接线。
2.根据权利要求1所述的造纸用高留着率三层成形网,其特征在于,经向密度为41根/cm。
CN201220235649.8U 2012-05-22 2012-05-22 造纸用高留着率三层成形网 Expired - Fee Related CN202610651U (zh)

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