CN111806033A - 一种造纸压榨毛毯 - Google Patents

一种造纸压榨毛毯 Download PDF

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CN111806033A
CN111806033A CN202010571490.6A CN202010571490A CN111806033A CN 111806033 A CN111806033 A CN 111806033A CN 202010571490 A CN202010571490 A CN 202010571490A CN 111806033 A CN111806033 A CN 111806033A
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layer
web
press felt
net
fiber
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谢宗国
戴永君
周兴富
王敏
吴强
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Vanov Paper Machine Felt Group Co ltd
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Vanov Paper Machine Felt Group Co ltd
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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    • D04H3/009—Condensation or reaction polymers
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres

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Abstract

本发明提供的一种造纸压榨毛毯，包括纤维网层、骨架层和弹性体层，纤维网层包括表层纤维网、中间层纤维网和底层纤维网，骨架层设置在中间层纤维网和底层纤维网之间，骨架层包括至少一层上层基网和至少一层下层基网，上层基网和下层基网均为经纬纱交织基网结构，弹性体层设置在上层基网与下层基网之间，弹性体层为一体成型的网格型结构，上述的纤维网层、骨架层和弹性体层通过针刺方式缠结连接，由于弹性体层具有良好的弹性，造纸压榨毛毯在出压榨区后，因弹性好的特性使造纸压榨毛毯快速膨胀，在毛毯表面形成负压，可保持纸张的干度，减少纸页的返湿，从而降低纸机干燥成本，起到节能、减耗的作用，也使生产效率得到提升。

Description

一种造纸压榨毛毯
技术领域
本发明涉及造纸毛毯技术领域，尤其是涉及一种造纸压榨毛毯。
背景技术
造纸毛毯属于工业用特殊纺织品，是现在造纸工业必不可少的贵重易耗器材，它的质量与生产的纸张质量、造纸机的生产效率和能源的消耗等方面均有着直接的关系，随着造纸工业生产技术的发展，要求造纸毛毯应具有强力大、平整性好、压缩回弹性好及尺寸稳定性好等特点。
目前，造纸毛毯是应用于造纸技术中湿纸压榨脱水或输送等步骤中的关键物品，其工业制备方法通常是先用合成纤维制成间隙宽而多的基网，然后再与非织造布复合，经针刺、化学处理、树脂整合和热定型而成，现有的造纸压榨毛毯在出压榨区后回弹速度欠佳，导致出压榨区的纸页含湿量大，进而导致后续的纸张干燥流程时间增长、能源消耗增加，最终导致生产效率降低，生产成本增加。
如何解决现有技术中造纸压榨毛毯在出压榨区后无法迅速回弹导致纸页含湿量大的问题成为本领域技术人员急需解决的技术问题。
发明内容
本发明的目的在于提供一种造纸压榨毛毯，以解决现有技术中造纸压榨毛毯在出压榨区后无法迅速回弹导致纸页含湿量大的问题。
本发明提供的诸多技术方案中的优选技术方案所能产生的诸多技术效果详见下文阐述。
为实现上述目的，本发明提供了以下技术方案：
本发明提供的一种造纸压榨毛毯，包括：
纤维网层，包括表层纤维网、中间层纤维网和底层纤维网；
骨架层，设置在所述中间层纤维网与所述底层纤维网之间，包括至少一层上层基网和至少一层下层基网，所述上层基网和所述下层基网均为经纬纱交织基网结构；
弹性体层，设置在所述上层基网与所述下层基网之间，为一体成型的网格型结构；
所述纤维网层、所述骨架层和所述弹性体层之间通过针刺缠结连接。
优选地，所述弹性体层的材质为TPE。
优选地，所述弹性体层的材质为TPU。
优选地，所述弹性体层的厚度为0.3毫米～1.0毫米。
优选地，所述上层基网和所述下层基网均包括位于同一水平面的经线和纬线，多根所述经线平行设置，多根所述纬线呈折线形交替绕过一根或多根所述经线，所述经线和所述纬线为单根纤维合股丝或多合股纤维合股丝。
优选地，所述经线和所述纬线均由六股所述合股丝合股而成，所述合股丝的截面为圆形，相邻两股所述合股丝相切且六股所述合股丝的圆心围成圆形。
优选地，所述表层纤维网由纤度为3dtex～44dtex的纤维制成。
优选地，所述中间层纤维网由纤度为11dtex～44dtex的纤维制成。
优选地，所述底层纤维网由纤度为11dtex～66dtex的纤维制成。
优选地，所述纤维的材质为尼龙6或尼龙66或涤纶或聚烃烯。
本发明提供的一种造纸压榨毛毯，其有益效果为：
本发明提供的一种造纸压榨毛毯，包括纤维网层、骨架层和弹性体层，纤维网层包括表层纤维网、中间层纤维网和底层纤维网，骨架层设置在中间层纤维网和底层纤维网之间，骨架层包括至少一层上层基网和至少一层下层基网，上层基网和下层基网均为经纬纱交织基网结构，弹性体层设置在上层基网与下层基网之间，弹性体层为一体成型的网格型结构，上述的表层纤维网、中间层纤维网、至少一层上层基网、弹性体层、至少一层下层基网、底层纤维网由上至下依次设置且通过针刺方式缠结连接，由于弹性体层具有良好的弹性，造纸压榨毛毯在出压榨区后，因弹性好的特性使造纸压榨毛毯快速膨胀，在毛毯表面形成负压，可保持纸张的干度，减少纸页的返湿，从而降低纸机干燥成本，起到节能、减耗的作用，也使生产效率得到提升。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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他的附图。
图1是本发明实施例示出的造纸压榨毛毯结构示意图；
图2是本发明实施例示出的弹性体层结构图；
图3是本发明实施例示出的上层基网或下层基网结构图。
图中：1、表层纤维网；2、中间层纤维网；3、底层纤维网；4、上层基网；5、下层基网；6、弹性体层；7、经线；8、纬线。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。显然，所描述的实施例仅仅是本发明一部分实施例，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的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。
以下，参照附图对实施例进行说明。此外，下面所示的实施例不对权利要求所记载的发明内容起任何限定作用。另外，下面实施例所表示的构成的全部内容不限于作为权利要求所记载的发明的解决方案所必需的。
参看图1～图3，本发明提供的一种造纸压榨毛毯，包括纤维网层、骨架层和弹性体层6，纤维网层包括表层纤维网1、中间层纤维网2和底层纤维网3，骨架层设置在中间层纤维网2和底层纤维网3之间，骨架层包括至少一层上层基网4和至少一层下层基网5，上层基网4和下层基网5均为经纬纱交织基网结构，弹性体层6设置在上层基网4与下层基网5之间，弹性体层6为一体成型的网格型结构，上述的表层纤维网1、中间层纤维网2、至少一层上层基网4、弹性体层6、至少一层下层基网5、底层纤维网3由上至下依次设置且通过针刺方式缠结连接，由于弹性体层6具有良好的弹性，造纸压榨毛毯在出压榨区后，因弹性好的特性使造纸压榨毛毯快速膨胀，在毛毯表面形成负压，可保持纸张的干度，减少纸页的返湿，从而降低纸机干燥成本，起到节能、减耗的作用，也使生产效率得到提升。
本发明提供的造纸压榨毛毯经针刺机反复将纤维缠结而成，以一层上层基网4和一层下层基网5为例，可以先将弹性体层6设置在上层基网4与下层基网5之间，经针刺机缠结连接，然后将中间层纤维网2经过针刺机缠结，然后将底层纤维网3经针刺机缠结，最后将表层纤维网1经针刺机缠结，依次定型、整理，得到本发明公开的造纸压榨毛毯。
作为可选的实施方式，弹性体层6的材质可以为TPE，即热塑性弹性体，是一种具有橡胶的高弹性，高强度，高回弹性的材料，所谓弹性体是指玻璃化温度低于室温度，断裂伸长率大于50％，外力撤除后复原性比较好的高分子材料。
弹性体层6优选的材质为TPU，即热塑性聚氨酯弹性体橡胶，硬度范围宽(60HA-85HD)、耐磨、耐油、透明、弹性好，是作为弹性体的绝佳材料，选用TPU等热塑性弹性体材料作为造纸压榨毛毯的骨架材料，可以提高造纸压榨毛毯的弹性回复性能，在造纸压榨毛毯出压榨区后，因弹性好的特性使毛毯快速膨胀，在毛毯表面形成负压，保持纸张的干度，减少纸页的返湿，从而降低纸机干燥成本，起到节能、减耗的作用，最终提高造纸压榨毛毯的使用周期，提高造纸机生产效率，降低造纸成本。
较佳的，上述弹性体层6的厚度可以为0.3毫米～1.0毫米，可以为0.3毫米、0.5毫米、0.8毫米或者1.0毫米等，弹性体层6为一体成型的网格型结构，网格可以为矩形网格，优选的实施方式为正方形网格，材质为TPU的弹性体层6的宽度一定，长度可以达到500—1000米，可以采用拼接方式与骨架层搭配使用，并与纤维网层经针刺植绒形成即有强力、又有弹性的造纸压榨毛毯。
可选的，上述的每层上层基网4或每层下层基网5均由经线7和纬线8交织而成，每层上层基网4或每层下层基网5的多根经线7和多根纬线8位于同一水平面，多根经线7平行设置，多根纬线8呈折线形交替绕过一根或多根经线，参看图3，图3所示的是上层基网4或下层基网5结构图，上层基网4和下层基网5结构相同，多根经线7平行设置，每根纬线8从一根经线7底部穿过后绕到经线7上方，从相邻的三根经线7上方穿过，然后再次绕到下一根经线7下方，如此依次穿过多个经线，多个纬线8交替排列，上述的经线7和纬线8可以为单根纤维合股丝或者多合股纤维合股丝，纤维的材质可以为尼龙6或者尼龙66或者涤纶或者聚烃烯等。
进一步的，上述的经线7和纬线8均可以由六股合股丝合股而成，合股丝的截面为圆形，六股合股丝的圆心可以围成圆形排列，相邻两股合股丝的截面相切；或者以其中一股合股丝为中心，其他五股合股丝均匀分布在其周围，其他五股合股丝均与中间一股合股丝连接且中间一股合股丝的截面均与周围五股合股丝的截面相切。
实施中，上述的表层纤维网1可以由纤度为3dtex～44dtex的纤维制成，例如可以为3dtex、20dtex或者44dtex；中间层纤维网2可以由纤度为11dtex～44dtex的纤维制成，例如可以为11dtex、20dtex或者44dtex,底层纤维网3可以由纤度为11dtex～66dtex的纤维制成，例如可以为11dtex、30dtex或者66dtex，上述纤维的材质均可以为尼龙6或者尼龙66或者涤纶或者聚烃烯等。
以上所述，仅为本发明的具体实施方式，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，可轻易想到变化或替换，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以所述权利要求的保护范围为准。

Claims (10)

1.一种造纸压榨毛毯，其特征在于，包括：
纤维网层，包括表层纤维网(1)、中间层纤维网(2)和底层纤维网(3)；
骨架层，设置在所述中间层纤维网(2)与所述底层纤维网(3)之间，包括至少一层上层基网(4)和至少一层下层基网(5)，所述上层基网(4)和所述下层基网(5)均为经纬纱交织基网结构；
弹性体层(6)，设置在所述上层基网(4)与所述下层基网(5)之间，为一体成型的网格型结构；
所述纤维网层、所述骨架层和所述弹性体层(6)之间通过针刺缠结连接。
2.根据权利要求1所述的造纸压榨毛毯，其特征在于，所述弹性体层(6)的材质为TPE。
3.根据权利要求2所述的造纸压榨毛毯，其特征在于，所述弹性体层(6)的材质为TPU。
4.根据权利要求1～3任一项所述的造纸压榨毛毯，其特征在于，所述弹性体层(6)的厚度为0.3毫米～1.0毫米。
5.根据权利要求1所述的造纸压榨毛毯，其特征在于，所述上层基网(4)和所述下层基网(5)均包括位于同一水平面的经线(7)和纬线(8)，多根所述经线(7)平行设置，多根所述纬线(8)呈折线形交替绕过一根或多根所述经线(7)，所述经线(7)和所述纬线(8)为单根纤维合股丝或多合股纤维合股丝。
6.根据权利要求5所述的造纸压榨毛毯，其特征在于，所述经线(7)和所述纬线(8)均由六股所述合股丝合股而成，所述合股丝的截面为圆形，相邻两股所述合股丝相切且六股所述合股丝的圆心围成圆形。
7.根据权利要求1所述的造纸压榨毛毯，其特征在于，所述表层纤维网(1)由纤度为3dtex～44dtex的纤维制成。
8.根据权利要求1所述的造纸压榨毛毯，其特征在于，所述中间层纤维网(2)由纤度为11dtex～44dtex的纤维制成。
9.根据权利要求1所述的造纸压榨毛毯，其特征在于，所述底层纤维网(3)由纤度为11dtex～66dtex的纤维制成。
10.根据权利要求5～9任一项所述的造纸压榨毛毯，其特征在于，所述纤维的材质为尼龙6或尼龙66或涤纶或聚烃烯。
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