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CN113584714B - 一种木浆复合无纺布、生产工艺及其生产流水线 - Google Patents

一种木浆复合无纺布、生产工艺及其生产流水线 Download PDF

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CN113584714B
CN113584714B CN202110693392.4A CN202110693392A CN113584714B CN 113584714 B CN113584714 B CN 113584714B CN 202110693392 A CN202110693392 A CN 202110693392A CN 113584714 B CN113584714 B CN 113584714B
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fiber
layer
machine
cotton
wood pulp
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CN113584714A (zh
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谷祖伟
徐晓禹
胡小龙
崇庆成
高钦源
黄丽华
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Jianghua New Materials Technology (Jiangsu) Co.,Ltd.
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Nantong Tongzhou Jianghua Textile Co ltd
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • B32B5/06Layered 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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/425Cellulose series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/425Cellulose series
    • D04H1/4258Regenerated cellulose series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4374Non-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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/02Moisture-responsive characteristics
    • D10B2401/022Moisture-responsive characteristics hydrophylic
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/12Physical properties biodegradable

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

本发明公开一种木浆复合无纺布、生产工艺及其生产流水线,包括上纤维层、中间纤维层和下纤维层,上纤维层和下纤维层之和占总质量的55~95%,中间纤维层占总质量的5~45%;上纤维层和下纤维层均可为粘胶纤维、竹纤维、莱赛尔纤维、莫代尔纤维、棉纤维中的一种或者几种混合;中间纤维层为木浆纤维或者棉浆纤维,或者为生活用纸。经本发明加工形成的木浆复合无纺布手感细腻,布面平整,不掉屑,有优异的吸湿性能和保水性能,同时具备良好的横向强力;本发明由于采用了环保材料,因此产品具备良好的环保降解性,且由于采用了大量的木浆纤维或者棉浆纤维,从而降低了生产成本,且比传统无纺布更加吸水,同时对比传统木浆复合产品具有更好的强力。

Description

一种木浆复合无纺布、生产工艺及其生产流水线
技术领域
本发明涉及无纺布生产技术领域,具体涉及一种木浆复合无纺布、生产工艺及其生产流水线。
背景技术
无纺布又称非织造布,是由定向或随机的纤维构成,是新一代环保材料,具有防潮、透气、柔韧、质轻、价格低廉等特点,因具有布的外观和某些特性而称其为布。无纺布是一种不需要纺纱织布而形成的织物,只是将纺织短纤维或者长丝进行定向或随机排列,形成纤维网结构,然后采用机械、热粘或化学等方法加固而成。非织造布突破了传统的纺织原理,并具有工艺流程短、生产效率快,产量高,成本低,用途广等特点。
虽然无纺布具有诸多优点,但其仍具有诸多问题:
1、目前为了降低成本,很多无纺布采用了化学纤维加工,但存在化学纤维不可降解,不环保等缺陷;
2、一些无纺布由于采用了全天然纤维,导致生产成本较高;
无纺布一般吸水性保水性较差,使得其很难用作吸水材料使用,目前也有在PP材料中添加木浆纤维等吸水材料制成混合无纺布,这种无纺布虽然更加轻薄吸水,但其会产生大量粉屑,木浆纤维与PP纤维结合性差,吸水后强度差易断裂。
发明内容
本发明的目的在于提供一种木浆复合无纺布、生产工艺及其生产流水线。
为实现上述目的,本发明采用的技术方案是:一种木浆复合无纺布,其创新点在于:包括上纤维层、中间纤维层和下纤维层,所述上纤维层和下纤维层之和占总质量的55~95%,所述中间纤维层占总质量的5~45%;所述上纤维层和下纤维层均可为粘胶纤维、竹纤维、莱赛尔纤维、莫代尔纤维、棉纤维中的一种或者几种混合;所述中间纤维层为木浆纤维或者棉浆纤维,或者为生活用纸。
进一步的,当中间中间纤维层为生活用纸时,该生活用纸占总质量的15~40%
一种木浆复合无纺布的生产工艺,其创新点在于,包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照设定的比例投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量15~80g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量8~20g/㎡;
S5、
5.1当中间纤维层为木浆纤维或者棉浆纤维时,在下层纤网和上层纤网重叠前,在下层梳理机前端,设置气流成网机,将所需木浆或者棉浆经过中间开松机,再经过气流成网机,均匀的铺设在下层纤网上方;气流成网机流量300L/min,均匀输送木浆或者棉浆,定量5~50g/㎡;
5.2当中间纤维层为生活用纸时,在下层纤网和上层纤网重叠前,在下层梳理机前端,设置退卷装置,将所需生活用纸通过定速退卷方式与下层纤网重合;退卷装置采用主动放卷,放卷速度与下层纤网输送帘一致,放卷速度为10~150m/min,且采用单辊表面退卷,退卷辊采用橡胶表面,其直径为30-60cm;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为30~50kg/35~55kg;第二道正刺为两个水刺头,压力为60~80kg/75~95kg;第三道反刺为三个水刺头,压力为80~100kg/80~100kg/90~120kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
一种木浆复合无纺布生产流水线,其创新点在于:依次包括开包机、混合大仓、上纤维层流水线、中间纤维层流水线、下纤维层流水线、水刺机、烘箱和收卷机;所述上纤维层流水线和下纤维层流水线的输入端共同连接混合大仓;所述上纤维层流水线、中间纤维层流水线和下纤维层流水线的输出端共同连接水刺机;所述上纤维层流水线包括依次连接的上层纤网精开松机、上气压棉箱和上层梳理机;所述下纤维层流水线包括依次连接的下层纤网精开松机、下气压棉箱、下层梳理机和铺网机;所述中间纤维层流水线包括依次连接的中间开松机和气流成网机,或为单独的退卷装置。
进一步的,所述气流成网机包括开松仓,所述开松仓内设置开松辊,所述开松仓上方设置进料口和出料口,所述出料口上设置输料管道,所述输料管道内设置负压风机,所述输料管道的一端设置集料仓,所述集料仓的下方排列设置多个分配头,且每个分配头上均设置一个电磁阀进行控制,且每个电磁阀均单独控制。
进一步的,所述退卷装置包括机架,所述机架上设置转轴,所述转轴上设置转杆,所述转杆的上下两端分别设置退卷辊,所述退卷辊采用电机驱动,且退卷辊上设置生活用纸卷。
采用上述结构后,本发明有益效果为:
本发明工艺简单、生产效率较高,经工艺加工形成的木浆复合无纺布手感细腻,布面平整,不掉屑,有优异的吸湿性能和保水性能,同时具备良好的横向强力;本发明由于采用了环保材料,因此产品具备良好的环保降解性,且由于采用了大量的木浆纤维或者棉浆纤维,从而降低了生产成本,且比传统无纺布更加吸水,同时对比传统木浆复合产品具有更好的强力。
附图说明
图1为本发明的工艺流程图之一;
图2为本发明的工艺流程图之二;
图3为本发明的生产流水线结构示意图之一;
图4为本发明的生产流水线结构示意图之二;
图5为本发明中气流成网机的结构示意图;
图6为本发明中退卷装置的结构示意图。
附图标记说明:
1开包机、2混合大仓、3上纤维层流水线、31上层纤网精开松机、32上气压棉箱、33上层梳理机、4中间纤维层流水线、41中间开松机、42气流成网机、421开松仓、422开松辊、423进料口、424输料管道、425负压风机、426集料仓、427分配头、428电磁阀、43退卷装置、431机架、432转轴、433转杆、434退卷辊、435生活用纸卷、5下纤维层流水线、51下层纤网精开松机、52下气压棉箱、53下层梳理机、54铺网机、6水刺机、7烘箱、8收卷机。
具体实施方式
下面结合附图对本发明作进一步的说明。
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及具体实施方式,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施方式仅用以解释本发明,并不用于限定本发明。
实施例1
一种木浆复合无纺布,包括上纤维层、中间纤维层和下纤维层,上纤维层和下纤维层之和占总质量的55~95%,中间纤维层占总质量的5~45%;上纤维层和下纤维层均可为粘胶纤维、竹纤维、莱赛尔纤维、莫代尔纤维、棉纤维中的一种或者几种混合;中间纤维层为木浆纤维或者棉浆纤维,或者为生活用纸。粘胶纤维、竹纤维、莱赛尔纤维、莫代尔纤维、棉纤维均为环保可降解材质,因此本发明生产出的木浆复合无纺布为可降解的环保产品;生活用纸的概念对于本领域的技术人员来说是公知常识,在本申请不再进行阐述。
实施例2
参看图1,一种木浆复合无纺布的生产工艺,包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照总质量的55%(也就是55g/㎡)投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量30g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量25g/㎡;
S5、在下层纤网和上层纤网重叠前,在下层梳理机前端,设置气流成网机,将所需木浆纤维或者棉浆纤维按照总质量的45%(也就是45g/㎡)经过中间开松机,再经过气流成网机,均匀的铺设在下层纤网上方;气流成网机流量300L/min,均匀输送木浆或者棉浆,定量45g/㎡;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为40kg/45kg;第二道正刺为两个水刺头,压力为70kg/85kg;第三道反刺为三个水刺头,压力为90kg/90kg/100kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
实施例3
参看图1,一种木浆复合无纺布的生产工艺,包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照总质量的70%(也就是70g/㎡)投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量45g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量25g/㎡;
S5、在下层纤网和上层纤网重叠前,在下层梳理机前端,设置气流成网机,将所需木浆纤维或者棉浆纤维按照总质量的30%(也就是30g/㎡)经过中间开松机,再经过气流成网机,均匀的铺设在下层纤网上方;气流成网机流量300L/min,均匀输送木浆或者棉浆,定量30g/㎡;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为40kg/45kg;第二道正刺为两个水刺头,压力为70kg/85kg;第三道反刺为三个水刺头,压力为90kg/90kg/100kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
实施例2-3采用木浆或者棉浆所生产的木浆复合无纺布是按照100g/㎡的定量进行配比计算,符合实际情况。
实施例4
参看图2,一种木浆复合无纺布的生产工艺,包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照总质量的85%(也就是64g/㎡)投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量44g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量20g/㎡;
S5、在下层纤网和上层纤网重叠前,在下层梳理机前端,设置退卷装置,将所需生活用纸按照总质量的15%(也就是11g/㎡)通过定速退卷方式与下层纤网重合;退卷装置采用主动放卷,放卷速度与下层纤网输送帘一致,放卷速度为45m/min,且采用单辊表面退卷,退卷辊采用橡胶表面,其直径为35cm;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为40kg/45kg;第二道正刺为两个水刺头,压力为70kg/85kg;第三道反刺为三个水刺头,压力为90kg/90kg/100kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
实施例5
参看图2,一种木浆复合无纺布的生产工艺,包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照总质量的70%(也就是52.5g/㎡)投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量37.5g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量15g/㎡;
S5、在下层纤网和上层纤网重叠前,在下层梳理机前端,设置退卷装置,将所需生活用纸按照总质量的30%(也就是22.5g/㎡)通过定速退卷方式与下层纤网重合;退卷装置采用主动放卷,放卷速度与下层纤网输送帘一致,放卷速度为55m/min,且采用单辊表面退卷,退卷辊采用橡胶表面,其直径为40cm;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为40kg/45kg;第二道正刺为两个水刺头,压力为70kg/85kg;第三道反刺为三个水刺头,压力为90kg/90kg/100kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
实施例4-5采用生活用纸所生产的木浆复合无纺布是按照75g/㎡的定量进行配比计算,符合实际情况。
根据实施例2-5的生产工艺所制备的木浆复合无纺布的特性如表一
吸水性能 保水性能 横向强力
实施例2 浸没清水中1分钟,悬挂2分钟后,带液量可达自重的12倍以上 浸没吸液2min后,在温度25℃,湿度60%环境下,静置悬挂30min,带液量仍能够保持83%以上 对比同定量的木浆纸,其横向强力可以增强3倍,达到32N/5cm以上
实施例3 浸没清水中1分钟,悬挂2分钟后,带液量可达自重的11倍以上 浸没吸液2min后,在温度25℃,湿度60%环境下,静置悬挂30min,带液量仍能够保持85%以上 对比同定量的木浆纸,其横向强力可以增强3倍,达到31N/5cm以上
实施例4 浸没清水中1分钟,悬挂2分钟后,带液量可达自重的13倍以上 浸没吸液2min后,在温度25℃,湿度60%环境下,静置悬挂30min,带液量仍能够保持82%以上 对比同定量的木浆纸,其横向强力可以增强3倍,达到33N/5cm以上
实施例5 浸没清水中1分钟,悬挂2分钟后,带液量可达自重的10倍以上 浸没吸液2min后,在温度25℃,湿度60%环境下,静置悬挂30min,带液量仍能够保持80%以上 对比同定量的木浆纸,其横向强力可以增强3倍,达到30N/5cm以上
表一
从表一可以看出,本发明的生产工艺所制备的木浆复合无纺布具有优异的吸湿性能和保水性能,同时具备良好的横向强力。
实施例6
参看图3-4,一种木浆复合无纺布生产流水线,依次包括开包机1、混合大仓2、上纤维层流水线3、中间纤维层流水线4、下纤维层流水线5、水刺机6、烘箱7和收卷机8;上纤维层流水线3和下纤维层流水线5的输入端共同连接混合大仓2;上纤维层流水线3、中间纤维层流水线4和下纤维层流水线5的输出端共同连接水刺机6;上纤维层流水线3包括依次连接的上层纤网精开松机31、上气压棉箱32和上层梳理机33;下纤维层流水线5包括依次连接的下层纤网精开松机51、下气压棉箱52、下层梳理机53和铺网机54;中间纤维层流水线4包括依次连接的中间开松机41和气流成网机42,或为单独的退卷装置43。具体的,本申请中的开包机1、混合大仓2、上层纤网精开松机31、上气压棉箱32和上层梳理机33、中间开松机41、下层纤网精开松机51、下气压棉箱52、下层梳理机53、铺网机54、水刺机6、烘箱7和收卷机8对于本领域技术人员来说均为公知常识,在本申请中不再阐述其具体结构和工作原理。
参看图5,气流成网机42包括开松仓421,开松仓421内设置开松辊422,开松仓上方设置进料口423和出料口,出料口上设置输料管道424,输料管道424内设置负压风机425,输料管道424的一端设置集料仓426,集料仓426的下方排列设置多个分配头427,且每个分配头上均设置一个电磁阀428进行控制,且每个电磁阀428均单独控制。物料进入到开松仓421内,经开松辊422进行开松后,被负压风机425通过输料管道424送入集料仓426内,然后再高压的作用下从分配头427喷出,由于每个分配头上均设置一个电磁阀428,因此可以对分配头进行单独的控制,控制分配头427所喷出的量,同时根据后续的厚度检测仪,可以对分配头427进行控制,从而对量多量少进行控制,确保喷出的木浆或棉浆均匀的进行铺洒,从而确保布面平整。
参看图6,退卷装置43包括机架431,机架431上设置转轴432,转轴432上设置转杆433,转杆433的上下两端分别设置退卷辊434,退卷辊434采用电机驱动,且退卷辊上设置生活用纸卷435。其中一个生活用纸卷435通过退卷辊434和电机进行主动放卷,而另一个生活用纸卷435进行待位,当一个生活用纸卷435用完后,转杆433可通过转轴432进行旋转,将未使用的生活用纸卷435旋转至工位继续使用,从而缩短了更换时间。
以上所述,仅用以说明本发明的技术方案而非限制,本领域普通技术人员对本发明的技术方案所做的其它修改或者等同替换,只要不脱离本发明技术方案的精神和范围,均应涵盖在本发明的权利要求范围当中。

Claims (5)

1.一种木浆复合无纺布的生产工艺,其特征在于:包括上纤维层、中间纤维层和下纤维层,所述上纤维层和下纤维层之和占总质量的85~95%,所述中间纤维层占总质量的5~15%;所述上纤维层和下纤维层均可为粘胶纤维、竹纤维、莱赛尔纤维、莫代尔纤维、棉纤维中的一种或者几种混合;所述中间纤维层为木浆纤维或者棉浆纤维,或者为生活用纸;其生产工艺包括以下步骤:
S1、将上纤维层和下纤维层所需纤维按照设定的比例投入到开包机中,经开包机对纤维进行初步开松打散,后进入混合大仓进行充分混合;开包机的刺辊转速20~30r/min;
S2、大仓内混合均匀的多成分纤维或者单一成分纤维再分别送入上层纤网精开松机和下层纤网精开松机,由束状纤维束进一步开松,再进入气压棉箱形成均匀棉层,形成上层纤网棉层和下层纤网棉层,气压棉箱形成负压为-100~150pa;
S3、下层纤网棉层经过下层梳理机梳理形成单层纵向排列的纤网,再经过铺网机铺网,形成横纵向纤维分布的交叉棉网,其中梳理机锡林转速900~1200r/min,工作辊转速50~60r/min,剥取辊转速100~180r/min,铺网机铺网层数2~4层,形成交叉纤网的横纵向强力比达到0.8~1.2,下层纤网定量15~80g/㎡;
S4、上层纤网棉层经过上层梳理机形成纵向排列纤网,其中梳理机锡林转速800~1200r/min,工作辊转速50~80r/min,剥取辊转速100~140r/min,上层纤网定量8~20g/㎡;
S5、
5.1当中间纤维层为木浆纤维或者棉浆纤维时,在下层纤网和上层纤网重叠前,在下层梳理机前端,设置气流成网机,将所需木浆或者棉浆经过中间开松机,再经过气流成网机,均匀的铺设在下层纤网上方;气流成网机流量300L/min,均匀输送木浆或者棉浆,定量5~50g/㎡;
5.2当中间纤维层为生活用纸时,在下层纤网和上层纤网重叠前,在下层梳理机前端,设置退卷装置,将所需生活用纸通过定速退卷方式与下层纤网重合;退卷装置采用主动放卷,放卷速度与下层纤网输送帘一致,放卷速度为10~150m/min,且采用单辊表面退卷,退卷辊采用橡胶表面,其直径为30-60cm;
S6、经中间层复合后,下层纤网、中间纤维层和上层纤网在合网帘处进行合并,进入水刺机进行复合加固,且水刺过程采用“反-正-反”三道水刺方式进行加固,其中第一道反刺为两个水刺头,压力为30~50kg/35~55kg;第二道正刺为两个水刺头,压力为60~80kg/75~95kg;第三道反刺为三个水刺头,压力为80~100kg/80~100kg/90~120kg;经水刺加固后,下层纤网、中间纤维层和上层纤网进行穿插结合,形成横向和纵向拉伸以及复合力;
S7、经水刺后复合产品经过烘箱烘干后通过收卷机卷绕形成卷材,烘箱温度为100~150℃。
2.根据权利要求1所述的一种木浆复合无纺布的生产工艺,其特征在于:当中间纤维层为生活用纸时,该生活用纸占总质量的15~40%。
3.一种根据权利要求1或2所述的木浆复合无纺布生产流水线,其特征在于:依次包括开包机、混合大仓、上纤维层流水线、中间纤维层流水线、下纤维层流水线、水刺机、烘箱和收卷机;所述上纤维层流水线和下纤维层流水线的输入端共同连接混合大仓;所述上纤维层流水线、中间纤维层流水线和下纤维层流水线的输出端共同连接水刺机;所述上纤维层流水线包括依次连接的上层纤网精开松机、上气压棉箱和上层梳理机;所述下纤维层流水线包括依次连接的下层纤网精开松机、下气压棉箱、下层梳理机和铺网机;所述中间纤维层流水线包括依次连接的中间开松机和气流成网机,或为单独的退卷装置。
4.根据权利要求3所述的一种木浆复合无纺布生产流水线,其特征在于:所述气流成网机包括开松仓,所述开松仓内设置开松辊,所述开松仓上方设置进料口和出料口,所述出料口上设置输料管道,所述输料管道内设置负压风机,所述输料管道的一端设置集料仓,所述集料仓的下方排列设置多个分配头,且每个分配头上均设置一个电磁阀进行控制,且每个电磁阀均单独控制。
5.根据权利要求3所述的一种木浆复合无纺布生产流水线,其特征在于:所述退卷装置包括机架,所述机架上设置转轴,所述转轴上设置转杆,所述转杆的上下两端分别设置退卷辊,所述退卷辊采用电机驱动,且退卷辊上设置生活用纸卷。
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