CN103392037A - 用于平织的循环织物带的稳固化的织缝 - Google Patents

用于平织的循环织物带的稳固化的织缝 Download PDF

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Publication number
CN103392037A
CN103392037A CN201280010400XA CN201280010400A CN103392037A CN 103392037 A CN103392037 A CN 103392037A CN 201280010400X A CN201280010400X A CN 201280010400XA CN 201280010400 A CN201280010400 A CN 201280010400A CN 103392037 A CN103392037 A CN 103392037A
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words
line
warp
machine direction
fabric
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罗伯特·埃伯哈特
米夏埃尔·斯特劳布
马蒂亚斯·豪斯尔
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Voith Patent GmbH
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Voith Patent GmbH
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Publication of CN103392037A publication Critical patent/CN103392037A/zh
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/0027Screen-cloths
    • D21F1/0054Seams thereof
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00Other details of machines for making continuous webs of paper
    • D21F7/08Felts
    • D21F7/12Drying
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412Infrared [IR] radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1435Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • B29C65/1429Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • B29C65/1483Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
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    • B29C65/1612Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616Near infrared radiation [NIR], e.g. by YAG lasers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1635Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1654Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1677Laser beams making use of an absorber or impact modifier
    • B29C65/1683Laser beams making use of an absorber or impact modifier coated on the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C66/01General aspects dealing with the joint area or with the area to be joined
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    • B29C66/23Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
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    • B29C66/43Joining a relatively small portion of the surface of said articles
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    • B29C66/4322Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
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    • B29C66/43Joining a relatively small portion of the surface of said articles
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
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    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
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    • B29L2031/737Articles provided with holes, e.g. grids, sieves

Abstract

本发明涉及一种带有交织的线的循环织物带(10)以及一种用于这样制造该循环织物带的方法,即,在织缝区域(6)内,至少两个包含在织缝(6)的整个宽度上延伸的交汇部位的条带形区域(61、62)被布置在条带形的织物区域之间,经线或者说机器方向的线(1)和纬线或者说机器横向的线(2)的借助透射焊接材料锁合地连接的交织处处在这些织物区域中。

Description

用于平织的循环织物带的稳固化的织缝
技术领域
本发明涉及一种用于使用在造纸机中的循环织物带,以及尤其涉及为了制造循环织物带而将织物带末端连接起来的织缝的形成。
背景技术
上位概念“纸”涵盖了不同种类的纸、卡纸和纸板。纸的制造通常伴随着在造纸机的成形部中用纤维悬浮液形成纤维幅而开始。悬浮液和由悬浮液通过脱水产生的纤维幅平放在循环带上,循环带通过辊转向地在成形部内部环绕。在造纸机的接下来的一些部分中通过对纤维幅的进一步脱水而进一步形成纸张,此时,纤维幅在这些部分中也被平放在构造为循环带的网毯(Bespannung)上方运输。
为了纤维悬浮液和纤维幅的快速脱水,在造纸机的各个部位中,例如成形部、压榨部或干燥部中使用的运输带具有若干通孔,水、水蒸气以及在通风干燥器中尤其也为湿润的空气形式的湿气可以穿过这些通道,从带的一侧到达带的另一侧。此外,在一些部位中,例如压榨部中,通孔也用于暂时储存湿气。
对于平织,通过构造在交织的纱线之间的空隙确保了透水性。这样的织物被称为平织物,其没有绒毛,因此具有二维结构。平织物既可以具有平滑的也可以具有结构化的表面。纱线指的是由一种或多种纤维构成的长、薄且柔性的构成物,也就是说是一种纤维或纤维复合物,其长度超过其横截面尺寸好多倍。在制造用于造纸机网毯的织物带时,通常使用聚合单丝,也就是说由唯一一种纤维形式的聚合物构成的纱线。在压榨毛毯基本织物中,取代单丝的是通常也使用由单丝或罕见地由短纤纱(Stapelfasergarn)共同捻制而成的捻线。织物带在此或本身形成了网毯,或如在压榨部中那样用作进一步修正后的运输带的支承基底,例如压榨毛毯。
为了制造循环织物带,已知各种技术,例如对用于可拆开地连接网毯端部的套缝的圆织或密织。在成形部中以及在通风干燥器中,通常更加优选由单丝制成的平织物,其借助所谓的织缝闭合成循环织物带。
用于在造纸机中使用的网毯的经平织的循环带的制造,通常伴随着对卷材形式的平织带的织造而开始,其中,经线或者说机器方向的线沿带的纵向,而纬线或者说机器横向的线横向于经线或者说机器方向的线在带的侧边之间延伸。鉴于改良了的机械负荷能力,如抗弯刚性,平织物带通常构造成两层或多层,其中,各织造层在它们的纱线的材料、粗细和导向上可能彼此间有所区别。在此,通过有规律地使一个织造层的纱线介入另一个织造层的编结,可以达到各织造层的一种稳定的面式的连接。
作为卷材存在的平织物带紧接着以一定的长度批量制造,以及由此得出的分段通过一条连接其端侧棱边的缝环形地闭合。缝在循环织物带的整个宽度上延伸并且在带的运行方向上在实施成织缝的情况下通常具有在5和50cm之间的长度。带的运行方向在此指的是在造纸机中按规定使用时带的运动方向。对循环织物带的分别承载纤维幅(或纤维悬浮液)的那部分来说,这个方向与被称为机器方向的纤维幅的运输方向一致。
为了使织缝不造成纤维幅被打上标记,织缝的排水特性以及表面结构必须尽可能与被称为全织物的剩余的循环织物带的排水特性以及表面结构一致。理想的是,在织缝中继续全织物的编织结构,为此需要横向于全织物的编织方向进行的编织过程,该编织过程或手动地进行,或在特意为此设置的织机或缝合机上,例如相应适配的提花织机上进行。
为了制造织缝,在批量制造的平织物带的两个端侧的端部上先是将纬线或者说机器横向的线从全织物脱出,以便露出经线或者说机器方向的线的端部。这样经释放的经线端部或者说机器方向的线的端部紧接着与新的纬线或者说机器横向的线交织成完整的织物带,其中,每一条经线或者说机器方向的线的两个端部都被置入同样的编织梭口中并且分别在特定的部位上从织物引出并且之后被剪除。因此在这种织造过程中,原来的经线承担起纬线的作用而纬线承担起经线的作用,其中,用于织缝的纬线结构通常由单独的织物条带通过脱出经线而获得。
当经线或者说机器方向的线的两个端部在同一个部位上或同一个织物细孔上从织物导出以及被剪除时,经线或者说机器方向的线的端部在这个交汇部位上或多或少地相互交汇。这种织缝的强度基于在经线或者说机器方向的线和纬线或者说机器横向的线的交织部位上的线弯头的机械抱合。通过循环织物带在造纸机中运转时的拉力负载,经线或者说机器方向的线被沿相反的方向拉并且因此可以相对纬线或者说机器横向的线改变其位置并且可能从线连接处钻出。在此尤其涉及逆着带的运转方向取向的经线端部或者说机器方向的线的端部。钻出来的经线端部或者说机器方向的线的端部从织物出来并且在机器中在运转期间优选被磨掉。由此在织缝中产生了开放的区域,这些区域减小了织缝的抗断强度并且可能导致纤维幅的不均匀地被干燥并被打上标记。
为了防止织物负荷集中到织缝的小部分上并由此提高织缝的抗断强度,经线或者说机器方向的线的交汇部位分布在一个区域上,通常可能是织缝的整个区域上。交汇部位的分布在此可以具有随机的或假随机的或追随一种样式或图样的布置。
但如前所述的织缝的断裂伸长仅可能是全织物的断裂伸长的三分之一。为了改善缝的强度,织缝的长度,也就是说缝沿循环织物带的运转方向的大小被加大。不过缝的强度的增加与缝的长度的增加不成比例,因而在很长的织缝中,强度的改善与其制造成本无任何经济上的关系。
缝强度的改善也可以借助双罗纹针织(Interlock)达到,在双罗纹针织时,经线或者说机器方向的线的端部这样在不同的部位上从织物导出,即,使得经线或者说机器方向的线的端部区域在特定的行程长度上并排处在织物内。但经线端部或者说机器方向的线的端部的这种重叠会导致在纱线之间形成的空隙局部变小,后果就是局部损害了织物的透水性和透气性以及因而导致了相比全织物的不同的排水特性和干燥特性。此外,通过扩大双罗纹针织对缝强度的改善也由于与双罗纹针织的扩大不成比例地增长的缝强度而受到限制。
此外,为了强化聚合物织物,已知借助透射激光焊接将经线或者说机器方向的线和纬线或者说机器横向的线材料锁合地(stoffschlüssig)连接起来。纱线的焊接通常用在约700至1200nm范围内的激光波长实施,这个激光波长不会或仅轻微地被织物的纱线吸收。因此,为了能够产生焊接纱线所需的热量,必须创造合适的吸光区。这一点可以通过可能选择性地用特殊的吸收剂或颜料对纱线进行涂层来实现,或借助使用已经包含合适的吸收材料,例如炭黑、碳纳米管或在上述光波范围内进行吸收的颜料的纱线材料实现。当然,这样实施的对在循环平织物带的织缝区域内的纱线交织处的透射激光焊接造成了织缝相对于带的全织物的较高的刚性。
发明内容
因此,从已说明的内容出发,值得期望的是,提供一种通过对纱线交织处进行透射激光焊接而稳固化的、用于循环平织物带的织缝以及一种用于制造这种织缝的方法,该织缝相比上面所述的织缝具有较小的刚性或具有与循环平织物带的全织物类似的柔性。
在这种带有交织的线的循环平织物带的一些实施方式中,经线或者说机器方向的线或者纬线或者说机器横向的线由用热塑性聚合物制造的纱线形成,该热塑性聚合物对近红外线(NIR)范围内的波长的光而言是透明的,并且纱线的至少一部分在经线或者说机器方向的线和纬线或者说机器横向的线的交织部位上借助布置在交织部位的纱线接触区域上的并且吸收来自近红外线范围的光的材料彼此材料锁合地连接。这样材料锁合地拼接的交织部位在此布置在三个或多于三个的无交汇部位的条带形织物区域中,这些织物区域在平织物带的整个宽度上延伸并且在它们之间总是邻接具有交汇部位的织物区域。概念“透明的”在本文中指的是,一种对来自特定波长范围的光而言透明的介质,其不吸收这种光或在这样小的范围内吸收这种光,例如最大10%,因而不会出现介质的软化。
带有相应设计的稳固化的织缝的循环织物带实现了,作用到经线或者说机器方向的线的交汇部位上的力借助材料锁合地连接的纱线交织处在交汇部位之前和之后转移到相邻的经线或者说机器方向的线上。这种力的转移通过使交汇部位分布在至少两个织物区域上而得到改善,因为由此确保了,每一个包含交汇部位的织物区域也被在这个区域内不具有交汇部位的经线或者说机器方向的线穿过。构造用于力的转移的材料锁合的连接的纱线交织处在多个区域上的分布缩短了通过材料接合而硬化的织物区域的最大宽度,并且因而造成了织缝区域的柔性的设计。
在本文中要指出的是,在这个说明书和权利要求中用于列举特征的概念“包括”、“具有”、“包含”、“含有”和“带有”以及它们的语法变形,通常被理解为是对特征,例如方法步骤、装置、区域、大小和类似物等的非最终列举,以及不排除其它或附加的特征的存在或其它或附加的特征的分类。
交汇部位例如指的是这样一种部位,不同的经线或者说机器方向的线的或一条且同一条经线或者说机器方向的线的两个沿着一条直线互相延伸的端部布置在该交汇部位上。
如果涉及不同的经线或者说机器方向的线的两个彼此相向的端部,那么在直线上相互延伸的经线或者说机器方向的线涉及这样的经线或者说机器方向的线,其在织物内以最多五根,优选以最多一根纬线重复或者说机器横向的线重复,特别优选以最多两根经线或者说机器方向的线彼此错开。然后结果是,缝起的织物的经线或者说机器方向的线与织物的机器方向呈一个角度延伸。
端部可以在交汇部位上相互交汇并且不和任何纬线或者说机器横向的线一同交织,或与一条或多条纬线共同交织。在第一种所述情况下,两个彼此相向的经线端部的编织路径彼此相遇。在第二种所述情况下,两个经线或者说机器方向的线的端部的编织路径相互重叠。在上述两种情况下,端部都会接触。
也可以考虑,两个彼此相向的端部从机器方向观察彼此相间隔地中止,因此在交汇部位上布置着一条,最多两条不与两个端部中的任何一个交织的纬线。在后一种情况下,两个彼此相向的端部的编织路径将一条或最多两条纬线或者说机器横向的线彼此间隔地中止。
交汇部位从机器方向观察可以从两个端部中的一个在该端部从织物引出之前与之连接的最后一条纬线或者说机器方向的线起延伸,直至两个端部中的另一个在该端部从织物引出之前与之连接的最后一条纬线或者说机器方向的线。
用于形成带有相应地稳固化的织缝的平织物带的方法的一些实施方式包括用于提供用热塑性材料制成的纱线构成的平织物带的步骤,其经线或者说机器方向的线和/或纬线或者说机器横向的线对来自近红外线范围的波长的光而言是透明的,并且在其端部上,经线或者说机器方向的线为了形成织缝而被露出,该方法还包括形成用于将平织物带的两个端部连接成一条循环织物带的织缝的步骤,如果经线或者说机器方向与纱线与纬线或者说机器横向的线都不吸收来自近红外线波长范围的光,则还包括用于将吸收近红外线波长范围内光的材料置入经线或者说机器方向与纱线与纬线或者说机器横向的线的交织处的纱线接触区域内的步骤,其中,吸收材料至少被置入布置在三个或多于三个的无交汇部位的条带形织物区域内的纱线交织处,这些织物区域在平织物带的整个宽度上延伸并且在它们之间总是邻接具有交汇部位的织物区域,而且该方法还包括用来自近红外线波长范围的光照射至少三个或多于三个的无交汇部位的条带形织物区域的步骤,以便使纱线在吸收区域熔化。
在一些实施方式中,近红外线范围优选包括700至1200nm的波长范围,因而为了纱线结的材料锁合的连接而可以使用传统的NIR透射激光焊接设备和方法,例如在使用带有发射波长在808至980nm范围内的二极管激光器以及使用发射波长范围为1064nm的Nd:YAG激光器或红外线辐射器的情况下。
为了确保作用到交汇部位上的力有效地转移,在一些实施方式中,带有经线或者说机器方向的线和纬线或者说机器横向的线的材料锁合的交织部位的织物区域中的至少一个被布置在一个将平织物带的端部连接成循环平织物带的织缝内。
优选在形成相对于织缝的长度更大量的包含交汇部位的织物区域时,包含一个或两个材料锁合地拼接的交织部位的织物区域至少部分伸入织缝外的全织物中。
在带有对来自近红外线范围的波长的光透明的经线或者说机器方向的线和纬线或者说机器横向的线的实施方式中,在各纱线交织部位上的材料锁合的连接借助于通过布置在经线或者说机器方向的线和纬线或者说机器横向的线之间的交织处上的吸收相应的光的材料吸收来自近红外线范围的波长的光来实现,由此可以达到纱线交织处的一种保护纱线的聚合物结构的选择性的熔化。
备选的实施方式具有吸收来自近红外线范围的波长的光的经线或者说机器方向的线以及对来自该范围的光透明的纬线或者说机器横向的线,其中,在两个纱线的交织部位上的材料锁合的连接借助于通过经线或者说机器方向的线吸收来自近红外线范围的波长的光来实现。因为在这个实施方案中仅纱线交织处材料锁合地连接,其中,吸光的经线或者说机器方向的线透过透明的纬线或者说机器横向的线而受到照射,所以在一些这样的实施方式中,仅纱线交织处的一部分材料锁合地连接。结果,织物的硬化要小于在所有交织处发生材料锁合连接时的硬化,因此人们在焊接区域内,也就是说在材料锁合地连接的纱线交织处的范围内,获得了织物的较高的柔性。
在此外还有利的一种实施方式中,纬线或者说机器横向的线至少在织缝区域内被构造成,使它们吸收来自近红外线范围的波长的光,其中,经线或者说机器方向的线对来自这个范围的光而言是透明的。纱线在交织部位上的材料锁合的连接在此借助于通过纬线或者说机器横向的线吸收来自近红外线范围的波长的光来实现。在这个实施方式中,对吸收焊接光线的纱线的使用局限于织缝或可能发生些许延展的焊接区域,因而可以减少较为昂贵的吸收性纱线的使用。因为在此仅每两个纱线交织处中的一个被材料锁合地固定,所以这个实施方式提供了较高的柔性。
为了在将吸收性的线和与之交织的透明的线结合起来时使所有纱线交织处材料锁合地连接起来,焊接光线从两侧入射到织物内。
在所述方法的一些实施方式中,将吸收来自近红外线波长范围的光的材料置入到经线或者说机器方向的线与纬线或者说机器横向的线的交织处的纱线接触区域内的过程有利地包括将溶于溶剂的吸收性材料施加到至少一个或若干其中设定了纱线交织处材料锁合连接的织物区域上的步骤,还包括用于蒸发溶剂的步骤。
在所述方法的另一些实施方式中,将吸收来自近红外线波长范围的光的材料置入到经线或者说机器方向的线与纬线或者说机器横向的线的交织处的纱线接触区域内的过程有利地包括在形成织缝之前在端部区域内用吸收光的材料对平织物带的经线或者说机器方向的线进行涂层的步骤。由此实现了经线或者说机器方向的线的一种局限于织缝区域的简单的涂层,经线或者说机器方向的线结合未被涂层过的纬线或者说机器横向的线实现了柔性的被焊接的织物区域的形成,或结合被涂层的纬线或者说机器横向的线实现了完全坚硬的焊接区域的形成。
在一种有利的实施方式中,为了选择性地在经线或者说机器方向的线和纬线或者说机器横向的线的交织处的纱线接触区域或者说纱线接触部位上熔化纱线,吸收性的材料,如果需要,在经线或者说机器方向的线和纬线或者说机器横向的线的交织处的纱线接触部位之外通过冲洗、擦拭或刷除而被移除。
为了达到织缝的更高的抗断强度,在一些针对织缝形成的优选的实施方式中,布置在两个带有材料锁合地连接的纱线交织处的无交汇部位的织物区域之间的交汇部位就经线或者说机器方向的线的方向而言被布置在多个彼此不同的部位上。
附图说明
本发明其它的特征由接下来对实施例的说明并结合权利要求和附图得出。各个特征在按本发明的一个实施方式中也可以用不同于在下文说明的例子中的数量和组合实现。在接下来对本发明的几个实施例的阐释中参考了一些附图,附图中:
图1在示意图中示出了一条准备用于织缝连接的平织物带;
图2在示意图中示出了一条用织缝连接闭合的循环平织物带;
图3a在示意图中示出了一种用于在循环平织物带的织缝区域内对纱线交织处进行透射焊接的设备;
图3b在示意图中示出了另一种用于在循环平织物带的织缝区域内对纱线交织处进行透射焊接的设备;
图4在示意图中示出了在使用吸收焊接光线的纬线或者说机器横向的纱线的情况下材料锁合的连接的形成;
图5在示意图中示出了在使用选择性地置于纱线交织处之间的、吸收焊接光线的材料的情况下材料锁合的连接的形成;
图6在示意图中示出了借助透射焊接稳固化的、刚性很小的织缝的基本原理;以及
图7示出了交汇部位的不同的构造。
附图中,履行基本上相同的功能的元件、部件或区域,用相同的附图标记标注。这些元件、部件或区域的不同的设计方案具有类似的附图标记。
具体实施方式
在图1的示意图中示出了一种以一定长度批量制造的平织物带10,带有准备用于形成织缝的在端侧的端部3和4。在图1中沿水平方向延伸的织物10的经线或者说机器方向的线1以特定的图案与沿竖直方向所示的纬线或者说机器横向的线2交织。为清楚起见,分别仅为一条经线或者说机器方向的线,或仅为一条纬线或者说机器横向的线配设附图标记。此外,为了更好地看清准备用于环形连接的平织物带的基本特征,在没有参考具体印花的情况下选择经线或者说机器方向的线以及纬线的间距和数量以及平织物带10的编结和尺寸。
为了制造循环平织物带,平织物带10的端部3和4必须相互连接。为了使连接部位相比循环平织物带的其余部分不具有不同的排水特性(该特性会导致对纤维幅面形成标记),端部3和4在形成织缝的情况下相互连接。作为对此的准备,如图1所示,将纬线或者说机器横向的线从两个端部3和4的区域中移除。端部3和4因此仅剩下经线或者说机器方向的线。因为没有线以及尤其是没有纬线或者说机器横向的线从处在两个端部3和4之间的区域5脱开,所以在这个被称为全织物的区域5中完全保持了原来的编结。
如前面已经述及的那样,为了形成织缝,平织物带10的两个在端侧的端部3和4在一个横向于平织物带10的原来的编织方向进行的编织过程中连接。在这个织缝过程中,在端部3和4上从编结中被放出的经线端部或者说机器方向的线的端部以织缝的大小被织入纬线结构或机器横向的线的结构中。尽管在这个织缝过程中,纬线或者说机器横向的线2起到经线或者说机器方向的线的作用,而经线或者说机器方向的线1起到纬线或者说机器横向的线的作用,但在本文中,为了避免混淆,仍保留与原来的平织物带10相关的名称。
织缝的长度,也就是说其沿循环平织物带11的运行方向的大小,要小于两个织物带端部3和4的总和,从而使每一条经线或者说机器方向的线的端部都在织缝内重叠并且因而相比全织物减小了织缝对水、水蒸气和空气的渗透性。为了避免或减轻这种效果,经线端部或者说机器方向的线的端部的重叠部分通过一个织物细孔或通过两个相邻的通常在织物的同一侧上的织物细孔从编结中导出,之后将伸出来的线段剪除。根据在剪除期间施加到伸出的经线端部或者说机器方向的线的端部的拉力的大小,经线端部或者说机器方向的线的端部紧接着在织物内部接触或彼此间具有很小的间距。在拉应力极小时,经线或者说机器方向的线的端部也可以朝着织物的表面弯曲并且如果它们通过同一织物细孔向外弯曲,则在弯曲的区域内接触。若经线或者说机器方向的线的端部导引通过不同的织物细孔,那么这也可能随着细孔位置的不同而导致双罗纹针织。经线或者说机器方向的线的端部所在的区域,被称为交汇部位。
织缝过程的结果就是一种带有织缝6的循环平织物带11,如在图2中极为简化地示出的那样。在此图中为了突出织缝6而没有示出全织物区域5内的编结。此外,在图2中还示出了在本文中使用的方向名称,即,在按规定使用在造纸机中时循环平织物带11的运行方向LR、带11的横向于该运行方向取向的横向QR以及机器方向MR,机器方向反映了纤维幅面在造纸机内在循环平织物带11上的运输方向。
由于经线或者说机器方向的线在交汇部位上的断开,可能没有力导引经过交汇部位。因此当作用到交汇部位上的拉力无法传递到织物的其它线上时,循环织物带11的每一次拉力负载都会导致分离部位的打开或加宽。在织缝中,这种到在经线或者说机器方向的线与和交汇部位相邻的纬线或者说机器横向的线的交织处的其它纱线上的力传递是可能的。然而,由于力传递受限于纱线在交织处上的静摩擦,交汇部位形成了织缝的薄弱部位。为了避免降低织缝6的机械负荷能力的这些薄弱部位集中,交汇部位通常均匀地分布在织缝上。
为了改善到相邻纱线的力传导,纱线交织处可以在织缝区域6内彼此材料锁合地连接。为了通过相邻的纱线交织处的材料锁合的连接使均匀分布在织缝内的交汇部位稳固化,纱线交织处的相应的连接必须在织缝的整个面积上延伸。在材料锁合地连接的纱线交织处上,线不再能相对彼此移动,织缝由此得到加固。通过这种加固,在循环织物带11在造纸机内运转期间向织缝6施加一个比向全织物5更高的弯折力,带11由此尤其在板状加固的织缝6到更为柔性的全织物5的过渡区域上被强烈地加上负载。
为了借助纱线交织处的材料锁合的连接来稳固化织缝6并且为了尽管如此柔性地构造织缝,交汇部位被布置在织缝的特定的分区内,并且纱线交织处的材料锁合的连接在织缝的与之不同的分区内或在相邻的全织物内进行。
织缝连接通过纱线交织处的材料锁合的连接的稳固化则借助前述的透射焊接方法进行。为此,如图3a和3b所示那样,循环平织物带11首先例如借助两个辊25和26被张紧,其中,为了张紧织缝6,两个辊中的至少一个如图所示以能移动的方式受支承。当然,设备还可以包含其它的辊,借助它们可以使带11多次地转向,以便保持设备的较短的结构形态。其它合适的设备具有一个张紧装置,在该张紧装置中,循环平织物带11的仅一个包括织缝6的分区例如借助夹钳被张紧。
为了对经线或者说机器方向的线和纬线或者说机器横向的线在交织部位上进行焊接,一道由在近红外线范围发射的激光20或从红外线辐射器发出的光线21被导引到经线或者说机器方向的线和纬线或者说机器横向的线的有待焊接的交织处上。例如发射波长在808至980nm范围内的二极管激光器以及发射波长范围为1064nm的Nd:YAG激光器适合作为激光器。优选使用有来自700至1200nm范围的发射的激光器或红外线辐射器,因为在这个波长范围内的光不会被织物的纱线吸收或不会以让纱线变热的程度被吸收。
在图3a所示的设备中,激光21从激光源20扇形地发射并且通过能让所使用的光线透过的辊22线形地汇聚到在辊22和织缝6之间的接触面上。扇形的光束可以既通过激光的快速偏转产生,又可以静态地借助合适的透镜产生。借助辊22线形汇聚的激光能被布置在照射区域内的吸光材料转化成热能,热能最终导致了纱线在吸收性材料的区域内的熔化。由辊22施加到织物上的压力有利于在熔化区上接触的纱线之间的材料接合。
在图3b中示出的设备中,从焊接头20’扇形地发射的焊接光线21(或是激光或是合适的红外线辐射器的光线)直接对准织缝。设备因此在照射路径上不具有能让焊接光线透过的辊。在这种设备中,通过线的导引造成的在纱线的交织处上在纱线之间的接触压力被有利地用于材料接合。接触压力可以通过循环平织物带11例如借助两个25和26的张紧而被增强。
在如图3a和3b所示的设备的情况下,激光头20的、(或其它适用的光源)以及辊22的或焊接头20’的横向于循环平织物带11的运行方向LR的可移动性都足以用来照射到织缝的可任意选择的分区,因为焊接光线21可以借助辊25和26的旋转沿织缝6的运行方向移动。然而,如果循环平织物带11不可改变位置地受到夹紧,那么激光头20和辊22或焊接头20’也可以以能沿织缝的运行方向移置的方式布置。
为了焊接织缝区域6内的纱线交织处,入射的光线必须于在交织处上接触的纱线之间被吸收。为此,或这样构造其中一条交织的线,即,使其吸收用于焊接的光线,或将一种合适的吸收剂引入到纱线之间的交织部位上。
吸收近红外线范围内的光的纱线可以例如通过将例如呈炭黑、石墨或碳纳米管形式的碳引入热塑性基材中来制造。用于施加到焊接部位上的吸收溶液例如由Clearweld公司提供。但也可以恰当地使用颜料,颜料在溶剂中溶解后被施加到纱线上。
在使用吸收焊接光线21的纱线时,为了能够焊接纱线交织处的一部分,这些纱线优选或用作织缝区域内的纬线或者说机器横向的线,或用作循环平织物带的经线或者说机器方向的线。第一种情况在图4中示出,图中示出了织缝6的一部分的沿带11的横向QR延伸的剖面。该图示出了两条相继排列的纬线或者说机器横向的线2,它们与在横截面中示出的经线或者说机器方向的线1交织。纬线或者说机器横向的线2吸收从上方入射到织物上的焊接光线21,经线或者说机器方向的线对这些光线而言是透明。焊接光线21因此并未达到任何就光线入射而言被纬线或者说机器横向的线遮盖的纱线交织处,因而这些纱线交织处没有被焊接光线熔化。在其它交织部位上,在这些交织部位上对入射的焊接光线21而言是透明的经线或者说机器方向的线处在吸收焊接光线21的纬线或者说机器横向的线的上方,焊接光线21到达了在纱线之间的接触区域并且可以在那里这样加热纬线或者说机器横向的线,使得在这个部位上引起了两条纱线的材料锁合的连接7。
为了如图5所示那样,使所有纱线交织处在焊接区域内能够材料锁合地相互连接,焊接区域或者从织物的两侧通过焊接光线受到照射,或者在焊接区域内仅使用对焊接光线21而言是透明的纱线。(在图中未示出的)吸收焊接光线21的材料被置入到在经线或者说机器方向的线和纬线或者说机器横向的线的交织部位上的纱线之间。通过相应的选择性的吸收剂涂敷,焊接光线21可以穿透所有纱线并且仅被布置在交织处之间的吸收材料吸收,吸收材料接着被加热并且导致了包围有吸收材料的纱线区域的熔化。接触的纱线区域的熔化最终导致了材料接合部7的制成。
可以以不同的方式实现选择性地将吸收材料置入纱线的交织区域中。在一种优选的实施方式中,使用吸收溶液,吸收溶液在溶剂成分蒸发时聚集,而不会将吸收剂残余遗留在不再被润湿的表面上。相应的吸收溶液由Clearweld公司在市场上出售。基于与纱线的润湿相关的毛细作用,吸收溶液在溶剂蒸发时撤回到纱线交织部位上并且吸收性的材料在那里在纱线之间积聚。
对于在溶剂成分蒸发时让吸收性的材料留在纱线表面的吸收溶液,例如墨水,优选选择性地涂敷吸收剂的另一种有利的实施方式,在该实施方式中,经线或者说机器方向的线在织物带10的端部区域3和4中在织缝过程开始之前就被涂敷一种吸收材料,例如通过将露出的经线或者说机器方向的线浸入相应的吸收溶液中并且紧接着将这些线干燥。用于形成织缝的纬线或者说机器横向的线可以,但不是必须用吸收材料涂敷。在为此备选的实施方式中,织缝在完工后例如在浸槽中或借助溶液的喷射用吸收溶液浸润。在此达到的涂层厚度应当薄到使织物细孔不会堵塞。涂层厚度优选最大60μm,尤其最大30μm以及特别是最大20μm。
在涂敷好吸收剂的织缝完工后,处在交织区域之外的吸收材料被移除。这可以通过机械的去除,如刷除或用帕子或类似物拭除进行,不过织物的被涂层的部分优选用溶解吸收材料的介质处理,例如四氢呋喃(THF)(75%)和水(25%)的混合物。为了让溶剂不能侵入到纱线的交织区域中,织物带11在经过处理的区域中处在拉应力下,因而在交织部位上的纱线之间的接触压力被提高。为了去除多余的吸收材料,可以用溶剂冲洗织物。但去除也可以通过用在溶剂中浸润的帕子的擦拭或借助刷子实现。
在选择性地涂敷吸收剂之后,纱线在织缝的、以及在可能全织物的选出的区域内在它们的交织部位上材料锁合地相互连接。如果作为对纱线交织处涂敷吸收剂的替代使用如上所述的吸收焊接光线21的纱线,那么在这种情况下,交织部位的焊接仅在织缝或全织物的选出的区域内进行。如果纱线交织处也在全织物的区域中被焊接,那么在这些区域中也确保了在各交织部位上对焊接光线21的吸收。
选出的区域不包含任何交汇部位并且这样布置在循环织物带11上,即,使带11的包含每一个交汇部位的区域分别布置在两个选出的、无交汇部位的区域之间。这种布置的基本原理在图6中示出。在织缝6的区域中示意性示出的循环织物带11具有两个包含交汇部位的区域61和62,这两个区域布置在带有已焊接好的纱线交织处的、无交汇部位的区域71、72和73(在图6中作为打点的区域示出)之间。为清楚起见,图中仅示出了经线或者说机器方向的线,而在织物中显然存在的纬线或者说机器横向的线则未示出。示出的经线或者说机器方向的线的数量、粗细和间距只负责表示基本原理并且并不遵循真实的织物。此外,在分离部位上,经线或者说机器方向的线的间距为了更佳的可识别性而被夸大示出。
经线或者说机器方向的线1的交汇部位优选始终处在这样一个区域中,该区域不同于和这条经线或者说机器方向的线相邻的经线或者说机器方向的线的交汇部位所在的一个或若干区域。由此确保,在经线或者说机器方向的线的交汇部位的区域中作用到经线或者说机器方向的线上的拉力在包围交汇部位的焊接区域上被传递给相邻的经线或者说机器方向的线并且被吸收。在使用如图6所示的两个包含交汇部位的区域61和62时,经线或者说机器方向的线的交汇部位因此交替地处在一个或另一个包含交汇部位的区域中,从而在每一个包含交汇部位的区域61和62中,作用到带11上的拉力分别被所有经线或者说机器方向的线的一半所吸收。
为了使包含交汇部位的区域能够吸收较大的拉力,必须有多于两个,例如三个、四个或更多的这样的区域被布置到织缝上,其中,相邻的经线或者说机器方向的线的交汇部位在此又被布置在不同的包含交汇部位的区域中,更确切地说优选这样,即,数量对应于包含交汇部位的区域的数量的相邻的经线或者说机器方向的线,都将其交汇部位分布到所有这些区域上。在三个相应布置的包含交汇部位的区域中,在每一个这种区域上的机械负荷因此被三分之二的经线或者说机器方向的线吸收,在四个相应布置的包含交汇部位的区域中在每一个这种区域上的机械负荷则被四分之三的经线或者说机器方向的线吸收,以此类推。如果织缝6对于多个包含交汇部位的区域过短,以至于不能接纳带有焊接好的纱线交织处的处在外部的无交汇部位的区域,那么这些无交汇部位的区域也可以完全或部分布置在全织物5中。
如所述那样设计的柔性的织缝6的一个具体的实施方式在织缝长度为300mm时具有两个包含交汇部位的区域61和62,这些区域沿循环带11的横向QR在织缝6的整个宽度上延伸并且沿循环带11的纵向LR具有60mm的宽度。在每一个包含交汇部位的区域61和62内部,交汇部位优选按一种图案沿运行方向LR相对彼此错开布置。带有焊接好的纱线交织处的无交汇部位的区域71、72和73处在包含交汇部位的区域61和62之间以及在外部与这些区域邻接,无交汇部位的区域同样在织缝6的整个宽度上延伸并且沿循环带11的纵向LR具有60mm的宽度。在这种类型中,相对于完全焊接好的300mm长的织缝6,通过焊接硬化的区域的长度为60mm。基于焊接好的区域在循环平织物带11的运行方向上的较小的尺寸,这种织物带承受了较小的弯曲负荷并且因此更为耐用。此外,通过焊接好的区域与未焊接的区域的交替,固定了对于稳固化织缝而言足够大量的纱线交织处,而不会引起对织物的相应的硬化。因为在窄的硬化的区之间,始终布置着高度柔性的区。
图7a-7d示出了形成交汇部位T的各种可行方案。
图7a示出了交汇部位T,图中可以看到一条以及同一条经线或者说机器方向的线1的两个彼此相向的端部1a和1b。在当前实施例中,端部1a和1b以如下方式相互交汇,即,使它们通过两条直接相邻的纬线2a和2b接合并且在这两条纬线2a、2b之间共同向下从织物导出。交汇部位T从机器方向MD观察从纬线2a延伸至纬线2b。
图7b示出了交汇部位T,图中可以看到一条以及同一条经线或者说机器方向的线1的两个彼此相向的端部1a和1b。在当前实施例中,端部1a和1b以如下方式相互交汇,即,使它们在端部1a、1b从织物导出之前与三条直接相邻的纬线或者说机器横向的线2a、2b和2c共同交织。交汇部位T从机器方向MD观察从纬线或者说机器横向的线2a延伸至纬线或者说机器横向的线2c。
图7c示出了交汇部位T,图中可以看到一条以及同一条经线或者说机器方向的线1的两个彼此相向的端部1a和1b。在当前实施例中,两个端部1a和1b在机器方向观察,围绕两条纬线或者说机器横向的线2a、2b彼此相间隔地从织物导出,因此两条纬线或者说机器横向的线2a、2b布置在交汇部位T上,这两条纬线或者说机器横向的线不与两个端部1a、1b中的任何一个交织。交汇部位T从机器方向MD观察从纬线或者说机器横向的线2a延伸至纬线或者说机器横向的线2d。
图7d示出了交汇部位T,图中可以看到一条以及同一条经线或者说机器方向的线1的两个彼此相向的端部1a和1b。在当前实施例中,端部1a和1b以如下方式相互交汇,即,在端部1a、1b从织物导出之前使这些端部与纬线或者说机器横向的线2a共同交织。交汇部位T从机器方向MD观察局限于纬线或者说机器横向的线2a。
所有在图7a-7d中示出的实施方案都示出了一条和同一条经线或者说机器方向的线的端部。但上述实施方案以同样的方式适用于不同的经线或者说机器方向的线的彼此相向的端部。

Claims (12)

1.一种循环平织物带,其带有交织的线(1、2),其中,至少经线或者说机器方向的线(1)或者纬线或者说机器横向的线(2)由用热塑性聚合物制成的纱线形成,该热塑性聚合物对来自近红外线范围的波长的光是透明的,而且其中,所述纱线的至少一部分在经线或者说机器方向的线(1)和纬线或者说机器横向的线(2)的交织部位上借助布置在所述交织部位的纱线接触区域内、并且吸收来自近红外线范围的光的材料彼此材料锁合地连接,其特征在于,这样材料锁合地拼接的交织部位被布置在三个或多于三个的无交汇部位的条带形织物区域(71、72、73)内,这些织物区域在平织物带(11)的整个宽度上延伸并且在它们之间总是邻接具有交汇部位的织物区域(61、62)。
2.按权利要求1所述的循环平织物带,其中,所述近红外线范围包括700至1200nm的波长范围。
3.按权利要求1或2所述的循环平织物带,其中,带有由经线或者说机器方向的线(1)和纬线或者说机器横向的线(2)的材料锁合地拼接的交织部位的织物区域(71、72、73)的至少一个布置在用于将平织物带(10)的端部连接成循环平织物带(11)的织缝(6)内。
4.按权利要求1、2或3所述的循环平织物带,其中,包含一个或两个材料锁合地拼接的交织部位的织物区域(71、72、73)至少部分在织缝(6)之外伸入全织物(5)中。
5.按前述权利要求之一所述的循环平织物带,其中,经线或者说机器方向的线(1)和纬线或者说机器横向的线(2)对来自近红外线范围的波长的光是透明的,而且其中,在各交织部位上材料锁合的连接借助于通过布置在经线或者说机器方向的线和纬线或者说机器横向的线之间的交织处上的、吸收相应的光的材料吸收来自近红外线范围的波长的光来实现。
6.按权利要求1至4之一所述的循环平织物带,其中,所述经线或者说机器方向的线(1)吸收来自近红外线范围的波长的光,而所述纬线或者说机器横向的线(2)对来自该范围的光是透明的,而且其中,在交织部位上材料锁合的连接借助于通过所述经线或者说机器方向的线(1)吸收来自近红外线范围的波长的光来实现。
7.按权利要求1至4之一所述的循环平织物带,其中,所述纬线或者说机器横向的线(2)吸收来自近红外线范围的波长的光,而所述经线或者说机器方向的线(1)对来自该范围的光是透明的,而且其中,在交织部位上材料锁合的连接借助于通过所述纬线或者说机器横向的线(2)吸收来自近红外线范围的波长的光来实现。
8.一种用于形成稳固化的织缝的方法,其包括下列步骤:
-提供由热塑性材料制的纱线形成的平织物带(10),所述平织物带的经线或者说机器方向的线(1)和/或纬线或者说机器横向的线(2)对来自近红外线范围的波长的光是透明的,而且在所述平织物带的端部(3、4)上,经线或者说机器方向的线(1)为了形成织缝(6)而被露出,
-形成用于将所述平织物带(10)的端部(3、4)连接成循环织物带(11)的织缝(6),
-如果经线或者说机器方向的线(1)和纬线或者说机器横向的线(2)都不吸收来自近红外线波长范围的光,则将吸收来自近红外线波长范围的光的材料置入到经线或者说机器方向的线(1)与纬线或者说机器横向的线(2)的交织处的纱线接触区域内,其中,吸收性材料至少被置入布置在三个或多于三个的无交汇部位的条带形织物区域(71、72、73)内的纱线交织处,这些织物区域在所述平织物带(11)的整个宽度上延伸并且在它们之间总是邻接具有交汇部位的织物区域(61、62),
-用来自近红外线波长范围的光照射至少所述三个或多于三个的无交汇部位的条带形织物区域(71、72、73),以使纱线在吸收区域熔化。
9.按权利要求8所述的方法,其中,将吸收来自近红外线波长范围的光的材料置入到经线或者说机器方向的线(1)与纬线或者说机器横向的线(2)的交织处的纱线接触区域内的过程包括在形成织缝(6)之前在端部(3、4)区域内用吸收光的材料对所述平织物带(10)的经线或者说机器方向的线(1)进行涂层的步骤。
10.按权利要求8所述的方法,其中,将吸收来自近红外线波长范围的光的材料置入到经线或者说机器方向的线(1)与纬线或者说机器横向的线(2)的交织处的纱线接触区域内的过程包括在织缝区域内以及必要时在相邻的全织物区域内用吸收光的材料对纱线进行涂层的步骤。
11.按权利要求9或10所述的方法,其中,吸收性材料在经线或者说机器方向的线(1)与纬线或者说机器横向的线(2)的交织处的纱线接触部位之外通过冲洗、擦拭或刷除而被移除。
12.按权利要求8至11之一所述的方法,其中,在形成织缝(6)时,布置在两个带有材料锁合地连接的纱线交织处的无交汇部位的织物区域之间的交汇部位就所述经线或者说机器方向的线(1)的方向而言被布置在多个彼此不同的部位上。
CN201280010400XA 2011-02-24 2012-02-21 用于平织的循环织物带的稳固化的织缝 Pending CN103392037A (zh)

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