CN100587158C - Wet-pressed tissue and towel products with elevated CD stretch and low tensile ratios made with high solids fabric crepe process - Google Patents

Wet-pressed tissue and towel products with elevated CD stretch and low tensile ratios made with high solids fabric crepe process Download PDF

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CN100587158C
CN100587158C CN 200580011238 CN200580011238A CN100587158C CN 100587158 C CN100587158 C CN 100587158C CN 200580011238 CN200580011238 CN 200580011238 CN 200580011238 A CN200580011238 A CN 200580011238A CN 100587158 C CN100587158 C CN 100587158C
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sheet
ratio
fabric
absorbent sheet
exhibits
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CN 200580011238
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CN1942626A (en )
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S·L·爱德华兹
S·J·麦卡洛
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福特詹姆斯公司
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006Making patterned paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/12Crêping
    • B31F1/126Crêping including making of the paper to be crêped
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002Tissue paper; Absorbent paper
    • D21H27/004Tissue paper; Absorbent paper characterised by specific parameters
    • D21H27/005Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002Tissue paper; Absorbent paper
    • D21H27/008Tissue paper; Absorbent paper characterised by inhomogeneous distribution or incomplete coverage of properties, e.g. obtained by using materials of chemical compounds

Abstract

An absorbent sheet of cellulosic fibers includes a mixture of hardwood fibers and softwood fibers arranged in a reticulum having: (i) a plurality of pileated fiber enriched regions of relatively highlocal basis weight interconnected by way of (ii) a plurality of lower local basis weight linking regions whose fiber orientation is biased along the machine direction between pileated regions interconnected thereby, wherein the sheet exhibits a % CD stretch which is at least about 2.75 times the dry tensile ratio of the sheet. Tensile ratios of from about 0.4 to about 4 are readily achieved.

Description

用高含固量织物起绉工艺制造的具有提高CD拉伸率和低拉伸比率的湿压制的薄织物和手巾产品对于优先权的要求和 CD stretch and low tensile ratios wet pressed tissue and towel products for the priority claim has improved and a high solids fabric crepe process of producing

技术领域 FIELD

本申请是以2004年4月14日提交的美国临时专利申请序列号No. 60/562,025 (代理人案卷No. 2636; GP-04-5)的优先权为基础并要求了优先权。 This application is based on US Provisional Patent April 14, 2004 filed application serial number No. 60 / 562,025 (Attorney Docket No. 2636; GP-04-5) priority basis and claims priority. 本申请也是2003年10月6日提交的名称为“FabricCrepe Process for Making Absorbent Sheet” 的悬而未决的美国专利申请序列号No. 10/679, 862的部分继续,其优先权被要求。 This application is also October 6, 2003 entitled "FabricCrepe Process for Making Absorbent Sheet" pending US Patent Application Serial No. 10/679 part 862 continues its priority is required. 此外,本申请要求了2002年10月7日提交的美国临时专利申请序列号No.60/416,666的申请日的利益。 In addition, this application claims the benefit of US Provisional Patent October 7, 2002 filed application serial number date No.60 / 416,666 is. 本申请部分地涉及一种工艺,其中网幅压缩脱水,起绉或起皱织物和干燥,其中该处理加以控制以生产出具·有高CD拉伸率(streth )和低拉伸(tensile)比率的产品。 This application relates in part to a process in which dehydrated compressed web, creping and drying or creping fabric, wherein the process is controlled to produce a high-issued CD tensile ratio (streth) and low-stretch (Tensile) Ratio The product.

背景技术 Background technique

制造纸巾,手巾(towel )等的方法是大家所熟知的,其中包括各种特征,如杨克式干燥,穿透千燥,织物起皱,干法起皱,湿起皱等等。 Tissue manufacturing process towel (towel) and the like are well known, including various features such as Yankee drying, penetration was dry, fabric creping, dry creping, wet creping and so forth. 普通的湿压工艺与普通的穿透空气干燥工艺相比具有某些优点,其中包括:(I)与不是用热空气的蒸腾干燥法而是水的机械除去相关的低级能源成本;和(2)更高的生产速度,该速度对于使用湿压法形成网幅的工艺更容易实现。 Common conventional wet pressing process and through-air drying processes have certain advantages over, which comprises: (I) with the mechanical removal of water rather than lower energy costs associated with transpiration hot air drying; and (2 ) higher production speeds, the speed of the web for the formation of a wet process using a pressing method is easier to implement. 另一方面,穿透空气干燥处理已经广泛地为新资本投资,特别为柔软,蓬松,优质品质薄织物(tissue)和手巾产品的生产所采用。 On the other hand, through-air drying processing has been widely new capital investment, particularly soft, fluffy, high-quality thin fabric (Tissue) production and towel products employed.

织物起皱已经与造纸工艺相结合使用,它包括纸幅的机械或压缩脱水作为影响产品性能的手段。 Fabric creping has been used in conjunction with papermaking processes which include mechanical or compression of the paper web as a means to influence product dewatering performance. 参见Weldon的美国专利No 4,689,119和4,551,199; Klowak 的4,849,054 和4,834,838;和Edwards 等人的6,287,426。 See Weldon US Patent No 4,689,119 and 4,551,199; Klowak 4,849,054 and 4,834,838; and 6,287,426 of Edwards et al. 织物起皱工艺的操作已经受到将高或中等稠度的网幅有效地转移到干燥器上的困难所妨碍。 Operation of fabric creping processes has been the efficient transfer of high or intermediate consistency of the web to the dryer hindered by difficulties. 也请关注Hermans等人的美国专利No. 6, 350, 349,它公开了网幅从旋转的转移面上湿转移到织物上的方法。 Please also concerns Hermans et al., U.S. Patent No. 6, 350, 349, which discloses a web transfer from a rotating transfer surface onto a wet web. 与织物起皱相关的其它专利一般地说包括下列:Wells等人的4,834,838; 4,482,429; 4,445,638 以及4,440,597。 Other patents relating to fabric creping include the following general terms: Wells et al., 4,834,838; 4,482,429; 4,445,638 and 4,440,597.

与造纸工艺有关,织物模塑也可用作提供织构和膨松度的手段。 Connection with papermaking processes, fabric molding means can be used as texture and bulkiness provided. 在这方面,在Lindsey等人的美国专利No. 6,610,173中见到在湿压情况下压印纸幅的方法,它导致了与偏转元件的偏转管道对应的不对称的突起。 In this regard, see the imprinted web in the wet pressing methods where the Lindsey et al., In U.S. Patent No. 6,610,173, which results in a corresponding deflection element deflecting the pipe asymmetric protrusion. 该'173专利报道了在压制过程中差动速度转移可以改进网幅用偏转元件的模塑和压印。 The '173 patent reports that a differential velocity in the pressing process can change the transfer molding and imprinting of a web with a deflection member. 所生产的薄织物网幅据报道具有特殊组的物理和几何学性能,如图案致密化网络和具有不对称结构的突起的重复图案。 The tissue webs produced are reported to have a special set of physical and geometrical properties, such as a pattern densified network and a repeating pattern of protrusions having asymmetrical structures. 对于使用织构化织物的网幅的湿模塑法,也可参见下列美国专利:6,017,417和5,672,248,两个都授权于Wendt等人;Hermans 等人的5,508,818 和5,510,002 以及Trokhan 的4,637,859。 For textured fabric web of wet molding, also see the following U.S. Patents: 6,017,417 and 5,672,248, both issued to Wendt et al; 5,508 Hermans et al. , 818 and 5,510,002 and 4,637,859 to Trokhan. 对于织物用于为几乎干燥片材赋予织构的用途,参见Drew等人的美国专利No. 6, 585, 855,以及美国专利出版物No. US 2003/00064。 For the fabrics used to impart texture to use almost dried sheet, see Drew et al., U.S. Patent No. 6, 585, 855, and U.S. Patent Publication No. US 2003/00064.

穿透干燥、起绉的产品已公开在下面专利中:Morgan, Jr.等人的美国专利No. 3,994,771; Morton的美国专利No. 4,102,737;和Trokhan的美国专利No. 4,529,480。 Through dried, creped products are disclosed in the following patents: Morgan, Jr. et al., US Patent No. 3,994,771; Morton, US Patent No. 4,102,737; and US Patent No Trokhan . 4,529,480. 在这些专利中描述的方法包括,非常一般地,在多孔载体上形成网幅,加热预干燥该网幅,用由压印织物部分地限定的夹棍将该网幅施加于杨克式干燥器中,然后从杨克式干燥器中起皱该产品。 In the methods described in these patents comprise, very generally, forming a web on a porous support, heating the pre-drying the web, with the web partially defined by an impression nip roll of the web is applied to a Yankee dryer and wrinkling of the product from the Yankee dryer. 相对可渗透性的网幅是典型地需要的,使得难以在所希望的水平上采用再循环供料。 A relatively permeable web is typically required, making it difficult to employ recycle furnish at a desired level. 转移到杨克干燥千燥器上的过程典型地在约60%-约70%的网幅稠度下发生;虽然在一些工艺中该转移是在高得多的稠度下,有时甚至接近空气干燥时进行。 The process proceeds to dry in the Yankee drying typically at from about 60% - about 70% occurred at web consistencies; although in some processes the transfer is at a much higher consistency, sometimes even approaching air-drying time get on.

如以上所指出,穿透干燥产品倾向于显示出增强的蓬松度和柔软度;然而,用热空气的热脱水法倾向于是能量密集的。 As noted above, throughdried products tend to exhibit enhanced bulk and softness; however, tend to use a thermal dehydration of the hot air is energy intensive. 其中网幅机械地脱水的湿压制操作从能量观点考虑是优选的并且更容易地应用于含有再循环纤维的供给料,该再循环纤维倾向于形成比原始纤维有更低渗透性的网幅。 Wherein the webs are mechanically dewatered wet pressing operation is preferred from the viewpoint of energy and are more readily applied to the material comprising feeding recycled fiber, recycled fiber which tends to form webs with a lower permeability than virgin fiber. 许多改进涉及提高压缩脱水产品的蓬松度和吸收性,该产品典型地用造纸越部分地脱水。 Many improvements directed to increasing the compression dehydration and bulkiness of the absorbent product, the paper product is typically used more partially dehydrated.

尽管在现有技术领域中取得一些进展,但是先前已知的湿压方法无法生产出具有优异的物理性能,尤其在较低MD/CD拉伸比率下的提高CD拉伸率的高度吸收性网幅,这些性能是用于优质薄织物和手巾产品中所追求的。 Despite some progress in the prior art, but previously known wet-pressing method can not be produced having excellent physical properties, in particular improved CD stretch at relatively low MD / CD tensile ratio of the height of the absorbent web web, which is a high-performance tissue and towel products pursued.

根据本发明,湿压制的网幅的吸收性、蓬松度和拉伸率能够通过将网幅进行湿织物起皱和将该纤维在起皱织物上重排,与此同时维持高速度、热效率和供料容限以再循环那些普通湿压工艺的纤维,来大幅度地改进。 According to the present invention can be performed, pressed wet web of the absorbent, bulk and stretch rate by wet fabric creping a web and rearranging the fiber on a creping fabric, while maintaining the high speed, thermal efficiency, and feeding recycled fiber tolerance to those of ordinary wet press process, to greatly improve.

本发明的概述 SUMMARY OF THE INVENTION

因此在本发明的第一方面提供了包括在网状结构中排列的硬木纤维和软木纤维的混合物的纤维素纤维的吸收性片材,该网状结构具有:(i)较高局部基重的多个伞形纤维富集区域,利用(ii)多个较低局部基重连接区域来互联。 Thus providing a mixture comprising absorbent sheet arranged in a mesh structure of hardwood and softwood fibers are cellulose fibers in a first aspect of the present invention, the mesh structure having: (i) relatively high local basis weight a plurality of fiber-enriched regions mushroom by (ii) a plurality of lower local basis weight linking regions. 该连接区域的纤维取向是沿着在互联的伞形区域之间的方向发生偏向。 The fiber orientation is biased connection region occurs along the direction between pileated regions interconnected. 该网状结构的相对基重,伞形化(piIeation)程度,硬木与软木比率,纤维长度分布,纤维取向,和几何结构能够加以控制,以使该片材显示出该片材的干拉伸比率的至少约2. 75倍的% CD拉伸率。 The net-like structure relative to the base weight of mushroom (piIeation) degree, hardwood to softwood ratio, fiber length distribution, fiber orientation, and geometry can be controlled, so that the sheet exhibits a dry tensile of the sheet at least about 2.75 times the% CD elongation ratio. 在一个优选的实施方案中该片材显示出至少约5 g/g的空隙体积,至少约5 %的CD拉伸率和低于约I. 75的MD/CD拉伸比率。 In a preferred embodiment the sheet exhibits at least about 5 g / g void volume of at least about 5% of the MD and CD tensile ratio of less than about I. 75 / CD tensile ratio. 在另一个优选实施方案中该MD/CD拉伸比率低于约1.5。 In another preferred embodiment the MD / CD tensile ratio of less than about 1.5. 在另一个优选实施方案中该片材显示出至少约5 g/g的吸收性,至少约10 °/»的CD拉伸率,和低于约2. 5的MD/CD拉伸比率。 In another preferred embodiment the sheet exhibits at least about 5 g / g absorbency, at least about 10 ° / »of CD stretch, and lower than the MD / CD tensile ratio of about 2.5. 在仍然另一个优选实施方案中该片材显示出至少约5 g/g的吸收性,至少约15 %的CD拉伸率,和低于约3. 5的MD/CD拉伸比率。 In yet another preferred embodiment the sheet exhibits at least about 5 g / g absorbency, at least about 15% CD stretch, less than about 3.5 and a MD / CD tensile ratio. 至少约20 %的CD拉伸率和低于约5的MD/CD拉伸比率据信根据本发明能实现。 At least about 20% and CD stretch ratio of less than about 5 MD / CD tensile ratio according to the present invention is believed to be achieved.

从下面的数据可以看出,干拉伸比率的至少约3,3.25或3.5倍的% CD拉伸率根据本发明容易地实现。 As can be seen from the following data,% CD stretch of at least about 3,3.25 or 3.5 times the dry tensile ratio is readily achieved in accordance with the present invention.

通常,至少约4的狀0拉伸率和约O. 4到约4的干拉伸比率是本发明产品典型具有的。 Typically, at least about 4 like 0 elongation O. dry tensile ratio of about 4 to about 4 are typical of products of the present invention has. 优选,该产品具有最少约5或6的CD拉伸率。 Preferably, the product has a minimum of about 5 or 6 CD stretch. 在一些情况下至少约8或至少约10的CD拉伸率是优选的。 In some cases, at least about 8, or at least a CD stretch of about 10 is preferred.

本发明的产品典型地具有至少约5或6 g/g的空隙体积。 The product of the present invention typically have at least about 5 or 6 g / g void volume. 至少约7 g/g, 8 g/g, 9 g/g或10 g/g的空隙体积同样是典型的。 At least about 7 g / g, 8 g / g, 9 g / g or 10 g / g of the same void volume is typical.

本发明的片材可以主要(大于50% )由硬木纤维或软木纤维组成。 Sheet of the present invention may be predominantly (greater than 50%) of hardwood fiber or softwood fibers. 典型地该片材包括这两种纤维的混合物。 The sheet typically comprises a mixture of the two fibers.

在本发明的另一个方面提供了制造供薄织物或手巾产品用的纤维素网幅的方法,该方法包括以下步骤:(a)制备水性纤维素造纸供料;(b)作为在一定喷射速度下从流料箱流出的喷射料来将造纸供料提供到成形织物上;(c)将造纸供料压缩脱水形成具有造纸纤维的明显随机分布的初生网幅;(d)将具有明显随机纤维分布的脱水网幅施加于在第一种速度下运动的移动式转移表面上;(e)利用含图案的起·皱传送带在约30%-约60%的稠度下将该该网幅从转移面上进行传送带起皱,该起皱步骤是在压力下在转移面和起皱传送带之间限定的传送带起皱辊隙中进行,其中该传送带是在比转移面的速度更缓慢的第二速度下运行。 In a further aspect the present invention provides a method of manufacturing the thin fabric or for cellulosic products with the towel web, the method comprising the steps of: (a) preparing an aqueous cellulosic papermaking furnish; (b) as a constant injection speed under the jet stream headbox flows out to the papermaking furnish supplied to the forming fabric; (c) the papermaking compactively dewatering to form a nascent web having an apparently random papermaking fiber distribution; (d) having the apparently random fiber dewatering the web on the distribution to a translating transfer surface moving at a first speed; (e) use of wrinkle-containing pattern from the conveyor belt at about 30% - about 60% consistency of the web from the transfer creping surface speed of the second conveyor belt, the creping step occurring between the transfer surface and the creping belt conveyor defining creping nip under pressure where the belt is slower than the speed of said transfer surface under run. 该传送带图案,辊隙参数,速度δ和网幅稠度进行选择,使得该网幅从转移面上起绉并再分配在起皱传送带上形成具有网状结构的网幅,该网状结构具有不同局部基重的多个互连区域,其中包括至少(i)较高局部基重的多个纤维富集区域,这些纤维富集区域利用(ii)多个较低局部基重区域来互联。 The belt pattern, nip parameters, velocity δ and web consistency being selected such that the web is creped from the transfer surface and redistributed to form a web having a network structure on the creping belt, the mesh structure having a different a plurality of interconnected local basis weight regions, wherein the plurality of fiber enriched regions comprising at least (i) of relatively high local basis weight, using these fiber enriched regions (ii) a plurality of lower local basis weight regions interconnected. 该网幅然后干燥。 The web is then dried. 可以看出,硬木与软木比率,纤维长度分布,整个起绉,喷流速度,干燥和传送带起皱步骤加以控制以及起皱传送带图案进行选择,使得该网幅体现特征于它所具有的阢0拉伸率是该网幅的干拉伸比率的至少约2.75倍。 As can be seen, hardwood to softwood ratio, fiber length distribution, overall crepe, jet speed, drying and belt creping steps are controlled and the creping belt pattern is selected such that the web embodying features of the web to which it has Wu 0 stretching ratio is at least about 2.75 times the dry tensile ratio of the web. 这些参数也进行选择,使得以上关于本发明产品所指出的性能可以在本发明的各种实施方案中实现。 These parameters are also selected, such that the product of the invention on the above indicated properties may be implemented in various embodiments of the present invention.

本发明的工艺可以通过用于生产供薄织物制造用的基础片材的主要硬木纤维来实施或当希望制造手巾时,本发明的工艺可以通过主要由软木纤维组成的供料来实施。 Process of the invention may be implemented in manufacturing diapers or when desired, the process of the invention may be implemented through the feed consisting mainly of softwood fibers for the production of hardwood fibers primarily sheer fabric used for producing the base sheet by a. 本领域中的技术人员将会认识到,如果需要的话,可以选择其它添加剂。 Those skilled in the art will recognize that, if desired, other additives may be selected.

根据本发明已经发现,当希望压延时,在基重上有局部变化的网幅优选在钢丝压延辊之间进行压延。 The present inventors have found that, when rolling is desired, there are local variations in the basis weight of the web is preferably calendered between steel calender roll.

本发明的传送带起绉网幅典型地体现特征于纤维富集区域的纤维在横向上发生偏向,这可从所附显微照片看出。 A belt-creped web of the present invention is typically embodied in a lateral deflection occurs wherein the fiber enriched regions of the fiber, as can be seen from the attached photomicrographs.

一般该工艺是在约10 %到约100 °/。 The process is generally from about 10% to about 100 ° /. 的织物起绉下操作。 Operation in the creping fabric. 优选实施方案包括这样一些,其中该工艺是在至少约40, 60, 80或100%或更高的织物起绉下操作。 Preferred embodiments include those wherein the process is at least about 40, 60, 80 or 100% or more in a fabric creping operation. 本发明的工艺可以在125 %或更高的织物起绉下操作。 The process of the invention may be operated at 125% or more of the creping fabric.

本发明的方法是极度地供料容忍的,并且能够用大量的次级纤维来操作,如果希望的话。 The method of the present invention is extremely tolerant to feed, and can be used to operate a large number of secondary fibers, if desired.

本发明的仍然其它特征和优点将从后面的讨论变得十分清楚。 The present invention still further features and advantages will become apparent from the following discussion.

附图的简述本发明参考附图来详细描述,其中: Brief Description of the present invention is described in detail with reference to the accompanying drawings, wherein:

图I是沿着织物起绉的片材的纤维富集区域的纵向上的截面的显微照片(I2 0X); Figure I is a photomicrograph (I2 0X) on a longitudinal cross section of the fiber enriched regions along the creping fabric sheet;

图2是MD/CD干拉伸比率-对-喷流/丝网速度δ (英尺/分钟)的曲线图; FIG 2 is a MD / CD dry tensile ratio - to - jet / wire velocity [delta] (ft / min) of the graph;

图3是织物起绉网幅的织物侧的显微照片(IOX); 3 is a fabric-creped web of the photomicrograph the fabric side (the IOX);

图4是说明了可用于生产该产品和实施本发明方法的造纸机的示意图; FIG 4 is a schematic diagram useful for producing the product and the method of the present embodiment of the invention the paper machine;

图5和6是以各种织物和起皱率生产的13磅片材的CD拉伸率-对-MD/CD拉伸比率的曲线图; 5 and 6 are various fabrics and crepe ratio produced 13 lbs CD stretch of the sheet - graph of -MD / CD tensile ratio;

图7 - 9是本发明的各种24镑片材的CD拉伸率-对-干拉伸比率的曲线图;和 7 - 9 is 24 pounds of various CD stretch sheet of the present invention - on - dry tensile ratio graph; and

图IO是钢和橡胶压延辊的不同组合的厚度减少-对-压延机荷载的曲线图。 FIG IO is the thickness of the various combinations of steel and rubber calender roll is reduced - of - graph of load rolling machine.

详细叙述 Detailed description

本发明参考几个实施方案和多个实施例进行详细描述。 Several embodiments of the present invention with reference to a plurality of embodiments and embodiments described in detail. 此类讨论仅仅是为了举例说明的目的。 Such discussion is for purposes of illustration. 在所附权利要求中阐明的本发明的精神和范围之内的对于具体实施例的改进对于本领域中的技术人员来说是显而易见的。 Modifications to particular embodiments for a skilled in the art it will be apparent within the spirit and scope of the invention set forth in the appended claims.

在这里使用的术语给出了它的具有紧接着在下面阐明的举例性质的定义的寻常意义。 The terminology used herein is given its ordinary meaning example having the properties set forth immediately below defined.

本发明的产品的吸收性(SAT)用简单的吸收性试验器来测量。 The absorbent product of the present invention (SAT) is measured with a simple absorbency tester. 筒单的吸收性试验器是测量薄织物,卫生巾,或手巾的样品的亲水性和吸收性的特别有用的装置。 Single cylinder test is measuring the absorbent tissue, a hydrophilic sanitary napkin, or towel sample and the absorption apparatus are particularly useful. 在这一试验中2. O英寸直径的薄织物,卫生巾,或手巾的样品被安放在顶部平直塑料盖与底部刻纹槽的样品板之间。 In this test, 2. O inch diameter tissue, napkins, or towel sample is placed between the sample top flat plastic cover plate and the bottom of the groove engraved. 该薄织物,卫生巾,或手巾样品圆盘利用1/8英寸宽圆周法兰面积来固定就位。 The tissue, napkin, or towel sample disc using a 1/8 inch wide circumference flange area is held in place. 样品没有被失持器压缩。 No loss of compressed sample holder. 通过I mm直径导管将73。 I mm diameter catheter through 73. F的去离子水在底部样品板的中心上引入到样品中。 F deionized water in the center of the bottom sample plate into the sample. 该水处于-5 mm的静水压头。 The water is at a hydrostatic head of -5 mm. 在测量的开始由仪器机构所引入的脉冲引发流动。 In the flow measurement is started by the pulse initiator introduced instrument mechanism. 水因此利用毛细管作用被该薄织物,卫生巾,或手巾样品从这一中心进入点沿径向向外浸渗。 Thus using the capillary action of water the tissue, napkin, or towel sample from this central point into the radially outwardly impregnation. 当水浸渗的速率下降到低于O. 005 gm水/每5秒时,该试验终止。 When / water impregnation rate drops below O. 005 gm water per 5 seconds, the test is terminated. 从贮器中除去的并被样品吸收的水的量被称量并报导为多少克的水/每平方米的样品,除非另有说明。 The amount of water absorbed by the sample and is removed from the reservoir is weighed and reported as how many grams of water / square meter per sample, unless otherwise indicated. 在实践中,使用M/K Systems Inc. Gravimetric Absorbency Testing System。 In practice, the use of M / K Systems Inc. Gravimetric Absorbency Testing System. 这是可从M/K Systems Inc. , 12 Garden Street, Danvers, Mass. , 01923获得的商业系统。 It is available from M / K Systems Inc., 12 Garden Street, Danvers, Mass., 01923 commercial systems available. 也称为SAT的WAC或吸水容量实际上由仪器本身测得。 WAC or water absorbent capacity also referred to as SAT is actually obtained by the measurement instrument itself. WAC被定义为重量-对-时间曲线具有“零”斜率的点,即样品已经停止吸收。 WAC is defined as the weight - on - time curve point having a "zero" slope, i.e., the sample has stopped absorbing. 试验的终止标准是以经过固定的时间之后所吸收的水重量的最大变化来表达的。 Test termination criteria is expressed in maximum change in water weight after a fixed time absorbed. 这基本上是重量-对-时间曲线的零斜率的估计。 This is basically wt - estimated time of zero slope curve - right. 该程序使用经过5秒时间间隔的O. 005g的变化作为终止标准;除非规定了“Slow SAT”,在这种情况下中断标准是在20秒中的I mg。 The program uses a change O. 005g after 5 seconds interval as termination criteria; unless specified "Slow SAT", in which case the cut off criteria is I mg in 20 seconds.

在整个说明书和权利要求中,当我们谈到具有纤维取向的明显随机分布(或使用类似术语)的初生网幅时,我们指当已知的成形技术用于将供料沉积在成形织物上时所导致的纤维取向的分布。 Throughout the specification and claims, when we talk about an apparently random distribution of fiber orientation (or use like terms) of a nascent web, we mean when known forming techniques are used in the feed is deposited on the forming fabric when the distribution of the fiber orientation caused. 当在显微镜下观察时,该纤维即使取决于喷流-丝网速度Qhe jet to wirespeed),有相对于纵向取向的显著偏向,使得该网幅的纵向拉伸强度超过横向拉伸强度,仍产生随机取向的外观。 When viewed under a microscope, the fiber even if the jet flow depending - wire velocity Qhe jet to wirespeed), there is a significant bias with respect to the longitudinal orientation, such that the longitudinal tensile strength of the web exceed the transverse tensile strength, still produce appearance of randomly oriented. 除非另作说明,“基重”,BWT,bwt等等是指产品的3OOO平方英尺令的重量。 Unless otherwise specified, "basis weight", BWT, bwt and so forth refers to the weight 3OOO square foot ream of product. 稠度指初生网幅的固体含量百分数,例如,按照完全干燥的基础来计算。 Consistency refers to a solid content percentage of a nascent web, for example, in a completely dry basis calculated. “空气干燥”指包括残留水分,按照惯例对于纸浆至多约10°/»水分和对于纸张有至多约6%水分。 "Air dry" means including residual moisture, by convention the pulp up to about 10 ° / »moisture for paper and up to about 6% moisture. 具有50%水和50%完全干燥的纸浆的初生网幅具有50%的稠度。 Nascent web having 50% water and 50% of the fully dried pulp having a consistency of 50%.

该术语“纤维素”,“纤维素片材”等等在意义上包括引入了含有纤维素作为主要成分的造纸纤维的任何产品。 The term "cellulosic", "cellulosic sheet" and the like in the sense of including the introduction of any products containing cellulose as a main component of the papermaking fibers. “造纸纤维”包含包括纤维素纤维的原始纸浆或再循环(二次)纤维素纤维或纤维混合物。 "Papermaking fibers" includes virgin pulps or recycle (secondary) cellulosic fibers or fiber mixtures comprising cellulose fibers. 适合于制造本发明的网幅的纤维包括:非木纤维,如棉纤维或棉衍生物,马尼拉麻,南非槿麻,沙巴草,亚麻,芦苇草,稻草,黄麻,甘蔗渣,马利筋属植物花纤维,和菠萝叶纤维;以及木纤维,如从每年落叶树和针叶树获得的那些,其中包括软木纤维,如北方和南方软木牛皮纸纤维;硬木纤维,如桉树,楓木,桦树,山杨等。 The present invention suitable for producing a fiber web comprising: nonwood fibers, such as cotton fibers or cotton derivatives, abaca, kenaf, South Africa, Sabah grass, flax, reed, straw, jute hemp, bagasse, milkweed floral fibers, and pineapple leaf fibers; and wood fibers, such as obtained from deciduous and coniferous trees per year to those, including softwood fibers, such as northern and southern softwood kraft fibers; hardwood fibers, such as eucalyptus, maple, birch, aspen Wait. 造纸纤维能够利用现有技术领域中的技术人员熟悉的许多化学制浆方法中的任何一种来从它们的来源物质释放出来,此类方法包括硫酸盐,亚硫酸盐,多硫化物,碱法制浆,等等。 Papermaking fibers can be any of a number of chemical pulping using prior art methods familiar to those skilled in the art to be released from their source material, including sulfate, sulfite, polysulfide, soda pulp, and so on. 如果需要的话该纸浆能够通过化学方法漂白,其中包括使用氯,二氧化氯,氧等。 If desired, the pulp can be bleached by chemical means, including the use of chlorine, chlorine dioxide, oxygen and the like. 本发明的产品可以包括普通纤维(不论从原始纸浆还是从再循环的来源得到)和高粗糙度富含木质素的管式纤维的共混物,如漂白化学热机械纸浆(BCTMP)。 The product of the present invention may include ordinary fibers (whether derived from virgin pulp or recycle sources) and high roughness blend of lignin-rich tubular fibers, such as bleached chemical thermomechanical pulp (BCTMP). “供料(Furnishes)”和类似术语指包括用于制造纸类产品的造纸纤维,湿强度树脂,解黏结剂和类似原料的一种水性组合物。 "Feed (Furnishes)" and similar terms refers to an aqueous composition comprising a paper product manufacturing papermaking fibers, wet strength resins, de-bonding agents, and similar materials.

如在这里使用的,术语“将网幅或供料压缩脱水”指通过在脱水毡上湿压的机械脱水,例如,在一些实施方案中通过利用在网幅表面上连续地施加的机械压力就象在压辊和压鞋之间的夹辊中一样,其中该网幅与造纸毡接触。 As used herein, the term "the web or compactively dewatering" refers to mechanical dewatering in the dewatering felt wet pressing, for example, in some embodiments, by mechanical pressure using a continuously applied on the web surface on as in the nip roll between the roll and the shoe, wherein the web is in contact with the papermaking felt. 该术语“压缩脱水”用来区别一些工艺,其中网幅的初始脱水主要通过热方式来进行,例如在以上指出的Trokhan的美国专利No. 4,529,480和Farrington等人的美国专利No.5,607,551中通常就是这样。 The term "compression dewatering" is used to distinguish some processes wherein the initial dewatering of the web is mainly carried out by thermal means, for example, U.S. Pat noted above U.S. Patent No. 4,529,480 to Trokhan, and No. Farrington et al., In 5,607,551 often the case. 压缩脱水网幅因此指,例如,通过对其施加压力从具有低于30%左右的稠度的初生网幅中除去水和/或通过对其施加压力将网幅的稠度提高了约15%或更高。 Thus compression dewatered web means, e.g., by removal of water and / or by application of pressure to improve the consistency of the web by about 15 percent from a nascent web having a consistency of less than about 30% of the pressure applied thereto or high.

“织物侧”和类似术语指网幅的与起皱和干燥用织物接触的那一侧。 "Fabric side" and like terminology refers to the side of the web in contact with the creping and drying fabric. “干燥器侧”或类似术语是该网幅的与网幅的织物侧相对的那一侧。 "Dryer side" or like terms is the side opposite the fabric side of the web of the web.

Fpm指英尺/分,而稠度指网幅的重量百分数纤维。 Fpm refers to feet / minute, while consistency refers to weight percent fiber web.

MD指纵向和CD指横向。 MD means machine direction and CD means cross direction.

辊隙参数包括,没有限制,轧点压力,辊隙长度,支承辊硬度,织物接近角,织物引出角度,均匀性,以及在辊隙的表面之间的速度δ。 Nip parameters include, without limitation, nip pressure, nip length, backing roll hardness, fabric approach angle, fabric lead angle, uniformity, and velocity between the surface of the nip δ.

辊隙长度指辊隙表面发生接触的长度。 Nip length refers to the length of the contact of the nip surfaces. · “在线”和类似术语指不从生产该网幅的造纸机中除去该网幅所进行的工艺步骤。 · "On-line" and like terms refer to the web process step performed without removing the web from the production of a paper machine. 当它在卷绕之前没有切断的情况下被拉伸或压延时,网幅在线拉伸或压延。 In the case where it is not cut when stretched before winding, or calendered, drawn or calendered web line.

移动式转移面指一个表面,该网幅从该表面上起绉进入到该起皱织物中。 The translating transfer surface refers to a surface, the web is creped from the surface into the creping fabric. 移动式转移面可以是下面所述的转鼓的表面,或可以是连续光滑运送带的表面或具有表面织构等的另一种移动织物。 The translating transfer surface may be below the surface of a rotating drum, or may be smooth and continuous conveyor belt or another moving fabric surface or the like having a textured surface. 移动式转移面需要支持该网幅和促进高固体起皱,这可从下面的讨论领会到。 The translating transfer surface needs to support the web and facilitate the high solids creping, it can be appreciated from the discussion below.

在这里报导的厚度和/或膨松度可以是1,4或8片厚度。 Reported herein in thickness and / or bulk may be 4 or 8 thickness. 各片材被堆叠和在堆叠体的中心部分上进行厚度测量。 Each sheet thickness measurement and are stacked on the central portion of the stack. 优选,试验样品在23°C ± I. (TC (73. 4。±1.8。F)的氛围中在50%相对湿度下调理至少约2小时,和然后用Thwing - Albert Model 89 - II - JR 或ProgageElectronic Thickness Tester,以2-英寸(50. 8-mm)直径测石占,539±10克净荷重和0.231英寸/秒下降率进行测量。对于成品试验,每片的试验产品必须具有与销售产品相同的层数。对于通常的试验,选择八个片材并堆叠在一起。对于卫生巾试验,在堆叠之前将卫生巾展开。对于从绕线器上退绕的基片试验,所试验的各片材必须具有与从绕线器上退绕生产的相同层数。因为从造纸机卷筒上松下的基片试验,必须使用单层(single plies)。片材在MD上定向排列被堆叠在一起。左通當的压花成印刷产品上,如吴完全者可能的话,左这些区城中避免进行测量。膨松度也能够通过将厚度除以基重,以体积/重量的单位表达。 Preferably, the atmosphere in the test sample 23 ° C ± I. (TC (73. 4. ± 1.8.F) of at least about 2 hours conditioning at 50% relative humidity, and then by Thwing - Albert Model 89 - II - JR or ProgageElectronic Thickness Tester, to a 2-inch (50. 8-mm) diameter stone accounted measured, 539 ± 10 g of net load descent rate 0.231 inches / sec measured. for finished product testing, each test piece must have a product sales the same number of layers of products. for a typical experiment, eight sheets are selected and stacked together. for napkin testing, napkins prior to stacking will expand. for the test substrate from the unwinding bobbin, tested each sheet must have the same number of layers and unwound from the winding device production. because the test substrate from Matsushita paper machine reel, single layer must be used (single plies). aligned sheets are stacked in the MD together left when embossed on a printed product, such as by Wu entirely possible, avoid left city zones measured. the bulk thickness is possible by dividing the basis weight by volume / weight expressed in units.

干拉强度(MD和CD),拉伸率,它们的比率,模量,破裂模量,应力和应变是用标准Instron试验设备或可以各种方式构型设计的其它合适伸长拉伸试验机来测量的,典型地使用在50°/。 Other suitable elongation tensile tester, the dry tensile strength (MD and CD), stretch rate, the ratio thereof, modulus, break modulus, stress and strain are used or can be designed in various ways configurations standard Instron test equipment measured, typically used in the 50 ° /. 相对湿度和23°C(73.4° F)下调理过的薄织物或手巾的3或I英寸宽的带材,其中拉伸试验在2英寸/分钟的十字头速度下进行。 Opsonized relative humidity and 23 ° C (73.4 ° F) 3 or I inch wide strip of thin cloth or towel, wherein the tensile test was conducted at a crosshead speed of 2 in / min.

拉伸比率简单地是由前述方法测定的数值的比率。 Tensile ratios are simply ratios of the values ​​determined by the aforementioned method. 拉伸比率指MD/CD干拉伸比率,除非另有说明。 Tensile ratio refers to the MD / CD dry tensile ratio unless otherwise stated. 除非另作说明,拉伸性能是干片材性能。 Unless otherwise specified, a tensile property is a dry sheet property. 拉伸强度有时筒称为拉伸。 Tensile strength is sometimes referred to as tubular stretching. 除非另作说明,断裂拉伸强度,拉伸等在这里报道。 Unless otherwise specified, tensile strength, stretching reported here.

“织物起绉比率”是在起皱织物和成型丝网(forming wire)之间的速度差的表达并且典型地作为紧接着在起皱之前的网幅速度与紧接着在起皱之后的网幅速度的比率来计算,因为成型丝网和转移面典型地但不一定地在同一速度下操作: "Fabric crepe ratio" is an expression of the speed between the creping fabric and the forming wire (forming wire) and typically the difference as the web speed immediately before creping and the web immediately after the creping calculated speed ratio, because the forming wire and transfer surface are typically, but not necessarily operate at the same speed:

织物起绉比率=转移圆筒速度+起皱织物速度 Fabric crepe ratio = transfer cylinder speed + creping fabric speed

织物起绉也能够表达为按照下式计算的百分比: Fabric crepe can also be expressed as a percentage calculated according to the following formula:

织物起绉,百分数=[织物起绉比率-I] X 100% Fabric crepe, percent = [Fabric crepe ratio -I] X 100%

线起绉(有时称为整个起绉),卷筒起绉等等类似地按以下所讨论的方式来计算。 Line crepe (sometimes referred to as overall crepe), reel crepe and so forth similarly to the manner discussed below is calculated.

PLI或pli指磅力/每线性英寸。 PLI or pli means pounds force / per linear inch.

“主要”指大于约50°/»,典型地按重量;当关于纤维时按完全干燥的基础。 "Main" means that greater than about 50 ° / », typically by weight; when completely dry press on the fiber base.

有时称为P+J的Pusey和Jones (P + J)硬度(凹陷)是根据ASTM D531测量的,并且指凹陷数(标准试样和条件)。 Sometimes referred to as P + J a Pusey and Jones (P + J) hardness (recess) is measured according to ASTM D531, and refers to the indentation number (standard specimen and conditions).

速度δ指线速度的差异。 It refers to the speed difference δ line speed.

下面所述的空隙体积和/或空隙体积比率是通过用非极性P0R0FIL®液体饱和试样片材和测量所吸收的液体的量来测定的。 Following the void volume and / or void volume ratio is determined by the amount of liquid saturated with a nonpolar liquid P0R0FIL® measurement sample sheet and absorbed. 所吸 The suction

J 4- ΑΛ AA /Jc A -itJ· τΐίι nti AA ltd? -io -fir "2Γ 音"-¾* 'hrt(PWI)表示为所吸收液体的克数/每克的在片材结构中的纤维再乘以100,如以下所表示。 J 4- ΑΛ AA / Jc A -itJ · τΐίι nti AA ltd? -io -fir "2Γ tone" -¾ * 'hrt (PWI) is expressed as grams of liquid absorbed / g in the sheet structure multiplied by the fiber 100, as represented below. 更具体地说,对于所试验的各单层片材样品,选择8个片材和裁切成I英寸XI英寸正方形(在纵向上I英寸和在横向上I英寸)。 More specifically, for each of the single-layer sheet samples tested, select 8 sheets and cut into inch I inch square XI (in the longitudinal direction and I inch I inch in the transverse direction). 对于多层产品样品,各层是作为独立实体来测量的。 For multi-ply product samples, each layer is measured as a separate entity. 多层样品应该从用于试验的各层位置上分离成独立的各单层和共8个片材。 The multilayer samples should be separated from the layers used for the test on the position into separate individual layers and a total of eight sheets. 称量和记录各试样的干燥重量,精确至O. 0001克。 Measure and record the dry weight of each sample to the nearest O. 0001 grams. 将试样置于含有比重为1.875克/每立方厘米的POROFIL®液体(可从CoulterElectronics Ltd. , NorthwelI Drive, Luton, Beds, England; PartNo. 9902458获得)的盘子中。 The sample is placed having a specific gravity of 1.875 g / cc per liquid POROFIL®; dish (available from CoulterElectronics Ltd., NorthwelI Drive, Luton, Beds, England. PartNo 9902458 obtained) was. 在10秒后,用镊子在一个角的非常小的边缘(1-2毫米)夹起该试样并从液体中取出。 After 10 seconds, the tweezers in a very small corner edge (1-2 mm) the sample is picked up and removed from the liquid. 让该角在最上面来夹持该试样,让过量液体经过30秒滴淌掉。 So that the angle at the top of the sandwiched sample, so that excess liquid dripping off after 30 seconds. 将试样的较低角轻轻地接触(低于1/2 秒接触)在#4 滤纸(Whatman Lt.,Maidstone, Engla nd)上,以除去任何过量的最后部分液滴。 The lower the contact angle of the sample gently (less than 1/2 second contacts) on # 4 filter paper (Whatman Lt., Maidstone, Engla nd), to remove any excess of the last part of the droplet. 立即称量该试样,在10秒之内,记录该重量精确至O. 0001克。 The sample is weighed immediately, within 10 seconds, recording the weight to the nearest O. 0001 grams. 各试样的PWI,表示为POROFIL®液体的克数/每克的纤维,计算如下: PWI for each specimen, expressed as grams POROFIL® liquid / per gram of fiber, is calculated as follows:

PWI = [ (W2-W1) /W1] X 100% PWI = [(W2-W1) / W1] X 100%

其中 among them

“I”是试样的干重,以克计;和U'是试样的湿重,以克计。 "I" is the dry weight of the specimen, in grams; and U 'is the wet weight of the specimen, in grams.

全部八个独立试样的PWI按照以上所述方法来测定,八个试样的平均值是样品的PWI。 All eight independent PWI sample determined according to the above method, the average of eight specimens is the PWI sample.

该空隙体积比率是通过将PWI除以I. 9 (流体的密度)将所得比率表达为百分数来计算的,而空隙体积(gms/gm)简单地是重量增加率;即,PWI除以100。 The void volume ratio is obtained by dividing the PWI I. 9 (density of the fluid) and the resulting ratio expressed as a percentage calculated, and the void volume (gms / gm) is simply the weight increase; that is, PWI divided by 100.

根据本发明,吸收性纸幅是通过将造纸纤维分散到水性供料(淤浆)中并将该水性供料沉积到造纸机器的成型丝网上来制备的,典型地经由从流料箱流出的喷流。 According to the present invention, an absorbent paper web is by dispersing papermaking fibers into aqueous feed (slurry) in the aqueous preparation onto and the feed is deposited onto the forming wire papermaking machine, typically through the outflow from the headbox jet. 任何合适的成型流程都可以使用》例如,除了弗德林尼尔造纸机成形器之外的广泛但非穷举的清羊包括新月形成形器,C-形包裹双丝网成形器,S-形包裹双丝网成形器,或吸取胸辊成形器。 Any suitable molding process may be used. "For example, in addition to Fourdrinier formers extensive but non-exhaustive Qing Yang includes a crescent former, C- shaped wrap twin-wire former, S - shaped wrap twin-wire former, or a suction breast roll former. 该成形织物能够是任何合适多孔单元,其中包括单层织物,双层织物,三层织物,光聚合物织物,等等。 The forming fabric can be any suitable foraminous member including single layer fabrics, double layer fabrics, triple layer fabrics, photopolymer fabrics, and the like. 在成形织物领域中的非穷举的背景技术包括美国专利No. 4,157,276; 4,605,585; 4,161,195;3,545,705; 3,549,742; 3,858,623; 4,041,989; 4,071,050;4,112,982; 4,149,571; 4,182,381; 4,184,519; 4,314,589; Background Art In a non-exhaustive art in the forming fabric includes U.S. Pat. No. 4,157,276; 4,605,585; 4,161,195; 3,545,705; 3,549,742; 3,858,623; 4 , 041,989; 4,071,050; 4,112,982; 4,149,571; 4,182,381; 4,184,519; 4,314,589;

4, 359, 069; 4, 376,455; 4, 379, 735; 4,453,573; 4, 564,052; 4, 359, 069; 4, 376,455; 4, 379, 735; 4,453,573; 4, 564,052;

4, 592, 395; 4,611,639; 4,640,741; 4, 709,732; 4,759,391;4,759,976; 4,942,077; 4,967,085; 4,998,568; 5,016,678; 4, 592, 395; 4,611,639; 4,640,741; 4, 709,732; 4,759,391; 4,759,976; 4,942,077; 4,967,085; 4,998,568; 5,016,678;

5, 054, 525; 5,066,532; 5,098,519; 5, 103,874; 5,114,777; 5, 054, 525; 5,098,519;; 5,066,532 5, 103,874; 5,114,777;

5, 167, 261; 5,199, 261; 5, 199, 467; 5,211,815; 5, 219, 004;5,245,025; 5, 277, 761; 5,328,565;和5,379,808,全部这些专利以它们的全部内容被引入这里供参考。 5, 167, 261; 5,199, 261; 5, 199, 467; 5,211,815; 5, 219, 004; 5,245,025; 5, 277, 761; 5,328,565; and 5,379,808, all these patents are incorporated herein by reference in their entirety. 特别为本发明可使用的一种成形织物是由Voith Fabrics Corporation, Shreveport, LA 制得的Voith织物系列成形织物2164。 A forming fabric of the present invention can be used particularly by Voith Fabrics Corporation, Shreveport, LA resulting Voith Fabric 2164 series forming fabric.

水性供料在成型丝网或织物上的泡沫形成法可以用作控制片材在织物起皱之后的渗透性或空隙体积的手段。 The aqueous furnish on a forming wire or fabric may be used as a method of foam formation permeability or void volume of the sheet after fabric-creping the control means. 泡沫体形成技术已公开在美国专利No. 4,543,156和加拿大专利No. 2,053,505中,它们的公开内容被引入这里供参考。 Foam-forming techniques are disclosed in U.S. Patent No. 4,543,156 and Canadian Patent No. 2,053,505, the disclosures of which are incorporated herein by reference. 发泡的纤维供料是由纤维与发泡的液体载体混合所得的水性淤浆制成,刚好在后者被引入到流料箱中之前。 The foamed fiber furnish is obtained by mixing an aqueous slurry of fibers and foamed liquid carrier is made, just before the headbox is introduced into the latter. 提供到该系统中的该纸浆淤浆具有在约O. 5重量百分数至约7重量百分数纤维之间,优选在约2. 5重量百分数至约4. 5重量百分数之间的稠度。 The pulp slurry supplied to the system has a percent O. about 5 weight percent to about 7 weight between the fibers, preferably percent to a consistency of between about 4.5 weight percent of from about 2.5 wt. 该纸浆淤浆被添加到含有50-80%空气(按体积)的包括水,空气和表面活性剂的起泡液中,利用来自自然紊流的简单混合作用和在处理部件中所固有的混合作用来形成具有在约O. lwt%至约3wt%纤维的范围内的稠度的起泡纤维供料。 The pulp slurry is added to the air containing 50-80% (by volume) foamed liquid comprising water, air and a surface active agent, using a simple mixing from natural turbulence and processing means inherent in the mixing foaming action of fibers forming the feed has a range from about O. lwt% to about 3wt% of fiber consistency. 该纸浆作为低稠度淤浆的添加会导致从成型丝网中回收过量的起泡液。 The low consistency pulp will be added as a slurry results in excess foamed liquid recovered from the forming wires. 过量的起泡液从系统中排出并可以在其它地方使用或经过处理从中回收表面活性剂。 Excess foamed liquid is discharged from the system and may be recovered therefrom using treated or surfactant elsewhere.

该供料可含有化学添加剂来改变所生产的纸的物理性能。 The feed may contain chemical additives to alter the physical properties of the paper produced. 这些化学品能够由本领域中技术人员很好地理解并且可以按照任何已知的结合方式来使用。 These chemicals can be well understood by the skilled person in the art and may be used in any known bonding method. 此类添加剂可以是表面改性剂,软化剂,解粘剂,强度助剂,胶乳,不透明剂,荧光增白剂,染料,颜料,施胶剂,阻隔性化学品,助留剂,减溶剂,有机或无机交联剂,或它们的结合物;这些化学品任选地包括多元醇,淀粉,PPG酯,PEG酯,磷脂,表面活性剂,多胺,HMCP等等。 Such additives may be surface modifiers, softeners, debonders, strength aids, latexes, opacifiers, optical brighteners, dyes, pigments, sizing agents, barrier chemicals, retention aids, insolubilizers , organic or inorganic crosslinkers, or combinations thereof; these chemicals optionally comprising polyols, starches, PPG esters, PEG esters, phospholipids, surfactants, polyamines, HMCP like.

该纸浆能够与强度调节剂如湿强度剂,干强度剂和解粘剂/软化剂等等混合。 The pulp is capable of strength adjusting agents such as wet strength agents, strength agents and debonders / softeners and so on dry mixing. 合适的湿强度剂是本领域中技术人员已知的。 Suitable wet strength agents are known to those skilled in the art. 有用的强度助剂的全面但非穷举的清单包括脲曱醛树脂,三聚氰胺曱醛树脂,乙酸■酸化聚丙婦酿胺树脂,聚醜肢_表氣醇树脂等等。 Useful comprehensive but non-exhaustive list of Yue strength aids include urea-formaldehyde resins, melamine formaldehyde resins Yue, polyacrylic acid ■ acidified women stuffed amine resins, polyvinyl alcohol gas ugly limb _ Table resins and the like. 热固性聚丙婦醜胺是通过如下生产的:让丙烯酰胺与二烯丙基二曱基氯化铵(DADMAC)反应生产出阳离子型聚丙烯酰胺共聚物,它最终与乙二醛反应生产出阳离子交联湿强度树脂,乙醛酸化聚丙烯酰胺。 Polypropylene amines thermosetting ugly women is produced by: reacting acrylamide with diallyl ammonium chloride Yue (of DADMAC) to produce a reaction of cationic polyacrylamide copolymer which is ultimately reacted with glyoxal to produce a cationic cross- linking wet strength resin, glyoxylated polyacrylamide. 这些材料一般描述在授权于Coscia等人的美国专利No 3,556,932和授权于Williams等人的美国专利No 3,556,933中,其中两者都以全部内容引入这里供公开。 These materials are generally described in U.S. Patent No. issued to Coscia et al., U.S. Patent No 3,556,932 and No 3,556,933 issued to Williams et al., Both of which are incorporated herein by the disclosure in its entirety. 这一类型的树脂是由Bayer Corporation以PAREZ 63INC商品名销售。 This type of resin is made to PAREZ 63INC Bayer Corporation under the trade name sales. 不同摩尔比的丙烯酰胺/-DADMAC/乙二醛可用于生产交联树脂,它可用作湿强度剂。 Different mole ratios of acrylamide / -DADMAC / glyoxal can be used to produce cross-linking resins, which are useful as wet strength agents. 此外,其它二醛能够代替乙二醛来产生热固性湿强度特性。 Furthermore, other dialdehydes can be substituted for glyoxal to produce thermosetting wet strength characteristics. 特别有用的是聚酰胺-表氯醇湿强度树脂,它的例子是由HerculesIncorporated of Wilmington, Delaware 以商品名Kymene 557LX 和Kymene 557H 和由Georgia - Pacific Resins5 Inc 以商品名Amres®销售。 Particularly useful polyamide - epichlorohydrin wet strength resins, an example of which is HerculesIncorporated of Wilmington, Delaware under the trade names Kymene 557LX and Kymene 557H and by the Georgia - Pacific Resins5 Inc sold under the trade name Amres®. 这些树脂和制造该树脂的方法已描述在美国专利No. 3,700, 623和美国专利No. 3,772,076中,每个专利以全部内容引入这里供参考。 These resins and methods of making the resins are described in U.S. Patent No. 3,700, 623 and U.S. Pat. No. 3,772,076, each is incorporated herein by reference in their entirety. 聚合物-表卤代醇树脂的广泛描述已给出在Chapter 2: Alkaline -Curing Polymeric Amine - Epichlorohydrin,由Espy 在Wet StrengthRes ins and Their Appl icat ion (L. Chan, Editor, 1994 )之中,该文献以全部内容被引入这里供参考。 Polymer - widely described epihalohydrin resins is given in Chapter 2: Alkaline -Curing Polymeric Amine - Epichlorohydrin, the Espy in Wet StrengthRes ins and Their Appl icat ion (L. Chan, Editor, 1994) into the Document is incorporated herein by reference in its entirety. 湿强度树脂的适度综合目录由Westfelt 描述在Cel lulose Chemistry and Technology, 13 卷,ρ· 813,1979,它被引入这里供参考。 Moderate comprehensive list of wet strength resins is described by Westfelt in Cel lulose Chemistry and Technology, 13 volumes, ρ · 813,1979, which is incorporated herein by reference.

合适的临时湿强度剂同样地可以包括。 Suitable temporary wet strength agents may likewise be included. 有用的临时湿强度剂的全面但穷举的清单包括脂肪族和芳族醛,其中包括乙二醛,丙二醛,丁二醛,戊二醛和双醛淀粉,以及取代的或反应的淀粉,二糖,多糖,脱乙醜壳多糖,或具有酸基和任选的氮基团的单体或聚合物的其它已反应聚合物反应产物。 But overall exhaustive list of useful temporary wet strength agents includes aliphatic and aromatic aldehydes, which include starch glyoxal, malonic dialdehyde, succinic dialdehyde, glutaraldehyde and dialdehyde starches, as well as substituted or reacted , disaccharide, polysaccharide, other polymer has been reacted off Chou chitin, or monomers or polymers having acid groups and optionally nitrogen groups of the reaction product. 适宜地与含醒■的单体或聚合物反应的代表性含氮的聚合物,包括乙烯基-酰胺,丙烯酰胺和相关含氮的聚合物。 Suitably the nitrogen-containing wake ■ Representative monomers or polymers reactive polymers include vinyl - amides, acrylamides and related nitrogen containing polymers. 这些聚合物为含有醛的反应产物赋予正电荷。 These polymers comprising the reaction product of an aldehyde impart a positive charge. 另外,其它从市场上可买到的临时湿强度剂,如由Bayer制造的PAREZ 745,与例如在美国专利No· 4, 605,702中公开的那些一起,都能够使用。 Further, other temporary wet strength agent available from the market, such as PAREZ 745, manufactured by Bayer, and for example, those with 605,702 No disclosed in U.S. Patent No.-4, can be used.

该临时湿强度树脂可以是包括用于提高纸类产品的干和湿抗拉强度的醛单元和阳离子单元的各种水溶性有机聚合物之中的任何一种。 The temporary wet strength resin may be used to improve comprise any of a variety of water-soluble organic polymer in paper products dry and wet tensile strength aldehyde units and cationic units. 此类树脂已描述在美国专利No 4,675,394; 5,240,562; 5,138,002;5,085,736; 4, 981, 557; 5,008,344; 4,603,176; 4,983,748; Such resins are described in U.S. Patent No 4,675,394; 5,240,562; 5,138,002; 5,085,736; 4, 981, 557; 5,008,344; 4,603,176 ; 4,983,748;

4,866, 151; 4, 804,769 和5,217,576 中。 4,866, 151; 4, 804,769 and 5,217,576. 可以使用由National Starchand Chemical Company of Bridgewater, NJ以商标CO-BOND® 1000和CO-BOND® 1000 Plus销售的改性淀粉。 May be used by the National Starchand Chemical Company of Bridgewater, NJ under the trademark CO-BOND® 1000 and CO-BOND® 1000 Plus sold modified starch. 在使用以前,该阳离子醛式水溶性聚合物能够通过将维持在大约240华氏度的温度和约2.7的pH下的大约5%固体的水性淤浆预热大约3. 5分钟来制备。 Before use, the cationic aldehydic water soluble polymer can be produced by maintaining the pH at a temperature of approximately 240 degrees Fahrenheit and about 2.7 to about 5% solids aqueous slurry was prepared about 3.5 minutes preheat. 最后,该淤浆能够通过添加水来骤冷和稀释,生产在低于约130华氏度下大约 Finally, the slurry can be quenched and diluted by adding water, producing about 130 degrees Fahrenheit below about

I. 0%固体的混合物。 0% solids mixture I..

也可从National Starch and Chemical Company 获得的其它临时湿强度剂是以商标CO-BOND® 1600和CO-BOND® 2300销售的。 Other temporary wet strength agents, also available from National Starch and Chemical Company sold under the trademarks CO-BOND® 1600 and CO-BOND® 2300 sold. 这些淀粉是作为胶态水分散体提供并且在使用之前不需要预热。 These starches are supplied as aqueous colloidal dispersions and do not require preheating prior to use.

能够使用临时湿强度剂如乙醛酸化聚丙烯酰胺。 Temporary wet strength agents can be used such as glyoxylated polyacrylamide. 临时湿强度剂如乙醛酸化聚丙烯酰胺树脂是通过如下生产的:让丙烯酰胺与二烯丙基二曱基氯化铵(DADMAC)反应生产出阳离子型聚丙烯酰胺共聚物,它最终与乙二醛反应生产出阳离子交联临时性或半永久性湿强度树脂,乙醛酸化聚丙烯酰胺。 Temporary wet strength agents such glyoxylated polyacrylamide resins are produced by: reacting acrylamide with diallyl ammonium chloride Yue (of DADMAC) to produce a reaction of cationic polyacrylamide copolymer which is ultimately reacted with acetyl dialdehyde reaction to produce a cationic cross-linking temporary or semipermanent wet strength resin, glyoxylated polyacrylamide. 这些材料一般描述在授权于Coscia等人的美国专利No 3,556,932和授权于Williams等人的美国专利No 3,556,933 中,其中两者都以全部内裳U入这里供公开。 These materials are generally described in U.S. Patent No. issued to Coscia et al., U.S. Patent No 3,556,932 and No 3,556,933 issued to Williams et al., Both of which are in its entirety herein by the inner U Sang disclosed. 这一类型的树脂是由Bayer Industries以PAREZ 631NC商品名销售。 This type of resin by Bayer Industries to PAREZ 631NC sold under the name. 不同摩尔比的丙烯酰胺/DADMAC/乙二醛可用于生产交联树脂,它可用作湿强度剂。 Different mole ratios of acrylamide / DADMAC / glyoxal can be used to produce cross-linking resins, which are useful as wet strength agents. 此外,其它二醛能够代替乙二醛来产生湿强度特性。 Furthermore, other dialdehydes can be substituted for glyoxal to produce wet strength characteristics.

合适干强度剂包括淀粉,瓜尔胶,聚丙烯酰胺,羧曱基纤维素等等。 Suitable dry strength agents include starch, guar gum, polyacrylamides, carboxymethyl cellulose and the like Yue. 特别有用的是羧曱基纤维素,它的例子是由HerculesIncorporated of Wilmington, Delaware 以商品名Hercules CMC 销售的。 Yue particular utility is carboxymethyl cellulose, an example of which is HerculesIncorporated of Wilmington, Delaware under the trade name Hercules CMC sold. 根据一个实施方案,该纸浆可以含有约O-约15磅/吨的干强度剂。 According to one embodiment, the pulp may contain from about O- about 15 lbs / ton of dry strength agent. 根据另一个实施方案,该纸浆可以含有约I-约5磅/吨的干强度剂。 According to another embodiment, the pulp may contain from about I- to about 5 lbs / ton of dry strength agent.

合适的解粘剂同样地是本领域中技术人员已知的。 Suitable debonders are likewise known to the skilled person in the art. 解粘剂或软化剂也可以被引入到纸浆中或在网幅形成之后喷雾在网幅上。 Debonders or softeners may also be incorporated into the pulp or sprayed after the web is formed on the web. 本发明也可以与软化剂材料一起使用,后者包括但不限于从部分地酸中和的胺衍生的酰胺基胺盐类型。 The present invention may also be used with softener materials including but not limited to amido amine salt type to and from a partially acid-derived amine. 此类材料已公开在美国专利No. 4,720,383中。 Such materials have been disclosed in US Pat. No. 4,720,383. Evans, Chemistry and Industry, 5 July 1969,pp. 893-903;·Egan, J. Am. Oil Chemist's Soc., Vol. 55 (1978),pp. 118-121;和Trivedi 等人,J. Am. Oil Cheinist's Soc.,June 1981, pp. 754-756,以它们的全部内容引入这里供参考,指明软化剂常常仅仅作为复杂混合物,而不是作为单一化合物来商购获得。 Evans, Chemistry and Industry, 5 July 1969, pp 893-903;.. · Egan, J. Am Oil Chemist's Soc, Vol 55 (1978), pp 118-121;.... And Trivedi et al., J Am. Oil Cheinist's Soc., June 1981, pp. 754-756, incorporated in their entirety by reference herein, indicate that softeners are often only as complex mixtures rather than as single compounds available commercially. 尽管下面的讨论集中于主要品种,但应该理解,实际上一般能够使用市场上可买到的混合物。 Although the following discussion focuses on the predominant species, it should be understood that in practice generally be used on commercially available mixture.

Quasoft 202-JR是合适的软化剂材料,它可以通过将油酸和二亚乙基三胺的缩合产物加以烷基化来形成。 Quasoft 202-JR is a suitable softener material, which may be prepared by alkylating a condensation product of oleic acid and diethylenetriamine to form the amine. 使用不足的烷基化剂(例如,硫酸二乙酯)和仅仅一个烷基化步骤,随后进行pH调节以使非乙基化物质质子化的合成条件将得到由阳离子乙基化和阳离子非乙基化物质组成的混合物。 Underutilized alkylating agent (e.g., diethyl sulfate) and only one alkylating step, followed by pH adjusting substance so that the non-protonated ethyl synthesis conditions resulting cationic ethylated and cationic non-B group consisting of a mixture of substances. 较少比例(例如,约10%)的所得酰胺基胺会环化得到咪唑啉化合物。 A minor proportion (e.g., about 10%) of the resulting amidoamine be cyclized to give imidazoline compounds. 因为这些材料的仅仅咪唑啉部分是季铵化合物,在组成上总体是pH-敏感的。 Since only the imidazoline portions of these materials are quaternary ammonium compounds, generally in composition pH- sensitive. 因此,在使用这一类型的化学品的本发明实施中,在流料箱中的pH应该是大约6到8,更优选6到7和最优选6.5到7。 Thus, in the embodiment of the present invention with this class of chemicals of, pH in the headbox should be approximately 6 to 8, more preferably 6-7 and most preferably from 6.5 to 7.

泰kL· AV ^in -irr — Jt 一田Jt 悉垃;bh He ^\\ -?.¾"於Jt含有约10到24个碳原子时。这些化合物的优点是对于pH相对不敏感。 Thai kL · AV ^ in -irr - Jt Jt a field noted refuse;. Bh He ^ \\ - when ?. ¾ "Jt to contain from about 10 to 24 carbon atoms advantage of these compounds is relatively insensitive to pH.

能够使用可生物降解的软化剂。 Possible to use biodegradable softeners. 代表性可生物降解的阳离子型软化剂/解粘剂已公开在美国专利No 5,312,522; 5,415,737; 5, 262,007;5,264,082;和5,223,096中,所有的这些专利以全部内容引入在这里供参考。 Representative biodegradable cationic softeners / debonders are disclosed in U.S. Patent No 5,312,522; 5,415,737; 5, 262,007; 5,264,082; and 5,223,096 , all of these patents are incorporated herein in its entirety by reference. 化合物是季铵化合物的可生物降解的二酯,季铵化的胺-酯,和用季铵氯化物和二酯双二十二烷基二曱基氯化铵官能化的可生物降解的植物油型酯,并且是代表性的可生物降解的软化剂。 Compound is a quaternary ammonium compound of the biodegradable diester quaternary ammonium amine - ester, and a quaternary ammonium chloride and diester bis Yue behenyl ammonium group functionalized biodegradable vegetable oil ester type, and are representative biodegradable softeners.

在一些实施方案中,特别优选的解粘剂组合物包括季属胺组分以及非离子表面活性剂。 In some embodiments, a particularly preferred debonder composition includes a quaternary amine component as well as a non-ionic surfactant.

该初生网幅典型地在造纸毡上脱水。 The nascent web is typically dewatered on a papermaking felt. 任何合适的毡都可以使用。 Any suitable felt may be used. 例如,毡可具有双层基础编织物,三层基础编织物,和层压基础编织物。 For example, felts can have double-layer base weaves, triple base weaves, braids, and the laminate base. 优选的毡是具有层压基础编织设计的那些。 Preferred felts are those having the laminated base weave design. 对于本发明特别有用的湿压制越是由Voith Fabric制造的Vector 3。 Vector for the present invention is particularly useful wet press more 3 manufactured by Voith Fabric. 在压制越领域中的背景技术包括美国专利No 5, 657,797; 5,368, 696; 4,973,512; Background Art In the field of compression include US Patent No 5, 657,797; 5,368, 696; 4,973,512;

5,023,132; 5,225,269; 5,182,164; 5,372,876;和5,618,612。 5,023,132; 5,225,269; 5,182,164; 5,372,876; and 5,618,612. 公开在Curran等人的美国专利No. 4,533,437中的不同压毡同样地可以使用。 Different press felt U.S. Patent No. 4,533,437 to Curran et al., Disclosed in the same manner may be used.

任何合适起皱传送带或织物都可以使用。 Any suitable creping belt or fabric may be used. 合适的起皱织物包括单层,多层,或复合的、优选开孔的结构。 Suitable creping fabrics include single layer of a multilayer structure, or a composite, preferably open. 织物可具有下列特性中的至少一种:(I)在起皱织物的与湿网幅接触的一侧(“顶”侧)上,纵向(MD)线条的数量/每英寸(目数)是10到200和横向(CD)线条的数量/每英寸(织物经纬密度)也是10到200; (2)线条直径典型地小于0.050英寸;(3)在顶侧上,在MD关节的最高点与CD关节的最高点之间的距离是约O. 001英寸到约O. 02或O. 03英寸;(4)在这两层面之间有在湿模塑步骤中通过MD或CD线条形成的关节,给予该片材以外形结构,为三维山/谷外观;(5)该织物能够以任何合适的方式取向以便实现对于产品的加工和对于产品的性能而言的预期效果;长的经线关节可以在顶侧上以增大在产品中的MD脊,或长的綷线关节可以左丁S #1上,如旲左网幅从結葙圆箇結崧fI丨挺皱织物上时希智宥烫多的CD脊影响起皱特性的话;和(6)该织物制成为显示出悦目的某些几何图案,该图案典 Fabric can have at least one of the following characteristics: (I) at one side of the web in contact with the wet web on the creping fabric ( "top" side), direction (MD) number of lines / (mesh) per inch is 10 to 200 and a number of transverse (CD) line / (thread count) is also from 10 to 200 per inch; (2) lines of a diameter typically less than 0.050 inches; (3) on the top side, at the highest point of the MD joint and the distance between the highest point of the CD is about joint O. 001 inches, or about O. 02 O. 03 inches; (4) have a joint formed by MD or CD strands in the wet molding step between the two levels , to give the sheet to shape the structure, a three dimensional hill / valley appearance; (5) the fabric can be oriented in any suitable manner to achieve a desired effect for the processed products and for the performance of the product; long joint can warp when on the top side to increase MD ridges in the product, or the long-line joints can be left 綷 butoxy S # 1, as the web from Dae left circularly ge junction node suitcase Song fI Shu Xi Zhi Yu very Crepe more CD ridges hot influence creping characteristics words; and (6) the fabric made certain geometric patterns exhibit pleasing, the typical pattern 型地在每两个到50个经纱之间重复。 Type repeat between every 2 to 50 warp yarns. 合适的商购的粗糙织物包括由Voith Fabrics制造的多种织物。 Suitable commercially available coarse fabrics include a variety of fabrics made by Voith Fabrics.

该起皱织物因此可以属于在Farrington等人的美国专利No. U.S. Pat The creping fabric may thus belong to Farrington et al., No.

5,607,551第7-8栏中描述的类型,以及描述在Trokhan的美国专利No. 4,239,065和Ayers的美国专利No. 3,974,025中的织物类型。 Of the type described 5,607,551 column 7-8, and the types of fabrics are described in U.S. Pat. No. 3,974,025 Trokhan and U.S. Pat. No. 4,239,065 to Ayers. 此类织物可具有约20到约60网眼/每英寸并且是从直径典型为约O. 008英寸到约O. 025英寸的单丝聚合物纤维形成的。 Such fabrics may have about 20 to about 60 mesh / inch and about O. 008 O. 025 inches to about polymer monofilament fibers typically formed from a diameter per inch. 经纬单丝两者可以,但不一定地具有相同的直径。 Both warp and weft monofilaments may, but need not have the same diameter.

在一些情况下该长丝经过编织和至少在Z-方向(该织物的厚度) 上互补迂回构型设计,可以获得第一组或阵列的两组长丝的共平面型顶面-平面交叉;和预定第二组或阵列的亚顶面交叉。 In some cases the filaments are so woven and Z- direction at least in the bypass configuration complementary design (the thickness of the fabric), two groups of filaments may be obtained a first grouping or array of coplanar top surface of the type - intersecting plane; and a predetermined second grouping or array of sub-top-surface crossover. 这些阵列是散布的,这样顶面-平面交叉的各个部分在织物的顶面中限定了一排的柳条吊篮状空腔,这些空腔在纵向(MD)和横向(CD)上以交错排列关系配置,和因此各空腔覆盖了至少一个亚顶面交叉。 The arrays are interspersed so that the top surface - respective portions defining a plane intersecting a row wicker basket-like cavities in the top surface of the fabric which cavities are disposed in the longitudinal direction (MD) and transverse direction (CD) are arranged in a staggered configure to each cavity, and thus covers at least one sub-top-surface crossover. 这些空腔通过包括多个顶面-平面交叉的各部分的桩状轮廓离散地在视野中包围在平面视图中。 By including a plurality of cavities top surface - a plane intersecting the pile-like profile portions of discretely perimetrically enclosed in the plan view in the field of view. 织物的环可以包括热塑性材料的热定形单丝;共平面型顶面-平面交叉的顶面可以是单平面的平整表面。 The loop of fabric may comprise heat set monofilaments of thermoplastic material; co-planar top surface - the top surface plane crossovers may be monoplanar flat surfaces. 本发明的特定实施方案包括缎纹编织物以及三个或更多个梭口的杂混纹编织物,和约10 X 10到约120X 120根长丝/每英寸(4 X 4到约47 x 47/每厘米)的网孔支数。 Particular embodiments of the invention include satin weave as well as three or more of the shed hybrid weaves was about 10 X 10 to about 120X 120 filaments / (4 X 4 to about 47 x 47 per inch / mesh number branches per centimeter).

虽然网孔支数的优选范围是约18x16到约55 X 48根长丝/每英寸(9X 8到约22 X 19/每厘米)。 Although the preferred range of the number of branches is about 18x16 mesh to about 55 X 48 filaments / (9X 8 to about 22 X 19 / per cm) per inch.

代替压印织物,干燥器织物可以用作起皱织物,如果希望这样的话。 Instead of an impression fabric, a dryer fabric may be used as the creping fabric if so desired. 合适织物已描述在授权于Lee的美国专利No 5,449,026 (编织式样)和5,690, 149 (堆叠MD扁纱式样)以及授权于Smith的美国专利No.4,490,925 (螺旋形式样)。 Suitable fabrics are described in U.S. Patent No. issued to Lee No 5,449,026 (woven style) and 5,690, 149 (the stacked flat MD yarns Shape), and U.S. Patent No.4,490,925, issued to Smith (the spiral form-like).

在杨克圆筒上使用的起皱粘合剂优选能够在中等水分下与该网幅配合以便促进从起皱织物上转移到该杨克圆筒上并且当它在圆筒上被干燥(优选用高容量干燥罩)到95%或更高的稠度时牢固地将该网幅固定到杨克圆筒上。 For use in the creping adhesive on the Yankee cylinder is preferably capable of cooperating with the web at intermediate moisture to facilitate transfer from the creping fabric to the Yankee cylinder as it is dried and cylindrical (preferably with a high-capacity drying cover) of 95% or more to a consistency of the web is firmly secured to the Yankee cylinder. 该粘合剂对于在高生产率下的稳定系统操作是关键的并且是一种吸湿性、可再润湿的、基本上非交联的粘合剂。 To stabilize the binder system is operated at high productivity is critical and is a hygroscopic, re-wettable, substantially non-crosslinking adhesive. 优选枯合剂的例子是电括在Soerens等人的美国专利No. 4,528,316中描述的一般类型的聚(乙烯醇)。 Examples of preferred dry mixture is electrically general type poly (vinyl alcohol) described in 4,528,316 is enclosed in Soerens et al., U.S. Pat. No.. 其它合适粘合剂已公开在2002年4月12 日提交的标题为“Improved Creping Adhesive Modifier andProcess for Producing Paper Products”的悬而未决的美国临时专利申请序列号No. 60/372, 255 (代理人案卷No. 2394)。 Other suitable adhesives title has been publicly filed in 2002. April 12 is "Improved Creping Adhesive Modifier andProcess for Producing Paper Products" in the pending US Provisional Patent Application Serial No. No. 60/372, 255 (Attorney Docket No . 2394). '316专利和'255申请的公开内容被引入这里供参考。 '316 patent and the disclosure of the' 255 application is incorporated herein by reference. 合适的粘合剂任选在其中提供改性剂等等。 Suitable binders which optionally modified to provide and the like. 在很多情况下优选在粘合剂中少量地或根本不使用交联剂;使得该树脂在使用中基本上是不可交联的。 In many cases the binder is preferably in a small amount or not at crosslinking agent; such that, in use, the resin is substantially non-crosslinked.

本发明参考附图,尤其图I和2来评价。 The present invention with reference to the accompanying drawings, in particular FIGS. I and 2 was evaluated. 图I显示了沿着织物起绉的片材10的MD方向的横截面(120X),示出了纤维富集的、伞形的区域12。 FIG I shows a cross section along MD direction of the sheet of fabric crepe of 10 (120X), illustrating a fiber-enriched region 12 of the umbrella. 可以看出该网幅具有与纵向之间横向的微型褶皱,即脊或折皱在CD上延伸(进入照片中)。 It can be seen that the web has microfolds between vertical and horizontal, i.e., ridges or creases extend in the CD (into the photograph). 将会认识到,纤维富集区域I2的纤维具有在CD上偏向的取向,尤其在区域12的右侧,其中该网幅接触起·皱织物的关节。 It will be appreciated, I2 of the fiber enriched regions have fiber orientation biased in the CD, especially at the right side of region 12, where the web contacts the fabric wrinkle-play joint. 该喷流/成型丝网速度δ (喷流速度-丝网速度)对于拉伸比率有重要影响,这可从图2中看出;该影响明显不同于在普通湿压产品中见到的影响。 Effect This effect is significantly different from ordinary products seen in wet pressing; have important implications for the draw ratio, which can be seen in Figure 2 - The jet / forming wire velocity [delta] (wire velocity jet speed) .

图2是MD/ CD拉伸比率(断裂强度)-对-在流料箱喷流速度与成型丝网速度(fpm)之间的差异的曲线图。 FIG 2 is a MD / CD tensile ratio (strength at break) - A - a graph showing the difference between the flow velocity and forming wire speed (fpm) at the headbox jet. 上面的U形曲线代表普通的湿压制的吸收性片材。 The above U-shaped curve represents conventional wet pressed absorbent sheet. 下面的、较宽的弯曲代表了本发明的织物起绉的产品。 The following wider curved represent a fabric-creped product of the invention. 从图2中容易地认识到,根据本发明在喷流/丝网速度δ的宽范围中实现了低于1.5左右的MD/CD拉伸比率,该范围比所示CWP曲线的范围大了两倍以上。 Readily appreciated from FIG. 2 that, according to the present invention in jet / wire velocity δ achieve a wide range of below about 1.5 MD / CD tensile ratio, the range of the two large ratio range shown by curve CWP more times. 因此,流料箱喷流/成型丝网速度的控制可用来实现希望的片材性能。 Thus, the control headbox jet / forming wire velocity may be used to achieve the desired properties of the sheet.

从图2中还看出,在正方形以下的MD/CD比率(即低于I)是困难的;如果不是不可能用常规处理获得的话。 Also seen in FIG. 2, MD / CD ratios below square (i.e., less than I) is difficult; if not impossible to obtain with conventional processing words. 此外,正方形或以下片材是由本发明形成的,没有大量的纤维聚集物或“絮凝物”,这对于具有低MD/CD拉伸比率的CWP产品来说不是这种情况。 Furthermore, square or below sheets are formed by the present invention, without a lot of fiber aggregates or "flocs", which for the CWP products with low MD / CD tensile ratio is not the case. 这一差异部分地可能归因于为了在CWP产品获得低拉伸比率所需要的较低速度δ并且部分地归因于以下事实:当根据本发明该网幅从转移面上起绉时,纤维再分配在起皱织物上。 This difference may be attributed in part to a lower speed in order to obtain a low draw ratio required in CWP products δ and partly due to the fact that: in accordance with the present invention, when the web is creped from the transfer surface, the fibers redistributed on the creping fabric.

在许多产品中,横向性能比MD性能更重要,特别在CD湿强度是关键的商品手巾中。 In many products, the lateral performance is more important than the MD performance, especially in the CD wet strength is a key commodity in the towel. 产品报废的主要来源是“选出(tabbing)”或撕去手巾的仅仅一片,而不是预定片材。 The main source of product obsolescence is "selected (tabbing)" torn towel or only one, rather than a predetermined sheet. 根据本发明,通过流料箱对成型丝网速度δ的控制以及织物起皱,CD相对拉伸率可以有选择地提高。 According to the present invention, the speed of the forming wire and δ controlled by fabric creping the headbox, CD relative stretch ratio can be selectively improved.

图3是织物起绉网幅的织物侧的显微照片(10X);在图2中再次看出,片材10具有由较低基重连接区域14连接的多个非常显著的高基重、纤维富集的区域12,后者具有在横向(CD)上偏向取向的纤维,该片材具有在伞形的或纤维富集的区域之间的方向上偏向的纤维取向。 FIG 3 is a photomicrograph (10X) of the fabric side of a fabric creped web; seen again in FIG 2, sheet 10 has a plurality of very significant high basis weight linking regions of lower basis weight 14 is connected, fiber-enriched region 12, which has a fiber orientation biased in the cross direction (CD), the sheet having fibers oriented in a direction between fiber enriched regions of mushroom or biased.

在图I中也看出了取向偏向,尤其对于当在区域12的中心制备试样时已经裁切下该伞形的、纤维富集的区域12的CD偏向纤维的情况。 I also seen in FIG orientation bias, especially for the preparation of the sample when the central region 12 has been cut at the umbrella, CD fiber-enriched region 12 where fiber deflection. 在区域12的左侧,在该连接区域中可以看出,纤维沿着在纤维富集区域之间的纵向上更多地偏向。 In the left region 12 can be seen in the connection area, more fibers along the longitudinal direction between the deflecting fiber-enriched regions. 这些结构特征在图3中在较低放大倍数下也容易观察到,其中在区域14中的纤维偏向在伞形的区域之间延伸。 These structural features in FIG. 3 can be easily observed at low magnification, where fiber bias in regions 14 extends between the umbrella region.

图4是适合于实施本发明的具有普通的双丝网成形段17,运转毡19,瓦式加压区16,起皱织物18和杨克式干燥器20的造纸机15的示意图。 FIG 4 is adapted to have a conventional twin-wire forming section 17 of the present embodiment of the invention, the operation of the mat 19, the pressing region 16 of the shoe type, creping fabric 18 and a Yankee dryer 15 of papermaking machine 20 is a schematic view. 成形段12包括一对成形用织物22、24,后者由多个辊26,28,30, 32, 34,36和成形辊38所支持。 Shaped section 12 comprises one pair of forming fabrics 22 and 24, the latter, 32, 34, 36 and shaping roller 38 are supported by a plurality of rollers 26, 28. 流料箱40将造纸供料以喷流形式提供给在成形辊38和辊26的辊隙和织物之间的辊隙42。 The papermaking headbox 40 jet in the form of feed supplied to the nip between the forming roller 38 and the nip roll 26 and the fabric 42. 相对于成形用织物的喷流速度的控制是控制拉伸比率的重要方面,这可由本领域中的技术人员认识到。 Relative to the control jet speed of the forming fabrics is an important aspect of controlling the stretching ratio, which by one skilled in the art will recognize. 供料形成初生网幅44,后者借助于真空,例如通过真空箱46,在织物上脱水。 Forming a nascent web supply 44, the latter by means of a vacuum, for example 46, by vacuum dewatering box on the fabric.

该初生网幅前进到被多个辊50, 52, 54, 55支持的造纸毡48并且该技与瓦式压4昆56接触。 The nascent web is advanced to 50, 52, 54, 55 support the papermaking felt in contact with more than 48 and rollers 56 of the shoe press technology 4 Queensland. 当被转移到该越上时该网幅具有低稍度。 When this is transferred to the web having the slightly lower level. 转移可以由真空来协助;例如辊50可以是真空辊(如果希望的话)或现有技术中已知的拾取器或真空瓦。 Transfer may be assisted by vacuum; for example, roll 50 may be a vacuum roll (if desired), or known in the prior art pickup or vacuum shoe. 当该网幅到达该瓦式压辊时,该网幅在进入到在瓦式压辊56和转移辊60之间的辊隙58中时具有10-25%,优选20-25 %左右的稠度。 When the web reaches the shoe press roll, the web having a 10-25% to entering the nip 58 between shoe press roll 56 and transfer roll 60, preferably about 20-25% consistency . 转移辊60可以是加热辊,如果希望的话。 Transfer roll 60 may be a heating roller, if desired. 代替瓦式压辊,辊56能够是普通的吸入压力辊。 Instead of a shoe press roll, roll 56 can be a conventional suction pressure roll. 如果使用瓦式压辊的话则令人希望的和优选的是,辊54是在毡进入到瓦式压辊辊隙中之前有效从毡上除去水的真空辊,因为来自供料中的水将在瓦式压辊辊隙中被加压进入到该毡中。 If a shoe press roll if it is desirable and preferred that roll 54 is entered into the felt vacuum roll effective to remove water from the mat before the shoe press roll nip, because the water in the feed from in the shoe press roll nip it is pressed into the mat. 在任何情况下,在换向过程中在M处使用真空辊或STR典型地是确保网幅保持与该毡接触所希望的,本领域中技术人员将可以从图中看出。 Using a vacuum roll or STR at M typically commutation process is in any case to ensure that the web remains in contact with the mat desired, the skilled artisan will be seen from FIG.

网幅44借助加压瓦62被湿压到在辊隙58中的毡上。 44 by pressing the web is wet-pressed tile 62 to the nip 58 of the felt. 该网幅因此在58上压缩脱水,在这一工艺的这一阶段中典型地使稠度提高了15或更多点。 The dewatered web 58 thus compressed, increasing the consistency typically make 15 or more points at this stage of the process. 在58处显示的构型一般被称作瓦式压辊;对于本发明,圆筒60作为转移圆筒来运转,它在运转时将网幅44以高速(典型地1 000 fpm - 6000 fpm)输送到起皱织物上。 In the configuration shown generally at 58 is called shoe press roll; For the present invention, the cylinder 60 to operate as a transfer cylinder, it 44 during the operation of the web at high speed (typically 1 000 fpm - 6000 fpm) conveyed to the creping fabric.

圆筒60具有光滑表面64,如果需要,它可以提供粘合剂和/或防粘剂。 60 having a smooth cylindrical surface 64, if necessary, it is possible to provide an adhesive and / or release agent. 网幅44粘附于圆筒60的转移面64上,当该网幅在由箭头66指示的纵向上继续行进时该圆筒60在高的角速度下旋转。 44 adhered to the surface of the transfer cylinder 60 on the web 64, the drum 60 is rotated at a high angular velocity when the web continues to travel in the longitudinal direction indicated by arrow 66. 在该圆筒上,网幅44具有纤维的一般随机表观分布。 On the cylinder, web 44 has a generally random apparent distribution of fiber.

方向66称为该网幅的纵向(MD)和造纸机10的纵向;而横向(CD)是在该网幅的平面上垂直于MD的方向。 It referred to as longitudinal direction 66 of the web (MD) of the paper machine and the longitudinal 10; while the transverse (CD) is the direction in the plane of the web perpendicular to the MD.

网幅44典型地在10-25 %左右的稠度下进入辊隙58中并且脱水和干燥到约25到约70%的稠度,然后转移到起皱织物18上,如在该图中所示。 Web 44 typically enters at about 10-25% consistency and dewatered in the nip 58 and drying to about 25 to about 70% consistency, and then transferred to creping fabric 18 as shown in the figure.

织物18承载在多个辊68, 70, 72和压力夹辊或实心压力辊74上,使得与转移圆筒60之间形成织物起绉辊隙76,如图中所示。 A plurality of rollers 18 carried on fabric 68, 70, 72 and a pressure nip roll or solid pressure roll 74, such that the fabric creping nip 76 is formed between the transfer cylinder 60 and, as shown in FIG.

该起皱织物限定在起皱织物18适合于接触辊60的距离上的起皱辊隙;即,对于网幅施加较大压力使之紧贴在该转移圆筒上。 The creping fabric defines a creping nip over the creping fabric 18 is adapted to contact roll 60 a distance; i.e., greater pressure is applied to the web so that the close contact with the transfer cylinder. 为此目的,支承(或起皱)辊70可以具有栗软的可变形表面,它将增加起皱辊隙的长度和增加在织物和片材之间的织物起皱角度并且接触点或瓦式压辊能够用作辊70以便在高冲击织物起皱辊隙76中增加与该网幅之间的有效接触,其中网幅44转移到织物18上并在纵向上行进。 For this purpose, the support (or creping) roll 70 may have a soft deformable surface Li, will increase the length and increase the fabric creping fabric and the sheet between the creping nip angle and contact points or shingled roll pressing roller 70 can be used as a high impact so as to increase the effective contact between the web and the fabric creping nip 76 where web 44 is transferred to the fabric 18 and travels in the longitudinal direction. 通过在起绉辊隙处使用不同的设备,有可能调节织物起皱角度或与起绉辊隙之间的引出角度。 By using different equipment at the creping nip, it is possible to adjust the fabric creping angle or the angle between the lead and the creping nip. 因此,有可能通过调节这些辊隙参数来影响纤维的再分布的性质和量,可能在织物起皱辊隙76处发生的层离/解粘。 Thus, it is possible to influence the nature and amount of redistribution of fiber by adjusting these nip parameters, the layer may occur at fabric creping nip 76 from / deadhesive. 在一些实施方案中希望重新构造Z轴方向纤维间特性,而在其它情况下希望仅仅在网幅的平面上影响性能。 Want to re-configuration between the Z-axis direction of the fiber properties, in some embodiments, only affects the desired properties in the plane of the web in other cases. 该起皱辊隙参数能够在各个方向上影响纤维在网幅中的分布,其中包括在I轴方向以及该MD和CD上诱导变化。 The creping nip parameters can influence the distribution of the fiber in the web in all directions, including inducing changes in the I axis direction and the MD and CD. 在任何情况下,从转移圆筒转移到起皱织物上是高冲击性的,在于该织物比该网幅更缓慢地运行并且发生相当大的速度变化。 In any case, the transfer from the transfer cylinder to the high impact on the creping fabric, wherein the fabric is traveling slower than the web and a significant velocity change occurs. 典型地,在从转移圆筒转移到织物上的过程中,该网幅在任何地方起绉10-60%和甚至更高。 Typically, during the transfer from the transfer cylinder to the fabric, the web is creped 10-60% and even higher at any place.

起皱辊隙76 —般在约1/8"到约2",典型地1/2"到2"的任何地方的织物起皱辊隙距离上延伸。 Creping nip 76-- like fabric creping nip extends over a distance "to 2" is anywhere from about 1/8 "to about 2", typically ½. 对于32根CD线条/每英寸的起皱织物,网幅44因此将在辊隙中任何地方遇到约4到64根纬线长丝。 For CD 32 lines / creping fabric per inch, web 44 thus will encounter about 4 to 64 weft filaments in the nip anywhere.

在辊隙76中的轧点压力,即,在支承辊70和转移辊60之间的荷载适宜是2G - 100,优选40 - 70磅/每线性英寸(PLI)。 The nip pressure in nip 76, i.e., the load between the support roller 70 and transfer roll 60 is suitably 2G - 100, preferably 40--70 lbs / per linear inch (PLI).

在织物起皱后,该网幅继续沿着MD 66前进,在这里它被湿压到在转移辊隙82中的杨克圆筒80上。 After fabric creping, the web continues to advance along MD 66, where it is wet-pressed on the transfer roller 82 nip Yankee cylinder 80. 在辊隙82处的转移可以在一般约25-约70%的网幅稠度下进行。 At the transfer nip 82 can be performed typically at about 25 to about 70% of the web consistency. 在这些稠度下,难以将该网幅足够稳固地粘附于圆筒80的表面84上以便从织物上彻底地除去该网幅。 Under these consistency, the web is difficult to sufficiently firmly adhered to the upper surface 84 of the cylinder 80 to remove the web from the fabric thoroughly. 典型地,如上所述的聚(乙烯醇)/聚酰胺粘合剂组合物在86处施涂,根据需要来定。 Typically, as described above, poly (vinyl alcohol) / polyamide adhesive composition is applied at 86 as needed to set.

如果希望,可以在67处釆用真空箱以便提高厚度。 If desired, you can preclude the use of a vacuum oven at 67 to increase the thickness. 典型地,使用约5英寸水银柱至约3 O英寸水银柱之间的真空。 Typically, about 5 inches of mercury vacuum to between approximately 3 O inches of mercury.

该网幅在属于加热式圆筒的杨克圆筒80上并利用在杨克罩88中的高喷流速度冲击空气流来干燥。 80 belongs to the heated web in the Yankee cylinder and the cylindrical utilized in the Yankee hood 88 in a high velocity jet stream impingement air drying. 随着该圆筒旋转,网幅44通过起皱刮刀89从圆筒上起绉并缠绕在卷收辊90上。 With the rotation of the cylinder, and creping the web 4489 is wound on the take-up roller 90 from the cylinder by creping doctor. 从杨克式干燥器上将纸起皱可以通过使用波形的起皱刮刀来进行,如在美国专利No.5,690,788中公开的一种,该专利的公开内容被引入供参考。 May be performed from the Yankee dryer creping on paper by using a creping blade waveforms, a method as disclosed in U.S. Patent No.5,690,788, the disclosure of which is incorporated by reference. 波形的起绉刮刀的使用已经表明赋予几个优点,当用于薄织物产品的生产中时。 Use waveform creping blade has been shown to impart several advantages when used in production of tissue products. 通常,使用波形刮刀起绉的薄织物产品具有更高的厚度(ca I iper),增大的CD拉伸率,和更高的空隙体积,与使用普通的起绉刮刀生产的可比的薄织物产品相比。 Typically, the waveform of the sheer fabric creping blade products with higher thickness (ca I iper), increased CD stretch, and a higher void volume, comparable with the sheer fabric using conventional creping blade production compared products. 受到波形刮刀的使用之影响的所有这些变化倾向于与该薄织物产品的改进的柔软度触觉有关。 All of these changes affected by the use of the waveform of the blade tends to be related to the improved softness of tissue products haptic.

任选提供具有辊85(a), 85(b)的压延站85,以便压延片材,如果需要的话。 Optionally providing a roller 85 (a), 85 (b) rolling station 85, in order to calender the sheet, if desired.

当使用湿起绐方法时,代替杨克干燥器,能够使用冲击空气千燥器,穿透空气干燥器,或多个圆筒干燥器。 When using the wet method from Dai, instead of a Yankee dryer, the impact can be used dry in the air, a through-air dryer, or a plurality of dryers. 冲击空气干燥器公开在下面专利和申请中,它们的公开内容被引入这里供参考: Impingement air dryers are disclosed in the following patents and applications, the disclosures of which are incorporated herein by reference:

I Ivespaaet 等人的美国专利No. 5,865,955。 I Ivespaaet et al., US Patent No. 5,865,955. Ahonen等人的美国专利No. 5,968,590。 Ahonen et al., US Patent No. 5,968,590.

Ahonen等人的美国专利No. 6,001,421。 Ahonen et al., US Patent No. 6,001,421.

Sundqvist 等人的美国专利No. 6,119,362。 Sundqvist et al., US Patent No. 6,119,362.

美国专利申请No· 09/733, 172,标题“Wet Crepe, Impingement-Air Dry Process for Making Absorbent Sheet”,现在与美国专利No. 6,432,267。 US Patent Application No · 09/733, 172, titled "Wet Crepe, Impingement-Air Dry Process for Making Absorbent Sheet", now US Patent No. 6,432,267.

穿透干燥设备是现有技术中众所周知的和已描述在Cole等人的美国专利No. 3,432,936中,它的公开内容被引入这里供参考,与公开了圆筒干燥系统的美国专利No. 5,851,353 —样。 Throughdrying the prior art devices are well known and have been described in Cole et al., U.S. Pat. No. 3,432,936, the disclosure of which is incorporated herein by reference, discloses a cylindrical drying system and U.S. Pat. No. 5,851,353 - kind.

代表性实施例 Representative Example

通过使用图4的一般类型的装置,以各种重量,起皱比率等等制备吸收性片材。 By means of the general type used in FIG. 4, at various weight ratios and the like creped absorbent sheet was prepared. 这一材料在低的干拉伸比率下显示出高CD拉伸率,特别在图5-9中可以看出。 This material exhibited high CD stretch at low dry tensile ratios, it can be seen particularly in FIG. 5-9. 从前面的讨论和下面的实施例可以认识到,纤维富集区域和连接区域的相对基重,伞形化程度,纤维取向和网状结构的几何结构通过材料和织物的适当选择,以及控制织物起绉比率,辊隙参数和喷流/丝网速度δ来控制。 Can be appreciated from the foregoing discussion and the following examples, the fiber enriched regions and the relative geometry of the connection area basis weight umbrella degree of fiber orientation and web structure by appropriate selection of materials and fabrics, and a control fabric crepe ratio, nip parameters and jet / wire velocity δ controlled.

代表性产品的数据对于基片给出在表I中和对于转化片材给出在表2中。 Data representative products is given in Table I and are given to the conversion table in the sheet 2 to the substrate.

与下面的表和实施例有关,下列缩写有时出现: With the following table and the embodiment, the following abbreviations sometimes appear:

BRT -浴用薄织物 BRT - bath sheer fabric

CD, MD-没有进一步说明,指拉伸强度 CD, MD- Without further description, refers to the tensile strength

CD%, MD% -在指定方向上的断裂拉伸率 CD%, MD% - elongation at break in the designated direction

CMC -羧曱基纤维素 CMC - carboxymethyl cellulose Yue

CWP -普通的湿压(辊) CWP - conventional wet pressing (roller)

FC -织物起绉或织物起绉比率GM, GMT -几何平均值,典型地拉伸· Mod -模量 FC - Fabric crepe or fabric crepe ratio GM, GMT - geometric mean tensile typically · Mod - Modulus

比率(Ratio)-干拉伸比率,MD/CD SPR -实心压力辊,在图4中见到的辊74 STR -吸取转向辊,在图4中见到的辊54 T -吨 Ratio (Ratio) - dry tensile ratio, MD / CD SPR - solid pressure roller, seen in FIG. 4 the roller 74 STR - turning suction roll, seen in FIG. 4 the roll 54 T - t

TAD -穿透空气干燥的 TAD - through-air drying

'819 -指在USP 6,827, 819的压花图案 '819-- refers to USP 6,827, 819 embossing pattern

表2 -代表性实施例195-272 -成品数据(续) Table 2 - Representative Example 195-272-- finished data (continued)

薄织物产品 Tissue products

用这里所述的高含固量织物起绉工艺制造的薄织物产品(非永久湿强度等级,其中柔软度是关键参数)能够使用许多与用于制造手巾产品(永久湿强度等级,其中吸收性是重要的,在使用中的强度是关键的,和柔软度不如在薄织物等级中那么重要)时的相同工艺参数。 Tissue products (non-permanent wet strength grades where softness is a key parameter) used herein is a high solids fabric creping can be used for producing many of the products for the manufacture of towels (permanent wet strength grades, wherein the absorbent it is important, strength in use is the same as the process parameters are not as important as the sheer fabric grade) is critical, and softness. 在任一种类中,能够制造I-层和2-层产品。 In either category, the layer can be produced I- and 2-ply products.

纤维:使用高用量的硬木纤维最佳地生产软薄织物产品。 Fiber: the use of high amounts of hardwood fibers optimally produce soft tissue products. 这些纤维没有较长的、较强的软木纤维那样粗糙。 These fibers are not long, strong softwood fibers as rough. 此外,这些较细、较短的纤维益示出高得多的支数(counts) /每克的纤维。 Further, these finer, shorter fibers shows a much higher gain number (Counts) yarns / fibers per gram. 在负像侧,这些硬木纸浆一般含有更细物,它是用于制造纸浆的木结构所引起。 In the negative image side, these hardwood pulps generally contain more fines, which is used in the manufacture of wood pulp structure caused. 除去这些精细物能够增加在最终纸片材中存在的实际纤维的数目。 These were removed possible to increase the actual number of fine fibers present in the final paper sheets. 同时,除去这些微细物会减少在干燥过程中的粘结潜力,使得用化学品或在造纸机的干燥端用刮刀起皱来容易地使该片材解粘。 At the same time, removing these fines reduces the bonding potential during the drying process, so that the chemical or dry end of a paper machine creping with a doctor blade to make the sheet readily deadhesive. 从高纤维支数/每克纸浆获得的关键益处是片材不透明度或缺乏透明度。 The key benefit derived from high fiber count / gram of pulp is sheet opacity or lack of transparency. 因为甚至在片材被触碰之前在视觉上判断薄织物片性能的一大部分,所以,这一光学性能是质量感知的重要贡献者。 Since even before the sheet is touched by a majority judgment of the sheer fabric sheets in the visual performance, so that the optical properties are important contributors to the perceived quality. 软木纤维通常需要提供网眼状结构,硬木纤维能够在该结构上排列来优化柔软度和光学性质。 Softwood fibers are generally desirable to provide a network structure, hardwood fibers can be arranged to optimize softness and optical properties on the structure. 但甚至对于软木而言,纤维粗糙度和纤维根数/每克是重要的性能。 But even for softwood, the number of the fiber roughness and fiber / per gram are important properties. 长的、薄的、柔性、软木纤维状北方软木比长的、粗糙的,厚的、硬质南方软木有更多根的纤维/每克。 Long, thin, flexible, softwood long fiber northern softwood ratio, coarse, thick, more rigid root southern softwood fibers / g. 纤维选择的净结果是,对于这一技术,与全部其它技术一样,北方软木和低微细物,低粗糙度硬木象桉树木材一样可以制造出在给定的拉伸下比北方硬木更软而且比南方硬木还更加软的片材。 The net result of fiber selection is that, for this technology, and all of the other technologies, northern softwood, and low fines, low roughness as eucalypt hardwood timber as can be produced at a given draw ratio northern hardwoods and softer than Southern hardwood also more flexible sheet.

化学品:薄织物片材一般使用各种化学品来帮助满足关于特性和柔软度的消费者需求。 Chemicals: thin fabric sheet generally used various chemicals to help meet consumer demands on the properties and softness. 一般,更优选将干强度化学品施加于纸浆掺混物的长纤维部分上,而不太优选使用匀浆机来扩展拉伸。 In general, the more preferred dry strength chemical applied to the long fiber portion of the pulp blend, preferably using a homogenizer and less stretched to expand. 勾浆精练会产生微细物和倾向于形成更多的更高粘结强度的粘结键,因为匀浆精炼使纤维更柔性,这会提高在干燥过程中纤维-纤维接触的潜力。 Hook pulp refining will produce more fines and tend to form higher bond strength adhesive bonds, since the fibers more flexible homogenate refined, which increases during the drying process the fiber - fiber contact potential. 另数目。 Another number. 此类片材然后终结变得内在地更具柔性,甚至在织物起绉方法的织物起皱步骤之前。 Such sheet is then terminated becomes inherently more flexible even before the fabric creping step of the fabric crepe process. 将解粘化学品施加于硬木部分上是令人希望的,因此这些硬木纤维具有较低的彼此粘结的倾向,但保存了粘结于软木纤维的网络上的能力,该能力主要是纸的工作拉伸强度的关键所在。 The viscous solution of the chemical is applied to the hardwood portion is desirable, these hardwood fibers have a lower tendency to bond to each other, but the ability to save on the network of softwood fibers bonded to the ability of the paper mainly the key work tensile strength lies. 在一些情况下,临时湿强度剂也可以与软木和硬木纤维一起添加来改进湿强度特性的感知,但不牺牲冲洗能力或腐化池安全性。 In some cases, a temporary wet strength agents may be added together with the softwood and hardwood fibers to improve the perception of wet strength characteristics, without sacrificing flush ability or septic tank security.

织物起绉:这一工艺步骤主要带来薄织物片材的独特和令人希望的性能。 Fabric Creping: This process step mainly bring a unique and desirable properties of the thin fabric sheet. 增加织物起皱会提高厚度和减少拉伸。 Increase the fabric creping increases the reduction in thickness and stretched. 此外,织物起皱改变了在基础片材中测量的拉伸比率,让片材具有相等的MD/CD拉伸或让片材具有比CD拉伸更低的MD拉伸。 Further, fabric creping changes the tensile ratios measured in the base sheet, so the sheet of equal MD / CD tensile allows or sheet having lower CD tensile ratio of MD stretching. 然而,希望薄织物片材在两个方向上显示出相等的拉伸,因为大多数的产品是以与片材方向无关的方式使用。 However, it is desirable the thin fabric sheet exhibits equal stretched in two directions, because most of the product is independent of the orientation of the sheets manner. 例如,在卫生纸中的“捅透(poke through) w受到这一拉伸比率连同以下事实的影响:织物起皱比普通的技术产生更高的CD拉伸率,尤其在较低的MD/CD比率下。对于其它技术,相同的拉伸材料难以穿过高速加工设备,归因于在边缘上引发的撕裂倾向于在整个片材上传播,从而引起破裂的倾向。与普通的产品相反,利用本发明方法制造的相同拉伸比率的织物起绉片材保留了沿着MD方向撕裂的倾向,因此显示出了自体愈合的倾向,使得首先边缘撕裂并开始传播到该片材中。这一出乎意外的和独特的性能连同在这一步骤中伸入到该片材中的该拉伸耐拔拉的性能一起允许在I或I以下的拉伸比率下有高效、高速的操作。此外,这些相同的性能导致了在最终产品的穿孔上净撕裂。薄织物产品的织物起绉水平是约30%到约60%。尽管更高水平的是可能的,但是这一范围考虑到 For example, in the toilet paper "poke through (poke through) w affected by the stretch ratio along with the fact that: the fabric creping produce higher CD stretch ratio of ordinary skill, especially at lower MD / CD the ratio for other technologies, the same tensile material is difficult to pass through a high-speed processing equipment due to tear initiation at the edge tends to spread over the entire sheet, it tends to cause cracking. in contrast with the conventional product, fabric crepe sheet is produced by the method according to the present invention retains the same draw ratio tends to tear along the MD direction, thus showing a tendency to self-healing such that the first edge tear and begins to propagate in the sheet. this unexpected and unique property along with the sheet projects into this step in the tensile pull resistance properties together with a high pull-in allows stretch ratio of I or less, high-speed operation Furthermore, these same properties result in a net perforated tear on the final product the fabric creping level of tissue products is from about 30% to about 60%, although higher levels are possible, but this range considered to 种各样的质量水平,但在造纸机的生产能力上没有变化。 Every kind of quality level, but no change in the production capacity of the paper machine.

织物:织物的设计是该工艺的突出方面。 Fabric: the fabric design is to highlight aspects of the process. 但是织物的参数超过了编织到其中的凹陷(depressions)的尺寸和深度。 But the parameters of the knitted fabric over the recess into which (depressions) in size and depth. 它们的形状和布置也是非常重要的。 Their shapes and arrangements are also very important. 构成机织织物的线条的直径同样是重要的。 The diameter of the lines constituting the woven fabric are also important. 例如, E.g,

处在凹陷(该片材起绉进入该凹陷中)的引导边缘上的关节(knuckle)的尺十决宕了织物刼绉比皋釦I會的表凝,左这些表教下左片材中出现孔穴。 In the joint (Knuckle) on the recess (creped sheet enters the recess) of the leading edge must dang ten feet my Bookbag Help fabric crepe ratio of Table I will pour Gao buckle, the sheet left the left teachings tables hole appears. 该挑战,尤其对于薄织物等级,是使这些凹陷变得尽可能深且同时有尽可能最细的线条直径,因此允许更大的织物起绉比率,从而在给定的比率下导致更大的片材厚度。 The challenge, especially for thin web grades, is to make these depressions become deep as possible, and while the diameter of the thinnest line, thus allowing greater fabric crepe ratios resulting in greater at a given ratio thickness of the sheet. 显然,织物设计需要根据所生产的片材的重量来变化。 Clearly, fabric designs need to be varied according to the weight of the sheet produced. 例如,具有高的强度,厚度和柔软度的才艮高质量的、优质的2-层手纸能够在44M-设计织物上制造。 For example, high strength, thickness and quality was Gen softness, high-quality 2-ply toilet paper can be manufactured in the 44M- fabric design. 该4牝也能够用于制造具有非常好的结果的更重(至多2x)重量单层片材。 The female can be 4 for producing heavier (up to 2x) weight single ply sheet with very good results. 织物设计的另一个性能是在片材中形成图案。 Another performance of the fabric design is a pattern formed in the sheet. 一些织物设计能够赋予非常值得注意的图案而其它织物设计会产生似乎消失在背景中的图案。 Some fabric design can give very noteworthy that the pattern will produce other fabric designs seem to fade into the background pattern. 常常消费者想看到在倒置时进入到片材中的压花图案并且在这种情况下较少片材图案也许是更令人希望的。 Consumers often want to see when entering the inversion embossing pattern in the sheet and in this case less of the sheet pattern might be more desirable. 一些等级可以在没有压花的情况下制造出来和因此由织物起皱步骤赋予的更明显图案将帮助为片材赋予“优质”外观。 Some grades may be manufactured and thus more pronounced pattern imparted by the fabric creping step would help impart "quality" appearance of a sheet without embossing conditions. 消费者倾向于将素片材看作低质量、低价的产品。 Consumers tend to be seen as plain sheet of low quality, low-priced products.

起绉:因为在本发明的典型织物起绉工艺中该片材被转移到杨克式干燥器中以便进行最后干燥,该片材能够(和通常)从这一干燥器上起绉进一步增强该柔软度。 Creping: Since is transferred to a Yankee dryer in a typical fabric crepe process of the present invention, the sheet for the final drying, the sheet can be (and usually) From this dryer to further enhance the creping softness. 薄织物产品从可以为片材增加厚度和柔软度的这一起皱步骤大大地受益。 Tissue products benefit greatly from this creping step can increase the thickness and softness of the sheet. 在该片材的杨克(干燥器)侧上尤其倾向于形成光滑表面。 In particular, it tends to form a smooth surface on the Yankee the sheet (a dryer) side. 此外,因为卷筒起绉和织物起绉的比率能够与生产速率(卷筒速度)无关地进行变化,在改变最终片材的性能上有相当大的宽容度。 Further, since the ratio of reel crepe and fabric crepe can be varied with the production rate (reel speed) regardless of the considerable latitude in changing the properties of the final sheet. 提高该卷筒起绉/织物起绉比率会减少纸的双侧边度,因为较低织物起绉将需要一定水平的MD拉伸。 The increase reel crepe / fabric crepe ratio will reduce the bilateral sides of the paper, because of the lower fabric crepe will require a level of MD stretch. 在纸中有不突出的“眉毛”结构,它会影响两侧边度。 There are no outstanding "eyebrow" structure in the paper, it will affect the degree of edge sides. 此外,提高该比率也会提高该不透明度和在相同的所测量的厚度(caliper)下的厚度(thickness)的感知。 In addition, this ratio will increase the opacity and improve the perceived thickness (Thickness) is measured at the same thickness (Caliper) of. 常常希望维持合理的比率(比如说25-50 °/。卷筒起绉/织物起绉)以增强与片材的外观质量有关的这些“无形”性能的消费者感知度。 It is often desirable to maintain a reasonable ratio (say 25-50 ° /. Reel crepe / fabric crepe) to enhance consumer perceptions of the quality associated with the appearance of the sheet of these "invisible" properties.

压延:无论如何,更多的压延是更好的,只要在片材中维持合理水平的厚度以供后续转换(convert)用。 Rolling: in any case, more calendering is better, as long as a reasonable level of thickness is maintained in the sheet for subsequent conversion (Convert) used. 太少的厚度则需要太多的压花,这会降低总质量。 Too little too much thickness you need embossing, which will reduce the total mass. 因此,生产优质卫生纸的一个策略是使用最粗糙的织物但在片材中不形成孔穴,降低织物起皱水平,这样更多的MD拉伸車将夹自泉簡起绉部分和仍然左压延之前获得足够的厚度,从而在压延步驟中除去这一厚度的至少约20-40%。 Accordingly, a strategy is the production of high quality tissue using the coarsest fabric without forming voids in the sheet, reducing the fabric creping level so that more of the MD stretch from the vehicle before the clip profile crepe portion and still springs left rolling thickness sufficient to remove at least about 20-40% of the thickness in the rolling step. 这些压延水平倾向于减少片材的侧边度。 These calendering levels tend to reduce the sidedness of sheets. 另外地,优质片材能够用更细的织物但以更低的卷筒起绉/织物起绉比率来制备。 Additionally, high-quality sheet can be produced but with a lower reel crepe / fabric crepe ratio with finer fabrics. 因为更细织物生产出更多、更小的圆穹,更多织物起皱能够用于获得希望的厚度但不过度增大侧边度。 Since the finer fabric produces more, smaller dome, more fabric creping can be used to obtain the desired thickness, but unduly increasing sidedness. 在大多数情况下,获得了减少的侧边度。 In most cases, access to the side of the reduction. 在这一情况下卷筒起绉/织物起绉比率能够低到约5-10%。 In this case the reel crepe / fabric crepe ratio can be as low as about 5-10%. 压延因此能够最大化来实现希望的柔软度。 It is possible to achieve rolling maximize softness desired. 当因为织物起皱显著地降低拉伸强度而使用较强纤维时和当织物的设计在片材中产生低于平均两侧边度时,这一方法是令人希望的。 When since the fabric creping dramatically reduced tensile strength when using stronger fibers and fabrics produced when designing lower than the average of both sides of the sheet, this method is desirable.

手巾产品 Towel Products

手巾产品按照与薄织物片材类似的方式在各种工艺参数上表现。 Towel products according to the thin fabric sheet in a similar manner as the performance of various process parameters. 然而,在很多情况下手巾产品利用相同的参数但在相反的方向上有在相同方向上的一些。 However, in many cases towel products utilize the same parameters but with some in the same direction in the opposite direction. 例如,两种产品形成希望的厚度,因为厚度直接与在薄织物产品中的柔软度和在手巾产品中的吸收性相关。 For example, the desired thickness of the two products formed, since the absorbent and the towel product is directly related to the softness of tissue products in thickness. 在下面参数中,仅仅讨论与薄织物情形之间的差异。 In the following parameters, only discuss the differences between the sheer fabric case.

纤维:手巾在使用时需要功能性强度,这通常指当润湿时的情形。 Fibers: Towels require functional strength in use, which generally refers to the case when when wetted. 为了达到这些所需的拉伸,长的软木纤维是以与薄织物产品的比率大致相反的比率来使用。 To achieve these desired stretching ratio of long softwood fibers and tissue products is substantially opposite to the ratio used. 70到90%软木纤维的比率是常见的。 Ratio of 70 to 90% softwood fibers are common. 匀浆法能够使用但倾向于闭合该片材,以致于后续的织物起皱不能“打开”该结构。 Homogenization can be used but tend to close the sheet, so that the subsequent fabric creping can not "open" the structure. 这导致更缓慢的吸收速率和更低的容量。 This results in a slower rate of absorption and lower capacity. 与薄织物产品不同,微细物(fines)能够在手巾片材中使用,只要不使用太多的硬木就行,因为这再次倾向于闭合该片材并且还会减少它的拉伸能力。 Sheer fabric with different products, fines (fines) can be used in towel sheets, they do not use too much hardwood on the line, as this again would tend to close the sheet and reduce its ability to stretch.

化学品:令人吃惊地,解粘剂也能够用于手巾! Chemicals: Surprisingly, debonders can also be used towel! 但它们的使用必须审慎地进行。 But they should only be used judiciously. 同样地,纤维的匀浆精炼需要调节到较低水平,以保持该片材畅通和快的吸收。 Likewise, refining of the fibers needs homogenate was adjusted to a lower level, in order to maintain the sheet smooth and fast absorption. 因此通常添加化学品强度剂。 Therefore chemical strength agents are typically added. 当然必须添加湿强度化学品以防止在使用中的扯碎。 Of course wet strength chemicals must be added to prevent shredding in use. 但为了达到高的湿拉伸水平,湿拉伸与干拉伸的比率必须最大化。 But in order to achieve a high level of wet tensile, wet tensile to dry tensile ratio must be maximized. 如果干拉伸水平变得太高,则手巾片材变得太“纸状”并且由消费者判断为低质量。 If the dry tensile levels become too high, the towel sheet becomes too "paper-like" is determined by the consumer and low mass. 因此,添加湿强度剂和CMC来将CD湿/干比率从典型的25%提高到希望的30-35%能够添加解粘剂,后者优先地减少CD干拉伸,与湿值相比。 Therefore, wet strength agents and CMC was added to the CD wet / dry ratio increased from the typical 25% to 30-35% can be added the desired solution viscosity, which reduces the CD dry tensile priority, compared with the wet value. 解粘剂和软化剂也能够被喷雾到片材上,在此之后干燥进一步改进触觉性能。 Debonders and softeners can also be sprayed onto the sheet, after drying to further improve tactile properties.

织物起绉:增加该织物起皱会直接提高该吸收性。 Creping fabric: the fabric creping increases the absorbency directly improves. 因此希望将织物起皱最大化。 It is therefore desirable to maximize wrinkle fabric. 然而,FC也减少拉伸,因此有一个必须维持的平衡。 However, FC also reduces stretching, so there is a balance that must be maintained. 手巾片材有时不能显示出高水平的MD拉伸,因为所使用的分配器(dispensers)的类型。 Towel sheets sometimes can not exhibit high levels of MD stretch because of the type of dispenser (Dispensers) to be used. 在这些情况下FC必须也加以限制。 In these cases FC must also be limited. 因此,手巾需要平均比薄织物片材更粗糙的织物设计。 Therefore, towels require a coarser average than the thin fabric sheet fabric design. 此外,因为这些湿片材典型地显示出相当大的湿强度,它们更难以在与薄织物片材相同的稠度下模塑。 Further, since these wet sheets typically exhibit considerable wet strength, they are more difficult to mold at the thin fabric sheet with the same consistency.

织物:更粗糙的织物对于手巾一般是令人希望的。 Fabric: The fabric for coarser towel is generally desirable. 双层手巾片材典型地以良好结果在44G或36G织物或更粗糙织物上制得,虽然良好结果能够用更细织物获得,尤其如果该织物起绉比率得到提高。 Double towel sheets are typically made with good results on a 44G or 36G fabric or coarser fabric, although good results can be obtained with finer fabrics, particularly if the fabric crepe ratio is increased. 单层片材常常需要甚至更粗糙的织物连同其它技术一起来制备可接受的片材。 Single sheet often require even coarser fabric along with other technology to take a sheet produced acceptable. 在片材中更长的纤维和更高的强度允许这些织物的使用和在片材中出现孔穴之前有更高的FC比率。 Longer fibers in the sheet and allow the use of higher strength of these fabrics and higher FC ratios before voids appear in the sheet.

起绉:在手巾片材上进行极少的起皱。 Creping: with very little creping on a towel sheet. 起皱确实提高厚度,但按照与CWP片材类似的方式来进行。 Indeed creping increase the thickness, but in accordance with the CWP sheet is performed in a similar manner. 这一厚度在润湿时会消失并且该片材膨胀。 This thickness disappears when wetted and the sheet expands. 当润湿时,从织物起皱产生的厚度在功能上象干海绵。 When wet, resulting from the thickness of the fabric creping functionally like a dry sponge. 该片材在Z方向上膨胀并能够在MD与CD方向上收缩。 The sheet expands in the Z-direction and can shrink in the MD and CD direction. 这一行为大大地增加手巾的可觉察的吸收性并使它们看起来类似TAD手巾。 This behavior greatly increases the perceived absorbent towel and make them look like TAD towel. 在很多情况下,Taurus技术的锯齿状刮刀与织物起绉工艺的结合使用可以改进手巾片材的吸收性,厚度,和柔软度。 In many cases, using the serrated blade Taurus technology in conjunction with fabric crepe process can be improved absorbency, thickness, and softness of the towel sheet. 该CD刚硬性下降,同时CD拉伸率得到提高。 The CD just hard fall, while the CD elongation is improved. 在刮刀上产生的厚度越高允许更多的压延和因此带来更多的片材光滑度。 The thickness produced at the blade allows more calendering higher and thus bring more sheet smoothness. 在一些情况下希望在不起绉的情况下从杨克式干燥器上拔起该片材。 In some cases we want to pull up the sheet from the Yankee dryer without creping. 这也许是盥洗室手巾的情况,其中柔软度与在卷筒上获得更多纸片材相比是次要的。 This may be the case bathroom towels, which compared with more softness in the sheet of paper on the roll is secondary. 参见Druecke等人的美国专利No.6,187,137以及与本申请同日提交的悬而未决的美国专利申请No和 ,代理案卷No 12389P1和12611P1。 See Druecke et al. US Patent No.6,187,137 and a pending US patent application filed on the same day No and Attorney Docket No 12389P1 and 12611P1.

压延:由于两个关键理由,手巾片材从压延受益。 Rolling: Since the two key reasons, towel sheet benefited from rolling. 首先,压延使该片材变光滑和改进该触觉感。 First, calendering smoothes the sheet and improving the tactile feeling. 其次,它“压破”由织物为该片材的触感赋予更多Z方向深度所产生的圆穹并且常常在给定的厚度下改进吸收性能。 Secondly, it is "crushed" by the touch fabric is imparted the sheet dome generated more Z-direction depth and often improve the absorbent properties at a given thickness.

薄织物的数据概述 Data Overview muslins

几个造纸机加工工具和压花图案用来生产I层零售和商品的草纸。 Several paper machining tool for the production of toilet paper and the embossed pattern of retail goods and I layer. 工艺参数包括:织物起绉%,卷筒起绉%,软化剂添加量,软化剂类型,软化剂定位,纤维类型,HW/SW比率,压延荷载,橡胶和钢压延,起皱织物式样,MD/CD比率和杨克式涂覆化学品。 Process parameters including: fabric crepe% reel crepe%, the addition amount of the softening agent, softener type, softener location, fiber type, HW / SW ratio, calendering load, rubber and steel calendering, creping fabric style, MD / CD ratio and Yankee coating chemicals. 压花图案包括:'819,M3,双心,蝶形和旋流形,有微型(Micro)和马赛克(Mosaic)彩虹的蝶形和旋流形。 Embossing pattern comprising: '819, M3, double heart, and butterfly-shaped swirl, are miniature (Micro) and mosaic (Mosaic) and rainbow swirl butterfly shape. 最佳的商品I层草纸(BRT)原型含有40%北方HW和60%再生纤维,在20磅基重和450 GMT,实现17. 5感觉柔软度。 Best Commercial I toilet paper layer (BRT) prototype containing 40% Northern HW and 60% recycled fiber, at 20 lbs basis weight and 450 GMT, achieved 17.5 sensory softness. 最佳的零售I层BRT原型含有80%南方HW和20%南方SW,在20. 5磅基重和450 GMT,实现16. 9感觉柔软度。 I best retail layer BRT prototype containing 80% Southern HW and 20% Southern SW, at 20.5 lbs basis weight and 450 GMT, achieved 16.9 sensory softness.

该目标包括确定:使用南方硬木(HW)和软木(SW)生产具有1Ί. O的感觉柔软度的I层零售薄织物的工艺要求;使用HW和再生纤维生产具有17. O的感觉柔软度的I层商品薄织物的工艺要求以及汁维和其它工艺参数对于感觉柔软度和物理性能的影响。 The target includes determining: using Southern hardwood (HW) and softwood (SW) producing a thin layer 1Ί process of claim I retail fabric feeling of softness O; using HW and recycled fiber has a sensory softness 17. A production of O Effect of process requirements and process parameters and other juice-dimensional product sheer fabric layer I for sensory softness and physical properties.

17. O的该商品I层BRT感觉柔软度是在20磅基重下实现的。 The product I layer 17. O BRT sensory softness is achieved at a basis weight of 20 lbs. 消费者试验将决定了减少的基重对于产品的消费者接受程度的影响。 Consumer testing will determine the reduction in basis weight for consumer product acceptance Degree.

通过使用南方HW和SW以21. 4磅/ 3000平方英尺制造I层零售薄织物,在450 GMT下实现的最高感觉柔软度是16. 9。 By using Southern HW and SW to 21.4 lbs / 3000 ft2 manufacturing retail sheer fabric layer I, the highest sensory softness achieved at 450 GMT was 16.9.

通过使用南方HW和SW以20. 5磅/ 3000平方英尺制造I层零售薄织物,在450 GMT下实现的最高感觉柔软度是16. 9。 By using Southern HW and SW to 20.5 lbs / 3000 ft2 manufacturing retail sheer fabric layer I, the highest sensory softness achieved at 450 GMT was 16.9.

通过使用40% HW和60%再生纤维(FRF)以20. 2磅/ 3000平方英尺制造I层商品薄织物,在450 GMT下实现的最高感觉柔软度是17.5。 By using 40% HW and 60% recycled fiber (FRF) to 20.2 lbs / 3000 ft2 manufactured goods sheer fabric layer I, the highest sensory softness achieved at 450 GMT was 17.5. 对于这里报道的全部工作,平均感觉柔软度是16. 9。 For all the work reported here, the feeling of softness average is 16.9. 通过使用100% FRF以22. I磅/ 3000平方英尺制造I层商品薄织物PS,在45O GMT下实现的最高感觉柔软度是16. 4。 By using 100% FRF to 22. I lb / 3000 ft2 manufactured goods sheer fabric layer PS I, the highest sensory softness achieved at 45O GMT was 16.4.

Aracruz HW Marathnn SW 以19.8絲/ 3000 羊古装尺制造I层零售薄织物,在450 GMT下实现的最高感觉柔软度是18. 3。 Aracruz HW Marathnn SW filaments at 19.8 / 3000 ft sheep costume I layer manufacturing retail tissue, the highest sensory softness achieved at 450 GMT was 18.3. 对于这里报道的全部工作,平均感觉柔软度是18. O。 For all the work reported here, the feeling of softness average is 18. O.

钢/钢压延导致在等同荷载下更高的厚度减少和更高的感觉栗软度,与橡胶/钢丝压延相比。 Steel / steel calendering result in reduced softness and a higher Li feeling equivalent loads at higher thickness, compared to the rubber / steel calendering.

增加压延荷载似乎增大了感觉柔软度,但在高于65 PLI下压延会减少柔软度,当使用原始的HW和再生纤维时。 It seems to increase the rolling load increases the sensory softness, but calendering at higher than 65 PLI may decrease softness when using the original HW and recycled fiber. 对于HW和SW,80 PLI是上限。 For HW and SW, 80 PLI is the upper limit.

在恒定的行起绉°/^下,织物起绉%的增加导致CD拉伸率的提高和CD破裂模量的下降。 Line at a constant creping ° / ^, the increase in fabric crepe percent increase and lead to a decline CD CD tensile modulus of rupture rate. 然而,在恒定的GMT下成品感觉柔软度没有受影响。 However, at a constant feeling of softness GMT finished not affected.

在恒定的行起绉%下,改变织物起绉%-对-卷筒起绉%的各自量不影响感觉柔软度。 % At constant line crepe, fabric crepe% change - of - the amount of each reel crepe percent does not affect sensory softness.

在这一研究中使用的起皱织物的类型影响到基片厚度,但不显著地影响感觉柔软度。 Creping fabric types used in this study affected substrate thickness, but not significantly affect sensory softness. 粗网眼织物产生更高基片厚度和允许更高压延水平。 The crude yield higher mesh fabric substrate thickness and allow higher calendering levels.

具有I. 0MD/CD拉伸比率(MD拉伸等于CD拉伸)的I-层BRT在感觉柔软度上等于具有1.8的传统乂0/00比率(更高的MD拉伸)的I-层BRT0在这种情况下,柔软度取决于GMT,但不是CD强度或CD模量。 Traditional qe 0/00 ratio (higher MD stretching) of the I- layer having BRT I. 0MD / CD tensile ratio (MD tensile equal to CD tensile) on sensory softness equal layer having 1.8 I- BRT0 in this case, depending on the softness GMT, but not CD strength or CD modulus.

造纸供料效果 Paper feeding effect

在表3和4中的纤维混合物是在类似的工艺条件下进行,并生产I层BRT。 Fiber mixture is shown in Table 3 and 4 under similar conditions, producing I and layer BRT. 感觉柔软度进行测量并使用来自附件的数据中的强度-柔软度值用下式调节到450 GMT:(感觉柔软度)+ ((450-GMT) * Sensory softness was measured using the intensity data from the accessory - softness value was adjusted to 450 GMT using the formula :( sensory softness) + ((450-GMT) *

(-0. 0035))。 (-0. 0035)). 桉树和Marathon SW造纸供料导致比其它供料高得多的柔软度。 Eucalyptus and Marathon SW papermaking furnish lead to much higher than other feed softness. 该南方HW和SW供料目前用于零售2-层薄织物。 The Southern HW and SW currently used to supply retail 2- thinner fabric. 它是在PM#2上开发I-层BRT原型时目前使用的造纸供料。 It is a development layer I- BRT prototypes on PM # 2 paper feed currently used. 用Marathon SW替代南方SW稍微地改进柔软度(第一表)。 Slightly improved softness (first table) instead Southern SW with Marathon SW. 迄今,16. 9是在450 GMT下实现的最佳感觉柔软度(第二表)。 To date, 16.9 is the best sensory softness (second table) achieved at 450 GMT. 仅仅含有南方纤维的全部工作的平均值是16. 4。 The average value of all work containing only Southern fiber is 16.4. 在450 GMT下实现该17. O感觉柔软度目标代表了重要的技火桃成太宕昍沾妲杨也始t梦吐弇山妨彼嫂暑HH·.令罢变准者亦品BRT可接受的。 17. O accomplish this at 450 GMT sensory softness goals represent an important technical fire peach dip into too dang Xuan Da Yang also began t dream Yanshan harm he spit Sao summer HH ·. Zheyi make the strike becomes quasi products can BRT accepted. 然而,因为该片材用织物贴附于杨克干燥器上,在干燥器上有较少的接触面积。 However, since the fabric sheet is attached to the Yankee, there is less contact area on the dryer. 在杨克起皱过程中,与通常用毡贴附于杨克干燥器上相比,该片材表面发生更低程度光滑化。 The Yankee creping process, compared with commonly used felt adhered to the Yankee, the sheet surface smoothing occurs to a lesser extent. 这导致法兰绒状触感,与普通起皱的丝状触感不同。 This leads flannel-like feel, with ordinary wrinkle filamentous feel different. 片材的气流侧,与在普通的湿压起皱中一样,不如干燥器侧光滑。 Stream side of the sheet, as in conventional wet pressed creped, the smooth side of the dryer is better. 在I-层产品中该气流侧有助于总体柔软度,因为它不能象在2-层产品中那样隐藏到内部。 The product in the I- layer side stream contributes to the overall softness, since it can not be hidden to the inside like that in the 2-ply product. 这一结合会导致更低的感觉柔软度评级。 This combination results in lower sensory softness rating. 改进柔软度的当前途径是用较粗糙的起皱织物增长厚度,添加软化剂和用“高”荷载压延使该片材变光滑并减少两侧边度。 Improved softness of the current approach is to use relatively coarse creping fabric increase thickness, add a softening agent and a "high" load calendering to smooth the sheet and reduce the edge of both sides. 薄织物(商品)供料,用于I-层BRT,将是40%北方HW和60%再生纤维。 Sheer fabric (product) feed, I- layer for the BRT, will be 40% Northern HW and 60% recycled fiber. 在下表中,FRF是Fox River再生的湿式叠加汗维(wet-lap)0 FRF是高亮度再生纤维。 In the table below, FRF is Fox River regenerated superimposed wet sweat-dimensional (wet-lap) 0 FRF is a high brightness recycled fiber. 尽管仅仅少数的数据点,17.5感觉柔软度迄今为止是最佳的。 Although only a small number of data points, 17.5 sensory softness is by far the best. 平均值迄今是16.9。 To date the average 16.9. 这里该17. O柔软度目标是较低挑战。 17. O where the goal is to lower softness challenge. 在下面表中的全部数据是掺混式基片的。 All data in the following table are blended formula substrate. HW和SW通常在单独的制浆机中制备并且从不同的柜中运行。 HW and SW are usually prepared in separate pulpers and run from the different cabinets. 该纤维通常在风扇式泵中摻混,产生纤维的均质掺混物。 The fibers are usually blended at the fan pump, resulting in a homogeneous blend of fibers.

为了减少I层BRT的双侧边度,橡胶辊和普通的钢压延辊与普通的钢/钢压延对比。 To reduce the bilateral sides of the I layer BRT, a rubber roll and a conventional steel calender roll and a conventional steel / steel calendering contrast. 该橡胶辊放置在片材的干燥器侧。 The rubber roller is placed in the dryer side of the sheet. 下表5-7显示了使用不同硬度的橡胶辊时压延荷载对于基片厚度的影响。 The table 5-7 shows the effect of different hardness when using a rubber roller calender load to the substrate thickness. 两个橡胶專昆对于等同的压延荷载导致类似水平的厚度减少。 Kun for two special rubber equivalent calender load results in a reduction of the thickness of a similar level. 该钢/钢辊在等同荷载下导致高得多的厚度减少,从下面的图中看出。 The steel / steel rolls much higher thickness leads to a reduction in the equivalent load, seen from below in FIG. 比(标称)BO P+J季昆更硬的56P+J辊应该在等同荷载下已引起更多厚度损失。 Ratio (nominal) BO P + J quaternary Queensland harder 56P + J roll should be equal under load has caused more loss of thickness. 该(标称)80P+J辊先前已经使用和它的实际测量P+J值是7 O。 The (nominal) 80P + J roll has been used previously and its actual measured P + J value is 7 O. 它的覆盖厚度是5/ 8英寸,相比之下对于56 P+J辊是I英寸。 Its cover thickness is 5/8-inch, compared to the 56 P + J roll is I inch. 对于具有5/8-英寸覆盖厚度的70 P+J辊而言的计算辊隙宽度稍微低于具有I-英寸覆盖度的56P+J辊的值。 For a 5/8-inch thickness of the cover 70 P + J roll nip width is calculated in terms of the value is slightly lower than the 56P + J roll having I- inch coverage. 这解释了对于“80 P+J”辊见到的更高的厚度减少。 This explains the higher thickness of the roller to see "80 P + J" reduction.

* 23磅(lb)基片 * 23 lbs (LB) of the substrate

* 23磅(Ib)基片 * 23 lbs (Ib) substrate

随着压延载荷增长,对于全部类型的压延辊,双侧边度显著减少。 As calendering load increase, for all types of calender rolls, bilateral side was significantly reduced. 然而,用橡胶/钢辊压延的片材触感不如钢/钢压延基片那样柔软。 However, rubber / steel sheet roll calender inferior feel as soft steel / steel calendering the substrate. 图9表明在给定的GMT下,感觉柔软度比钢/钢压延片材高了约O. 4柔软几个基片通过使用该钢/钢辊在不同的荷载下压延。 Figure 9 shows that at a given GMT, sensory softness about O. 4 high flexibility of several substrates by using the steel calendering roll steel / under different load than steel / steel calendered sheet. 压延站位于造纸机上的卷筒之前。 Calendering station is located before the reel on the paper machine. 这些基片然后在转化成I-层BRT过程中被压花。 The substrate is then converted to the embossed layer BRT I- process. 下面的图显示,压延机荷载对于含有优质纤维(即桉树HW和MarathonSW)的片材的感觉柔软度有较小影响。 The following figure shows a calender with a smaller impact load sensory softness quality fiber-containing sheet (i.e., eucalyptus HW and MarathonSW) a. 对于含有北方HW和Fox River次级纤维的片材,柔软度在65 PLI压延机荷栽下得到改进,但是当压延机荷载增加到80 PLI时会减少。 For sheets containing Northern HW and Fox River Secondary Fiber, softness at 65 PLI calender charge planted improved, but when the load increased to 80 PLI calender will be reduced. 随着压延机荷载增加,该南方片材稍微地增加柔软度。 As the load increases calender, the sheet is slightly increased South softness. 可变的工艺条件和不同的压花图案使得难以定量化对于柔软度的压延效应。 Variable process conditions and different emboss patterns make it difficult to quantify the calendering effect for softness. 然而,似乎表明一些压延会改进柔软度,但过度压延会降低柔软度。 However, it seems to indicate that some of the improvements will be rolled softness, but will reduce the excessive rolling softness.

喷软化剂对比 Spray softener comparison

Hercules D1152, TQ456和TQ236作为被加到片材的气流侧上的喷雾软化剂来进行对比。 Hercules D1152, TQ456 and TQ236 as a spray softener is applied on the air side of the sheet to compare. 下面表显示该结果。 The following table shows the results. 当对于GMT进行调节时,在软化剂之间没有柔软度差异。 When adjusted for GMT, there is no difference in softness between the softeners. Hercules M-5118也作为喷雾软化剂来试验。 Hercules M-5118 can also be tested as a spray softener. 这一材料是聚丙二醇醚,是现有技术中已知的。 This material is a polypropylene glycol ether, are known in the prior art. 然而,当它以2磅/T的量被喷雾到片材的气流侧上时,尽管该片材处于4-英尺干燥器(转移圆筒,图3)上,该片材无法粘附于该起皱织物上。 However, when its amount of 2 lbs / T is sprayed onto the air side of the sheet, the sheet is 4- feet although a dryer (transfer cylinder, Figure 3), the sheet can not be adhered to the creping the fabric. 当喷雾位于片材的干燥器侧上时,在吸取转向辊(STR)之前的毡上或在实心压力辊(SPR)之前的起皱织物上,该片材分别都不粘附于4-英尺干燥器或杨克式干燥器上。 When sprayed on the dryer side of the sheet is located in the suction felt turning roll (STR) or prior to the creping fabric before the solid pressure roll (the SPR), the sheet is not adhered to each foot 4- dryer or Yankee dryer on. 另一种软化剂不导致粘合性问题和不会负面影响在2镑/吨下的杨克涂覆。 Another softener does not cause adhesion problems and does not adversely affect the Yankee coating at 2 pounds / ton. 然而,在4镑/吨和更高的涂覆量下,全部导致不稳定的杨克涂层。 However, at 4 pounds / ton and higher coating amount, all result in an unstable Yankee coatings. 结果给出在表8中。 The results are given in Table 8.

__ 表8 _ Table 8 _ __

湿端软化剂对比 Compare wet end softener

软化剂以高达16磅/吨的水平在稠厚备料(通常HW)中的湿端添加是可能的,但不产生杨克涂层不稳定性。 Wet end softener is possible to add up to 16 lb / ton level in thick stock (usually HW) is, without producing a Yankee coating instability. 下面的表显示了HerculesTQ236, TQ456, D1152和Clearwater CS359的对比。 The following table shows a comparison HerculesTQ236, TQ456, D1152, and the Clearwater CS359. 全部是在类似工艺条件下进行。 All the process is carried out in similar conditions. 该钢/钢压延机辊的荷载是50 PLI。 The load of steel / steel calender rolls was 50 PLI. '819压花图案用于转换(convert)。 '819 for converting the embossing pattern (convert). 在相同的添加率和GMT下,全部软化剂表现相同。 At the same addition rate and GMT, the same as all of the softener performance. 对于增加均浆精炼以补偿软化剂(它用作解粘剂)的增加,没有发现柔软度改进。 Homogenizer for increasing refinements to compensate the softening agent (which is used as debonder) is increased, no softness improvement. 在这种情况下仅仅该南方SW被均浆精炼和软化剂仅仅添加到南方服中。 In this case only the Southern SW was refined and softener homogenate was added only to the south-garment. 这是“少而强的键”理论的试验。 This is a test of the theory of "small but strong bond." 为了强度仅仅均浆精炼该SW,更大量的软化剂可以添加到HW中在理论上改进柔软度。 In order to refine the pulp strength are only SW, a larger amount of softening agents may be added to the HW theoretically improve softness. 仅仅均浆精炼该SW (片材的20%)没有导致更软的片材。 The homogenate was refined only SW (20% of the sheet) did not result in a softer sheet. 虽然没有得到感觉试验小组的证实,D1152选择为软化剂的选择,主要基于柔软度的主观评价。 Although not confirmed sensory testing team, D1152 options for choosing softener, primarily based on subjective evaluation of softness. 结果概括在表9中。 The results are summarized in Table 9.

压花图案影响 Embossed pattern influence

不同的压花图案用来确定具体的图案是否与织物起绉基片相亙作闱炎产生窯类歛唐.讨本的撕钇类明女容粉的压龙阁蚩;故讲I片柔软度,除了强度下降外。 Different embossing patterns used to determine whether the specific pattern of the substrate with the fabric creping interactive class kiln for generating convergence Quarters inflammation present discussion Tang tear yttrium Bright woman receiving pressure Dragon Court Chi powder;. I say so flexible sheet degree, in addition to the outer strength decreases. 在大多数情况下工艺条件是类似的,但对于下面的对比不是恒定的。 In most cases process conditions were similar but not constant for the following comparison. 然而,它们是足够相似的以便确定是否发生了较大的柔软度改进。 However, they are similar enough to determine if a greater softness improvement occurs. 下面表表明,任何试验的图案都没有导致较大的柔软度改进。 The following table shows, without any test pattern are improved results in greater softness. “双心”,“819”(美国专利No. 6,827,819)和“蝶形和旋流形”图案看来似乎达到等同的感觉柔软度。 "Double Heart", "819" (US Patent No. 6,827,819) and "Butterfly and swirl-shaped" pattern appears to achieve equivalent sensory softness. 参见下面的表10-13。 See the following table 10-13. 一般来说,“马赛克彩虹(Mosaic Iris)”图案引起了比“有微形图的蝶形和旋流形(ButterfIies and Swirls with Micro)”图案更高的感觉柔软度值。 Generally, "Rainbow mosaic (Mosaic Iris)" causes the pattern than the "micro chart butterfly-shaped swirl and (ButterfIies and Swirls with Micro)" a pattern of higher sensory softness value. 以这一有限的数据为基础,该“有微形图的蝶形和旋流形”图案不为织物起绉基片推荐。 In this limited data, based on the "micro-shaped swirl and FIG butterfly-shaped" pattern is not recommended for the fabric creped base sheet. “M3”和“马赛克彩虹”压花图案对于恒定的供料和GMT为表10中的那些给予相等的柔软度值,和应该认为相同的。 "M3" and "Mosaic Rainbow" embossing pattern for a constant feed GMT and softness values ​​to those given in Table 10 are equal, and the same should be considered.

_ 表10 -南方HW/南方SW_ _ Table 10 - South HW / South SW_

表11 - 40%北方HW/60% Fox River 再生纤维(FRF) Table 11 - 40% Northern HW / 60% Fox River recycled fiber (FRF)

表13 -桉树HW/ Marathon Sf Table 13-- Eucalyptus HW / Marathon Sf

织物起绉对卷筒起绉 Fabric crepe of reel crepe

在恒定的行起绉下,但有各种各样的织物起绉%,生产基片。 At constant line crepe, but a wide variety of fabric crepe percent of the production substrate. 通过将转移圆筒速度(也接近成形速度)除以卷筒速度来计算行起绉或总体起绉率。 By the transfer cylinder speed (also close molding speed) by reel speed calculation line crepe or overall crepe. 从这一数值中减去I。 I. subtracted from this value in 所得值乘以100并以。 The resulting value is multiplied by 100 and is. /。 /. 表达。 expression. 对于织物起绉,转移圆筒速度除以杨克千燥器速度,因为这也是起皱织物速度,然后减去I和乘以100。 For fabric crepe, transfer cylinder speed is divided by Yankee speed was dry, because this is also the creping fabric speed, and then multiplied by 100 and subtracting I. 对于卷筒起绉,该杨克速度除以该卷筒速度然后减去I和乘以100。 For reel crepe, the Yankee speed divided by reel speed multiplied by 100 and then subtract I. 一般,该转移圆筒速度和卷筒速度保持不变和杨克速度变化以产生不同的织物/卷筒起绉条件。 Generally, the transfer cylinder speed and reel speed kept constant and Yankee speed varied to create the different fabric / reel crepe conditions. 基片数据显示在最高的卷筒起绉下发生最高的MD拉伸。 Substrate showed the highest data MD stretching occurred at the highest reel crepe. 在最高的织物起绉率下发生最低的几何平均(GM)破裂模量和最高的CD拉伸率。 The lowest geometric mean (GM) break modulus and highest CD stretch occurred at the highest fabric crepe. 这些片材中任何一量保持不变,但杨克涂覆添加除外,后者对于实施例56来说有所提高。 The amount of any one of the sheet remains unchanged, but the Yankee coating added except for Example 56 which is increased. 对于物理性能,该片材在使用的最大范围的织物/卷筒起绉条件下都十分相似。 Physical properties are very similar to the sheet at the fabric / reel crepe conditions the maximum range used. 结果概括在表14中。 The results are summarized in Table 14. 对于这些试验,该转移圆筒是4-英尺直径干燥器。 For these trials, the transfer cylinder is 4-foot diameter dryer.

表14 Table 14

全部片材通过不使用压花图案或使用在美国专利No. 6,827,819中所述的图案被转换到制成的I-层BRT辊上。 All sheets or by not using the embossed pattern in the U.S. Patent No. 6,827,819 a pattern in the layer is converted to I- BRT rolls made. 在下面的表15和16中见到的物理数据非常类似于以上的基片数据。 Physical data seen in the following Tables 15 and 16 is very similar to the above substrate data. 具有全织物起绉和没有卷筒起绉(实施例57)的片材具有显著更高的CD拉伸率和较低的CD破裂模量。 Fabric crepe sheet having a full and no reel crepe (Example 57) had significantly higher CD stretch and lower CD modulus of rupture. GM模量一般是较低的。 GM modulus is generally lower. 然而,感觉柔软度数据对于任何片材都没有表明柔软度优点。 However, sensory softness data for any sheet showed no softness advantage.

表15 Table 15

起皱织物效果 Effect creping fabric

各种起皱织物设计用来生产用于转换成I-层BRT的基片。 Various creping fabric designed to produce I- layer for conversion into BRT substrate. 下表17显示了在类似工艺条件下的基片数据。 Table 17 shows the data substrate under similar process conditions. 在起绉织物类型的行中,该MD和CD长丝支数例如显示为42x31。 In the creping fabric type row, the MD and CD filament count is displayed, for example, 42x31. 首先显示MD支数。 MD displayed first count. MD或CD指在该织物的相对于片材的那一侧上的最长关节。 MD or CD refers to the longest joint to the upper side of the sheet that in the phase of the fabric. M,G和B指编织式样。 M, G, and B refer to the weaving pattern. 最高的未压延厚度是用56 X 25网眼织物实现的。 The highest uncalendered thickness is 56 X 25 mesh fabric achieved. 这允许较高水平的压延,尽管仍然在转换的产品中实现了目标辊直径和坚实度。 This allows a higher level of rolling, although still achieve the goal of roll diameter and firmness in the conversion products. 较高水平的压延应该减少双侧边度并改进柔软度。 It should reduce the high level of bilateral edge of rolling and improve softness.

该织物起绉工艺能够在比普通的湿压和TAD工艺宽得多的范围中容易地控制MD/CD拉伸比率。 The fabric creping process can be easily controlled MD / CD tensile ratios much higher than conventional wet press and TAD processes in a wide range. 已经获得了4. O到O. 4的比率,无需让该工艺受到它的限制因素影响。 It has been obtained 4. O to O. 4 ratio, without the need to make the process affected by it limiting factor. 传统上,薄织物产品要求MD拉伸(倍数)高于CD拉伸(倍数)以使成形最大化。 Traditionally, tissue products required MD stretching (times) higher than CD tensile (times) to maximize the forming. 为了最大柔软度,CD拉伸(倍数)保持尽可能低的。 For maximum flexibility, CD stretch (multiple) kept as low as possible. 这增加了消费者在使用时的破坏风险。 This increases the risk of damage to the consumer at the time of use. 如果CD拉伸增加和MD拉伸减少,GMT保持恒定。 If the MD tensile and CD tensile increased reduction, GMT maintained constant. 因此,在相同的总强度下将有更低破坏机会。 Thus, at the same total intensity will have a lower chance damage. 下面表显示了两个独立试验的I-层成品BRT数据,其中MD/CD拉伸比率是变化。 The following table shows the I- layer finished BRT data for two separate trials in which MD / CD tensile ratio is varied. 在下面表18中比较实施例90, 89,107和108。 In the following Table 18 in Comparative Example 90, 89,107 and 108. 降低该MD/CD比率同时提高CD和GM模量。 Reducing the MD / CD ratio while increasing CD and GM modulus. 然而,当被认为是GMT的原因时,感觉柔软度没有显著地受影响。 However, when it is thought to be responsible GMT, the sensory softness was not significantly affected. CD强度增加约100克/3英寸。 CD strength increased by about 100 g / 3 inches. 这将大大地减少在使用中破坏的风险。 This will greatly reduce the risk of damage during use. 由于低强度,基片的能伸长的属性将防止破裂。 Because of the properties of low strength extendible, will prevent cracking of the substrate. 对于高速工业操作,穿孔叶片型可能需要加以改变来适应低强度和高的拉伸率。 For high-speed commercial operation, perforation blade type may need to be changed to accommodate low strength and high elongation.

南方HW水平对于感觉柔软度的影响示于下面的表19中。 South HW level of impact on sensory softness shown in Table 19 below. 在mHW下没有观察到柔软度改进。 No softness improvement was observed at mHW. 在两种情况下,柔软度都远远低于17. O的目标值。 In both cases, the softness 17. O are much lower than the target value. 使用80 P+J橡胶/钢压延辊。 Using 80 P + J rubber / steel calendering rolls.

__ 表19 _ Table 19 _ __

工艺参数加以控制以确定哪一个使用南方HW和SW导致17.0的成品威赍柔歛唐,如昊右的诖.一+此类的对比异左为了控制强膚佶用高织物起绉率但没有喷雾软化剂的基片与为了控制强度使用喷雾软化剂但有低织物起绉率的基片之间进行。 Controlled process parameters to determine which results in the use of Southern HW and SW to turn to 17.0 K finished soft convergence Tang, Hao right as deceive. + Such a contrast control of a strong heterologous skin left for high fabric crepe ratio Ji without and using spray softener to control strength between the substrate but for low fabric crepe ratio of softener sprayed substrate. 表20表明,当对于GMT调节时,柔软度是等同的。 Table 20 shows that, when adjusted for GMT, equivalent softness. 在两种情况下,柔软度都远远低于17. O的目标值。 In both cases, the softness 17. O are much lower than the target value. 使用80 P+J橡胶/钢压延辊。 Using 80 P + J rubber / steel calendering rolls.

__ 表20 _ Table 20 _ __

模塑箱真空 Vacuum molding box

模塑箱位于起皱织物之上,在起绉辊和实心压力辊之间。 Molding box is located above the creping fabric, between the crepe roll and the solid pressure roll. 在这一点上片材固含量通常是在38和44%之间。 At this point the upper sheet solids content is typically between 38 and 44%. 真空对于片材厚度的影响能够在该表中看出。 Vacuum to the sheet thickness of the impact can be seen in the table. 对于在模塑箱中21英寸水银柱真空,观察到"8个片材厚度”的几乎8密耳的增加。 For 21 inches of mercury vacuum at the molding box, the observed increase of almost 8 mils "8 sheets Thickness". 这是约14%提高。 This is about 14%. 两个辊用钢/钢辊在50 PLI下进行压延。 Two roll with steel / steel rolls rolling at 50 PLI. 厚度形成的量取决于织物编织(fabric weave)的粗輕度和所施加的真空量。 The thickness depends on the amount of the formed knitted fabric (fabric weave) and the slight amount of coarse vacuum applied. 其它片材性能没有显著地受影响。 Other properties of the sheets was not significantly affected. 使用模塑箱进行干燥。 Using a molding box and dried. 在杨克罩温度中没有显著的变化,在杨克式处理之后片材水分从2. 66提高到3. 65%。 No significant change in Yankee hood temperature, sheet moisture increased from 2.66 to 3.65% after the Yankee process. 真空拖动该片材深入到该起皱织物,因此,与杨克(Yankee)之间有较少的接触,需要更多干燥来维持片材水分。 Drag vacuum deep into the sheet creping fabric, therefore, between the Yankee (the Yankee) and there is less contact drying requires more water to maintain the sheet. 参见表21。 See Table 21. 在这种情况下该杨克罩温度没有调节。 In this case the Yankee hood temperature is not adjusted.

__表21 _ Table 21 _ __

在织物起绉下,片材水分对于基片性能的影响, In fabric creping, the sheet moisture to affect the performance of the substrate,

;士松ifeil τ 甘矣紗 X ίιΐ -ίϊτ -r -±^ λΛ AL· 八rb AA ϋ· 士士八能够变化。 ; Shisong ifeil τ willing to carry yarn X ίιΐ -ίϊτ -r - ± ^ λΛ AL · eight rb AA ϋ · Shishi eight can change. 在装有120mm瓦式压机和22磅片材的所使用的造纸机上,固含量从约34变化到46%。 On a paper machine equipped with a 120mm shoe-type presses and 22 lbs sheets used, the solids content varies from about 34 to 46%. 对于低含固量条件,STR真空减少,瓦式压机荷载降低,和4-英尺干燥器蒸汽减少。 For the low solids condition, STR vacuum reduced, the shoe type press load is reduced, and 4-foot dryer steam reduced. 为了在卷筒上将这一片材干燥到约2%水分,杨克蒸汽和罩温度不得不提高。 To these a sheet on the drum and dried to about 2% moisture, Yankee steam and hood temperature had increased. 低含固量基片在GMT上比高含固量片材低了约270克/3英寸。 Low solid content of the substrate sheet is high solids low of about 270 g / 3 in GMT. 参见下表。 See the table below. 这主要归因于在较低瓦式压机荷载下发生的较低压缩率。 This is mainly due to the low compression ratio occurs at lower shingled press loads. 该织物起皱步骤将该纤维在较大程度上重排,但显然它不能完全地解开压制操作所引起的全部压缩。 The fabric creping step rearranged the fibers to a large extent, but apparently it is not completely solved all the compression caused by the pressing operation. 其它物理性能,包括SAT容量,不是显著不同的,当考虑强度差异时。 Other physical properties, including SAT capacity, were not significantly different when considering the differences in intensity. 这一实验应该通过仅仅使用真空和蒸汽改变片材固含量在恒定的压制下重复。 This experiment should be changed using only vacuum and steam solids content of the sheet is repeated at constant pressing by. 然而,以这些实验为基础,在这里研究的范围中片材固含量对于基片性能的影响无法预期是显著的。 However, the basis of these experiments, in the range studied here solids content of the sheet to the substrate can not be expected to affect performance is significant. 干燥影响是显著的,因此值得扩大所试验的固含量范围。 Drying effects are significant, and therefore deserves to expand the range of solids content tested. 结果总结在下表22中。 The results are summarized in Table 22.

表22 Table 22

尽管本发明已经与几个实施例相关地进行了描述,在本发明的精神和范围内的对于这些实施例的改进对于本领域中技术人员来说是显而易见的。 Has been described in relation While the invention has several embodiments and embodiments within the spirit and scope of the invention for improving these embodiments of ordinary skill in the art will be apparent. 考虑到上述讨论,现有技术中的相关知识和以上关于背景和详细说明所讨论的包括悬而未决的专利申请在内的参考文献,它们的公开内容全部被引入这里供参考,因此进一步描述认为是不必要的。 View of the foregoing discussion, relevant knowledge in the prior art and described in detail above with respect to the background and references, including pending patent applications, including in question, the disclosures of which are all incorporated herein by reference, so further description is not considered necessary.

Claims (21)

  1. 1.纤维素纤维的吸收性片材,该纤维素纤维包括在网状结构中排列的硬木纤维和软木纤维的混合物,该网状结构具有:⑴多个的较高局部基重的伞形纤维富集区域,该区域由(H)多个的较低局部基重连接区域互联,该连接区域的纤维取向沿着在互联的伞形区域之间的方向发生偏向,其中该网状结构的相对基重,伞形化程度,硬木与软木比率,纤维长度分布,纤维取向,和几何结构加以控制,使得片材所显示出的%横向拉伸率是片材的干拉伸比率的至少2. 75倍。 1. The absorbent sheet of cellulosic fibers, cellulose fibers comprise a mixture of hardwood and softwood fibers arranged in a mesh structure, the mesh structure comprising: a plurality of relatively high local basis weight ⑴ mushroom fibers enriched regions, a region (H) a plurality of lower local basis weight linking regions interconnected, the connection region is biased fiber orientation occurs along the direction between pileated regions interconnected, wherein the mesh structure is relatively basis weight, degree of mushroom, hardwood to softwood ratio, fiber length distribution, fiber orientation to be controlled, and geometry, so that the sheet exhibited% transverse stretch ratio of at least 2 dry tensile ratio of the sheet. 75 times.
  2. 2.根据权利要求I的吸收性片材,它显示出至少5g/g的空隙体积,至少5的%横向拉伸率和低于I. 75的纵向/横向拉伸比率。 I according to claim absorbent sheet which exhibits at least 5g / g void volume of at least 5% less than the transverse and longitudinal stretching ratio / transverse stretching ratio of I. 75.
  3. 3.根据权利要求I的吸收性片材,它显示出至少5 g/g的空隙体积,至少5的。 I according to claim absorbent sheet which exhibits at least 5 g / g void volume of at least 5. /»横向拉伸率和低于I. 5的纵向/横向拉伸比率。 / »I. transverse stretching ratio and below the longitudinal / transverse stretch ratio of 5.
  4. 4.根据权利要求I的吸收性片材,它显示出至少5 g/g的空隙体积,至少10的%横向拉伸率和低于2. 5的纵向/横向拉伸比率。 I according to claim absorbent sheet which exhibits at least 5 g / g void volume of at least 10% and a transverse stretching ratio is less than the longitudinal / transverse stretch ratio of 2.5.
  5. 5.根据权利要求I的吸收性片材,它显示出至少5 g/g的空隙体积,至少15的%横向拉伸率和低于3. 5的纵向/横向拉伸比率。 I according to claim absorbent sheet which exhibits at least 5 g / g void volume of at least 15% less than the transverse and longitudinal stretching ratio / transverse stretching ratio of 3.5.
  6. 6.根据权利要求I的吸收性片材,它显示出至少5 g/g的吸收性,至少20的9/。 I according to claim absorbent sheet which exhibits at least 5 g / g absorbency, of at least 920 /. 横向拉伸率和低于5的纵向/横向拉伸比率。 And transverse stretching ratio is less than the longitudinal / transverse stretch ratio of 5.
  7. 7.根据权利要求I的吸收性片材,显示出相当于片材的干拉伸比率的至少3倍的。 I according to claim absorbent sheet exhibits at least 3 times the sheet corresponds to a dry draw ratio. /。 /. 横向拉伸率。 Transverse stretching ratio.
  8. 8.根据权利要求I的吸收性片材,显示出相当于片材的千拉伸比率的至少3. 25倍的%横向拉伸率。 I according to claim absorbent sheet exhibits transverse stretch ratio of at least 3.25% is equivalent to one thousand times the stretch ratio of the sheet.
  9. 9.根据权利要求I的吸收性片材,显示出相当于片材的千拉伸比率的至少3. 5倍的%横向拉伸率。 I according to claim absorbent sheet exhibits% transverse stretch ratio of at least 3.5 times the draw ratio corresponds to one thousand of the sheet.
  10. 10.根据权利要求I的吸收性片材,其中该片材显示出至少4的%横向拉伸率和O. 4到4的干拉伸比率。 I claim 10. The absorbent sheet, wherein the sheet exhibits% lateral elongation and O. dry tensile ratio of at least 4 of the 4-4.
  11. 11.根据权利要求10的吸收性片材,其中该片材显示出至少5的%横向拉伸率。 11. The absorbent sheet according to claim 10, wherein the sheet exhibits at least 5% of the transverse stretch rate.
  12. 12.根据权利要求10的吸收性片材,其中该片材显示出至少6的%横向拉伸率。 12. The absorbent sheet according to claim 10, wherein the sheet exhibits at least 6% of the transverse stretch rate.
  13. 13.根据权利要求10的吸收性片材,其中该片材显示出至少8的%横向拉伸率。 13. The absorbent sheet according to claim 10, wherein the sheet exhibits at least 8% of the transverse stretch rate.
  14. 14.根据权利要求10的吸收性片材,其中该片材显示出至少10的%横向拉伸率。 14. The absorbent sheet according to claim 10, wherein the sheet exhibits a transverse stretching ratio of at least 10%.
  15. 15.根据权利要求I的吸收性片材,具有至少6 g/g的空隙体积。 I claim 15. The absorbent sheet having at least 6 g / g void volume.
  16. 16.根据权利要求I的吸收性片材,具有至少7 g/g的空隙体积。 I claim 16. The absorbent sheet having at least 7 g / g void volume.
  17. 17.根据权利要求I的吸收性片材,具有至少8 g/g的空隙体积。 I claim 17. The absorbent sheet having at least 8 g / g of void volume.
  18. 18.根据权利要求I的吸收性片材,具有至少9 g/g的空隙体积。 I claim 18. The absorbent sheet having at least 9 g / g void volume.
  19. 19.根据权利要求I的吸收性片材,具有至少10 g/g的空隙体积。 I claim 19. The absorbent sheet having at least 10 g / g void volume.
  20. 20.根据权利要求I的吸收性片材,它主要由硬木纤维组成。 I claim 20. The absorbent sheet, consisting essentially of hardwood fibers.
  21. 21.根据权利要求I的吸收性片材,它主要由软木纤维组成。 I claim 21. The absorbent sheet, which is mainly composed of softwood fibers.
CN 200580011238 2004-04-14 2005-04-12 Wet-pressed tissue and towel products with elevated CD stretch and low tensile ratios made with high solids fabric crepe process CN100587158C (en)

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EP2492393B1 (en) 2016-07-06 grant
RU2365326C2 (en) 2009-08-27 grant
EP1735496A1 (en) 2006-12-27 application
CN101575823B (en) 2011-06-29 grant
CA2559526C (en) 2013-07-23 grant
DK1735496T3 (en) 2015-11-23 grant
ES2590139T3 (en) 2016-11-18 grant
CA2559526A1 (en) 2005-11-10 application
EP1735496B1 (en) 2015-10-14 grant
DK2492393T3 (en) 2016-09-12 grant
WO2005106117A1 (en) 2005-11-10 application
ES2552762T3 (en) 2015-12-02 grant
CN1942626A (en) 2007-04-04 application
RU2006140088A (en) 2008-05-20 application
EP2492393A1 (en) 2012-08-29 application
CN101575823A (en) 2009-11-11 application

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