CN1161502C - 一种纤维素无纺织物的制造方法 - Google Patents

一种纤维素无纺织物的制造方法 Download PDF

Info

Publication number
CN1161502C
CN1161502C CNB998070343A CN99807034A CN1161502C CN 1161502 C CN1161502 C CN 1161502C CN B998070343 A CNB998070343 A CN B998070343A CN 99807034 A CN99807034 A CN 99807034A CN 1161502 C CN1161502 C CN 1161502C
Authority
CN
China
Prior art keywords
cellulose
fiber
air
weight
cellulose solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB998070343A
Other languages
English (en)
Other versions
CN1304464A (zh
Inventor
Sj
S·J·劳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lion True Fiber Co ltd
Lenzing AG
Original Assignee
Acordis Fibres Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Acordis Fibres Holdings Ltd filed Critical Acordis Fibres Holdings Ltd
Publication of CN1304464A publication Critical patent/CN1304464A/zh
Application granted granted Critical
Publication of CN1161502C publication Critical patent/CN1161502C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/013—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/015—Natural yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

一种纤维素无纺织物的制造方法，它包括这样形成的纤维：将纤维素溶液经过至少一个喷丝孔挤出，并使挤出纤维受到高速气流的作用。在纤维网收集之前，纤维通过至少可使部分纤维凝固的蒸汽雾。利用这种方法，就可以获得膨松性高和密度较低的织物。

Description

一种纤维素无纺织物的制造方法
技术领域
本发明涉及由纤维素尤其由纤维素溶液制成的无纺织物的制造方法。
背景技术
通过将纤维素在氧化胺溶剂中的溶液纺丝，然后在水或氧化胺稀水溶液中沥滤，制成随后能够切成短纤维的纤维素长丝，就可以制成纤维素纤维和长丝。挤出和凝固工艺称为溶剂纺丝，这样制成的溶剂纺丝纤维素纤维统称为莱塞尔(lyocell)。
将短纤维分裂就有可能制成低于1.0分特的小分特纤维。然而，这很昂贵，而且能耗高。
本申请的国际专利申请PCT/GB97/03391揭示了制造纤维素纤维无纺织物的方法，该纤维素织物由这样形成的纤维制成：从至少一个喷丝孔挤出纤维素溶液，并使挤出物纤维受到高速气流的作用，在一个纤维随之凝固其上的表面上收集纤维。纤维在凝固前会粘结起来，形成高度粘结的致密无纺织物。
在一些应用中，例如对于过滤材料，或者对于需要具有高保水性能的材料，不要求高度粘结的高密度织物网。
发明内容
本发明提供一种制造高膨松和较低密度的纤维素无纺织物的方法。
根据本发明提供的一种制造纤维素无纺织物的方法，其中自喷丝头制成的挤出纤维受到高速气流作用，而且纤维经过一个蒸汽雾，在纤维网收集之前，该蒸汽雾至少使纤维部分凝固。
挤出纤维在气流作用下变细，而且会断裂成不定长长度。
蒸汽雾可以由任何合适的凝固剂形成。该雾优选是水雾，尽管也可以使用例如低级烷醇。方便地，可以自位于喷丝头下面的喷嘴喷出水雾。
纤维素溶液优选是纤维素在氧化胺溶剂中的溶液，一般为氧化叔N-胺，尤其为N-甲基吗啉-N-氧化物(NMMO)。纤维素溶液可以含有4-22％(重量)聚合度为200-5000、更典型400-1000的纤维素，优选10-15％(重量)。
在优选的实施方式中，纤维素溶液含有14％(重量)的纤维素，12％(重量)的水和74％(重量)的NMMO，纤维素的聚合度约为600。
收集形成的微细纤维或原纤维，然后用水或者含有最高达20％(重量)氧化胺的氧化胺稀水溶液进一步凝固(也称为“再生”)。原纤维可以直接收集在凝固浴中，或者可以收集在一个表面上，然后进一步凝固。
优选空气或干蒸汽的气流以200-500米/秒的速度吹到挤出纤维上，该气流的温度为100-155℃，对于14-15％的纤维素浓度优选约145℃。浓液的纤维素含量越低，使用的空气温度可以越低。气流速度应当至少是从喷丝头挤出的纤维的速度的50倍，优选为该速度的1000-20000倍。空气以相对于挤出纤维纵向轴优选为15-45°、更优选约为30°的斜角导向挤出纤维。气流也可以以相对于喷丝头的第二斜角进行偏向，不使气流轴和纤维轴相叉，而使气流与挤出纤维表面相切。
纤维收集表面可以是柔软的或弹性的。纤维优选收集到一个泡沫床上，泡沫床优选浸在水中或NMMO水溶液中。
本发明也提供莱塞尔无纺织物，其中纤维粘结或缠结起来，而不需要粘合剂，织物密度不大于175克/分米3，和/或断裂伸长率至少为7％。
附图说明
下面，仅利用实施例，参照附图，详细说明本发明，其中：
图1是根据本发明制造无纺织物的设备的实施方式示意图；
图2是用于图1设备中的喷丝板平面图；
图3是图2所示喷丝板的侧视图，内部通道用虚线表示；
图4是通过图2和3所示喷丝板的轴向剖面图。
具体实施方式
图1显示了带有喷丝板11的挤出机10。含有14％(重量)纤维素、12％(重量)水和74％(重量)N-甲基吗啉-N-氧化物(NMMO)的溶液喂入挤出机。纤维素的平均聚合度约为600。
纤维素溶液可以按WO 94/28217所述方法制备。挤出机内的纤维素溶液的温度保持于95-110℃间，优选105℃，并强制通过喷丝板挤出成纤维素浓液的连续长丝。
图2和3所示的喷丝板11可以直接固定到挤出机10上，或可以固定到适配器(未示出)上，再固定在挤出机10上。喷丝板11在其背面12上带有具有螺纹的中空柱螺栓13，而且喷丝板11具有终端为喷孔15的中央通道14。喷孔直径为0.2-0.3毫米，优选约0.27毫米。
纤维素溶液在压力下强制进入通道14，并通过喷孔15挤出。喷丝板11也具有许多排气通道16，优选3个，环绕中央通道14间隔排列。每个气体通道16都相对于喷孔轴倾斜，它们环绕喷孔15环状等间距排列，使每股离开各自通道16的气流都对挤出长丝具有同样的效果。
气体通道16与喷孔的纵向轴具有15-45°、更优选30°的斜角或收敛角。通道16也是斜的，使通道16的轴不会自身会聚。气体通道的直径约为2.0毫米。喷丝板的背面12内具有环形的凹槽17，它与三个通道16的末端联通。
当喷丝板固定到挤出机上时，中央通道14与纤维素溶液喂入料相通，环形通道17与供应的气体(优选压缩空气)相连。
参见图1，压缩空气自供应源(未示出)通过流量调节阀21、流量表22、加热器23和温度感应器24，喂入到喷丝板内空气通道17中。感应器24可以与空气加热器23相连，来控制空气温度。
自喷丝板11挤出的长丝在从排气通道16出来的高速气流25作用下变细，长丝受拉伸和断裂，纤维被直接吹入凝固浴27中或者优选吹到距喷丝板11约30厘米的支撑表面26上。纤维素溶液的流量优选约0.2克/分钟。在所示实施方式中，支撑表面26为可旋转鼓28外周表面，旋转鼓28以约10转/分钟(rpm)旋转，在鼓上形成无纺织物层。
挤出长丝经过水蒸汽的细雾30，水蒸汽的细雾由位于喷丝板11下面约10厘米的气体喷雾喷嘴32喷出的水产生。
鼓表面可以用柔性材料覆盖，例如泡沫层，优选2毫米厚的平均单元尺寸为50微米的聚氨酯泡沫层。泡沫可以浸在水中或NMMO水溶液中。
在鼓28上形成无纺织物层之后，鼓28浸没在含有合适凝固剂例如水或氧化胺的稀水溶液的凝固浴27中，使鼓上的纤维素无纺织物凝固。洗涤脱除溶剂后，织物层在鼓上干燥。
表1总结了用于形成挤出长丝的各种条件。
                            表1
  样品编号     铺层方法   空气温度(℃)   空气流量(升/秒)  纤维平均直径(微米)
   1 干燥收集     145     2.5     7
   2 在湿表面上收集     148     2.3     5
   3 在湿表面上收集，并用水雾     147     2.3     5
   4 在湿表面上收集，用水雾和柔性表面     145     2.3     7
2.4升/秒的气流量约等于250米/秒的流速。
根据本发明制备了样品3和4。
表2通过厚度测量总结了网的膨松性，采用装有膜/网测试板的Mitutoyo刻度测厚仪测试厚度。因为单位重量不同，所以将厚度归一化至单位重量25克/米2。
                                        表2
  样品编号   单位重量(克/米2)   网厚度(微米)      归一化的厚度(微米/25克·米-2)     密度(克/分米3)
    1     25.3     113          112     223
    2     28.3     145          128     195
    3     28.0     168          150     166
    4     22.5     163          181     138
可以看到，按本发明制成的样品为密度不大于170克/分米3的低密度织物。
参见样品4，泡沫有两个作用，即(a)冲击到硬收集器表面上的初生纤维在冲击时会熔合-柔性表面可移走一些冲击能量并减少粘结，(b)冲击时泡沫被压缩，包含于其孔内的凝固剂排到表面上，有助于快速再生。
为了评价力学性能，从网上切下5毫米宽的条，在Testometric PCX材料张力测试仪上，以20毫米的夹距和20毫米/分钟的十字头速度进行测量。显示绝对拉伸强力的同时，也显示归一化至单位重量25克/米2的拉伸强力，以更好地反映相对力学性能，因为它可避免单位重量的变化。
表3总结了形成于鼓26上的织物的性能。
                           表3
  样品编号  归一化至25克/米2的拉伸强力(N)     断裂伸长(毫米)     评价
    1        3.7       0.7 完全断裂
    2        0.2       0.85 相当完全地断裂
    3        0.41       1.54 “断裂”后样品仍保持完整性
    4        0.09       2.5 “断裂”后样品仍保持完整性
对于样品2、3和4，由于鼓表面部分浸在凝固浴中，因此鼓表面湿润，与湿鼓接触或先前铺设的纤维发生进一步的凝固。
对于样品1，鼓表面是干燥的，织物在鼓上形成之后进行再生。
通过蒸汽雾后在鼓上收集的样品3和4，显然具有较低的拉伸强力，但断裂伸长较大。并且在断裂点之后，仍然保持部分完整性。这些高膨松性材料适用作过滤器和高吸收材料。
虽然本发明描述了含有14％纤维素的纤维素溶液的变细，但本发明也可应用于其他的溶液，例如在PCT/GB97/03391中描述的溶液，其内容引入本发明中以供参考。

Claims (15)

1.一种纤维素无纺织物的制造方法，该纤维素无纺织物由这样形成的纤维制成：将氧化胺作溶剂的纤维素溶液通过至少一个喷丝头挤出，并使挤出纤维受到高速气流的作用，然后收集纤维；其特征在于在纤维以纤维网的形式收集之前，纤维通过至少使纤维部分凝固的蒸汽雾。
2.如权利要求1所述的方法，其中所述的蒸汽雾是水雾。
3.如权利要求1或2所述的方法，其中所述的气流速率至少为200米/秒。
4.如权利要求3所述的方法，其中所述的气流流速至少为挤出物流速的50倍。
5.如权利要求1或2所述的方法，其中所述的气流温度至少为100℃。
6.如权利要求1或2所述的方法，其中所述的雾由与喷丝头间隔并位于喷丝头下面的喷嘴形成。
7.如权利要求1或2所述的方法，其中所述的纤维素溶液含有4-22重量％纤维素。
8.如权利要求1或2所述的方法，其中所述的纤维素溶液含有10-15重量％的纤维素。
9.如权利要求1或2所述的方法，其中所述的纤维素的平均聚合度约为600。
10.如权利要求1或2所述的方法，其中所述的气流包括以与挤出纤维轴成约30°斜角导向纤维的压缩空气。
11.如权利要求1或2所述的方法，其中所述的纤维网收集到干燥表面上，随后用凝固剂进一步处理所述纤维网。
12.如权利要求1或2所述的方法，其中所述的纤维网收集到被凝固剂湿润的表面上。
13.如权利要求1或2所述的方法，其中所述的纤维网收集到柔性表面上。
14.如权利要求13所述的方法，其中所述的柔性表面为约2毫米厚的泡沫层。
15.如权利要求1或2所述的方法，其中所述的纤维素溶液由在氧化胺溶剂中的14重量份聚合度约为600的纤维素组成，该氧化胺溶剂由12重量份水和74重量份N-甲基吗啉-N-氧化物组成。
CNB998070343A 1998-06-05 1999-06-04 一种纤维素无纺织物的制造方法 Expired - Lifetime CN1161502C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9812089.2 1998-06-05
GB9812089A GB2337957A (en) 1998-06-05 1998-06-05 Method of manufacture of a nonwoven fabric

Publications (2)

Publication Number Publication Date
CN1304464A CN1304464A (zh) 2001-07-18
CN1161502C true CN1161502C (zh) 2004-08-11

Family

ID=10833247

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB998070343A Expired - Lifetime CN1161502C (zh) 1998-06-05 1999-06-04 一种纤维素无纺织物的制造方法

Country Status (15)

Country Link
EP (1) EP1093536B1 (zh)
JP (1) JP4373008B2 (zh)
KR (1) KR100563788B1 (zh)
CN (1) CN1161502C (zh)
AT (1) ATE251239T1 (zh)
AU (1) AU4158299A (zh)
BR (1) BR9910862A (zh)
CA (1) CA2333882A1 (zh)
DE (1) DE69911776T2 (zh)
ES (1) ES2209444T3 (zh)
GB (1) GB2337957A (zh)
ID (1) ID27038A (zh)
TR (1) TR200003602T2 (zh)
TW (1) TW419543B (zh)
WO (1) WO1999064649A1 (zh)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6471727B2 (en) 1996-08-23 2002-10-29 Weyerhaeuser Company Lyocell fibers, and compositions for making the same
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
US6221487B1 (en) * 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6210801B1 (en) 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
US6331354B1 (en) 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6773648B2 (en) 1998-11-03 2004-08-10 Weyerhaeuser Company Meltblown process with mechanical attenuation
DE10065859B4 (de) * 2000-12-22 2006-08-24 Gerking, Lüder, Dr.-Ing. Verfahren und Vorrichtung zur Herstellung von im Wesentlichen endlosen feinen Fäden
WO2003023106A2 (en) 2001-09-07 2003-03-20 Polymer Group, Inc. Imaged nonwoven fabric comprising lyocell fibers
BRPI0409548A (pt) * 2003-04-03 2006-04-18 Du Pont processo e processo de fiação
DE102006014171A1 (de) * 2006-03-24 2007-09-27 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Flächenheizer mit leitfähigem Cellulosevlies
AT503625B1 (de) * 2006-04-28 2013-10-15 Chemiefaser Lenzing Ag Wasserstrahlverfestigtes produkt enthaltend cellulosische fasern
WO2007124522A1 (en) * 2006-04-28 2007-11-08 Lenzing Aktiengesellschaft Nonwoven melt-blown product
AT505621B1 (de) 2007-11-07 2009-03-15 Chemiefaser Lenzing Ag Vefahren zur herstellung eines wasserstrahlverfestigten produktes enthaltend cellulosische fasern
CN102560902A (zh) * 2012-01-12 2012-07-11 天津工业大学 一种粘胶纤维素纺丝成网非织造布的制造方法
AT516414B1 (de) 2014-10-28 2017-07-15 Chemiefaser Lenzing Ag Flüssigkeitsgetränkter Vliesstoff, enthaltend Zinkoxid-haltige Cellulosefasern
EP3144376A1 (en) 2015-09-16 2017-03-22 Lenzing Aktiengesellschaft Use of a lyocell fibre
AT519489B1 (de) 2016-10-21 2021-11-15 Chemiefaser Lenzing Ag Verfahren und Vorrichtung zum Herstellen von Vliesen auf Cellulosebasis, die direkt aus Lyocell-Spinnlösung gebildet werden
EP3385425A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with increased oil absorbing capability
EP3385434A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with merged fibers
EP3385426A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with increased water holding capability and low basis weight
WO2018184042A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in an industrial cleaning wipe
WO2018184040A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a cleaning and disinfecting wipe
EP3385430A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Optically transparent wet nonwoven cellulose fiber fabric
EP3385432A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with extremely low heavy metal content
WO2018184043A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a clean room wipe
WO2018184044A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a wet floor cleaning wipe
WO2018184047A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a healthcare wiper
WO2018184051A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven material designed for use in absorbent core structures with intrinsic acquistion/distribution capabilities
EP3385431A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with homogeneously merged fibers
WO2018184046A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven material designed for use as filter media
EP3385433A1 (en) * 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with tailored liquid wicking capability
WO2018184048A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use as a wipes substrate
WO2018184045A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use as a hot cooking oil filter media
EP3385428A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with fibers having non-circular cross section
WO2018184049A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven material designed for use in hygiene applications
EP3385429A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with fiber connected radiation diffusing particles
WO2018184039A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use as a dryer sheet
WO2018184050A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a wound care product
EP3385427A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with fiber diameter distribution
WO2018184041A1 (en) 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use in a beauty face mask
WO2018184038A1 (en) * 2017-04-03 2018-10-11 Lenzing Ag Continuous filament cellulose nonwoven made with multiple bonding techniques
EP3385435A1 (en) 2017-04-03 2018-10-10 Lenzing Aktiengesellschaft Nonwoven cellulose fiber fabric with different sets of pores
CN110578179A (zh) * 2018-06-08 2019-12-17 郑州中远氨纶工程技术有限公司 一种纤维素纤维长丝的生产方法及生产装置
EP3604652B1 (de) 2018-07-31 2023-09-06 Lenzing Aktiengesellschaft Vliesstoff, verwendung des vliesstoffes und wischtuch, trocknertuch sowie gesichtsmaske enthaltend den vliesstoff
EP3636672A1 (en) 2018-10-09 2020-04-15 Lenzing Aktiengesellschaft Marking of a regenerated cellulosic material
CN109554828B (zh) * 2018-10-22 2021-06-22 复旦大学 一种超低定量再生纤维素纤维丝网的制备方法
EP3696317A1 (en) 2019-02-15 2020-08-19 Lenzing Aktiengesellschaft Spun-dyed fiber and method for its manufacture
TWI770569B (zh) * 2020-07-29 2022-07-11 新麗企業股份有限公司 不織布製造設備及其製造方法
EP4163430A1 (en) 2021-10-08 2023-04-12 Lenzing Aktiengesellschaft Nonwoven layer comprising a network of substantially endless regenerated cellulosic fibers
EP4215170A1 (en) 2022-01-20 2023-07-26 Lenzing Aktiengesellschaft Nonwoven layer comprising a network of substantially continuous regenerated cellulosic fibers
EP4293148A1 (en) 2022-06-15 2023-12-20 Lenzing Aktiengesellschaft Nonwoven layer comprising a network of substantially continuous regenerated cellulosic fibers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463676A (en) * 1945-06-18 1949-03-08 Celanese Corp Dry spinning apparatus and method for the production of artificial filaments
US3415922A (en) * 1965-07-02 1968-12-10 Monsanto Co Mist spinning
US4261943A (en) * 1979-07-02 1981-04-14 Akzona Incorporated Process for surface treating cellulose products
JP2739509B2 (ja) * 1989-12-28 1998-04-15 ダイセル化学工業株式会社 中空糸膜の製造方法及びそれに用いられる筒状物
AT401393B (de) * 1994-09-05 1996-08-26 Chemiefaser Lenzing Ag Verfahren zur herstellung von cellulosefasern
US5545371A (en) * 1994-12-15 1996-08-13 Ason Engineering, Inc. Process for producing non-woven webs
FR2735794B1 (fr) * 1995-06-26 1997-09-19 Elysees Balzac Financiere Procede de preparation d'un melange de fibres et de microfibres cellulosiques
GB9607456D0 (en) * 1996-04-10 1996-06-12 Courtaulds Fibres Holdings Ltd Spinning of filaments
CN1081684C (zh) * 1996-08-23 2002-03-27 韦尔豪泽公司 里奥塞尔纤维

Also Published As

Publication number Publication date
GB9812089D0 (en) 1998-08-05
DE69911776D1 (de) 2003-11-06
WO1999064649A1 (en) 1999-12-16
ATE251239T1 (de) 2003-10-15
DE69911776T2 (de) 2004-08-19
JP4373008B2 (ja) 2009-11-25
CN1304464A (zh) 2001-07-18
EP1093536A1 (en) 2001-04-25
KR20010071345A (ko) 2001-07-28
GB2337957A (en) 1999-12-08
ID27038A (id) 2001-02-22
CA2333882A1 (en) 1999-12-16
KR100563788B1 (ko) 2006-03-27
TR200003602T2 (tr) 2001-04-20
ES2209444T3 (es) 2004-06-16
BR9910862A (pt) 2001-03-06
AU4158299A (en) 1999-12-30
JP2002517630A (ja) 2002-06-18
TW419543B (en) 2001-01-21
EP1093536B1 (en) 2003-10-01

Similar Documents

Publication Publication Date Title
CN1161502C (zh) 一种纤维素无纺织物的制造方法
CN1097649C (zh) 制造纤维素无纺布的方法和设备
CN1081684C (zh) 里奥塞尔纤维
US6773648B2 (en) Meltblown process with mechanical attenuation
US20080023873A1 (en) Process for Preparing a Non-Woven Cellulosic Structure and the Non-Woven Cellulosic Structure Prepared Therefrom
EP0381206A2 (en) Fiber, rovings and mats from lyotropic liquid crystalline polymers
US20040207110A1 (en) Shaped article from unbleached pulp and the process
US6790527B1 (en) Lyocell fiber from unbleached pulp
KR20050003126A (ko) 타이어 코드용 라이오셀 멀티 필라멘트 및 이의 제조방법
CN110079903B (zh) 电纺尼龙纳米纤维连续长线高支纱的制备方法和应用
CN1191395C (zh) 具有机械拉细的熔喷工艺
MXPA00011863A (en) Methods of manufacture of nonwoven fabric

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: LENZING AKTIENGESELLSCHAFT

Free format text: FORMER OWNER: LENZING FIBERS LTD.

Effective date: 20110517

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: LENZING FIBERS LTD.

Free format text: FORMER NAME: ACORDIS FIBRES (HOLDINGS) LTD.

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: NOTTINGHAM, THE UNITED KINGDOM TO: LENZING, AUSTRIA

CP03 Change of name, title or address

Address after: British Nottingham

Patentee after: Lion True Fiber Co.,Ltd.

Address before: English Derby

Patentee before: Tencel Ltd.

TR01 Transfer of patent right

Effective date of registration: 20110517

Address after: Austria Jinge

Patentee after: LENZING AG

Address before: British Nottingham

Patentee before: Lion True Fiber Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20040811

CX01 Expiry of patent term