TWI480437B - Lyocell staple fiber and the manufacturing process and use thereof - Google Patents
Lyocell staple fiber and the manufacturing process and use thereof Download PDFInfo
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- TWI480437B TWI480437B TW096119363A TW96119363A TWI480437B TW I480437 B TWI480437 B TW I480437B TW 096119363 A TW096119363 A TW 096119363A TW 96119363 A TW96119363 A TW 96119363A TW I480437 B TWI480437 B TW I480437B
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- 239000000835 fiber Substances 0.000 title claims description 109
- 229920000433 Lyocell Polymers 0.000 title claims description 63
- 238000004519 manufacturing process Methods 0.000 title description 9
- 238000000034 method Methods 0.000 claims description 31
- 238000007664 blowing Methods 0.000 claims description 17
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 9
- 229910003460 diamond Inorganic materials 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims description 3
- 150000003512 tertiary amines Chemical class 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 206010021639 Incontinence Diseases 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 210000003746 feather Anatomy 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000002350 laparotomy Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000009987 spinning Methods 0.000 description 18
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012765 fibrous filler Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
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- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
Description
本發明係關於Lyocell短纖維。The present invention relates to Lyocell staple fibers.
Lyocell纖維是一種從纖維素之有機溶劑(特別是含水的三級胺氧化物)的溶液所紡成的纖維素纖維。今日，N-甲基-嗎啉-N-氧化物(NMMO)在商業上可用來作為溶劑以製造Lyocell纖維。Lyocell fiber is a cellulosic fiber spun from a solution of an organic solvent of cellulose, particularly an aqueous tertiary amine oxide. Today, N-methyl-morpholine-N-oxide (NMMO) is commercially available as a solvent to make Lyocell fibers.
製造標準Lyocell纖維之方法特別是由US 4,246,221或WO 93/19230得知。該方法稱為”胺氧化物方法”或”Lyocell方法”。A method of making a standard Lyocell fiber is known in particular from US 4,246,221 or WO 93/19230. This method is called "amine oxide method" or "Lyocell method".
Lyocell短纖維是一種藉由切斷多個(無末端)纖絲所得之產物，該等纖絲藉著經由噴絲板令纖維素溶液紡絲且沉澱所紡成之纖絲而獲得。Lyocell staple fiber is a product obtained by cutting a plurality of (endless) filaments obtained by spinning a cellulose solution through a spinneret and precipitating the spun filaments.
典型地，Lyocell纖維之截面形狀基本上是圓的。此與標準之呈相當鋸齒截面形狀的膠黏纖維相反。Typically, the cross-sectional shape of the Lyocell fibers is substantially round. This is in contrast to standard adhesive fibers that have a rather serrated cross-sectional shape.
有多種製造具有限定之非圓形截面形狀之纖維素纖維的方法被提出。例如，EP 0 301 874 A揭示一種製造所謂之多葉型纖維素短纖維的方法。WO 04/85720揭示另外一種藉著經由具有多葉噴絲板孔之噴絲板將紡絲溶液紡絲以製造纖維素短纖維的方法。”Y”形截面之纖維素纖維亦在GB-A-2 085 304中提及。A variety of methods for making cellulosic fibers having a defined non-circular cross-sectional shape have been proposed. For example, EP 0 301 874 A discloses a process for the manufacture of so-called multi-lobed cellulosic staple fibers. WO 04/85720 discloses another method for producing cellulosic staple fibers by spinning a spinning solution through a spinneret having a multi-leaf spinneret orifice. Cellulosic fibers of the "Y" cross section are also mentioned in GB-A-2 085 304.
JP-A 61-113812及”Verzug,Verstreckung und Querschnittsmodifizierung beim Viskosespinnen”,Treiber E.,Chemiefasern 5(1967)344-348之刊物揭示：藉著經由具有多葉噴絲板孔之噴絲板擠出紡絲溶液以製造(無末端)纖維素纖絲。JP-A 61-113812 and "Verzug, Verstreckung und Publication of Querschnittsmodifizierung beim Viskosespinnen", Treiber E., Chemiefasern 5 (1967) 344-348 reveals the manufacture of (no end) cellulose fibrils by extruding a spinning solution through a spinneret having a multi-leaf spinneret orifice .
所有以上之參考資料限於經由膠黏方法製造纖維素纖維。就其物理及紡織性質而言，膠黏纖維相當不同於Lyocell纖維。All of the above references are limited to the manufacture of cellulose fibers via an adhesive process. Adhesive fibers are quite different from Lyocell fibers in terms of their physical and textile properties.
“Y”形Lyocell纖維之製造於EP 0 574 870 A中提及。The manufacture of "Y" shaped Lyocell fibers is mentioned in EP 0 574 870 A.
JP 10-140429 A揭示再生纖維素纖維，其是藉著經由具有接鄰安置之纖維形成孔排列之噴絲板將膠黏溶液紡絲而製造。在經由噴絲板將溶液紡絲後，經由這些纖維形成孔所擠出之纖絲被熔合以形成不規則截面形狀之纖維。JP 10-140429 A discloses regenerated cellulose fibers which are produced by spinning an adhesive solution through a spinneret having pores arranged adjacent to each other. After the solution is spun through the spinneret, the filaments extruded through the fiber forming holes are fused to form fibers of irregular cross-sectional shape.
本發明之一目的是要提供一種具有限定之非圓形截面形狀之Lyocell短纖維。It is an object of the present invention to provide a Lyocell staple fiber having a defined non-circular cross-sectional shape.
此目的藉一種由多個切斷纖絲所組成之Lyocell短纖維所解決，該等Lyocell短纖維特徵在於至少部分之該等切斷纖絲具有一種自概念上部分重疊二或更多個纖維截面形狀所得呈雙絲或多絲截面形狀的總截面形狀。This object is solved by a Lyocell staple fiber consisting of a plurality of cut filaments characterized in that at least some of the cut filaments have a self-conceptually partially overlapping two or more fiber cross sections. The shape results in a total cross-sectional shape of a double or multifilament cross-sectional shape.
供本發明之目的所用之“雙絲或多絲”截面形狀意指 一種自概念上部分重疊二或更多個纖維截面形狀所得之截面形狀。The "double or multifilament" cross-sectional shape used for the purpose of the present invention means A cross-sectional shape obtained by conceptually overlapping two or more fiber cross-sectional shapes.
亦即，雙絲截面形狀是一種自部分重疊二個纖維截面形狀所得的形狀。三絲截面形狀是一種自部分重疊三個截面形狀所得的形狀，其餘以此類推。所得之形狀在以下也稱為“總截面形狀”以與被部分重疊之單一截面形狀相對。That is, the cross-sectional shape of the twin wire is a shape obtained by partially overlapping the cross-sectional shapes of the two fibers. The three-wire cross-sectional shape is a shape obtained by partially overlapping three cross-sectional shapes, and so on. The resulting shape is also referred to below as "total cross-sectional shape" to oppose the single cross-sectional shape that is partially overlapped.
若在以下中使用例如“短纖維之截面形狀”之詞，則此被了解是指構成依本發明之短纖維之纖絲的總截面形狀。If the term "cross-sectional shape of short fibers" is used hereinafter, it is understood to mean the total cross-sectional shape of the filaments constituting the short fibers according to the present invention.
在一較佳具體表現中，至少部分的，較佳是所有的該等部分重疊的截面形狀基本上是圓形。In a preferred embodiment, at least some, and preferably all, of the partially overlapping cross-sectional shapes are substantially circular.
依照此較佳具體表現之雙絲或多絲截面形狀因此具有數個呈圓之片段的部分，亦即這些圓形的片段不重疊。另外，雙絲或多絲截面形狀在那些圓形被概念上重疊的部分中具有刻痕或鋸齒狀。The preferred cross-sectional shape of the twin or multifilaments thus has a plurality of rounded segments, i.e., the circular segments do not overlap. In addition, the cross-sectional shape of the twin or multifilament has a score or a zigzag shape in those portions where the circles are conceptually overlapped.
該等二或更多個部分重疊的圓形可以具有基本上相同之直徑。或者，一或更多個該等部分重疊的圓形可以具有比其餘之該等重疊的圓形更大之直徑。此指明所得之總截面形狀由部分重疊之較小及較大之圓形的組合所組成。The two or more partially overlapping circles may have substantially the same diameter. Alternatively, one or more of the partially overlapping circles may have a larger diameter than the remaining overlapping circles. This indicates that the resulting total cross-sectional shape consists of a combination of smaller and larger circular portions that overlap partially.
如以下將更詳細描述的，依本發明之Lyocell短纖維可以藉著經由噴絲板將纖維素溶液紡絲而製造，其中至少部分的該等噴絲板噴嘴由二或更多個接鄰安置之孔組合所組成，以致當溶液經由該等孔擠出時由該等孔擠出之纖絲 被部分地熔合以形成熔合的纖絲。As will be described in more detail below, Lyocell staple fibers in accordance with the present invention can be made by spinning a cellulosic solution through a spinneret wherein at least a portion of the spinneret nozzles are placed in two or more adjacent rows. a combination of holes, such that the filaments extruded from the holes as the solution is extruded through the holes Partially fused to form a fused filament.
這指明為要製造Lyocell短纖維(其雙絲或多絲截面形狀是如上述之部分重疊之較小及較大圓形之組合)，纖維素溶液可以經由某種幾何排列之具有不同直徑之接鄰的圓形孔來擠出。This indicates that the Lyocell staple fiber is to be produced (the cross-sectional shape of the twin or multifilament is a combination of smaller and larger circles as partially overlapped as described above), and the cellulose solution can be connected to different diameters via some geometric arrangement. Adjacent circular holes to extrude.
這不僅得到已定義之特定的總截面形狀，另外此類之本發明的短纖維具有令人意外的高皺縮值。This not only results in a specific overall cross-sectional shape that has been defined, but in addition such short fibers of the invention have surprisingly high shrinkage values.
無意侷限於任何理論，咸信此具體表現之本發明短纖維的高皺縮值起因於：設定氣隙中某一總擠出速度及某一總拉伸比率，若纖絲由具有不同直徑之紡絲孔擠出，則熔合在一起以形成熔合纖絲所得的單纖絲具有不同之抗張性，以致有某種天然張力及因此之天然皺縮於熔合之纖絲中。Without intending to be limited to any theory, it is believed that the high shrinkage value of the staple fiber of the present invention is due to: setting a certain total extrusion speed in the air gap and a certain total elongation ratio, if the filaments have different diameters When the spinning holes are extruded, the monofilaments obtained by fusing together to form the fused filaments have different tensile properties such that there is some natural tension and thus natural shrinkage in the fused fibrils.
在一較佳具體表現中，依本發明之纖維的總截面形狀是自概念上重疊二個基本上圓形所得之雙絲截面形狀。In a preferred embodiment, the overall cross-sectional shape of the fibers according to the present invention is a two-wire cross-sectional shape obtained by conceptually overlapping two substantially circular shapes.
在另一較佳具體表現中，該等總截面形狀是一種自概念上重疊三個基本上圓形所得的三絲截面形狀。In another preferred embodiment, the total cross-sectional shape is a three-wire cross-sectional shape that is conceptually overlapped by three substantially circular shapes.
該等三個重疊的圓形可以排成一排或呈三角形。該三角形較佳基本上可以是等腰三角形。The three overlapping circles can be arranged in a row or in a triangle. Preferably, the triangle may be an isosceles triangle.
在另一較佳具體表現中，該等總截面形狀是一種由概念上重疊四個基本上圓形所得之四絲截面形狀。In another preferred embodiment, the total cross-sectional shape is a four-wire cross-sectional shape resulting from conceptually overlapping four substantially circular shapes.
該等四個重疊圓形或者可以排成一排，成正方形，平行四邊形或菱形，或呈三角形，而該等圓形之一形成該等三角形之中心。The four overlapping circles may be arranged in a row, in a square, a parallelogram or a diamond, or in a triangle, and one of the circles forms the center of the triangles.
包含纖絲而具有如上述之雙絲、三絲或四絲截面形狀的Lyocell短纖維可以具有0.5至8dtex之分特(decitex)。此分特之短纖維對於織品應用是特別有用的。在吸收劑產物之領域中，或在纖維填充物或毛毯之領域中，可以使用最高達40dtex或更高之分特的依本發明之短纖維。A Lyocell staple fiber comprising a filament and having a double-filament, three-wire or four-wire cross-sectional shape as described above may have a decitex of 0.5 to 8 dtex. This short staple fiber is particularly useful for fabric applications. In the field of absorbent products, or in the field of fibrous fillers or felts, short fibers according to the invention of up to 40 dtex or higher can be used.
依本發明之短纖維的總截面形狀也可以是自概念上重疊5或更多個，較佳是5或7個基本上圓形所得之多絲截面形狀。在此具體表現中，纖維典型具有高於6dtex之分特。The total cross-sectional shape of the short fibers according to the present invention may also be a multifilament cross-sectional shape obtained by conceptually overlapping 5 or more, preferably 5 or 7 substantially circular shapes. In this particular manifestation, the fibers typically have a dtex higher than 6 dtex.
依本發明之短纖維的部分重疊截面形狀的至少一者可以是非圓形截面形狀。At least one of the partially overlapping cross-sectional shapes of the staple fibers according to the present invention may be a non-circular cross-sectional shape.
亦即，依本發明之短纖維之纖絲成分的總截面形狀可以是部分重疊之圓形及非圓形截面形狀的組合，或彼甚至可以單獨地由部分重疊之非圓形截面形狀所組成。That is, the total cross-sectional shape of the fibril component of the staple fiber according to the present invention may be a combination of partially overlapping circular and non-circular cross-sectional shapes, or it may even consist of a partially overlapping non-circular cross-sectional shape. .
該等非圓形截面形狀可以是多葉形，較佳是三葉形或三角形。The non-circular cross-sectional shape may be a multilobal shape, preferably a trilobal shape or a triangular shape.
依本發明之短纖維之特別較佳之具體表現特徵在於基本上所有的切斷纖絲具有基本上相同之總截面形狀。A particularly preferred embodiment of the staple fibers according to the present invention is characterized in that substantially all of the staple fibers have substantially the same overall cross-sectional shape.
依此具體表現之短纖維在其截面形狀及所達成之各種物性及紡織性方面具有相當均勻的性質。The short fibers thus expressed have relatively uniform properties in terms of their cross-sectional shape and various physical properties and textile properties achieved.
在另一具體表現中，構成依本發明之Lyocell短纖維的纖絲可以至少部分具有中空之雙絲或多絲截面形狀。中空結構可以藉下方式獲得：藉選擇與紡絲孔之尺寸及距離相關之紡絲參數以使擠出之單一纖絲不完全熔合，而是使 一隙縫留在所形成之熔合纖絲的中心。In another specific embodiment, the filaments constituting the Lyocell staple fiber according to the present invention may have at least partially a hollow twin or multifilament cross-sectional shape. The hollow structure can be obtained by selecting the spinning parameters related to the size and distance of the spinning holes so that the extruded single filaments are not completely fused, but A slit remains in the center of the formed fused filament.
令人驚訝地已發現：依本發明之Lyocell短纖維與具有相同分特之相當的標準Lyocell短纖維相比，具有顯著較高之韌度。特別地，依本發明之Lyocell短纖維纖維韌度在調節狀況時，與相同分特之比較性Lyocell短纖維的纖維韌度相比，高至少15%，較佳是至少20%，其中該比較性Lyocell短纖維之所有切斷纖絲具有基本上圓的截面。Surprisingly, it has been found that the Lyocell staple fiber according to the present invention has a significantly higher toughness than the standard Lyocell staple fiber having the same decitex. In particular, the Lyocell staple fiber toughness according to the present invention is at least 15% higher, preferably at least 20% higher than the fiber toughness of the comparative Lyocell staple fiber of the same decitex when the condition is adjusted, wherein the comparison is All of the cut filaments of the Lyocell staple fibers have a substantially circular cross section.
另外，依本發明之Lyocell短纖維具有令人意外之高的撓曲剛度。In addition, the Lyocell staple fiber according to the present invention has an unexpectedly high flexural rigidity.
特別地，依本發明之Lyocell短纖維具有至少0.5毫牛頓．平方毫米/平方特，較佳是大於0.6毫牛頓．平方毫米/平方特之與分特有關之撓曲剛度。In particular, the Lyocell staple fiber according to the present invention has at least 0.5 millinewtons. Square millimeters per square tex, preferably greater than 0.6 millinewtons. Square millimeters per square of flexural stiffness associated with the decitex.
撓曲剛度藉本申請人所發展之方法來測量。所測量之值顯示為在以分特為基準計之線性測量範圍內，力之梯度對途徑的關係。The flexural rigidity is measured by the method developed by the applicant. The measured values are shown as the relationship of the force gradient to the path over the linear measurement range on a decitex basis.
為要進行此測量，經調節之纖維被夾持於一夾持棒中且用切割裝置來切割成精準之5毫米長度。夾持棒藉電齒輪以定速向上移動。藉此，纖維被壓在作為力感應器之小的感應器板上。纖維越剛硬，所測量之力越高。To perform this measurement, the conditioned fibers were clamped into a clamping bar and cut with a cutting device to a precision of 5 mm length. The clamping bar is moved upwards at a constant speed by means of an electric gear. Thereby, the fiber is pressed on a small inductor plate as a force sensor. The harder the fiber, the higher the force measured.
因缺乏校正之可能性，沒有給予有效的力以供計算撓曲剛度。然而，可能在特定之測量範圍內進行纖維之相對性的比較。藉此，在所經途徑上且與纖維之分特相關之所測量之力的線性測量範圍內測量梯度。Due to the lack of correction, no effective force is given for calculating the flexural rigidity. However, it is possible to make a comparison of the relative properties of the fibers within a specific measurement range. Thereby, the gradient is measured over a linear measurement range of the measured force on the path and in relation to the delimitation of the fibers.
製造依本發明之Lyocell短纖維的方法包含以下步驟：The method of manufacturing the Lyocell staple fiber according to the present invention comprises the following steps:
-經由具有多個噴絲板噴嘴的噴絲板擠出溶於含水之三級胺氧化物的纖維素溶液以形成纖絲- extruding a cellulose solution dissolved in aqueous tertiary amine oxide via a spinneret having a plurality of spinneret nozzles to form a filament
-經由氣隙將該等纖絲導入沉澱浴中- introducing the filaments into the precipitation bath via an air gap
-拉延於該氣隙中之該等纖絲Pulling the filaments in the air gap
-將空氣吹於該氣隙中之該等纖絲上- blowing air onto the filaments in the air gap
-將該等纖絲沉澱於該沉澱浴中- precipitating the filaments in the precipitation bath
-切斷該等沉澱的纖絲以形成切斷纖絲，其特徵在於Cutting off the precipitated filaments to form a cut filament, characterized in that
-至少部分之該等噴絲板噴嘴由接鄰安置之二或更多個孔的組合所組成，以使溶液經該等孔擠出時，由該等孔擠出之纖絲部分熔合以形成一熔合的纖絲。At least a portion of the spinneret nozzles are comprised of a combination of two or more apertures disposed adjacent to each other such that when the solution is extruded through the apertures, the filaments extruded from the apertures are partially fused to form A fused filament.
令人驚訝地已發現：若纖維素之NMMO溶液經由如以上所說明之噴絲板擠出，則熔合之纖絲導致具有極均勻且可複製之雙絲或多絲截面形狀者。Surprisingly it has been found that if the NMMO solution of cellulose is extruded through a spinneret as described above, the fused filaments result in a very uniform and replicable double or multifilament cross-sectional shape.
在依本發明之方法中，至少部分的，更佳是所有的該等噴絲板孔是圓形。所有的該等孔可以具有相同直徑。In the method according to the invention, at least part, and more preferably all of the orifices of the spinneret are circular. All of the holes may have the same diameter.
可選擇地，一或更多個該等孔可以具有比其餘之該等孔更大的直徑。在此情況中，獲得之截面形狀是如上述之部分重疊較小及較大圓形的組合者。較大直徑之孔的截面積對較小直徑之孔的孔截面積的比例較佳是超過1：1至16：1，較佳是1.6：1至2.7：1。Alternatively, one or more of the apertures may have a larger diameter than the remaining apertures. In this case, the cross-sectional shape obtained is a combination of a small overlap and a large circular shape as described above. The ratio of the cross-sectional area of the larger diameter hole to the smaller cross-sectional area of the smaller diameter hole is preferably more than 1:1 to 16:1, preferably 1.6:1 to 2.7:1.
在另一具體表現中，該噴絲板噴嘴由二個各為圓形之孔所組成。In another embodiment, the spinneret nozzle is comprised of two circular holes each.
該噴絲板噴嘴也可由三個各為圓形之孔所組成。此三個孔可以排成一排，得到一個整個是扁平橢圓形的熔合纖絲截面形狀。The spinneret nozzle can also be composed of three circular holes each. The three holes can be arranged in a row to obtain a cross-sectional shape of the fused filament which is entirely flat elliptical.
再者，該等三孔可以排成三角形，較佳是等腰三角形。若所有噴絲板孔直徑相同，或特別是若等腰三較形之二等邊之交點中的孔直徑大於其他二孔之直徑，則所得之熔合纖絲之總截面形狀會有類似“泰迪熊”之本質，二個部分重疊之圓形形成熊之“耳”，等腰三角形之二等邊之焦點處之孔所紡成之纖絲的圓形則形成“面”。Furthermore, the three holes may be arranged in a triangle, preferably an isosceles triangle. If the diameters of all the spinneret holes are the same, or especially if the diameter of the holes in the intersection of the two equal sides of the isosceles is larger than the diameters of the other two holes, the total cross-sectional shape of the obtained fused filaments will be similar to "Thai". The essence of Di Xiong, the two overlapping circles form the "ear" of the bear, and the round shape of the fibril spun from the hole at the focus of the equilateral side of the isosceles triangle forms a "face".
該噴絲板噴嘴也可由四個各為圓形之孔所組成。The spinneret nozzle can also be composed of four circular holes each.
此四孔可以排成一排，而再次得到扁平且橢圓之熔合纖絲的截面形狀。The four holes can be arranged in a row, and the cross-sectional shape of the flat and elliptical fused filaments is again obtained.
可選擇地，該等四孔可以排成正方形、平行四邊形或菱形。若所有的噴絲板孔直徑相同，所得之熔合纖絲之總截面形狀則分別類似正方形、平行四邊形或菱形。Alternatively, the four holes may be arranged in a square, a parallelogram or a diamond. If all of the spinneret holes have the same diameter, the resulting cross-sectional shape of the fused filaments is similar to a square, a parallelogram or a diamond.
該等四孔也可排成三角形，而該等孔之一形成該等三角形之中心。再次，按照所用之噴絲板孔之直徑可以得到三角形或類似“泰迪熊”形狀。The four holes may also be arranged in a triangle, and one of the holes forms the center of the triangles. Again, a triangle or similar "Teddy Bear" shape can be obtained depending on the diameter of the spinneret hole used.
該噴絲板噴嘴也可以由5或更多個，較佳是5或7個各為圓形之孔所組成。當然，可能有多種不同之孔的幾何排列，得到多種不同之熔合纖絲之截面形狀，其在以下參考圖示更詳細地顯示。The spinneret nozzle may also be composed of 5 or more, preferably 5 or 7, circular holes. Of course, there may be a geometric arrangement of a plurality of different apertures resulting in a cross-sectional shape of a plurality of different fusion filaments, which are shown in more detail below with reference to the drawings.
正如以上所顯明的，熔合纖絲之總截面形狀不僅按照所用之噴絲板孔之數目及幾何排列，而且與孔直徑大小極 有關係。亦即，藉改變孔直徑或藉提供不同直徑之孔的幾何排列，所得之熔合纖絲的截面形狀會深受影響。As indicated above, the total cross-sectional shape of the fused filaments is not only in accordance with the number and geometry of the orifices used, but also in the size of the pores. There are relationships. That is, the cross-sectional shape of the resulting fused filaments is greatly affected by changing the diameter of the pores or by providing a geometric arrangement of pores of different diameters.
在本發明之另一具體表現中，至少一個該等孔為非圓形。該非圓形可以是多葉，較佳是三葉或三角形。In another embodiment of the invention, at least one of the apertures is non-circular. The non-circular shape may be a multi-lobed, preferably a trilobal or a triangular.
較佳地，所有該等噴絲板噴嘴由在該等孔之幾何排列、形狀及尺寸方面為相同之孔的組合所組成。亦即，在此具體表現中，孔之所有組合具有相同的幾何排列，且在該等排列中孔之個別尺寸及形狀對所有組合而言皆相同。藉此具體表現，已發現可能獲得具有基本上相同之雙絲或多絲截面形狀的多個纖絲。相當令人驚訝地，此種均勻且可複製之纖絲(及短纖維)截面可以在胺氧化或Lyocell方法中獲得。Preferably, all of the spinneret nozzles are comprised of a combination of holes that are identical in geometry, shape and size of the holes. That is, in this particular representation, all combinations of holes have the same geometric arrangement, and the individual sizes and shapes of the holes in the array are the same for all combinations. From this specific manifestation, it has been found that it is possible to obtain a plurality of filaments having substantially the same double or multifilament cross-sectional shape. Quite surprisingly, such uniform and replicable filament (and short fiber) cross sections can be obtained in an amine oxidation or Lyocell process.
在經由均勻之噴絲板噴嘴紡絲時，這些較佳可以位於多個平行排上。在該等排之每一者內，孔之所有組合可以基本上彼此平行定向。These may preferably be located on a plurality of parallel rows when spinning through a uniform spinneret nozzle. Within each of the rows, all combinations of holes may be oriented substantially parallel to each other.
另外，已發現：若吹在氣隙中該等纖絲上之空氣以特定方向直接導至該等纖絲，則噴絲板孔之幾何排列及其個別之尺寸及形狀可以在熔合之纖絲中最恰當地複製：In addition, it has been found that if the air blown on the filaments in the air gap is directed to the filaments in a particular direction, the geometric arrangement of the orifices of the spinneret and its individual size and shape can be in the fused fibrils. The most appropriate copy:
-在該等孔呈排的排列情況中，吹動方向較佳應基本上平行於該排的方向- in the case of the arrangement of the holes, the direction of the blow should preferably be substantially parallel to the direction of the row
-在該等孔之三角形排列的情況中，吹動方向較佳應基本上平行於該三角形底線之一的方向- in the case of a triangular arrangement of the holes, the direction of the blow should preferably be substantially parallel to the direction of one of the bottom lines of the triangle
-在該等孔之正方形排列的情況中，吹動方向較佳應基本上平行於該正方形底線之一的方向- in the case of a square arrangement of the holes, the direction of the blow should preferably be substantially parallel to the direction of one of the square bottom lines
-在該等孔之其他幾何排列的情況中，吹動方向較佳應基本上平行於該排列之主定向軸方向。- In the case of other geometric arrangements of the holes, the direction of the blow should preferably be substantially parallel to the direction of the main orientation axis of the arrangement.
數個幾何排列之主要定向軸的實例參考圖示在以下給予。An example reference diagram of the primary orientation axes of several geometric arrangements is given below.
在該等孔組合中該等孔之直徑可以是35至200微米。在非圓形情況中，“直徑”一詞指明可以外接此非圓形之圓形的直徑。如已提及的，可以使用不同直徑之孔於一孔組合中。The diameter of the holes may be 35 to 200 microns in the combination of holes. In the non-circular case, the term "diameter" indicates the diameter of the circular shape that can be circumscribed. As already mentioned, holes of different diameters can be used in a combination of holes.
在該等孔組合中一孔之中心至鄰近之另一孔之中心的距離較佳可以是100至500微米，較佳是150至250微米。熟練之技術人員可以按照所要之熔合纖絲之總截面形狀調節距離。藉合適地調節各孔間之距離及各孔的直徑，可以製造具有中空截面形狀之短纖維。The distance from the center of one of the holes to the center of the other of the holes in the combination of holes may preferably be from 100 to 500 μm, preferably from 150 to 250 μm. The skilled artisan can adjust the distance according to the total cross-sectional shape of the desired fused filament. Short fibers having a hollow cross-sectional shape can be produced by appropriately adjusting the distance between the holes and the diameter of each hole.
依本發明之Lyocell短纖維可用於多種最終用途中，例如醫藥-、衛生-、家用織品，技術-及衣物應用，特別是包紮用敷料、剖腹手術用墊、床墊、棉塞、衛生棉墊、手帕、失禁用產品、枕頭、棉被、毛巾、毛毯、羽毛織物、斜紋布、緞子、絕緣材料、聚合物或紙類或混凝土之強化纖維、紡織物件、例如針織或機織之紡織物件、襯衫衣料、絲絨、其濃(chinos)、棉類手織物及所製成之衣服。The Lyocell staple fiber according to the present invention can be used in various end uses, such as medicine, hygiene, household fabrics, technology, and clothing applications, particularly dressings for dressing, laparotomy pads, mattresses, tampon, sanitary pads , handkerchiefs, incontinence products, pillows, quilts, towels, blankets, feather fabrics, twills, satin, insulating materials, polymer or paper or concrete reinforced fibers, textile articles, textile articles such as knitted or woven, shirt fabrics , velvet, its chinos, cotton hand fabrics and the clothes made.
特別地，依本發明之Lyocell短纖維可用於任何需要更剛硬、更易碎且更“類似棉”之手感，或交替之熱及水處性質或不同光學性質的應用中。In particular, Lyocell staple fibers in accordance with the present invention can be used in any application requiring a more rigid, more brittle, and more "cotton-like" hand, or alternating heat and water properties or different optical properties.
本發明之較佳具體表現現將藉由圖式及實例描述。The preferred embodiment of the invention will now be described by way of example and example.
依照圖1，製造二絲截面形狀之Lyocell短纖維用的噴絲板噴嘴由二噴絲板孔組成(左側)。這些孔有相同或不同之直徑。任意較小之孔直徑由較小之圓所指明，反之亦然(此適用於所有圖1至7)。According to Fig. 1, a spinneret nozzle for producing a two-wire cross-sectional shape of Lyocell short fibers is composed of two spinneret holes (left side). These holes have the same or different diameters. Any smaller hole diameter is indicated by a smaller circle and vice versa (this applies to all Figures 1 to 7).
圖1右側所示之陰影結構顯示經由左側之噴絲板噴嘴所紡成之熔合纖絲的二種可能的總截面形狀。在二個具有相同大直徑之孔的情況中，得到由二個部分重疊之比較大之圓所組成之雙絲截面。在二個孔之一者具有較小直徑之情況中，得到例如在圖1右端所示之陰影結構的截面，其中較大之圓與較小之圓部分重疊。The shaded structure shown on the right side of Figure 1 shows two possible overall cross-sectional shapes of the fused fibrils spun through the spinneret nozzles on the left side. In the case of two holes having the same large diameter, a cross section of a double wire composed of two relatively large circles partially overlapping is obtained. In the case where one of the two holes has a smaller diameter, a section of the shaded structure such as shown at the right end of Fig. 1 is obtained, wherein the larger circle partially overlaps the smaller circle.
圖1中之箭頭指明吹動之空氣應導引至擠出之纖絲的較佳方向，為要達成熔合纖絲之截面形狀之再現性及均勻性的最佳結果。The arrows in Figure 1 indicate the preferred direction in which the blown air should be directed to the extruded filaments for the reproducibility and uniformity of the cross-sectional shape of the fused filaments.
圖2至7是基於圖1之相同原則的結構：在左側上，顯示噴絲板結構之幾何排列。自其右側，顯示數種可能之纖維截面形狀(陰影結構)，但與個別孔之直徑(小或大)無關。另外在這些圖之每一者中，指明空氣之較佳吹動方向。Figures 2 to 7 are structures based on the same principle of Figure 1 : on the left side, the geometric arrangement of the spinnerette structure is shown. From its right side, several possible fiber cross-sectional shapes (shaded structures) are shown, but are independent of the diameter (small or large) of individual holes. Also in each of these figures, the preferred direction of blowing of the air is indicated.
因此，在以下對於圖2至7僅給予一些敘述：關於圖2A)，若使用相同直徑之孔，則顯示呈排之三絲截面形狀。吹動方向較佳是基本上平行於此排。Therefore, only some of the following description will be given for Figs. 2 to 7: with respect to Fig. 2A), if holes of the same diameter are used, the three-wire cross-sectional shape is shown. The direction of the blow is preferably substantially parallel to the row.
圖2B)顯示三角形構型之三絲截面形狀。特別地，若等腰三角形之二等邊之交點中的孔是較大的(此由圖2B左側上之三角形構型中的粗線所指明的)，得到類似“泰迪熊”形狀(陰影結構之中間者)。吹動方向較佳是基本上平 行於紡絲孔之三角形的底線。Figure 2B) shows the three-wire cross-sectional shape of the triangular configuration. In particular, if the hole in the intersection of the equilateral sides of the isosceles triangle is larger (this is indicated by the thick line in the triangular configuration on the left side of Figure 2B), a shape similar to the "Teddy Bear" is obtained (shadow The middle of the structure). The blowing direction is preferably substantially flat The bottom line of the triangle that runs through the spinning hole.
圖3A)至3C)顯示四絲總截面形狀之各種具體表現。由箭頭所指明之較佳吹動方向對所示之所有具體表現3A)至3C)較佳是相同的。在圖3A)的情況中(柱狀之孔排列)，吹動方向較佳基本上平行於此排。在圖3B)之情況中(正方形之孔排列)，吹動方向較佳基本上平行於正方形底線之一。在圖3C)之情況中，較佳之吹動方向基本上平行於噴絲板孔之幾何排列之主定向軸。或者，較佳吹動方向可以基本上平行於圖3B)之正方形的主要對角線，或在圖3C)之情況中，可以基本上平行於孔之上端及下端間之連線所定義之軸。3A) to 3C) show various specific expressions of the total cross-sectional shape of the four wires. The preferred blowing direction indicated by the arrow is preferably the same for all of the specific representations 3A) to 3C) shown. In the case of Fig. 3A) (column arrangement of holes), the direction of the blow is preferably substantially parallel to this row. In the case of Figure 3B) (the arrangement of the holes in the square), the direction of the blow is preferably substantially parallel to one of the square bottom lines. In the case of Figure 3C), the preferred direction of blowing is substantially parallel to the main orientation axis of the geometric arrangement of the orifices of the spinneret. Alternatively, the preferred direction of blow may be substantially parallel to the major diagonal of the square of Figure 3B) or, in the case of Figure 3C), may be substantially parallel to the axis defined by the line between the upper and lower ends of the aperture. .
在圖4A)及4B)中，所示之幾何排列的個別主定向軸用虛線指明。由按照個別孔直徑所示之孔排列所得之截面形狀是自明的。按照圖A)之陰影結構顯示：藉適當地選擇四個噴絲板孔之個別距離可得之中空截面結構。In Figures 4A) and 4B), the individual main orientation axes of the geometric arrangement shown are indicated by dashed lines. The cross-sectional shape obtained by arranging the holes according to the diameter of the individual holes is self-evident. The shaded structure according to Figure A) shows a hollow cross-sectional structure obtainable by appropriately selecting individual distances of the four spinneret holes.
與圖4A)及4B)二者有關之較佳吹動方向基本上是平行於其中所指明之主定向軸。The preferred direction of blow associated with both Figures 4A) and 4B) is substantially parallel to the main orientation axis indicated therein.
同理適用於圖5A)及5B)，其顯示經由具有5個鄰近之噴絲板孔之噴絲板噴嘴令溶液紡絲所得之截面形狀。The same applies to Figures 5A) and 5B) which show the cross-sectional shape obtained by spinning a solution through a spinneret nozzle having five adjacent spinneret holes.
圖6及7顯示另外之具體表現，其包括經由具有7個鄰近噴絲板孔之噴絲板噴嘴令溶液紡絲所得之截面形狀(圖7)且包括中空之截面形狀。Figures 6 and 7 show additional specific manifestations including the cross-sectional shape (Figure 7) obtained by spinning a solution through a spinneret nozzle having seven adjacent spinneret orifices and including a hollow cross-sectional shape.
圖8及9說明空氣之吹動方向對本發明之短纖維可得之截面形狀的影響。Figures 8 and 9 illustrate the effect of the direction of blowing of air on the cross-sectional shape available for the staple fibers of the present invention.
在每一情況中，使用一種具有不同噴絲板噴嘴之噴絲板，其中該噴嘴各自由排成三角形之三個孔所組成。在每一噴嘴中，二個孔之直徑是80微米且一個孔之直徑是120微米。較大孔中心至鄰近孔中心之距離各是250微米。In each case, a spinneret having different spinneret nozzles was used, wherein the nozzles each consisted of three holes arranged in a triangle. In each nozzle, the diameter of the two holes is 80 microns and the diameter of one hole is 120 microns. The distance from the center of the larger hole to the center of the adjacent hole is 250 microns each.
圖8A、8B及9A分別顯示個別之噴絲板構型及所用之空氣吹動方向。Figures 8A, 8B and 9A show the individual spinnerette configurations and the air blowing direction used, respectively.
所有其他的紡絲參數是固定的，唯一的變數是空氣吹動方向(在圖8A、8B及9A中分別由箭頭指明)。All other spinning parameters are fixed, the only variable being the air blowing direction (indicated by arrows in Figures 8A, 8B and 9A, respectively).
正如圖8C)(其顯示按照圖8A之實驗結果)及圖8D)(其顯示按照圖8B之實驗結果)與圖9B)(其顯示按照圖9A之實驗結果)之比較所顯明的，使用按照圖9A)之排列(亦即其中空氣以基本上平行於分別由二個較小孔所定義之三角形底線方向吹至纖絲)達成纖維截面形狀之最佳均勻性及原有噴絲板孔構型之複製。As shown in Fig. 8C) (which shows the experimental results according to Fig. 8A) and Fig. 8D) (which shows the experimental results according to Fig. 8B) and Fig. 9B) (which shows the experimental results according to Fig. 9A), the use is as follows. The arrangement of Figure 9A) (i.e., where the air is blown to the filaments in a direction substantially parallel to the triangular bottom line defined by the two smaller holes, respectively) achieves the optimum uniformity of the fiber cross-sectional shape and the original spinneret structure Type copy.
圖10及11顯示由上述與圖8及9有關之噴絲板構型所製造之依本發明之Lyocell短纖維的截面形狀。Figures 10 and 11 show the cross-sectional shape of the Lyocell staple fiber according to the present invention produced by the spinnerette configuration described above in connection with Figures 8 and 9.
13%之纖維素於NMMO中所成之標準紡絲溶液在110℃下經由所述之噴絲板構型來紡絲且引導經一個約20毫米長的氣隙。A standard spinning solution of 13% cellulose in NMMO was spun through the spinnerette configuration at 110 °C and guided through an air gap of about 20 mm length.
吹動之空氣導至擠出之纖絲。吹動方向基本上平行於由二個較小噴絲板孔所定義之三角形底線(參考圖9A)。The blown air is directed to the extruded filaments. The direction of the blow is substantially parallel to the triangular bottom line defined by the two smaller spinneret holes (see Figure 9A).
圖10及11二者顯示所得纖絲之極均勻的截面形狀及噴絲板孔之類似”泰迪熊”構型的良好複製。Figures 10 and 11 show a very uniform cross-sectional shape of the resulting filaments and a good replication of a similar "Teddy Bear" configuration of the spinneret holes.
為製造圖12中所說明之短纖維，使用各具有4個孔之噴絲板噴嘴。每一孔具有100微米之直徑。一孔之中心至其鄰近孔的距離是500微米。孔排成菱形。吹動之空氣平行於菱形之主定向軸以導至所紡成之纖絲(參考圖4A)。12.3%之纖維素於NMMO中所成之標準紡絲溶液在120℃下經由所述之噴絲板構型來紡絲且引導經一個約20毫米長之氣隙。To produce the staple fibers illustrated in Figure 12, spinneret nozzles each having 4 holes were used. Each well has a diameter of 100 microns. The distance from the center of a hole to its adjacent hole is 500 microns. The holes are arranged in a diamond shape. The blown air is parallel to the main orientation axis of the diamond to lead to the spun filament (see Figure 4A). A standard spinning solution of 12.3% cellulose in NMMO was spun through the spinnerette configuration at 120 °C and guided through an air gap of about 20 mm length.
如圖12所顯明的，所得之短纖絲顯示優越之均勻截面形狀且具有明顯可複製之中空結構。As shown in Fig. 12, the resulting short fibrils exhibit a superior uniform cross-sectional shape and have a substantially reproducible hollow structure.
應用一組固定的紡絲參數，製造具有不同分特之具有基本上圓的截面之標準Lyocell短纖維及具有三絲截面形狀之Lyocell短纖維(分別由具有如所述之與實例1及圖8及9有關的噴嘴的噴絲板所紡成)。下表比較所得之纖維的纖維韌度。Using a fixed set of spinning parameters, a standard Lyocell staple fiber having a substantially circular cross section and a Lyocell staple fiber having a three-wire cross-sectional shape were produced (having as described above with Example 1 and Figure 8, respectively) And 9 related nozzles of the spinneret are spun). The following table compares the fiber tenacity of the resulting fibers.
可以容易地看出：依本發明之Lyocell短纖維與具有相同分特之標準Lyocell短纖維相比有明顯更高之纖維韌度。It can be easily seen that the Lyocell staple fiber according to the present invention has a significantly higher fiber tenacity than the standard Lyocell staple fiber having the same decitex.
使用如所述之分別與實例1及圖8及9有關之噴絲板
構型所製造之依本發明之Lyocell短纖維就其與分特有關之撓曲剛度，與其他不同形式之纖維素纖維比較。結果顯示於表2中：
在以上實例中之模型纖維依照PCT/AT/000493(無預先公告)來製造。The model fibers in the above examples were made in accordance with PCT/AT/000493 (without prior notice).
由表2顯明：具有類似三絲“泰迪熊”形狀之截面形狀與所觀察之其他纖維素纖維相比具有顯著更高之與分特相關之撓曲剛性。特別地，依本發明之Lyocell短纖維之與分特相關之撓曲剛性在所有實例中皆高於0.5毫牛頓．平方毫米/平方特。It is evident from Table 2 that the cross-sectional shape having a shape similar to the three-filament "Teddy Bear" has a significantly higher flexural rigidity associated with Dtex than the other cellulose fibers observed. In particular, the flexural rigidity associated with the Lyocell staple fiber according to the present invention is higher than 0.5 millinewton in all examples. Square mm / square tex.
圖1概略地顯示適於製造二絲截面形狀之纖絲用之噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的總截面形狀。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic representation of a spinneret nozzle suitable for use in the manufacture of filaments having a cross-sectional shape of a wire, a preferred direction of blowing of air and a possible overall cross-sectional shape of the filaments spun from the nozzles of the spinneret.
圖2A)及2B)概略地顯示二種不同之適於製造三絲截面形狀之纖絲用之噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的截面形狀。2A) and 2B) schematically show two different spinneret nozzles for making filaments of a three-wire cross-sectional shape, a preferred blowing direction of air and a fiber spun from the nozzles of the spinneret Possible cross-sectional shape of the wire.
圖3A)至3C)概略地顯示三種不同之適於製造四絲截面形狀之纖絲用之噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的截面形狀。3A) to 3C) schematically show three different spinneret nozzles for making filaments of a four-wire cross-sectional shape, a preferred blowing direction of air and a filament spun from the nozzles of the spinneret Possible cross-sectional shape.
圖4A)至4B)概略地顯示另外二種適於製造四絲截面形狀之纖絲用之噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的截面形狀。4A) to 4B) schematically show two other spinneret nozzles suitable for producing filaments having a four-wire cross-sectional shape, a preferred blowing direction of air and a filament spun from the nozzles of the spinneret Possible cross-sectional shape.
圖5A)至5B)概略地顯示另外二種不同之適於製造由5個纖維截面形狀所構成之截面形狀之纖絲用的噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖 絲的可能的截面形狀。5A) to 5B) schematically show two different spinneret nozzles suitable for producing a filament having a cross-sectional shape composed of five fiber cross-sectional shapes, a preferred blowing direction of air and the same Silk spun yarn Possible cross-sectional shape of the wire.
圖6A)至6B)概略地顯示另外二種適於製造由5個纖維截面形狀所構成之截面形狀之纖絲用的噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的截面形狀。6A) to 6B) schematically show two other spinneret nozzles suitable for producing a filament having a cross-sectional shape composed of five fiber cross-sectional shapes, a preferred blowing direction of air and a spinneret from the same Possible cross-sectional shape of the filaments spun from the nozzle.
圖7A)至7B)概略地顯示二種不同之適於製造由7個纖維截面形狀所構成之截面形狀之纖絲用的噴絲板噴嘴，空氣之較佳吹動方向及由該等噴絲板噴嘴所紡成之纖絲的可能的截面形狀。7A) to 7B) schematically show two different spinneret nozzles suitable for producing filaments having a cross-sectional shape composed of seven fiber cross-sectional shapes, a preferred blowing direction of air and by the spinning Possible cross-sectional shape of the filaments spun from the plate nozzle.
圖8A)至8D)顯示二個依本發明之製造三絲截面形狀之短纖維的具體表現。Figures 8A) through 8D) show the specific performance of two short fibers of the three-wire cross-sectional shape according to the present invention.
圖9A)至9B)顯示另一個依本發明之製造三絲截面形狀之短纖維的具體表現。9A) to 9B) show the specific performance of another short fiber according to the present invention for producing a three-wire cross-sectional shape.
圖10顯示依本發明之Lyocell短纖維的三絲截面形狀。Figure 10 shows the three-wire cross-sectional shape of the Lyocell staple fiber according to the present invention.
圖11顯示依本發明之另一個Lyocell短纖維的三絲截面形狀。Figure 11 shows the three-wire cross-sectional shape of another Lyocell staple fiber according to the present invention.
圖12顯示依本發明之具有中空結構之Lyocell短纖維的四絲截面形狀。Figure 12 shows the four-wire cross-sectional shape of a Lyocell staple fiber having a hollow structure according to the present invention.
Claims (43)
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|---|---|---|---|
| AT0101506A AT503803B1 (en) | 2006-06-14 | 2006-06-14 | LYOCELL STAPLE FIBER |
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| US (2) | US20100021711A1 (en) |
| EP (1) | EP2027314B1 (en) |
| JP (1) | JP5231404B2 (en) |
| CN (2) | CN104357928B (en) |
| AT (1) | AT503803B1 (en) |
| ES (1) | ES2531985T3 (en) |
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| AT507387A1 (en) * | 2008-09-22 | 2010-04-15 | Chemiefaser Lenzing Ag | USE OF LYOCELL FIBERS AND ARTICLES CONTAINING LYOCELL FIBERS |
| AT507757B1 (en) * | 2008-12-23 | 2015-06-15 | Chemiefaser Lenzing Ag | CELLULOSIC FORM BODIES WITH NON-CIRCULAR CROSS-SECTION AND THEIR USE IN COMPOSITE MATERIALS |
| ES2685502T3 (en) | 2010-05-25 | 2018-10-09 | Neste Oyj | Process and microorganisms for lipid production |
| KR101455002B1 (en) | 2013-06-28 | 2014-11-03 | 코오롱인더스트리 주식회사 | Lyocell Material Cigarette Filter and Method for the Same |
| KR102205529B1 (en) * | 2014-03-31 | 2021-01-20 | 코오롱인더스트리 주식회사 | Lyocell Fiber |
| WO2015152594A1 (en) * | 2014-03-31 | 2015-10-08 | 코오롱인더스트리 주식회사 | Lyocell fiber |
| JP6453575B2 (en) * | 2014-06-18 | 2019-01-16 | ダイセルポリマー株式会社 | Fiber reinforced resin composition |
| KR102211219B1 (en) * | 2014-06-30 | 2021-02-03 | 코오롱인더스트리 주식회사 | Lyocell Material with Noncircle Cross Section for Cigarette Filter And Manufacturing Method of the same |
| KR102211186B1 (en) | 2014-12-31 | 2021-02-03 | 코오롱인더스트리 주식회사 | Lyocell Material Cigarette Filter and Method for the Same |
| EP3385435A1 (en) * | 2017-04-03 | 2018-10-10 | Lenzing Aktiengesellschaft | Nonwoven cellulose fiber fabric with different sets of pores |
| EP3385428A1 (en) * | 2017-04-03 | 2018-10-10 | Lenzing Aktiengesellschaft | Nonwoven cellulose fiber fabric with fibers having non-circular cross section |
| KR102352034B1 (en) * | 2018-06-29 | 2022-01-14 | 코오롱인더스트리 주식회사 | Non-woven Fiber aggregates containing Lyocell Fibers |
| CN112981577A (en) * | 2019-12-12 | 2021-06-18 | 连津格股份公司 | Method for producing modal fibers completely chlorine-free |
| CN113089112A (en) * | 2019-12-23 | 2021-07-09 | 连津格股份公司 | Spinning machine for producing cellulose fibres and method for operating the same |
| KR20230036552A (en) | 2020-07-29 | 2023-03-14 | 렌징 악티엔게젤샤프트 | Uses of Lyocell Fiber |
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| CN104357928B (en) | 2018-11-02 |
| CN104357928A (en) | 2015-02-18 |
| TW200815633A (en) | 2008-04-01 |
| US20170121855A1 (en) | 2017-05-04 |
| CN101501252B (en) | 2014-10-29 |
| AT503803A4 (en) | 2008-01-15 |
| JP5231404B2 (en) | 2013-07-10 |
| EP2027314B1 (en) | 2014-12-10 |
| EP2027314A1 (en) | 2009-02-25 |
| US20100021711A1 (en) | 2010-01-28 |
| ES2531985T3 (en) | 2015-03-23 |
| CN101501252A (en) | 2009-08-05 |
| AT503803B1 (en) | 2008-01-15 |
| JP2009540139A (en) | 2009-11-19 |
| WO2007143761A1 (en) | 2007-12-21 |
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