CN104357928B - Lyocell staple fiber - Google Patents
Lyocell staple fiber Download PDFInfo
- Publication number
- CN104357928B CN104357928B CN201410458756.0A CN201410458756A CN104357928B CN 104357928 B CN104357928 B CN 104357928B CN 201410458756 A CN201410458756 A CN 201410458756A CN 104357928 B CN104357928 B CN 104357928B
- Authority
- CN
- China
- Prior art keywords
- cross
- staple fiber
- lyocell staple
- silk
- sectional shape
- 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 - Fee Related
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 106
- 229920000433 Lyocell Polymers 0.000 title claims abstract description 50
- 239000011148 porous material Substances 0.000 claims description 79
- 238000005452 bending Methods 0.000 claims description 9
- 239000004753 textile Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 206010021639 Incontinence Diseases 0.000 claims description 2
- 238000010410 dusting Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000002350 laparotomy Methods 0.000 claims description 2
- 238000009992 mercerising Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 238000009940 knitting Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 description 27
- 238000009987 spinning Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 11
- 229920002678 cellulose Polymers 0.000 description 10
- 235000010980 cellulose Nutrition 0.000 description 10
- 239000001913 cellulose Substances 0.000 description 9
- 238000000429 assembly Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 6
- 229920003043 Cellulose fiber Polymers 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 244000166124 Eucalyptus globulus Species 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 125000001302 tertiary amino group Chemical group 0.000 description 2
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
The present invention relates to the Lyocell staple fibers being made of more cut-out silks, it is characterized in that the whole cross-sectional shape of at least partly described cut-out silk is mariages or multifibres cross-sectional shape, nominally the shape is obtained by so that two or more fiber cross-sectional shapes is partly overlapped.
Description
Application is divisional application, and the applying date of original application is on May 29th, 2007, and application No. is 200780029500.6
(PCT/AT2007/000256), entitled " Lyocell staple fiber ".
The present invention relates to laser that (lyocell) staple fibers.
Lyocell fiber is a kind of cellulose fibre, it is by cellulose in organic solvents in particular is aqueous tertiary amino oxides
Solution spun.Now, N- Methyl-morpholines-N- oxides (NMMO) are the commercial solvents for preparing Lyocell fiber.
The method of preparation standard Lyocell fiber is well-known, for example, see US4,246,221 or WO 93/19230
Deng.This method is known as " amine-conventional ceramic technique " or " laser that method ".
Lyocell staple fiber is the product for cutting off more (continuous) silks, and the silk is by making cellulose solution spinning
By spinneret and the silk precipitation of spinning is made to obtain.
In general, the cross-sectional shape of Lyocell fiber is substantially circle.This is different from showing certain serrated cross section
The standard viscose fibres of shape.
Various methods are had been presented for prepare the cellulose fibre for having and determining non-circular transverse cross-section.For example, EP 0
301 874 A disclose the method for preparing so-called multi-lobal fibers element staple fiber.Being disclosed in WO 04/85720 makes spinning solution
Spinning prepares the another method of short fiber of cellulose by the spinneret with multi-leaf-shaped spinneret orifice.In GB-A-2 085 304
Also the cellulose fibre of Y-shaped cross section is referred to.
JP-A 61-113812 and publication " Verzug, Verstreckung und
Querschnittsmodifizierung beim Viskosespinnen ", Treiber E., Chemiefasern 5
(1967) 344-348, which is disclosed, makes spin solution be extruded through the spinneret with multi-leaf-shaped spinneret orifice and prepare (continuous) fiber
Plain silk.
It is all to be all limited in by viscose process above with reference to document and prepare cellulose fibre.Viscose rayon and Lyocell fiber
It is very different on its physics and textile performance.
The preparation of Y-shaped Lyocell fiber is referred in 0 574 870 A of EP.
JP 10-140429 A disclose regenerated celulose fibre, by making viscose solution spinning pass through spinneret by system
It is standby, the spinneret have arranged adjacent at very thin hole.After so that solution-polymerized SBR is passed through spinneret, these will be extruded through into fibre
The silk of pore melts to form the fiber with irregular cross-sectional shape.
A target of the invention is to provide with the Lyocell staple fiber for determining non-circular transverse cross-section.
This target by being realized by the more Lyocell staple fibers that form of cut-out silks, the staple fiber be characterized in that
The whole cross-sectional shape that silk is cut off described in small part is mariages or multifilament cross-sectional shape, and the shape is by making two or more
Nominally a fiber cross-sectional shapes partly overlap and obtain.
For the present invention, term " mariages or multifilament " cross-sectional shape refers to by making two or more fiber cross sections
The cross-sectional shape of acquisition nominally shape partly overlaps.
I.e. bi-filar cross-sectional shape is to be partly overlapped the shape of acquisition by making two fiber cross-sectional shapes.Three transversal
Face shape is to be partly overlapped the shape of acquisition by making three fiber cross-sectional shapes, and so on.The list of opposite segments overlapping
A cross-sectional shape, this obtained cross-sectional shape will be hereinafter referred to as " whole cross-sectional shape ".
If hereinafter using terms such as " cross-sectional shapes of staple fiber ", it is thus understood that refer to forming staple fiber of the present invention
Silk whole cross-sectional shape.
In preferred embodiments, at least partly, preferably all the partly overlapping cross-sectional shape is substantially
It is round.
Therefore, there are several arcuate sections, i.e. circle not to have for mariages or multifibres cross-sectional shape in the preferred embodiment
Those of overlapping section.In addition, the mariages or multifibres cross-sectional shape those of be overlapped on circular nominal part have it is recessed
Mouth or notch.
The circle of described two or multiple portions overlapping can have essentially identical diameter.Alternatively, described in one or more
The circular diameter that partly overlaps is big than the diameter of remaining overlapped circular shapes.This means that whole gained cross-sectional shape is by part
The mixture of the smaller and large round of overlapping forms.
As continuing in greater detail, Lyocell staple fiber of the invention can be by making cellulose solution spinning
It is prepared by spinneret, wherein at least the part spinneret orifice is made of two or more adjacent assemblies of holes, to when molten
When liquid is extruded through the pore, melt to form a fused filament from the silk part that the pore squeezes out.
This means that：Mariages or multifilament cross-sectional shape in order to prepare its middle short fiber are above-mentioned partly overlapping smaller
With the Lyocell staple fiber of the mixture of large round, cellulose solution can be extruded through to certain geometry arrangement, diameter difference
Adjacent circular pore.
This not only obtains defined specific whole cross-sectional shape, but also this invention staple fiber is with surprising
High crimp values.
It is not intended to limited to any theory, it is believed that the high curling of the invention staple fiber comes from following factor：In air gap
In under certain total rate of extrusion and certain total drawing ratio, if silk squeezed out from the different spinning capillary of diameter, one
Rise and melt the gained monofilament for forming fused filament there is different stretch performance, generated in fused filament a certain amount of natural tension and by
This causes nature to crimp.
In preferred embodiment, nominally the whole cross-sectional shape of fiber of the present invention be make two it is substantially round overlapping and
The bi-filar cross-sectional shape of generation.
In another preferred embodiment, nominally it is described entirety cross-sectional shape be make three it is substantially round are overlapped generate
Three cross-sectional shapes.
The circles of three overlappings can arrange in a row or triangle.The triangle preferably can be basic isoceles triangle
Shape.
In another preferred embodiment, nominally it is described entirety cross-sectional shape be make four it is substantially round are overlapped generate
Four cross-sectional shapes.
The circle of four overlappings can optional arrangement in a row, square, parallelogram or diamond shape or triangle,
One of them described round center for forming the triangle.
Including the above-mentioned line density with mariages, the Lyocell staple fiber of the silk of three or four cross-sectional shapes
(decitex) it can be 0.5-8dtex (dtex).The staple fiber of this line density is particularly useful for textile applications.Water absorption product is led
In domain or fiber filling or carpet applications, staple fiber of the present invention uses line density up to 40dtex or more.
The whole cross-sectional shape of staple fiber of the present invention can also be to make five or more, preferably five or seven substantially round names
The multifilament cross-sectional shape for being overlapped and generating in justice.In this embodiment, the line density of fiber is usually more than 6dtex.
The cross-sectional shape of at least one portion overlapping of staple fiber of the present invention can be non-circular transverse cross-section.
The whole cross-sectional shape of the silk component of staple fiber i.e. of the present invention can be partly overlapping round and non-circular cross-section
The mixture of face shape or its even can only be made of partly overlapping non-circular transverse cross-section.
The non-circular transverse cross-section can be multi-leaf-shaped, preferably trilobal or triangle.
One particularly preferred embodiment of staple fiber of the present invention is characterized in that essentially all cut-out silk all has base
This identical whole cross-sectional shape.
The staple fiber of the preferred embodiment has relatively uniform performance：Cross-sectional shape and thus obtained various objects
Reason and textile performance.
In another embodiment, the silk for forming Lyocell staple fiber of the present invention can at least partially hollow mariages or multifilament cross
Cross sectional shape.Hollow structure can be by obtaining as follows：Select the spinning parameters such as spinning capillary size and distance so that the list of extrusion
Silk not exclusively melts, but in the fused filament center leaving gap of formation.
It was unexpectedly found that：The same class standard laser of the identical line density of tensile strength ratio of Lyocell staple fiber of the present invention
Your staple fiber is much higher.In particular, fiber bundle strength of the Lyocell staple fiber of the present invention under damping state compares same line
The control Lyocell staple fiber height at least 15%, preferably at least 20% of density, wherein the control Lyocell staple fiber is all
Cutting off silk has substantially round cross section.
In addition, Lyocell staple fiber of the present invention has surprising high bending stiffness.
In particular, Lyocell staple fiber of the present invention is at least 0.5mN.mm with the relevant bending stiffness of line density2/tex2,
Preferably greater than 0.6mN.mm2/tex2。
The bending stiffness method that applicant establishes through the invention measures.Measured value is shown as based on line density,
The slope of certain linear measurement range internal force track.
In order to measure, it is 5mm to sandwich on clamping bar and be accurately cut into length with cut-out equipment conditioned silk.Pass through
Electromechanical transmission makes clamping bar be moved up with constant speed.To fiber is pressed onto on small tablet, the tablet is used as
Strain gauge.Fiber is harder, and the power measured is higher.
Due to that can not possibly correct, effective force cannot be provided to calculate bending hardness.However, it is possible within the scope of particular measurement
Fiber is carried out relatively.To measure slope in the linear measurement range of the power track of measurement, and make itself and fiber
Line density is related.
The method that the present invention prepares Lyocell staple fiber includes the following steps：
Solution of the cellulose dissolution in aqueous tertiary amino oxides is extruded through the spinneret with multiple spinneret orifices,
Silk is consequently formed
The guiding silk enters coagulating bath by air gap
The silk is stretched in the air gap
Air is blown on the silk in the air gap
The silk is set to be solidified in the coagulating bath
The coagulated yarn is cut off to form cut-out silk,
And it is characterized in that：
At least partly described spinneret orifice is made of two or more adjacent assemblies of holes, squeezes the solution to work as
When going out through the pore, fused filament is formed from the silk partial melting that the pore squeezes out.
It was unexpectedly found that：If the cellulose solution in NMMO is extruded through above-mentioned spinneret, obtain
Fused filament with highly uniform, reproducible mariages or multifilament cross-sectional shape.
In the method for the present invention, preferably at least part, more preferable all spinneret pores are circle.All pores can
With same diameter.
Alternatively, the diameter of one or more pores is big than the diameter of remaining pore.In this case, the cross obtained
Section is partly overlapping smaller and large round mixture as described above.Larger diameter pore and small diameter pore
The ratio between cross-sectional area is preferably 1: 1-16: 1, preferably 1.6: 1-2.7: 1.
In another preferred embodiment, the spinneret orifice is made of two pores, and each pore is circle.
The spinneret orifice can be also made of three pores, and each pore is circle.Three pores can arrange in a row, obtain
To flat, rectangular fused filament entirety cross-sectional shape.
In addition, three pores can be arranged in triangle, preferably isosceles triangle.If the diameter of all spinning capillaries
It is identical, or in particular, if the diameter of pore is more than other two pores, institute on the equilateral intersection point of isosceles triangle two-phase
" ears " of bear will be formed with the shape of toy " teddy bear ", two partly overlapping circles by obtaining fused filament entirety cross section,
The round of the spun silk of pore forms " face " on the intersection point equilateral from isosceles triangle two-phase.
The spinneret orifice can be also made of four pores, and each pore is circle.
Four pores can arrange in a row, be similarly obtained flat, rectangular fused filament entirety cross-sectional shape.
Alternatively, four pores can be arranged in square, parallelogram or diamond shape.If all spinning capillaries is straight
Diameter is identical, then the whole cross-sectional shape of gained fused filament will be respectively similar to square, parallelogram or diamond shape.
Four pores can also be arranged in triangle, one of them pore forms the center of the triangle.Together
Sample is likely to be obtained the shape as triangle or toy " teddy bear " according to the diameter of spinning capillary used.
The spinneret orifice can be also made of five or more pores, preferably five or seven pores, and each pore is circle.
Certainly, pore may be many kinds of different geometry arrangements, obtain a variety of different fused filaments cross sections, below with reference to the accompanying drawings more in detail
Carefully shown.
By above description it is readily apparent that the whole cross-sectional shape of fused filament depends not only upon in the spinneret orifice
The number and geometry of spinneret pore used arrange, also very related with pore diameter size.I.e. by changing pore diameter or leading to
The geometry arrangement that different-diameter pore is provided is crossed, gained fused filament cross-sectional shape will be largely effected on.
In another embodiment of the present invention, at least one pore is non-circular.It is described non-circular to be multi-leaf-shaped, it is excellent
Select trilobal or triangle.
It is preferred that all spinneret orifices in the geometry of pore by arranging, identical assemblies of holes forms in shape and size.
That is, in this embodiment, all assemblies of holes are arranged with identical geometry, and it is each in the arrangement for all combinations
Pore size and shape are all identical.It is found by this embodiment：It is likely to be obtained horizontal with essentially identical mariages or multifilament
The bonding multifilament of cross sectional shape.Quite surprisingly：This uniform, reproducible silk (and staple fiber) cross section can pass through amine
Oxide or laser that method obtain.
If by uniform spinneret orifice spinning, these may be preferably arranged in parallel multirow.In each row, Suo Youxi
Hole combination can be generally parallel to each other orientation.
It is found furthermore that：If be directed to the air on the silk is blown in air gap on the silk with specific direction, spray
The geometry arrangement of silk pore and its each size and shape can most preferably be reappeared in fused filament：
If the pore arrangement in a row, blowing direction should be preferably substantially parallel to the direction of the row
If the pore answers a baseline of the preferably substantially parallel triangle at rounded projections arranged, blowing direction
If the pore, at square arrangement, blowing direction should be preferably substantially parallel to a base of the square
Line
If the pore is arranged at other geometry, blowing direction should be preferably substantially parallel to the main axis of orientation of arrangement
Direction.
Below with reference to the accompanying drawings the main axis of orientation example of several geometry arrangements is provided.
Pore diameter described in the assemblies of holes can be 35-200 μm.If it is non-circular pore, term " diameter " is
Finger can the circumscribed diameter of a circle around the non-circular shape.As already mentioned, the pore of different-diameter can be used for a pore
In combination.
The distance at a pore center to adjacent pore center is preferably 100-500 μm in the assemblies of holes, preferably
150-250μm.Technical staff can adjust this distance according to required fused filament entirety cross-sectional shape.By correctly adjusting each pore
The distance between and each pore diameter, the staple fiber with hollow cross sectional shape can be prepared.
The present invention Lyocell staple fiber can be used for various final uses, such as medical treatment, health, household textiles, technology and
Apparel applications, especially bandage, laparotomy ventrotomy pad, mattress, tampon, sanitary napkin, cloth for wiping or dusting, incontinence product, pillow, duvet,
Reinforcing material, the textile such as needle of towel, woollen blanket, pile, figured satin, satin, insulating materials, polymer, paper or concrete
It knits or woven product, brown shirting, velour, mercerising khaki, feel fabric and its clothes of preparation as cotton.
Particularly, Lyocell staple fiber of the invention can be used for needing harder, more refreshing, more feel or different heat " as cotton "
With wet management of performance or Bu Tong optical any application.
The preferred embodiment of the invention will be described by drawings and examples now.
Brief description：
Fig. 1 illustrates spinneret orifice, the preferred blowing directions and from described suitable for preparing the silk with bi-filar cross-sectional shape
The possibility entirety cross-sectional shape of the silk of spinneret orifice spinning.
Fig. 2A) and 2B) illustrate suitable for preparing two kinds of the silk different spinneret orifices with three cross-sectional shapes, preferably
The possibility entirety cross-sectional shape of blowing direction and the silk spinned from the spinneret orifice.
Fig. 3 A) -3C) it illustrates suitable for three kinds of silk of the preparation with four cross-sectional shapes different spinneret orifices, preferably
The possibility entirety cross-sectional shape of blowing direction and the silk spinned from the spinneret orifice.
Fig. 4 A) -4B) it illustrates suitable for preparing two kinds of other spinneret orifices with four cross-sectional shapes, preferably dry
The possibility entirety cross-sectional shape in direction and the silk spinned from the spinneret orifice.
Fig. 5 A) -5B) it illustrates suitable for preparing the silk with the cross-sectional shape being made of five fiber cross-sectional shapes
Two kinds of different spinneret orifices, the possibility entirety cross-sectional shape of preferred blowing direction and the silk spinned from the spinneret orifice.
Fig. 6 A) -6B) it illustrates suitable for preparing the silk with the cross-sectional shape being made of five fiber cross-sectional shapes
Two kinds of other spinneret orifices, the possibility entirety cross-sectional shape of preferred blowing direction and the silk spinned from the spinneret orifice.
Fig. 7 A) -7B) it illustrates suitable for preparing the silk with the cross-sectional shape being made of seven fiber cross-sectional shapes
Two kinds of different spinneret orifices, the possibility entirety cross-sectional shape of preferred blowing direction and the silk spinned from the spinneret orifice.
Fig. 8 A) -8D) show that two embodiments for preparing staple fiber of the present invention, the staple fiber are transversal with three
Face shape.
Fig. 9 A) -9B) show that the another embodiment for preparing staple fiber of the present invention, the staple fiber are transversal with three
Face shape.
Figure 10 shows three cross-sectional shapes of the Lyocell staple fiber of the present invention.
Figure 11 shows three cross-sectional shapes of another Lyocell staple fiber of the present invention.
Figure 12 shows that four cross-sectional shapes of the Lyocell staple fiber of the present invention, the staple fiber have hollow knot
Structure.
In Fig. 1, the spinneret orifice of the Lyocell staple fiber with bi-filar cross-sectional shape is used to prepare by two spinneret pores
It forms in (left side).The pore can have identical or different diameter.Optional smaller pore diameter indicates with compared with roundlet, otherwise also
So (this is suitable for all Fig. 1-7).
The shadowing structures shown on the right side of Fig. 1 show that two kinds of the fused filament spinned by left side spinneret orifice may be whole horizontal
Cross sectional shape.If the diameter of two pores is identical, obtain by two partly overlapping bi-filar cross-sectionals formed compared with great circle.
If one diameter is smaller in two pores, the cross-sectional shape of the shadowing structures shown such as Fig. 1 right ends is generated, wherein
One partly overlaps with one compared with roundlet compared with great circle.
Arrow shows preferred blowing direction in Fig. 1, it should be directed to blowing with the direction and squeeze out on silk, to obtain
Obtain the reproducibility of fused filament cross-sectional shape and the result that uniformity is best.
Fig. 2-7 is according to primary structure identical with Fig. 1：Left side shows the geometry arrangement of spinneret plate structure.To the right from this
Show several possible fiber cross-sectional shapes (shadowing structures), the cross-sectional shape depend on each pore diameter (it is small or
Greatly).In addition, having marked preferred blowing direction in each figure.
Therefore, several evaluations are only provided to Fig. 2-7 below：
Fig. 2A) show three cross-sectional shapes in a row, it is assumed that use the pore of same diameter.Blowing direction is preferred
It is basically parallel to the row.
Fig. 2 B) show into three cross-sectional shapes of possibility of triangular structure.In particular, if isosceles triangle two-phase
The pore of equilateral intersection point is larger (this in fig. 2b left side triangle pore structure in indicated with thick line), then it is " safe to generate toy
Shape as enlightening bear " (intermediate shadowing structures).Blowing direction is preferably substantially parallel to the baseline of spinning capillary triangle.
Fig. 3 A-3C) show four cross-sectional shapes of various entirety.For the embodiment 3A of all displays) -3C), excellent
The blowing direction (indicated with arrows) of choosing is preferably identical.Fig. 3 A) in the case of (pore arrangement is in column), blowing direction is preferably parallel
In the row.Fig. 3 B) in the case of (pore is arranged in square), blowing direction is preferably substantially parallel to the one of the square
Baseline.Fig. 3 C) in the case of, preferably blowing direction is basically parallel to the main axis of orientation of spinneret pore geometry arrangement.Alternatively,
It is preferred that blowing direction may be approximately parallel to Fig. 3 B) square leading diagonal or Fig. 3 C) in the case of, blowing direction can be basic
It is parallel to the axis of wire definition between the pore highs and lows.
Fig. 4 A) and 4B) in, each main axis of orientation of shown geometry arrangement is indicated with dotted line.Depending on each pore diameter, from institute
It is puzzled self-evident to state the obtainable cross-sectional shape of pore arrangement.Figure A) shadowing structures show hollow cross-section structure,
The structure can obtain by proper choice of the respective distance of four spinneret pores.
Fig. 4 A) and preferred blowing direction 4B) be basically parallel to the main axis of orientation wherein marked.
Fig. 5 A) with 5B) the case where it is similar, the figure, which is shown, makes solution-polymerized SBR pass through tool there are five adjacent spinneret pore
Cross-sectional shape obtained from spinneret.
Fig. 6 and 7 shows other embodiments, including makes solution-polymerized SBR by spinneret orifice with seven adjacent pores
Obtained cross-sectional shape (Fig. 7), including hollow cross sectional shape.
Embodiment：
Embodiment 1：
Fig. 8 and 9 illustrates influence of the blowing direction to staple fiber cross-sectional shape obtained by the present invention.
In the case of various, using the spinneret with various spinneret orifices, each freedom three of spinneret orifice is arranged in triangle
The pore of shape forms.In each hole, a diameter of 80 μm of two pores, a diameter of 120 μm of a pore.Large hole center is to phase
The distance at adjacent hole center is respectively 250 μm.
Fig. 8 A, 8B and 9A respectively illustrate each spinneret plate structure and blowing direction used.
All other spinning parameter is constant, and unique variation is blowing direction (Fig. 8 A), 8B) and 9A) in use arrow respectively
Mark).
With Fig. 9 B) compared with (result of display Fig. 9 A experiment), from Fig. 8 C) (result of display Fig. 8 A experiments) and Fig. 8 D) (show
The result of diagram 8B experiments), it is obvious that using Fig. 9 A) test and (wherein determine wind to be basically parallel to two smaller pores
The direction of the baseline of the triangle of justice is blown on silk) obtain the best uniformity of fiber cross-sectional shapes and initial spinneret pore knot
The reproducibility of structure.
Embodiment 2：
Figure 10 and 11 shows the cross-sectional shape of the Lyocell staple fiber of the present invention, and the staple fiber is from above with reference to figure
It is prepared by the spinneret plate structure of 8 and 9 descriptions.
Standard spinning solution spinning of 13% cellulose in NMMO is set to pass through the spinneret plate structure and draw at 110 DEG C
The air gap of length about 20mm was connected.
Blowing is directed to and is squeezed out on silk.Blowing direction is basically parallel to the triangular basis that two smaller spinneret pore defines
Line (referring to Fig. 9 A).
Figure 10 and Figure 11 all show gained silk highly uniform cross-sectional shape and toy " teddy bear " as spinneret pore
The good reproduction of structure.
Embodiment 3：
In order to prepare the staple fiber described in Figure 12, using respective tool, there are four the spinneret orifices of pore.The diameter of each pore
It is 100 μm.The distance of one pore center to its adjacent pore is 500 μm.The pore is arranged in rhomboid.It will dry with base
Originally the direction for being parallel to the main axis of orientation of the rhomboid is directed on spinning silk (referring to Fig. 4 A).Make 12.3% at 120 DEG C
The air gap that standard spinning solution spinning of the cellulose in NMMO passes through length about 20mm by the spinneret plate structure and guiding.
From Figure 12, it is obvious that gained staple fiber shows excellent uniform cross sectional shape and with very reproducible
Hollow structure.
Embodiment 4：
Using one group of constant spinning parameter, it is prepared for that line density is different, standard laser with substantially round cross section
Your staple fiber and Lyocell staple fiber with three cross-sectional shapes are (respectively from the spray with embodiment 1 and Fig. 8,9 holes
Filament plate spins).Following table compares the fiber bundle strength of gained fiber：
Table 1
* Bacell is the eucalyptus sulfate pulp dregs of rice for the TCF bleachings for originating from Bahia Brasil.
**KZO3It is the beech sulphite pulp for the TCF bleachings for originating from Lenzing AG.
It can be easily seen that：The fiber bundle strength of the Lyocell staple fiber of the present invention is than the standard Lay with identical line density
Sai Er fibers are much higher.
Embodiment 5：
The short fibre of laser that of the present invention prepared by the spinneret plate structure that reference implementation example 1 and Fig. 8,9 descriptions is respectively adopted
Dimension carries out the relevant bending stiffness of line density with various other fiber cellulose fibers and compares.As a result it is shown in table 2：
Table 2：
* Saiccor is the eucalyptus sulphite pulp for the TCF bleachings for originating from Saiccor South Africa.
Modal fibers in above example are prepared according to the introduction (not pre- disclosure) of PCT/AT/000493.
It is apparent from from table 2：The line of Lyocell staple fiber with three toy " teddy bear " shape cross-sectional shapes is close
It is more much higher than observed other celluloses to spend relevant bending stiffness.The line of staple fiber of the present invention in especially all embodiments
The relevant bending stiffness of density is more than 0.5mN mm2/tex2。
Claims (12)
1. the Lyocell staple fiber being made of more cut-out silks, it is characterised in that the cut-out silk is squeezed out from multiple pores and portion
Fusing is divided to form a fused filament, the whole cross-sectional shape of at least partly described cut-out silk is three cross-sectional shapes, described
Shape is obtained by so that nominally three fiber cross-sectional shapes is partly overlapped,
One of them described partly overlapping circular diameter is bigger than the circular diameter that partly overlaps described in remaining two,
Nominally the wherein described whole cross-sectional shape for make three it is substantially round be overlapped three cross-sectional shapes generated, and
And
The circular arrangement of wherein described three overlappings is at triangle.
2. the Lyocell staple fiber of claim 1, it is characterised in that the circle of described two or multiple portions overlapping substantially has
There is same diameter.
3. the Lyocell staple fiber of claim 1, it is characterised in that the triangle is basic isosceles triangle.
4. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that the line density of the silk is 0.5-8 dtex.
5. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that the line density of the silk is 0.5-4 dtex.
6. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that essentially all cut-out silk all has basic
Identical entirety cross-sectional shape.
7. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that the entirety cross-sectional shape is hollow.
8. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that its fiber anti-tensile under damping state is strong
Degree is higher than the control Lyocell staple fiber of identical line density by least 15%, wherein all cut-outs of the control Lyocell staple fiber
Silk has substantially round cross section.
9. the Lyocell staple fiber of claim 8, it is characterised in that its fiber bundle strength under damping state compares same line
The control Lyocell staple fiber height at least 20% of density.
10. the Lyocell staple fiber of any one of claim 1-3, it is characterised in that the relevant bending stiffness of its line density is extremely
Few 0.5 mN.mm2/tex2.
11. the Lyocell staple fiber of claim 10, it is characterised in that the relevant bending stiffness of its line density is more than 0.6
mN.mm²/tex²。
12. the Lyocell staple fiber of any one of claim 1-10 is used for the purposes of product chosen from the followings：Medical, health,
Household textiles, technology and apparel applications, as bandage, laparotomy ventrotomy pad, mattress, tampon, sanitary napkin, cloth for wiping or dusting, incontinence product,
Pillow, duvet, towel, woollen blanket, pile, figured satin, satin, insulating materials, for the enhancing of polymer, paper or concrete
Material, textile are such as knitting or woven product, brown shirting, velour, mercerising khaki, feel fabric as cotton and its preparation
Clothes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1015/2006 | 2006-06-14 | ||
| AT0101506A AT503803B1 (en) | 2006-06-14 | 2006-06-14 | LYOCELL STAPLE FIBER |
| CN200780029500.6A CN101501252B (en) | 2006-06-14 | 2007-05-29 | Lyocell staple fiber |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780029500.6A Division CN101501252B (en) | 2006-06-14 | 2007-05-29 | Lyocell staple fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104357928A CN104357928A (en) | 2015-02-18 |
| CN104357928B true CN104357928B (en) | 2018-11-02 |
Family
ID=38531755
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780029500.6A Expired - Fee Related CN101501252B (en) | 2006-06-14 | 2007-05-29 | Lyocell staple fiber |
| CN201410458756.0A Expired - Fee Related CN104357928B (en) | 2006-06-14 | 2007-05-29 | Lyocell staple fiber |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780029500.6A Expired - Fee Related CN101501252B (en) | 2006-06-14 | 2007-05-29 | Lyocell staple fiber |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US20100021711A1 (en) |
| EP (1) | EP2027314B1 (en) |
| JP (1) | JP5231404B2 (en) |
| CN (2) | CN101501252B (en) |
| AT (1) | AT503803B1 (en) |
| ES (1) | ES2531985T3 (en) |
| TW (1) | TWI480437B (en) |
| WO (1) | WO2007143761A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP2390341B1 (en) | 2010-05-25 | 2018-06-27 | Neste Oyj | Process and microorganisms for production of lipids |
| KR101455002B1 (en) | 2013-06-28 | 2014-11-03 | 코오롱인더스트리 주식회사 | Lyocell Material Cigarette Filter and Method for the Same |
| WO2015152594A1 (en) * | 2014-03-31 | 2015-10-08 | 코오롱인더스트리 주식회사 | Lyocell fiber |
| KR102205529B1 (en) * | 2014-03-31 | 2021-01-20 | 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 |
| CN116157572A (en) | 2020-07-29 | 2023-05-23 | 兰精股份公司 | Use of lyocell fibres |
| US11795624B2 (en) | 2021-11-01 | 2023-10-24 | Kimberly-Clark Worldwide, Inc. | Through-air dried tissue products comprising regenerated cellulose fiber |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1773969A (en) * | 1928-09-08 | 1930-08-26 | Celanese Corp | Process of and apparatus for making artificial filaments |
| DE7005636U (en) * | 1969-02-20 | 1970-05-21 | Bemberg Societa Per Azioni | CELLULOSE ARTIFICIAL THREAD WITH IMPROVED PROPERTIES. |
| US4246221A (en) * | 1979-03-02 | 1981-01-20 | Akzona Incorporated | Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent |
| JPS6017844B2 (en) * | 1978-03-30 | 1985-05-07 | 旭化成工業株式会社 | Acrylic fiber manufacturing method |
| JPS6065108A (en) * | 1983-05-09 | 1985-04-13 | Mitsubishi Rayon Co Ltd | Acrylonitrile filament yarn and its production |
| SU1341259A1 (en) * | 1985-11-01 | 1987-09-30 | Предприятие П/Я Г-4132 | Apparatus for forming complex profiled yarn |
| JPS6426712A (en) * | 1987-07-20 | 1989-01-30 | Mitsubishi Rayon Co | Production of modified cross-section acrylic fiber by dry spinning |
| JP2550807B2 (en) * | 1991-08-19 | 1996-11-06 | 東レ株式会社 | Dry-wet spinneret of acrylic cross-section fiber |
| US5108838A (en) * | 1991-08-27 | 1992-04-28 | E. I. Du Pont De Nemours And Company | Trilobal and tetralobal filaments exhibiting low glitter and high bulk |
| ATA53792A (en) * | 1992-03-17 | 1995-02-15 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, DEVICE FOR IMPLEMENTING THE METHOD AND USE OF A SPINNING DEVICE |
| US5417909A (en) * | 1992-06-16 | 1995-05-23 | Thuringisches Institut Fur Textil- Und Kunststoff-Forschung E.V. | Process for manufacturing molded articles of cellulose |
| JPH07305219A (en) * | 1994-05-10 | 1995-11-21 | Toyobo Co Ltd | Production of polynosic fiber with modified cross-section |
| JPH083814A (en) * | 1994-06-16 | 1996-01-09 | Toray Ind Inc | Production of liquid crystal polyester fiber |
| US6306334B1 (en) * | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
| JP3844089B2 (en) * | 1996-11-07 | 2006-11-08 | 東洋紡績株式会社 | Blended yarn |
| JP3832000B2 (en) * | 1996-11-21 | 2006-10-11 | 東洋紡績株式会社 | Modified cross-section regenerated cellulose fiber and process for producing the same |
| GB2324064A (en) * | 1997-04-11 | 1998-10-14 | Courtaulds Fibres | Modified lyocell fibre and method of its formation |
| DE29709804U1 (en) * | 1997-05-30 | 1997-08-14 | Hoechst Trevira Gmbh & Co Kg | Flame retardant shingle |
| US6773648B2 (en) * | 1998-11-03 | 2004-08-10 | Weyerhaeuser Company | Meltblown process with mechanical attenuation |
| JP2000190812A (en) * | 1998-12-28 | 2000-07-11 | Toray Ind Inc | Synthetic fiber for seat belt, and seat belt webbing |
| JP2001316936A (en) * | 2000-05-10 | 2001-11-16 | Toyobo Co Ltd | Method for producing solvent spun cellulose fiber |
| JP2002201526A (en) * | 2000-12-27 | 2002-07-19 | Japan Exlan Co Ltd | Spinneret |
| DE60322903D1 (en) * | 2002-07-09 | 2008-09-25 | Chemiefaser Lenzing Ag | METHOD FOR THE PRODUCTION OF REGENERATED VISCOSE FIBERS |
| AT411863B (en) * | 2002-09-16 | 2004-07-26 | Chemiefaser Lenzing Ag | BLANKET, PREFERABLY QUILTED BLANKET |
| AT412654B (en) * | 2003-03-27 | 2005-05-25 | Chemiefaser Lenzing Ag | MASSIVE REGENERATED STANDARD VISCOSE FIBER |
| DE10314878A1 (en) * | 2003-04-01 | 2004-10-28 | Zimmer Ag | Method and device for producing post-stretched cellulose filaments |
| AT501931B1 (en) * | 2004-12-10 | 2007-08-15 | Chemiefaser Lenzing Ag | CELLULOSE STAPLE FIBER AND ITS USE |
| DE102005024433A1 (en) * | 2005-05-24 | 2006-02-16 | Zimmer Ag | Lyocell staple fibers of increased loop strength are obtained by having tertiary amine oxides still present in the spun filaments during the cutting stage |
-
2006
- 2006-06-14 AT AT0101506A patent/AT503803B1/en not_active IP Right Cessation
-
2007
- 2007-05-29 US US12/304,622 patent/US20100021711A1/en not_active Abandoned
- 2007-05-29 CN CN200780029500.6A patent/CN101501252B/en not_active Expired - Fee Related
- 2007-05-29 EP EP07718467.9A patent/EP2027314B1/en active Active
- 2007-05-29 WO PCT/AT2007/000256 patent/WO2007143761A1/en active Application Filing
- 2007-05-29 CN CN201410458756.0A patent/CN104357928B/en not_active Expired - Fee Related
- 2007-05-29 ES ES07718467.9T patent/ES2531985T3/en active Active
- 2007-05-29 JP JP2009514588A patent/JP5231404B2/en not_active Expired - Fee Related
- 2007-05-30 TW TW096119363A patent/TWI480437B/en not_active IP Right Cessation
-
2015
- 2015-09-30 US US14/871,155 patent/US20170121855A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20170121855A1 (en) | 2017-05-04 |
| CN101501252B (en) | 2014-10-29 |
| TW200815633A (en) | 2008-04-01 |
| EP2027314A1 (en) | 2009-02-25 |
| WO2007143761A1 (en) | 2007-12-21 |
| TWI480437B (en) | 2015-04-11 |
| AT503803B1 (en) | 2008-01-15 |
| CN104357928A (en) | 2015-02-18 |
| JP5231404B2 (en) | 2013-07-10 |
| CN101501252A (en) | 2009-08-05 |
| ES2531985T3 (en) | 2015-03-23 |
| EP2027314B1 (en) | 2014-12-10 |
| JP2009540139A (en) | 2009-11-19 |
| US20100021711A1 (en) | 2010-01-28 |
| AT503803A4 (en) | 2008-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104357928B (en) | Lyocell staple fiber | |
| JP3769013B2 (en) | Hollow nylon filament, hollow nylon yarn, and production method thereof | |
| CN108286101B (en) | A kind of complex yarn manufacturing process of built-in powder body material | |
| KR102611708B1 (en) | Bulkisa | |
| JPH01201569A (en) | Bulky reinforced nonwoven fabric | |
| CN107208337B (en) | Structure with distributed filling material | |
| JPH0797734A (en) | Conjugate yarn having excellent stiffness, toughness and springiness | |
| JP2615109B2 (en) | Method for producing flat spun yarn | |
| CN108342795A (en) | A kind of ultrashort difficult method for spinning fiber short route resultant yarn | |
| JP4507389B2 (en) | Polyolefin fiber and nonwoven fabric and absorbent article using the same | |
| KR101602838B1 (en) | Carpet with improved coupling pile thread | |
| JP4211125B2 (en) | High water absorption, quick drying polyester X-type cross-section fiber | |
| JP4511260B2 (en) | Narrow tape and narrow tape | |
| JP3621293B2 (en) | Multicolor partially fused false twisted yarn and method for producing the same | |
| JP2000226746A (en) | Composite bulky yarn improved in permanent set property in fatigue and its production | |
| JP2007231477A (en) | Long and short fiber composite spun yarn and fabric using the same | |
| JP2000017556A (en) | Nonwoven fabric of polyester short fiber for padding cloth | |
| TW200912056A (en) | Spliceable fibres with built-in break points, use thereof and device for their production | |
| JPS6399340A (en) | Different fineness and different shrinkage blended fiber yarn | |
| JPH0327143A (en) | Conjugate textured yarn and production thereof | |
| JP2001279564A (en) | Polyamide-based knitted fabric and inner wear | |
| JPH0219519A (en) | Production of composite yarn | |
| JPS58191236A (en) | Fancy yarn | |
| JPH11172524A (en) | Production of polyester fiber | |
| JPH0835153A (en) | Pile yarn for warp knitted fabric and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |