CA2103082A1 - Spinnerette plate for the manufacture of a multilobal fiber with v-shaped ends - Google Patents
Spinnerette plate for the manufacture of a multilobal fiber with v-shaped endsInfo
- Publication number
- CA2103082A1 CA2103082A1 CA 2103082 CA2103082A CA2103082A1 CA 2103082 A1 CA2103082 A1 CA 2103082A1 CA 2103082 CA2103082 CA 2103082 CA 2103082 A CA2103082 A CA 2103082A CA 2103082 A1 CA2103082 A1 CA 2103082A1
- Authority
- CA
- Canada
- Prior art keywords
- lobes
- spinnerette
- spinnerette plate
- manufacture
- arms
- 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.)
- Abandoned
Links
Abstract
Abstract Described is a spinnerette plate for the manufacture of multilobal fibers, comprising at least one opening having a plurality of lobes, each lobe having two ends, one end being connected to the other lopes, the other end of said lobes being V-shaped and comprising two arms.
Description
--~` 21a3~82 .
IN-4544 ;~
A SPINNER~TTE_~L~ FO~ ~EE_~A~E~CrQ~E OF
A MULTILO~AL FIB~R WITH V-SH~P~D ~NDS
Field of ~he Invention The present invention is directed to a spinnerette plate for the manufacture of a multilobal fiber with V-shaped ends for use as carpet yarns.
Backaround of th~_Invention Spinnerette plates for the manufacture of multilobal, in particular trilobal, fibers and filaments are known in the art and have been widely used, especially for the manufacture of carpet yarns. The -~ -fibers manufactured by such spinnerette plates show superior - -properties in bulk and covering power over fibers having round ~;~ ~ ' .~' .. ~"7'. ' ,''~
cross section.
U.S. Pat. No. 3, 19~,002 discloses a multifilament yarn having a non-regular Y-shaped cross section.
V.S. Pat No. 4,648,830 discloses a spinnerette for producing hollow trilobal cross-section filaments. ;~
U.S. Pat. No 5,108,838 discloses the trilobal and tetralobal filaments exhibiting low glitter and high bulko ~he filaments having substantial convex curves.
Disadvantage of the ~ilaments of the prior ar~ is that they can pack together, requiring more fiber use to achieve adequate cover in a carpet.
Express Mail Certificate TB086597599US datea 11/16/92 ,,",, .. ,.1,; "" ".', ~ " ,"."~"", "~ " ;~ " ~ ;" "
:', ;.: i , " ~, " " , " " ., S l~
-. 2l03a~2 Object of the present invention was to provide a spinneretta plate with a simple geometry, which is easy to produce and which allows the manufacture of fibers with a simple cross section, which exhibits good bulk, uneven surface, high dullness, good soil hiding properties and improved color.
Summary o~ the Inv~ntion The object of the present invention could be achieved by a spinnerette plate for the manufacture of multilobal fibers, comprising at least one opening having a plurality of lobes, each -lobe having two ends, one end being connected to the other lobes, the other end of said lobes being V-shaped and comprising two arms.
Description of the Fi~ures .: . . ,. :~:
Fig. 1 is a front view of a trilobal spinnerette capillary of the prior art~
Fig. 1 (a) is a cross-sectional view of a fiber spun by a spinnerette shown in Fig. 1.
Fig. 2 is a front view of a trilobal spinnerette capillary of the present invention comprising a V-shaped end at each lobe.
Fig. 2 (a) is a cross-sectional view of a fiber spun by a spinnerette shown in Fig. 2.
Fig. 3 is a front view of a tetralobal spinnerette capillary of the ~ ;
present invention compxising a V-shaped end at each lobe.; ~;-Fig. 3 (a) is a cross-sectional view of a fiber spun by a ``~ ' 21~3~82 ``
spinnerette shown in Fig. 3.
Detailed Pescri~tion oP the Invention The spinnerette plate of the present invention is suitable for the manufacture of fibers by melt spinning.
Suitable polymers for the production of the fibers of the present invention are all fiber forming thermoplastic materials especially polyamides, polyesters, and polyolefins. Suitable polyamides are nylon 6, nylon 6/6, nylon 6/9, nylon 6/10, nylon 6/12, nylon 11, nylon 12, copolymers thereof and mixtures thereof. -~
Preferred polyamides are nylon 6 and nylon 6/6. A suitable polyester is polyethylene terepthalate.
~he polymer is fed into an extruder in form of chips or granules, melted and directed via DOWTHERM~ (Dow Chemical, Midland, Michigan) heated polymer distribution lines to the spinning head. The polymer melt is then metered by a highly efficient gear pump to a spin pack assembly, and extruded through a spinnerette with capillaries described below.
The spinnerette plate of the present invention has in general at -~
least one multilobal opening, like tri,~ tetra-, penta- or hexalobal capillary, preferably tri- and tetralobal capillary.
The capillary of the spinnerette plate of the present invention is described with reference to Fig. 2 for a trilobal opening:
Lobes (1) (2) and (3) have each two ends, (4), (5); (4), (6) and (4) (7). On one end (4) the lobes are connected and radiating outwardly to the second end of each lobe (5), (6) and ~7), ~hich is V shaped with two arms each (8), (9); (10), (11) and (12) (13).
The angles between the lobes (1), (2) and (3) are from about 100 to - ~ 2ia3~2 ;~ :
~.'`
about 140-, preferably about 120C. Fig. 2 is drawn with round arm ends, but other shapes like rectangular or triangular may also be used.
The dimensions of the different parts of the capillary of the present invention are as follows: The length of the lobes (1) (2) and (3) from one end (4) to the other end (5) (6) and (7) is from about 0.25 to about 1.0 mm, preferably from about 0.4 to about 0.85 mm. The length of the arms from one end (5), (6) and (7) to the other end (8), (9); (10), (11) and (12), (13) is from about 0.2 to about 0.8 mm, preferably from about 0.3 to about 0.7 mm. The diameter of the lobes (1), (2) and (3) and the arms (8), (9); (lO), (11) and (12), (13) are from about 0.04 to about 0.18 mm, -~
preferably from about 0.08 to about 0.12 mm.
.: - .. .. .:. - .
The tetralobal opening in the spinnerette plate according to Fig.
IN-4544 ;~
A SPINNER~TTE_~L~ FO~ ~EE_~A~E~CrQ~E OF
A MULTILO~AL FIB~R WITH V-SH~P~D ~NDS
Field of ~he Invention The present invention is directed to a spinnerette plate for the manufacture of a multilobal fiber with V-shaped ends for use as carpet yarns.
Backaround of th~_Invention Spinnerette plates for the manufacture of multilobal, in particular trilobal, fibers and filaments are known in the art and have been widely used, especially for the manufacture of carpet yarns. The -~ -fibers manufactured by such spinnerette plates show superior - -properties in bulk and covering power over fibers having round ~;~ ~ ' .~' .. ~"7'. ' ,''~
cross section.
U.S. Pat. No. 3, 19~,002 discloses a multifilament yarn having a non-regular Y-shaped cross section.
V.S. Pat No. 4,648,830 discloses a spinnerette for producing hollow trilobal cross-section filaments. ;~
U.S. Pat. No 5,108,838 discloses the trilobal and tetralobal filaments exhibiting low glitter and high bulko ~he filaments having substantial convex curves.
Disadvantage of the ~ilaments of the prior ar~ is that they can pack together, requiring more fiber use to achieve adequate cover in a carpet.
Express Mail Certificate TB086597599US datea 11/16/92 ,,",, .. ,.1,; "" ".', ~ " ,"."~"", "~ " ;~ " ~ ;" "
:', ;.: i , " ~, " " , " " ., S l~
-. 2l03a~2 Object of the present invention was to provide a spinneretta plate with a simple geometry, which is easy to produce and which allows the manufacture of fibers with a simple cross section, which exhibits good bulk, uneven surface, high dullness, good soil hiding properties and improved color.
Summary o~ the Inv~ntion The object of the present invention could be achieved by a spinnerette plate for the manufacture of multilobal fibers, comprising at least one opening having a plurality of lobes, each -lobe having two ends, one end being connected to the other lobes, the other end of said lobes being V-shaped and comprising two arms.
Description of the Fi~ures .: . . ,. :~:
Fig. 1 is a front view of a trilobal spinnerette capillary of the prior art~
Fig. 1 (a) is a cross-sectional view of a fiber spun by a spinnerette shown in Fig. 1.
Fig. 2 is a front view of a trilobal spinnerette capillary of the present invention comprising a V-shaped end at each lobe.
Fig. 2 (a) is a cross-sectional view of a fiber spun by a spinnerette shown in Fig. 2.
Fig. 3 is a front view of a tetralobal spinnerette capillary of the ~ ;
present invention compxising a V-shaped end at each lobe.; ~;-Fig. 3 (a) is a cross-sectional view of a fiber spun by a ``~ ' 21~3~82 ``
spinnerette shown in Fig. 3.
Detailed Pescri~tion oP the Invention The spinnerette plate of the present invention is suitable for the manufacture of fibers by melt spinning.
Suitable polymers for the production of the fibers of the present invention are all fiber forming thermoplastic materials especially polyamides, polyesters, and polyolefins. Suitable polyamides are nylon 6, nylon 6/6, nylon 6/9, nylon 6/10, nylon 6/12, nylon 11, nylon 12, copolymers thereof and mixtures thereof. -~
Preferred polyamides are nylon 6 and nylon 6/6. A suitable polyester is polyethylene terepthalate.
~he polymer is fed into an extruder in form of chips or granules, melted and directed via DOWTHERM~ (Dow Chemical, Midland, Michigan) heated polymer distribution lines to the spinning head. The polymer melt is then metered by a highly efficient gear pump to a spin pack assembly, and extruded through a spinnerette with capillaries described below.
The spinnerette plate of the present invention has in general at -~
least one multilobal opening, like tri,~ tetra-, penta- or hexalobal capillary, preferably tri- and tetralobal capillary.
The capillary of the spinnerette plate of the present invention is described with reference to Fig. 2 for a trilobal opening:
Lobes (1) (2) and (3) have each two ends, (4), (5); (4), (6) and (4) (7). On one end (4) the lobes are connected and radiating outwardly to the second end of each lobe (5), (6) and ~7), ~hich is V shaped with two arms each (8), (9); (10), (11) and (12) (13).
The angles between the lobes (1), (2) and (3) are from about 100 to - ~ 2ia3~2 ;~ :
~.'`
about 140-, preferably about 120C. Fig. 2 is drawn with round arm ends, but other shapes like rectangular or triangular may also be used.
The dimensions of the different parts of the capillary of the present invention are as follows: The length of the lobes (1) (2) and (3) from one end (4) to the other end (5) (6) and (7) is from about 0.25 to about 1.0 mm, preferably from about 0.4 to about 0.85 mm. The length of the arms from one end (5), (6) and (7) to the other end (8), (9); (10), (11) and (12), (13) is from about 0.2 to about 0.8 mm, preferably from about 0.3 to about 0.7 mm. The diameter of the lobes (1), (2) and (3) and the arms (8), (9); (lO), (11) and (12), (13) are from about 0.04 to about 0.18 mm, -~
preferably from about 0.08 to about 0.12 mm.
.: - .. .. .:. - .
The tetralobal opening in the spinnerette plate according to Fig.
3 has four lobes (27), (28), (29) and (30).
On one end (31) the lobes are connected to each other and radiating outwardly, the other end (32), (33), (34) and (35) of each lobe is V-shaped with two arms (36) and (37), (38) and (39), (40) and (41) and (42) and (43).
The angles between the lobes (27), (28), (29) and (30) are from about 80 to 100, preferably about 90. The angles between the arms (36) and (37), (38) and (39), (~0) and (41) and (42) and (43) are from about 100 to about 140, preferably about 120~. Fig. 2 is drawn with arm ends to roun~, but other shapes like rectangular or triangular may also be used.
The dimensions of the different parts of the capillary are :: - . ~
approximately the same as described for the trilobal opening. The ~ --arm ends may be round, rectangular or triangular as described fox the trilobal opening.
2 1 0 3 ~ 8 2 The disclosed dimensions are dependent for example on polymer type, spinning temperature, melt-viscosity of the polymer and quench medium temperature.
` ' The desired "modification ratio" for the resulting filaments is also an important factor. By the term "modification ratio" (MR), it is meant the ratio o~ the radius of a circle which circumscribes the filament cross-section to the radius of the largest circle which can be inscribed within the filament cross-section.
The two circles are shown as dotted lines in Fig. 2a. The dimensions in the capillaries of the spinnerette plate are chosen, that the MR for the cross-section of the resulting fiber is from about 2 to about 5, preferably from about 3 to about 4.
The respective polymer is extruded through the capillary of the spinnerette plate described in Fig. 2 or Fig. 3 to form a fiber having a cross-section described in Fig. 2a or Fig. 3a.
The trilobal cross-section of the fiber according to Fig. 2a has three lobes (14), (15) and (16) with two ends (17) and (18), (19) and (20). On one end (17) the three lobes are connected to each other and radiating outwardly to the other end of each lobe (18), (19) and (20), which is V-shaped with two arms (21) and (22), (23) and (24) and (25) and (26). ~ach of the V-shaped arms ideally are shaped, like the filament of Fig. 2a. Fig. 2a is drawn with round arm ends, but other shapes like rectangular or triangular may be used.
The tetralobal cross-section of the ~iber according to Fig. 3(a) has four lobes (44), (45), (46) and (47) with two ends (4~) and (49), (50) (51) and (52). On one end (48) the lobes are connected to each other and radiating outwardly to the other end of each lobe (49), (50), (51) and (52), which is V-shaped with two arms (53) and (54), (55) and (56) (57) and (58) and (59) and (60).
-- 2~3a82 The modification ratio (MR) for the trilobal cross-section is from about 2 to about 5, preferably from about 3 to about 4 The MR for the tetralobal cross section is from about 2 to about 5, preferably from about 3 to about 4.
.. ~ ' The spinnerette plate of the present invention has from about 30 to about 300 openings in form of the capillaries, described above, preferably from about 50 to about 200. In case of the manufacture of staple fibers the spinnerette plate has from 30 to 500 openings, preferably from about 100 to about 300.
The extruded fibers or filaments are quenched for example with air in order to solidify the filaments. The filaments are then treated with a finish comprising a lubricating oil or mixture of oils and antistatic and antisailing agents. The filaments are then combined to form a yarn bundle which is then wound onto a suitable package.
In a subsequent step, the yarn is drawn and texturized to form a bulked continuous filament (BCF) yarn suitable for tufting into carpets. A more preferred technique involves combining the extruded or as-spun filaments into a yarn, then drawing, texturizing and winding a package, all in a single step. This one~
step method of making 8CF is referred to in the trade as spin-draw-texturing. The manufacture of staple fibers is also included in the scope of the present invention.
Nylon filaments for the purpose of carpet manufacturing have deniers (denier = weight in grams of 9000 meters of yarn) in the range of about 3 to 75 denier/filament (dpf). A more preferred range for carpet fibers is from about 15 to 25 dpf.
. ~ . .
From here, the BCF yarns can go through various processing steps well known to those skilled in the art. ~he fibers of this invention are particularly useful in the manufacture of carpets for --` 21~3~82 i i . .
floor covering applications.
To produce carpets for floor covering applications, the BCF yarns are generally tufted into a pliable primary backing. Primary backing materials are generally selected from the group comprising conventional woven jute, woven polypropylene, cellulosic nonwovens, and nonwovens of nylon, polyester, and polypropylene. The primary backing is then coated with a suitable latex material such as a conventional styrene-butadiene latex, vinylidene chloride polymer, or vinyl chloride-vinylidene chloride copolymers. It is common practice to use fillers such as calcium carbonate to reduce latex costs. The final step is to apply a secondary backing, generally a woven jute or woven synthetic such as polypropylene.
Fibers with a cross section according to the invention have greater cover or lower bulk density, because they cannot be packed more tightly together than the trilobal fibers of the prior art.
The less-packing geometry of the new cross sections also offer more void space, thus more shadows and decreased luster of the carpet fibers. Light entering the fixed voids defined by the geometric shape has more difficulty reflecting to the observer without striking one of the filament arms which are rigidly held in position in the cross section.
Example 1~
Nylon 6 (relative viscosity R.V. = 2.68) bulked continuous filament yarns were produced using conditions shown in Table 1 and a spinnerette having a cross section shown in Fig. 2 with the following dimensions:
Length of the lobes (1), (2) and (3): 0.5 mm Length of the arms (8), (9), (10), (11), (12) and (13): 0.41 mm ;- ". . ~ ,; ~:, . . : . . ., ., , . , , , . . : , `;-` 2~030~2 `` 1 Diameter of the lobes and arms: 0.12 mm Angle between the lobes: 120-The molten polymer was extruded, solidified in a quench zone and the undrawn yarn wound onto a package. The undrawn yarn was then drawbulked. The yarn was drawn between two rolls (second roll-heated). A heated draw pin was used between the two rolls. After drawing, the yarns were bulked (textured ) with a steam jet and wound on a package.
A control yarn (2.9 MR symmetric trilobal) was processed in a similar manner. Tufted, heatset carpets (Superba) made from yarn having the sectiol~ of the present invention exhibited higher bulk, less luster and improved uniformity when compared to the control yarn (Table 2).
"' ' .". .', ~.'.,: '~', ' ~, i i`: ~
- ~-` 21~3~82 . ..
Table 1 ~xample 1 Control Polymer RV (96% 2.68 2.68 Sulfuric acid) `
Spinning Temp~, C 270 270 ~lowbox Air Volume, 240 160 CFM
Spinning Speed, 500 500 meters/min.
Polymer Output, 156 156 `
g~mln.
Finish on yarn, % -1.5 -1.5 Drawbulking Speed, 1500 1500 m/min.
Draw Ratio 3.1:1 3.1:1 Hot Pin Temp., C 90 90 ~;
Steam Jet Temp., C 210 210 Steam Jet Press., 75 75 psig -t 2 ~ a 3 0 8 2 able.2 E~mple 1 Control Denier (filaments) 1146 (6.8) 1135 (68) . -.
Tenacity, gms/den. 2.45 2.38 .
% Elongation 49.6 55.2 .
% Wet 8ulk 11.9 11.7 % 80iling Water 3.4 3-9 .
Shrinkage Modification Ratio 3.37 2.9 Cylinder Bulk 4.87 4.69 cc./gm.
Carpet Evaluation Example 1 Control ~. :.:.~.. :
Luster (1 = 6 5 . --~
brightest; 10 =
dullest) Bulk (1 = least; 10 7.0 6.5 -~
= most) Uniformity (1 = 7.0 5 5 .
least: 10 = best) ~,: ~:''' .~
, , ~ ~
,~
~ I . ~ ~ .' ~, ' ! , . i, ' ' , ~, ,
On one end (31) the lobes are connected to each other and radiating outwardly, the other end (32), (33), (34) and (35) of each lobe is V-shaped with two arms (36) and (37), (38) and (39), (40) and (41) and (42) and (43).
The angles between the lobes (27), (28), (29) and (30) are from about 80 to 100, preferably about 90. The angles between the arms (36) and (37), (38) and (39), (~0) and (41) and (42) and (43) are from about 100 to about 140, preferably about 120~. Fig. 2 is drawn with arm ends to roun~, but other shapes like rectangular or triangular may also be used.
The dimensions of the different parts of the capillary are :: - . ~
approximately the same as described for the trilobal opening. The ~ --arm ends may be round, rectangular or triangular as described fox the trilobal opening.
2 1 0 3 ~ 8 2 The disclosed dimensions are dependent for example on polymer type, spinning temperature, melt-viscosity of the polymer and quench medium temperature.
` ' The desired "modification ratio" for the resulting filaments is also an important factor. By the term "modification ratio" (MR), it is meant the ratio o~ the radius of a circle which circumscribes the filament cross-section to the radius of the largest circle which can be inscribed within the filament cross-section.
The two circles are shown as dotted lines in Fig. 2a. The dimensions in the capillaries of the spinnerette plate are chosen, that the MR for the cross-section of the resulting fiber is from about 2 to about 5, preferably from about 3 to about 4.
The respective polymer is extruded through the capillary of the spinnerette plate described in Fig. 2 or Fig. 3 to form a fiber having a cross-section described in Fig. 2a or Fig. 3a.
The trilobal cross-section of the fiber according to Fig. 2a has three lobes (14), (15) and (16) with two ends (17) and (18), (19) and (20). On one end (17) the three lobes are connected to each other and radiating outwardly to the other end of each lobe (18), (19) and (20), which is V-shaped with two arms (21) and (22), (23) and (24) and (25) and (26). ~ach of the V-shaped arms ideally are shaped, like the filament of Fig. 2a. Fig. 2a is drawn with round arm ends, but other shapes like rectangular or triangular may be used.
The tetralobal cross-section of the ~iber according to Fig. 3(a) has four lobes (44), (45), (46) and (47) with two ends (4~) and (49), (50) (51) and (52). On one end (48) the lobes are connected to each other and radiating outwardly to the other end of each lobe (49), (50), (51) and (52), which is V-shaped with two arms (53) and (54), (55) and (56) (57) and (58) and (59) and (60).
-- 2~3a82 The modification ratio (MR) for the trilobal cross-section is from about 2 to about 5, preferably from about 3 to about 4 The MR for the tetralobal cross section is from about 2 to about 5, preferably from about 3 to about 4.
.. ~ ' The spinnerette plate of the present invention has from about 30 to about 300 openings in form of the capillaries, described above, preferably from about 50 to about 200. In case of the manufacture of staple fibers the spinnerette plate has from 30 to 500 openings, preferably from about 100 to about 300.
The extruded fibers or filaments are quenched for example with air in order to solidify the filaments. The filaments are then treated with a finish comprising a lubricating oil or mixture of oils and antistatic and antisailing agents. The filaments are then combined to form a yarn bundle which is then wound onto a suitable package.
In a subsequent step, the yarn is drawn and texturized to form a bulked continuous filament (BCF) yarn suitable for tufting into carpets. A more preferred technique involves combining the extruded or as-spun filaments into a yarn, then drawing, texturizing and winding a package, all in a single step. This one~
step method of making 8CF is referred to in the trade as spin-draw-texturing. The manufacture of staple fibers is also included in the scope of the present invention.
Nylon filaments for the purpose of carpet manufacturing have deniers (denier = weight in grams of 9000 meters of yarn) in the range of about 3 to 75 denier/filament (dpf). A more preferred range for carpet fibers is from about 15 to 25 dpf.
. ~ . .
From here, the BCF yarns can go through various processing steps well known to those skilled in the art. ~he fibers of this invention are particularly useful in the manufacture of carpets for --` 21~3~82 i i . .
floor covering applications.
To produce carpets for floor covering applications, the BCF yarns are generally tufted into a pliable primary backing. Primary backing materials are generally selected from the group comprising conventional woven jute, woven polypropylene, cellulosic nonwovens, and nonwovens of nylon, polyester, and polypropylene. The primary backing is then coated with a suitable latex material such as a conventional styrene-butadiene latex, vinylidene chloride polymer, or vinyl chloride-vinylidene chloride copolymers. It is common practice to use fillers such as calcium carbonate to reduce latex costs. The final step is to apply a secondary backing, generally a woven jute or woven synthetic such as polypropylene.
Fibers with a cross section according to the invention have greater cover or lower bulk density, because they cannot be packed more tightly together than the trilobal fibers of the prior art.
The less-packing geometry of the new cross sections also offer more void space, thus more shadows and decreased luster of the carpet fibers. Light entering the fixed voids defined by the geometric shape has more difficulty reflecting to the observer without striking one of the filament arms which are rigidly held in position in the cross section.
Example 1~
Nylon 6 (relative viscosity R.V. = 2.68) bulked continuous filament yarns were produced using conditions shown in Table 1 and a spinnerette having a cross section shown in Fig. 2 with the following dimensions:
Length of the lobes (1), (2) and (3): 0.5 mm Length of the arms (8), (9), (10), (11), (12) and (13): 0.41 mm ;- ". . ~ ,; ~:, . . : . . ., ., , . , , , . . : , `;-` 2~030~2 `` 1 Diameter of the lobes and arms: 0.12 mm Angle between the lobes: 120-The molten polymer was extruded, solidified in a quench zone and the undrawn yarn wound onto a package. The undrawn yarn was then drawbulked. The yarn was drawn between two rolls (second roll-heated). A heated draw pin was used between the two rolls. After drawing, the yarns were bulked (textured ) with a steam jet and wound on a package.
A control yarn (2.9 MR symmetric trilobal) was processed in a similar manner. Tufted, heatset carpets (Superba) made from yarn having the sectiol~ of the present invention exhibited higher bulk, less luster and improved uniformity when compared to the control yarn (Table 2).
"' ' .". .', ~.'.,: '~', ' ~, i i`: ~
- ~-` 21~3~82 . ..
Table 1 ~xample 1 Control Polymer RV (96% 2.68 2.68 Sulfuric acid) `
Spinning Temp~, C 270 270 ~lowbox Air Volume, 240 160 CFM
Spinning Speed, 500 500 meters/min.
Polymer Output, 156 156 `
g~mln.
Finish on yarn, % -1.5 -1.5 Drawbulking Speed, 1500 1500 m/min.
Draw Ratio 3.1:1 3.1:1 Hot Pin Temp., C 90 90 ~;
Steam Jet Temp., C 210 210 Steam Jet Press., 75 75 psig -t 2 ~ a 3 0 8 2 able.2 E~mple 1 Control Denier (filaments) 1146 (6.8) 1135 (68) . -.
Tenacity, gms/den. 2.45 2.38 .
% Elongation 49.6 55.2 .
% Wet 8ulk 11.9 11.7 % 80iling Water 3.4 3-9 .
Shrinkage Modification Ratio 3.37 2.9 Cylinder Bulk 4.87 4.69 cc./gm.
Carpet Evaluation Example 1 Control ~. :.:.~.. :
Luster (1 = 6 5 . --~
brightest; 10 =
dullest) Bulk (1 = least; 10 7.0 6.5 -~
= most) Uniformity (1 = 7.0 5 5 .
least: 10 = best) ~,: ~:''' .~
, , ~ ~
,~
~ I . ~ ~ .' ~, ' ! , . i, ' ' , ~, ,
Claims (12)
1. A spinnerette plate for the manufacture of multilobal fibers, comprising at least one opening having a plurality of lobes, each lobe having two ends, one end being connected to the other lobes, the other end of said lobes being V-shaped and comprising two arms.
2. The spinnerette plate according to claim 1, wherein said lobes radiating outwardly.
3. The spinnerette plate according to claim 1, wherein said opening has three lobes.
4. The spinnerette plate according to claim 1, wherein said opening has four lobes.
5. The spinnerette plate according to claim 3, wherein an angle between said lobes is from about 70 to about 140°.
6. The spinnerette plate according to claim 5, wherein the angle is from about 110 to about 130°.
7. The spinnerette plate according to claim 6, wherein the angle is approximately 120°.
8. The spinnerette plate according to claim 4, wherein an angle between said lobes is from about 70 to about 140°.
9. The spinnerette plate according to claim 8, wherein the angle is from about 80 to about 100°.
10. The spinnerette plate according to claim 9, wherein the angle is approximately 90°.
11 11. The spinnerette plate according to claim 1, wherein said lobes have a length of from about 0.25 to about 1.0 mm, said arms have a length of from about 0.2 to about 0.8 mm and said lobes and said arms have a diameter of from about 0.04 to about 0.18 mm.
12. The spinnerette according to claim 11, wherein the length of the lobes is from about 0.4 to about 0.85 mm, the length of the arms is from about 0.3 to about 0.7 mm and the diameter of the lobes and arms is from about 0.08 to about 0.12 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97681492A | 1992-11-16 | 1992-11-16 | |
| US976,814 | 1992-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2103082A1 true CA2103082A1 (en) | 1994-05-17 |
Family
ID=25524499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2103082 Abandoned CA2103082A1 (en) | 1992-11-16 | 1993-11-15 | Spinnerette plate for the manufacture of a multilobal fiber with v-shaped ends |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2103082A1 (en) |
-
1993
- 1993-11-15 CA CA 2103082 patent/CA2103082A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0530489B1 (en) | Trilobal and tetralobal filaments exhibiting low glitter and high bulk | |
| US6017478A (en) | Method of making hollow bicomponent filaments | |
| CA2208494C (en) | Polyamide/polyolefin bicomponent fibers and methods of making same | |
| AU2001266607B2 (en) | Multilobal polymer filaments and articles produced therefrom | |
| US5208106A (en) | Trilobal and tetralobal filaments exhibiting low glitter and high bulk | |
| US5380592A (en) | Trilobal and tetralobal cross-section filaments containing voids | |
| MXPA97007067A (en) | Two-component polyamide / polyolefine fibers, novedosas and methods for elaborating | |
| US5176926A (en) | Spinnerets for producing trilobal and tetralobal filaments exhibiting low glitter and high bulk | |
| CA2105098C (en) | Multilobal fiber with projections on each lobe for carpet yarns | |
| CA2105099C (en) | Spinnerette plate for the manufacture of multilobal fibers with projections on each lobe | |
| US5512367A (en) | Mixed cross-section carpet yarn | |
| US6841247B2 (en) | Fibers having improved dullness and products containing the same | |
| US5413857A (en) | Mixed cross-section carpet yarn | |
| AU690915B2 (en) | Fiber bilobal cross sections and carpets prepared therefrom having a silk-like luster and soft hand | |
| AU722298B2 (en) | Multiple domain fibers and methods of making the same | |
| CA1123280A (en) | Continuous filament yarn with wool-like hand | |
| EP0601372B1 (en) | Mixed cross-section carpet yarn | |
| CA2103082A1 (en) | Spinnerette plate for the manufacture of a multilobal fiber with v-shaped ends | |
| CA2103081A1 (en) | Multilobal fiber with v-shaped ends for carpet yarns | |
| EP0595157B1 (en) | A multilobal fiber with projections on each lobe for carpet yarns and spinnerette plate for their manufacture | |
| US3616633A (en) | Tetralobal synthetic filament process for producing the same and article made therefrom | |
| CA1108832A (en) | Wool-like yarn with moisture transport | |
| EP1518948A1 (en) | Multilobal polymer filaments and articles produced therefrom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |