WO2013192421A2 - Filament de fil et son procédé de fabrication - Google Patents
Filament de fil et son procédé de fabrication Download PDFInfo
- Publication number
- WO2013192421A2 WO2013192421A2 PCT/US2013/046818 US2013046818W WO2013192421A2 WO 2013192421 A2 WO2013192421 A2 WO 2013192421A2 US 2013046818 W US2013046818 W US 2013046818W WO 2013192421 A2 WO2013192421 A2 WO 2013192421A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filament
- void
- lobe
- cross
- yarn
- Prior art date
Links
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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- 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
-
- 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
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2975—Tubular or cellular
Definitions
- the invention relates in general to synthetic polymeric fibrous materials.
- this invention relates to a hollow trilobal cross-section filament for use as carpet yarn, and to a spinnerette for its manufacture.
- cover For many uses of fibrous synthetic polymers, it is desirable to minimize the weight of fiber needed to spread over an area. This qualitative property of a fiber is known as "cover”. Another quality of fibers for certain end uses (like for carpet yarn) is the fiber's ability to hide soil. While desireable to obtain high cover and good soil hiding, it is also desireable to control the degree of luster. For example, carpet yarns should provide the greatest cover and hide soil well, yet retain a desired degree of luster.
- Trilobal fibers are known to provide cover superior to round cross- sections and it is known to make trilobal and pseudo-trilobal filaments (e.g., deltas, T- shapes).
- Exemplary are U.S. Pat. No. 3,981,948 to Phillips, U.S. Pat. No. 3, 194,002 to Raynolds et at, U.S. Pat. No. 2,939,201 to Holland, U.S. Pat. No. 4,492,731 to Bankar et al. and Japanese Kokai 42-22574.
- the filament described herein has improved bulk, cover and resistance to a luster change as a result of wear.
- the filament comprises a trilobal filament having at least one axially extending void, preferably one axially extending void in each lobe.
- each lobe can have a partial curved cross-sectional profile having a partial elliptical-shaped profile that has a major axis to minor axis ratio of between about 1.04 : 1 to about 1.12 : 1.
- each axially extending void will have an elliptical-shape having a major axis that is substantially co-axial with the major axis of the respective lobe.
- the cross-section can have a modification ratio of 1.7 to 2.2 and the total cross-sectional area can be between about 7 to 13 percent void.
- the filament can be used as a carpet yarn.
- a spinnerette for producing such a filament can comprise at least one bore group, in which each bore group has three legs divergent from each other by 130° to 150°.
- each leg can include two substantially parallel capillary sections extending to an end section that has a shoulder that extends inwardly toward a central axis of the capillary sections.
- Exemplary suitable synthetic polymers comprise polyamides, such as nylon 66 and nylon 6, polyesters, such as polyethylene terephthalate and
- polytrimethylene terephthalate polytrimethylene terephthalate
- polyolefins such as polypropylene
- the filaments can be in the form of a continuous filament yarn, a crimped continuous filament yarn, a staple fiber yarn, or a crimped staple fiber yarn.
- Figure 1 is an enlarged top view of a single spinneret capillary, showing at least one bore group, in which each bore group has three legs divergent from each other by 100° to 130°.
- Figures 2A and 2B are cross-sectional views of exemplary filaments spun through a spinneret capillary of the type shown in Figure 1.
- Figure 3 is a photograph showing the cross-sectional view of a plurality of filaments spun through a spinneret capillary of the type shown in Figure 1.
- Ranges can be expressed herein as from “about” one particular value, and/or to "about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
- filament includes a polymer or copolymer which has been formed into an article of a running or extremely long length and which is known conventionally as a continuous filament, or a polymer or copolymer which has been formed into an article of a running or extremely long length and then cut or chopped into shorter lengths, which is known conventionally as staple.
- Modification ratio is a well known measure of the cross-section of a trilobal filament and is defined, for example, in U.S. Pat. No 4,492,731, incorporated herein by reference, and Patent No. EP-A-0 516, 119. As shown in Figure 2B, "modification ratio” means the ratio of the radius I3 ⁇ 4 of the circumscribed circle to the radius Ri of the inscribed circle.
- the cross-section of the filament of the present invention has a modification ratio of 1.5 to 2.4, preferably at least 2.0, and more preferably 1.7 to 2.2.
- the filaments 50 of this invention are generally prepared by conventional spinning molten polymer or polymer solutions through spinneret capillaries 10 which are designed to provide the desired cross-section of the filament.
- the filaments can be formed from synthetic, thermoplastic polymers that are melt-spinnable.
- polymers can comprise, for example and without limitation, polyolefins such as polypropylene (PP), polyamides such as polyhexamethylenediamine adipamide (nylon 66) and polycaprolactam (nylon 6), polyesters such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), and polyesters of other monomers, and acrylics such as poly(methyl methacrylate) (PMMA).
- polyolefins such as polypropylene (PP), polyamides such as polyhexamethylenediamine adipamide (nylon 66) and polycaprolactam (nylon 6)
- polyesters such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), and polyesters of other monomers, and acrylics such as poly(methyl methacrylate) (PMMA).
- the molten polymer is extruded into air or other gas, or into a suitable liquid, where it is cooled and solidified.
- suitable quenching gasses and liquids can include, for example and without limitation, air at room temperature, chilled air, and water.
- the polymer solution can be extruded as a continuous stream into a heated chamber to remove the solvent and to thereby form a solid filament. It is recognized that the specific spinning conditions, e.g., viscosity, rate of extrusion, quenching, etc. will vary depending upon the polymer used.
- the polymer spinning dopes may also contain conventional additives, such as antioxidants, dyes, pigments, antistatic agents, ultraviolet (UV) stabilizers, and the like.
- a spinneret capillary 10 for forming the filaments of this invention is illustrated.
- a spinneret orifice 15 or bore group is defined in a planar member 12 that is suitable for melt spinning a filament-forming polymeric material therethrough.
- a spinnerette for producing a filament comprising at least one bore group20.
- each bore group 20 can have three leg sections 25 that are divergent from each other an angle a that ranges from about 100° to about 130° and each leg section 25 can include two substantially parallel long leg capillary sections extending to an end section 30 having a shoulder capillary section 35 that extends inwardly toward a central axis of the long leg capillary sections.
- each bore group can define three "Y" shaped holes 1, 1 ' and 1 ", each Y shaped hole being defined by a pair of angularly opposed long legs 2, 2" (the “long leg capillary sections") and a short leg 3.
- the angle a between the pair of angularly opposed long legs 2, 2" is preferably about 120° and the angle between each of the angularly opposed long legs 2, 2" and the short leg is preferably about 120°.
- Each long leg 2 defines a shoulder capillary section at the distal end of the long leg that is positioned substantially transverse to the elongate axis of the leg.
- the shoulder capillary sections of the two substantially parallel long leg capillary sections are positioned substantially co-axial to each other and extend inwardly toward a central axis of the long leg capillary sections.
- each lobe 54 can have a partial curved cross- sectional profile having a partial elliptical-shaped that has a major axis to minor axis ratio of between about 1.04 : 1 to about 1.12 : 1. It is also contemplated that each elongated void 52 will have an elliptical-shape having a major axis that is oriented with respect to the major axis of the respective lobe.
- the cross-section can have a modification ratio of 1.5 to 2.4, preferably at least 2.0, and more preferably 1.7 to 2.2 and the total cross-sectional area can be between about 5 to 15 percent void, preferably about 6 to 14 percent void, and more preferably about 7 to 13 percent void.
- the filament will define three elliptical-shaped voids 52 having a major axis and a minor axis.
- the filament 50 can comprise one void 52 in each lobe 54.
- each lobe 54 has a pair of spaced foci and each axially extending void has a pair of spaced foci.
- one foci of the lobe and one foci of the axially extending void can be positioned in substantially the same cross-sectional position or, optionally, in close cross sectional position.
- the major axis of at least one of the elliptical-shaped voids 52 is oriented at an angle ⁇ with respect to the major axis of the respective lobe 54 in which the void is positioned. It is also contemplated that the major axis of at least one of the elliptical-shaped voids 52 is oriented at an angle ⁇ with respect to the major axis of the respective lobe 54 in which the void is positioned. It is
- the angle ⁇ can range from between about 0 degrees (substantially co-axial) to about 60 degrees, and preferably from between about 0 degrees to about 45 degrees.
- each of the elliptical-shaped voids is oriented at an angle ⁇ with respect to the major axis of the respective lobe in which the void is positioned.
- at least one or more of the angle ⁇ differ for each elongated void. For example, and without limitation, as shown in Figure 4, the angle ⁇ for all of the elongated voids are different.
- the filaments 50 can be prepared by known methods of spinning filaments. Molten polymer can be spun through spinneret orifices shaped to provide the desired void volume and filament cross-sections under spinning conditions which give the desired denier. Specific spinning conditions and spinneret orifices, shapes and dimensions will vary depending upon the particular polymer and filament product being spun.
- a spinnerette 10 can be drilled with multiple filament bore groups, in which the central axis of the long leg capillary sections of one leg section of each filament forming bore group as described in Figure 1 and above is oriented toward a peripheral quench source.
- nylon 6 (polycaprolactam) polymer can be extruded at normal conventional spinning conditions into a quench stack and drawn, taken up onto the package where it is further processed into typical carpet yarn. This carpet yarn is then tufted into a carpet using conventional tufting methods and the face yarn of the carpet is observed to have improved apparent bulk, soil hiding and reduced luster change with wear.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
La présente invention concerne un filament trilobé présentant au moins un vide s'étendant axialement, de préférence un vide allongé dans chaque lobe, chaque lobe présentant un profil de forme partiellement elliptique présentant un grand axe sur petit axe compris entre environ 1,04 : 1 et environ 1,12 : 1, la section transversale présentant un rapport de modification de 1,7 à 2,2, et la section transversale totale représente 7 à 13 pour cent du vide. Selon un autre aspect, la présente invention concerne une filière permettant de produire un filament comprenant au moins un groupe de nid. Chaque groupe de nid présentant trois sections pieds qui sont divergentes les unes des autres de 100° à 130° et chaque section pied comprend deux sections capillaires de pied longues sensiblement parallèles s'étendant à une section d'extrémité présentant un épaulement qui s'étend vers l'intérieur vers un axe central des sections capillaires de pied longues.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261662208P | 2012-06-20 | 2012-06-20 | |
US61/662,208 | 2012-06-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2013192421A2 true WO2013192421A2 (fr) | 2013-12-27 |
WO2013192421A3 WO2013192421A3 (fr) | 2014-02-20 |
Family
ID=49769701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2013/046818 WO2013192421A2 (fr) | 2012-06-20 | 2013-06-20 | Filament de fil et son procédé de fabrication |
Country Status (2)
Country | Link |
---|---|
US (1) | US20130344331A1 (fr) |
WO (1) | WO2013192421A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016009732A1 (de) | 2015-09-24 | 2017-03-30 | Oerlikon Textile Gmbh & Co. Kg | Spinndüse |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11692284B2 (en) | 2016-08-18 | 2023-07-04 | Aladdin Manufacturing Corporation | Trilobal filaments and spinnerets for producing the same |
USD841838S1 (en) | 2016-11-04 | 2019-02-26 | Mohawk Industries, Inc. | Filament |
US10982383B2 (en) | 2017-04-05 | 2021-04-20 | Columbia Insurance Company | Floor coverings and floor covering systems and methods of making and installing same |
CN107190617A (zh) | 2017-06-30 | 2017-09-22 | 青岛青禾人造草坪股份有限公司 | 仿天然草的人造草坪 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2939201A (en) * | 1959-06-24 | 1960-06-07 | Du Pont | Trilobal textile filament |
GB1017137A (en) * | 1963-01-07 | 1966-01-19 | Monsanto Co | Novel trilobal synthetic textile filaments and spinnerets for production thereof |
US4492731A (en) * | 1982-11-22 | 1985-01-08 | E. I. Du Pont De Nemours And Company | Trilobal filaments exhibiting high bulk and sparkle |
US5322736A (en) * | 1993-06-24 | 1994-06-21 | Alliedsignal Inc. | Hollow-trilobal cross-section filaments |
US5380592A (en) * | 1993-12-28 | 1995-01-10 | E. I. Du Pont De Nemours And Company | Trilobal and tetralobal cross-section filaments containing voids |
US20030157319A1 (en) * | 2002-02-11 | 2003-08-21 | Boyle John B. | Soft hand, low luster, high body carpet filaments |
US20040170836A1 (en) * | 2003-01-07 | 2004-09-02 | The Procter & Gamble Company | Hollow fiber fabrics |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1184448B (de) * | 1956-10-30 | 1964-12-31 | Trikotfabriken J Schiesser A G | Kuenstlicher Hohlfaden und Spinnkopf zu seiner Herstellung |
-
2013
- 2013-06-20 US US13/922,967 patent/US20130344331A1/en not_active Abandoned
- 2013-06-20 WO PCT/US2013/046818 patent/WO2013192421A2/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2939201A (en) * | 1959-06-24 | 1960-06-07 | Du Pont | Trilobal textile filament |
GB1017137A (en) * | 1963-01-07 | 1966-01-19 | Monsanto Co | Novel trilobal synthetic textile filaments and spinnerets for production thereof |
US4492731A (en) * | 1982-11-22 | 1985-01-08 | E. I. Du Pont De Nemours And Company | Trilobal filaments exhibiting high bulk and sparkle |
US5322736A (en) * | 1993-06-24 | 1994-06-21 | Alliedsignal Inc. | Hollow-trilobal cross-section filaments |
US5380592A (en) * | 1993-12-28 | 1995-01-10 | E. I. Du Pont De Nemours And Company | Trilobal and tetralobal cross-section filaments containing voids |
US20030157319A1 (en) * | 2002-02-11 | 2003-08-21 | Boyle John B. | Soft hand, low luster, high body carpet filaments |
US20040170836A1 (en) * | 2003-01-07 | 2004-09-02 | The Procter & Gamble Company | Hollow fiber fabrics |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016009732A1 (de) | 2015-09-24 | 2017-03-30 | Oerlikon Textile Gmbh & Co. Kg | Spinndüse |
Also Published As
Publication number | Publication date |
---|---|
WO2013192421A3 (fr) | 2014-02-20 |
US20130344331A1 (en) | 2013-12-26 |
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