WO2021203027A1 - Filaments de type ruban et leurs systèmes et procédés de production - Google Patents

Filaments de type ruban et leurs systèmes et procédés de production Download PDF

Info

Publication number
WO2021203027A1
WO2021203027A1 PCT/US2021/025620 US2021025620W WO2021203027A1 WO 2021203027 A1 WO2021203027 A1 WO 2021203027A1 US 2021025620 W US2021025620 W US 2021025620W WO 2021203027 A1 WO2021203027 A1 WO 2021203027A1
Authority
WO
WIPO (PCT)
Prior art keywords
melt
perimetrical
spun
sections
spun filament
Prior art date
Application number
PCT/US2021/025620
Other languages
English (en)
Inventor
Anthony CASCIO
Original Assignee
Aladdin Manufacturing Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aladdin Manufacturing Corporation filed Critical Aladdin Manufacturing Corporation
Publication of WO2021203027A1 publication Critical patent/WO2021203027A1/fr
Priority to US17/957,602 priority Critical patent/US20230045733A1/en

Links

Classifications

    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/06—Distributing spinning solution or melt to spinning nozzles
    • 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
    • D01D5/08—Melt spinning methods
    • 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
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • Triblobal and round shaped filaments provide a soft hand feel, but these filaments are prone to breaking during processing. Rectangular shaped filaments have a less soft hand feel but are less prone to breaking during processing. Thus, there is a need in the art for a filament that provides the soft hand feel of trilobal and round shaped filaments but has the durability of rectangular shaped filaments.
  • a melt-spun filament has a radial cross section that has two substantially parallel linear perimetrical sections and first and second curved perimetrical sections.
  • the first curved perimetrical section extends between first ends of the linear perimetrical sections, and the second curved perimetrical section extends between second ends of the linear perimetrical sections.
  • the curved perimetrical sections are convex.
  • the radial cross section is capsule shaped.
  • the radial cross section is rice shaped.
  • a plane extends axially through the melt-spun filament, intersects the curved perimetrical ends, and includes a central axis of the filament, and a line that is tangential to one of the ends of the linear perimetrical sections intersects the plane at an angle of between 0° and 10°.
  • the melt-spun filament further comprises a core and a sheath disposed around the core.
  • the core is formed from a first material
  • the sheath is formed from a second material.
  • the first material and the second material are different.
  • the first material and the second material are selected from different types of polymers and/or different resin grades (e.g., virgin or reclaim).
  • the first material and second material are selected from the group consisting of polytrimethylene terephthalate (PTT), polyethylene terephthalate (PET), polyamides (PA), and polyolefins.
  • Example polyamides include nylon 6 and nylon 6,6.
  • Example polyolefins include polypropylene (PP) and polyethylene (PE).
  • the first or second material may include a polyolefin and a carbon filler to produce an antistatic yarn.
  • the melt-spun filament further comprises a first material and a second material.
  • the first material and second material are coupled along a plane that includes the axis of the filament, and the first material and second material have different coefficients of thermal expansion.
  • the first material and the second material are selected from the group consisting of polytrimethylene terephthalate (PTT), polyethylene terephthalate (PET), polyamides (PA), and polyolefins.
  • Example polyamides include nylon 6 and nylon 6,6.
  • Example polyolefins include polypropylene (PP) and polyethylene (PE).
  • the first or second material may include a polyolefin and a carbon filler to produce an antistatic yarn.
  • the filament comprises a thermoplastic material.
  • a width to height ratio of the radial cross section of the filament is between 3.5:1 and 1.5:1, wherein the width is measured in a direction of the linear perimetrical sections at the widest points of the radial cross section and the height is measured in a direction perpendicular to the width direction.
  • the width to height ratio of the radial cross section is between 3:1 and 2.2:1.
  • the curved perimetrical sections are semi-circular.
  • the curved perimetrical sections are semi-elliptical.
  • the melt-spun filament is converted into a plurality of staple fibers.
  • a spun yarn of the staple fibers is provided.
  • a bundle of filaments comprising a plurality of the melt-spun filaments is provided.
  • a filament yarn comprising a plurality of the melt-spun filaments is provided.
  • a bulked continuous filament yarn comprising a plurality of the melt-spun filaments is provided.
  • a spinneret plate for producing the melt-spun filament.
  • the spinneret plate comprises one or more capillaries, and each capillary has a rectangular shaped outlet opening.
  • a method of making the melt-spun filament includes (1) providing a spinneret plate comprising one or more capillaries, each capillary having a rectangular shaped outlet opening; and (2) feeding at least one melted thermoplastic polymer through the capillary.
  • FIG. 1 illustrates a radial cross section view of a melt-spun filament according to one implementation.
  • FIG. 2 illustrates a perspective view of the melt-spun filament shown in FIG. 1.
  • FIGS. 3A and 3B illustrate radial cross section views of a plurality of melt-spun filaments spun from a spinneret having a spin slot aspect ratio of 6:1.
  • FIG. 3A shows filaments spun from a spinneret having 87 holes and a denier per filament of 3.8.
  • FIG. 3B shows filaments spun from a spinneret having 120 holes and a denier per filament of 2.8.
  • FIGS. 4A and 4B illustrate radial cross section views of a plurality of melt-spun filaments spun from a spinneret having a spin slot aspect ratio of 4:1.
  • FIG. 4A shows filaments spun from a spinneret having 87 holes and a denier per filament of 3.8.
  • FIG. 4B shows filaments spun from a spinneret having 120 holes and a denier per filament of 2.8.
  • FIG. 5A illustrates a radial cross section view of a capillary in a spinneret plate having a spin slot aspect ratio of 4:1
  • FIG. 5B illustrates an axial view of the capillary, according to one implementation
  • FIG. 5C illustrates a plan view of a portion of a spinneret plate defining a plurality of the capillaries shown in FIGS. 5A and 5B.
  • FIG. 6A illustrates a radial cross section view of a capillary in a spinneret plate having a spin slot aspect ratio of 6:1
  • FIG. 6B illustrates an axial view of the capillary, according to one implementation.
  • FIG. 6C illustrates a plan view of a portion of a spinneret plate defining a plurality of the capillaries shown in FIGS. 6A and 6B.
  • FIG. 7 illustrates a radial cross section view of a melt-spun filament having slightly arcuate shaped linear perimetrical section according to another implementation.
  • FIG. 8 illustrates a radial cross section view of a melt-spun filament having a core and sheath according to another implementation.
  • FIG. 9 illustrates a radial cross section view of a melt-spun filament having two materials with differential coefficients of thermal expansion, according to another implementation.
  • Various implementations include a melt-spun filament that has a radial cross section that has two substantially parallel linear perimetrical sections and first and second curved perimetrical sections.
  • the first curved perimetrical section extends between first ends of the linear perimetrical sections
  • the second curved perimetrical section extends between second ends of the linear perimetrical sections.
  • the curved perimetrical sections are convex. According to some embodiments, the curved perimetrical sections are semi-circular or semi-elliptical.
  • melt-spun filaments provide a softer hand feel than rectangular shaped filaments, which is similar to the hand feel provided by trilobal and round shaped filaments, but the melt-spun filaments are less prone to breaking (higher tenacity) than trilobal and round shaped filaments, which also reduces waste.
  • a bundle of filaments that includes a plurality of the melt-spun filaments is provided.
  • a filament yarn that includes a plurality of the melt- spun filaments is provided.
  • a bulked continuous filament yarn that includes a plurality of melt-spun filaments is provided.
  • the melt-spun filament is made by (1) providing a spinneret plate comprising one or more capillaries, each capillary having a rectangular shaped outlet opening; and (2) feeding at least one melted thermoplastic polymer through the capillary.
  • FIGS. 1 and 2 illustrate an example melt-spun filament according to one implementation.
  • FIG. 1 shows a radial cross section of the melt-spun filament 10.
  • the radial cross section of the melt-spun filament 10 has a first linear perimetrical section 12, a second linear perimetrical section 14, a first curved perimetrical section 16, and a second curved perimetrical section 18.
  • the term "perimetrical section" as used herein refers to portions of an external surface of the filament.
  • the first curved perimetrical section 16 extends between first ends 12a, 14a of the first and second linear perimetrical sections 12, 14, respectively, and the second curved perimetrical section 18 extends between second ends 12b, 14b of the linear perimetrical sections 12, 14, respectively.
  • the curved perimetrical sections 16, 18 are convex as viewed from a point external to the filament 10 in a direction toward the filament 10. In other words, these curved perimetrical sections 16, 18 appear concave as viewed in a direction toward the sections 16, 18 from an axis A-A of the melt-spun filament 10. As shown, the curved perimetrical sections 16, 18, are curved, or arcuate shaped, along the entire length of the sections 16, 18 extending between ends 12a, 14a and 12b, 14b of the linear perimetrical sections 12, 14, respectively. Accordingly, the radial cross section of the melt-spun filament 10 appears capsule shaped. The filament 10 is solid. Accordingly, the filament 10 does not define a void or hollow portion that extends axially through the filament 10.
  • the curved perimetrical sections have a radius of curvature that is less than any radius of curvature of the linear perimetrical sections.
  • the curvature of each linear perimetrical section has a radius that is significantly greater than the radius of the curvature of each of the curved perimetrical sections.
  • a tangent line to the ends of the linear perimetrical sections is between 0° to 10° relative to a plane that extends axially through the melt-spun filament and intersects (e.g., bisects) the curved perimetrical sections and includes the central axis of the filament.
  • the filament 10 comprises a thermoplastic material.
  • the thermoplastic material is selected from the group consisting of: polyesters (e.g., polytrimethylene terephthalate (PTT) and polyethylene terephthalate (PET)), polyamides (PA), and polyolefins.
  • polyesters e.g., polytrimethylene terephthalate (PTT) and polyethylene terephthalate (PET)
  • PA polyamides
  • Example polyamides include nylon 6 and nylon 6,6.
  • Example polyolefins include polypropylene (PP) and polyethylene (PE). And, in some embodiments, the first or second material may include a polyolefin and a carbon filler to produce an antistatic yarn.
  • the thermoplastic material resin may be virgin or reclaim grade, according to some embodiments.
  • a width WF to height HF ratio of the radial cross section of the filament 10 is between 3.5:1 and 1.5:1.
  • the width WF is measured in a direction of the linear perimetrical sections 12, 14 at the widest points of the radial cross section, and the height HF is measured in a direction perpendicular to the length direction.
  • the width W F to height HF ratio of the radial cross section is between 3:1 and 2.2:1.
  • the width WF to height HF ratio is between 2.5:1 and 2.2:1.
  • the width WF to height HF ratio is between 3:1 to 2.8:1.
  • the titer per fiber or filament also referred to as "denier per filament", “denier per fiber” or “dpf" range is between 2 and 5 dpf.
  • FIGS. 5A-5B illustrates views of a capillary 50 in a spinneret plate used for spinning melted thermoplastic material into the filament 10, and FIG. 5C illustrates a portion of a spinneret plate 100 defining a plurality of capillaries 50.
  • the capillary 50 has a width Wc to height He ratio of 4:1. The ratio may also be referred to a spin slot aspect ratio.
  • Photographs of sample filaments spun from a spinneret, such as spinneret 100, having multiple capillaries 50 are shown in FIGS. 4A and 4B.
  • the filaments 10 shown in FIG. 4A are spun from a spinneret having 87 capillaries 50, and the filaments have a denier per filament of 3.8 denier.
  • each capillary 50 has a first end portion 51 and a second end portion 52 and an intermediate portion 53 therebetween.
  • the intermediate portion 53 has a constant radial cross- sectional area along the length of the capillary 50.
  • Each end portion is tapered.
  • the surface of each tapered end portion 51, 52 slants at an angle a.
  • the angle a may be between 45° and 80°. For example, in FIGS. 5A-5B, the angle a is 45°.
  • the first end portion 51 has a radial cross-sectional area that decreases axially from a first end 51a of the first end portion 51 to a second end 51b of the first end portion 51, wherein the first end 51a is defined by a first surface 100a of the spinneret plate 100.
  • the second end portion 52 has a radial cross-sectional area that decreases axially from a first end 52a of the second end portion 52 to a second end 52b of the second end portion 52, wherein the second end 52b is defined by a second surface 100b of the spinneret plate 100.
  • the ratio of the number of filaments per yarn spun into the shape shown in FIGS. 1 and 2 compared to the number of trilobal or round filaments spun into a yarn having a similar hand feel is about 1:2.
  • the melt-spun filament 10 is converted into a plurality of staple fibers.
  • Staple fibers have shorter lengths, such as 2 to 3 inches long, compared to filaments, which have long continuous lengths.
  • the melt-spun filament may be converted to a plurality of staple fibers by stretch breaking or chopping one or more of such melt-spun filaments.
  • a plurality of the staple fibers may be bundled.
  • the filament 10 is made by (1) providing a spinneret plate comprising one or more capillaries, each capillary having a rectangular shaped outlet opening; and (2) feeding at least one melted thermoplastic polymer through the capillary.
  • the spinneret plate may be the spinneret plate 100 shown in FIG. 5C having capillaries 50.
  • Various factors contribute to the shape and denier per filament of the filaments, including the melt temperature, the speed of the pump in communication with the extruder, the draw ratio, and the rate at which the filaments are cooled. Altering one or more of these factors can provide the desired shape. For example, if the pump speed is increased but all other factors remain the same, the denier per filament is increased.
  • the denier per filament is decreased and the aspect ratio decreases (e.g., from 4:1 to 4:1.5).
  • the cooling rate is increased and all other factors remain the same, the cross- sectional shape of the filament is more defined.
  • the spinneret plate may be spinneret plate 200 shown in FIG. 6C having capillaries 60.
  • a radial cross section of one of capillaries 60 is shown in FIG. 6A, and an axial cross section of the capillary in FIG. 6A is shown in FIG. 6B.
  • Capillary 60 is similar to capillary 50 except that the width to height ratio of the capillary is 6:1.
  • Photographs of sample filaments spun from a spinneret, such as spinneret 200, having multiple capillaries 60 are shown in FIGS. 3A and 3B.
  • the filaments 10 shown in FIG. 3A are spun from a spinneret having 87 capillaries 60, and the filaments have a denier per filament of 3.8.
  • each capillary 60 has a first end portion 61 and a second end portion 62 and an intermediate portion 63 therebetween.
  • the intermediate portion 63 has a constant radial cross-sectional area along the length of the capillary 50.
  • Each end portion is tapered.
  • the surface of each tapered end portion 61, 62 slants at an angle a.
  • the angle a may be between 45° and 80°. For example, in FIGS. 6A-6B, the angle a is 45°.
  • the first end portion 61 has a radial cross-sectional area that decreases axially from a first end 61a of the first end portion 61 to a second end 61b of the first end portion 61, wherein the first end 61a is defined by a first surface 200a of the spinneret plate 200.
  • the second end portion 62 has a radial cross-sectional area that decreases axially from a first end 62a of the second end portion 62 to a second end 62b of the second end portion 62, wherein the second end 62b is defined by a second surface 200b of the spinneret plate 200.
  • FIG. 7 illustrates a melt-spun filament 20 according to another implementation.
  • the substantially linear perimetrical sections are slightly arcuate shaped compared to the linear perimetrical sections in FIGS. 1 and 2, but the linear perimetrical sections are significantly less curved compared to the curved perimetrical sections (i.e., the curvature of each linear perimetrical section has a radius that is significantly greater than the radius of the curvature of the curved perimetrical sections).
  • the radial cross section of the melt-spun filament 20 shown in FIG. 7 is rice shaped.
  • the angle of a tangent line T to the ends 22a, 22b, 24a, 24b of the linear perimetrical sections 22, 24, respectively, may be between 0° and 10° relative to a plane P that extends axially through the melt-spun filament 20 and includes central axis A-A and intersects (e.g., bisects) the curved perimetrical sections 26, 28.
  • the melt-spun filament further comprises a core and a sheath disposed around the core.
  • FIG. 8 illustrates a melt-spun filament 30 having a core 31 and sheath 33 that encapsulates the core 31.
  • the core 31 is formed from a first material
  • the sheath 33 is formed from a second material.
  • the first material and the second material are different.
  • the first material and the second material are selected from the group consisting of polyesters (e.g., polytrimethylene terephthalate (PTT) and polyethylene terephthalate (PET)), and polyamides (PA), and polyolefins.
  • the sheath 33 has two linear perimetrical sections and two curved perimetrical sections, such as are described in relation to FIGS. 1, 2, and 7 above, and the core 31 has a similar radial cross-sectional shape as the sheath 33.
  • the melt-spun filament comprises a first material and a second material that are coupled along a plane that includes the axis of the filament, and the first material and second material have different coefficients of thermal expansion.
  • FIG. 9 shows a melt-spun filament 40 according to one implementation that includes a first material 41 on one side of the plane P' that includes the axis of the filament 40 and intersects (e.g., bisects) the curved perimetrical sections 46, 48 of the filament 40 and a second material 43 on the other side of the plane P'.
  • the first material and the second material are selected from the group consisting of polyesters (e.g., polytrimethylene terephthalate (PTT) and polyethylene terephthalate (PET)), polyolefins, and polyamides (PA).
  • the linear perimetrical section and the portions of the curved perimetrical sections for each material together come together after spinning to form one filament having two linear perimetrical sections and two curved perimetrical sections, such as are described in relation to FIGS. 1, 2, and 7 above.
  • the bi-component melt-spun filament 40 is self-bulking, according to some implementations, due to the different coefficients of thermal expansion for each material.
  • filaments 20, 3040 are solid. Accordingly, the filaments 20, 30, 40 do not define void or hollow portions that extend axially through the filaments 20, 30, 40.
  • These and other components are disclosed herein, and it is understood that when combinations, subsets, interactions, groups, etc. of these components are disclosed that while specific reference of each various individual and collective combinations and permutations of these components may not be explicitly disclosed, each is specifically contemplated and described herein. For example, if a device is disclosed and discussed every combination and permutation of the device, and the modifications that are possible are specifically contemplated unless specifically indicated to the contrary. Likewise, any subset or combination of these is also specifically contemplated and disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

Conformément à diverses mises en œuvre, la présente invention concerne un filament filé en fusion qui a une section transversale radiale qui a deux sections périmétriques linéaires sensiblement parallèles et des première et seconde sections périmétriques incurvées. La première section périmétrique incurvée s'étend entre des premières extrémités des sections périmétriques linéaires, et la seconde section périmétrique incurvée s'étend entre des secondes extrémités des sections périmétriques linéaires. Les sections périmétriques incurvées sont convexes. Selon certains modes de réalisation, les sections périmétriques incurvées sont semi-circulaires ou semi-elliptiques. Une pluralité de filaments filés en fusion peuvent être inclus dans un faisceau de filaments et/ou un fil fabriqué avec les filaments filés en fusion. En outre, la présente invention concerne également une plaque de filière pour filer les filaments filés en fusion et un procédé de fabrication des filaments filés en fusion.
PCT/US2021/025620 2020-04-02 2021-04-02 Filaments de type ruban et leurs systèmes et procédés de production WO2021203027A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/957,602 US20230045733A1 (en) 2020-04-02 2022-09-30 Ribbon like filaments and systems and methods for producing the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202063004248P 2020-04-02 2020-04-02
US63/004,248 2020-04-02
US202063076193P 2020-09-09 2020-09-09
US63/076,193 2020-09-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/957,602 Continuation-In-Part US20230045733A1 (en) 2020-04-02 2022-09-30 Ribbon like filaments and systems and methods for producing the same

Publications (1)

Publication Number Publication Date
WO2021203027A1 true WO2021203027A1 (fr) 2021-10-07

Family

ID=77927313

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2021/025620 WO2021203027A1 (fr) 2020-04-02 2021-04-02 Filaments de type ruban et leurs systèmes et procédés de production
PCT/IB2023/059293 WO2024069318A2 (fr) 2020-04-02 2023-09-20 Filaments de type ruban et leurs systèmes et procédés de production

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/059293 WO2024069318A2 (fr) 2020-04-02 2023-09-20 Filaments de type ruban et leurs systèmes et procédés de production

Country Status (2)

Country Link
US (1) US20230045733A1 (fr)
WO (2) WO2021203027A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024069318A3 (fr) * 2020-04-02 2024-07-25 Aladdin Manufacturing Corporation Filaments de type ruban et leurs systèmes et procédés de production

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419936A (en) * 1967-01-31 1969-01-07 Monsanto Co Spinneret for melt spinning filaments
US4810448A (en) * 1980-10-30 1989-03-07 Bayer Aktiengesellschaft Processes for the production of dry-spun polyacrylonitrile profiled fibres and filaments
US5154908A (en) * 1985-09-12 1992-10-13 Clemson University Carbon fibers and method for producing same
US5447771A (en) * 1993-06-30 1995-09-05 E. I. Du Pont De Nemours And Company Fiber bilobal cross-sections and carpets prepared therefrom having a silk-like luster and soft hand
US5811186A (en) * 1995-05-25 1998-09-22 Minnesota Mining And Manufacturing, Inc. Undrawn, tough, durably melt-bonded, macrodenier, thermoplastic, multicomponent filaments
US6037047A (en) * 1997-02-26 2000-03-14 E. I. Du Pont De Nemours And Company Industrial fibers with diamond cross sections and products made therefrom
US20040191513A1 (en) * 2000-01-20 2004-09-30 Jing Chung Chang Method for high-speed spinning of bicomponent fibers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470686A (en) * 1967-10-23 1969-10-07 Allied Chem Polyblend yarns
MX2017006786A (es) * 2014-12-19 2017-09-05 Kimberly Clark Co Fibras huecas finas que tienen una fraccion de vacios alta.
WO2021203027A1 (fr) * 2020-04-02 2021-10-07 Aladdin Manufacturing Corporation Filaments de type ruban et leurs systèmes et procédés de production
CN111379651A (zh) * 2020-04-15 2020-07-07 德尔福柴油系统（烟台）有限公司 一种汽油阀座喷嘴及其加工方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419936A (en) * 1967-01-31 1969-01-07 Monsanto Co Spinneret for melt spinning filaments
US4810448A (en) * 1980-10-30 1989-03-07 Bayer Aktiengesellschaft Processes for the production of dry-spun polyacrylonitrile profiled fibres and filaments
US5154908A (en) * 1985-09-12 1992-10-13 Clemson University Carbon fibers and method for producing same
US5447771A (en) * 1993-06-30 1995-09-05 E. I. Du Pont De Nemours And Company Fiber bilobal cross-sections and carpets prepared therefrom having a silk-like luster and soft hand
US5811186A (en) * 1995-05-25 1998-09-22 Minnesota Mining And Manufacturing, Inc. Undrawn, tough, durably melt-bonded, macrodenier, thermoplastic, multicomponent filaments
US6037047A (en) * 1997-02-26 2000-03-14 E. I. Du Pont De Nemours And Company Industrial fibers with diamond cross sections and products made therefrom
US20040191513A1 (en) * 2000-01-20 2004-09-30 Jing Chung Chang Method for high-speed spinning of bicomponent fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024069318A3 (fr) * 2020-04-02 2024-07-25 Aladdin Manufacturing Corporation Filaments de type ruban et leurs systèmes et procédés de production

Also Published As

Publication number Publication date
WO2024069318A3 (fr) 2024-07-25
US20230045733A1 (en) 2023-02-09
WO2024069318A2 (fr) 2024-04-04

Similar Documents

Publication Publication Date Title
US6465094B1 (en) Composite fiber construction
WO2024069318A2 (fr) Filaments de type ruban et leurs systèmes et procédés de production
US4355075A (en) Novel filament-like fibers and bundles thereof, and novel process and apparatus for production thereof
CN111647964A (zh) 一种免胶热粘合定型异形复合纤维及其生产方法、应用
US6881047B2 (en) Process and apparatus for improved conditioning of melt-spun material
EP2884320A1 (fr) Brin à combiner pour donner une unité de fibre optique
US6841247B2 (en) Fibers having improved dullness and products containing the same
US7465418B2 (en) Method and device for producing a composite yarn
EP1458909A1 (fr) Procede de filature centrifuge
NZ227626A (en) Spinneret for production of filament containing voids
EP0853144B1 (fr) Fibres à domaine multiple et procédés pour leur fabrication
US5277855A (en) Process for forming a yarn having at least one electrically conductive filament by simultaneously cospinning conductive and non-conductive filaments
EP0958414B1 (fr) Fibres a deux composants dans une structure ame-enveloppe comprenant des fluoropolymeres et leurs procedes de production et d'utilisation
US20230407527A1 (en) Melt-spun filaments, yarns, and methods of making the same
JPH07173708A (ja) 異形断面繊維の紡糸口金及び該紡糸口金を用いた異形断面繊維の製造方法
US20090197080A1 (en) Self-crimping fluoropolymer and perfluoropolymer filaments and fibers
US20230212792A1 (en) High wear resilient soft yarn
EP0078104B1 (fr) Fil de filaments
CA1097470A (fr) Traduction non-disponible
JPH03185106A (ja) 多フィラメント紡糸口金および溶融紡糸方法
MXPA97007933A (en) Multiple domain fibers that have composition capacity of interdominum limit and method to make myself
CA2667872A1 (fr) Filaments de polymeres fluores et de polymeres perfluores auto-crepants et fibres connexes
JPH07310225A (ja) 芯鞘中空複合繊維用紡糸口金及び芯鞘中空複合繊維の製造法
JPS62133112A (ja) 異収縮混繊糸の製造法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21779227

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21779227

Country of ref document: EP

Kind code of ref document: A1