US2939202A - Synthetic polymer textile filament - Google Patents

Synthetic polymer textile filament Download PDF

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Publication number
US2939202A
US2939202A US86318959A US2939202A US 2939202 A US2939202 A US 2939202A US 86318959 A US86318959 A US 86318959A US 2939202 A US2939202 A US 2939202A
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United States
Prior art keywords
filaments
sample
luster
fibers
filament
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 - Lifetime
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English (en)
Inventor
Marlin C Holland
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EIDP Inc
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EI Du Pont de Nemours and Co
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Filing date
Publication date
Priority to NL251899D priority Critical patent/NL251899A/xx
Priority to NL128475D priority patent/NL128475C/xx
Priority to BE591098D priority patent/BE591098A/fr
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US86318959 priority patent/US2939202A/en
Priority to DE19601435612 priority patent/DE1435612A1/de
Priority to GB1818160A priority patent/GB924090A/en
Priority to CH595160A priority patent/CH417846A/de
Application granted granted Critical
Publication of US2939202A publication Critical patent/US2939202A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/26—Composite fibers made of two or more materials
    • 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
    • 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
    • Y10T428/2978—Surface characteristic
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31826—Of natural rubber
    • Y10T428/31841—Next to cellulosic
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3065—Including strand which is of specific structural definition
    • Y10T442/3089—Cross-sectional configuration of strand material is specified
    • Y10T442/3114—Cross-sectional configuration of the strand material is other than circular
    • Y10T442/3122—Cross-sectional configuration is multi-lobal
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/425—Including strand which is of specific structural definition
    • Y10T442/431—Cross-sectional configuration of strand material is specified
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/609—Cross-sectional configuration of strand or fiber material is specified
    • Y10T442/61—Cross-sectional configuration varies longitudinally along strand or fiber material

Definitions

  • Fibers having various cross-sectional shapes have been prepared to provide textile materials having certain desirable properties. For example, fibers having a Y- shape cross section have been used in fabrics to provide bulk. Similarly, fibers have been made with other cross sections, e.g., ribbon, dumbbell or dogbone shape and cruciform, to provide improvements in other textile properties. Fibers having a trilobal configuration which provide unique luster highlight in addition to other desirable properties are described in my copending application Serial No. 822,514, filed June 24, 1959, which is a continuation in-part of my application Serial No. 748,447, filed July 14, 1958, now abandoned.
  • the filaments described in my copending application have three symmetrical lobes, with each lobe having essentially straight side portions extending outwardly and tangent to an arcuate portion at each end. I have now discovered that this unique luster highlight is also found in other trilobal filaments having side portions which are convex. In addition to the unique optical properties, the fibers having convex side portions provide other improved properties which are particularly desirable in flat textile fabrics.
  • novel filaments and fibers prepared from synthetic polymers having a cross-sectional shape consisting of three convex sides and three arcuate terminal portions.
  • the convex sides may be made up of two straight portions which join the curved portion to the adjacent arcuate tips.
  • the tips of the three terminal portions of the cross section of the filaments define a circle having its center equidistant from the tips.
  • the cross section may be divided into three porfions, each including a tip, which are essentially symmetrical in shape. Filaments of the present invention are members of the tribrachiate family and may be defined by any three of mentioned are obtained.
  • filaments and fibers will be used interchangeably in their usual and accepted meaning.
  • luster 2,939,202 Patented June 7, 1960 2 highlight is meant the frequency and the degree of-concentration (in area) or the high intensity light reflected from a small area of a yarn or textile material relative to the average of the total amount of light reflected from a portion of the same yarn or textile material which includes the small area.
  • soiling resistance is meant the apparent resistance of a textile materialto visible soil which may be independent of the soiling which may actually occur.
  • Figures land 2 are enlarged representations of cross sections of the filaments of this invention.
  • Figures 3 and 4 are graphs showing the area in which the parameters defining the crosssection of the filaments of this invention appear.
  • Figure 5 is an enlarged view of a spinneret'orificewhich may be used in spinning the filaments of the present invention.
  • the equations set forth in my copending application express the interrelation of the aforementioned parameters.
  • the arm angle A is greater than 60.
  • the modification ratio M is from about 1.1 to about 1.63
  • the tip radius ratio is from about zero to about 0.71
  • the arm angle A is from about 70 to 150.
  • not all combinations of the aforementioned parameters will provide filaments having the improved properties heretofore described. It is only filaments having combinations of parameters selected from the cross-hatched areas of Figs. 3 and 4 which provide the new and unusual properties. It will be noted that the areas shown on the graphs are not regular geometrical figures as one might expect. If a three-dimensional plot were made incorporating the points on the graphs, it would appear as a volume with those filaments exhibiting maximum luster being found at the position where angle A is about is about 0.3, and M is about 1.28.
  • the filaments of the present invention exhibit a unique luster highlight since sparkle and glitter have heretofore been thought to be attributable to the presence of relatively large, fiat surface areas along the fiber axis. It is also surprising that the filaments of the present invention exhibit a much higher resistance to wrinkling and soiling than fibers having either a triangular at C.
  • the denier of the filaments may vary within wide limits.
  • Deniers in the range'from 1 to '35 are usually preferred
  • polyester filaments' was prepared from a v copolymer of polyethylene tei'ephthala'te modified with 2 'mol' percent i sodium-2,5-di (carboniethoxy)benzene sulfontrte.
  • the polymer had 7 a "relative viscosity of 22.3 as "measured in a 10% solution of the polymer in a mixture of 10 parts of phenol and 7 parts of 2,4,6-dichlorophenol polymer contained 0.3% titanium dioxide bywei ht' H
  • the polymer was melt spun at 296- C.
  • the filaments upon being extruded from the spinneregwere quenched in cross-flowing air having a velocity of65-fe'et'per minute ands temperature of 70 C. They were wound up as a 50-filament bimdle at a windup speed of 1500 yards per minute. The total denier of the spun yarn was 152. The spun yarn was then drawn at a temperature of 107 'C., using a one-quarter inch diameter snubbing pin, a draw ratio of 2.14, and a windup speed of 604 yards per minute. The drawn yarn was found to have a total denier of 70.3, a tenacity of 3 grams per denier, and a break elongation of 24.2%.
  • a taffeta fabric was woven from the'yarnf In weaving
  • Percent transmitted lighf a determining the percent transmitted light, It, which after soiling.
  • Launder-Ometer, manufactured by the AtlasElectric Deis a measure of white light transmitted by a fabric within the range of 1% to 20% transmission, a photoeIectric cell, a light source, and a sample were arranged in a wooden box, the inside surface of which was painted a flat black. The amount of light transmitted through a circular area of each sample which was illuminated by diffused light was measured. A l00-watt frosted'incandescent lamp placed six inches from the sample was used to illuminate the sample. The sample was hung in, a vertical plane free from externally applied tension and was held against a two-inch diameter hole.
  • the instrument was calibrated by adjusting a variable transformer which was connected between the instrument and a constant voltage transformer to'give a meter-reading of 36.6 milliamperes when a neutral filter having a transmission of approximately 12.5% is'substituted for the fabric sampler Light transmission in percent as recorded in .Tablel was calculated byedividing -the, average of four meter readings for four samples by three.
  • Palmitic acid w 7 1.6 Oleic acid 1.6
  • Soiling was carried out by placing two samplesin each of two jars of soil. The jars were tumbled with one hun- -dred 0.25 inch stainless steel balls for forty-five minutes at 70 F. The reflectance of each sample was measured The samples were then washed in a vices Company, for twenty minutes in 200 ml. of distilled water at 100 F. with 0.25% of a detergent, made and sold by Procter and Gamble under the trade name Tide," and fifty 0.25 inch stainless steel balls. After washing, the samples were rinsed in distilled water, air dried, and the reflectance again determined. Reflectance measurements were determined using a Photovolt reflectometer, model 610 (Photovolt Corporation).
  • the instrument 2 Oily soil The procedure used in testing for resistance to oily soil is essentially the same as that described above for testing the resistance to dry soiling, except the soiling composition used is changed.
  • the standard oil soil is composed of the following materials:
  • the luster highlight rating was determined by averaging the subjective ratings of six persons. Ratings were made on a scale from 1 to 5 with a rating of 1 representing no luster highlight and a rating of 5 representing a high luster highlight.
  • a yarn having a total denier of about 900 was prepared by plying the filaments together. The yarn was then bulked as described in the copending application of Breen and Lauterbach, Serial No. 698,103, filed November 22, 1957. Three ends of the bulked yarn were then plied and 10 twisted to give a total denier of approximately 3500.
  • This yarn was then tufted into a loop pile carpet containing about 22 ounces of pile yarn per square yard of jute backing; A carpet of similar construction was prepared using round filaments.
  • EXAMPLE III A number of polymethyl methacrylate cylinders were 25 machined to give enlarged fiber models having crosssectional shapes defined by the parameters listed in Table 2. The'models were rated subjectively by four persons .for luster highlight with a rating of 1.0 representing no luster highlight and a rating of 7.5 representing a very high luster highlight. The data recorded in the table was the average of the four evaluations.
  • Sample No. Rating polymers are the polyami es such as polyhexamethylene adipamide, polyhexamethylene sebacamide, polycaproamide, polyxylylene azelamide, polyoctamethylene oxalamide, polypyrrolidone, polymet-aphenylene isophthalamide; polymetaphenylene adipamide; copolyamides, .and irradiation grafted polyamides; the polyesters and copolyesters such as the condensation productsof ethylene glycol with terephthalicacid, ethylene glycol with a 98/2 mixture of tere'phthalic/S-(sodium ,sulfo) -is ophthalic acids, ethylene glycol with a 90/ 10 mixture of terephthalic' and -isophthalic acids, polyesters derived from 2,2-bis(4'-hydroxyphenyl) propane, and trans-p-hexahydroxylylene glycol wit-h terephthalicacid; acryl
  • the filaments ' mayjbe spunjin the form of two, monofilament yarn, mutilfilament yarn,
  • the filaments of this invention are particularly .useful in bulked form. Bulking may be convenientlyfachieved by a number of methods. For example, aparticularly desirable bulking process is described in thecopending application of Breen and Lauterbach, Serial No. 698,103, filed November,22, .1957.
  • the novel filamentsof this invention are peculiarly adaptable to being processed "by the bulking process of the just mentioned application.
  • the filaments of this invention may also be treated according to e rqsss fi i h r e et s application of Breen and Sussman, Serial Nb. 810,671, filed May 4, 1958, to provide desirable products.
  • the configuration of the filaments of this invention may be present without impairing their desirable properties. Slight distortions may be introduced in the filament when it' is spun, or during the processing operations such as drawing, crimping, twisting, dyeing, bulking, and the like. Also, the filamentsma contain small amounts of conventional additives-such as dyes, pigments, titanium dioxide (up to about' 2 %'),and thelike.
  • the chief advantage of this invention is that it prospun. as a sheath and core as described inthe application a of Taylor, Serial No. 640,722, filed February 18, 1957;
  • novel fibers and'filaments of this invention may .velvets, and the like.
  • the filament of claim 1 in staple fiber form.
  • a textile yarn comprising the filaments of claim 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US86318959 1959-12-31 1959-12-31 Synthetic polymer textile filament Expired - Lifetime US2939202A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL251899D NL251899A (de) 1959-12-31
NL128475D NL128475C (de) 1959-12-31
BE591098D BE591098A (de) 1959-12-31
US86318959 US2939202A (en) 1959-12-31 1959-12-31 Synthetic polymer textile filament
DE19601435612 DE1435612A1 (de) 1959-12-31 1960-05-23 Faser- bzw. fadenartiges oder -haltiges textiles Gebilde
GB1818160A GB924090A (en) 1959-12-31 1960-05-23 Improvements relating to artificial textile fibres
CH595160A CH417846A (de) 1959-12-31 1960-05-24 Textilfaser aus organischem polymerem Material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86318959 US2939202A (en) 1959-12-31 1959-12-31 Synthetic polymer textile filament

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US2939202A true US2939202A (en) 1960-06-07

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US86318959 Expired - Lifetime US2939202A (en) 1959-12-31 1959-12-31 Synthetic polymer textile filament

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US (1) US2939202A (de)
CH (1) CH417846A (de)
GB (1) GB924090A (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103098A (en) * 1961-10-18 1963-09-10 Eastman Kodak Co Variable luster yarn and method of manufacture
US3109278A (en) * 1960-08-19 1963-11-05 Du Pont Multilobal textile filaments having controlled uniform twist and fabrics prepared therefrom
US3157022A (en) * 1963-01-10 1964-11-17 Eastman Kodak Co Rug yarn
US3164949A (en) * 1963-03-22 1965-01-12 Du Pont Trilobal filamentary yarns
US3169089A (en) * 1960-04-22 1965-02-09 Celanese Corp Filaments
US3220173A (en) * 1964-12-02 1965-11-30 Du Pont Trilobal filamentary yarns
US3429117A (en) * 1965-09-21 1969-02-25 Celanese Corp Composite nylon continuous filament yarns
US3493459A (en) * 1966-12-23 1970-02-03 Monsanto Co Complex multilobal textile filament
US3508390A (en) * 1968-09-30 1970-04-28 Allied Chem Modified filament and fabrics produced therefrom
US3635259A (en) * 1970-02-27 1972-01-18 Burlington Industries Inc Imitation mohair fabric
DE2611830A1 (de) * 1975-03-20 1976-09-30 Du Pont Gemisch und mischgarn aus gekraeuselten polyamidstapelfasern und verfahren zur herstellung derselben
US4259393A (en) * 1978-10-02 1981-03-31 Milliken Research Corporation Fibrillated polyester textile fabric
US4461855A (en) * 1980-08-28 1984-07-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Resin composite reinforced with fibers having a flat-sided triangular shape
US4635920A (en) * 1984-07-20 1987-01-13 Ricoh Company, Ltd. Selective sheet loading apparatus
WO1996035832A1 (en) * 1995-05-11 1996-11-14 E.I. Du Pont De Nemours And Company Filament having a triangular cross section and 3 or 6 axially extending voids
US6048615A (en) * 1998-01-30 2000-04-11 E. I. Du Pont De Nemours And Company Filament having a trilobal cross-section and a trilobal void
WO2001016413A1 (fr) * 1999-08-26 2001-03-08 Asahi Kasei Kabushiki Kaisha Fil a section modifiee par poly(trimethylene terephtalate)
US20020098356A1 (en) * 1996-09-16 2002-07-25 Basf Corporation Dyed sheath/core fibers and methods of making same
WO2002072932A1 (en) * 2001-03-14 2002-09-19 E. I. Du Pont De Nemours And Company Melt spun yarns having high lustre
US20030104163A1 (en) * 1996-09-16 2003-06-05 Basf Corporation, Inc. Colored fibers having resistance to ozone fading
US6589653B2 (en) 2001-08-08 2003-07-08 E. I. Du Pont De Nemours And Company Filament having a quadrilobate exterior cross-section and a four-sided void
US20040132375A1 (en) * 2000-10-16 2004-07-08 Toyotaka Fukuhara Thermal insulating material for housing use and method of using the same
US7033669B2 (en) 2002-02-13 2006-04-25 Honeywell Int Inc Cationically dyed fibers and articles containing the same
US20100159186A1 (en) * 2008-12-18 2010-06-24 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
US20100159184A1 (en) * 2008-12-18 2010-06-24 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
US20130029086A1 (en) * 2011-07-29 2013-01-31 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
US20160007528A1 (en) * 2013-03-04 2016-01-14 Shakespeare Company, Llc Novel Trimmer Line for String Trimmers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US414090A (en) * 1889-10-29 Draw-plate
US1773969A (en) * 1928-09-08 1930-08-26 Celanese Corp Process of and apparatus for making artificial filaments
US2041798A (en) * 1931-01-15 1936-05-26 Celanese Corp Production of artificial materials
US2373392A (en) * 1941-06-24 1945-04-10 Griswold Lester Slide holder
US2831748A (en) * 1952-02-26 1958-04-22 British Celanese Process for melt spinning crimped filaments

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US414090A (en) * 1889-10-29 Draw-plate
US1773969A (en) * 1928-09-08 1930-08-26 Celanese Corp Process of and apparatus for making artificial filaments
US2041798A (en) * 1931-01-15 1936-05-26 Celanese Corp Production of artificial materials
US2373392A (en) * 1941-06-24 1945-04-10 Griswold Lester Slide holder
US2831748A (en) * 1952-02-26 1958-04-22 British Celanese Process for melt spinning crimped filaments

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169089A (en) * 1960-04-22 1965-02-09 Celanese Corp Filaments
US3109278A (en) * 1960-08-19 1963-11-05 Du Pont Multilobal textile filaments having controlled uniform twist and fabrics prepared therefrom
US3103098A (en) * 1961-10-18 1963-09-10 Eastman Kodak Co Variable luster yarn and method of manufacture
US3157022A (en) * 1963-01-10 1964-11-17 Eastman Kodak Co Rug yarn
US3164949A (en) * 1963-03-22 1965-01-12 Du Pont Trilobal filamentary yarns
US3220173A (en) * 1964-12-02 1965-11-30 Du Pont Trilobal filamentary yarns
US3429117A (en) * 1965-09-21 1969-02-25 Celanese Corp Composite nylon continuous filament yarns
US3493459A (en) * 1966-12-23 1970-02-03 Monsanto Co Complex multilobal textile filament
US3508390A (en) * 1968-09-30 1970-04-28 Allied Chem Modified filament and fabrics produced therefrom
US3635259A (en) * 1970-02-27 1972-01-18 Burlington Industries Inc Imitation mohair fabric
DE2611830A1 (de) * 1975-03-20 1976-09-30 Du Pont Gemisch und mischgarn aus gekraeuselten polyamidstapelfasern und verfahren zur herstellung derselben
US3994122A (en) * 1975-03-20 1976-11-30 E. I. Dupont De Nemours And Company Mixed cross-section staple filament mixtures and yarn therefrom
US4259393A (en) * 1978-10-02 1981-03-31 Milliken Research Corporation Fibrillated polyester textile fabric
US4461855A (en) * 1980-08-28 1984-07-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Resin composite reinforced with fibers having a flat-sided triangular shape
US4635920A (en) * 1984-07-20 1987-01-13 Ricoh Company, Ltd. Selective sheet loading apparatus
WO1996035832A1 (en) * 1995-05-11 1996-11-14 E.I. Du Pont De Nemours And Company Filament having a triangular cross section and 3 or 6 axially extending voids
US5686121A (en) * 1995-05-11 1997-11-11 E. I. Du Pont De Nemours And Company Spinneret for producing a filament having a triangular cross-section and 3 or 6 axially extending voids
US6531218B2 (en) 1996-09-16 2003-03-11 Basf Corporation Dyed sheath/core fibers and methods of making same
US20020098356A1 (en) * 1996-09-16 2002-07-25 Basf Corporation Dyed sheath/core fibers and methods of making same
US20020110688A1 (en) * 1996-09-16 2002-08-15 Basf Corporation Dyed sheath/core fibers and methods of making same
US20030104163A1 (en) * 1996-09-16 2003-06-05 Basf Corporation, Inc. Colored fibers having resistance to ozone fading
US6048615A (en) * 1998-01-30 2000-04-11 E. I. Du Pont De Nemours And Company Filament having a trilobal cross-section and a trilobal void
WO2001016413A1 (fr) * 1999-08-26 2001-03-08 Asahi Kasei Kabushiki Kaisha Fil a section modifiee par poly(trimethylene terephtalate)
US6620505B1 (en) 1999-08-26 2003-09-16 Asahi Kasei Kabushiki Kaisha Poly(trimethylene terephthalate) modified cross-section yarn
US20040132375A1 (en) * 2000-10-16 2004-07-08 Toyotaka Fukuhara Thermal insulating material for housing use and method of using the same
WO2002072932A1 (en) * 2001-03-14 2002-09-19 E. I. Du Pont De Nemours And Company Melt spun yarns having high lustre
US6652965B2 (en) 2001-03-14 2003-11-25 E. I. Du Pont De Nemours And Company Melt spun yarns having high luster
US20040046278A1 (en) * 2001-03-14 2004-03-11 Merigold Richard J. Melt spun yarns having high lustre
AU2002245681B2 (en) * 2001-03-14 2006-11-09 Invista Technologies S.A.R.L. Melt spun yarns having high lustre
US6589653B2 (en) 2001-08-08 2003-07-08 E. I. Du Pont De Nemours And Company Filament having a quadrilobate exterior cross-section and a four-sided void
US7033669B2 (en) 2002-02-13 2006-04-25 Honeywell Int Inc Cationically dyed fibers and articles containing the same
US20100159186A1 (en) * 2008-12-18 2010-06-24 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
US20100159184A1 (en) * 2008-12-18 2010-06-24 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
CN102257193A (zh) * 2008-12-18 2011-11-23 纳幕尔杜邦公司 具有大体为三角形横截面的聚对苯二甲酸丙二醇酯实芯抗原纤化长丝、用于制备所述长丝的喷丝板、以及由此制备的地毯
US20130029086A1 (en) * 2011-07-29 2013-01-31 E. I. Du Pont De Nemours And Company Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom
US20160007528A1 (en) * 2013-03-04 2016-01-14 Shakespeare Company, Llc Novel Trimmer Line for String Trimmers
US10993369B2 (en) * 2013-03-04 2021-05-04 Shakespeare Company, Llc Trimmer line for string trimmers
US20210235618A1 (en) * 2013-03-04 2021-08-05 Shakespeare Company, Llc Trimmer Line for String Trimmers
US12501853B2 (en) * 2013-03-04 2025-12-23 Shakespeare Company, Llc Trimmer line for string trimmers

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GB924090A (en) 1963-04-24
CH417846A (de) 1966-07-31

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