EP0114933B1 - Antistatisches Garn zusammengestellt aus gleichzeitig gesponnenen Polyhexamethylenadipamidfasern die ein N-alkyl substituiertes Polyamid enthalten und Polyethylenterephtalatfasern - Google Patents

Antistatisches Garn zusammengestellt aus gleichzeitig gesponnenen Polyhexamethylenadipamidfasern die ein N-alkyl substituiertes Polyamid enthalten und Polyethylenterephtalatfasern Download PDF

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Publication number
EP0114933B1
EP0114933B1 EP83109884A EP83109884A EP0114933B1 EP 0114933 B1 EP0114933 B1 EP 0114933B1 EP 83109884 A EP83109884 A EP 83109884A EP 83109884 A EP83109884 A EP 83109884A EP 0114933 B1 EP0114933 B1 EP 0114933B1
Authority
EP
European Patent Office
Prior art keywords
filaments
poly
yarn
antistatic
nylon
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
Application number
EP83109884A
Other languages
English (en)
French (fr)
Other versions
EP0114933A3 (en
EP0114933A2 (de
Inventor
Eugene Guyton Jones
Donald Rittler Strachan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0114933A2 publication Critical patent/EP0114933A2/de
Publication of EP0114933A3 publication Critical patent/EP0114933A3/en
Application granted granted Critical
Publication of EP0114933B1 publication Critical patent/EP0114933B1/de
Expired legal-status Critical Current

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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • 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
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • 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

Definitions

  • This invention relates to antistatic cospun yarn comprising poly(hexamethylene adipamide) filaments and poly(ethylene terephthalate) filaments and to woven and knitted fabrics made therefrom.
  • This invention provides an antistatic cospun yarn comprising a major amount up to about 70 weight percent of poly(ethylene terephthalate) filaments with the remainder being poly(hexamethylene adipamide) filaments containing 3 to 10 weight percent of an N-alkyl substituted polycarbonamide, the filaments having a denier of from 1 to 10. Knitted and woven fabrics of such yarn are also part of this invention.
  • the cospun yarn of the invention may be prepared in accordance with the general techniques described in Reese U.S. Patent 3,681,910. Basically, the two fiber-forming polymeric compositions are separately fed to one or more spinning assemblies and extruded to form groups of discrete filaments from each of the polymer compositions in the desired proportions. The filaments are then combined into a single composite yarn and drawn as an integral yarn. The filaments of the yarn are of textile denier, from 1 to 10 denier (1.1 to 11 dtex) per filament.
  • the two fiber-forming polymeric compositions employed in the present invention are poly(ethylene terephthalate) hereinafter 2GT and poly(hexamethylene adipamide) hereinafter nylon 6,6.
  • the nylon 6,6 to be extruded contains from 3 to 10 weight percent of an N-alkyl substituted polycarbonamide as an antistat modifier. The latter, which is described in more detail below is known to reduce the static propensity of synthetic yarn.
  • the desired yarn desirably contains a major amount of 2GT filaments, preferably about 60% by weight, but no more than 70% by weight.
  • the remaining filaments in the yarn are constituted by the modified nylon 6,6 filaments. Surprisingly it has been found that the static propensity of fabrics of such yarns as shown by cling tests is no greater than that of similar fabrics composed entirely of the modified nylon 6,6 filaments.
  • the nylon 6,6 filaments contain from about 3 to 10 weight percent of an N-alkyl substituted polycarbonamide modifier in which the tertiary carbonamide groups are an integral part of the polymer molecule.
  • Useful modifiers are those disclosed in Alderson U.S. 3,900,676.
  • the modifier has a molecular weight of at least about 800 to 5000 and is dispersed throughout the filament substantially as a separate phase in the form of discrete elongated conductive particles aligned essentially parallel to the filament axis, all as described in the aforementioned Alderson patent.
  • the elongated conductive particles should have a ratio of their length, L, to average diameter, D, of at least about 100 as taught in said Alderson patent.
  • the N-alkyl polycarbonamide may be mixed directly with the fiber-forming nylon 6,6 and then immediately spun into filaments. If desired, it may be combined with polymer flake and then spun into filaments. Less reactive N-alkyl polycarbonamides can be introduced into the autoclave during production of the fiber-forming polycarbonamide. Preferably, the N-alkyl polycarbonamide and fiber-forming nylon 6,6 are mixed in molten condition and immediately spun into filaments.
  • N-alkyl polycarbonamides are disclosed particularly in column 3 line 7 through line 21 of column 4 of U.S. Patent 3,900,676.
  • the modifier employed is the reaction product of a mixture of 80% N,N' - di - n - butyl hexamethylene diamine and 20% of mono - N - butyl hexamethylene diamine and dodecanedioic acid.
  • Stearic acid is employed as a viscosity stabilizer.
  • the modifier had a melting point less than 0°C, a calculated molecular weight of about 2100 and a viscosity of 1100 centistokes at 95°C.
  • the cospun yarns of the examples which follow were prepared using the general procedures described in the aforementioned Reese patent.
  • One filament group of the mixed filament yarn was 2GT filaments while the other was nylon 6,6 filaments, the latter having incorporated therein the antistat modifier mentioned above.
  • Two techniques for incorporation of the N-alkyl substituted polycarbonamide are illustrated.
  • the modifier was injected into the nylon 6,6 stream shortly before extrusion by injection of the modifier into the screw melter-extruder and mixing before the melt-spinning operation.
  • Example II the modifier was combined with the nylon 6,6 in the autoclave in the polymerization cycle.
  • cospinning is achieved by separately metering 2GT and nylon 6,6 containing modifier to two separate inlet-ports of a melt spinning assembly designed to accommodate the. two streams and keep them separate.
  • the polymers are discharged in a conventional manner through a spinneret.
  • the two groups of filaments merge and are then drawn and wound up in a package. Details are given in the examples.
  • Relative viscosity, RV, of 2GT as used in the following examples is the ratio of the viscosity of a 4.75 weight percent solution of 2GT in hexafluoroisopropanol to the viscosity of the hexafluoroisopropanol per se, measured in the same units at 25°C.
  • the RV of nylon 6,6 is measured as described in U.S. 3,681,910 at column 3, lines 25-30.
  • Skein Log R-this test is similar to the yarn log R test in U.S. 3,900,676 except that for Skein Log R, sufficient revolutions were wound to make a skein with a cross-section of 720,000 denier (792,000 dtex).
  • the skein is scoured, dried and conditioned at 20% relative humidity for 24 hours.
  • the skein is cut and clamped without spreading between electrodes 2.0 inches apart so that 360,000 denier (396 000 dtex) is between the electrodes.
  • the resistance is measured at 20% relative humidity with a megohmeter under a potential of 210 volts.
  • Cospun yarns of trilobal 2GT filaments (60% by weight) and trilobal nylon 6,6 filaments (40% by weight) containing antistat modifier were prepared from nylon 6,6 (42 R.V. with 0.02% Ti0 2 ) containing 4.6% by weight of modifier and from 2GT (22 R.V. with 0.1% Ti0 2 ).
  • the polymers were melt spun at 291°C through a single spinneret into a yarn (6 filaments of each polymer) in which the nylon 6,6 filaments had an R.V. of 47.7 and the 2GT filaments an R.V. of 21.5.
  • the extruded filaments were air-quenched.
  • the yarn denier was 40 (44 dtex), percent elongation was 35.4, tenacity was 3.5 gpd (3.29 g/dtex).
  • the nylon 6,6 filaments had a denier of 2.7 (3 dtex) while the 2GT filaments had a denier of 4.0 (4.4 dtex).
  • the antistatic performance of skeins and warp knit fabrics from the yarns is reported as Item 1 on Table I below.
  • Example II A process similar to that used in Example I was performed except that the polymers used were nylon 6,6 (32 R.V. with 0.02% Ti0 2 ) containing 5.25% by weight of modifier and 2GT (22 R.V. with 0.1 % Ti0 2 ).
  • the resulting yarn was made up of nylon 6,6 filaments (40% by weight) of 39.5 R.V. and 2GT filaments (60% by weight) of 21.2 R.V.
  • the yarn denier was 40 (44 dtex), percent elongation was 42.5, and tenacity was 3.5 gpd (3.2 g/dtex).
  • the antistatic performance of the yarn and the performance of warp knit fabrics of such yarns is reported on Table I as Item 2.
  • Item 3'of Table I represents a cospun trilobal control yarn containing no antistat modifier, but is otherwise similar to Items 1 and 2.
  • Items 4, and 6 are commercial warp knit fabrics from 40 denier (44 dtex) yarn.
  • Item 4 is a trilobal nylon antistatic 13-filament yarn.
  • Item 5 is a quadralobal nylon antistatic 20-filament yarn and
  • Item 6 is a round nylon 13-filament yarn containing no antistat.
  • Items 4 and 5 contain the same modifier as used for Item 1 and at a concentration of 5.25%.
  • Item 7 and 8 represent experiments performed to compare results obtained from nylon 6,6 yarns in which modifier 5.25% concentration was added to 100% of the filaments (Item 7) and nylon 6,6 yarns in which modifier was added at 5.25% concentration to only 50% of the filaments (Item 8). In each case the same modifier was used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)

Claims (3)

1. Antistatisches cogesponnenes Garn, umfassend eine größere Menge von bis zu etwa 70 Gew.-% an Poly(ethylenterephthalat) - Filamenten, wobei Poly(hexamethylenadipamid) - Filamente, die 3 bis 10 Gew.-% N - alkyl - substituiertes Polycarbonamid enthalten, den Rest bilden, und die Filamente einen Titer von 1 bis 10 denier (1,1 bis 11 dtex) aufweisen.
2. Garn nach Anspruch 1, umfassend etwa 60 Gew.-% Poly(ethylenterephthalat) - Filamente.
3. Gewebe aus Garn nach Anspruch 1.
EP83109884A 1982-10-04 1983-10-04 Antistatisches Garn zusammengestellt aus gleichzeitig gesponnenen Polyhexamethylenadipamidfasern die ein N-alkyl substituiertes Polyamid enthalten und Polyethylenterephtalatfasern Expired EP0114933B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43244382A 1982-10-04 1982-10-04
US432443 1982-10-04

Publications (3)

Publication Number Publication Date
EP0114933A2 EP0114933A2 (de) 1984-08-08
EP0114933A3 EP0114933A3 (en) 1986-03-12
EP0114933B1 true EP0114933B1 (de) 1989-07-26

Family

ID=23716180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109884A Expired EP0114933B1 (de) 1982-10-04 1983-10-04 Antistatisches Garn zusammengestellt aus gleichzeitig gesponnenen Polyhexamethylenadipamidfasern die ein N-alkyl substituiertes Polyamid enthalten und Polyethylenterephtalatfasern

Country Status (12)

Country Link
EP (1) EP0114933B1 (de)
JP (1) JPS5988912A (de)
KR (1) KR910005543B1 (de)
AR (1) AR231552A1 (de)
AU (1) AU557233B2 (de)
BR (1) BR8305392A (de)
CA (1) CA1297355C (de)
DE (1) DE3380266D1 (de)
DK (1) DK159828C (de)
GR (1) GR79697B (de)
IE (1) IE54756B1 (de)
MX (1) MX157144A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250664B1 (de) * 1986-06-30 1990-10-03 E.I. Du Pont De Nemours And Company Verfahren zum Zusammenfügen und Zusammenverstrecken von antistatischen Fasern mit nichtverstreckten Nylonfasern
US4668453A (en) * 1985-02-15 1987-05-26 E. I. Du Pont De Nemours And Company Cospinning process
JPH07103489B2 (ja) * 1986-07-01 1995-11-08 イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− 帯電防止フイラメントと非延伸ナイロンフイラメントを組合せ且つ共延伸する方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1442735A (fr) * 1964-09-25 1966-06-17 American Cyanamid Co Nouveau mélange de fibres textiles possédant des propriétés antistatiques améliorées
US3987613A (en) * 1965-07-29 1976-10-26 Burlington Industries, Inc. Process for preparing textiles without static charge accumulation and resulting product
US3900676A (en) * 1967-09-19 1975-08-19 Du Pont Antistatic filaments
JPS5319071B2 (de) * 1971-10-18 1978-06-19
US3803453A (en) * 1972-07-21 1974-04-09 Du Pont Synthetic filament having antistatic properties
JPS5857527B2 (ja) * 1974-02-18 1983-12-20 東レ株式会社 帯電防止性熱可塑性合成繊維の製造方法
US4025595A (en) * 1975-10-15 1977-05-24 E. I. Du Pont De Nemours And Company Process for preparing mixed filament yarns
JPS55137221A (en) * 1979-04-16 1980-10-25 Teijin Ltd Antistatic composite filament and its preparation

Also Published As

Publication number Publication date
DK159828B (da) 1990-12-10
DK159828C (da) 1991-05-06
CA1297355C (en) 1992-03-17
IE832318L (en) 1984-04-04
JPS5988912A (ja) 1984-05-23
DK456083A (da) 1984-04-05
DK456083D0 (da) 1983-10-03
AU557233B2 (en) 1986-12-11
EP0114933A3 (en) 1986-03-12
GR79697B (de) 1984-10-31
IE54756B1 (en) 1990-01-31
BR8305392A (pt) 1984-05-15
KR840006378A (ko) 1984-11-29
DE3380266D1 (en) 1989-08-31
EP0114933A2 (de) 1984-08-08
MX157144A (es) 1988-10-28
KR910005543B1 (ko) 1991-07-31
AR231552A1 (es) 1984-12-28
AU1982083A (en) 1984-04-12

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