DE1460575A1 - Process for improving the dyeability of drawn fibers made from linear polyalkylene terephthalates - Google Patents
Process for improving the dyeability of drawn fibers made from linear polyalkylene terephthalatesInfo
- Publication number
- DE1460575A1 DE1460575A1 DE19641460575 DE1460575A DE1460575A1 DE 1460575 A1 DE1460575 A1 DE 1460575A1 DE 19641460575 DE19641460575 DE 19641460575 DE 1460575 A DE1460575 A DE 1460575A DE 1460575 A1 DE1460575 A1 DE 1460575A1
- Authority
- DE
- Germany
- Prior art keywords
- dyeability
- improving
- polyalkylene terephthalates
- fibers
- fibers made
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P7/00—Dyeing or printing processes combined with mechanical treatment
- D06P7/005—Dyeing combined with texturising or drawing treatments
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
-
- 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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/229—Relaxing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
- D06P5/2066—Thermic treatments of textile materials
- D06P5/2072—Thermic treatments of textile materials before dyeing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Description
FARBWERiCE HOECHST AG, vormals Meister Lucius & Brüning Aktenzeichen: P 14 60 575.5 - Fw 4388FARBWERiCE HOECHST AG, formerly Meister Lucius & Brüning File number: P 14 60 575.5 - Fw 4388
Datura: " ,; U60575 Datura: ",; U60575
Verfahren zum Verbessern der Anfärbbarkeit von verstreckten Fasern aus linearen PolyalkylenterephthalatenProcess for improving the dyeability of drawn Linear polyalkylene terephthalate fibers
Es ist bekannt, daß die Anfärbbarkeit von verstreckten Fasern aus linearen Polyalkylenterephthalaten durchjeine dem üblichen Verstrecken nachfolgende Wärmebehandlung verbessert werden kann. Eine besonders gute Anfärbbarkeit wird erhalten, wenn man die Fasern bei der Wärmebehandlung stark schrumpfen läßt. Bekanntlich wird die Wärmebehandlung entweder an Heizflächen, in Bädern oder in erhitzten Gasen vorgenommen.It is known that the dyeability of drawn fibers of linear polyalkylene terephthalates by any of the usual Stretching subsequent heat treatment can be improved. A particularly good dyeability is obtained when the fibers are allowed to shrink sharply during the heat treatment. As is well known, the heat treatment is either on heating surfaces, made in baths or in heated gases.
Es wurde nun gefunden, daß man die Anfärbbarkeit von verstreckten Fasern aus linearen Polyalkylenterephthalaten durch Wärmebehandlung weiter verbessern kann, wenn man die Fasern oder .,Faserkabel mit einem auf 18O°C bis 280°C erhitzten Gasstrahl, der mit einer Geschwindigkeit von 2 bis **0 m/Sekunde auf die Faser auftrifft, unter Zulassung einer Schrumpfung von 10 bis 30 % erwärmt und anschließend bis zu einer Temperatur unterhalb der Glasumwandlungstemperatur abschreckt.It has now been found that the dyeability of drawn fibers made of linear polyalkylene terephthalates can be further improved by heat treatment if the fibers or. * Strikes the fiber at 0 m / second, warmed up to allow a shrinkage of 10 to 30% and then quenched to a temperature below the glass transition temperature.
Unter Polyalkylenterephthalaten werden Polyester aus Terephthalsäure und Glykolen mit 2 bis 18 Kohlenstoffatomen, insbesondere Xthylenglykol, verstanden.Polyalkylene terephthalates are made of polyesters Understood terephthalic acid and glycols with 2 to 18 carbon atoms, in particular xethylene glycol.
Der Gasstrahl wird zweckmäßig durch zwei oberhalb und unterhalb . eines Faserkabels angebrachte Schlitzdüsen erzeugt und vorteilhaft schräg gegen die Laufrichtung.der Faser gerichtet. Als heißes Gas kann z.B. Luft oder Stickstoff verwendet werden. Nach den Düsen ist nur noch eine kurze Laufstrecke im heißen Gas erforderlich. Die Verweilzeit der Faser im heißen Gas kann weniger al» 1 Sekunde betragen. Die Fasern werden beim Erwärmen so geführt, daß sie um einen Betrag von 10 bis 3O *f> schrumpfen kiinnen. Anschließend werden die Pasern bis zu einer Temperatur unterhalb der Glasumwandlungstemperatur abgeschreckt. Die Ab— -, schreckung erfolgt bevorzugt durch ein Kühlbad oder ein stark bewegte» gasförmiges Mittel, z.B. Luft.The gas jet is expediently through two above and below. Slit nozzles attached to a fiber cable are generated and advantageously directed obliquely against the direction of travel of the fiber. Air or nitrogen, for example, can be used as the hot gas. After the nozzles, only a short run in the hot gas is required. The residence time of the fiber in the hot gas can be less than 1 second. The fibers are guided so when heated that they kiinnen shrink by an amount of 10 to 3O * f>. The fibers are then quenched to a temperature below the glass transition temperature. The deterrent is preferably carried out by a cooling bath or a strongly agitated gaseous medium, for example air.
9098Ί3/08489098-3 / 0848
jrt tArt. /51 Abe. 2 Nr.! SaU 3 ifea Äudcrunr, -ü-s- v. 4. 0.1 jo ')jrt t Art. / 51 Abe. 2 No.! SaU 3 ifea Äudcrunr, -ü-s- v. 4. 0.1 jo ')
Das Verfahren ergibt bei vergleichsweise kurzer Heizstrecke - etwa i/iO der Heizzone bei Kontaktheizung - und damit größerer Wirtschaftlichkeit, insbesondere wenn das heiße Gas im Kreislauf verwendet wird, eine weitere Verbesserung der Anfärbbarkeit. Durch das Verfahren wird eine der Schrumpfung zumeist vorausgehende starke Kristallisation des Polyalkylenterephthalates verhindert . .The method results in a comparatively short heating section - about i / iO of the heating zone with contact heating - and thus larger Economy, especially when the hot gas is used in the cycle, a further improvement in the colorability. The process usually precedes the shrinkage strong crystallization of the polyalkylene terephthalate prevented. .
Das Verfahren kann weiter verbessert werden, wenn man die Fasern durch eine Vorerwärmung, beispielsweise auf Lieferwalzen, auf eine Temperatur bringt, bei der gerade noch keine nennenswerte Kristallisation und kein nennenswerter Schrumpf stattfinden. Bevorzugt werden dabei Temperaturen zwischen 100 und 170 C. Besonders günstige Anfärbbarkeiten lassen sich erreichen, wenn die bei der vorhergehenden Verstreckung eintretende Kristallisation niedrig gehalten wird, was z.B. durch Verstreckung im Wasserbad bei Temperaturen zwischen 50 und 100 C bei niedrigen Verstreckverhältnxssen erreicht werden kann.The process can be further improved if you have the fibers by preheating, for example on delivery rollers brings a temperature at which just no noteworthy crystallization and no noteworthy shrinkage take place. Temperatures between 100 and 170 C. are preferred. Particularly favorable colorability can be achieved if the crystallization which occurs during the previous stretching is kept low, for example by stretching in a water bath at temperatures between 50 and 100 C at low Stretching ratios can be achieved.
Die Dichte des verstreckten Materials als Maßzahl für die Kristallini tat liegt bevorzugt im Bereich von 1,375 g/cm bis 1,387 g/cm3.The density of the stretched material, as a measure of the crystallinity, is preferably in the range from 1.375 g / cm to 1.387 g / cm 3 .
DeispielExample
Ein Polyalkylenterephthalat-Faserkabel von ca. 10 000 den Gesamtstärke wird im Wasserdampfkanal bei °-0°C im Verhältnis λ ι Η,Λ verstreckt. Anschließend wird das Faserkabel auf I50 C vorgewärmt, durch eine auf 250 C geheizte Kontaktfläche weiter erwärmt und geschrumpft (i). Ein weiteres 'Faserkabel (2) wird in einem mit einer Geschwindigkeit von 10 m/Sekunde strömenden Heißluftstrahl bei einer Temperatur von 260 C geschrumpft und dann mit einer Verweilzeit von ca. 0,3 Sekunden durch eine Heißluftstrecke (26O°C) geleitet. Die Gesamtverweilzeit in der Heizzone beträgt 0,3 Sekunden. In beiden Fällen wird der gesamte Schrumpf über einer auf I80 C geheizten Kontaktfläche wieder ausgezogen. Es ergeben sich folgende Werte für Schrumpf und Anfärbbarkeit, letztere in $ des Farbflottenverlustes angegeben:A polyalkylene terephthalate fiber cable with a total thickness of approx. 10,000 is stretched in a steam channel at ° -0 ° C. in the ratio λ ι Η, Λ. The fiber cable is then preheated to 150 C, heated further by a contact surface heated to 250 C and shrunk (i). Another 'fiber cable (2) is shrunk in a hot air jet flowing at a speed of 10 m / second at a temperature of 260 ° C. and then passed through a hot air section (260 ° C.) with a dwell time of approx. 0.3 seconds. The total residence time in the heating zone is 0.3 seconds. In both cases, the entire shrinkage is pulled out again over a contact surface heated to 180 ° C. The following values result for shrinkage and dyeability, the latter given in $ of the dye liquor loss:
909813/08A8909813 / 08A8
, ,., Schrumpf ψ Anfärbbarkeit,,., Shrinkage ψ dyeability
1) 181) 18
2) 222) 22
Ein anderes verstrecktes und nach (i) geschrumpftes Faserkabel wird a) unmittelbar nach Verlassen der Schrumpfzone in Eiswasser abgeschreckt, b) in Luft von Raumteiaperatur und c) während 3 Stunden im Trockenschrank von 2hO C auf 2O C abgekühlt. Die Färbstoffaufnähme für die 3 Proben beträgt in relativen Einheiten!Another stretched fiber cable, which has been shrunk according to (i), is quenched a) immediately after leaving the shrink zone in ice water, b) in air at room temperature and c) cooled from 2 ° C. to 20 ° C. for 3 hours in a drying cabinet. The dye uptake for the 3 samples is in relative units!
a) = 67,2a) = 67.2
b) = 56,7b) = 56.7
c) « 51,7.c) «51.7.
-?"/l :l Hi,-? "/ l: l Hi,
909Ö13/Q848909Ö13 / Q848
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0043995 | 1964-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1460575A1 true DE1460575A1 (en) | 1969-03-27 |
Family
ID=7099817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19641460575 Pending DE1460575A1 (en) | 1964-09-17 | 1964-09-17 | Process for improving the dyeability of drawn fibers made from linear polyalkylene terephthalates |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT257533B (en) |
BE (1) | BE669785A (en) |
CH (1) | CH410265A (en) |
DE (1) | DE1460575A1 (en) |
FR (1) | FR1453531A (en) |
GB (1) | GB1105944A (en) |
NL (1) | NL6511530A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1566955A (en) * | 1977-01-27 | 1980-05-08 | Heathcoat & Co Ltd | Heating and drawing of synthetic filaments |
-
1964
- 1964-09-17 DE DE19641460575 patent/DE1460575A1/en active Pending
-
1965
- 1965-09-03 NL NL6511530A patent/NL6511530A/xx unknown
- 1965-09-06 GB GB37948/65A patent/GB1105944A/en not_active Expired
- 1965-09-15 AT AT843365A patent/AT257533B/en active
- 1965-09-15 CH CH1278965A patent/CH410265A/en unknown
- 1965-09-16 FR FR31580A patent/FR1453531A/en not_active Expired
- 1965-09-17 BE BE669785D patent/BE669785A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1453531A (en) | 1966-06-03 |
AT257533B (en) | 1967-10-10 |
CH410265A (en) | 1966-03-31 |
BE669785A (en) | 1966-03-17 |
GB1105944A (en) | 1968-03-13 |
NL6511530A (en) | 1966-03-18 |
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