EP0340575A1 - Waterfree composition for lubricating sewing yarns - Google Patents

Waterfree composition for lubricating sewing yarns Download PDF

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Publication number
EP0340575A1
EP0340575A1 EP89107311A EP89107311A EP0340575A1 EP 0340575 A1 EP0340575 A1 EP 0340575A1 EP 89107311 A EP89107311 A EP 89107311A EP 89107311 A EP89107311 A EP 89107311A EP 0340575 A1 EP0340575 A1 EP 0340575A1
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EP
European Patent Office
Prior art keywords
weight
thread
preparation
fatty acid
viscosity
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Granted
Application number
EP89107311A
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German (de)
French (fr)
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EP0340575B1 (en
Inventor
Friedhelm Nickel
Sylvia Rodenwald
Hans Dr. Rott
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Hansa Textilchemie GmbH
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Hansa Textilchemie GmbH
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/325—Amines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
    • 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
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2962—Silane, silicone or siloxane in coating

Definitions

  • the invention relates to a water-free preparation for preparing sewing threads and sewing threads containing organopolysiloxanes.
  • organopolysiloxanes are used in a mixture with other substances, since the usual linear dimethylpolysiloxanes alone have inadequate sewing properties.
  • the load-bearing capacity of the organopolysiloxanes is too low.
  • the anti-electrostatic properties cannot be satisfactory either. Therefore, other active ingredients are added to the organopolysiloxanes in order to improve the properties of such preparations.
  • an agent for increasing the lubricity of organic fibers consisting of at least one organosilicon compound which has at least one OSiR2 unit, where R is the same or different, optionally substituted hydrocarbon radicals having 1 to 10 carbon atoms, and at least one grouping -X a ArX a Ar- per molecule, where X is the same or different members of the group - -, -NR′-, -O-, -S-, SO2-, -R ⁇ -, -NR′R ⁇ -, - R ⁇ -, -OR ⁇ -, -SR ⁇ -, -SO2R ⁇ - represents, where R 'is hydrogen or has the same meaning as R and R ⁇ 1 is a divalent aliphatic hydrocarbon radical having 1 to 8 carbon atoms, Ar is the same or different divalent, optionally substituted aromatic hydrocarbon radicals and a is 0 or 1, at least one anti-electrostatic phosphorus compound and optionally other substances
  • the object of the present invention is to find water-free preparations which are simple to produce and are to have unlimited storage stability.
  • the viscosity of the preparations should also remain constant over a longer storage period.
  • the preparations should not have a corrosive effect if possible.
  • Their sewing properties should at least be comparable to the properties of aqueous lubricant formulations.
  • the preparation according to the invention preferably consists of 90 to 99% by weight of a dimethylpolysiloxane of the definition given in claim 1 and 1 to 5 wt .-% of a fatty acid or a fatty amine of the definition given in claim 1 and optionally 0 to 5% by weight of conventional additives.
  • the dimethylpolysiloxanes contained in the preparation should have a viscosity of 50 to 10,000 mm2s ⁇ 1 and a hydroxyl content of 0.3 to 1.5% by weight, preferably a hydroxyl content of 0.4 to 0.8% by weight, to have.
  • a second component contains a fatty acid or a fatty amine with an average of 8 to 18 carbon atoms in the preparation according to the invention.
  • the saturated fatty acid and fatty amines are preferred.
  • Hardened coconut fatty acid or hardened coconut fatty amine is particularly suitable. Mixtures of natural fatty acids or mixtures of fatty amines are generally preferred over the pure compounds.
  • As a C18 fatty acid isostearic acid is preferred to stearic acid because of its better compatibility. However, stearic acid behaves better in terms of sewing properties.
  • solubility of the fatty acid or fatty amine increases with increasing Koh number of substances.
  • solubility of these compounds in organopolysiloxanes improves with increasing temperature, it is advisable to prepare preparations according to the invention which contain a fatty acid or a fatty amine having 16 or more carbon atoms at a higher temperature, for example at a temperature of 40 to 50 ° C. to be used as so-called hot melts.
  • the preparation according to the invention can optionally also contain conventional additives, such as ester oils or organic phosphates.
  • ester oils are the pelargonic acid esters of trimethylolpropane or pentaerythritol and fatty acid esters of lower alcohols, such as butyl stearate.
  • Suitable phosphates are the optionally partial esters of phosphoric acid with aliphatic alcohols having 1 to 20 carbon atoms and the phosphoric acid esters of alkoxylated, especially ethoxylated, aliphatic alcohols and alkylphenols, especially nonylphenol.
  • preparations according to the invention are produced by simple mixing, if appropriate at elevated temperature.
  • different preparations according to the invention are compared with products of the prior art with regard to their sewing properties.
  • First 5 preparations are produced, the composition of which can be seen in the following table.
  • table Components A / B preparation Dimethylpolysiloxane 1 2nd 3rd 4th 5 Parts by weight 150 mm2s ⁇ 1 u. 0.7% OH content 100 95 - - - 400 mm2s ⁇ 1 u. 0.6% OH content - - 95 - - 1000 mm2s ⁇ 1 u. 0.35% OH content - - - 95 - trimethylsilylendstopst 350 mm2s ⁇ 1 u.
  • 35 parts by weight of a trimethylsilyl end group-containing hydroxyl group-free dimethylpolysiloxane with a viscosity of 1000 mm2s ⁇ 1 are mixed with 10 parts by weight of paraffin wax with a melting point of 52 mixed up to 54 ° C and heated to 90 ° C.
  • 3 g of an ethoxylated coconut fatty amine with an HLB value of 12 are distributed in the melt obtained as an emulsifier.
  • 53 parts by weight of 90 ° C. hot water are stirred into the resulting oily phase. The emulsion obtained is allowed to cool with slow stirring.
  • the preparation 7 corresponds to the preparation according to Example 2 of EU PS 0 056 095.
  • the circulation of the preparation on the thread was determined by differential weighing of treated and untreated sewing thread.
  • the thread tension was determined with a thread tension measuring device from Schmidt & Co. KG, Waldkraiburg, type DXX.
  • the treated test thread (as the upper thread) is used to sew 12, 14 or 16 layers of cotton cretone three times at maximum sewing speed until the thread breaks.
  • the strength of the sewing needle to be used depends on the titer of the test thread.
  • the test is repeated with a number of layers increased by two. If, on the other hand, the mean seam distance reached is less than 10 cm, the test is repeated with a number of layers reduced by two.
  • the stick slip is measured according to the following rule:
  • the calibration thread (Gütermann T 353) is first withdrawn from the bobbin via the thread guide and braking elements of a sewing machine and via the measuring head t 1 at 6 m / min, by changing the thread brake a thread tension of 130 g is adjusted.
  • test thread is drawn off at 2, 6 or 14 m / min over the same arrangement and the thread tension t 1 is registered on the recorder.
  • the transcript is evaluated with regard to the mean difference between the minimum and maximum value of the thread tension, the stick-slip behavior being assessed in accordance with the following table: table grade Amplitude of tensograph thread tension 1 0 - 2 mm 2nd 2 - 5 mm 3rd 5 - 9 mm 4th 9 - 13 mm 5 13-18 mm 6 > 18 mm preparation Edition (%) Thread tension (g) Sewing test (cm) Stick-slip 1 not according to the invention 4.6 200-250 21st 5 - 6 2 according to the invention 4.8 140-150 24th 2nd 3 according to the invention 4.8 140-145 26 1 - 2 4 according to the invention 4.5 135-140 28 1 5 not according to the invention 5.0 130-150 18th 3-4 6 not according to the invention 4.7 140-150 22 2nd 7 not according to the invention 4.9 160-170 23 2-3
  • the preparations according to the invention have both low thread tension as well as reduced thread breakage and improved stick-slip with one another.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

Water-free formulation for finishing sewing threads with a content of organopolysiloxanes, which consists of… 65 to 99% by weight of a dimethylpolysiloxane having a viscosity of 50 to 10,000 mm<2>s<-><1> at 25 DEG C and a hydroxyl content of 0.3 to 1.5% by weight and… 1 to 30% by weight of a fatty acid or of a fatty amine having on average 8 to 18 carbon atoms and, if required,… 0 to 5% by weight of customary additives. …<??>The formulations are simple to prepare, have an unlimited shelf life and also have a viscosity which is constant over a relatively long storage time. The formulations impart reduced thread tension, a smaller degree of thread breaking and improved stick-slip properties to sewing threads.

Description

Die Erfindung betrifft eine wasserfreie Zubereitung zum Präparieren von Nähgarnen und Nähzwirnen mit einem Gehalt an Organopolysil­oxanen.The invention relates to a water-free preparation for preparing sewing threads and sewing threads containing organopolysiloxanes.

Es ist aus dem Stand der Technik bekannt, zum Präparieren von Näh­garnen und Nähzwirnen Zubereitungen zu verwenden, welche als gleit­verbessernde Substanzen Organopolysiloxane enthalten. Im allgemeinen werden dabei die Organopolysiloxane in Mischung mit anderen Substan­zen verwendet, da die üblichen linearen Dimethylpolysiloxane alleine nur unzureichende nähtechnische Eigenschaften aufweisen. Insbesonde­re ist das Lasttragevermögen der Organopolysiloxane zu gering. Auch die antielektrostatischen Eigenschaften können nicht befriedigen. Man mischt deshalb den Organopolysiloxanen weitere Wirkstoffe zu, um die Eigenschaften derartiger Präparationen zu verbessern.It is known from the prior art to use preparations which contain organopolysiloxanes as slip-improving substances for the preparation of sewing threads and sewing threads. In general, the organopolysiloxanes are used in a mixture with other substances, since the usual linear dimethylpolysiloxanes alone have inadequate sewing properties. In particular, the load-bearing capacity of the organopolysiloxanes is too low. The anti-electrostatic properties cannot be satisfactory either. Therefore, other active ingredients are added to the organopolysiloxanes in order to improve the properties of such preparations.

Mischungen mit anderen Gleitmittelkomponenten, wie z.B. mit Wachsen, Antistatika, Korrosionsschutzmitteln, sind wegen der begrenzten Mischbarkeit dieser Verbindungen mit Organopolysiloxanen nur kurz­fristig stabil oder müssen in Form wäßriger Zubereitungen, z.B. als Emulsionen, eingesetzt werden.Mixtures with other lubricant components, e.g. with waxes, antistatic agents, anti-corrosion agents, are only stable for a short time because of the limited miscibility of these compounds with organopolysiloxanes or must be in the form of aqueous preparations, e.g. as emulsions.

Bei der Präparation in den offenen Galetten verlieren derartige wäß­rige Zubereitungen jedoch schnell Wasser durch Verdunstung. Dabei bauen sich die Wirkstoffe an den Apparateteilen auf und führen zu einer starken Verschmutzung sowie ungleichmäßigen Präparationsaufla­gen. Derartige wäßrige Zubereitungen haben zudem den Nachteil er­ höhter Korrosivität. Zu diesem Stand der Technik ist z.B. die EU-PS 0 056 095 zu nennen. Sie betrifft ein Mittel zum Erhöhen der Gleit­fähigkeit von organischen Fasern, wobei diese Mittel aus mindestens einer Organosiliciumverbindung, welche mindestens eine OSiR₂-Ein­heit, wobei R gleiche oder verschiedene, gegebenenfalls substituier­te Kohlenwasserstoffreste mit 1 bis 10 Kohlenstoffatomen bedeutet, und mindestens eine Gruppierung
-XaArXaAr-
je Molekül enthält, wobei X gleiche oder verschiedene Glieder der Gruppe

-

Figure imgb0001
-, -NR′-, -O-, -S-, SO₂-, -R˝-, -NR′R˝-,

-
Figure imgb0002
R˝-, -OR˝-, -SR˝-, -SO₂R˝-
darstellt, wobei R′ Wasserstoff ist oder die gleiche Bedeutung wie R hat und R˝ 1 einen zweiwertigen aliphatischen Kohlenwasserstoffrest mit 1 bis 8 Kohlenstoffatomen bedeutet, Ar gleiche oder verschiedene zweiwertige, gegebenenfalls substituierte aromatische Kohlenwasser­stoffreste bedeutet und a jeweils 0 oder 1 ist, mindestens einer an­tielektrostatisch machenden Phosphorverbindung und gegebenenfalls weiteren Stoffen, einschließlich Paraffinwachs, bestehen, und ist dadurch gekennzeichnet, daß sie mindestens eine Verbindung der For­mel
O=P[(OCHR¹CHR¹)nOR² ]₃
enthalten, wobei R¹ jeweils ein Wasserstoff oder die Methylgruppe bedeutet, mit der Maßgabe, daß in jeder -OCHR¹CHR¹-Einheit minde­stens ein R¹ Wasserstoff ist, R² jeweils Wasserstoff oder einen ein­wertigen Kohlenwasserstoffrest mit 1 bis 20 Kohlenstoffatomen und n 0 oder eine ganze Zahl von 1 bis 15 bedeutet, mit der Maßgabe, daß n mindestens 1 ist, wenn R² Wasserstoff ist und in jeder der Phos­phorverbindung mindestens eine -OCHR¹CHR¹-Einheit vorhanden ist.When preparing in the open godets, however, such aqueous preparations quickly lose water through evaporation. The active ingredients build up on the device parts and lead to heavy soiling and uneven preparation conditions. Such aqueous preparations also have the disadvantage increased corrosiveness. EU-PS 0 056 095 is to be mentioned for this state of the art. It relates to an agent for increasing the lubricity of organic fibers, these agents consisting of at least one organosilicon compound which has at least one OSiR₂ unit, where R is the same or different, optionally substituted hydrocarbon radicals having 1 to 10 carbon atoms, and at least one grouping
-X a ArX a Ar-
per molecule, where X is the same or different members of the group

-
Figure imgb0001
-, -NR′-, -O-, -S-, SO₂-, -R˝-, -NR′R˝-,

-
Figure imgb0002
R˝-, -OR˝-, -SR˝-, -SO₂R˝-
represents, where R 'is hydrogen or has the same meaning as R and R˝ 1 is a divalent aliphatic hydrocarbon radical having 1 to 8 carbon atoms, Ar is the same or different divalent, optionally substituted aromatic hydrocarbon radicals and a is 0 or 1, at least one anti-electrostatic phosphorus compound and optionally other substances, including paraffin wax, and is characterized in that it has at least one compound of the formula
O = P [(OCHR¹CHR¹) n OR²] ₃
contain, wherein R¹ each represents a hydrogen or the methyl group, with the proviso that in each -OCHR¹CHR¹ unit at least one R¹ is hydrogen, R² each is hydrogen or a monovalent hydrocarbon radical having 1 to 20 carbon atoms and n represents 0 or an integer from 1 to 15, provided that n is at least 1 when R² is hydrogen and there is at least one -OCHR¹CHR¹ unit in each of the phosphorus compounds.

Diese Mittel vermitteln den Garnen und Zwirnen jedoch noch zu ge­ringe Gleitfähigkeit, so daß die Fadenspannung zu hohe Werte auf­weist. Dies zeigt sich auch beim sogenannten Stick-Slip-Test. Bei diesem Test wird ein Faden über die Fadenleit- und Bremsorgane einer Nähmaschine bei vorgegebener Fadenspannung und Abzugsgeschwindigkeit abgezogen und die Amplitude der Fadenspannung gemessen, die bei guter Präparation möglichst gering sein soll.However, these agents impart insufficient lubricity to the yarns and twists, so that the thread tension is too high. This can also be seen in the so-called stick-slip test. In this test, a thread is drawn off via the thread guide and braking elements of a sewing machine at a given thread tension and take-off speed, and the amplitude of the thread tension is measured, which should be as low as possible with good preparation.

Stellvertretend für wasserhaltige Zubereitungen wird die EU-PS 0 063 311 benannt. In dieser Patentschrift wird ein Mittel mit einem Gehalt an Siliconöl und Wachs zum substantiven Präparieren von Gar­nen oder Zwirnen in Form einer Öl/Wasser-Dispersion beschrieben, welche

  • a) 5 bis 80 Gew.-% Siliconöl einer Viskosität von 500 bis 50 000 mm²s⁻¹ bei 25°C,
  • b) 10 bis 80 Gew.-% Wachs mit einem Schmelzpunkt ≧ 40°C,
  • c) 1 bis 10 Gew.-% Fettsäuren mit 6 bis 22 Kohlenstoffatomen, die gesättigt, verzweigt oder substituiert sein können oder Doppelbindungen aufweisen,
  • d) 0,4 bis 12 Gew.-% kationaktive Imidazoliniumsalze,
  • e) 0 bis 10 Gew.-% ethoxylierte Fettamine,
wobei die Summe der Bestandteile a) bis e) 100 Gew.-% ergeben muß, in Wasser dispergiert oder gelöst enthält.EU-PS 0 063 311 is named to represent water-containing preparations. This patent describes an agent containing silicone oil and wax for the substantial preparation of yarns or twists in the form of an oil / water dispersion, which are
  • a) 5 to 80 wt .-% silicone oil with a viscosity of 500 to 50 000 mm²s⁻¹ at 25 ° C,
  • b) 10 to 80% by weight of wax with a melting point ≧ 40 ° C.,
  • c) 1 to 10% by weight of fatty acids with 6 to 22 carbon atoms, which can be saturated, branched or substituted or have double bonds,
  • d) 0.4 to 12% by weight of cationic imidazolinium salts,
  • e) 0 to 10% by weight of ethoxylated fatty amines,
the sum of the components a) to e) must be 100% by weight, dispersed or dissolved in water.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, wasserfreie Zubereitungen zu finden, welche einfach herzustellen und unbegrenzt lagerstabil sein sollen. Die Viskosität der Zubereitungen soll auch über eine längere Lagerzeit konstant bleiben. Die Zubereitungen sol­len möglichst nicht korrodierend wirken. Ihre nähtechnischen Eigen­schaften sollen den Eigenschaften wäßriger Gleitmittelformulierungen zumindest vergleichbar sein. Überraschenderweise ist dieses Eigen­ schaftsprofil bei einer Präparation zu finden, welche erfindungsge­mäß dadurch gekennzeichnet ist, daß sie aus
65 bis 99 Gew.-% eines Dimethylpolysiloxans mit einer Viskosität von 50 bis 10 000 mm²s⁻¹ bei 25°C und einem Hydroxylge­halt von 0,3 bis 1,5 Gew.-% und
1 bis 30 Gew.-% einer Fettsäure oder eines Fettamins mit im Mittel 8 bis 18 Kohlenstoffatomen und gegebenenfalls
0 bis 5 Gew.-% üblicher Zusatzstoffe
besteht.The object of the present invention is to find water-free preparations which are simple to produce and are to have unlimited storage stability. The viscosity of the preparations should also remain constant over a longer storage period. The preparations should not have a corrosive effect if possible. Their sewing properties should at least be comparable to the properties of aqueous lubricant formulations. Surprisingly, this is peculiar to find the shaft profile in a preparation which is characterized according to the invention in that it consists of
65 to 99 wt .-% of a dimethylpolysiloxane with a viscosity of 50 to 10,000 mm²s⁻¹ at 25 ° C and a hydroxyl content of 0.3 to 1.5 wt .-% and
1 to 30 wt .-% of a fatty acid or a fatty amine with an average of 8 to 18 carbon atoms and optionally
0 to 5% by weight of conventional additives
consists.

Vorzugsweise besteht die erfindungsgemäße Zubereitung aus
90 bis 99 Gew.-% eines Dimethylpolysiloxans der in Anspruch 1 gege­benen Definition und
1 bis 5 Gew.-% einer Fettsäure oder eines Fettamins der in An­spruch 1 gegebenen Definition und gegebenenfalls
0 bis 5 Gew.-% üblicher Zusatzstoffe.The preparation according to the invention preferably consists of
90 to 99% by weight of a dimethylpolysiloxane of the definition given in claim 1 and
1 to 5 wt .-% of a fatty acid or a fatty amine of the definition given in claim 1 and optionally
0 to 5% by weight of conventional additives.

Die in der Zubereitung enthaltenen Dimethylpolysiloxane sollen eine Viskosität von 50 bis 10 000 mm²s⁻¹ aufweisen und einen Hydroxyl­gehalt von 0,3 bis 1,5 Gew.-%, vorzugsweise einen Hydroxylgehalt von 0,4 bis 0,8 Gew.-%, haben.The dimethylpolysiloxanes contained in the preparation should have a viscosity of 50 to 10,000 mm²s⁻¹ and a hydroxyl content of 0.3 to 1.5% by weight, preferably a hydroxyl content of 0.4 to 0.8% by weight, to have.

Als zweite Komponente ist in der erfindungsgemäßen Zubereitung eine Fettsäure oder ein Fettamin mit im Mittel 8 bis 18 Kohlenstoffatomen enthalten. Besonders bevorzugt sind Fettsäure oder Fettamine mit im Mittel 8 bis 16 Kohlenstoffatomen, insbesondere 10 bis 14 Kohlen­stoffatomen. Die gesättigte Fettsäure und Fettamine sind bevorzugt. Besonders geeignet ist gehärtete Kokosfettsäure oder gehärtetes Ko­kosfettamin. Gemische natürlicher Fettsäuren oder Gemische von Fett­aminen sind im allgemeinen den reinen Verbindungen vorzuziehen. Als C₁₈-Fettsäure ist die Isostearinsäure der Stearinsäure aufgrund ihrer besseren Verträglichkeit vorzuziehen. In den nähtechnischen Eigenschaften verhält sich jedoch die Stearinsäure besser. Die Lös­lichkeit der Fettsäure bzw. des Fettamins nimmt mit steigender Koh­ lenstoffanzahl ab. Da sich die Löslichkeit dieser Verbindungen in Organopolysiloxanen jedoch mit steigender Temperatur verbessert, empfiehlt es sich, erf indungsgemäße Zubereitungen, welche eine Fett­säure oder ein Fettamin mit 16 oder mehr Kohlenstoffatomen enthal­ten, bei höherer Temperatur, z.B. bei einer Temperatur von 40 bis 50°C, als sogenannte Hot-melts einzusetzen.A second component contains a fatty acid or a fatty amine with an average of 8 to 18 carbon atoms in the preparation according to the invention. Fatty acid or fatty amines with an average of 8 to 16 carbon atoms, in particular 10 to 14 carbon atoms, are particularly preferred. The saturated fatty acid and fatty amines are preferred. Hardened coconut fatty acid or hardened coconut fatty amine is particularly suitable. Mixtures of natural fatty acids or mixtures of fatty amines are generally preferred over the pure compounds. As a C₁₈ fatty acid isostearic acid is preferred to stearic acid because of its better compatibility. However, stearic acid behaves better in terms of sewing properties. The solubility of the fatty acid or fatty amine increases with increasing Koh number of substances. However, since the solubility of these compounds in organopolysiloxanes improves with increasing temperature, it is advisable to prepare preparations according to the invention which contain a fatty acid or a fatty amine having 16 or more carbon atoms at a higher temperature, for example at a temperature of 40 to 50 ° C. to be used as so-called hot melts.

Die erfindungsgemäße Zubereitung kann gegebenenfalls noch übliche Zusatzstoffe, wie Esteröle oder organische Phosphate, enthalten. Beispiele geeigneter Esteröle sind die Pelargonsäureester von Tri­methylolpropan oder Pentaerythrit sowie Fettsäureester niedriger Al­kohole, wie Stearinsäurebutylester.The preparation according to the invention can optionally also contain conventional additives, such as ester oils or organic phosphates. Examples of suitable ester oils are the pelargonic acid esters of trimethylolpropane or pentaerythritol and fatty acid esters of lower alcohols, such as butyl stearate.

Beispiele geeigneter Phosphate sind die gegebenenfalls partiellen Ester der Phosphorsäure mit aliphatischen Alkoholen mit 1 bis 20 Kohlenstoffatomen sowie die Phosphorsäureester von alkoxylierten, insbesondere ethoxylierten aliphatischen Alkoholen und Alkylphe­nolen, insbesondere Nonylphenol.Examples of suitable phosphates are the optionally partial esters of phosphoric acid with aliphatic alcohols having 1 to 20 carbon atoms and the phosphoric acid esters of alkoxylated, especially ethoxylated, aliphatic alcohols and alkylphenols, especially nonylphenol.

Die erfindungsgemäßen Zubereitungen werden durch einfaches Vermi­schen, gegebenenfalls bei erhöhter Temperatur, hergestellt. In den folgenden Beispielen werden verschiedene erfindungsgemäße Zuberei­tungen mit Produkten des Standes der Technik hinsichtlich ihrer nähtechnischen Eigenschaften verglichen.The preparations according to the invention are produced by simple mixing, if appropriate at elevated temperature. In the following examples, different preparations according to the invention are compared with products of the prior art with regard to their sewing properties.

Es werden zunächst 5 Zubereitungen hergestellt, deren Zusammenset­zung der folgenden Tabelle zu entnehmen ist. Tabelle Komponenten A/B Zubereitung Dimethylpolysiloxan 1 2 3 4 5 Gew.-Teile 150 mm²s⁻¹ u. 0,7 % OH-Gehalt 100 95 - - - 400 mm²s⁻¹ u. 0,6 % OH-Gehalt - - 95 - - 1000 mm²s⁻¹ u. 0,35 % OH-Gehalt - - - 95 - trimethylsilylendgestoppt 350 mm²s⁻¹ u. 0 % OH-Gehalt - - - - 100 i-Stearinsäure - 5 - - - Kokosfettamin, gehärtet - - 4 - - Kokosfettsäure, gehärtet - - - 5 - Mono/di-tert.butylphosphat - - 1 - - First 5 preparations are produced, the composition of which can be seen in the following table. table Components A / B preparation Dimethylpolysiloxane 1 2nd 3rd 4th 5 Parts by weight 150 mm²s⁻¹ u. 0.7% OH content 100 95 - - - 400 mm²s⁻¹ u. 0.6% OH content - - 95 - - 1000 mm²s⁻¹ u. 0.35% OH content - - - 95 - trimethylsilylendstopst 350 mm²s⁻¹ u. 0% OH content - - - - 100 i-stearic acid - 5 - - - Coconut fatty amine, hardened - - 4th - - Coconut fatty acid, hardened - - - 5 - Mono / di-tert.butyl phosphate - - 1 - -

Dabei werden die einzelnen Bestandteile der Zubereitungen bei einer Temperatur von 45°C vermischt und bis zur klaren Lösung gerührt. Die Zubereitungen werden dann auf Raumtemperatur abgekühlt. Als Ver­gleich dienen die Zubereitungen 6 und 7.The individual components of the preparations are mixed at a temperature of 45 ° C and stirred until a clear solution. The preparations are then cooled to room temperature. Preparations 6 and 7 serve as a comparison.

Zubereitung 6Preparation 6

35 Gew.-Teile eines trimethylsilylendgruppenaufweisenden hydroxyl­gruppenfreien Dimethylpolysiloxans einer Viskosität von 1000 mm²s⁻¹ werden mit 10 Gew.-Teilen Paraffinwachs eines Schmelzpunktes von 52 bis 54°C vermischt und auf 90°C erwärmt. In der erhaltenen Schmelze werden 3 g eines ethoxylierten Kokosfettamins mit einem HLB-Wert von 12 als Emulgator verteilt. In die erhaltene ölige Phase werden 53 Gew.-Teile 90°C heißes Wasser eingerührt. Man läßt die erhaltene Emulsion unter langsamem Rühren erkalten.35 parts by weight of a trimethylsilyl end group-containing hydroxyl group-free dimethylpolysiloxane with a viscosity of 1000 mm²s⁻¹ are mixed with 10 parts by weight of paraffin wax with a melting point of 52 mixed up to 54 ° C and heated to 90 ° C. 3 g of an ethoxylated coconut fatty amine with an HLB value of 12 are distributed in the melt obtained as an emulsifier. 53 parts by weight of 90 ° C. hot water are stirred into the resulting oily phase. The emulsion obtained is allowed to cool with slow stirring.

Zubereitung 7Preparation 7

Die Zubereitung 7 entspricht der Zubereitung gemäß Beispiel 2 der EU-PS 0 056 095.The preparation 7 corresponds to the preparation according to Example 2 of EU PS 0 056 095.

Anwendungstechnische PrüfungApplication test

Für die Versuche wurde ein aus Reißkabel gefertigter PES-Dreifach­zwirn der NXm 100/3 an einer Galette mit Präparationsmitteln ver­sehen.For the experiments, a PES triple twine of the NXm 100/3 made of tear cable was provided with preparation agents on a godet.

A) Auflage in % A) Print run in%

Die Auflage der Zubereitung auf dem Zwirn wurde durch eine Dif­ferenzwägung von behandeltem und unbehandeltem Nähgarn ermittelt.The circulation of the preparation on the thread was determined by differential weighing of treated and untreated sewing thread.

B) FadenspannungB) Thread tension

Die Fadenspannung wurde mit einem Fadenspannungsmeßgerät der Firma Schmidt & Co. KG, Waldkraiburg, Typ DXX, bestimmt.The thread tension was determined with a thread tension measuring device from Schmidt & Co. KG, Waldkraiburg, type DXX.

C) NähtestC) Sewing test

Mit dem behandelten Testfaden (als Oberfaden) werden 12, 14 oder 16 Lagen eines Baumwoll-Cretones dreimal mit maximaler Nähgeschwin­digkeit bis zum Reißen des Fadens vernäht. Die Stärke der zu verwen­denden Nähnadel richtet sich nach dem Titer des Testfadens.The treated test thread (as the upper thread) is used to sew 12, 14 or 16 layers of cotton cretone three times at maximum sewing speed until the thread breaks. The strength of the sewing needle to be used depends on the titer of the test thread.

Wird im Mittel eine Nahtstrecke von mehr als 40 cm erreicht, so wird der Test mit einer um zwei erhöhten Lagenzahl wiederholt. Ist die mittlere erreichte Nahtstrecke dagegen kleiner als 10 cm, wird der Test mit einer um zwei verminderten Lagenzahl wiederholt.If an average seam distance of more than 40 cm is reached, the test is repeated with a number of layers increased by two. If, on the other hand, the mean seam distance reached is less than 10 cm, the test is repeated with a number of layers reduced by two.

Das Ergebnis wird als mittlere erreichte Nahtstrecke in cm unter An­gabe der verwendeten Nadelstärke angegeben.The result is given as the mean seam distance achieved in cm, stating the needle size used.

D) Stick-SlipD) stick-slip

Die Messung des Stick-Slips erfolgt nach folgender Vorschrift:The stick slip is measured according to the following rule:

Versuchsapparatur:Test equipment:

Industrienähmaschine, Rothschild F-Meter und Abzugsgerät mit Meß­kopf 400 g, SchreiberIndustrial sewing machine, Rothschild F-meter and take-off device with measuring head 400 g, recorder

Durchführung:Execution:

Vor Beginn jeder Messung müssen sämtliche Fadenleitorgane, -bremsen und der Meßkopf mit Ethanol sorgfältig gereinigt werden. Anschlie­ßend wird das Rothschild-Gerät wie folgt geeicht:

  • a) Gerät einschalten; da eine Anheizzeit von mindestens 1 h notwen­dig ist, empfiehlt es sich, das F-Meter ständig eingeschaltet zu lassen.
  • b) Nullpunkt t₁ und t₂ einstellen.
  • c) Betriebsartenschalter auf F und Eichen stellen.
  • d) Eichgewicht über den Meßkopf t₁ hängen, wobei darauf zu achten ist, daß der Faden den Reibkörper und den unteren Führungsstift des Meßkopfes tangiert. Mit dem Eichknopf den dem Gewicht ent­sprechenden Eichwert t₁ einstellen.
  • e) Übereinstimmung zwischen F-Meter-Anzeige und Schreiber überprü­fen, gegebenenfalls korrigieren.
Before starting each measurement, all thread guide elements, brakes and the measuring head must be carefully cleaned with ethanol. The Rothschild device is then calibrated as follows:
  • a) switch on the device; Since a heating-up time of at least 1 hour is necessary, it is advisable to keep the F-Meter switched on at all times.
  • b) Set zero point t₁ and t₂.
  • c) Set operating mode switch to F and oak.
  • d) Hang calibration weight over the measuring head t₁, taking care that the thread touches the friction body and the lower guide pin of the measuring head. Use the calibration button to set the calibration value t₁ corresponding to the weight.
  • e) Check the correspondence between the F-meter display and the recorder, correct if necessary.

Zur Messung wird bei der Betriebsartenschalterstellung "Messen t₁" zunächst der Eichfaden (Gütermann T 353) von der Spule über die Fa­denleit- und Bremsorgane einer Nähmaschine sowie über den Meßkopf t₁ mit 6 m/min abgezogen, wobei durch Verändern der Fadenbremse eine Fadenspannung von 130 g einjustiert wird.For measurement, the calibration thread (Gütermann T 353) is first withdrawn from the bobbin via the thread guide and braking elements of a sewing machine and via the measuring head t 1 at 6 m / min, by changing the thread brake a thread tension of 130 g is adjusted.

Nach erneutem Reinigen der Fadenleitorgane, der -bremse und des Meß­kopfes mit Ethanol wird der Testfaden mit 2, 6 bzw. 14 m/min über die gleiche Anordnung abgezogen und die Fadenspannung t₁ am Schrei­ber registriert.After cleaning the thread guide organs, the brake and the measuring head with ethanol, the test thread is drawn off at 2, 6 or 14 m / min over the same arrangement and the thread tension t 1 is registered on the recorder.

Die Schreibermitschrift wird hinsichtlich der mittleren Differenz zwischen Minimal- und Maximalwert der Fadenspannung ausgewertet, wobei eine Beurteilung des Stick-Slip-Verhaltens gemäß der folgenden Tabelle erfolgt: Tabelle Note Amplitude der Fadenspannung Tensograph 1 0 - 2 mm 2 2 - 5 mm 3 5 - 9 mm 4 9 - 13 mm 5 13 - 18 mm 6 > 18 mm Tabelle Zubereitung Auflage (%) Fadenspannung (g) Nähtest (cm) Stick-Slip 1 nicht erfindungsgemäß 4,6 200 - 250 21 5 - 6 2 erfindungsgemäß 4,8 140 - 150 24 2 3 erfindungsgemäß 4,8 140 - 145 26 1 - 2 4 erfindungsgemäß 4,5 135 - 140 28 1 5 nicht erfindungsgemäß 5,0 130 - 150 18 3 - 4 6 nicht erfindungsgemäß 4,7 140 - 150 22 2 7 nicht erfindungsgemäß 4,9 160 - 170 23 2 - 3 The transcript is evaluated with regard to the mean difference between the minimum and maximum value of the thread tension, the stick-slip behavior being assessed in accordance with the following table: table grade Amplitude of tensograph thread tension 1 0 - 2 mm 2nd 2 - 5 mm 3rd 5 - 9 mm 4th 9 - 13 mm 5 13-18 mm 6 > 18 mm preparation Edition (%) Thread tension (g) Sewing test (cm) Stick-slip 1 not according to the invention 4.6 200-250 21st 5 - 6 2 according to the invention 4.8 140-150 24th 2nd 3 according to the invention 4.8 140-145 26 1 - 2 4 according to the invention 4.5 135-140 28 1 5 not according to the invention 5.0 130-150 18th 3-4 6 not according to the invention 4.7 140-150 22 2nd 7 not according to the invention 4.9 160-170 23 2-3

Aus der Tabelle ist ersichtlich, daß die erfindungsgemäßen Zuberei­tungen sowohl niedrige Fadenspannung wie verringerten Fadenbruch und verbesserten Stick-Slip miteinander aufweisen.From the table it can be seen that the preparations according to the invention have both low thread tension as well as reduced thread breakage and improved stick-slip with one another.

Claims (3)

1. Wasserfreie Zubereitung zum Präparieren von Nähgarnen und Näh­zwirnen mit einem Gehalt an Organopolysiloxanen, dadurch gekenn­zeichnet, daß sie aus
65 bis 99 Gew.-% eines Dimethylpolysiloxans mit einer Viskosität von 50 bis 10 000 mm²s⁻¹ bei 25°C und einem Hy­droxylgehalt von 0,3 bis 1,5 Gew.-% und
1 bis 30 Gew.-% einer Fettsäure oder eines Fettamins mit im Mit­tel 8 bis 18 Kohlenstoffatomen und gegebenen­falls
0 bis 5 Gew.-% üblicher Zusatzstoffe
besteht.1. Anhydrous preparation for preparing sewing threads and sewing threads containing organopolysiloxanes, characterized in that they consist of
65 to 99 wt .-% of a dimethylpolysiloxane with a viscosity of 50 to 10,000 mm²s⁻¹ at 25 ° C and a hydroxyl content of 0.3 to 1.5 wt .-% and
1 to 30 wt .-% of a fatty acid or a fatty amine with an average of 8 to 18 carbon atoms and optionally
0 to 5% by weight of conventional additives
consists. 2. Zubereitung nach Anspruch 1 dadurch gekennzeichnet, daß sie aus
90 bis 99 Gew.-% eines Dimethylpolysiloxans der in Anspruch 1 ge­gebenen Definition und
1 bis 5 Gew.-% einer Fettsäure oder eines Fettamins der in An­spruch 1 gegebenen Definition und gegebenenfalls
0 bis 5 Gew.-% üblicher Zusatzstoffe
besteht.2. Preparation according to claim 1, characterized in that it consists of
90 to 99% by weight of a dimethylpolysiloxane of the definition given in claim 1 and
1 to 5 wt .-% of a fatty acid or a fatty amine of the definition given in claim 1 and optionally
0 to 5% by weight of conventional additives
consists. 3. Zubereitung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sie ein Dimethylpolysiloxan mit einem Hydroxylgehalt von 0,4 bis 0,8 Gew.-% enthält.3. Preparation according to claim 1 or 2, characterized in that it contains a dimethylpolysiloxane with a hydroxyl content of 0.4 to 0.8 wt .-%.
EP89107311A 1988-05-05 1989-04-22 Waterfree composition for lubricating sewing yarns Expired - Lifetime EP0340575B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815231 1988-05-05
DE3815231A DE3815231C1 (en) 1988-05-05 1988-05-05

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EP0340575A1 true EP0340575A1 (en) 1989-11-08
EP0340575B1 EP0340575B1 (en) 1992-07-08

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EP (1) EP0340575B1 (en)
DE (2) DE3815231C1 (en)
ES (1) ES2034467T3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE4133358A1 (en) * 1991-10-09 1993-04-15 Pfersee Chem Fab AQUEOUS COMPOSITIONS WITH NITROGEN POLYSILOXANES

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE3939549A1 (en) * 1989-11-30 1991-06-06 Henkel Kgaa Lubricant for textiles, partic. for thread during high speed mfr. - or processing contains alkyl acrylate or methacrylate homo-polymer or copolymer of specified min. limiting viscosity
DE10300980A1 (en) 2003-01-14 2004-07-22 Cht R. Beitlich Gmbh pH-independent finishing of sewing threads using the pull-out process
US8226443B2 (en) * 2007-04-20 2012-07-24 Hewlett-Packard Development Company, L.P. Interconnect detection system

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FR2096591A1 (en) * 1970-06-30 1972-02-18 Pfersee Chem Fab
EP0063311A2 (en) * 1981-04-18 1982-10-27 Th. Goldschmidt AG Substantive preparation agent for yarns or twisted yarns
EP0100826A2 (en) * 1982-05-26 1984-02-22 Toray Industries, Inc. Acrylic fibers for producing carbon fibers

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US4246423A (en) * 1979-10-22 1981-01-20 Sws Silicones Corporation Silicone polyether copolymers
DE3100803A1 (en) * 1981-01-13 1982-08-05 Wacker-Chemie GmbH, 8000 München AGENT FOR INCREASING THE SLIDABILITY OF ORGANIC FIBERS
JPS60181368A (en) * 1984-02-28 1985-09-17 東洋紡績株式会社 Spinning oil agent for false twisting processing

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FR2096591A1 (en) * 1970-06-30 1972-02-18 Pfersee Chem Fab
EP0063311A2 (en) * 1981-04-18 1982-10-27 Th. Goldschmidt AG Substantive preparation agent for yarns or twisted yarns
EP0100826A2 (en) * 1982-05-26 1984-02-22 Toray Industries, Inc. Acrylic fibers for producing carbon fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133358A1 (en) * 1991-10-09 1993-04-15 Pfersee Chem Fab AQUEOUS COMPOSITIONS WITH NITROGEN POLYSILOXANES
US5310783A (en) * 1991-10-09 1994-05-10 Ciba-Geigy Corporation Aqueous compositions comprising nitrogen-containing polysiloxanes

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DE58901798D1 (en) 1992-08-13
EP0340575B1 (en) 1992-07-08
ES2034467T3 (en) 1993-04-01
US4990267A (en) 1991-02-05

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