EP0658640A1 - Monofilamentary synthetic fiber - Google Patents
Monofilamentary synthetic fiber Download PDFInfo
- Publication number
- EP0658640A1 EP0658640A1 EP94115909A EP94115909A EP0658640A1 EP 0658640 A1 EP0658640 A1 EP 0658640A1 EP 94115909 A EP94115909 A EP 94115909A EP 94115909 A EP94115909 A EP 94115909A EP 0658640 A1 EP0658640 A1 EP 0658640A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- synthetic fiber
- polyamide
- polypropylene
- fiber according
- synthetic
- 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.)
- Withdrawn
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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
Definitions
- the invention relates to monofilament synthetic fibers based on polyamide.
- Monofilament synthetic fibers made from polyamide in particular from polyamide 6 and polyamide 66, are known (e.g. Hansjürgen Saechtling: Plastics Pocket Book, 22nd edition 1983, page 286 ff., Carl Hanser-Verlag, Kunststoff). These monofilaments are used, for example, for the production of brushes and for the production of fabrics and screens for paper machines. Since such monofilaments are subjected to particularly high mechanical and chemical stresses in use, there is an effort to improve such synthetic fibers based on polyamide with regard to their mechanical and chemical properties.
- the object of the invention is therefore to provide a synthetic fiber based on polyamide, which has better mechanical and chemical properties than synthetic fibers made of pure polyamide.
- Polypropylene synthetic fibers made of polyamide can be significantly improved in many properties.
- water absorption is reduced and chemical resistance is increased.
- mechanical stiffness is increased, both dry and wet, and a longer brush life is achieved under high loads.
- a composition of 1 to 60% polypropylene and ad 100% polyamide has proven to be particularly advantageous, polyamide 6 and / or polyamide 66 preferably being used.
- the properties of the monofilament synthetic fiber according to the invention can be significantly improved by adding an adhesion promoter (compatibilizer), for example maleic acid-grafted polypropylene, acrylated polypropylene, maleic acid-grafted SEBS, ionomers or ethylene-acrylic acid copolymers.
- an adhesion promoter for example maleic acid-grafted polypropylene, acrylated polypropylene, maleic acid-grafted SEBS, ionomers or ethylene-acrylic acid copolymers.
- a composition of 20 to 40% polypropylene, 5 to 10% adhesion promoter and ad 100% polyamide has proven to be particularly advantageous, with 20-30% polypropylene and 5 to 10% adhesion promoter being particularly advantageous.
- Synthetic fiber is particularly suitable as an artificial bristle or bundle of synthetic bristles, since much better mechanical and chemical properties can be achieved than synthetic bristles made of polyamide.
- a synthetic fiber according to the invention can advantageously also be used in fabrics or sieves (e.g. paper machine sieves), the water absorption, which is significantly lower than that of pure polyamide fibers, and thus increased dimensional stability of the sieves and fabrics being particularly important.
- fabrics or sieves e.g. paper machine sieves
- the water absorption which is significantly lower than that of pure polyamide fibers, and thus increased dimensional stability of the sieves and fabrics being particularly important.
- synthetic fiber I A state-of-the-art synthetic fiber made of pure polyamide 6 was first examined. This synthetic fiber is referred to below as synthetic fiber I.
- synthetic fiber III 70% polyamide 6, 20% polypropylene and 10% maleic acid-grafted polypropylene (Exxelor PO 1015) as an adhesion promoter.
- This synthetic fiber is referred to below as synthetic fiber III.
- the synthetic fibers II and III according to the invention have significantly better chemical properties than the conventional synthetic fibers I, the residual strengths of the synthetic fibers after storage in formic acid are significantly better.
- the synthetic fibers according to the invention have a significantly longer service life than the known synthetic fiber made of pure polyamide. This is essential improved behavior against heat aging of the monofilaments according to the invention compared to known polyamide monofilaments.
- a synthetic fiber based on polyamide 66 with a polypropylene additive is particularly suitable, and moreover a combination of polyamide and polypropylene, possibly with the addition of an adhesion promoter.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Die Erfindung betrifft monofile Kunstfasern auf Polyamidbasis.The invention relates to monofilament synthetic fibers based on polyamide.
Monofile Kunstfasern aus Polyamid, insbesondere aus Polyamid 6 und Polyamid 66 sind bekannt (z.B. Hansjürgen Saechtling: Kunststofftaschenbuch, 22. Ausgabe 1983, Seite 286 ff., Carl Hanser-Verlag, München). Diese Monofile werden beispielsweise zur Herstellung von Bürsten und zur Produktion von Geweben sowie Sieben für Papiermaschinen eingesetzt. Da derartige Monofile im Einsatz insbesondere stark mechanisch und chemisch beansprucht werden, besteht das Bestreben, derartige Kunstfasern auf Polyamidbasis im Hinblick auf ihre mechanischen und chemischen Eigenschaften zu verbessern.Monofilament synthetic fibers made from polyamide, in particular from polyamide 6 and polyamide 66, are known (e.g. Hansjürgen Saechtling: Plastics Pocket Book, 22nd edition 1983, page 286 ff., Carl Hanser-Verlag, Munich). These monofilaments are used, for example, for the production of brushes and for the production of fabrics and screens for paper machines. Since such monofilaments are subjected to particularly high mechanical and chemical stresses in use, there is an effort to improve such synthetic fibers based on polyamide with regard to their mechanical and chemical properties.
Aufgabe der Erfindung ist es deshalb, eine Kunstfaser auf Polyamidbasis anzugeben, welche bessere mechanische und chemische Eigenschaften aufweist als Kunstfasern aus reinem Polyamid.The object of the invention is therefore to provide a synthetic fiber based on polyamide, which has better mechanical and chemical properties than synthetic fibers made of pure polyamide.
Diese Aufgabe wird erfindungsgemäß mit einer monofilen Kunstfaser der eingangs bezeichneten Art durch eine Mischung aus Polyamid und Polypropylen gelöst.This object is achieved according to the invention with a monofilament synthetic fiber of the type mentioned at the beginning by a mixture of polyamide and polypropylene.
Es wurde überraschend gefunden, daß durch die Beimischung von Polypropylen Kunstfasern aus Polyamid in vielen Eigenschaften deutlich verbessert werden können. So wird insbesondere die Wasseraufnahme verringert und die chemische Beständigkeit erhöht. Darüber hinaus wird vor allem die mechanische Steifheit sowohl trocken als auch naß vergrößert und eine höhere Bürstenstandzeit bei hoher Beanspruchung erreicht.It was surprisingly found that through the admixture Polypropylene synthetic fibers made of polyamide can be significantly improved in many properties. In particular, water absorption is reduced and chemical resistance is increased. In addition, the mechanical stiffness is increased, both dry and wet, and a longer brush life is achieved under high loads.
Als besonders vorteilhaft hat sich eine Zusammensetzung von 1 bis 60 % Polypropylen und ad 100 % Polyamid herausgestellt, wobei vorzugsweise Polyamid 6 und/oder Polyamid 66 eingesetzt wird.A composition of 1 to 60% polypropylene and ad 100% polyamide has proven to be particularly advantageous, polyamide 6 and / or polyamide 66 preferably being used.
Die Eigenschaften der erfindungsgemäßen monofilen Kunstfaser lassen sich noch wesentlich durch die Zugabe eines Haftvermittlers (Verträglichkeitsvermittlers) beispielsweise maleinsäuregepfropftes Polypropylen, acryliertes Polypropylen, maleinsäuregepfropftes SEBS, Ionomere oder Ethylenacrylsäure-Copolymere, verbessern.The properties of the monofilament synthetic fiber according to the invention can be significantly improved by adding an adhesion promoter (compatibilizer), for example maleic acid-grafted polypropylene, acrylated polypropylene, maleic acid-grafted SEBS, ionomers or ethylene-acrylic acid copolymers.
Als besonders vorteilhaft hat sich eine Zusammensetzung von 20 bis 40 % Polypropylen, 5 bis 10 % Haftvermittler und ad 100 % Polyamid herausgestellt, wobei insbesondere 20 - 30 % Polypropylen und 5 bis 10 % Haftvermittler besonders vorteilhaft sind.A composition of 20 to 40% polypropylene, 5 to 10% adhesion promoter and ad 100% polyamide has proven to be particularly advantageous, with 20-30% polypropylene and 5 to 10% adhesion promoter being particularly advantageous.
Es hat sich herausgestellt, daß eine derartige monofile Kunstfaser ganz besonders als Kunstborste oder Kunstborstenbündel geeignet ist, da gegenüber Kunstborsten aus Polyamid wesentlich bessere mechanische und chemische Eigenschaften erreichbar sind.It has been found that such a monofilament Synthetic fiber is particularly suitable as an artificial bristle or bundle of synthetic bristles, since much better mechanical and chemical properties can be achieved than synthetic bristles made of polyamide.
Vorteilhaft läßt sich eine erfindungsgemäße Kunstfaser auch in Geweben oder Sieben (z.B. Papiermaschinensieben) verwenden, wobei insbesondere die gegenüber reinem Polyamidfasern wesentlich geringere Wasseraufnahme und damit erhöhte Dimensionsstabilität der Siebe und Gewebe wesentlich ist.A synthetic fiber according to the invention can advantageously also be used in fabrics or sieves (e.g. paper machine sieves), the water absorption, which is significantly lower than that of pure polyamide fibers, and thus increased dimensional stability of the sieves and fabrics being particularly important.
Die Erfindung ist nachstehend anhand von Ausführungsbeispielen beispielsweise näher erläutert:The invention is explained in more detail below on the basis of exemplary embodiments, for example:
Es wurde zunächst eine dem Stand der Technik entsprechende Kunstfaser aus reinem Polyamid 6 untersucht. Diese Kunstfaser wird nachfolgend als Kunstfaser I bezeichnet.A state-of-the-art synthetic fiber made of pure polyamide 6 was first examined. This synthetic fiber is referred to below as synthetic fiber I.
Demgegenüber wurde eine erfindungsgemäße monofile Kunstfaser mit folgender Zusammensetzung untersucht:
80 % Polyamid 6, 20 % Polypropylen,
diese Faser wird nachfolgend als Kunstfaser II bezeichnet.In contrast, a monofilament synthetic fiber according to the invention with the following composition was examined:
80% polyamide 6, 20% polypropylene,
this fiber is referred to below as synthetic fiber II.
Darüber hinaus wurde eine erfindungsgemäße monofile Kunstfaser mit folgender Zusammensetzung untersucht:In addition, a monofilament synthetic fiber according to the invention with the following composition was examined:
70 % Polyamid 6, 20 % Polypropylen und 10 % maleinsäuregepfropftes Polypropylen (Exxelor PO 1015) als Haftvermittler. Diese Kunstfaser wird nachfolgend als Kunstfaser III bezeichnet.70% polyamide 6, 20% polypropylene and 10% maleic acid-grafted polypropylene (Exxelor PO 1015) as an adhesion promoter. This synthetic fiber is referred to below as synthetic fiber III.
Diese Kunstfasern wurden zunächst im Hinblick auf ihre Wasseraufnahme untersucht, die Ergebnisse sind in der nachfolgenden Tabelle 1 dargestellt:
Darüber hinaus wurde die chemische Beständigkeit der vorgenannten Kunstfasern in 20 %-iger bzw. 50 %-iger Ameisensäure in Zeitabhängigkeit untersucht, die Ergebnisse sind in der nachfolgenden Tabelle 2 dargestellt:
Wie den in der Tabelle 2 aufgeführten Ergebnissen zu entnehmen ist, weisen die erfindungsgemäßen Kunstfasern II und III gegenüber den herkömmlichen Kunstfasern I wesentlich bessere chemische Eigenschaften auf, die Restfestigkeiten der Kunstfasern nach Lagerung in Ameisensäure sind deutlich besser.As can be seen from the results listed in Table 2, the synthetic fibers II and III according to the invention have significantly better chemical properties than the conventional synthetic fibers I, the residual strengths of the synthetic fibers after storage in formic acid are significantly better.
Schließlich wurden auch die mechanischen Eigenschaften der erfindungsgemäßen Kunstfasern, insbesondere in Hinblick auf ihre Standzeit in einer Rundbürste untersucht, und zwar anhand eines Bürstversuches, die Ergebnisse sind in der nachfolgenden Tabelle 3 dargestellt:
Wie den in der Tabelle 3 dargestellten Versuchsergebnissen deutlich zu entnehmen ist, weisen die erfindungsgemäßen Kunstfasern eine deutlich höhere Standzeit als die bekannte Kunstfaser aus reinem Polyamid auf. Dies ist auf ein wesentlich verbessertes Verhalten gegen Wärmealterung der erfindungsgemäßen Monofile im Vergleich zu bekannten Polyamid-Monofilen zurückzuführen.As can clearly be seen from the test results shown in Table 3, the synthetic fibers according to the invention have a significantly longer service life than the known synthetic fiber made of pure polyamide. This is essential improved behavior against heat aging of the monofilaments according to the invention compared to known polyamide monofilaments.
Natürlich ist die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt. So ist insbesondere auch eine Kunstfaser auf Polyamid 66 Basis mit Polypropylen-Zusatz geeignet und darüber hinaus generell eine Kombination von Polyamid und Polypropylen, ggf. mit Zusatz eines Haftvermittlers.Of course, the invention is not limited to the exemplary embodiments shown. For example, a synthetic fiber based on polyamide 66 with a polypropylene additive is particularly suitable, and moreover a combination of polyamide and polypropylene, possibly with the addition of an adhesion promoter.
Claims (9)
gekennzeichnet durch
1 bis 60 % Polypropylen und ad 100 % Polyamid.Synthetic fiber according to claim 1,
marked by
1 to 60% polypropylene and ad 100% polyamide.
gekennzeichnet durch
einen Einsatz von Polyamid 6 und/oder Polyamid 66.Synthetic fiber according to claim 1 or 2,
marked by
use of polyamide 6 and / or polyamide 66.
gekennzeichnet durch
eine Zugabe eines Haftvermittlers (Verträglichkeitsvermittlers).Synthetic fiber according to claim 1 or one of the following,
marked by
an addition of an adhesion promoter (compatibility agent).
gekennzeichnet durch
1 bis 20 % Haftvermittler (Verträglichkeitsvermittler).Synthetic fiber according to claim 4,
marked by
1 to 20% adhesion promoter (compatibility agent).
dadurch gekennzeichnet,
daß als Verträglichkeitsvermittler maleinsäuregepfropftes Polypropylen, acryliertes Polypropylen, maleinsäuregepfropftes SEBS, Ionomere oder Ethylacrylsäure-Copolymere eingesetzt werden.Synthetic fiber according to claim 4,
characterized,
that as a compatibilizer, maleic acid-grafted polypropylene, acrylated polypropylene, maleic acid-grafted SEBS, ionomers or ethyl acrylic acid copolymers can be used.
20 - 40 % Polypropylen,
5 - 10 % Haftvermittler und
ad 100 % Polyamid.Synthetic fiber according to claim 1 or one of the following, characterized by
20 - 40% polypropylene,
5 - 10% adhesion promoter and
ad 100% polyamide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4343368 | 1993-12-18 | ||
DE19934343368 DE4343368A1 (en) | 1993-12-18 | 1993-12-18 | Monofilament synthetic fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0658640A1 true EP0658640A1 (en) | 1995-06-21 |
Family
ID=6505455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94115909A Withdrawn EP0658640A1 (en) | 1993-12-18 | 1994-10-08 | Monofilamentary synthetic fiber |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0658640A1 (en) |
DE (1) | DE4343368A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829928A1 (en) * | 1998-07-04 | 2000-01-05 | Hahl Erwin Gmbh | Synthetic monofilaments for brush bristles or papermaking fourdriniers/blankets |
US6132839A (en) * | 1998-12-04 | 2000-10-17 | Basf Corporation | Alloy fibers with reduced heatset shrinkage |
US7015283B2 (en) | 2003-10-10 | 2006-03-21 | Exxonmobil Chemical Patents Inc. | Compositions of polypropylene and polyamide |
US11987939B2 (en) | 2014-03-27 | 2024-05-21 | Polytex Sportbeläge Produktions—GmbH | Artificial turf and production method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19533815A1 (en) * | 1995-09-13 | 1997-03-20 | Coronet Werke Gmbh | Toothbrush and process for its manufacture |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793822A (en) * | 1971-07-14 | 1974-02-26 | Momoi Fishing Net Mfg Co Ltd | Fishing net |
EP0129317A2 (en) * | 1983-06-15 | 1984-12-27 | Imperial Chemical Industries Plc | Process for producing a polyamide fibre & novel rough-surfaced polyamide fibres produced by such process |
JPS60134013A (en) * | 1983-12-17 | 1985-07-17 | Chisso Corp | Polypropylene fiber |
EP0186108A2 (en) * | 1984-12-18 | 1986-07-02 | E.I. Du Pont De Nemours And Company | Delustered nylon fiber containing segmented striations of polypropylene |
JPH0489853A (en) * | 1990-08-03 | 1992-03-24 | Tonen Chem Corp | Polyolefin composition |
-
1993
- 1993-12-18 DE DE19934343368 patent/DE4343368A1/en not_active Withdrawn
-
1994
- 1994-10-08 EP EP94115909A patent/EP0658640A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793822A (en) * | 1971-07-14 | 1974-02-26 | Momoi Fishing Net Mfg Co Ltd | Fishing net |
EP0129317A2 (en) * | 1983-06-15 | 1984-12-27 | Imperial Chemical Industries Plc | Process for producing a polyamide fibre & novel rough-surfaced polyamide fibres produced by such process |
JPS60134013A (en) * | 1983-12-17 | 1985-07-17 | Chisso Corp | Polypropylene fiber |
EP0186108A2 (en) * | 1984-12-18 | 1986-07-02 | E.I. Du Pont De Nemours And Company | Delustered nylon fiber containing segmented striations of polypropylene |
JPH0489853A (en) * | 1990-08-03 | 1992-03-24 | Tonen Chem Corp | Polyolefin composition |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 8535, Derwent World Patents Index; Class A, AN 85-212633 * |
DATABASE WPI Section Ch Week 9218, Derwent World Patents Index; Class A, AN 92-147699 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829928A1 (en) * | 1998-07-04 | 2000-01-05 | Hahl Erwin Gmbh | Synthetic monofilaments for brush bristles or papermaking fourdriniers/blankets |
DE19829928C2 (en) * | 1998-07-04 | 2003-12-11 | Hahl Filaments Gmbh & Co Kg | Monofilament synthetic fibers and their use |
US6132839A (en) * | 1998-12-04 | 2000-10-17 | Basf Corporation | Alloy fibers with reduced heatset shrinkage |
US7015283B2 (en) | 2003-10-10 | 2006-03-21 | Exxonmobil Chemical Patents Inc. | Compositions of polypropylene and polyamide |
US7402628B2 (en) | 2003-10-10 | 2008-07-22 | Exxonmobil Chemical Patents Inc. | Compositions of polypropylene and polyamide |
US11987939B2 (en) | 2014-03-27 | 2024-05-21 | Polytex Sportbeläge Produktions—GmbH | Artificial turf and production method |
Also Published As
Publication number | Publication date |
---|---|
DE4343368A1 (en) | 1995-06-22 |
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