EP0434118B1 - Verwendung von Aminoxiden als antistatischen Agenzien - Google Patents

Verwendung von Aminoxiden als antistatischen Agenzien Download PDF

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Publication number
EP0434118B1
EP0434118B1 EP19900203230 EP90203230A EP0434118B1 EP 0434118 B1 EP0434118 B1 EP 0434118B1 EP 19900203230 EP19900203230 EP 19900203230 EP 90203230 A EP90203230 A EP 90203230A EP 0434118 B1 EP0434118 B1 EP 0434118B1
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European Patent Office
Prior art keywords
aminoxide
fabrics
alkyl
carbon atoms
weight
Prior art date
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Expired - Lifetime
Application number
EP19900203230
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English (en)
French (fr)
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EP0434118A3 (en
EP0434118B2 (de
EP0434118A2 (de
Inventor
Hendrik Johannes J. Connotte
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Diversey Inc
Original Assignee
Unilever PLC
Unilever NV
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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
    • 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
    • D06M13/144—Alcohols; Metal alcoholates
    • 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
    • D06M13/388—Amine oxides

Definitions

  • the present invention relates to the use of aminoxide as antistatic agents for reducing the propensity of fabrics to accumulate electrostatic charges.
  • Electrostatic charges on fabrics is also undesirable in manufacturing processes of sheets, films, filaments, etc, as the charges tend to cause the articles to cling together or to the processing equipment. Electrostatic charges are particularly dangerous in the manufacturing process of integrated circuits, especially of the MOS-type, as these may be irreversibly damaged by such charges. It is therefore essential that the protective clothing which is worn by the laborers in this branch of industry is treated in such way that accumulation of electrostatic charges is prevented or effectively reduced.
  • US-A-4014,800 corresponding to FR-A-2230790 discloses lubricating compositions for fibres for use in the manufacturing and processing of those fibres by such methods as knitting and weaving.
  • the lubricant compositions incorporate amine oxides as anti-static agents.
  • GB-A-1066763 discloses amine oxides and a number of uses of them including use as softening agents for textiles and as shampoos with anti-static effect.
  • US-A-3447956 equivalent to FR-A-1545719 teaches a process of introducing amine oxide, which is dissolved in lower alkanols, into fibrous material and then causing the amine oxide to swell the fibres as a means of strengthening the material.
  • the present invention relates to the use of aminoxides for treating fabrics in order to reduce the propensity of the fabrics to accumulate electrostatic charges, especially when the fabrics comprise polyester.
  • the invention provides a method for reducing the propensity of fabrics to accumulate electrostatic charges which comprises treating the fabrics with an aqueous liquor formed by adding to water an aqueous antistatic composition which comprises 10-80% by weight of aminoxide and 2.5-20% by weight of a lower alkanol.
  • the invention provides an aqueous antistatic composition comprising:
  • Aminoxides are well-known surfactants having a cationic character at low and neutral pH and a noionic character at alkaline pH.
  • Aminoxides which are advantageously used in the present invention correspond to the general formula: wherein R 1 and R 3 are independently CH 3 or C 2 H 4 OH and R 2 is an alkyl group having 12 to 18 carbon atoms.
  • R 2 is an alkyl group having 14 to 16 carbon atoms.
  • Such aminoxides are commercially available, for instance from AKZO Chemie under the trade name "Aromox”. They are supplied as solutions having an active content of 30 to 40% by weight in wa- ter/isopropanol (50/50) or in water.
  • the antistatic compositions that are used in the process of the present invention are aqueous compositions comprising 10 to 80% by weight of aminoxide and 2.5 to 20% by weight of a lower alkanol, preferably isopropanol. Preferably they comprise 20 to 40% aminoxide and 5 to 10% isopropanol.
  • compositions in which the aminoxide is a mixture of a dimethyl alkyl aminoxide and a bis-(2-hydroxyethyl) alkyl aminoxide, wherein the alkyl groups comprise 12 to 18 carbon atoms, exhibit a more pronounced antistatic effect than compositions which contain either one of these aminoxides alone.
  • the antistatic compositions used according to the invention further comprise an anti-foam agent, preferably a silicone oil, in an amount of 0.01 to 1.0 wt%, calculated on the total composition.
  • an anti-foam agent preferably a silicone oil
  • compositions may be used after or in the rinse cycle of a wash process for the treatment of fabrics in an amount of 1 to 100 g, preferably 3 to 20 g per kg wash load.
  • process of the present invention is primarily suitable for industrial applications, such as the industrial cleaning of overalls.
  • the anti-static compositions may also be used in the pre-wash cycle of such a fabric washing process.
  • the number of fluffs was significantly reduced. This proved to be a significant advantage for the washing of coloured linen for surgery rooms were conventional wash processes inevitably leave a large number of fluffs which have to be removed manually.
  • Aromox T/12, DMCD and DM16D contain 40 % by weight of aminoxide in a solvent mixture consisting of 50 % isopropanol and 50 % water.
  • Aromox DMMCD-W and DM14D-W contain 30 % by weight of aminoxide in water.
  • the surface resistivity of the overalls was then determined by measuring the resistance of the fabric according to British Standard 5958:1980 using a Philips Model 262 resistivity meter. The results are also shown in Table I. In all cases, the chemical damage which the fabrics incurred after several washes was much less than when a conventional quaternary ammonium antistatic composition was used.
  • Examples 1 to 21 all illustrate the use aspect of the present invention, Examples 1 to 9 illustrating the use of single aminoxides and Examples 10 to 21 illustrating the use of combinations of aminoxides which give rise to synergistic antistatic effects.
  • Examples 10 to 13 and 16 to 21 are illustrative of antistatic compositions within the scope of the third, composition, aspect of the invention, the methods of use of these particular compositions being illustrative of methods within the scope of the second, method, aspect of the invention.
  • an anti-static composition according to the invention was compared with the effect caused by a conventional anti-static agent of the quaternary ammonium type.
  • Samples of three different types of polyester fabrics were soaked for 10 minutes at 40 °C and at a liquid to cloth ratio of 20 to 1, using 2 g anti- static agent per litre. Subsequently, the samples were dried for 20 minutes at 60 ° C. This procedure was repeated 25 times and then the tensile strength of a test cloth having a width of 5 cm was measured (in kg) on a Louis Schopper tensile strength meter Type MT34. The tensile strength is believed to be a good measure of the chemical damage due to the anti-static treatment.
  • the results for three different polyester fabrics are shown below.
  • Example 20 leads to less chemical damage on all three different types of polyester fabric then the conventional anti-static agent of the quaternary ammonium type.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (15)

1. Verwendung von Aminoxid zum Behandeln von Geweben zur Verminderung der Neigung der Gewebe zur Akkumulation elektrostatischer Ladungen.
2. Verwendung nach Anspruch 1, wobei die Gewebe Polyester enthalten.
3. Verwendung nach Anspruch 1 oder 2, wobei das Aminoxid eine Mischung eines Dimethylalkylaminoxids und eines Bis-(2-hydroxyethyl)-alkylaminoxids, worin die Alkylgruppen 12 bis 18 Kohlenstoffatome umfassen, ist.
4. Verfahren zur Verminderung der Neigung von Geweben zur Akkumulation elektrostatischer Ladungen durch Behandeln der Gewebe mit einer wäßrigen Flüssigkeit, die durch Eintragen einer antistatischen Zusammensetzung, umfassend
10 bis 80 Gew.-% Aminoxid und
2,5 bis 20 Gew.-% eines niedrigen Alkanols
in Wasser gebildet wurde.
5. Verfahren nach Anspruch 4, wobei die Behandlung der Gewebe während oder nach dem Spülzyklus eines Waschverfahrens stattfindet.
6. Verfahren nach einem der vorhergehenden Ansprüche, wobei das Aminoxid die Formel
Figure imgb0005
besitzt, wobei R1 und R3 unabhängig voneinander CH3 oder C2 H4 OH bedeuten und R2 eine Alkylgruppe mit 12 bis 18 Kohlenstoffatomen darstellt.
7. Verfahren nach Anspruch 6, wobei R2 eine Alkylgruppe mit 14 bis 16 Kohlenstoffatomen ist.
8. Verfahren nach einem der Ansprüche 4 bis 7, wobei das Aminoxid eine Mischung eines Dimethylalkylaminoxids und eines Bis-(2-hydroxyethyl)-alkylaminoxids, worin die Alkylgruppen 12 bis 18 Kohlenstoffatome umfassen, ist.
9. Verfahren nach einem der Ansprüche 4 bis 8, wobei das niedrige Alkanol Isopropanol ist.
10. Verfahren nach einem der Ansprüche 4 bis 9, wobei die Flüssigkeit des weiteren ein Anti-Schaummittel umfaßt.
11. Verfahren nach Anspruch 10, wobei das Anti-Schaummittel ein Siliconöl ist.
12. Wäßrige antistatische Zusammensetzung, die
10 bis 80 Gew.-% Aminoxid und
2,5 bis 20 Gew.-% eines niedrigen Alkohols
umfaßt, wobei das Aminoxid eine Mischung eines Dimethylalkylaminoxids und eines Bis-(2-hydroxyethyl)-alkylaminoxids, worin die Alkylgruppen 12 bis 18 Kohlenstoffatome umfassen, ist.
13. Antistatische Zusammensetzung nach Anspruch 12, worin das niedrige Alkanol Isopropanol ist.
14. Antistatische Zusammensetzung nach Anspruch 12 oder Anspruch 13, die des weiteren ein Anti-Schaummittel umfaßt.
15. Antistatische Zusammensetzung nach Anspruch 14, wobei das Anti-Schaummittel ein Siliconöl ist.
EP19900203230 1989-12-18 1990-12-07 Verwendung von Aminoxiden als antistatischen Agenzien Expired - Lifetime EP0434118B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898928512A GB8928512D0 (en) 1989-12-18 1989-12-18 Antistatic compositions
GB8928512 1989-12-18

Publications (4)

Publication Number Publication Date
EP0434118A2 EP0434118A2 (de) 1991-06-26
EP0434118A3 EP0434118A3 (en) 1991-09-11
EP0434118B1 true EP0434118B1 (de) 1995-11-22
EP0434118B2 EP0434118B2 (de) 1998-10-28

Family

ID=10668098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203230 Expired - Lifetime EP0434118B2 (de) 1989-12-18 1990-12-07 Verwendung von Aminoxiden als antistatischen Agenzien

Country Status (9)

Country Link
EP (1) EP0434118B2 (de)
AU (1) AU633166B2 (de)
CA (1) CA2032184C (de)
DE (1) DE69023747T3 (de)
ES (1) ES2081345T5 (de)
FI (1) FI98735C (de)
GB (1) GB8928512D0 (de)
NZ (1) NZ236496A (de)
ZA (1) ZA9010182B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015214056A1 (de) * 2015-07-24 2017-01-26 Henkel Ag & Co. Kgaa Waschkraftverstärkende Hydroxyaminoxide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538711A (en) * 1939-10-30 1941-08-13 Tootal Broadhurst Lee Co Ltd Improvements in treating materials with alkaline reagents and reagents therefor
GB1066763A (en) * 1964-05-11 1967-04-26 Marconi Products Ltd Production and'use of amine oxide surface-active agents
US3501335A (en) * 1965-11-26 1970-03-17 Lever Brothers Ltd Fabric conditioner
FR1545719A (fr) * 1966-09-02 1968-11-15 Eastman Kodak Co Amélioration de la résistance mécanique des produits fibreux, et nouveaux produits fibreux à résistance améliorée
ES426477A1 (es) * 1973-05-26 1976-07-01 Hoechst Ag Procedimiento para la preparacion de fibras sinteticas.

Also Published As

Publication number Publication date
EP0434118A3 (en) 1991-09-11
EP0434118B2 (de) 1998-10-28
AU633166B2 (en) 1993-01-21
CA2032184C (en) 1999-11-30
DE69023747D1 (de) 1996-01-04
FI906100A (fi) 1991-06-19
FI906100A0 (fi) 1990-12-12
FI98735C (fi) 1997-08-11
EP0434118A2 (de) 1991-06-26
ZA9010182B (en) 1992-08-26
GB8928512D0 (en) 1990-02-21
ES2081345T5 (es) 1999-02-16
DE69023747T3 (de) 1999-04-15
FI98735B (fi) 1997-04-30
AU6806790A (en) 1991-06-20
ES2081345T3 (es) 1996-03-01
CA2032184A1 (en) 1991-06-19
NZ236496A (en) 1992-08-26
DE69023747T2 (de) 1996-04-18

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