EP0434118B2 - Utilisation d'aminoxides comme agents antistatiques - Google Patents

Utilisation d'aminoxides comme agents antistatiques Download PDF

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Publication number
EP0434118B2
EP0434118B2 EP19900203230 EP90203230A EP0434118B2 EP 0434118 B2 EP0434118 B2 EP 0434118B2 EP 19900203230 EP19900203230 EP 19900203230 EP 90203230 A EP90203230 A EP 90203230A EP 0434118 B2 EP0434118 B2 EP 0434118B2
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EP
European Patent Office
Prior art keywords
aminoxide
fabrics
alkyl
weight
antistatic composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19900203230
Other languages
German (de)
English (en)
Other versions
EP0434118A3 (en
EP0434118B1 (fr
EP0434118A2 (fr
Inventor
Hendrik Johannes J. Connotte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diversey Inc
Original Assignee
Unilever PLC
Unilever NV
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Publication date
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
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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 according to claim 1, especially when the fabrics comprise polyester.
  • the invention provides a method for reducing the propensity of fabrics to accumulate electrostatic charges according to claim 3.
  • the invention provides an aqueous antistatic composition comprising:
  • Aminoxides are well-known surfactants having a cationic character at low and neutral pH and a nonionic 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 water/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 10 to 21 all illustrate the use aspect of the present invention, Examples 1 to 9 which are not according to the invention 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 22 Polyester Fabric I. Anti-static Agent: None Conventional Example 20 Tensile Strength: in kg/5 cm 140.0 137.2 139.5 % difference 0.0 2.0 0.4 Example 23 - Polyester Fabric II Anti-static Agent: None Conventional Example 20 Tensile Strength: in kg/5 cm 116.5 112.6 113.4 % difference 0.0 3.3 2.7 Example 24 - Polyester Fabric III Anti-static Agent: None Conventional Example 20 Tensile Strength: in kg/5 cm 143.7 140.0 143.6 % difference 0.0 2.6 0.1
  • 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.

Landscapes

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

Claims (11)

  1. Utilisation d'un aminoxyde pour le traitement des textiles en vue de réduire la tendance des textiles à accumuler des charges électrostatiques, dans laquelle l'aminoxyde est un mélange d'un aminoxyde diméthylalkylique et d'un aminoxyde bis-(2-hydroxyéthyl)-alkylique, dans lequel les radicaux alkyle comprennent de 12 à 18 atomes de carbone.
  2. Utilisation selon la revendication 1, dans laquelle les textiles comprennent un polyester.
  3. Procédé pour réduire la tendance des textiles à accumuler des charges électrostatiques, qui consiste à traiter les textiles avec une liqueur aqueuse qu'on obtient en ajoutant à l'eau une composition anti-statique aqueuse comprenant :
    10 à 80 % en poids d'aminoxyde et
    2,5 à 20 % en poids d'un alcanol inférieur,
    dans laquelle l'aminoxyde est un mélange d'un aminoxyde diméthylalkylique et d'un aminoxyde bis-(2-hydroxyéthyl)-alkylique, les radicaux alkyle comprenant 12 à 18 atomes de carbone.
  4. Procédé selon la revendication 3, dans lequel le traitement des textiles a lieu pendant ou après le cycle de rinçage d'un processus de lavage.
  5. Procédé selon la revendication 3 ou 4, dans lequel l'alcanol inférieur est l'isopropanol.
  6. Procédé selon l'une quelconque des revendications 3 à 5, dans lequel la liqueur comprend en outre un agent d'anti-moussage.
  7. Procédé selon la revendication 6, dans lequel l'agent d'anti-moussage est une huile siliconique.
  8. Composition aqueuse anti-statique comprenant :
    10 à 80 % en poids d'un aminoxyde, et
    2,5 à 20 % en poids d'un alcanol inférieur,
    dans laquelle l'aminoxyde est un mélange d'aminoxyde diméthylalkylique et d'aminoxyde bis-(2-hydroxyéthyl)alkylique, dont les radicaux alkyle comprennent de 12 à 18 atomes de carbone.
  9. Composition anti-statique selon la revendication 8, dans laquelle l'alcanol inférieur est l'isopropanol.
  10. Composition anti-statique selon la revendication 8 ou 9, qui comprend en outre un agent anti-moussage.
  11. Composition anti-statique selon la revendication 10, dans laquelle l'agent d'anti-moussage est une huile siliconique.
EP19900203230 1989-12-18 1990-12-07 Utilisation d'aminoxides comme agents antistatiques Expired - Lifetime EP0434118B2 (fr)

Applications Claiming Priority (2)

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

Publications (4)

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

Family

ID=10668098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203230 Expired - Lifetime EP0434118B2 (fr) 1989-12-18 1990-12-07 Utilisation d'aminoxides comme agents antistatiques

Country Status (9)

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

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
FI98735B (fi) 1997-04-30
NZ236496A (en) 1992-08-26
EP0434118A3 (en) 1991-09-11
AU6806790A (en) 1991-06-20
EP0434118B1 (fr) 1995-11-22
FI906100A0 (fi) 1990-12-12
ES2081345T5 (es) 1999-02-16
DE69023747D1 (de) 1996-01-04
ZA9010182B (en) 1992-08-26
DE69023747T2 (de) 1996-04-18
GB8928512D0 (en) 1990-02-21
CA2032184A1 (fr) 1991-06-19
CA2032184C (fr) 1999-11-30
AU633166B2 (en) 1993-01-21
FI98735C (fi) 1997-08-11
FI906100A (fi) 1991-06-19
DE69023747T3 (de) 1999-04-15
EP0434118A2 (fr) 1991-06-26
ES2081345T3 (es) 1996-03-01

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