AP147A - Insecticidal treatment and compositions therefor - Google Patents

Insecticidal treatment and compositions therefor Download PDF

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Publication number
AP147A
AP147A APAP/P/1990/000161A AP9000161A AP147A AP 147 A AP147 A AP 147A AP 9000161 A AP9000161 A AP 9000161A AP 147 A AP147 A AP 147A
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AP
ARIPO
Prior art keywords
polystyrene
fabric
polymeric substance
fabrics
shellac
Prior art date
Application number
APAP/P/1990/000161A
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AP9000161A0 (en
Inventor
Gordon James Marrs
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Ici Plc
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Filing date
Publication date
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Publication of AP9000161A0 publication Critical patent/AP9000161A0/en
Application granted granted Critical
Publication of AP147A publication Critical patent/AP147A/en

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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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
    • 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
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • 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
    • D06M13/244—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 sulfur or phosphorus
    • D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
    • 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
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Frabrics, especially furnishing

Description

INSECTICIDE TREATMENT & COMPOSITIONS THEREFOR
This invention relates to treatment of fabrics with insecticides and compositions for use in the treatment, and to fabrics thus treated.
Among the uses of insecticides for arthropod control, the pyrethroid insecticides have become popular for impregnation’’ of fabrics such as carpets, curtains and mosquito nets. The pyrethroids include chemicals such as permethrin, cypermethrin and lambda-cyhalothrin which are very stable and insecticidal. These chemicals, usually formulated as emulsion concentrates for aqueous dilution, can be conveniently and safely used for residual treatment of materials requiring to demonstrate a prolonged insecticidal effect.
The use of pyrethroid insecticides for impregnation of mosquito nets and curtains as a means of killing mosquitoes and other flies that settle on the treated materials is well known. This concept is based upon the way that blood-sucking arthropods may contact the insecticide-treated substrate when attracted to a nearby host, eg. a person sleeping under a bednet. This promotes the control of the pests, eg. mosquitoes.
Because people tend to wash their bednets, curtains, etc. from time to time, it is desirable to enhance the persistence of insecticides on treated materials by making them wash-proof, to some extent. However conventional insecticidal compositions do not provide a washproof insecticidal effect and the
BAD ORIGINAL ft present invention is concerned with a solution to this problem.
Accordingly the present invention provides a method of treating fabrics to impart washproof insecticidal properties thereto which comprises treating said fabric with a insecticidally effective amount of a liquid composition comprising an insecticidally active pyrethroid ingredient and a polymeric substance selected from polystyrene and shellac. The threads of the treated fabric are thus coated not only with the insecticidal active ingredient but also with the polymeric substance.
The effect of the polymeric substance is to increase the adhesion of the insecticidal substance to the fabric by incorporating the insecticidal substance in a film of the polymeric substance, which itself adheres to the individual threads of the fabric. The invention thus provides woven or non-woven fabric material the threads of which are coated or partially coated with a film of an adherent polymeric substance selected from polystyrene and shellac incorporating an insecticidally effective amount of a pyrethroid. The fabric may be in the form of furnishing fabrics, such as curtains, bed-linen, bed-nets, furniture covers, or may be incorporated into matting, carpets or other floor covering. Alternatively the fabrics may be made up for use in packaging, such as sacks for the storage and transport of materials, including foodstuffs subject to spoilage by insect pests.
Fabrics to be treated may be made of natural fibres such as cotton, raffia, jute, flax, sisal, hessian, or wool, or synthetic fibres such as polyamide, polyester, polypropylene, polyacrylonitrile or the like.
The method of the invention may be practised using liquid compositions comprising any suitable insecticide which is effective against the pests to be controlled, particularly adult mosquitoes and flies. Thus the insecticide may be a pyrethrin or pyrethroid insecticide such as allethrin, bioallethrin, S-bioallethrin, neopynamin, fenvalerate, permethrin, cypermethrin, alphamethrin, deltamethrin, cyhalothrin or lambda-cyhalothrin.
The compositions may be of any suitable liquid solvent based type, for example, emulsifiable concentrates (EC), oil-in-water emulsions (EW), which are applied after dilution with water, or solutions which may be applied directly by ultra-low volume spraying.
The compositions also comprise a polymeric substance, dissolved in the liquid solvent. This may be a natural resin or wax such as shellac. Shellac is particularly useful. The polymeric substance may also be a synthetic polymer, such as polystyrene. The molecular weight of the polymer must be such that required concentration in the composition can be obtained by dissolution in the solvent. Thus polystyrene having an average molecular weight within the range from 2000 to
BAD ORIGINAL
1000000 is particularly useful. In general the average molecular weight of the polymer should be such as to permit ready dissolution in the solvent used in the composition, and at the same time provide significantly increased washfastness of the insecticide deposit on the fabric. In order to ensure that good adhesion is obtained for a particular combination of fibre and insecticide it may be helpful to combine more than one polymer in a blend. The solvent can be any suitable organic solvent in which the insecticidal active ingredient in soluble, and in which the polymeric substance is simultaneously soluble. Suitable solvents include ketones such as cyclohexanone, iso-phorone, acetophenone, and methyl isobutyl ketone, ethers such as anisole, esters such as hexyl acetate and methylbenzoate, vegetable oils, amides such as Nmethylpyrrolidone, chlorinated hydrocarbons such as 1,1,1-trichloroethane, chloroparaffins and chlorotoluene, aromatic carbons such as alkyl benzenes and methylnaphthalene, aliphatic hydrocarbons such as alkylcycloparaffins, branchedchain alkanes and alcohol-ethers such as diethyleneglycol mono-methyl ether, propylene glycol monomethyl ether, polyethylene glycol and tetrahydrofurfuryl alcohol, or mixtures thereof.
The compositions may also contain wetting emulsifying or dispersing agents, which may be of the cationic, anionic or non-ionic type. Suitable agents of the cationic type include, for example, quaternary ammonium compounds, for example, cetyltrimethy1 ammonium bromide. Suitable agents of the anionic type include, for example, soaps, salts of aliphatic monoesters or sulphuric acid, for example, sodium lauryl sulphate, salts of sulphonated aromatic compounds, for example, sodium dodecylbenzenesulphonate, sodium, calcium or ammonium lignosulphonate, or butylnaphthalene sulphonate, and a mixture of the sodium salts of diisopropyl- and triisopropylnaphthalene sulphonates. Suitable agents of the non-ionic type include, for example, the condensation products of ethylene oxide with fatty alcohols such as oleyl alcohol or cetyl alcohol, or with alkyl phenols such as octyl phenol, nonyl phenol and octyl cresol. Other non-ionic agents are the partial esters derived from long chain fatty acids and hexitol anhydrides, the condensation products of the said partial esters with ethylene oxide, and the lecithins.
The compositions which are to be used in the form of aqueous dispersions or emulsions are generally supplied in the form of a concentrate containing a high proportion of the active ingredient or ingredients, the said concentrate to be diluted with water before use. These concentrates are often required to withstand storage for prolonged periods and after such storage, to be capable of dilution with water to form aqueous preparations which remain homogenous for a sufficient time to enable them to be applied by dipping or by conventional spray equipment.
The compositions may contain from 1 to 70% by weight of the insecticidal active ingredient, and preferably from 5 to 50% by weight. They may also contain from 1 to 25% by weight of the polymeric substance, and preferably from 3 to 15% by weight.
In other respects the compositions resemble conventional compositions of insecticides of the emulsifiable concentrate, oil-in-water emulsion, or
BAD ORIGINAL solution type.
Where the composition is diluted with water before use it may be applied to the fabric by direct spraying, or by dipping or soaking the fabric in a bath containing the diluted composition. The fabric may be finished and made up fabric, such as curtains (particularly net curtains), bed-linen, furniture covers or the like, or may be new fabric. In the latter case the insecticide treatment may be carried out at the end of the manufacturing process, by placing the insecticidal composition in the final treatment bath.
The leaching of insecticides from fabrics during the washing process not only reduces the insecticidal effectiveness of the deposit on the fabric, but also allows the insecticides to pass into the wash water. Although this does produce an environmental hazard where individual fabrics such as bednets are washed from time to time in the course of a normal domestic laundry regime, a problem can occur if treated fabrics are routinely washed during continous manufacturing processes. Thus insecticides are frequently applied to fabrics used in carpet manufacture for the control of carpet beetles, but in subsequent treatments during manufacture some of this may be washed out of the carpet, leading to a potential hazard to the environment if the wash waters are subsequently discharged into natural waterways. 3y the use of the invention method and compositions the amount of insecticides washed out of the carpet may be significantly reduced.
The invention is illustrated by the following Examples. The examples illustrating compositions of particular active ingredients may be considered as exemplifying also compositions in which the active ingredient is replaced by others of similar effectiveness.
EXAMPLE 1
This Example illustrates an emulsifiable concentrate according to the invention.
% w/w
Cypermethrin 25
Polystyrene 5
Calcium dodecyl benzene sulphate 5 'Synperonic' NP13 5 ’Solvesso' 200 to 100 'Synperonic' NP13 ('Synperonic is a registered trade mark) is a condensate of nonylphenol with ca. 13 moles of ethylene oxide.
'Solvesso' 200 ('Solvesso is a registered trade 5 mark) is a blend of methylnaphthalenes.
The polystyrene has an average molecular weight of about 100000.
AP 0 0 0 1 4 7
EXAMPLE 2
This Example illustrates an emulsifiable concentrate according to the invention.
% w/w
Lambda-cyhalothrin Polystyrene 'Synperonic' OP10
Calcium dodecyl benzene sulphonate 'Solvesso' 100 to 100
BAD ORIGINAL &
'Solvesso' 100 ('Solvesso' is a registered trade mark) is a solvent blend of C9-alkylbenzenes.
EXAMPLE 3
This Example illustrates a solution suitable for
5 ultra-low volume spray application.
% w/w
Permethr in 5
Shellac 5
’Aromasol' H to 100
10 'Aromasol' H ('Aromasol' is a registered trade
mark) is a solvent blend of xylenes and
ethylbenzene.
EXAMPLE 4
This Example illustrates an emulsifiable
15 concentrate suitable for invention . use in the method of the
% w/w
Pi r imiphos-methyl 25
Polystyrene 5
20 'Synperonic' NP13 5
Calcium dodecyl benzene
sulphonate 5
Epoxidised soya bean oil 4
'Solvesso' 100 to 10
EXAMPLE 5
This Example illustrates two further emulsifiable concentrates suitable for use in the method of the invention (a) lambda-cyhalothr in 5 Polystyrene (M.W. 105) 'Tensiofix' B7416 'Tensiofix' B7453 ’Cereclor' 63L ’Solvesso' 100 %
2.5
5.0
4.0
6.0
24.0 to 100.0 (b) permethrin
Polystyrene (M.W. 105) ’Tensiofix’ B7416 ’Tensiofix’ B7453 'Cereclor' 63L 'Solvesso' 100
25.0
5.0
4.0 6.0 6.8 to 100.0
L* I 0 0 0 dV 'Tensiofix' B7416 and B7453 (Tensiofix' is a Registered Trade Mark) are blends of surface active agents.
'Cereclor' 63L ('Cereclor' is a Registered Trade 20 Mark) is a blend of chlorinated paraffinic solvents.
BAD ORIGINAL
EXAMPLE 6
This Example illustrates the washfastness obtained by the method of the invention. The composition of Example 1 was used and compared with a similar composition omitting the polystyrene (control). Nylon mosquito netting samples (10 x 10 cm) were dipped into a bath containing the diluted composition until a loading of 0.4g/m2 of permethrin was obtained. After drying the netting was used to demonstrate insecticidal effect against Anopheles qambiae mosquitoes after 0, 1 and 2 washings with soap. The results, which are given as the mean percentage mortality and mean percentage knock-down of three replicates, show that the use of polystyrene in the composition gives an approximately threefold better effect after one wash and an approximately sixfold better effect after two washes than the control. Results are also given for a similar composition in which the polystyrene is replaced by
Shellac which also showed a significant increase in washfastness as compared with the control.
Polymeric Substance % Mortality (% Knockdown) after
0 Wash 1 Wash 2 Washes
Polystyrene 90.5 92.9 68.8
(95.2) (100) (100)
Shellac 84.1 44.0 39.3
(95.5) (62) (24.6)
None 93.0 25.0 9.5
(74.4) (31.3) (4.9)
EXAMPLE 7
This Example illustrates two emulsifiable concentrates according to the invention, A and B, and compares the washfastness of the insecticide deposit on nylon (polyamide) netting with that obtained from a conventional insecticidal composition, C.
AP 0 0 0 1 4 7
Ingredient A % wt 3 c
Pe rmethr in 25.0 25.0 25.0
'Arylan' CA 7.5 7.5 7.5
'Triton'XlOO 12.5 12.5 12.5
Polystyrene 10.0 5.0 -
'Aromasol* H to 100.0 to 100.0 to 100.0
'Arylan' CA ( 'Arylan' is a Registered Trade Mark) is
calcium dodedecylbenzene sulphonate.
BAD ORIGINAL ft 'Triton' X100 ('Triton' is a Registered Trade Mark) is a condensate of octylphenol with 10 moles of ethylene oxide.
Nylon samples were treated with the compositions 5 according to the method of Example 6 and divided into three groups for each composition. The first group was not washed, the second group washed once, and the third group washed twice. The residual deposit of insecticide in each group was then determined by a gas-chromatographic technique in which the deposit was first removed by dissolution in chloroform, using a Hewlett Packard 5880 gas chromatograph, equipped with a 25m x 0.2mm (i.d) fused silica methyl-silicone (CP sil 5CB) column, at 60°C (initial) to 240°C (final) and an injection temperature of 280°C. The -* results are given in the following table (expressed as mg/m^ of permethrin retained on the netting) and show clearly that the incorporation of the polystyrene significantly increases the washfastness of the permethrin deposit.
No of Washes A B C
0 580 425 325
1 390 150 11
2 260 130 4
ICI CASE PP35134

Claims (11)

1. Woven or non-voven fabric material the threads of vhich are coated or partially coated with a film of an adherent polymeric substance selected from polystyrene and shellac incorporating an insecticidally effective amount of a pyrethroid.
2. Fabric material according to claim 1 made of natural fibres selected from cotton, raffia, jute, flax, sisal, hessian and vool, or synthetic fibres selected from polyamide, polyester, polypropylene or polyacrylonitrile fibres, or a blend of any such natural and synthetic fibres.
3. A method of treating fabrics to impart washproof insecticidal properties thereto vhich comprises treating said fabric with an insecticidally effective amount of a liquid composition comprising a pyrethroid and a polymeric substance selected from polystyrene and shellac.
4. A method according to claim 3 wherein the insecticidal active ingredient is selected from permethrin, cypermethrin, alphamethrin, deltamethrin, allethrin, fenvalerate, cyhalothrin, or any isomer or mixture of isomers thereof.
5. A method according to claim 3 wherein the polymeric substance is polystyrene.
6. A method according to claim 3 wherein the fabric is an open-meshed netting.
7. Fabric treated by the method of claim 3.
AP 0 0 0 1 4 7
BAD ORIGINAL Λ
PP35134 (continued)
8. A method of combating insect pests in a dwelling which comprises suspending a fabric according to claim 1 in the dwelling such that it is accessible to the insect pests.
9. A composition for use in the method of claim 3 which comprises as insecticidally active ingredient a pyrethroid and a polymeric substance selected from polystyrene and shellac in solution in an organic solvent, and, optionally, additionally comprising surface active agents.
10. A composition according to claim 9 wherein the insecticidally active ingredient is selected from permethrin, cypermethrin, alphamethrin, deltamethrin, allethrin, fenvalerate, cyhalothrin, or any isomer or mixture of isomers thereof.
11. A composition according to claim 9 wherein the polymeric substance is selected from polystyrene having an average molecular weight in the range 2000 to 1000000.
ABSTRACT
Fabrics, especially furnishing fabrics, the threads of which are coated with a film of a polymeric substance selected from polystyrene and shellac incorporating an insecticidally
5 active pyrethroid. The fabrics are particularly useful for making up into articles such as curtains, bed-nets and the like.
bad original &
APAP/P/1990/000161A 1989-02-09 1990-02-05 Insecticidal treatment and compositions therefor AP147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898902929A GB8902929D0 (en) 1989-02-09 1989-02-09 Insecticide treatment & compositions therefor

Publications (2)

Publication Number Publication Date
AP9000161A0 AP9000161A0 (en) 1990-04-30
AP147A true AP147A (en) 1991-10-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
APAP/P/1990/000161A AP147A (en) 1989-02-09 1990-02-05 Insecticidal treatment and compositions therefor

Country Status (10)

Country Link
EP (1) EP0382382A1 (en)
JP (1) JPH02289186A (en)
AP (1) AP147A (en)
AU (1) AU633298B2 (en)
GB (2) GB8902929D0 (en)
HU (1) HUT52832A (en)
IL (1) IL93198A0 (en)
MY (1) MY105543A (en)
OA (1) OA09194A (en)
ZA (1) ZA90684B (en)

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US5503918A (en) * 1995-03-10 1996-04-02 Graniteville Company Method and means for retaining permethrin in washable fabrics
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US20080026024A1 (en) * 2003-08-21 2008-01-31 Earth Chemical Co., Ltd. Insect Pest Behavioral Disturbance Inducer, Functional Fiber, Functional Fabric and Functional Fiber Product
US20050132500A1 (en) * 2003-12-22 2005-06-23 Basf Aktiengesellschaft Composition for impregnation of fibers, fabrics and nettings imparting a protective activity against pests
DE102005046013A1 (en) * 2005-09-26 2007-03-29 Hexonia Gmbh Device, useful for protecting animals from insects, especially horse blanket, comprises a synthetic textile material and an insecticide
JO3356B1 (en) * 2007-06-25 2019-03-13 Syngenta Participations Ag Pesticide Compositions
WO2010086872A1 (en) * 2009-01-29 2010-08-05 Director General, Defence Research & Development Organisation A wool care composition
GB201319336D0 (en) * 2013-11-01 2013-12-18 Liverpool School Tropical Medicine Mosquito bed net assembly
WO2018149734A1 (en) 2017-02-14 2018-08-23 Vestergaard Sa A method for killing insects inside a container, such container and use thereof
WO2019101289A1 (en) 2017-11-21 2019-05-31 Vestergaard Sa A hermetic, insecticidal food storage bag, use of it and a method for its production
CN110791857A (en) * 2019-10-15 2020-02-14 江阴市长泾花园毛纺织有限公司 Production process of jacquard color point woolen cloth
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FR2117769A7 (en) * 1970-12-16 1972-07-28 Dynachim Sarl Dichlorvos insecticidal strips - having a synthetic fibrous support

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Publication number Publication date
GB2228200B (en) 1992-09-02
IL93198A0 (en) 1990-11-05
GB9001874D0 (en) 1990-03-28
HU900691D0 (en) 1990-04-28
GB8902929D0 (en) 1989-03-30
AU633298B2 (en) 1993-01-28
GB2228200A (en) 1990-08-22
AP9000161A0 (en) 1990-04-30
OA09194A (en) 1992-06-30
EP0382382A1 (en) 1990-08-16
JPH02289186A (en) 1990-11-29
ZA90684B (en) 1991-04-24
AU4896090A (en) 1990-08-16
MY105543A (en) 1994-10-31
HUT52832A (en) 1990-08-28

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