EP0943026B1 - A method for insect-resist treatment of carpets, textiles and insulation products - Google Patents
A method for insect-resist treatment of carpets, textiles and insulation products Download PDFInfo
- Publication number
- EP0943026B1 EP0943026B1 EP97932044A EP97932044A EP0943026B1 EP 0943026 B1 EP0943026 B1 EP 0943026B1 EP 97932044 A EP97932044 A EP 97932044A EP 97932044 A EP97932044 A EP 97932044A EP 0943026 B1 EP0943026 B1 EP 0943026B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibre
- insect
- fibres
- wool
- 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.)
- Expired - Lifetime
Links
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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/006—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with wool-protecting agents; with anti-moth agents
-
- 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
Definitions
- This invention involves a method of imparting insect-resistance on carpets, textiles or insulation products which contain wool and/or other animal fibres.
- the most common insecticides used to give wool fibres insect resistance are synthetic pyrethroids, usually permethrin. These are usually applied by adding an aqueous emulsion of the insecticide to wool during scouring, dyeing, tape-scouring or chemical-setting.
- the insecticide active is exhausted into and onto the fibres in the above applications.
- dyebath application typically 95% of the insecticide is exhausted onto the fibre.
- loose wool or yarn scouring application processes a continuous exhaustion equilibrium is reached being partially dependent on fibre throughput and bowl insecticide concentration. In both the above application processes considerable amounts of effluent containing insecticide are produced.
- a method of protecting wool and other animal fibres from being eaten by insect larvae by treating synthetic fibres or regenerated natural fibres with an insecticide and blending a proportion of this treated fibre with untreated wool or other animal fibre, wherein the proportion of synthetic fibres or regenerated natural fibres in the blend is 5% or less of synthetic fibre or regenerated natural fibre by overall weight of wool or other animal fibre.
- the effective insecticide can be permethrin, an insect growth regulator or any other compound having an insect-resist effect.
- the insect growth regulator can be RH 5992 (Rohm & Hass) and the insect-resist compound can be Abamectin, Lufenuron (Ciba Geigy), Bifenthrin (FMC Corporation), MGK 264 or a perfluoroalkylsulphonate (3M).
- the aim is to add as little as possible to the overall fibre blend so as to minimise the proportion of synthetic or regenerated natural fibres in the blend.
- a secondary but very important feature of the invention is for the pre-treated fibre to contain a high concentration of insecticide (for example permethrin) to impart insect resistance on the whole fibre blend.
- insecticide for example permethrin
- the choice of fibre for treatment and the method of insecticide application to the fibre are key features of the invention.
- Another key factor is that the insecticide treatment is largely fast to subsequent wet processes. This is essential to prevent downstream losses of the insecticide which end up in discharged effluent.
- Low-melt bi-component polyester fibre (PES) (LM-51, 15 den, 76 mm - SAM YANG Co Limited) was pre-treated in a bath containing 1 g/l Topsoft (Dylachem - Precision Processors) for 15 minutes at 40°C.
- PES Low-melt bi-component polyester fibre
- the fibre is then squeezed and added to the application bath which contains:
- the bath temperature is raised to 55°C and held for 60 minutes.
- Fibre is then squeezed and rinsed twice in 40°C rinsewater.
- the fibre generally takes up about 15% Mystox CMP on weight fibre (owf) (i.e. 1.8% w/w permethrin owf).
- the dry fibre was blended with wool in the ratio (95% wool/5% PES) to achieve an overall treatment level of about 0.75% Mystox CMP owf (i.e. 0.09% w/w permethrin owf).
- the fibre was spun into yarn and then tufted into 10mm cut pile carpet.
- Low-melt bi-component fibre was treated as in Example 1. This loose fibre was tested for treatment fastness to a simulated tape-scour train as follows:
- Fibre was passed through a series of scour bowls with a roller-squeeze between each one.
- Bowl (1) contained 1.5 g/l Teric GN9 (ICl) @ 65°C Bowls (2), (3) and (4) were clean water rinses @ 65°C
- Low-melt bi-component PES fibre was treated as in Example 1. This fibre was subjected to a simulated loose-stock dyeing to test for fastness.
- Dye bath contained - 0.5% Albegal FFA (Ciba Geigy) omw
- the low-melt sheath which constitutes about 50% of a bi-component fibre was doped in the melt with 3% permethrin prior to extrusion to produce an insect-resist fibre for blending with wool containing around 1.5% permethrin.
- the treated fibre was subsequently blended with wool in the ratio 5%/95% PES/wool as in Example 1 and a similar bioassay carried out to give a pass result in terms of WNZ Test Method 25.
- Permethrin was added to low-melt polyester fibre at a rate of 1.5% on mass of polymer.
- the polymer chips were subsequently fed into a hopper, melted then extruded as an homogenous fibre containing about 1.5% insecticide. This was subsequently blended with wool in the ratio 95% wool/5% synthetic as for Example 1. The same level of protection is achieved.
- Topsoft, Mystox, ALBEGAL, Lanaset, and Avolan may be registered trade marks of their respective proprietors in at least one Contracting State.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Catching Or Destruction (AREA)
Description
In some geographic areas strict limits are being imposed on the discharge of effluent containing these insecticides. These limits can be such that traditional insect-resist treatment methods as described above, cannot be used if effluent is discharged directly to sewer.
W097/23682 discloses a method of treating carpets or other textiles, the method including the steps of:
- incorporating a formulation into a synthetic fibre;
- blending the synthetic fibre with wool fibres; and
- heating the synethetic fibre and the wool fibres so as to fuse the synthetic fibre
onto the wool fibres. The formulation can comprise a fluorosurfactant compound, for
example a perfluoro alkyl sulphonate.
The purpose and object of this invention is to overcome the problems of pesticides present in discharge effluents i.e. to produce an alternative to traditional aqueous application methods.
The effective insecticide can be permethrin, an insect growth regulator or any other compound having an insect-resist effect.
The insect growth regulator can be RH 5992 (Rohm & Hass) and the insect-resist compound can be Abamectin, Lufenuron (Ciba Geigy), Bifenthrin (FMC Corporation), MGK 264 or a perfluoroalkylsulphonate (3M).
- 30% owf Mystox CMP (Catomance) (containing 12% permethrin W/V)
- 10% owf Dyapol BLF (Yorkshire Chemicals)
- pH 4.5 with acetic acid (BDH).
- The durability of the treatment to shampooing was determined using three shampoo cycles according to the protocol outlined in IWS Test Method 28. A 45°C, 10g/l solution of non-ionic detergent was applied to the carpet using a spray/vacuum cleaner (Kerrick Hydra-Vac). The spray head was moved over the carpet at a speed of 3cm/sec. A second pass was made with vacuum only. The sample was dried at room temperature before the second and third respective cleaning cycles. The amount of permethrin removed was determined using an established HPLC assay technique. The treatment was found to be 94% fast to the shampoo treatment.
- The resistance of the carpet to insect attack was determined by using protocol of IWS Test Method 25. The test species used was Tineola bisselliella. 15 larvae of equal size were placed on carpet discs (40mm diameter) in mesh-topped aluminium containers in a controlled environment for fourteen days. Four replicates were used. At the completion of the test the larvae mortalities were determined and carpet damage and weight loss assessed.
- 100% mortality and low mass losses/damage scores were achieved on all samples, giving a pass result to Wools of New Zealand (WNZ) Test Method 25 protocol.
- The above carpet was winch dyed using the following programme:
Auxiliaries 0.2 g/l ALBEGAL FFD (Ciba Geigy) 1.5 g/l Sodium acetate (BDH) 1.25 ml/l Acetic acid (BDH) 1% omw Albegal SET (Ciba Geigy) 5% omw Sodium Sulphate (BDH) Dyes 0.021 % omw Lanaset Yellow 2R (Ciba Geigy) 0.018% omw Lanaset Blue 2R (Ciba Geigy) 0.077% omw Lanaset Red 2B (Ciba Geigy) - Raise bath temperature to 40°C
- add auxilliaries
- circulate 10 mins
- add dyes
- Heat to 85°C @ 1°/minute
- Hold 30 minutes
- Dump bath, rinse
- Hydro extract
- The overall treatment level was 83% fast to this dyeing.
Bowls (2), (3) and (4) were clean water rinses @ 65°C
- The treatment level was 92% fast to this wet process.
This fibre was subjected to a simulated loose-stock dyeing to test for fastness.
- 1.25 ml/l Acetic acid (BDH)
- 0.25% Avolan S (Bayer) (omw)
- Auxilliaries added to bath @ 50°C
- Fibre added to bath and temperature increased to 95°C @ 1°C/hour
- Hold at 95°C for 15 minutes
- Drop a cold rinse
- Fastness to this process was 75%.
Claims (5)
- A method of protecting wool and other animal fibres from being eaten by insect larvae by treating synthetic fibres or regenerated natural fibres with an insecticide and blending a proportion of this treated fibre with untreated wool or other animal fibre, wherein the proportion of synthetic fibres or regenerated natural fibres in the blend is 5% or less of synthetic fibre or regenerated natural fibre by overall weight of wool or other animal fibre.
- A method as claimed in Claim 1 wherein the synthetic fibres or regenerated natural fibres are treated with permethrin.
- A method as claimed in Claim 1 wherein the synthetic fibres or regenerated natural fibres are treated with an insect growth regulator or any compound having an insect-resist effect.
- A method as claimed in Claim 3 wherein the insect growth regulator or compound is abamectin, lufenuron, bifenthrin or a perfluoroalkylsulphonate.
- An insect-resist treated carpet, textile or insulation product manufactured in accordance with the method as claimed in Claim 1.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ29905196 | 1996-07-24 | ||
NZ29905196 | 1996-07-24 | ||
PCT/NZ1997/000094 WO1998003718A1 (en) | 1996-07-24 | 1997-07-24 | A method for insect-resist treatment of carpets, textiles and insulation products |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0943026A1 EP0943026A1 (en) | 1999-09-22 |
EP0943026A4 EP0943026A4 (en) | 2000-05-24 |
EP0943026B1 true EP0943026B1 (en) | 2003-12-17 |
Family
ID=19925867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97932044A Expired - Lifetime EP0943026B1 (en) | 1996-07-24 | 1997-07-24 | A method for insect-resist treatment of carpets, textiles and insulation products |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0943026B1 (en) |
AU (1) | AU732690B2 (en) |
WO (1) | WO1998003718A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AP2010005113A0 (en) * | 2007-06-29 | 2010-02-28 | Vestergaard Frandsen Sa | Insecticidal thread |
CN105076131B (en) * | 2007-06-29 | 2017-11-14 | 韦斯特高有限公司 | Coextrusion monofilament of desinsection and application thereof and production method and the method for control insecticide movement thereon |
DE102008023388A1 (en) | 2008-05-13 | 2009-11-19 | Teijin Monofilament Germany Gmbh | Monofilaments, tapes or films, useful for deterring or killing snails or bugs, comprise a thermoplastic polymer e.g. thermoplastic polyester elastomer and a pyrethroid e.g. permethrin, incorporated into the polymer matrix |
EP2243878A1 (en) * | 2009-04-23 | 2010-10-27 | Color-Textil Veredelung Ein Unternehmensbereich der Peppermint Holding GmbH | Use of a textile structure for vector protection and development of a method for producing a textile structure for vector protection |
LU91807B1 (en) * | 2011-04-07 | 2012-10-08 | Gottlieb Weinen | Long-term parasite rejection procedures |
WO2013171118A2 (en) * | 2012-05-16 | 2013-11-21 | Intelligent Insect Control | A strong insecticidal net |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0170611B1 (en) * | 1984-04-06 | 1988-10-12 | Ciba-Geigy Ag | Process for protecting keratinic material against deterioration by keratin devouring insects |
NZ233919A (en) * | 1990-06-01 | 1993-02-25 | Wool Res Organisation | Treatment of textiles made of animal fibres with insecticides without use of solvents |
EP0717591A4 (en) * | 1993-09-06 | 1996-08-28 | Commw Scient Ind Res Org | Insecticidal composition |
EP0883710A4 (en) * | 1995-12-21 | 2000-11-29 | Wool Res Organisation | A method for insect-resist treatment of carpet and textiles |
-
1997
- 1997-07-24 AU AU35602/97A patent/AU732690B2/en not_active Ceased
- 1997-07-24 EP EP97932044A patent/EP0943026B1/en not_active Expired - Lifetime
- 1997-07-24 WO PCT/NZ1997/000094 patent/WO1998003718A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO1998003718A1 (en) | 1998-01-29 |
EP0943026A4 (en) | 2000-05-24 |
EP0943026A1 (en) | 1999-09-22 |
AU732690B2 (en) | 2001-04-26 |
AU3560297A (en) | 1998-02-10 |
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