WO2010009756A1

WO2010009756A1 - Bandage for protecting wood poles installed in the ground

Info

Publication number: WO2010009756A1
Application number: PCT/EP2008/059577
Authority: WO
Inventors: Norbert Seddig
Original assignee: Wolman Gmbh
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2010-01-28
Also published as: EP2313579A1

Abstract

The invention relates to a bandage for protecting poles installed in the ground, comprising a carrier film, means for attaching the bandage applied to the pole, and an active substance acting on the pole. In order to particularly improve regular maintenance, that is, pole and pile care, for poles or pilings made of wood or similar material, and to provide a bandage for this purpose requiring reduced, manageable cost of materials relative to the described known systems, and allowing easy application to the pole base to be exposed by digging only in the air-soil region, according to the invention, the first attachment means is applied at least in segments to the carrier film and the active substance or a mixture of active substances is applied to the attachment means in regions.

Description

Bandage for the protection of wooden poles installed in the ground

description

The invention relates to a bandage for the protection of built-in earth wooden poles, comprising a carrier film, means for securing the applied to the mast bandage and acting on the mast drug.

With such bandages buried in the ground wooden poles, especially telegraph poles or other inserted into the soil pile are provided to provide protection, but also a care of the earth-air zone. The bandages must be renewed usually periodically, usually every eight years, because during this period, the active ingredient is almost used up and therefore control of the mast base is required and required.

In a known bandage of the type described in the introduction, the so-called WoI- manit ^® -Bandage, the forces acting on the mast active ingredients such as insecticides, fungicides, algicides, bactericides, etc., are contained in an impregnated with them foam pad. The bandage fixing this padding on the mast base consists of a self-adhesive foil and has an additional sealing foil essentially for the part of the bandage projecting out of the earth. In addition, a bitumen seal is applied to prevent the ingress of water from above. The preparation of the impregnated with the active ingredients pad can be problematic, because the impregnation is carried out with liquid wood preservatives containing chromium, copper, boron, arsenic and other metal compounds. When drying losses can occur and environmental, in particular groundwater pollution can not be excluded. Also, the multi-part of the bandage leads to an increased cost of materials as well as a relatively high performance during installation.

A simpler known form of such a bandage is the "Postsaver" ^® system, in which a simple PE film carries an adhesive layer of bitumen. This seals the surface of the already impregnated wooden mast in the earth-air area. However, it can not be fully considered a wood preservative because its protective effect is based on the sealing of the wood surface by the bitumen-forming bitumen. There are no special effects provided that would be targeted specifically to special negative influences on the mast base as by insects, fungal infestation or the like. Also, as a preferred mode of use of this product, dispensing in the form of caps is described. However, this essentially restricts this use to factory equipment of poles or piles and precludes the subsequent care in situ if one does not want to fully excavate the object to be treated. Finally, recently a mast protection system under the name perma- dur ^® has been proposed in which a thin, about 0.1 to 0.3 mm thick metal foil with the aid of a 1, 5 to 3 mm thick tube of heat shrinkable film at the mast base is fixed. The metal foil is copper and its alloys, in particular brass, which develop biocidal activity by slow release of metal ions diffusing into the wood, while in the special case of brass its zinc content occurs as an additional active substance and the adaptation of the wood prevents destructive mushrooms. The shrink film is further protected by an overlying PE film, which is about twice as wide as the metal foil. With this system, it should be noted that both the metal foil and the shrink-film tube can only be attached at the factory and the metal foil itself is very expensive and expensive. Especially when masts or piles so protected are placed in the area of curious grazing livestock, the life is limited, and it goes without saying that a care in situ can not be performed, but the old mast are replaced by a factory-equipped new got to.

The invention is based on the object, in masts or piles of wood or similar material in particular the regular maintenance, so the fattening and pile maintenance, to improve and to provide a bandage for this purpose, compared to the known systems described requires a reduced, manageable cost of materials and allows easy application to the mast base to be cleared only in the earth-air area.

This object is achieved according to the invention in that a first attachment means is applied at least in sections on one side of the carrier film, and that the insecticidal and / or fungicidal and / or algicidal and / or bactericidal active ingredient or a mixture of such agents at least partially on the fastener are applied. The structure of this bandage is particularly simple and effective, since the first fastening means, such as adhesive, are used in some areas for fixing the active ingredient or the combination of active ingredients. Adhesive is - as will be explained in more detail below - a preferred first attachment means in the invention.

Preferably, the active ingredients on a central strip, ie in the central region of the bandage, based on the height of the carrier film, and arranged parallel to the longitudinal extent of the carrier film, while the outer lateral regions of the carrier film, ie the longitudinal regions which have no first attachment means exclusively To fix the bandage on the mast. With such a bandage, it is possible to ensure an absolutely firm fixation in the critical marginal areas of the bandage and also in each case the possibly special purpose of the mast or pole-shaped object and the conditions of the environment appropriate drug agent in sufficient dosage to install where they are necessary to protect the wood against any external influences, especially pests of whatever kind.

Bandages with the active ingredients applied according to the invention are advantageously 100 mm to 600 mm, preferably 200 mm to 500 mm wide. In this way, they are easy to handle by one person and cover at the same time with one or more windings around the mast to be obtained from a sufficient to protect the mast circumferential area.

A likewise advantageous embodiment of the bandage according to the invention consists in at least two bands of the first fastening means which run independently of one another and in the longitudinal direction of the bandage. Through these bands, which are preferably mounted parallel to the bandage, but can run independently meandering, the bandage can be securely fixed to the mast.

Manufacturing technology and for the purpose of improving the shelf life, it is advantageous if the active ingredients are predominantly, ie at least 50 wt .-%, solids. The proportion of solids should be 50 to 100% by weight, in particular 60 to 95% by weight and particularly preferably 70 to 90% by weight. Pulverulent active substances are preferably used, with a particle size spectrum between 0.05 and 3000 μm, preferably between 0.5 and 2000 μm, and in particular> 50% between 0.5 and 3000 μm, having proven suitable. The active ingredients may advantageously be metal dusts. Particularly suitable are metal dusts containing copper, zinc, chromium, and / or arsenic. Likewise, it is possible to use compounds which contain such metals, for example alloys, salts or organometallic compounds. Also particularly suitable are non-metallic compounds based on boron or fluorine compounds. It is also possible to use mixtures of the abovementioned substances. As a result, their positive properties regarding the protection of wood can be used especially against fungi. Particularly suitable powdered active ingredients have a diameter of 0.1 mm to 3 mm, preferably from 0.2 mm to 1 mm. This but also the other mentioned diameters contribute to ensure the long-term release of active ingredients.

In an optional embodiment of the active ingredients as granules, gel bodies or films which store the active substance or the mixture of active ingredients in order to deliver them over a long period to the adjacent wood, there is the advantage that an economical, slow release of the active ingredients via a long period of time and no handling of liquids is required during the production and processing of the bandage, which could pollute the groundwater. The same applies if, according to a preferred embodiment, the active ingredients are mixed with other additives, in particular with those additives which ensure the uniform delivery of active substance to the wood over long periods of time. Preference is given to using solids as additives. Typical solids which come into question here are inert powders, granules or fibers, into which the additional active ingredients are introduced before application to the first attachment means.

The active substance or the mixture of at least two active substances should be applied in an order volume of max. 60 wt .-%, based on the amount of first attachment means and relevant bandage surface, and preferably between 5 and 50 wt .-% be applied to the first attachment means. Particularly effective is an application rate of 50 to 300 g / m ² , in particular from 100 to 250 g / m ² and amounts of 100, 125, 175, 210, 225 and 250 g / m ² .

The preferred form of forming the bandage as unrollable endless belt means that only one product needs to be processed and thus less errors arise when mounting the bandage.

The first fastening means is preferably provided as an adhesive layer, which can be applied in a continuous process continuously and thus cost-effectively in terms of production from the strip to the carrier film. As an inexpensive means, the adhesive layer may contain as an essential ingredient bitumen or butyl rubber, but also a mixture thereof. Before use, the first fastening means, for example in the form of an adhesive strip or tape, may be covered at least in sections with a removable release agent, for example with a release film. The release agent, for. As siliconized paper, can then be deducted immediately before the use of the bandage. Alternatively, and in particular in the case of a bandage designed as a roll band, the outer surface, that is to say the side of the bandage not equipped with the first fastening means, can also be designed as a release agent, for. B. be siliconized. For both embodiments, it is ensured that the bandage can then roll off well and stick on. If the active ingredients are present as a foil, for example as a metal foil, then the use of a release foil may be unnecessary since the metal foil can take over its function.

The release agent allows a total uncomplicated winding and unwinding of the bandage. For a compact packaging, storage and transporting the bandage according to the invention in a particularly simple and protected manner is possible.

In order to produce a better resistance to biting and / or rotting, the carrier film can be fiber-reinforced, preferably equipped with a fabric scaffold or fiber network. Further, in order to provide a better adaptation to the mast or pile foot, the film may be elastic. The elasticity in only extend one or even in two directions of expansion and, if necessary, achieved by heating a rapid adaptation of the form. It is favorable for the processing of the bandage, if it is elastic in the circumferential direction of the bandaging mast, for example. In order to be adapted to a tapered mast.

Especially with highly conical masts, the bandage can be additionally fixed after mounting on the mast and optionally sealed by z. B. at the upper longitudinal edge of the bandage a second means for securing, for. As an adhesive or sealant such as bitumen, a Velcro strip or an adhesive tape, but possibly also a shrink film or welding film is used. Also mechanical means for fastening, in particular brackets or nails can be used as a second means for fastening.

Overall, with the bandage according to the invention a cost-effective and easy-to-handle item for the protection and care of wooden poles, piles and the like in the border region between soil and air is provided. Typical uses of the bandage are the use for the protection of round or squared lumber, poles, fruit or vine piles, palisades, hop rods or lumber used in the soil. The subject invention may - especially when used in the earth-air area - in each case in the desired manner and according to the requirements of different applications, such as termite infestation, heavily contaminated with fungi soils, already contaminated soils and especially in soils with pronounced wet zones flexibly adapted drug compositions. It thus allows a high adaptability to the respective customer requirements. The cost-benefit effect is increased by the simple processing of a single carrier film, which needs to be available due to their easy windability only in relatively narrow, about 30 to 40 cm making up widths.

The spreading of the active substance onto the first fastening means, for example the adhesive, has proven to be very advantageous, since the protective effect of the adjacent wood surface is thereby beneficial. If the active substance were mixed into the attachment agent, on the one hand an increased application rate of active substance would be required and on the other hand only a fraction of the amount of active substance used could develop the desired protective effect, which is disadvantageous primarily from an economic point of view.

The following examples illustrate the advantages of said invention: example 1

A 35 cm wide, fiber-reinforced polyethylene film was fully coated on one side with a layer of butyl rubber. In a center-aligned strip of 25 cm width granules in a particle size of 0.5 to 1, 5 mm of copper particles and zinc particles in the ratio 50: 50 in an amount of 200 g / m ^{2 was} applied. The bandage was then divided into about 1 m long individual bandages and wound up and packaged for later use. Alternatively, longer bandage sections were rolled up and packaged. The longer bandage sections were measured as multiple benefits on site and processed as a single bandage.

Example 2

On a fiber-reinforced plastic film of 45 cm width was applied on one side in a width of 35 cm bitumen. 70% of the bituminised surface is sprinkled with a mixture of one part of copper granules with a diameter of 1 mm and one part of fiber particles with a diameter of 2.5 mm with a quantity of 150 g / m ² . The fiber particles are fungicidal-impregnated cellulose fibers. The particles adhere to themselves on the bitumen without further action. However, in order to ensure that the relatively light fiber particles adhere securely, the coated drum was unrolled once more with a roller under light pressure. As a result, even light particles adhere securely to the adhesive surface.

The so coated bandage was covered by siliconized paper and cut into individual bandages or as described in Example 1 as a multiple use and rolled up and packaged ready for use.

The bandage according to Example 2 was additionally wrapped with shrink film at the protruding ends during assembly, heated and thereby sealed at the top and bottom. Since the heat action required for shrinking would undesirably liquefy the bitumen, the edge area of the bandage for the second attachment means has not been provided with adhesive.

The bandages of the invention were rolled upon insertion of the wooden mast in the soil on this; The siliconized release paper was removed in sections to the extent that the coated film can be safely and easily aligned and fixed by a person on the mast. The film can be pulled around the mast in a user-friendly and error-free way for effective protection. In most cases, the one-sided applied on the film first fastener for fixing the bandage is sufficient. With wider bandages or with increased mechanical requirements, further fastening means such as

Shrink film, staples, fuses in the manner of a Velcro fastener or other aids are additionally used, for example, to prevent livestock bite or frass or to encounter other mechanical impairments. It is considered to be particularly advantageous that the construction of the bandage according to the invention makes it possible to fix the bandage first on the mast and align and then optionally place and apply further fasteners. As a result, the assembly and processing of the bandage according to the invention of only one person without effort and error-free possible.

Claims

claims

1. bandage for the protection of built-in earth masts of wood or wood-like material, comprising a carrier film, means for securing the applied to the mast bandage and acting on the mast drug, characterized in that first fastening means at least partially on one side of the carrier film are attached and the insecticidal and / or fungicidal and / or algicidal and / or bactericidal active ingredient or a mixture of such agents are at least partially applied to the fastener.

2. Bandage according to claim 1, characterized in that the first fastening means and / the active ingredients / e in a central region, based on the height of the carrier film, and arranged parallel to the longitudinal extent of the carrier film / are and the two outer lateral regions of the carrier film Wear only means to fasten the bandage to the mast.

3. Bandage according to one of claims 1 or 2, characterized in that it has a width of 100 to 600 mm and preferably from 200 to 500 mm.

4. Bandage according to one of claims 1 to 3, characterized in that it comprises the first fastening means as at least two independently arranged on the carrier film longitudinal strips.

5. Bandage according to one of claims 1 to 4, characterized in that the / the active ingredient (s) are predominantly solids and preferably solids in powder form.

6. Bandage according to one of claims 1 to 5, characterized in that the / the active substance (s) are metal dusts, which in particular contain copper, zinc, chromium, arsenic or their alloys, salts or derivatives, and / or nonmetallic compounds, in particular boron, fluorine and derivatives thereof, as well as mixtures of the abovementioned representatives.

7. Bandage according to one of claims 1 to 6, characterized in that the / the active ingredient / e are formed in the form of storing and donating granules.

8. Bandage according to one of claims 1 to 7, characterized in that the / the active substance / s are formed as they storing and donating gel body.

9. Bandage according to one of claims 1 to 8, characterized in that the / the active substance / s are formed as a metal-containing film.

10. Bandage according to one of claims 1 to 9, characterized in that the first attachment means and / or the / the active ingredient / s are mixed with additives.

1 1. Bandage according to claim 10, characterized in that the additives are present as a solid and are formed predominantly as particles and / or fibers.

12. Bandage according to one of claims 1 to 1 1, characterized in that it is designed as a unrollable endless belt.

13. Bandage according to one of claims 1 to 12, characterized in that the first fastening means is covered on the active ingredient side with a removable release agent.

14. Bandage according to one of claims 1 to 13, characterized in that the first fastening means contains as an essential constituent bitumen and / or butyl rubber.

15. Bandage according to one of claims 1 to 14, characterized in that the first fastening means is formed as an adhesive layer.

16. Bandage according to one of claims 1 to 15, characterized in that the carrier film is fiber-reinforced.

17. Bandage according to one of claims 1 to 16, characterized in that the carrier foil is formed elastically at least one direction and preferably in the longitudinal direction.

18. Bandage according to claim 1, characterized in that at least one second fastening means is provided.

19. Bandage according to claim 18, characterized in that the second fastening means are staples, adhesive films, Velcro strips, shrink films, welding films and / or adhesives.

20. Use of the bandage according to one of claims 1 to 19 on wooden poles in the form of a round or square timber and preferably on poles, fruit or vine piles, palisades, hop bars and timbers and in particular in their transition region from soil to air.