WO2002081774A1 - Steel wire with uv-fluorescent lacquered topcoat - Google Patents

Steel wire with uv-fluorescent lacquered topcoat Download PDF

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Publication number
WO2002081774A1
WO2002081774A1 PCT/EP2002/003340 EP0203340W WO02081774A1 WO 2002081774 A1 WO2002081774 A1 WO 2002081774A1 EP 0203340 W EP0203340 W EP 0203340W WO 02081774 A1 WO02081774 A1 WO 02081774A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel wire
topcoat
lacquered
fluorescent
fluorescent component
Prior art date
Application number
PCT/EP2002/003340
Other languages
French (fr)
Inventor
Alain Leplae
Robrecht Moerkerke
Jean-Marc Moerman
Gerard Vandewalle
Original Assignee
N.V. Bekaert S.A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by N.V. Bekaert S.A. filed Critical N.V. Bekaert S.A.
Publication of WO2002081774A1 publication Critical patent/WO2002081774A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process

Definitions

  • This invention relates to a steel wire consisting of a steel wire core and a curing lacquered topcoat containing a fluorescent component, whereby the carbon content of the steel wire core is lower than 0,2 % (percentage of weight) and whereby a metal intermediate layer is applied between the wire core and the curing topcoat.
  • Such a coated steel wire is substantially known from JP 03/206204.
  • This known steel wire according to JP 03/206204 has the advantage, that when irradiated with visible or normal light, e.g. at night, this wire has fluorescing features. Such steel wire is used to form a danger preventing net fence.
  • Such coated steel wires without a fluorescent component in the topcoat are generally known and are sold by the applicant N.V. Bekaert S.A. under the brand "BEKILACQ”®.
  • Such steel wires are a.o. used for the manufacturing of wire brackets ("muselets”) to tighten corks on bottles of champagne, sparkling wine, ... or for the formation of a twined net structure around wine bottles. It is clear that these steel wires have to meet special conditions (specifications) to be transformed mechanically.
  • the product specifications of these steel wires are described in the DS-80-11 specifications of the N.V. Bekaert S.A. (June 1997).
  • topcoat a curing laque coating, based on polyurethanes, polyamides, polyamide-imides, epoxies, polyester-imides, polyvinyl buryrals, polyvinyl acetals or a combination thereof, can be used. It is also already known to add an appropriate quantity of a colour pigment to the curing topcoat in order to give the lacquered topcoat the desired colour in normal daylight. "Curing” means that the topcoat hardens as a result of a chemical reaction forming a three-dimensional polymer network. It has now been found that fraud is committed with the sale of champagne, sparkling wine, ... as all the visible characteristics of an authentic product are imitated, such as e.g. the labels, the bottle's shape and colour, ... but in which the actual champagne, sparkling wine, ... is counterfeit.
  • the invention intends to provide a means that allows to easily and rapidly detect such a fraud.
  • the invention proposes in a steel wire of the type described in the introduction, that the lacquered topcoat contains an ultraviolet (UV) fluorescent component resulting in an absorption in the UV-field (200 - 400 nm.) and in an emission in the visible light (400 - 800 nm.).
  • UV ultraviolet
  • the UV-fluorescent component can be an organic colorant or pigment, which can be organic or inorganic.
  • the German company Riedel-de-Haen G.m.b.H. from Seelze sells a famous series of such UV-fluorescent components under the trademark "LUMILUX”®.
  • a first great advantage of such a wire according to the invention is that, by adding the appropriate quantity of the UV-fluorescent component to the topcoat, it will be possible to make the wire radiate a light with a typical colour when exposed to UV-light (200 - 400 nm.). Thanks to this characteristic, it will be possible to use the wire successfully to execute authenticity checks.
  • the UV-fluorescent component incorporated in the topcoat is invisible under normal light conditions and so the topcoat appears as an ordi- nary coating. However, when the topcoat is irradiated with a special UV-light, the topcoat obtains fluorescing features. It is clear from the above explanations that for checking the authenticity of such a coated steel wire, it is necessary to use a special UV light source. The general idea of using UV light for detecting the authenticity of products is a.o.
  • Another important advantage of such a wire according to the invention is, that this wire can successfully be used to obtain a decorative function because the product manufactured from such a steel wire radiates a typical colour when exposed to such special UV light sources.
  • drawing figure 1 shows the cross-section through a preferred embodiment of the wire, accor- ding to the invention.
  • Figure 1 shows a cross-section of a steel wire 10, according to the invention.
  • the wire 10 has a steel wire core 12.
  • the diameter of the wire core 12 varies between 0.1 and 2 mm.
  • the carbon content (percentage of weight) of the core 12 should preferably be lower than 0.2 %.
  • the wire 10 should preferably have a tensile strength of 200 - 1000 N/mm 2 and an elongation of at least 5 %.
  • the steel wire core 12 is covered with a curing lacquered topcoat, e.g. a thermosetting lacquered topcoat 14, containing preferably 0.2 to 5 % (percentage of weight) of the UV-fluorescent component.
  • a curing lacquered topcoat e.g. a thermosetting lacquered topcoat 14, containing preferably 0.2 to 5 % (percentage of weight) of the UV-fluorescent component.
  • the thickness of this topcoat 14 at least amounts to 10 ⁇ , and varies preferably between 10 ⁇ and 50 ⁇ .
  • the intermediate layer 16 preferably consists of zinc. An important function of this intermediate layer 16 is to improve the corrosion resistance of the steel wire 10. Other metal intermediate layers can also be applied.
  • the thickness of the interme- diate layer 16 should be at least 5 ⁇ .

Abstract

The invention relates to a steel wire consisting of a steel wire core and a curing lacquered topcoat containing a fluorescent component, whereby the carbon content of the steel wire core is lower than 0,2 % (percentage of weight) and whereby a metal intermediate layer is applied between the wire core and the curing topcoat, whereby the lacquered topcoat contains an ultraviolet (UV) fluorescent component resulting in an absorption in the UV-field (200 - 400 nm.) and in an emission in the visible light (400 - 800 nm.).

Description

STEEL WIRE WITH UV-FLUORESCENT LACQUERED TOPCOAT
This invention relates to a steel wire consisting of a steel wire core and a curing lacquered topcoat containing a fluorescent component, whereby the carbon content of the steel wire core is lower than 0,2 % (percentage of weight) and whereby a metal intermediate layer is applied between the wire core and the curing topcoat.
Such a coated steel wire is substantially known from JP 03/206204.
This known steel wire according to JP 03/206204 has the advantage, that when irradiated with visible or normal light, e.g. at night, this wire has fluorescing features. Such steel wire is used to form a danger preventing net fence.
Such coated steel wires without a fluorescent component in the topcoat are generally known and are sold by the applicant N.V. Bekaert S.A. under the brand "BEKILACQ"®. Such steel wires are a.o. used for the manufacturing of wire brackets ("muselets") to tighten corks on bottles of champagne, sparkling wine, ... or for the formation of a twined net structure around wine bottles. It is clear that these steel wires have to meet special conditions (specifications) to be transformed mechanically. The product specifications of these steel wires are described in the DS-80-11 specifications of the N.V. Bekaert S.A. (June 1997).
As topcoat a curing laque coating, based on polyurethanes, polyamides, polyamide-imides, epoxies, polyester-imides, polyvinyl buryrals, polyvinyl acetals or a combination thereof, can be used. It is also already known to add an appropriate quantity of a colour pigment to the curing topcoat in order to give the lacquered topcoat the desired colour in normal daylight. "Curing" means that the topcoat hardens as a result of a chemical reaction forming a three-dimensional polymer network. It has now been found that fraud is committed with the sale of champagne, sparkling wine, ... as all the visible characteristics of an authentic product are imitated, such as e.g. the labels, the bottle's shape and colour, ... but in which the actual champagne, sparkling wine, ... is counterfeit.
The invention intends to provide a means that allows to easily and rapidly detect such a fraud.
To that end, the invention proposes in a steel wire of the type described in the introduction, that the lacquered topcoat contains an ultraviolet (UV) fluorescent component resulting in an absorption in the UV-field (200 - 400 nm.) and in an emission in the visible light (400 - 800 nm.).
The UV-fluorescent component can be an organic colorant or pigment, which can be organic or inorganic. The German company Riedel-de-Haen G.m.b.H. from Seelze sells a famous series of such UV-fluorescent components under the trademark "LUMILUX"®.
A first great advantage of such a wire according to the invention is that, by adding the appropriate quantity of the UV-fluorescent component to the topcoat, it will be possible to make the wire radiate a light with a typical colour when exposed to UV-light (200 - 400 nm.). Thanks to this characteristic, it will be possible to use the wire successfully to execute authenticity checks.
The UV-fluorescent component incorporated in the topcoat is invisible under normal light conditions and so the topcoat appears as an ordi- nary coating. However, when the topcoat is irradiated with a special UV-light, the topcoat obtains fluorescing features. It is clear from the above explanations that for checking the authenticity of such a coated steel wire, it is necessary to use a special UV light source. The general idea of using UV light for detecting the authenticity of products is a.o. known from AU patent 706.854 ; AU patent application 1999/50145A1 ; EP 303.725A1 ; EP 328.320A1 ; EP 466.474A1 ; EP 990.890A1 ; GB 1.191.476 ; GB 2.245.895 ; US 5.824.393 and US 6.068.895.
Another important advantage of such a wire according to the invention is, that this wire can successfully be used to obtain a decorative function because the product manufactured from such a steel wire radiates a typical colour when exposed to such special UV light sources.
The invention will be further explained in the following description by means of the accompanying drawing. In the drawing figure 1 shows the cross-section through a preferred embodiment of the wire, accor- ding to the invention.
Figure 1 shows a cross-section of a steel wire 10, according to the invention. The wire 10 has a steel wire core 12. The diameter of the wire core 12 varies between 0.1 and 2 mm. The carbon content (percentage of weight) of the core 12 should preferably be lower than 0.2 %. The wire 10 should preferably have a tensile strength of 200 - 1000 N/mm2 and an elongation of at least 5 %.
The steel wire core 12 is covered with a curing lacquered topcoat, e.g. a thermosetting lacquered topcoat 14, containing preferably 0.2 to 5 % (percentage of weight) of the UV-fluorescent component. The thickness of this topcoat 14 at least amounts to 10 μ, and varies preferably between 10 μ and 50 μ.
Between the steel wire core 12 and the lacquered topcoat 14, there is a metal intermediate layer 16. The intermediate layer 16 preferably consists of zinc. An important function of this intermediate layer 16 is to improve the corrosion resistance of the steel wire 10. Other metal intermediate layers can also be applied. The thickness of the interme- diate layer 16 should be at least 5 μ.

Claims

CLA1 S
1. Steel wire (10) consisting of a steel wire core (12) and a curing lacquered topcoat (14) containing a fluorescent component, whereby the carbon content of the steel wire core (12) is lower than 0,2 % (percentage of weight) and whereby a metal intermediate layer (16) is applied between the wire core (10) and the curing topcoat (14), characterised in that the lacquered topcoat (14) contains an ultraviolet (UV) fluorescent component resulting in an absorption in the UV-field (200 - 400 nm.) and in an emission in the visible light (400 - 800 nm.).
2. Steel wire according to claim 1 , characterised in that the lacquered topcoat (14) contains 0.2 to 5 % (percentage of weight) UV-fluorescent component.
3. Steel wire according to claim 1 or claim 2, characterised in that the thickness of the lacquered topcoat (14) at least amounts to 10 μ.
4. Steel wire according to claim 3, characterised in that the thickness of the lacquered topcoat (14) varies between 10 μ and 50 μ.
5. Steel wire according to one or more of the foregoing claims 1 - 4, characterised in that the diameter of the wire core (14) varies between 0.1 and 2 mm.
6. Steel wire according to one or more of the foregoing claims 1 - 5, characterised in that the intermediate layer (16) is made of zinc.
7. Steel wire according to one or more of the foregoing claims 1 - 6, characterised in that the thickness of the intermediate layer (16) at least amounts to 5 μ.
PCT/EP2002/003340 2001-04-09 2002-03-25 Steel wire with uv-fluorescent lacquered topcoat WO2002081774A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2001/0241 2001-04-09
BE2001/0241A BE1014113A3 (en) 2001-04-09 2001-04-09 STEEL WIRE WITH FLUORESCENT UV lacquer coating.

Publications (1)

Publication Number Publication Date
WO2002081774A1 true WO2002081774A1 (en) 2002-10-17

Family

ID=3896933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/003340 WO2002081774A1 (en) 2001-04-09 2002-03-25 Steel wire with uv-fluorescent lacquered topcoat

Country Status (2)

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BE (1) BE1014113A3 (en)
WO (1) WO2002081774A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191476A (en) * 1967-10-27 1970-05-13 Foseco Int Methods for Assessing and Controlling the Uniformity and Thickness of Transparent Coatings.
US4127773A (en) * 1977-03-31 1978-11-28 Applied Photophysics Limited Characterizing and identifying materials
US4250382A (en) * 1979-08-14 1981-02-10 Scott Paper Company Coat detection method
EP0297973A1 (en) * 1987-07-01 1989-01-04 Saint-Gobain Emballage Coating control process for articles
JPH03206204A (en) * 1990-01-08 1991-09-09 Hitachi Cable Ltd Danger preventing net fence
US5286922A (en) * 1992-07-14 1994-02-15 Curtiss Thomas E Fluorescent coated wire
US5514479A (en) * 1995-06-05 1996-05-07 Feldstein; Nathan Functional coatings comprising light emitting particles
US5834065A (en) * 1992-11-13 1998-11-10 Surface Technology, Inc. Composite plated articles having light-emitting properites
WO2000036177A1 (en) * 1998-12-15 2000-06-22 N.V. Bekaert S.A. Steel wire with bright looking surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804551A1 (en) * 1988-02-13 1989-01-26 Alexandra Hausteiner Safety apparatus for two-wheeled vehicles
JPH09131349A (en) * 1995-11-10 1997-05-20 Asahi Optical Co Ltd Treating tool for fluorescence observation endoscope

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191476A (en) * 1967-10-27 1970-05-13 Foseco Int Methods for Assessing and Controlling the Uniformity and Thickness of Transparent Coatings.
US4127773A (en) * 1977-03-31 1978-11-28 Applied Photophysics Limited Characterizing and identifying materials
US4250382A (en) * 1979-08-14 1981-02-10 Scott Paper Company Coat detection method
EP0297973A1 (en) * 1987-07-01 1989-01-04 Saint-Gobain Emballage Coating control process for articles
JPH03206204A (en) * 1990-01-08 1991-09-09 Hitachi Cable Ltd Danger preventing net fence
US5286922A (en) * 1992-07-14 1994-02-15 Curtiss Thomas E Fluorescent coated wire
US5834065A (en) * 1992-11-13 1998-11-10 Surface Technology, Inc. Composite plated articles having light-emitting properites
US5514479A (en) * 1995-06-05 1996-05-07 Feldstein; Nathan Functional coatings comprising light emitting particles
WO2000036177A1 (en) * 1998-12-15 2000-06-22 N.V. Bekaert S.A. Steel wire with bright looking surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 481 (M - 1187) 6 December 1991 (1991-12-06) *

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