Security fabric with improved security and identification

Abstract

The present invention relates to an anti-counterfeit fabric with improved anti-counterfeit properties and identification properties, in an anti-counterfeit fabric comprising an anti-counterfeit yarn containing a fluorescent substance having inherent luminescent properties when irradiated with excitation light, the anti-counterfeit yarn being contained in the warp, or the weft, or the warp and the weft, and a set number of the anti-counterfeit yarns being contained per unit area.

Description

TECHNICAL FIELD

[0001] The present invention relates to a security fabric having improved security and identification, and to a security fabric having improved security and identification by changing the content of a fluorescent substance in a certain area. BACKGROUND

[0002] In the field requiring security, a security substance can be said to be indispensable. As an example, in the field of security printing, a security substance is used for valuable securities such as checks, stamps, gift certificates, vouchers, bonds, etc.

[0003] Recently, in the field of fiber products such as clothing, shoes, etc., there has been a demand for security technology using a security substance. Clothing, shoes, etc. are products processed with fibers and are used in actual life, but since there have been many cases of counterfeiting recently, there is an urgent need to develop a security fiber that can solve this problem.

[0004] In order to solve this problem, a security element such as a fabric tag, a printed name tag, etc. of a trademark, etc. is marked, but these security elements are easily counterfeited and can be simply manufactured as long as a sample is available, and have a disadvantage in that it is difficult to distinguish them from the real product.

[0005] In this regard, Korean Registered Patent No. 0945471 discloses a fluorescent thread for security and a paper for security formed by including the fluorescent thread for security, the fluorescent thread for security being a thread for security suitable for a paper for security, a first fluorescent substance of a different color being adhered at a position spaced apart by a predetermined interval from one end of the fluorescent thread for security having a predetermined length, and being extended to the other side of the first fluorescent substance by a predetermined interval to form, a second fluorescent substance being adhered to the other end of the thread for security, the first fluorescent substance and the second fluorescent substance being spaced apart by a predetermined interval and forming a plurality of threads on both sides of the thread for security. Korean Registered Patent No. 0967087 discloses a paper for security in which invisible fluorescent pigments or near-infrared absorbing pigments are appropriately arranged on the surface of a polyethylene terephthalate (PET) film, fluorescent colors such as red, yellow-green, blue, green, etc. that are intended to be expressed are intaglio-printed in a width having a predetermined interval in a size of 0.5 mm to 0.75 mm per color, and then are finely cut in a direction orthogonal to the fluorescent color band to make a fluorescent color thread, thereby freely expressing the color of one fluorescent color thread to improve security. Korean Published Patent No. 2016-0077612 discloses a security pattern sheet including a fluorescent printing layer printed using fluorescent printing ink containing fluorescent pigments, and a UV fluorescent extinction layer stacked on the fluorescent printing layer and printed with ink for security pattern formation, characterized in that an image of a security pattern recognized by a human eye under visible light and an image of a security pattern recognized by a human eye under UV light are different from each other.

[0006] In the case of a sheet-shaped security article as described above, most of the techniques are techniques of including a fluorescent substance used as a security substance on a sheet and detecting the same to determine whether it is counterfeit, and with the evolution of high-speed developing detection equipment, there is a problem in that not only a security element is easily recognized with ordinary equipment, but also the recognized security element is easily copied as it is.

[0007] Accordingly, it is necessary to study a security article that not only prevents recognition of a security element including a security substance itself, but also cannot be copied to have the same security characteristics as the security element even if the security element can be recognized. SUMMARY

[0008] Problems to be solved by the invention

[0009] The present application was invented to solve the problems of the prior art described above, and aims to provide a security fabric having improved security and recognition, which forms a pattern inside a fabric by a security thread included in a sheet-shaped security fabric, and improves security through the pattern.

[0010] Further, the present application aims to provide a security article having improved security and identification, in which the security fabric having improved security and identification of the present application is formed in a deformable pattern, and thus the pattern can be changed according to manufacturers, sellers, etc.

[0011] Method of solving the problem

[0012] The present application provides a security fabric having improved security and identification, characterized in that, in a security fabric containing a security yarn containing a fluorescent substance having an inherent luminescent property when excited light is irradiated, the security yarn is contained in the warp, or the weft, or both the warp and the weft, and a predetermined number of the security yarns are contained per unit area.

[0013] Further, a security fabric having improved security and identification is provided, characterized in that the number of the security yarns contained per unit area is repeated in a predetermined pattern.

[0014] Further, a security fabric having improved security and identification is provided, characterized in that the pattern is repeated in the warp direction, or the weft direction, or both the warp and the weft directions.

[0015] Further, a security fabric having improved security and identification is provided, characterized in that the pattern is repeated in 2 to 4 unit areas.

[0016] Further, a security fabric having improved security and identification is provided, characterized in that the boundary line of the unit area is formed by a boundary yarn containing a fluorescent substance having an emission wavelength in the visible light band when excited light is irradiated.

[0017] Further, a security fabric having improved security and identification is provided, characterized in that the boundary line of the unit area is formed by a boundary yarn that is a dope dyed yarn.

[0018] Further, a security fabric having improved security and identification is provided, characterized in that the yarns inside the unit area are formed by semi dull yarns (SEMI DULL), and the boundary line of the unit area is formed by full dull yarns (FULL DULL).

[0019] Further, a security fabric having improved security and identification is provided, characterized in that the frequency of the security yarns exposed to one side of the security fabric is 50% or more.

[0020] Further, a security fabric having improved security and identification is provided, characterized in that the security fabric further contains a second security yarn containing a fluorescent substance having a different inherent luminescent property from the security yarn.

[0021] Effects of the invention

[0022] As described above, the anti-counterfeiting fabric with enhanced anti-counterfeiting and identifiability according to the present invention has the effect of enhancing anti-counterfeiting through patterns by including anti-counterfeiting threads in a sheet-like anti-counterfeiting fabric and forming patterns inside the fabric according to the number of anti-counterfeiting threads contained per unit area.

[0023] Furthermore, the anti-counterfeiting articles of the present invention, which have improved anti-counterfeiting and identification properties, can have their patterns changed. The patterns can be altered according to the manufacturer, distributor, etc., thus having an identification effect.

[0024] Furthermore, by using different patterns from manufacturers and distributors, it is possible to achieve effects that are difficult to counterfeit, highly identifiable, and further enhance anti-counterfeiting capabilities. Attached Figure Description

[0025] Figure 1 This is a diagram illustrating the use of anti-counterfeiting threads and patterning on the weft of an anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to the present invention.

[0026] Figure 2 This is a diagram illustrating the use of anti-counterfeiting threads and patterning on the warp and weft of an anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to the present invention.

[0027] Figure 3 This is a diagram showing the exposed state of the anti-counterfeiting threads in the anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to the present invention. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. First, it should be noted that the same constituent elements or components are indicated by the same reference numerals as much as possible in the drawings. In describing the present invention, detailed descriptions of related known functions or configurations will be omitted to avoid obscuring the essence of the invention.

[0029] The terms “about,” “substantially,” etc., used in this specification mean that the inherent manufacturing and material tolerances present in the stated meaning are used in terms of that value or close to that value, and are used to prevent the disclosure of precise or absolute values ​​mentioned to aid in the understanding of the invention from being improperly used by unethical infringers.

[0030] This invention relates to the use of fluorescent substances that have inherent luminescent properties when irradiated with excitation light. The fluorescent substances can be fluorescent substances with emission wavelengths in the invisible light band or fluorescent substances with emission wavelengths in the visible light band.

[0031] When using fluorescent substances with emission wavelengths in the invisible light band, the advantages are that not only is it difficult to identify the anti-counterfeiting elements themselves through anti-counterfeiting products, but even if the anti-counterfeiting elements can be identified, it is possible to distinguish and confirm the anti-counterfeiting elements of genuine products and the copied / counterfeited anti-counterfeiting elements with high accuracy. When using fluorescent substances with emission wavelengths in the visible light band, the advantages are that the anti-counterfeiting elements of anti-counterfeiting products can be visually identified, which can improve the user's identification of genuine products, and can reduce attempts at illegal production due to the difficulty of copying / counterfeiting.

[0032] "Inherent luminescence properties" refer to the inherent emission wavelength, emission intensity, afterglow mode, and afterglow emission time (emission lifetime) characteristics of each fluorescent material.

[0033] In this specification, "emission wavelength in the invisible light band" refers to the emission of wavelengths other than those of visible light. For example, it may refer to the emission of wavelengths in the infrared and / or ultraviolet bands. In this case, "emission wavelength in the invisible light band" should not be interpreted as the emission of only wavelengths other than those corresponding to visible light (380nm to 780nm), but rather as the emission of wavelengths of light that are practically indistinguishable to the human eye. "Emission wavelength in the visible light band" refers to the emission wavelength that includes wavelengths corresponding to visible light (380nm to 780nm).

[0034] In this specification, "fluorescent material having an emission wavelength in the invisible light band" or "fluorescent material having an emission wavelength in the visible light band" refers to a fluorescent material that emits a specific emission wavelength when irradiated with excitation light. This also includes fluorescent materials that typically do not emit light at the aforementioned wavelengths when not irradiated with excitation light, but exhibit afterglow after irradiation.

[0035] Preferably, the difference between anti-counterfeiting products containing "fluorescent substances with emission wavelengths" and ordinary products without fluorescent substances cannot be distinguished by the human eye.

[0036] The fluorescent material having an emission wavelength in the invisible light band or an emission wavelength in the visible light band can be used, as long as it meets the conditions of this invention. For example, fluorescent materials having an emission wavelength in the invisible light band can be SrB4O7:Eu or Y3Fe4InO. 12 In addition to the invisible light emitters disclosed in Korean Patent No. 1238197 and Korean Patent No. 1599808, the fluorescent material having an emission wavelength in the visible light band can be Y2O3:Eu, Y2O2S:Tb, Zn2SiO4:Mn, or Y3Fe4InO. 12Er and PANAX RED LR-770, PANAX YELLOW-550, PANAX BLUE PKS-245, PANAX LG-880, etc., manufactured by Asahi Chemical Co., Ltd.

[0037] Figure 1 This is a diagram illustrating the use of anti-counterfeiting threads and patterning on the weft of an anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to the present invention. Figure 2 This is a diagram illustrating the use of anti-counterfeiting threads and patterning on the warp and weft of an anti-counterfeiting fabric with enhanced anti-counterfeiting and identifiability according to the present invention. Figure 3 This is a diagram showing the exposed state of the anti-counterfeiting threads in the anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to the present invention.

[0038] like Figure 1 , Figure 2 As shown, the present invention relates to an anti-counterfeiting fabric 200 comprising an anti-counterfeiting silk 100 containing a fluorescent substance that has inherent luminescent properties when irradiated with excitation light.

[0039] The anti-counterfeiting fabric 200 is formed of anti-counterfeiting yarn 100 containing fluorescent material and ordinary yarn 150 without fluorescent material.

[0040] The anti-counterfeiting wire 100 may be contained in warp threads, weft threads, or both warp and weft threads, and may contain a set number of the anti-counterfeiting wires per unit area.

[0041] The fabric can be designed such that the number of anti-counterfeiting threads 100 per unit area is patterned by repeating a set pattern.

[0042] The anti-counterfeiting silk 100 is a silk containing fluorescent material. It can be prepared by spinning by including the fluorescent material in the masterbatch, or by coating the fiber with a coating liquid containing fluorescent material. Fluorescent material can be included in the anti-counterfeiting sheet in various ways.

[0043] When the anti-counterfeiting yarn is used in synthetic or regenerated fibers, it is preferably formed by including fluorescent material in the masterbatch; when used in natural fibers, it is formed by coating the fibers to include fluorescent material.

[0044] When the anti-counterfeiting yarn is formed by spinning, it can be formed into multi-strand filaments. However, if the content of fluorescent material is increased to improve the detectability of the anti-counterfeiting yarn, filament breakage may occur during the spinning process, thereby reducing operability. Therefore, forming it into a single-strand filament can increase the content of fluorescent material and improve detectability.

[0045] Furthermore, after the anti-counterfeiting silk is formed into a single fiber, it can be spun into yarn, which can increase the content of fluorescent substances and be used in various products.

[0046] The unit area containing the anti-counterfeiting thread can be set to any size during fabric design, and the size of the unit area can be set based on the size of the detector's sensing capacity so that the detector can sense the unit area at once.

[0047] like Figure 1 As shown, when the anti-counterfeiting thread is only contained in the weft, the pattern repeats in the warp direction; when it is contained in the warp, the pattern repeats in the weft direction.

[0048] In addition, when both the warp and weft threads contain the anti-counterfeiting thread, the pattern is repeated in the warp and weft directions, and the luminous characteristics vary from one another to the other based on the unit area, making it difficult to counterfeit.

[0049] Although repeating the pattern in the warp and weft directions can reduce the possibility of counterfeiting, the high content of anti-counterfeiting yarn will reduce economic efficiency. Therefore, the design should be appropriately adjusted according to the product's use and purpose.

[0050] The pattern can be designed to repeat in a range of two or more unit areas through fabric design, but for ease of inspection, it is preferable to repeat in a range of 2-4 unit areas.

[0051] The unit area can be set without further distinction, but to improve detection convenience, it is preferable to form boundary filaments 300 on the boundary surface of the unit area to facilitate identification of the unit area, such as... Figure 1 , Figure 2 As shown.

[0052] As a method to identify the unit area, the unit area under excitation light irradiation can be confirmed by a detector, and the boundary line of the unit area can be formed by a boundary filament 400 containing a fluorescent material that emits a visible light wavelength under excitation light irradiation.

[0053] Alternatively, the boundary line of the unit area can be formed as the boundary filament of the solution-dyed yarn, thereby making it easy to distinguish the unit area.

[0054] Alternatively, the filaments forming the unit area are made of semi-dull yarn, and the boundary lines of the unit area are made of full-dull yarn, so that the unit area can be distinguished by the difference in the luster of the anti-counterfeiting fabric.

[0055] Most preferably, boundary filaments containing fluorescent material that emits a visible light wavelength when irradiated with excitation light are used to identify the unit area so that it is not visually distinguishable under normal circumstances, thereby reducing the possibility of counterfeiting the unit area.

[0056] As described above, the anti-counterfeiting fabric of the present invention can be designed with various patterns based on the difference in the content of patterned anti-counterfeiting yarn per unit area. Different patterns can be made according to multiple manufacturers, distributors, etc., or according to different products, thereby further improving the anti-counterfeiting performance.

[0057] As an example, such as Figure 1 As shown, when the anti-counterfeiting thread is included in the weft thread and formed in a pattern of 4, 2, 4, or 2 anti-counterfeiting threads per unit area, the pattern repeats in 2 unit areas, and the pattern repeats in the warp direction.

[0058] As another example, such as Figure 2 As shown, when the anti-counterfeiting wire is included in the warp and weft and a pattern of 4, 2, 4, or 2 anti-counterfeiting wires per unit area is formed in the warp and weft, the pattern repeats in 4 unit areas of 2×2, and the pattern repeats in the direction of the warp and weft.

[0059] As described above, in the anti-counterfeiting fabric of the present invention, anti-counterfeiting yarn is used in the warp, or weft, or warp and weft, and the content of anti-counterfeiting yarn per unit area is controlled, thereby enabling a variety of patterns.

[0060] The anti-counterfeiting fabric of this invention, which enhances anti-counterfeiting and identification properties, is a fabric formed by the intersection of warp and weft threads, such as... Figure 3 As shown in (a), when the fabric structure is formed in plain weave, the frequency of exposure of the warp or weft on one side of the fabric is 50%.

[0061] To improve the detectability of the anti-counterfeiting fibers in the anti-counterfeiting fabric with enhanced anti-counterfeiting and identifiability according to the present invention, it is preferable to use... Figure 3 (b) Figure 3 (c) shows the fabric design so that the anti-counterfeiting yarn 100 is more exposed on one side of the anti-counterfeiting fabric than the ordinary yarn 150.

[0062] like Figure 3 (b) Figure 3 As shown in (c), preferably, the exposure frequency of the anti-counterfeiting thread 100 is increased, and the exposure frequency of the anti-counterfeiting thread to one side of the anti-counterfeiting fabric is made to be 50% or more.

[0063] In addition, to further enhance the anti-counterfeiting properties and recognizability of the anti-counterfeiting fabric according to the present invention, the anti-counterfeiting fabric may also contain a second anti-counterfeiting thread containing a fluorescent substance having inherent luminescent properties different from those of the anti-counterfeiting thread.

[0064] Preferably, the second anti-counterfeiting wire is included in a number set per unit area, similar to the anti-counterfeiting wire mentioned above. Preferably, the number per unit area is a repeating pattern.

[0065] Through the anti-counterfeiting yarn and the second anti-counterfeiting yarn, the anti-counterfeiting fabric of the present invention can be designed with more diverse patterns, thereby further improving anti-counterfeiting properties and identifying users such as manufacturers and distributors.

[0066] The anti-counterfeiting and identifiability enhanced anti-counterfeiting fabric of the present invention, constructed as described above, can detect the luminescence characteristics of fluorescent substances contained in the anti-counterfeiting fabric using the detector and detection method disclosed in Korean Patent Application No. 2076059. The detector includes a light-emitting part that emits light, a receiving part that receives the emission signal emitted by the fluorescent substance emitted from the light-emitting part, and a control part that determines the authenticity of the object to be detected based on the signal received by the receiving part.

[0067] By detecting the inherent luminescence characteristics of fluorescent substances contained in a unit area using the detector described above, the authenticity of a product can be determined.

[0068] In addition, manufacturers and distributors can be identified by patterns per unit area. Patterns per unit area of ​​each manufacturer or distributor can be stored in the detector, thereby further improving detection efficiency, anti-counterfeiting, and recognizability.

Claims

1. A type of anti-counterfeiting fabric with enhanced anti-counterfeiting and identifiability, characterized in that, In anti-counterfeiting fabrics containing anti-counterfeiting threads that contain fluorescent substances that have inherent luminescent properties when exposed to excitation light, The anti-counterfeiting yarn is contained in the warp and weft threads. Furthermore, each unit area contains a predetermined number of the aforementioned anti-counterfeiting threads. The number of anti-counterfeiting threads contained in each unit area repeats in a set pattern, wherein the unit area is defined by boundary threads. The pattern is repeated in the directions of longitude and latitude. The pattern repeats in two or more unit areas and is designed based on the difference in the content of anti-counterfeiting threads per unit area. Detect and identify the inherent luminescence characteristics of fluorescent substances contained per unit area.

2. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The pattern is repeated in areas of 2 to 4 units.

3. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The boundary line per unit area is formed by boundary filaments containing fluorescent material that emits a visible light wavelength when irradiated with excitation light.

4. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The boundary line of the unit area is formed as the boundary filament of the solution-dyed yarn.

5. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The filaments forming the interior of the unit area are formed with semi-dull filaments, and the boundary lines of the unit area are formed with full-dull filaments.

6. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The frequency of the anti-counterfeiting thread being exposed to the side of the anti-counterfeiting fabric is more than 50%.

7. The anti-counterfeiting fabric with improved anti-counterfeiting and identifiability according to claim 1, characterized in that, The anti-counterfeiting fabric also includes a second anti-counterfeiting thread containing a fluorescent substance with inherent luminescent properties different from those of the anti-counterfeiting thread.

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