JP2003251907A - Invisible code-fixed lamella body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an invisible code-fixed body, which has an excellent detection reliability as an identifying sign and can identify by a method wherein an invisible sign by a digital system or the like is given to a cloth having large surface unevenness or the like. <P>SOLUTION: This invisible code-fixed lamella body is produced by fixing an invisible code with ink containing detecting bodies detactable only by a technique except visual recognition to the surface to be covered of a lamella body such as the cloth, the fixing place of which is covered with a water- insoluble polymer compound, so as to form the detectable invisible code. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord, which is invisible (cannot be visually recognized as predetermined information or symbol), at least a fixing portion of which is coated with a water-insoluble polymer compound, artificial leather, or leather. An invisible code adhered thin film adhered and formed on a covering surface of a thin leaf body made of one or more selected from the following: by attaching an invisible code which is at least invisible information or a symbol, a labeled cloth or artificial leather , Regarding thin leaf made of one or more kinds selected from leather, in detail, thin materials made of one or more kinds selected from cloth, artificial leather, leather such as fashion materials, miscellaneous goods, tag tags, etc. On top of that, colors, images,
Select from cloth, artificial leather, and leather to form records of bibliographic items that can be used for determining ownership, origin, credibility, etc., reproduction prohibition, order management, etc. for colored objects with colored characters etc. The present invention relates to a thin leaf body in which an invisible cord is fixedly formed on a thin leaf body composed of one or more types of the thin leaf body. In addition, this invisible code is detected (read) and used for confirmation of ownership, origin, credibility, etc., order management, distribution management, inventory management, etc.

[0002]

2. Description of the Related Art In recent years, a product such as a bar code or other information has been actively formed and added to a product to confirm the manufacturer of the product, prevent forgery of the product, and efficiently manage the product. Images are often handled as products, and there are many problems such as the determination of authenticity related to the copyright, moral rights, portrait rights, etc. of the image. In devising to solve these problems, a visible or invisible mark etc. is attached on or in the image etc., and its ownership, origin,
Many proposals have been made, such as confirmation of authenticity, prohibition of duplication, and order management. It is said that these visible or invisible identification marks have an effect of restraining and suppressing others who illegally use or forge products or images. In the case of a visible mark, a proof that can be seen with the naked eye and cannot be hidden can be shown, and the proof can be clearly shown to others, which has a powerful effect. However, such a visible mark has a problem that it is often easy to erase it and forge it.
In recent years, instead of such visible marks, invisible marks are frequently used, various methods have been proposed and disclosed, and development efforts have been made.

In many proposals of such invisible marks, the one using digital information which has been developed in recent years is the mainstream. For example, one using a difference in luminance and a specific dot pattern in Japanese Patent Laid-Open No. 10-191017. To be superimposed on the image, etc., the dot pattern or dot digital information is made to exist on the image in a specific method or rule,
Those that can be read only by that particular method or rule, those that are specially encrypted by making various changes to that particular method or rule and made invisible, and recorded on or in the image, and images are illegally Examples include a device that makes it easy to identify the device when using or copying.

[0004]

PROBLEM TO BE SOLVED BY THE INVENTION Conventionally known, by attaching a visible or invisible identification mark or the like (marking symbol) on or in such an image, etc., its ownership, origin, credibility, etc. are determined. There are prescriptions that are used for copy prohibition, order management, etc., but most of these prescriptions are given to paper,
This is significantly different from the surface property of the thin leaf body made of one or more kinds selected from the cloth, artificial leather and leather in the present invention. For example, when dots are applied as digital symbols, which is an example of an invisible mark, the adhesion of coloring materials such as ink for applying dots (dots) where the symbols are formed is better than that of paper. The surface properties of thin leaves made of one or more kinds selected from cloth, artificial leather, and leather are very different, and they are extremely inconvenient in that they are imparted according to the setting of symbols in the digital system and are inferior in durability. The conventional labeling of symbols by such a digital method does not cause any particular problem when the symbols are generated or set, but when the symbols are applied to the cloth or the like, the surface unevenness of the cloth (fiber gap, fluff, fluff, Due to the fact that the thickness of one fiber has a surface unevenness that is greatly different from that of paper), there are many problems such as the fact that the symbol is not added accurately in the digital system and the reliability and detection (reading) as the symbol becomes inaccurate. It will be. Also,
The conventional digital signing of symbols by such a digital system does not consider dropping of symbols for washing and the like, and as in the present invention, a thin sheet made of one or more kinds selected from cloth, artificial leather, and leather. In the case of the above description, the watermark code, which is an identification symbol given by the symbol in the digital system, may be lost by washing, and repeated identification and recognition may become impossible.

[0005]

SUMMARY OF THE INVENTION The present invention has solved the problems of the prior art, and is a symbol in an accurate digital system according to the surface property of a thin leaf body made of one or more kinds selected from cloth, artificial leather and leather. It solves the problems of lacking reliability of detection as an identification symbol without being added, and the problems of being lost by washing and making repeated identification and recognition impossible. That is, the present invention comprises an ink containing a detection body which can be detected only by a method other than visual recognition, and at least one selected from a cloth coated with a water-insoluble polymer at a fixed portion, artificial leather, and leather. An invisible code-adhered thin leaf, characterized by being adhered to the covering surface of a thin leaf to form an invisible code and being labeled with the invisible code, and a predetermined color different from the invisible code.
Coloring of an image such as an image, a character, or a photograph is the invisible code-fixed thin leaf that is formed, and the invisible code is the invisible code-fixed thin leaf in which the invisible code is an electronic encryption watermark code, and the invisible code is also invisible. The fixed thin leaf is the invisible code fixed thin leaf that is a tag for labeling, and the coloring of an image such as a predetermined color, image, character, or photograph different from the invisible code fixed and the invisible code is an inkjet printing method. It is the above-mentioned invisible cord-fixed thin leaf body made in.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, the thin leaf material which is one or more kinds selected from cloth, artificial leather, and leather used in the present invention is not particularly limited, and examples thereof include non-woven fabric, woven fabric, and knitted fabric. Artificial leather, which is a sheet that is made by coating urethane-based resin, etc. on the base material of cloth such as non-woven fabric, woven fabric, and knit, and gives a leather-like shape by surface treatment and internal treatment of polymer sheet material such as urethane-based resin Artificial leather, cowhide, pigskin, sheepskin, deer skin and other animal leathers. In the present invention, these thin leaves have at least a portion to which the invisible code is fixed are coated with a water-insoluble polymer compound, and the polymer compound used for the coating includes cloth, artificial leather, and leather. It is not particularly limited as long as it is fixed to the surface and does not easily fall off by washing or the like, and it is water-insoluble and may be any one as long as it has a function as an ink receiving layer of the ink containing the detection body, For example, vinyl acetate resin, acrylic resin such as methyl methacrylate and methacrylate, polyester resin such as polyethylene terephthalate copolymer, polyamide resin such as hexamethylene adipate copolymer, vinyl chloride resin, water-insoluble polyvinyl Alcohol resin, styrene copolymer, phenol resin, polyurethane resin, Ribuchiraru resins. The water-insoluble polymer compound of the present invention,
Sodium alginate, carboxymethyl cellulose, polyvinylpyrrolidone, polyacrylic acid, starch, etc., which is coated on the fabric surface by a conventional inkjet and functions as a receiving layer for a dye-containing inkjet ink and is removed from the fabric surface at the same time as or after the fixing process of the dye. It is different from the water-soluble polymer compound.

The method for coating a thin leaf material of the present invention, which is made of one or more kinds selected from a cloth, artificial leather, and leather in which at least the invisible code fixing portion is coated with a water-insoluble polymer, is not particularly limited, but a screen is used. method,
A coating method, a spray method, an inkjet printing method and the like can be mentioned. The coating of the water-insoluble polymer compound is the type of the material of the cloth, artificial leather, and leather, the difference in surface irregularity, the length and thickness of the single yarn of the fibers constituting the cloth, and the convergence density of the single yarn of the fiber. The applied amount and the coating method are selected and used according to the difference in the above. These coatings may be formed by simply applying a water-insoluble polymer compound to a cloth or the like and drying it, but preferably, it is further subjected to heat treatment, thermocompression bonding treatment, calender treatment, chemical treatment or the like to firmly adhere to the thin leaf surface. It is designed not to fall off by washing, washing with water, etc., to easily receive the invisible code forming liquid and to be easily fixed. The thickness of this coating is not particularly limited, but 1 μm
m to 1 mm, preferably 3 μm to 300 μ
m, which is firmly fixed to the surface of the thin leaf and does not fall off by washing, washing, etc., and is a thickness which easily receives the invisible code forming liquid (ink containing the detection body) and is easily fixed, and It is necessary not to impair the texture of the fabric.

[0008] By forming an invisible code on the coated surface of a thin leaf body made of one or more kinds selected from cloth, artificial leather, and leather in which at least a fixing portion is coated with a water-insoluble polymer, surface irregularities of the cloth are formed. Characteristics (fiber gaps, fluffs, and the thickness of a single fiber has surface irregularities that are significantly different from paper), an accurate digital symbol is not added, and reliability as a symbol and detection (reading) become inaccurate. The problems such as the above can be solved, and the detectability (readability) of the invisible code formed on the paper can be approached as much as possible. As the invisible code in the present invention, a method other than visual recognition in the case where at least the fixing part is formed on the coated surface of a thin leaf body composed of one or more selected from a cloth coated with a water-insoluble polymer, artificial leather, and leather. The detection body that can be detected only in, but is not particularly limited, from the meaning of the present invention, cloth, artificial leather, a character or code that is an invisible code formed on a thin leaf that is one or more selected from leather It suffices that a predetermined symbol such as a symbol cannot be visually recognized as a predetermined symbol (can be visually recognized as information or a symbol) and can be detected only by a method other than visual recognition.

Even if the invisible code is a visible code such as an electronically encrypted watermark code (for example, each dot is visible), its formation is electronically encrypted, and characters and codes When the detection object itself is visible as a latent image in the image other than the watermark code, it may be a coloring material such as a dye or a pigment, or an invisible code. Is formed in a format that is not electronically encrypted, the detector itself must be invisible. In that case, for example, a transparent conductive indium-tin oxide complex, indium oxide, or tin oxide is used. , Zinc oxide, etc., and further transparent materials such as oxides and borides of silicon, aluminum, gold, silver, titanium, etc., nitrides and simple substances or composites of metals themselves,
One selected from one or more of a white body and a light-colored body is used, and these are appropriately selected and adopted depending on the required quality. The shape of these detectors is not particularly limited, and is preferably minute, and particularly preferably those having an average diameter of 10 μm or less, more preferably those having an average diameter of 1 μm or less and those having molecular dispersion. is there.

In the present invention, there are two methods for forming a thin leaf, which is one or more kinds selected from invisible cord cloth, artificial leather, and leather, on the surface coated with a water-insoluble polymer compound. For example, even if a minute portion forming a code is visible, such as an electronically encrypted watermark code (for example, each dot is visible), the formation is still electronically encrypted. Is a method such as a character that cannot be recognized as a predetermined symbol such as a character or code as a whole, and is made to exist as a latent image in the image other than the electronic encryption watermark code. In the case where it is formed without being formed, that is, when a predetermined symbol such as a character or code exists as a predetermined symbol as it is in the latent image and is invisible, a predetermined symbol such as an invisible character or code is formed. It is that way. Among these, the electronically encoded watermark code that is difficult to forge or imitate is preferable. Further, it is preferably adopted that the watermark code is formed by an inkjet printing method.

The invisible cord-fixed thin leaf material is made of one or more materials selected from cloth, artificial leather, and leather as described above, and may be in the form of a sheet, clothes, or miscellaneous goods. It may well be a thin leaflet such as a tag, and the form of these cloth, leather or artificial leather product is not limited, and it may be cloth or leather or artificial leather itself and not particularly colored. Of course, it may be one that is decorated with dyeing, coloring, embroidery, or the like. Among these product forms, it is preferable that a predetermined color, an image, a character, an image such as a photograph, which is different from the invisible code, is formed, and the product is decorated with dyeing, coloring, embroidery, etc. Is preferred. In particular, textile products such as clothes and ornaments, and tag tags used for clothes and various products are more preferable forms. Different from the invisible code in the present invention, an image of a predetermined color, image, character, photograph, etc., on the coated surface of the water-insoluble polymer compound of one or more thin leaves selected from cloth, artificial leather, and leather. , Coloring, etc.
The color may be entirely colored as a single color on the thin leaf body, or different colors may be entirely colored as a plurality of colors on the thin leaf body, and the single or multiple colors may be the thin leaf body. It may be partially colored only at a predetermined position on the top, or may be a so-called digital print in which images such as photographs, paintings, characters and photographs are digitized and reproduced on the thin leaf body.

Predetermined colors, images, characters, etc. on the thin leaf body
For coloring an image such as a photograph, a known coloring technique such as dip dyeing, printing, transfer printing, and an inkjet type dyeing method can be used. Preferably, a method of coloring with a digital printing method such as an inkjet printing method in view of the gist of the present invention including the case where the invisible code is formed on the thin leaf as a symbol in digital printing such as an inkjet printing method ( This is a so-called digital printing method).
Coloring with a more preferable inkjet method among digital printing methods is not limited to one of various inkjet methods such as a thermal inkjet method, a piezo inkjet method, a bipolar deflection method, and a multi-deflection method. , Which is appropriately selected and used for coloring by an inkjet method, and a specific pattern may be colored (printed) on the thin leaves by the inkjet method (direct inkjet printing method). The predetermined surface of the thin leaf may be colored by a method of transferring and coloring with a pattern paper obtained by an inkjet method (inkjet transfer method).

The invisible code in the present invention is a cloth,
Artificial leather, a symbol (or electronic encryption symbol) formed separately for decorative colors and images formed on the surface of one or more thin leaves selected from leather, and invisible in a strict sense. Rather, it may be one that is not perceivable as a predetermined image that is information or a symbol to humans, that is, one that is invisible, and as a color, strictly, one selected from cloth, artificial leather, and leather. Even if it exists in a microscopic shape on the above thin leaf body, it is a symbol (or an electronically encoded watermark symbol) that only needs to be buried in an image or color, and its microscopic shape (for example, one dot) However, even if it exists on one or more thin leaf bodies selected from cloth, artificial leather, and leather, it does not matter as long as it cannot be visually recognized as a color, an image, or a character when viewed by the naked eye. It is a thing. For example, artificial leather for decoration purposes, such as barcodes, or those that have no meaning as colors, images, or characters on one or more thin leaves selected from leather, but are recognized as images by the human eye. Is not a watermark code in the present invention, on the contrary, even if it is recognized as one of the halftone dots when observed with a magnifying glass, the color on one or more thin leaves selected from cloth, artificial leather, and leather. Those which are not hidden to see from the whole image but are merely hidden halftone dots are included in the invisible code of the present invention,
A signal that is invisible to the naked eye and that can be detected as a signal by a method other than visual recognition, that is, a detection device such as an optical detector is naturally included in the invisible code of the present invention. The invisible code in the present invention may be the one described above, but is preferably an invisible code formed by an inkjet printing (digital printing) method.

The detector as an invisible code used for giving the invisible code in the present invention is not particularly limited as long as it corresponds to the purpose of the above-mentioned detector as an invisible code, but as another preferable example. Is a colored body (dye, pigment, etc.) and hue and / or saturation used for images such as colors, images, characters, and photographs formed on one or more thin leaves selected from cloth, artificial leather, and leather. The difference between the two is, for example, an optically detectable colored body.Examples of these colored bodies include a predetermined color, an image, a character, which is different from the invisible code.
There are dyes and pigments having a specific reflection wavelength range (or reflection wavelength peak) different from the dyes used for coloring images such as photographs, phosphor dyes and pigments, and UV-excited dyes and pigments.
Further, in addition to these, a reflector of an infrared ray or near infrared ray absorber, a magnetic powder and the like can be mentioned. Further, by using together with those exemplified as the above-mentioned detection body and the color bodies used for the colors, images, and characters formed on the thin leaves at the same time, the visibility is lowered and as an invisible code, It will be more preferable.

These invisible code detectors are contained in, for example, polyester particles, and the resin particles containing the detectors for forming the invisible code and, if necessary, a dispersion stabilizer, a viscosity modifier, and a wetting agent. Dispersing one or more selected from agents and the like in a liquid medium such as water or a solvent to form a detection medium, this detection medium is one or more thin leaf waters selected from cloth, artificial leather, and leather. It is more preferable that the invisible code is formed on the coated surface of the insoluble polymer compound by a means such as printing or coating, whereby the fixation between the coated surface of the water-insoluble polymer compound and the detection body of the invisible code becomes stronger. It is excellent in washing resistance and detectability. The formation of the invisible code is not particularly limited in terms of means and method, but a method of forming by digital printing such as an inkjet printing method is preferable. These invisible codes in the present invention may be formed at any position of one or more thin leaf bodies selected from cloth, artificial leather, and leather, but for detecting or reading the invisible code. Is more preferably limited to a specific portion of one or more thin leaf bodies selected from cloth, artificial leather, and leather.

Detection and detection of the detection object in the invisible code is conventionally formed on the specific surface irregularities because the invisible code is one or more thin leaves selected from cloth, artificial leather and leather. In particular, in the case of a dot symbol such as that formed with an inkjet printer, cloth,
Pre-defined symbol or setting symbol before being formed on artificial leather or one or more thin leaf bodies selected from leather, and when it is detected after being formed (or when it is detected and decryption is restored to the setting symbol) In many cases, it is difficult for the symbols to be the same, and it is difficult to detect them without performing correction or correction processing. However, the thin leaf surface of the cloth or the like on which the invisible code of the present invention is fixedly formed is coated with the water-insoluble polymer compound, so that the detection becomes extremely easy. That is, without being affected by the surface fluff of the cloth or the like and the fiber yarn gap,
Since the invisible code on the water-insoluble polymer coating formed on the outermost surface of the fabric is formed without causing depressions, diffusions, dents, etc. on these surface irregularities, the invisible code formed on the paper Equally detectable.

Examples are shown below, but the present invention is not limited thereto. Example 1 A double knit fabric having a width of 50 cm and a length of 30 m is knitted using a yarn using 100% polyester and a yarn using 100% cotton to be a yarn using front polyester 100% and a yarn using 100% cotton back, It was refined and finished to make white dough.
Only the area corresponding to the following invisible code forming part of this white cloth, the size of which is 5 mm larger in all surroundings (range 2.5 cm x 2.5 cm), 69 mol% of terephthalate units and 25 mol of isophthalate units %, Other dibasic acid units 6 mol% (here, 5-sodium sulfoisophthalate unit was used), trioxyethylene glycol unit 5 mol%, ethylene glycol unit 8
8 mol% and other diol units 7 mol% (here, neopentyl glycol units were used) A finely dispersed aqueous dispersion of a polyester from a copolyester was used to obtain a dry thickness of 3 μm. To form a water-insoluble polymer coating. On the other hand, 5.0% by weight of a fluorescent whitening agent of a benzimidazole derivative, 0.01% by weight of a yellow disperse dye, 2% by weight of glycerin, 1% by weight of diethanolamine, and 7% by weight of sodium lignin sulfonate were added to the fluorescent whitening. I made an ink. Using this fluorescent whitening ink, using an inkjet printer, an invisible code is formed at the site where the water-insoluble polymer coating on the polyester yarn side of the white cloth is formed.
The mark was printed every 50 cm in a size of 2 cm in length and 2 cm in width. The printed matter was hot-pressed at 130 ° C. to dry and finish the printing, and a printing process (printing an invisible code) was performed. In this printed white material, the @ mark was almost invisible to the naked eye. The @ mark, which is an invisible code, is used for ultraviolet analysis (for example, flying
Ultraviolet scanning analysis with a spot scanning densitometer) and computer processing enabled @ mark to be clearly displayed on the display in all white fabrics. The home selection was repeated 5 times, but the effect (clearly printing the invisible code) was maintained. In this example, the fluorescent brightening ink-b prepared in the same manner as above except that 0.02% by weight of a brown disperse dye was further added to the fluorescent whitening ink was used. When processed in the same manner, the @ mark, which is a visually invisible code, was more difficult to visually recognize. Also, the @ mark can be similarly specified by the ultraviolet analysis. Furthermore, the resistance to washing was similar.

Comparative Example 1 An invisible code @ mark was printed every 50 cm in a size of 2 cm in length and 2 cm in width, except that the water-insoluble polymer coating in Example 1 was not formed at all. In this printed white material, the @ mark was almost invisible to the naked eye. The @ mark, which is an invisible code, is used for ultraviolet analysis (for example, flying spot,
Ultraviolet scanning analysis with a scanning densitometer), and by computer processing, @ mark was able to be displayed on the display to a certain extent on the display, but the unclear unreadable part There were many.

Example 2 A white cloth was manufactured by using a satin cloth having a width of 50 cm and a length of 30 m made of 100% polyester, subjected to refining and finishing. Only the part corresponding to the following invisible code forming part of this white cloth, the size of which is 5 mm larger in all surroundings (range 2.5 cm x 2.5 cm) and the terephthalate unit is 75
Mol%, isophthalate unit 20 mol%, other dibasic acid unit 5 mol% (here, 5-sodium sulfoisophthalate unit was used), trioxyethylene glycol unit 5 mol%, ethylene glycol unit 88 Mol%, other diol units 7 mol% (here,
(Neopentyl glycol unit was used) A finely dispersed aqueous dispersion of polyester from a copolyester is used to coat to a dry thickness of 3 μm and dried to form a water-insoluble polymer coating. Formed.
On the other hand, the terephthalate unit was 69 mol%, the isophthalate unit was 25 mol%, and the other dibasic acid unit was 6 mol% (here, 5-sodium sulfoisophthalate unit was used), and the trioxyethylene glycol unit 5 was used.
1. Colloidal gold at a ratio of 3.0% by weight to a polyester from a copolyester having mol%, 88 mol% of ethylene glycol units and 7 mol% of other diol units (here, neopentyl glycol units were used); 0
A fine particle having an average particle diameter of 0.3 μm was prepared from a fluorescent whitening agent containing a benzimidazole derivative at a weight ratio of 10% by weight. Was dispersed in water with 2% by weight of glycerin, 1% by weight of diethanolamine, and 10% by weight of sodium lignin sulfonate to prepare a colloidal gold ink. Using this gold colloid ink, an invisible code "UDM" mark was printed on the white cloth at intervals of 50 cm in a size of 2 cm in length and 2 cm in width, using an inkjet printer. This printed matter 13
It was hot pressed at 0 ° C., dried and printed, and then subjected to a printing process (printing an invisible code). The "UDM" mark of the white material subjected to the printing treatment was almost invisible to the naked eye. The "UDM" mark, which is an invisible code, is used for analysis of ultraviolet rays (for example, flying spots,
Scanning analysis such as UV scanning with a scanning densitometer) was performed, and by computer processing, "UDM" marks could be clearly displayed on the display at all parts of the white cloth. The home selection was repeated 5 times, but the effect (clearly printing the invisible code) was maintained.

Comparative Example 2 Invisible code "UD" was obtained in the same manner as in Example 2 except that the water-insoluble polymer coating was not formed at all.
The "M" mark was printed every 50 cm in a size of 2 cm in height and 2 cm in width. The "UDM" mark of the white material subjected to the printing treatment was almost invisible to the naked eye. The "UDM" mark, which is an invisible code, can be analyzed by UV (for example, scanning analysis such as UV scanning with a flying spot scanning densitometer), and processed by computer to produce "UDM".
The mark could be displayed on the display to a certain extent on the white fabric, but there were many areas where the mark was unclear and could not be reliably read.

Example 3 Using only 100% polyester spun yarn, a double knit fabric having a width of 80 cm and a length of 50 m was prepared and subjected to refining and finishing to produce a white fabric. Only the part corresponding to the following invisible code forming part of this white cloth, the size of which is 5 mm larger in the entire circumference (range 5.5 cm x 5.5 cm), and using a vinyl chloride emulsion, the dry thickness It was coated to a thickness of 7 μm and dried to form a water-insoluble polymer coating of vinyl chloride. On the other hand, 2.5 as gold
2. Glycerin, a fluorescent brightening agent of gold colloid at a ratio of 3% by weight and a benzimidazole derivative at a ratio of 3% by weight.
5% by weight, 1.5% by weight of diethanolamine and 10% by weight of sodium lignin sulfonate were added to prepare a gold-containing ink. Using the ink containing gold, an inkjet printer was used to perform an electronic encryption process on the white cloth, which is an invisible code by computer conversion.
The marks were printed at 50 cm intervals on a site having a size of 5 cm × 5 cm. The printed matter was hot-pressed at 130 ° C. to finish the printing. This printed white material is cut into a length of 50 cm, and at the end in the length direction @
A large number of 80 cm × 50 cm white fabrics having marks formed thereon were prepared. The @ mark, which is the printed invisible code, cannot be visually recognized at all, and is printed as the invisible code. Twenty sheets were prepared from a large number of 80 cm × 50 cm fabrics on which the invisible code was printed. The image of the same animal (Shepherd dog) photograph was printed on the 20 sheets of cloth with an invisible code by an inkjet printer using a disperse dye ink.
Directly printed, steamed, washed with water on almost the entire printed surface of the @ mark (invisible code) of 0 cm white fabric,
20 sheets of colored products were obtained. The animal photograph was very clearly visible, and the @ mark was completely invisible. Computer-processed by fluorescent analysis (for example, scanning gold spectrum analysis with a flying spot scanning densitometer) of @printed invisible code with gold-containing ink and colored (printed) animal photographs. By performing (inverse conversion of the above process), the invisible code @ mark appears on the display.
It was possible to display clearly on all 0 sheets. The home selection was repeated 5 times, but the effect (displaying the invisible code clearly) was maintained, and the sharpness of the animal photograph was also maintained.

Example 4 Using a cloth woven into a high-density thin woven fabric for marking with 100% polyester yarn, the entire surface of this cloth was coated with an emulsion of vinyl chloride to a dry thickness of 3 μm, After drying, a water-insoluble polymer coating of vinyl chloride was formed to obtain a coated fabric. The above cloth was dyed with yellow by dyeing to obtain a yellow plain cloth. On this yellow plain cloth, the symbol "U @ M" is printed with a dark blue polyester disperse dye in the center of each of a number of 3 cm x 8 cm rectangles with a size of 1 cm x 3 cm using a direct inkjet method. In addition, the ink used in Example 2 was further measured at a position 3 mm below the symbol "U @ M" formed in the central portion of the rectangle and having a size of 0.8 cm × 2.5 cm along the symbol. A gold-containing ink-y, which is an ink of the same formulation except that 3% by weight of a yellow disperse dye was added, was used to print (print) a computer-converted electronically encrypted signal (invisible code) by a direct inkjet method. The predetermined symbol before encryption was the symbol "200112UM", and the printed watermark code was completely unrecognizable by visual observation.
A 3 cm x 8 cm rectangle printed with the same number of the same "U @ M" symbols and electronically encrypted signals (watermark code) was cut, and a "festival" treatment was applied to the edges to mark the tags for clothes. Was produced. Watermark code "200112U
"M" was almost unrecognizable as an image as a color and was hardly recognized by the naked eye, and only a dark blue symbol as a marker and a yellow background color were recognized. Watermark code "20
"0112UM" and a dark blue symbol "U @ M" are printed on a fluorescence analysis (for example, flying spot.
By performing scanning gold spectrum analysis with a scanning densitometer) and performing computer processing (processing such as reverse conversion), all labeling tags are "2001
The watermark code of "2UM" could be clearly displayed on the display. The home selection was repeated 5 times, but the effect (displaying the watermark code clearly) was maintained.

[0023]

EFFECTS OF THE INVENTION According to the present invention, a recognizer, which is an invisible code and can be detected very easily, is formed on one or more thin leaves selected from cloth, artificial leather and leather for decoration. One or more thin-leaf materials selected from these fabrics, artificial leathers, and leathers, without impairing the color and the sharpness and hue of images and characters, and without causing depressions, diffusions, or depressions in these surface irregularities. It can be attached to made-up clothes and tag tags, and is useful for many purposes such as prevention of forgery, confirmation of ownership, origin, credibility, and recording of bibliographic items such as orders. It turned out to be

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G06K 1/12 G06K 19/00 E 19/06 B41J 3/04 101Z (72) Inventor Hiroyasu Ichikawa Kyoto Kyoto 212 Kuromon-dori, Ikegami-ru, textile shop, Nakamon-ku, Yokohama-shi Upepo & Maji Stock Association In-house F-term (reference) 2C056 EA24 FB01 2H086 BA01 BA15 BA17 BA22 BA36 BA55 2H113 AA06 BB06 BB19 CA39 FA29 4J039 EA21 EA48 FA03 FA035A13 GA24 GA24 BA03 BB03 BC00

Claims (5)

[Claims] 1. An ink containing a detection body that can be detected only by a method other than visual recognition, and at least one kind selected from cloth, artificial leather, and leather in which at least a fixing portion is coated with a water-insoluble polymer compound. An invisible code-fixed thin leaf body, characterized in that it is fixed to a covering surface of the thin leaflet to form an invisible code and is labeled with the invisible code. 2. The coloring of an image such as a predetermined color / image / character / photo different from the invisible code is formed.
The invisible cord-fixed thin leaf body described in 1. 3. The invisible code fixed thin leaf body according to claim 1, wherein the invisible code is an electronically encrypted watermark code. 4. The invisible code-fixed thin sheet according to claim 1, 2 or 3, wherein the invisible code-fixed thin sheet is a tag for labeling. 5. The ink-jet printing method according to claim 1, wherein the fixation of the invisible code and / or the coloring of a predetermined color, image, character, photograph or the like different from the invisible code is performed by an inkjet printing method. Invisible cord fixed thin leaf.