KR20110132444A - Printed matter providing optically readable information - Google Patents

Abstract

[Problem] To provide a print that provides optically readable information, has excellent durability against wind, rain and light, and can be manufactured more simply and at low cost. In addition, it is to provide a print set including a plurality of the above-described prints, and a method for manufacturing the print set.
[Solution] Non-woven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and thickness of 0.020 to 0.400 mm, and optically readable information formed by printing ultraviolet curable ink on the base material using an inkjet printing method. Printout featured.

Description

PRINTED MATTER PROVIDING OPTICALLY READABLE INFORMATION}

The present invention is suitable for use as a bib worn by a marathon racer and includes non-woven fabric base material and optically readable information, and optionally additional visually on this base material. It relates to printed matter containing recognizable information.

Public marathon and skiing events are very popular in recent years due to fitness booms, etc. Many citizens now participate in this type of event. At such events, participants will be provided a clear bib which clearly indicates the event's name and competitor's number, which competitors wear on the day of the event, but since the competitor's number varies from one bib to another, the bib is already printed. It is generally necessary to print each competitor's number on the hand by hand, resulting in problems such as increased workload and cost. Moreover, in order to facilitate rapid response when competitors are injured or have an accident during the event, modern participants are required to register their blood type and medical history prior to the event. However, due to the growing concern about the way personal information is handled, this type of information is placed on each competitor's bib in such a way that it can be retrieved quickly without being leaked to others when information is required. Inclusion is considered an ideal method, but the means to do so have not yet been devised.

It is also desirable to provide braille on bibs for visually impaired participants, but techniques have not yet been developed to easily and quickly generate bibs with tactilely recognizable information such as braille.

Inkjet printing, on the other hand, is a technique of forming an image by firing ink onto an object based on digital data, and has become widely used for publications, posters, and the like because it has advantages such as high speed, multicolor functionality, and low noise. Forming an image by inkjet printing does not require the production of block copies required for offset printing, but requires thermal fixation processing such as the electrophotographic method used by copiers and laser printers. This means that the ink jet printer has the advantage of having a simple mechanism. Moreover, conventional offset printing requires that information common to all substrates be printed first and different information per substrate then printed one at a time, while inkjet printing differs from substrate to substrate and the information common to all substrates. The advantage is that both information can be printed at the same time.

Although paper is commonly used as a base material for prints in which images are formed by inkjet printing, if the prints are used under relatively poor conditions, for example when the prints are used outdoors, they are resistant to wind, rain and light. It is necessary to use the base material. Lightweight and flexible nonwoven fabrics have been proposed as base materials of this type (see, for example, Patent Document 1).

However, for providing optically readable information in the form of two-dimensional barcodes, such as QR codes, Data Matrix, PDF 417, Maxi Code or VeriCode, By this means, it is known that it is possible to distinguish one printed material from another printed material by encoding information for which reading by optical means is desirable.

Patent Literature 2 uses a magnetic ink to mark an embroidered or woven label having a brand name or logo, such as text, graphics or symbols, to distinguish a genuine brand from a counterfeit brand. However, it does not disclose a print comprising optically readable information formed by printing onto a nonwoven fabric base material using ink jet printing.

Patent document 3 discloses a basic process comprising the following steps in inkjet dyeing using an ink having an ink for recording information such as text, an image or an identification mark on a cloth as a main component: (1) Subjecting to migration prevention. (2) dyeing the fabric by using an inkjet printer or the like such that ink having a dye as a main component penetrates or disperses into the fibers of the fabric on which the temporary image is formed. (3) dyeing by allowing the dye forming the temporary image to penetrate or disperse into the fabric of the fabric through the use of heat treatment or the like. (4) removing excess dye by reduction cleaning or the like, which aims to solve various problems inherent in the heat treatment of step (3). Specifically, Patent Document 3 forms an image such as text, an image or an identification mark on a woven, knitted or nonwoven fabric A using an ink having a dye as a main component, and at least the woven, knitted or nonwoven on which the image is formed. Dyeing a woven, knitted, or nonwoven fabric or paper (B) on the side of the fabric (A), and then the dye forming the temporary image described above penetrates or diffuses into the fibers constituting the woven, knitted or nonwoven fabric (A). Disclosed is a method for producing an information cloth, characterized in that various problems inherent to the heat treatment in step (3) are solved by performing a heat treatment to make it work. However, printing using an ink having a dye as a main component used in the information cloth manufacturing method of Patent Document 3 requires a plurality of complicated steps as described above involving high cost and a number of technical drawbacks. In addition, the dye-based ink method in which waste liquid is discharged due to the cleaning step following the heat treatment is disadvantageous in terms of environmental protection.

Allows simple and efficient printing of information common to all bibs in events such as the public marathon, for example the name of the event, as well as other information per bib, for example, the number of competitors, and personal information about competitors on a single bib The technology to make it has not been developed yet.

[Patent Document 1] Japanese Patent Application Publication No. 08-187933 [Patent Document 2] Japanese Patent Application Publication No. 2004-334144 [Patent Document 3] Japanese Patent Application Publication No. 05-247838

It is an object of the present invention that different information per print is printed in any optically readable manner, the printed optically readable information can be read with good accuracy, has good weather resistance, can be produced simply and at low cost. To provide printed material.

Another object of the present invention is to provide a print having tactilely recognizable information common to each print, and optically readable information which is different for each print.

It is a further object of the present invention to provide a print having tactilely recognizable information common to each print, different optically readable information per print, and different tactile recognizable information per print.

It is another object of the present invention to provide a method which enables the production of the above-mentioned prints simply and at low cost.

The inventors of the present invention make it possible to print optically readable information extremely clearly by printing optically readable information on a specific nonwoven fabric base material by inkjet printing using ultraviolet curable inks, whereby optical reading The present invention has been completed based on the finding that it can improve the accuracy and solve the above-mentioned problems.

Specifically, the present invention is formed by printing a UV curable ink on a nonwoven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and a thickness of 0.020 to 0.400 mm, and an inkjet printing method. It provides a printed matter containing the optically readable information.

The present invention also provides a substrate set comprising a plurality of the above-described substrates, wherein each of the substrates in the set is optically readable information representing information different from other substrates in the set, and visual recognition common to all the substrates in the set. Include possible information.

A method for manufacturing a substrate set consisting of a plurality of substrates, each substrate printed with optically readable information representing information different from the information on other substrates in the set,

Inputting one of the different types of information described above,

Converting the above-described input information into a signal for generating optically readable information corresponding to the input information,

Sending the aforementioned signal to the printing means, and

Based on the signal, printing the above optically readable information with an ultraviolet curable ink using an inkjet printing method on a nonwoven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and a thickness of 0.020 to 0.400 mm It includes.

According to the present invention, it is possible to provide a printed material containing optically readable information, having excellent durability against wind, rain and light, and which can be produced more simply and at low cost. In particular, by combining a nonwoven fabric and an ultraviolet curable ink, it is possible to provide extremely clear optically readable information on a printed matter, whereby errors occur when reading optically readable information using optical means. Can be prevented. Furthermore, according to the present invention, it is possible to provide a printed matter which is preferably printed after encoding the information which can be read by the optical means, thus providing a convenient printed matter containing information essential for the management of personal information or the like. It is possible. It is also possible to manufacture a set of substrates comprising a plurality of substrates without the need for simple and complicated processes, wherein each of the substrates in the set is optically readable information representing different information than the other substrates in the set, and Include visually recognizable information common to all printed material in the book. In addition, from the viewpoint of waste liquid treatment, the use of ultraviolet curable inks has less environmental impact than the method involving dye-based inks and the like.

<Figure 1>
1 is a diagram showing an embodiment of a bib 1 of the present invention.
<FIG. 2>
FIG. 2 shows an example of a database for storing participants' numbers (personal identification information). FIG.
3,
3 is this. children. Tyvek ™ nonwoven fabric (product no. 1056D) manufactured by EI DuPont and Yi. children. Magnified photo of barcode and QR code ™ on a bib made using ultraviolet ink (SD108) for inkjet printers made by DuPont.
<Figure 4>
4 is this. children. Tyvek ™ nonwoven fabrics (product number 1056D) manufactured by DuPont and UV curable inks, not commercially available inks (Inks for Pixus 455i printers manufactured by Canon, Inc.); Magnified image of Barcode and QR Code ™ on Bib, manufactured using BCI-24 Color and BCI-24 Black).

In the present invention, a nonwoven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and a thickness of 0.020 to 0.400 mm is used as the base material on which printing is performed. Here, the "base weight" (g / m 2) of the nonwoven fabric can be measured according to JIS-L1096. In addition, the "thickness" (mm) of the nonwoven fabric can be measured according to JIS-L1096.

Nonwoven fabrics having the aforementioned properties used in the present invention may be hydrophilic fibers such as cellulose or silk, hydrophobic fibers such as polyolefins (polyethylene, polypropylene, etc.) or mixtures thereof, and conventional methods with or without binders. It can be prepared using. Of course, preference is given to using nonwoven fabrics made using polyethylene fibers.

The basis weight of the nonwoven fabric used in the present invention is preferably 30.0 to 100.0 g / m 2, more preferably 30.0 to 80.0 g / m 2, even more preferably 35.0 to 70.0 g / m 2, and most preferably 38.0 to 60.0 g / m 2. Here, the basis weight means the average mass (g / m 2) per m 2, and take three test pieces made in accordance with JIS-L1096 (6. Test Method, 6.3) and having dimensions of 20 cm × 20 cm, It is obtained by measuring the absolute dry mass (g) and determining the corrected mass according to the specified equation.

The thickness of the nonwoven fabric used herein is preferably 0.050 to 0.350 mm, more preferably 0.060 to 0.300 mm, and most preferably 0.070 to 0.250 mm. Thickness (mm) is measured according to the measuring method specified in JIS-L1096 using a thickness tester in the five parts of the produced sample under the initial load for a certain duration, in which an average of five values is used.

The tear strength of the nonwoven fabric used in the present invention is preferably 3.0 to 35.0 N, more preferably 4.0 to 30.0 N, and most preferably 4.5 to 25.0 N. For example, when using a print as a bib or the like, even if the bib is attached using a clip or the like, it should not serve as a starting point of tearing, and therefore it is necessary for the nonwoven fabric to have a high tear strength. Here, the "tear strength" (N) of the nonwoven fabric can be measured according to JIS-L8116.

The tensile strength of the nonwoven fabric used in the present invention is preferably 30 N / 5 cm to 1000 N / 5 cm, more preferably 40 N / 5 cm to 500 N / 5 cm, and most preferably 70 N /. 5 cm to 350 N / 5 cm. Here, the "tear strength" (N / 5cm) of the nonwoven fabric can be measured according to JIS-L1096.

The bursting strength of the nonwoven fabric used in the present invention is preferably 100 to 2500 kPa, more preferably 200 to 1500 kPa, and most preferably 300-900 kPa. The burst strength of the nonwoven fabric can be measured according to JIS-P8112.

In the present invention, optically readable information is printed on the nonwoven fabric base material described above by inkjet printing using an ultraviolet curable ink. The "ultraviolet curable ink" used in the present invention may be of any type as long as the ink can be cured by irradiation with ultraviolet radiation in the form of actinic radiation. For example, it is possible to use the ultraviolet curable ink disclosed in Unexamined-Japanese-Patent No. 2008-280427, 2007-231082, 2008-81516, and 2008-223014. Acrylic ester based ultraviolet curable inks are particularly preferred for forming clear optically readable information. Inks having an acrylic ester content of approximately 30 to 45 mass% are particularly preferred as acrylic ester based ultraviolet curable inks. For example, this. children. Although DuPont's "SD-108" or "SD-111" UV inks can be used, the inks used in the present invention are not limited to these.

The ultraviolet curable ink composition used for this invention can contain a polymerization initiator. The polymerization initiator may be a known one, and it is particularly preferable to use a radical polymerization initiator. The polymerization initiator used in the ultraviolet curable ink composition of the present invention is a compound that generates a polymerization-initiating species by absorbing ultraviolet radiation in the form of external energy.

Preferred radical polymerization initiators which can be used in the present invention include aromatic ketones, acyl phosphine compounds, aromatic onium salts, organic peroxides, thio compounds, hexaaryl biimidazole compounds, keto-oxime ester compounds, borate compounds, azinium compounds, metals Rosene compounds, active ester compounds, compounds having a carbon-halogen bond, and alkylamine compounds.

In the present invention, the polymerization initiator may be used alone or as a combination of two or more types thereof. Such may be used at a concentration of preferably 0.01 to 30 parts by mass, more preferably 0.1 to 20 parts by mass, and still more preferably 0.5 to 10 parts by mass with respect to 100 parts by mass of the ultraviolet curable ink composition.

The radically polymerizable compound contained in the ultraviolet curable ink composition of the present invention is a compound having a radically polymerizable ethylenically unsaturated bond, and any monomer, oligomer or as long as the compound has at least one radically polymerizable ethylenically unsaturated bond in the molecule. It may be a polymer. In addition, radically polymerizable compounds may be used alone or as a combination of two or more types thereof.

Examples of the polymerizable compound having a radical polymerizable ethylenically unsaturated bond include unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid or maleic acid, or salts thereof and ethylene-based compounds. Anhydrides with unsaturated groups, and radically polymerizable compounds such as acrylonitrile, styrene, unsaturated polyesters, unsaturated polyethers, unsaturated polyamides, and unsaturated urethanes.

Specifically, acrylic acid derivatives such as 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, butoxyethyl acrylate, carbitol acrylate, cyclohexyl acrylate, tetrahydrofurfuryl acrylate, benzyl acrylate , Bis (4-acryloxypolyethoxyphenyl) propane, neopentylglycol diacrylate, di (ethylene glycol) diacrylate, tri (ethylene glycol) diacrylate, tetra (ethylene glycol) diacrylate, poly ( Ethylene glycol) diacrylate, poly (propylene glycol) diacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol tetraacrylate, trimethylolpropane triacrylate, tetramethylolmethane Tetraacrylate, Oligoester A Relates, N-methylol acrylamide, diacetone acrylamide, and epoxy acrylates, methacrylic acid derivatives such as methyl methacrylate, n-butyl methacrylate, 2-ethylhexyl methacrylate, lauryl Methacrylate, allyl methacrylate, glycidyl methacrylate, benzyl methacrylate, dimethyl (aminoethyl) methacrylate, 1,6-hexanediol dimethacrylate, ethylene glycol dimethacrylate, Tri (ethylene glycol) dimethacrylate, poly (ethylene glycol) dimethacrylate, poly (propylene glycol) dimethacrylate, trimethylolethane trimethacrylate, trimethylolpropane trimethacrylate, and 2 , 2-bis (4-methacryloxypolyethoxyphenyl) propane, and allyl compounds such as allyl glycidyl ether, diallyl phthalate and It is possible to use triallyl trimellitate. Particular preference is given to using acrylic ester compounds.

The total content of the radically polymerizable compound in the ultraviolet curable ink composition used in the present invention is preferably 1 to 97 mass%, more preferably 30 to 95 mass%, and most preferably the total mass of the ultraviolet curable ink composition. Is 30 to 45 mass%.

It is possible to incorporate colorants when attempting to form colored images using the ultraviolet curable ink composition used in the present invention. The colorant is not particularly limited and it is possible to select appropriate known colorants (pigments, dyes) according to the intended use of the ink composition. Pigments are preferred in view of weatherability.

The pigment that can be used in the ultraviolet curable ink composition used in the present invention is not particularly limited, but it is possible to use, for example, an organic or inorganic pigment having the following numbers and listed in a color index.

Pigment Red Nos. 3, 5, 19, 22, 31, 38, 43, 48: 1, 48: 2, 48: 3, 48: 4 as red or magenta pigments, depending on the intended use of the ink , 48: 5, 49: 1, 53: 1, 57: 1, 57: 2, 58: 4, 63: 1, 81, 81: 1, 81: 2, 81: 3, 81: 4, 88, 104 , 108, 112, 122, 123, 144, 146, 149, 166, 168, 169, 170, 177, 178, 179, 184, 185, 208, 216, 226 and 257, Pigment Violet No. 3 , 19, 23, 29, 30, 37, 50 and 88, and Pigment Orange number 13, 16, 20 and 36, Pigment Blue number 1, 15, 15 as a blue or cyan pigment : 1, 15: 2, 15: 3, 15: 4, 15: 6, 16, 17-1, 22, 27, 28, 29, 36 and 60, Pigment Green number 7, as green pigment 26, 36 and 50, Pigment Yellow numbers 1, 3, 12, 13, 14, 17, 34, 35, 37, 55, 74, 81, 83, 93, 94, 95, 97 as yellow pigments Pigment Black as black pigment, 108, 109, 110, 137, 138, 139, 153, 154, 155, 157, 166, 167, 168, 180, 185 and 193 No. 7, 28 and 26, and as a white pigment, it is possible to use a white pigment (Pigment White) No. 6, 18 and 21.

It is possible to add sensitizing dyes to the ultraviolet curable ink compositions used in the present invention to promote decomposition of the polymerization initiator by ultraviolet radiation. A sensitizing dye enters an electronically excited state by absorbing ultraviolet radiation, which is a specific form of actinic radiation. Electronically excited sensitizing dyes come into contact with the polymerization initiator to produce effects such as electron transfer, energy transfer and heat generation. The polymerization initiator thereby causes a chemical change, i.e., decomposes to form radicals, acids or bases.

The sensitizing dye should be a compound selected according to the wavelength of ultraviolet radiation which generates the starting species in the polymerization initiator used in the UV curable ink composition, but by considering that this sensitizing dye is used for the curing reaction of a conventional UV curable ink composition. As examples of preferred sensitizing dyes, it is possible to mention sensitizing dyes belonging to the following compound types and having absorption wavelengths of 350 to 450 nm.

Specifically, polycyclic aromatic compounds (eg pyrene, perylene, triphenylene), xanthene compounds (eg fluorescein, eosin, erythrosine, rhodamine B, rose bengal), cyanine compounds (E.g., thiacarbocyanine, oxacarbocyanine), merocyanine compounds (e.g. merocyanine, carbomerocyanine), thiazine compounds (e.g. thionine, methylene blue, Toluidine blue), acridine compound (e.g. acridine orange, chloroflavin, acriflavin), anthraquinone compound (e.g. anthraquinone), squalar compound (e.g., Squalane), coumarin compounds (for example, 7-diethylamino-4-methyl coumarin) and the like can be used.

Since the ultraviolet curable ink composition used in the present invention is of the ultraviolet curable type, it is preferable not to incorporate a solvent so that the reaction occurs immediately after the ink composition impinges on the base material so that the ink is cured. However, it is possible to incorporate this solvent as long as the prescribed solvent does not affect the curing rate or the like of the ink composition. Organic solvents or water can be used as the solvent. Specifically, the organic solvent improves the adhesion of the ink composition to the recording medium (support such as nonwoven cloth or paper), and thus can be added.

The amount of the organic solvent is, for example, 0.1 to 5% by mass, and preferably 0.1 to 3% by mass of the total ultraviolet curable ink composition used in the present invention.

Moreover, it is possible to add another well-known compound to the ultraviolet curable ink composition used for this invention as needed. For example, surfactants, leveling additives, matting agents, as well as polyester resins, polyurethane resins, vinyl resins, acrylic resins, rubber resins and waxes for adjusting film properties are appropriately selected. It is possible to add by.

"Optically readable information" printed using ultraviolet curable inks cannot be decoded (decoded) by one-, two- or three-dimensionally encoded information, for example by humans, but with barcodes, Refers to information that can be decoded (decoded) by a dedicated reader such as QR code, data matrix, PDF417, maxi code or vericode. In addition, examples of specific information related to optically readable information and stored in the database include the user's first name, last name, age, address, gender, telephone number (landline and mobile phone), email address, emergency Contact information, nationality, blood type, medical history, clinical history and prescribed first aid, sporting event or race name, and cloakroom number for belongings handed over by the participant during the event.

In the present invention, in addition to optically readable information printed using ultraviolet curable inks, information that can be decoded by humans, ie visually recognizable, can also be printed on the same nonwoven fabric base material. It does not need to be printed by inkjet printing, but printing by inkjet printing using ultraviolet curable inks is preferred. This type of visually recognizable information is not particularly limited, but is preferably not information that should not be visually recognizable in terms of privacy, the name of the event or race, the logo of the event or race, the identification of the printed user Number, print portrait of the user, and the like.

In the present invention, it is also possible to print tactilely recognizable information on a nonwoven fabric base material on which optically readable information and optionally visually recognizable information are printed. This tactilely recognizable information need not be printed by ink jet printing, but it is preferable to print a three-dimensional pattern by ink jet printing using ultraviolet curable inks. This type of tactilely recognizable information can be braille, for example.

The type of printed matter of the present invention is not particularly limited, but is preferably a personal identification mark. Personal identification marks may be, but are not limited to, bibs for events or races, or admission tickets such as amusement parks. Bibs are particularly desirable personal identification marks.

The print set of the present invention should include a plurality of, i.e., two or more prints. In addition, the print sets of the present invention do not necessarily have to be printed at the same time or on the same day, but should be two or more prints related to the same or similar event or race. The print set of the present invention should include optically readable information in which each print in the set is different from other prints in the set, and visually recognizable information common to all prints in the set, It may include optically readable information common to two or more of them, and may include visually recognizable information representing information different from other prints in the set.

For example, when used as a bib for a marathon or the like, the name and logo of the marathon are visually recognized as information common to all the prints in the print set, while information such as personal information, which is preferably optically readable information. It is possible to recognize as optically readable information representing different information between prints in the set.

A method for making a bib, which is an example of an embodiment of a print of the present invention, will now be described. 1 is a diagram showing an embodiment of the bib 1 of the present invention. Bibs (1) are for marathon, and the number of bibs produced is at least the number of marathon participants.

As shown in FIG. 1, the name (2), bib number (3), barcode (4) and QR code (5) of the marathon are printed on the bib (1). The name (2) of the marathon is common to all bibs, while the bib number (3), barcode (4) and QR code (5) are different for each bib.

Bar code 4 and QR code 5 are associated with personal information stored in a database such as the bib wearer's address, name, age, blood type and medical history, and this personal information for the bib wearer may be read by a barcode reader. Can be.

First, data for producing a barcode is generated. Personal information, such as the address, name, age, blood type and medical history of each participant, obtained from the items entered in the entry form, is created, which is then stored by means of storage. 2, the participant number (personal identification information) as shown in FIG.

Next, a bar code signal for printing a bar code (optically readable information) corresponding to the participant number is generated for each participant number.

Subsequently, a print job is performed. Using software such as Adobe Illustrator ™, a signal for printing the name of a marathon (2), a signal for printing a specific participant's bib number (3), and a participant number for a particular participant From the signals for printing the barcode 4 and the QR code 5 (personal identification information), digital data combined for each participant (each bib) is created.

This data is then sent to an inkjet printer, where the name (2), bib number (3), barcode (4) and QR code (5) of the marathon are described using the aforementioned UV curable ink on the surface of the nonwoven fabric. Is printed on.

Instead of, or in addition to, the barcode 4 and / or the QR code 5, it is possible to form braille information with ultraviolet curable ink on a nonwoven fabric.

Example

The present invention will now be described in more detail through the use of examples, but is in no way limited by these examples.

Example  One

Bibs for the marathon were made using the following procedure.

this. children. Tyvek ™ nonwoven fabric (product number 1056D) manufactured by DuPont (basis weight: 52.5 to 57.5 g / m 2, thickness: 0.110 to 0.230 mm, tear strength: 4.8 to 9.8 N / 5 cm) to a size of 245 × 280 mm Cut. When making the final bib (200 × 40 mm) in an automatic cutter attached to the printer, a register mark portion (used to determine where the block copy is to be cut to the finished size or to register multicolor printing Four corners of the block copy, positions equidistant from the left and right, and markers representing the top and bottom). The name of the marathon, the racer's number, the photo, and the name (in alphabetic notation) were collected as visually recognizable information to be put in the bib. In addition, the racer's name (Chinese character), surname, age, address, gender, telephone number (terrestrial communication line and cell phone), emergency contact, nationality, blood type, participating race, medical history, clinical history, prescribed first aid, and event The cloakroom number for the belongings passed in during that time was collected as virtual information to be put as optically readable information.

The database was created by associating this virtual information with the personally identifiable information of the participant, and it was possible to read the information from the database by using a barcode reader that reads a barcode printed on a bib or QR code ™.

Digital data combining them into a single image was created for each racer using Adobe ™ Illustrator ™. Roland D.C. Roland D.C.Versa UV LEC-300, and DuPont E. containing approximately 30-45 mass% of acrylic esters. Using I.'s acrylic ester-based UV-curable ink (SD-108) for inkjet printers, the aforementioned digital data was printed on a nonwoven fabric to obtain bibs tailored for each racer.

An enlarged photograph of the barcode and QR code ™ portion of one of the acquired bibs is shown in FIG. 3. As shown in FIG. 3, the edges of the barcode and QR code ™ on the bib were sharp and free of blurring, and an image was formed that could be easily detected by the optical device. In addition, the color tone and luminance were particularly excellent.

Example 2

this. children. Tyvek ™ nonwoven fabric (product number 1443R) manufactured by DuPont (Basic weight: 41.0 to 45.0 g / m 2, thickness: 0.080 to 0.200 mm, tear strength: 9.8 to 22.5 N / 5 cm) was used as the nonwoven fabric. The bib was obtained in the same manner as in Example 1. In the same manner as in Example 1, the edges of the barcode and QR code ™ were clear and blurry, and an image was formed that could be easily detected by the optical device. In addition, the color tone and luminance were excellent.

Comparative example  One

this. children. Tyvek ™ nonwoven fabric (product number 1056D) made by DuPont was cut to a size of 245 × 280 mm. Using commercially available inkjet printers (Fixus 455i manufactured by Canon Inc.) and non-ultraviolet curable inks (BCI-24 color and BCI-24 black), the same digital data as in Example 1 was prepared on a nonwoven fabric. Printed on to obtain a bib customized for each racer.

An enlarged photograph of the barcode and QR code ™ portion of one of the acquired bibs is shown in FIG. 4. As shown in FIG. 4, the edges of the barcode and QR code ™ are blurry, some bars are indistinguishable from adjacent bars, and are not detectable by the optics. In addition, the hue and brightness were clearly inferior to the bibs obtained in Examples 1 and 2.

Claims (8)

Non-woven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and a thickness of 0.020 to 0.400 mm, and
Optically readable information formed by printing an ultraviolet curable ink on this base material using an inkjet printing method
Imprint comprising a. The substrate of claim 1, wherein the nonwoven fabric base material has a tear strength of 3.0 to 35.0 N. 3. The print of claim 1 or 2, further comprising visually recognizable information formed on the base material by printing with ultraviolet curable ink using an inkjet printing method. The print of claim 1, further comprising tactilely recognizable information formed on the base material by printing with an ultraviolet curable ink using an inkjet printing method. The printed matter according to any one of claims 1 to 4, which is a personal identification mark. 6. The print of claim 1, wherein the personal identification mark is a bib. As a set of substrates,
Claims 1 to 6 comprising a plurality of printed matters according to any one of claims,
Each print set in the set includes optically readable information representing different information than the other prints in the set, and visually recognizable information common to all prints in the set. A method for manufacturing a substrate set consisting of a plurality of substrates, on which each substrate is printed optically readable information representing information different from the information on other substrates in the set,
Inputting one of different types of information,
Converting the input information into a signal for generating optically readable information corresponding to the input information,
Sending the signal to a printing means, and
Based on the signal, printing the optically readable information with ultraviolet curable ink using an inkjet printing method on a nonwoven fabric base material having a basis weight of 20.0 to 120.0 g / m 2 and a thickness of 0.020 to 0.400 mm. How to include.

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