WO2008026749A1 - Contactless rewritable recording medium and ic tag using same - Google Patents

Abstract

A contactless rewritable recording medium in/from which information can be recorded/erased by a laser beam. The recording medium has a support (1), a reversible thermosensitive coloring layer (2) formed on the support (1), and a laminate material (6 and 9) provided on the reversible thermosensitive coloring layer. A contactless rewritable recording medium having a transmittance of the laminate material to a laser beam of 80% or more. A rewrite thermal label (15) having an adhesive layer (4) on the opposite surface of the support to the side on which the laminate material is formed of the recording medium. A contactless IC tag (20) with arewrite thermal label produced such that the adhesive layer of the label is so joined as to face an IC tag (10) from/in which invisible information can be read/written. The rewrite durability (heat destruction resistance) can be drastically improved while maintaining the performance of write/erase repeated by using a laser beam, the adhesion to the printing ink is improved to impart preferable printability, and the image storability can be improved by the solvent resistance and the light resistance.

Description

 Specification

Non-contact type rewritable recording medium, IC tag using it

擺 field

 The present invention relates to a shelf rewritable medium, a rewrite thermal label using the same, a smoke IC tag with a rewritable thermal label, and a rewritable rewrite. More specifically, the present invention remarkably improves the rewriting durability (metabolism ft) while repetitively erasing using a laser beam, and is suitable for printing. A rewritable word that can improve the image storage life in terms of light resistance, and can automatically perform writing and / or erasure of visible information in the insect state using laser light without human intervention. Media, use it, 誦 言 言 Rewritable 歸 label (hereinafter referred to as `` Rewrite Thermal Label ''), with Rewrite Thermal Norrabe Nore ^^ Smoke IC tag, using this IC tag, For both invisible and visible information, this is a record rewrite that automatically erases or writes sickle in an insect state; Background

 Labels that are currently used in the management of goods, for example, labels for shells in plastic containers (tray, boxes) that transport food, shell labels for cardboard, etc. Logistics labels, etc., were mainly made of heat sensitive materials (such as direct thermano) used for surface appreciation.

 This heat-sensitive wood-based material is provided with a support, which is divided into an electrochromic, usually colorless dye, a pond dye precursor and an electron-accepting developer. By heating with, for example, the dye precursor and developer, the image power S can be obtained. In general, when such a thermosensitive material forms an image, it is impossible to erase that portion and return it to the state before forming the resurface image.

Until now, in the label used for tin self-management, such a heat sensitive material is mainly used as a surface gift, and using a smoke-free thermal printer, the address, sender, product name, Information such as quantity, weight, date of manufacture, expiration date, fixed number, lot number, etc. Or, they were printed with a no-coding code and affixed to the adherend. When the role as a label ended, it took a lot of time and effort to peel off the label manually in order to reuse the container and cardboard as adherends. In addition, the adherend from which the label has been peeled off is re-applied with another label attached again.

 In this way, every time the adherend is repeatedly used, the label is peeled off and attached. For this reason, rewrite thermal labels that can be repeatedly recorded and erased with the label attached to the adherend without being peeled off from the adherend are attracting attention. 'Visible with 14® colorant feeling ^ ¾ ^ 1'! ^^. ■ Smoke reversible 'with erasure means!

 By the way, when the laser beam is used to write and Z or erase the visible word that can be erased repeatedly, the laser beam that is repeatedly illuminated causes the surface of the medium to be thermally destroyed. There was a problem. By using a light-absorbing talent, the destruction has not been able to be reduced. In addition, the fixed information ^ color color is printed in the words Β & ΰ ^ of, and when printing with ^, the adhesion between the printing ink and the heat sensitive word ^ i (the adhesion (4) is poor and printing cannot be performed). There is also a problem that there is

 [Reference 1] Japanese Unexamined Patent Publication No. 2003-118238

 [Document 2] JP 2002-215038 A

 Shimabi 3] Japanese Patent Laid-Open No. 2000-6271

 Yoon Document 4] Japanese Unexamined Patent Publication No. 2000-347569

 [Reference 5] Japanese Patent Laid-Open No. 2004-94510

 [Reference 6] Japanese Patent Application Laid-Open No. 2004-102432 Disclosure of Invention

Under these circumstances, the present writer remarkably improved the rewritability (metabolism 14) while performing the erasing performance that is repeatedly performed using laser light. It is possible to improve the image adhesion and improve the image storage stability by improving the adhesion and improving the image storage stability. It was made for the purpose of applying to rewritable media, Rxn m body labels, or smoke I c tags that can be automatically used in a delicate state without using human hands. Is. As a result of intensive research for the purpose of selfishness, the present inventors have reversibly obtained a laminate material having a laser rate higher than a certain value by reversibly. It is possible to rewrite without lowering ίΒ ^ ϋ ^, and to find that it can give the amount of heat necessary to start and erase feii, which is the lower layer, and the visual information of the media We have found that it is better to use a laminate material that has a visible light leakage rate of a certain value or more, considering the visibility and bar code readability. In addition, from the light absorption characteristics of the laminating material, the film surface satisfying the respective ratios of the ftlf self is obtained by using a polyester resin film or a vinyl resin film as a film. It was found that ff skin breakdown can be suppressed.

 Furthermore, by providing the ink receiving as on one side of the laminate material or rigidly, it is possible to obtain a good adhesion even if the printing ink cannot be printed due to poor adhesion with the conventional feeling, and the laminate material. By stacking layers, it contributes to protection from external factors such as light resistance, which was difficult with conventional media, and dramatically improves the image storage stability of fi® media. I found.

 In addition, it is possible to obtain a rewritable thermal label by providing an adhesive layer on the surface of the base opposite to the side where the laminating material of the self recording medium is laminated. By attaching an IC tag that can be read and written † f¾ with a broom, both the invisible information of the IC tag and the visible information expressed by the laser beam on the surface can be detected by a rewriter writer. We have found that it is possible to obtain IC Tadaka S with a rewrite thermal label that can automatically erase or write intelligence in the state.

 The present invention has been made on the basis of the knowledge gained.

 That is, the present invention

 [1] Reversible ¾ ^ Ji is provided on the support surface, and laminate material is laminated on the reversible ', which can be written and erased by laser light ^^ Smoke rewriteable | gfS «body, tirff self-laminate ^^ Smoke book with a laser rate of 80% or more of the material.

 [2] In the above [1], the visible leakage rate of the laminate material is 80% or more.

[3] Reversible light absorption by J1 In the above [1] or [2], which is provided with a light-absorbing crane with light-absorbing characteristics,

 [4] The above-mentioned laminate material is a base film provided with an agent layer, and the glass fiber of the base material FNOREM is 60 ° C or higher, and has a strength and melting point of 150 ° C or higher. [1] ~ [3] Any one of the clauses above, the bell translation and rewriteable medium.

 [5] The above-mentioned [1] to [4], in which the laminate material is an adhesive film provided on a coagulated film, and the strength film is a polyester resin film or a vinyl resin film. ] In the paragraph, or in the first paragraph, in the paragraph 1

 [6] The wavelength of the laser beam is 700 to 140 Onm, and any one of the above items [1] to [5] is a rewritable medium of f

 [7] Items [1] to [6] above, where an ink receptacle a is provided on at least one side of the film of laminate material! /, In one or two paragraphs, the smoke leakage rewriteable word medium,

 [8] The above-mentioned items [1] to [7], which have a printed layer on the surface of an ink receiving layer provided on the film of the laminating material or on the film of the gift, ^ Smoke rewritable enclosure,

 [9] Reversible! ¾ «¾ ^ Jf or above [1! ~ [6] paragraph, miscellaneous or 纖 shelf smoke rewritable crane medium,

 [10] The above-mentioned items [1] to [: 9] are shifted or the fiber rewritable crane medium described in item 1 is coated on the surface of the supporting book opposite to the side on which the laminate material is laminated. Relite thermano la la benore, whose glue is to have

 [11] In the above item [10], paste the ¾fe smoky rewritable key label so that it faces the I c tag that can read and write lt that is invisible with the surface of the glaze layer. Rewrite thermanole label with ^^ smoke IC tag, and

 [12] The fiber IC tag with the rewritable thermal label as described in [11] above, and a writer “Z writer in the middle of transporting the invisible information of each IC tag and the visible light recorded on the surface by laser light. 'For both of lf¾, rewriting the wording that is supposed to be repeated and erased or written automatically in the bug state.

# ^. Brief Description of Drawings Fig. 1 is an image of an example of a rewritable thermal label of the present invention, Fig. 2 is an image of an example of an RWT-IC tag of the present invention, and Fig. 3 is an RWT- IC tag of the present invention. The image of the ^ f column of the goods management system, F i g.4 (a), F i g.4 (b) and F i g.4 (c) are the illustrations of the end in Example 5. . In the figure, symbol 1 is a support, 2 heat of extinction ^ M. 3 is light absorption change m, 4, 9 and 11 are adhesive layers, 5 and 12 are release sheets, 6 is for lamination ¾ | off-inrem, 7 is ink Receipts 3ϋ and 8 are registered IJ layers, 10 is a 10 tag, 13 is an adherend (魏 article), 15 is a rewritable thermal label, 20 is an RWT-IC tag, 21 is a conveyor, 22 is a tube , 24 for RWT—IC tag reader 7, 34 for visible information / erasing laser head, 35 for invisible information fiber erasure, 37 for power. BEST MODE FOR CARRYING OUT THE INVENTION

 First, the smoke rewritable language medium of the present invention (hereinafter sometimes simply referred to as the language medium) will be described.

 The medium of the present invention has a structure in which a reversible feeling feii is provided on the surface of a support, and a laminate material is laminated on the reversible thermosensitive layer.

 In the tfi® medium of the present invention, there is no particular limitation on the support, for example, polystyrene, phthalonitrile butadiene styrene resin, polycarbonate, polypropylene, polyethylene, polyethylene terephthalate, polyethylene naphthalate and other plastic films, synthetic paper, ^^, and paper. The thickness of the support ^^ is not particularly limited. 1 Usually 10 to 500 m, preferably 20 to 200 / zm. In addition, a plastic film is used as the support ^ φ: For the purpose of improving the adhesion to the anchor coat layer and the adhesive layer provided on the surface, an oxidation unevenness method or the like may be used if desired. Surface treatment can be performed by Examples of the oxidation method include corona treatment, kuguchi muri (wet, flame treatment, heat transport, ozone, ultraviolet irradiation treatment, etc., and examples of the roughening method include sand blasting, translating U Examples of such treatment methods are S. These surface treatment methods are suitable according to the specifications of the supporting guard, but in general, the Kokona method is preferably used in terms of effectiveness and workability.

In addition, in order to effectively use the heat generated when the information is reflected by the laser beam, it is also possible to use a high-bubble film as a support. Furthermore, as a branch, It is preferable to use plastic film with excellent Uiffl suitability.

 Further, it is possible to provide an anchor coat layer on one surface of the support. This anchor coat layer is used to improve the adhesion 14 between the «¾ ^ J1 and the supporting book, and to support the tree from '^ W in the coating solution used when providing the feeling of« 0 ^ process «^) 1. This is intended to protect the book, and by providing this anchor coat layer, it is possible to provide a poor support. As the resin constituting the anchor coat layer, various types of resins that are not particularly limited can be confirmed, but it is preferable to use a resin that is excellent in ii 胜. Examples of this resin include acrylic resins, polyester resins, polyurethane resins, and ethylene monoacetate copolymers that can be bridged. In order to use an inferior material as a support, it is preferable to use a coating solution, such as a water tank type or a fine water coating solution, which cannot be used for forming an anchor coat layer. Also, «^? There are no particular restrictions on the material, and various types of known materials can be used depending on the resin used: iW ^. Furthermore, as a matter of fact, there is a wealth of resin that can be built with wires such as ultraviolet rays. This m¾tt kneaded resin can easily increase the density of the gel by changing the amount of illumination, and can form a high-strength resin with a 3 iS density. J1 is a reversible dye that is provided on the surface of the self-separating surface. J1 is generally colorless, a precursor of wrinkle, a reversible colorant, and a binder used as needed. It is composed of additives.

There are no particular restrictions on the tirffi¾-precursor. Conventional heat-sensitive words. Any of the q qs used as dyes in this talent can be selected. The For example, 3, 3-bis (4-dimethylaminophenyl) -6-dimethylaminophthalide, 3— (4-dimethylaminophenyl) -1-3- (1,2-dimethylindole-3-yl ) Phthalide, 3— (4-jetylamino 1-2-ethoxyphenol) 1 3 — (1-ethynole 2-methylindoleol 3-yl)-4-triazarelide methane series ^, rhodamine B Anilinolactam, 3 _ (N-ethinole N-trinole) amino 1-methinole 7-anilino xanthene-based fluoranes, etc., 4, 4'-bis (dimethylenoreaminophenenole) benzhydryl benzyl ether, N — Diphenylenomethane compounds such as Laphine Fuenino Leleuco ^ Lamin, Spiro-types such as 3-Methinorespirodinaphthoviran, 3-Ethinorespirodinaphthoviran, Benzylroy Mechirenpuno ^ ", p- nitro benzo I Lumpur leuco methylene Puno! ^ For select thiazine of ^ one from within, such as such as Les, may be, or two or more kinds selected υ¾ You can use it.

 On the other hand, the reversible '! «Colorant is not particularly limited as long as it causes a reversible color change in the tirtfi ¾ raw material precursor due to the difference in cooling ¾g of calo«. From the viewpoints of chromaticity and repeated durability, an electrocompatible compound comprising a phenol derivative having an alkyl group is preferred.

 The tut self phenol derivative may have an amide bond such as sulfur in the molecule. The length and number of alkyl groups are selected in consideration of the balance between decoloring properties and color developability, but the alkyl groups are preferably those having 8 or more carbon atoms, particularly those having 8 to 24¾g. Masashi. Also, 纖 hydrazination, alkylation with alkyl group in the side chain ^ ¾ ureaation! And so on.

 Examples of phenol derivatives having such an alkyl group include, for example, 4 (N-methyleno-N-octadecylsulfonylamino) phenol, N- (4-hydroxyphenyl) 1N'-n-octadecinourea, N— (4-hydroxyphenyl) one N′-n—octadecyl urea, N— (4-hydroxyphenyl) one N′—n—octadecylthioamide, N— [3— (4— Hydroxyphenenole) propiono] —N′—octadecanohydrazide, 4′—hydroxy-1-4 otadecinorevensamide, and the like.

 By utilizing the crystallinity of such a reversible color-changing agent, when information is said, it is hard-cooled rapidly, while when it is erased, it is calorically hard-cooled slowly, ΐ Congealing and erasing becomes possible.

 In addition, each component constituting M¾ Ji is used as needed for the purpose of achieving uniform dispersion, for example, polyacrylo! ^, Polyaclino ester, polyacrylamid. And polymers such as polymer, polyvinyl acetate, polyurethane, polyester, polyvinyl chloride, polyethylene, polyvinyl acetal, and polyvinyl alcohol, and copolymers of monomers constituting them.

In addition, if necessary

For example, ammonium salts, etc., and as materials, talc, kaolin, silica, titanium oxide, oxidation port, magnesium carbonate, aluminum hydroxide, etc. Examples include ring agents and dispersants.

In order to form the impression 6, first, the appropriate dye is used, and the dye precursor, the reversible colorant, and each 0 component used as necessary are dissolved or dispersed in the coating solution. To prepare. This In this case, for example, alcoholic, etheric, esteric, m ^ i ^ k elemental, melamine toK elemental, etc. can be used! It is excellent and suitable. The ratio of the dye precursor to the reversible colorant is not particularly limited. However, the reversible 'spherical color IJ is usually 50 to 700 parts by weight, preferably 100 parts by weight of the dye precursor. Is used in the range of 100 to 500 parts by mass!

 Next, the coating solution prepared in this way is applied by means of the following 5 l¾ ^ q, and then processed to form insensitive felling. ^^ There is no particular limitation on the reasoning, but it is desirable that the dye precursor does not develop color! / The thickness of the color-sensitive layer formed in this manner is usually in the range of 1 to 10 μιη, preferably 2 to 7 μπι.

 In the rewritable medium of the present invention, a light-absorbing reversal is added to the light-sensitive color layer formed in this way, and light is applied to the light i¾¾ ^ Ji. You can install an absorption crane. Self-light absorption simulation U has the function of absorbing the laser light to be irradiated and converting it into heat, and is appropriately adjusted by the feffl laser light. As the laser light, it is preferable to select a laser beam whose oscillation wavelength is in the range of 700 to: I 40 00 nm in terms of the simplicity of the device (eg 4). AG (FAY b) laser light is preferred.

The light absorbing / converting agent absorbs and absorbs such extraneous laser light, and does not absorb much visible light. When the light absorption / conversion agent absorbs visible light, the visibility of the rewritable medium of the present invention and the barcode removal 14 are reduced. As such a light-absorbing cat ij that satisfies the 'i4t'

I can make it. Ingredients include at least one selected from cyanine dyes, phthalocyanine dyes, anthraquinone dyes, azulene dyes, squarylium dyes, old dyes, triphenylenomethane dyes, indolenine dyes, etc. One type is mentioned. Among these, indolenine dyes are preferred because they have high conversion properties.

In the sensation, tut self-absorption is included, but the content is not particularly limited, but usually 0.:! ~ 3 0 mass ⁰ I preferably from 0.2 to 1 0 weight _^0/0, more preferably 0.5 to 5 wt%.

 On the other hand, a light absorption tube is provided on «¾ Ji: ^, the light absorption plate is generally used as the light absorption plate IJ, a noder, and as necessary, and a material, an antistatic agent, It consists of other accessories.

As the binder, the above-mentioned feelings ¾¾ Although the same can be used, this light absorption change m is required to have transparency to make the lower layer ¾ia. Therefore, as the noinder, a ¾ type resin is preferable, and a linear curable resin such as an ultraviolet ray or an electron beam is particularly preferable.

 In order to form this light-absorbing lanthanum, first, a coating solution containing a light absorbing / converting agent for a selfish person, a kinder indinder, and various kinds of glare IJ used as necessary is prepared. At this time, depending on the type of inverter, an appropriate organic translation IJ may be used if necessary. There are no particular restrictions on the ratio between the binder and the light-absorbing inversion agent, but the light-absorbing IJ is usually from 0.01 to 50 parts by weight, compared to 100 parts by weight of the no-inder. Preferably, it is used in the range of 0.03 to 10 parts by mass. However, knitting light absorbing / converting agents also absorb visible male light, so if there is a large amount of light absorbing hate IJ, there is a risk that light absorbing strict orchids will get tired. When the light absorption leakage is colored, in order to reduce not only the wrinkle of the recording medium, but also the visibility of † f¾ and the readability of the noku code, the light absorption « Minimizing the amount of the replacement agent.

 Next, the coating solution prepared in this way is applied according to the method described in 5) (3 ^^) and hatched by m, irradiation of caloric heat, etc. The thickness of the light absorption «^ 11 formed in this way is usually

The range is from 0. 5 to 1 0 μπι, preferably 0.:! To 3 μπι.

 Lamination material on the rewritable medium of the present invention, on the feeling a ^ ii, on the feeling && / 1 containing the above light absorbing conversion agent, or on the above light absorbing leakage. Are stacked. At this time, printing may be performed in advance on the layer on which the laminate material is ai, and then the laminate material may be laminated, or printed on the laminate material's ophinolem or on the ink receiver provided on the film. Can also be applied.

 As a laminating material used in the present invention, for example, a material provided with a glaze layer on one side of a film is used.

As the film of the laminating material, the laminating material has a laser rate of 80% or more and a force visible). The laser beam used satisfies the requirement that the tHM rate is preferably 80% or more. It is sufficient that the film is made of a material that does not easily cause crusting, and there is no particular limitation, and an arbitrary film can be used. However, the glass is 60 ° C or higher, and the melt is 15 It is preferably 0 ° C or higher. If the glass ^ ¾ is less than 60 ° C, or if it is less than 1550 ° C, it is not durable against repeated laser light irradiation. In addition to causing hue changes and shape changes (bulges or dents) on the difficult side of the laminate, it may cause defects in the laser beam and cause erasure defects. From this point of view, it is preferable to use a polyester-based resin film and a vinyl chloride-based resin film s that are less likely to be broken by a laser beam, and it is also possible to use a fluorine-based resin film.

 Examples of the polyester resin that is the material of the slit self-polyester resin film include polyethylene terephthalate resin, polyethylene naphthalate resin, and polybutylene terephthalate resin. Among these, performance, From the viewpoint of balance such as 14, polyethylene terephthalate resin is the first. As the polyethylene terephthalate resin, for example, polyethylene terephthalate resin, isophthalic acid-modified polyethylene terephthalate resin, hexane dimethanol modification (4 polyethylene terephthalate resin, etc.) can be used.

 On the other hand, as a vinyl chloride resin, which is a material of a film made of a vinyl chloride resin, for example, a copolymer having a number average degree of polymerization of about 800 to 25,000 and a copolymer mainly composed of polyvinyl chloride (example: (E.g., ethylene vinyl chloride copolymer, vinyl chloride vinyl chloride copolymer, vinyl chloride-halogenated olefin copolymer, etc.), or polyvinyl chloride or vinyl chloride copolymer Such as polyester resin, epoxy resin, fat, talinole tree moonlight, vinyl acetate resin, urethane resin, acrylonitrile-styrene-butadiene copolymer, partially saponified polyvinyl alcohol, etc. It is done. These vinyl chloride resins may be used, or two or more types may be used in combination.

 As this vinyl chloride-based resin, a force S of 0 to 70 mass ¾a¾s self-combined with respect to 100 mass parts is usually used.

 In these films, various additives, for example, an antioxidant, a weathering agent, an ultraviolet absorber, an mi-lubricant, an antistatic agent, a filler, and an antifouling agent, as long as the object of the present invention is not impaired. An agent or the like can be contained.

 The ItitESt off-film in the laminate material can be unstretched film, boat stretched film, or bistretched film. Further, the thickness is not particularly limited, but from the viewpoint of the laser beam's ¾ © layer property, it is usually 1 to 200 / zm, preferably 3 to 15 Ο μπι, and more preferably. 5 ~: l OO / xm.

The laminating material has a transversal rate of 80% or more of laser males irradiated in the case of 2 ^ erasing. It is necessary to be. (This laser) By setting the feMi rate to 80% or more, it is possible to rewrite without lowering the word ¾, and to give the heat necessary for erasing the sensation ^ feii located in the lower layer. Can do. The laser rate is more than 85%.

 The visibility of the laminate material is preferably 80% or more. If the visible light rate is 80% or more, the visibility of the visible “it¾” and the bar code reading suitability, etc., which are felt in the sense of the “¾¾” body, are good. More preferably, the visible rate is 85% or more.

 In the present invention, the laser ¾ ¾ ¾ ¾ ratio of the laminate material refers to a value measured according to J I S K O 1 15.

 Note that the above-mentioned laser ¾H¾fi rate and i τ viewing rate of the laminate material is used as a laminate material in which a film provided with a later-described agent layer and an ink receiving layer is used. This means the laser beam rate and the visual rate. When the laminate material has a UV absorption property, the recognized media was ¾ cg after B® ^ \ Decrease in image density due to ultraviolet rays including sunlight The dye precursor, which is a dye precursor, can suppress the ^^ absorption insensitivity agent, and can greatly contribute to the improvement of the light resistance of the medium.

 In the laminate material, if necessary, an ink receiving film can be provided on at least one surface of the film.

There is no particular limitation on the coating agent that constitutes the ink receiving all, and it can be used in accordance with the printing; As the coating agent, a polymer neodymium having a glass _g force of s 20 ° to loo ° a. Is preferable in terms of ink adhesion, and a Tg of 30 ° C to 70 ° C is preferable. .

 As the coating agent made of such a polymer material, for example, at least one resin selected from, for example, a polyester-based resin, an talyl-based resin, and a polyurethane-based resin is preferable, and in particular, a polyester-based resin is suitable for laser light. It is preferred for its durability (meta-beta 14).

 In the present invention, a self-coating agent can be used, and the ink receiver 1 can be provided on one side or β of the film. The ink receiving as can be provided at the interface between the formed printing layer and the s ^ film.

There is no particular restriction on the shape of the fUfS ^ k receiving ¾1, and the following ¾ ^ Ρ, for example, ΙίίΙself polymer material The ink receiving ai can be formed by applying a coating solution containing no material to the aged film using a gravure, Meyer bar, air knife, die coater, etc. . The thickness of the ink receiver 3 is usually 0 · l to 5 / m³, preferably 0.03 to 3 / zm, and more preferably 0.05 to 2 / im.

 A printed layer can be provided on the ink receiver a thus formed. There is no particular restriction on printing; ^: The conventional power formula of ^ P can be used, but from the viewpoint of the durability of the ink, TO of UV type ink is preferable, for example, letter press (convex! ¾), gravure , Flexo, screen, ink jet, electrophotography; ^: etc. can be used.

 In order to layer the laminate material on the language # ^ body ^ ^, it is preferable to laminate the laminated material film using adhesive. As this crane, various agents such as a sensitizer and a stringent agent (adhesive) can be used. However, a fiber that does not interfere with the transmission of laser light is preferred. Les.

 Examples of sensitizers include polyethylene, ethylene monoacetate copolymer, polyurethane, polyester, and polyvinyl alcohol alcohol. From the point of view of durability, polyester and polyurethane are strong. Coating

; ^ Is not particularly limited, and any of the well-known coatings; ^ can be used: i¾s. The thickness of the sensitizer layer is usually 0.1 to 1: 100 m 禾 1¾, preferably:! To 50 m.

 On the other hand, examples of ffi-glue (adhesive J) include acrylic adhesives, polyester-based adhesives, polyurethane-based adhesives lj, silicone-based adhesives, and rubber-based adhesives that are used in atta / ester copolymers. Acrylic adhesives and polyester adhesives are particularly preferred in terms of laser ¾H properties. There is no particular restriction on coating; ^: Any wipe can be used appropriately from the well-known coating ^ ;. The thickness of the adhesive layer is usually about 3 to about 100 μm, preferably 5 to 50 // m.

 For these adhesives, the objective strength of the present invention is not impaired. Various additives, if desired, for example, safety, antioxidants, weathering agents, ultraviolet absorbers, l »J, lubricants, electrification. Inhibitors, authentic agents, antifouling agents, etc. can be contained.

The adhesive layer thus obtained is preferably capable of being crosslinked S in order to improve durability from external factors. When the glaze layer is formed, it may be promoted by a force beam or the like, or the adhesion with the film layer may be improved. In addition, when the printing layer is provided on the lower layer of the laminate material after the ink receiving film is applied to the laminated material, the printing layer can be provided before the lamination. On the other hand, when a printed layer is provided on the surface of a laminated film, it does not work either before or after lamination.

 Next, the rewritable thermal label of the present invention has an adhesive layer on the supporting surface on the opposite side to the side on which the laminating material is laminated in the above-mentioned wording medium.

 The adhesive layer is preferably made of a pressure-sensitive adhesive from the viewpoint of convenience of sticking to the adherend. '

 The adhesive that constitutes the Saito adhesive layer exhibits a good adhesion ft to the adherend, and »recycles both the adherend and the label ^ \ A resin that does not inhibit this recycling is preferred. Especially as a resin component, ACLINO! A pressure-sensitive adhesive containing an ester copolymer is excellent in recyclability and is suitable. In addition, rubber-based, polyester-based, and polyurethane-based adhesives can also be used. In addition, silicone adhesives that excel in HM production are also possible, but because of poor compatibility with the adherend, the recycled resin does not become non-uniform and can be reduced. ^ It may cause defects. In addition, this adhesive may be any of an emulsion type, a flip type, or a solid type, and if it is a summary type, it is applied for repeated use of the adherend. Rabeno ¾f is preferred because it improves durability. The thickness of the glaze layer is usually in the range of 5 to 100 m, preferably 10 to 50 m.

In the rewritable thermal label of the present invention, a release sheet can be provided on the agent layer as necessary. This release sheet is made of polyethylene terephthalate (PET), foamed foam, plastic film such as polypropylene, or a sheet of polyethylene laminating paper, dalasin paper, clay coated paper, etc., coated with as required. Used. ^ As a glaze, a silicone type is preferable, and other fluorine type and g alkyl group-containing rubamate type can also be used. The coating thickness of “isolation” is usually in the range of 0.1 to 5.0 m, preferably 0.2 to 3 · μ μπι. Further, the thickness of the release sheet is not particularly limited, but is usually 10 to: I 5 0; z m¾g. There are no particular restrictions on the timing of the formation of each layer in the rewritable thermal label of the present invention. For example, on one side of the support, an anchor coat layer, a heat-sensitive color layer, and a light absorption layer as necessary And laminating material layer in that order, then a crane layer on the opposite side of the word It is preferable to provide it. Kit self-anchor coat layer, insensitive Ji, and light-absorbing paddles can be used for direct gravure, gravure reverse, micro gravure, Mayer bar, air knife, blade, die, ronole knife, reverse, curtain coat. It can be formed by coating and drying with a coating method such as flexo printing, letter press, and screen, and if necessary, further heating. In particular, the feeling ^ feii should be displayed so that it does not color. The m¾w kneading type is cured by irradiating a line.

 On the other hand, the agent layer may be formed by using a qr method such as a ronore knife coater, reverse coater, die coater, gravure coater, Meyer bar, etc. Alternatively, an adhesive may be applied to the release surface of the release sheet, and an adhesive layer may be provided, and then adhered to the support, and the resulting layer may be transferred. The latter transfer method is preferable because it can be provided at a distance and the sickle efficiency of the adhesive can be increased without developing the color Ji.

 FIG. 1 is an image diagram of an example of the rewrite thermal label of the present invention.

 The rewrite thermal label 15 is provided on the one side of the support ^: 1 with a sensation! 2 and a light absorption conversion layer 3 layers on top of it, and the ink receiving layer 7 on the surface. It is laminated via a 6-force S glaze layer 9, and has a structure in which the opposite surface adhesive layer 4 of the separation 1 and the release sheet 5 force S are sequentially provided. In Fig. 1, the printing layer 8 is formed on a necessary portion on the ink receiver 7 provided on the laminating film 6, but the ink provided on the lower surface side of the laminating film 6 It may be formed in a necessary portion on the light receiving plate (Fig. ^: Z), or may be formed in a necessary portion on the light absorption tube 3. In addition, the light-absorbing crane 3 is stacked, and it can be formed into the required part on the feeling feil 2.

 Next, the ^ smoke IC tag with the rewritable thermal label of the present invention (hereinafter referred to as RWT-IC tag has the power s); It has ¾t that is pasted so as to face an IC tag that can be read and written.

The RWT-IC tag of the present invention comprises invisible 'IffBlE ^' erasing means and visible information erasing means that can be written and erased by insects, and has flexibility and can be modified. Visible information from the rewrite thermal label depends on the size of the base. The amount of information that can be used is several tens of sentences ^^, whereas IC tags can store thousands of characters of invisible information. Therefore, the RWT_IC tag according to the present invention can make a large amount of information with / hS by saying the minimum necessary information as visible information and other detailed information as invisible information. In addition, because of its flexibility, it has excellent adhesion to curved surfaces.

 FIG. 2 is an image diagram of an example of the RWT-IC tag of the present invention.

 RWT-IC tag 20 peels off release sheet 5 affixed to glaze layer 4 of Relite Thermonolavela nore 15 in hate F.g. 1 Shelving agent layer with release sheet 1 2 1 Shelf bowl with 1 force S IC tag 1 0 force S has a structure attached. The adhesive layer 11 is for adhering the RWT-IC tag 20 to the adhesive body, and is preferably made of an adhesive from the viewpoint of convenience.

The rewritable thermore label 15 shown by Fig. 1 and the RW T one IC tag 2 0 shown by F ig.

The release sheet 5 and the release sheet 12 attached to the substrate can be peeled off and attached to the adherend 13 which is an article to be heaved and transported.

 In the present invention, as the laser beam (laser beam), it is preferable to use an outer laser beam whose wavelength is in the range of 700 to: I 400 nm. When the wavelength is shorter than 70 O nm, the visual recognition and optical reading symbol reading ability deteriorates, which is preferable. If the wavelength is longer than 1400 nm, no. Since the energy per unit is high and the heat is large, the light absorption change g force S is gradually destroyed, and there is a risk that the durability of repeated erasure will decrease.

 In addition, as recording ^: in the present invention, the scanning mirror is made to oscillate the laser beam without oscillating the laser beam. Therefore, the word fi ^ that only draws and draws laser light by oscillating the laser light is preferable.

In addition, the difference between the surface of the medium and the laser light source when performing recognition depends on the character density (barcode removal '14), although it depends on the scan speed and the irradiation output. There is. Preferably, the laser power is 2.0 to 2 OWm &. For staves, 1 5 0 to 2 5 O mma¾, duty is 100%, and the laser power is 5 to 3 OW &. For erasing. It is about 0 to 500 mm and the duty is about 100%. Scan speed Natsure, printing performance or erasing “does not impair the vitality, preferably faster in the range.

 By irradiating the m laser beam with only the energy required for the contract in a short time, a rapid cooling effect can be obtained and a good image can be obtained. Also, you can bring a quick cooling effect by blowing cool air. For this cooling, laser beam and cooling with cooling air can be used alternately.

 Of the media described in this way, the rewritable thermal label having the glaze layer on the heel side is affixed to the adherend by leakage or hand-picking. «I fortune-telling ^^ can be adopted by: ： Roller plunger ^: ji¾ by roll, Air blow by air ^ :, etc. In addition, the medium can be provided on the adherend not only by the use of the agent, but also at any desired position. In this way, the adherend with a speech medium fulfills the purpose of transporting the article, etc., and is used as needed for re-coagulation. »For example, you can remove dust by blowing air, wash away with water, or leave with Rukari.

 It is necessary to rewrite the information on the affixed language media to new information in order to replay the transferred adherend. To do so, delete the recorded image.

 In the present invention, image erasure; w includes laser power tm, heat ja by heat, etc., and the heating means is not particularly limited. Next, an example of erasure is described.

 Erase to rewrite the media 'fffg to a new one. First, irradiate the surface of the medium with external laser light from 7 0 0 to 1 4 0 0 11! 11. In addition to irradiating laser light with a predetermined amount of energy, remove heat rolls, etc .; ^ Increase the presence rate by further slowing down cooling, such as by spraying firewood or leaving firewood be able to. The force 0 heat roll can be covered at 1 00-1 4 0 ° C 3 ^, and if it does not damage the medium surface, it is possible to use a heating roll without any limitation. it can. For example, rubber rolls and stainless steel rolls can be used. In particular, a silicone rubber mouthpiece excellent in metaphysics can be shelved. The rubber should be 40 degrees or higher. Also, the image can be erased by blowing heat JL. This, 8 0

The hot air of the kite is blown for 0.01 to 30 seconds at ~ 400. Taking into account the wording medium and the disappearance of the body, the power of heating at a high temperature of 100 to 35 ° C for 0.01 to 3 seconds with a soothing healing time is preferable.

Next, after deleting the information in this way, the new ^^^ Know the information. In this way, the adherend and the rewrite thermal label can be used repeatedly by repeating the selfish process.

 In the present invention, the number of repetitions of this wording and erasure can be 100000 times or more. The adherend and the medium used ^^ can be sent to the recycle process together if necessary. IC chips and circuits are provided: ^ It is desirable to remove the media before recycling.

 The present invention also uses the above-described RWT-IC tag, and weaves it in a worm state against both the invisible information of each IC tag and the visible light f¾ formed on the surface by a reader / writer in the middle of conveyance. Also refer to BW replacement, which automatically erases or writes multiple times.

 For this rewriting method, as a reader / writer, the invisible information is recorded and erased on the IC tag of lift himself, and the information is erased by the same device. It is possible to use a reader / writer that can be inserted. In the present invention, the above-described smoke rewritable medium of the present invention, the rewritable thermal label or the RWT-IC tag is affixed to the tube a sample, and ^^ is automatically erased or written with an insect. An article management system can be constructed.

 This article management system will be described by taking an article system using the RWT_IC tag of the present invention as an example.

 Fig. 3 is an image diagram of an example of an article management system using the RWT-IC tag of the present invention.

Tube with RWT-IC tag 20 0 S attached on top surface 2 2 force Feeded on conveyor 2 1 and conveyed in the direction of the arrow. The tube 2 2 RWT—When the IC tag is placed under the rewriter writer 2 4, the conveyor 21 is temporarily stopped by the force S) and the RWT-IC tag reader / writer 2 4 ^ Then, the RWT-IC tag 20 is not visible rnmt · Erasing hand visible 'Word · Erasing means is erased or written. After that, the conveyor 21 is moved, and the pipe 2 2 is treaded at a predetermined place. Note that the 1 \\ ^ — 10 tag return filter 2 4 has both the non-visual sickle eraser and visible information eraser and υ¾ inset functions of the RWT—IC tag 20. The The article management system using the RWT-IC tag of the present invention has various management such as (a) parts management and process management at the production site, (b) management at the stage (inspection ^ i wholesale etc.), ( c) Sales floor (D) Management at the recycling stage, (e) Logistics management, (f) Checkout / rental management (automatic checkout at cafeteria, library Management, etc.), (g) product 'product' 1 * ¾ «(traceability information ¾ U 乍 product † f¾«, poster digitization, etc.), (11) 1¾ / crime prevention (expiration date management, shoplifting prevention) Etc.), (i) Authenticity judgment brand H¾ij, (j) 赚 Accident prevention, (k) Animal management, etc. Among them, the power to apply to logistics W¾.

 The article management system using the RWT-IC tag of the present invention is effective in the case of a plastic container in which the pipe a sample is an article transported by a conveyor in a flow of 流 ¾1.

 The smoke rewritable language medium of the present invention has the following effects.

 CD reversible 'ι¾ «¾ & By assembling the laminate material, it is possible to avoid damage to visible media by repeatedly erasing the visible information by irradiating laser light in the insect state. There are few, and it becomes possible to reuse it more than 100 times. Costs can also be reduced by IJ.

 (2) Even if the laminate material is laminated, it is possible to use the ladle of the laminate material to improve the wording and erasability by laser light, the visual recognition of insensitive color, and the bar code by the bar code reader. It is possible to suppress a decrease in scrapability.

 (3) Up to now, ¾¾ Printing on Ji has been difficult in terms of ink adhesion 14. However, the lamination of laminate materials improves the adhesion of ij ink, and is extremely important for management. Therefore, it becomes possible to print a color color that brings about a characteristic, and distribution ^ becomes much easier.

 (4) Due to the use of the laminate material, the image storability can be improved in terms of the key and light resistance.

(5) An RWT-IC tag can be provided by connecting to an IC tag via an adhesive layer. By using this RWT-IC tag for article management, it is possible to erase or write information to both the invisible information recording and erasing means and the recording / erasing means of the RWT-IC tag. Therefore, the RWT-IC tag is suitably used for an article system. Male example Next, the power to explain the present invention in more detail by way of examples The present invention is not limited to these examples.

 The performance statement of the rewritable media obtained with glue was made according to the males shown below.

KUNI (printing) male>

 YAG (FAYb) laser (wavelength: 1064 nm) [trade name “LP-V10.J] manufactured by Sunkus Co., Ltd.” was used as a laser marker for illuminating the laser beam.

 Irradiation distance 18 Omm, laser output 10W, duty 100%, scan speed 100 00mm / sec, panorless cycle 100 / is, line width 0. lmm, fill interval 0.05mm, adjusted to alphabets A to J I made a 10-letter word.

Erasure>

 Word Heat the J1 at the tip of the air outlet at 300 ° C for 2 seconds from the 10 mm hoof for 2 seconds, and then erase by natural cooling o

<Rewriting test>

 The word of disgust (1) ^ W and erasure of (2); ^ Repeated 10 times, 300 times and 1000 times.

 CD trnmm

 The sample for the candy obtained with the glue is confused by the number of replacements and the visibility when it is rewritten 10 times.

 (a) Soot concentration

 Using a Macbeth light gage meter [Macbeth ¾¾ ^ ¾ ^, “RD918”], the sample was examined according to the following criteria.

 ©: Brightness 0.75 or more

 ◯: Luminance 0.65 to less than 0.75

 △: Light ^ ¾0.55 to less than 0.65

 X: ^^ Ο. Less than 55

 (b) Surface failure state

Using a surface roughness meter [Mittone; ^, "SV300S4"], laminate neo; (samples of various surface conditions before occupying S shells, and measured 10-point average surface roughness Rz. A standard was set ^ The flf sample obtained with glue and the samples of various surface conditions were visually observed. And then fffified according to Judgment ».

 Standard (no printing) 2. 11 μm straight

 : Change less than 0.5μπι

 Ο: Change 匕 0.5〜1 Ομΐη

 Δ: Change 匕 1.0-2.0 Full

 X: Change 2 or above

 (c) Visibility

 We visually observed the state of the word at the time of rewriting 10 times, and stated the visibility according to the following judgment. Figures in parentheses indicate the corresponding optical values.

 A: Characters can be easily visually recognized. (Light ^ t degree 1.2 or more ±)

 ○: Visible, but concentration is low. i. less than ο〜ι · 2)

 △: Barely approved & o.5〜ι · ο less)

 χ: Not visible. (Light ^ t degrees. Less than 5)

 (2) Laser light of laminate material m¾

 The ¾il rate of the laminated material at a laser wavelength of 1064 nm and a viewing wavelength of 550 nm was measured with a spectrometer [“UV-3100PC” manufactured by Shimadzu Corporation].

 (3) Printing ink adhesion

 Based on JISK 5600-8-8, the printing ink used when the cellophane adhesive tape is applied and peeled off is divided into 6 levels (excellent) 0, 1, 2, 3, 4, 5 (poor) Digitize (4) m

 The change in the image after immersing the fito with the word fi® in ethanol for 1 hour was visually observed, and the following judgment was made. The value in () indicates the corresponding value of light t.

 A: Characters can be easily visually recognized. (Light ^ 1.2 or higher)

 ◯: Visible, but density power s slightly low. (Light ^ t degrees 1.0 to less than 1.2)

△: Barely approved

 X: Not visible. (Light ^ t degrees less than 0.5)

 & Preparation of sensation ^ 1 form draping ι liquid (A¾)

As a dye precursor, it is a triarylmethane series 3— (4-ethynoleamino-1,2-ethoxyphenyl) 1-3— (1-ethynole-1,2-methinoleindol 31-yl) 4-14-1azaphthalide 10 mass 4— (N-Methyl-1-N-octadecylsulfonyl) Mino) Phenol 30 parts by mass, vinyl chloride monovinyl copolymer as a binder resin [2 on-carbite machine, trade name “VAGH”] 25 parts by mass, 1.5 parts by mass of polyvinyl acetate as a dispersant In addition, 2500 parts by mass of tetrahydrofuran as 5 ^ J was dispersed and dispersed with a powder and a disperser to prepare a sensitive ft ^ fel-type coating liquid (liquid A).

Production Example 2 Preparation of light absorption type dramatic coating liquid (B¾)

 Outside light absorption conversion agent (Nickeno ^ old system dye) [trade name “SDA-513 1” manufactured by Tosco Co., Ltd.], 1 part by mass, UV curable binder (urethane atylate) [Daiichi Seika Made by Kogyo Co., Ltd., trade name “PU-5 (NS)”] 100 parts by mass and W charge (silica) [made by Nippon Aerosil Co., Ltd., trade name “Aerosil R-972J] To obtain a light-absorbing crane-shaped dramatic coating liquid (liquid B).

Column 3 Adhesive layer with release sheet

 Polyethylene terephthalate (PET) film with a thickness of 10 Ο πι, manufactured by Le Co., Ltd., trade name “Lumilar T-1 60”], with a butterfly attached to a silicium oil [¾ Le 'Dow Coung Co., Ltd., trade name The release sheet was coated with “SRX_211”] so that the post-thickness was 0.7 m. On the silicone resin layer of this release sheet, Atalinole-based rice occultation J [^ Nki $ St Co., Ltd., product name “Olinokuin BPS-l 109”] 100 parts by mass of a cross-linking agent [Japan Polyurethane Industry ( Coated with a roll knife coater; ^: so that the thickness after drying is 30 / m. Was dried in an oven at a temperature of 100 ° C. for 2 minutes to give a pressure-sensitive adhesive layer with a release sheet. Male example 1

100 / xm thick polyethylene terephthalate film [Toyobo Co., Ltd., trade name “Crisper 50K2411J” on the easy-adhesion coat side, the liquid A prepared in Remanufacturing 1 was used as a support. Was applied for 5 minutes in an oven at 60 ° C. to form a sensation, and then on this sensation m¾ Jl, the B liquid prepared by it: After applying with flexo; ^ so that the thickness of the film becomes 1.2 μπι, drying with a 60 ° C oven for 1 minute, UV light is irradiated at a light intensity of 220 mJ / cm ² to change light absorption heat ^ Shi

 In the next stage, the pressure sensitive and light absorbing leakage leakage S was formed, and the adhesive layer with a release sheet that was confirmed in 3 and the surface was laminated with a laminator to obtain a sample.

On the other hand, as a film for laminating, a 25 μπι thick PET film (manufactured by Product name "Lumirror T type", glass fiber: 70 ° C,: 260 ° C] on one side (± ϋ), polyester resin [^ Sheep, Leak Co., Ltd., product name "Byron 2 OS S"] ¾¾J ¥

It was coated to 0.1 m to form an ink tray. On the opposite side (lower layer) of this ink receiver a®, as an acrylic translating adhesive, an acrylic adhesive, manufactured by Cinki Manufacturing Co., Ltd., trade name “BP S-1 109J”, 100 parts by mass, a crosslinking agent [Nippon Polyurethane Co., Ltd. trade name “Corotate LJ] Apply an adhesive coating solution containing 3 parts by mass so that the thickness after drying is 20 μm. A laminating material was formed by forming a pressure-sensitive adhesive layer for a minute and measuring the transmittance of laser (wavelength 1064nm) and visible light (wavelength 550nm) of this laminate material.

 Next, the laminate material thus prepared was applied to the light absorption heat conversion layer of the previous sample. Next, uv hard ink [Co., Ltd.

Using the brand name “Be stcurel 6 lSj” manufactured by T & KTOKA, partially printed at room temperature with Rabeno [¾1 膦 “LPM300” manufactured by Lintec Co., Ltd. to produce the rewrite thermal label of the present invention, and then 10 We focused on the cm square sheet sample and faced the ^ TO sample such as words and erasures.

 For this ^^ sample, we did a '14 ^ comedy. The results are shown in Table 1.

Example 2

 »In Example 1, for laminating ¾ί off film, transparent vinylolate film with a thickness of 80 μm [manufactured by Riken Technos Co., Ltd., trade name“ PVC transparent A23P 80μιη ”, glass rolling: 82 ° C, ¾: 180 ° C] was not used, and no force-receiving unit was provided. The same operation as in Example 1 was performed, and the ^ ffl sample was entered, and the result was Shown in Table 1.

Difficult example 3

 In Example 1, instead of providing a printing layer on the ink receiving surface 1 of the laminate material, a printing layer was provided at the interface between the light absorbing layer and the adhesive layer of the laminating material. Various operations were performed, a test sample was prepared, and performance evaluation was performed. The results are shown in Table 1. Difficult example 4

In the case of Difficult Example 1, the same procedure as in Example 1 was performed except that no Sink receiver Si! Was provided on the S-film of the laminate material. I went whip. The results are shown in Table 1. Comparative Example 1

 In Example 1, the same procedure as in Example 1 was performed, except that the laminate material consisting of the ink receiver 3 mm, the film for laminating and the occupant layer was not laminated, and a ffi sample was produced. An evaluation test was conducted. The results are shown in Table 2.

Comparative Example 2

In male example 1, as a St film for laminating, a thickness of 50 μm, a laser) Polyethylene film with a fe ^ rate of 75% [I II Chemical Industry Co., Ltd., trade name “LDPE 5 O imj, glass” _: — 25 ° C,: 130 ° C] was used in the same manner as in Example 1, and the ^ ffl sample was tilted, and the wording was performed. The results are shown in Table 2.

Comparative Example 3

 In Example 1, as the base film for laminating, the surface of the PET film was subjected to sand matting, and the matte thickness was 25 m, and the laser rate was 76%. Finolem [manufactured by Teijin DuPont Films, Ltd. The name “TS 25 xm”, glass temperature: 70 ° C, melting point: 260 ° C], and the absence of the force ink tray were the same as in Male Example 1, and the ^ ffl sample was collected. , Went to sex crane Wffi ^^. The results are shown in Table 2.

Comparative Example 4

In Example 1, as a film for laminating, a polypropylene film with a thickness of 20 _μm and a laser rate of 78% [manufactured by Santo Totus Co., Ltd., trade name “ΡΑ 20μηι”, glass _: — 20 ° C Table 2 shows the results of performing the same operation as in Example 1 except for using,: 170 ° C, storing the ^ ffl sample, and making performance statements.

Table 1

[Note] PET: Polyethylene terephthalate film PVC: Vinyl chloride film

Table 2

 [Note] PE: Polyethylene film

 PET mat: A matted polyethylene terephthalate film

*: Laminate material destruction Male example 5

 Invisible information! ^ · Insect IC chip [Lintec 權, product name “TS-L102CCJ], which consists of an IC chip that is an erasing means and an antenna circuit that is attached to it, obtained on the surface of difficult example 1 The release sheet was peeled off and attached to the rewritable thermal label, and the RWT-IC tag 20 shown in Fig. 2 was applied.

 Next, this RWT-IC tag 20 was peeled off with the release sheet 12 removed.

Affix to the upper surface of plastic container (size: length 55 Qmm, width 5Q0mm, length 100mm) and paste this pipe on the conveyor. The following 1¾ was carried out using a reader Z writer.

 RWT— IC tag reader / writer: Visible information recognition / erasure laser head 34 Y AG (FAY b) laser marker [SUNKS NE ± ¾, W ^ “LP—V1 0”, Oscillation wavelength 1064nm] and a device that is equipped with a ¾β “invisible” 謝 eraser 35 [Uenore Catnet ring, RZW controller “TE-301-RS” + antenna “AN-102”] o

 Visible information wordsRecording with the erasing laser head 34Distance from the top of the plastic container up to the distance that can be erased: ^ 18 Omm, erased to 23 Omm height automatically set .

 The invisible information erasable bracket 35 is set at a height of 15 Omm from the top of the plastic container.

 F i g.4 (a), F i g.4 (b) and F i g.4 (c) are explanatory diagrams showing the law in this example.

 First, an object 22 having an RWT-IC tag 20 force S affixed to the upper surface is placed on the conveyor 21 [Fig.4 (a)]. Next, the competition 21 is knitted, Kenji ^ ¾¾ ^ thing 22,

Carry it into the reader / writer 24 for the RWT-IC tag and stop the view of the conveyor 21 [Fig.4 (b);].

 The reader / writer 24 for the RWT-IC tag is equipped with a laser head 34 for erasing visible information and a laser head 34 for invisible information, and an eraser 35 and force S for invisible “隨”. A rubber-based sand curtain 37 force S is provided at the lower part to allow the tube 22 to enter and exit, and a viewing window force S with a laser shielding resin film is provided on the front side. ^ Τ).

 , Is the visible information as follows. Ίίϊ ϊ WT— IC tag 20 ^ worm rewrite thermal label affixed to the object 22 «I product name and size visible as visible information ' lf¾'s · The erase laser head 34 erased the visible information mentioned in (1), (2) and (1). As a result, (1) ¾ (2) I could visually confirm that the erasure was performed.

On the other hand, the invisible information was confirmed as follows. R WT— IC tag 20 non-removable IC tag «I product name, size, lot number, quantity is invisible and the invisible information is recognized by the erasing member 35 (1) Record, (2) ( The invisible information recorded in 1) was deleted. The result is a handy-type leader [Well-Catnet ± ¾, “RHT-100-02”] I read the information of the ^ insect I c tag, and (1) tm, (2) it was confirmed that the erasing power was performed reliably.

 As a result, both visible and invisible information can be automatically written and erased by insects using the same device, and the expected results were obtained.

 After completion of the detection, the conveyor 21 was re-leaked, and the pipe 2 2 was put out of the RWT—IC tag reader / writer 24 [Fig. 4 (c)]. Industrial applicability

 The rewritable medium according to the present invention remarkably improves rewriting durability (meta-skin 14) while remarkably erasing and erasing performance repeatedly using a laser. It is possible to improve image storability in terms of magnetism and light resistance, and writing and erasing or erasing visible information is automatically performed in a non-standard state using a laser without human intervention. be able to.

 In addition, an RWT—IC tag can be given by making it an IC tag through the agent layer. By turning this RWT-IC tag into an article, the invisible information on the RWT-IC tag is erased or written to the eraser. Therefore, the RWT-IC tag is preferably used for construction of an article management system.

Claims

The scope of the claims

1. Support ^: Reversible 'ffiSf ^ feii on the surface, and laminating material on the reversible' ffi f ^ Ji. The smoke-replaceable lecture medium, in which the laminating material has a laser rate of 80% or more. -

2. The medium according to claim 1, wherein the visibility of the laminate material is 80% or more.

 3. Light absorption! ^ Reversible ^ containing force, 'or reversible' ffi¾¾ Jl is provided with a light absorption heat change agent i having a light absorption heat conversion agent. Non-repellent type rewritable crane medium.

 4. Laminate talents are those in which a glaze layer is provided on a film, the glass of the film is 60 ° C or higher, and the strength is 150 ° C or higher. 3. A shelf rewritable medium as defined in item 1 above.

 5. The laminate material according to claim 1, wherein the laminate material is a film provided with a glaze layer, and the film is a polyester resin film or a vinyl resin film. To the paragraph! ¾ ^ Smoke rewritable language.

 6. The smoke rewritable rewritable medium according to claim 1, wherein the wavelength of the laser beam is from 700 to 1400 nm.

 7. An ink tray 31 is provided on at least one side of the »year-old film of the laminate material.

8 · The ink receiving film provided on the laminated film or on the film. 3ϋ The printing layer on the surface has a printing layer. .

9. Reversible 'I "键 纖 fe or claim that has a printed layer on the light-absorbing leakage surface: any one of! ~ 6.

 1 0. Claims 1 to 9: The difference between items 1 to 9 纖 Rewriteable words in paragraph 1 An adhesive layer is provided on the other side of the laminating layer on the opposite side of the laminated material. Relaxermanorelavenore with glue.

1 1. Claims 1 0 Power ^^ Smoke invisible 'Small smoke I c tag with rewrite thermal label with shells occupying the IC tag that can read and write' IffR '.

 1 2. Claim ^ 1 Smoke IC tag with rewrite thermal label as described in 1 Use a reader Z writer to record on the invisible surface of each I c tag with laser light. For both the visible and the visible, the remark is to automatically delete and write If information in a bug state repeatedly i¾¾