JP2012145849A - Method for manufacturing die-cut seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a die-cut seal, which can easily cope with a small amount for each of many product classes, and by which manufacturing cost is relatively low even if many complicated die-cut patterns are required.SOLUTION: An adhesive layer is applied to a release film by screen printing, further a resin layer of planar shape is laminated on the adhesive layer by the screen printing using a same screen plate, a multicolor pattern is formed on the resin layer by an ink jet printer, and furthermore, a burnishing layer or a matte clear layer is laminated on the adhesive layer by the screen printing using the screen plate of a same image.

Description

  The present invention relates to a method for manufacturing a die-cut seal, which is easy to produce in a small amount and in a wide variety and has a relatively low manufacturing cost even if a large number of complicated punching patterns are required.

  Die-cutting stickers and stickers to be attached to stationery and bags are conventionally manufactured by half-cutting, that is, half-cutting using a Thomson cutter, as disclosed in JP-A-6-308888 or JP-A-7-72797. Was. A thin release film is attached to the back side of a sheet-like pattern sheet that becomes an individual seal or sticker via a pressure-sensitive adhesive, that is, an adhesive, and after that, the pattern sheet is half-cut with a Thomson cutter. By removing the scrap after processing, a die-cut seal or sticker supported by a release film can be obtained.

  In the half-cutting process using the Thomson cutter, it is necessary to manufacture a punching die corresponding to the plane figure of the design each time. If there are many kinds of designs and the number of individual productions is small, the cost becomes high. In addition, since the scraps are removed from the sheet-like pattern sheet, the raw materials are wasteful and the costs for processing the waste that is the scraps are also required.

  For this reason, pressure-sensitive transfer seals that do not require half-cutting are now widely used. In order to manufacture a pressure-sensitive transfer seal, a pattern layer is provided on a release film by screen printing. An adhesive layer may be printed on the design layer via an intermediate layer called a clear layer or a coat layer. This type of transfer seal is disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2000-289393 and 2003-231393.

JP-A-6-308888 JP 7-72797 A JP 2000-289393 A JP 2003-231393 A

  Conventional pressure-sensitive transfer seals are usually printed by screen printing using a different screen plate for each color pattern, so many screen plates are required for multi-color patterns, which increases production costs. To do. In the case of a gradation pattern or a very fine pattern, it is practically difficult to obtain an accurate pattern. In addition, the color ink layer constituting the design layer contains a large amount of colored ink, so there is a difficulty in adhesion. For this reason, the planar shape of the adhesive layer and the intermediate layer must be made slightly larger than the design layer. Rather, it looks quite different from what is called a die-cut seal.

  The present invention has been proposed to improve the above-mentioned problems associated with conventional pressure-sensitive transfer seals, and a method for producing a die-cut seal that can easily cope with a large number of necessary die-cut patterns with a small variety of products. The purpose is to provide. Another object of the present invention is to provide a method of manufacturing a die-cut seal that can be manufactured at a relatively low cost even in a small variety of products. Another object of the present invention is to provide a method for producing a die-cut seal capable of imparting a change to a pattern by forming a colored resin layer.

  In the method for producing a pattern-seal sticker according to the present invention, a screen plate on which one or a plurality of complicated transmission images are formed in screen printing is used. An adhesive layer is applied on the release film by screen printing using this screen plate, and a transparent or colored resin layer having the same planar shape is laminated on the adhesive layer by screen printing using the same screen plate. A colored pattern is formed on the resin layer by an ink jet printer, and a glossy or matte clear layer is laminated on the adhesive layer by screen printing using the same screen plate.

  In the method for producing a die-cut seal of the present invention, in order to form a resin layer having a predetermined thickness, screen printing may be performed a plurality of times using the same screen plate for the resin layer. This resin layer is preferably made of an ultraviolet (UV) curable resin, and the resin layer is cured in a few seconds in response to the light energy of the ultraviolet, so that time for drying is unnecessary. Further, in order to prevent the die-cut seal from being damaged at the time of peeling, a peelable overlapping film may be attached to the seal sheet.

  In the method for producing a die-cut seal according to the present invention, a multi-color pattern die-cut seal can be produced only by using the same screen plate by using an ink jet printer. As a result, the die-cut seal manufactured by the method of the present invention is easy and inexpensive in a small amount and a wide variety as compared with the pressure-sensitive adhesive die-cut seal by the conventional method, and the required die-cut pattern is very many. But it can be easily handled. In addition, the manufacturing method of the present invention does not require a mold for each different planar shape even if there are many types of die-cut seals, and the manufacturing cost can be set at a low cost.

  The die-cut seal produced by the method of the present invention has a relatively thin and soft resin layer, and can be bonded not only to a flat adherend but also to a curved surface and a refractive surface close to a right angle. If this die-cut seal is easily broken when peeled off from the release film, a peelable overlapping film is attached to the seal sheet, and when the die-release seal peels off from the release film. Hard to tear. In this die-cut seal, if the resin layer is white, the color of the adherend is concealed to enhance the surface pattern, and if the resin layer is a chromatic color other than white, a design change is imparted to the surface pattern. it can.

  The die-cut seal manufacturing method according to the present invention can be manufactured quickly and inexpensively by making all layers except the image layer with the same screen plate. In this manufacturing method, when a UV curable resin is used for the resin layer and the clear layer, the layer can be cured in a short time only by irradiation with ultraviolet rays. For this reason, in this manufacturing method, it is not necessary to heat in a high-temperature drying furnace for a long time for drying after application of the resin layer, etc., and the release film and release paper become full of molds by high-temperature heating. The seal does not become defective.

It is a schematic plan view which shows an example of the screen plate used by this invention. It is a schematic plan view which shows the release film which apply | coated the adhesion layer. It is a schematic plan view which shows the release film in which the multi-color pattern die-cut seal was formed. It is a schematic side view which shows an example of the inkjet printer for forming a multicolor pattern. It is a schematic sectional drawing which shows the die-cut seal | sticker laminated | stacked on the release film. It is a schematic sectional drawing which shows another example of the die-cut seal | sticker laminated | stacked on the release film.

  As shown in FIG. 5, an adhesive layer 3, a resin layer 5, and a glossy or matte clear layer 6 are laminated on a release film 2 or a release paper in a die-cut seal 1 manufactured by the method of the present invention. ing. In the method of the present invention, the pressure-sensitive adhesive layer 3, the resin layer 5, and the clear layer 6 are formed by a screen plate 8 (FIG. 1) having the same transmission image 7. The screen plate 8 is formed with one or a plurality of complex planar-shaped transmission images 7, and the transmission images may be developed and solidified by a direct or indirect photoengraving method. The screen plate 8 is usually 50 to 200 mesh, for example, 100 mesh.

  In order to manufacture the die-cut seal 1, as shown in FIG. 2, first, the adhesive layer 3 is formed on the release film 2 by screen printing. At this time, the release film 2 to be used may be any of synthetic paper, natural paper, laminated paper, plastic film such as polyester, polyethylene, polypropylene, polyamide, and polyvinyl chloride, cellophane, and laminated cloth. The thickness of the release film 2 is usually 15 to 150 μm, preferably 20 to 75 μm. A release layer (not shown) provided on the surface of the release film 2 is made of a known thermoplastic resin such as a cellulose-based, polyamide-based, or acrylic resin, and is formed by coating or screen printing. The thickness of this release layer is usually 0.5 to 10 μm.

  The pressure-sensitive adhesive layer 3 on the release film 2 is generally made of a solvent-type pressure-sensitive adhesive, and the thickness may be adjusted according to the material and shape of the adherend, and the solvent may be volatilized by heating after application. The pressure-sensitive adhesive layer 3 is generally a re-peeling type that adheres to an adherend with low pressure such as finger pressure and can be easily peeled off without leaving a trace on the adherend. There are cases. The pressure-sensitive adhesive layer 3 is usually preferably provided by screen printing once or several times, and the thickness thereof is usually 10 to 200 μm.

  Examples of the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 3 include acrylic, rubber-based, polyurethane-based, and polyvinyl ether-based pressure-sensitive adhesives. If necessary, an additive such as a filler, white ink, metal powder such as aluminum powder, a tackifier, a leveling agent, and an antifoaming agent may be added to the adhesive. In the case of the permanent adhesion type, for example, a vinyl group may be introduced into an acrylic polymer, or a crosslinking agent such as isocyanate may be added for crosslinking. A preferable value of the adhesive strength of the adhesive layer 3 varies depending on the size of the individual seal, the type of adherend, and the like. Generally, the adhesive strength is about 120 to 2000 g / 25 mm width, preferably about 200 to 500 g / 25 mm width, as measured according to JIS-Z0237.

  On the adhesive layer 3, a resin layer 5 having the same planar shape as that of the adhesive layer is laminated by screen printing using the same screen plate 8. The resin layer 5 preferably contains a resin having a high affinity with the resin contained in the image layer 12 in order to suppress adhesion and reinforce the film of the image layer 12 and increase the stretchability. The resin layer 5 may be transparent or colored so that the ground color of the adherend is not transmitted. Depending on the case where the ground color of the adherend is dark, white ink is added to provide a hiding power. Preferably, it is increased, for example containing titanium dioxide as a white ink. If the resin layer 5 is white, the reproducibility of the image layer 12 (FIG. 3) having a multicolor pattern on the surface is enhanced.

  In addition, the resin layer 5 may be provided with a chromatic resin layer in order to give a change to the surface pattern. The resin layer 5 has almost the same composition as that of the white layer, such as cream, light yellow, light green, light red, and light blue. Is possible. The thickness of the resin layer 5 is usually 10 to 120 μm by screen printing, and when the resin layer 5 is thickened, the screen printing may be repeated 4 to 5 times to obtain a thickness exceeding 80 μm. If the resin layer 5 has flexibility and cushioning properties with a certain thickness, the transfer performance of the die-cut seal 1 is improved.

  It is preferable to use a UV curable resin for the adhesive layer 3, and the UV curable resin is cured by irradiating ultraviolet rays each time it is laminated by screen printing. The UV curable resin may be either a cationic polymerization type such as epoxy, oxetane, or vinyl ether, or a radical polymerization type such as acrylate or unsaturated polyester. In the case of a suitable cationic polymerization type in the UV curable resin, the curing rate is accelerated by low-temperature heating depending on the temperature, and it is preferable to heat to about 30 to 70 ° C. during ultraviolet irradiation. Since the cationic polymerization type has a curing shrinkage of 2 to 4% and is less preferable than the radical polymerization type in which it is 5 to 10%. The cationic polymerization type has a weak odor and low skin irritation compared to the radical polymerization type.

  The resin used for the resin layer 5 can also be a solvent volatile type, for example, polyester resins such as fumaric acid / etherified diphenol polyester, epoxy resins, polyurethane resins, silicon resins, butyral resins, low Polyolefin resins such as molecular weight polyethylene, ethylene-vinyl acetate copolymer, low molecular weight polypropylene, and fluorine resins such as polyamide resin, polyvinyl alcohol resin, and polyvinylidene fluoride. Further, usable resins include polystyrene, hydrogenated styrene resin, styrene-isobutylene copolymer. Polystyrene resins such as styrene-butadiene copolymer, styrene-butadiene-chlorinated paraffin copolymer, polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate, polyglycidyl methacrylate, methyl methacrylate-butyl methacrylate copolymer, ethyl methacrylate -Acrylic resin such as acrylic acid copolymer, styrene-n-butyl methacrylate copolymer, styrene-diethylaminoethyl methacrylate copolymer, styrene-methyl methacrylate copolymer, styrene-glycidyl methacrylate copolymer, styrene-methyl methacrylate -N-butyl acrylate copolymer, styrene-methyl methacrylate-butyl acrylate-N-ethoxymethyl acrylamide copolymer, steel -N-butyl methacrylate-maleic anhydride copolymer, styrene- (meth) acrylic ester copolymer resin such as styrene-n-butyl methacrylate-acrylic acid copolymer, terpene resin, imide resin, ketone resin , Ethyl cellulose, rosin, alkyd resin, and the like.

  As shown in FIG. 3, an image layer 12 having a multicolor pattern is formed on the resin layer 5 by the ink jet printer 10 (FIG. 4), and the print pattern embodied by the image layer is a single color by the ink jet printer 10. Or a multi-colored complex display. The ink jet printer 10 includes an ink jet printer of a thermal method (vapor bubble injection), a piezoelectric method, a continuous (ultrasonic) method, or the like. The ink used for the image layer 12 is an on-demand printing method that can be applied to the user's request by being applied by the inkjet printer 10 that does not use a template. The image layer 12 is firmly bonded to the resin layer 5 and needs to be easy to form a film when dried, and its thickness is not specified.

  When the image layer 12 is formed by the ink jet printer 10, the image is made of ink that can be used for ink jet printing. For example, this ink is an oil-based ink and is preferably based on a solvent having a high boiling point in order to prevent clogging of the head. High boiling point solvents include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, hexylene glycol, polyethylene glycol, polypropylene glycol, Monoetherified products, dietherified products, and esterified products such as ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, and dipropylene glycol monomethyl ether, polyalkylene glycols such as polyethylene glycol and polypropylene glycol, and paraffinic hydrocarbons such as glycerin And petroleum naphtha solvents, naphthene hydrocarbons, aromatic hydrocarbons and the like.

  For this oil-based ink, a solvent having higher volatility may be mixed with the above-mentioned solvent or added alone in order to increase the quick drying property. Examples of such solvents include alkyl alcohols such as ethyl alcohol and isopropyl alcohol, ketones such as acetone and methyl ethyl ketone, aromatic hydrocarbons such as toluene and xylene, esters such as ethyl acetate, dimethylformamide and dimethylacetamide. And ethers such as dioxane and tetrahydrofuran.

  In the inkjet printer 10, known inks and dyes can be used as the colorant for the ink, and the above-described wet toner colorants can be used as the ink. This dye is used in a form in which a water-insoluble oil-soluble dye or disperse dye is dispersed or dissolved in a solvent. Water-insoluble dyes include, for example, diarylmethane, triarylmethane, thiazole, methine, azomethine, xanthine, oxazine, azo and azo derivatives, anthraquinone derivatives, quinophthalone derivatives, spirodipyrans, isodoses. Linosbiropyran and fluoran dyes.

  Solvents for oil-based inks may contain soluble or insoluble resins in order to improve dispersibility and fixability. This resin includes polyvinyl alcohols, polyvinyl pyrrolidone, ethylene resins such as ethylene-vinyl acetate copolymers, acrylic resins such as polyacrylic acid and acrylic acid-acrylonitrile copolymers, vinyl acetate-acrylate copolymers, Vinyl acetate copolymer resin such as vinyl acetate-fatty acid vinyl ethylene copolymer, protein, natural rubber, glucoside, cellulose derivative, polyamide resin, rosin and rosin ester, terpene phenol resin, alkyd resin, styrene resin Melamine resin and the like.

  Furthermore, as surfactants, antiseptics, antifungal agents, pH adjusters, antifoaming agents, UV absorbers, viscosity adjusters, surface tension adjusters, polyoxyethylene compound fatty acid ester types, polyethylene oxide condensation types, etc. Anionic surfactants such as nonionic surfactants, higher fatty acid salts, higher alkyl dicarboxylates, higher alcohol sulfates, higher alkyl sulfonates, condensates of higher fatty acids and amino acids, sulfosuccinates, naphthenates A cationic surfactant such as a fatty acid amine salt, a quaternary ammonium salt, a sulfonium salt or a phosphonium salt, or an amphoteric surfactant such as a betaine type may be added as necessary.

  In the inkjet printer 10, hot melt ink or UV curable ink is preferably used in order to form a clear image on the resin layer 5. A hot melt ink is a solid or a high-viscosity liquid at normal temperature, and is melted and reduced in viscosity by heating during recording.

  As the solvent for the hot melt ink, waxes such as paraffin wax, carnapa wax, candelilla wax, wood wax, beeswax, lanolin, paraffin fuchs derivative, microcrystalline wax, α-olefin maleic anhydride copolymer wax are used. Other solvents include fatty acids such as stearic acid, myristic acid and palmitic acid, higher alcohols such as stearyl alcohol and polyvinyl ether, polyhydric alcohol fatty acid esters such as sorbitan monostearate, polyolefin resins and epoxy resins. And polyamide resins, polyester resins, urethane resins and the like.

  The UV curable ink contains a prepolymer, a monomer, a photoinitiator and a colorant as main components and is immediately cured by irradiation with ultraviolet rays. The prepolymer may be any prepolymer such as polyester acrylate, polyurethane acrylate, epoxy acrylate, polyether acrylate, oligo acrylate, alkyd acrylate, polyol acrylate, and silicon acrylate. Suitable monomers include vinyl monomers such as styrene and vinyl acetate, monofunctional acrylic monomers such as n-hexyl acrylate and phenoxyethyl acrylate, diethylene glycol diacrylate, 1,6-hexanediol diacrylate, hydroxypiperic acid ester neopentyl glycol di Examples thereof include polyfunctional acrylic monomers such as acrylate, trimethylolpropane triacrylate, and dipentaerystol hexaacrylate. These prepolymers and monomers are used alone or in combination of two or more.

  Photopolymerization initiators in UV curable inks are isobutyl benzoin ether, isopropyl benzoin ether, benzoin ethyl ether, benzoin methyl ether, 1-phenyl-1,2-propadion-2-oxime, 2,2-dimethoxy-2-phenyl Acetophenone, benzyl, hydroxycyclohexyl phenyl ketone, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzophenone, chlorothioxanthone, 2-chlorothioxanthone, isopropylthioxanthone, 2-methylthioxanthone, chlorine substitution Examples thereof include benzophenone and halogen-substituted alkyl-allyl ketone, which are appropriately selected and used for obtaining predetermined curing characteristics and recording characteristics. If desired, photoinitiators such as aliphatic amines and aromatic amines, photosensitizers such as thioxanthone, and the like may be added.

  The image layer 12 has a thickness of about 5 to 10 μm, and is a color photograph as shown in FIG. 3, a handling picture display, a brand name, a production place or manufacturer name, a graphic trademark, a character design, and the like. Multi-color display, so versatility is high. The image layer 12 is a color layer of an oil-based ink containing an ink and a solvent formed by the ink jet printer 10, and since only a certain degree of stretchability can be imparted to the color layer, cracks and peeling do not occur after the seal transfer. In addition, it is necessary to appropriately suppress the stretchability of the resin layer 5.

  If some or all of the image layer 12 is added with phosphorescent ink, luminescent ink, fluorescent ink, fragrance ink, mirror ink, nocturnal phosphorescent ink, photochromic ink, etc., such as nighttime luminescence or specular reflection Special effects can be obtained. Phosphorescent ink contains a pigment that has the property of absorbing and accumulating light rays such as the sun and electric light and gradually emitting it to emit light, and can absorb and emit light any number of times. N nightlight phosphorescent ink has a significantly higher luminous and luminous effect than phosphorescent ink. The photochromic ink develops green, yellow, blue, etc. when exposed to sunlight, and returns to colorless when the sunlight is blocked.

  The uppermost glossy or matte clear layer 6 (FIG. 5) is a transparent or translucent resin film that improves the design of the die-cut seal 1 and protects the image layer 12 from friction and impact. Protects from chemical effects such as chemical adhesion and solvent adhesion. The clear layer 6 is made of a polyamide-based, polyester-based, acrylic-based resin or the like or a mixed resin obtained by appropriately combining these resins, and further contains a glossy gloss ink or a matte mat ink. Even if the clear layer 6 is a UV curable resin, it includes a reactive resin such as an isocyanate resin to cause a crosslinking or partial crosslinking reaction before and after printing or a crosslinking reaction by not including a reactive resin. It does not have to be. The clear layer 6 is formed by screen printing, and its thickness is usually 5 to 30 μm.

  In the clear layer 6, as the known gloss ink, for example, vinyl-based inks such as a product name manufactured by Teikoku Ink Co., Ltd .: Sericol EG screen ink (also known as polyester gloss ink), a product name manufactured by Seiko Advance Co., Ltd .: SG700 series, etc. May be used. Further, as a known mat ink, for example, an epoxy resin having an average molecular weight of 1000 to 6000, a highly etherified amino resin, a saturated polyester resin, hydrophilic silica, and a sulfonic acid compound are contained. As the epoxy resin, it is preferable to use a bisphenol A type epoxy resin or a bisphenol F type epoxy resin having a number average molecular weight of 1000 to 6000, and trade name: JER1004 manufactured by Japan Epoxy Resin, trade name: AER6099 manufactured by Asahi Kasei Epoxy Chemical brand name: Epicron 7050 and the like can be exemplified. Examples of the polyester resin include Toyobo brand names: Byron 200, Byron GK250, Unitika brand names: Elitel UE-3200, and the like. In addition, the mat ink includes epoxy resin, ketone resin, rosin-modified phenol resin, petroleum resin, and the like as resin components, and further includes thermally expandable microcapsules having an average particle diameter of 0.8 to 5 μm in the whole ink. You may contain 30 mass%.

  The overlapping film 14 (FIG. 6) is desirably adhered to the entire surface of the seal sheet 16 having the die-cut seal 1 when the clear layer 6 is generally hard and difficult to transfer. A positioning line may be further printed on the film 14. The adhesion force between the overlapping film 14 and the image layer 12 needs to be stronger than the adhesion force between the release film 2 and the adhesive layer 3. The film 14 is preferably a soft material so that the transfer force can be easily transmitted to the resin layer 5 and the adhesive layer 3 during pressure-sensitive transfer, and polypropylene or polyvinyl chloride is used. The overlapping film 14 may be inexpensive because it protects the clear layer 6 and the image layer 12 when the die-cut seal 1 is not used and is discarded after pressure-sensitive transfer. The thickness of the film 2 is usually 20 to 150 μm.

  Next, the present invention will be described based on examples, but the present invention is not limited to the examples. As illustrated in FIG. 1, the screen plate 8 used in the present invention has a plurality of complex transmission images 7 formed by a photolithography method. The slender tactile sensation of the butterfly, leg, blade tip and the like in the transmission image 7 are actually connected to the blade main body thickly so as not to be damaged when the seal is peeled, unlike the illustrated one.

  In FIG. 2, a release paper having a thickness of 25 μm is used as the release film 2. The pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 3 is a self-crosslinking polyacrylic ester copolymer. Each adhesive layer 3 is applied onto a release paper by screen printing using a 100-mesh screen plate 8, and the solvent is volatilized by heating for several hours after the application. The thickness of the pressure-sensitive adhesive layer 3 after printing once is about 20 μm.

  The resin layer 5 is printed 30 times on the adhesive layer 3 using UV-curable epoxy resin added with titanium dioxide by using the same screen plate 8 of 100 mesh, and irradiating ultraviolet rays for each lamination. When cured at 0 ° C., the planar shape of the obtained resin layer 5 is the same as that of the adhesive layer (see FIG. 5). The resin layer 5 is white capable of concealing the ground color of the adherend, and the thickness after the third printing is about 60 μm.

  On each resin layer 5, as illustrated in FIG. 3, an image layer 12 having a thickness of about 6 μm is formed by an inkjet printer 10 (FIG. 4) (see FIG. 5). It is a photographic design. FIG. 4 schematically shows an example of the ink jet printer 10 to be used. When the sticker layer 3 and the resin layer 5 are formed in a roll shape, the seal sheet 16 is printed in the horizontal direction while traveling in the direction of the arrow in FIG.

  The ink jet printer 10 includes a print head 18 and a tape transport roller (not shown). Both the head and the transport mechanism are controlled by a CPU 20 constituting a control mechanism, and a hard disk 22 storing image data is transmitted via a control computer 24. Connected to the CPU 20. Although not shown, the inkjet printer 10 is connected to a control computer 24 with a monitor and a keyboard operated by an operator.

  In the print head 18, ink is printed from the ink tank 26 on the surface of the seal sheet 16 from the nozzle 28, and a plurality of nozzles and ink tanks are installed according to the number of colors if printing is multicolor. The print head 18 is a fixed type or a scanning type, and in the case of the fixed type, the nozzle 28 exists in the entire width of the seal sheet 16, and the seal sheet 16 continuously travels by a conveying roller (not shown). At the same time, ink is ejected. The motor that rotates the pair of transport rollers is under the control of the CPU 20. In the scanning print head, the seal sheet 16 stops after a fixed amount of travel by the conveying roller, and the print head moves between the horizontal widths during the stop.

  The nozzles 28 are individually controlled by the CPU 20, which receives instructions from the control computer 24. The control computer 24 may include a memory that stores a code corresponding to desired image data, and a plurality of image images may be stored in the memory of the control computer 24 in advance. The CPU 20 controls the print head 18 in accordance with a print command transmitted from the control computer 24.

  In the ink jet printer 10, the ink in the ink tank 26 is an oil-based ink, and it is preferable to use a high boiling point solvent as a base in order to prevent the nozzle 28 from clogging. For this oil-based ink, a solvent having higher volatility may be mixed with the above-mentioned solvent or added alone in order to increase the quick drying property. Known inks and dyes are used as the colorant for the ink. As this dye, a water-insoluble oil-soluble dye is used in a form dispersed or dissolved in a solvent, and the water-insoluble dye is, for example, a diarylmethane-based, triarylmethane-based or thiazole-based dye.

  As shown in FIG. 5, the glazing clear layer 6 is laminated on the resin layer 5, that is, the image layer 12 and dried. The glazing clear layer 6 is made of a polyester resin to which Sericol EG screen ink (trade name), which is a gloss ink, is added. The clear layer 6 is laminated by the same screen plate 8 of 100 mesh and dried, and the thickness of the obtained clear layer 6 is about 10 μm.

  Since the resin layer 5 is relatively tough, the die-cut seal 1 is hardly damaged when peeled off from the release paper, and can be stuck on the adherend with only finger pressure. When peeling after using the die-cut seal 1, the resin layer 5 is tough, so that it can be peeled cleanly when peeled slowly. For the adhesive layer 3, a polyurethane-based resin that has chemical resistance and does not easily peel off even when there is moisture may be used.

  In a 100-mesh screen plate 8 similar to that in Example 1, a large number of floral transmission images are formed by photolithography. An adhesive layer 3 made of the same material as in Example 1 is formed on a release paper, and the planar shape of the adhesive layer is a number of floral patterns. In addition, as the resin layer 5, the same screen plate 8 was used, and a UV curable epoxy resin added with titanium dioxide was printed twice and irradiated with ultraviolet rays for each lamination to be cured at 30 to 50 ° C. The planar shape of the layer 5 is the same as that of the adhesive layer. The resin layer 5 has a thickness after printing twice of about 40 μm. On the resin layer 5, a multicolor pattern floral image layer is formed by the inkjet printer 10.

  Next, the matte clear layer 6 having a thickness of about 20 μm is laminated on the resin layer 5, that is, the image layer 12 using the same screen plate 8. The matte ink used for the matte clear layer 6 comprises a bisphenol A type epoxy resin having an average molecular weight of 3000, a highly etherified amino resin, a saturated polyester resin (trade name: Byron 200), hydrophilic silica, a sulfonic acid compound, and the like. The clear layer 6 is laminated by a 100-mesh screen plate 8 and dried.

  Further, an overlapping film 14 of polypropylene having a thickness of 30 μm is stuck on the entire surface of the seal sheet 16 having the die-cut seal 1. Further, a number of appropriate positioning lines are printed on the film 14 with black ink. The overlapping film 14 has a stronger adhesion with the image layer 12 than the adhesion between the release paper and the adhesive layer 3, and is soft so that the transfer force is easily transmitted to the resin layer 5 and the adhesive layer 3 during pressure-sensitive transfer. .

  In the die-cut seal of Example 2, the release paper is first peeled off, and the film 14 including the individual seals may be cut into an appropriate size. After the seal is accurately positioned based on the positioning line of the film 14, the adhesive layer 3 is adhered to the adherend, and then the film 14 is peeled off. Since the overlapping film 14 is interposed, even if the resin layer 5 is soft, this die-cut seal is less likely to stretch or break when peeled from the release paper, and the sticking of the seal is easy. Since this die-cut seal is relatively thin and soft, it can be bonded on a curved surface and a refractive surface close to a right angle.

DESCRIPTION OF SYMBOLS 1 Die-release seal 2 Release film 3 Adhesive layer 5 Resin layer 6 Glossy or matte clear layer 8 Screen plate 10 Inkjet printer 12 Image layer 14 Overwrapping film 16 Seal sheet

Claims (4)

  In screen printing, a screen plate on which one or a plurality of complex transmission images are formed is used, and an adhesive layer is applied onto the release film by screen printing using this screen plate, and further screen printing is performed using the same screen plate. A transparent or colored resin layer having the same planar shape is laminated on the adhesive layer by using an ink jet printer to form a multicolored pattern on the resin layer, and further, the same planar shape is obtained by screen printing using the same screen plate. A method of manufacturing a die-cut seal in which a glossy or matte clear layer is laminated on an adhesive layer.   The manufacturing method according to claim 1, wherein in order to laminate a resin layer having a predetermined thickness, screen printing is performed a plurality of times using the same screen plate for the resin layer.   3. The method according to claim 1, wherein the resin layer is made of an ultraviolet curable resin, and the resin layer is cured in a few seconds in response to the light energy of the ultraviolet rays, so that no drying time is required.   The manufacturing method according to claim 1, wherein a peelable overlapping film is attached to the seal sheet in order to prevent the die-cut seal from being damaged at the time of peeling.

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