WO2015064589A1 - ラベルおよびそのラベルの製造方法 - Google Patents
ラベルおよびそのラベルの製造方法 Download PDFInfo
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- WO2015064589A1 WO2015064589A1 PCT/JP2014/078662 JP2014078662W WO2015064589A1 WO 2015064589 A1 WO2015064589 A1 WO 2015064589A1 JP 2014078662 W JP2014078662 W JP 2014078662W WO 2015064589 A1 WO2015064589 A1 WO 2015064589A1
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- 239000011521 glass Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- ANJPRQPHZGHVQB-UHFFFAOYSA-N hexyl isocyanate Chemical compound CCCCCCN=C=O ANJPRQPHZGHVQB-UHFFFAOYSA-N 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- NIZHERJWXFHGGU-UHFFFAOYSA-N isocyanato(trimethyl)silane Chemical compound C[Si](C)(C)N=C=O NIZHERJWXFHGGU-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- HNHVTXYLRVGMHD-UHFFFAOYSA-N n-butyl isocyanate Chemical compound CCCCN=C=O HNHVTXYLRVGMHD-UHFFFAOYSA-N 0.000 description 1
- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical compound C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 description 1
- 150000004780 naphthols Chemical class 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical group 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
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- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
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- 125000005628 tolylene group Chemical group 0.000 description 1
- DFJSZWHUOKADCX-UHFFFAOYSA-N triisocyanato(methyl)silane Chemical compound O=C=N[Si](C)(N=C=O)N=C=O DFJSZWHUOKADCX-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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- 150000003739 xylenols Chemical class 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
- B31D1/02—Multiple-step processes for making flat articles ; Making flat articles the articles being labels or tags
- B31D1/021—Making adhesive labels having a multilayered structure, e.g. provided on carrier webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
- B31D1/02—Multiple-step processes for making flat articles ; Making flat articles the articles being labels or tags
- B31D1/027—Multiple-step processes for making flat articles ; Making flat articles the articles being labels or tags involving, marking, printing or coding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/72—Cured, e.g. vulcanised, cross-linked
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/404—Multi-coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2519/00—Labels, badges
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/0208—Indicia
- G09F2003/0211—Transfer or thermo-sensitive
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/0276—Safety features, e.g. colour, prominent part, logo
Definitions
- the present invention relates to a label and a method for producing the label, and is suitable for printing using a laser.
- an engraved layer comprising an ultraviolet curable lacquer is applied by printing on the back support film
- a base layer comprising an electron beam curable lacquer is applied on the engraved layer
- an electron beam A label that is cured by irradiation has been proposed (see Patent Document 1).
- the label prints information by removing the desired location on the engraved layer with a laser.
- the label of Patent Document 1 may be insufficiently cured because ultraviolet rays or electron beams do not reach the deep part of each layer.
- each layer of the label may be peeled off or a crack may occur.
- an object of the present invention is to provide a label having excellent durability and a method for producing the label, which can suppress the separation or cracking of each layer regardless of the thickness of the label layer.
- the label of the present invention includes a first colored layer, a second colored layer having a color different from the color of the first colored layer, and a color different from the colors of the first colored layer and the second colored layer.
- the marking layer is fitted so as to have an exposed surface on one surface of the first colored layer, the second colored layer is laminated on the other surface of the first colored layer, and the first colored layer.
- the cure shrinkage rate of the layer is characterized by being larger than the cure shrinkage rate of the marking layer.
- the first colored layer sandwiches the marking layer by curing. Therefore, the adhesion between the first colored layer and the marking layer can be enhanced regardless of the thickness of the first colored layer or the marking layer. In this way, it is possible to suppress the separation between the first colored layer and the marking layer and the occurrence of cracks, thereby providing a label having excellent durability.
- the label of this invention is excellent in the adhesiveness of a 1st colored layer and a marking layer in this way, it contributes to prevention of the forgery which removes a marking layer, Moreover, a marking layer and a 1st colored layer are removed with a laser. In the case where information is printed by removing a desired place and exposing the second colored layer, it is possible to prevent the marking layer from peeling off.
- the area ratio of the exposed surface of the marking layer is preferably 1% or more and 50% or less with respect to the surface area of one surface of the label. That is, for example, in FIG. 1, it is preferably 1% or more and 50% or less with respect to the area of one surface F1 including the exposed surfaces of the first colored layer 10 and the marking layer 30.
- the area ratio of the exposed surface of the labeling layer is more preferably 1% or more and 40% or less with respect to the surface area of one surface of the label. More preferably, it is 1% or more and 30% or less.
- the inventors of the present invention have an adhesion ratio between the first colored layer and the marking layer by setting the area ratio of the exposed surface of the marking layer to 1% or more and 50% or less with respect to the surface area of one surface of the label. Was found to be even higher. Moreover, the present inventors set the area ratio of the exposed surface of the marking layer to 1% or more and 40% or less with respect to the surface area of the one surface of the label, so that the first colored layer and the marking layer are formed. It has been found that cracks are further suppressed in addition to the further increase in adhesion.
- the crosslinking agent used for the first colored layer reacts with the functional group of the resin contained in the marking layer.
- the cross-linking reaction occurs between the first colored layer and the marking layer, so that the adhesion of the layer can be further enhanced.
- the crosslinking agent used for the second colored layer reacts with the functional group of the resin contained in the first colored layer and the functional group of the resin contained in the marking layer.
- the adhesion between the second colored layer and the first colored layer can be further improved.
- the crosslinking agent used for the second colored layer penetrates into the first colored layer, and the adhesion between the first colored layer and the marking layer can be further enhanced.
- the label manufacturing method of the present invention includes a marking layer forming step of forming a marking layer by placing a resin coating on one surface of a substrate, and a color different from the resin coating used in the marking layer forming step.
- the first colored layer sandwiches the marking layer by curing. . Therefore, the adhesion between the first colored layer and the marking layer can be enhanced regardless of the thickness of the first colored layer or the marking layer. In this way, it is possible to suppress the separation between the first colored layer and the marking layer and the occurrence of cracks, thereby providing a label having excellent durability.
- the present invention provides a label having excellent durability and a method for producing the label, in which each layer of the label is not peeled off or cracked regardless of the thickness of the label layer. it can.
- FIG. 1 is a diagram showing a cross section of a label in the present embodiment.
- the label 1 of the present embodiment includes the first colored layer 10, the second colored layer 20, and the marking layer 30 as main components.
- the first colored layer 10 has one surface F ⁇ b> 1 including the exposed surface of the marking layer 30 and the other surface F ⁇ b> 2 in contact with the second colored layer 20.
- the first colored layer 10 is formed from, for example, a thermosetting resin paint containing a resin, a crosslinking agent, a colorant, and an organic solvent. If desired, the resin paint may contain stabilizers, flame retardants, antioxidants, antistatic agents, fungicides, lubricants, fillers, and the like.
- the first colored layer 10 is a layer having a different color from the second colored layer 20 and the marking layer 30.
- Examples of the resin used for the resin coating include acrylic resin, epoxy resin, and urethane resin.
- the colorant used in the resin coating is not particularly limited, but a colorant that can be removed by laser light irradiation and can be used for a long period of time and has durability are preferable.
- a colorant that can be removed by laser light irradiation and can be used for a long period of time and has durability are preferable.
- it can be selected from Color Index 3rd Edition (1971) and Supplements (1975) published by The Society of Dies and Colorists, and pigments such as inorganic, organic, azo, condensed polycyclic and metal complex salts can be used. Can be mentioned.
- organic pigment zinc white, zinc sulfide, titanium dioxide, calcium carbonate, silica, muscovite, carbon black, iron black, iron oxide yellow, titanium-antimony-nickel oxide, aluminum powder
- organic pigments include, but are not limited to, aniline black and perylene black.
- the first colored layer 10 is a layer having a larger cure shrinkage rate than the marking layer 30.
- the crosslinking agent used for the resin coating material of the first colored layer is such that molecules are eliminated during the crosslinking reaction.
- crosslinking agents include melamine crosslinking agents, benzoguanamine crosslinking agents, urea crosslinking agents, and metal chelate crosslinking agents.
- Melamine-based crosslinking agents, benzoguanamine-based crosslinking agents, and urea-based crosslinking agents have, for example, hydroxyl groups or imino groups as functional groups. These functional groups generate water during the crosslinking reaction, and the generated water is eliminated from the reaction system by drying or the like.
- the curing shrinkage rate is increased in the crosslinking reaction using a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, or a urea-based crosslinking agent.
- the metal chelate crosslinking agent has a metal and a chelating agent. During the crosslinking reaction of the metal chelate crosslinking agent, the chelating agent is desorbed and released outside the reaction system such as in the atmosphere. Since the volume is reduced as much as the chelating agent is eliminated, curing shrinkage occurs in the cross-linking reaction using the metal chelate cross-linking agent.
- melamine-based crosslinking agents are preferable because they have a higher curing shrinkage than metal chelate-based crosslinking agents, and melamine-based crosslinking agents are more preferable.
- the melamine-based crosslinking agent examples include melamine, a methylolated melamine derivative obtained by condensing melamine and formaldehyde, a compound partially or completely etherified by reacting a methylolated melamine with a lower alcohol, or a mixture thereof. Etc. can be used.
- a melamine type crosslinking agent either a monomer or the condensate which consists of a multimer more than a dimer may be sufficient, and these mixtures may be sufficient. More specifically, imino group type methylated melamine resin, methylol group type melamine resin, methylol group type methylated melamine resin, and completely alkyl type methylated melamine resin are exemplified.
- benzoguanamine-based crosslinking agent examples include benzoguanamine, a methylolated benzoguanamine derivative obtained by condensing benzoguanamine and formaldehyde, a compound partially or completely etherified by reacting a methylolated benzoguanamine with a lower alcohol, or a mixture thereof. Etc. can be used.
- the benzoguanamine-based crosslinking agent may be either a monomer or a condensate composed of a multimer of dimers or a mixture thereof. More specifically, a butylated benzoguanamine resin, a methylolated benzoguanamine resin and the like can be mentioned.
- urea-based crosslinking agents examples include methylolated urea derivatives obtained by condensing urea and formaldehyde, compounds partially or completely etherified by reacting methylolated urea with a lower alcohol, or mixtures thereof. Can be used. Further, the urea-based crosslinking agent may be either a monomer or a condensate composed of a dimer or higher polymer, or a mixture thereof. More specific examples include butylated urea resins and methylolated urea resins.
- metal chelate crosslinking agents include aluminum chelate crosslinking agents, zirconium chelate crosslinking agents, titanium chelate crosslinking agents, chromium chelate crosslinking agents, cobalt chelate crosslinking agents, copper chelate crosslinking agents, and iron chelate crosslinking agents.
- nickel chelate crosslinking agent nickel chelate crosslinking agent, vanadium chelate crosslinking agent, zinc chelate crosslinking agent, indium chelate crosslinking agent, calcium chelate crosslinking agent, magnesium chelate crosslinking agent, manganese chelate crosslinking agent, yttrium chelate crosslinking agent,
- a cerium chelate crosslinking agent, a strontium chelate crosslinking agent, a barium chelate crosslinking agent, a molybdenum chelate crosslinking agent, a lanthanum chelate crosslinking agent, a tin chelate crosslinking agent, etc. can be used, preferably an aluminum chelate crosslinking agent, zirconium Rate-based crosslinking agent, a titanium chelate crosslinking agent. More preferred is an aluminum chelate cross-linking agent.
- the second colored layer 20 is laminated on a surface F2 on the opposite side to the one surface F1 of the first colored layer 10 including the exposed surface of the marking layer 30, and has a different color from the first colored layer 10 and the marking layer 30.
- the 2nd colored layer 20 is formed from the thermosetting resin coating material containing resin, a crosslinking agent, a coloring agent, and an organic solvent, for example. If desired, stabilizers, flame retardants, antioxidants, antistatic agents, fungicides, lubricants, fillers, and the like may be included. In the case of this embodiment, it is preferable that the resin of the resin coating and the crosslinking agent are mixed immediately before coating.
- Examples of the resin used for the resin coating include acrylic resin, epoxy resin, and urethane resin.
- the colorant used in the resin coating is not particularly limited, but a colorant that can be removed by laser light irradiation and can be used for a long period of time and has durability are preferable.
- a colorant that can be removed by laser light irradiation and can be used for a long period of time and has durability are preferable.
- it can be selected from Color Index 3rd Edition (1971) and Supplements (1975) published by The Society of Dies and Colorists, and pigments such as inorganic, organic, azo, condensed polycyclic and metal complex salts can be used.
- examples include inorganic pigments such as zinc white, zinc sulfide, titanium dioxide, calcium carbonate, silica, muscovite, carbon black, iron black, and organic pigments such as aniline black and perylene black.
- inorganic pigments such as zinc white, zinc sulfide, titanium dioxide, calcium carbonate, silica, muscovite, carbon black, iron black, and organic pigments such as ani
- a cross-linking agent in which the cure shrinkage rate of the second colored layer 20 is smaller than the cure shrinkage rate of the first colored layer 10 is preferable. Since the curing shrinkage rate of the second colored layer 20 is small and the cure shrinkage rate of the first colored layer 10 is small, the surface of the second colored layer 20 opposite to the first colored layer 10 side is not shrunk on a hard base material or the like. When in close contact, the stress due to the difference in shrinkage between the first colored layer 10 and the base material can be relaxed, and the occurrence of cracks and the like can be suppressed.
- an isocyanate type crosslinking agent for example, an isocyanate type crosslinking agent, an epoxy type crosslinking agent, an acid anhydride type crosslinking agent, etc. are mentioned. Further, from the viewpoint of improving the adhesion between the second colored layer 20 and the first colored layer 10 and the adhesion or durability between the first colored layer 10 and the marking layer 30, an isocyanate-based crosslinking agent is preferable.
- the isocyanate-based crosslinking agent has an isocyanate group as a functional group. The isocyanate group undergoes a crosslinking reaction by reacting with a functional group having active hydrogen such as a hydroxyl group or an amino group contained in the resin included in the marking layer 30 or the first colored layer 20.
- the curing shrinkage rate is smaller than that of a resin containing a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, a urea-based crosslinking agent, or a metal chelate-based crosslinking agent.
- the resin contains a carboxyl group as a functional group or when there is water as an impurity, the isocyanate group reacts with them to generate carbon dioxide. In this case, desorption of carbon dioxide occurs and the curing shrinkage rate increases.
- the curing shrinkage ratio is usually smaller than that of a resin containing a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, a urea-based crosslinking agent, or a metal chelate-based crosslinking agent.
- an isocyanate group may be bonded to an organic compound having about 1 to 1000 carbon atoms.
- isocyanate-based crosslinking agents from the viewpoint that the label does not turn yellow over time, hexamethylene diisocyanate, isophorone diisocyanate, 1,4-cyclohexane bismethyl isocyanate, 4,4-methylene biscyclohexyl isocyanate, isophorone diisocyanate Aliphatic isocyanate crosslinking agents such as -2 functional alcohol adducts, isophorone diisocyanate-3 functional alcohol adducts, hexamethylene diisocyanate- 2 functional alcohol adducts, hexamethylene diisocyanate-3 functional alcohol adducts, etc. are preferred, and hexamethylene diisocyanate Is particularly preferred.
- epoxy crosslinking agent examples include phenols such as triglycidyl isocyanurate, phenol novolac type epoxy resin, phenol, cresol, xylenol, resorcin, catechol, bisphenol A, bisphenol F and / or ⁇ -naphthol, ⁇ -naphthol.
- Examples of the acid anhydride crosslinking agent include phthalic anhydride, maleic anhydride, trimellitic anhydride, pyromellitic anhydride, hexahydrophthalic anhydride, 3-methyl-hexahydrophthalic anhydride, 4-methyl-hexahydrophthalic anhydride, Examples include tetrahydrophthalic anhydride, nadic anhydride, and methyl nadic anhydride.
- the marking layer 30 represents a mark such as a character, symbol, or figure, and is a layer having a color different from the colors of the first colored layer 10 and the second colored layer 20. As long as the color of the marking layer 30 is different from the colors of the first colored layer 10 and the second colored layer 20, it also includes a transparent color. When the color of the marking layer 30 is a transparent color, it is possible to perform a conspicuous marking. In this case, for example, it is suitable for marking a watermark.
- the marking layer 30 is formed from a thermosetting resin paint containing a resin, a crosslinking agent, a colorant, and an organic solvent.
- thermosetting resin of a resin coating material and a crosslinking agent just before coating.
- the resin used for the resin coating examples include acrylic resin, epoxy resin, and urethane resin.
- a crosslinking agent used for the resin coating material of the marking layer 30 a crosslinking agent in which the curing shrinkage rate of the marking layer 30 is smaller than the curing shrinkage rate of the first colored layer 10 is preferable.
- an isocyanate type crosslinking agent, an epoxy type crosslinking agent, an acid anhydride type crosslinking agent, etc. are mentioned.
- an isocyanate-based crosslinking agent is preferable from the viewpoint of improving the adhesion between the second colored layer 20 and the first colored layer 10 and the adhesion or durability between the first colored layer 10 and the marking layer 30.
- the isocyanate-based crosslinking agent has an isocyanate group as a functional group.
- the isocyanate group undergoes a crosslinking reaction by reacting with a functional group having active hydrogen such as a hydroxyl group or an amino group contained in the resin included in the marking layer 30 or the first colored layer 20.
- a functional group having active hydrogen such as a hydroxyl group or an amino group contained in the resin included in the marking layer 30 or the first colored layer 20.
- a functional group having active hydrogen such as a hydroxyl group or an amino group contained in the resin included in the marking layer 30 or the first colored layer 20.
- the curing shrinkage rate is smaller than that of a resin containing a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, a urea-based crosslinking agent, or a metal chelate-based crosslinking agent.
- the resin contains a carboxyl group as a functional group or when there is water as an impurity, the isocyanate group reacts with them to generate carbon dioxide. In this case, desorption of carbon dioxide occurs and the curing shrinkage rate increases.
- the curing shrinkage ratio is usually smaller than that of a resin containing a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, a urea-based crosslinking agent, or a metal chelate-based crosslinking agent.
- the colorant used for the resin coating of the marking layer 30 is not particularly limited, but those having weather resistance and durability that can be removed by laser light irradiation and can be used for a long period of time are preferable.
- it can be selected from Color Index 3rd Edition (1971) and Supplements (1975) published by The Society of Dies and Colorists, and pigments such as inorganic, organic, azo, condensed polycyclic and metal complex salts can be used.
- examples include inorganic pigments such as zinc white, zinc sulfide, titanium dioxide, calcium carbonate, silica, muscovite, carbon black, iron black, and organic pigments such as aniline black and perylene black.
- inorganic pigments such as zinc white, zinc sulfide, titanium dioxide, calcium carbonate, silica, muscovite, carbon black, iron black, and organic pigments such as aniline black and perylene black.
- it is not limited to these.
- the crosslinking agent used for the resin coating of the marking layer 30 is preferably a crosslinking agent in which the curing shrinkage rate of the marking layer 30 is smaller than the curing shrinkage rate of the first colored layer 10.
- a crosslinking agent in which the curing shrinkage rate of the marking layer 30 is smaller than the curing shrinkage rate of the first colored layer 10.
- an isocyanate type crosslinking agent for example, an isocyanate type crosslinking agent, an epoxy type crosslinking agent, an acid anhydride type crosslinking agent, etc. are mentioned.
- an isocyanate-based crosslinking agent is preferable.
- the isocyanate-based crosslinking agent has a smaller curing shrinkage than a resin containing a melamine-based crosslinking agent, a benzoguanamine-based crosslinking agent, a urea-based crosslinking agent, or a metal chelate-based crosslinking agent.
- the crosslinking agent used for the resin coating for the marking layer 30 Is preferably an isocyanate-based crosslinking agent, and examples of the other crosslinking agent include an epoxy-based crosslinking agent and an acid anhydride-based crosslinking agent.
- the crosslinking agent used for the first colored layer 10 reacts with the resin contained in the marking layer 30 or the crosslinking agent used for the marking layer 30 reacts with the resin contained in the first colored layer 10.
- the crosslinking agent used for the first colored layer 10 is a crosslinking agent having an isocyanate group. Any resin having a hydroxyl group such as 2-hydroxyethyl methacrylate may be used. In this case, it is considered that at least one of the crosslinking agent used in the first colored layer 10 and the resin contained in the marking layer 30 oozes out into the second colored layer 20 to cause a crosslinking reaction.
- the crosslinking agent used for the marking layer is a melamine-based crosslinking agent
- the first colored layer 10 has a hydroxyl group. If it is. In this case, it is considered that at least one of the resin contained in the first colored layer 10 and the crosslinking agent used in the marking layer 30 oozes out into the second colored layer 20 to cause a crosslinking reaction.
- the marking layer 30 in the present embodiment has an exposed surface exposed on one surface F1 of the first colored layer 10, and the area ratio of the exposed surface of the marking layer 30 is in close contact with the first colored layer 10. From the viewpoint of improving the properties, it is preferably 1% or more and 50% or less, more preferably 1% or more and 40% or less, with respect to the surface area of the one surface F1 of the label. More preferably, it is 1% or more and 30% or less.
- the thickness of the first colored layer 10 in the label 1 is preferably 3 to 30 micrometers, the thickness of the second colored layer 20 is preferably 40 to 120 micrometers, and the thickness of the marking layer 30 is 0.5 to 30 micrometers. Meters are preferred.
- the first colored layer 10, the second colored layer 20, and the marking layer 30 are layers of different colors. In this case, the boundary between the first colored layer 10 and the second colored layer 20 is visible, and the first colored layer 10 and the marking layer 30 are also visible. Further, the second colored layer 20 and the marking layer 30 are also visible. Therefore, the second colored layer 20 can be visually recognized when information is printed by removing a desired place from the marking layer and the first colored layer with a laser to expose the second colored layer. For this reason, the label 1 of this embodiment is useful as a label for laser marking.
- the label 1 in the present embodiment can enhance the adhesion between the first colored layer 10 and the marking layer 30 regardless of the thickness of the first colored layer 10 or the marking layer 30.
- the label 1 in the present embodiment can suppress the peeling between the first colored layer 10 and the marking layer 30 and the occurrence of cracks.
- the adhesion between the first colored layer 10 and the marking layer 30 can be further enhanced.
- the adhesion between the second colored layer 20 and the first colored layer 10 and the adhesion between the first colored layer 10 and the marking layer 30 are improved. It can be further enhanced.
- the label 1 in the present embodiment is a layer in which the first colored layer 10, the second colored layer 20, and the marking layer 30 are cured by heat
- the label 1 in the present embodiment includes the first colored layer 10, the first colored layer 10, and the first colored layer 10. Regardless of the thickness of the two colored layers 20 or the marking layer 30, the peeling between the layers of the label and the occurrence of cracks are suppressed, and the durability is excellent.
- FIG. 2 is a diagram showing a cross section of the label 2 in another embodiment.
- the label 2 of the present embodiment is provided with a brittle layer 41, an adhesive layer 42 and a release layer 43 in addition to the first colored layer 10, the second colored layer 20, and the marking layer 30. Can do.
- the brittle layer 41 is a layer that causes destruction such that when the label from which the release layer 43 is peeled is attached to the product and then peeled off, the label cannot be reused.
- the brittle layer 41 is formed from a resin paint obtained by adding a brittleness imparting component to the resin paint used for the second colored layer 20.
- brittleness imparting component of the resin coating used for the brittle layer 41 inorganic particles such as glass beads, silica and calcium carbonate, and organic particles such as acrylic beads, styrene beads and silicone beads can be used.
- FIG. 3 is a flowchart showing a method for manufacturing the label 1.
- the manufacturing method of the label 1 includes a marking layer forming step P1, a first colored layer forming step P2, a second colored layer forming step P3, and a peeling step P4 as main steps.
- the marking layer forming step P1 is a step of forming the marking layer 30.
- FIG. 4 is a diagram showing a state of the marking layer forming step P1. As shown in FIG. 4, in this step, as a first step, a resin paint 50 is applied on one surface of the base material 40 so as to form a pattern representing a predetermined mark.
- the base material 40 a film whose surface is treated with a coating agent containing polyolefin, silicone, fluorine, silica, beads, wax or the like on one surface of PET, PEN, paper, or the like, or untreated PET or PEN film is used. Can do. Furthermore, the base material 40 may be subjected to an embossing treatment, a corona treatment, or the like.
- the method for applying the resin coating 50 on one surface of the substrate 40 is not particularly limited, and examples thereof include a gravure printing method, a screen printing method, and a seal printing.
- the resin coating 50 applied on one surface of the base material 40 is heat-cured to form a marking layer 30 having a pattern representing a predetermined mark.
- the marking layer 30 that can be uniformly cured regardless of the thickness of the resin coating 50 and has sufficient strength can be obtained.
- the first colored layer forming step P2 is a step of forming the first colored layer 10. As shown in FIG. 5, in this step, as a first step, a resin paint 60 is applied on one surface of the substrate 40 and the surface of the marking layer 30.
- the resin coating 60 applied on one surface of the base material 40 and the surface of the marking layer 30 is heat-cured to form the first colored layer 10.
- the resin coating 60 that is cured by heat is used in the present process P2
- the first colored layer 10 that can be uniformly cured regardless of the thickness of the resin coating 60 and has sufficient strength can be obtained.
- the second colored layer forming step P3 is a step of forming the second colored layer 20.
- FIG. 6 is a diagram showing a state of the second colored layer forming step P3. As shown in FIG. 6, in this step, as a first step, a resin paint 70 is applied on one surface of the first colored layer 10 formed in the first colored layer forming step P2. As the second stage, the resin coating 70 is heated and cured to form the second colored layer 20.
- the second colored layer 20 that can be uniformly cured regardless of the thickness of the resin coating 70 and has sufficient strength can be obtained.
- the peeling process P4 is a process of peeling the base material 40 from the marking layer 30 and the first colored layer 10.
- FIG. 7 is a diagram illustrating a state of the peeling process P4.
- the cure shrinkage rate of the first colored layer 10 is larger than the cure shrinkage rate of the marking layer 30 embedded in the first colored layer 10, and the first colored layer 10 causes the marking layer 30 to be cured by curing. Since it is sandwiched, the adhesion between the first colored layer 10 and the marking layer 30 is high. Therefore, even if the base material 40 is peeled in the peeling step P4, the marking layer 30 is not separated from the first colored layer 10.
- a brittle layer forming step, a pressure-sensitive adhesive layer, and a peeling layer forming step can be provided and manufactured before the peeling step P4.
- the brittle layer forming step is performed after the second colored layer forming step P 3, and the brittle layer 41 is formed on one surface of the second colored layer 20.
- the label 1 or 2 manufactured in this way can print information using a laser.
- information can be printed by removing a part of the first colored layer 10 and the marking layer 30 using a laser and exposing the second colored layer 20.
- FIG. 8 is a diagram illustrating a state in which information such as characters and designs is printed on the label 1 using a laser.
- the removal portion 80 is formed by irradiating the first colored layer 10 and the marking layer 30 with the laser light L.
- the irradiation surface side of the laser beam L is observed, information can be visually recognized by comparing the removed portion 80 with other non-removed portions. Note that a part of the second colored layer 20 may be removed when the laser light L is irradiated.
- the acrylic resins used in Preparation 1 were 2-hydroxyethyl methacrylate, which is a resin containing a hydroxyl group as a functional group in the acrylic resin KP-2341, and functional groups in the acrylic resin Hi-S SP2100U4.
- Each of the compositions contains 2-hydroxyethyl methacrylate, which is a resin containing a hydroxyl group, and acrylic acid, which is a resin containing a carboxyl group as a functional group.
- Acrylic resin Hi-S SP2100U4 (manufactured by Nippon Carbide Industries Co., Ltd.) 50 parts by weight, colorant FPGS-5010W (manufactured by Dainichi Seika Kogyo Co., Ltd.), 100 parts by weight of isocyanate crosslinking agent Coronate HK (Nippon Polyurethane Industry ( 16 parts by weight) and PTMG-1000M (manufactured by Sanyo Chemical Industries) were mixed to prepare a resin coating for forming the second colored layer.
- Example 1 Using the resin coating of Preparation 3 on a PET film (Teijin DuPont Films Co., Ltd. S75) as a substrate, the area ratio of the exposed surface of the marking layer is 0.8 relative to the surface area of one surface of the label. A pattern such as letters and designs was printed by gravure printing so that the percentage became 2%, and a marking layer having a thickness of 2 micrometers was obtained. Subsequently, the resin paint of Preparation 1 was applied on a part of the substrate and the marking layer, and heated at 150 ° C. for 3 minutes to form a first colored layer having a thickness of 15 micrometers.
- the resin paint of Preparation 2 is applied onto the first colored layer so that the thickness after heating is 60 micrometers, heated at 140 ° C. for 3 minutes, then at 150 ° C. for 2 minutes, A colored layer was obtained. Finally, the substrate was peeled off to produce a label.
- Example 2 Using the resin paint of Preparation 3, a label was produced in the same manner as in Example 1 except that the area ratio of the exposed surface of the marking layer was 1% with respect to the surface area of one side of the label. .
- Example 3 Using the resin paint of Preparation 3, a label was produced in the same manner as in Example 1 except that the area ratio of the exposed surface of the label layer was 11% with respect to the surface area of one side of the label. .
- Example 4 Using the resin paint of Preparation 3, a label was produced in the same manner as in Example 1 except that the area ratio of the exposed surface of the marking layer was 25% with respect to the surface area of one side of the label. .
- Example 5 Using the resin paint of Preparation 3, a label was produced in the same manner as in Example 1 except that the area ratio of the exposed surface of the marking layer was 40% of the surface area of one side of the label. .
- Example 6 A label was produced in the same manner as in Example 1 except that printing was performed using the resin paint of Preparation 3 so that the area ratio of the exposed surface of the marking layer was 50% of the surface area of one side of the label. .
- Example 7 Using the resin paint of Preparation 3, a label was produced in the same manner as in Example 1 except that the area ratio of the exposed surface of the marking layer was 75% of the surface area of one side of the label. .
- Example 8 Replacing the melamine crosslinking agent MS-11 in Preparation 1 with a benzoguanamine crosslinking agent BL-60 (manufactured by Sanwa Chemical Co., Ltd.) and using the resin paint of Preparation 3, the area ratio of the exposed surface of the marking layer is A label was produced in the same manner as in Example 1 by printing so as to be 11% of the surface area of one side.
- Example 9 Replacing the melamine-based crosslinking agent MS-11 of Preparation 1 with the urea-based crosslinking agent MX-202 (manufactured by Sanwa Chemical Co., Ltd.) and using the resin paint of Preparation 3, the area ratio of the exposed surface of the marking layer is labeled A label was produced in the same manner as in Example 1 by printing so as to be 11% of the surface area of one side.
- marking layer samples having thicknesses different from those of the marking layers used in the labels of Examples 1 to 9 and the comparative example were prepared.
- the marking layer sample was produced as follows. First, the resin paint of Preparation 3 was applied on the surface of a surface-treated PET film (E-7004 manufactured by Toyobo Co., Ltd.). At this time, coating was performed so that the thickness was 50 micrometers after heat drying. Next, the film coated with the resin paint of Preparation 3 was heated at 80 ° C. for 1.5 minutes. Next, the resin coating cured by heating was peeled off from the PET film and cut to obtain three square marking layer samples having a side of 10 cm.
- a surface-treated PET film E-7004 manufactured by Toyobo Co., Ltd.
- a first colored layer sample having a thickness different from that of the first colored layer used in the labels of Examples 1 to 7 a first colored layer sample having a thickness different from that of the first colored layer used in the label of Example 8
- Examples A first colored layer sample having a thickness different from that of the first colored layer used for the label No. 9 and a first colored layer sample having a thickness different from that of the first colored layer used for the label of Comparative Example 1 were prepared.
- Each first colored layer sample was produced as follows.
- Preparation of the first colored layer samples according to the labels of Examples 1 to 7 was carried out at 150 ° C. under the heating conditions using the resin paint of Preparation 1 of the first colored layer samples according to the labels of Examples 1 to 7 above. Except for the minute, it was the same as the sign layer sample. Thus, three first colored layer samples having a thickness of 50 micrometers were obtained after the heat drying used in the labels of Examples 1 to 7.
- the first colored layer samples according to the labels of Examples 1 to 7 were prepared except that the resin paint used for the first colored layer of Example 8 was used. And the same. Thus, three first colored layer samples having a thickness different from that of the first colored layer used for the label of Example 8 were obtained.
- the first colored layer samples according to the labels of Examples 9 to 7 were prepared except that the resin paint used for the first colored layer of Example 9 was used. And the same. Thus, three first colored layer samples having a thickness different from that of the first colored layer used for the label of Example 9 were obtained.
- the first colored layer samples according to the labels of Examples 1 to 7 were prepared except that the resin paint used for the first colored layer of Comparative Example 1 was used. And the same. Thus, three first colored layer samples having a thickness different from that of the first colored layer used for the label of Comparative Example 1 were obtained.
- the curing shrinkage rate was measured for each sample.
- the measurement was performed as follows. First, the length in the vertical direction and the horizontal direction of each sample was measured. Next, each sample was left in an environment of 80 ° C. for 24 hours, and then left in an environment of 23 ° C. and 50% humidity. Thereafter, the lengths of the sample in the vertical direction and the horizontal direction were measured again. And the cure shrinkage rate was calculated
- Table 2 shows a summary of the area ratio of the exposed surface in Examples 1 to 9 and Comparative Example 1 above, the crosslinking agent used in the resin coating material of Preparation 1, and adhesion and cracks. .
- the adhesion in Table 2 above is evaluated as follows. That is, the produced label is cut into a 7.5 cm square and used as a test piece. After leaving the test piece for 1000 hours in an environment of 150 ° C., it was immersed in a 0.1% rhodamine aqueous solution for 24 hours, taken out from the rhodamine aqueous solution, and the excess aqueous solution adhering to the test piece was wiped off with a cloth. Thereafter, whether or not the rhodamine aqueous solution entered between the marking layer and the first colored layer and colored with rhodamine was visually observed.
- the cracks in the above Table 2 are evaluated as follows. That is, after the produced label was allowed to stand in an environment of 150 ° C. for 1000 hours, it was visually observed whether or not there was a crack on the surface of the first colored layer on the labeling layer side.
- Example 6 and Example 7 are marked with ⁇ for adhesion, but Example 7 had poor adhesion compared to Example 6 although there was no practical problem.
- the area ratio of the exposed surface of the marking layer is 1% or more and 50% or less in order to increase the adhesion between the layers and to prevent the occurrence of cracks. I understood. Further, from Examples 2 to 5, it was found that the area ratio of the exposed surface of the marking layer is more preferably 1% or more and 40% or less in order to improve the adhesion and prevent the occurrence of cracks. It was.
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Abstract
Description
標示層形成工程P1は、標示層30を形成する工程である。図4は、標示層形成工程P1の様子を示す図である。図4に示すように、本工程では第1段階として基材40の一面上に所定の目印を表すパターンとなるように樹脂塗料50を塗工する。
第1着色層形成工程P2は、第1着色層10を形成する工程である。図5に示すように、本工程では、第1段階として、基材40の一面および標示層30の表面上に、樹脂塗料60を塗工する。
第2着色層形成工程P3は、第2着色層20を形成する工程である。図6は、第2着色層形成工程P3の様子を示す図である。図6に示すように、本工程では、第1段階として、第1着色層形成工程P2で形成した第1着色層10の一面上に樹脂塗料70を塗工する。第2段階として、樹脂塗料70を加熱硬化し第2着色層20を形成する。
剥離工程P4は、標示層30および第1着色層10から基材40を剥離する工程である。図7は、剥離工程P4の様子を示す図である。
<調製1>
アクリル系樹脂KP-2341(ニッセツ(株)製)50重量部、アクリル系樹脂Hi-S SP2100U4(日本カーバイド工業(株)製)50重量部、メラミン系架橋剤MS-11((株)三和ケミカル製)18重量部、リン酸エステルCT-198((株)三和ケミカル製)0.3重量部、着色剤FPGS-5910B(大日精化工業(株)製)15重量部を混合し、第1着色層を形成するための樹脂塗料を調製した。
アクリル系樹脂Hi-S SP2100U4(日本カーバイド工業(株)製)50重量部、着色剤FPGS-5010W(大日精化工業(株)製)100重量部、イソシアネート系架橋剤コロネートHK(日本ポリウレタン工業(株)製)16重量部、PTMG-1000M(三洋化成工業(株)製)5重量部を混合し、第2着色層を形成するための樹脂塗料を調製した。
アクリル・エポキシ系樹脂と着色剤を含有するインキMA31 OPニス(富士インキ工業(株)製)100重量部とイソシアネート系架橋剤NX ハードナー(富士インキ工業(株)製)10重量部を混合し、標示層を形成するための樹脂塗料を調製した。
基材としてのPETフィルム(帝人デュポンフィルム(株)製S75)に、調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して0.8%になるように文字や図柄などのパターンをグラビア印刷により印刷し、厚み2マイクロメートルの標示層を得た。続いて、基材の一部と標示層の上に調製1の樹脂塗料を塗工し、150℃で3分間加熱し、厚み15マイクロメートルの第1着色層を形成した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して1%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して11%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して25%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して40%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して50%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して75%になるように印刷した以外はすべて実施例1と同様にラベルを作製した。
調製1のメラミン系架橋剤MS-11をベンゾグアナミン系架橋剤BL-60((株)三和ケミカル製)に置き換え、調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して11%になるように印刷し、実施例1と同様にラベルを作製した。
調製1のメラミン系架橋剤MS-11を尿素系架橋剤MX-202((株)三和ケミカル製)に置き換え、調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して11%になるように印刷し、実施例1と同様にラベルを作製した。
調製1のメラミン系架橋剤MS-11をイソシアネート系架橋剤コロネートHK(日本ポリウレタン工業(株)製)に置き換え、調製3の樹脂塗料を用いて、標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して11%になるように印刷し、実施例1と同様にラベルを作製した。
Srv={(Lpv-Lav)/Lpv}×100 ・・・(1)
Srh={(Lph-Lah)/Lph}×100 ・・・(2)
Sr={(Srv2+Srh2)1/2}/2 ・・・(3)
そして、上記(3)式で得られた3枚のサンプルの収縮率を平均して、標示層サンプルの硬化収縮率、及び、それぞれの第1着色層サンプルの硬化収縮率とした。その結果を表1に示す。
10・・・第1着色層
20・・・第2着色層
30・・・標示層
40・・・基材
50,60,70・・・樹脂塗料
P1・・・標示層形成工程
P2・・・第1着色層形成工程
P3・・・第2着色層形成工程
P4・・・剥離工程
80・・・除去部
L・・・レーザー
Claims (6)
- 第1着色層と、
第1着色層の色とは異なる色の第2着色層と、
第1着色層および第2着色層の色とは異なる色の標示層と
を有し、
標示層は第1着色層の一方の面に露出面を有するように嵌設し、第2着色層は第1着色層の他方の面に積層し、
第1着色層の硬化収縮率は、標示層の硬化収縮率よりも大きい
ことを特徴とするラベル。 - 標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して1%以上50%以下である
ことを特徴とする請求項1に記載のラベル。 - 標示層の露出面の面積割合が、ラベルの一方の面の表面積に対して1%以上40%以下である
ことを特徴とする請求項2に記載のラベル。 - 第1着色層に用いる架橋剤が、標示層が含有する樹脂の官能基と反応するものである
ことを特徴とする請求項1から請求項3のいずれか1項に記載のラベル。 - 第2着色層に用いる架橋剤が、第1着色層が含有する樹脂の官能基、及び標示層が含有する樹脂の官能基と反応するものである
ことを特徴とする請求項1~請求項4いずれか1項に記載のラベル。 - 基材の一面上に樹脂塗料を配した後に加熱して標示層を形成する標示層形成工程と、
標示層形成工程で用いた樹脂塗料と異なる色の樹脂塗料を、基材の一面および標示層の表面上に配した後に加熱して第1着色層を形成する第1着色層形成工程と、
標示層形成工程で用いた樹脂塗料及び第1着色層形成工程で用いた樹脂塗料と異なる色の樹脂塗料を、第1着色層の表面上に配した後に加熱して第2着色層を形成する第2着色層形成工程と、
標示層および第1着色層から基材を剥離する剥離工程と
を備え、
第1着色層の硬化収縮率が、標示層の硬化収縮率より大きい
ことを特徴とするラベルの製造方法。
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JPH11117491A (ja) * | 1997-10-17 | 1999-04-27 | Eidai Co Ltd | 化粧板 |
JP2003108003A (ja) * | 2001-09-28 | 2003-04-11 | Nissha Printing Co Ltd | レーザーエッチングラベルの製造方法、レーザーエッチング用ラベル |
JP2007021818A (ja) * | 2005-07-13 | 2007-02-01 | Nippon Carbide Ind Co Inc | 脆質レーザー印字用積層体 |
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DE10142638A1 (de) * | 2001-08-31 | 2003-05-08 | Tesa Ag | Verfahren zum Herstellen einer laserbeschriftbaren Folie |
US8609212B2 (en) * | 2003-04-12 | 2013-12-17 | Bastione Limited | Security arrangement |
US7835047B1 (en) * | 2006-07-13 | 2010-11-16 | Raiford Frank D | Bi-directional informational article within an optical variable devise |
DE102006045495A1 (de) | 2006-09-27 | 2008-04-03 | Mitsubishi Polyester Film Gmbh | Laser-markierbare Folie |
CN101583986B (zh) * | 2006-12-15 | 2011-12-07 | 勃来迪环球股份有限公司 | 具有边缘进入溶剂指示特征的擅改指示标签 |
EP2179858A4 (en) * | 2007-07-23 | 2013-07-31 | Nippon Carbide Kogyo Kk | HEAT-RESISTANT, EASILY SOLDERABLE LABEL |
US9824610B2 (en) * | 2010-05-11 | 2017-11-21 | GM Global Technology Operations LLC | Vehicle identification number (VIN) label |
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JPH11117491A (ja) * | 1997-10-17 | 1999-04-27 | Eidai Co Ltd | 化粧板 |
JP2003108003A (ja) * | 2001-09-28 | 2003-04-11 | Nissha Printing Co Ltd | レーザーエッチングラベルの製造方法、レーザーエッチング用ラベル |
JP2007021818A (ja) * | 2005-07-13 | 2007-02-01 | Nippon Carbide Ind Co Inc | 脆質レーザー印字用積層体 |
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