JP5504906B2 - Printed matter - Google Patents

Description

  The present invention is a printed matter on which a logo pattern composed of a colored underlayer and a color change layer composed of a pearlescent pigment exhibiting a color change depending on the viewing angle is printed, and depending on the viewing angle of the observer, The present invention relates to a printed matter whose color changes quickly from an interference color exhibited by a pearlescent pigment to a color exhibited by a colored underlayer.

  Conventionally, logo patterns indicating the name of the manufacturer and the symbol mark are printed on various products such as home appliances such as TVs, personal computers, washing machines, refrigerators, and mobile terminals such as mobile phones and portable game machines. It is attached as a processed nameplate.

  Many printed logo patterns are printed and printed directly on products in various forms, and can be printed and printed directly on the product, making it possible to reduce manufacturing costs. Many products are processed and attached to products, and various proposals have been made to develop design properties in order to differentiate them from other companies.

  However, the logo pattern by printing is mainly printed by a single color, has poor design, and is difficult to differentiate from other companies' products.

  Moreover, since the logo pattern processed as a nameplate expresses designability, various processes are required, which has been a factor of increasing manufacturing costs.

  In addition, as a method for imparting design properties by printing, proposals have been made for printed materials using pearlescent pigments.

  However, it is a proposal for efficiently expressing glossy colors by pearlescent pigments, and no proposal for effective use of color change of pearlescent pigments has been made, until it has high design as a logo pattern by printing It was not reached.

JP 2006-330015 A Japanese Laid-Open Patent Publication No. 2006-243421 JP 2001-265229 A Japanese Laid-Open Patent Publication No. 2001-260517

  The present invention has been made in view of the above problems, and a logo pattern by printing is composed of a colored underlayer and a color change layer containing scaly pearlescent pigment, and the color change layer is optional. In 80% or more of the total number of pearlescent pigments in the cross section, the inclination angle difference between the angle formed by the pigment and the angle formed by the printing surface of the printing material is 5 ° or less, depending on the viewing angle of the observer. It is possible to cause a quick color change alternately from the color exhibited by the colored underlayer to the interference color exhibited by the pearl luster pigment, and to provide a logo pattern printed matter that exhibits high designability. To do.

As a means for solving the above problems, the invention according to claim 1 is a printed material in which a specific pattern is printed on a material to be printed, and the specific pattern is at least a first layer. and strata, is constituted by a color change layer formed of a second layer, the color changing layer of the second layer is a scale-like pearlescent pigments, in printed material constituted by an ink comprising a transparent binder, wherein the colored under between strata and the color change layer, an intermediate layer is provided, the intermediate layer, which is provided by an ink made of a transparent resin printing method, before Symbol color change layer, scaly pearl at any cross-section The pigment whose inclination angle difference between the angle formed by the glossy pigment and the angle formed by the printing surface of the substrate is 5 ° or less is 80% or more of the total pigment of any cross section, and the printed material was irradiated For specular reflection from the light source , In which the viewing angle of the interference colors exhibiting pearlescent pigments were printed matter, and which is a range of at least 15 °.

The invention according to claim 2, wherein on the substrate, and the colored base layer, and the intermediate layer, the color change layer according to claim 1, characterized in that are laminated in this order Printed material.

Further, the invention according to claim 3, said colored underlayer, said intermediate layer, said color change layer are laminated in this order, the more the color change layer, that clear top coat layer are laminated The printed matter according to claim 1, wherein the printed matter is a feature.

The invention according to claim 4, wherein a printing object is transparent, and the color change layer on the substrate, and the intermediate layer, the colored underlayer is characterized by being laminated in this order The printed matter according to claim 1 .

The invention according to claim 5 is the printed matter according to claims 1 to 4 , wherein the specific pattern is a logo pattern.

  In the present invention, first of all, since a specific pattern is printed on a printed material on which a design is applied, a change in the viewing angle of the viewer with respect to the printed material changes the color from the interference color exhibited by the pearl luster pigment. A quick color change alternately occurs to the color exhibited by the underlayer, and a printed matter having high design properties can be obtained.

  Secondly, the gloss and luster due to the improved smoothness of the surface of the printed material is increased, and the viewing angle of the observer with respect to the printed material is changed, so that the interference color exhibited by the pearl luster pigment changes to the color exhibited by the colored underlayer. A quick color change occurs alternately, and a three-dimensional effect can be generated in the printed matter by the top coat layer, and a printed matter having high design properties can be obtained.

  Third, when the observer observes the printed material from the surface opposite to the surface on which the printed material is printed, the interference of the pearlescent pigment due to the change in the viewing angle of the observer with respect to the printed material. A quick color change occurs alternately from the color to the color exhibited by the colored underlayer, and a printed matter having high design properties can be obtained.

  Fourthly, when fine irregularities are generated on the printing surface, the intermediate irregularities of the layer printed on the non-printed material can be absorbed by the intermediate layer. Further, by making the intermediate layer transparent, it is possible to obtain a printed matter having high design properties without inhibiting the color change between the interference color exhibited by the pearl luster pigment and the color exhibited by the colored underlayer.

It is sectional drawing which shows schematic structure of 1st Embodiment of the printed matter of one Example of this invention. It is sectional drawing which shows schematic structure of 2nd Embodiment of the printed matter of one Example of this invention. It is sectional drawing which shows schematic structure of 3rd Embodiment of the printed matter of one Example of this invention. It is sectional drawing which shows schematic structure of 4th Embodiment of the printed matter of one Example of this invention.

  Hereinafter, preferred embodiments of a printed matter according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a schematic configuration of a first embodiment of a printed matter according to an example of the present invention.

  As shown to Fig.1 (a), it is the printed matter by which the specific pattern was printed on the to-be-printed object (1), and a specific pattern is a colored ground layer (first layer on the to-be-printed object (1)). 10) and the color change layer (11) as the second layer are laminated and printed in order, and as shown in FIG. 1 (b), the color change layer (11) is a scaly pearlescent pigment (20). When the color change layer (11) is cut in an arbitrary cross section, the arrangement of the pearlescent pigment (20) can be observed.

  As shown in FIG. 1, in the present invention, in an arbitrary cross section of the color change layer (11), the angle formed by the pigment and the printing of the substrate (1) in 80% or more of the total number of pearlescent pigments (20). When the observer observes the printed matter from the viewing angle (40a), the light from the light source (30) is converted into the color changing layer (21). 11) The interference color exhibited by the pearlescent pigment (20) is visually recognized by the observer in the range (51) of at least 15 ° or less with respect to the regular reflection light (50a) reflected by the pearlescent pigment (20) in 11). .

  On the other hand, when the observer observes the non-reflected light (50b) from the light source (30) at the viewing angle (40b), the interference color due to reflection from the pearlescent pigment (20) in the color change layer (11) is observed. Instead, only the reflected light from the colored base layer (10) laminated under the color change layer (11) is visually recognized by the observer.

  That is, when the positional relationship between the light source (30) and the printed matter is constant, the viewing angle of the observer changes along the relative movement direction (41) between the observer and the printed matter, so that the color of the printed matter is changed. Changes alternately from the color exhibited by the colored underlayer (10) to the interference color exhibited by the pearlescent pigment (20) contained in the color change layer (11).

  The printed material (1) may be any material that can be printed on the surface. For example, the material (1) is made of a metal such as aluminum, iron, or titanium, or the surface is plated with a metal such as nickel, chromium, or silver. Sheets and structures, sheets and structures made of plastic such as polyethylene, polypropylene, polyvinyl chloride, acrylic resin, and polycarbonate resin, and sheets made of paper such as coated paper, fine paper, and art paper A sheet or a structure formed of a combination of these, a structure, or the like is not particularly limited.

  The colored underlayer (10) may be appropriately selected from inks that can exhibit a desired color, such as dye ink, pigment ink, and ink containing metal powder.

  The color changing layer (11) may be formed by kneading and dispersing the pearl luster pigment (20) with a solvent-type transparent binder to form an ink. Examples of the binder material used include urethane, acrylic, polyester, What is necessary is just to select suitably the binder which consists of transparent resin components, such as a phenol, vinyl acetate, polyamide, a fluorine, and silicone.

  The pearlescent pigment is generally at least a scale-like matrix, such as natural mica or synthetic mica, aluminum, alumina, silica, etc., and at least a metal oxide such as titanium oxide, iron oxide, chromium oxide, It is a product coated with a metal oxide such as zinc oxide, and it is a pigment that exhibits interference color due to the optical path difference between the reflected light from the base surface and the reflected light from the metal oxide surface. The interference color exhibited by the pearlescent pigment is Various interference colors can be selected by changing the base material, changing the type of metal oxide, and the coating thickness.

  As a method for setting the difference in inclination angle (21) between the angle formed by the pearl luster pigment (20) and the angle formed by the printing surface of the substrate (1) to 5 ° or less, for example, the pearl luster pigment (20) is a solvent. The solid content ratio of the ink kneaded and dispersed with the transparent binder of the mold is preferably adjusted to a range of 10% to 70%, more preferably 30% to 50%, and the solid content ratio is less than 10%. Then, dripping or the like occurs and a satisfactory coated surface cannot be obtained. On the other hand, if the solid content ratio exceeds 70%, not only the ink viscosity increases and printability cannot be obtained, but also the fluidity of the pearlescent pigment (20) after printing is inhibited, and the inclination angle with respect to the total number of pearlescent pigments. The proportion of pearlescent pigments having a difference (21) of 5 ° or less decreases.

  Further, as another method for setting the inclination angle difference (21) between the angle formed by the pearl luster pigment (20) and the angle formed by the printing surface of the substrate (1) to 5 ° or less, for example, polyester, polypropylene, poly An ink composed of a pearlescent pigment (20) and a transparent binder is coated on a transfer substrate in which a release component such as silicone or wax is coated on a plastic substrate composed of vinyl chloride, and the ink has tackiness. The substrate for transfer (1) may be pressed against the substrate (1) for transfer printing. In the transfer to the substrate (1), the transfer pressure is not particularly specified. Is preferably applied at a transfer pressure of 0.5 MPa or more, more preferably at a transfer pressure of 2 MPa or more.

  The printing method for printing the selected ink on the colored underlayer (10) and the color change layer (11) is not particularly limited. For example, offset printing, gravure printing, flexographic printing, silk screen printing, inkjet printing. , Spray printing, pad printing, and other various printing methods may be selected as appropriate.

  FIG. 2 is a cross-sectional view showing a schematic configuration of a second embodiment of a printed matter according to an example of the present invention.

  A printed material in which a specific pattern is printed on the substrate (1), and the specific pattern is formed by sequentially laminating a colored ground layer (10) and a color change layer (11), and further a transparent top coat on the color change layer (11) When the observer observes the printed matter from the observer's viewpoint (40), the surface of the printed matter is improved by providing a transparent topcoat layer on the outermost layer. In addition, the gloss and gloss can be increased, and a three-dimensional effect can be produced in the printed matter.

  The surface shape of the topcoat layer (12) is not particularly specified, but by making the surface flat, the corners of the printed matter are emphasized, resulting in a higher three-dimensional effect, and the topcoat layer ( By making the surface of 12) a curved surface, the same effect as that obtained by potting can be obtained, so that a printed matter having higher design properties can be obtained.

  Moreover, what is necessary is just to select suitably the ink which consists of transparent resins, such as an acrylic resin, a urethane resin, an epoxy resin, PVA, as a material of a topcoat layer (12), for example.

  Next, FIG. 3 is a cross-sectional view showing a schematic configuration of a third embodiment of a printed material according to an example of the present invention.

  It is a printed material in which a specific pattern is printed on a transparent substrate (1), and the specific pattern has a configuration in which a colored ground layer (10) is laminated on a color change layer (11). In order to observe from the viewpoint (40), the specific pattern is observed through the transparent substrate (1). According to this configuration, since the specific pattern is not exposed to the viewer side, By selecting the material, there is an advantage that flexibility can be given to the mechanical resistance and chemical resistance of a specific pattern.

  In addition, as a transparent substrate, for example, a sheet or a structure made of plastic such as polypropylene, polyvinyl chloride, acrylic resin, polycarbonate resin, or glass was printed on the surface facing the observer. There is no particular limitation as long as the specific pattern can be recognized.

  FIG. 4 is a cross-sectional view showing a schematic configuration of the fourth and fifth embodiments of a printed matter according to an example of the present invention.

  A printed material in which a specific pattern is printed on the substrate (1), and a transparent intermediate layer (13) is provided between the colored ground layer (10) and the color change layer (11) constituting the specific pattern. 4A, an increase in surface scattering of light due to minute irregularities on the printed surface of the colored underlayer (10) can be suppressed. In FIG. 4B, the printed surface of the color change layer (11) can be suppressed. The increase in surface scattering of light due to the minute unevenness can be suppressed, and useful effects can be obtained respectively.

  Furthermore, in FIG. 4A, when the color change layer (11) is laminated and printed as it is when the printed surface of the colored underlayer (10) has minute irregularities, the colored underlayer (10) Due to the influence of minute irregularities on the printing surface, the inclination angle difference between the angle formed by the pearlescent pigment contained in the color change layer (11) and the angle formed by the printing surface of the printing material (1) increases. By providing the intermediate layer (13), this problem can be avoided.

  Furthermore, by making the intermediate layer (13) transparent, it is possible to obtain a printed matter having a high design property without inhibiting the alternate color change between the color exhibited by the colored underlayer and the interference color exhibited by the pearl luster pigment. it can.

  The ink constituting the intermediate layer (13) may be selected from, for example, an ink made of a transparent resin such as an acrylic resin, a urethane resin, an epoxy resin, or PVA, but the colored underlayer (10) and the color change layer ( 11) It is preferable to select an ink having good adhesion to both.

  Next, the present invention will be specifically described with reference to examples.

Example 1
In the configuration of the printed matter of the present invention shown in FIG. 4 (a), a black acrylic substrate having a thickness of 2 mm is used as the substrate to be printed, and a mirror ink for screen printing (trade name: MIR-51000: Teikoku Ink Co., Ltd. Company) as a pearlescent pigment (trade name: Xirallic T60-23: Merck Co., Ltd.), color change layer ink binder, intermediate layer ink, topcoat layer ink as overcoat clear for screen printing (trade name) SG429B: Seiko Advance Co., Ltd.) was selected.

  For the color change layer, the pearl luster pigment is kneaded and dispersed in the color change layer binder selected above at a content ratio of 30% by weight of the solid content of the color change layer. The color change layer ink was obtained by adjusting with a solvent so as to be 45% by weight.

  The color change layer ink obtained above was formed using a screen printing method.

  First, on the black acrylic substrate, a screen mirror ink is printed as a colored underlayer using a character pattern plate made of 300-line mesh, and the colored underlayer is sufficiently dried and cured by heating, and then the intermediate layer As an ink containing a pearlescent pigment prepared as a color change layer ink after the intermediate layer ink was printed on the colored underlayer using a character pattern plate comprising the same 300-line mesh, dried and cured. Are further printed using a character pattern comprising the 300-line mesh. Furthermore, it hardened and printed topcoat layer ink using the character pattern which consists of 300 line | wire mesh, and the character pattern printed matter was obtained.

  When the obtained character pattern printed matter was visually observed, at the angle at which the reflected light from the light source was observed, an interference color “blue” exhibited by the pearlescent pigment was developed, and at an angle inclined by 10 ° or more from the reflected light from the light source. As a result, the color of the colored underlayer became “silver”, and a quick color change was confirmed.

  Furthermore, when an arbitrary cross section of the obtained character pattern printed matter was observed with an optical microscope, an inclination angle between the angle formed by the pearlescent pigment and the angle formed by the printing surface in the pearlescent pigment of 80% or more contained in the color changing layer. The difference was 5 ° or less.

(Example 2)
Next, a character pattern printed matter was created by screen printing using the same ink as in Example 1 except that a transparent acrylic substrate having a thickness of 2 mm was used as the printed matter, with the configuration of the printed matter shown in FIG. .

  When the obtained character pattern printed matter was visually observed, as in (Example 1), at the angle at which the reflected light from the light source was observed, “blue”, which is an interference color exhibited by the pearlescent pigment, developed, and the reflected light from the light source. At an angle of 10 ° or more, “silver” as the color exhibited by the colored underlayer was obtained, and a quick color change was confirmed.

(Example 3)
Next, a black acrylic substrate having a thickness of 2 mm is used as the printed material, a pigment (trade name: Xiallic T60-23: Merck Ltd.) is used as the pearlescent pigment, and the color change layer ink is used. As a binder, a medium for screen printing (trade name: SS65 medium: Toyo Ink Manufacturing Co., Ltd.) was selected.

  For the color change layer, the pearl luster pigment is kneaded and dispersed in the binder for the color change layer selected above at a content ratio of 30% by weight of the solid content of the color change layer. The color change layer ink was obtained by adjusting with a solvent so as to be 50% by weight.

  Further, as a transfer substrate for transferring and printing the color change layer, a transfer sheet was prepared by laminating silicone on a polyethylene terephthalate (PET) sheet having a thickness of 250 μm so as to have a thickness of 100 μm as a peeling component.

  The color change layer ink obtained above was formed using a screen printing method.

  First, on the black acrylic substrate, a screen mirror ink was printed as a colored underlayer using a character pattern plate made of 300-line mesh, and the colored underlayer was sufficiently dried and cured by heating.

Ink containing a pearlescent pigment prepared as a color change layer ink is printed on a transfer sheet using a reverse character pattern plate made of 300 line mesh, and before the color change layer ink is completely cured, After making it adhere to the black acrylic board | substrate with which the character pattern was printed, and pressing at about 30 kPa with a hand roller, 1 MPa of pressing pressure was applied with the press machine for 1 minute.
After the pressing, the transfer sheet was peeled off, and the color change layer was sufficiently dried and cured to obtain a printed character pattern.

  When the obtained character pattern printed matter was observed, at the angle at which the reflected light from the light source was observed, “blue”, which is an interference color exhibited by the pearl luster pigment, developed, and at an angle inclined by 15 ° or more from the reflected light from the light source, “Silver”, which is the color exhibited by the colored underlayer, was confirmed, and a quick color change was confirmed.

(Example 4)
Next, with the configuration of the printed matter shown in FIG. 2, a transparent acrylic substrate having a thickness of 2 mm is used as the printed material, and black ink for screen printing (trade name CAV Transparent 765: Seiko Advance Co., Ltd.) is used as the colored underlayer ink. In addition, a pigment (trade name: CRHOMASHINE CRS BL20-R: Toyo Aluminum Co., Ltd.) is used as a pearlescent pigment, and an overcoat clear for screen printing (trade name: SG429B: Seiko Co., Ltd.) is used as a binder for color change layer ink and topcoat layer ink. Advanced) was selected respectively.

  For the color change layer, the pearl luster pigment is kneaded and dispersed in the binder for the color change layer selected above at a content ratio of 5% by weight of the solid content of the color change layer. The color change layer ink was obtained by adjusting with a solvent so as to be 45% by weight.

  The color change layer ink obtained above was formed using a screen printing method.

  First, on the transparent acrylic substrate, black ink for screen was printed as a colored underlayer using a character pattern plate made of 300 line mesh.

  After sufficiently drying and curing the colored underlayer by heating, the ink containing the pearl luster pigment adjusted as the color change layer ink is subjected to lamination printing using a character pattern composed of the same 300-line mesh, and cured, Further, the top coat layer ink was printed using a character pattern composed of a 300-line mesh to obtain a printed character pattern.

  When the obtained character pattern printed matter was observed, at the angle at which the reflected light from the light source was observed, “blue”, which is an interference color exhibited by the pearl luster pigment, developed, and at an angle inclined by 15 ° or more from the reflected light from the light source, It became “black”, the color of the colored underlayer, and a quick color change was confirmed.

  Furthermore, when an arbitrary cross section of the obtained character pattern printed matter was observed with an optical microscope, an inclination angle between the angle formed by the pearlescent pigment and the angle formed by the printing surface in the pearlescent pigment of 80% or more contained in the color changing layer. The difference was 5 ° or less.

(Comparative Example 1)
A character pattern printed matter was obtained by screen printing using the same structure and ink as in Example 1 except that the intermediate layer was not provided.

  When the obtained character pattern printed matter was observed, at the angle at which the reflected light from the light source is observed, the interference color "blue" exhibited by the pearlescent pigment is colored, but even if tilted by 30 ° or more from the reflected light from the light source, When the interference color exhibited by the pearlescent pigment develops and further tilts, the interference color develops gradually and gradually changes to “silver” exhibited by the colored underlayer, confirming a color change without sharpness. It was done.

  Furthermore, when the arbitrary cross section of the obtained character pattern printed matter was observed with the microscope, the micro unevenness | corrugation was confirmed on the printing surface of a colored base layer.

  Further, the pearlescent pigment having an inclination angle difference of 5 ° or less between the angle formed by the pearlescent pigment and the angle formed by the printing surface is limited to 35% of the pigment contained in the color change layer, and the other pearlescent pigments are The inclination angle was 5 ° or more.

  Therefore, the printed matter of the present invention has the effects of (Example 1) to (Example 3) described above. In particular, the printed matter is manufactured by using a logo pattern indicating a manufacturer name and a symbol park. Differentiating from other companies' products because it is possible to print a logo pattern with high design that reduces cost and changes color depending on the viewing angle of the observer on various products such as home appliances and mobile terminals. Can be easily achieved.

  Furthermore, when it is used for a part of the display other than home appliances and mobile terminals, such as advertisements such as posters, changes in the viewing angle, such as notices that the moving observer should be aware of, etc. A color change can be caused by a change in the relative positional relationship with the posting accompanying walking or the like, or by swinging or rotating the posting, and more effective appeal can be performed.

DESCRIPTION OF SYMBOLS 1 ... Printed material 10 ... Colored ground layer 11 ... Color change layer 12 ... Topcoat layer 13 ... Intermediate layer 20 ... Pearlescent pigment 21 ... Angle which a pearlescent pigment makes The angle difference between the print surface and the printing surface of the printing material 30... Light source 40 .. Observer viewpoint 40 a .. Observer viewing angle Light source regular reflection 40 b .. Observer viewing angle Light source non-regular reflection 41. Direction of relative movement between the observer and the printed material 50a: Light source specular reflection light 50b: Light source non-specular reflection light 51: Interference light coloring range exhibited by pearlescent pigment

Claims (5)

A printed material in which a specific pattern is printed on a printed material to which a design is applied, wherein the specific pattern includes at least a colored ground layer serving as a first layer and a color change layer serving as a second layer, The color change layer of the layer is a printed matter composed of a scaly pearlescent pigment and an ink composed of a transparent binder,
An intermediate layer is provided between the colored base layer and the color change layer,
The intermediate layer is provided with ink made of a transparent resin by a printing method,
Before Symbol color change layer, and the angle between flaky pearl luster pigment in an arbitrary cross section, the pigment inclination angle difference between the angle of the printed surface of the substrate is 5 ° or less, any cross section of the total pigment The printed matter, which is 80% or more and has a visible angle of interference color of the pearl luster pigment of at least 15 ° or less with respect to regular reflection light from a light source irradiated on the printed matter. The printed material according to claim 1, wherein the colored base layer, the intermediate layer, and the color change layer are laminated in this order on the printed material. Wherein on the substrate, the claims and the colored base layer, said intermediate layer, said color change layer are laminated in this order, the more the color change layer, a transparent top coat layer is characterized by being laminated Printed matter in any one of 1-2. Wherein the substrate is transparent, the printed matter according to claim 1, and the color change layer on the substrate, and the intermediate layer, the colored underlayer is characterized by being laminated in this order. Wherein the specific pattern, the printed matter according to any one of claims 1 to 4, characterized in that a logo pattern.

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