JP2011224803A - Print sheet, intermediate object for the print sheet, and method for manufacturing the print sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a print sheet, an intermediate object, and a method for manufacturing the print sheet that can readily give drawing patterns spatial effect by applying thickness to a soluventborne ink layer to be printed without using any special devices.SOLUTION: A sheet-like substrate 1 includes: an ink wall layer 3 forming a contoured shape of the drawing patterns 2 so that they are disposed with a thickness of 15-125 μm; and the solvent type ink layer 4 forming the drawing patterns 2 by being filled up in the contoured shape.

Description

  The present invention relates to a printing sheet having a three-dimensional effect, a printing sheet intermediate, and a method for producing a printing sheet. More specifically, the present invention can be applied to nameplates, labels, and stickers on which product names, company names, and the like are printed. The present invention relates to a printing sheet, a printing sheet intermediate, and a printing sheet manufacturing method.

  2. Description of the Related Art Conventionally, there are various printing methods for producing a printing sheet in which characters, figures, patterns, a combination of these, etc. (hereinafter collectively referred to as “design”) are three-dimensionally printed on a base material. is there.

  The first printing method is a so-called letterpress printing method in which ink is placed on a pattern formed on a convex portion and the ink is printed on a substrate.

  In contrast to letterpress printing, the second printing method is a so-called intaglio printing method in which ink is filled in the depressions of the plate to form a pattern and print.

  As a third printing method, a mask plate in which pattern holes are formed on the surface of the printing material is polymerized, ink is supplied from the surface of the mask plate, and a squeegee is moved relative to the mask plate, So-called screen printing is performed by filling the ink into the pattern holes, separating the substrate and the mask plate, and transferring and printing ink having a shape corresponding to the pattern holes on the surface of the substrate. Is the method.

  In addition to these printing methods, recently, a base material having a smooth surface, a partial clear layer provided for forming letters and designs on the surface of the base material, and a base material and a partial clear layer are provided. The light in a portion where the partial clear layer is present and a portion where the partial clear layer is present is formed of a transparent whole clear layer mixed with 5 to 20% by weight of a light reflective fine powder having a particle size of 5 to 100 μm. There has also been proposed a printing sheet and a manufacturing method characterized in that the distribution density of the reflective fine powder is made different so that an uneven texture appears between the two parts (for example, see Patent Document 1). .

JP-A-7-89212

  However, these printing methods and printing sheets have the following problems.

  For example, in the first and second printing methods, it is necessary to sculpt irregularities corresponding to characters and designs on the surface of a metal roll, which is a great work and requires skill.

  In the third printing method, since the ink filled in the pattern hole is transferred only to the thickness of the thin mask plate, it is difficult to give a three-dimensional effect to the printed pattern.

  That is, in this third printing method, since solvent-type ink containing a volatile solvent in the ink is generally used, the printing surface can be finished neatly by the surface tension of the volatile solvent, After filling the pattern holes of the mask plate with solvent-type ink, separating the mask plate from the substrate and transferring the design, the volatile solvent is volatilized and the printed design becomes thinner. It is difficult to produce a stereoscopic effect.

  In addition, at the end portion of the printed pattern, the surface portion of the end portion is volatilized to form a curved surface, so that it is difficult to print a sharp design with a sharp edge.

  Therefore, a method of screen printing on a base material using a highly viscous ultraviolet curable ink (hereinafter also referred to as “UV ink”) that irradiates the filled ink with ultraviolet rays and cures in a short time is also known. Yes.

  Since this UV ink is cured in a shorter time than solvent-based ink, the transferred pattern can be printed thickly to create a three-dimensional effect, and the edges of the pattern can be sharpened. It is possible to print.

  However, the UV ink has high viscosity and is cured immediately after being transferred to the substrate, so that the surface of the printed pattern may be finished to a rough surface.

  In addition, in the printing sheet and the manufacturing method of Patent Document 1, the existing printing method is used to provide a three-dimensional effect. In addition to the above problems, 5 to 20% by weight of light reflective fine powder is mixed. In addition, if a transparent entire clear layer is simply printed on the surface, a sufficient thickness cannot be formed on the entire clear layer, which is insufficient for producing a three-dimensional appearance of the design.

  The present invention aims to solve such problems, and provides a thickness to a solvent-based ink layer to be printed by using only a conventionally used ink or printing method without using a special device, etc. The present invention provides a printing sheet, a printing sheet intermediate, and a method for producing a printing sheet that can easily bring about the three-dimensional effect.

To solve the above problem,
The present invention provides a sheet-like base material having an ink wall layer standing up to a thickness of 15 to 125 μm and defining a pattern, and a solvent-type ink layer filled in the outline of the ink wall layer and forming a pattern. , Is provided.

  Here, the "solvent type ink" may be any one that contains a volatile solvent, and the two-component mixed ink obtained by reacting the main agent and the curing agent, or the ultraviolet curable ink contains a volatile solvent. Including ink.

  In the present invention, “inside the contour” means not only the inner part surrounded by the endless ink wall layer but also the opposite surface side where the endless ink wall layers face each other.

  That is, according to the present invention, since the ink wall layer of 15 to 125 μm is erected along the outline of the pattern, the solvent type ink can be filled up to the height of the ink wall layer. Can easily form a solvent-type ink layer having the same height (thickness) as the ink wall layer.

  As described above, according to the present invention, the thickness of the solvent-based ink layer can be easily given a three-dimensional effect by using only conventionally used inks and printing methods without using a special apparatus. It can be brewed.

  Further, in the present invention, on the sheet-like base material, the design formed on the base material, the ink wall layer printed along the contour of the design, and standing up to a thickness of 15 to 125 μm, A solvent-type ink layer having translucency filled in the contour is also provided.

  Here, “having translucency” means being transparent to such an extent that the design can be seen through, and means not only colorless and transparent but also colored and transparent.

  In addition, the thickness of the ink wall layer is not particularly limited, and the three-dimensional effect increases as it is formed thicker. However, if the thickness is too thick, the translucency is reduced. In view of this, it is preferable to stand at 15 to 125 μm as a manufacturing limit value, and it is most preferable to stand the ink wall layer at 30 to 80 μm.

  The ink wall layer is particularly preferably formed of an ultraviolet curable ink. If the ink wall layer is erected with the ultraviolet curable ink, the viscosity is higher than that of the solvent-type ink and the time is short. Since it is cured, the printed ink wall layer can be erected reliably, and even if it is filled with a solvent-type ink layer, it does not easily lose its shape.

  However, as the width of the ink wall layer is made thinner, the rough surface appearing on the surface of the pattern can be reduced. However, if the width becomes too short, there is a risk of bending due to the stress of the solvent-type ink. If the width becomes too long, the rough surface portion will be exposed. Therefore, it is preferable to form with a manufacturing limit value of 0.2 to 1.8 mm, preferably 0.3 to 1.5 mm. It is good to form the width of the ink wall layer.

  Further, the outer wall of the ink wall layer is preferably erected in the direction perpendicular to the surface of the substrate or in the range of ± 5 ° from the perpendicular, It does not matter as long as it can stand up to 125 μm.

  As described above, in the present invention, the solvent type ink can be filled up to the height of the ink wall layer, and even if the volatile solvent contained in the solvent type ink is volatilized, the printing is performed by the surface tension of the volatile solvent. The surface can be finished to a beautiful smooth surface, and at the same time, the thickness of the printed pattern can be increased to a certain level or more, and the three-dimensional effect of the pattern can be fully produced.

  On the contrary, the base material of the present invention includes a material having translucency and having a pattern formed on the surface opposite to the surface provided with the ink wall layer.

  Therefore, since the symbol is visually observed through the base material, the edge of the symbol becomes a clear outline, and can be visually recognized as a sharp symbol with a sharp edge.

  In addition, the ink wall layer of the present invention may have translucency, and a solvent-type ink layer having translucency is filled in the outline of the ink wall layer, so that the entire design is covered. An integrated transparency and three-dimensional effect can be created.

  In addition, by forming the ink wall layer and the solvent-type ink layer of the present invention in the same color, the boundary between the two becomes difficult to be seen, and a sense of unity can be created.

  Further, it is desirable to provide an adhesive layer on the surface opposite to the surface on which the ink wall layer of the present invention is provided. As the adhesive layer, a pressure-sensitive adhesive (adhesive) or a heat-sensitive adhesive (hot Melt).

  Here, the “adhesive layer” is not limited to the one composed only of the adhesive, and includes an adhesive provided with release paper as necessary, for example, a double-sided tape provided with the release paper.

  If such an adhesive layer is provided, a design on which a product name, a company name, or the like is printed can be easily attached to various products.

  Furthermore, in this invention, the printing sheet intermediate body for manufacturing the said printing sheet is also provided, and the said printing sheet intermediate body is standingly arranged by the sheet-like base material at 15-125 micrometers in thickness. An ink wall layer is provided that outlines the pattern.

  According to this printing sheet intermediate, the printing sheet of the present invention can be easily produced simply by filling a desired solvent-type ink layer within the contour of the standing ink wall layer.

  Such a printing sheet and a printing sheet intermediate form an outline of the pattern by setting up an ink wall layer by printing ink having a thickness of 15 to 125 μm along the outline of the pattern. It can be easily manufactured by filling the mold ink to form a solvent-type ink layer.

  Here, the “contour of the pattern” may be a pattern that is pre-printed on the base material, but is not pre-printed on the base material and may be a contour of a pattern that is scheduled to be printed in the future. I do not care.

  Further, if the design is printed on the base material and the solvent-type ink layer has translucency, the outline of the design can be easily seen, and therefore the production can be further facilitated.

  Furthermore, it forms by the manufacturing method of the printing sheet which has the process of printing a pattern on the back surface of the base material which has translucency, and the process of forming an ink wall layer and a solvent-type ink layer on the surface of the said base material by printing. You can also

  Such an ink wall layer and a solvent-type ink layer can be printed by an existing printing method. However, it is particularly preferable to form the ink wall layer and the solvent type ink layer by screen printing because they are inexpensive and can be easily manufactured at high speed.

  According to the printing sheet of the present invention, since the solvent-type ink layer is printed with a large thickness, the three-dimensional effect of the design can be easily produced.

  Moreover, according to the printing sheet intermediate body of this invention, the said printing sheet can be easily manufactured only by filling a desired solvent-type ink layer between the ink wall layers erected beforehand.

  Furthermore, according to the method for producing a printed sheet of the present invention, it is possible to give a sufficient thickness to the solvent-based ink layer to be printed without using a special apparatus.

1 is an overall perspective view of a printing sheet A showing an embodiment of the present invention. It is sectional drawing of the principal part which expanded the part B enclosed with the broken line of FIG. (A)-(d) is process drawing which shows the manufacturing method of the printing sheet A shown in FIG. 1, FIG. (A)-(c) is principal part sectional drawing of the printing sheet A and printing sheet intermediate body A1 which shows other embodiment of this invention.

  Hereinafter, although one embodiment of the present invention is described based on a drawing, the present invention is not limited to this.

  FIG. 1 is an overall perspective view of a printed sheet A showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part in which a portion B surrounded by a broken line in FIG. 1 is enlarged.

  The base material 1 is formed into a sheet shape using a resin such as polycarbonate, PET, hard vinyl, ABS, and AS having translucency.

  The pattern 2 is printed on the back surface (lower surface) of the substrate 1 by an existing method.

  The pattern 2 is screen-printed on the back surface of the substrate 1 with a two-component mixed ink such as epoxy, oxidative polymerization, acrylic or urethane.

  In this embodiment, a black two-component mixed ink is screen-printed on the back surface of the transparent base material 1 around the design 2 to form a peripheral portion 2a, and the design 2 has a gold or silver color. The pattern 2 is formed by screen printing of a glossy two-component mixed ink.

  In contrast to this embodiment, the peripheral portion 2a may be formed by printing the pattern 2 with black two-component mixed ink and printing the glossy two-component mixed ink around it. .

  However, the pattern 2 may be formed by other means. For example, after the pattern 2 is screen-printed on the back surface of the substrate 1, a black two-liquid mixture is applied to the entire back surface of the substrate 1 including the pattern 2. It is also possible to print the mold ink to form the peripheral portion 2a.

  In any method, since the boundary between the pattern 2 and the peripheral portion 2a becomes clear, the edge of the pattern 2 can be clearly displayed.

  In addition, the pattern 2 can also be drawn by unevenness like a stamp without printing.

  In this case, a transparent ultraviolet curable ink is screen-printed along the outline of the pattern 2 on the surface of the substrate 1 on which the pattern 2 is printed on the back surface of the substrate 1, and is about 30 μm. The ink wall layer 3 is erected.

  Here, ultraviolet curable ink (also referred to as “UV ink”) is ultraviolet (when UV is irradiated, a photochemical reaction is caused by the energy of the ultraviolet and is cured from liquid to solid in a short time to form a film. It is the ink which performs.

  The main component of the ultraviolet curable ink is a solvent-free ink of a photopolymerizable resin, a photopolymerization initiator, a colorant, and an auxiliary agent.

  Therefore, UV curable inks differ from solvent inks in that they are not only fast-curing, high film properties, solvent removal, etc., but also have high viscosity and do not dry on the substrate 1 but dry quickly after printing. Is.

  In the ultraviolet curable ink of the present embodiment, it is particularly preferable that the cured film has a high hardness, and specifically, an ink having about 3H by a hardness test (JIS K-5400 8.4 pencil hardness) is preferable.

  The ink wall layer 3 is not only formed in an endless shape (for example, the letter “B” in FIG. 1) around the outline of the pattern 2 as shown in the figure, but also along the outline of the pattern 2 The wall layer 3 may be formed in an end shape (for example, the letter “C” in FIG. 1) or may be formed intermittently.

  The contour of the ink wall layer 3 provided in this way is filled with a solvent-type ink having translucency to form a solvent-type ink layer 4.

  Here, the solvent type ink is used by mixing a main agent and a curing agent, and specifically, a two-component reaction type ink containing about 60 to 80% of a volatile solvent is used.

  Further, as the solvent-type ink, it is also possible to use an ultraviolet curable ink containing a volatile solvent.

  Therefore, the solvent type ink can be filled up to the height of the standing ink wall layer 3, and a thick solvent type ink layer 3 of about 30 μm can be easily formed on the surface of the pattern 2 via the substrate 1. .

  According to such a printing sheet A of the present invention, since the thick solvent-type ink layer 3 of about 30 μm is formed on the surface of the pattern 2 through the substrate 1, the three-dimensional effect of the pattern 2 can be surely produced. it can.

  In the present invention, the solvent-based ink layer is a solvent-based ink that has been cured by irradiation with ultraviolet rays, electron beams, or the like, or has lost its fluidity due to evaporation or drying of the solvent, that is, printing that includes a solvent. It means a cured or dried ink layer formed with the ink for use.

  FIG. 3 is a process diagram showing a method for manufacturing the printed sheet A shown in FIGS. 1 and 2.

  Here, the parts common to FIGS. 1 and 2 are denoted by the same reference numerals, and redundant description is omitted, and only the manufacturing method of the present embodiment will be described below.

  First, a transparent base material 1 is positioned and installed on an existing screen printing apparatus (not shown), and a desired pattern 2 is printed on the back surface of the base material 1 by screen printing, and its peripheral portion 2a is desired. (See FIG. 3A.) ].

  Next, after the substrate 1 is turned upside down, the substrate 1 is positioned again, and a mask plate (non-patterned) having a pattern hole of about 30 μm in thickness from the surface of the substrate 1 along the outline of the pattern 2 is formed. The pattern hole is filled with ultraviolet curable ink and screen-printed, and the ink wall layer 3 is erected on the outline of the pattern 2 [see FIG. 3B. ].

  At this time, the outer wall 31 of the ink wall layer 3 is preferably erected in a perpendicular direction as perpendicular to the surface of the substrate 1 as shown in FIG.

  It should be noted that even if the solvent type ink 4a is filled with a slight deviation from the outline of the ink wall layer 3, the solvent type ink 4a overflows on the outer wall side of the ink wall layer 3 due to the tensile force of the solvent type ink 4a filled in the outline. Can be prevented.

  Next, another mask plate (not shown) in which a pattern hole having a thickness of about 30 μm is formed along the pattern 2 in the contour of the standing ink wall layer 3 is polymerized, and the pattern hole is transparent. Filled with a solvent-based ink 4a and screen-printed (see FIG. 3C). ].

  At this time, it is preferable that the solvent-based ink 4 a protrudes to the surface side of the ink wall layer 3 due to the surface tension of the volatile solvent contained in the solvent-based ink 4 a.

  And if solvent type ink 4a is dried and the volatile solvent contained is volatilized, solvent type ink layer 4 will be integrated with ink wall layer 3, and solvent type ink layer 4 and ink wall layer 3 will be uniform. It is formed in a surface state [see FIG. 3 (d). ].

  If necessary, an adhesive layer 5 can be further formed on the back surface of the substrate 1.

  According to the printing sheet manufacturing method of the present invention for forming the printing sheet A in this way, the printing sheet A on which the design 2 having a three-dimensional effect is drawn can be manufactured easily and inexpensively without using a special apparatus. It can be done.

  FIGS. 4A to 4C are cross-sectional views of the main parts of a printing sheet A and a printing sheet intermediate A1 showing another embodiment of the present invention.

  In addition, the same code | symbol is attached | subjected to the site | part which is common in FIGS. 1-3, and the overlapping description is abbreviate | omitted and below, only the characteristic of this embodiment is demonstrated.

  That is, FIG. 4A shows a printed sheet A in which the pattern 2 and the peripheral portion 2a are screen-printed on the surface of the substrate 1, and the ink wall layer 3 is erected along the outline of the pattern 2. In the meantime, the printing sheet A is formed by filling the solvent type ink layer 4 in the meantime.

  FIG. 4B shows a printed sheet A in which only the pattern 2 is screen-printed on the back surface of the transparent substrate 1, and the ink wall layer 3 is erected along the outline of the pattern 2. Then, the printing sheet A is formed by filling the solvent-type ink layer 4 in the meantime.

  Further, FIG. 4C is a cross-sectional view of the main part of the printing sheet intermediate A1 for producing the various printing sheets A described above. The ink wall layer 3 is erected in advance along the outline of the pattern 2 drawn on one side of the substrate 1.

  In other words, this printed sheet intermediate A1 is the one in which only the ink wall layer 3 is erected along the outline of the pattern 2 drawn in the future on one side of the substrate 1 on which the drawn pattern 2 is not printed. is there.

  With such a print sheet intermediate A1, the print sheet A of the present invention can be easily formed even if the ink wall layer 3 and the pattern 2 are printed later on the print sheet intermediate A1. .

  In the present embodiment, the transparent ink wall layer 3 and the transparent solvent-type ink layer 4 are exemplified, but both may be colored. In short, the present invention has a thickness of 15 to 125 μm on the substrate 1. As long as the ink wall layer 3 is erected and the solvent type ink 4a is filled between them, a thick solvent type ink layer 4 can be formed.

  Therefore, the printing sheet A, the printing sheet intermediate A1 and the printing sheet manufacturing method exemplified in the present embodiment are not particularly limited, and various printing sheets A and printing sheet intermediates can be obtained by manufacturing methods other than those described above. Of course, the body A1 can be manufactured.

A Print sheet A1 Print sheet intermediate 1 Base material 2 Pattern 3 Ink wall layer 4 Solvent type ink layer 5 Adhesive layer

Claims (13)

An ink wall layer standing on a sheet-like base material with a thickness of 15 to 125 μm and defining the outline of the design;
A printing sheet comprising: a solvent-type ink layer filled in the contour to form a pattern. On the sheet-like substrate
A pattern formed on the substrate;
An ink wall layer printed along the outline of the design and having a thickness of 15 to 125 μm;
A printed sheet comprising a translucent solvent-type ink layer filled in the contour. The printing sheet according to claim 1 or 2,
The ink wall layer is a printed sheet formed of ultraviolet curable ink. In the printing sheet as described in any one of Claims 1-3,
The substrate is a printed sheet having translucency and having a pattern printed on the back surface of the substrate. In the printing sheet as described in any one of Claims 1-4,
A printing sheet in which the width of the ink wall layer is 0.2 to 1.8 mm. In the printing sheet as described in any one of Claims 1-5,
The ink sheet is a printed sheet having translucency and having a pattern formed on the surface opposite to the surface on which the ink wall layer is provided. In the printing sheet as described in any one of Claims 1-6,
A printing sheet in which the ink wall layer and the solvent-type ink layer are formed in the same color. In the printing sheet as described in any one of Claims 1-7,
A printing sheet in which an adhesive layer is provided on the surface opposite to the surface on which the ink wall layer is provided. A printed sheet intermediate for producing the printed sheet according to any one of claims 1 to 8,
The printing sheet intermediate is characterized in that an ink wall layer is provided on a sheet-like base material so as to stand up to a thickness of 15 to 125 μm and to define a design outline.   When forming a pattern on a sheet-like substrate, an ink wall layer having a thickness of 15 to 125 μm is erected and formed along the outline of the pattern by printing to form the outline of the pattern. A method for producing a printing sheet, comprising filling a solvent-type ink to form a solvent-type ink layer. In the manufacturing method of the printing sheet according to claim 10,
A method for producing a printing sheet, wherein a pattern is formed on a substrate, and a solvent-based ink having translucency is filled to form a solvent-based ink layer. In the manufacturing method of the printing sheet of Claim 10 or 11,
A step of printing a pattern on the back surface of the substrate having translucency;
Forming an ink wall layer and a solvent-type ink layer on the surface of the substrate by printing. In the manufacturing method of the printing sheet as described in any one of Claims 10-12,
A method for producing a printing sheet, wherein an ink wall layer and a solvent-type ink layer are formed by screen printing.

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