JP5765110B2 - Printed matter - Google Patents

Description

  The present invention relates to a printed matter.

  Some printed materials have a plastic film with a printing layer. However, if the surface of the plastic film is smooth, it is glossy, so it reflects light and the printed display and design may be difficult to see. is there.

  In order to prevent this reflection of light and to give a high-class feeling, mat varnish is often provided on the surface of a plastic film. For example, there is a packaging material in which a mat varnish is partially provided on one side of a plastic film and a printing layer, an adhesive layer, and a sealant layer are sequentially provided on the other side (Patent Document 1).

  In addition, in order to give the surface of the plastic film a matte feeling, a matte film in which inorganic or organic fine particles are dispersed in the plastic film itself is also used.

  For example, on the back surface of a mat film in which inorganic or organic fine particles are dispersed, a printing layer including a pattern and an entire white printing layer are sequentially applied, and a gloss varnish layer is partially coated on a desired portion of the surface. There is a printed matter (Patent Document 2).

  On the other hand, as another method of providing fine irregularities on the surface of the plastic film, using a pattern roll in which fine convex patterns are regularly formed on the roll peripheral surface, the pattern roll was provided on the surface of the plastic film. There is a method of pressing and transferring the concavo-convex pattern.

  For example, a pattern roll in which a first spiral groove is formed from one end of the cylindrical roll to the other end on the peripheral surface of the cylindrical roll and a second spiral groove is formed so as to intersect the first spiral groove is used. Then, there is a method of transferring a convex pattern of a pattern roll onto a plastic film (Patent Document 3).

  Known documents are shown below.

Japanese Utility Model Publication No. 6-42730 JP 2004-291565 A Japanese Patent Laid-Open No. 2004-223836

  In the method of making the surface of the plastic film uneven as described above, the matte varnish provided on the surface is rubbed off and light reflection cannot be prevented. In addition, a special film such as a matte film must be prepared. Alternatively, it is necessary to create a special mat roll for pressure transfer and provide an extra step. Each has its own problems.

The present invention has been made in view of the above circumstances, and without providing a special process, it is not possible to prevent reflection of light on the surface even if it is rubbed, and light is reflected by a convex pattern on the outer surface. It is an object to provide a printed matter that can suppress, visually recognize the display and design by printing, and obtain an eye catching effect.

In the invention according to claim 1 of the present invention, a base material and a surface film provided with a printing layer are laminated via an adhesive, and a convex shape is formed on the outer surface of the surface film due to a difference in thickness of the adhesive. a printed materials pattern that has been formed with,
Wherein the substrate is a metal foil, a printed materials you characterized in that said surface film is a plastic film.

  The printed matter of the present invention has the above-described configuration, and the base film and the surface film provided with the printed layer are laminated via an adhesive, and the outer surface of the surface film is projected due to the difference in the thickness of the adhesive. As a pattern is formed, there is no special process for manufacturing, and it is not possible to prevent reflection of light on the surface even if it is rubbed. The display and design by printing can be visually recognized, and the eye catching effect can be obtained.

  In the printed matter of the present invention, since the base material is a metal foil and the surface film is a plastic film, the difference in thickness of the adhesive provided on the hard metal foil is uneven on the outer surface of the soft plastic film of the surface film. It is easy to reproduce as a pattern, and the reflection of light on the surface can be suppressed.

The invention according to claim 2 of the present invention is the printed matter according to claim 1 , wherein the difference in thickness of the adhesive is provided in a linear or halftone dot pattern.

  In the printed material of the present invention, the difference in the thickness of the adhesive is provided in a linear or halftone pattern, so that reflection of light can be suppressed over the entire surface of the printed material.

  The printed matter of the present invention does not prevent the reflection of light on the surface even if it is rubbed without providing a special process, suppresses the reflection of light by the convex pattern on the outer surface, and makes it possible to display and design by printing. It can be visually recognized and an eye-catching effect can be obtained.

It is explanatory drawing which showed typically an example of the printed matter of this invention in the cross section. It is explanatory drawing which showed typically the method of manufacturing an example of the printed matter of this invention in the cross section. It is explanatory drawing which showed typically near the surface of the cross section of the gravure plate used for manufacturing an example of the printed matter of this invention. It is explanatory drawing which showed typically the pattern of the gravure plate used for manufacturing an example of the printed matter of this invention, and its cell. (A) A gravure version of a pattern in which parallel lines are formed in an oblique direction. (B) A gravure version of a pattern in which two sets of diagonal parallel lines intersect to draw a rhombus. (C) A gravure version of a dot-like pattern.

Hereinafter, modes for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing a cross section of an example of the printed matter of the present invention.

  First, as shown in FIG. 1, the printed material of this example is formed by laminating a base film 1 and a surface film 3 provided with a printing layer 2 via an adhesive 4. A convex pattern 5 is formed on the outer surface of the film 3.

  As the substrate 1 used for the printed matter of the present invention, a plate-like material such as a metal foil or a hard plastic film can be used. As the metal foil, copper foil, stainless steel foil, aluminum foil or the like is preferably used. As the hard plastic sheet, a film of hard plastic such as polycarbonate, acrylic, or polyethylene terephthalate can be used.

  Moreover, as the surface film 3, the thin film which is easy to convey the difference in the thickness of the adhesive agent 4 to the outer surface which is an opposite surface is preferable. An unstretched film or stretched film of a resin such as polypropylene, nylon, polyethylene, or polyester is preferably used. The thickness is preferably 5 to 50 μm. Furthermore, since the thinner one is easy to convey the difference in the thickness of the adhesive 4, 5 to 20 μm is more preferable.

  As the adhesive 4 to be used, a one-component or two-component reaction curable adhesive is used as an adhesive for dry lamination. For example, a polyester urethane adhesive using a polyester resin as a main agent and an isocyanate resin as a curing agent can be used. Further, an electromagnetic wave curable adhesive may be used. The adhesive 4 having a large molecular weight after curing is suitable for application in a pattern.

  The printing layer 2 is a layer on which a display or design is printed with printing ink. The printing ink to be used is not particularly limited, and the printing ink used for it may be used depending on the printing method used.

  The printing method is not particularly limited, and offset printing, gravure printing, flexographic printing, letterpress printing, or ink jet printing may be used.

  Due to the difference in the thickness of the adhesive 4, the convex pattern 5 formed on the outer surface of the surface film 3 is a linear or halftone dot pattern. Examples of the linear pattern include a pattern in which parallel lines are formed in an oblique direction and a pattern formed in a vertical or horizontal direction. Or it is good also as the pattern made into the grid | lattice form which combined the straight line. Also in the case of a lattice, it may be a pattern in which two sets of parallel lines in the oblique direction intersect, or a pattern in which the parallel lines in the vertical and horizontal directions intersect.

  The distance between the parallel lines is preferably 0.1 mm or more and 1.0 mm or less. By being 1 mm or more, a pattern is visually recognized from the position about 1 m away from the outer surface of the surface film 3, and there exists a consumer's eye catching effect. On the other hand, if the thickness exceeds 1.0 mm, the reflection of light on the surface cannot be sufficiently suppressed, and the display and design of the printed layer 2 are difficult to visually recognize.

  As a halftone dot pattern, a pattern in which three points are vertices of isosceles triangles (including equilateral triangles), and four points are vertices of rectangles and rhombuses (including squares). What is necessary is just to make it the pattern arrange | positioned so that it may become.

  The interval between the dots is preferably 0.1 mm or more and 1.0 mm or less. By being 1 mm or more, a pattern is visually recognized from the position about 1 m away from the outer surface of the surface film 3, and there exists a consumer's eye catching effect. On the other hand, if the thickness exceeds 1.0 mm, the reflection of light on the surface cannot be sufficiently suppressed, and the display and design of the printed layer 2 are difficult to visually recognize.

  The height difference of the convex pattern 5 is preferably 0.1 mm or more. If the thickness is less than 0.1 mm, the reflection of light on the surface cannot be sufficiently suppressed, and the display and design of the printed layer 2 are difficult to visually recognize.

  The upper limit of the height difference is preferably 1.0 mm or less. It is difficult to make a height difference beyond this because the difference in thickness of the adhesive 4 is provided.

Hereinafter, a method for producing an example of the printed material of the present invention will be described.
FIG. 2 is an explanatory view schematically showing in cross section a method for producing an example of the printed matter of the present invention. FIG. 3 is an explanatory view schematically showing the vicinity of the surface of the cross section of the gravure plate used for producing an example of the printed matter of the present invention. FIG. 4 is an explanatory view schematically showing a gravure plate and its cell pattern used for producing an example of the printed matter of the present invention. (A) is a gravure version of a pattern in which parallel lines are formed in an oblique direction. (B) is a gravure version of a pattern in which two sets of diagonal parallel lines intersect to draw a rhombus. (C) is a gravure version of a dot-like pattern.

  In order to manufacture an example of the printed matter of the present invention, as shown in FIG. 2, first, the printed layer 2 is provided by printing on the inner surface side of the surface film 3. Next, the adhesive 4 for dry laminating is applied to the substrate 1 so that the difference in thickness becomes a linear or halftone pattern, and is dried. The surface of the printed layer 2 of the printed surface film 3 is superposed on the coated surface of the adhesive 4 and bonded by pressure bonding to create an example of the printed material of the present invention.

  Application of the adhesive 4 is performed using a gravure plate 7 in which cells 6 are engraved as shown in FIG. The depth (plate depth) of the cell 6 is preferably 0.15 mm or more and 0.3 mm or less. Therefore, it is desirable to carve by the Mir engraving method.

  The opening width of the linear pattern cell 6 or the opening diameter of the dot-like cell 6 is preferably 0.2 mm or more and 1.0 mm or less. If it is less than 0.2 mm, the adhesive 4 is difficult to transfer, and the appearance is impaired. If the thickness exceeds 1.0 mm, it is difficult to form cells even on a meal engraving plate.

  The interval between the adjacent cells 6 is such that the interval between parallel lines or the interval between dots of the convex pattern 5 formed on the outer surface of the surface film 3 is 0.1 mm or more and 1.0 mm or less. Provided.

  The solid content before the application of the adhesive 4 for dry lamination to be used is preferably applied with a solid content as high as possible within the range of the applicable viscosity. Its solid content is 30-40%.

  The gravure plate 7 is made of a cylindrical cylinder as shown in FIGS. 4A, 4B, and 4C, and is bonded by a rotary method. On the surface of the gravure plate 7, cells 6 are formed in a linear or halftone dot pattern.

  In FIG. 4A, spiral cells 6 are formed on the surface of the gravure plate 7. Thus, when the adhesive 4 is applied to the substrate 1, the adhesive 4 is applied to the surface of the substrate 1 in a pattern in which parallel lines are formed in an oblique direction.

  In FIG. 4B, two sets of spiral cells 6 are formed so as to intersect on the surface of the gravure plate 7. Thus, when the adhesive 4 is applied to the substrate 1, the adhesive 4 is applied to the surface of the substrate 1 so that two sets of diagonal parallel lines intersect and draw a rhombus.

  In FIG. 4C, a dot-like cell 6 is formed on the surface of the gravure plate 7. Thus, when the adhesive 4 is applied to the substrate 1, the adhesive 4 is applied to the surface of the substrate 1 in a dot pattern.

  The printed material is wound up after the bonding, but when the application portion of the adhesive 4 increases at a specific position in the width direction of the wound printed material, a phenomenon called telescope (bamboo wrapping) occurs that the portion swells and unwinds. . Consider this point. The cells 6 are preferably applied in a pattern in which parallel lines are formed obliquely on the surface of the gravure plate 7 in a spiral shape.

  Specific examples of the present invention will be described below.

  A spiral cell 6 as shown in FIG. 4A is formed on the surface of the cylinder of the gravure plate 7. The cell 6 was formed with a depth (plate depth) of 0.2 mm, a width of 0.2 mm, and an interval between adjacent cells 6 of 0.2 mm.

  Separately, a 15 μm biaxially stretched nylon film was prepared as the surface film 3, and the printing layer 2 was printed and formed on the back corona-treated surface using a urethane-based gravure printing ink with a gravure printing machine.

  A gravure plate 7 having spiral cells 6 formed in advance is set in the coating part of the dry laminator, and a urethane-based two-component curable adhesive adjusted to a solid content of 35% is used as the adhesive 4 A copper foil of 35 μm is prepared as the substrate 1, unwound from the unwinding part, coated with the adhesive 4 with a gravure plate 7, dried with hot air, printed on the printed layer 2 and printed on the formed biaxially stretched nylon film The surface of the layer 2 was overlapped with the surface to which the adhesive 4 was applied, and pressure-bonded with a nip roll. This was aged in a 40 ° aging room for 5 days to produce an example of the printed matter of the present invention.

  In the finished printed matter, a part of the crushed adhesive 4 spread and almost the entire surface was adhered. Moreover, when the outer surface of the surface film 3 was viewed from a position about 1 m away, a pattern in which parallel lines were formed in an oblique direction was visually recognized, and there was a consumer eye-catching effect.

  Furthermore, the reflection and reflection of light did not make it difficult to see the printed display or design, and the printed display or design was visible. Further, even when rubbed, the convex pattern 5 on the outer surface of the surface film 3 did not disappear, and the display and design by printing did not become difficult to see.

DESCRIPTION OF SYMBOLS 1 ... Base material 2 ... Print layer 3 ... Surface film 4 ... Adhesive 5 ... Convex pattern 6 ... Cell 7 ... Gravure plate

Claims (2)

A substrate, a surface film having a printed layer are laminated via an adhesive, the difference in thickness of the adhesive, the outer surface indicia pattern having a convex shape is that is formed on Surimono the surface film There,
Wherein the substrate is a metal foil, printed materials wherein the surface film is you being a plastic film. The printed matter according to claim 1 , wherein a difference in thickness of the adhesive is provided in a linear or dot-like pattern.

Images