JPS6115018Y2 - - Google Patents

Description

[Detailed description of the invention] A video cassette case for television recording is housed in a packaging sac for protection during distribution, storage, and handling.

The present invention relates to an improvement of this packaging bag, and in particular, the physical properties and cosmetic properties of the surface of the packaging bag are improved.

Usually, this type of packaging sack is made of cardboard, a synthetic resin sheet, or a composite laminated sheet of these materials, which is then adhesively molded into a sack shape after being subjected to necessary printing.

The purpose of this invention is to give the surface of the above-mentioned packaging sack a brushed metallic luster and a three-dimensional effect with a colored printed pattern, as well as to improve the surface's anti-slip properties and abrasion resistance. A thin aluminum layer is provided on the surface, a colored printed layer pattern is provided on the top surface, and a large number of transparent small protrusions arranged in a pattern are distributed and fixed on the top surface of the thin aluminum layer using light-curing transparent ink by screen printing. By making this surface a sack surface, the above-mentioned effects are obtained.

The present invention will now be described with reference to the embodiments shown in the drawings. FIG. 1 is a perspective view of a packaging sack S having a desired pattern symbol 3 printed on its outer surface.

FIG. 2 is a plan view of a blank board showing the surface of the blank board on which the packaging sack S is developed;
FIG. 3 is an enlarged side view of a section of the blank board including a colored printed layer 3 for displaying a pattern.

As shown in Figure 3, the sheets constituting the packaging sack S are made of cardboard, a synthetic resin sheet, or a composite laminated sheet of these, and the upper surface is laminated with an aluminum film such as aluminum foil or vacuum-deposited aluminum film. A surface glossy base sheet 1 having a thin layer 2 is used as a material, and a second
A colored printing layer 3 with a desired pattern symbol suitable for the blank board shown in the figure is applied by an appropriate printing method, and then a light-curable transparent ink is applied on the top surface by a screen printing method, including the printed surface of the pattern symbol 3. A large number of transparent small protrusions 4 are distributed and fixed on the thin layer surface so as to be arranged in an appropriate pattern, and this is cut into a blank board shape as shown in FIG. A blank board is obtained by marking the lines.

As shown in FIG. 2, the blank board has a front panel 11, a back panel 12, and a back panel 13 that are continuous in the horizontal direction with bent indented lines, and bent pieces 14 and 15 are formed on the top and bottom of the front panel 11. , trapezoidal flaps 19 and 20 are provided on the top and bottom of the back panel 12, and bending pieces 16 and 17 are provided on the top and bottom of the back panel 13 with bending indented lines, respectively. Piece 16,1
The side edges of the back panel 7 are sloped edges, and in order to avoid excessively thickening the part where the flaps 19 and 20 are overlapped during sack molding, the triangular part demarcated by broken lines is pressed. Thin wall portion 21,
It is listed as 22.

Then, the front and back panels 1 which will be the outer surface of Satsuku S
1, 13, the back panel 12 and the folded pieces 14, 15 of the front panel 11 are printed with a desired pattern display,
Furthermore, an array pattern of a large number of transparent small protrusions 4 is screen-printed on the surface using photo-curable transparent ink, and is printed and hardened on the entire surface or partially with a portion remaining.

The above-mentioned transparent small protrusions are formed by screen printing with photocurable ink, which contains almost no volatile components and is printed in a fine halftone pattern with a printing temperature of 3000 to 3000. This is because it is completely cured by irradiation with ultraviolet light in the 4500 Å range for a few seconds, and has excellent adhesion strength, hardness, and transparency.As this photocurable ink, unsaturated polyesters and acrylics with radically polymerizable groups are used. Vinyl monomer for resin, epoxy resin, etc.
Those containing a photosensitizer are preferably used.

Figure 5 shows an example of an arrangement pattern of transparent small protrusions. A shows a parallel linear diamond pattern, B shows a parallel straight orthogonal checkered pattern, and these are repeated in the vertical and horizontal directions to form a pattern surface. Of course, the unit pattern can be appropriately selected from various shapes such as concentric circles, wave shapes, and radial shapes.

FIG. 4 is an enlarged cross-sectional side view of a part of a sheet constituting a packaging sack in another embodiment, in which a transparent synthetic resin layer 5 is formed on the surface of a glossy base sheet 1 having a thin aluminum layer 2 surface. In this case, a pattern consisting of small transparent protrusions 4 is formed by screen-printing a light-curable transparent ink on the colored printed layer 3, and a heat-adhesive synthetic resin layer 6 is laminated thereon. After making a blank board as shown in Figure 2, the upper and lower bent pieces 1 of the back panel 13 are
6, 17 surface and upper and lower folded pieces 14 of front panel 1,
The back side of the case 15 and the front and back sides of the flaps 19 and 20 are provided with thermal adhesive properties, and can be molded by thermocompression bonding without using any other adhesive, and the video cassette case is placed on a blank board. hand,
Hot air jet heating and pressure bonding means can be used when forming the sack packaging.

A specific example of the laminated structure of the above-mentioned constituent sheets is as follows.

(1) Base paper (manufactured by Daishowa Paper Co., Ltd., high quality paper, each product Ultra H550g) (2) Aluminum foil (7μ thickness) (3) PVC resin film (15μ thickness) (4) Photocurable colored ink remover Set Printing Layer (5) Photocurable Transparent Ink Silk Screen Printing Layer Since the present invention has the above structure, the thin aluminum layer 2 and the colored printing layer 3 on the surface are protected by a group of hard transparent small protrusions. The metallic luster of the aluminum becomes a matte luster, and the color tone of the printed pattern changes depending on the direction in which the transparent small protrusions are arranged, and the light reflected from the colored printing layer also changes due to the direction of the transparent small protrusions. Due to the effect of the lens, it changes in a complex manner, producing a cosmetic effect that gives the viewer a pattern color that combines iridescent patterns, faded patterns, metallic luster patterns, etc., and due to the presence of the small protrusions,
It is highly effective as a packaging bag for video cassette cases, as it prevents slipping during handling, prevents fingerprints from sticking to the case surface, and prevents dust from adhering to the case because the thin aluminum layer does not generate electrostatic charge. It is something.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. Figure 1 is a perspective view of the product of the present invention, Figure 2 is a plan view of a blank board with the product developed, Figure 3 is an enlarged partial cross-sectional side view of the blank board, and Figure 4 is a portion of a blank board in another embodiment. The enlarged side view and FIG. 5 are plan views illustrating an arrangement pattern of transparent small protrusions. DESCRIPTION OF SYMBOLS 1...Surface glossy base sheet, 2...Aluminum thin layer, 3...Colored printing layer, 4...Transparent small projections, 5...Transparent synthetic resin layer, 6...Thermoadhesive synthetic resin layer.

Claims (1)

[Claims for Utility Model Registration] 1. A colored printed layer 3 is provided on the upper surface of a glossy base sheet 1 having a thin aluminum layer 2 on the surface thereof, and a colored printed layer 3 is provided on both sides of the thin aluminum layer 2 and colored printed layer 3. A packaging bag for a video cassette case, characterized in that the bag surface has a large number of small transparent protrusions 4 arranged in a pattern by screen printing with light-curable transparent ink. 2. Packaging of a video cassette case according to claim 1, wherein the thin aluminum layer 2 on the surface of the surface-glossy base sheet 1 is formed by laminating aluminum foil or by vacuum vapor deposition of aluminum. Satsuku. 3. A packaging bag for a video cassette case according to claim 1, wherein the surface aluminum thin layer 2 of the surface glossy base sheet 1 has a transparent synthetic resin coating layer 5.