JPH047058Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a base material for high-grade paper containers for storing cosmetics, medicines, etc., and the inner surface printing usually used in these high-grade paper containers has an especially excellent cosmetic effect. It's something that exists.

(Conventional technology) As mentioned above, in high-quality paper cartons, not only are the outside surfaces made beautiful, but solid printing is also applied to the inside surfaces to further enhance the cosmetic effect of the paper cartons. In particular, in the case of conventional printing on the inside surface, a printing layer was placed all the way to the periphery of the paper carton. This can be done by matching the planned punching line of the peripheral edge of the base material in the state of the material, or by extending the printed layer and punching it out, so that the printed layer reaches the peripheral edge of the folding carton base material. Ta.

(Problems to be solved by the invention) With the conventional base material mentioned above, when the base material is punched out from the material and subjected to a process called Thomson processing, a tear phenomenon occurs at the cutting edge of the cutting edge. A type of chattering occurs (this phenomenon is particularly severe when the adhesive strength of the surface coating layer of the material is weak), and this chattering also tears the inner printing layer at the cut end of the base material, which reduces the cosmetic effect. In addition, the paper dust generated by this chatter became colored with a printed layer, which was transferred to the surface of the base material and spoiled its appearance. Especially surface processing (film pasting, press coating,
This chattering is a fatal quality defect for base materials coated with vinyl.

At present, it is extremely difficult to perform a completely intact cut without causing this chatter, so the present invention does not eliminate the chatter itself, but instead creates a material that prevents the inner printed layer from being affected by the chatter. We present a paper container base material that improves the cosmetic effect of the base material and, by extension, the paper container.

(Specific means for solving the problem) In a paper container base material in which a printing layer is provided on the surface that becomes the inner surface during assembly and formation, a margin portion slightly wider than the peripheral edge of the paper container base material is left. By providing a printed layer such as , solid, or a pattern, we can obtain a base material for paper containers that has an inner printed layer that is unaffected by chatter that occurs at the cut end (peripheral edge of the base material) during punching and creasing.

(Example) This invention will be explained in detail below according to an example of the invention shown in the drawings.

As shown in FIG. 1, the base material 1 of this embodiment has four side plates 2, 3, 4, and 5 arranged sequentially from the left side via vertical fold lines, and the lower part of each side plate 2, 3, 4, and 5. The bottom component plates 6... are successively connected to each other via a horizontal fold line, and a cover plate 7 is provided on the top of the side plate 3, and folding plates 8, 8 are provided on the top of the side plates 2 and 4, respectively, via a horizontal fold line. installed in succession,
Furthermore, an adhesive plate 9 is connected to the right side of the side plate 5 via a vertical fold line.

Then, on the inner surface of the base material 1, a solid printing layer 11 is provided on the entire surface, leaving a margin 10 of 0.3 to 0.5 mm width provided around the entire peripheral edge of the base material 1. In this example, a blank space is provided especially in the white area on the left side of the side plate 2.

To assemble the base material 1 of the present invention, the adhesive plate 9 is pasted to the side edge of the side plate 2 to form a rectangular tube shape, and then the bottom component plate 6..., the lid plate 7, and the folded Close each opening with plates 8 and 8.

The present invention is not limited to the above embodiments; for example, the printing layer does not need to be provided on the entire inner surface of the base material, but may be provided only on the lid plate, folding plate, and the upper part of the side plate, that is, only on the parts that are easily visible from the outside. can also do. In this case, the margins should be set according to the printing layer.

In addition, the printing layer itself can be not only solid, but also have a pattern as appropriate, and the printing method can be freely selected from offset, gravure, flexo, etc.

Furthermore, any base material can be used as long as it can be assembled and formed into a paper carton, and it does not matter whether or not there is surface treatment on the printing layer.

(Effects of the invention) The present invention provides a printing layer on the entire inner surface or a predetermined surface of the paper carton base material that can be assembled and formed as described above, leaving a margin provided at the peripheral edge of the base material. In addition, even if vibration occurs at the cutting edge of the cutting edge when punching and forming the base material from the raw material,
Only the margins are torn, the printing layer is not affected in any way, and the paper dust produced by chatter is not colored, so it is not noticeable and the base material, and by extension the paper container, have a very high cosmetic effect.

[Brief explanation of drawings]

What is shown in the drawing is one embodiment of the present invention, and Figure 1 is a plan view. 1...Base material, 10...Margin area, 11...Printing layer.

Claims (1)

[Scope of utility model registration request] A paper carton base material comprising a printed layer on a surface that becomes an inner surface when assembled and formed, characterized in that the printed layer is provided with a margin slightly wider than the peripheral edge of the paper carton base material. Base material for use.