cardboard

Abstract

The object of this invention is to provide a corrugated cardboard that effectively utilizes the structure of the corrugated cardboard and can be widely used as a material for various crafts. [Solution] The cardboard 1 has a three-dimensional structure in which a kraft paper core 4 is sandwiched between a decorative paper surface layer 2, which forms one surface, and a kraft paper surface layer 3, which forms the other surface. When viewed from the decorative paper surface layer 2 side, it looks the same as decorative paper material and does not look like cardboard. The cardboard 1 can be provided in a rectangular sheet shape to be used as a paper material for various crafts, such as DIY, rather than as a packaging material for forming boxes.

Description

[Technical field]

[0001] This invention relates to cardboard that can be used as a material for various crafts. [Background technology]

[0002] Conventionally, corrugated board is folded three-dimensionally to form a box shape and is widely used as a packaging box for transporting various items. This utilizes the characteristics of corrugated board, which is lightweight and strong. Corrugated board generally has a three-layer structure, with a corrugated core (flute) sandwiched in the center and liners attached on both sides as paper surface layers that form the surface. This liner increases the strength and durability of the corrugated board and provides a surface for printing. Kraft paper is usually used as the material for the liner, and the characteristics of the corrugated board change depending on its thickness and quality. Decoration of corrugated board is often done by displaying images of stored items or the manufacturer or seller of the stored items on the liner, which is the surface of the box. An invention has also been proposed to provide corrugated board with excellent design and functionality by printing on the outer surface (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7557174 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, a cardboard box is provided with printing on the outer surface, so the shape is fixed to a box shape and the design and function are also limited.

[0005] The object of this invention is to provide a corrugated cardboard that effectively utilizes the structure of the corrugated cardboard and can be widely used as a material for various crafts. [Means for solving the problem]

[0006] The present invention is a corrugated board characterized in that at least one surface layer is made of decorative paper that is lighter in color than kraft paper.

[0007] The surface layer of the present invention is also characterized by being made of white decorative paper.

[0008] The corrugated board of the present invention is also characterized in that it is provided as a rectangular stock paper. Effect of the Invention

[0009] According to this invention, decorative paper of a lighter color than normal kraft paper is used for at least one surface layer of the cardboard, so that even though the cardboard structure is effectively utilized, it does not feel like cardboard and can be widely used as a material for various crafts.

[0010] In addition, according to the present invention, since the surface layer is white, it can be used as it is, or it can be easily colored.

[0011] In addition, this invention can be used as material paper for various crafts. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a front cross-sectional view of a corrugated cardboard 1 according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a photograph showing the configuration of the cardboard 1 of FIG. 1 in a state close to how it appears from the surface. [Diagram 3] FIG. 3 is a photograph showing a partial comparison of the configuration of the cardboard 1 of FIG. 1 in a state close to a surface view and a bottom view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] An embodiment of the present invention will be described below with reference to Figures 1 to 3. In each figure, the same reference numerals are used for corresponding parts, and duplicated explanations may be omitted, and parts not shown in the figure to be described may be referred to by reference numerals used in other figures. EXAMPLES

[0014] 1 to 3 show the front cross-sectional structure, surface structure, and comparison of the front and back sides of a corrugated board 1 according to an embodiment of the present invention. As shown in FIG. 1, the corrugated board 1 has a three-dimensional structure in which a kraft paper core 4 is sandwiched between a decorative paper surface layer 2, which is one surface, and a kraft paper surface layer 3, which is the other surface. As shown in FIG. 2, when viewed from the decorative paper surface layer 2 side, it looks the same as the decorative paper material and does not look like corrugated board. As shown in FIG. 3, the decorative paper surface layer 2 in (a) is lighter in color than the kraft paper surface layer 3 in (b). The decorative paper used for the decorative paper surface layer 2 is, for example, Kent paper or drawing paper. If it is white, it can be used as it is, and it is easy to color it.

[0015] The cardboard 1 can be provided in a rectangular sheet shape so that it can be used not only as a packaging material for forming a box, but also as a paper material for various crafts such as DIY. The cardboard 1 of this embodiment also has a kraft paper surface layer 3, so that the decrease in strength and the increase in cost as cardboard can be suppressed.

[0016] In the corrugated board 1 of this embodiment, only one surface layer is the decorative paper surface layer 2, and the other surface layer is the kraft paper surface layer 3, but the other surface layer, i.e. both surfaces, may be decorative paper surfaces. If the same decorative paper is used, it is possible to create a material in which both sides are indistinguishable. Also, if the decorative paper is differentiated in quality, color, shade, etc., it can be used as a new craft material. [Explanation of symbols]

[0017] 1. Cardboard 2. Decorative paper surface 3 Kraft paper surface 4 Core

Claims

1. This corrugated board is characterized by being formed by using decorative paper of a lighter color than kraft paper on at least one surface layer.

2. 2. The cardboard according to claim 1, wherein the surface layer is a white decorative paper.

3. 3. The corrugated board according to claim 1 or 2, characterized in that the corrugated board is provided as a rectangular blank.

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