JP3058285U - Packaging material - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a packaging material that can easily package products such as precision machine parts, glass products, and ceramics, and that cannot be easily unwound after packaging. A cold seal adhesive layer (8) is provided on a peripheral edge (1a) of at least one surface of a paper sheet material (1) having cushioning properties and capable of being folded in two or more. The present invention is characterized in that the objects to be packaged are wrapped by being overlapped with each other and pressed to adhere to each other.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a packaging material for packaging products such as precision machine parts, glass products, and pottery.

[0002]

[Prior art]

 When packing and transporting fragile items such as precision mechanical parts, glass products, and ceramics, pack one or more products so that they will not be damaged by vibration, impact, etc. applied during transportation. It is packed in a packing box and packed as necessary, and a number of cushion pieces are further packed as a cushioning material in the gap of the packing box as needed. As the wrapping material, newsprint, wrapping paper, a buffer sheet having many hemispherical air chambers between two resin sheets, or the like is used.

[0003]

[Problems to be solved by the invention]

 However, a buffer sheet having a large number of hemispherical air chambers between two resin sheets has excellent cushioning properties, but it is difficult to dispose of it when it is no longer needed. Occur, causing pollution problems. In addition, although newspapers and wrapping paper are not harmful to humans when incinerated when unnecessary, they do not generate any harmful gas. Therefore, there is a problem of garbage disposal.

[0004] The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide excellent cushioning properties and to be able to be folded in two or more, and to provide precision mechanical parts and glass products. In addition, when packaging fragile items such as ceramics, packaging is simple, and packaging is provided that can be easily sealed without unpacking and that does not cause pollution problems when incinerated when unnecessary. Is to do.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention provides at least one of a sheet material made of paper which has a cushioning property and can be folded in two or more. A packaging material characterized in that an adhesive layer is provided on a peripheral portion on one surface. The second aspect of the present invention is characterized in that an adhesive layer is provided on substantially the entire surface or at an appropriate position on at least one surface of a paper sheet material having a cushioning property and capable of being folded in two or more. In the packaging. A third aspect of the present invention is characterized in that the adhesive layer according to the second aspect is applied to at least one surface of the sheet material in a stripe shape or a lattice shape. In a fourth aspect, the paper sheet material of the first to third aspects is obtained by bonding a flat sheet to the back surface of a corrugated sheet having corrugated rows formed by alternately forming peaks and valleys in a vertical direction. In addition, concave grooves are formed at equal or unequal intervals in a direction substantially perpendicular to the peaks and valleys at the tops of the peaks on the surface of the corrugated sheet. A fifth aspect of the present invention is characterized in that the adhesive layer of the fourth aspect is applied to a top of the corrugated sheet. Claim 6 is characterized in that the adhesive layer of claims 1 to 5 is a cold seal adhesive layer.

According to claims 1 to 3, the paper sheet material can be folded in two or more, so that the article to be packaged can be easily wrapped, and furthermore, the peripheral portion of the paper sheet material. Alternatively, the packaging can be easily performed by overlapping and pressing the adhesive layers provided at appropriate locations, and the packaging cannot be unraveled.

In addition, according to the fourth and fifth aspects, the flat sheet is adhered to the back surface of the corrugated sheet, so that the cushioning property is enhanced. Since the concave grooves are formed at equal or unequal intervals in a direction substantially perpendicular to the direction of the corrugates, the grooves can be easily bent not only along the corrugated lines but also in the direction perpendicular to the corrugated lines.

Furthermore, according to claim 6, since the adhesive layer provided on the paper sheet material is made of a cold seal adhesive, it has low tackiness and adheres when the adhesives are overlapped and pressed, There is no need for release paper since the product does not adhere to hands or products, and single-layer packaging can be performed easily.

[0009]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment, FIG. 1 is a plan view and a side view of a packaging material, FIG. 2 is a perspective view of a state where a product is packaged by the packaging material, and FIG. 3 is XX of FIG. 4 is a perspective view of the packaging material, and FIG. 5 is a cross-sectional view taken along lines AA, BB, and CC in FIG. The packaging material 1 is used, for example, when packaging and transporting fragile items such as precision mechanical parts, glass products, and ceramics, in order to prevent damage to the items to be packaged due to vibration, impact, and the like applied during transportation. Used for

As shown in FIG. 1, the corrugated sheet 2 has a rectangular shape. For example, corrugated rows are formed by alternately applying peaks 3 and valleys 4 in a vertical direction to a paper sheet material such as a corrugated cardboard. It can be a core of corrugated cardboard with a corrugated surface. As shown in FIGS. 4 and 5, a flat sheet 5 made of paper such as corrugated cardboard or kraft paper is bonded to the back of the corrugated sheet 2 on the back of the valley 4. Therefore, a hollow portion 6 is formed between the peak portion 3 of the corrugated sheet 2 and the flat sheet 5. It is preferable that 20 to 100 peaks 3 exist per 30 cm of the sheet material.

Further, a number of concave grooves 7 are formed at equal or irregular intervals in a direction substantially orthogonal to the peaks 3 and the valleys 4 at the step tops of the surface peaks 3 of the corrugated sheet 2. The concave groove 7 may be formed in the process of bonding the flat sheet 5 to the back surface of the corrugated sheet 2, or may be formed in the step of forming the corrugated sheet 2.

A projection 7 a projecting to the back surface side of the corrugated sheet 2 corresponding to the concave groove 7 is preferably bonded to the flat sheet 5. This bonding is performed by bonding the flat sheet 5 to the back surface of the corrugated sheet 2 and then passing between a pair of forming rollers disposed at a predetermined roller interval before the adhesive solidifies. It can be performed simultaneously with the forming of the groove 7.

In the packaging material 1 configured as described above, since the valleys 4 of the corrugated sheet 2 are adhered to the flat sheet 5, the valley 4 is weak and it is easy to bend the packaging material 1 along the valleys 4. In addition, since the groove 7 perpendicular to the peaks 3 and the valleys 4 is also in contact with the flat sheet 5, the packaging material 1 can be easily bent along the groove 7.

Further, an adhesive layer 8 on which an adhesive is applied in a belt shape by applying or other means is provided on a peripheral portion 1 a on one surface of the packaging material 1. In the present embodiment, the adhesive layer 8 is provided at least on the top of the peak 3 of the corrugated sheet 2 as shown in FIGS. 4 and 5.

The adhesive layer is made of, for example, a cold seal adhesive containing a natural rubber-modified resin as a main component. This cold seal adhesive adheres when the adhesives are overlapped and pressed, but it does not adhere to the hand or the article even if touched or pressed unless the adhesive layers are overlapped. And the packaging material 1 is easy to handle.

Next, the operation of the packaging material 1 configured as described above will be described. For example, when wrapping fragile items such as precision mechanical parts, glass products, and ceramics, the packaging material 1 bends substantially in accordance with the shape of the article to be packaged. Therefore, as shown in FIG. 2 and FIG. 3, the corrugated sheet 2 of the packaging material 1 is unfolded as an upper surface, and the above-mentioned packaged object W such as a fragile article is placed on the corrugated sheet 2.

Then, four sides of the packaging material 1 are erected to wrap the object W to be packaged, the adhesive layers 8 provided on the peripheral edge 1 a of the packaging material 1 are overlapped, and the overlapping surface is pressed by a finger. Then, the adhesive layers 8 adhere to each other, and can wrap the entire packaged object W. In addition, the packaging is not easily unwound due to the adhesion between the adhesive layers 8, and no tape or string is required, so that the packaging is compact. In addition, it is not bulky, and the article to be packaged W is covered by the hollow portion 6 of the crest 3 of the packaging material 1, so that it has excellent cushioning properties and can be transported with ease even if it is a fragile product.

Furthermore, since the packaging material 1 is made of paper, and the valleys 4 and the concave grooves 7 are provided substantially orthogonally, the fingers are provided along the valleys 4 or the concave grooves 7 as necessary. Thus, the cut can be easily made, the packaging becomes easier, and the cut can be made small according to the size of the article W to be packaged.

FIGS. 6 to 8 show a second embodiment, in which the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the adhesive layer 8 is provided on one surface of the packaging material 1, that is, substantially the entire surface of the corrugated sheet 2. The substantially entire surface of the corrugated sheet 2 means that the adhesive layer 8 is provided on at least the step top of the crest 3 of the corrugated sheet 2, and need not be provided on the valley 4.

According to the present embodiment, the packaging material 1 is unfolded with its corrugated sheet 2 as the upper surface, and one or a plurality of items to be packaged W are placed on one side from the intermediate portion in the longitudinal direction of the packaging material 1. The wrapping material 1 is folded in half from the middle part, and the other side is covered with the article to be packaged W. In this state, the adhesive layers 8 are opposed to each other in the portion where the article W to be packaged is not present. Therefore, the adhesive layers 8 are overlapped with each other, and the overlapped portion is pressed with a finger or the like, whereby the adhesive layers 8 are joined to each other. Are adhered. Accordingly, the upper and lower surfaces and the outer peripheral surface of the article to be packaged W are covered by the hollow portion 6 of the crest 3 of the packaging material 1, and the articles to be packaged W are individually immovably held. There is an effect that it can be prevented.

FIGS. 9 and 10 show a modification of the second embodiment. FIG. 9 shows a wavy sheet 2 of a packaging material 1 provided with an adhesive layer 8 in the form of vertical stripes. An adhesive layer 8 is provided on the corrugated sheet 2 of the packaging material 1 in a grid pattern. In any of the modifications, the adhesive layer 8 is provided on the peak 3 of the corrugated sheet 2, and need not be provided on the valley 4.

According to the above-described modified example, similarly to the second embodiment, the packaging material 1 is developed with the corrugated sheet 2 as its upper surface, and one or a plurality of items to be packaged W are placed on the packaging material 1. Then, the wrapping material 1 is folded in two and covered with the article to be packaged W. In this state, since the adhesive layer 8 is opposed to the portion where the packaged object W does not exist, the adhesive layers 8 are overlapped with each other, and the overlapped portion is pressed by a finger or the like, so that the adhesive layers 8 are attached to each other. Glued. In this case, instead of folding the packaging material 1 in two, the two packaging materials 1 may be stacked so that the adhesive layers 8 overlap each other, and the article W to be packaged may be interposed therebetween. . Accordingly, the upper and lower surfaces and the outer peripheral surface of the article to be packaged W are covered by the hollow portion 6 of the crest 3 of the packaging material 1, and the articles to be packaged W are individually immovably held. There is an effect that it can be prevented.

In each of the above-described embodiments, the packaging material is such that corrugated rows are formed by alternately applying peaks and valleys vertically to a paper sheet material such as corrugated paper. The material is not limited to corrugated cardboard as long as it has cushioning properties. Although the adhesive layer is provided on one side of the sheet material, it may be provided on both sides. Further, the packaging material is not limited to a rectangular shape, but may be a circle or an ellipse, may be cut to facilitate packaging, and the shape is not limited.

[0024]

[Effect of the invention]

 As described above, according to the present invention, the packaging material has cushioning properties, and the adhesive layer is provided on the periphery, so that the packaged object can be easily packaged, and the adhesive layers are superposed. Since it is bonded by pressing, it can be securely sealed and cannot be easily released. Therefore, packaging tape and wrapping string are not required, and the packaging is compact. Moreover, because of its excellent cushioning properties, there is an effect that even fragile products such as precision mechanical parts, glass products, and ceramics can be transported with confidence. Further, there is an effect that incineration is sufficient if unnecessary, and there is no possibility of causing a pollution problem. In addition, when the adhesive layer is formed of a cold seal adhesive, as long as the adhesive layers are not overlapped, they do not adhere to each other even when a finger or a packaged object touches, and handling during packaging is easy. It is easy to store, can be used repeatedly, and is economical.

[Brief description of the drawings]

FIG. 1 is a plan view and a side view of a packaging material showing a first embodiment of the present invention.

FIG. 2 is an exemplary perspective view showing a state where the product is packaged by the packaging material of the embodiment;

FIG. 3 is a sectional view of the same embodiment, taken along line XX of FIG. 2;

FIG. 4 is a perspective view of the packaging material of the embodiment.

5A and 5B show the same embodiment, FIG. 5A is a cross-sectional view taken along line AA of FIG. 4, FIG. 5B is a cross-sectional view taken along line BB of FIG.
Is a cross-sectional view along the line CC.

FIG. 6 is a plan view and a side view of a packaging material showing a second embodiment of the present invention.

FIG. 7 is an exemplary perspective view showing a state where the product is packaged by the packaging material of the embodiment;

FIG. 8 is a sectional view of the same embodiment, taken along line DD in FIG. 7;

FIG. 9 is a plan view and a side view of a packaging material showing a first modification of the second embodiment of the present invention.

FIG. 10 is a plan view and a side view of a packaging material showing a modified example 2 of the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging material 2 Corrugated sheet 3 Crest part 4 Valley part 5 Flat sheet 7 Concave groove 8 Adhesive layer

Claims (6)

[Utility model registration claims] 1. A packaging material characterized in that an adhesive layer is provided on a peripheral portion of at least one surface of a paper sheet material having a cushioning property and capable of being folded in two or more. 2. An adhesive layer is provided on substantially the entire surface or at an appropriate position on at least one surface of a paper sheet material having a cushioning property and capable of being folded in two or more. Packaging materials. 3. The packaging material according to claim 2, wherein the adhesive layer is provided on at least one surface of the sheet material in a striped or lattice shape. 4. The paper sheet material is formed by bonding a flat sheet to the back surface of a corrugated sheet formed by alternately forming peaks and valleys in a vertical direction to form a corrugated row. The groove according to any one of claims 1 to 3, wherein concave grooves are formed at equal or unequal intervals in a direction substantially orthogonal to the crests and valleys at the top of the surface crests. Packaging materials. 5. The packaging material according to claim 4, wherein the adhesive layer is applied to a top of the corrugated sheet. 6. The packaging material according to claim 1, wherein the adhesive layer is a cold seal adhesive layer.