Package

Abstract

To provide a package for storing in a warehouse and delivering articles by bagging the articles in a protected state using a paper packaging material with low environmental load without using plastic packaging material.SOLUTION: A package 10 has a paper back cushioning sheet 12 on which an article 14 is placed, and a paper front cushioning sheet 13 that covers the top surface of the article 14. In the back cushioning sheet 12 and the front cushioning sheet 13, first extension parts 12a, 13a that extend from the article 14 to one side in the stretching direction and overlap, and second extension parts 12b, 13b that extend to the other side and overlap, are compressed in the overlapping direction and partially joined, so that the article 14 is covered with the front and back cushioning sheets 12, 13 and primarily packaged. The primarily packaged article 15 is covered with craft paper 16, 17 and secondarily packaged.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a package that protects an item. [Background technology]

[0002] With the expansion of online shopping, the business of delivering various goods by post or courier has increased dramatically, and packages that have the function of protecting goods temporarily stored in a warehouse or the like and goods during delivery from damage have been known. Patent Document 1 discloses a package that contains and protects goods in a bag made of craft paper with plastic bubble cushioning adhered to the inside surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-53103 A Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, as part of measures against environmental problems such as marine pollution and global warming caused by plastic waste, there has been a growing momentum for efforts to eliminate the use of plastic, such as the strengthening of regulations aimed at reducing plastic waste. However, the packaging used in these products has a large environmental impact because it uses plastic bubble cushioning materials to protect items, and there is a growing momentum for the adoption of environmentally friendly packaging materials by reducing the weight and volume of such packaging plastic materials and by replacing plastic packaging materials with paper.

[0005] The present invention aims to provide a package for storing an article in a warehouse, delivering the article, etc., by bagging the article in a protected state using a paper packaging material that has a low environmental impact, without using plastic packaging materials. [Means for solving the problem]

[0006] In order to solve the above problems and achieve the intended purpose, the first means is: A paper sheet is provided with a plurality of rows of cuts (11), and the paper sheet is stretched in a direction intersecting the longitudinal direction of the cuts (11) to form a three-dimensional mesh-like cushioning sheet, which is then cut to a predetermined length to provide a front cushioning sheet (13) and a back cushioning sheet (12) for covering the front and back of an item (14); In the stretching direction of the cushioning sheet, the extensions (12a, 13a, 12b, 13b) of the front cushioning sheet (13) and the back cushioning sheet (12) extending to one side and the other side of the article (14) are partially compressed at the overlapping portions where they overlap each other, so that the article (14) is covered with the cushioning sheets (12, 13) and primary packaged, The primary package (15) covered with the cushioning sheets (12, 13) is then covered with craft paper (16, 17, 32) and sealed into a bag for secondary packaging. This configuration provides an environmentally friendly package in which the product is protected by packaging material that places less of a burden on the environment. In addition, since the front and back cushioning sheets are pressure-bonded, there is no need to use adhesive or a cushioning sheet with an adhesive layer, and packaging costs can be reduced. In addition, the package can be manufactured by covering the packaged product with a cushioning sheet for primary packaging, and then packaging it with craft paper for secondary packaging, making it easy to automate packaging.

[0007] The second means is characterized in that the extensions (12a, 13a, 12b, 13b) are partially pressure-bonded at a plurality of locations spaced apart in a width direction intersecting with the stretching direction of the cushioning sheet. With this configuration, the cushioning sheet can be more firmly pressed than when the extended portion is pressed at only one point, preventing the pressed portion from separating before the secondary packaging is performed.

[0008] The third means is characterized in that the secondary packaging is made of kraft paper (16, 17, 32) with a heat sealing agent applied to the inner surface, and three or four sides of the overlapping portion covering the primary packaged product (15) are heat sealed. With this configuration, the item is protected by the cushioning material in the primary packaging, bagged in craft paper and sealed, effectively protecting the item from the adhesion of dust, dirt, and other contaminants during storage and distribution after packaging.

[0009] The fourth aspect is that the secondary wrapping of the craft paper (16, 17, 32) is provided with an opening means (19) for opening the wrapping body (10, 31, 35). This configuration makes it easier to open the package that is secondary wrapped in craft paper.

[0010] The fifth means is that, in contrast to the back cushioning sheet (12) extending flat along the back surface of the article (14), the front cushioning sheet (13) covers the front surface of the article (14) and the side surface opposite the stretching direction of the cushioning sheet with a length taking into consideration the length of the cushioning sheet in the stretching direction of the article (14) and the thickness in the front and back directions, and the extension portions (12a, 13a, 12b, 13b) of the front cushioning sheet (13) and the back cushioning sheet (12) are overlapped and pressed against each other so that the extension end portions are at the same position. According to this configuration, by setting the front cushioning sheet longer than the back cushioning sheet by an amount that takes into account the length corresponding to the thickness of the article in the front-back direction, and overlapping and pressing the extended portions, the front and back of the article can be covered with the same stretched cushioning sheet, and the protective conditions of the article do not differ on the front and back. Also, when packaging, the back cushioning sheet is placed face down, and the article is placed on it, and the top of the article is covered with the front cushioning sheet, allowing for good automatic packaging. Effect of the Invention

[0011] According to the present invention, a package with a cushioning function can be provided in which a primary package, in which an article is covered with a paper cushioning sheet for protecting the article, is secondary packaged with craft paper and packed in a bag. In other words, a package with a cushioning function can be provided that uses a packaging material that does not use a plastic packaging material and has a low environmental impact as a packaging material for packaging the article, for example, for storing or delivering a product. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a schematic vertical cross-sectional view showing the packaging body. [Diagram 2] FIG. 2 is a schematic perspective view showing a primary package in which an item is covered with a cushioning sheet. [Diagram 3] 4 is a schematic perspective view showing an enlarged view of a main portion of a joint between front and back cushioning sheets. FIG. [Figure 4] FIG. 2 is a schematic perspective view showing a packaging body. [Diagram 5] 1 is a schematic perspective view showing a state in which a package that is secondary packaged with kraft paper has been partially cut open to expose a primary package. FIG. [Figure 6] FIG. 2 is an explanatory diagram showing the process of producing a package (by an automatic packaging machine). [Figure 7] FIG. 2 is an explanatory diagram showing a strip-shaped cushioning sheet pulled out from a cushioning roll. [Figure 8] FIG. 13 is an explanatory diagram of another embodiment showing a pillow package secondary packaged with kraft paper. [Figure 9] FIG. 13 is an explanatory diagram of another embodiment showing a three-sided sealed package secondary packaged with kraft paper. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Next, preferred embodiments of the packaging body according to the present invention will be described with reference to the accompanying drawings. EXAMPLES

[0014] The packaging body 10 of the embodiment shown in Fig. 1 is a packaging body in which a primary package 15 in which the front and back (top and bottom) of an item 14 are covered with paper cushioning sheets 12, 13 is secondarily packaged with craft paper 16, 17. The cushioning sheets 12, 13 are, for example, strip-shaped paper sheets made of craft paper, with multiple rows of linear incisions 11 arranged in a staggered pattern, and are stretchable in a direction intersecting the longitudinal direction of the incisions 11 (stretching direction), and the incisions 11 are stretched to form a three-dimensional mesh shape, and the cushioning sheets 12, 13 are cut to a predetermined length. The package 10 has a back cushioning sheet 12 that covers the back (lower) surface of the item 14 and a front cushioning sheet 13 that covers the front (upper) surface of the item 14, and the front and back cushioning sheets 12, 13 are partially pressed together near the extending ends of the overlapping portions of the first extending portions 12a, 13a that extend to one side of the item 14 and overlap each other, and the overlapping portions of the second extending portions 12b, 13 that extend to the other side of the item 14 and overlap each other, in the stretching direction of the front and back cushioning sheets 12, 13, so that the item 14 is covered and primarily packaged by the front and back cushioning sheets 12, 13. The package 10 is then manufactured by secondary packaging the primary packaged item 15 as a bag sealed around the periphery of the primary packaged item 15 in the craft papers 16, 17 that cover the primary packaged item 15.

[0015] 2 and 3, the first extending portions 12a, 13a and the second extending portions 12b, 13b in the cushioning sheets 12, 13 on the front and back of the primary package 15 are formed with joints 18 at multiple locations (two locations in the embodiment) spaced apart in the width direction intersecting with the stretching direction, where both cushioning materials 12, 13 are crimped together. The joints 18 are portions where the first extending portions 12a, 13a and the second extending portions 12b, 13b overlapping one above the other are clamped at a predetermined pressure by a crimping tool with meshing teeth of concave and convex portions, so that narrow concave and convex portions are crimped alternately in the width direction, and the first extending portions 12a, 13a and the second extending portions 12b, 13b are crimped and deformed without using an adhesive. When primary packaging is performed by an automatic packaging machine, for example, as shown in Fig. 6, when the overlapping portions of the first extension parts 12a, 13a and the second extension parts 12b, 13b are clamped from above and below by pressure members (joints) 26a, 26b, the concaves and convexes of the pressure members 26a, 26b engage with a predetermined pressure, and the extension parts 12a, 13a, 12b, 13b are pressed against each other, deforming into the concaves and convexes, and are joined together without being separated from each other. The joint part 18 is provided at a position away from the extension ends (outer edges) of the first extension parts 12a, 13a and the second extension parts 12b, 13b by a predetermined length toward the article side. The front cushioning sheet 13, in a state formed in a three-dimensional mesh shape, is set to a length taking into consideration the length of the cushioning sheet in the stretching direction and the thickness in the front and back directions of the article 14, and the front cushioning sheet 13 covers the front surface of the article 14 and the side surface opposite the stretching direction of the cushioning sheet, and its extensions 13a, 13b overlap by a predetermined length with the extensions 12a, 12b of the back cushioning sheet 12 extending from the article 14. In addition, the extensions 13a, 13b of the front cushioning sheet 13 and the extensions 12a, 12b of the back cushioning sheet 12 extending flat along the back surface of the article 14 are pressed against each other while overlapping with each other so that their extending ends are at the same position. In other words, the front cushioning sheet 13 is set to be longer than the back cushioning sheet 12 by an amount that takes into account the length corresponding to the thickness of the item 14 (approximately twice the length of the thickness), and the front and back of the item 14 are covered with the front cushioning sheet 13 and the back cushioning sheet 12, which are formed into a three-dimensional mesh shape and are not subjected to tension.

[0016] 4 and 5, the package 10 is secondary packaged by covering the front and back (top and bottom) of the primary package 15 with rectangular sheets of craft paper 16, 17, and heat-sealing the overlapping parts of the craft paper 16, 17 on all four sides surrounding the primary package 15, and the primary package 15 is sealed by bagging. The inner surfaces of the craft paper 16, 17 are, for example, part-coated or other heat-seal coating treatment, and the sealant material (heat seal agent) applied to the inner surface is melted by clamping the surfaces of the craft paper 16, 17 with a heated seal bar or the like, and a seal part 10a where the front and back craft paper 16, 17 are welded is formed in the package 10. In addition, it is preferable that an opening notch 19 is formed on the edge parts of the craft paper 16, 17 as an opening means, for example. The opening notch 19 may be a cutout having various shapes such as a V-shape, a U-shape, a semicircle, a trapezoid, or a U-shape, or may be a linear cut or perforation. In a configuration in which the front and back cushioning sheets 12, 13 extend from both sides in the width direction of the article 14, the side extensions 12c, 13c of the cushioning sheets 12, 13 facing the width direction of the article 14 are rolled up into the side of the article 14 when the primary packaged product 15 is covered with the front and back craft papers 16, 17 during secondary packaging, and the front and back craft papers 16, 17 are brought together and heat-sealed outside the side extensions 12c, 13c of the primary packaged product 15, and the side of the width direction of the article 14 is protected by the side extensions 12c, 13c.

[0017] In the packaging body 10 of the embodiment, the front and back cushioning sheets 12, 13 that cover the item 14 to protect it and the craft papers 16, 17 that cover the primary package 15 are all made of paper packaging materials, making it possible to provide a packaging body with cushioning function that does not use plastic packaging materials and has a low environmental impact. In other words, by using packaging materials with a low environmental impact as all packaging materials that package the item 14, it is possible to provide an environmentally friendly packaging body with cushioning function that is used, for example, for storing and delivering products. In addition, since the front and back cushioning sheets 12, 13 that protect the item 14 are pressure-bonded, there is no need to use adhesives or cushioning materials with adhesive layers, and the total cost including the manufacturing cost and the packaging cost can be kept low (inexpensive).

[0018] In the package 10 of the embodiment, the first extensions 12a, 13a and the second extensions 12b, 13b of the front and back cushioning sheets 12, 13 are only crimped at two points spaced apart in the width direction, so that the pressure applied during crimping can be set to a lower value than when the extensions 12a, 13a, 12b, 13b are crimped over the entire width direction. In addition, when removing the cushioning covering the item 14, the joint (crimped part) 18 can be removed with a relatively light force, so that the front and back cushioning materials can be easily separated and removed. Furthermore, when removing the cushioning from the item 14, the cushioning material does not break into small pieces and fall apart, such as scattering as garbage. Furthermore, compared to when the extensions 12a, 13a, 12b, 13b are partially crimped only at one point, the crimped state of the cushioning sheets 12, 13 can be improved to prevent the crimped parts from separating before the secondary packaging. Furthermore, since the package 10 is a secondary package in which the primary packaged product 15 is sealed with the craft papers 16, 17, the product 14 can be effectively protected during storage and distribution after packaging, and the product 14 can be protected from dirt, dust, and other foreign matter entering the package, and from dirt, dust, and other contaminants adhering to the product 14. Furthermore, by forming an opening notch 19 in the craft papers 16, 17, the package 10 can be easily opened as a secondary package, serving as an outer package packaged in a bag shape. Furthermore, in the packaging body 10, the primary packaged item 15 covered with cushioning material is secondarily packaged with craft paper 16, 17, so that the lateral extension portions 12c, 13c of the cushioning material sheets 12, 13 extending in the width direction covering the front and back of the item 14 are rolled up into the widthwise side of the item 14 as the front and back craft paper 16, 17 are brought together in the secondary packaging, and the lateral extension portions 12c, 13c are able to protect the widthwise side of the item 14 and also to suppress movement of the item 14 covered all over with cushioning material within the bag.In addition, the front cushioning sheet 13 is formed in a three-dimensional mesh shape and is set to a length that takes into account the length of the cushioning sheet in the stretching direction and the thickness in the front and back directions of the article 14 into consideration when it is in a state where it is formed in a three-dimensional mesh shape and tension is not applied, and in a state where it covers the front surface of the article 14 and the side surface opposite to the stretching direction of the cushioning sheet, the extensions 13a and 13b of the front cushioning sheet 13 extend flat along the back surface of the article 14 and are overlapped and pressed onto the extensions 12a and 12b of the back cushioning sheet 12 formed in a three-dimensional mesh shape and in a state where tension is not applied. In other words, the front cushioning sheet 13 and the back cushioning sheet 12 cover the front and back of the article 14 in the same stretched state without one being excessively stretched, and the protection conditions of the article 14 on the front and back are not different. In addition, when packaging, the back cushioning sheet 12 is placed down, the article 14 is placed on it, and the top of the article 14 is covered with the front cushioning sheet 13, allowing for good automatic packaging.

[0019] The packaging body 10 of the embodiment can be manufactured as follows. As shown in Fig. 6(a), the primary packaging is pulled out from cushioning material rolls (supply sources) 23, 24, which are wound with paper strips 21, 22 made of paper such as kraft paper, arranged above and below across a conveying path for goods 14 by conveying means 20 such as a conveyor, and the upper and lower paper strips (cushioning strips) 21, 22, which become a three-dimensional mesh as they are expanded (stretched) in the pulling-out direction, are stretched so that the paper strips 21, 22 cross the goods conveying path in the vertical direction by being pressed at two points in the width direction at the pulling-out ends. As shown in Fig. 7, the cushioning material rolls 23, 24 are wound with paper strips 21, 22, which have staggered slits 11 extending in the width direction intersecting with the pulling-out direction, and when the paper strips are pulled out, tension is applied in the pulling-out direction by expansion means 25, and the slits 11 of the paper strips 21, 22 are expanded to become a three-dimensional mesh. The crimped pull-out ends of the upper and lower paper strips 21, 22 are positioned at a height level that matches the conveying level of the conveying means 20. Then, the article 14 is supplied toward the spread portion of the paper strips 21, 22, and the upper and lower paper strips 21, 22 are unwound in synchronization with the conveying speed of the article 14, and the crimped pull-out ends are clamped by a chuck (not shown) and sent downstream in synchronization with the conveying speed of the article 14, whereby the upper and lower paper strips 21, 22 joined at the front side in the conveying direction of the article 14 are wrapped around the body to cover the lower side (rear side) and upper side (front side) of the article 14. When the article 14 advances beyond the spreading section, the upper and lower paper strips 21, 22 extending rearward in the conveying direction of the article 14 are engaged with the upper and lower paper strips 21, 22 by the crimping means 26, which is a pair of crimping members consisting of interlocking devices 26a, 26b that move toward and away from each other in the vertical direction, at two locations spaced apart in the width direction by a predetermined pressure, and the upper and lower paper strips 21, 22 are sandwiched between the interlocking devices 26a, 26b, and the overlapping paper strips 21, 22 are crushed by the pressure and crimped. During crimping, the paper strips 21, 22 are cut in the width direction behind the crimping position. As a result, the underside of the item 14 is covered with the back cushioning sheet 12, and the top surface and the front and rear surfaces in the conveying direction of the item 14 are covered with the front cushioning sheet 13, thereby producing a primary packaged item 15 in which the front and rear extension portions 12a, 13a, 12b, 13b of the item 14 are crimped (see Figure 6(b)).In addition, the crimping means 26 crimps the upper and lower paper strips 21, 22 at positions spaced apart in the conveying direction, and during crimping, cuts the paper strips 21, 22 widthwise between the front and rear crimping positions spaced apart in the conveying direction (rearward of the front crimping position), so that the paper strips 21, 22 with their crimped pull-out ends are stretched so as to cross the article conveying path in the vertical direction, and the primary packaged product 15 is separated from the paper strips 21, 22 and conveyed downstream.

[0020] 6(c), the secondary package is drawn from packaging material rolls (supply sources) 28, 29 wound with band-shaped craft paper 16, 17, which are arranged above and below the conveying path of conveying means 27 that conveys the primary packaged product 15, and the craft paper 16, 17, whose drawn-out ends are welded and sealed, is spread out so as to cross the conveying path in the vertical direction. The sealed drawn-out ends of the upper and lower craft paper sheets 16, 17 are clamped by chucks (not shown) and held in a state positioned approximately in the center of the height of the primary packaged product 15 conveyed by conveying means 27. Then, the primary packaged product 15 is supplied toward the spread parts of the craft paper sheets 16, 17. Furthermore, at a predetermined timing when the primary package 15 reaches the unfolding section, the zipper clamping the pull-out end moves downstream in synchronization with the conveying speed of the primary package 15, and the upper and lower craft papers 16, 17 are unwound in synchronization with the conveying speed of the primary package 15, so that the upper and lower craft papers 16, 17 are wrapped around the body to cover the upper and lower sides of the primary package 15. Then, when the primary package 15 advances beyond the unfolding section, the upper and lower craft papers 16, 17 are sealed and cut in the width direction behind the primary package 15 by the seal cutting means 30. Thereafter, both sides of the craft papers 16, 17 in the width direction are sealed and cut outside the primary package 15, thereby obtaining the package 10 in which the primary package 15 is secondarily packaged with the craft papers 16, 17. The seal cutting means 30 seals the upper and lower craft papers 16, 17 in the width direction at positions spaced apart in the conveying direction, and cuts the craft papers 16, 17 in the width direction between the two sealed portions, so that the craft papers 16, 17 with their sealed pull-out ends are stretched so as to cross the conveying path in the vertical direction, and the secondary package 10 is separated from the craft papers 16, 17 and conveyed downstream.

[0021] According to the above manufacturing method, a primary package 15 can be obtained in which strips of paper (strip-shaped cushioning material) 21, 22 pulled out from cushioning material rolls 23, 24 are covered with upper and lower cushioning material sheets 12, 13 cut to a length according to the size of the item 14. This makes it easy to package items 14 of various sizes.

[0022] (Another Example) A package 31 shown in Figure 8 and a package 35 shown in Figure 9 are packages showing different embodiments. These packages 31, 35 are packages obtained by secondary packaging of a primary packaged product 15 using a pillow packaging machine. A vertical seal portion 33 is formed by overlapping both longitudinal ends of a cylindrically formed kraft paper 32 in a palm-shaped manner and heat-sealing the ends, and a horizontal seal portion 34 that intersects with the vertical seal portion 33 is heat-sealed at both front and rear ends of the cylindrical kraft paper 32 that is on the outside of the primary packaged product 15 and sandwiches the primary packaged product 15 contained within the cylindrical kraft paper 32, to form a pillow package.

[0023] In the packaging body 31 shown in Figure 8, the vertical seal portion 33 is formed at a position where the kraft paper 32 is overlapped at the center position when the kraft paper 32 is tubular, and in the packaging body 35 shown in Figure 9, the vertical seal portion 33 is formed at a position where the kraft paper 32 is overlapped on one side when the kraft paper 32 is tubular.

[0024] (Example of change) The present invention is not limited to the configurations of the examples, and can be modified as follows, for example. Furthermore, the configurations described in the examples can be modified in various ways within the scope of the present invention, without being limited to the following modifications. (1) The joint 18 may be formed by crimping one portion or three or more portions. (2) The opening means may be provided as necessary. Also, instead of the opening notch 19, for example, a cardboard cut tape band may be provided on the back surface of the craft paper 16, 17 to improve the ease of opening, or other various easy-opening treatments may be used. [Explanation of symbols]

[0025] 10 packaging body, 11 incision, 12 back cushioning sheet 12a 1st extension part (extension part), 12b 2nd extension part (extension part) 13 Front cushioning sheet, 13a First extension (extension) 13b Second extension part (extension part), 14 Article, 15 Primary packaging product 16 Kraft paper, 17 Kraft paper, 19 Opening notch (opening means) 31 packaging body, 32 cylindrical kraft paper, 35 packaging body

Claims

1. A paper sheet is provided with a plurality of rows of cuts, and the paper sheet is stretched in a direction intersecting the longitudinal direction of the cuts to form a three-dimensional mesh-like cushioning sheet, which is cut to a predetermined length, and a front cushioning sheet and a back cushioning sheet are provided to cover the front and back of the article, In the stretching direction of the cushioning sheet, the extended portions of the front cushioning sheet and the back cushioning sheet extending to one side and the other side of the article are partially compressed at the overlapping portions where they overlap each other, so that the article is covered with the cushioning sheet and primarily packaged; The primary package covered with the cushioning sheet is then covered with craft paper and sealed as a secondary package. A package comprising:

2. 2. The package according to claim 1, wherein the extension is partially compressed at a plurality of locations spaced apart in a width direction intersecting with a stretching direction of the cushioning sheet.

3. The package according to claim 1, characterized in that the secondary packaging is made of kraft paper with a heat sealing agent applied to the inner surface, and three or four sides of the overlapping portion covering the primary packaged product are heat sealed.

4. 2. The package according to claim 1, wherein the secondary package of craft paper is provided with a package opening means.

5. The packaging body described in any one of claims 1 to 4, characterized in that, while the back cushioning sheet extends flat along the back surface of the article, the front cushioning sheet covers the surface of the article and the side surface opposite to the stretching direction of the cushioning sheet, with a length taking into account the length of the cushioning sheet in the stretching direction of the article and the thickness in the front and back directions, and the extended portions of the extended portions of the front cushioning sheet and the back cushioning sheet are overlapped and pressed against each other so that the extended end portions are in the same position.

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