JP4629323B2 - Packaging method using packaging sheet - Google Patents

Description

  The present invention relates to a cushioning-resistant packaging sheet and a packaging method using the packaging sheet, and prevents, for example, scratches and breakage when transporting gifts such as bottles and cans or precision instruments. The present invention relates to a packaging sheet used for preventing a door, a pillar, a wall, and the like from being damaged by furniture or the like when moving, and a method for packaging an article to be packaged using the packaging sheet.

  Conventionally used to prevent damage to gifts such as bottles and cans, precision equipment, etc., and to prevent doors, pillars, walls, etc. from being damaged by furniture when moving. Air cap sheets are often used as packaging sheets.

  The air cap sheet is manufactured by heat-sealing two vinyl sheets or polyethylene sheets together with a small number of protrusions that form air pockets, and has high shock resistance. It is used as.

  However, since the air cap sheet is bulky due to the accumulation of air, it is costly to transport to the treatment plant for recycling after use. In addition, there is a problem that it is not preferable for disposal.

  In addition, instead of air caps and sheets, it is conceivable to use a cardboard material as a packaging sheet with few environmental problems, but ordinary cardboard is a foamed polystyrene equipped in a box or box. Although it is excellent for use as an alternative buffering agent, it is heavy and hard, so it is not suitable for directly wrapping products, and it requires a dedicated one that has a fold according to the package, It was economically disadvantageous.

  Furthermore, since the contents of conventional packaging sheets cannot be confirmed once they have been packaged, for example, it may take time and effort to write the contents of the package on the packaging sheet or to apply a product label. .

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a packaging sheet that is light and easy to package an article to be packaged without being too bulky and has excellent impact resistance. It is what.

  In order to solve the above-mentioned problems, the packaging sheet of the present invention has a liner made of a paper material of about 20 to 100 g / m bonded to a stepped core material in which a paper material of about 150 to 400 g / m is formed in a wave shape. The processed sheet was bent from both sides to give flexibility to the entire sheet.

  According to the present invention, since the entire sheet is flexible, it can be freely packaged without being restricted by the size and shape of the packaged article, and also exhibits high impact resistance due to its excellent elasticity. Can do.

  And as an example of the step type of the stepped core material that exhibits sufficient impact resistance, JIS standard A flute is preferable.

  In addition, the entire sheet can be processed by bending a laminated sheet in which two layers of a sheet of kraft paper liner bonded to a stepped core made of corrugated reinforced kraft paper from both sides. When flexibility is imparted, impact resistance is further improved.

  Furthermore, by changing the step height or width of the stepped core material in the laminated sheet, it is possible to adjust the ease of wrapping and the impact resistance according to the package. And as an example of the kind of step of the step core material in a lamination sheet, what laminated the step core material of B flute on the step core material side of A flute, etc. are used.

  In addition, by using the above-mentioned packaging sheet and winding and packaging in a direction perpendicular to the longitudinal direction of each step of the stepped core material, the groove of the stepped core material at the corner portion of the package object And the liner can be wound tightly along the corner.

  Furthermore, by making the longitudinal dimension of each step of the packaging sheet larger than the packaged item, even if the packaged sheet collides with another packaged item after packaging, the portion of the packaging sheet that protrudes from the packaged item The impact force can be absorbed, and the package can be prevented from being damaged.

  Furthermore, if an opening is formed on the packaging sheet so that a part of the packaged article is exposed after the packaged article is packaged, the label indicating the product name of the packaged article or the color of the packaged article The pattern or the like can be confirmed from the appearance even after packaging. Alternatively, even if the packaging object is packaged after weaving the end in the winding direction of the packaging sheet inside, a part of the packaging object can be similarly exposed to check the contents.

  Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of an embodiment of the present invention. A packaging sheet 1 is formed on a stepped core material 2 in which a paper material of about 150 to 400 g / m ² is formed in a wave shape, and 20 to 100 g / m 2. It is formed by imparting flexibility to the entire sheet 4 by subjecting the single-sided cardboard-like sheet 4 to which the liner 3 made of about ^two paper materials are bonded to each other from both sides.

  As the stepped core material 2, various paper materials can be used, but it is preferable to use reinforced kraft paper. Reinforced kraft paper is a material that is added with a thermosetting resin at the stage of paper kneading or impregnated after sheet formation and cured, and further mixed with a material for increasing strength at the stage of paper koji. It is good, tough and excellent in elasticity, and has the property of returning to its original state when the load is removed.

The liner 3 that is bonded to the stepped core material 2 to form a single-sided cardboard-like sheet 4 is preferably a thin kraft paper of about ²⁰ to 100 g / m ^2. Because of its high burst strength, it is extremely difficult to tear even after repeated use.

  The size of the stepped core material 2 is, for example, an A flute having a step height of 4.5 mm to 4.8 mm, that is, a standard defined by JISZ-1516, in order to exhibit sufficient impact resistance. In addition, it can be freely set according to uses such as whether the type of the packaged item, the conveying method, or ease of packaging is important.

  Then, a plurality of rollers are allowed to advance on the front side and the back side of the sheet 4 while meandering in a direction perpendicular to each step or in a direction perpendicular thereto, so that the front side and the back side are shrunk. The entire sheet 4 is made flexible by performing a bending process so as to extend (not shown). That is, by applying such a bending process to the stepped core material 2, the portion of the liner 3 laid between the tops of the steps becomes loose, and the restoring force of the stepped core material 2 and the liner 3 Combined with elasticity, it exhibits excellent overall elasticity and impact resistance.

  Since such a packaging sheet 1 has flexibility and high impact resistance, the precision device 5 as shown in FIG. When transporting a bottle 6 or the like as shown in b), it is not necessary to put a cushioning material such as a foamed polystyrene or a cardboard mold in a separate transport box having impact resistance, and a conventional air cap sheet or As with the cardboard material, it can be transported simply by wrapping it, so that the packaging work for transport is extremely simple and economically advantageous. Moreover, since the entire sheet 4 is flexible, it can be freely packaged without being bound by the size and shape of the packaged object.

  Moreover, as shown in FIG. 3, it may be used in the same manner as a conventional corrugated cardboard material such as wrapping a part or the whole of a gift box 7 containing a product 6 such as bottled wine, canned beer, liquor bottle or the like. Therefore, it can be conveyed and gifted as it is in the decorative box 7 without being replaced with another packaging box for transportation. At this time, as shown in FIG. 3, for example, the packaging only has to wrap the cord 8 with the packaging sheet 1 applied to the corners, and match the shape of the decorative box 7 like a conventional cardboard material. Since it is not necessary to cut or form a folded portion, it is not time-consuming and economical, and labor and materials can be saved. Moreover, since it has sufficient impact resistance compared to the case of using a conventional corrugated cardboard material, there is very little fear that the bottle will be broken or the can will be crushed during the transportation.

  Moreover, since the packaging sheet 1 is rich in flexibility, it can be used for many purposes such as attaching to a corner of furniture or a column in order to prevent the column or the like from being damaged by furniture or the like when moving.

  FIG. 4 shows a different embodiment of the present invention, and a liner made of kraft paper is provided on stepped core materials 21 and 22 in which reinforced kraft paper similar to the packaging sheet 1 shown in FIG. The two-layered sheets 41 and 42 formed by adhering 31 and 32 are laminated, and the laminated sheet 40 formed by adhering is bent from both sides, so that the entire laminated sheet 40 is flexible. Is given.

  FIG. 5 shows still another embodiment of the present invention. The overall configuration is substantially the same as that shown in FIG. 4, but the steps of the sheets 41 and 42 constituting the laminated sheet 40 are provided. The height and width of the steps of the core materials 21 and 22 are different.

  Thus, by changing the height and width of the steps of the stepped cores 21 and 22 of the sheets 41 and 42, the packaging sheet 1 composed of the laminated sheet 40 in which the strengths of the front side and the back side are changed. It can be provided, and can deal with various uses such as the type of packaged goods and transportation means.

  FIG. 6 shows an example of a packaging method using the packaging sheet 1 shown in FIG. 5, with the stepped core member 22 facing outward, and the longitudinal direction of each step forming the stepped core members 21, 22. The article 9 is packaged by winding in the vertical direction. At this time, the packaging is performed such that the opening 10 provided in the packaging sheet 1 is positioned at a portion of the surface of the article 9 to be packaged, for example, where a product label is affixed. Then, a string 8 such as a PP band is wound from the outside of the packaging sheet 1 to fasten the packaging sheet 1.

  When the article to be packaged 9 is packaged in this way, when the packaging sheet 1 is wound, the outer stepped core material 22 spreads at the corner bent portions as shown in the enlarged view of FIG. At the same time, since the inner liner 31 bends along the corner, the packaging sheet 1 can be wound along the surface of the article 9 without any gaps.

  Moreover, even if it collides with another load etc. during conveyance, the energy of a collision can be absorbed by the elasticity of the stepped core materials 21 and 22, and the to-be-packaged item 9 can be protected. In particular, if the packaging sheet 1 laminated in two layers is used, even a simple packaging as shown in FIG. 6 has sufficient impact resistance and does not require multiple wrapping. Is very simple.

  Furthermore, since the packaging sheet 1 in the longitudinal direction shown in FIG. 6 is packaged using a material wider than the article 9 to be packaged, other packages or the like are placed on the opened upper and lower ends during transportation. Even if the collision occurs, the portion of the packaging sheet 1 that protrudes from the package 9 absorbs the impact and does not hit the package 9.

  In addition, when two or more sheets 41 and 42 are laminated, the impact resistance is further improved, but the encapsulating property is lowered, so that it is not suitable for the purpose of the present invention of packaging a product.

  Next, the result of testing the impact resistance by the packaging sheet 1 of the present invention will be described.

The specimen used for the test is a packaged article in which a dummy bottle made of a synthetic resin having the same weight and shape as a single bottle is placed in a paper box in which the single bottle is usually stored. For the two-layer stepped core material to be laminated, the sizes of the A flute and B flute, each of which is standardized by JISZ-1516, were used. The stepped core material of the packaging sheet was 160 g / m ² reinforced kraft paper, and the liner material was 50 g / m ² kraft paper.

  As shown in FIG. 7 (a), the specimen is wrapped around the side surface of the article 9 to be wrapped with the packaging sheet 1 wider than the length of the article 9 as shown in FIG. 7 (b). A string 8 made of a PP band was used to form a string. And in both the bottom direction as shown in FIG. 8 (a) and the side direction as shown in FIG. 8 (b), it is dropped from a height of 60 cm, and the maximum acceleration and action time acting on the package 9 And measured. For comparison, an article 9 to be packaged that was not packaged with the packaging sheet 1 was dropped from a height of 60 cm.

  In addition, as a preliminary test, the actual ginseng bottle placed in a paper box was dropped from a height of 60 cm in both the bottom and side directions, and the result was that both bottles burst. Then, it measured using the dummy bottle which does not break.

  The results of the drop test are as shown in Table 1. Using the packaging sheet 1, the maximum acceleration is 105G, and it is confirmed that it falls within the allowable acceleration range for transporting general machinery, ceramics, and bottles. It was.

  Next, a description will be given of a machine for producing a single-sided corrugated sheet constituting the packaging sheet 1.

  This manufacturing machine includes first to fourth supply units 90, 91, 92, 93 for supplying unbleached paper as base paper, and first to second lamination units 94, 95.

  Specifically, the first to fourth supply units 90, 91, 92, and 93 include unbleached paper rolls.

  The first laminating unit 94 includes a press roll 940 provided with a roll of unbleached paper, corrugated rolls 941 and 942 for stepping unbleached paper supplied from the second supply unit 91, a group of buns and doctors that store adhesives This is a general single-sided corrugated cardboard laminating unit having a glued portion 943 that has a roll and pastes the top of each step of unbleached paper with a step. The first stacking unit 94 is provided on the upstream side of the second supply unit 91, forms a flute on the unbleached paper supplied from the second supply unit 91, and unbleached supplied from the first supply unit 90. The paper and the flute that is unbleached paper that is supplied from the second supply unit 91 and has a step formed thereon are laminated to form a single-sided corrugated sheet 4.

  The second laminating unit 95 includes a press roll 950 having a roll of unbleached paper, corrugated rolls 951 and 952 for stepping the unbleached paper supplied from the second supply unit 91, a group of buns and doctors that store adhesives This is a general single-sided corrugated sheet 4 laminated portion having a glue and a glued portion 953 for attaching glue to the top of each step of unbleached paper having a step. The second stacking unit 95 is provided on the upstream side of the third supply unit, forms a flute on the unbleached paper supplied from the fourth supply unit 93, and unbleached paper supplied from the fourth supply unit 93 And a flute that is supplied from the third supply unit 92 and is unbleached paper on which a step is formed.

  The third laminating unit 96 has a glue band and a doctor roll in which adhesive is stored, and a glued portion 961 that glues the top of each step of unbleached paper with a step, a heating unit, a pressure roller, etc. It is a general lamination | stacking part provided with the adhesion part 962 provided with. The third laminated portion 96 is provided on the upstream side of the first laminated portion 94 and the second laminated portion 95, and laminates the single-sided cardboard sheet 4 formed by the laminated portions 94 and 95.

Incidentally, the normal corrugated cardboard has a structure in which a flute is formed between the liners. However, the packaging sheet 1 of the present embodiment does not include a liner on the outermost side, and accordingly, the packaging sheet accordingly. The space for the facility for manufacturing 1 is not required, and can be manufactured in a compact space.

It is a perspective view which shows an example of embodiment of this invention. It is a perspective view which shows the use condition of the sheet | seat for packaging shown in FIG. It is a perspective view which shows the different use condition of the sheet | seat for packaging shown in FIG. It is a perspective view which shows different embodiment of this invention. It is a perspective view which shows further another embodiment of this invention. It is a perspective view which shows the use condition of the sheet | seat for packaging shown in FIG. It is a perspective view which shows the test body of the drop test using the sheet | seat for packaging shown in FIG. It is a front view which shows the fall direction of a drop test. It is a schematic explanatory drawing which shows the manufacturing apparatus of the packaging sheet | seat of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet | seat for packaging 2, 21, 22 Stepped core material 3, 31, 32 Liner 4, 41, 42 Sheet 8 String 9 Packaged object 10 Opening part

Claims (3)

A sheet having a stepped core formed of a paper material of about 150 to 400 g / m ² in a corrugated shape and a liner made of a paper material of about ²⁰ to 100 g / m ² is curved from both sides. It is a packaging method using a packaging sheet that gives flexibility to the entire sheet, the packaging sheet having a predetermined shape extending over a pair of side surfaces facing each other and a bottom surface continuous to these side surfaces of a cosmetic box containing goods A wrapping method using a wrapping sheet , wherein a string is wound in a direction perpendicular to the length direction of the pair of side surfaces with the respective surfaces being exposed and the surfaces exposed .   The packaging method using the packaging sheet according to claim 1, wherein at least one of an upper end or both side ends of the packaging sheet applied to the side surface of the cosmetic box protrudes from the side surface of the cosmetic box. When applying the packaging sheet on the side surface of the dressing, as claimed in claim 1 or 2, wherein the packaging arranged in a direction perpendicular to the horizontal direction of the side surface in the longitudinal direction of each stage of the stepped core A packaging method using a packaging sheet.

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