JP7373413B2 - Method for manufacturing sheet assembly packaging - Google Patents

Description

The present invention relates to a sheet package, a sheet assembly package, a method for manufacturing a sheet package, and a method for manufacturing a sheet assembly package.

For sanitary tissue paper such as tissue paper, carton-type sheet packaging packed in cardboard boxes has become popular, but in recent years, film-type packaging bags have been introduced due to concerns such as transportation, storage, disposal, environmental impact, and cost. There is an increasing demand for soft pack type sheet packaging bodies housed in. Furthermore, among sanitary tissue papers, there is a high demand for sanitary tissue paper that is moisturizing type that feels good on the skin. Further, such sheet packaging bodies are distributed as collective packaging bodies in which a plurality of sheet packaging bodies are housed in a film-like packaging bag (see, for example, Patent Document 1).

Patent No. 6240734

An object of the present invention is to provide a sheet package that provides a stable packaging state even when containing a moisture-retaining sheet.

A first aspect of the present invention includes a sheet laminate in which a plurality of moisturizing sheets are laminated, and a packaging bag for packaging the sheet laminate, wherein the sheet laminate has a compression rate of 50 in the lamination direction. To provide a sheet package housed in the packaging bag in a compressed state of % or more and 80% or less.

In this specification, a moisturizing sheet refers to a sheet coated with or impregnated with a moisturizing component. The stacking direction refers to the direction in which the sheets constituting the sheet stack are stacked. The compression rate refers to the ratio of the stacking height of the sheet laminate after being compressed to the stacking height of the sheet laminate before being compressed when the sheet laminate is compressed in the stacking direction. The sheet package refers to a package in which a plurality of sheets are packaged in a packaging bag.

Note that the moisture-retaining sheet contains a moisturizing component and therefore has the property of absorbing moisture in the air. Therefore, a sheet laminate made up of a plurality of moisture-retaining sheets tends to absorb moisture over time and collapse in the stacking direction, resulting in a decrease in bulk. If the bulk of the sheet laminate decreases within the packaging bag, the packaging state of the sheet laminate becomes unstable, the appearance of the sheet packaging becomes poor, and the stacking state of the sheet laminate becomes disordered within the packaging bag. There is a risk.

In the first aspect, a sheet laminate in which a plurality of moisture retention sheets are laminated is compressed in the lamination direction at a compression ratio of 50% to 80% and then stored in a packaging bag, so that the moisture retention sheet changes over time. Even when the sheet laminate absorbs moisture, it is possible to suppress the bulkiness of the sheet laminate from decreasing within the packaging bag. Thereby, it is possible to provide a sheet package in which a stable packaging state of the sheet laminate can be obtained.

A second aspect of the present invention provides a sheet package in which the sheet laminate is caramel wrapped. In this specification, caramel packaging refers to packaging in a packaging bag in which both ends or one end of a cylindrical film is folded and glued or sealed.

In the second aspect, by caramel-wrapping the sheet laminate, the sheet laminate compressed in the lamination direction at a compression ratio of 50% to 80% can be easily accommodated in a packaging bag. Moreover, it is easy to seal the packaging bag after containing the sheet laminate compressed in the stacking direction at a compression ratio of 50% to 80%.

A third aspect of the present invention includes a plurality of the above-described sheet packaging bodies and a collective packaging bag for packaging the plurality of sheet packaging bodies, and the plurality of sheet packaging bodies are accommodated in the collective packaging bag. To provide a sheet assembly package that is In this specification, a collective packaging bag refers to a packaging bag for packaging a plurality of sheet packaging bodies together. The sheet collective package refers to a plurality of sheet packages packaged in a collective packaging bag.

Note that, as described above, a sheet laminate composed of a plurality of moisture-retaining sheets tends to decrease in bulk due to changes over time. If the bulk of the sheet laminates constituting each sheet package in the collective packaging bag decreases, the packaging state of each sheet package in the sheet collective package becomes unstable, and the appearance of the sheet collective package deteriorates. When a plurality of sheet assembly packages are stacked up for display or the like, there is a risk that the plurality of sheet assembly packages may tilt significantly or collapse.

In the third aspect, a plurality of sheet packages containing sheet laminates compressed at a compression rate of 50% or more and 80% or less in the lamination direction are housed in a collective packaging bag, so that the moisture-retaining sheet absorbs moisture over time. Even in such a case, it is possible to suppress a decrease in the bulk of each sheet package within the collective packaging bag. Thereby, it is possible to provide a sheet assembly package in which each sheet package can be in a stable packaging state. Moreover, when a plurality of sheet assembly packages are stacked up, it is possible to prevent the plurality of sheet assembly packages from tilting significantly or collapsing in the stacked state.

In a fourth aspect of the present invention, the plurality of sheet packages are juxtaposed in a state where the stacking directions match, and the collective packaging bag is compressed in the juxtaposition direction at a compression rate of 60% or more and less than 90%. To provide a sheet assembly package housed in a.

In this specification, the phrase "arranged side by side in a state where the stacking directions match" means that the sheet packages are arranged side by side in a direction in which the stacking directions overlap. The juxtaposition direction refers to the direction in which a plurality of sheet packages constituting a sheet assembly package are lined up. Compression ratio refers to the ratio of the juxtaposition length of the plurality of sheet packaging bodies after being compressed to the juxtaposition length of the plurality of sheet packaging bodies before being compressed when the sheet packaging bodies are compressed in the juxtaposition direction. .

In the fourth aspect, a plurality of sheet packages housed in a packaging bag with the sheet laminates compressed in the stacking direction at a compression rate of 50% or more and 80% or less are arranged side by side in a state where the stacking directions match, By storing them in the collective packaging bag in a compressed state with a compression ratio of 60% or more and less than 90% in the juxtaposition direction, the bulk of each sheet packaging body within the collective packaging bag is reduced even if the moisture-retaining sheet changes over time. can be suppressed with high precision. Thereby, it is possible to provide a sheet assembly package in which a very stable packaging state of a plurality of sheet packages can be obtained.

In addition, in the fourth aspect, by storing the plurality of sheet packaging bodies compressed in the juxtaposition direction at a compression rate of 60% or more and less than 90% in the collective packaging bag, when the plurality of sheet collective packaging bodies are piled up, It is possible to highly accurately prevent a plurality of sheet assembly packages from tilting or collapsing in a stacked state.

A fifth aspect of the present invention provides a plurality of sheet packages in which a sheet laminate in which a plurality of moisturizing sheets are laminated is accommodated in a packaging bag, and a collective packaging bag for packaging the plurality of sheet packages. and the plurality of sheet packages are arranged side by side in a state where the stacking direction is the same, and are housed in the collective packaging bag in a state where they are compressed in the direction of juxtaposition with a compression rate of 60% or more and less than 90%. , sheet assembly packaging.

In the fifth aspect, a plurality of sheet packages containing a sheet laminate in which a plurality of moisturizing sheets are laminated are arranged side by side in a state where the stacking directions match, and the compression ratio in the juxtaposition direction is 60% or more and less than 90%. By storing the compressed sheets in the collective packaging bag, it is possible to suppress a decrease in the bulk of each sheet package within the collective packaging bag even if the moisture-retaining sheet changes over time. Thereby, it is possible to provide a sheet assembly package in which each sheet package can be in a stable packaging state.

Further, in the fifth aspect, by storing the plurality of sheet packages compressed in the juxtaposition direction at a compression rate of 60% or more and less than 90% in the collective packaging bag, when the plurality of sheet collective packages are stacked, It is possible to prevent the plurality of sheet assembly packages from tilting or collapsing in a stacked state.

A sixth aspect of the present invention includes the steps of supplying a sheet laminate in which a plurality of moisturizing sheets are laminated, and compressing the sheet laminate in the lamination direction at a compression ratio of 50% to 80%. and storing the sheet laminate in the compressed state in a packaging bag.

In the sixth aspect, a sheet laminate in which a plurality of moisture retention sheets are laminated is compressed in the lamination direction at a compression ratio of 50% to 80% and then stored in a packaging bag, so that the moisture retention sheet changes over time. Even when the sheet laminate absorbs moisture, it is possible to suppress the bulkiness of the sheet laminate from decreasing within the packaging bag. Thereby, it is possible to provide a sheet package in which a stable packaging state of the sheet laminate can be obtained.

A seventh aspect of the present invention includes the step of arranging a plurality of sheet packages in which a sheet laminate in which a plurality of moisturizing sheets are laminated and housed in a packaging bag in a state in which the stacking directions match; Sheet collective packaging, comprising: compressing the plurality of sheet packaging bodies in the juxtaposition direction at a compression rate of 60% or more and less than 90%; and storing the compressed state of the plurality of sheet packaging bodies in a collective packaging bag. Provides a method for manufacturing a body.

In the seventh aspect, a plurality of sheet packages housing a sheet laminate in which a plurality of moisturizing sheets are laminated are arranged side by side with their lamination directions coinciding, and the compression ratio in the juxtaposition direction is 60% or more and less than 90%. By storing the compressed sheets in the collective packaging bag, it is possible to suppress a decrease in the bulk of each sheet package within the collective packaging bag even if the moisture-retaining sheet changes over time. Thereby, it is possible to provide a sheet assembly package in which a stable packaging state of a plurality of juxtaposed sheet packages can be obtained.

In addition, in the seventh aspect, by storing the plurality of sheet packages compressed in the juxtaposition direction at a compression rate of 60% or more and less than 90% in the collective packaging bag, when the plurality of sheet collective packages are piled up, It is possible to prevent the plurality of sheet assembly packages from tilting or collapsing in a stacked state.

According to one aspect of the present invention, it is possible to provide a sheet package that provides a stable packaging state even when containing a moisture-retaining sheet.

It is a figure showing a sheet package concerning an embodiment. It is a figure which shows the sheet laminated body before being accommodated in the packaging bag (before compression). FIG. 2 is a left side view of FIG. 1 (view of FIG. 1 in the X direction). It is a flowchart which shows an example of the manufacturing method of the sheet package concerning an embodiment. FIG. 1 is a diagram showing a sheet assembly package according to an embodiment. This is a plurality of sheet packaging bodies before being accommodated in a collective packaging bag (before being compressed). FIG. 6 is a front view of FIG. 5 (a view of FIG. 5 viewed in the Y direction). FIG. 3 is a diagram showing a stacking pattern (immediately after stacking) of sheet assembly packages. FIG. 3 is a diagram showing a stacking pattern (after one week) of a sheet assembly package (compression ratio of less than 90%) containing sheet packaging bodies (compression ratio of 74%). A sheet aggregate package (compression rate 90%) containing a sheet package (compression rate 74%) and a sheet aggregate package (compression rate less than 90%) containing a sheet package (compression rate 90%) It is a diagram showing a stacking pattern (after one week has passed). FIG. 7 is a diagram showing a stacking pattern (after one week) of a sheet assembly package (compression rate 95%) containing sheet packages (compression rate 90%). FIG. 3 is a diagram showing a stacking pattern (after one week) of a sheet assembly package (compression rate 100%) containing sheet packages (compression rate 90%). 1 is a flowchart illustrating an example of a method for manufacturing a sheet assembly package according to an embodiment.

Embodiments of the present invention will be described in detail below with reference to the drawings. Common parts in each figure may be given the same reference numerals and descriptions thereof may be omitted. Further, the scale of each member in each drawing may be different from the actual scale. Furthermore, in each figure, the left-right direction (the longitudinal direction of the sheet package), the front-back direction (the depth direction of the sheet package), and the vertical direction (the height direction of the sheet package) are respectively referred to as the X direction, Y direction, and Z direction. do.

<Sheet packaging>
FIG. 1 is a diagram showing a sheet package according to an embodiment. FIG. 2 is a diagram showing a sheet laminate before being accommodated in a packaging bag (before being compressed). FIG. 3 is a left side view of FIG. 1 (view of FIG. 1 in the X direction). A sheet package 100 according to this embodiment includes a sheet laminate 10 and a packaging bag 20. In this specification, a sheet package refers to a package in which a plurality of sheets are packaged in a packaging bag. Note that the sheet package 100 is an example of a sheet package according to the present embodiment.

The sheet laminate 10 constitutes a sheet laminate SL in which a plurality of sheets (or a plurality of sets) of moisturizing sheets S are laminated (see FIGS. 1 and 2). In this specification, a moisturizing sheet refers to a sheet coated with or impregnated with a moisturizing component. Such a moisturizing sheet is also called a lotion tissue.

The moisturizing component is not particularly limited, but for example, polyol is used. Examples of polyols include glycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, diethylene glycol, triethylene glycol, hexylene glycol, and benzyl glycol. Among these, glycerin is preferable. These polyols may be used alone or in combination of two or more. Further, the amount of the moisturizing component added is arbitrary.

In addition, since the moisturizing sheet contains such a moisturizing component, it has the property of absorbing moisture in the air. Therefore, a sheet laminate made up of a plurality of moisture-retaining sheets tends to absorb moisture over time and collapse in the stacking direction, resulting in a decrease in bulk. If the bulk of the sheet laminate decreases within the packaging bag, the packaging state of the sheet laminate becomes unstable, the appearance of the sheet packaging becomes poor, and the stacking state of the sheet laminate becomes disordered within the packaging bag. There is a risk.

Moreover, in this specification, the lamination direction refers to the direction SD in which the moisturizing sheets S constituting the sheet laminate 10 are laminated (see FIG. 1). In the present embodiment, the sheet laminate 10 is housed in the packaging bag 20 such that the stacking direction (SD direction) of the moisturizing sheets S is the height direction (Z direction). This sheet laminate 10 is configured such that the moisturizing sheets S can be pulled out one by one (or one set at a time) through an outlet 21A formed in the top surface 21 of the packaging bag 20 (see FIG. 1).

Note that the sheet laminate 10 is one in which the moisturizing sheets S are folded and stacked alternately (so-called pop-up sheet laminate 10), from the viewpoint of pulling out the moisturizing sheets S one by one or one set at a time. It is preferable that Further, the form of the sheet laminate 10 is not limited to one that can be pulled out in a pop-up manner, but may be one in which a plurality of sheets (or a plurality of sets) of moisturizing sheets S are simply laminated, or a state in which each moisturizing sheet S is folded. A layered structure may also be used.

In addition, the dimensions of the sheet laminate 10 are such that the length of the sheet package 100 in the longitudinal direction (X direction) is 155 mm or more and 230 mm or less, and the depth direction (Y direction) perpendicular to the longitudinal direction (X direction) of the sheet package 100 is 155 mm or more and 230 mm or less. The length can be 90 mm or more and 120 mm or less, and the thickness in the thickness direction (Z direction) can be 30 mm or more and 100 mm or less. Such tissue paper laminates can be produced, for example, by rotary or multi-stand interfolders.

The form of the moisturizing sheet S constituting the sheet laminate 10 is not particularly limited, and can be applied to sanitary thin paper such as tissue paper, toilet paper, kitchen paper, and paper towel. Moreover, the use of the moisturizing sheet S is not particularly limited, and can be applied to any of industrial, household, and portable uses, and among these, it is suitably used for household tissue paper. Note that the specifications (material, number of plies, basis weight, thickness, etc.) of the moisture-retaining sheet S are arbitrary.

The packaging bag 20 wraps the sheet laminate 10. The packaging bag 20 has a top surface 21, a bottom surface 22, a front surface 23, a back surface 24, a side surface 25, and a side surface 26 in a state in which the sheet laminate 10 is accommodated. In the packaging bag 20, the top surface 21 and the bottom surface 22 face each other in the vertical direction (Z direction), the front surface 23 and the back surface 24 face each other in the front-rear direction (Y direction), and the side surfaces 25 and 26 face each other in the left-right direction (X direction). to face. The side surfaces 25 and 26 are continuous with the top surface 21, the bottom surface 22, the front surface 23, and the back surface 24 (see FIG. 1).

The top surface 21 of the packaging bag 20 is provided with an outlet 21A. The moisture retaining sheet S can be taken out from the outlet 21A. The form of the outlet 21A is not particularly limited, and may be configured, for example, with a continuous cut, an elongated opening, or the like. In this embodiment, continuous cuts are constructed by breaking perforations (intermittent cuts) (see FIG. 1).

The form of the packaging bag 20 is not particularly limited, and may be formed of a flexible film, for example. The material of the flexible film is not particularly limited, and examples thereof include polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), and ethylene-vinyl acetate copolymer. (EVA), polyamide (PA), and other resins can be used.

Among these flexible films, polyethylene, polypropylene, polyethylene terephthalate, and the like are preferred because they are flexible and easy to handle, have high sealability when heat-sealed, and are inexpensive. Further, polyethylene is preferred because it is odorless, has excellent water resistance and chemical resistance, and can be mass-produced at low cost. As the polyethylene, high density polyethylene, low density polyethylene, etc. can be used. Further, polypropylene is preferable from the viewpoints of being strong, easy to mold, showing good color development during printing, and being able to impart gloss.

The form of the flexible film forming the packaging bag 20 is not particularly limited, and may be a single-layer film formed of a single layer of the above-mentioned resin, a laminate film formed by laminating the above-mentioned resins, or a laminate film of the above-mentioned two or more resins. It may also be a mixed film formed of a mixture of.

The thickness of the flexible film forming the packaging bag 20 is not particularly limited, and is preferably 20 μm or more and 100 μm or less, more preferably 25 μm or more and 70 μm or less. By setting the thickness of the flexible film to 20 μm or more, sufficient strength as the packaging bag 20 in which the moisture-retaining sheet S is accommodated can be ensured. Further, by setting the thickness of the flexible film to 100 μm or less, flexibility and lightness of the packaging bag 20 can be ensured, and costs can be suppressed.

Note that the material forming the packaging bag 20 is not limited to the above-mentioned resin material such as the flexible film, and a paper material may also be used. In addition, the materials forming the packaging bag 20 include biodegradable materials (biodegradable plastic, biodegradable paper, etc.), biomass materials (renewable organic resources derived from living things such as biomass film, excluding fossil resources). ) can be used.

Moreover, the packaging mode of the packaging bag 20 is not particularly limited. In this embodiment, for example, packaging in which both ends of a cylindrical flexible film are folded and sealed (caramel packaging), both ends of a cylindrical flexible film folded into a gusset shape, or any Packaging that seals one end of the package (pillow packaging), packaging that heats a heat-shrinkable resin film to adhere tightly to the packaged object (shrink packaging), or a combination of these packaging, etc. be able to.

In this embodiment, the sheet laminate 10 is wrapped in caramel (see FIG. 1). Specifically, the sheet laminate 10 is wrapped in a flexible film in a cylindrical manner with both ends open in the longitudinal direction (X direction), and the overlapped portions in the wrapping direction are fused or bonded. Glue with adhesive. Then, both ends of the cylindrical flexible film in the longitudinal direction (X direction) are folded into the end surface side of the sheet laminate 10, and at least the tip edges of the approximately triangular or trapezoidal pieces formed at this time are The tube opening is sealed by overlapping them and bonding them using a fusion process or adhesive. In this embodiment, both ends (side surfaces 25 and 26 of the packaging bag 20) of the cylindrical flexible film are folded and sealed (see FIG. 1).

In the sheet package 100 of the present embodiment, the sheet laminate 10 is housed in the packaging bag 20 in a compressed state in the stacking direction SD at a compression ratio of 50% to 80%. Note that the compression ratio here is the ratio of the sheet stack 10 after being compressed to the stacking height H1 of the sheet stack 10 (SL) before being compressed when the sheet stack 10 is compressed in the stacking direction SD. The ratio of the stacking height H2 of (SL) is shown (see FIGS. 2 and 3).

In this embodiment, the stacking height H2 after the sheet stack 10 is compressed in the stacking direction SD is lower than the stacking height H1 before compression (see FIGS. 2 and 3). When the stacking height H1 is 100%, the stacking height H2 is 50% or more and 80% or less, preferably 55% or more and 75% or less, and more preferably 60% or more and 70% or less. Note that if the compression rate exceeds 80%, the compression will be insufficient , and if the compression rate is less than 50%, there is a risk that the packaging bag 20 may be damaged or cannot be sealed.

In the present embodiment, the sheet laminate 10 in which a plurality of moisturizing sheets S are laminated is compressed in the stacking direction SD at a compression rate of 50% to 80% and then stored in the packaging bag 20. Even when S absorbs moisture due to changes over time, it is possible to suppress the bulkiness of the sheet laminate 10 from decreasing within the packaging bag 20. Thereby, it is possible to provide a sheet package 100 in which a stable packaging state of the sheet laminate 10 can be obtained.

Furthermore, in the present embodiment, by caramel wrapping the sheet laminate 10, the sheet laminate 10 compressed in the stacking direction SD at a compression ratio of 50% to 80% can be easily accommodated in the packaging bag 20. Moreover, it becomes easy to seal the packaging bag 20 after housing the sheet laminate 10 compressed at a compression ratio of 50% to 80% in the stacking direction SD.

<Method for manufacturing sheet packaging>
FIG. 4 is a flowchart illustrating an example of a method for manufacturing a sheet package according to the embodiment. In the method for manufacturing a sheet package according to the embodiment, step S1, step S2, and step S3 are performed. By carrying out this sheet packaging manufacturing method, the above-described sheet packaging 100 is obtained.

In step S1, a sheet laminate 10 in which a plurality of moisturizing sheets S are stacked is supplied (see FIG. 4). In this embodiment, a sheet laminate SL in which a plurality of sheets (or a plurality of sets) of moisturizing sheets S are stacked is prepared as the sheet laminate 10 constituting the above-described sheet package 100 (see FIG. 2).

In step S2, the sheet stack 10 is compressed in the stacking direction SD at a compression ratio of 50% to 80% (see FIG. 4). In this embodiment, the sheet stack 10 constituting the sheet package 100 described above has a stack height H2 after compression of 50% or more and 80% or less, when the stack height H1 before compression is 100%. It is compressed in the stacking direction SD so that it becomes (see FIGS. 2 and 3).

In step S3, the sheet laminate 10 is compressed and stored in the packaging bag 20 (see FIG. 4). In this embodiment, the above-described sheet laminate 10 is stored in the packaging bag 20 while being compressed in the stacking direction SD at a compression ratio of 50% or more and 80% or less, and the compression ratio in the packaging bag 20 after being stored is 50% or more. The sides 25 and 26 of the packaging bag 20 are sealed (sealed) so that the ratio is maintained at 80% or less (see FIGS. 1 and 3).

In the method for manufacturing a sheet package according to the present embodiment, the sheet laminate 10 in which a plurality of moisturizing sheets S are stacked is compressed in the stacking direction SD at a compression ratio of 50% to 80%, and then the packaging bag 20 is compressed. (See Figure 4). Therefore, even if the moisture-retaining sheet S absorbs moisture due to changes over time, it is possible to suppress the bulkiness of the sheet laminate 10 from decreasing within the packaging bag 20. Thereby, it is possible to provide a sheet package 100 in which a stable packaging state of the sheet laminate 10 can be obtained.

<Sheet assembly packaging>
FIG. 5 is a diagram showing a sheet assembly package according to the embodiment. FIG. 6 shows a plurality of sheet packages before being accommodated in a collective packaging bag (before compression), and FIG. 7 is a front view of FIG. 5 (view of FIG. 5 in the Y direction). 8 to 12 are diagrams showing stacking patterns of sheet assembly packages.

The sheet assembly packaging body 200 according to the present embodiment includes a plurality of sheet packaging bodies 100 and a collective packaging bag 30. The sheet assembly package 200 is an example of a sheet assembly package according to the present embodiment. Further, the plurality of sheet packages 100 are an example of the plurality of sheet packages constituting the sheet collective package according to the present embodiment, and the collective packaging bag 30 constitutes the sheet collective package according to the present embodiment. This is an example of a collective packaging bag.

The above-described sheet packaging bodies 100 can be used for the plurality of sheet packaging bodies 100. Specifically, the sheet package 100 is a sheet laminate 10 in which a plurality of sheets (or a plurality of sets) of moisturizing sheets S are laminated in a packaging bag 20, and is preferably compressed in the lamination direction SD. It is stored in a packaging bag 20 in a compressed state at a rate of 50% or more and 80% or less (see FIGS. 1 to 3).

The collective packaging bag 30 accommodates a plurality of sheet packaging bodies 100. Here, the collective packaging bag refers to a packaging bag for packaging a plurality of sheet packages together. In this embodiment, five sheet packages 100 (sheet packages 101, 102, 103, 104, 105) are accommodated as the plurality of sheet packages 100 (see FIG. 5). Note that the number of the plurality of sheet packages 100 accommodated in the collective packaging bag 30 is not limited, and may be two or more.

The collective packaging bag 30 has a top surface 31, a bottom surface 32, a front surface 33, a back surface 34, a side surface 35, and a side surface 36 in which a plurality of sheet packaging bodies 100 are housed. In the collective packaging bag 30, the top surface 31 and the bottom surface 32 face each other in the vertical direction (Z direction), the front face 33 and the back face 34 face each other in the front-back direction (Y direction), and the side faces 35 and 36 face in the left-right direction (X direction). to face. The side surface 35 and the side surface 36 are continuous with the top surface 31, the bottom surface 32, the front surface 33, and the back surface 34 (see FIG. 5).

The form of the collective packaging bag 30 is not limited. For example, packaging that seals both ends (sealing) of a cylindrical flexible film folded into a gusset shape (pillow packaging), both ends of a cylindrical flexible film Packaging in which one end is folded and glued or sealed (caramel packaging), packaging in which a heat-shrinkable resin film is heated and tightly adhered to the packaged object (shrink packaging), or packaging that combines these, etc. can be adopted.

Note that the material forming the collective packaging bag 30 is not limited to resin, and paper may also be used. In addition, the materials forming the collective packaging bag 30 include biodegradable materials (biodegradable plastic, biodegradable paper, etc.), biomass materials (such as biomass film, etc.), which are organic resources derived from renewable organisms and fossil resources. ) can be used.

When the collective packaging bag 30 is formed of a resin film, the material of the resin film is not particularly limited, but for example, polyethylene (PE), a PE-ethylene vinyl alcohol copolymer (EVOH)-PE laminate (PE/ A resin film such as EVOH/PE) can be used. Further, the thickness of the resin film is not particularly limited, but can be 10 to 70 μm, preferably 15 to 60 μm, and more preferably 20 to 50 μm.

The collective packaging bag 30 may be provided with a handle 37, as shown in FIG. The handle 37 is provided on the upper part (upper surface 31) of the collective packaging bag 30, and constitutes a portion for gripping the sheet collective packaging body 200 with fingers or palms (hereinafter referred to as fingers, etc.). Specifically, the lower end 37A of the handle 37 is connected to the center 31A in the depth direction (Y direction) of the upper surface 31 of the collective packaging bag 30 (see FIG. 5).

The shape of the handle 37 is not limited, and for example, the outline shape of the handle 37 when viewed in the thickness direction (Y direction) can be a quadrangle such as a rectangle (see FIG. 5). In addition, in FIG. 5, for ease of understanding, the handle 37 is shown standing up in the height direction (Z direction), but normally it is shown lying down on the top surface 31 of the collective packaging bag 30. Manufactured and sold.

Further, the dimensions of the handle 37 are not limited, and can be determined based on the dimensions of the collective packaging bag 30, the dimensions of a finger rest described later, and the like. In addition, when the shape of the handle 37 is rectangular, for example, the dimension of the handle 37 in the longitudinal direction (X direction) can be set to 150 to 500 mm, preferably 160 to 400 mm, and more preferably 170 to 300 mm. . Further, the dimension of the handle 37 in the height direction ( Z direction) can be set to 35 to 150 mm, preferably 40 to 130 mm, and more preferably 45 to 100 mm.

The handle 37 can be formed of a resin film or the like similarly to the collective packaging bag 30. The handle 37 is formed on the upper part (upper surface 31) of the collective packaging bag 30 by a seal (not shown). Specifically, the center 31A of the upper surface 31 of the collective packaging bag 30 is sealed with a seal (see FIG. 5). Note that heat sealing is used as the seal. For this heat sealing, a method (stamp method) of stamping the resin film folded into the above-mentioned gusset shape with a hot plate for forming the handle can be used.

In this embodiment, the handle 37 is configured integrally with the collective packaging bag 30 as a part of the resin film folded into a gusset shape, but the form of the handle is not limited to this configuration. For example, a handle may be configured as a separate member from the collective package (or attached later) to a collective packaging bag such as caramel packaging or shrink packaging.

Further, the handle 37 is formed at the center 31A of the upper surface 31 of the collective packaging bag 30. Note that the position where the handle 37 is provided is not limited to the top surface 31 of the collective packaging bag 30, and may be a surface other than the top surface 31 (lower surface 32, front surface 33, back surface 34, side surface 35, and side surface 36). In this case, the surface other than the top surface 31 of the collective packaging bag 30 becomes the upper part of the collective packaging bag 30.

The handle 37 has four folded resin films at both ends (ends 37B, 37C) in the longitudinal direction (X direction) of the handle 37, and two sheets near the center 37D of the handle 37. They are stacked and sealed. Note that the form of this seal is not limited to heat sealing, and the seal may be formed by applying an adhesive, a pressure-sensitive adhesive, or the like.

The handle 37 is provided with an air hole (Fig. (not shown) may be provided.

The handle 37 may further include a finger rest (not shown). The form of the finger rest is not particularly limited, but may be configured with a cut such as a slit, for example. Further, this cut can be formed by intermittent slits such as perforations, and a finger rest may be formed by tearing the perforations. Further, the shape of the cut is not limited, and may be a straight line, a curve, a wavy line, a circle, an ellipse, a quadrilateral, or a shape similar to these.

Further, the number of finger rests is not limited, and one or more notches can be formed. Moreover, when forming two or more cuts, they may be arranged at predetermined intervals in the longitudinal direction (X direction) of the handle 37.

Further, the handle 37 may be provided with a reinforcing film (not shown). This reinforcing film can be formed from a resin film. Note that the material of the reinforcing film is not particularly limited, and may be the same as or different from the material of the resin film forming the handle 37. Examples of such resin films include polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and a PE-ethylene vinyl alcohol copolymer (EVOH)-PE laminate (PE/EVOH/PE). , polyvinylidene chloride (PVDC), or the like can be used. By providing such a reinforcing film, it is possible to reinforce the handle 37 (for example, the central portion 37D of the handle 37) in which a finger rest is formed.

Moreover, the thickness dimension of the reinforcing film is arbitrary. For example, the thickness of the reinforcing film can be 20 μm or more, preferably 30 μm to 150 μm, more preferably 50 μm to 130 μm. By setting the thickness of the reinforcing film within this range, it is possible to prevent the handle 37 from stretching or breaking. Further, the reinforcing film can be adhered to the handle 37 by the above-mentioned thermal welding or the like when forming the seal.

In the sheet collective packaging body 200 of this embodiment, five sheet packaging bodies 100 (sheet packaging bodies 101, 102, 103, 104, 105) as a plurality of sheet packaging bodies 100 are arranged side by side in a collective packaging bag 30. (See Figure 5). Although the manner in which a plurality of sheet packages 100 (sheet packages 101 to 105) are arranged side by side is arbitrary, it is preferable to arrange a plurality of sheet packages 100 side by side with the stacking direction SD of each sheet package 101 to 105 being the same. is preferable (see FIGS. 1 to 5).

Here, arranging the sheet packages 100 (sheet packages 101 to 105) side by side in a state in which the stacking directions SD match indicates that the sheet packages 100 (sheet packages 101 to 105) are arranged side by side in a direction in which the stacking directions SD overlap (see FIG. 5). In this embodiment, the stacking direction SD of each sheet package 100 (sheet packages 101 to 105) coincides with the juxtaposition direction of each sheet package 100 (sheet packages 101 to 105). Note that the juxtaposition direction refers to the direction JD in which the plurality of sheet packages 100 (sheet packages 101 to 105) constituting the sheet assembly package 200 are lined up (see FIG. 5).

In this embodiment, as shown in FIG. ) is lined up is the juxtaposition direction JD. In addition, in FIG. 5, when the sheet assembly package 200 is arranged so that the side surface 35 is the bottom surface and the side surface 36 is the top surface, each The direction in which the sheet packages 100 are stacked from the sheet package 101 to the sheet package 105 is the juxtaposition direction JD. In other words, juxtaposition is a concept that includes stacking, depending on how you look at it.

In the sheet assembly package 200 of this embodiment, a plurality of sheet packages 100 (sheet packages 101 to 105) are compressed in the juxtaposition direction JD at a compression ratio of 60% or more and less than 90% and are housed in the assembly packaging bag 30. has been done. Note that, when compressing a plurality of sheet packages in the juxtaposition direction JD, the compression ratio here is the ratio of the juxtaposition length L1 of the plurality of sheet packages before being compressed to the juxtaposition length L1 of the plurality of sheet packages after being compressed. (See FIGS. 6 and 7).

In this embodiment, the juxtaposition length L2 after compressing the plurality of sheet packages 100 (sheet packages 101 to 105) in the juxtaposition direction JD is shorter than the juxtaposition length L1 before compression (Fig. 6, see Figure 7). When the juxtaposition length L1 is taken as 100%, the juxtaposition length L2 is 60% or more and less than 90%, preferably 65% or more and less than 85%, more preferably 70% or more and less than 80%. . Note that if the compression rate is 90% or more, the compression will be insufficient, and if the compression rate is less than 60%, there is a risk that the collective packaging bag 30 may be damaged or cannot be sealed.

In addition, in the sheet assembly package 200, the sheet laminate 10 composed of a plurality of moisturizing sheets S tends to decrease in bulk due to changes over time as described above. When the bulk of the sheet laminate 10 constituting each sheet package 100 (sheet packages 101 to 105) in the collective packaging bag 30 decreases, the bulk of each sheet package 100 (sheet packages 101 to 105) in the sheet collective package 200 decreases. 105) becomes unstable and the appearance of the sheet assembly package 200 deteriorates, or when a plurality of sheet assembly packages 200 are stacked on display etc. There is a risk of it leaning or collapsing (see Figures 11 and 12).

In contrast, in the present embodiment, as described above, a plurality of sheet packages 100 (sheet packages 101 to 105 ) in the collective packaging bag 30, the bulk of each sheet package 100 (sheet packages 101 to 105) is reduced within the collective packaging bag 30 even if the moisture-retaining sheet S absorbs moisture due to changes over time. can be suppressed. Thereby, it is possible to provide a sheet assembly package 200 in which each sheet package 100 (sheet packages 101 to 105) can be in a stable packaging state.

Furthermore, in this embodiment, when the plurality of sheet aggregate packages 200 are stacked up, it is possible to suppress the plurality of sheet aggregate packages 200 from tilting significantly or collapsing in the stacked state. For example, as shown in FIG. 8, when a plurality of sheet assembly packages 200 (sheet assembly packages 201 to 212) are stacked (stacked), will they remain almost stacked even after one week? , or slightly tilted (see FIGS. 9 and 10).

In this embodiment, as described above, a plurality of sheet packages 100 (sheet packages 101 to 105) housing a sheet laminate 10 in which a plurality of moisturizing sheets S are laminated are arranged in the same stacking direction SD. By arranging them side by side and storing them in the collective packaging bag 30 in a compressed state with a compression rate of 60% or more and less than 90% in the juxtaposition direction JD, even if the moisture-retaining sheets S change over time, each one of them will remain in the collective packaging bag 30. It is possible to suppress a decrease in the bulk of the sheet package 100 (sheet packages 101 to 105). Thereby, it is possible to provide a sheet assembly package 200 in which each sheet package 100 (sheet packages 101 to 105) can be in a stable packaging state.

In this embodiment, a plurality of sheet packages 100 (sheet packages 101 to 105) are compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90% and then housed in the collective packaging bag 30. When the sheet assembly packages 200 are stacked up, it is possible to prevent the plurality of sheet assembly packages 200 from tilting significantly or collapsing in the stacked state (see FIGS. 9 and 10).

In the present embodiment, as described above, a plurality of sheet packages 100 (sheet packages 101 to 105) are further arranged side by side in a state where the lamination direction SD is the same, and compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90% and then stored in the collective packaging bag 30, thereby producing a moisturizing sheet S. Even if the weight changes over time, it is possible to prevent the bulkiness of each sheet package 100 (sheet packages 101 to 105) from decreasing within the collective packaging bag 30 with high accuracy. Thereby, it is possible to provide a sheet assembly package 200 in which a very stable packaging state of a plurality of sheet packages 100 (sheet packages 101 to 105) can be obtained.

In this embodiment, a plurality of sheet packages 100 (sheet packages 101 to 105) are compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90% and then housed in the collective packaging bag 30. When stacking the sheet assembly packages 200, it is possible to highly accurately prevent the plurality of sheet assembly packages 200 from tilting or collapsing in the stacked state (see FIGS. 9 and 10).

<Method for manufacturing sheet assembly packaging>
FIG. 13 is a flowchart illustrating an example of a method for manufacturing a sheet assembly package according to the embodiment. In the method for manufacturing a sheet assembly package according to the embodiment, step S11, step S12, and step S13 are executed. By carrying out this sheet package manufacturing method, the above-described sheet assembly package 200 is obtained.

In step S11, a plurality of sheet packages 100 each including a sheet laminate 10 in which a plurality of moisturizing sheets S are laminated and housed in a packaging bag 20 are arranged side by side with their stacking directions SD aligned (see FIG. 13). ). In this embodiment, five sheet packages 100 (sheet packages 101 to 105) as a plurality of sheet packages 100 are arranged in a direction in which each stacking direction SD matches the juxtaposition direction JD, and adjacent sheet packages 100 (See FIG. 6).

In step S12, the plurality of sheet packages 100 are compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90% (see FIG. 13). In this embodiment, each sheet package 100 (sheet packages 101 to 105) has a juxtaposition length L2 of 60% or more and less than 90% after compression, when the juxtaposition length L1 before compression is 100%. It is compressed in the juxtaposition direction JD so that

In step S13, the plurality of sheet packages 100 are stored in the collective packaging bag 30 in a compressed state. In this embodiment, each sheet package 100 (sheet packages 101 to 105) is stored in the collective packaging bag 30 while being compressed in the juxtaposition direction JD at a compression ratio of 60% or more and less than 90%, and the collective packaging bag 30 after being stored is The collective packaging bag 30 is sealed so that the compression ratio within the bag 30 is maintained at 60% or more and less than 90% (see FIGS. 5 and 7).

In the method for manufacturing a sheet assembly package according to the present embodiment, a plurality of sheet packages 100 (sheet packages 101 to 105) containing a sheet laminate 10 in which a plurality of moisturizing sheets S are stacked are stacked in the stacking direction. They are juxtaposed with their SDs matching, and compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90%, and then stored in the collective packaging bag 30 (steps S11 to S13 are executed). Therefore, even if the moisture-retaining sheet S changes over time, it is possible to suppress a decrease in the bulk of each sheet package 100 (sheet packages 101 to 105) within the collective packaging bag 30. Thereby, it is possible to provide a sheet assembly package 200 in which a stable packaging state of a plurality of sheet packages 100 (sheet packages 101 to 105) arranged side by side can be obtained.

Further, in the method for manufacturing a sheet assembly package according to the present embodiment, the plurality of sheet packages 100 (sheet packages 101 to 105) are assembled in a state compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90%. It is housed in a packaging bag 30 (see FIG. 13). As a result, when a plurality of sheet assembly packages 200 are stacked up, it is possible to prevent the plurality of sheet assembly packages 200 from tilting or collapsing significantly in the stacked state (see FIGS. 9 and 10). ).

Hereinafter, the present invention will be further described in detail using Examples. Evaluations of Examples and Comparative Examples were performed under the following conditions.

[Sheet packaging (individual packaging)]
The sheet laminate 10 is made of tissue paper in which moisturizing sheets S are alternately folded and stacked so that they can be pulled out one by one in a pop-up style (dimensions: height approximately 58 mm, width approximately 180 mm, length approximately 101 mm, weight approximately 120 g ) was housed in a packaging bag 20 made of a polyethylene laminate film with a thickness of about 62 μm (see FIGS. 1 and 3).

[Sheet assembly package]
Five sheet packages 100 (sheet packages 101 to 105) as a plurality of sheet packages 100 are arranged side by side in a collective packaging bag 30 formed of a polyethylene film with a thickness of about 35 μm in a state where the stacking direction SD matches. , and compressed in the juxtaposition direction JD at a compression rate of 60% or more and less than 90% (see FIGS. 5 to 7 and 13).

[Stowage test]
A pattern (stacking pattern) 300 is formed by stacking a plurality of sheet assembly packages 200 (sheet assembly packages 201 to 212) in two rows of six stages (see FIG. 8), and the stacking pattern after one week is Changes were confirmed (Figures 9 to 12). The evaluation criteria are as follows. In addition, ◎ and ○ were evaluated as good, and △ and × were evaluated as poor.
◎: The stacking pattern has hardly changed 〇: The stacking pattern has tilted slightly △: The stacking pattern has tilted significantly ×: The stacking pattern has collapsed

Examples and comparative examples will be described below.

[Example 1]
Sheet packages 100 (sheet packages 101 to 105) housed in the packaging bag 20 with the sheet laminate 10 compressed at a compression rate of 74% in the stacking direction SD are compressed at a compression rate of 80% in the juxtaposition direction JD. A stacking test was conducted on the sheet aggregate package 200 housed in the aggregate packaging bag 30. The results are shown in Table 1.

[Example 2]
A stacking test was conducted in the same manner as in Example 1, except that the compression ratio of the sheet assembly package 200 was set to 85%. The results are shown in Table 1.

[Example 3]
A stacking test was conducted in the same manner as in Example 1, except that the compression ratio of the sheet assembly package 200 was set to 90%. The results are shown in Table 1.

[Example 4]
A stacking test was conducted in the same manner as in Example 1, except that the compression ratio of the sheet package 100 was set to 90%. The results are shown in Table 1.

[Example 5]
A stacking test was conducted in the same manner as in Example 2, except that the compression ratio of the sheet package 100 was set to 90%. The results are shown in Table 1.

[Comparative example 1]
A stacking test was conducted in the same manner as in Example 4, except that the compression ratio of the sheet assembly package 200 was set to 95%. The results are shown in Table 1.

[Comparative example 2]
A stacking test was conducted in the same manner as in Example 4, except that the compression ratio of the sheet assembly package 200 was set to 100% (it was not compressed). The results are shown in Table 1.

From Table 1, if the compression ratio of the sheet packaging body 100 is 74% and the compression ratio of the sheet assembly packaging body 200 is less than 90%, the compression ratio of the sheet packaging body 100 is 74% and the compression ratio of the sheet assembly packaging body 200 is 90%, and when the compression ratio of the sheet packaging body 100 was 90% and the compression ratio of the sheet assembly packaging body 200 was less than 90%, the results were good (Examples 1 to 5, FIGS. 8 to 8). 10).

On the other hand, when the compression ratio of the sheet packaging body 100 was 90% and the compression ratio of the sheet collective packaging body 200 was 95% or more, both cases were defective (Comparative Examples 1 and 2, FIGS. 11 and 12 reference).

From these results, a sheet package in which the sheet laminate is stored in a packaging bag with the sheet laminate compressed in the lamination direction at a compression rate of 50% or more and 80% or less contains a sheet laminate on which moisturizing sheets are laminated. It has been found that stable stacking as a sheet assembly package can be performed even when In addition, a sheet assembly package in which a plurality of sheet packages are compressed in the juxtaposed direction with a compression rate of 60% or more and less than 90% and is housed in a collective packaging bag is a sheet package in which a moisture-retaining sheet is laminated on the sheet package. It has been found that stable stacking can be performed even when sheet stacks are accommodated.

Although the embodiments of the present invention have been described above, the present invention is not limited to specific embodiments, and various modifications and changes can be made within the scope of the invention described in the claims. .

100, 101, 102, 103, 104, 105 Sheet package 10 Sheet laminate S Moisture-retaining sheet 20 Packaging bag 21 Top surface 21A Outlet 22 Bottom surface 23 Front surface 24 Back surface 25, 26 Side surface SD Lamination direction H1 Lamination height (compression Before)
H2 Stacking height (after compression)
200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212 Sheet collective packaging body 30 Collective packaging bag 31 Top surface 31A Center 32 Bottom surface 33 Front surface 34 Back surface 35, 36 Side surface 37 Handle 37A Lower end 37B End 37C End 37D Center JD Direction of juxtaposition L1 Length of juxtaposition (before compression)
L2 juxtaposition length (after compression)
300, 301, 302, 303 Stowage pattern

Claims (2)

supplying a sheet laminate in which a plurality of moisturizing sheets are laminated;
compressing the sheet laminate in the lamination direction at a compression rate of 50% or more and 80% or less;
accommodating the sheet laminate in the compressed state in a packaging bag to obtain a sheet package;
arranging a plurality of sheet packages side by side with their stacking directions matching;
compressing the plurality of sheet packages in the juxtaposed direction at a compression rate of 70% or more and 85% or less;
and accommodating the plurality of sheet packages in the compressed state in a collective packaging bag. The method for manufacturing a sheet assembly package according to claim 1, wherein the sheet laminate is caramel wrapped.

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