Package

Abstract

To improve the formability, operability, and beautifulness associated with a package.SOLUTION: A package 1 covers an article to be packaged by using a packaging base material 10. The packaging base material 10 is a tubular film, and the article to be packaged is a laminate 11 of tissue paper not impregnated with lotion-based chemical solution. The laminate 11 is gusset-packaged by using the tubular film, and a sealing section 13 is formed at both ends respectively in an MD direction of the tubular film.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a packaging body suitable for use in packaging paper products such as tissue paper. [Background technology]

[0002] Soft packs of tissues have been sold for some time and are convenient to carry around (see Patent Document 1). In particular, caramel-packaged and pillow-packaged tissues are widely sold. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-038229 A Summary of the Invention [Problem to be solved by the invention]

[0004] Caramel packaging has a good shape (in other words, appearance) of the package. In addition, since the shape is easily maintained, it is difficult to collapse even if the amount of contents is reduced.

[0005] On the other hand, caramel packaging is difficult. Specifically, unless the height of the tissue paper stack is relatively constant, the heat seal during packaging (specifically, sealing) is not stable. For this reason, defective products are often produced during packaging depending on the original roll due to the difference in the height of the stack between the top and bottom rolls of the original roll.

[0006] In addition, while pillow packaging is easy to use, the shape of the package (in other words, the appearance) is poor. In contrast, when a tube-type film is used, packaging is easy and the shape of the package is good.

[0007] However, when the tissue paper laminate is light (specifically, the density of the tissue paper laminate is low) and the tissue paper is soft, the shape of the package is poor, and when both ends of the tube bag are heat-sealed, it is difficult to fold the gusset in. On the other hand, when the rigidity of the film is made soft to make it easier to fold the gusset in, there is a problem that the film loses firmness and the shape is poor.

[0008] Furthermore, if the distance between the longitudinal end of the tissue paper laminate and the heat-sealed portion is too short, it is difficult to fold the gusset in. On the other hand, if the distance is too long, the gusset can be easily folded in, but the contents tend to move around, causing wrinkles and creases in the tissue paper.

[0009] For this reason, in a package in which tissue paper is gusset-packaged with a tube-type film, with the longitudinal dimension of the tissue paper laminate and the distance between the longitudinal end of the tissue paper laminate and the heat-sealed part of the film falling within a prescribed range, a package is desired which has excellent shape, is easy to fold into the gusset, and is less likely to cause wrinkling or folding of the tissue paper inside, even when the tissue paper is light and soft.

[0010] Therefore, in one aspect, the present invention aims to provide a technique capable of improving morphology, operability, and cosmetic properties. [Means for solving the problem]

[0011] In order to solve the above problems, the present invention provides a package that covers an article to be packaged with a packaging base material, the packaging base material being a tubular film, the article to be packaged being a laminate of tissue papers that are not impregnated with a lotion-based medicinal solution, the laminate being gusset-packaged with the tubular film, the bending resistance in the MD direction of the tubular film being 2 [mN / 10 sheets] or more and 25 [mN / 10 sheets] or less, the height of the laminate being 20 mm or more and 60 mm or less, and the density of the laminate being 0.080 g / cm3 More than 0.30g / cm 3 or less, and a sealed portion is formed at each of both end portions in the MD direction of the tubular film, and the difference between the dimension between the sealed portions and the longitudinal dimension of the laminate may be 10 mm or more and 60 mm or less.

[0012] In the package according to the present invention, the gusset in the gusset package may have a folding width of 10 mm or more and 50 mm or less.

[0013] The packaging body according to the present invention may be configured so that the dimension between the sealed portions is 125 mm or more and 210 mm or less.

[0014] In the packaging body according to the present invention, the tubular film may have a multi-layer structure.

[0015] The packaging body according to the present invention has a basis weight of the tubular film of 32 g / m 2 More than 90g / m 2 The following may be adopted.

[0016] In the package according to the present invention, the tubular film may have a thickness of 35 μm or more and 100 μm or less.

[0017] In the package according to the present invention, the laminate may have a longitudinal dimension of 110 mm or more and 180 mm or less.

[0018] In the packaging body according to the present invention, the basis weight per ply of the tissue paper is 9.5 g / m 2 More than 17.5g / m 2 The following may be adopted.

[0019] In the packaging body of the present invention, the thickness of the thin paper may be 0.5 mm / 10 sheets or more and 1.1 mm / 10 sheets or less.

[0020] The packaging material according to the present invention has a specific volume of the tissue paper of 4.0 cm 3 / g or more 8.5cm 3 / g or less.

[0021] The packaging body according to the present invention may be configured such that the number of sets of the thin papers constituting the laminate is 70 sets or more and 150 sets or less.

[0022] The packaging body according to the present invention may be configured such that the tissue paper is V-folded.

[0023] In the packaging body according to the present invention, the packaging base material may have an ash content of 1.5% or more and 12% or less. Effect of the Invention

[0024] According to one aspect of the present invention, it is possible to improve the shape, operability, and cosmetic properties. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a diagram showing an example of a package of the present invention, and is a perspective view showing the state in which the packaged item is packaged. [Diagram 2] FIG. 2 is a perspective view showing an example of gusset packaging of the packaging body of the present invention. [Diagram 3] FIG. 2 is a cross-sectional view showing an example of a gusset of the packaging body of the present invention. [Figure 4] 1 is a perspective view showing an example of an item to be packaged in the packaging body of the present invention. FIG. [Diagram 5] 1 is a perspective view showing an example of an item to be packaged in the packaging body of the present invention. FIG. [Figure 6] 1 is a perspective view showing an example of an item to be packaged in the packaging body of the present invention. FIG. [Figure 7] FIG. 2 is a side view showing an example of an item to be packaged in the packaging body of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, the embodiments of the present invention will be described with reference to the accompanying drawings. Note that the following embodiments are presented for illustrative purposes, and the configuration of the present invention is not limited to the contents of the following embodiments. Also, each figure is a schematic diagram for explaining the configuration of the present invention, and does not strictly define the dimensional relationship between members and each part.

[0027] In the description of the present invention, the MD direction means the direction of the production line during the manufacture of the package (in other words, the conveying direction; also referred to as the "flow direction"), and the CD direction means the direction perpendicular to the direction of the production line during the manufacture of the package (i.e., the MD direction). Note that the relationship between the orientation of the package 1 (including the packaging substrate 10 and the laminate 11) and the MD and CD directions in each drawing is merely an example for explaining the embodiment of the present invention, and the relationship between the orientation of the package 1 (including the packaging substrate 10 and the laminate 11) and the MD and CD directions in the actual manufacturing process is not limited to the relationship in each drawing.

[0028] (Overall composition) FIG. 1 is a perspective view showing an example of a packaging body 1 according to an embodiment in a state in which an article to be packaged is packaged, as an example of a specific configuration of the packaging body according to the present invention.

[0029] The packaging body 1 in the embodiment is a packaging body in which the packaged item is covered with a packaging base material 10, the packaging base material 10 being a tubular film, the packaged item being a laminate 11 of tissue paper that is not impregnated with a lotion-based medicinal liquid, the laminate 11 being gusset-packaged by the tubular film, and a seal portion 13 being formed at each of both ends in the MD direction of the tubular film.

[0030] The packaging body 1 is particularly suitable for packaging soft paper products such as tissue paper. The item to be packaged in the packaging body 1 is specifically a tissue paper laminate 11 made by laminating tissue papers that are not impregnated with a lotion-based medicinal solution, and is also referred to as "tissue paper laminate 11" in the explanation of this invention.

[0031] A lotion-based liquid medicine that is not impregnated into the tissue paper is, for example, a liquid medicine containing lotion that is impregnated into general-purpose wet tissue. An example of a lotion-based liquid medicine that is not impregnated into the tissue paper is a liquid medicine containing glycerin and silicone that can smooth the tissue paper and, in turn, the tissue paper laminate 11, and an example of the silicone is amino-modified silicone.

[0032] The packaging body 1 in the embodiment has a packaging base material 10 covering a tissue paper laminate 11, and both ends in the MD direction of the packaging base material 10 are folded as gussets 12, and then sealed by forming seal portions 13.

[0033] In gusset packaging, the packaging base material 10 is fed out from a roll of raw material around which the packaging base material 10 is wound, and cut according to the length of the bag in the MD direction (in other words, the height). Then, a gusset 12 is formed at one end in the MD direction, the edges are closed, and a seal part 13 is formed and joined (in other words, sealed) in a horizontal line along the width direction (specifically, the CD direction) by heat sealing or the like, to produce a bag with only the other end in the MD direction open. The other end in the MD direction of the bag is opened to form an insertion opening 16, and as shown in FIG. 2, the packaged item (specifically, the tissue paper laminate 11) is inserted into the inside of the packaging base material 10 from the insertion opening 16, and a gusset 12 is formed at the end on the insertion opening 16 side, the edges are closed, and a seal part 13 is formed and joined (in other words, sealed) in a horizontal line along the width direction (specifically, the CD direction) by heat sealing or the like.

[0034] The packaging substrate 10 may be wound in a rolled form with a pair of mountain folds and a valley fold between the pair of mountain folds formed on each of two mutually opposing side surfaces in the CD direction of the tubular packaging substrate 10, and these two side surfaces folded inwardly (see FIG. 3). In this case, the mountain folds and the valley folds may have lines, and creases may be made along the lines.

[0035] The packaging body 1 preferably has an opening (not shown) for removing the tissue paper that constitutes the tissue paper laminate 11. This opening is preferably provided by forming a tear line such as a perforation in the packaging base material 10 so that the opening can be opened by cutting along the tear line when in use. The tear line may be, for example, a single perforated line.

[0036] The gusset 12 is formed at each of both end portions in the MD direction of the packaging base material 10.

[0037] FIG. 3 is a cross-sectional view of the gusset 12, specifically, a cross-sectional view perpendicular to the MD direction at a position near the sealed portion 13 (that is, a vertical cross-sectional view).

[0038] The gusset 12 is formed by making valley folds on both sides in the CD direction of the tubular packaging base material 10 and folding them symmetrically inward.

[0039] The dimension W of the part of the gusset 12 that is folded inwardly is the folded width of the gusset 12.

[0040] Although the fold width of the gusset 12 is not limited to a specific value, the lower limit is preferably 10 mm or more, more preferably 13 mm or more, and even more preferably 15 mm or more, and the upper limit is preferably 50 mm or less, more preferably 40 mm or less, and even more preferably 25 mm or less.

[0041] If the fold width of the gusset 12 is less than 10 mm, the packaging base material 10 is too tight against the tissue paper laminate 11, making the tissue paper more likely to wrinkle or fold, resulting in a decrease in aesthetic appeal. On the other hand, if the fold width of the gusset 12 is more than 50 mm, the shape of the package 1 is reduced.

[0042] The tightness refers to the degree of strength with which the packaging base material 10 envelops (and stably supports) the tissue paper laminate 11. The formability refers to the degree of the appearance or good looks of the packaging body 1.

[0043] The sealed portions 13 are formed on both ends in the MD direction of the packaging substrate 10, and are generally linear band-like along the CD direction, and are generally parallel to each other. The sealed portions 13 are provided so as to seal the packaging substrate 10, which is folded flat by the gusset 12 at the ends in the MD direction of the packaging substrate 10, with a seal layer (e.g., a heat seal layer).

[0044] The dimension between the seal portions 13 formed at both ends of the packaging substrate 10 in the MD direction is not limited to a specific value, but the lower limit is preferably 125 mm or more, more preferably 140 mm or more, and even more preferably 165 mm or more, and the upper limit is preferably 210 mm or less, more preferably 200 mm or less, and even more preferably 185 mm or less. The dimension between the seal portions 13 in the description of the present invention is the dimension when the tissue paper laminate 11 is inserted into the packaging substrate 10 and the packaging substrate 10 packages the tissue paper laminate 11. The dimension between the seal portions 13 is also referred to as the "dimension C between the seal portions." The measurement may be performed by pinching the center of one of the sealed portions 13 in the longitudinal direction (CD direction of the packaging substrate 10) with one hand, lifting up the entire packaging substrate 10 (at this time, the tissue paper laminate 11 in the packaging substrate 10 will lower by its own weight to the other, i.e., the lower sealed portion 13 in the lifted state, causing the packaging substrate 10 to be in a taut state), and measuring the distance from one sealed portion 13 to the other sealed portion 13 with a ruler. Measurement may also be performed at the ends of the sealed portions 13, and the average of the values ​​at both ends (i.e., two points) may be used as the dimension between the sealed portions 13.

[0045] If the distance between the sealed portions 13 is less than 125 mm, the packaging base material 10 is too tight against the tissue paper laminate 11, making the tissue paper more likely to wrinkle or fold, and reducing the aesthetic appeal. On the other hand, if the distance between the sealed portions 13 is more than 210 mm, the packaging base material 10 is less tight against the tissue paper laminate 11, and the tissue paper laminate 11 becomes unstable and shifts inside the packaging base material 10, making the tissue paper more likely to wrinkle or fold, and reducing the aesthetic appeal.

[0046] (Packaging base material) The packaging substrate 10 includes at least a film substrate. It is preferable that the packaging substrate 10 does not include a paper substrate. The packaging substrate 10 may be printed, and in that case, it is preferable that the printed surface is laminated. The basis weight value described below is a value including the printing ink.

[0047] The packaging substrate 10 preferably contains 90% by weight or more, more preferably 95% by weight or more, of the film substrate. More preferably, the packaging substrate 10 contains only the film substrate, that is, is a film substrate. For example, the milky white film contains ash. When the film substrate contains ash, the ash is also considered to be the film substrate.

[0048] The packaging substrate 10 is preferably tubular, and when the packaging substrate 10 is a film substrate, it is preferably a tubular film. A tubular film is a film obtained by forming a sheet-like film into a cylindrical shape like a tube.

[0049] The basis weight of the packaging substrate 10 (if the packaging substrate 10 is a film substrate, the basis weight of the film substrate) is not limited to a specific value, but the lower limit is preferably 32 g / m 2 More preferably, 45 g / m 2 More preferably, 54 g / m 2 The upper limit is preferably 90 g / m 2 Less than 81 g / m 2 Less than 72 g / m, more preferably 72 g / m2 The basis weight of the packaging substrate 10 can be measured in accordance with JIS P 8124. The basis weight of the packaging substrate 10 is a value including the amount of ash and ink described above.

[0050] The packaging substrate 10 has a basis weight of 32 g / m 2 If the basis weight of the packaging substrate 10 is less than 90 g / m, the shape of the packaging body 1 cannot be adequately maintained, and the shape of the packaging body 1 deteriorates. 2 If the thickness exceeds this value, folding of the gusset becomes difficult, and operability decreases.

[0051] The thickness of the packaging substrate 10 (when the packaging substrate 10 is a film substrate, the thickness of the film substrate) is not limited to a specific value, but the lower limit is preferably 35 μm or more, more preferably 50 μm or more, and even more preferably 60 μm or more, and the upper limit is preferably 100 μm or less, more preferably 90 μm or less, and even more preferably 80 μm or less. The thickness of the packaging substrate 10 can be measured in accordance with JIS K7130.

[0052] If the thickness of the packaging substrate 10 is less than 35 μm, the shape of the packaging body 1 cannot be adequately maintained, and the shape of the packaging body 1 deteriorates. On the other hand, if the thickness of the packaging substrate 10 exceeds 100 μm, it becomes difficult to fold the gusset, and operability deteriorates.

[0053] The bending resistance in the MD direction of the packaging substrate 10 (if the packaging substrate 10 is a film substrate, the bending resistance in the MD direction of the film substrate) is not limited to a specific value, but the lower limit is preferably 2 [mN / 10 sheets] or more, more preferably 7 [mN / 10 sheets] or more, even more preferably 10 [mN / 10 sheets] or more, and the upper limit is preferably 25 [mN / 10 sheets] or less, more preferably 22 [mN / 10 sheets] or less, even more preferably 17 [mN / 10 sheets] or less.

[0054] The bending resistance in the MD direction of the packaging substrate 10 can be measured in accordance with JIS P 8125-1:2017 (ISO2493). For example, it can be measured using an L&W bending tester (manufactured by Lorentzen & Wettre). Specifically, a test piece with a width of 38 mm and a length of 80 mm is set in the test machine. The measured value in the MD direction when the bending angle is 15 degrees and the bending length (span of the sample table) is 10 mm is taken as the bending resistance (load). In addition, for a soft (low rigidity) sample such as a film, if a single test piece is used, the bending resistance is too small to be measured or the difference between the test pieces is difficult to obtain. For this reason, in the explanation of the present invention, the results of the measurement performed by stacking a total of 10 test pieces, 5 pieces with the front side up and 5 pieces with the back side up, in the test machine are shown. In this case, when chucking the test pieces, the 10 pieces are arranged so as not to shift before chucking.

[0055] If the bending resistance of the packaging substrate 10 in the MD direction is less than 2 [mN / 10 sheets], the shape of the package 1 cannot be adequately maintained, and the shape of the package 1 deteriorates. On the other hand, if the bending resistance of the packaging substrate 10 in the MD direction exceeds 25 [mN / 10 sheets], it becomes difficult to fold the gusset, and operability deteriorates.

[0056] (Film substrate) The film constituting the film substrate included in the packaging substrate 10 is preferably composed of multiple layers. That is, the packaging substrate 10 is preferably a tube-type film composed of multiple layers.

[0057] If the film constituting the film substrate included in the packaging substrate 10 is a single layer, the shape of the packaging body 1 cannot be adequately maintained, and the shape of the packaging body 1 deteriorates.

[0058] As the film constituting the film substrate, a plastic (thermoplastic resin) film used in packaging ordinary paper products can be used without any particular limitations on the material of the film. The film constituting the film substrate may be surface-treated, and is preferably a matte film from the viewpoints of aesthetics and slip resistance.

[0059] Examples of materials for the plastic film include thermoplastic resins such as polyolefin (polyethylene, polypropylene, etc.), polyester (PET, etc.), polyamide (nylon, etc.), polycarbonate, polystyrene, and polyvinyl chloride, with polyethylene being preferred.

[0060] As a specific configuration, the material of the film in the outermost layer of the film substrate is preferably any one selected from among textured polyethylene, milky polyethylene, linear low-density polyethylene, and unoriented polypropylene. The material of the film in the innermost layer is preferably any one selected from the above four types of materials. The film materials in the outermost layer and the innermost layer may be the same or different. The outermost layer of the film substrate is the layer on the outer surface side when formed into the packaging body 1, and the innermost layer of the film substrate is the layer on the inner surface side when formed into the packaging body 1, and is the layer (in other words, the surface) that comes into contact with the tissue paper laminate 11 contained in the packaging body 1 (packaging substrate 10).

[0061] As a specific configuration, it is more preferable that the material of the film in the outermost layer of the film substrate is a matte polyethylene, and it is more preferable that the material of the film in the innermost layer of the film substrate is a milky polyethylene, and it is preferable that the outermost layer and the innermost layer are extrusion laminated. By adopting such a configuration, it is possible to improve the packaging form and the ease of folding the gusset.

[0062] When the outermost layer is textured polyethylene, the textured polyethylene has a moderate slipperiness, making it easy to fold the gusset in. Also, when the innermost layer is milky white polyethylene, the friction with the paper product is small, preventing the tissue paper from easily becoming wrinkled or folded, which would reduce the cosmetic quality.

[0063] The method of matte finishing the film substrate is not limited to a specific procedure or method, and may be any conventional method, such as a method of pressing the surface of the film substrate against an embossing roll or a matte roll during molding to give the film substrate an uneven surface, or a method of giving uneven surfaces by sandblasting. Alternatively, for example, a method of using a polymer blend or a method of biaxially stretching a laminate of a polyolefin resin blend may be used without performing surface processing as described above. These methods may be performed during molding of a tube-type film, but it is preferable to perform them on a single layer of polyethylene to obtain a matte polyethylene film, and then laminate it with a milky white polyethylene film or the like as the innermost layer.

[0064] When the film substrate included in the packaging substrate 10 is composed of three layers, for example, the material of the film in the outermost layer (i.e., the layer on the outer surface side when formed into the packaging body 1) of the film substrate may be matte polyethylene, the material of the film in the innermost layer (i.e., the layer on the inner surface side when formed into the packaging body 1) may be milky polyethylene, and the material of the film in the middle layer (i.e., the laminate layer between the outermost layer and the innermost layer) may be polyethylene. Note that the number of layers does not include the ink layer.

[0065] In addition, although the ash content of the packaging substrate 10 is not limited to a specific value, the lower limit is preferably 1.5% or more, more preferably 2.0% or more, and even more preferably 2.5% or more, and the upper limit is preferably 12% or less, more preferably 10% or less, and even more preferably 8.0% or less.

[0066] Specifically, the ash content refers to the proportion of minerals such as calcium, iron, sodium, magnesium, phosphorus, and potassium, and can be measured in accordance with JIS P 8251. The ash content can be calculated by the following formula 1, and in the explanation of the present invention, the absolute dry mass of the test piece in the following formula is regarded as the mass of the test piece of the packaging substrate 10 when it is conditioned at 23° C. and 50% humidity. (Formula 1) Ash content (%) = mass of residue (g) ÷ bone dry mass of test piece (g) × 100

[0067] If the ash content of the packaging substrate 10 is less than 1.5%, folding of the gusset becomes difficult, and operability decreases. On the other hand, if the ash content of the packaging substrate 10 exceeds 12%, the stiffness of the packaging substrate decreases as the ash content increases, and the shape of the package decreases.

[0068] The packaging substrate 10 may have other layers in addition to the film substrate. Examples of the other layers include a water vapor barrier layer, an oxygen barrier layer, a print layer, a printability improving layer, an overprint layer, and a light-shielding layer. These other layers can be provided, for example, on the surface in contact with the tissue paper laminate 11 or on the surface in contact with the outside air, and may be one layer or two or more layers.

[0069] (Packaged item) 4 to 6 are perspective views showing an example of a tissue paper laminate 11 which is an article to be packaged in the packaging body 1 (specifically, the packaging base material 10).

[0070] The thin paper constituting the thin paper laminate 11 is not limited to a specific type, but may be, for example, tissue paper, wiper paper, paper hand towel, or the like.

[0071] The thin paper laminate 11 is preferably a tissue paper laminate in which tissue papers (tissue papers not impregnated with a lotion-based medicinal liquid) are laminated.

[0072] The basis weight of the thin paper (for example, one ply of tissue paper) constituting the thin paper laminate 11 is not limited to a specific value, but the lower limit is preferably 9.5 g / m 2 More preferably, 12 g / m 2 More preferably, 13.5 g / m 2 The upper limit is preferably 17.5 g / m 2 Less than or equal to 16.5 g / m 2 or less, more preferably 15.5 g / m 2 The basis weight of the thin paper can be measured in accordance with JIS P 8124. The basis weight of the thin paper is measured after it is kept in equilibrium under temperature and humidity conditions specified in JIS P 8111 (specifically, 23±1°C, 50±2% RH).

[0073] The basis weight of the thin paper (for example, one ply of tissue paper) constituting the thin paper laminate 11 is 9.5 g / m 2 If the thickness is less than 17.5 g / m, the tissue paper will be thin and flimsy, and will be easily wrinkled or folded, resulting in a decrease in aesthetic value. 2 If the thickness exceeds this value, the height of the tissue paper laminate 11 will be large and bulky, making it difficult to fold the gusset, and reducing operability.

[0074] The thickness of the thin paper (e.g., tissue paper) constituting the thin paper laminate 11 is not limited to a specific value, but the lower limit is preferably 0.50 [mm / 10 sheets] or more, more preferably 0.70 [mm / 10 sheets] or more, and even more preferably 0.80 [mm / 10 sheets] or more, and the upper limit is preferably 1.1 [mm / 10 sheets] or less, more preferably 1.0 [mm / 10 sheets] or less, and even more preferably 0.95 [mm / 10 sheets] or less. When the thin paper is tissue paper, 2 plies for 5 sets corresponds to 10 sheets.

[0075] The thickness of thin paper (e.g., tissue paper) can be measured, for example, using a thickness gauge (dial thickness gauge "PEACOCK" manufactured by Ozaki Seisakusho Co., Ltd.). Specifically, for example, the measurement conditions are a measurement load of 3.7 kPa and a gauge diameter of 30 mm, a sample is placed between the gauge and the measurement table, and the gauge is read when the gauge is lowered at a speed of 1 mm or less per second. The measurement is repeated 10 times (note that the same place is not measured 10 times, but 10 different places are measured), and the average of the measurement results is taken as the final paper thickness. In addition, the thickness of thin paper is measured after being kept in equilibrium under temperature and humidity conditions specified in JIS P 8111 (specifically, 23 ± 1 ° C, 50 ± 2% RH).

[0076] If the thickness of the thin paper (e.g., tissue paper) constituting the thin paper laminate 11 is less than 0.50 [mm / 10 sheets], the thin paper becomes thin and flimsy, and is easily wrinkled or folded, resulting in a decrease in aesthetic value. On the other hand, if the thickness of the thin paper (e.g., tissue paper) constituting the thin paper laminate 11 exceeds 1.1 [mm / 10 sheets], the height of the thin paper laminate 11 becomes high and bulky, making it difficult to fold the gusset, and reducing operability.

[0077] The specific volume of the thin paper (for example, one ply of tissue paper) constituting the thin paper laminate 11 is not limited to a specific value, but the lower limit is preferably 4.0 cm 3 / g or more, more preferably 4.5 cm 3 / g or more, more preferably 5.2 cm 3 / g or more, and the upper limit is preferably 8.5 cm 3 / g or less, more preferably 7.5 cm 3 / g or less, more preferably 6.8 cm 3 The specific volume is calculated by dividing the thickness of the thin paper (e.g., one ply of tissue paper) by the basis weight of the thin paper (e.g., one ply of tissue paper), and expressing the volume cm per unit g. 3 This is expressed as:

[0078] The specific volume of the thin paper (for example, one ply of tissue paper) constituting the thin paper laminate 11 is 4.0 cm 3 If the specific volume of the tissue paper constituting the tissue paper laminate 11 (for example, one ply of tissue paper) is less than 8.5 cm3 / g, the tissue paper will be thin and flimsy, and will be easily wrinkled or folded, resulting in a decrease in aesthetic value. 3 If it exceeds 1 / g, the height of the tissue paper laminate 11 will be large and bulky, making it difficult to fold the gusset, and reducing operability.

[0079] The tissue paper laminate 11 is preferably a tissue paper laminate having two plies of tissue paper laminated together.

[0080] The number of pairs of tissue paper (e.g., two-ply tissue paper) constituting the tissue paper laminate 11 is not limited to a specific value, but the lower limit is preferably 70 pairs or more, more preferably 80 pairs or more, and even more preferably 90 pairs or more, and the upper limit is preferably 150 pairs or less, more preferably 140 pairs or less, and even more preferably 120 pairs or less.

[0081] If the number of sets of tissue papers (e.g., 2-ply tissue paper) constituting the tissue paper laminate 11 is less than 70 sets, the packaging base material 10 will not be tight enough to the tissue paper laminate 11, and the tissue paper laminate 11 will become unstable and shift inside the packaging base material 10, making the tissue paper more likely to wrinkle or fold, resulting in a decrease in aesthetic appeal. On the other hand, if the number of sets of tissue papers (e.g., 2-ply tissue paper) constituting the tissue paper laminate 11 exceeds 150 sets, the height of the tissue paper laminate 11 will be high and bulky, making it difficult to fold the gusset, and reducing operability.

[0082] The method for folding and stacking the tissue paper is not limited to a specific procedure or method, but for example, a rotary interfolder (IF) may be used, or a multi-stand interfolder (MF) may be used.

[0083] As shown in FIG. 7, the tissue paper constituting the tissue paper laminate 11 is preferably V-folded so that approximately half of the opposing tissue paper 14 overlapping each other in the vertical direction is sandwiched between each other in the CD direction in a line of sight (i.e., side view) along the MD direction (specifically, the direction in which the tissue paper laminate 11 is inserted) of the packaging body 1 (specifically, the packaging base material 10). This allows the tissue paper 14 constituting the tissue paper laminate 11 to be taken out of the packaging body 1 (specifically, the packaging base material 10) in a pop-up style. Note that the relationship between the V-fold direction of the tissue paper 14 constituting the tissue paper laminate 11 in FIG. 7 and the MD and CD directions is merely an example, and the relationship between the V-fold direction of the tissue paper 14 in the actual manufacturing process and the MD and CD directions is not limited to the relationship in FIG. 7 (specifically, it differs depending on whether the method of stacking the tissue paper is a rotary interfolder (IF) or a multi-stand interfolder (MF)).

[0084] Although the height of the thin paper laminate 11 (e.g., a tissue paper laminate) is not limited to a specific value, the lower limit is preferably 20 mm or more, more preferably 25 mm or more, and even more preferably 30 mm or more, and the upper limit is preferably 60 mm or less, more preferably 50 mm or less, and even more preferably 45 mm or less.

[0085] The height of the tissue paper laminate 11 is a dimension along a direction perpendicular to both the MD and CD directions (specifically, a vertical direction). This dimension may be calculated, for example, by measuring the dimensions b1 to b4 of each of the four vertical sides of the tissue paper laminate 11 shown in FIG. 4 and averaging them.

[0086] If the height of the tissue paper laminate 11 is less than 20 mm, the packaging base material 10 will not be tight enough to fit the tissue paper laminate 11, and the tissue paper laminate 11 will become unstable and shift inside the packaging base material 10, making the tissue more likely to wrinkle or fold, reducing aesthetic appeal. On the other hand, if the height of the tissue paper laminate 11 exceeds 60 mm, it will be difficult to fold the gusset, reducing operability.

[0087] Although the longitudinal dimension of the thin paper laminate 11 (e.g., a tissue paper laminate) is not limited to a specific value, the lower limit is preferably 110 mm or more, more preferably 120 mm or more, and even more preferably 130 mm or more, and the upper limit is preferably 180 mm or less, more preferably 170 mm or less, and even more preferably 160 mm or less.

[0088] The longitudinal dimension of the tissue paper laminate 11 may be calculated, for example, by measuring the dimensions c1 to c4 of each of the four sides of the tissue paper laminate 11 shown in Figure 5, which correspond to the long sides of the rectangle when viewed along the vertical direction, and averaging these dimensions. The longitudinal dimension of the tissue paper laminate 11 is also referred to as the "longitudinal dimension D of the laminate." The longitudinal dimension of the tissue paper laminate 11 is the dimension of the tissue paper laminate 11 along the direction connecting the sealed portions 13 of the packaging base material 10 (MD direction in the example shown in the figure).

[0089] If the longitudinal dimension of the tissue paper laminate 11 is less than 110 mm, the packaging base material 10 will not be tight enough to fit the tissue paper laminate 11, and the tissue paper laminate 11 will become unstable and shift inside the packaging base material 10, making the tissue more likely to wrinkle or fold, resulting in a decrease in aesthetic appeal. On the other hand, if the longitudinal dimension of the tissue paper laminate 11 exceeds 180 mm, it will be difficult to fold the gusset, resulting in a decrease in operability.

[0090] The difference (i.e., CD) between the dimension between the sealed portions 13 of the packaging base material 10 (i.e., dimension C between the sealed portions) and the longitudinal dimension of the tissue paper laminate 11 (i.e., longitudinal dimension D of the laminate) is not limited to a specific value, but the lower limit is preferably 10 mm or more, more preferably 15 mm or more, and even more preferably 25 mm or more, and the upper limit is preferably 60 mm or less, more preferably 50 mm or less, and even more preferably 40 mm or less.

[0091] If the difference between the dimension C between the sealed portions and the longitudinal dimension D of the laminate (i.e., CD) is less than 10 mm, the packaging base material 10 is too tight against the tissue paper laminate 11, making the tissue paper more likely to wrinkle or fold, and reducing the aesthetic appeal. On the other hand, if the difference between the dimension C between the sealed portions and the longitudinal dimension D of the laminate (i.e., CD) exceeds 60 mm, the packaging base material 10 is less tight against the tissue paper laminate 11, and the tissue paper laminate 11 becomes unstable and shifts inside the packaging base material 10, making the tissue paper more likely to wrinkle or fold, and reducing the aesthetic appeal.

[0092] Although the short dimension of the thin paper laminate 11 (e.g., a tissue paper laminate) is not limited to a specific value, the lower limit is preferably 80 mm or more, more preferably 90 mm or more, and even more preferably 95 mm or more, and the upper limit is preferably 130 mm or less, more preferably 120 mm or less, and even more preferably 115 mm or less.

[0093] The short side dimension of the tissue paper laminate 11 may be calculated, for example, by measuring the dimensions e1 to e4 of each of the four sides of the tissue paper laminate 11 shown in Fig. 6, which correspond to the short sides of the rectangle in the vertical line of sight, and averaging them. The short side dimension of the tissue paper laminate 11 is the dimension along a direction (CD direction in the example shown in the figure) perpendicular to the direction (MD direction in the example shown in the figure) connecting the sealed portions 13 of the packaging base material 10 of the tissue paper laminate 11.

[0094] If the short side dimension of the tissue paper laminate 11 is less than 80 mm, the packaging base material 10 will not be tight enough to fit the tissue paper laminate 11, and the tissue paper laminate 11 will become unstable and shift inside the packaging base material 10, making the tissue more likely to wrinkle or fold, reducing aesthetic appeal. On the other hand, if the short side dimension of the tissue paper laminate 11 exceeds 130 mm, it will be difficult to fold the gusset, reducing operability.

[0095] The base area of ​​the thin paper laminate 11 (e.g., a laminate of tissue paper) is not limited to a specific value, but the lower limit is preferably 13.0 cm2 More than 13.5cm, preferably 13.5cm 2 More than 14.3cm, preferably 14.3cm 2 The upper limit is preferably 17.5 cm. 2 Less than or equal to 17.0cm, more preferably 2 Less than or equal to 16.3 cm, more preferably 2 The following is the result.

[0096] The base area of ​​the tissue paper laminate 11 is the surface area of ​​the tissue paper laminate 11 in a vertical line of sight, and is specifically calculated by multiplying the long side dimension of the tissue paper laminate 11 by the short side dimension of the tissue paper laminate 11. For example, when the tissue paper 14 is folded in a V shape to form the tissue paper laminate 11 (see FIG. 7), the base area of ​​the tissue paper laminate 11 is the surface area of ​​the tissue paper 14 in a V-folded state in a vertical line of sight.

[0097] The base area of ​​the tissue paper laminate 11 is 13.0 cm 2 If the thickness is less than 17.5 cm, the packaging base material 10 will not be tight enough to fit the tissue paper laminate 11, and the tissue paper laminate 11 will not be stable inside the packaging base material 10 and will shift, causing the tissue to wrinkle or fold easily, resulting in a decrease in aesthetic value. 2 If the thickness exceeds this value, folding of the gusset becomes difficult, and operability decreases.

[0098] Although the weight of the thin paper laminate 11 (e.g., a tissue paper laminate) is not limited to a specific value, the lower limit is preferably 72 g or more, more preferably 82 g or more, and even more preferably 92 g or more, and the upper limit is preferably 153 g or less, more preferably 143 g or less, and even more preferably 123 g or less.

[0099] If the weight of the tissue paper laminate 11 is less than 72g, the packaging base material 10 will not be tight enough to fit the tissue paper laminate 11, and the tissue paper laminate 11 will not be stable and will shift inside the packaging base material 10, causing the tissue to wrinkle or fold easily, resulting in a decrease in aesthetic appeal. On the other hand, if the weight of the tissue paper laminate 11 is more than 153g, the packaging base material 10 will be too tight to fit the tissue paper laminate 11, causing the tissue to wrinkle or fold easily, resulting in a decrease in aesthetic appeal.

[0100] The density of the thin paper laminate 11 (for example, a laminate of tissue papers) is not limited to a specific value, but the lower limit is preferably 0.080 g / cm 3 More preferably, 0.10 g / cm 3 More preferably, 0.13 g / cm 3 The upper limit is preferably 0.30 g / cm 3 Less than or equal to 0.25 g / cm 3 More preferably, 0.20 g / cm 3 The following is the result.

[0101] The density of the tissue paper laminate 11 is calculated according to the following formula 2. The "weight" in the following formula 2 is the weight of the tissue paper laminate 11 in a state in which the tissue papers are stacked, and the "volume" in the following formula 2 is calculated according to the following formula 3. (Formula 2) Density (g / cm 3 ) = weight (g) ÷ volume (cm 3 ) (Formula 3) Volume (cm 3 ) = Longitudinal dimension of tissue paper laminate (cm) × Short side dimension of tissue paper laminate (cm) × Height of tissue paper laminate (cm)

[0102] The density of the tissue paper laminate 11 is 0.080 g / cm 3If the density of the tissue paper laminate 11 is less than 0.30 g / cm, the tightness of the packaging base material 10 with respect to the tissue paper laminate 11 will be weakened, and the tissue paper laminate 11 will become unstable and shift inside the packaging base material 10, causing the tissue paper to easily wrinkle or fold, resulting in a decrease in aesthetic value. 3 If the thickness exceeds this value, the packaging base material 10 will be too tight against the tissue paper laminate 11, causing the tissue paper to wrinkle or fold easily, resulting in a decrease in aesthetic appeal. EXAMPLES

[0103] Examples of the present invention will be described below. Note that the following examples are presented for illustrative purposes, and the configuration of the present invention is not limited to the contents of the following examples.

[0104] A tissue paper package was produced as an example of a specific configuration of the package according to the present invention using members having the physical properties, specifications, and specifications shown in Tables 1 to 3 below, and the following five items were used as evaluation criteria, with evaluation criteria 1 and 5 being scored from 1 to 5 points, and evaluation criteria 2 to 4 being scored from 1 to 4 points respectively. Specifically, a particularly good or particularly excellent condition was scored as 1 point, followed by conditions of 2 points, 3 points, and so on. Points 4 and 5 correspond to failures that do not meet the standards for a commercially available product.

[0105] Evaluation point 1: Packaging shape The better the packaging base material is in terms of appropriate firmness, for example, the more the gusset fold lines are sharp (in other words, the more the corners are rounded), and the better the appearance, the higher the score. In this example, specifically, a sensory evaluation was conducted by 20 monitors, who selected "good" or "bad" for the shape of the packaging. Scoring was performed according to the following criteria. 1 point: 18 or more people answered "good" above 2 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "Good" 4 points: 7 to 9 people answered "good" 5 points: 6 or fewer people answered "good"

[0106] Evaluation point 2: Tightness of packaging (beauty) The more adequate the strength of the packaging base material to encase (and stably support) the tissue paper laminate, the higher the score. In this example, specifically, a sensory evaluation was conducted by 20 monitors, who selected "good" or "bad" for the tightness of the packaging. Scoring was done according to the following criteria. 1 point: 18 or more people answered "good" above 2 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "Good" 4 points: 9 or fewer people answered "good"

[0107] Evaluation point 3: Ease of folding the gusset (operability) The easier it is to fold the gusset when sealing (specifically, heat sealing) the packaging base material, the higher the score. Specifically, in this example, a sensory evaluation was performed by 20 monitors, who selected "good" or "bad" for the ease of folding the gusset. The scores were given according to the following criteria. 1 point: 18 or more people answered "good" above 2 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "Good" 4 points: 9 or fewer people answered "good"

[0108] Evaluation point 4: Heat sealability of packaging base material (appearance, operability) The better the finish of the heat seal for sealing the packaging substrate, the higher the score. Depending on the degree of stiffness, the strength of the heat seal joint may be insufficient, or the packaging substrate may shrink or twist. In this example, specifically, a sensory evaluation was performed by 20 monitors, who selected "good" or "bad" for the heat sealability of the packaging substrate. Scoring was performed according to the following criteria. 1 point: 18 or more people answered "good" above 2 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "Good" 4 points: 9 or fewer people answered "good"

[0109] Evaluation point 5: Wrinkles and folds in tissue paper (cosmetic properties) The less wrinkles or folds there are in the tissue paper wrapped in the wrapping base material, the higher the score. In this example, specifically, a sensory evaluation was conducted by 20 monitors, who selected "good" or "bad" for the wrinkles and folds in the tissue paper. The scores were given according to the following criteria. 1 point: 18 or more people answered "good" above 2 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "Good" 4 points: 9 or fewer people answered "good" 5 points: 6 or fewer people answered "good"

[0110] (Packaged item) As the packaged items, several types of tissue paper (tissue paper not impregnated with lotion-based liquid medicine) with different basis weight, paper thickness, and specific volume were used as thin paper, and a two-ply tissue paper laminate was produced and used. The measurement and calculation results of the basis weight (per ply), paper thickness, and specific volume of each of the several types of tissue paper (in other words, each of the tissue papers of the examples and comparative examples) are shown in Tables 1 to 3.

[0111] The number of 2-ply tissue paper sets constituting the tissue paper laminate as the packaged item ranges from 60 sets to 166 sets, and the height of the tissue paper laminate ranges from 22 mm to 60 mm, the longitudinal dimension D ranges from 130 mm to 155 mm, the transverse dimension ranges from 95 mm to 115 mm, and the base area is 14.4 cm 2 From 17.1cm 2 The weight ranges from 54g to 149g and the density is 0.060g / cm 3 from 0.32 g / cm 3The range is up to.

[0112] (Packaging base material) As the packaging substrate, several kinds of film substrates (specifically, tube-type films) with different basis weights and thicknesses were used. The measurement results of the thickness, basis weight, and bending resistance in the MD direction of each of the several kinds of film substrates (in other words, each of the film substrates of the examples and comparative examples) are as shown in Tables 1 to 3.

[0113] Regarding the film substrate as the packaging substrate, a single-layer structure and a multi-layer structure were used.

[0114] The gusset as a package has a fold width ranging from 8 mm to 55 mm, a dimension C between the sealed portions ranging from 160 mm to 208 mm, and a difference between the dimension C between the sealed portions and the longitudinal dimension D of the laminate (i.e., CD) ranging from 5 mm to 71 mm.

[0115] For each of Examples 1 to 17 and Comparative Examples 1 to 9, the physical properties, specifications, and specifications of the tissue paper constituting the packaged items, the physical properties, specifications, and specifications of the tubular film as the packaging base material, the specifications and specifications of the packages, and the evaluation results are shown in Tables 1 to 3.

[0116] [Table 1]

[0117] [Table 2]

[0118] [Table 3]

[0119] [Table 4]

[0120] From the results shown in Tables 1 to 3, it was confirmed that none of the packages of Examples 1 to 17 received a score of 4 or 5 (i.e., failure) in any of the five evaluation criteria, and were good or excellent in terms of package shape, package tightness, ease of folding the gusset, heat sealability of the packaging base material, and wrinkles and folds in the tissue paper.

[0121] In contrast, it was confirmed that all of the packages of Comparative Examples 1 to 9 received at least one score of 4 or 5 (ie, failure) in each of the five evaluation criteria.

[0122] From the results shown in Tables 1 to 3, it was confirmed that by forming packages as in Examples 1 to 17, particularly good packages according to the present invention could be obtained.

[0123] (Action and effect) According to the packaging body 1 according to the embodiment, it is possible to improve the shape, operability, and cosmetic properties.

[0124] The above describes an embodiment of the present invention, but the specific configuration of the present invention is not limited to the above embodiment, and the present invention also includes embodiments in which modifications and changes are made to the above embodiment without departing from the gist of the present invention. [Explanation of symbols]

[0125] 1 package 10 Packaging base material 11 Thin paper laminate (packaged item) 12. The Gazette 13 Seal part 14 Tissue Paper 16 Insertion port

Claims

1. A packaging body in which the packaged item is covered with a packaging base material, The packaging substrate is a tube-type film, The packaged item is a laminate of tissue paper that is not impregnated with a lotion-based medicinal solution, The laminate is gusset-wrapped by the tubular film, The bending resistance in the MD direction of the tubular film is 2 [mN / 10 sheets] or more and 25 [mN / 10 sheets] or less, The height of the laminate is 20 mm or more and 60 mm or less, The density of the laminate is 0.080 g / cm ３ 0.30g / cm or more ３ is as follows: A seal portion is formed at each of both end portions in the MD direction of the tubular film, The difference between the dimension between the sealed portions and the longitudinal dimension of the laminate is 10 mm or more and 60 mm or less. A package comprising:

2. The gusset fold width in the gusset packaging is 10 mm or more and 50 mm or less.

2. The package according to claim 1.

3. The dimension between the seal portions is 125 mm or more and 210 mm or less.

2. The package according to claim 1.

4. The tubular film has a multi-layer structure.

2. The package according to claim 1.

5. The tubular film has a basis weight of 32 g / m ２ 90g / m or more ２ Below is the 2. The package according to claim 1.

6. The thickness of the tubular film is 35 μm or more and 100 μm or less.

2. The package according to claim 1.

7. The longitudinal dimension of the laminate is 110 mm or more and 180 mm or less.

2. The package according to claim 1.

8. The basis weight of each ply of the tissue paper is 9.5 g / m ２ 17.5g / m or more ２ Below is the 2. The package according to claim 1.

9. The thickness of the thin paper is 0.5 [mm / 10 sheets] or more and 1.1 [mm / 10 sheets] or less, 2. The package according to claim 1.

10. The specific volume of the tissue paper is 4.0 cm ３ / g or more 8.5cm ３ / g or less, 2. The package according to claim 1.

11. The number of sets of the thin paper constituting the laminate is 70 sets or more and 150 sets or less, 2. The package according to claim 1.

12. The tissue paper is V-folded.

2. The package according to claim 1.

13. The ash content of the packaging base material is 1.5% or more and 12% or less; 2. The package according to claim 1.

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