Lotion tissue paper package

The packaging solution for lotion tissue paper using a tube-shaped film with a pear-form polyethylene outermost layer and a gusseted laminate with specific tensile strength and bonding ratio addresses the challenges of laminate flipping, perforation opening, and portability, achieving stable and convenient packaging.

JP2025072067APending Publication Date: 2025-05-09NIPPON PAPER CRECIA CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
JP2023182571
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-24
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

Existing lotion tissue paper packaging using tube-shaped films with pear-form polyethylene as the outermost layer faces challenges such as defective products due to the laminate flipping during packaging, difficulty in opening the perforations without unintentionally opening or tearing them, and poor portability due to unstable packaging.

Method used

The packaging solution involves a tube-shaped film with a pear-form polyethylene outermost layer, a gusseted laminate with a fixed height, and specific tensile strength and bonding ratio of the perforations to prevent flipping and ensure easy, controlled opening of the perforations.

Benefits of technology

This solution effectively prevents the laminate from flipping during packaging, allows for easy opening of the perforations in a single line, and ensures the packaging is not too large or too small for convenient portability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025072067000001_ABST
    Figure 2025072067000001_ABST
Patent Text Reader

Abstract

To provide a lotion tissue paper package in which a laminate is hardly turned up when packaged, the perforation of one-line form is easy to open, the perforation does not open unintentionally and the perforation does not expand due to excessive cutting when being opened.SOLUTION: Provided is a lotion tissue paper package in which a lotion tissue laminate is covered with a packaging base material of tubular film having a layer of satin polyethylene film as the outermost layer, the lotion tissue laminate is sealed with a seal part, and the packaging base material has one-line perforation to form a take-out port for the lotion tissue paper. A height of the lotion tissue laminate is 40 mm to 100 mm, a packaging form using the packaging base material is gusset packaging, and tensile strength of the packaging base material at the perforation is 3 N / 50 mm to 32 N / 50 mm.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present invention relates to a lotion tissue paper package. [Background technology]

[0002] Thin paper such as tissues are usually sold in a packaged form in which multiple sheets are stacked together.

[0003] Such tissue paper sales packages include box-shaped cartons made of rigid paper, as well as soft packs made of soft paper or plastic film, which are convenient to carry.

[0004] Caramel wrapping and pillow wrapping are commonly used packaging formats for tissue paper soft packs. Caramel packaging has a good shape (appearance) of the package and is tightly wrapped, so that when opening the perforation at the opening of the package, the package can be held firmly in the hand, making it easy to open the perforation.

[0005] On the other hand, caramel packaging has a good shape, but it is difficult to package. Specifically, if the height of the tissue paper stack is not consistent to a certain extent, the heat seal during packaging is not stable. Therefore, the height of the stack differs between the top and bottom of the original roll, which often leads to defective products being produced during packaging depending on the original roll.

[0006] In addition, while the pillow packaging is easier to package than the caramel packaging, the shape of the package is inferior.

[0007] For example, Patent Document 1 discloses a sheet package for tissue paper using caramel packaging, which includes a sheet laminate in which multiple moisture retaining sheets are laminated, and a packaging bag for packaging the sheet laminate, and the sheet laminate is stored in the packaging bag in a state where it is compressed in the stacking direction at a compression rate of 50% to 80%. It also describes that the sheet laminate is caramel packaged.

[0008] On the other hand, as an example of a packaging body for tissue paper using pillow packaging, Patent Document 2 discloses a sheet packaging body having a pillow packaging bag that contains multiple stacked sheets and has a pair of sealed portions at both ends in the longitudinal direction, and an outlet formed on the top surface of the pillow packaging bag and extending in the longitudinal direction of the pillow packaging bag, wherein the pillow packaging bag has a paper layer containing a paper component and a resin layer containing a thermoplastic resin provided on at least one side of the paper layer, the ratio of the paper component being 50% or more, and when the sheet has one ply, the length of the outlet is 80% or more and 100% or less of the distance between the pair of sealed portions in the longitudinal direction of the top surface, and when the sheet has two or more plies, the length of the outlet is 70% or more and 90% or less of the distance between the pair of sealed portions in the longitudinal direction of the top surface. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent Publication No. 2021-113085 [Patent Document 2] JP 2022-115638 A Summary of the Invention [Problem to be solved by the invention]

[0010] When a tubular film is used as the packaging base material of a package, the shape of the package is good, and therefore the package is easy to open when opening the perforation at the opening. However, when the tissue laminate is a soft lotion tissue, the upper or lower part of the laminate may come into contact with the film when the laminate is inserted into the tubular film, causing the laminate to turn over and become a defective product.

[0011] For this reason, it is necessary to use a film whose circumference is larger than the circumference of the laminate within a certain range. However, if this is done, when opening the perforation at the access port of the package, the package will not be tight enough and it will be difficult to hold the package firmly in your hand, making it difficult to open the perforation.

[0012] In this case, lowering the bond rate of the perforations makes it easier to open the perforations at the opening. However, when using a tubular film as the packaging base material, the film needs to be unfolded when inserting the laminate into the film during packaging, and this can cause the perforations to unfold unintentionally, resulting in defective products.

[0013] Furthermore, when a matte polyethylene film is used for the outermost layer of the film (the surface that comes into contact with the hand), while it gives a luxurious feel, the film is smooth and slippery, and since the tissue inside is lotion tissue, the shape of the package is unstable, making it even more difficult to open the perforations. Also, if you try to open the perforation using too much force, it will tear (break) at both ends, making the opening too large and difficult to use (prone to drop back).

[0014] The present invention has been made in view of the above circumstances, and has an object to provide a lotion tissue paper package in which lotion tissue paper is gusset-packaged with a tube-type film using a matte-finished polyethylene film as the outermost layer, and the laminate has a certain range of height for ease of carrying, in which the laminate is unlikely to turn over during packaging, the single-line perforation is easy to open, and the perforation does not open unintentionally or spread too far when opened. [Means for solving the problem]

[0015] The inventors have conducted extensive research and found that in a lotion tissue paper package in which a lotion tissue laminate having lotion tissue paper laminated thereon is covered with a packaging substrate of a tube-type film having at least a layer of matte polyethylene film as the outermost layer, the lotion tissue laminate is sealed with a seal portion, and the packaging substrate has a single line perforation for forming an opening for taking out the lotion tissue paper, by specifying the height of the lotion tissue laminate, making the packaging form by the packaging substrate a gusset packaging, and further specifying the tensile strength of the packaging substrate at the perforation, it is possible to obtain a lotion tissue paper package in which the laminate is unlikely to turn over during packaging, the single line perforation is easy to open, and the perforation is not unintentionally opened or the perforation is not cut too much when opened, thereby solving the above problems and completing the present invention. That is, the present invention provides the following.

[0016] (1) A first aspect of the present invention is a lotion tissue paper package in which a lotion tissue laminate having lotion tissue paper laminated thereon is covered with a packaging base material of a tube-type film having at least a layer of matte polyethylene film as the outermost layer, and the lotion tissue laminate is sealed with a seal portion, and the packaging base material has a single line perforation for forming an opening for taking out the lotion tissue paper, wherein the height of the lotion tissue laminate is 40 mm or more and 100 mm or less, the packaging form of the packaging base material is gusset packaging, and the tensile strength of the packaging base material at the perforation is 3 N / 50 mm or more and 32 N / 50 mm or less.

[0017] (2) A second aspect of the present invention is the lotion tissue paper package described in (1), characterized in that the bond rate of the perforations is 6% or more and 60% or less.

[0018] (3) A third aspect of the present invention is the lotion tissue paper package according to (1), characterized in that (perimeter of the packaging base material / perimeter of the lotion tissue laminate)×100(%) is 101% or more and 113% or less.

[0019] (4) A fourth aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the packaging base material has a layer of milky white polyethylene film as the innermost layer.

[0020] (5) A fifth aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the ash content of the packaging base material is 1.5% or more and 12% or less.

[0021] (6) The sixth aspect of the present invention is the lotion tissue paper package according to (5), characterized in that the titanium oxide content in the ash of the packaging base material is 50% or more.

[0022] (7) A seventh aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the thickness of the packaging base material is 35 μm or more and 100 μm or less.

[0023] (8) The eighth aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the tensile strength of the packaging base material in the MD direction is 10 N or more and 32 N or less.

[0024] (9) A ninth aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the tear strength in the MD direction of the packaging base material is 5N or more and 16N or less.

[0025] (10) The tenth aspect of the present invention is the lotion paper tissue package according to (1), characterized in that in the lotion paper tissue laminate, the lotion paper tissues are V-folded and laminated.

[0026] (11) An eleventh aspect of the present invention is the lotion paper tissue package according to (1), characterized in that the number of sets of the lotion paper tissues included in the lotion tissue laminate is 160 sets or more and 320 sets or less.

[0027] (12) The twelfth aspect of the present invention is the lotion tissue paper package according to (1), characterized in that the lotion content in the lotion tissue paper is 10% or more and 22% or less.

[0028] (13) The thirteenth aspect of the present invention is the lotion tissue paper package according to (1), wherein the lotion content per ply in the lotion tissue paper is 1.8 g / m 2 More than 3.2g / m 2 It is characterized in that:

[0029] (14) A fourteenth aspect of the present invention is the lotion paper tissue package according to (1), characterized in that the lotion paper tissue has a tensile strength of 2.3 N / 25 mm or more and 4.0 N / 25 mm or less in the direction of pulling out from the outlet.

[0030] (15) The fifteenth aspect of the present invention is the lotion paper tissue package according to (1), characterized in that the tensile strength of the lotion paper tissue in a direction perpendicular to the direction of pulling out from the outlet is 0.8 N / 25 mm or more and 1.5 N / 25 mm or less. Effect of the Invention

[0031] According to the present invention, it is possible to provide a lotion tissue paper package in which lotion tissue paper is gusset-packaged with a tube-shaped film using a matte polyethylene film as the outermost layer and the laminate height is within a certain range for ease of carrying, in which the laminate is unlikely to turn over during packaging, the single-line perforation is easy to open, and the perforation is not unintentionally opened or the perforation is not cut too far when opened, causing it to spread. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is a perspective view showing an example of a lotion tissue paper package and a lotion tissue laminate of the present invention. [Diagram 2] FIG. 2 is a perspective view showing a process of opening the perforation of the lotion paper tissue package of the present invention and removing the lotion paper tissue from the opening formed therein. [Diagram 3] FIG. 1 is a perspective view showing an example of a lotion tissue laminate packaged in the lotion tissue paper package of the present invention. [Figure 4] FIG. 2 is a perspective view showing an example of gusset packaging in the lotion tissue paper package of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, the form for carrying out the present invention (hereinafter, the embodiment) will be described in detail with reference to the drawings. However, these are presented for the purpose of illustration only and are not intended to limit the present invention. In the specification, the MD direction and the CD direction respectively refer to the production line direction (conveyance direction) and the direction perpendicular to the production line direction during the production of the lotion tissue paper package.

[0034] <Lotion tissue paper packaging> FIG. 1 is a perspective view showing an example of a lotion tissue paper package (hereinafter, also simply referred to as a "package") 1 and a lotion tissue laminate 11 of the present invention. In the package 1 of the present invention, a lotion tissue laminate 11 (hereinafter, also simply referred to as a "laminate") in which lotion tissue paper 21 is laminated is covered with a packaging substrate 10 of a tube-type film having at least a layer of a matte polyethylene film as the outermost layer, and the lotion tissue laminate 11 is sealed with a seal part 12. The seal part 12 is preferably provided at the end where the packaging substrates 10 overlap. In this case, as shown in FIG. 1, the seal part 12 is preferably formed in a substantially straight line at a position about 10 mm from both ends of the package 1, and each seal part 12 is preferably formed so that they are substantially parallel to each other, but they may be formed at other positions as long as the sealability of the package 1 (adhesiveness of the seal part 12) can be ensured.

[0035] Furthermore, the package 1 has an opening 14 for taking out the lotion paper tissues 21. The opening 14 is formed by cutting the perforation 13 in the packaging base material 10, which has a single line for forming the opening 14 for the lotion paper tissues 21, and opening the package at the time of use. As shown in Fig. 2, the lotion paper tissues 21 are successively pulled out (taken out) from the opening 14, so that the required number of lotion paper tissues 21 can be obtained. The perforation 13 is provided on the surface of the packaging substrate 10 covering the upper part of the laminate 11 so as to be approximately parallel to one side of the lotion tissue paper 21. It is also preferable that the perforation 13 is provided so as to be disposed on the center part of the laminate 11. The lower limit of the overall length of the perforation 13 is preferably 60 mm or more, more preferably 70 mm or more, and even more preferably 80 mm or more. The upper limit is preferably 180 mm or less, more preferably 150 mm or less, and even more preferably 120 mm or less. It is preferable that the length direction of the single line perforation 13 is parallel to the MD direction of the packaging substrate 10.

[0036] The length of the joint of the perforation 13 is preferably 0.2 mm or more and 3.0 mm or less. If the length is less than 0.2 mm, the perforation 13 will open during packaging with the packaging base material 10. If the length exceeds 3.0 mm, the perforation 13 will be difficult to open. The length of the joint of the perforation 13 is more preferably 0.3 mm or more, and even more preferably 0.5 mm or more, and more preferably 2.0 mm or less, and even more preferably 1.0 mm or less.

[0037] The length of the cut line of the perforation 13 is preferably 0.5 mm or more and 4.5 mm or less. If the length is less than 0.5 mm, the perforation 13 is difficult to open. If the length exceeds 4.5 mm, the perforation 13 will open during packaging with the packaging base material 10. The length of the cut line of the perforation 13 is more preferably 0.7 mm or more, and even more preferably 1.0 mm or more, and more preferably 3.5 mm or less, and even more preferably 2.5 mm or less.

[0038] Furthermore, the bond rate of the perforation 13 (the rate of the joint of the perforation 13) is preferably 6% or more and 60% or less. If the bond rate is less than 6%, the perforation 13 will open during packaging with the packaging base material 10. If the bond rate exceeds 60%, the perforation 13 will be difficult to open. The bond rate of the perforation 13 is preferably 10% or more, more preferably 20% or more, and more preferably 45% or less, and more preferably 35% or less. The length of the joint and the length of the cut line of the perforation 13 are measured with a microscope. The bond rate of the perforation 13 (the rate of the connected portion of the perforation 13) is determined as follows. Bond rate of perforation 13 (%) = length of joint of perforation 13 / (length of joint of perforation 13 + length of cut line of perforation 13) x 100

[0039] (Packaging base material) The packaging substrate 10 is a tubular film having at least a layer of textured polyethylene film as the outermost layer. The packaging substrate 10 preferably does not contain paper, and preferably has printing on it. The values ​​of basis weight and ash content described below include the values ​​of printing ink. The tubular film is a film obtained by forming a sheet-like film into a cylindrical shape like a tube.

[0040] (tube film) The film constituting the tubular film has at least a layer of textured polyethylene film as the outermost layer. If the material of the outermost layer is other than textured polyethylene film, the feel of the film will be inferior. The tubular film may be formed of a single layer or multiple layers, but is preferably formed of multiple layers. If the tubular film is a single layer, it will have poor strength and the perforations 13 will tear (cut) from both ends. For layers other than the outermost layer, the film material can be any plastic (thermoplastic resin) film used for packaging ordinary paper products, and may be surface-treated, but from the viewpoints of aesthetics and slip resistance, a matte polyethylene film is preferable. Examples of the plastic film material include conventionally known thermoplastic resins such as polyolefin (polyethylene, polypropylene, etc.), polyester (PET, etc.), polyamide (nylon, etc.), polycarbonate, polystyrene, polyvinyl chloride, etc., and polyethylene is preferable.

[0041] Specifically, when the tubular film is formed of multiple layers, it is preferable that the material of the film in the outermost layer of the film substrate is a matte polyethylene film, and the material of the film in the innermost layer is a milky polyethylene film. If the innermost layer is made of a material other than a milky polyethylene film, the upper and lower parts of the laminate 11 are easily turned up during packaging.

[0042] The method for finishing the textured polyethylene film, which is the outermost layer of the tubular film, is not particularly limited, and may be a conventionally known method, a method of pressing the surface of the tubular film against an embossing roll or a matte roll to give it unevenness, or a method of giving it unevenness by sandblasting. These methods may be performed during the molding of the tubular film, but it is preferable to perform the method on a single layer of polyethylene to obtain a textured polyethylene film, which is then laminated with a milky white polyethylene film or the like, which is the innermost layer. 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 the surface finishing as described above. In addition, it is preferable that the tube-type film is made into a multi-layer film by extrusion laminating the outermost matte film and the innermost milky film. By laminating the film into multiple layers, even if a single-line perforation 13 is provided, the perforation 13 is less likely to tear (cut) at both ends.

[0043] Furthermore, the packaging substrate 10 of the present invention may have other layers in addition to the tube-type film layer. 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 that contacts the lotion tissue laminate 11 or on the surface that contacts the outside air. Note that the layers described above are not related to the number of layers of the film. It is preferable that the printed layer is provided between the outermost layer of the matte polyethylene film and the innermost layer of the milky white polyethylene film. By doing so, the lotion tissue laminate 11 is less likely to turn over during packaging while maintaining the good tactile feel of the film.

[0044] The thickness of the packaging base material 10 of the present invention is preferably 35 μm or more and 100 μm or less. If the thickness is less than 35 μm, the perforation 13 will open during packaging. If the thickness exceeds 100 μm, the perforation 13 will be difficult to open. The lower limit of the thickness of the packaging substrate 10 is more preferably 50 μm or more, and even more preferably 60 μm or more. The upper limit is 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.

[0045] The circumference of the packaging base material 10 is preferably 320 m or more and 440 m or less. If the circumference is less than 320 m, the upper and lower parts of the laminate 11 are likely to turn over during packaging. If the circumference exceeds 440 m, the packaging body 1 is not tight enough, and the perforation 13 is difficult to open. The lower limit of the circumference of the packaging substrate 10 is more preferably 340 m or more, and even more preferably 350 m or more. The upper limit is more preferably 430 m or less, and even more preferably 410 m or less. The circumference of the packaging substrate 10 can be measured by cutting the packaging substrate 10 and using a ruler. The circumference of the packaging substrate 10 is measured in the CD direction of the film.

[0046] The ash content of the packaging base material 10 is preferably 1.5% or more and 12% or less. If the ash content is less than 1.5%, the upper and lower parts of the laminate 11 will turn over during packaging. If the ash content exceeds 12%, the strength of the packaging base material 10 will be weakened, and the perforations 13 will open during packaging. The lower limit of the ash content of the packaging substrate 10 is more preferably 2.0% or more, and even more preferably 2.5% or more. The upper limit is more preferably 10% or less, and even more preferably 8.0% or less. 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 is calculated using the following formula, but the bone dry mass of the test piece is not measured, and the mass of the test piece of the packaging substrate 10 when conditioned at 23°C and 50% humidity is regarded as the bone dry mass. Ash content (%) = mass of residue (g) ÷ bone dry mass of test piece (g) × 100

[0047] Furthermore, the content of titanium oxide in the ash of the packaging substrate 10 is preferably 50% or more. If the content of titanium oxide is less than 50%, the upper and lower parts of the laminate 11 will turn over during packaging. The content of titanium oxide in the ash of the packaging substrate 10 is more preferably 55% or more, and even more preferably 60% or more. The content of titanium oxide can be measured by elemental analysis.

[0048] The tensile strength of the packaging base material 10 in the MD direction is preferably 10 N or more and 32 N or less, and the tensile strength in the CD direction is preferably 8 N or more and 25 N or less. If the tensile strength in the MD direction is less than 10 N or the tensile strength in the CD direction is less than 8 N, the perforations 13 will open during packaging. If the tensile strength in the MD direction exceeds 32 N or the tensile strength in the CD direction exceeds 25 N, the perforations 13 will be difficult to open. The lower limit of the tensile strength in the MD direction of the packaging substrate 10 is more preferably 15 N or more, and even more preferably 18 N or more. The upper limit is more preferably 29 N or less, and even more preferably 26 N or less. The lower limit of the tensile strength in the CD direction of the packaging substrate 10 is more preferably 12 N or more, and even more preferably 14 N or more. The upper limit is more preferably 22 N or less, and even more preferably 20 N or less. The tensile strength in each direction of the packaging substrate 10 is measured in accordance with JIS K 7127, and the width of the test piece is 10 mm.

[0049] The tear strength in the MD direction of the packaging substrate 10 is preferably 5 N to 16 N, and the tear strength in the CD direction is preferably 7 N to 22 N. If the tear strength in the MD direction is less than 5 N or the tear strength in the CD direction is less than 7 N, the perforation 13 will open during packaging. If the tear strength in the MD direction exceeds 16 N or the tear strength in the CD direction exceeds 22 N, the perforation 13 will be difficult to open. The lower limit of the tear strength in the MD direction of the packaging substrate 10 is more preferably 7 N or more, and even more preferably 9 N or more. The upper limit is more preferably 14 N or less, and even more preferably 12 N or less. The lower limit of the tear strength in the CD direction of the packaging substrate 10 is more preferably 10 N or more, and even more preferably 12 N or more. The upper limit is more preferably 19 N or less, and even more preferably 17 N or less. The tear strength in each direction of the packaging substrate 10 is measured in accordance with JIS K 7128-1.

[0050] The tensile strength of the packaging base material 10 at the perforation 13 is 3 N / 50 mm or more and 32 N / 50 mm or less. If the tensile strength at the perforation 13 is less than 3 N / 50 mm, the perforation 13 will open during packaging. If the tensile strength at the perforation 13 exceeds 32 N / 50 mm, the perforation 13 will be difficult to open. The lower limit of the tensile strength of the packaging substrate 10 at the perforation 13 is preferably 5 N / 50 mm or more, and more preferably 8 N / 50 mm or more. The upper limit is preferably 23 N / 50 mm or less, and more preferably 16 N / 50 mm or less. The tensile strength of the packaging substrate 10 at the perforation 13 is measured in accordance with JIS P 8113, and the pulling speed is 300 mm / min.

[0051] (Lotion tissue paper) 3 is a perspective view showing an example of a lotion tissue laminate 11 packaged in the packaging body 1 of the present invention. The lotion tissue paper 21 and the lotion tissue laminate 11 will be described in detail below.

[0052] The lotion paper tissue 21 included in the lotion tissue laminate 11 is made by impregnating a medical solution (lotion) into thin paper. The lotion paper tissue 21 may be one ply or two ply, but is preferably two ply. The lotion content of the lotion paper tissue 21 is preferably 10% or more and 22% or less. If the lotion content is less than 10%, the softness required for lotion tissue is inferior. If the lotion content is more than 22%, the upper and lower parts of the laminate 11 are likely to curl up. The lower limit of the lotion content in the lotion paper tissue 21 is more preferably 12% or more, and even more preferably 14% or more. The upper limit is more preferably 19% or less, and even more preferably 17% or less. The lotion liquid preferably contains glycerin and silicone, and the silicone is more preferably amino-modified silicone. When the lotion liquid contains the above-mentioned compounds, the lotion-tissue laminate 11 becomes smooth and the laminate 11 is less likely to turn over during packaging.

[0053] The lotion content per ply of lotion tissue paper 21 is 1.8 g / m 2 More than 3.2g / m 2 The lotion content per ply is preferably 1.8 g / m or less. 2 If the lotion content per ply is less than 3.2 g / m, the softness of the tissue is inferior. 2 If the thickness exceeds this range, the upper and lower parts of the laminate 11 are likely to be turned up. The lower limit of the lotion content per ply in the lotion tissue paper 21 is 2.1 g / m 2 More preferably, it is 2.4 g / m or more. 2 The upper limit is preferably 3.0 g / m or more. 2 More preferably, it is 2.7 g / m or less. 2 It is more preferable that the lotion content in the lotion tissue paper 21 and the lotion content per ply are measured as follows. 5 g of lotion tissue paper 21 is collected and dried in a dryer (105°C) for 120 minutes, then cooled in a desiccator for 30 minutes, and the mass is measured. The measured mass at this time is designated as M1. Next, Soxhlet extraction is performed for 4 hours using the lotion tissue paper 21 whose mass has been measured and 150 ml of an extraction solvent (acetone:ethanol = 1:1). The obtained extract is heated and concentrated in a hot water bath, dried in a dryer (105°C) for 90 minutes, and then cooled in a desiccator for 30 minutes, and the mass is measured. The measured mass at this time is designated as M2. Then, using the two measured masses M1 and M2 obtained, M2 / M1 x 100 (%) is determined as the chemical solution content (lotion content [%]). Also, basis weight per ply x lotion content = chemical solution content (lotion content per ply) (g / m 2 )

[0054] The basis weight per ply of lotion tissue paper 21 is 12 g / m 2 More than 20g / m 2 It is preferable that the basis weight is 12 g / m or less. 2 If the basis weight is less than 20 g / m, the upper and lower parts of the laminate 11 are likely to be turned up. 2 If it exceeds this, the softness will be inferior to that required for lotion tissue. The lower limit of the basis weight per ply of lotion tissue paper 21 is 14 g / m 2 More preferably, it is 16 g / m or more. 2 More preferably, the upper limit is 19 g / m or more. 2 More preferably, it is 18 g / m or less. 2 The basis weight per ply of the lotion tissue paper 21 is measured in accordance with JIS P 8124.

[0055] The thickness of the lotion paper tissue 21 is preferably 0.50 mm / 10 sheets or more and 0.90 mm / 10 sheets or less. If the thickness is less than 0.50 mm / 10 sheets, the upper and lower parts of the laminate 11 tend to turn up. If the thickness is more than 0.90 mm / 10 sheets, the softness required for lotion paper tissue is inferior. The lower limit of the thickness of the lotion paper tissue 21 is preferably 0.55 mm / 10 sheets or more, and more preferably 0.60 mm / 10 sheets or more. The upper limit is preferably 0.82 mm / 10 sheets or less, and more preferably 0.75 mm / 10 sheets or less. The thickness of the lotion paper tissues 21 (10 sheets) is measured using a thickness gauge (a dial thickness gauge "PEACOCK" manufactured by Ozaki Manufacturing Co., Ltd.). The measurement conditions are a measurement load of 3.7 kPa, a gauge diameter of 30 mm, a sample is placed between the gauge and the measuring table, and the gauge is read when the gauge is lowered at a speed of 1 mm or less per second. If the lotion paper tissues 21 are two-ply, five sets of two-ply lotion paper tissues 21 are stacked and measured as 10 sheets, and the thickness of the 10 sheets is calculated. The measurement is also repeated 10 times (measure 10 different places instead of measuring the same place 10 times), and the average of the measurement results is taken as the final paper thickness.

[0056] Furthermore, the specific volume of Lotion Tissue Paper 21 is 3.0 cm 3 / g or more 5.7cm 3 / g or less. 3 If the specific volume is less than 5.7 cm3 / g, the upper and lower parts of the laminate 11 are likely to turn over. 3 If the viscosity exceeds 1 / g, the softness required for lotion tissue is inferior. The lower limit of the specific volume of lotion tissue paper 21 is 3.3 cm 3 / g or more is more preferable, and 3.6 cm 3 The upper limit is preferably 5.2 cm / g or more. 3 / g or less is more preferable, and 3 The specific volume of the lotion paper tissue 21 is calculated by dividing the thickness of the lotion paper tissue 21 by the basis weight, and is expressed as the volume cm per unit g. 3 It is expressed as:

[0057] The tensile strength of the lotion paper tissue 21 in the direction of pulling out from the opening 14 is preferably 2.3 N / 25 mm or more and 4.0 N / 25 mm or less. If the tensile strength is less than 2.3 N / 25 mm, the upper and lower parts of the laminate 11 tend to curl up. If the tensile strength is more than 4.0 N / 25 mm, the softness required for lotion tissue is inferior. The lower limit of the tensile strength of the lotion paper tissue 21 in the direction of pulling out from the outlet 14 is more preferably 2.7 N / 25 mm or more, and even more preferably 3.0 N / 25 mm or more. The upper limit is more preferably 3.6 N / 25 mm or less, and even more preferably 3.5 N / 25 mm or less. The tensile strength is measured in accordance with JIS P 8113, and the pulling speed is 300 mm / min.

[0058] Furthermore, it is preferable that the tensile strength of the lotion paper tissue 21 in the direction perpendicular to the direction of pulling out from the outlet 14 is 0.8 N / 25 mm or more and 1.5 N / 25 mm or less. If the tensile strength is less than 0.8 N / 25 mm, the upper and lower parts of the laminate 11 tend to curl up. If the tensile strength exceeds 1.5 N / 25 mm, the softness required for lotion tissue is inferior. The lower limit of the tensile strength of the lotion paper tissue 21 in the direction perpendicular to the direction of pulling out from the outlet 14 is more preferably 0.9 N / 25 mm or more, and even more preferably 1.0 N / 25 mm or more. The upper limit is more preferably 1.4 N / 25 mm or less, and even more preferably 1.3 N / 25 mm or less. The tensile strength of the lotion paper tissue 21 in the direction of pulling out from the outlet 14 and in the direction perpendicular to the direction of pulling out are measured in accordance with JIS P 8113, and the pulling speed is 300 mm / min.

[0059] (Lotion tissue laminate 11) Although there is no particular limitation on the way the lotion paper tissues 21 included in the lotion tissue laminate 11 are folded, it is preferable that they are folded in a V shape and laminated. By folding in a V shape, the package 1 can be made such that the upper and lower parts of the laminate 11 are less likely to turn over during packaging.

[0060] The height of the lotion tissue laminate 11 is 40 mm or more and 100 mm or less. If the height is less than 40 mm, the number of lotion paper tissues 21 described below is too small, and they will be used up quickly, making it inconvenient to carry. If the height exceeds 100 mm, the package 1 will be too large and inconvenient to carry. The lower limit of the height of the lotion tissue laminate 11 is preferably 52 mm or more, and more preferably 60 mm or more. The upper limit is preferably 90 mm or less, and more preferably 80 mm or less. The height of the lotion tissue laminate 11 can be measured as follows. The packaging base material 10 of the lotion tissue paper package 1 is cut, and the lotion tissue laminate 11 is gently removed. Then, a 30 cm ruler (Shinwa Measurement Co., Ltd., silver straight scale, JIS Class 1, stainless steel, 64 g) is placed at the center of the short side direction of the laminate 11 along the long side direction of the laminate 11, and the height of both ends of the laminate 11 is measured. Similarly, a 30 cm metal ruler is placed at the center of the long side direction of the laminate 11 along the short side direction of the laminate 11, and the height of both ends of the laminate 11 is measured. These four values ​​are averaged to determine the final height of the laminate 11.

[0061] Furthermore, when the lotion paper tissues 21 are two-ply, the number of sets of the lotion paper tissues 21 included in the lotion tissue laminate 11 is preferably 160 or more and 320 or less. If the number of sets is less than 160, the number of sets of the lotion paper tissues 21 is too small and they will be used up quickly, making it inconvenient to carry. If the number of sets exceeds 320, the package 1 will end up being too large, making it inconvenient to carry. The lower limit of the number of sets of lotion paper tissues 21 included in the lotion tissue laminate 11 is more preferably 200 sets or more, and even more preferably 220 sets or more. The upper limit is more preferably 300 sets or less, and even more preferably 260 sets or less.

[0062] Furthermore, the circumference of the lotion tissue laminate 11 is preferably 300 mm or more and 410 mm or less. If the circumference is less than 300 mm, the number of lotion paper tissues 21 will be too small and will be used up quickly, making it inconvenient to carry. If the circumference exceeds 410 mm, the package 1 will be too large and inconvenient to carry. The lower limit of the circumference of the lotion tissue laminate 11 is more preferably 310 mm or more, and even more preferably 330 mm or more. The upper limit is more preferably 390 mm or less, and even more preferably 380 mm or less. The circumference of the lotion tissue laminate 11 can be measured as follows. The packaging base material 10 of the lotion tissue paper package 1 is cut, and the lotion tissue laminate 11 is gently taken out. A 30 cm ruler (Silver straight scale JIS Class 1, stainless steel, 64 g, manufactured by Shinwa Sokutei Co., Ltd.) is placed at the center of the long side of the laminate 11 along the short side of the laminate 11, and the length of the top surface and the heights of both ends of the laminate 11 are measured. The final circumference of the lotion tissue laminate 11 is determined by adding up the values ​​of the length of the top surface x 2 + the heights of both ends.

[0063] It is preferable that the ratio calculated by (perimeter of packaging base material 10 / perimeter of lotion tissue laminate 11)×100(%) is 101% or more and 113% or less. If the ratio is less than 101%, the upper and lower parts of laminate 11 are likely to turn over during packaging. If the ratio exceeds 113%, the tightness of package 1 is poor, and perforation 13 becomes difficult to open. The lower limit of the ratio calculated by (perimeter of packaging substrate 10 / perimeter of lotion tissue laminate 11)×100(%) is more preferably 103% or more, and even more preferably 105% or more. The upper limit is more preferably 110% or less, and even more preferably 108% or more.

[0064] (packaging format) The packaging form of the packaging body 1 according to the present invention is gusset packaging.

[0065] As shown in Fig. 4, gusset packaging is a packaging format in which the packaged item (laminate 11) is inserted into the inside of a packaging base material 10, which is formed into a cylindrical shape with both ends of the bottom or mouth folded inward to match the length (height) of the bag and sealed at one end with a seal part 12, from an insertion opening 15, and then sealed horizontally by heat sealing or the like, and cut into individual bags at this sealed part. This gusset packaging can be performed using a known device. Alternatively, the laminate 11 may be inserted in a state in which the packaging base material 10 at the insertion opening 15 is turned outward so as not to be rolled inward.

[0066] Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It is clear to those skilled in the art that various modifications or improvements can be made to the above embodiments. In addition, it is clear from the description of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention. EXAMPLES

[0067] The present invention will be described in detail below with reference to examples. However, the present invention is not limited to the examples shown below.

[0068] <Example> (Packaging base material) For example, in Example 3, a film with a multi-layer (three-layer) structure (the outermost layer is a matte polyethylene film, the innermost layer is a milky polyethylene film, and these are bonded by extrusion lamination) was prepared as a film substrate and used as it is as a packaging substrate. The film was provided with printing. The results of measuring the basis weight, thickness, and density of the packaging substrate are shown in Table 1.

[0069] (Lotion tissue paper packaging (gusset packaging)) Packaging was performed using a film with a circumference of 380 mm (CD direction, front width 116 mm, fold width 37 mm each) x pitch 310 mm (MD direction) as the packaging substrate (Example 3). A lotion tissue laminate, in which 240 sets of lotion tissue paper are laminated, was placed in this film as the packaging substrate, and sealed by gusset packaging to obtain a lotion tissue paper package. The paper product was wrapped and packaged in a tube-shaped film (packaging substrate). After the lotion tissue laminate was inserted, the excess in the pitch direction was cut off to produce the package. For the lotion tissue paper package, the circumference A of the packaging base material and the circumference B of the lotion tissue laminate were measured after packaging, and the ratio of A to B (A / B (%)) was calculated by calculating A / B×100 from the measured A and B.

[0070] (Difficulty in tearing perforations when packaging) The 100 lotion tissue paper packages thus produced were evaluated for ease of tearing the perforations during packaging. The evaluation criteria were as follows: 4: The percentage of packages in which the perforation was torn even slightly during packaging was less than 1%. 3: The percentage of packages in which the perforation was torn even slightly during packaging was between 1% and 2%. 2: The percentage of packages in which the perforation was torn even slightly during packaging was between 2% and 5%. 1: The percentage of packages in which the perforation was torn even slightly during packaging was 5% or more.

[0071] (Ease of tearing the perforations when opening the tissue dispenser) Thirty test subjects evaluated the ease of tearing the perforation of the tissue removal opening when opening the lotion tissue paper package thus produced. The evaluation criteria were as follows: 4: More than 28 testers rated the perforations as easy to tear 3: 25 to 27 people rated the perforations as easy to tear 2: 22 to 24 people rated the perforations as easy to tear 1: Fewer than 21 reviewers rated the perforations as easy to tear

[0072] (Easy to carry) The convenience of carrying the lotion tissue paper packages thus produced was evaluated by 30 monitors. The evaluation criteria were as follows: 4: More than 28 testers rated the packaging as being neither too small nor too large and easy to carry. 3: Between 25 and 27 testers rated the package as being neither too small nor too large and easy to carry. 2: 22 to 24 testers rated the package as being neither too small nor too large and easy to carry. 1: Fewer than 21 testers rated the packaging as being neither too small nor too large and easy to carry.

[0073] (Resistance of tissue laminate to curl during packaging) The produced lotion tissue paper packages were evaluated for resistance to curling of the tissue laminate. The evaluation criteria were as follows: 4: The lotion tissue paper hardly turned over during packaging, and packaging went smoothly. 3: The lotion tissue paper was slightly turned over during packaging, but the package was still packaged. 2: The lotion tissue paper was turned over during packaging, but it was not a problem. 1: Many of the lotion tissue papers were peeled off during packaging, making the product inferior.

[0074] (Difficulty in tearing both ends of the perforation) The lotion tissue paper packages thus produced were evaluated by 30 monitors for tear resistance (resistance to tearing) at both ends of the perforation when the perforation was opened. The evaluation criteria were as follows: ○: Three or fewer monitors evaluated that both ends of the perforation were easily torn. ×: Four or more monitors evaluated that both ends of the perforation were easily torn.

[0075] (Texture of packaging substrate) The lotion tissue paper packages thus produced were evaluated by 30 monitors for the feel of the packaging base material when the surface of the package was touched with the hand. The evaluation criteria were as follows: ○: 27 or more monitors rated the packaging base material as smooth and luxurious to the touch and good. ×: The texture of the packaging base material was smooth and luxurious, and 26 or fewer monitors rated it as good.

[0076] (Example 1) to (Example 23), (Comparative Example 1) to (Comparative Example 13) In Examples 1, 2, 4 to 23 and Comparative Examples 1 to 13, packaging substrates having the physical properties shown in Tables 1 to 3 were prepared in the same manner as in Example 3, and lotion tissue paper packages (gusset packaging) were prepared using these in the same manner as in Example 3, and the above-mentioned evaluations were performed.

[0077] [Table 1]

[0078] [Table 2]

[0079] [Table 3]

[0080] As is clear from the results shown in Tables 1 to 3, the packages of Examples 1 to 23 all had perforations that were difficult to tear during packaging, the laminate was difficult to turn over, the perforations were easy to open, the perforations were not too torn when opened, and furthermore, they were easy to carry and had an excellent feel of the packaging base material.In contrast, Comparative Examples 1 to 13 all had inferior perforations and laminate turnover during packaging, ease of opening the perforations when pulling out, difficulty of tearing both ends of the perforations when opening, ease of carrying, and feel of the packaging base material. From the above, according to this embodiment, it has been confirmed that the present invention can provide a lotion tissue paper package in which a lotion tissue paper is gusset-packaged with a tubular film using a matte-finished polyethylene film as the outermost layer and the laminate height is within a certain range for ease of carrying, the laminate is unlikely to turn over during packaging, the single-line perforation is easy to open, and the perforation does not open unintentionally or spread too far when opened. [Explanation of symbols]

[0081] 1 (Lotion tissue paper) packaging 10 Packaging base material 11 (Lotion tissue) Laminated body 12 Seal part 13 Perforation 14. Extraction port 15 Insertion port 21 Lotion Tissue Paper

Claims

1. A lotion paper tissue package, comprising a lotion paper tissue laminate covered with a tube-shaped film packaging substrate having at least a matte polyethylene film layer as an outermost layer, the lotion paper tissue laminate sealed with a seal portion, and the packaging substrate having a single line perforation for forming an opening for taking out the lotion paper tissue, The height of the lotion tissue laminate is 40 mm or more and 100 mm or less, The packaging form of the packaging base material is gusset packaging, A lotion tissue paper package, characterized in that the tensile strength of the packaging base material at the perforation is 3 N / 50 mm or more and 32 N / 50 mm or less.

2. 2. The lotion tissue paper package according to claim 1, wherein the bond rate of the perforations is 6% or more and 60% or less.

3. 2. The lotion tissue paper package according to claim 1, wherein (perimeter of the packaging base material / perimeter of the lotion tissue laminate) x 100 (%) is 101% or more and 113% or less.

4. 2. The lotion tissue paper package according to claim 1, wherein the packaging base material has a layer of a milky white polyethylene film as an innermost layer.

5. 2. The lotion tissue paper package according to claim 1, wherein the ash content of the packaging base material is 1.5% or more and 12% or less.

6. 6. The lotion tissue paper package according to claim 5, wherein the content of titanium oxide contained in the ash of the packaging base material is 50% or more.

7. 2. The lotion tissue paper package according to claim 1, wherein the thickness of the packaging base material is 35 μm or more and 100 μm or less.

8. 2. The lotion tissue paper package according to claim 1, wherein the packaging base material has a tensile strength in the MD direction of 10 N or more and 32 N or less.

9. 2. The lotion tissue paper package according to claim 1, wherein the tear strength of the packaging base material in the MD direction is 5 N or more and 16 N or less.

10. 2. The lotion paper tissue package according to claim 1, wherein in the lotion paper tissue stack, the lotion paper tissues are stacked in a V-folded manner.

11. 2. The lotion paper tissue package according to claim 1, wherein the number of the lotion paper tissues included in the lotion tissue laminate is 160 or more and 320 or less.

12. 2. The lotion tissue paper package according to claim 1, wherein the lotion content in the lotion tissue paper is 10% or more and 22% or less.

13. The lotion content per ply of the lotion tissue paper is 1.8 g / m 2 3.2g / m or more 2 2. The lotion tissue paper package according to claim 1, characterized in that:

14. 2. The lotion paper tissue package according to claim 1, wherein the lotion paper tissue has a tensile strength of 2.3 N / 25 mm or more and 4.0 N / 25 mm or less in a direction in which the lotion paper tissue is pulled out from the outlet.

15. 2. The lotion paper tissue package according to claim 1, wherein the lotion paper tissue has a tensile strength of 0.8 N / 25 mm or more and 1.5 N / 25 mm or less in a direction perpendicular to the direction of pulling out the tissue from the outlet.

Citation Information

Patent Citations

  • Sheet package, sheet set package, method of manufacturing sheet package and method of manufacturing sheet set package

    JP2021113085A

  • Sheet package

    JP2022115638A