JP5812723B2 - Manufacturing method of tissue paper products - Google Patents

Description

  The present invention relates to a method for manufacturing a tissue paper product in which a bundle of a plurality of tissue papers is stored in a storage box, and more particularly to a method for manufacturing a pop-up type tissue paper product.

  In general, many tissue papers widely used in homes and offices are stored in a large number of rectangular storage boxes, also called cartons, and are commercially available.

  Among tissue paper products, a high-grade lotion type product in which tissue paper contained in a storage box is made by adding a chemical solution such as a softener to a base paper called a lotion tissue has been put on the market and has rapidly spread. Yes.

  The above lotion type products are more expensive than general-purpose type products, so users do not replace the lotion-type products with general-purpose type products. It is used only for applications that directly touch the skin, etc., and a general-purpose type product is used for wiping applications such as dust, dust, and spilled food.

  Tissue paper products are used in various situations in daily life and are frequently used. Generally, tissue paper products are always placed in a place where they can be used immediately, such as a dining table, a living table, and an office desk. Therefore, as the tendency of proper use depending on the use of tissue paper products increases as described above, problems such as getting in the way of placing two types of tissue paper products on a limited space such as a dining table have arisen. The significance of further downsizing general-purpose products has increased.

  On the other hand, techniques related to tissue paper products that are compact and have a small space can be found in, for example, Patent Documents 1 to 4 listed below. However, for example, a tissue paper bundle folded in a cube shape similar to a cube shown in Patent Document 1 has an apparent shape difference from the current mainstream rectangular parallelepiped tissue paper product, and is unfamiliar. The spread is not progressing. In addition, a storage box such as a cube type cannot form a sufficiently large outlet at the outlet, so it has a high resistance to pulling out tissue paper and cannot be pulled out smoothly, or it cannot be pulled out. There is a risk of lifting. Further, when the tissue paper bundle is folded in half in the manner of Patent Document 1 and stored in the storage box, the bundle rotates in the storage box, or the bundle is folded and falls in the box when the remaining number decreases. There is a risk that the removal property will deteriorate.

  In addition, the technique of Patent Document 1 is difficult to manufacture with conventional equipment for the process of storing tissue paper bundles in a storage box, due to its unique shape, etc., and is difficult to manufacture at high speed and low cost. .

Patent No. 4094963 JP 2010-6444 JP-A-7-187216 JP 2004-217296 A

  Therefore, the main problem of the present invention is the shape close to the conventional storage box, the size of the tissue paper to be stored is also close to the conventional product, and the size of the storage box can be made compact and the installation area is saved. Another object of the present invention is to provide a manufacturing method capable of producing a tissue paper product at a low cost and at high speed using conventional equipment, which can improve the pop-up property and can easily take out the tissue paper contained until the end.

The present invention and effects obtained by solving the above problems are as follows.
<Invention of Claim 1>
At the interfolder, fold the square tissue paper in half and stack the layers so that the edges of the folded pieces are stacked on top of each other so that the edges of the folded pieces are located on the folded inner surface of the other adjacent tissue paper. Produce a cube of tissue paper on the side,
The tissue paper bundle produced;
With the space extending in the direction along the long side surface provided in the center between the long side surfaces below the bottom side of the tissue paper bundle, the tissue paper is pressed against the center between the long side surfaces of the top surface of the tissue paper bundle. The central portion between the long side surfaces of the bottom surface side of the bundle is bulged into the space so that the long side surfaces of the tissue paper bundle are brought close together, and the central portion between the long side surfaces of the tissue paper bundle becomes convex toward the bottom surface side. Bend like
The deflected tissue paper bundle;
It has a rectangular hexahedron shape having a rectangular top surface and bottom surface, and a long surface and a short surface connecting them, and the distance between the long surfaces is shorter than the distance between the long side surfaces of the tissue paper bundle before bending, and at the center of the top surface. In the storage box in which the outlet extending along the longitudinal direction is formed, the long side surface of the tissue paper bundle faces the inner surface of the long side of the storage box, and the bulged convex portion faces the top surface of the storage box A method for manufacturing tissue paper products, wherein the tissue paper products are stored as described above.

<Invention of Claim 2>
A direction along the longitudinal side surface in the center between the longitudinal side surfaces below the bottom surface side of the tissue paper bundle by providing a concave groove in the conveyance path for conveying the tissue paper bundle and placing the tissue paper bundle across the concave groove. The tissue paper manufacturing method according to claim 1, wherein a space extending in the space is provided.

<Invention of Claim 3>
On the transport path for transporting the tissue paper bundle, the protrusions are provided at intervals in the transport direction, and the tissue paper bundle is bridged between the protrusions so as to be bridged. The manufacturing method of the tissue paper of Claim 1 which provides the space extended in the direction along a longitudinal side surface in the center between side surfaces.

<Invention of Claim 4>
As the end face plane edges that are not folded back the tissue paper bundle aligned, and one end surface of the tissue paper bundle in a state of being deflected, the upper and lower surfaces upside down as and whereas a state opening the shorter side storage box open short and abutted against the hand side, from then on the tissue paper other end face of the storage box and does not face the bundle by pressing the tissue paper bundle of claims 1 to 3 for accommodating push the tissue paper bundle receiving box The manufacturing method of the tissue paper of any one .

<Invention of Claim 5>
The method for manufacturing tissue paper according to claim 4, wherein the tissue paper bundle is pushed into the storage box in a state where the deflection forming rod is pressed against the tissue paper bundle.

<Invention of Claim 6>
The tissue according to claim 3 or 4, wherein the tissue paper bundle is pushed into the storage box while the tissue paper bundle in the bent state and the storage box in a state where the short side surface is opened as an upside down surface are run side by side. Paper manufacturing method.

(Function and effect)
In the manufacturing method of the present invention, the tissue paper bundle is stored in a storage box having a rectangular parallelepiped shape and having an upper surface outlet, so that a tissue paper product having the same appearance as that of a conventional product is obtained, and there is no uncomfortable appearance.

  On the other hand, in the manufacturing method of the present invention, the respective longitudinal side surfaces of the tissue paper bundle are brought close to each other and bent so that the central portion between the longitudinal side surfaces of the tissue paper bundle becomes convex toward the bottom surface side. The tissue paper bundle is achieved by a simple operation in which a space extending in the direction along the longitudinal side surface is provided in the center between the longitudinal side surfaces below the bottom side of the tissue paper bundle and pushed from above with a bending rod. Can be formed while being conveyed at a high speed, and production can be carried out at a higher speed in a simple and cost-effective manner.

  Further, in the manufacturing method of the present invention, the tissue paper bundle is bent in the storage box in which the interval between the longitudinal surfaces is shorter than the interval between the longitudinal side surfaces of the tissue paper bundle before the bending. Is stored so that the bulged convex portion faces the upper surface of the storage box. Therefore, in the manufacture of the present invention, it is possible to manufacture a product having a small bottom area and a small installation area, rather than storing a tissue paper bundle that is not bent as it is. That is, the tissue paper product can be made compact.

  Further, in the manufacturing method of the present invention, after the tissue paper bundle is stored in the storage box, each longitudinal side surface comes into contact with the inner surface of the storage box longitudinal surface in a state where the tissue paper bundle is bent. . In this state, there is no room between the longitudinal side surface of the tissue paper bundle and the inner surface of the storage box longitudinal surface, and the tissue paper bundle cannot be freely moved in the direction across the longitudinal direction in the storage box and is restrained. Therefore, in the tissue paper product manufactured according to the present invention, the tissue paper bundle does not move in the storage box and the bundle does not collapse. In addition, the longitudinal side surface of the tissue paper bundle presses the inner surface of the storage box longitudinal surface by the restoring action to return to the state before the convex portion due to elasticity and weight of the tissue paper bundle itself is bent, and as a result, the longitudinal side surface Is sandwiched between the inner surfaces of the storage box longitudinal surfaces, and the convex shape on the upper surface side of the tissue paper bundle is maintained in the storage box. Moreover, in the production method of the present invention, in the product state, the swollen convex portion of the tissue paper bundle and the outlet formed on the upper surface of the storage box are close to each other, and the tissue paper product produced by the present invention has the above-described configuration. Therefore, it becomes a product that is easy to pull out tissue paper despite being compact.

  On the other hand, in the production method of the present invention, a concave groove is provided in the conveyance path for conveying the tissue paper bundle, and the tissue paper bundle is placed so as to straddle the concave groove, whereby the bottom side of the tissue paper bundle is below the bottom side surface. A space extending in the direction along the longitudinal side surface can be provided in the middle. The tissue paper bundle can be bent while the tissue paper bundle is conveyed, and the productivity is improved. In addition, it is possible to make use of an existing facility called a transport path for tissue paper bundles that is essential for the manufacture of tissue paper products.

  Regarding this point, by providing convex strips at intervals in the transport direction on the transport path for transporting the tissue paper bundle, and placing the tissue paper bundle to be bridged between the convex strips, Even if a space extending in the direction along the long side surface is provided at the center between the long side surfaces on the bottom side, the same effect can be obtained. In particular, when forming a ridge portion on the conveyance path, it is only necessary to install a ridge member on the existing conveyance path, and there is an advantage that the equipment can be improved simply as compared with the formation of the groove.

  On the other hand, if the tissue paper bundle is pushed into the storage box while the deflection forming rod is pressed against the tissue paper bundle, the bundle is prevented from collapsing when the tissue paper bundle is pushed into the storage box. This is desirable because it enables reliable product manufacturing.

  In addition, if the tissue paper bundle is pushed into the storage box while running parallel with the bent paper bundle and the storage box with the short side open, the top and bottom surfaces are reversed. Productivity is improved because the conveyance is not stopped when the paper bundle is stored in the storage box.

  Note that a multi-stand type interfolder capable of high-speed production is suitable as the interfolder for manufacturing the tissue paper bundle of the present invention.

  As described above, according to the present invention, the shape is similar to that of a conventional storage box, the size of tissue paper to be stored is similar to that of a conventional product, and the size of the storage box can be reduced, thereby saving the installation area. Further, there is provided a manufacturing method capable of producing a tissue paper product at low cost and at high speed using conventional equipment, which can improve the pop-up property, and can easily take out the tissue paper contained until the end.

It is a perspective view showing the external appearance of the tissue paper product concerning the manufacturing method of this invention. It is a perspective view explaining the structural example of the tissue paper product concerning the manufacturing method of this invention. It is a figure which shows the manufacture process of the tissue paper bundle | flux concerning this invention by a multi stand type inter folder. It is another figure which shows the manufacturing process of the tissue paper bundle | flux concerning this invention by a multi stand type | system | group interfolder. It is a figure for demonstrating the tissue paper bundle | flux concerning this invention. It is a figure which shows the conveyance process of the tissue paper bundle | flux of this invention. It is a figure for demonstrating the bending of the tissue paper bundle | flux concerning this invention. It is a figure which shows the bending formation process of the tissue paper bundle | flux of this invention. It is a figure which shows the other bending formation process of the tissue paper bundle | flux of this invention. It is a figure for demonstrating accommodation to the storage box of the tissue paper bundle | flux of this invention. It is a figure for demonstrating the example of the storage apparatus to the storage box of the tissue paper bundle | flux of this invention. It is a figure for demonstrating the accommodation state of the tissue paper bundle | flux concerning this invention. It is another figure for demonstrating the accommodation state of the tissue paper bundle | flux concerning this invention. It is a figure for demonstrating the other accommodation state of the tissue paper bundle | flux concerning this invention.

Next, embodiments of the present invention will be described in detail below with reference to the drawings.
As shown in FIGS. 1 and 2, the tissue paper product X1 according to the manufacturing method of the present invention has a tissue paper bundle 10 in which a plurality of tissue papers 1 are folded and layered, and an outlet forming portion 21 on an upper surface 2U. Is stored in the storage box 2 formed, the outlet 25 is formed at the time of use, and when one piece of the tissue paper 1 is taken out from the outlet, a part of one of the lower layers stacked adjacent to each other is obtained. It is configured to be exposed from the outlet. This is a so-called pop-up tissue paper product. In the present invention, the term “one sheet” refers to a unit of tissue paper, which means a set of one ply or two or more plies.

  In the production of the tissue paper product X1 according to the present invention, first, a thin paper having a crepe (also referred to as crepe paper) is made in a paper making facility, and this is wound up to be a primary raw roll (generally called a jumbo roll). ).

  Next, the required number of primary rolls are set in a ply machine, and a primary continuous sheet is fed out from each of the set primary rolls. ) Is produced.

  Here, known papermaking equipment and ply machines can be used, and the papermaking process and secondary raw roll manufacturing process related to them can also be known.

  Next, the secondary web roll is transferred to a folding facility called an interfolder, secondary continuous sheets are fed out from the secondary web roll sequentially, the secondary continuous sheets are folded and sequentially laminated, and cut into tissue paper. A bundle 10 is manufactured. In manufacturing the tissue paper bundle 10 used for tissue paper products, two types of inter-folders, a multi-stand type (multiple type) inter-folder and a rotary type inter-folder, are known, but any of them can be used in the present invention. it can. However, the former multi-stand type interfolder is suitable for manufacturing a general-purpose type product that requires a large amount of production because of its high productivity, and the tissue paper product X1 according to the present invention is also a general-purpose type. Since it is desirable, it is desirable to manufacture the bundle 10 by a multi-stand type interfolder.

  As shown in FIGS. 3 and 4, the multi-stand type interfolder M1 includes a large number of folding mechanism portions 70 each having a folding plate 72 (usually 80 to 120 machines) arranged in the line flow direction. Secondary secondary roll 71 is attached to the secondary original roll support part corresponding to 70, 70 ..., secondary secondary sheet S4a, S4b is unwound from the secondary original roll 71, and it is secondary to folding mechanism part 70. The continuous sheets S4a and S4b are configured to be supplied. A plurality of sets (two sets in the illustrated example) of secondary web rolls 71 that are slit to the same width as the width of the tissue paper 1 are arranged for each folding mechanism section 70, and the secondary web rolls 71 and 71 are simultaneously used as the secondary rolls. When the continuous sheets S4a and S4b are continuously supplied, the secondary continuous sheets S4a and S4b are folded and stacked in each folding mechanism unit 70. Then, the secondary continuous sheets S4a and S4b folded in the folding mechanism unit 70 on the downstream side of the line are sequentially stacked on the secondary continuous sheets S4a and S4b folded in the folding mechanism unit 70 on the upstream side of the line, A continuous laminated tissue paper bundle 11 in which the required number of sheets is laminated at the most downstream side is formed. The tissue paper bundle 10 is formed by cutting the continuous laminated tissue paper bundle 11 with a cutter at an appropriate interval.

  As can be understood from FIG. 5, in the tissue paper bundle 10 manufactured by the interfolder as described above, the square tissue paper 1 is substantially folded in two, and the edges 1e of the folded pieces are adjacent vertically. The other tissue papers 1 are stacked while being alternately stacked so as to be positioned on the folded inner surface of the other tissue paper 1, and have a rectangular parallelepiped shape as a whole with the surface on which the folded edges E are arranged as the long side surface 10 </ b> L. The term “substantially” as used herein means that a slight fold of the edge formed in manufacturing is allowed.

  In the tissue paper bundle 10 of the present laminated structure, when one folded piece positioned at the top is pulled upward, the other folded piece adjacent immediately below it is pulled upward by friction and lifted. In the present invention, the number of layers in the tissue paper bundle is not limited. However, if a typical number of layers of this type of product is exemplified, it is 120 to 240 sets, and the present invention may be within this range. it can.

  After the tissue paper bundle 10 is manufactured in the interfolder such as the multi-stand type interfolder as described above, the tissue paper bundle 10 is conveyed by a conveyor or the like so as to shift to the storing step of storing the tissue paper bundle 10 in the storage box 2. Here, as can be understood from FIG. 3, the tissue paper bundle 10 discharged from the interfolder has the end surface 10 </ b> S in the traveling direction. In the method for manufacturing the tissue paper product X1 of the present embodiment, first, the transporting direction of the tissue paper bundle 10 is changed by 90 degrees so as to be in the direction of the longitudinal side surface 10L. The conveyance direction of the tissue paper bundle 10 can be changed by a known carton loader M2 shown in FIG.

  After the conveyance direction is changed and the long side surface 10L is conveyed in the traveling direction, as shown in FIG. 7, in the middle of the conveyance, the tissue paper bundle 10 is brought close to each long side surface so that the central portion between the long side surfaces is It bends in the state which becomes convex toward the bottom face 10b side in the said mounting state. At this time, the distance between the longitudinal sides of the tissue paper bundle 10 in the bent state (the width of the tissue paper bundle 10 in the bent state) L5 should be the distance between the longitudinal surfaces of the storage box 2 (the length of the short edge). It is made to be slightly shorter than (denoted by symbol L2 in FIG. 1).

  As shown in FIG. 8, the tissue paper bundle 10 is bent by forming a groove 51 extending in a direction perpendicular to the traveling direction on a conveyance path 50 that constitutes conveyance means such as a conveyor. Is placed so as to straddle the concave groove 51, and a space extending along the longitudinal direction of the tissue paper bundle 10 is provided in the center between the longitudinal side surfaces of the tissue paper bundle in the transport path placement state. In such a state, the deflection forming rod 52 is pressed from the upper side of the tissue paper bundle 10 to the center between the longitudinal side surfaces of the upper surface 10u in the loaded state of the tissue paper bundle 10 over the entire length in the longitudinal side surface direction. The tissue paper bundle 10 bent in this way becomes an inverted Ω shape or an inverted convex shape when viewed from the end surface 10S, which is a surface where the unfolded edges of the tissue paper bundle 10 are arranged. Here, the amount of deflection can be adjusted by the amount of pressing by the deflection forming rod 52, and the curvature of the deflection can be adjusted by adjusting the width of the deflection forming rod 52.

  In addition to the example shown in FIG. 11, in order to form a space in the center between the longitudinal side surfaces on the bottom side of the bottom side of the tissue paper bundle 10, as shown in FIG. You may make it provide the part 53 and 53 and bridge | crosslink the tissue paper bundle 10 between the said protruding item | line parts. In addition, the structure which forms space in the bottom face 10b side of the tissue paper bundle 10 is not limited to the illustrated example.

  After the tissue paper bundle 10 is bent in a state in which the central portion between the long side surfaces in the loaded state is convex toward the bottom surface 10b side in the above-described bending forming step, the tissue paper bundle 10 is stored in the storage box. Store inside.

  Here, as can be understood from FIGS. 1 and 2, the storage box 2 used in the manufacturing method of the present invention has a rectangular upper surface 2U and a bottom surface 2B, and a straight surface having a long surface 20L and a short surface 20S connecting them. It has a hexahedron shape and has an annular perforation line 21 as an outlet forming portion on the upper surface 2U.

  When the perforation line is a substantially elliptical shape or rectangle having a long side in the direction along the longitudinal direction of the upper surface of the paper box as in the illustrated example, the take-out property and convenience are high. In the storage box according to the present invention, the range surrounded by the perforation line is covered by a resin film 22 having slits 24 formed along the longitudinal direction of the storage box 2 from the inside, and the annular perforation line By removing the area surrounded by the perforated line along the line 21, an outlet 25 is formed on the upper surface 2U of the paper box, and the resin film 22 and the slit 24 formed thereon are exposed through the outlet. Those are particularly preferred. The tissue paper 1 stored as the bundle 10 in the storage box 2 can be taken out one by one from the outlet 25 through the slit 24, and a part of the tissue paper 1 exposed from the outlet 25 can be removed by the slit 24. It is supported and falling into the storage box 2 is prevented.

  On the other hand, the manufacturing method of the present invention has an advantage in that it can manufacture a compact tissue paper product X1 particularly in terms of installation area as compared with the size of a conventional general product. It is desirable to use a more compact type than the conventional general-purpose type (generally about 115 mm short edge, about 230 mm long edge, and about 50 mm high). Specifically, it is desirable that the long edge L1 is 160 to 250 mm, the short edge L2 is 60 to 100 mm, and the height L3 is 45 to 100 mm. At least the size of the storage box 2 of this size can be adopted in the present invention.

  The structure of the storage box 2 includes an upper surface 2U, a bottom surface 2B, and a longitudinal surface 20L connected to these, and a bottom surface side piece 23B, a longitudinal surface side piece 23L, and an upper surface side piece 23U connected to both side edges in the longitudinal direction of each surface. The long side surface pieces 23L, 23L are folded back to the inner surface side of the box, and then the upper surface side piece 23U and the bottom surface side piece 23B are folded over and overlapped with each other, and the contact portion of each piece is made of hot melt adhesive or the like A structure in which the short surface 20S is formed by bonding can be exemplified, and this structure is also preferably used in the present invention.

  As shown in FIG. 10, the tissue paper bundle 10 is stored in the above-described storage box by turning it upside down so that the upper surface 2U on which the outlet forming portion 21 is formed is on the lower side and one short surface. The open short surface 20K of the storage box 2 in the opened state and the end surface 10S of the tissue paper bundle 10 in the bent state are attached together, and the open short surface 20K of the tissue paper bundle 10 is This is done by pushing the end face 10s not facing each other with the push rod 60 and pushing the tissue paper bundle 10 into the storage box. In addition, what is necessary is just to make the short surface open state of the storage box 2 into the state which opened the bottom face side piece 23B, the long surface side piece 23L, and the upper surface side piece 23U in the storage box 2 of the said illustration.

  As described above, the distance L5 between the longitudinal side surfaces of the tissue paper bundle 10 in the bent state is set shorter than the distance L2 between the longitudinal surfaces of the storage box 2, so that the storage by the push-in is smoothly performed.

  On the other hand, in the manufacturing method according to the present invention, with respect to the storage box 2, the distance between the longitudinal surfaces (length of the longitudinal edges) L2 is greater than the distance between the longitudinal side surfaces L4 before the deflection of the tissue wrapper bundle 10 manufactured by the interfolder. Also adopt a short one. By adopting such a storage box, as described later, when the tissue paper bundle 10 is stored in the storage box, the bending state of the tissue paper bundle 10 is suitably maintained in the storage box.

  In order to push the tissue paper bundle 10 in a bent state into the storage box, it is desirable to push the deflection forming rod 52 while pressing it against the upper surface 10 u of the tissue paper bundle 10. The tissue paper bundle 10 can be reliably pushed into the storage box without breaking the bent shape. In this way, in order to push the tissue paper bundle 10 into the storage box while pressing the deflection forming rod 52 against the tissue paper bundle 10, the push plate 61 constituting the push rod 60, as shown in FIG. This can be done by using a member provided with a notch 62 that allows the deflection forming rod 52 to be inserted therethrough.

  As shown in FIG. 20, the tissue paper bundle 10 is preferably stored in the storage box by using a conveyor or the like, as shown in FIG. Productivity is desirable when performed in parallel. Of course, in the present invention, the conveyance of the tissue paper bundle 10 and the storage box 2 may be stopped.

  The tissue paper bundle 10 pushed into the storage box tries to return to the bent state by the elasticity and self-weight restoring action of the tissue paper bundle itself. Since the distance between the longitudinal side surfaces of the bundle is smaller, the longitudinal side surfaces 10L and 10L of the tissue paper bundle 10 abut against the inner surfaces of the storage box longitudinal surfaces 20L and 20L. As a result, the longitudinal side surface is between the inner surfaces of the storage box longitudinal surfaces. The tissue paper bundle is kept bent in the storage box.

  Then, after the tissue paper bundle is pushed into the storage box, the open short surface 20K of the storage box is sealed. The open short surface 20K is sealed by folding the long side surface pieces 23L, 23L back to the inner surface side of the box in the above-described storage box, and then folding the upper surface side piece 23U and the bottom surface side piece 23B on top of each other. The abutting portion of each piece may be bonded with a hot melt adhesive or the like to form the short surface 20S.

  Thus, after the tissue paper bundle 10 is stored in the storage box, the top and bottom surfaces of the storage box are inverted to complete the tissue paper product X1 according to the present invention.

  In the manufacturing method of the present invention, the multi-stand type interfolder is adopted as described above, and when the tissue paper bundle and the storage box are stored in parallel, the processing speed is 250 to 500 shots / minute. Can do. This is a production speed comparable to that of existing general-purpose tissue paper products.

  Next, the tissue paper product X1 manufactured by the manufacturing method of the present invention will also be described. The tissue paper product X1 manufactured by the manufacturing method of the present invention, as can be understood from FIGS. 1, 2 and 12 to 14 in particular, It is stored in the storage box 2 in a state where the long side surfaces are bent and the central part between the long side surfaces is bent upward. Then, the tissue paper bundle 10 is bent and the longitudinal side surfaces 10L and 10L are brought into contact with the inner surfaces of the storage box longitudinal surfaces 20L and 20L, and the tissue paper bundle 10 and the longitudinal side surfaces 10L and 10L of the tissue paper bundle 10 and the storage box longitudinal surface. The longitudinal side surfaces 10L and 10L are sandwiched between the inner surfaces of the storage box longitudinal surfaces 20L and 20L without any margin between the inner surfaces of the 20L and 20L, and the convex shape on the upper surface side of the tissue paper bundle 10 is maintained in the storage box. In addition, the tissue paper bundle 10 cannot be freely moved in the direction across the longitudinal direction in the storage box and is restrained.

  The specific shape of the tissue paper bundle 10 in the bent state is such that the unfolded edges of the tissue paper bundle 10 are arranged in accordance with the formation of the deflection by the deflection forming rod 52, as shown in FIGS. As shown in FIG. 14, in addition to the shape in which a strip is formed along the longitudinal direction at the center in the width direction of the upper surface 10U so as to be an Ω-shape or a convex shape when viewed from the end surface 10S that is a surface, In the end view, the shape is a circular arc whose upper surface is convex. However, a thing of Ω shape or convex shape is preferable. This is because, compared with a simple arc shape, the entire tissue paper bundle is less likely to be lifted to the upper surface side when being pulled out, and the above-described storage state is easily maintained.

  On the other hand, in the storage mode of the tissue paper bundle 10 according to the product manufactured by the manufacturing method of the present invention, the distance between the tissue paper bundle 10 and the storage box upper surface 2U is preferably 0 to 5 mm. Within this range, it is easy to take out the first sheet after the perforation line 21 on the upper surface of the storage box is opened and the outlet 25 is formed, and the number of stored sheets can be sufficient. This distance can be adjusted according to the storage box used, the height of the tissue paper bundle, and the amount of deflection.

  Moreover, the specific amount of bending in the storing mode of the tissue paper bundle 10 according to the product manufactured by the manufacturing method of the invention is the bending with respect to the width (distance between the longitudinal side surfaces) L4 of the tissue paper bundle 10 in the non-flexing state. It is preferable that the width L5 of the tissue paper bundle in the state is 60 to 90%. Within this range, there is no possibility that the tissue paper bundle 10 will float in the storage box, and the long side surfaces 10L, 10L of the tissue paper bundle 10 are stored in the storage box long surfaces 20L, 20L due to the elasticity and shape recovery of the tissue paper bundle 10. The inner surface of the tissue paper 10 is sufficiently pressed, and the storage mode of the tissue paper bundle 10 in the bent state is suitably maintained. The adjustment of the bending amount can be adjusted by the pressing amount by the bending forming rod 52 or the like.

  On the other hand, in the product X1 manufactured by the manufacturing method of the present invention, in addition to the above storage mode, the gap between the end surface 10S of the tissue paper bundle 10 and the inner surface of the storage box short surface 20S of the storage box 2 is further increased. It is desirable that it is 0 or more and 25 mm or less. The movement of the tissue paper bundle 10 in the direction between the short sides in the storage box is also restricted, and the bending state of the tissue paper bundle 10 is suitably maintained in the storage box, so that the shape of the tissue paper bundle 10 is not lost. The adjustment between the end face and the short face can be achieved by adjusting the size of the tissue paper bundle and the size of the storage box.

  In the tissue paper product X1 of the present invention, it is desirable that the tissue paper bundle 10 is stored in the storage box so that the longitudinal direction (MD direction) of the paper is in the direction along the drawing direction. This can be achieved by manufacturing with a multi-stand interfolder.

  Here, as the tissue paper itself constituting the tissue paper bundle 10 according to the present invention, a known one can be used. Preferably, pulp fiber is used as the main material, and waste paper pulp may be blended as appropriate, but it is particularly preferable that the pulp fiber is composed only of NBKP and LBKP of virgin pulp. In this case, the blending ratio (JIS P 8120) is preferably NBKP: LBKP = 20: 80 to 80:20, and particularly preferably NBKP: LBKP = 30: 70 to 60:40.

  The tissue paper 1 according to the present invention may contain a chemical such as a softener, which is also referred to as a lotion chemical. However, as described in the background section, the lotion type and the general-purpose type are used. In the present invention, a product having a high significance of downsizing in a usage situation is a general-purpose type, and in the present invention, it is preferable to use tissue paper to which no chemical solution is applied. And it is desirable to have the following composition and physical properties in order to be suitable for general-purpose types that are frequently used not only for touching the skin but also for wiping off dust and dirt.

First, the basis weight according to JIS P 8124 is 10 to 25 g / m ² , preferably 11 to 20 g / m ² , more preferably 12 to 16 g / m ² , and the paper thickness is 80 to 250 μm, preferably It is good that it is 100-200 micrometers, More preferably, it is 130-180 micrometers. Note that the paper thickness is a sample obtained by pulling out tissue paper from the storage box, and each sample is collected evenly (set) from the top of the bundle to the bottom of the bundle. To do. In the measurement, the sample is pretreated for 2 to 4 hours in a thermostatic chamber. The measurement is performed with one sheet (one set), and the paper thickness gauge is a Peacock G type (for example, Peacock manufactured by Ozaki Seisakusho).

  Further, the dry tensile strength (hereinafter also referred to as dry paper strength) specified in JIS P 8113 is 200 to 700 cN / 25 mm, preferably 250 to 600 cN / 25 mm, particularly preferably 300 to 600 cN in the longitudinal direction in two plies. The lateral direction is 100 to 300 cN / 25 mm with 2 plies, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm.

  Further, the size of the tissue paper 1 according to the present invention is not particularly limited, but it is naturally preferable that the size of the tissue paper itself is not inferior to the conventional product, and only the size of the product appearance is made compact. Is preferably 180-220 mm in length and 150-240 mm in width, which can be said to be equivalent to tissue paper in conventional general-purpose tissue paper products.

  X1 ... tissue paper product, 1 ... tissue paper, 2 ... storage box, 2U ... storage box (paper box) top surface, 2B ... storage box (paper box) bottom surface, 10 ... tissue paper bundle, 10U ... top surface of tissue paper bundle, 10L ... Long side surface of tissue paper bundle, 10S ... End face of tissue paper bundle, 10B ... Bottom surface of tissue paper bundle, 20 ... Paper box, 20L ... Long side of storage box (paper box), 20S ... Short side of storage box (paper box), 21 ... Take-out forming part (perforation line) 22 ... Resin film, 23B ... Bottom side piece, 23L ... Long side piece, 23U ... Top side piece, L1 ... Long edge length of storage box, L2 ... Storage box L3: height of storage box, 1e: edge of tissue paper folded side, L4: width of tissue paper bundle in non-flexed state (distance between long side surfaces) L5: tissue paper in bent state Width of par bundle, M1 ... multi-stand type interfolder, 70 ... folding mechanism, 71 ... secondary roll, 72 ... folded plate, S4a, S4b ... secondary continuous sheet, 11 ... continuous laminated tissue paper bundle, M2 ... Cartoner loader, 50 ... conveying path, 51 ... concave groove, 52 ... deflection forming rod, 53 ... projection strip, 20K ... open short side, 10s ... end face not facing the open short side of tissue paper bundle, 60 ... push rod, 61 ... push plate, 62 ... notch.

Claims (6)

At the interfolder, fold the square tissue paper in half and stack the layers so that the edges of the folded pieces are stacked on top of each other so that the edges of the folded pieces are located on the folded inner surface of the other adjacent tissue paper. Produce a cube of tissue paper on the side,
The tissue paper bundle produced;
With the space extending in the direction along the long side surface provided in the center between the long side surfaces below the bottom side of the tissue paper bundle, the tissue paper is pressed against the center between the long side surfaces of the top surface of the tissue paper bundle. The central portion between the long side surfaces of the bottom surface side of the bundle is bulged into the space so that the long side surfaces of the tissue paper bundle are brought close together, and the central portion between the long side surfaces of the tissue paper bundle becomes convex toward the bottom surface side. Bend like
The deflected tissue paper bundle;
It has a rectangular hexahedron shape having a rectangular top surface and bottom surface, and a long surface and a short surface connecting them, and the distance between the long surfaces is shorter than the distance between the long side surfaces of the tissue paper bundle before bending, and at the center of the top surface. In the storage box in which the outlet extending along the longitudinal direction is formed, the long side surface of the tissue paper bundle faces the inner surface of the long side of the storage box, and the bulged convex portion faces the top surface of the storage box A method for manufacturing tissue paper products, wherein the tissue paper products are stored as described above.   A direction along the longitudinal side surface in the center between the longitudinal side surfaces below the bottom surface side of the tissue paper bundle by providing a concave groove in the conveyance path for conveying the tissue paper bundle and placing the tissue paper bundle across the concave groove. The tissue paper manufacturing method according to claim 1, wherein a space extending in the space is provided.   On the transport path for transporting the tissue paper bundle, the protrusions are provided at intervals in the transport direction, and the tissue paper bundle is bridged between the protrusions so as to be bridged. The manufacturing method of the tissue paper of Claim 1 which provides the space extended in the direction along a longitudinal side surface in the center between side surfaces. As the end face plane edges that are not folded back the tissue paper bundle aligned, and one end surface of the tissue paper bundle in a state of being deflected, the upper and lower surfaces upside down as and whereas a state opening the shorter side storage box open short and abutted against the hand side, from then on the tissue paper other end face of the storage box and does not face the bundle by pressing the tissue paper bundle of claims 1 to 3 for accommodating push the tissue paper bundle receiving box The manufacturing method of the tissue paper of any one .   The method for manufacturing tissue paper according to claim 4, wherein the tissue paper bundle is pushed into the storage box in a state where the deflection forming rod is pressed against the tissue paper bundle.   The tissue according to claim 3 or 4, wherein the tissue paper bundle is pushed into the storage box while the tissue paper bundle in the bent state and the storage box in a state where the short side surface is opened as an upside down surface are run side by side. Paper manufacturing method.

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