JP6891782B2 - Kitchen paper bundle manufacturing method and kitchen paper bundle manufacturing equipment - Google Patents

Description

The present invention relates to a method and an apparatus for producing a bundle of kitchen paper having a protrusion shape formed on one side by embossing or the like.

Tissue paper, kitchen paper, and other thin paper should be folded in half to form a stack, and then stored and packaged in a storage box with a slit-shaped outlet that can be pulled out one by one. To keep it clean.

In such thin paper, the production of bundles that are folded in half and folded so that they can be pulled out one by one is automated by using, for example, the folding production apparatus described in Patent Document 1.

Japanese Unexamined Patent Publication No. 2013-132439

By the way, in recent kitchen papers, a form in which a protrusion shape is formed on one side by embossing and is raised is often used, and this embossing obtains a suitable action effect such as shape maintenance. Usability has been improved.

However, in the manufacturing apparatus as described in Patent Document 1 for folding such kitchen paper, since the procedure is to fold it in half and alternately sandwich one side and stack it, the kitchen is placed in a pair of juxtaposed mechanisms. Paper will be supplied and folded. For this reason, if the forming surfaces of the protrusions of the kitchen paper supplied to the pair of mechanisms are not unified, the mutual relationship between the folding direction and the forming position of the protrusions will be different, and the protrusions will be formed each time the paper is used. There is a disadvantage that the position of the shape is different and the usability is deteriorated.

Further, if the positional relationship of the projection-shaped forming surface of the kitchen paper with respect to the folding manufacturing device is not constant, inconvenience may occur in the manufacturing process of the kitchen paper bundle.

Therefore, an object of the present invention is to provide a manufacturing method and a manufacturing apparatus capable of manufacturing a bundle in which kitchen paper having a protrusion shape formed on one surface side is folded with high quality and stacked.

One aspect of the invention of the method for producing a paper towel bundle that solves the above problems is a method for producing a paper towel bundle in which a plurality of sheets of kitchen paper are folded in half and alternately folded so as to sandwich one side thereof and stacked. The paper has a protrusion shape that protrudes on one side, and the kitchen paper is transferred in one direction, and the paper is folded in half so that the back surfaces of the protrusion-shaped forming surfaces face each other, and then folded in half first. It is characterized in that a bundle of kitchen papers is produced by sandwiching the preceding half surface of the kitchen papers to be folded in half in the transfer direction between the kitchen papers to be made.

One aspect of the invention of the kitchen paper bundle manufacturing device that solves the above problems is a kitchen paper bundle manufacturing device that folds a plurality of sheets of kitchen paper in half, folds them alternately so as to sandwich one side thereof, and stacks them. The paper has a protrusion shape that protrudes on one side, and the kitchen paper is folded in half so that the back surfaces of the protrusion-shaped forming surfaces face each other, and the kitchen paper bundles are stacked so as to alternately sandwich one side. It is characterized by having a mechanism for producing the above.

As described above, according to one aspect of the present invention, the back surfaces of the protrusion-shaped forming surfaces protruding on one side of the kitchen paper are folded in half so as to face each other. It can be made uniform, folded and stacked. Therefore, it is possible to produce a high-quality kitchen paper bundle that is easy to use and can be used in a state where the position of the protrusion shape is stable at the time of use without causing any inconvenience when folding the kitchen paper. it can.

Further, while avoiding excessive adhesion due to the presence of the protrusion shape, the surface side on which the protrusion shape is formed can be sucked and supported by surface contact, and the suction state can be easily eliminated to move to the next step. Can be done. Therefore, the work of folding the protrusion-shaped forming surfaces in the direction of facing each other can be smoothly performed, and a bundle of kitchen paper can be efficiently produced.

Therefore, it is possible to produce a bundle in which kitchen paper having a protrusion shape formed on one surface side is folded with high quality and stacked.

FIG. 1 is a perspective view showing a bundle of kitchen papers produced by the production method and the production apparatus according to the embodiment of the present invention and stored in a storage box. FIG. 2 is a conceptual diagram from the side for explaining the folding and stacking situation of kitchen paper. FIG. 3 is a front view showing a manufacturing apparatus for manufacturing a kitchen paper bundle by the manufacturing method. FIG. 4 is a partially enlarged front view showing the configuration of a main part of the kitchen paper bundle manufacturing device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 4 are views for explaining a method and an apparatus for producing a kitchen paper bundle according to an embodiment of the present invention.

(Explanation of the package of the kitchen paper bundle to be made)
In FIGS. 1 and 2, the kitchen paper P is made of a general-purpose paper material, and a protrusion shape Em is formed by ordinary embossing. The kitchen paper P is made into a bundle 10B by being folded in half by a rotary type interfolder device (manufacturing device) 100 shown in FIG. 3 and alternately stacked so that half-sided Ph is sandwiched between them. .. The kitchen paper bundle 10B is produced in the kitchen paper package 10P by being stored in the storage box 10. It should be noted that the kitchen paper P is folded in half when it is picked from the uppermost Pt and pulled out from the elongated hole 15 described later by forming a bundle 10B in which the subsequent half surface Ph is sandwiched between the two folds. Subsequent kitchen paper P sandwiched between the kitchen papers P is dragged and exposed by frictional force to form a package 10P that can be used continuously.

Here, the kitchen paper P is used in the kitchen, and is better than tissue paper or the like so as to have excellent water absorption and oil absorption so that water and oil can be effectively removed from the ingredients during cooking. It is made of thick thin paper, and embossing is often used to make the protruding shape Em to stand out on one side (surface) side so that the food can be placed away from the tray or the like. The kitchen paper P may be used as one sheet (so-called 1-ply), or a set of 2 sheets (so-called 2-ply) or 3 sheets (so-called 3-ply) or more may be used in the same manner as one sheet. Any of the forms to be used may be used, and in the present embodiment, the case where the two-ply form is used as one sheet will be described as an example.

Here, the kitchen paper P is preferably composed of crepe paper having a basis weight of 15 to 25 g / m ² (measurement method: JIS P 8124 [1998]), and more preferably 19 to 23 g / m ² tsubo. It is good to make the amount. This crepe paper is produced by using pulp fibers having a known composition suitable for kitchen paper as the fiber material, and is suitable to contain 90 to 100% by mass of virgin pulp. The pulp composition in which the peculiar effect of the present invention is remarkable includes coniferous pulp such as NBKP (coniferous kraft pulp) and NUKP (unbleached coniferous pulp), LBKP (hardwood kraft pulp) and LUKP (unbleached broadleaf pulp). The ratio of softwood pulp to broadleaf pulp is preferably 1 (25%): 3 (75%) to 1 (50%): 1 (50%). It is best to do. The thickness of the kitchen paper P is preferably 170 to 270 μm (measurement method: JIS P 8118). As a result, the kitchen paper P is excellent in water absorption and oil absorption, and is suitable for use in the kitchen.

Further, the kitchen paper P has a protrusion shape Em having a height of 50 to 90 μm formed by embossing, and the maximum cross-sectional area of the opening portion in the plane direction of the kitchen paper P in the space of the recess of the protrusion shape Em is 1. It is made to be .4 to 4.2 mm ² , preferably 2.8 ^{to 3.5 mm 2.} In this kitchen paper P, the protrusion shape Em is formed by embossing in a pattern having a separation interval of about 2 to 5 mm. As a result, the kitchen paper P can obtain the strength required for wiping and the like, and is suitable for use in the kitchen.

The upper surface 11 of the storage box 10 is formed in a shape similar to a rectangle obtained by folding kitchen paper P in half, and its short side surface 12 and long side surface 13 are formed to be about the thickness of a bundle 10B of kitchen paper P. It is made in the shape of a rectangular parallelepiped box. In this storage box 10, the protruding forming surface of the protruding shape Em is used as the front surface Sf, and the kitchen paper P in the state of a bundle 10B in which the back surface Sb is folded in half so as to face each other and the half surface Ph is alternately sandwiched is short in an open state. After inserting from the side surface 12, the upper piece 12a and the lower piece 12b are adhered to the extension pieces 13a and 13b of the long side surface 13 to close the piece. In the storage box 10, the upper surface 11, the side surfaces 12, 13 and the bottom surface (not shown) are made of thick paper, and the kitchen paper P on the uppermost surface can be picked near the center of the upper surface 11 which is one of the surfaces. As described above, the elongated hole 15 is formed so as to open with an area such that the fingertip can be inserted.

Specifically, since the kitchen paper P has protrusions Em protruding on both sides of the back surface Sb of the inner surface (front surface Sf) folded in half, the protrusions Em are located on the uppermost surface and the lowermost surface of the bundle 10B. ing.

Therefore, the protrusion shape Em of the bundle 10B of the kitchen paper P is exposed to the outside, and when the fingertip is inserted from the elongated hole 15 of the storage box 10 and the uppermost kitchen paper P is pulled out, the protrusion shape Em is used. It is possible to start using it comfortably by realizing picking while suppressing slippage. Further, the kitchen paper P exposed from the elongated hole 15 can also be picked by utilizing the suppression of slippage by the protrusion shape Em, and the next kitchen paper P can be picked without losing the frictional force between them. , Can be pulled out and exposed by dragging.

In the kitchen paper P of this bundle 10B, the formation surface Sf of the protrusion shape Em is located on the outer surface of the ceiling surface side and the floor surface side of the half-sided Ph folded in half, and the back surface Sb of the inner surface thereof is separately folded in two. The back surfaces Sb of the half-sided Ph are alternately sandwiched and stacked so as to face each other. On the inner surfaces of the kitchen paper P on the ceiling surface side and the floor surface side, the planar shape Pn of the back surface Sb of the forming surface Sf of the respective protrusion shape Em is brought into face-to-face contact, and the two separate half surfaces Ph sandwiched therein are contacted face to face. On the outer surface of the kitchen, the protrusion shapes Em are brought into face-to-face contact with each other. In addition, since the uppermost Pt of the kitchen paper P of the bundle 10B and the lowermost portion (not shown) only sandwich one half-sided Ph separately, the half-sided Ph on the ceiling surface side and the floor surface side folded in half The planar shape Pn of the inner surface (back surface Sb) is in face-to-face contact with the protrusion shape Em of the forming surface Sf of one separate half surface Ph.

(Explanation of kitchen paper bundle manufacturing equipment and manufacturing method)
As shown in FIG. 3, the rotary type interfolder device 100 receives the supply of kitchen paper base paper (so-called raw fabric) Pr from two systems, A system and B system, and stacks kitchen paper P to be folded in half. It is provided with a folding mechanism 110 for producing the kitchen paper bundle 10B. The interfolder device 100 includes a pair of first and second cutting devices 102A and 102B, first and second transfer rolls 111A and 111B, and first and second peeling devices 114A and 114B, respectively. The transfer rolls 111A and 111B and the peeling devices 114A and 114B constitute a folding mechanism (a device for producing a kitchen paper bundle 10B) 110.

The transfer rolls 111A and 111B rotate in the forward and reverse directions so that the tangential directions of the cylindrical outer peripheral surfaces 111sA and 111sB are in the same direction in the lower part of the drawing with respect to the rotating shafts 111rA and 111rB installed in parallel. To do. The transfer rolls 111A and 111B are the kitchen paper base papers Pr-A and Pr-B that are pulled out from a pair of left and right base paper rolls (not shown) and sent through the relay rollers 101A and 101B so as not to loosen. The outer peripheral surfaces 111sA and 111sB are wound around each of the outer peripheral surfaces 111sA and 111sB so that the forming surface Sf of the above is inside (the planar shape Pn of the back surface Sb is outside). By rotating, the transfer rolls 111A and 111B transfer the kitchen paper P cut and cut by the cutting devices 102A and 102B described later so as to move toward the folding position.

The cutting devices 102A and 102B are arranged at predetermined positions on the outer peripheral side of the transfer rolls 111A and 111B, and the kitchen paper base papers Pr-A and Pr-B are transferred by being supported by surface contact with the outer peripheral surfaces 111sA and 111sB. It is cut into kitchen paper P by cutting with cutters 103A and 103B at the positions where the protrusions 111pA and 111pB, which will be described later, are formed. The cutters 103A and 103B of the cutting devices 102A and 102B are formed on the blade lengths of the transfer rolls 111A and 111B that are wider than the widths of the kitchen paper base papers Pr-A and Pr-B, and the protrusions 111pA. , The kitchen paper base papers Pr-A and Pr-B located at the tip of 111 pB are contacted and cut.

The peeling devices 114A and 114B center on the fulcrums 114fA and 114fB so as to peel off the cut kitchen paper P supported by the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111sB, respectively. The release levers 114eA and 114eB rotate from the inside to the outside of 111sB.

Further, the transfer rolls 111A and 111B have bent protrusions (convex surface) 111pA and 111pB and bent grooves (concave surface) 111dA and 111dB formed on the outer peripheral surfaces 111sA and 111sB. The bent protrusions 111pA and 111pB and the bent grooves 111dA and 111dB are spaced in the circumferential direction (transfer direction) of the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B and at intervals corresponding to half the length of the kitchen paper P. They are alternately formed so as to mesh with each other at positions (shifted by half the length). In short, as the transfer rolls 111A and 111B rotate, the outer peripheral surfaces 111sA and 111sB of the outer peripheral surfaces 111sA and 111sB that face each other in close proximity to each other while the bending protrusions 111pA and 111pB and the folding grooves 111dA and 111dB change their meshing directions. , 111sB, the kitchen paper P after cutting, which is supported by surface contact, is transferred while being sandwiched between them.

At this time, the kitchen paper base papers Pr-A and Pr-B transferred by the transfer rolls 111A and 111B cut the tip positions of the bending protrusions 111pA and 111pB by the cutters 103A and 103B at the positions facing the cutting devices 102A and 102B. By doing so, they are cut into one piece of kitchen paper P and transferred to the downstream side while being supported by the outer peripheral surfaces 111sA and 111sB in surface contact with each other.

The cut end edge Pe is transferred when the cut kitchen paper P is sandwiched between the bent protrusions 111pA and 111pB of the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B and the bent grooves 111dA and 111dB and transferred. Is located near the center Pc in the transfer direction of another kitchen paper P. Therefore, in the kitchen paper P, the central Pc in the transfer direction is folded in a valley and folded in half, and the half-sided Ph of each of the two cut end sides Pe is sandwiched between them.

Specifically, the cut end edges Pe of each kitchen paper P are located on one side slope of the bending protrusions 111pA and 111pB of the transfer rolls 111A and 111B, and the kitchen paper P located on the opposite side of the other. The central Pc in the transfer direction is located so as to cover the bent grooves 111 dB and 111 dB. Then, when the bending protrusions 111pA and 111pB are pressed so as to enter the bending grooves 111dA and 111dB, the kitchen paper P has a valley fold crease in which the center Pc in the transfer direction is sandwiched between the edge Pe and the center Pc in the transfer direction. It is folded in half.

As a result, the half-sided Ph of the two cut pieces of kitchen paper P is sandwiched between the half-sided Ph of the kitchen paper P folded in half. At this time, in the kitchen paper P, since the forming surface Sf of the protrusion shape Em is on the inner side in contact with the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B, the planar shape Pn of the back surface Sb faces the inner surface side. It is folded in half so that the protrusion shape Em of the forming surface Sf is on the outer surface side.

Further, the transfer rolls 111A and 111B have suction passages 115A and 115B that communicate with the outer peripheral surfaces 111sA and 111sB, and are connected to a suction pump (not shown) to suck air in the suction passages 115A and 115B. It has a suction-capable mechanism. The suction flow paths 115A and 115B are opened at each of the slopes on both sides of the bent protrusions 111pA and 111pB to enable suction, and the bent grooves 111dA and 111dB are opened so as to be suctionable at one place. There is.

As a result, the transfer rolls 111A and 111B suck and suck the kitchen paper P (both ends Pe and the center Pc in the transfer direction) that come into surface contact with the outer peripheral surfaces 111sA and 111sB by sucking the inside of the suction flow paths 115A and 115B. Can be supported. At this time, since the kitchen paper P supported by surface contact with the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B is a fibrous paper that can circulate air on the front and back, one of the suction flow paths 115A and 115B When the suction of the air is stopped, the stopped side is attracted to the other surface side and is adsorbed and supported, and the fibers are stacked. Further, in the kitchen paper P, since the forming surface Sf of the protrusion shape Em is located on the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B, a gap is formed by the protrusion shape Em and the entire surface is not brought into close contact with each other. , Is sucked and supported by suction.

Therefore, the kitchen papers P of the A system or the B system, which are supported by surface contact with the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B, are alternately provided with valley folds at the center Pc in the transfer direction. The front and rear half-sided Phs are smoothly overlapped and folded in a state where the front and rear half-sided Phs are sandwiched between the two half-sided Phs folded in half.

Specifically, as shown in FIG. 4, in the kitchen paper P before and after the transfer, the next leading half surface Ph from which the suction support by suction is stopped is overlapped on the inner surface of the facing side leading trailing side half surface Ph. It is sucked and supported together.

At this time, in the kitchen paper P of the A system or the B system, the previous succeeding side half surface Ph and the next leading side half surface Ph are inserted so that the two end sides Pe are located on the central Pc side in the transfer direction. When folded in the sandwiched state, the next leading half surface Ph cannot be eliminated from the state of being in close contact with the outer peripheral surfaces 111sA and 111sB and is easily peeled off (separated) without sticking. Can be stacked.

After this, the stacked kitchen paper P is sucked with the further rotation of the transfer rolls 111A and 111B, so that the outer peripheral surface 111sA is dragged by the bundle 10B stacked downward with the rotation. , 111sB separated and stacked.

At this time, the kitchen papers P stacked in this way move from the inside to the outside of the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B to the folding side Pf of the valley fold outer surface located at the center Pc in the transfer direction. The peeling levers 114eA and 114eB of the rotating peeling devices 114A and 114B abut against each other. Therefore, the kitchen paper P is smoothly guided by the peeling levers 114eA and 114eB of the peeling devices 114A and 114B so as to be mechanically separated from the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B. , Guided and stacked so as to be stacked on the lower bundle 10B.

In the interfolder device 100 (folding mechanism 110) that executes the method for producing the kitchen paper bundle 10B of the present embodiment in this way, the kitchen paper P is folded in half so that the back surface Sb of the forming surface Sf of the protrusion shape Em of the kitchen paper P faces each other. Therefore, the forming surface Sf of the protrusion shape Em of the kitchen paper P can be uniformly exposed on the outer surface side, and can be folded in half and stacked without any inconvenience. Therefore, the kitchen paper P can be produced and provided in a kitchen paper bundle 10B of stable quality without the formation surfaces of the protrusion-shaped Em being disjointed on the front and back sides and deteriorating usability.

Further, since the Sf side of the forming surface of the protrusion shape Em is attracted to the outer peripheral surfaces 111sA and 111sB of the transfer rolls 111A and 111B and folded in half while supporting the surface contact, it is stable and there is no adsorption error such as sticking (efficiency). (Frequently) The kitchen paper bundle 10B can be produced by causing the interfolder device 100 to perform the work of folding in half with high quality.

Here, the kitchen paper P to be folded in half has different rigidity against the folding in half depending on which of the surface Sf on which the protrusion shape Em is formed and the back surface Sb thereof are faced to each other. .. Therefore, as in the present embodiment, the back surface Sb of the forming surface Sf of the protrusion shape Em is made to face each other, in other words, by setting the protrusion shape Em to the outer surface side, the interfolder device 100 can smoothly fold it in half. it can.

The scope of the present invention is not limited to the exemplary embodiments illustrated and described, but also includes all embodiments that provide an effect equal to that intended by the present invention. Furthermore, the scope of the present invention is not limited to the combination of the features of the invention defined by each claim, but may be defined by any desired combination of the specific features of all the disclosed features. ..

10 Storage box 10B Kitchen paper bundle 10P Kitchen paper package 100 Interfolder device 102A, 102B Cutting device 103A, 103B Cutter 110 Folding mechanism 111A, 111B Transfer roll 111dA, 111dB Folding groove 111pA, 111pB Folding protrusion 111sA, 111sB Outer circumference Surfaces 114A, 114B Peeling device 114eA, 114eB Peeling lever 115A, 115B Suction flow path Em Protrusion shape P Kitchen paper Pc Transfer direction Central Pe End side Pf Folded side Ph Half side Pn Plane shape Sb Back side Sf Forming surface

Claims (9)

The kitchen paper that is being transferred and folded in half first is folded in an alternating manner by sandwiching the leading half surface of the kitchen paper that is then folded in half in the transfer direction, and the kitchen is stacked. A device for making paper bundles
The kitchen paper has a protruding shape that protrudes on one side.
A pair of first transfer rolls and second transfer rolls are provided on each of the outer peripheral surfaces that rotate in parallel with the rotation axes in parallel and transfer the kitchen paper sent from each of the two systems while supporting them in surface contact.
In the first transfer roll and the second transfer roll, convex surfaces and concave surfaces that mesh with each other are alternately formed on the outer peripheral surfaces at intervals corresponding to half the length of the kitchen paper in the transfer direction, and the outer peripheral surfaces are formed. It has a structure in which the meshing directions of the convex surface and the concave surface are switched when the two are rotated while facing each other in close proximity to each other.
The convex surfaces of the outer peripheral surfaces of the first transfer roll and the second transfer roll are pressed against the protrusion-shaped forming surface of the kitchen paper and enter the concave surface to form creases that alternately form valley folds. It is characterized by having a mechanism for producing a kitchen paper bundle by folding the kitchen paper in half, folding it in half so that the back surfaces of the protrusion-shaped forming surfaces face each other, and stacking the kitchen paper so as to sandwich one side alternately. A device for making a bundle of kitchen paper. The first transfer roll and the second transfer roll are provided with a mechanism for sucking and sucking the kitchen papers of two systems to the outer peripheral surface, respectively, and sucking the kitchen paper on the forming surface side of the protrusion shape. The convex surface of each outer peripheral surface is pressed against the protrusion-shaped forming surface of the kitchen paper and enters the concave surface to form creases that alternately form valley folds. The apparatus for producing a kitchen paper bundle according to claim 1, wherein the kitchen paper is folded in half. The second aspect of claim 2, wherein the kitchen paper is cut at the tip position of the convex surface before the first transfer roll and the kitchen paper to be transferred by the second transfer roll are stacked. A device for making kitchen paper bundles. The first transfer roll and the second transfer roll are attracted and supported by surface contact by sucking the projection-shaped forming surface side in a state where each of the kitchen papers is shifted by half the length in the transfer direction. Transfer while doing
The suction mechanism of the first transfer roll and the second transfer roll sucks the kitchen paper on both the leading and trailing slopes of the convex surface, and sucks the kitchen paper on one slope on the trailing side of the concave surface. The apparatus for producing a bundle of kitchen paper according to claim 3. The first transfer roll and the second transfer roll switch the suction support of the leading half surface of the kitchen paper from one outer peripheral surface to the other outer peripheral surface, thereby switching the leading half surface of the kitchen paper to one side. Any one of claims 2 to 4, characterized in that the kitchen paper is separated from the outer peripheral surface of the kitchen paper and is folded and stacked so as to be sandwiched between two folds while being stacked on the subsequent half surface of the kitchen paper. Equipment for making kitchen paper bundles as described in the section. By guiding one side of the kitchen paper to be folded in half while being transferred in a direction of alternately mechanically separating from the outer peripheral surfaces of the first transfer roll and the second transfer roll, the kitchen paper is folded in half. The apparatus for producing a kitchen paper bundle according to any one of claims 1 to 5, further comprising an apparatus for folding and stacking the kitchen paper bundles so as to sandwich them. The kitchen paper that is being transferred and folded in half first is folded in an alternating manner by sandwiching the leading half surface of the kitchen paper that is then folded in half in the transfer direction, and the kitchen is stacked. A method of making a bundle of paper
The kitchen paper has a protruding shape that protrudes on one side.
A device provided with a pair of first transfer rolls and second transfer rolls that transfer the kitchen paper sent from each of the two systems while supporting the kitchen paper in surface contact on each of the outer peripheral surfaces that rotate in parallel with the rotation axes parallel to each other. Using
In the first transfer roll and the second transfer roll, convex surfaces and concave surfaces that mesh with each other are alternately formed on the outer peripheral surfaces at intervals corresponding to half the length of the kitchen paper in the transfer direction, and the outer peripheral surfaces are formed. It has a structure in which the meshing directions of the convex surface and the concave surface are switched when the two are rotated while facing each other in close proximity to each other.
The convex surfaces of the outer peripheral surfaces of the first transfer roll and the second transfer roll are pressed against the protrusion-shaped forming surface of the kitchen paper and enter the concave surface to form creases that alternately form valley folds. The kitchen is characterized in that the kitchen paper is folded in half, folded in half so that the back surfaces of the protrusion-shaped forming surfaces face each other, and stacked so as to alternately sandwich one side of the kitchen paper bundle. How to make a paper bundle. The first transfer roll and the second transfer roll have a mechanism for sucking the kitchen papers of two systems and sucking them on the outer peripheral surface.
By sucking the projection-shaped forming surface side of the kitchen paper, the kitchen paper is attracted and transferred while being supported by surface contact, and the convex surface of each outer peripheral surface is pressed against the protrusion-shaped forming surface of the kitchen paper. The method for producing a kitchen paper bundle according to claim 7, wherein the kitchen paper is folded in half by making creases that alternately form valley folds by entering the concave surface. A device for cutting the kitchen paper at the tip position of the convex surface before stacking the first transfer roll and the kitchen paper to be transferred by the second transfer roll is provided.
The first transfer roll and the second transfer roll are attracted and supported by surface contact by sucking the projection-shaped forming surface side in a state where each of the kitchen papers is shifted by half the length in the transfer direction. Transfer while doing
The suction mechanism of the first transfer roll and the second transfer roll sucks the uncut intermediate portion of the kitchen paper on both the leading and trailing slopes of the convex surface, and one slope on the trailing side of the concave surface. The method for producing a bundle of kitchen paper according to claim 8, wherein the cut tip portion of the kitchen paper is sucked.

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