JP6110707B2 - Toilet roll manufacturing method with chemical applied to end face, toilet roll manufacturing device with chemical applied to end face - Google Patents

Description

  The present invention relates to a toilet roll in which a belt-shaped toilet paper is wound around a paper tube, and more particularly to a manufacturing method and a manufacturing apparatus for a toilet roll in which a chemical solution containing at least one of a deodorant and a fragrance is applied to an end face.

For the purpose of deodorization and aroma in the toilet space, attempts have been made to impart an aroma function and a deodorization function to the toilet roll.
Conventionally, as a method for producing an illegit roll having such a fragrance function, (1) a method in which a deodorant or a fragrance is contained in an adhesive paste used when wrapping toilet paper around a paper tube, (2) a paper tube A method of adding a deodorant or fragrance to the adhesive used when bonding a plurality of paper tube base papers in the process of forming a sheet, and (3) glue for bonding the end of the toilet paper roll (product use start part) A method of adding a deodorant and a fragrance to (also referred to as tail seal paste) and (4) a method of applying and applying a deodorant and a fragrance to the inner surface of a paper tube have been proposed.

  However, in the methods (1) and (2), since the toilet roll to be manufactured is covered with the deodorant imparting portion by the toilet paper or the paper tube base paper, the fragrance function and the deodorizing function are sufficiently exhibited. There is a problem that it becomes difficult, and in the method (3) above, the manufactured toilet roll starts to use toilet paper and the adhesive paste part is used, and the aroma function and deodorizing function are not continuously exhibited. There is a problem of becoming something.

  In the method (4), the manufactured toilet roll can exhibit the deodorizing function and the fragrance function until it is used up without any problem of covering the position where the deodorant or the fragrance is applied. However, because the position where the deodorant and fragrance are applied is the inside surface of the paper tube, the contact area between the deodorant and fragrance and the outside air is narrow, making it difficult to improve the deodorant function and fragrance function. There is a problem.

  The conventional manufacturing method as described above has a problem to be improved. Such a problem can be improved if a deodorant or fragrance can be applied to a wide range of toilet rolls, and is eliminated on the end surface (also referred to as a mirror surface) of the toilet roll, which has a large area. This problem can be solved if odorants and fragrances can be efficiently applied.

  However, the end face of the toilet roll is easily crushed because it is formed by layering both side edges of the toilet paper, and the toilet roll is cylindrical and lightweight, so it is not a stable shape and is not produced. Since the transport speed at that time was fast, it was difficult to uniformly and efficiently apply the deodorant or fragrance to the end face of the toilet roll.

Japanese Patent No. 4430632 Japanese Patent No. 3538588 JP 2009-150032 A JP 2003-325372 A JP2011-104184A

  Therefore, the main problem of the present invention is to efficiently produce a toilet roll having a deodorant or a fragrance added to an end surface that can continuously and stably exhibit a fragrance function or a deodorant function. An object is to provide a toilet roll manufacturing method and a manufacturing apparatus.

The present invention that has solved the above problems and the effects thereof are as follows.
<Invention of Claim 1>
A cutting step of cutting a log, which is an intermediate product of a toilet roll, having the same diameter as the toilet roll and having a length more than twice that of the toilet roll, into individual toilet rolls by a rotating round knife,
In the cutting step, the end face is characterized by cutting the log while spraying and adhering the chemical solution to the side surface of the round knife by a spray coating device, and applying the chemical solution from the side surface of the round knife to the cut surface in contact with the log A method for producing a toilet roll in which a chemical solution is applied.

(Function and effect)
The production method of the present invention is excellent in production efficiency because the step of cutting the log into a toilet roll and the step of applying a chemical to the end surface are performed simultaneously.

  Moreover, the chemical | medical solution kind provided to a toilet roll end surface can be changed easily only by changing the chemical | medical solution type sprayed from a spray coating device. Moreover, since the chemical solution adhesion amount to the round knife is adjusted only by adjusting the spray amount of the spray coating apparatus, the adjustment of the chemical solution application amount to the end surface is easy.

  Furthermore, since the manufacturing method of the present invention applies the chemical solution to the side surface of the round knife in a non-contact manner, it is possible to manufacture a general-purpose toilet roll that does not apply the chemical solution to the end surface only by stopping the spray coating apparatus. That is, there is an advantage that it is easy to switch between the manufacture of a toilet roll having a chemical solution applied to the end face and a toilet roll to which no chemical solution is applied.

  When a log is cut into individual toilet rolls by a rotating round knife, the round knife first comes into contact with the log, and then the cut surface gradually expands and finally is completely cut. Therefore, as in the present invention, when the log is cut while spraying the chemical solution on the side surface of the rotating round knife, the chemical solution is continuously supplied to the side surface while the cut surface is enlarged. The chemical solution is uniformly applied to the end face of the toilet roll.

  Furthermore, the toilet roll manufactured by the present invention has a wide area among the toilet rolls, and a chemical solution is applied to the end surface exposed to the outside air.

  Therefore, if the chemical solution in the present invention is a deodorant or a fragrance, a toilet having a deodorant or a fragrance attached to the end surface that can continuously and stably exhibit a fragrance function or a deodorant function. A roll can be manufactured.

<Invention of Claim 2>
Side depth 2～40Myuemu, using round knife with a large number of drug solution holding hole size 100 to 300 [mu] m ^2, toilet rolls manufacturing method of chemical liquid is applied to the end face according to claim 1.

(Function and effect)
According to the invention described in this section, the adhesion of the chemical solution to the side surface of the round knife and the retention property of the chemical solution on the side surface of the round knife are improved. Therefore, more chemical liquid can be applied to the end face. In addition, since the retention of the chemical solution in the hole is increased, the chemical solution can be more uniformly applied to the entire cut surface.

<Invention of Claim 3>
The method for manufacturing a toilet roll having a chemical solution applied to an end face according to claim 1 or 2, wherein the log is cut by pressing a circular knife that moves to the peripheral surface of the stationary log.

(Function and effect)
Since the manufacturing method described in this section presses the circular knife that moves against the peripheral surface of the stationary log, the cut is unlikely to occur and the entire cutting surface is reliably in contact with the cutter blade.

<Invention of Claim 4>
The toilet roll of which the chemical | medical solution was given to the end surface of Claim 1 or 2 which cuts out a plurality of toilet rolls simultaneously by applying a log peripheral surface to the round knife group arranged in parallel at intervals in the width of the toilet rolls Production method.

(Function and effect)
The manufacturing method described in this section is excellent in production efficiency because a plurality of toilet rolls having chemicals applied to the end face are cut out simultaneously from the log.

<Invention of Claim 5>
When the chemical solution is intermittently sprayed from the spray coating device to the side of the round knife and the distance between the log peripheral surface and the blade edge of the round knife reaches a predetermined distance in a straight line, the spray coating device moves from the spray coating device to the side of the round knife. The manufacturing method of the toilet roll by which the chemical | medical solution was provided to the end surface of any one of Claims 1-4 which sprays a chemical | medical solution.

(Function and effect)
In the invention described in this section, since the chemical solution is preliminarily applied to the side surface of the round knife before the log contacts the round knife, the chemical solution can be reliably applied to the cut surface.
Further, the chemical solution is not excessively applied to the round knife.

<Invention of Claim 6>
A rotating round knife that cuts individual toilet rolls from a log, which is an intermediate product of toilet rolls, that is the same diameter as the toilet roll and that is more than twice the length of the toilet roll, and a chemical solution toward the side of the round knife An apparatus for manufacturing a toilet roll having a chemical solution applied to an end face thereof, comprising: a spray application device for spraying.

(Function and effect)
The same effects as those of the first aspect of the invention can be achieved.

<Invention of Claim 7>
Round knife, a depth on the sides of 2～40Myuemu, toilet rolls of the manufacturing apparatus the chemical solution is applied to the end face of claim 6 having a large number of drug solution holding hole size 100 to 300 [mu] m ^2.

(Function and effect)
The same effects as those of the invention of the second aspect are achieved.

  As described above, according to the present invention, it is possible to efficiently produce a toilet roll provided with a deodorant or a fragrance on an end face that can continuously and stably exhibit a fragrance function or a deodorant function. A method and apparatus for manufacturing a toilet roll is provided.

It is a perspective view of the toilet roll which concerns on this embodiment. It is a figure explaining the outline | summary to the log cutting process of the manufacturing process of a toilet roll. It is explanatory drawing of 1st Embodiment of the log cutting process which concerns on this invention. It is another explanatory drawing of 1st Embodiment of the log cutting process which concerns on this invention. It is explanatory drawing of 2nd Embodiment of the log cutting process which concerns on this invention. It is another explanatory drawing of 2nd Embodiment of the log cutting process which concerns on this invention. It is a side view of the round knife concerning the present invention. It is explanatory drawing of the 2 fluid type spray coating device which concerns on this invention. It is explanatory drawing of the rotor dampening type spray coating device which concerns on this invention.

Embodiments of the present invention will be described below with reference to FIGS.
As shown in FIG. 1, a toilet roll 10 manufactured according to the present embodiment has a cylindrical shape around which a belt-shaped toilet paper S3 is wound, and particularly a chemical solution on an end surface 14 (sometimes referred to as a mirror surface). Is given.

  The manufacturing method of the toilet roll in which the chemical | medical solution was provided to the end surface 14 which concerns on this embodiment manufactures the log 20 first. The log 20 has the same diameter as the wound diameter (diameter) L1 of the toilet roll 10 as a product, and has a width equal to or more than a plurality of the width L2 of the toilet roll as the product, and is an intermediate in manufacturing the toilet roll. It is a product.

  In the present invention, the manufacturing method of the log 20 is not limited, but a preferable manufacturing method of the log 20 will be described with reference to FIG. The method for manufacturing the log 20 according to the present embodiment shown in FIG. 2 is a method for manufacturing the log 20 according to the cored toilet roll having the paper tube 11.

The log manufacturing method of the present embodiment shown in the figure includes a process (A) for manufacturing a long paper tube 15 and a winding process (B). In the process of manufacturing the long paper tube 15 ((A) in FIG. 2), the two strip-shaped paper tube base papers 12 and 12 are fed out from the raw rolls 2 and 2, respectively, and are glued in place at a predetermined position. Glue is applied, and the glued part is piled up and wound around the shaft spirally with a core winder. Then, the shaft is pulled out and cut into a specified length according to the production type using a slitter. A long paper tube 15 is formed. The amount of paste applied is not particularly limited, but is generally about 0.1 to 5.0 g / m ² . Moreover, the thing for paper tubes in the range which does not interfere with the effect of this invention can be used for glue, An acrylic adhesive, a hot-melt-adhesive, a starch paste, PVA (polyvinyl alcohol) etc. can be illustrated.

  When applying a chemical solution to the paper tube 11, the chemical solution may be contained in the adhesive, or the chemical solution may be applied to the paper tube base paper 12. In the case of applying the chemical solution to the paper tube base paper 12, although not shown, a chemical solution application means such as a known printing machine can be used.

  Each of the paper tube base papers 12 and 12 may use a different original fabric. For example, one of the paper tube base papers 12 and 12 may be printed, or each rice paper basis may be changed. Also in the present invention, the paper tube base papers 12 and 12 are not necessarily the same.

  Subsequently, in parallel with the production of the long paper tube 15 or thereafter, in the winding process ((B) in FIG. 2), the toilet paper base paper S1, which has substantially the same width as the long paper tube 15, is provided. S1 is unwound from rolls R and R and wound to form a log 20. This winding can be performed by a known winder device X2. In the illustrated example, toilet paper bases S1 and S1 are fed from two rolls R and R. , The toilet paper base paper S2 having a two-ply structure is formed at the overlapping portion 16, and then contact embossing and perforation lines (not shown) are formed by the known contact embossing device 17 and perforation line forming device 18. After the above, the winding device 19 makes a winding two-ply structure.

  In the illustrated embodiment, toilet paper bases S1 and S1 are fed out from two rolls R and R to form a laminated paper toilet paper S2 having a two-ply structure. However, the present invention is limited to such two plies. 1 ply or 3 plies or more may be used. Furthermore, in the case of a multi-ply structure, it is not necessary for the base paper and physical properties of each base paper to be the same. Alternatively, the log 20 may be formed by feeding the laminated sheet from a roll obtained by winding a previously laminated sheet and winding it around the long paper tube 15.

  When the log 20 is manufactured in this way, the log 20 is moved to the subsequent log cutter facility X4 while stocking a plurality of logs by the known log accumulator X3.

  The log manufacturing method of FIG. 2 described above is a method of manufacturing a log related to a cored toilet roll in which a strip-shaped toilet paper S3 is wrapped around a paper tube 11, but the log according to the present invention is also proved to be coreless. It may be a log related to a coreless toilet roll. A well-known method can be adopted for manufacturing the log relating to the coreless toilet roll. For example, after the toilet paper base paper is wound around a core shaft made of metal such as stainless steel instead of a paper tube, the core shaft can be drawn out.

  On the other hand, in the manufacturing method of the toilet roll 10 to which the chemical | medical solution concerning this embodiment was provided to the end surface, a chemical | medical solution is provided to the end surface 14 simultaneously with the cutting | disconnection of the log 20 by the log cutter equipment X4. The log cutter facility X4 according to the present embodiment has a rotating circular knife 31 in the form of a thin disk, and thereby cuts the log 20 into individual toilet rolls 10, 10,. The blade of the round knife 31 may be a double-edged blade or a single-edged blade, but is preferably a double-edged blade.

  The method of cutting the log 20 with the circular knife 31 is a form in which the circular knife 31 moving against the peripheral surface of the stationary log 20 is pressed and cut (hereinafter also referred to as a first cut form), the width of the toilet roll 10. A plurality of toilet rolls 10, 10... Can be cut at the same time by applying the peripheral surface of the log 20 to a group of round knives arranged in parallel at intervals of L2 (hereinafter also referred to as a second cut form). .

  If these forms are demonstrated in detail, the 1st cut form can be performed by the log cutter equipment X4a shown in FIG.3 and FIG.4. The log cutter facility X4a includes a supply unit 32 that intermittently feeds the log 20 to a cutting position, a clamp 33 that fixes the log 20 at the cutting position, and a cutter 30 that includes a round knife 31. The cutter 30 has round knives 31 and 31 rotatably attached to both ends of the arm 34 via rotary shafts 35 and 35, and the round knives 31 and 31 are connected to the rotary shafts 35 and 35 by a drive source (not shown). 35 is configured to rotate around 35. The cutter 30 has an arm 34 itself attached to a rotary shaft 36 at the center between both ends, and is configured to rotate by a drive source (not shown). Accordingly, the round knives 31 and 31 are revolved around the rotation axis of the arm 34 and are rotated around the rotation axis of the arm 34.

  In the cutter equipment X4a according to the first cut mode, the log 20 is fed from the upstream side by the supply means 32 so as to jump out the length L2 of the toilet roll 10 to the downstream side across the revolution trajectory of the round knife 31. And fixed by the clamp 33 at that position. In this state, the rotating round knife 31 hits the log 20 as the arm 33 rotates, and at that time, the tip portion of the log 20 is cut by the width of the toilet roll L2, and the cut portion is an individual toilet roll. 10 Further, after the cutting, before the next round knife 31 reaches the cutting position on the revolving track, the clamp 33 is released, and the remaining portion of the log 20 is moved by the supply means 32, so that the round knife The length of the width L2 of the toilet roll 10 is jumped out to the downstream side across the 31 revolution trajectory, and is fixed by the clamp 33 again. The operation of supplying, fixing, cutting, and releasing the log 20 is repeated, and a plurality of individual toilet rolls 10, 10,. In addition, since the end surface of the front end portion and the rear end portion of the log may not be aligned, this portion may be appropriately cut off and recovered as waste paper without being used as a toilet roll.

  In the log cutter equipment X4a according to the first cut form, the revolution speed of the round knife 31 is preferably 100 to 150 rpm when it is constituted by two round knives as shown. If it is this grade, toilet roll 10,10 ... can be cut out from the log 20 efficiently. The size of the round knife 31 and the radius of the revolution trajectory are appropriate design matters. Of course, in such equipment X4a, the rotary shaft and arm of the round knife are prevented from hitting the log.

  On the other hand, the 2nd cut form can be performed by the log cutter equipment X4b shown in FIG.5 and FIG.6. The log cutter equipment X4b is configured such that a conveyor means 41 that conveys the log 20 in a direction perpendicular to the axis, that is, in a circumferential direction, and a length of the toilet roll 10 is spaced along the path of the conveyor means 41. It has a round knife group consisting of a plurality of round knives 31, 31. The circular knives 31, 31... Are arranged so that the rotating shaft and the traveling direction of the conveyor are orthogonal, and are arranged side by side so that the blades partially protrude on the transport plane of the conveyor 40.

  In the cutter equipment X4b according to the second cut form, the log 20 is transferred in the circumferential direction by the conveyor means, and the log circumferential surface is in contact with each of the round knives 31, 31,. Toilet rolls 10, 10... Are cut out simultaneously. The individual roylet rolls 10, 10... Cut simultaneously are conveyed downstream by the conveyor 41 as they are. In addition, since the end surfaces of the both end portions of the log may not be aligned, the portions 10c and 10c are cut off instead of being used as a toilet roll and recovered as waste paper in the forms of FIGS. .

  In the log cutter facility X4b according to the second cut form, it is desirable that the conveying speed of the conveyor 41 is 20 to 36 m / min. At this speed, the log 20 can be sufficiently cut by the group of round knives.

  In the log cutter facility X4b according to the second cut form, the size of the round knives 31, 31... And the height of the blades exposed on the conveyor are appropriate design matters. The height of the blade that is completely cut, and of course, the rotation shaft 35 and the like are configured not to hit the log 20.

  In the first cut form and the second cut form, as understood from FIGS. 3, 4, 5, and 6, the spray application device is disposed in the vicinity of the side surfaces of the round knives 31, 31. The spray solution is sprayed onto the side surfaces of the round knives 31, 31,. When the log 20 is cut with the circular knives 31, 31,..., The chemical solution is applied from the side surfaces of the circular knives 31, 31,. In the illustrated example, the chemical solution is applied to the round knife 31 so that the chemical solution is applied to both end surfaces 14 of the toilet roll 10, but in the present invention, the chemical solution is applied only to one side surface of the round knife 31. Thus, the chemical solution may be applied only to one end surface of the toilet roll. Whether the chemical solution is applied to both end surfaces or the chemical solution is applied to one end surface can be appropriately changed depending on whether or not a spray coating apparatus is installed and whether or not a chemical solution is sprayed from the spray coating apparatus.

Here, in this embodiment, the number of plies is 1 to 3, the basis weight per ply is 10 to 25 g / m ² , and the roll diameter (diameter) is 100 to 120 mm wound with toilet paper having a thickness of 80 to 250 μm. If a log relating to a general toilet roll having a core diameter of 10 to 48 mm and a winding length of 20 to 100 m is cut, it is desirable that the peripheral speed of the round knife 31 is 860 to 1260 m / min. The chemical solution can be suitably attached from the spray coating device 50 to the side surface of the round knife, and the log 20 can be suitably cut. Furthermore, the chemical solution can be suitably attached from the side surface of the round knife 31 to the cut surface serving as the end surface of the toilet roll 10.

  On the other hand, the size of the round knife 31 is not necessarily limited, but when cutting a log related to the above-described general toilet roll, it is desirable that the radius (r) = 250 to 350 mm. With the round knife 31 having such a radius, the cut surface of the toilet roll 10 can be positioned within a range of 200 mm from the cutting edge on the side surface of the round knife 31 when the log 20 is cut.

  Therefore, it is desirable that the position of the chemical solution on the side surface of the round knife 31 be in the range of 2 to 200 mm from the cutting edge of the round knife 31. When a chemical solution is applied within a range of 2 mm from the cutting edge of the round knife 31, the wet cutting edge of the round knife 31 comes into contact with the log peripheral surface, which affects the cutting performance, or a clean cut surface, that is, an end surface. May not be formed. Moreover, if it is 200 mm, it can be set as the apparatus structure which fully contacts the cutting surface of the log 20, and even if a chemical | medical solution is given to the position exceeding 200 mm from a blade edge | tip, it will also lead to the waste of a chemical | medical solution. .

Here, since the side surface of the round knife 31 is normally in contact with the cut surface, the side surface of the round knife 31 is substantially flat. Naturally, the round knife 31 according to the present embodiment does not have excessive unevenness. However, in the round knife 31 of the present embodiment, as shown in FIG. 7, in order to improve the adhesion and retention of the chemical solution to the side surface, a large number of chemical solutions having a depth of 2 to 40 μm and a size of 100 to 300 μm ² are retained on the side surface. Holes 60, 60 ... may be formed. Or a less than 2μm drug solution holding holes 60, 60 ... depth and or less than 100 [mu] m ^2, not only it is impossible to sufficiently improve the chemical adhesion amount, the cut surface by a round knife side (end surface) is cut As a result, paper dust is excessively generated and a beautiful end face may not be formed. Further, when the depth exceeds 40 μm or the size exceeds 300 μm ² , there is a high possibility that the chemical solution enters the hole and cannot be applied to the cut surface, or the chemical solution is excessively held and the cut surface is broken. Further, the density of the chemical solution holding holes 60, 60... Is preferably 400 to 1000 / cm ² . With such a density, the amount of chemical solution attached can be sufficiently increased, and the side surface of the round knife is not excessively roughened.

  Even when the chemical solution holding holes are provided as described above, the upper edges of the holes are made to coincide with each other so that portions other than the holding holes are substantially flat. Further, when the chemical solution holding holes 60, 60... Are provided, the upper edge of each chemical solution holding hole 60, 60... Is chamfered to reduce friction between the side surface of the round knife 31 and the cut surface. Is desirable.

  As a range for forming the chemical solution holding holes 60, 60..., A range L5 of 2 to 200 mm from the cutting edge of the round knife, which is the above-described preferable chemical solution attachment range, is desirable.

  On the other hand, in this embodiment, a chemical | medical solution is made to adhere from the spray coating apparatus 50 to the round knife side surface as mentioned above. The weight average particle diameter of the mist droplets sprayed from the spray coating device 50 is preferably 20 to 150 μm. Moreover, as a kind of the spray application apparatus 50, things, such as a two-fluid type nozzle type spray system and a rotor dampening spray system, are desirable. More preferably, it is a rotor dampening spray system.

  As shown in FIG. 8, the two-fluid spray type spray coating apparatus 51 has a chemical liquid passage 110A at the center and an air passage 110B around it, and the chemical liquid L ejected from the tip of the chemical liquid passage 110A is supplied to the air passage 110B. The liquid L is atomized by the air discharged from the gas, and the chemical liquid L can be sprayed in a substantially conical shape.

  As shown in FIG. 9, the rotor dampening spray type spray coating device 52 has a fluid chamber 143 having a jet portion 142 rotated at a high speed, and a chemical solution is sent into the fluid chamber 143, and the centrifugal force is applied to the fluid chamber 143. The chemical liquid is discharged from the injection unit 142 to form fine droplets. The droplet diameter is controlled by changing the rotation speed of the fluid chamber 143, and the amount of spray liquid ( The coating amount is controlled. The rotor dampening spraying method has an advantage that a small amount of spray liquid can be uniformly applied while suppressing the spraying of mist droplets, and the adjustment of the spraying speed, the particle size of the mist, and the like is easy.

  In the illustrated rotor dampening type spray coating apparatus, a shutter 145 that preferably opens and closes the spray port 144 is provided, and the presence or absence of spraying can be controlled by opening and closing the shutter 145.

  On the other hand, it is desirable to install the spray application device 50 so that the spray port is located at a position less than 50 mm from the side surface of the round knife 31. If the side surface of the round knife and the spray port of the spray coating device are excessively separated, the fine liquid droplets sprayed from the spray coating device 50 are scattered around and unintentionally adhere to portions other than the end surface, or the surrounding environment. The risk of deteriorating is increased.

  On the other hand, in attaching the chemical solution to the end face according to the present embodiment, in the first cut mode, the spray coating device 50 is installed in the vicinity of a predetermined position on the revolution trajectory of the round knife 31, and the round knife 31 is placed at the position. When the distance is reached, the chemical solution is sprayed toward the side surface of the round knife 31. In the second cut mode, the side surface of the round knife 31 is reached when the distance between the log 20 and the round knife group reaches a predetermined distance. Spray the drug solution toward. Of course, the spray coating device 50 is arranged at a position where the chemical solution can be continuously sprayed on the side surface of the round knife 31 until the cutting edge of the round knife 31 comes into contact with the circumferential surface of the log and is completely cut. In either case, the specific timing is preferably when the distance between the log peripheral surface and the cutting edge of the round knife is 150 to 250 mm in a linear distance. When the chemical solution is continuously sprayed from the spray coating device 50 to the round knife 31, the chemical solution may be excessively attached to the side surface of the round knife and the chemical solution may be scattered around by its own rotation. When the separation distance between the log peripheral surface and the cutting edge of the round knife is 150 to 250 mm in a linear distance, the chemical solution is sprayed on the side surface of the round knife 31 from the spray coating device 50 and attached. There is no risk of an accident. Note that the time until the log 20 contacts the cutting edge of the round knife 31 from the position of 150 to 250 mm is 0.01 to 0.5 seconds in consideration of productivity. It can be sufficiently adhered to the side surface of 31.

  In addition, when the chemical solution is sprayed intermittently from the spray coating device 50 according to the distance between the cutting edge of the round knife 31 and the log 20, the rotor dampening spray coating device 52 is suitable.

  On the other hand, the amount of the chemical liquid sprayed from the spray coating device 50 to the round knife 31 may be appropriately adjusted according to the amount of the chemical liquid applied to the end face of the toilet roll 10. Since the toilet roll 10 is low in density and excellent in chemical absorption, almost all of the chemical liquid attached to the portion in contact with the cut surface of the chemical liquid attached to the side surface of the round knife 31 is applied to the end face. Therefore, it is only necessary to adjust the spray amount from the spray coating device in consideration of how much chemical solution is attached to the portion in contact with the cut surface.

  On the other hand, it is desirable that the chemical solution applied to the end face 14 of the toilet roll 10 in this embodiment includes at least one of a fragrance and a deodorant. These chemical solutions may be disliked by consumers touching the skin directly, rather than being applied to the surface of the toilet paper S3 that contacts the skin when in use, the edge of the toilet paper S3 is layered, When it is used as toilet paper, it is desirable to apply it to the end face 14 that hardly comes into contact with the user. The penetration depth of the chemical liquid from the end face 14 is less than 10 mm, preferably less than 5 mm, more preferably 1 mm. In other words, the chemical solution may penetrate from the both side edges of the toilet paper to a range of less than 10 mm width, preferably less than 5 mm width, more preferably less than 1 mm width. At this level, the risk of direct contact with the skin when the skin is wiped is significantly reduced. This can be adjusted by adjusting the amount of the chemical solution attached to the side surface of the round knife 31. In addition, since the end surface 14 of the toilet roll 10 is formed by overlapping both side edges of the toilet paper, in the case of a highly adhesive chemical solution, the toilet paper S3 is prevented from being smoothly pulled out, and the toilet paper breaks when being pulled out. Or the dry chemical solution may fall off and dirty the toilet space. Therefore, it is desirable that the chemical solution does not have excessive adhesiveness.

  Examples of the deodorant according to this embodiment include polyphenols extracted from tea, rice cake, etc., essential oils extracted from cedar, cypress, etc., titanium dioxide, aluminum dioxide, graft polymer-type deodorant, betaine compound-based deodorant. It is desirable to contain at least one of odorant, zirconium compound, copper compound, zeolite, activated carbon, and ion exchange resin.

  However, those suitable for spray coating are those having a low viscosity and containing no solid content, and from such a viewpoint, the polyphenol deodorant is most preferable. A polyphenol deodorant is a polyphenol extracted from plants and processed products of plants, and derivatives of the polyphenol, and is an ammonia that is at least one of the main malodorous components present in the toilet space due to reactivity with phenolic hydroxyl groups It has a deodorizing function. Of course, in addition to ammonia, there are those that are reactive to hydrogen sulfide, methyl mercaptan, and trimethylamine, which are known as malodorous components in the toilet space, and have a deodorizing function. It may be something like this. For example, among polyphenol derivatives, there are known compounds such as Japanese Patent No. 3919729 in which an appropriate functional group is added to an artificially high molecular weight polyphenol to add or enhance a deodorizing function for a specific component. However, it may be such. The polyphenol deodorant is not limited to either one of polyphenol or polyphenol derivative, and both may be included. Also, it may be a mixture of several types of polyphenols and polyphenol derivatives.

  In particular, tannin and its derivatives are desirable among polyphenol-based deodorants. Tannin and tannin derivatives are excellent in deodorizing function because they have a large molecular weight and many phenolic hydroxyl groups. Tannin may be either condensed tannin or hydrolyzed tannin. Among the tannins, cocoon tannin derived from cocoon has a very large molecular weight and is extremely excellent in the deodorizing effect. Therefore, the polyphenol deodorant should contain at least one of this tannin and cocoon tannin derivatives. It is good to do.

  More specific products of polyphenol-based deodorants include Pancil COS-15, Pancil COS-17, Pancil CL-10, Pancil AS-10, Pancil AS-20, and Pancil BA-210 manufactured by Release Kagaku Kogyo Co., Ltd. -1, Pancil COS-5, Pancil FG-22, Pancil FG-25, Pancil FG-30, Pancil FG-60, Pancil FG-70, Pancil FG-99, Pancil FX-10, Pancil PO-10, Pancil BA -200E-1 is an example.

  On the other hand, as the fragrance according to the present embodiment, a natural or synthetic known fragrance can be used. Specific examples include natural perfumes such as lemon oil, grapefruit oil, rosemary oil, peppermint oil, mandarin oil, lime oil, yuzu oil, chamomile oil, lavender oil, rose oil, spearmint oil; linalool, citronellol, menthol, Synthetic fragrances such as alcohols such as geraniol. These may be used alone or in combination as a blended fragrance. The selection of the fragrance may be determined according to the desired fragrance tone.

  On the other hand, in the present embodiment, it is preferable to apply a chemical to the paper tube. When applying a chemical to the inner surface of the paper tube, it may be the same as or different from the chemical applied to the end face.

On the other hand, in the manufacturing method of the toilet roll 10 according to the present embodiment, after being cut by the log cutter facility X4 to form individual toilet rolls 10, a product can be obtained by film packaging or the like. In the toilet roll 10 according to the present embodiment, if the chemical liquid applied to the end face is a deodorant or a fragrance, the odor component is produced while being transported to the store after production or displayed as a product at the store. JIS K 7126 (2006) (isobaric method: Mokon method / 23 ° C.) so that the deodorizing function does not deteriorate due to contact between the odorant and the deodorant or volatilization of the deodorant or fragrance unintentionally. It is desirable to package with a resin film having a gas barrier property with an oxygen permeability of 0.1 to 50 ml / m ² · day based on × 65% RH).

  2 ... Raw roll, 10 ... Toilet roll, 11 ... Paper tube, 14 ... End face, S3 ... Toilet paper, L1 ... Toilet roll diameter (winding diameter), L2 ... Toilet roll width, 15 ... Long paper tube, DESCRIPTION OF SYMBOLS 16 ... Superposition part, 12 ... Paper tube base paper, 13 ... Glue roll, 13 ... Glue roll, S1 ... Toilet paper base paper, S2 ... 2-ply toilet paper base, 17 ... Contact embossing grant device, 18 ... Perforation line grant device 19 ... Winding device, R ... Roll, 20 ... Log, X2 ... Winder device, X3 ... Log accumulator, X4, X4a, X4b ... Log cutter equipment, 30 ... Cutter, 31 ... Round knife, 32 ... Supply means, 33 ... Clamp, 34 ... Arm, 35 ... Rotating shaft, 36 ... Rotating shaft, 41 ... Conveyor means, 50 ... Spray coating device, 5 ... Two-fluid spraying spray application device, 52 ... Rotor dampening spraying spray application device, 60 ... Chemical solution holding hole, 110A ... Chemical solution passage, 110B ... Air passage, 142 ... Injection section, 143 ... Fluid chamber, 144 ... Spray port, 145 ... Shutter.

Claims (7)

A cutting step of cutting a log, which is an intermediate product of a toilet roll, having the same diameter as the toilet roll and having a length more than twice that of the toilet roll, into individual toilet rolls by a rotating round knife,
In the cutting step, the end face is characterized by cutting the log while spraying and adhering the chemical solution to the side surface of the round knife by a spray coating device, and applying the chemical solution from the side surface of the round knife to the cut surface in contact with the log A method for producing a toilet roll in which a chemical solution is applied. Side depth 2～40Myuemu, using round knife with a large number of drug solution holding hole size 100 to 300 [mu] m ^2, toilet rolls manufacturing method of chemical liquid is applied to the end face according to claim 1.   The method for manufacturing a toilet roll having a chemical solution applied to an end face according to claim 1 or 2, wherein the log is cut by pressing a circular knife that moves to the peripheral surface of the stationary log.   The toilet roll of which the chemical | medical solution was given to the end surface of Claim 1 or 2 which cuts out a plurality of toilet rolls simultaneously by applying a log peripheral surface to the round knife group arranged in parallel at intervals in the width of the toilet rolls Production method.   When the chemical solution is intermittently sprayed from the spray coating device to the side of the round knife and the distance between the log peripheral surface and the blade edge of the round knife reaches a predetermined distance in a straight line, the spray coating device moves from the spray coating device to the side of the round knife. The manufacturing method of the toilet roll by which the chemical | medical solution was provided to the end surface of any one of Claims 1-4 which sprays a chemical | medical solution.   A rotating round knife that cuts individual toilet rolls from a log, which is an intermediate product of toilet rolls, that is the same diameter as the toilet roll and that is more than twice the length of the toilet roll, and a chemical solution toward the side of the round knife An apparatus for manufacturing a toilet roll having a chemical solution applied to an end face thereof, comprising: a spray application device for spraying. Round knife, a depth on the sides of 2～40Myuemu, toilet rolls of the manufacturing apparatus the chemical solution is applied to the end face of claim 6 having a large number of drug solution holding hole size 100 to 300 [mu] m ^2.

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