JP6302202B2 - Toilet roll manufacturing method with chemical solution applied to end face, toilet roll manufacturing device with chemical solution 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 particularly to a method and an apparatus for manufacturing a toilet roll in which a chemical liquid 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 a deodorizing function and aroma function to the toilet roll.

  Conventionally, as a method of manufacturing a toilet roll having a deodorizing function, etc., (1) a method of including a deodorant or a fragrance 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 was a problem of being difficult. In addition, the method (3) has a problem that the manufactured toilet roll starts to use toilet paper and the adhesive paste portion is used so that the aroma function and the deodorizing function are not continuously exhibited. It was.

  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 was a problem.

  The conventional devices as described above have problems 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 the end surface, which can continuously and stably exhibit a fragrance function or a deodorant function. It is providing the manufacturing method and manufacturing apparatus of a toilet roll which can be performed.

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, a roll is disposed so that the roll peripheral surface is in contact with the side surface of the round knife, a chemical solution is applied to the roll peripheral surface, the chemical solution is transferred from the roll peripheral surface to the side surface of the round knife, and the chemical solution is applied to the side surface. A method of manufacturing a toilet roll having a chemical solution applied to an end face, wherein the log is cut with a round knife to which is transferred, and the chemical solution is applied from a side surface of the round knife to a cut surface that contacts the log.

(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 kind provided to a roll. Moreover, since the chemical solution adhesion amount to the round knife is adjusted only by adjusting the chemical solution application amount to the roll, it is easy to adjust the chemical solution application amount to the end face.

  Furthermore, in the production method of the present invention, the round knife side surface is brought into contact with the roll peripheral surface, and the chemical solution is applied to the round knife side surface from the roll peripheral surface, so that adjustment of the interval between the roll and the round knife is performed. Or the general-purpose toilet roll which does not provide a chemical | medical solution to an end surface only by stopping the chemical | medical solution provision to a roll can be manufactured. 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, when the log is cut while transferring the chemical solution from the roll peripheral surface to the side surface of the rotating round knife, the chemical solution is continuously supplied to the side surface while the cut surface expands, so that the toilet is formed. The chemical solution is uniformly applied to the end surface of the 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 used as a deodorant or fragrance, it is possible to continuously and stably exhibit the fragrance function or deodorant function. Toilet rolls can be manufactured.

<Invention of Claim 2>
Side depth 2～40Myuemu, size 100~300μm used round knife with a large number of drug solution holding holes ^2, toilet rolls method for producing the chemical to the end surface of claim 1 wherein is granted.

(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. Accordingly, a large amount of chemical liquid can be applied to the end face, and the adjustment of the chemical liquid application amount is facilitated. 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>
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 with respect to a roll peripheral surface from a spray coating apparatus, and provides a chemical | medical solution to a roll peripheral surface.

(Function and effect)
The manufacturing method described in this section can easily change the chemical liquid type to be applied to the toilet roll end face simply by changing the chemical liquid type sprayed from the spray coating apparatus. Further, since the amount of chemical liquid attached to the round knife can be adjusted simply by adjusting the spray amount of the spray coating apparatus, the amount of chemical liquid applied to the end face can be easily adjusted.

  Furthermore, it is possible to manufacture a general-purpose toilet roll that does not apply chemicals to the end face simply by stopping the spray application device. That is, there is an advantage that it is easier 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.

<Invention of Claim 6>
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 provides a chemical | medical solution to a roll peripheral surface via a transfer roll .

(Function and effect)
In the production method described in this section, since the chemical liquid is applied to the roll peripheral surface via the transfer roll, it is easy to uniformly apply the chemical liquid to the roll peripheral surface, and the adjustment of the chemical application amount is facilitated.

<Invention of Claim 7>
A rotating round knife that cuts individual toilet rolls from logs, which are intermediate products of toilet rolls, having the same diameter as the toilet rolls and having a length that is more than twice that of the toilet rolls;
A roll arranged such that the circumferential surface of the roll is in contact with the side surface of the round knife;
The manufacturing apparatus of the toilet roll by which the chemical | medical solution was provided to the end surface provided with the chemical | medical solution provision means which provides a chemical | medical solution to this roll peripheral surface.

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

<Invention of Claim 8>
Round knife, a depth on the sides of 2～40Myuemu, toilet rolls of the manufacturing apparatus the chemical solution is applied to the end surface of claim 7 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.

<Invention of Claim 9>
9. The toilet roll manufacturing apparatus according to claim 7 or 8, wherein the chemical solution applying means is a spray coating device that sprays the chemical solution onto the roll peripheral surface.

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

<Invention of Claim 10>
The manufacturing apparatus of the toilet roll by which the chemical | medical solution was provided to the end surface of Claim 7 or 8 whose said chemical | medical solution provision means is a transfer roll which transcribe | transfers a chemical | medical solution with respect to a roll surrounding surface.

(Function and effect)
There exists an effect similar to the invention of the said Claim 6.

  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 the 1st cut form of the log cutting process which concerns on this invention. It is another explanatory drawing of the 1st cut form of the log cutting process which concerns on this invention. It is explanatory drawing of the 2nd cut form of the log cutting process which concerns on this invention. It is another explanatory view of the 2nd cut form of the log cutting process concerning the present invention. It is a figure which shows the example of chemical | medical solution provision to the roll which concerns on this invention. It is a figure which shows another example of the chemical | medical solution provision means to the roll which concerns on this invention. It is a side view of the round knife concerning the present 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 parts are piled up, spirally wound around the mandrel shaft by a core winder, pulled out from the shaft while making it cylindrical, and trimmed to a specified length according to the production type with a slitter Thus, a long cylindrical 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.

  In the present invention, a chemical solution may be applied to the paper tube. When the chemical solution is applied to the paper tube 11 in this manner, the chemical solution may be contained in the adhesive, or the paper tube You may make it apply | coat a chemical | medical solution to the tube base paper 12. FIG. 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 the toilet paper 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, two toilet paper rolls R and R are used. The toilet paper bases S1 and S1 are fed out to form a two-ply toilet paper base S2 at the overlapping portion 16, and then contact embossing and perforation lines are applied by the known contact embossing device 17 and perforation line forming device 18. After forming (not shown), the take-up device 19 makes a take-up 2-ply structure. .

  In the illustrated embodiment, toilet paper base papers S1 and S1 are drawn out from two toilet paper rolls R and R to form a two-ply structure toilet paper base paper S2 in the present invention. The ply is not limited and may be 1 ply or 3 plies or more. 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 log supply unit 32 that intermittently sends the log 20 to the 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 34 rotates, and at that time, the tip of the log 20 is cut by the width of the toilet roll L2, and the cut part 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 toilet rolls 10, 10... Cut at the same time 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.

  Here, in the manufacturing method of the toilet roll according to the present embodiment, as understood from FIGS. 3, 4, 5, and 6, the roll is rotated so that the roll peripheral surface is in contact with the side surface of the round knife 31. A flexible roll 50 is arranged, and a chemical solution is applied to the peripheral surface of the roll 50 from the chemical solution applying means 51, and the chemical solution is transferred to the side surface of the round knife 31 by the circular knife 31 being in contact with the peripheral surface of the roll. It is like that. When the log 20 is cut with the round knife 31, the chemical solution is applied to the cut surface that becomes the end face when the log roll 20 comes into contact with the side of the round knife 31 and becomes a toilet roll. 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 10.

  In this way, by transferring the chemical solution to the side surface of the round knife 31 through the roll 50, the chemical solution can be uniformly applied to the side surface of the round knife 31, and thus the chemical solution is uniformly applied to the end surface. Toilet rolls are manufactured.

  What is necessary is just to adjust suitably the application amount of the chemical | medical solution to the round knife 31 according to the chemical | medical solution amount provided to the end surface of the toilet roll 10. FIG. 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, the amount of the chemical solution applied from the chemical solution applying means 51 to the roll 50 may be adjusted in consideration of how much of the chemical solution is attached to the portion in contact with the cut surface.

  In arranging the roll 50 in this way, in the log cutter equipment X4a in the first cut form, the roll 50 is arranged at a predetermined position on the revolution trajectory of the round knife 31, and the round knife 31 passes through the roll installation position. When touching the roll surface. In the illustrated example, when the round knife 31 rotates on the revolution track, it passes between the pair of rolls 50 and 50 so that the chemical solution is transferred to both side surfaces of the round knife almost simultaneously. However, the position of the roll 50 with respect to each side surface does not necessarily need to match.

  In particular, in the log cutter facility X4a in the first cut form, since the round knife 31 performs revolution and rotation at the same time, when the round knife 31 comes into contact with the peripheral surface of the roll 50, the rotation direction of the roll 50 and its rotation direction The direction of movement of the round knife 31 does not completely match. Therefore, a certain amount of friction occurs. Therefore, the roll 50 is installed at a position where the friction is reduced while paying attention to the friction. Further, the roll 50 is not necessarily rotated, and may be rotated by movement of the circular knife 31 when the circular knife 31 passes while contacting the peripheral surface of the roll so as to freely rotate. However, it is desirable to rotate at an appropriate speed depending on the driving source. In this case, the rotation speed is appropriately set according to these speeds so that the revolution speed and rotation speed of the round knife 31 are not lowered or accelerated when the round knife 31 comes into contact with the circumferential surface of the roll.

  On the other hand, in the log cutter facility X4b according to the second cut form, the round knife itself does not move and its position is fixed at a predetermined position. The roll 50 is arranged so that the surfaces are in contact with each other. In the log cutter facility X4b according to the second cut form, when the roll 50 is installed in a positional relationship in which the rotary axis of the round knife 31 is on the extension line of the rotary axis of the roll 50 in a side view of the round knife 31, the roll peripheral surface and the round knife The friction with 31 is the smallest. Therefore, it is desirable to install the roll 50 in such a positional relationship. About rotation of the roll 50, it is the same as that of the 1st cut form, and does not necessarily need to rotate, It can be made to rotate by rotation of the round knife 31 so that it may rotate freely. Preferably, it is rotated at an appropriate speed by the driving source. The rotation speed in this case is appropriately set according to the rotation speed of the round knife 31 so that the rotation speed of the round knife 31 is not lowered or accelerated when the round knife 31 contacts the roll circumferential surface.

  On the other hand, as the chemical solution applying means 51 for applying the chemical solution to the roll peripheral surface of the roll 50 according to the present embodiment, a spray coating device 51a can be exemplified as shown in FIGS. If the spray coating device 51a is used, the chemical solution may be sprayed and applied to the peripheral surface of the roll. The weight average particle diameter of the mist droplets sprayed from the spray coating device 51a is preferably 20 to 150 μm. Further, as the type of the spray application device 51a, a two-fluid type nozzle spray method, a rotor dampening spray method, or the like is desirable. More preferably, it is a rotor dampening spray system. 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 addition, if the chemical liquid is applied to the peripheral surface of the roll 50 by using the spray coating apparatus 51a in this way, in order to prevent unintentional scattering of the chemical liquid around the spray coating apparatus, particularly as shown in FIG. It is preferable to provide a box-shaped cover 52 so as to cover the periphery of 51 a and the roll 50. If the cover 52 is provided in this manner, the top plate 52a and the bottom plate 52b are inclined by 5 to 10 ° as shown in the figure, and a drain hole 52c is provided at the lowest position of the bottom plate 52b. It is desirable that the chemical solution adhering to the inner surface of the cover by scattering can be collected from the drain hole 52c along the inner peripheral surface of the box. The collected chemical solution may be appropriately processed and reused.

  Moreover, as the chemical | medical solution provision means 51 which provides a chemical | medical solution to the roll surrounding surface which concerns on this embodiment, as shown in FIG. 8, it can provide so that a chemical | medical solution may be transcribe | transferred to the roll 50 via the transfer roll 53. . In this case, a known roll transfer technique of a doctor chamber type or a two-roll type using a pickup roll or a three-roll type can be employed. The illustrated form is an example of a doctor chamber system, in which a chemical solution is supplied from a doctor chamber (chemical solution tank) 54 in which a chemical solution is continuously circulated and supplied by a pump means (not shown) to an anilox roll as a transfer roll 53, The chemical solution is transferred from the anilox roll 53 to the roll 50 and applied. The number of lines and the number of cells of the transfer roll 53 can be appropriately designed according to the amount of the chemical transferred to the roll. This method has an advantage that the amount of the chemical applied to the side surface of the round knife 31 can be adjusted in detail by designing the number of cells and the number of lines of the transfer roll 53.

  On the other hand, it is desirable that the roll 50 according to the log cutter facility X4a, X4n according to the present embodiment is an elastic roll whose surface has elasticity. As the elastic roll, it is desirable that the surface material is composed of a rubber material, a sponge material, and a non-woven material, which are excellent in chemical resistance and wear resistance. Examples of the rubber material having excellent chemical resistance and wear resistance include chlorosulfonated polyethylene rubber and butyl rubber. By using the elastic roll as described above, when contacting the side surface of the round knife, sufficient contact with the side surface of the round knife can be ensured and heat generated by wear or friction of the round knife can be reduced. In particular, when an elastic roll having a surface made of a sponge material or a nonwoven fabric material is used, the chemical solution can be reliably transferred from the roll 50 having excellent chemical solution retention to the round knife, and the contact pressure between the round knife 31 and the roll 50 is improved. Can be greatly reduced, and friction can be reduced. In particular, when the rotational direction of the roll 50 and the moving direction of the round knife 31 do not completely coincide as in the first cut form, it is effective in terms of friction reduction to be configured with such a sponge material. .

  Further, the amount of chemical applied to the roll 50 can be controlled in detail by forming grooves of an appropriate pattern on the surface of the rubber material in the elastic roll or by appropriately adjusting the density of the sponge material.

  On the other hand, in the present embodiment, the roll 50 is preferably configured so that the distance between the side surfaces of the round knife 31 can be adjusted so that contact or non-contact between the round knife 31 and the roll 50 can be selected. desirable. If it does in this way, it will become possible to switch easily the toilet roll which provided the chemical | medical solution easily, and the manufacture of the toilet roll which does not provide a chemical | medical solution.

Here, in the log cutter equipment X4a and X4b according to the present embodiment, the number of plies is 1 to 3, and the basis weight per ply is 10 to 25 g / m ² and the thickness is 80 to 250 μm. If a log related to a general toilet roll having a diameter (diameter) of 100 to 120 mm, a core diameter of 10 to 48 mm, and a winding length of 20 to 100 m is cut, the peripheral speed of the circular knife 31 is 860 to 1260 m. / Min is desirable. If it is this speed, a chemical | medical solution can be made to adhere suitably from the roll 50 to the side surface of the round knife 31, and the log 20 can also be cut | disconnected suitably. 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 where the chemical solution on the side surface of the round knife 31 is attached, that is, the contact position with at least the portion of the roll 50 to which the chemical solution is applied, is 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. .

  The size of the roll 50 can be appropriately designed according to the size of the round knife 31, etc. If the round knife has the above size, the roll 50 has a width of 100 to 200 mm and a diameter of 50 to 200 mm. Is desirable. If a width | variety is 100-200 mm, a chemical | medical solution can be suitably made to adhere from a round knife to a toilet roll cut surface without waste. When the diameter is less than 50 mm, the chemical solution is scattered, and when the diameter is 200 mm or more, it is not preferable for installation of the equipment.

On the other hand, since the side surface of the round knife 31 is in contact with the cut surface, the side surface is usually substantially flat. Naturally, the round knife 31 according to the present embodiment does not have excessive unevenness. However, in the round knife 31 of this embodiment, as shown in FIG. 9, in order to improve the adhesion and retention of the chemical solution to the side surface, a large number of chemical solution holdings with a depth of 2 to 40 μm and a size of 100 to 300 μm ² are provided on the side surface. Holes 60, 60 ... can 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 hole 60 is 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. When the chemical solution holding holes 60, 60... Are provided, the upper edge of each chemical solution holding hole 60, 60... Is chamfered so as to reduce the friction between the side surface of the round knife 31 and the roll and the cut surface. It is desirable to make it.

  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.

  The roll 50 is desirably installed at a position where the chemical solution can be continuously applied to 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. The distance between the log peripheral surface and the cutting edge of the round knife is preferably a position where the linear distance is 150 to 250 mm.

  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 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, the viscosity can be adjusted and suitable for spray coating and roll transfer is a chemical solution having a solid content of 1 to 500 CPS. Particularly preferable from such a viewpoint is a polyphenol-based deodorant mainly composed of polyphenols. The polyphenol-based deodorant is mainly composed of polyphenols extracted from plants and processed products of plants, and derivatives of the polyphenols, and against ammonia which is one of the main malodorous components present in the toilet space. High deodorant 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 one containing either polyphenol or polyphenol derivative, and may contain both. Moreover, several types of polyphenols and polyphenol derivatives may be included.

  In particular, tannin and its derivatives are desirable among polyphenols. 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 flavors 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.

  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 · atm.

DESCRIPTION OF SYMBOLS 10 ... Toilet roll, S3 ... Toilet paper, 14 ... End face, 20 ... Log, L1 ... Toilet roll diameter (winding diameter), L2 ... Toilet roll width, 11 ... Paper tube, 15 ... Long paper tube, 12 ... Paper tube base paper, 2 ... Raw paper roll, 13 ... Glue roll, S1 ... Toilet paper base paper, R ... Toilet paper base paper roll, X2 ... Winder device, 16 ... Overlapping unit, S2 ... 2-ply toilet paper base paper, 17 ... Contact embossing device, ◇
18 ... Perforation device, 19 ... Winding device, X3 ... Log accumulator, ◇
X4, X4a, X4b ... log cutter equipment, 31 ... round knife, 32 ... log supply means, 33 ... clamp, 30 ... cutter, 34 ... arm, 35 ... rotating shaft, 36 ... rotating shaft, 41 ... conveyor means, 10C ... Log end portions 50 ... roll, 51 ... chemical solution applying means, 51a ... spray coating apparatus, 52 ... cover, 52a ... top plate of cover, 52b ... bottom plate of cover, 52c ... drain hole, 53 ... transfer roll, 54 ... chemical solution tank 60 ... Chemical solution holding hole.

Claims (10)

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, a roll is disposed so that the roll peripheral surface is in contact with the side surface of the round knife, a chemical solution is applied to the roll peripheral surface, the chemical solution is transferred from the roll peripheral surface to the side surface of the round knife, and the chemical solution is applied to the side surface. A method of manufacturing a toilet roll having a chemical solution applied to an end face, wherein the log is cut with a round knife to which is transferred, and the chemical solution is applied from a side surface of the round knife to a cut surface that contacts the log. Side depth 2～40Myuemu, size 100~300μm used round knife with a large number of drug solution holding holes ^2, toilet rolls method for producing the chemical to the end surface of claim 1 wherein is granted.   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.   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 with respect to a roll peripheral surface from a spray coating apparatus, and provides a chemical | medical solution to a roll peripheral surface. The manufacturing method of the toilet roll with which the chemical | medical solution was provided to the end surface of any one of Claims 1-4 which provides a chemical | medical solution to a roll surrounding surface via a transfer roll . A rotating round knife that cuts individual toilet rolls from logs, which are intermediate products of toilet rolls, having the same diameter as the toilet rolls and having a length that is more than twice that of the toilet rolls;
A roll arranged such that the circumferential surface of the roll is in contact with the side surface of the round knife;
The manufacturing apparatus of the toilet roll by which the chemical | medical solution was provided to the end surface provided with the chemical | medical solution provision means which provides a chemical | medical solution to this roll peripheral surface. Round knife, a depth on the sides of 2～40Myuemu, toilet rolls of the manufacturing apparatus the chemical solution is applied to the end surface of claim 7 having a large number of drug solution holding hole size 100 to 300 [mu] m ^2.   9. The toilet roll manufacturing apparatus according to claim 7 or 8, wherein the chemical solution applying means is a spray coating device that sprays the chemical solution onto the roll peripheral surface. The manufacturing apparatus of the toilet roll by which the chemical | medical solution was provided to the end surface of Claim 7 or 8 whose said chemical | medical solution provision means is a transfer roll which transcribe | transfers a chemical | medical solution with respect to a roll surrounding surface.

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