JP6229897B2 - Toilet paper manufacturing method - Google Patents

Description

  The present invention relates to a method for manufacturing toilet paper that does not include a core material made of cardboard or the like.

Since ancient times, toilet paper has been rolled up so as to have a flexible feeling of use, and has been provided with a paper tube formed into a tubular shape using cardboard or the like.
On the other hand, many toilet papers without a core have been manufactured recently in order to eliminate the need to discard the paper tube after the toilet paper has been used up.

The coreless toilet paper has been manufactured with a small diameter hole in the center of the roll, but it is desired that it can be used together with toilet paper having a paper tube such as cardboard, and the hole has the same diameter as the paper tube. What has formed is becoming common.
When producing toilet paper without a core, for example, by spraying water on the winding start portion of the paper and winding the sprayed paper so that it becomes a multi-layer, a core having the same hole diameter as a paper tube such as cardboard Some have formed a part (see, for example, Patent Document 1).
By forming the core part in this way, it is possible to use all of the roll shape or the vicinity of the core part as toilet paper.

JP 2012-50475 A

The toilet paper without a core maintains the shape only in the rigidity of the paper laminated by winding in the width direction of the roll shape. Therefore, the hole at the center of the roll is relatively easily crushed, and when the use of paper is advanced and the roll diameter is reduced, the rigidity is weakened, and the roll shape axis is bent and deformation such as distortion is likely to occur.
In particular, when the hole diameter at the center of the roll is large, the above deformation is likely to occur, and when the paper is pulled out by attaching it to a one-touch type holder that holds only the left and right ends of the toilet paper, the entire roll There was a problem that it was easy to come off.

  The present invention has been made to solve the above-described problem, and maintains the roll shape without falling off when installed in a one-touch type holder or the like even if it does not have a paper tube such as cardboard. It aims at providing the toilet paper manufacturing method provided with rigidity.

The toilet paper manufacturing method according to the present invention is a toilet paper manufacturing method having a process of transporting paper by a transporting means and a process of winding the transported paper onto a winding shaft, and winding the paper The process of winding onto the shaft includes a process in which the first adhesive supply means applies the first adhesive to the first range of the paper being transported, and a process of the paper being transported following the first range. A process in which the second adhesive supply means applies the second adhesive to two ranges, and a process in which the paper to which the first adhesive and the second adhesive are applied is sequentially formed on the winding shaft in the form of a winding roll. In the process of applying the first adhesive, the second adhesive is used to harden the wound paper so as not to be loosened. Process of coating, using the second adhesive to solidify enough to peel the wound was paper, the first range, from the winding start portion of the paper, to the winding shaft 5 rotated 10 rotates the range to be wound Te, the second range, the continuous with the first range, the range der Rukoto that the winding shaft is wound until the 10 to rotate after the winding start 15 the rotation of the paper Features.

  According to this invention, the hole at the center of the roll can be formed sufficiently firmly, and the entire roll can be prevented from falling off when the paper is pulled out from a one-touch type holder or the like.

It is explanatory drawing which shows schematic structure of the manufacturing apparatus using the toilet paper manufacturing method by the Example of this invention. It is explanatory drawing which shows the toilet paper manufactured with the manufacturing apparatus of FIG. It is explanatory drawing which shows the toilet paper manufactured with the manufacturing apparatus of FIG.

  An embodiment of the present invention will be described below.

(Example)
FIG. 1 is an explanatory diagram showing a schematic configuration of a manufacturing apparatus using a toilet paper manufacturing method according to an embodiment of the present invention. This figure shows a part of a manufacturing apparatus 1 that manufactures a so-called coreless toilet paper that is not provided with a paper tube made of cardboard or the like.
The manufacturing apparatus 1 has a shaft (winding shaft) 11 around which the paper 21 conveyed by a conveying means (not shown) is wound, a winding that is arranged below the shaft 11 and winds the conveyed paper 21 around the shaft 11. A roller 12 and a take-up roller 13 are provided. The paper 21 has water breakability.

Further, the manufacturing apparatus 1 includes a pressure roller 14 that is disposed above the shaft 11 and presses the paper 21 wound around the shaft 11 to apply a predetermined tension to perform winding. The pressure roller 14 is movably supported by a support means (not shown), and is configured to apply a predetermined pressure in response to a change in the outer diameter of the roll due to the winding of the paper 21. .
In addition, the manufacturing apparatus 1 cuts and winds the first adhesive supplier 15 that supplies the first adhesive, the second adhesive supplier 16 that supplies the second adhesive, and the paper 21 that is wound around the shaft 11. A paper cutter 17 and the like for forming a take-off end portion are provided.

Further, for example, the feeding roller 23, the feeding roller 24, a guide or a roller (not shown), and the like are configured such that the above-described transporting unit feeds the continuous paper 21 from the raw fabric 20 and transports it to the shaft 11. ing.
In addition, instead of the raw fabric 20, the feeding roller 23, the feeding roller 24, etc., a paper machine having a wire part, a press part, a dryer part, etc. is provided, and a paper 21 generated by the paper machine is transported by a shaft 11 or the like. The structure which conveys to may be sufficient.
Here, a configuration in which the original fabric 20 is installed at a predetermined portion, the paper 21 is fed from the original fabric 20 and wound around the shaft 11 will be described as an example.

The first adhesive supply device 15 and the second adhesive supply device 16 described above are disposed in the middle of transporting the paper 21 from the original fabric 20 to the shaft 11. For example, from above the paper 21 being transported, Each adhesive is installed so as to be sufficiently applied in the width direction of the paper 21.
Further, the first adhesive supply unit 15 and the second adhesive supply unit 16 are connected and configured such that the operation of applying each adhesive is controlled by, for example, a control unit (not shown).

Next, the operation will be described.
When the original fabric 20 is installed at a predetermined position, and the feeding roller 22 and the feeding roller 23 rotationally drive the original fabric 20, the paper 21 is delivered from the original fabric 20, and the shaft 11, the take-up roller 12 and the winding roller are fed by the above-mentioned conveying means. It is conveyed toward the take-up roller 13 (in the direction indicated by arrow a in the figure).

When the winding start portion of the paper 21 fed out from the original fabric 20 is conveyed to the lower side of the first adhesive supply device 15, the above-described control means controls the first adhesive material supply device 15 to control the paper 21. The first adhesive is applied until a predetermined length passes from the winding start portion.
Specifically, the first adhesive is applied in a range where the shaft 11 is wound up, for example, from the beginning of winding to the fifth to tenth rotations. When the first adhesive is dried, the laminated paper 21 is cured and hardened so as not to be loosened.

The paper 21 coated with the first adhesive passes through the upper ends of the take-up roller 12 and the take-up roller 13, is wound around the shaft 11 with the application surface of the first adhesive as the take-up inner side, and the pressure roller 14. Are stacked while pressure is applied.
In addition, when starting the winding of the paper 21, the front and back of the most advanced portion of the winding start is folded back so that the application surface of the first adhesive does not directly contact the surface of the shaft 11, and the portion to be wound thereafter As described above, the winding may be continued with the application surface of the first adhesive as the winding inner side as described above.

The aforementioned control means controls the second adhesive supply device 16 to apply the second adhesive continuously to the end portion of the range where the first adhesive is applied.
The second adhesive has an adhesive property that allows the portion of the paper 21 wound up in a roll shape to be laminated into a tubular shape and allows the portion thus hardened to be loosened into a thin paper shape.
In other words, the second adhesive has such an adhesive strength that the tubular portion that has been wound and hardened can be peeled off by the tentacles, and the adhesive strength is weaker than that of the first adhesive.

The second adhesive is, for example, a range in which the shaft 11 is wound up to the 10th to 15th rotation from the start of winding so that the second adhesive is not overlaid on the first adhesive. To be applied.
Specifically, for example, when the first adhesive is applied in the range from the winding start to the fifth rotation, the second adhesive is applied in the range from the fifth rotation to the tenth rotation.
Further, for example, when the first adhesive is applied in the range from the start of winding to the 10th rotation, the second adhesive is applied in the range from the 10th rotation to the 15th rotation.
As described above, the paper 21 coated with the first adhesive is wound around the shaft 11, and subsequently the paper 21 coated with the second adhesive is sequentially wound to form a roll corresponding to a two-layer paper tube. A (tubular) part is formed.

Following the portion to which the second adhesive is applied, the paper 21 to which the adhesive or the like is not applied is sequentially wound while applying a predetermined pressure by the pressure roller 14.
When the paper roll 10 formed on the shaft 11 reaches a predetermined diameter by continuing the winding of the paper 21, the aforementioned control means drives the paper cutter 17 and is conveyed to the winding roller 12 or the like. The paper 21 is cut.
The edge of the cut paper 21 (the part located on the take-up roller 12 side) is coated with an adhesive or the like having a weak adhesive force by an application means (not shown) or sprayed with an appropriate amount of water. 21 is fixed to the outer peripheral surface of the paper roll 10.

In this manner, the paper 21 having a predetermined length is wound around the shaft 11, and the paper 21 is cut as described above to complete the formation of the paper roll 10. Thereafter, the shaft 11 around which the paper roll 10 is wound is removed from the part of the manufacturing apparatus 1 where the winding roller 12 and the winding roller 13 are arranged.
Further, the shaft 11 is pulled out from the paper roll 10 and is attached and installed at a portion where the take-up roller 12, the take-up roller 13 and the like are again arranged, for example.

2 and 3 are explanatory views showing toilet paper manufactured by the manufacturing apparatus of FIG.
FIG. 2 is a front view of the end portion of the paper roll 10 manufactured by the manufacturing apparatus 1, and shows a state where the shaft 11 is pulled out from the paper roll 10.
A hole 30 serving as a central hole of the paper roll 10 is formed in a portion where the shaft 11 is pulled out, and a first core portion 40 and a second core portion 41 constituting the wall surface of the hole portion 30 are formed.
The first core portion 40 is a portion hardened by applying the first adhesive as described above, and the second core portion 41 hardened by applying the second adhesive is formed on the outer peripheral side thereof.
In addition, on the outer peripheral side of the second core portion 41, a paper 21 that becomes a thin paper shape when wound out from a roll shape is wound, and the first adhesive and the second adhesive are dried and solidified, A tubular portion corresponding to a two-layer paper tube is formed on the shaft portion of the paper roll 10.

FIG. 3 is a perspective view of the paper roll 10 manufactured by the manufacturing apparatus 1.
By laminating and forming the first core portion 40 and the second core portion 41 as described above, the paper roll 10 has sufficient rigidity in the roll width direction and generates appropriate strength on the peripheral wall of the hole portion 30. I am letting.
The roll width of the paper roll 10 is equivalent to the width size of the original fabric 20, and is cut into round pieces by a cutting means or the like not shown at the positions of the respective cutting portions 50 indicated by broken lines in FIG. A plurality of toilet paper rolls are formed from the paper roll 10 by this cutting process.

  As described above, when the paper roll 10 is cut into a ring shape, a stress that crushes the hole 30 acts. By providing the first core portion 40 and the second core portion 41, the hole portion 30 is prevented from being deformed by the stress at the time of cutting, and preferably, the sectional shape and the hole of each toilet paper roll after cutting are prevented while preventing deformation. It becomes possible to maintain the part 30 in a perfect circle or a shape approximating a perfect circle.

As described above, according to the present embodiment, since the first core portion 40 solidified by the first adhesive and the second core portion 41 solidified by the second adhesive are laminated, the roll-shaped distortion and shaft Can be suppressed. In particular, when it is mounted on a one-touch type holder or the like, it can be prevented from falling off the holder or the like.
Moreover, since the 1st core part 40 and the 2nd core part 41 were formed with the paper 21 which breaks down, these core parts can be poured into a toilet, and the effort which discards separately can be saved.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 10 Paper roll 11 Shaft 12 Winding roller 13 Winding roller 14 Pressure roller 15 1st adhesive supply device 16 2nd adhesive supply device 17 Paper cutter 20 Original fabric 21 Paper 23 Feeding roller 24 Feeding roller 30 Hole Part 40 first core part 41 second core part 50 cutting part

Claims (1)

A process for transporting paper by a transport means, and a process for winding the transported paper onto a winding shaft, the method for producing toilet paper,
The process of winding the paper onto the winding shaft
A process in which the first adhesive supply means applies the first adhesive to the first range of the paper being transported;
A process in which the second adhesive supply means applies the second adhesive to the second range of the paper that is subsequently conveyed after the first range;
Forming the first adhesive as well as the paper coated with the second adhesive in the form of a winding roll on the winding shaft sequentially;
Including
The process of applying the first adhesive comprises:
Using the first adhesive that hardens the wound paper so that it does not come loose,
The process of applying the second adhesive comprises:
Using the second adhesive that hardens the wound paper so that it can be peeled off ,
The first range is:
From the winding start portion of the paper, the winding shaft is wound around 5 to 10 rotations,
The second range is:
The continuous with the first range, area by der that the winding shaft is wound until the 15 rotating to no winding start after 10 rotation of the paper,
Toilet paper manufacturing method characterized by the above.

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