JP2017148620A - Manufacturing method of toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a toothbrush in which a step of attaching a toothbrushing part to a handle part is not necessary.SOLUTION: A manufacturing method of a toothbrush 1 including a handle part 10 and a toothbrushing part 20 consisting of a plurality of linear strips 22 comprises a preparation step, a pressing step and a slitting step. The preparation step is a step of preparing a paper shaft 30 in which a tip part 32 becomes the toothbrushing part 20 and the remnant part 34 becomes the handle part 10. The pressing step is a step of pressing the tip part 32 in a direction perpendicular to an extension direction of the tip part 32 so that the tip part 32 of the paper shaft 30 prepared by the preparation step is deformed into the platy shape. The slitting step is a step of cutting the tip part 32 deformed into the platy shape by the pressing step in a direction perpendicular to the width direction thereof to separate the tip part 32 into the linear strips 22.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a method of manufacturing a toothpaste for brushing teeth.

  As a conventional toothpaste, there is one described in Patent Document 1, for example. The toothbrush described in the document includes a handle portion and a brush portion. The handle part is formed by connecting two rectangular cardboards via a folding mechanism. The brush part is attached to the tip of the handle part.

JP 2005-110727 A

  In the above-described toothpaste, the brush part functions as a toothbrushing part for brushing teeth. That is, the teeth can be brushed by holding the handle portion in the hand and rubbing the teeth with the brush portion. However, in order to manufacture this toothpaste, a step of attaching the toothpaste portion to the handle portion is required. Existence of such a process becomes a factor that causes complication of the manufacturing process of the toothpaste.

  This invention is made | formed in view of the said subject, and it aims at providing the manufacturing method of the toothpaste which does not require the attachment process of the toothpaste part with respect to a handle | pattern part.

  A method for manufacturing a toothpaste according to the present invention is a method for manufacturing a toothpaste having a handle part and a toothpaste part composed of a plurality of filaments, wherein the tip part becomes the toothpaste part and the remaining part becomes the handle part. A preparatory step for preparing a shaft, and a pressing for pressing the tip from a direction perpendicular to the extending direction of the tip so that the tip of the paper shaft prepared in the preparation step is deformed into a plate shape And a cutting step of dividing the tip portion into the plurality of filaments by cutting the tip portion deformed into a plate shape in the pressing step in a direction perpendicular to the width direction of the tip portion. Features.

  In this manufacturing method, a paper shaft constituting both the handle portion and the tooth brushing portion is prepared. The tip of the paper shaft is deformed into a plate shape by being pressed from a direction perpendicular to the extending direction of the tip. Then, the front-end | tip part deform | transformed into plate shape is cut | disconnected perpendicularly | vertically with the width direction of the said front-end | tip part, and the said front-end | tip part is divided | segmented into a some filament. In this way, the tip of the paper shaft divided into a plurality of filaments becomes a tooth brushing portion, and the remaining portion of the paper shaft becomes a handle portion. For this reason, the toothpaste which has a handle | pattern part and a toothpaste part can be obtained, without performing the process of attaching a toothpaste part with respect to a handle | pattern part.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the toothpaste which does not require the attachment process of the toothpaste part with respect to a handle | pattern part is implement | achieved.

It is a side view which shows one Embodiment of the toothpaste by this invention. It is a perspective view which shows the paper shaft 30 prepared in a preparation process. It is a perspective view which shows the paper shaft 30 by which the rear end part 36 was processed in the manufacturing process. It is a side view for demonstrating the blade 52 used in a cutting process. 3 is a side view showing a state in which a blade 52 is inserted into the tip end portion 32 of the paper shaft 30. FIG. It is a front view which shows the front-end | tip part 32 after cut | disconnecting with the blade 52. FIG. It is a side view for demonstrating the flat plate 54 used in a press process. FIG. 6 is a side view showing a state in which a distal end portion 32 is sandwiched between flat plates 54. It is a top view which shows the paper shaft 30 in which the front-end | tip part 32 deform | transformed into plate shape. It is sectional drawing which shows the state in which the paper shaft 30 was accommodated in the fixing tool 40 in the cutting process. It is sectional drawing for demonstrating the blade 56 used in a cutting process. FIG. 6 is a cross-sectional view showing a state in which a blade 56 is inserted into the tip end portion 32 of the paper shaft 30. FIG. 6 is a front view showing the distal end portion 32 after being cut by a blade 56. It is a top view which shows the paper shaft 30 by which the front-end | tip part 32 was divided | segmented into the several filament 22 in the cutting process. It is sectional drawing for demonstrating the shaping tool 60 used in a shaping process. FIG. 6 is a cross-sectional view showing a state in which the paper shaft 30 is passing through the shaping tool 60. FIG. 6 is a cross-sectional view showing a state after the paper shaft 30 has passed through the shaping tool 60. It is a side view for demonstrating the modification of the manufacturing method of the toothpaste.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

  FIG. 1 is a side view showing an embodiment of a toothpaste according to the present invention. The toothpaste 1 includes a handle portion 10 and a toothpaste portion 20. The handle portion 10 is a portion that the user of the toothpaste 1 has by hand. The handle 10 has a round bar shape. A brushing portion 20 is provided on one end side of the handle portion 10. The other end portion of the handle portion 10 has a tapered shape. The handle part 10 and the toothbrushing part 20 are entirely composed of a single sheet of paper. In other words, one paper sheet forms both the handle portion 10 and the toothpaste portion 20.

  The toothbrushing part 20 is a part for brushing teeth. The toothpaste part 20 consists of a plurality of filaments 22. Each filament 22 is constituted by an elongated paper piece that is a part of the paper sheet. A piece of paper constituting each filament 22 is continuous with the handle 10. That is, the plurality of filaments 22 are branched from one end of the handle 10. The toothbrushing part 20 may be impregnated or attached in advance with an oral medicine (for example, toothpaste). The drug may be in the form of liquid, paste, gel, or powder.

  With reference to FIGS. 2 to 17, an example of a method of manufacturing the toothpaste 1 will be described as an embodiment of the method of manufacturing the toothpaste according to the present invention. This manufacturing method includes a preparation process, a processing process, a cutting process, a pressing process, a cutting process, and a shaping process.

  The preparation step is a step of preparing the paper shaft 30 (see FIG. 2). The paper shaft 30 is formed by rounding a rectangular paper sheet into a rod shape. In this step, the paper shaft 30 may be formed by rolling a paper sheet into a rod shape, or a ready-made paper shaft 30 may be procured. The paper shaft 30 includes a tip portion 32 that is a portion having a certain length from the tip, and a remaining portion 34 that is a portion other than the tip portion 32. However, the length d1 of the distal end portion 32 is smaller than the length d2 of the remaining portion 34. The length d1 of the distal end portion 32 is, for example, about 5 to 15 mm. The length d2 of the remaining portion 34 is, for example, about 55 to 75 mm. Further, the thickness d3 (diameter) of the paper shaft 30 is, for example, about 1.5 to 4 mm. In the paper shaft 30, the tip end portion 32 becomes the tooth brushing portion 20, and the remaining portion 34 becomes the handle portion 10. The paper shaft 30 may be waterproofed or water-repellent as necessary.

  The processing step is a step of processing the rear end portion 36 of the paper shaft 30 prepared in the preparation step into a tapered shape (see FIG. 3). The rear end portion 36 is a portion having a certain length from the rear end of the paper shaft 30. The rear end portion 36 constitutes a part of the remaining portion 34. For example, the rear end portion 36 can be processed into a tapered shape by cutting the rear end portion 36 of the paper shaft 30 with a blade. Specifically, for example, the paper shaft 30 may be fixed in a groove, and the rear end portion 36 may be cut with a p-blade (p is an integer of 2 or more and 5 or less) that rotates at high speed. The surface of the rear end portion 36 may be polished after cutting.

  The said process may be performed by grinding the rear-end part 36 with an abrasive | polishing material, and may be performed by pressing the rear-end part 36 against a type | mold. When grinding with an abrasive, it is preferable to use a plurality of abrasives with different eye roughness. For example, it is conceivable to grind the rear end portion 36 with a relatively finer second abrasive after grinding the rear end portion 36 with a relatively coarser first abrasive. In addition, the third abrasive having a finer grain than the first abrasive and having a coarser grain than the second abrasive, the first abrasive, the third abrasive, and the second abrasive You may grind the rear-end part 36 in order. For example, sandpaper may be used as the abrasive.

  The cutting step is a step of cutting the leading end portion 32 of the paper shaft 30 prepared in the preparing step in parallel with the extending direction of the leading end portion 32. In the present embodiment, a plurality of locations on the tip 32 of the paper shaft 30 are cut simultaneously. This cutting process is performed prior to the pressing process.

  In the cutting step, for example, the tip 32 is cut using two blades 52 (see FIG. 4). These blades 52 are arranged in parallel to each other. Each blade 52 moves in a plane parallel to the extending direction of the distal end portion 32 (left-right direction in FIG. 4). The blade 52 may cut the tip 32 while reciprocating, or may cut the tip 32 while rotating.

  As shown in FIG. 5, two blades 52 are simultaneously inserted into the tip end portion 32 of the paper shaft 30, and the tip end portion 32 is cut parallel to the extending direction. As a result, as shown in FIG. 6, two cut ends C <b> 1 and C <b> 2 are formed at the tip end portion 32. The cut C1 and the cut C2 are parallel to each other. These cut edges C1 and C2 are present at positions that divide the tip 32 into three equal parts.

  The pressing step is a step of pressing the leading end portion 32 from a direction perpendicular to the extending direction of the leading end portion 32 so that the leading end portion 32 of the paper shaft 30 prepared in the preparing step is deformed into a plate shape. Specifically, the distal end portion 32 is pressed from a direction perpendicular to the cut surface of the distal end portion 32 cut in the cutting step. At this time, it is preferable to press the tip 32 so that the width of the tip 32 is at least twice the width (diameter) of the remaining portion 34.

  In the pressing step, the tip 32 is pressed using two flat plates 54 (see FIG. 7). These flat plates 54 are arranged in parallel to each other. These flat plates 54 are also parallel to the cut edges C1 and C2. One flat plate 54 is positioned above the tip end portion 32, and the other flat plate 54 is positioned below the tip end portion 32.

  As shown in FIG. 8, the flat plates 54 are moved so as to approach each other, and the tip portion 32 is sandwiched. In this way, the leading end 32 of the paper shaft 30 is pressed between the two flat plates 54 from the direction perpendicular to the extending direction of the leading end 32, thereby pressing the leading end 32. Thereby, as shown in FIG. 9, the front-end | tip part 32 is crushed and deform | transforms into plate shape.

  The cutting step is a step of dividing the tip 32 into a plurality of filaments 22 by cutting the tip 32 deformed into a plate shape in the pressing step perpendicular to the width direction of the tip 32. In the present embodiment, a plurality of locations of the tip 32 are cut simultaneously. This cutting process is performed after the machining process.

  In the cutting process, the tip 32 is cut in a state where the paper shaft 30 is accommodated in the fixture 40 (see FIG. 10). The figure shows a cross section including the central axis of the fixture 40. Only the remaining portion 34 of the paper shaft 30 is accommodated in the fixture 40. That is, the cutting of the distal end portion 32 is performed in a state where the entire distal end portion 32 is exposed from the fixture 40.

  The fixture 40 has a cylindrical shape, and accommodates and fixes the paper shaft 30. Specifically, the fixture 40 has a cylindrical shape, and the inner diameter thereof is substantially equal to the thickness d3 of the paper shaft 30. The paper shaft 30 is accommodated in the fixture 40 so that the central axis of the paper shaft 30 and the central axis of the fixture 40 coincide with each other, whereby the paper shaft 30 is fixed to the fixture 40.

  Furthermore, in the cutting process, the front-end | tip part 32 is cut | disconnected using the blade 56 (refer FIG. 11). In the present embodiment, a plurality (specifically, six) blades 56 are provided. These blades 56 are arranged in parallel to each other. Each blade 56 moves in a plane perpendicular to the width direction of the tip portion 32 (the vertical direction in FIG. 11). The blade 56 may cut the tip portion 32 while reciprocating, or may cut the tip portion 32 while rotating.

  As shown in FIG. 12, six blades 56 are simultaneously inserted into the tip end portion 32 of the paper shaft 30, and the plate-like tip end portion 32 is cut perpendicularly to the width direction thereof. As a result, as shown in FIG. 13, six cut ends C <b> 3 to C <b> 8 are generated at the distal end portion 32. The figure is a view of the distal end portion 32 after being cut by the blade 56 as seen from the direction of the central axis of the fixture 40. These cut edges C3 to C8 are parallel to each other. In addition, the cut edges C3 to C8 are perpendicular to the cut edges C1 and C2 generated in the cutting process. The cut edges C3 to C8 are present at positions that divide the tip 32 into seven equal parts in the width direction. Thus, the front-end | tip part 32 is divided | segmented into the some filament 22 by cut | disconnecting (refer FIG. 14). Thereafter, if necessary, shavings and the like adhering to the filament 22 are removed. For this removal, for example, a blower that injects air can be used.

  The shaping step is a step of shaping the leading end portion 32 of the paper shaft 30 so that the extending directions of the plurality of filaments 22 are aligned. This shaping process is performed after the cutting process. In the shaping step, the tip 32 is shaped using the shaping tool 60 (see FIG. 15). The shaping tool 60 has a cylindrical shape. Specifically, the shaping tool 60 has a tapered shape with a diameter that gradually decreases from the inlet 60a toward the outlet 60b. Thereby, in the shaping tool 60, the diameter of the exit 60b is smaller than the diameter of the inlet 60a. The diameter of the outlet 60b is substantially equal to the thickness d3 of the paper shaft 30. As shown in FIGS. 16 and 17, when the paper shaft 30 is passed through the shaping tool 60 from the rear end portion 36 side, the force is received from the shaping tool 60 when the leading end portion 32 passes through the outlet 60b. Thereby, the front-end | tip part 32 is shaped so that the extending direction of the some filament 22 may align. Thus, the toothpaste 1 shown in FIG. 1 is obtained. The toothpaste 1 is packed in a packaging bag one by one or a plurality as needed. Prior to packing the toothpaste 1 in a packaging bag, the toothpaste 1 may be sterilized.

  The effect of this embodiment will be described. In the manufacturing method of this embodiment, the paper shaft 30 which comprises both the handle | pattern part 10 and the toothbrushing part 20 is prepared. The front end portion 32 of the paper shaft 30 is deformed into a plate shape by being pressed from a direction perpendicular to the extending direction. Thereafter, the tip portion 32 deformed into a plate shape is cut perpendicularly to the width direction, whereby the tip portion 32 is divided into a plurality of filaments 22. Thus, the tip end portion 32 of the paper shaft 30 divided into the plurality of filaments 22 becomes the tooth brushing portion 20, and the remaining portion 34 of the paper shaft 30 becomes the handle portion 10. For this reason, the toothbrush 1 which has the handle | pattern part 10 and the toothpaste part 20 can be obtained, without performing the process of attaching the toothpaste part 20 with respect to the handle | pattern part 10. FIG. Therefore, the manufacturing method of the toothpaste 1 which does not need the attachment process of the toothpaste part 20 with respect to the handle | pattern part 10 is implement | achieved.

  Further, the paper shaft 30 has a structure in which paper sheets are overlapped several times. Therefore, when the tip portion 32 deformed into a plate shape is cut perpendicularly to the width direction, a large number of filaments 22 can be obtained by a single cutting. For this reason, the toothbrushing part 20 which consists of many filaments 22 can be efficiently formed by cutting the front-end | tip part 32 of the paper shaft 30 perpendicularly to the width direction. Increasing the number of the filaments 22 constituting the toothbrushing portion 20 in this way is advantageous for simultaneously brushing a wide range of teeth.

  Furthermore, prior to the cutting step, the tip 32 is deformed into a plate shape in the pressing step. By making the tip 32 flat in this way, the tip 32 can be easily cut.

  In the toothpaste 1, the toothpaste portion 20 is soft because it is composed of a plurality of paper-made filaments 22. Therefore, the toothpaste 1 has an advantage that it is difficult to damage teeth and gums. For this reason, the toothpaste 1 can be used with peace of mind for children. Further, even when the filament 22 is separated from the handle 10 and remains in the mouth when brushing teeth, there is little fear of damaging the mouth.

  In the pressing step, the tip 32 is pressed by sandwiching the tip 32 with two flat plates 54 from a direction perpendicular to the extending direction. Thereby, the front-end | tip part 32 can be changed easily in plate shape. However, it is not essential to use the flat plate 54 in the pressing step.

  In the cutting process, a plurality of portions of the tip portion 32 of the paper shaft 30 are cut. Thereby, compared with the case where only one place is cut | disconnected, the toothbrushing part 20 which consists of more filament 22 can be formed.

  In the cutting process, a plurality of locations of the tip 32 are simultaneously cut. Thereby, the front-end | tip part 32 can be cut | disconnected in a short time compared with the case where it cut | disconnects one place at a time.

  In the cutting process, the tip 32 is cut in a state where the paper shaft 30 is accommodated in the fixture 40. Thereby, since the paper shaft 30 can be stably fixed, the front end portion 32 can be easily cut. However, it is not essential to use the fixture 40 in the cutting process.

  In the cutting process, the tip 32 is cut using a blade 56 that moves in a plane perpendicular to the width direction of the tip 32 of the paper shaft 30. By using the blade 56, the tip 32 can be easily cut perpendicular to the width direction.

  In the cutting process, the tip 32 is cut using a plurality of blades 56 provided in parallel to each other. Thereby, it is possible to easily cut a plurality of portions of the cutting portion 32 at the same time.

  Prior to the pressing step, a cutting step for cutting the distal end portion 32 in parallel with the extending direction is performed. In this manner, by making cuts (cuts C1 and C2) in the distal end portion 32 in advance, more filaments 22 can be obtained in the cutting process.

  In the cutting step, a plurality of locations of the tip 32 of the paper shaft 30 are cut. Thereby, compared with the case where only one place is cut | disconnected, more filament 22 can be obtained in a cutting process.

  In the cutting process, a plurality of locations of the tip 32 are simultaneously cut. Thereby, the front-end | tip part 32 can be cut | disconnected in a short time compared with the case where it cut | disconnects one place at a time.

  A processing step for processing the rear end portion 36 of the paper shaft 30 into a tapered shape is performed. By processing the rear end portion 36 into a tapered shape in this manner, in the toothpaste 1, it becomes easier to clean between the teeth at the rear end portion 36. However, it is not essential to execute the machining process.

  The cutting process is performed after the machining process. In this case, the machining process can be performed more easily than when the cutting process is performed prior to the machining process. This is because if the front end portion 32 is cut before the processing step, the front end portion 32 tends to become an obstacle when the rear end portion 36 is processed into a tapered shape. However, it is not essential to perform the cutting process after the machining process. The cutting process may be performed prior to the machining process.

  A shaping process for shaping the tip 32 of the paper shaft 30 is performed so that the extending directions of the plurality of filaments 22 are aligned. By shaping the tip 32 in this manner, the beauty of the toothpaste 1 can be improved. However, it is not essential to perform the shaping process.

  In the shaping process, the leading end 32 is shaped by passing the paper shaft 30 through the shaping tool 60 from the rear end 36 side. Thereby, the front-end | tip part 32 can be shape | molded easily. However, it is not essential to use the shaping tool 60 in the shaping process. For example, the distal end portion 32 may be shaped by pressing the distal end portion 32.

  The present invention is not limited to the above embodiment, and various modifications can be made. In the said embodiment, the case where the handle | pattern part 10 which the whole extends linearly was illustrated. However, as shown in FIG. 18, a handle portion 10 that partially extends in a curved shape may be formed. In the figure, the vicinity of the brushed portion 20 in the handle portion 10 extends in a curved shape. When the handle portion 10 has such a shape, the back side of the tooth can be easily polished. In this case, a molding step is performed in which a portion in the vicinity of the tip 32 of the paper shaft 30 is formed into an arc shape. It is preferable that the forming step is performed after the cutting step. In the forming step, for example, the vicinity of the paper shaft 30 can be pressed into a mold to form the vicinity in an arcuate shape.

  In the said embodiment, the case where the several location of the front-end | tip part 32 was cut | disconnected in the cutting process was illustrated. However, in the cutting step, only one portion of the tip portion 32 may be cut. In addition, it is not essential to perform a cutting process.

  In the said embodiment, the case where the several location of the front-end | tip part 32 was cut | disconnected in the cutting process was illustrated. However, in the cutting process, only one portion of the tip 32 may be cut.

DESCRIPTION OF SYMBOLS 1 Toothpaste 10 Handle part 20 Toothbrush part 22 Line 30 Paper shaft 32 Front end part 34 Remaining part 36 Rear end part 40 Fixing tool 52 Blade 54 Flat plate 56 Blade 60 Shaper 60a Inlet 60b Outlet

Claims (21)

A method for producing a toothpaste having a handle and a toothpaste portion comprising a plurality of filaments,
A preparation step of preparing a paper shaft in which the tip portion becomes the tooth brushing portion and the remaining portion becomes the handle portion; and
A pressing step of pressing the tip from a direction perpendicular to the extending direction of the tip so that the tip of the paper shaft prepared in the preparation step is deformed into a plate shape;
A cutting step of dividing the tip portion into the plurality of filaments by cutting the tip portion deformed into a plate shape in the pressing step perpendicularly to the width direction of the tip portion;
The manufacturing method of the toothpaste characterized by including. In the manufacturing method of the toothpaste of Claim 1,
In the pressing step, a method of manufacturing a toothpaste that presses the tip so that the width of the tip is twice or more the width of the remaining portion. In the manufacturing method of the toothpaste of Claim 1 or 2,
In the pressing step, a method for manufacturing a toothpaste that presses the leading end portion of the paper shaft by sandwiching the leading end portion between two flat plates from a direction perpendicular to the extending direction of the leading end portion. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 3,
In the cutting step, a method for manufacturing a toothpaste that cuts a plurality of locations of the tip of the paper shaft. In the manufacturing method of the toothpaste of Claim 4,
In the cutting step, a method for manufacturing a toothpaste that simultaneously cuts the plurality of locations of the tip. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 5,
In the cutting process, a toothpaste manufacturing method for cutting the tip portion in a state in which the paper shaft is received in a cylindrical fixture that receives and fixes the paper shaft. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 6,
In the cutting step, a toothpaste manufacturing method for cutting the tip using a blade that moves in a plane perpendicular to the width direction of the tip of the paper shaft. In the manufacturing method of the toothpaste of Claim 7,
In the cutting step, a toothpaste manufacturing method for cutting the tip portion using a plurality of the blades provided in parallel to each other. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 8,
Prior to the pressing step, including a cutting step of cutting the tip portion of the paper shaft prepared in the preparation step in parallel with the extending direction of the tip portion,
In the pressing step, a method for manufacturing a toothpaste that presses the tip portion from a direction perpendicular to the cut surface of the tip portion cut in the cutting step. In the manufacturing method of the toothpaste of Claim 9,
In the said cutting process, the manufacturing method of the toothpaste which cut | disconnects the several location of the said front-end | tip part of the said paper shaft. In the manufacturing method of the toothpaste of Claim 10,
In the said cutting process, the manufacturing method of the toothpaste which cut | disconnects the said several places of the said front-end | tip part simultaneously. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 11,
The manufacturing method of a toothpaste including the process process which processes the rear-end part of the said paper shaft prepared in the said preparation process into a taper shape. In the manufacturing method of the toothpaste of Claim 12,
The said cutting process is a manufacturing method of the toothpaste performed after the said process process. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a tapered shape by cutting the said rear-end part of the said paper shaft with a blade. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a tapered shape by grinding the said rear-end part of the said paper shaft with an abrasive | polishing material. In the manufacturing method of the toothpaste of Claim 12 or 13,
In the said process process, the manufacturing method of the toothpaste which processes the said rear-end part into a taper-shape by pressing the said rear-end part of the said paper shaft against a type | mold. In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 16,
A method for manufacturing a toothpaste comprising a shaping step of shaping the tip end portion of the paper shaft so that the extending directions of the plurality of filaments are aligned after the cutting step. In the manufacturing method of the toothpaste of Claim 17,
In the shaping step, the toothpaste manufacturing method for shaping the tip portion by passing the paper shaft from the rear end side of the paper shaft through a cylindrical shaping tool whose outlet diameter is smaller than the inlet diameter. . In the manufacturing method of the toothpaste in any one of Claims 1 thru | or 18,
A method for manufacturing a toothpaste comprising a forming step of forming a portion in the vicinity of the tip of the paper shaft into an arcuate shape. In the manufacturing method of the toothpaste of Claim 19,
The said shaping | molding process is a manufacturing method of the toothpaste performed after the said cutting process. In the manufacturing method of the toothpaste of Claim 19 or 20,
In the forming step, a method for manufacturing a toothpaste, wherein the vicinity portion of the paper shaft is pressed against a mold to form the vicinity portion into an arcuate shape.

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