WO2023281645A1 - Method for manufacturing raw material sheets - Google Patents

Abstract

Provided is a method for manufacturing a raw material sheet used in a flavor aspirator. The method includes a step for preparing a base material sheet having a paper layer, a formation step for forming a raw material containing a binder and a flavor source into a sheet shape, and a lamination step for laminating the sheet-shaped raw material on the paper layer of the base material sheet.

Description

Raw material sheet manufacturing method

The present invention relates to a method for manufacturing a raw material sheet.

Conventionally, non-combustion type flavor inhalers for inhaling flavors without burning materials are known. As raw material sheets used in such a flavor inhaler, a tobacco raw material formed into a sheet (see Patent Document 1) and a tobacco sheet bonded to an aluminum foil (see Patent Document 2) are known. It is

WO2018/235956 Patent No. 5292410

A tobacco raw material formed into a sheet is difficult to have sufficient strength by itself. Although it is conceivable to increase the pulp fiber in the tobacco raw material to improve the strength, in this case, the ratio of the tobacco component in the tobacco raw material is decreased, which may deteriorate the smoking taste.

Further, when manufacturing a product in which a tobacco sheet is attached to a base material having a paper layer, the raw material sheet is heated by a flavor inhaler and vaporized components from the raw material sheet are supplied to the user. It is preferred not to use adhesives to suppress .

According to the first aspect, a method for manufacturing a raw material sheet used in a flavor inhaler is provided. This method includes the steps of preparing a base sheet having a paper layer, forming a raw material containing a binder and a flavor source into a sheet, and forming the sheet on the paper layer of the base sheet. and a stacking step of stacking the formed raw materials.

According to the first aspect, since the sheet-shaped raw material containing the binder is laminated on the paper layer, the binder contained in the raw material penetrates into the paper layer. Afterwards, when the moisture contained in the raw material evaporates, the binding agent allows the raw material to adhere to the paper layer. Therefore, the strength of the raw material sheet can be improved without using an adhesive for bonding the raw material. Moreover, since it is not necessary to apply a high pressure to the raw material, it is possible to manufacture a raw material sheet having a raw material with a desired density.

A gist of a second aspect is that in the first aspect, the forming step includes a step of spreading the raw material with a roller.

According to the second aspect, the raw material can be formed into a sheet with a predetermined thickness. In addition, by spreading the raw material with a roller, the smoothness of the surface of the raw material can be improved. It is possible to suppress internal dirt (adhesion of damaged parts).

The gist of the third aspect is that in the first aspect or the second aspect, the lamination step includes a step of pressing the raw material formed in the sheet shape onto the paper layer of the base sheet with a roller. and

According to the third aspect, since the raw material can be brought into contact with the paper layer of the base sheet, the raw material can be more strongly adhered to the paper layer when the moisture contained in the raw material evaporates. In addition, since the raw material is adhered to the base sheet by the binder, it is not necessary to press the raw material against the base sheet with such force as to press the raw material against the base sheet.

A fourth aspect is any one of the first to third aspects, wherein the step of conveying the base sheet is provided, and the step of laminating the raw material is performed on the paper layer of the base sheet being conveyed. and laminating the raw material.

According to the fourth aspect, since the raw material can be continuously laminated on the base sheet, the raw material sheet can be mass-produced.

The gist of the fifth aspect is that in any one of the first to fourth aspects, a drying step of drying the raw material laminated on the base sheet is included.

According to the fifth aspect, the time required for the raw material to dry and adhere to the paper layer can be shortened, and the productivity of the raw material sheet can be improved.

A gist of a sixth aspect is that in the fifth aspect, the drying step includes a step of heating the raw material laminated on the base sheet.

According to the sixth aspect, by heating the raw material, the evaporation of water contained in the raw material can be promoted, so the time until the raw material adheres to the paper layer can be shortened, and the raw material sheet can be formed. Productivity can be improved.

The gist of the seventh aspect is that, in any one of the first to sixth aspects, the step of adding a polyhydric alcohol, an acid, or a perfume to the raw material or the base sheet is included.

According to the seventh aspect, the flavor or smoking taste of the raw material sheet can be increased or adjusted.

An eighth aspect is a fifth aspect citing the fifth aspect or the sixth aspect, wherein after the drying step, a step of adding a polyhydric alcohol, an acid, or a fragrance to the base sheet on which the raw materials are laminated. The gist is to include.

According to the eighth aspect, since the polyhydric alcohol or the like is added after the laminated raw material is dried, it is possible to suppress the polyhydric alcohol or the like added to the sheet surface from drying together with the water content of the raw material.

The gist of the ninth aspect is that, in any one of the first to eighth aspects, it includes a step of forming a plurality of through holes in the base sheet.

According to the ninth aspect, since the surface area of the raw material sheet can be increased, the amount of vapor or aerosol generated from the raw material sheet can be increased. In addition, since the through-holes are formed in the raw material sheet, the raw material permeated into the raw material sheet can be efficiently evaporated.

A gist of a tenth aspect is that, in the ninth aspect, the method includes a step of forming a plurality of through holes in the base sheet with a laser beam or a needle.

According to the tenth aspect, the step of forming through-holes in the raw material sheet can be incorporated into the automated process.

The gist of the eleventh aspect is that, in any one of the first to tenth aspects, a surface treatment step of applying a surface treatment to the base sheet to increase the surface area is included.

According to the eleventh aspect, since the surface area of the raw material sheet is increased, it is possible to increase the vapor or aerosol generated when the raw material sheet is heated.

The gist of the twelfth aspect is that in the eleventh aspect, the surface treatment step includes a step of embossing the base sheet.

According to the tenth aspect, the surface area of the raw material sheet can be increased by embossing.

The gist of the thirteenth aspect is that in any one of the first to twelfth aspects, the method includes a step of cutting the base sheet on which the raw materials are laminated.

According to the thirteenth aspect, it is possible to manufacture a raw material sheet of a predetermined size.

The gist of a fourteenth aspect is that in the thirteenth aspect, the step of cutting includes a step of cutting the base sheet along the conveying direction while conveying the base sheet on which the raw materials are laminated. and

According to the fourteenth aspect, the base sheet on which the raw materials are laminated can be cut continuously along the conveying direction. Therefore, since it is possible to manufacture a long raw material sheet along the conveying direction, for example, the long raw material sheet can be wound into a roll.

A gist of a fifteenth aspect is that, in the fourteenth aspect, the method includes a step of cutting and removing both end portions of the base sheet in a direction orthogonal to the conveying direction along the conveying direction.

According to the fifteenth aspect, when both ends of the base material sheet include areas where the raw material is not laminated, this area can be removed.

The gist of the sixteenth aspect is that, in any one of the thirteenth to fifteenth aspects, the step of winding the cut base sheet is included.

According to the sixteenth aspect, since it is possible to manufacture a roll-shaped raw material sheet, it is possible to carry out a continuous processing process in the subsequent steps.

The gist of the seventeenth aspect is that in any one of the first to sixteenth aspects, the raw material includes pulp fibers.

According to the seventeenth aspect, when part of the moisture contained in the raw material evaporates, the pulp fibers of the raw material and the fibers of the paper layer are entangled, and the raw material can be more reliably adhered to the paper layer. Moreover, the strength of the raw material sheet can be improved.

The gist of the eighteenth aspect is that in any one of the first to seventeenth aspects, the thickness of the paper layer is 0.03 mm or more and 0.15 mm or less.

According to the eighteenth aspect, it is possible to efficiently heat the raw material in the flavor inhaler while ensuring the strength of the raw material sheet. If the thickness of the paper layer is less than 0.03 mm, the strength of the raw material sheet may be reduced, and the raw material sheet may be easily torn. On the other hand, if the thickness of the paper layer is more than 0.15 mm, the paper layer becomes too thick, and the heat of the heater of the flavor inhaler is used to heat the paper layer, which may reduce the heating efficiency of the raw material.

A gist of a nineteenth aspect is that in any one of the first to eighteenth aspects, the basis weight of the paper layer is 20 g/m ² or more and 100 g/m ² or less.

According to the nineteenth aspect, the raw material can be efficiently heated in the flavor inhaler while ensuring the strength of the raw material sheet. If the basis weight of the paper layer is less than 20 g/m ² , the strength of the raw material sheet may be lowered and the raw material sheet may be easily torn. Further, when the basis weight of the paper layer exceeds 100 g/m ² , the heat of the heater of the flavor inhaler is used to heat the paper layer, which may reduce the heating efficiency of the raw material.

According to a twentieth aspect, in any one of the first to nineteenth aspects, the gist is that the base sheet has a conductive layer containing a conductive material laminated on the paper layer. .

In order to improve the strength of the sheet-shaped raw material, it is conceivable to attach the raw material sheet to the aluminum foil. However, aluminum foil is difficult to handle because it is easily wrinkled and torn when it is attached to the raw material sheet. It is also conceivable to attach the tobacco sheet to the aluminum foil by applying high pressure to the tobacco sheet. However, in this case, the density of the tobacco sheet increases, making it difficult to produce a tobacco sheet with a desired density. According to the twentieth aspect, although the base sheet has the conductive layer, the material containing the binder is laminated on the paper layer, so the material can be adhered to the paper layer by the binder. Therefore, the strength of the raw material sheet can be improved without using an adhesive for bonding the raw material. Moreover, since it is not necessary to apply pressure to the raw material, it is possible to manufacture a raw material sheet having the raw material with a desired density. Furthermore, since the base sheet has a conductive layer, the heat conduction efficiency (heating efficiency) can be improved when the raw material sheet is used in a flavor inhaler. As a result, the delivery efficiency of vapor or aerosol from the raw material is improved when the raw material sheet is used, so that the amount of raw material used can be reduced. Moreover, when the flavor suction device is provided with an induction coil, the raw material sheet can be induction-heated by the induction coil. Moreover, the strength of the raw material sheet can be improved by the conductive layer. In addition, as a material having conductivity, for example, aluminum, SUS, carbon, or the like can be included.

The gist of the twenty-first aspect is that in the twentieth aspect, the conductive layer has a thickness of 5 μm or more and 20 μm or less.

According to the 21st aspect, it is possible to exhibit appropriate heat transfer while suppressing the amount of conductive material used. It can also function as a suitable susceptor when inductively heated by an induction coil in a flavor inhaler. Furthermore, it is possible to prevent the resistance from becoming too large when cutting or bending the raw material sheet.

It is a schematic enlarged sectional view of a raw material sheet concerning this embodiment. It is the schematic which shows the manufacturing method of a raw material sheet. FIG. 4 is a schematic diagram showing a process of cutting a base sheet on which raw materials are laminated in a cutting device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals, and duplicate descriptions are omitted. FIG. 1 is a schematic enlarged cross-sectional view of a raw material sheet 100 according to this embodiment. As illustrated, the raw material sheet 100 has a base sheet 10 and a raw material 20 . In this embodiment, the base sheet 10 has a conductive layer 12 containing a conductive material and a paper layer 14 laminated on the conductive layer 12 . Specifically, the base sheet 10 may be a metal laminated paper formed by bonding the conductive layer 12 and the paper layer 14 together. As the conductive material, known materials such as aluminum, stainless steel, iron, cobalt, nickel, manganese, chromium, silicon, carbon, or alloys combining them can be used. Since the base sheet 10 has the conductive layer 12 , the heat of the heater of the flavor inhaler can be efficiently transferred to the raw material 20 . Moreover, since the base sheet 10 has the conductive layer 12, the conductive layer 12 can be used as a susceptor for induction heating. As illustrated, in the raw material sheet 100 of the present embodiment, the raw material 20 is provided on the paper layer 14 of the base sheet 10 . Although the base sheet 10 has the conductive layer 12 in this embodiment, the base sheet 10 may not have the conductive layer 12 .

The paper layer 14 may be paper such as pulp paper. Also, in this embodiment, the paper layer 14 may include a fibrous layer such as a non-woven fabric that does not contain tobacco fibers. Although the thickness of the paper layer 14 is arbitrary, it is preferably 0.03 mm or more and 0.15 mm or less. If the thickness of the paper layer 14 is within this range, it is possible to efficiently heat the raw material 20 in the flavor inhaler while ensuring the strength of the raw material sheet 100 . If the thickness of the paper layer 14 is less than 0.03 mm, the strength of the raw material sheet 100 may be lowered and the raw material sheet 100 may be easily torn. Further, when the thickness of the paper layer 14 exceeds 0.15 mm, the paper layer 14 becomes too thick, so the heat of the heater of the flavor suction device is used to heat the paper layer 14, and the heating efficiency of the raw material 20 is lowered. can.

Moreover, the basis weight of the paper layer 14 is arbitrary, but is preferably 20 g/m ² or more and 100 g/m ² or less. If the basis weight of the paper layer 14 is within this range, the material 20 can be efficiently heated in the flavor inhaler while ensuring the strength of the material sheet 100 . If the basis weight of the paper layer 14 is less than 20 g/m ² , the strength of the raw material sheet 100 may be lowered, and the raw material sheet 100 may be easily torn. Further, when the basis weight of the paper layer 14 exceeds 100 g/m ² , the heat of the heater of the flavor inhaler is used to heat the paper layer 14, and the heating efficiency of the raw material 20 may decrease. More preferably, the basis weight of the paper layer 14 is 30 g/m ² or more and 50 g/m ² or less.

The thickness of the conductive layer 12 is preferably 5 μm or more and 20 μm or less. When the thickness of the conductive layer 12 is within this range, appropriate heat transfer can be exhibited while suppressing the amount of conductive material used. It can also function as a suitable susceptor when inductively heated by an induction coil in a flavor inhaler. Furthermore, excessive increase in resistance during cutting or bending of the raw material sheet 100 can be suppressed. The thickness of the conductive layer 12 is more preferably 5 μm or more and 15 μm or less, and specifically can be about 10 μm.

The raw material sheet 100 can be heated on one side or both sides by the heater of the flavor sucker in the state shown in FIG. Moreover, the raw material sheet 100 may be heated by the heater of the flavor inhaler in a folded state. The raw material sheet 100 may be heated by induction heating of the conductive layer 12 by an induction coil of a flavor sucker. Heating the raw material 20 of the raw material sheet 100 can generate an aerosol source or flavor source vapor and aerosol.

Next, a method for manufacturing the raw material sheet 100 shown in FIG. 1 will be described. FIG. 2 is a schematic diagram showing a method of manufacturing the raw material sheet 100. As shown in FIG. To manufacture the raw material sheet 100, first, the raw material 20 containing a binder and a flavor source is formed into a sheet. Specifically, in the example shown in FIG. 2, a predetermined amount of raw material 20 containing a binder and a flavor source is continuously extruded by an extruder 30 . Subsequently, the raw material 20 is spread by the spreading rollers 33 while being transported by the transport conveyor 31 . Thereby, the raw material 20 can be formed into a sheet having a predetermined thickness. In addition, by spreading the raw material 20 with the spreading roller 33, the smoothness of the surface of the raw material 20 can be improved, so damage during the manufacturing process or damage to the sheet surface due to rubbing against a heating device can be suppressed. , the loss of the raw material 20 and the contamination of the inside of the device (adhesion of damaged parts) can be suppressed.

The raw material 20 is preferably spread multiple times by a plurality of spreading rollers 33 . In the example shown in FIG. 2, the spreading roller 33 has three spreading rollers 33a, 33b, and 33c, and the raw material 20 is conveyed by the conveyor 31 and is stepped by the spreading rollers 33a, 33b, and 33c. effectively spread.

For example, tobacco can be used as a flavor source. Tobacco can be, for example, a powder. The median diameter (D50) of powdered tobacco is preferably 5 μm or more and 100 μm or less. As binders, for example, guar gum, xanthan gum, CMC (carboxymethylcellulose), CMC-Na (sodium salt of carboxymethylcellulose), pullulan and hydroxypropylcellulose (HPC), methylcellulose, hydroxylmethylcellulose and the like can be used. The weight percent of the binder that can be added to the raw material 20 is, for example, preferably more than 0% and 60% or less, more preferably more than 0% and 10% or less, relative to the weight of the raw material 20 .

A polyhydric alcohol, an acid, or a fragrance may be added to the raw material 20. Thereby, the flavor or smoking taste of the raw material sheet 100 can be increased or adjusted. Specifically, when a polyhydric alcohol is added to the raw material 20, the amount of vapor or aerosol generated from the raw material 20 when the raw material sheet 100 is heated in the flavor inhaler can be increased. Polyhydric alcohols may include glycerin, propylene glycol, sorbitol, xylitol and erythritol. These polyhydric alcohols can be used for the raw material 20 individually or in combination of two or more.

The raw material 20 contains at least a flavor source and a binder. The feedstock 20 may also contain water to adjust the viscosity. The moisture content of the raw material 20 before spreading is preferably 40% or less, for example. As a result, the raw material 20 can have a viscosity that allows it to be properly spread by the spreading rollers 33 .

Also, in the manufacturing method shown in FIG. 2, the base sheet 10 is prepared. As shown in FIG. 2, it is preferable to prepare a base sheet 10 wound into a roll. As a result, since the later-described raw material 20 can be continuously laminated on the base sheet 10, the raw material sheet 100 can be mass-produced.

Subsequently, the raw material 20 formed in a sheet shape is laminated on the paper layer 14 (see FIG. 1) of the base sheet 10 . As a result, the sheet-like raw material 20 containing the binder is laminated on the paper layer 14 , so the binder contained in the raw material 20 soaks into the paper layer 14 . Thereafter, when the moisture contained in the material 20 evaporates, the material 20 can be adhered to the paper layer 14 by the binder. Therefore, the strength of the raw material sheet 100 can be improved without using an adhesive for bonding the raw material 20 . Moreover, since it is not necessary to apply a high pressure to the raw material 20, it is possible to manufacture the raw material sheet 100 having the raw material 20 with a desired density. Furthermore, since the base sheet 10 has the conductive layer 12, the heat conduction efficiency (heating efficiency) can be improved when the raw material sheet 100 is used in a flavor inhaler. As a result, the delivery efficiency of the vapor or aerosol from the raw material 20 is improved when the raw material sheet 100 is used, so the amount of the raw material 20 used can be reduced. Moreover, when the flavor suction device is provided with an induction coil, the raw material sheet 100 can be induction-heated by the induction coil. Moreover, the strength of the raw material sheet 100 can be improved by the conductive layer 12 . In addition, as a material having conductivity, for example, aluminum, SUS, carbon, or the like can be included.

In the example shown in FIG. 2, the raw material 20 passed through the spreading rollers 33b and before passing through the spreading rollers 33c is laminated on the paper layer 14 of the base sheet 10. In the example shown in FIG. The raw material 20 formed into a sheet is preferably pressed onto the paper layer 14 of the base sheet 10 with a roller. As a result, the raw material 20 can be brought into contact with the paper layer 14 of the base sheet 10, so that the raw material 20 can be more strongly adhered to the paper layer 14 when the moisture contained in the raw material 20 evaporates. Since the raw material 20 is adhered to the base sheet 10 by the binder, it is not necessary to press the raw material 20 against the base sheet 10 with such a force as to press the raw material 20 against the base sheet 10 . In the example shown in FIG. 2, the raw material 20 formed into a sheet can be pressed against the paper layer 14 by a spreading roller 33c.

Also, it is preferable that the base sheet 10 is conveyed. In the example shown in FIG. 2, the base sheet 10 can be fed out to the spreading rollers 33c by rollers (not shown) and conveyed in a predetermined direction by the spreading rollers 33c and the conveyer 31. As shown in FIG. As shown in FIG. 2, the raw material 20 is preferably laminated on the paper layer 14 of the base sheet 10 being conveyed. As a result, the raw material sheet 100 can be mass-produced since the raw material 20 can be continuously laminated on the base sheet 10 .

The raw material 20 laminated on the base sheet 10 is preferably dried. Specifically, the raw material 20 laminated on the base sheet 10 can be heated. By heating the raw material 20, the evaporation of the moisture contained in the raw material 20 can be accelerated, so the time until the raw material 20 adheres to the paper layer 14 can be shortened, and the productivity of the raw material sheet 100 can be improved. can be improved.

In the example shown in FIG. 2, a first heating device 35 and a second heating device 36 are provided downstream of the spreading roller 33 . The first heating device 35 can have a metal belt 35a and a heater 35b. The second heating device 36 can have a mesh belt 36a and a heater 36b. In the example shown in FIG. 2, the first heating device 35 has a plurality of heaters 35b, and the second heating device 36 has a plurality of heaters 36b. The metal belt 35a and the mesh belt 36a can convey the raw material 20 and the base sheet 10 that have passed through the spreading roller 33c in a predetermined direction. In the first heating device 35, the heater 35b is configured to heat the raw material 20 from one side (upper side). In the second heating device 36, the heaters 36b are arranged so as to sandwich the raw material 20 conveyed on the mesh belt 36a, and are configured to heat the raw material 20 from both sides.

Any heating device such as an infrared heater may be employed as the heaters 35b and 36b. The raw material 20 may be heated from the paper layer 14 side of the base sheet 10, may be heated from the conductive layer 12 side of the base sheet 10, or may be heated from the paper layer 14 side of the base sheet 10 and the conductive layer. The raw material 20 may be heated from both sides of the 12 side. Moreover, not only the heaters 35b and 36b, but also a blower may blow air to the raw material 20 to promote drying. That is, not only the first heating device 35 and the second heating device 36, but any device capable of promoting the drying of the raw material 20 can be used. It is preferable to apply a tensile stress to the base sheet 10 when the raw material 20 of the base sheet 10 is dried. This can prevent the base sheet 10 from shrinking and curling when the raw material 20 dries.

A polyhydric alcohol, acid, or fragrance may be added to the base sheet 10 . Thereby, the flavor or smoking taste of the raw material sheet 100 can be increased or adjusted. Specifically, when a polyhydric alcohol is added to the base sheet 10, the amount of vapor or aerosol generated from the raw material 20 when the raw material sheet 100 is heated in the flavor inhaler can be increased. Moreover, it is preferable that a polyhydric alcohol, an acid, or a fragrance is added to the base sheet 10 on which the raw material 20 is laminated after the drying step. In this case, since the polyhydric alcohol or the like is added after the laminated raw material 20 is dried, the polyhydric alcohol or the like added to the sheet surface can be suppressed from drying together with the moisture of the raw material 20 .

A plurality of through holes may be formed in the base sheet 10 . As a result, the surface area of the raw material sheet 100 can be increased, so that the amount of vapor or aerosol generated from the raw material sheet 100 can be increased. In addition, since the through-holes are formed in the material sheet 100, the material 20 that permeates the inside of the material sheet 100 can be efficiently evaporated. The through holes may be formed before the raw material 20 is laminated on the base sheet 10, or may be formed after the raw material 20 is laminated. Also, the plurality of through-holes can be specifically formed in the base sheet 10 by laser holes or needles. As a result, the step of forming through-holes in the raw material sheet 100 can be included in the manufacturing process as shown in FIG. 2, and the step can be automated.

In addition, the base sheet 10 may be surface-treated to increase its surface area. As a result, the surface area of the raw material sheet 100 is increased, so that the amount of vapor or aerosol generated when the raw material sheet 100 is heated can be increased. This surface treatment may be performed before the raw material 20 is laminated on the base sheet 10, or may be performed after the raw material 20 is laminated. Also, the base sheet 10 may be embossed. Thereby, the surface area of the raw material sheet 100 can be increased by embossing.

The raw material 20 may contain pulp fibers. As a result, when the moisture contained in the raw material 20 evaporates, the pulp fibers of the raw material 20 and the fibers of the paper layer 14 are entangled, and the raw material 20 can be more reliably adhered to the paper layer 14 . Moreover, the strength of the raw material sheet 100 can be improved. On the other hand, feedstock 20 may be free of pulp fibers. In this case, the ratio of the flavor source in the raw material 20 is increased by that amount, so an improvement in smoking taste is expected. Also, an acid such as lactic acid, palmitic acid, or benzoic acid may be added to the raw material 20 .

The base sheet 10 laminated with the raw material 20 is preferably cut. Thereby, the raw material sheet 100 of a predetermined size can be manufactured. Specifically, as shown in FIG. 2 , the base sheet 10 to which the raw material 20 has been dried and adhered, that is, the raw material sheet 100 can be cut by a cutting device 200 .

FIG. 3 is a schematic diagram showing the process of cutting the base sheet 10 with the raw material 20 laminated thereon by the cutting device 200. FIG. In the example shown in FIG. 3, the base sheet 10 (raw material sheet 100) laminated with the raw material 20 is wound into a roll. Thus, the base sheet 10 laminated with the raw material 20 is preferably wound into a roll. Thereby, the raw material sheet 100 can be made compact, and the storage space can be reduced. In addition, in a subsequent step, for example, in a cutting step as shown in FIG. 3, a continuous processing process can be performed by feeding out the rolled raw material sheet 100 . Note that the raw material sheet 100 shown in FIG. 3 has regions 100a where the raw material 20 is not laminated at both ends perpendicular to the conveying direction.

As shown in FIG. 3, the base sheet 10 on which the raw material 20 is laminated can be cut along the conveying direction while being fed and conveyed in a predetermined direction. Specifically, the raw material sheet 100 wound in a roll shape is unwound and conveyed in a predetermined direction, and one or more slit cutters 37 can be arranged in the conveying path. The base sheet 10 laminated with the raw material 20 can be cut along the conveying direction by the slit cutter 37 while being conveyed. Thereby, the base sheet 10 on which the raw material 20 is laminated can be continuously cut along the conveying direction. Therefore, since it is possible to manufacture a long raw material sheet 100 along the conveying direction, for example, the long raw material sheet 100 can be wound into a roll.

When a plurality of slit cutters 37 are provided as shown in FIG. 3, the plurality of slit cutters 37 can be arranged adjacent to each other in the width direction of the base sheet 10, which is orthogonal to the conveying direction. As shown in FIG. 3, both ends of the base sheet 10 in the direction perpendicular to the conveying direction of the base sheet 10 are preferably cut and removed along the conveying direction. As a result, as shown in FIG. 3, when both ends include regions 100a where the raw material 20 is not laminated, the regions 100a can be removed.

As shown in FIG. 3, the cut base sheet 10 is preferably wound up. As a result, since the roll-shaped raw material sheet 100 can be manufactured, a continuous processing process can be performed in the subsequent steps. Specifically, for example, when cutting the raw material sheet 100 to a predetermined length, the raw material sheet 100 can be continuously cut at equal intervals in the conveying direction while the rolled raw material sheet 100 is fed out.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical ideas described in the claims, specification and drawings. is possible. Any shape or material that is not directly described in the specification and drawings is within the scope of the technical concept of the present invention as long as it produces the action and effect of the present invention.

10: base sheet 12: conductive layer 14: paper layer 20: raw material 100: raw material sheet

Claims (21)

A method for manufacturing a raw material sheet used in a flavor inhaler, comprising:
preparing a base sheet having a paper layer;
a forming step of forming a raw material containing a binder and a flavor source into a sheet;
and a lamination step of laminating the raw material formed in the sheet shape on the paper layer of the base sheet. In the method for manufacturing a raw material sheet according to claim 1,
The method for producing a raw material sheet, wherein the forming step includes a step of spreading the raw material with a roller. In the raw material sheet manufacturing method according to claim 1 or 2,
The method for producing a raw material sheet, wherein the lamination step includes a step of pressing the raw material formed in the sheet shape onto the paper layer of the base sheet with a roller. In the raw material sheet manufacturing method according to any one of claims 1 to 3,
Having a step of conveying the base sheet,
A method for producing a raw material sheet, wherein the step of laminating the raw material includes laminating the raw material on the paper layer of the base sheet being conveyed. In the raw material sheet manufacturing method according to any one of claims 1 to 4,
A method for producing a raw material sheet, comprising a drying step of drying the raw material laminated on the base sheet. In the method for manufacturing a raw material sheet according to claim 5,
The method for producing a raw material sheet, wherein the drying step includes a step of heating the raw material laminated on the base sheet. In the raw material sheet manufacturing method according to any one of claims 1 to 6,
A method for producing a raw material sheet, comprising adding a polyhydric alcohol, an acid, or a perfume to the raw material or the base sheet. In the method for manufacturing a raw material sheet according to claim 7 citing claim 5 or 6,
A method for producing a raw material sheet, comprising adding a polyhydric alcohol, an acid, or a fragrance to the base sheet on which the raw material is laminated after the drying step. In the raw material sheet manufacturing method according to any one of claims 1 to 8,
A method for producing a raw material sheet, comprising the step of forming a plurality of through-holes in the base sheet. In the method for manufacturing a raw material sheet according to claim 9,
A method for producing a raw material sheet, comprising the step of forming a plurality of through-holes in the base sheet by using a laser beam or a needle. In the raw material sheet manufacturing method according to any one of claims 1 to 10,
A method for producing a raw material sheet, comprising a surface treatment step of applying a surface treatment to the base sheet to increase its surface area. In the method for manufacturing a raw material sheet according to claim 11,
The method for producing a raw material sheet, wherein the surface treatment step includes a step of embossing the base sheet. In the raw material sheet manufacturing method according to any one of claims 1 to 12,
A method for producing a raw material sheet, comprising cutting the base sheet on which the raw material is laminated. In the raw material sheet manufacturing method according to claim 13,
A method for manufacturing a raw material sheet, wherein the step of cutting includes a step of cutting the base sheet along a conveying direction while conveying the base sheet on which the raw material is laminated. In the method for manufacturing a raw material sheet according to claim 14,
The method of manufacturing a raw material sheet, wherein the step of cutting includes a step of cutting and removing both end portions of the base sheet in a direction orthogonal to the conveying direction along the conveying direction. In the raw material sheet manufacturing method according to any one of claims 13 to 15,
A method for producing a raw material sheet, comprising winding the cut base sheet. In the raw material sheet manufacturing method according to any one of claims 1 to 16,
A method for producing a raw material sheet, wherein the raw material includes pulp fibers. In the raw material sheet manufacturing method according to any one of claims 1 to 17,
The method for producing a raw material sheet, wherein the paper layer has a thickness of 0.03 mm or more and 0.15 mm or less. In the raw material sheet manufacturing method according to any one of claims 1 to 18,
The method for producing a raw material sheet, wherein the basis weight of the paper layer is 20 g/m ² or more and 100 g/m ² or less. In the raw material sheet manufacturing method according to any one of claims 1 to 19,
The method for producing a raw material sheet, wherein the base sheet has a conductive layer containing a conductive material laminated on the paper layer. In the method for manufacturing a raw material sheet according to claim 20,
The method for producing a raw material sheet, wherein the conductive layer has a thickness of 5 μm or more and 20 μm or less.

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