Toilet roll manufacturing method

Abstract

To provide a toilet roll excellent in deodorant effect to uraroma and feces odor.SOLUTION: A toilet roll is formed by winding belt-like toilet tissue paper around a paper tube. The toilet roll contains a catechin-based deodorant, a tannin-based deodorant and silver-supported zeolite.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention involves winding a strip of toilet paper around a paper tube. Tato The present invention relates to a method for producing a cast roll. [Background technology]

[0002] Toilets can produce bad odors from urine and feces, so technologies for deodorizing toilet spaces and technologies for mitigating bad odors using fragrances have been proposed.

[0003] For example, a known technology involves coating the inner surface of the paper tube of toilet rolls normally kept in bathrooms with a deodorizer such as fragrant paradichlorobenzene (see Patent Document 1 below). Another known technology utilizes the basic nature of ammonia, which causes the unpleasant odor of urine in bathrooms, to impregnate the paper tube with a deodorizer that neutralizes the odor (see Patent Document 2 below). Another known technology is to use a fragrance applied to the paper tube or toilet paper to mix with the odors of methyl mercaptan and hydrogen sulfide, which cause feces odor, thereby modifying or masking the odor and alleviating the odor (see Patent Document 3 below). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 56-111890 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-56210 [Patent Document 3] Japanese Patent Application Publication No. 2017-176571 Summary of the Invention [Problem to be solved by the invention]

[0005] The main components responsible for the stool odor that is a foul odor in the toilet space are methyl mercaptan, trimethylamine, and hydrogen sulfide, while the main component responsible for the urine odor is ammonia. The paradichlorobenzene disclosed in Patent Document 1 above is effective in deodorizing by masking ammonia-derived urine odor, but is not necessarily effective against the components that cause stool odor. Furthermore, the technology disclosed in Patent Document 2 is not necessarily effective against acidic stool odor components such as hydrogen sulfide. Furthermore, the technology disclosed in Patent Document 3 is excellent at masking methyl mercaptan and hydrogen sulfide, but is not necessarily effective at deodorizing ammonia odor. Furthermore, the technologies of Patent Documents 1 and 3 mask bad odors with fragrance, making it difficult to create fragrance-free products where a fragrance is not desired. Furthermore, in recent years, people have been spending more time at home due to the impact of COVID-19 and other factors, such as refraining from going out, working from home, and studying from home. As a result, some people are now concerned about odors in their homes that they previously did not mind, particularly unpleasant odors such as feces and urine in toilets, which are now being used more frequently. This calls for more effective deodorizing technology for toilet spaces.

[0006] Therefore, the main object of the present invention is to provide a toilet soap that has an excellent deodorizing effect against methyl mercaptan, trimethylamine, hydrogen sulfide, and ammonia, which are the main components that cause urine odor and feces odor, and that can be made fragrance-free. Lu's The object is to provide a manufacturing method. [Means for solving the problem]

[0007] The present invention solves the above problems. Reference The first method is A toilet roll in which a strip of toilet paper is wound around a paper tube, The toilet roll is characterized by containing a tannin-based deodorizer, a catechin-based deodorizer, and silver-supported zeolite.

[0008] Reference The second method is The paper tube is provided with a catechin-based deodorant, a tannin-based deodorant, and silver-supported zeolite, and the portion where the deodorants are provided is not provided with an acrylic resin. ReferenceThe first method is toilet roll.

[0009] Reference The third method is The catechin-based deodorant, the tannin-based deodorant, and the silver-loaded zeolite are attached to the fibers of the paper tube base paper that constitutes the inner surface of the paper tube or are held in the inter-fiber voids. Reference The toilet roll according to the first or second aspect.

[0010] No. one The means of A method for manufacturing a toilet roll in which a strip of toilet paper is wound around a paper tube, comprising: a step of mixing a chemical solution containing diethylene glycol monoethyl ether and isopropyl alcohol with a catechin-based deodorant, a tannin-based deodorant, and silver-supported zeolite; The mixed solution is applied to paper with a thickness of 100 to 400 μm and a basis weight of 130 to 200 g / m 2 3.0 to 6.0 g / m 2 a step of applying a catechin-based deodorizer, a tannin-based deodorizer, and silver-loaded zeolite to the paper tube base paper by coating the paper tube base paper with the above-mentioned solution; a step of manufacturing a toilet roll using the paper tube base paper so that the application surface is the inner surface of the paper tube; The method for producing toilet rolls is characterized by comprising the steps of: [Effects of the Invention]

[0011] As described above, according to the present invention, a toilet soap that has an excellent deodorizing effect against methyl mercaptan, trimethylamine, hydrogen sulfide, and ammonia, which are the main components that cause urine odor and feces odor, and can also be made fragrance-free, is provided. Lu's A method of manufacture is provided. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating a toilet roll according to the present invention. [Figure 2] FIG. 1 is a diagram schematically showing a cross section of a cardboard tube according to the present invention. [Figure 3] FIG. 2 is an explanatory diagram of an example of a manufacturing process for a toilet roll according to the present invention. [Figure 4] 1A to 1C are diagrams illustrating an example of a method for manufacturing a paper tube according to the present invention. [Figure 5] 1 is a cross-sectional view showing an example of the structure of paper tube base paper according to the present invention. FIG. [Figure 6] 1 is an example of a toilet roll product in which the toilet roll according to the present invention is packaged in a film. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

[0014] "Toilet roll" As shown in Figure 1, the toilet roll of this embodiment has a strip of toilet paper S3 wound around a paper tube 11. There are no limitations on the size, but it is desirable that the width L1 is 100 to 120 mm, the diameter L2 is 100 to 120 mm, the roll length (total length of toilet paper) is 18 to 80 m, and the paper tube diameter is 35 to 50 mm.

[0015] Toilet paper S3 has a basis weight per ply of 11.0 to 25.0 g / m 2 The paper thickness can be 100 to 180 μm, and the number of plies can be 1 to 4.

[0016] The basis weight is measured according to the basis weight measurement method of JIS P 8124 (1998), and the paper thickness is the average value measured five times under the conditions of JIS P 8111 (1998) using a dial thickness gauge (thickness measuring device) "PEACOCK G type" (manufactured by Ozaki Seisakusho) after sufficient humidity conditioning under the same conditions.

[0017] This toilet roll is characterized by the addition of a catechin-based deodorizer, a tannin-based deodorizer, and silver-supported zeolite. Other deodorizers may also be added. Among polyphenol-based deodorizers, known to selectively react chemically with odor-causing substances in toilet spaces, such as ammonia, to eliminate odors, the use of tannin-based and catechin-based deodorizers, in particular, and silver-supported zeolite, which is not simply a zeolite that adsorbs volatile components to a porous material, can extremely effectively and rapidly reduce odors caused by methyl mercaptan, trimethylamine, hydrogen sulfide, and ammonia, resulting in excellent deodorizing effects against urine and feces odors. Furthermore, since the catechin-based deodorizer, tannin-based deodorizer, and silver-supported zeolite all have no or almost no odor, the toilet roll can be made substantially odorless.

[0018] Catechin-based deodorizers contain at least one of catechin and catechin derivatives, with at least one of the catechin and catechin derivatives being the main active ingredient. Examples of catechin include catechin, epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin gallate. They may also contain multiple types of catechins, such as tea catechins. They may also be plant-extracted catechins, such as tea catechins. At least one of the catechin and catechin derivatives has bactericidal properties. Therefore, they can inhibit the growth of bacteria and other microorganisms that decompose urine and generate ammonia in toilet spaces. Furthermore, plant-extracted catechins can provide users with a sense of security, knowing that they are derived from natural products.

[0019] Tannin-based deodorizers contain at least one of tannin and tannin derivatives, and have at least one of the tannin and tannin derivatives as their main active ingredient. Tannins and tannin derivatives have large molecular weights and contain many phenolic hydroxyl groups, which exert deodorizing function, within their molecules. Therefore, they have excellent reactivity with ammonia, one of the main odor components in toilet spaces, and exhibit excellent deodorizing function in toilet spaces. Tannins and tannin derivatives may be condensed or hydrolyzed. These may also be mixed. Furthermore, they may contain multiple types of tannins, such as black tea-derived tannin, persimmon tannin, and persimmon tannin derivatives. Tannins may be plant-derived, providing users with a sense of security. Particularly preferred tannin-based deodorizers have at least one of persimmon-derived persimmon tannin and persimmon tannin derivatives as their main active ingredient. Persimmon-derived persimmon tannin and persimmon tannin derivatives have particularly large molecular weights and excellent deodorizing effects. In the present invention, catechin and tannin are distinguished. Tannic acid is also included in tannins.

[0020] In the silver-supported zeolite, the silver in the silver-supported zeolite is in the form of silver ions, silver clusters, and metallic silver, and includes at least the form of silver ions. The silver-supported zeolite may also have a substance other than silver supported on the zeolite. The silver-supported zeolite in the present invention is not necessarily limited, but examples include those contained in Zeomic (manufactured by Shinanen Zeomic Co., Ltd.) and Zaobasset AG-30N (manufactured by Daiwa Chemical Industry Co., Ltd.). The silver-supported zeolite contained in Zaobasset AG-30N (manufactured by Daiwa Chemical Industry Co., Ltd.) is particularly suitable.

[0021] The contents of the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite in the toilet roll are not necessarily limited, and may be adjusted appropriately depending on the types of catechin, tannin, and silver-supported zeolite.

[0022] The portions of the toilet roll 10 to which the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite are applied are not necessarily limited, as long as they are applied to at least one of the paper tube 11 and the toilet paper S3. The portions to which the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite are applied may be different. Preferably, the toilet roll has all of the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite applied to the paper tube 11. Since the paper tube 11 is the portion that remains until the end even when the toilet paper S3 is used, the deodorizing effect is likely to last until the toilet paper S3 is used up.

[0023] Furthermore, in the toilet roll 10, when a catechin-based deodorizer, a tannin-based deodorizer, and silver-supported zeolite are applied to the paper tube 11, it is desirable that the applied portion not be applied with an acrylic resin. Acrylic resin makes it difficult to properly attach the catechin-based deodorizer, tannin-based deodorizer, and silver-supported zeolite to the paper tube. In addition, the acrylic resin may coat the deodorizers and reduce breathability.

[0024] A particularly preferred form of application of the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite is one in which the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite are attached to or held in the voids between fibers of the paper tube base paper 12 that constitutes the inner circumferential surface of the paper tube 11, as shown in Figure 2. In other words, in the thickness direction of the paper tube 11, there is a portion 40 in which the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite are present from the inner circumferential surface side of the paper tube toward the outer circumferential surface side of the paper tube. Unlike the outer circumferential surface around which the toilet paper S3 is wound multiple times, the inner circumferential surface of the paper tube 11 is exposed to the atmosphere in the toilet space, and therefore has a higher chance of coming into contact with malodorous components, resulting in a more excellent deodorizing effect. In particular, the catechin-based deodorant and tannin-based deodorant are in the form of a solution when applied, and the silver-loaded zeolite is in the form of a solid dispersion, so that, for example, if these are applied separately or mixed together to the inner circumferential surface of the paper tube 11 by coating or the like, the catechin-based deodorant, tannin-based deodorant, and silver-loaded zeolite will penetrate in the thickness direction from the inner circumferential surface of the paper tube toward the outer circumferential surface, and will adhere to the fibers of the paper tube base paper or be held in the voids between the fibers. In this form, there is less separation of the catechin-based deodorant, tannin-based deodorant, and silver-loaded zeolite from the inner circumferential surface of the paper tube, and even if the inner circumferential surface of the paper tube rubs against part of the paper holder when pulling out the toilet paper S3, the catechin-based deodorant, tannin-based deodorant, and silver-loaded zeolite will not separate from the inner circumferential surface of the paper tube, and the deodorizing effect will be sufficiently maintained. Furthermore, sufficient contact with malodorous components floating in the toilet space is ensured through the inner surface of the paper tube, providing excellent deodorizing functionality.

[0025] The paper core 11 of the toilet roll 10 has a paper thickness of 100 to 400 μm and a basis weight of 130 to 200 g / m 2It is desirable to use a paper tube base paper of the above thickness and basis weight. Paper tube base paper of these thicknesses and basis weights has an appropriate fiber density, which makes it easy for the catechin-based deodorant, tannin-based deodorant, and silver-loaded zeolite to adhere to the fibers of the paper tube base paper 12 or to be held in the voids between the fibers. For this reason, they penetrate in the thickness direction, particularly from the inner circumferential surface of the paper tube 11 toward the outer circumferential surface, and are easy to adhere to the fibers of the paper tube base paper or to be held in the voids between the fibers, which allows them to come into effective contact with odorous components via the inner surface of the paper tube, thereby demonstrating excellent deodorizing function.

[0026] Furthermore, the paper tube base paper 12 that constitutes the paper tube 11 has a density of 0.2 to 1.8 g / cm 3 It is desirable for the paper to have a tensile strength (vertical) of 4.0 to 12.0 kN / m, a tensile strength (horizontal) of 1.0 to 7.0 kN / m, and a Beck smoothness of 10 to 80 seconds. This makes it easier to impregnate each deodorant into the paper layer during manufacturing, and also makes it possible to more effectively retain the deodorant and ensure that the deodorant comes into contact with odorous components that volatilize into the toilet space.

[0027] Furthermore, the paper tube base paper 12 that makes up the paper tube 11 is required to have sufficient strength to withstand the process of winding the toilet paper S3 during production, and to withstand being crushed when used as the toilet roll 10 and during transportation. From this perspective, it is desirable for the paper tube base paper to have a tensile strength (vertical) of 4.0 to 12.0 kN / m and a tensile strength (horizontal) of 1.0 to 7.0 kN / m.

[0028] The density is measured in accordance with the method described in JIS P 8118 (1998) in the present invention and this specification. The Beck smoothness is measured in accordance with the method described in JIS P 8119 (1998), and the tensile strength is measured in accordance with the method described in JIS P 8113 (2006).

[0029] On the other hand, toilet roll 10 is often packaged in a resin film to form product S, as shown in the gusset packaging form in Figure 6. When this form is used, toilet roll 10 according to the present invention is made to have an oxygen permeability of 0.1 to 50 ml / m to prevent the deodorizing function from being reduced due to contact between offensive odor components and the deodorizer or unintentional volatilization of the deodorizer during transportation to a store after production or while the deodorizer is on display in a store. 2 It is desirable to wrap the product in a resin film 20 having gas barrier properties.

[0030] Examples of such resin films include polyethylene films, polypropylene films, polyethylene terephthalate films, polyvinylidene chloride films, etc. The method for measuring oxygen permeability in the present invention and this specification conforms to the method described in JIS K 7126 (2006) (isobaric method: Mocon method / 23°C x 65% RH).

[0031] "Toilet roll manufacturing method" Next, a method for manufacturing a toilet roll according to this embodiment will be described mainly with reference to Figures 3 to 6. The method for manufacturing the toilet roll 10 of this embodiment includes a step (A) of manufacturing a long cardboard tube 11L, a log manufacturing step (B), and a cutting step (C). However, the method for manufacturing the toilet roll of the present invention is not necessarily limited to the method of this embodiment.

[0032] As shown in Figure 4, the process of manufacturing a long cardboard tube 11L ((A) in Figure 3) involves unwinding two strip-shaped cardboard tube base papers 12, 12 from raw rolls 12A, 12A, respectively, applying glue 30 to predetermined positions with a gluing roll 13, overlapping the glued portions and spirally winding them around a shaft 15 with a core winder 14, then pulling out the shaft and cutting them to a specified length according to the production type with a slitter 16, thereby forming a cylindrical long cardboard tube 11L. The amount of glue applied is not particularly limited, but is generally 0.1 to 5.0 g / m 2Furthermore, the glue 30 can be any known glue for paper tubes as long as it does not impede the effects of the present invention, and examples thereof include acrylic adhesives, hot melt adhesives, starch glue, and PVA (polyvinyl alcohol).

[0033] It should be noted that different raw rolls may be used for each of the paper tube base papers 12, 12, and for example, one of them may be printed or the basis weight of each may be different. In the present invention, the paper tube base papers 12, 12 do not necessarily have to be the same.

[0034] Next, in parallel with or after the production of the long paper tube 11L, the log 10R is produced in the log production process (FIG. 3 (B)). Note that the log 10R is a general term in the industry and refers to an intermediate product that has the same diameter as the final product, the toilet roll 10, and a width that is equivalent to multiples of the final product.

[0035] This log 10R is manufactured by continuously or stepwise unwinding and winding toilet paper base paper S1, S1 having substantially the same width as the long paper tube 11L from jumbo rolls JR, JR to form the log 10R. This winding can be performed using a winder device X2. In the illustrated example, toilet paper base paper S1, S1 is unwound from two jumbo rolls JR, JR and formed into a two-ply toilet paper base paper S2 at an overlapping section 51, and then a contact embossing device 54 and a perforation line forming device 70 apply a contact embossing CE and form a perforation line (not shown), and the resulting toilet paper is then wound up by a winding device 75 to form a two-ply structure.

[0036] In the illustrated embodiment, sanitary thin paper is unwound from two jumbo rolls to form a two-ply toilet paper base paper S2, but the present invention is not limited to this two-ply structure and may also include one ply or three or more plies. Furthermore, when a multi-ply structure is used, the basis weight and physical properties of the base papers do not need to be the same.

[0037] Next, once the logs 10R have been produced in this manner, the logs 10R are stored in a known log accumulator X3 and moved to a subsequent log cutter facility X4. Then, as shown in Figure 3(C), the logs 10R are cut to the product width by a known log cutter 76 to produce individual toilet rolls 10.

[0038] As shown in Figure 6, a plurality of the obtained individual toilet rolls 10 are packaged in a resin film to form a toilet roll product. 2 Packaging in a resin film with gas barrier properties of 10 days results in a preferable package that prevents the odor-eliminating function from being reduced due to contact between the odorous components and the deodorizer or unintentional evaporation of the deodorizer during transportation to the store after production or while the product is on display in the store.

[0039] In the manufacturing method for the toilet roll 10 according to the present invention, a catechin-based deodorant, a tannin-based deodorant, and silver-loaded zeolite are applied by coating to at least one of the toilet paper S3 and the paper tube base paper 12 that will later form the paper tube 11. However, between the paper tube base paper 12 and the toilet paper S3, the paper tube base paper 12 generally has a higher basis weight and is stronger, making it easier to apply chemicals. Furthermore, the toilet paper S3 is required to be water-degradable, so it has low wet strength. For this reason, it is preferable to apply the deodorant to the paper tube base paper 12 rather than to the toilet paper S3, as this makes manufacturing easier. Specific examples and preferred examples of the catechin-based deodorant, tannin-based deodorant, and silver-loaded zeolite in this manufacturing method are the same as those explained for the toilet roll 10 above.

[0040] The catechin-based deodorizer, tannin-based deodorizer, and silver-supported zeolite can be applied to the toilet paper S3 and paper tube base paper 12 using, for example, various known coating machines, printing machines such as flexographic printing machines, gravure printing machines, and inkjet printing machines, or spray coating devices. The catechin-based deodorizer, tannin-based deodorizer, and silver-supported zeolite may be applied separately, but it is preferable to apply the deodorizer solution 40 containing the catechin-based deodorizer, tannin-based deodorizer, and silver-supported zeolite through a mixing process before application. This reduces the number of application devices and manufacturing steps. The catechin-based deodorizer and tannin-based deodorizer may also be prepared using an extract mixture in which at least one of catechin and a catechin derivative and at least one of tannin and a tannin derivative are pre-mixed. An example of such an extract mixture is the extract mixture manufactured by Stanley Pharmaceutical Co., Ltd.

[0041] In this case, it is preferable to prepare a coating solution by mixing a deodorizing solution containing a catechin-based deodorizing agent, a tannin-based deodorizing agent, and silver-supported zeolite with a solution containing diethylene glycol monoethyl ether and isopropyl alcohol. As shown in Figure 5, the deodorizing solution 40 penetrates the paper tube base paper 12 well, making it easier to impregnate the paper layer of the paper tube base paper 12 with the deodorizing solution 40 without uneven coating. In other words, the catechin-based deodorizing agent and the tannin-based deodorizing agent can penetrate into the fibers, and the silver-supported zeolite can be delivered into the fibers. This is an unprecedented application method, in which the catechin-based deodorizing agent, the tannin-based deodorizing agent, and the silver-supported zeolite are attached to the fibers of the paper tube base paper that forms the inner surface of the paper tube or are retained in the interfiber voids. This method has an extremely high deodorizing effect because the deodorizing agent is not coated as described above. Furthermore, it is desirable that the chemical solution containing diethylene glycol monoethyl ether and isopropyl alcohol further contains 2,4,7,9-tetramethyl-5-decyne-4,7-diol, which makes coating easier. Note that deodorant chemical solutions alone are difficult for deodorants to penetrate into the paper tube base paper, and even if coated, they tend to repel the deodorant on the paper tube base paper. Furthermore, binders such as acrylic resins, which are commonly used for adhering solids, tend to foam when mixed with deodorant chemical solutions containing catechin-based deodorants, tannin-based deodorants, and silver-loaded zeolite, and may mask the deodorant after application.

[0042] The position where the deodorant liquid 40 is applied to the paper tube base paper 12 can be exemplified as the front stage of the core winder shown in Fig. 4. However, there is no specific limitation to this. Preferably, it is applied to a position that will become one side of the paper tube base paper 12 that will form the inner circumferential surface of the paper tube when it is made into the paper tube 11.

[0043] The position where the deodorant liquid containing each deodorant is applied to the toilet paper S3 may be the toilet paper base paper S1, S1 in the upstream section of the overlapping section 51 in the winder device X2 shown in Fig. 3, or may be the toilet paper base paper S2 with a two-ply structure in the downstream section of the overlapping section 51. There are no specific limitations.

[0044] When applying to the paper tube base paper 12, the thickness of the paper tube base paper 12 is 100 to 400 μm and the basis weight is 130 to 200 g / m 2 The amount of coating on the paper tube base paper 12 is preferably 3.0 to 6.0 g / m 2 The thickness of the paper core base paper 12 is 100 to 400 μm, and the basis weight is 130 to 200 g / m 2 In this case, the applied deodorant solution 40 can easily penetrate as shown in FIG. 5, and the application amount is 3.0 to 6.0 g / m 2 If the density of the paper tube base paper 12 is 0.2 to 1.8 g / cm3, the deodorizing effect is easily sufficient. 3 If the Beck smoothness is 10 to 80 seconds, the penetration of the deodorant liquid will be more reliable and it will be easier to apply the deodorant liquid 40. The proportions of the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite in the deodorant liquid are not necessarily limited.

[0045] The above manufacturing method makes it possible to suitably manufacture toilet rolls that have excellent deodorizing effects against methyl mercaptan, trimethylamine, hydrogen sulfide, and ammonia, which are the main components that cause urine odor and stool odor, and that can also be made fragrance-free. Note that, for example, when a deodorizer is added to toilet paper to produce a toilet roll that does not have a paper tube, also known as a coreless toilet roll, step (A) of manufacturing the long paper tube 11L does not need to be carried out. [Example]

[0046] Next, using the examples, comparative examples, and blanks, the deodorizing effect against ammonia, trimethylamine, hydrogen sulfide, and methyl mercaptan, which are the main odor components in toilet spaces, was confirmed using a test method based on the "method based on the deodorizing test of the Japan Textile Evaluation Technology Council, a general incorporated association."

[0047] The samples of the examples, comparative examples, and blanks were each a single paper tube with a width of 114 mm and an inner diameter of 41 mm. This paper tube was a spiral paper tube manufactured by the method shown in Figure 4.

[0048] In the examples, a deodorant liquid containing a mixture of a catechin-based deodorant, a tannin-based deodorant, and silver-supported zeolite is coated on the surface of the inner paper tube base paper that will become the inner circumferential surface of the paper tube, and the catechin-based deodorant, tannin-based deodorant, and silver-supported zeolite are attached to the fibers of the paper tube base paper that make up the inner circumferential surface of the paper tube or are held in the gaps between the fibers. In the comparative example, a deodorant liquid containing a mixture of a catechin-based deodorant and a tannin-based deodorant instead of the deodorant liquid in the examples, but not containing silver-supported zeolite, is coated on the surface of the inner paper tube base paper that will become the inner circumferential surface of the paper tube. The blank is one to which no deodorant is applied.

[0049] The catechin-based deodorant and tannin-based deodorant used in the Examples and Comparative Examples were an extract mixture (#2571103) manufactured by Stanley Pharmaceutical Co., Ltd., containing tea catechins and persimmon tannins as the main active ingredients. In the Examples, Zaobasset AG-30N manufactured by Yamato Chemical Industry Co., Ltd., containing silver-supported zeolite, was used. The deodorant solutions used in the Examples and Comparative Examples were mixed with a solution containing diethylene glycol monoethyl ether and isopropyl alcohol (New-FK MR OP Varnish G-790 manufactured by Sakata Inx Corporation) and applied. In the Examples, the catechin-based deodorant and tannin-based deodorant were added to a solution prepared by mixing Zaobasset AG-30N, New-FK MR OP Varnish G-790, and water in a volume ratio of 3:3:4. In the Examples and Comparative Examples, the amounts of the catechin-based deodorant and tannin-based deodorant applied were adjusted to be equal.

[0050] (Ammonia adjustment) A PVDF odor bag (5 L) containing a filter paper (Advantech 100CIRCLES) soaked in ammonia water was filled with air, and the air inside the odor bag was appropriately sucked out using a syringe and injected into a PVDF odor bag (5 L) containing a paper tube according to each example that had been prepared separately. The initial concentration of ammonia inside the PVDF odor bag was immediately adjusted to 100 ppm.

[0051] (Adjustment of trimethylamine) A PVDF odor bag (5 L) containing a filter paper (Advantech 100CIRCLES) soaked in an aqueous trimethylamine solution was filled with air, and the air inside the odor bag was appropriately sucked out using a syringe and injected into a PVDF odor bag (5 L) containing a paper tube according to each example, which had been prepared separately. The initial concentration of trimethylamine inside the PVDF odor bag was immediately adjusted to 28 ppm.

[0052] (Hydrogen sulfide adjustment) A PVDF odor bag (5 L) containing a filter paper (Advantech 100CIRCLES) soaked in a hydrogen sulfide aqueous solution was filled with air, and the air inside the odor bag was appropriately sucked out using a syringe and injected into a PVDF odor bag (5 L) containing a paper tube according to each example, which had been prepared separately. The initial concentration of hydrogen sulfide inside the PVDF odor bag was immediately adjusted to 4 ppm.

[0053] (Adjustment of methyl mercaptan) A PVDF odor bag (5 L) containing a filter paper (Advantech 100CIRCLES) soaked in an aqueous solution of methyl mercaptan was filled with air, and the air inside the odor bag was appropriately sucked out using a syringe. The air was then injected into a PVDF odor bag (5 L) containing a separately prepared paper tube according to each example, and the initial concentration of methyl mercaptan inside the PVDF odor bag was immediately adjusted to 8 ppm.

[0054] The concentrations of ammonia, trimethylamine, hydrogen sulfide, and methyl mercaptan were measured by adjusting the concentrations to the initial concentrations, measuring the concentrations after 0 minutes, 30 minutes, and 60 minutes, and calculating the rate of decrease in ammonia concentration from the measured values. Measurements were performed using a Permeator PD-1B and a Gas Detector Tube 3La manufactured by Gastec Corporation. The rate of decrease was calculated by ((measured value after 0 minutes - measured value after 30 or 60 minutes) / (measured value after 0 minutes)) × 100. The results are shown in Table 1.

[0055] [Table 1]

[0056] For ammonia and trimethylamine, the Examples, Comparative Examples, and the blank all showed high reduction rates after 30 and 60 minutes, but the Example had the highest reduction rate after 30 minutes, demonstrating that the present invention provides a rapid deodorizing effect on the malodors originating from ammonia and trimethylamine. Furthermore, even the blank, which was not coated with a deodorizer, showed a high reduction rate, confirming that the paper tube base paper itself absorbs odors to a certain extent. In other words, it was shown that for ammonia deodorization, it is desirable to apply the deodorizer on the inner surface of the paper tube.

[0057] For hydrogen sulfide, the comparative example and blank had almost no deodorizing effect even after 60 minutes, while only the example showed a high reduction rate after 30 and 60 minutes. In particular, the reduction rate after 30 minutes was 82.5%, confirming that the inclusion of silver-loaded zeolite can quickly deodorize hydrogen sulfide.

[0058] For methyl mercaptan, both the Example and Comparative Example showed a deodorizing effect compared to the blank, but the Example showed a reduction rate that was about six times that of the Comparative Example, indicating a high deodorizing effect.

[0059] In the examples, the catechin-based deodorant and tannin-based deodorant exhibit excellent deodorizing effects against ammonia and trimethylamine, and the silver-supported zeolite exhibits rapid deodorizing effects against hydrogen sulfide and methyl mercaptan without inhibiting the deodorizing effects of the catechin-based deodorant and tannin-based deodorant against ammonia and trimethylamine. Therefore, according to the present invention, it is possible to provide toilet rolls and the like that have excellent deodorizing effects against methyl mercaptan, trimethylamine, hydrogen sulfide, and ammonia, which are the main components that cause urine odor and stool odor, and that can also be made fragrance-free. [Explanation of symbols]

[0060] X2...winder device, X3...log accumulator, X4...log cutter equipment, 10...toilet roll, 10R...log, 11L...long paper tube, 11...paper tube, 12...paper tube base paper, 12A...paper tube base paper roll, 13...gluing roll, 14...core winder, 15...shaft, 16...slitter, S1, S2...toilet paper base paper, S3...toilet paper, 51...overlapping unit, 54...contact embossing device, 70...perforation line forming device, 75...winding device, 76...log cutter, (A)...paper tube manufacturing process, (B)...log manufacturing process, (C)...cutting process, 30...glue, 40...deodorant liquid.

Claims

1. A method for manufacturing a toilet roll in which a strip of toilet paper is wound around a paper tube, comprising: a step of mixing a chemical solution containing diethylene glycol monoethyl ether and isopropyl alcohol with a catechin-based deodorant, a tannin-based deodorant, and silver-supported zeolite; The mixed solution is applied to a paper with a thickness of 100 to 400 μm and a basis weight of 130 to 200 g / m ２ 3.0 to 6.0 g / m ２ a step of applying a catechin-based deodorizer, a tannin-based deodorizer, and silver-loaded zeolite to the paper tube base paper by coating the paper tube base paper with the above-mentioned solution; a step of manufacturing a toilet roll using the paper tube base paper so that the application surface is the inner surface of the paper tube; A method for producing toilet rolls, comprising:

2. A method for manufacturing toilet rolls as described in claim 1, wherein no acrylic resin is applied to the areas where the catechin-based deodorizer, tannin-based deodorizer, and silver-loaded zeolite are applied.

3. A method for manufacturing toilet roll as described in claim 1 or 2, wherein the catechin-based deodorizer, tannin-based deodorizer, and silver-loaded zeolite are attached to the fibers that make up the inner surface of the paper tube or are held in the voids between the fibers.

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