JP6825933B2 - Toilet roll - Google Patents

Description

The present invention relates to a toilet roll in which a strip of toilet paper is wrapped around a paper tube, and more particularly to a toilet roll containing a deodorant in the paper tube.

There is toilet paper with a deodorant function in which a deodorant is impregnated in the paper tube of the toilet paper. Such toilet paper with a deodorizing function eliminates the need to separately place an air freshener product, a deodorant product, or the like in the toilet space, thus saving space in the toilet space and simplifying the toilet space.

However, in the toilet roll in which the deodorant function is added to the paper tube of the toilet paper, the deodorant-applied part of the paper tube is browned, and the part that comes into contact with the deodorant-applied surface such as the holding part of the toilet holder is the part. Depending on the material, it may corrode.

JP 2013-180533

Therefore, a main object of the present invention is to provide a toilet roll having a deodorizing function, in which a portion to which a deodorant is applied does not turn brown and an excellent deodorizing effect is exhibited. Further, it is desired to provide a toilet roll having a deodorizing function, which does not corrode a portion in contact with a portion to which a deodorant is applied.

The means for solving the above problems are as follows.

[Invention according to claim 1]
A toilet roll with a strip of toilet paper wrapped around a paper tube.
A deodorant is applied to at least one or all of the inner and outer peripheral surfaces of the paper tube.
A toilet roll characterized in that the deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin and a natural product extract, and satisfies the conditions of A) or C) below .
A) Cyclodextrin is not given maltose.
C) Does not contain maltose-fed cyclodextrin and amino acids.

[Invention according to claim 2]
A toilet roll with a strip of toilet paper wrapped around a paper tube.
A deodorant is applied to at least one or all of the inner and outer peripheral surfaces of the paper tube.
The deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin having a cyclopropyl group, and a natural product extract, and satisfies any of the following conditions A) to C). Characterized toilet roll.
A) Cyclodextrin is not given maltose.
B) Does not contain amino acids.
C) Does not contain maltose-fed cyclodextrin and amino acids.
[Invention according to claim 3]
The toilet roll according to claim 1 or 2, wherein the deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin, and a natural product extract, and further satisfies the condition of a) or c) below. ..
a) Cyclodextrin is not endowed with reducing sugars.
c) It does not contain cyclodextrin and amino acids that have been given reducing sugars.

[Invention according to claim 4 ]
The toilet roll according to claim 1 or 2, wherein the deodorant does not contain hypochlorous acid, hypochlorite and chlorine dioxide.

[Invention according to claim 5 ]
The toilet roll according to claim 1 or 2, wherein the deodorant does not contain at least one of an inorganic acid and an inorganic acid salt that generate a metal-corrosive acidic vaporization gas.

[Invention according to claim 6 ]
The toilet roll according to claim 1 or 2, wherein the deodorant contains at least one of citric acid and malic acid as an organic acid.

[Invention according to claim 7 ]
The toilet roll according to claim 1, wherein the cyclodextrin has a cyclopropyl group.

[Invention according to claim 8 ]
Natural product extract includes at least one of a persimmon extract and tea extract, according to claim 1 or 2 toilet rolls according.

According to the above invention, there is provided a toilet roll having a deodorizing function, in which the deodorant-imparted portion does not turn brown and has an excellent deodorizing effect. Further, a toilet roll having a deodorizing function is provided, which does not corrode a portion in contact with a portion to which a deodorant is applied.

It is a perspective view of the toilet roll which concerns on embodiment of this invention. It is a figure which shows the outline of the manufacturing method of the toilet roll which concerns on embodiment of this invention.

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. However, the present invention is not limited to this embodiment. As shown in FIG. 1, the toilet roll 10 according to the present embodiment is a paper tube 11 wrapped with toilet paper 12 which is a strip-shaped household thin paper. The size of the toilet roll 10 according to the present embodiment is not limited, but the width L1 is 100 to 115 mm, the diameter L2 is 100 to 120 mm, the winding length (total length of the toilet paper) is 18 to 120 m, and the inner diameter of the paper tube. It is desirable that L3 is 35 to 50 mm. If it is this size, a paper holder for a general toilet roll can be used, and the length of the toilet paper is sufficient.

The toilet paper 12 is a household thin paper having a crepe having fine irregularities, but the specific composition and composition thereof are not limited. The toilet paper 12 is preferably 1-ply to 3-ply. The paper thickness is preferably 100 to 350 μm. The rice tsubo per ply is preferably 11.0 to 25.0 g / m ² . Within this range, softness and water absorption during use can be ensured.

The paper density according to the present invention is based on the method of measuring the paper density of JIS P 8124 (1998), and the paper thickness is the same after sufficiently adjusting the humidity under the conditions of JIS P 8111 (1998). The average value measured 5 times using a dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (manufactured by Ozaki Seisakusho) under the conditions.

In the toilet roll 10 according to the present embodiment, a deodorant is applied to at least a part or all of the inner peripheral surface 11A and the outer peripheral surface 11B of the paper tube 11. And in particular, this deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin, and a natural product extract. Organic acids chemically deodorize odorous components such as ammonia, which is a component of urine odor, and cyclodextrin deodorizes these by encapsulating odorous components in the toilet such as urine odor and fecal odor. The natural product extract chemically deodorizes hydrogen sulfide, methyl mercaptan, trimethylamine, etc., which are known as malodorous components in toilet spaces. Effective deodorization of the toilet space is developed by these complex and synergistic effects. The amount of the deodorant applied to the paper tube is not particularly limited and can be appropriately designed.

Examples of organic acids include lactic acid, tartaric acid, malic acid, fumaric acid, succinic acid, citric acid, glutaric acid, amino acids, adipic acid, and ascorbic acid. Examples of the organic acid salt include lactate, tartrate, malate, fumarate, succinate, citrate, glutarate, amino acid salt, adipate, and ascorbate. Examples of the inorganic base forming the salt include hydroxides, oxides, carbonates, and hydrogen carbonates of alkali metals or alkaline earth metals such as sodium, potassium, lithium, calcium, and magnesium. Examples of the organic base include compounds having a nitrogen-containing base, for example, a primary, secondary or tertiary amine, imino group, guanidino group, imidazolino group, imidazolyl group, pyridyl group and the like. It is desirable that the organic acid and the organic acid salt are highly safe for the human body in consideration of the fact that the toilet paper constituting the toilet roll comes into direct contact with the human body. Further, the organic acid is preferably one that is hard to vaporize and preferably has four or more carbon atoms. From this point of view, particularly preferable organic acids are citric acid and malic acid.

Cyclodextrin generally includes α-cyclodextrin (6 glucose), β-cyclodextrin (7 glucose), and γ-cyclodextrin (8 glucose) depending on the number of bound glucose, and these α and β Each cyclodextrin of, γ has a different inner diameter, and a guest molecule corresponding to the inner diameter is taken into the inside. That is, the deodorizing effect is exhibited by taking in the malodorous component of the toilet space as a guest molecule to form an inclusion body. The inner diameter of cyclodextrin is 0.5 to 0.6 nm for α-cyclodextrin, 0.7 to 0.8 nm for β-cyclodextrin, and 0.9 to 1.0 nm for γ-cyclodextrin. The type of cyclodextrin used in the present invention is not necessarily limited, but it is inexpensive, and ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine, etc., which constitute urine odor and fecal odor, which are malodorous components in the toilet space, are effective. Β-Cyclodextrin is suitable because of inclusion. Further, the cyclodextrin according to the present embodiment may be chemically modified.

Natural product extract is a component that exerts a deodorizing effect derived from natural products extracted from plants such as tea persimmons and grapes and processed products of plants. More specifically, those containing polyphenols, polyphenol derivatives, polyphenol analogs, etc. extracted from plants and processed products of plants. Polyphenols, polyphenol derivatives and polyphenol analogs have a high deodorizing function for ammonia, which is one of the malodorous components in the toilet space, due to the reaction of phenolic hydroxyl groups and the like. Of course, some natural product extracts are reactive with hydrogen sulfide, methyl mercaptan, and trimethylamine in addition to ammonia and have a deodorizing function, and such extracts may be used. More preferred specific examples of polyphenols are tannin, catechin, rutin, anthocyanin, ellagic acid, coumarin and flavone. More preferable specific examples of the polyphenol derivative are a tannin derivative, a catechin derivative, a rutin derivative, an anthocyanin derivative, an ellagic acid derivative, a coumarin derivative, and a flavone derivative. More preferred specific examples of polyphenol analogs are tannin precursor, catechin precursor, rutin precursor, anthocyanin precursor, ellagic acid precursor, coumarin precursor, flavon precursor. These have a particularly high deodorizing effect on the malodorous components of the toilet. Among the above specific examples, particularly preferable ones are tannin, tannin derivative and tannin precursor and catechin, catechin derivative and catechin precursor. Among the tannins, persimmon-derived persimmon tannin has a very large molecular weight and is extremely excellent in deodorizing effect, and tea-derived tea catechin also exhibits excellent deodorizing effect. Therefore, it is desirable that the natural product extract according to the present embodiment contains at least one of a persimmon extract and a tea extract.

On the other hand, deodorants characteristically, A) or not to cyclodextrin is granted maltose, those containing no cyclodextrin and an amino acid with C) maltose was granted. That is, the deodorant does not contain the maltose-added cyclodextrin and amino acids together. More preferably, the deodorant is one in which a) cyclodextrin is not added with a reducing sugar , or c) cyclodextrin to which a reducing sugar is added and amino acids are not contained. Particularly preferably, it does not contain a reducing sugar, particularly a cyclodextrin to which maltose has been added, and an amino acid. According to the present inventors, in a toilet roll in which a paper tube is provided with a deodorant function, the deodorant-added portion of the paper tube is browned because cyclodextrin in the deodorant is a reducing sugar, particularly maltose. It was found that it was given and that it occurred particularly remarkably when the deodorant contained amino acids as a buffer or the like. It should be noted that adding a reducing sugar, particularly maltose, to cyclodextrin is carried out in order to increase the hydrophilicity of cyclodextrin and improve the handleability such as manufacturability. In the deodorant according to the present invention, cyclodextrin is not added with a reducing sugar, particularly maltose, or does not contain an amino acid, or cyclodextrin and an amino acid added with maltose. The deodorant-added portion of the paper tube does not turn brown remarkably because it does not contain both. Here, when a deodorant containing a reducing sugar, particularly a cyclodextrin to which maltose is added and an amino acid is applied to a paper tube, the cause of the browning of the applied portion is not clear, but the amino compound and the reducing group. It is presumed that this is due to the Maillard reaction that chemically reacts with sugars having maltose to produce various browning substances (melanoidins). If both cyclodextrin to which reducing sugar, especially maltose is added, and amino acids are not contained, browning is remarkably improved and browning is almost eliminated. Therefore, the deodorant is reduced. It is particularly desirable that the cyclodextrin to which sugar, particularly maltose is added, and the amino acid are not contained.

However, as described above, if the deodorant does not contain any of reducing sugars, particularly cyclodextrin to which maltose has been added and amino acids, the browning is improved, particularly to an acceptable degree in appearance. Therefore, if the cyclodextrin is not endowed with a reducing sugar, particularly maltose, it may contain an amino acid as the organic acid. In this case, amino acids are one of the effective organic acids.

On the other hand, cyclodextrin is preferably hydrophilic. Examples of the cyclodextrin with enhanced hydrophilicity include cyclodextrins to which a cyclopropyl group is added. Since the addition of reducing sugars, especially maltose, enhances the hydrophilicity of cyclodextrin, when the deodorant does not contain amino acids as described above, reducing sugars, especially cyclodextrins to which maltose is added, can be used. A preferred cyclodextrin is a cyclodextrin with a cyclopropyl group.

On the other hand, it is desirable that the deodorant does not contain hypochlorous acid, sodium hypochlorite and chlorine dioxide (including stabilized chlorine dioxide). These may generate acidic vaporized gas that has a strong metal corrosive action such as hydrogen chloride, and the acidic vaporized gas has a deodorizing effect such as ammonia, but the material of the toilet roll holder is easily corroded. In some cases, it may corrode the toilet roll holder. More preferably, the deodorant should be free of at least one of an inorganic acid and an inorganic acid salt that generate an acidic vaporizing gas having metal corrosiveness. Specific examples of the acidic vaporized gas having strong metal corrosiveness include hydrogen chloride, hydrogen sulfide, and nitrogen dioxide. It is desirable that it does not contain inorganic acids and inorganic acid salts that are sources of these substances.

The deodorant according to the present invention contains an organic acid and an organic acid salt, which have a deodorizing effect on ammonia. Therefore, the deodorant according to the present invention exhibits a sufficient deodorizing effect by containing an organic acid and an organic acid salt even when it does not contain a substance that generates an acidic vaporized gas having strong metal corrosiveness. In particular, the organic acid or the like according to the present invention sufficiently exhibits a deodorizing effect even if it has little vaporization property.

The deodorant can be applied to the paper tube 11 of the toilet roll 10 as follows in the manufacturing process of the toilet roll. Generally, as shown in FIG. 2, a method for manufacturing a toilet roll includes a step (A) of manufacturing a long paper tube 30 and winding a wide toilet paper base paper 72 around the long paper tube 30. It has a log manufacturing process of manufacturing a log 70 having the same diameter as the product toilet roll and a width of the log 70, and a cutting step (C) of cutting the log 70 into product widths to make individual toilet rolls 10. A specific example of the step (A) for manufacturing the long paper tube 30 is one of a plurality of (two sheets in the illustrated example) strip-shaped base papers 31 and 32 unwound from the original rolls 31A and 32A. Glue is applied to one side of the paper tube base paper 31 by a gluing roll 51, the other paper tube base paper 32 is partially overlapped on the glued side of the one paper tube base paper 31 in the width direction, and the other paper tube base paper 31 is partially overlapped. The surface of the 32 that does not come into contact with the glued surface is set as the surface facing the mandrel shaft 52, that is, the surface that becomes the inner surface of the paper tube, and the paper tube base papers 31 and 32 are spirally wound around the mandrel shaft 52 to continuously form a tubular portion. A long spiral paper tube 30 (also referred to as a spiral paper tube) is formed by cutting the tubular portion with a cutter to a width of a plurality of times or more the width of the toilet roll. This spiral paper tube has a two-layer laminated structure in which one paper tube base paper 31 is on the outer surface side of the paper tube and the other paper tube base paper 32 is on the inner surface side of the paper tube. It is desirable that the paper tube base papers 31 and 32 have a basis weight of 120 to 220 g / m ² and a paper thickness of 150 to 500 μm.

In the step of forming the long paper tube 30 in this way, the deodorant is applied to one or both of the original rolls 31A and 32A until the mandless shaft is wound up. It can be applied by providing a coating machine 61 or a coating device (in the illustrated example, it is applied to the paper tube base paper 32). The coating machine 61 can be appropriately selected from known printing machines such as a flexographic printing machine and a gravure printing machine. Further, a spray coating device or a rotor dampening coating device may be used. As a mode of applying the deodorant 41 by the coating machine 61, in addition to solid printing, appropriate pattern printing such as halftone dots, circles, and blocks, pattern printing such as figures, and character printing can be applied. Depending on which side of the paper tube base paper of the plurality of paper tubes, the deodorant is applied to either or both of the outer peripheral surface and the inner peripheral surface of the paper tube, and further to which part. Can be selected. After applying the deodorant to the paper tube base paper, the applied portion may be dried by the heater (dryer) 62. The amount of the deodorant applied to the paper tube may be appropriately selected in consideration of operability and deodorizing performance.

Next, the deodorant effect, corrosiveness, and browning of the paper tube to which the deodorant was applied according to the examples, comparative examples, and conventional examples of the present invention were tested. The sample according to each example has an inner diameter of 42 mm, a length of 114 mm, a base paper basis weight of 170 g / m ² , and a width of about 114 mm along the longitudinal direction with respect to the outer peripheral surface of a paper tube having a paper thickness of 200 μm. It was assumed that 0.12 mL of the deodorant according to the combination of the components shown in Table 1 was added. In addition, each test was conducted as follows.

(Deodorant effect test)
One paper tube according to each example to which a deodorant was applied was put into a 10 L closed container containing ammonia having a concentration of 100 ppm simulating urine odor, and the concentration of ammonia after 1 hour was measured by the detector tube method. did. For the detection of the concentration of ammonia, a detector (GV-100S) and a detector tube (3L and 3La) manufactured by Gastec Co., Ltd. were used. Regarding the deodorizing effect, the reduction rate (deodorizing rate) of ammonia in a certain space was measured using a detector tube. A deodorization rate of 85% or more was evaluated as "◯", 84 to 50% was evaluated as "Δ", and 49 to 0% was evaluated as "x".

(Browning test)
As described above, 0.12 mL of the deodorant was applied to a 114 mm wide paper tube, and then the deodorant was visually allowed to stand in a constant temperature bath adjusted to an environment of 50 ° C. and 50% RH for 14 days. I confirmed the given part. Those that were significantly browned were evaluated as "x", those that were browned were evaluated as "△", those that were slightly browned were evaluated as "○", and those that could not be confirmed to be browned were evaluated as "◎".

(Corrosiveness test)
A container with a capacity of 50 mL was filled with a deodorant, an iron plate with a length of 5 cm and a width of 2 cm was immersed in this deodorant for 1 hour, washed with water and air-dried, and after 24 hours, the discoloration of the iron plate was visually confirmed. .. Those with discoloration were evaluated as "x", those with slight discoloration were evaluated as "Δ", and those without discoloration were evaluated as "○".

As shown in Table 1 above, in the examples of the present invention, the deodorant property was excellent, and the browning was also excellent. The deodorant effect was 95% or more in Examples 1 to 4, about 85% in Comparative Example 1, and about 50% in Comparative Example 2. In Comparative Example 2, browning and corrosiveness were not a problem, but the deodorizing effect was not sufficiently exhibited.

It was also confirmed that it is desirable that at least one of the inorganic acid and the inorganic acid salt that generate an acidic vaporized gas having metal corrosiveness is not contained in the corrosiveness.

From the above, according to the present invention, a toilet roll having a deodorizing function, which exhibits an excellent deodorizing effect without browning the deodorant-imparted portion, is provided, and further comes into contact with the deodorant-applied portion. It was confirmed that a toilet roll having a deodorant function that does not corrode the part is also provided.

10 ... Toilet roll, 31A, 32A ... Original roll, 31,32 ... Paperboard base paper, 51 ... Gluing roll, 30 ... Long paper tube, 52 ... Mandrel shaft, 61 ... Coating machine, 62 ... Dryer, 41 ... Deodorant, 70 ... Log, 72 ... Toilet paper base paper, 91 ... Log cutter, 11 ... Paper tube, 11A ... Paper tube inner surface, 11B ... Paper tube outer surface, 12 ... Toilet paper, L1 ... Toilet roll width, L2 ... Toilet roll diameter, L3 ... Paper tube inner diameter.

Claims (8)

A toilet roll with a strip of toilet paper wrapped around a paper tube.
A deodorant is applied to at least one or all of the inner and outer peripheral surfaces of the paper tube.
A toilet roll characterized in that the deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin and a natural product extract, and satisfies the conditions of A) or C) below .
A) Cyclodextrin is not given maltose.
C) Does not contain maltose-fed cyclodextrin and amino acids. A toilet roll with a strip of toilet paper wrapped around a paper tube.
A deodorant is applied to at least one or all of the inner and outer peripheral surfaces of the paper tube.
The deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin having a cyclopropyl group, and a natural product extract, and satisfies any of the following conditions A) to C). Characterized toilet roll.
A) Cyclodextrin is not given maltose.
B) Does not contain amino acids.
C) Does not contain maltose-fed cyclodextrin and amino acids. The toilet roll according to claim 1 or 2, wherein the deodorant contains at least one of an organic acid and an organic acid salt, cyclodextrin, and a natural product extract, and further satisfies the condition of a) or c) below. ..
a) Cyclodextrin is not endowed with reducing sugars.
c) It does not contain cyclodextrin and amino acids that have been given reducing sugars. The toilet roll according to claim 1 or 2, wherein the deodorant does not contain hypochlorous acid, hypochlorite and chlorine dioxide. The toilet roll according to claim 1 or 2, wherein the deodorant does not contain at least one of an inorganic acid and an inorganic acid salt that generate a metal-corrosive acidic vaporization gas. The toilet roll according to claim 1 or 2, wherein the deodorant contains at least one of citric acid and malic acid as an organic acid. The toilet roll according to claim 1, wherein the cyclodextrin has a cyclopropyl group. The toilet roll according to claim 1 or 2, wherein the natural product extract contains at least one of a persimmon extract and a tea extract.

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