Cleaning wet sheet

Abstract

Provided is a wet sheet (100) for cleaning, which is impregnated with a chemical solution that is adjusted to be weakly alkaline with a pH of 8.0-9.0 and into which xanthoxylin as a mite repellent is dissolved, and which can appropriately remove sebum and oil stains adhering to a surface to be cleaned and can impart a repellent effect against indoor dust mites to the surface to be cleaned after wiping and cleaning, the wet sheet (100) for cleaning being impregnated with a chemical solution that has been adjusted to be weakly alkaline with a pH of 8.0-9.0 and into which xanthoxylin as a mite repellent is dissolved.

Description

Technical Field

[0001] The present invention relates to a wet cleaning sheet capable of imparting a repellent effect on house dust mites to a surface to be cleaned after wiping and cleaning. Background Art

[0002] Conventionally, dry cleaning sheets impregnated with a house dust mite repellent component are known (for example, see Patent Documents 1 and 2).

[0003] When the cleaning sheet is used for wiping and cleaning, the dust mite repellent component is rubbed onto the cleaned surface, so that the dust mite repellent effect can be imparted to the cleaned surface after wiping and cleaning.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2020-111563

[0007] Patent Document 2: Japanese Patent No. 5004468 Summary of the invention

[0008] However, since the cleaning sheets of Patent Documents 1 and 2 are dry, although the cleaning sheets can be used to capture dust and dirt and remove dust and dirt from the cleaned surface, they are not suitable for wiping or removing sebum and oily dirt attached to the cleaned surface.

[0009] Furthermore, since the mite repellent component impregnated in the cleaning sheets of Patent Documents 1 and 2 is an organic acid ester, which has poor solubility in water, it is difficult to spread the cleaning sheets into a wet type.

[0010] Furthermore, since the liquid medicine impregnated in the cleaning sheet (wet type) for removing sebum and oil is generally weakly alkaline, even if the cleaning sheets of Patent Documents 1 and 2 are expanded to wet type, the organic acid esters may be hydrolyzed, and their medicinal effects may not be fully exerted.

[0011] An object of the present invention is to provide a wet cleaning sheet that can provide a repellent effect on house dust mites to a surface to be cleaned after wiping and cleaning.

[0012] In order to solve the above problems, the invention described in claim 1 is characterized in that it is a cleaning wet sheet in which a base paper sheet is impregnated with a chemical solution, and the chemical solution contains at least xanthoxylum bungeanum.

[0013] The invention described in claim 2 is characterized in that, in the cleaning wet sheet described in claim 1, the chemical solution contains water as a solvent and contains at least one of ethanol and a surfactant.

[0014] The invention described in claim 3 is characterized in that, in the cleaning wet sheet described in claim 1, the chemical solution is adjusted to be weakly alkaline.

[0015] The invention described in Technical Solution 4 is characterized in that, in the cleaning wet sheet described in any one of Technical Solutions 1 to 3, a plurality of convex embossings and concave embossings are formed on the above-mentioned base paper sheet, respectively, the above-mentioned convex embossings are convex embossings on the first surface, and the above-mentioned concave embossings are convex embossings on the second surface.

[0016] According to the present invention, a wet cleaning sheet can be obtained which can provide a repellent effect against house dust mites to a surface to be cleaned after wiping and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view showing a cleaning tool to which the wet cleaning sheet according to the present embodiment is attached.

[0018] Figure 2 It is a top view showing the wet cleaning sheet according to the present embodiment.

[0019] Figure 3 This is a diagram for explaining a test on the repellency of mites. DETAILED DESCRIPTION

[0020] Hereinafter, a wet cleaning sheet 100 according to an embodiment of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to the examples shown in the drawings, but is always determined based on the description of the scope of the claims.

[0021] It should be explained that, Figure 1 The front and rear, left and right, up and down, X direction, Y direction, and Z direction are defined and described. In the present specification, “to” is used to include the numerical values ​​described before and after it as the lower limit and the upper limit.

[0022] [1. Description of the structure]

[0023] First, the structure of the cleaning wet sheet 100 will be described.

[0024] [(1) Status during use]

[0025] like Figure 1 As shown, the cleaning wet sheet 100 is, for example, a sheet that is replaceably mounted on a cleaning tool 200 and is mainly used for cleaning the floor, and is a sheet in which a chemical solution is impregnated in a base paper sheet, wherein the cleaning tool 200 has a rectangular flat-plate-shaped head 201 and a handle 202 mounted on the upper surface of the head 201.

[0026] By attaching the cleaning wet sheet 100 to the head 201 of a cleaning tool 200 having a long rod-shaped handle 202, it is easy to wipe and clean not only the floors of living spaces such as floors and tatami mats, but also the floors covered by furniture, home appliances, etc. (the floors in gaps).

[0027] It should be noted that the base paper sheet here refers to the state before the cleaning wet sheet 100 is impregnated with the chemical solution.

[0028] like Figure 2 As shown, the cleaning wet sheet 100 is formed in a rectangular shape and has a cleaning surface that covers the bottom surface of the head 201 of the cleaning tool 200.

[0029] Specifically, if Figure 1 As shown, the cleaning wet sheet 100 covers the bottom surface of the head 201 of the cleaning tool 200 with the cleaning surface of the sheet, and is bent along the long side edge 201a of the head 201 of the cleaning tool 200 at the fold line S and is clamped on the upper surface of the head 201, so as to be used in a state installed on the cleaning tool 200.

[0030] It should be noted that the long side edge portion 201a refers to an edge portion along the long side direction of the head portion 201. That is, it refers to two longer edge portions among the four edge portions of the rectangular head portion 201.

[0031] [(2) Original paper]

[0032] The base paper sheet is a nonwoven fabric produced by bonding predetermined fibers by a known technique such as spunlacing, hot air, air-laid, point bonding, spunbonding, needle punching, etc. A nonwoven fabric produced by spunlacing is particularly preferred.

[0033] Specifically, as the base paper sheet, for example, a nonwoven fabric produced by mixing hydrophilic fibers and hydrophobic fibers and then bonding these fibers is used.

[0034] [a Hydrophilic fiber]

[0035] As the hydrophilic fiber, natural fibers such as cotton, pulp, and hemp, and regenerated fibers such as rayon and ketone ammonia fibers can be used. However, from the viewpoint of maintaining water retention, pulp, rayon, polypropylene spunbond fibers (PPSB), etc. are preferably used.

[0036] The blending ratio of the hydrophilic fibers in the fibers constituting the base paper sheet is preferably 35% by mass to 75% by mass.

[0037] [b Hydrophobic fiber]

[0038] As hydrophobic fibers, polyolefin fibers such as polyethylene (PE), polypropylene (PP), polyvinyl alcohol, polyester fibers such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), acrylic fibers, etc. can be cited, which can be used alone or in combination of two or more. As two or more composite fibers, core-sheath type with a relatively low melting point resin (low melting point resin) as a sheath and a relatively high melting point resin (high melting point resin) as a core, and side back type with low melting point resin and high melting point resin arranged in parallel in a specified direction can be cited.

[0039] The blending ratio of the hydrophobic fibers in the fibers constituting the base paper sheet is preferably 25% by mass to 65% by mass.

[0040] [cWeight per unit area]

[0041] From the viewpoint of achieving a balance between dirt holding capacity and sheet softness, the basis weight of the base paper sheet is preferably 50 to 100 g / m 2 In addition, the weight per unit area is a basis weight measured according to JIS P8124:2011.

[0042] [(3) Liquid medicine]

[0043] As the chemical solution impregnated into the base paper sheet as described above, a chemical solution having a weak alkalinity of a hydrogen ion index (pH) of 8.0 to 9.0 and containing at least xanthoxylum bungeanum is used.

[0044] Zanthoxylum bungeanum is a plant-derived ingredient contained in the peels of Zanthoxylum bungeanum, Sansho, Tallow tree, Blumea balsamifera, pomegranate, etc., and can be used as a mite repellent.

[0045] The content of anthocyanin in the liquid medicine is preferably 0.01% to 0.02% by mass. Within this range, a good mite repellent effect can be exerted while keeping the manufacturing cost within an appropriate range. The mite repellent effect here refers to the repellent effect against house dust mites.

[0046] In addition, the drug solution contains water as a solvent and at least one of ethanol and a surfactant. More preferably, it contains both ethanol and a surfactant.

[0047] By making the drug solution containing water as a solvent contain at least one of ethanol and a surfactant, it is easy to dissolve xanthoxylum bungeanum in the drug solution.

[0048] The chemical solution is impregnated at 150% to 450% by mass, preferably 180% to 350% by mass, based on the mass of the base paper sheet when dried.

[0049] The chemical solution is impregnated in the dry base paper sheet and released from the cleaning surface of the sheet when the cleaning wet sheet 100 is used.

[0050] [(4) Embossing]

[0051] like Figure 1 and Figure 2 As shown, the cleaning wet sheet 100 is provided with embossing 20. The embossing 20 improves the dirt-removing performance on the surface to be cleaned by making the sheet have concave-convex surfaces and using the concave-convex surfaces to scrape off dirt. Therefore, the embossing 20 is a portion formed by compressing the sheet in the Z direction.

[0052] For example Figure 2 As shown, the embossing 20 is formed into a so-called gourd shape that is short in one direction and narrow in width when viewed from above, and has a constricted portion approximately in the center of the long axis direction. The shape of the embossing 20 is not limited to this, and may be, for example, various shapes such as polygons, or a shape obtained by combining various shapes, but from the viewpoint of improving the scraping performance of dirt, such a gourd shape is preferred.

[0053] Such embossing 20 can be formed by, for example, hot embossing under conditions of a temperature of 80° C. to 200° C. and an embossing pressure of 0.2 MPa to 1.0 MPa. When forming the embossing 20 by hot embossing, a roller having at least an outer peripheral surface made of carbon steel, stainless steel, or a cured resin such as polypropylene or ABS (Acrylonitrile Butadiene Styrene) resin can be used as a convex embossing roller. Among them, a roller made of stainless steel is preferably used from the viewpoint of durability and heat resistance.

[0054] When embossing is performed by heat embossing, it is preferably performed before the step of impregnating the cleaning wet sheet 100 with a chemical solution from the viewpoint of facilitating the provision of a concavo-convex shape.

[0055] [a convex embossing, concave embossing]

[0056] As the embossing 20, there are formed a convex embossing 21 which is convex on the upper side in the Z direction (the first surface side of the cleaning wet sheet 100) and a concave embossing 22 which is convex on the lower side (the second surface side of the cleaning wet sheet 100) (i.e., concave toward the upper side in the Z direction). In the drawings, the convex embossing 21 is indicated by a solid line, and the concave embossing 22 is indicated by a dotted line.

[0057] The convex embossing 21 is formed to be 5 mm to 10 mm, preferably 6 mm to 8 mm, in the long axis direction, 2 mm to 5 mm, preferably 3 mm to 4 mm, in the short axis direction orthogonal to the long axis direction, and 0.5 mm to 2 mm, preferably 0.7 mm to 1.5 mm in the Z direction (height from the middle part (described later)). The concave embossing 22 is formed to be in a shape that is opposite to and substantially the same as the convex embossing 21 in cross-sectional observation, and is formed to be convex to the lower side in the Z direction.

[0058] [b middle part]

[0059] An intermediate portion is formed between the embossings 20 formed on the wet cleaning sheet 100. The intermediate portion is a portion where the embossings 20 are not formed, and is therefore located lower than the convex embossings 21 and higher than the concave embossings 22 in the Z direction.

[0060] [cEmbossed pattern]

[0061] In the cleaning wet sheet 100 of this embodiment, for example Figure 2 As shown, it is arranged in the following manner: the first embossed block 30 of a rhombus is formed by a combination of a convex embossing 21 and a concave embossing 22, and the first direction ( Figure 2 The angle formed by the first embossing block 30 and the long axis direction is 5° to 45°, preferably 15° to 35°. The first embossing block 30 continuously forms an embossing block row 31 from the first side a to the second side b, and a plurality of the embossing block rows 31 are continuously arranged from the third side c to the fourth side d. In the adjacent first embossing block row 31 and the second embossing block row 31, the first embossing block 30 in the first embossing block row 31 and the adjacent second embossing block 30 in the second embossing block row 31 are arranged in a second direction ( Figure 2 There is overlap in the Y direction), and there is at least one convex embossing 21 and concave embossing 22 on a straight line extending perpendicularly from an arbitrary point on the third side c to the fourth side d.

[0062] [d Non-embossed part]

[0063] like Figure 2 As shown, between adjacent embossed blocks 30, there is provided a non-embossed portion 40 which is a portion that is not compressed in the Z direction and has raised hairs compared to the portion of the wet cleaning sheet 100 where the embossing 20 is formed.

[0064] The non-embossed portion 40 can be formed by designing a convex embossing roll for forming the embossing 20 so as to remove the shape of the non-embossed portion 40, or by compressing the embossing 20 slightly more than the compressed portion to such an extent that fuzz remains.

[0065] By providing 25% to 50% of the non-embossed portion 40 relative to the area of ​​the wet cleaning sheet 100, the occurrence of wiping streaks can be reduced, and the wet cleaning sheet 100 with excellent erasability can be obtained. It is most preferred that the non-embossed portion 40 be provided at 25% relative to the area of ​​the wet cleaning sheet 100.

[0066] It should be noted that when the cleaning wet sheet 100 is mounted on the cleaning tool 200 for wiping and sweeping, it is usually moved substantially perpendicularly to the X direction or the Y direction. Figure 2 As shown, when the non-embossed portion 40 is formed in a straight line, there is a concern that wiping streaks may be easily generated due to the angle of the wet cleaning sheet 100. Therefore, it is more preferable to arrange the embossed block 30 so that the non-embossed portion 40 is not formed in a straight line.

[0067] [2.Explanation of the effect]

[0068] The wet cleaning sheet 100 of the present embodiment is provided with embossed blocks 30 (embossed block array 31) each including a plurality of convex embossings 21 that are convex embossings on the first surface and a plurality of concave embossings 22 that are convex embossings on the second surface.

[0069] The cleaning wet sheet 100 of the present embodiment is impregnated with a weakly alkaline chemical solution having a hydrogen ion index (pH) of 8.0 to 9.0.

[0070] With such a cleaning wet sheet 100, dirt on the surface to be cleaned can be scraped off by utilizing the unevenness of the embossing 20 (convex embossing 21, concave embossing 22), sebum and oil stains adhering to the surface to be cleaned can be removed, and wiping cleaning can be performed appropriately to wipe off dirt.

[0071] The chemical solution impregnated in the wet cleaning sheet 100 is weakly alkaline, so that damage to the surface to be cleaned, such as the floor, can be suppressed, and sebum and oil stains adhering to the surface to be cleaned can be appropriately removed.

[0072] In particular, since the cleaning wet sheet 100 of this embodiment is impregnated with a liquid containing peppermint as a mite repellent, the liquid can be applied to the cleaned surface after being wiped with the cleaning wet sheet 100, thereby imparting the mite repellent effect brought by peppermint to the cleaned surface.

[0073] Thus, the cleaning wet sheet 100 of this embodiment can provide a mite repellent effect to the cleaned surface after wiping and sweeping, so that the mite repellent effect can be provided to the cleaned surface while wiping off sebum dirt and the like attached to the floor.

[0074] Of course, the convex-concave embossing 20 (convex embossing 21 and concave embossing 22) of the wet cleaning sheet 100 can be utilized to capture dust and dirt, thereby appropriately removing dust and dirt from the surface to be cleaned.

[0075] Furthermore, according to the wet cleaning sheet 100 of the present embodiment, by disposing the embossing 20 as described above, the dirt erasing performance can be improved by utilizing the unevenness of the sheet, and the following effects can be obtained.

[0076] That is, generally, when the cleaning wet sheet 100 is mounted on the cleaning tool 200 having the head 201 and wiping and cleaning is performed, the cleaning wet sheet 100 is moved in the first direction ( Figure 2 X direction) or the second direction ( Figure 2 However, if the embossing patterns are arranged in series so as to be aligned along the first direction or the second direction, sometimes positions not wiped off by the embossing patterns (so-called "wiping streaks") are produced on the cleaned surface. Even though liquid medicine still remains in the sheet, the user who sees the wiping streaks may judge that the liquid medicine has been used up and dried, and discard the sheet, which may result in unnecessary use of too much sheet.

[0077] On the other hand, when the cleaning wet sheet 100 having the embossed pattern as described above is installed and arranged so that at least one convex embossing 21 exists on a straight line extending perpendicularly from an arbitrary point on the third side c to the fourth side d, at least in the second direction ( Figure 2 When wiping and sweeping is performed in the Y direction, the convex embossings 21 have overlapping edges, thereby reducing the generation of wiping streaks.

[0078] In addition, by providing a non-embossed portion 40 of 25% to 50% of the area of ​​the wet cleaning sheet 100 between each embossed block 30 instead of providing the embossing 20 on the entire surface of the wet cleaning sheet 100, when wiping and sweeping with the wet cleaning sheet 100, the convex embossing 21 protruding more than the non-embossed portion 40 is subjected to a greater pressure, so that the release of the liquid is improved, and the generation of wiping streaks can be further reduced.

[0079] In addition, by subjecting the convex embossing 21 to a greater pressure, the scraping performance of the convex embossing 21 is improved, and garbage is easily accumulated in the non-embossed portion 40, so that the garbage collection performance can be improved. In addition, even if the scraping performance of the convex embossing 21 and the garbage collection performance of the wet cleaning sheet 100 are improved, the non-embossed portion 40 is not easy to contact the cleaned surface due to the convex embossing 21, so the increase in wiping resistance can be suppressed.

[0080] In addition, since the embossed block 30 is a rhombus formed by the embossing 20 with an angle of 5° to 45°, preferably 15° to 35°, formed between the first direction and the long axis direction, when a plurality of embossed block rows 31 arranged continuously from the first side a to the second side b are arranged continuously from the third side c to the fourth side d, the embossed blocks 30 are necessarily arranged to be offset with respect to the first direction of the wet cleaning sheet 100. In addition, when the user performs wiping and cleaning, a margin is generated in the angle at which the wet cleaning sheet 100 is moved.

[0081] Furthermore, since the embossed pattern 20 is elliptical in shape and has a constricted portion substantially in the center in the long-axis direction, it is possible to improve the dirt scraping performance.

[0082] Example

[0083] Next, the results of evaluating the examples and comparative examples of the present invention will be described. Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to these.

[0084] <Preparation of liquid medicine samples>

[0085] As the anti-mite cleaning liquid, the liquids of Example 1, Comparative Example 1 and Comparative Example 2 were prepared according to the components and their blending (mass %) shown in Table 1.

[0086] The drug solution of Example 1 was not turbid and was a generally transparent liquid.

[0087] The drug solutions of Comparative Examples 1 and 2 were white turbid liquids.

[0088] In addition, as the cleaning liquid for wiping off sebum and oil stains, each liquid was adjusted to be weakly alkaline.

[0089] [Table 1

[0090] Example 1 [%] Comparative Example 1 [%] Comparative Example 2 [%] Purified water 95.248 95.210 95.210 Ethanol 2.000 2.000 2.000 Diethylene glycol monobutyl ether 1.000 1.000 1.000 Sterilizer and preservative 1.000 1.000 1.000 Sodium hydroxide (5% solution) 0.200 0.200 0.200 Glycine 0.163 0.163 0.163 Sodium chloride 0.127 0.127 0.127 Surfactants 0.250 0.250 0.250 Dibutyl Sebacate 0.035 Benzyl salicylate 0.030 0.015 Benzyl benzoate 0.020 Zanthoxylum bungeanum 0.012 pH 8.37 8.21 8.48

[0091] As the base paper sheet, the fiber composition used was PET / pulp / rayon / PP / PP·PE=15 / 38 / 30 / 12 / 5, and the weight per unit area was 100 g / m 2 Nonwoven fabrics, implemented Figure 2 The embossed base paper sheet shown.

[0092] Three types of samples of wet cleaning sheets were prepared by impregnating the base paper sheets with 300% of each chemical solution (sample of Example 1, sample of Comparative Example 1, and sample of Comparative Example 2).

[0093] <Test method for preventing dust mites; Preparation of test pieces>

[0094] A reproduction test was conducted when the surface of a floor material commonly used in a floor was wiped and cleaned with the cleaning wet sheet 100. Here, a floor material of 27 mm×27 mm was used for the reproduction test.

[0095] Specifically, pillars having the same thickness as the floor material were provided on the left and right of a 27 mm×27 mm floor material, a sample of a cleaning wet sheet was placed on the right pillar, and a weight of 150 g was placed on the sample.

[0096] Next, the sample of the cleaning wet sheet with a heavy object placed thereon is moved to the left support post in about 2 seconds, and then moved from the left support post to the right support post in about 2 seconds.

[0097] In this manner, the wet cleaning sheet sample was used to simulate one reciprocating wiping and sweeping operation on the floor material between the left and right pillars.

[0098] The sample of the wet cleaning sheet was fixed to the bottom of a 300 ml beaker with a rubber band, and about 10 ml of water was poured into the beaker to make it 150 g, and the weight was reciprocated once. It should be noted that the weight of 150 g was set to reproduce the cleaning process when the cleaning tool 200, which is a mop, was used for wiping.

[0099] The floor material subjected to the simulated mopping and sweeping was used in the actual test.

[0100] Thus, five floor materials (test pieces) were prepared after being wiped and cleaned using samples (sample of Example 1, sample of Comparative Example 1, sample of Comparative Example 2) of the cleaning wet sheet impregnated with each chemical solution.

[0101] The floor material after wiping and sweeping using the sample of Example 1 was designated as Test Piece A, the floor material after wiping and sweeping using the sample of Comparative Example 1 was designated as Test Piece B, and the floor material after wiping and sweeping using the sample of Comparative Example 2 was designated as Test Piece C.

[0102] <Test method for preventing mites; actual test>

[0103] Using the test pieces subjected to the simulated wiping and sweeping, a repellent test against house dust mites in accordance with JIS L 1920 was carried out to confirm the repellent effect of each test piece. In addition, a reference test using a blank sample (untreated floor material) was also carried out.

[0104] Here, five test pieces (A, B, C, blank sample) were prepared, and the repellency test was performed five times.

[0105] The test method (steps) is described (refer to Figure 3 ).

[0106] 1. Place a test piece 1 within 1 hour after simulated wiping and cleaning on a glass petri dish (small petri dish) 2 with a diameter of 4 cm, and place 50 mg of attractant bait 3 in the center of the test piece 1. The attractant bait 3 is a mixture of equal amounts of mouse feed and brewer's yeast and crushed.

[0107] 2. Place the glass culture dish (small culture dish) 2 with the test piece 1 on a glass culture dish (large culture dish) 4 with a diameter of 9 cm, and pour the mite culture medium 5 containing about 10,000 mites evenly into the large culture dish 4 and around the small culture dish 2.

[0108] 3. The large culture dish 4 containing the small culture dish 2 and the mite culture medium 5 is placed in a sealed container 7 covered with an adhesive mat 6. In addition, a glass container 8 filled with saturated salt water is placed in the sealed container 7 for adjusting humidity.

[0109] 4. Cover the sealed container 8 with a lid 9 and place it in a thermostat at 25°C for 24 hours.

[0110] 5. After 24 hours, the number of mites invading the small petri dish 2 (on the test piece 1) was measured. Then, the repellency rate of mites was calculated by the following formula (1).

[0111] Repellency (%) = ((b-a) / b) × 100 (1)

[0112] a: The number of mites in the small petri dish that entered the test piece

[0113] b: Number of mites entering the small petri dish of the blank sample (untreated floor material)

[0114] <Test results>

[0115] The mite repellency rate (evaluation result) of each test piece is shown below.

[0116] The repellency rate was calculated from the total number of mites measured in five repellency tests.

[0117] That is, a in formula (1) is the total number of mites measured in 5 repellency tests for each test piece (A, B, C), and b in formula (1) is the total number of mites measured in 5 repellency tests for untreated floor materials (blank samples).

[0118] Test piece A (Example 1): repellency 54.8%

[0119] Test piece B (Comparative Example 1): Repellency 31.1%

[0120] Test piece C (Comparative Example 2): Repellency 45.0%

[0121] According to the results, the anti-mite effect (repellent effect) of test piece A after simulated wiping and sweeping using a sheet sample impregnated with a liquid containing organic acid esters (benzyl benzoate, benzyl salicylate, dibutyl sebacate) as a mite repellent is higher than that of test pieces B and C after simulated wiping and sweeping using a sheet sample impregnated with a liquid containing organic acid esters (benzyl benzoate, benzyl salicylate, dibutyl sebacate) as a mite repellent.

[0122] Since organic acid esters are poorly soluble in water, the inventors expected that it would be difficult to expand organic acid esters as mite repellents into wet cleaning sheets. As described above, the drug solutions of Comparative Examples 1 and 2 were white and turbid, which also showed that the organic acid esters were not completely dissolved in the drug solutions.

[0123] If the liquid medicine containing organic acid esters is white and turbid and the organic acid esters are not dissolved in the liquid medicine, the properties and quality of the liquid medicine will be unstable. Since not enough organic acid esters as mite repellents are applied on the test pieces B and C after simulated wiping and sweeping, the mite repellency rate will be low.

[0124] In addition, the organic acid ester mixed in the weakly alkaline drug solution is hydrolyzed, the content of the organic acid ester is reduced, and the drug efficacy of the drug solution is reduced, so the repellency rate of mites is reduced.

[0125] In contrast, since the liquid medicine of Example 1 was not turbid but was substantially transparent, the anthocyanin as a mite repellent was dissolved in the liquid medicine.

[0126] The drug solution of Example 1 contains peppermint, and its properties and quality are stable. Therefore, the test piece A treated with the drug solution of Example 1 has a higher mite repellent effect than the test pieces B and C treated with the drug solutions of Comparative Examples 1 and 2.

[0127] Although peppermint is also poorly soluble in water, the present inventors have confirmed in experiments of preparing a chemical solution that peppermint is dissolved in a cleaning chemical solution for wiping off sebum and oil stains.

[0128] Furthermore, the present inventors have discovered that peppermint is compatible with ethanol and surfactants contained in a cleaning solution, and therefore peppermint can be dissolved in an aqueous solution by using ethanol and surfactants in combination, thereby completing the present invention.

[0129] That is, by dissolving cyanuric acid (a mite repellent) which will not be decomposed by being immersed in a weakly alkaline liquid contained in a cleaning sheet 100 for wiping off sebum and oil, the cleaning sheet 100 can achieve a wiping and sweeping process that can properly remove dirt attached to the cleaned surface, and can impart a repellent effect on the cleaned surface against indoor dust mites to the cleaned surface after the wiping and sweeping process.

[0130] As described above, the cleaning wet sheet 100 is impregnated with a weakly alkaline solution adjusted to pH 8.0-9.0 and containing cyanocobalamin. The use of the cleaning wet sheet 100 can appropriately remove sebum and oil stains attached to the cleaned surface, and can provide a repellent effect against indoor dust mites on the cleaned surface after wiping and cleaning.

[0131] It should be noted that in the above embodiment, although the wet cleaning sheet 100 is mounted on the cleaning tool 200 for sweeping, the present invention is not limited thereto, and the wet cleaning sheet 100 may be held by hand for wiping and sweeping without using the cleaning tool 200.

[0132] In addition, other specific details of the structure and the like may of course be changed appropriately.

[0133] Industrial Applicability

[0134] Since the present invention is constructed as described above, it can be used as a wet sheet for cleaning.

[0135] Explanation of symbols

[0136] 100 Wet slides for cleaning

[0137] 20Embossed

[0138] 21 embossed

[0139] 22 Concave Embossing

[0140] 30 embossed blocks

[0141] 31 embossed blocks

[0142] 40 non-embossed part

[0143] 200 cleaning tools

[0144] 201Head

[0145] 202 handle

[0146] a1st side

[0147] b Side 2

[0148] c. Side 3

[0149] d4th side

Claims

1. A wet sheet for cleaning, characterized in that: The base paper is impregnated with liquid medicine. The medicinal solution contains at least xanthoxylum bungeanum.

2. The wet cleaning sheet according to claim 1, wherein: The drug solution uses water as a solvent and contains at least one of ethanol and a surfactant.

3. The wet cleaning sheet according to claim 1, wherein: The drug solution is adjusted to be weakly alkaline.

4. The wet cleaning sheet according to any one of claims 1 to 3, characterized in that A plurality of convex embossings and concave embossings are respectively formed on the base paper sheet. The convex embossings are convex embossings on the first surface, and the concave embossings are convex embossings on the second surface.

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