Wet towel, wet towel roll, and wet towel package

Abstract

To provide a wet towel and a wet towel roll body, which have a high bed bath effect, which prevent a deterioration in the bed bath effect brought about by volatilization of chemicals, the sheets of which are prevented from being stuck on each other and which eliminate stickiness in use, and a wet towel package using the same.SOLUTION: In a wet towel 10, a sheet including a non-woven fabric is impregnated with chemicals. In the wet towel 10, the non-woven fabric contains 50-85 mass% of pulp; the amount of water absorption (TWA) of the sheet in a dry state is in the range of 150-350 g / m2; and the magnification (impregnation magnification) of the mass of the chemicals, with which the sheet in the dry state is impregnated, with respect to the mass of the sheet in the dry state is in the range of 200-400%.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wet towel, a wet towel roll, and a wet towel package using the same. [Background technology]

[0002] Wet towels are used to wipe the human body or objects. There are various ways to use them. For example, individually wrapped wet towels are used, in which a large nonwoven fabric is rolled into a stick shape and individually wrapped. Such large products are often used, for example, for wiping the body.

[0003] As an example of such wet towels, Patent Document 1 discloses a wet tissue for use in a meeting, in which a fiber sheet is impregnated with a deodorant liquid and stored in a sealed container. Patent Document 2 also discloses a portable wet tissue in which a sheet made of cellulose fiber or a composite fiber of cellulose fiber and synthetic fiber, cut into a shape suitable for body wiping when unfolded, is folded several times and rolled up into a stick shape, and a strong acidic water sealed and packaged in an inert film is packaged together in a film-like material.

[0004] As for a manufacturing device for such wet towels, Patent Document 3 discloses a packaging device for cloth products, etc., which is a device for packaging cloth products, etc., wound into a rod shape, with film, and which is equipped with a pair of film supplying means for supplying film from both sides of the cloth product, etc., and an adhesive means for adhering the films together around the cloth product, etc., inserted between the films supplied from the film supplying means, and which rotates the cloth product, etc. between the films by supplying film relatively quickly from one of the film supplying means when inserting the cloth product, etc. between the films. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 01-032693 [Patent Document 2] Registered Utility Model No. 3043153 [Patent Document 3] Patent No. 3681262 Summary of the Invention [Problem to be solved by the invention]

[0006] Regarding the above-mentioned wet towels, for example, wet towels for body wiping are required to have a wiping effect sufficient to wipe every corner of the body with a single towel. They also need to be hypoallergenic enough to be able to wipe away sebum and dirt without irritating the human skin. Furthermore, in low-temperature environments such as winter or cold regions, wet towels are sometimes heated using a microwave oven or hot water heater before use, and it is required that the wiping effect does not decrease due to the evaporation of the chemical solution during such heating. Wet towels for wiping objects are also required to have a high wiping effect and that the wiping effect does not decrease due to the evaporation of the chemical solution.

[0007] Furthermore, the above-mentioned wet towels must not only have a high wiping effect on the object to be wiped, such as a person or an object, and not lose their wiping effect due to evaporation of the chemical solution, but also must not stick to each other when the sheets are spread out during use or when stacked sheets are used one by one, and must not be sticky during use, etc. However, a wet towel that can satisfy all of these requirements at a high level has not yet been developed.

[0008] The present invention has been made in view of the above circumstances, and aims to provide a wet towel, a wet towel roll body, and a wet towel package using the same that have a high wiping effect, are not reduced in wiping effect due to evaporation of the chemical solution, do not stick together between sheets, and are not sticky during use. [Means for solving the problem]

[0009] As a result of extensive research into achieving the above-mentioned object, the present inventors have discovered a wet towel comprising a sheet containing nonwoven fabric impregnated with a chemical solution, wherein the nonwoven fabric contains 50 to 85% by mass of pulp, and the water absorption (TWA) of the sheet in a dry state is 150 to 350 g / m 2 The inventors have found that the wet towel has a mass ratio (impregnation ratio) of the medicinal solution impregnated into the sheet in a dry state to the mass of the sheet in a dry state of 200 to 400%, and have completed the present invention based on this finding.

[0010] That is, the present invention is as follows.

[0011] (1) A wet towel in which a sheet containing a nonwoven fabric is impregnated with a chemical solution, the nonwoven fabric containing 50 to 85 mass % of pulp, and the water absorption (TWA) of the sheet in a dry state is 150 to 350 g / m 2 The wet towel has a mass ratio (impregnation ratio) of the chemical solution impregnated into the sheet in a dry state to the mass of the sheet in a dry state of 200 to 400%. (2) The basis weight of the sheet in a dry state is 30 to 65 g / m 2 The wet towel according to (1) is as follows. (3) The wet towel according to (1) or (2) has a lateral tensile strength (WCD) of 300 to 800 gf / 25 mm, and an expansion ratio (lateral elongation) in the short direction of the wet towel of 40 to 120%. (4) The wet towel according to any one of (1) to (3) is in a sheet form, and is a wet towel roll in which the wet towel is at least wound into a roll. (5) A wet towel package comprising the wet towel roll described in (4) and a film packaging bag for storing the wet towel roll. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide wet towels, wet towel rolls, and wet towel packages using the same that have a high wiping effect, are not reduced in wiping effect due to evaporation of the chemical solution, do not stick together between sheets, and are not sticky when used. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of an example of a wet towel roll body according to this embodiment. [Figure 2] FIG. 2 is a conceptual diagram showing an example of a procedure for folding the wet towel according to this embodiment to obtain the wet towel roll body shown in FIG. [Figure 3] FIG. 3 is a perspective view of an example of the wet towel package according to this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, a mode for carrying out the present invention (hereinafter simply referred to as "the present embodiment") will be described in detail. The following present embodiment is an example for explaining the present invention, and is not intended to limit the present invention to the following content. The present invention can be carried out by appropriately modifying it within the scope of its gist.

[0015] In the drawings, the same elements are denoted by the same reference numerals, and redundant explanations will be omitted. Furthermore, unless otherwise specified, the positional relationships, such as up, down, left, and right, are based on the positional relationships shown in the drawings. Furthermore, the dimensional ratios of the drawings are not limited to those shown in the drawings.

[0016] Furthermore, in this specification, terms with "abbreviation" attached indicate the meaning of the term excluding "abbreviation" within the scope of common technical knowledge of a person skilled in the art, and also include the meaning itself excluding "abbreviation." The MD direction of a wet towel is the machine direction in which the wet towel sheet is made, and the CD direction is the direction perpendicular to the MD direction (cross direction). The "lateral direction" of a wet towel refers to the CD direction, the "longitudinal direction" refers to the MD direction, the "longitudinal direction" refers to the CD direction, and the "transverse direction" refers to the MD direction.

[0017] FIG. 1 is a perspective view of an example of a wet towel roll body according to this embodiment.

[0018] The wet towel 10 according to this embodiment is a wet towel in which a sheet containing nonwoven fabric is impregnated with a chemical solution. The nonwoven fabric contains 50 to 85% by mass of pulp, and the water absorption (TWA) of the sheet in a dry state is 150 to 350 g / m 2 The wet towel has a mass ratio (impregnation ratio) of the chemical solution impregnated into the sheet in a dry state to the mass of the sheet in a dry state of 200 to 400%.

[0019] (wet towels)

[0020] The wet towel 10 is a nonwoven fabric containing 50 to 85% by mass of pulp. If the pulp content (pulp ratio) is less than 50% by mass, the retention of the chemical solution will be insufficient, and for example, the wiping area per wet towel 10 will be reduced. If the pulp content is more than 85%, when the wet towel 10 is folded or stacked, the sheets will tend to stick together, making it difficult to unfold the wet towel 10, for example. The lower limit of the pulp content is preferably 55% by mass or more, and more preferably 60% by mass or more. The upper limit of the pulp content is preferably 80% by mass or less, and more preferably 75% by mass or less.

[0021] The pulp is not particularly limited, but examples thereof include bleached coniferous kraft pulp (NBKP) such as radiata pine, slash pine, southern pine, lodgepole pine, spruce, Douglas fir, etc. One type of NBKP may be used alone, or two or more types may be used in combination.

[0022] The nonwoven fabric may be a pulp-containing nonwoven fabric that further contains a resin in addition to pulp. When the nonwoven fabric contains a resin, the type of resin may be polyolefin, polyester, polylactic acid, or the like. Among these, polyolefin is preferable. When the nonwoven fabric contains a resin, the resin content is preferably less than 50% by mass, more preferably less than 45% by mass, and even more preferably less than 40% by mass. The upper limit of the resin content is preferably greater than 20% by mass, and more preferably greater than 25% by mass.

[0023] As the nonwoven fabric, for example, a fabric obtained by integrating pulp-containing fibers with regenerated fibers such as rayon, natural fibers such as cotton, or synthetic fibers such as polyethylene, polypropylene, and polyethylene terephthalate by processing methods such as chemical bonding, spunlace, spunbond, needle punching, airlaid, wet spunlace, spunbond, and meltbond can be used.

[0024] Specific examples of nonwoven fabrics include spunbond nonwoven fabrics and spunbond-meltblown composite nonwoven fabrics formed by laminating a spunbond nonwoven fabric and a meltblown nonwoven fabric. Among these, spunbond nonwoven fabrics are preferred. In the case of composite nonwoven fabrics containing at least a spunbond nonwoven fabric, it is more preferred that the spunbond nonwoven fabric account for 50% by mass or more.

[0025] The method for manufacturing the nonwoven fabric is not particularly limited, and known manufacturing methods can be used. For example, a preferred method for manufacturing a composite nonwoven fabric formed by laminating multiple nonwoven fabrics is to entangle a laminate formed by laminating multiple nonwoven fabric layers by hydroentangling, using high-pressure water. A nonwoven fabric obtained by such hydroentangling (hydroentangled nonwoven fabric) can easily have a difference between the front and back of the sheet, making it easier to spread. The difference between the front and back of the sheet here refers to the difference in pulp content. For example, the difference between the front and back can be achieved by having one surface be a nonwoven fabric layer with a high pulp content and the other surface be a nonwoven fabric layer with a low pulp content or no pulp. By providing a difference in pulp content between the front and back of the sheets, sticking between the sheets can be more effectively prevented.

[0026] (medicinal solution)

[0027] The chemical liquid may be any chemical liquid that can be used for wiping purposes, without any particular limitation. Examples of the chemical liquid include a chemical liquid containing a disinfectant and, as necessary, a moisturizer, an emollient, and other additives. The chemical liquid may be used, for example, as a liquid in which each component is dissolved or dispersed in water.

[0028] As the disinfectant, any component that can be used for wiping purposes can be used without any particular limitation. Examples of disinfectants include quaternary ammonium salts such as benzalkonium chloride and cetylpyridinium chloride, polyaminopropyl biguanide, parabens (methylparaben (methyl parahydroxybenzoate), ethylparaben (ethyl parahydroxybenzoate), propylparaben (propyl parahydroxybenzoate), isopropylparaben (isopropyl parahydroxybenzoate), butylparaben (butyl parahydroxybenzoate), isobutylparaben (isobutyl parahydroxybenzoate), benzylparaben (benzyl parahydroxybenzoate), etc.), benzoic acid and its derivatives. salts (such as sodium benzoate), chlorocresol, chlorobutanol, salicylic acid and its salts (such as sodium salicylate), sorbic acid and its salts (such as potassium sorbate), dehydroacetic acid and its salts (such as sodium dehydroacetate), trichlorohydroxydiphenyl ether, phenoxyethanol, phenol, sodium lauryldiaminoethylglycine, resorcinol, isopropylmethylphenol, chlorhexidine hydrochloride, orthophenylphenol, chlorhexidine gluconate, methylisothiazolinone, and the like.

[0029] The disinfectant may be used alone or in combination of two or more kinds.

[0030] The content of the disinfectant in the chemical solution can be determined appropriately depending on the components of the chemical solution, but is preferably, for example, 0.01 to 5.0% by mass of the total amount of the chemical solution.

[0031] The moisturizing agent may be any component commonly used in this field without any particular limitation, and examples thereof include polyhydric alcohols such as glycerin and pentaerythritol, organic acids such as lactic acid and sodium pyrrolidone carboxylate (PCA-Na), urea, and alkylene glycols such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, polyethylene glycol, and diethylene glycol monoethyl ester.

[0032] The moisturizing agent may be used alone or in combination of two or more kinds.

[0033] The content of the moisturizing agent in the chemical solution can be determined appropriately depending on the chemical solution components, but is preferably, for example, 0.0001 to 10.0% by mass of the total amount of the chemical solution.

[0034] Furthermore, examples of oil-soluble emollients include natural oils and fats, long-chain fatty acids, fatty acid esters, lanolins (lanolin, lanolin alcohol, polyoxyethylene beeswax, etc.), phospholipids, ceramides, and natural moisturizing ingredients (aloe extract, etc.).

[0035] Other additives that can be used in quasi-drugs, cosmetics, etc. can also be used. Examples of additives include gelling agents, emulsifiers, thickeners, pH adjusters, sequestering agents, surfactants, stabilizers, discoloration inhibitors, fragrances, colorants, etc. These additives may be used alone or in combination of two or more.

[0036] Among the above, suitable examples of the medicinal solution used in this embodiment include, for example, quaternary ammonium salts such as benzalkonium chloride and cetylpyridinium chloride; polyaminopropyl biguanide, paraben, phenoxyethanol, and the like.

[0037] (Physical properties of wet towels)

[0038] The water absorption capacity (TWA; Total Water Absorbency) of the wet towel 10 in a dry state is 150 to 350 g / m 2 The TWA is 150g / m 2 If the thickness is less than 350g / m, the impregnation ratio cannot be increased to a level that provides sufficient wiping effect, and sufficient chemical solution cannot be retained. 2 If the TWA is greater than this, the appropriate amount of chemical solution will not seep out during wiping, and dirt and other debris will not be wiped away properly, resulting in insufficient wiping effectiveness. The lower limit of the TWA is 200 g / m 2It is preferable that the weight is 250 g / m or more. 2 More preferably, the upper limit of the TWA is 340 g / m 2 Preferably, it is 330 g / m or less. 2 By controlling the content within such a range, the wiping effect described above can be further improved, and a sufficient wiping effect can be obtained without increasing the impregnation ratio, which is also economical.

[0039] The TWA of the wet towel 10 can be measured in accordance with the measurement method described in the examples below.

[0040] The ratio (impregnation ratio; g2 / g1) of the mass (g1) of the wet towel 10 in a dry state to the mass (g2) of the wet towel 10 in a dry state is 200 to 400%. If the impregnation ratio is less than 200%, the area that can be wiped with one wet towel 10 (wipeable area) becomes small, and sufficient wiping effect cannot be obtained. If the impregnation ratio is more than 400%, stickiness occurs. The lower limit of the impregnation ratio is preferably 220% or more, and more preferably 240% or more. The upper limit of the impregnation ratio is preferably 360% or less, and more preferably 330% or less.

[0041] The wet towel 10 has a sheet weight of 30 to 65 g / m in a dry state. 2 The lower limit of the basis weight is preferably 33 g / m 2 More preferably, it is 35 g / m or more. 2 The upper limit of the weight per unit area is 55 g / m 2 More preferably, it is 45 g / m or less. 2 It is more preferable that the wet towel 10 is equal to or less than 10 ...

[0042] The cross direction tensile strength (WCD) of the wet towel 10 is preferably 300 to 800 gf / 25 mm. The lower limit of the WCD is more preferably 380 gf / 25 mm or more, and even more preferably 430 gf / 25 mm or more. The upper limit of the WCD is more preferably 700 gf / 25 mm or less, and even more preferably 600 gf / 25 mm or less. By controlling the lower limit of the WCD within the above range, it is possible to effectively prevent the wet towel 10 from breaking during wiping. Furthermore, by controlling the upper limit of the WCD within the above range, it is possible to impart flexibility to the wet towel 10 that makes wiping easy during use without making it too stiff. For example, in the case of a cylindrical wet towel roll body 1 as shown in FIG. 1 described below, the height direction is the cross direction (CD).

[0043] The expansion ratio (lateral stretch) of the wet towel 10 in the longitudinal direction is preferably 40 to 120%. The lower limit of the lateral stretch is more preferably 45% or more, and even more preferably 50% or more. The upper limit of the lateral stretch is more preferably 110% or less, and even more preferably 100% or less. By controlling the lower limit of the lateral stretch within the above range, the wet towel 10 does not become too stiff, and can be imparted with flexibility that makes wiping easy during use. By controlling the upper limit of the lateral stretch within the above range, the wet towel 10 does not become too stretched, making wiping easier.

[0044] Furthermore, it is preferable that both the WCD and lateral elongation be within the above-mentioned ranges, which further improves the ease of wiping and tear resistance during use.

[0045] The wet towel 10 according to this embodiment can also be suitably used as a so-called thick wet towel. From this viewpoint, the sheet thickness of the wet towel 10 is preferably 0.30 to 0.50 mm. The lower limit of the sheet thickness is more preferably 0.33 mm or more, and even more preferably 0.35 mm or more. The upper limit of the sheet thickness is more preferably 0.47 mm or less, and even more preferably 0.45 mm or less. By controlling the sheet thickness within the above range, wiping becomes easier.

[0046] The wet towel 10 according to this embodiment can be formed in the form of a substantially rectangular sheet. The length in the longitudinal direction (lateral direction) is preferably 300 to 700 mm. The lower limit is more preferably 350 mm or more, and even more preferably 400 mm or more. The upper limit is more preferably 650 mm or less, and even more preferably 600 mm or less. By controlling the length in the longitudinal direction within the above range, wiping becomes easier.

[0047] The length in the short side direction (vertical direction) is preferably 200 to 400 mm. The lower limit is more preferably 220 mm or more, and even more preferably 250 mm or more. The upper limit is more preferably 350 mm or less, and even more preferably 300 mm or less. By controlling the length in the short side direction within the above range, wiping becomes easier.

[0048] (Wet towel roll body)

[0049] The wet towel 10 according to this embodiment is in a sheet form and can be used as a roll (wet towel roll body 1) by at least rolling it up (see arrow F1). The wet towel roll body 1 can be suitably used in a so-called stick shape (stick type) or the like. The wet towel roll body 1 may be formed by folding the sheet-like wet towel 10 and then rolling it up, as needed. By forming it into such a roll body, it can be made compact, and since the contact area with the outside is small, evaporation of the chemical solution can be effectively prevented, and contamination due to contact with the outside can also be effectively prevented.

[0050] When the wet towel roll body 1 is produced from the sheet-like wet towel 10, it can be obtained by, for example, the method shown in FIG.

[0051] FIG. 2 is a conceptual diagram showing an example of a procedure for folding the wet towel according to this embodiment to obtain the wet towel roll body shown in FIG.

[0052] First, the raw sheet 100 of the wet towel 10 according to this embodiment is folded in half along the folding line L1, which is the center line in the longitudinal direction, so that the end 110 and the other end 120 overlap (see arrow F2), to obtain the folded sheet 200.

[0053] Next, folded sheet 200 is folded so that end 210 and the other end 220 are in contact with folding line L2, which is the center line. That is, end 210 is folded along folding line L3 (see arrow F3), and the other end 220 is folded along folding line L4 (see arrow F4), thereby folding sheet 300 in a gate-folded manner.

[0054] Then, one end 310 of the folded sheet 300 is rolled up (see arrow F1) so that the folded end 330 (i.e., the tangent line between the end 210 and the other end 220; see L2) is on the inside, and the wet towel roll body 1 can be obtained.

[0055] Although there are no particular limitations on the dimensions and shape of the wet towel roll body 1, it is preferably cylindrical, which further improves the ease of spreading the sheets.

[0056] (Wet towel packaging)

[0057] FIG. 3 is a perspective view of an example of the wet towel package according to this embodiment.

[0058] According to this embodiment, a wet towel package 2 can be provided that includes the above-described wet towel roll body 1 and a film packaging bag 3 that houses the wet towel roll body 1.

[0059] For example, a stick-shaped wet towel roll body 1 may be individually packaged (individually wrapped) in a packaging bag 3. By individually packaging in this manner, the wet towel roll body 1 can be opened immediately before use and can be used immediately thereafter, preventing evaporation of the liquid medicine. Therefore, this is particularly suitable for a disposable wet towel roll body 1.

[0060] The packaging form of the packaging bag 3 is not particularly limited and can be determined appropriately taking into consideration the shape and type of the wet towel roll body 1. Examples of packaging forms include pillow packaging (vertical pillow packaging, horizontal pillow packaging, stick pillow packaging, flat bag pillow packaging, etc.), gusset packaging, two-sided seal packaging, tube roll packaging, etc. Among these, pillow packaging is preferred.

[0061] The packaging bag 3 is a pillow packaging bag in which the front surface 30, back surface 31, and side surfaces 32 are sealed at both end portions 33. Pillow packaging is a pillow-shaped packaging form in which a single sheet of film is sealed back to back to form a tube, and the ends are sealed and cut to a predetermined length. Pillow packaging is a packaging form that can accommodate a wide range of dimensions and shapes of the wet towel roll body 1, and is preferable from the standpoint of preventing evaporation of the chemical solution because it allows the wet towel roll body 1 to be sealed and packaged.

[0062] The film that is the material of the packaging bag 3 is preferably, for example, a resin film. The film material may be any material that is liquid-impermeable.

[0063] The film may be, for example, a laminated film including a substrate film having barrier properties and a seal film having seal properties. Examples of the substrate film having barrier properties include polyethylene terephthalate (PET) film, biaxially oriented polypropylene (OPP) film, aluminum vapor deposition film, and transparent vapor deposition film. Examples of the seal film include linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and cold-rolled polypropylene (CPP).

[0064] Furthermore, from the viewpoint of scratch resistance and cosmetic appearance, a laminated film may be formed by further laminating a coating film (PET film, OPP film, etc.) on the outermost layer.

[0065] Although there are no particular limitations on the dimensions and shape of the packaging bag 3, stick pillow packaging is preferred. By using such dimensions and shape, the ability to prevent the liquid medicine from volatilizing is further improved.

[0066] As explained above, the wet towel 10, wet towel roll 1, and wet towel package 2 according to this embodiment contain a sufficient amount of chemical solution to provide a sufficient wiping effect, yet have the following advantages: they are less irritating to the skin, can wipe a large area with one sheet, are non-sticky, and are easy to spread out when in use. [Example]

[0067] The present invention will be explained in more detail with reference to the following examples and comparative examples, but the present invention is not limited to these examples in any way.

[0068] <Methods for measuring physical properties>

[0069] -Weight of sheet in dry state The basis weight of the wet towel 10 in a dry state was measured in accordance with JIS L 1913:2010. The mass per unit area was measured by leaving the wet towel 10 in a dryer at 60°C until the mass became constant and then completely drying it, in accordance with JIS P8111:1998, and after conditioning the moisture, in accordance with JIS L 1913:2010.

[0070] Pulp content of wet towel 10 (pulp ratio) A sample was prepared by cutting a sheet of wet towel 10 into a 1 cm x 1 cm square. The mass of this sample was measured and used as the mass of the sheet. The sample was then immersed in 700 mL of acetate buffer (pH 4 to 4.5) and a cellulose-degrading enzyme (product name "Cellulase Onozuka 3S", manufactured by Yakult Pharmaceutical Co., Ltd.) was added to a concentration of 1% by mass. The sample was then immersed at 40°C and 166 rpm for 12 hours. The sample was then removed, washed with water, and dried. The mass of the sample after this treatment was measured, and the pulp content was calculated using the following formula. Pulp content = mass of sample after treatment (g) / mass of sample before treatment (g) × 100

[0071] Measurement of tensile strength in the cross direction (WCD) and cross elongation rate of wet towel 10 The WCD and lateral elongation of the wet towel 10 were measured in accordance with JIS L 1913:2010. Note that the term "lateral" here refers to the height direction of the cylindrical shape of the wet towel 10. When the wet towel 10 has a cylindrical shape as shown in FIG. 1, the WCD and lateral elongation are measured after the roll 1 is unwound and developed into a rectangular sheet.

[0072] - Sheet water absorption in dry state (TWA) The wet towel 10 was cut into a 7.5 cm x 7.5 cm square to prepare a sample. The sample was then left to stand in a 60°C dryer until the mass of the sample became constant, and a completely dried sample was obtained. The mass of the completely dried sample was measured (mass after drying). Next, the sample was immersed in distilled water for 2 minutes, and then placed in a container saturated with water vapor (RH 100%), with one corner of the sample at the top, and the sample was hung in an extended state while supporting this top and the two adjacent corners. The sample was then left for 30 minutes, and the mass after draining was measured. The measured value was then measured for 1 m of the sample. 2 Water retention capacity per unit (g / m 2 ) was converted.

[0073] Chemical impregnation ratio A sample was prepared by cutting a sheet of wet towel 10 into a 1 cm x 1 cm piece. The mass of this sample was measured (mass before bone drying). Subsequently, the sample was left to stand in a dryer at 60°C until the mass of the sample became constant, and a completely dried sample was obtained. The mass of the completely dried sample was measured (mass after drying). Then, the ratio of the mass of the dry sheet to the mass of the dry sheet with the chemical solution impregnated (impregnation ratio) was calculated based on the following formula. Impregnation ratio (%) = (mass before bone dry g - mass after bone dry g) / mass after bone dry g × 100

[0074] <Evaluation method>

[0075] -Wet lasting In an indoor environment, the monitor used a sheet to wipe the entire body of the care recipient, excluding the genitals. After the wiping task, the monitor squeezed the sheet by hand and evaluated whether it remained moist until the end.

[0076] -Easy to remove dirt In an indoor environment, monitors used the sheet to wipe the genitals of the care recipient, and evaluated how well it removed dirt such as excrement and sebum. The shorter the wiping time, the easier it was to remove the dirt.

[0077] ·Skin irritation The monitors evaluated the skin irritation when wiping their bodies.

[0078] Easy to wipe off The monitors evaluated the ease of wiping when wiping their bodies.

[0079] One sheet is enough to wipe (wipeable area) In an indoor environment, the monitor used a sheet to wipe the entire body of the care recipient except for the genitals, and then wiped the genitals. We evaluated whether the entire task could be completed with one sheet.

[0080] Stickiness The subjects evaluated the discomfort caused by stickiness when wiping their bodies.

[0081] -Easy to unfold the sheet The monitors evaluated the ease of unfolding the stick-shaped sheet. The shorter the time between opening the film packaging and starting the wiping task, the easier it was to unfold the sheet.

[0082] For each of the above evaluation items, out of 30 monitors, If 30 to 25 people judged it to be good, it was rated as "◎". If 24 to 16 people judged it to be good, it was rated as "Good." If 10 to 15 people judged it to be good, it was rated as "△". If 9 to 5 people judged it to be good, it was rated as "X". If 4 to 0 people judged it to be good, it was rated as "××".

[0083] Example 1

[0084] (Production of wet towel 10 and wet towel roll body 1)

[0085] First, the components were mixed in a chemical tank and stirred uniformly to prepare a chemical solution. Then, the chemical solution was sprayed from an impregnation nozzle to uniformly impregnate the wet towels 10. Next, the obtained wet towels 10 were cut to prepare raw sheet 100 (see FIG. 2) measuring 600 mm in width and 300 mm in length. This raw sheet 100 was folded and wound according to the procedure shown in FIG. 2 to produce a wet towel roll body 1.

[0086] (Production of wet towel package 2)

[0087] The above-mentioned wet towel roll 1 was individually packaged (one roll only) using a transparent vapor-deposited PET / LLDPE film to obtain a pillow-packaged (vertical) wet towel package 2. This package bag 3 was a stick pillow package, and the obtained wet towel package 2 was in the form of a roll.

[0088] <Examples 2 to 6, Comparative Examples 1 to 3>

[0089] A wet towel, a wet towel roll, and a wet towel package were produced in the same manner as in Example 1, except that the conditions were changed as shown in Table 1.

[0090] Table 1 shows the conditions and evaluation results for each example and comparative example.

[0091] [Table 1]

[0092] From the above, it has been confirmed that the wet towels, wet towel rolls, and wet towel packages of this embodiment have a high wiping effect, the wiping effect is not reduced due to evaporation of the chemical solution, there is no sticking between sheets, and there is no stickiness when used. [Explanation of symbols]

[0093] 1: Wet towel roll body 2: Wet towel packaging 3: Packaging bag 10: Wet towel 30: Surface 31: Back side 32: Side 33:End 100: Raw sheet 200, 300: Folded sheet 110, 120, 210, 220, 310: End 330: Folded end L1, L2, L3, L4: Bending lines F1, F2, F3, F4: Arrows

Claims

1. A wet towel in which a sheet containing nonwoven fabric is impregnated with a medicinal solution, The nonwoven fabric contains 66 to 75% by mass of pulp, the sheet has a difference in the pulp content between its front and back sides, one surface being a nonwoven fabric layer surface having a high pulp content and the other surface being a nonwoven fabric layer surface not containing pulp; The water absorption (TWA) of the sheet in a dry state is 150 to 350 g / m ２ and The ratio (impregnation ratio) of the mass of the chemical solution impregnated into the sheet in a dry state to the mass of the sheet in a dry state is 200 to 400%. Wet towels (excluding those containing powder in the chemical solution).

2. 2. The wet towel according to claim 1, wherein the impregnation ratio is 200 to 300%.

3. The wet towel has a cross-sectional (CD) tensile strength (WCD) of 300 to 800 gf / 25 mm; The expansion ratio (transverse expansion) of the wet towel in the longitudinal (CD) direction is 40 to 120%. The wet towel according to claim 1 or 2.

4. The wet towel according to any one of claims 1 to 3 is in a sheet form, and the wet towel is at least wound into a roll. Wet towel roll body.

5. The wet towel roll body according to claim 4, a film packaging bag for storing the wet towel roll; A wet towel package comprising:

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