JP2016022273A - Wet wiper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet wiper enabling a user to separate use purposes by both surfaces for dirt adhering to a wiping-out surface, such as stuck dirt, and dirt accumulated on a wiping-out surface, such as dust or dirt.SOLUTION: A wet wiper includes a fabric, and a sterilization liquid impregnated in the fabric, and has a coefficient of static friction to an acrylic board, different by 0.10 or more on the front and rear faces. A surface having a high coefficient of static friction is suitable for wiping dirt (wiped matter) such as dirt adhering to a wiping-out surface, such as blood dirt stuck to devices and food dirt on a bed table, and a surface having a low coefficient of static friction is suitable for wiping dirt accumulated on a wiping-out surface, such as dust and dirt, and wiping to remove remaining dirt without wiped, slightly left on a wiping-out surface.SELECTED DRAWING: None

Description

  The present invention relates to a wet wiper.

  The wet wiper is used in various applications for the purpose of cleaning the surface to be wiped, and various studies are made on the required performance according to various applications.

  For example, Patent Document 1 discloses a wiping material effective for gram-negative bacteria and / or positive bacteria. In addition, Patent Document 2 discloses a mold prevention / mold removal sheet that has both a mold prevention effect and a mold removal effect, and combines a highly safe mold prevention / mold removal composition with improved use. . Furthermore, Patent Document 3 contains a composition that can provide a cleaning effect and protection against water and oily soils, while at the same time imparting gloss to a treated substrate such as the surface of natural leather or artificial leather. A wipe is disclosed.

JP 2005-513074 gazette JP 2007-308442 A Special Table 2007-500263

  The wet wiper takes in the wiping object when cleaning the surface to be wiped, but the dirt (wiping object) adheres to the surface to be wiped, such as blood stains stuck to the equipment and food stains on the bed table. ) And wiping of dirt such as dust and dust that have accumulated on the surface to be wiped and wiping to remove the remaining dirt remaining on the surface to be wiped are different in a suitable configuration. Therefore, it is necessary to use wet wipers properly depending on the object to be wiped and dirt, and there is a problem in that the work becomes complicated.

  In particular, in a use for wiping off various kinds of dirt as described above in a single use, for example, in a medical use, it is required that the use can be divided with a single wet wiper.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a wet wiper that can be used for both sides.

  As a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by a wet wiper having a predetermined static friction coefficient, and have completed the present invention.

That is, the present invention is as follows.
[1]
A fabric and a sterilizing solution impregnated in the fabric,
A wet wiper having a coefficient of static friction with respect to an acrylic plate that differs by 0.10 or more on the front and back surfaces.
[2]
The coefficient of static friction with respect to the acrylic plate on the surface of the wet wiper is 0.60 to 1.5,
The coefficient of static friction with respect to the acrylic plate on the back surface of the wet wiper is 0.30 to 1.2.
The wet wiper described in [1] above.
[3]
The wet wiper according to [1] or [2], wherein the fabric includes natural fiber and synthetic fiber.
[4]
On the surface of the fabric, 15 to 40 area% natural fiber is present,
10 to 35 area% of natural fiber is present on the back surface of the fabric,
The wet wiper according to any one of [1] to [3] above.
[5]
The wet wiper according to any one of [1] to [4], wherein the sterilizing solution contains a quaternary ammonium salt.
[6]
The wet wiper according to any one of [1] to [5], which is for medical use.

  According to the present invention, it is possible to provide a wet wiper that can be used for both sides.

Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described in detail. In addition, this invention is not limited to the following embodiment, It can implement by changing variously within the range of the summary.

[Wet wiper]
The wet wiper of this embodiment has a cloth and a sterilizing solution impregnated in the cloth, and the coefficient of static friction with respect to the acrylic plate differs by 0.10 or more on the front and back surfaces.

  The wet wiper of this embodiment can be used for both sides by having a configuration in which the static friction coefficient differs by 0.10 or more on the front and back surfaces. When the coefficient of static friction on the wet wiper surface is high, it is suitable for wiping dirt (wiping material) that adheres to the surface to be wiped, such as blood stains stuck to the equipment and food stains on the bed table, and when the coefficient of static friction is low, It is suitable for wiping off dirt such as dust and dust that has fallen on the surface to be wiped and for wiping off dirt remaining slightly on the surface to be wiped.

  The coefficient of static friction with respect to the acrylic plate on the front and back surfaces of the wet wiper differs by 0.10 or more, preferably by 0.15 to 1.0, and more preferably by 0.15 to 0.80. When the coefficient of static friction with respect to the acrylic plate on the front and rear surfaces of the wet wiper is different by 0.10 or more, the usable surface to be wiped (object) and the range of dirt can be expanded. In addition, when the coefficient of static friction with respect to the acrylic plate on the front and back surfaces of the wet wiper is different by 1.0 or less, the uniform impregnation performance of the effective component of the sterilization liquid tends to be further improved.

  The “surface” means a surface having a high coefficient of static friction against the acrylic plate. Further, the “back surface” refers to a surface having a low coefficient of static friction against the acrylic plate.

  The coefficient of static friction with respect to the acrylic plate on the surface of the wet wiper is preferably 0.60 to 1.5, more preferably 0.70 to 1.3, and still more preferably 0.80 to 1.2. When the static friction coefficient is 0.60 or more, the dirt scraping performance tends to be further improved. In addition, when the coefficient of static friction is 1.5 or less, the workability of not being caught more than necessary when wiping with a wet wiper tends to be improved. The static friction coefficient can be measured by the method described in Examples.

  The coefficient of static friction with respect to the acrylic plate on the back surface of the wet wiper is preferably 0.30 to 1.2, more preferably 0.40 to 1.1, and still more preferably 0.60 to 1.0. When the coefficient of static friction is 0.30 or more, the wiping of dirt such as dust and dust that has accumulated on the surface to be wiped and the performance of removing dirt remaining slightly on the surface to be wiped tend to be improved. It is in. Moreover, when the coefficient of static friction is 1.2 or less, the workability of not being caught more than necessary when wiping with a wet wiper tends to be further improved. The static friction coefficient can be measured by the method described in Examples.

  The static friction coefficient is increased by increasing the natural fiber ratio existing on the fabric surface and / or increasing the fabric density, decreasing the natural fiber ratio existing on the fabric surface, and / or decreasing the fabric density. It decreases by making it.

  In order to make the static friction coefficient different from the acrylic plate on the front and back surfaces of the wet wiper, there is no particular limitation. For example, the fibers constituting the fabric are entangled in order in order to obtain the desired static friction coefficient. The method of doing is mentioned.

[Fabric]
Although it does not specifically limit as a fiber which comprises a fabric, For example, a natural fiber, a synthetic fiber, a semisynthetic fiber, a regenerated fiber, and an inorganic fiber are mentioned. The fibers constituting the fabric may be used alone or in combination of two or more.

  Although it does not specifically limit as natural fiber, For example, cellulosic fibers, such as cotton, flax, a pulp, chitin, chitosan, wool, silk, etc. are mentioned.

  Although it does not specifically limit as synthetic fiber, For example, vinylon, vinylidene; Polyesters, such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, copolymer polyester; Linear low density polyethylene, low density polyethylene, high density polyethylene, polypropylene Polyolefins such as nylon 6, nylon 66, nylon 610 and nylon 46; acrylic fibers such as polyacrylonitrile; polyurethane, polyvinyl chloride, aramid, benzoate, polyclar, novoloid, polyfluoroethylene and the like.

  In the case of a composite fiber, a combination of polyethylene terephthalate and polyethylene, polypropylene, polyethylene, and polyamide fiber can be used. In the present embodiment, polyester fibers are preferred because they are breathable and can be flexible.

  Although it does not specifically limit as a semisynthetic fiber, For example, an acetate, a triacetate, a promix etc. are mentioned.

  The recycled fiber is not particularly limited, and examples thereof include rayon, cupra, polynosic rayon, lyocell, and tencel.

  Although it does not specifically limit as inorganic fiber, For example, glass fiber, carbon fiber, etc. are mentioned.

  Among these, it is preferable that the fabric includes natural fibers and synthetic fibers. By including a natural fiber and a synthetic fiber, it becomes easy to adjust so that a static friction coefficient may differ by 0.10 or more by the surface back surface. Inclusion of natural fibers increases the static friction coefficient, and inclusion of synthetic fibers decreases the static friction coefficient. By changing the abundance ratio of these fibers on the front and back surfaces, the static friction coefficient can be changed on the front and back surfaces.

  The content of the natural fiber is preferably 20 to 80% by mass, more preferably 30 to 70% by mass, and further preferably 40 to 60% by mass with respect to 100% by mass of the fabric. When the content of the natural fiber is 20% by mass or more, the dirt scraping performance tends to be further improved. Moreover, it exists in the tendency which the workability | operativity at the time of wiping improves more because content of natural fiber is 80 mass% or less.

  The content of the synthetic fiber is preferably 20 to 80% by mass, more preferably 30 to 70% by mass, and further preferably 40 to 60% by mass with respect to 100% by mass of the fabric. When the content of the synthetic fiber is 20% by mass or more, the strength of the wet wiper tends to be further improved. Moreover, when the content of the synthetic fiber is 80% by mass or less, the release of the sterilizing solution at the time of wiping is gradual and the area that can be wiped tends to increase.

  The natural fiber present on the surface of the fabric is preferably 15 to 40 area%, more preferably 15 to 35 area%, and further preferably 20 to 30 area%. When the natural fiber present on the surface of the fabric is 15% by area or more, the soil scraping performance tends to be further improved. Moreover, the workability | operativity at the time of wiping tends to improve more because the natural fiber which exists in the surface of a fabric is 40 area% or less.

  The natural fiber present on the back surface of the fabric is preferably 10 to 35 area%, more preferably 10 to 30 area%, and further preferably 15 to 25 area%. When the natural fiber present on the back surface of the fabric is 10% by area or more, the dirt scraping performance tends to be further improved. Moreover, when the natural fiber existing on the back surface of the fabric is 35 area% or less, the workability during wiping tends to be further improved.

  In addition, the ratio of the natural fiber which exists in the surface back surface of a fabric can be measured by the method as described in an Example. Further, in the case of the spunlace manufacturing method, for example, in the case of the spunlace manufacturing method, the ratio of natural fibers increases by increasing the water pressure during entanglement, and decreases by decreasing the water pressure during entanglement.

  Although it does not specifically limit as a kind of fabric, For example, a woven fabric, a nonwoven fabric, a knitted fabric etc. are mentioned. Among these, a nonwoven fabric is preferable from the viewpoints of water absorption, flexibility, and moisture permeability.

  As for the form of the cloth, the cloth is cut into a sheet shape, Z-folded and overlapped, impregnated with a sterilizing solution, wrapped in a pillow, or rolled into a roll and impregnated with a sterilizing solution. Things. Among these, the thing of the form which wound the fabric in roll shape is preferable.

The density of the fabric is preferably 0.10 to 0.30 g / cm ³ , more preferably 0.12 to 0.25 g / cm ³ , and still more preferably 0.15 to 0.23 g / cm ³ . is there. When the density of the fabric is 0.10 g / cm ³ or more, the dirt scraping performance tends to be further improved. Moreover, when the density of the fabric is 0.30 g / cm ³ or less, the workability during wiping tends to be further improved.

[Disinfectant]
Although it does not specifically limit as a disinfection liquid, For example, the solution containing components (henceforth only an "active ingredient") which has actions, such as cleaning, disinfection, bacteriostasis, disinfection, and disinfection, is mentioned.

(Active ingredient)
Although it does not specifically limit as an active ingredient, For example, quaternary ammonium salt; 2,4,4'-trichloro-2'-hydroxy-diphenyl ether or 2,2'-dihydroxy-5,5'-dibromo-diphenyl ether Halogenated diphenyl ethers such as phenoxyethanol, phenoxypropanol, phenoxyisopropanol, phenol compounds such as parachloro-meta-xylenol (PCMX), etc .; 2,2′-methylenebis (4-chlorophenol), 2,2′-methylenebis (3,4,6-trichlorophenol), 2,2′-methylenebis (4-chloro-6-bromophenol), bis (2-hydroxy-3,5-dichlorophenyl) sulfide, or bis (2-hydroxy-5) -Chlorobenzyl) sulfide, etc. Bisphenyl compounds; halogenated carbanilides such as 3,4,4′-trichlorocarbanilide, etc .; benzyl alcohol; chlorhexidine; chlorhexidine gluconate; chlorhexidine hydrochloride. An active ingredient can be suitably selected according to the use of a wet wiper, and may be used individually by 1 type, or may use 2 or more types together.

（式（１）中、Ｒ¹、Ｒ²、Ｒ³、及びＲ⁴は、各々独立して、アルキル基、（ＣＨ₂ＣＨ₂Ｏ）_mＨ（ｍは、２〜４０の整数を示す）、アリール基、アラルキル基、アルキルアリール基を表し、Ｒ¹、Ｒ²、Ｒ³、及びＲ⁴の２つが結合して複素環構造を形成していてもよく、Ｘは、各々独立して、１価又は２価の陰イオンを表し、ｎは、１又は２の整数を表す。） Among these, it is preferable that the sterilizing solution contains at least a quaternary ammonium salt. The quaternary ammonium salt is not particularly limited as long as it has a quaternary ammonium salt structure represented by the following (1) in the molecule. For example, a halogen such as benzalkonium chloride. Benzalkonium halides; benzethonium halides such as benzethonium chloride; alkylpyridinium salts such as cetylpyridinium chloride; alkyltrimethylammonium salts such as octyltrimethylammonium salt, lauryltrimethylammonium salt, myristyltrimethylammonium salt, and cetyltrimethylammonium salt; Examples thereof include oxyethylene alkylmethyl ammonium salts.

(In the formula (1), R ¹ , R ² , R ³ and R ⁴ are each independently an alkyl group, (CH ₂ CH ₂ O) _m H (m represents an integer of 2 to 40). , An aryl group, an aralkyl group, and an alkylaryl group, and ^{two of} R ¹ , R ² , R ³ , and R ⁴ may be bonded to form a heterocyclic structure, and each X is independently Represents a monovalent or divalent anion, and n represents an integer of 1 or 2.)

  Among these, from the viewpoint of bactericidal performance, alkylbenzyldimethylammonium salts are preferable, alkylbenzyldimethylammonium salts having an alkyl group having 8 to 18 carbon atoms are more preferable, and laurylbenzyldimethylammonium salts are more preferable. Such a quaternary ammonium salt has a high bactericidal effect, and since the decrease in the bactericidal effect due to volatilization or the like is small, the bactericidal effect can be maintained for a long period of time.

Although it does not specifically limit as a quaternary ammonium salt, Specifically, although shown by following formula (2), (3), (4), and (5) is mentioned.
[R (CH ₃ ) ₃ N ⁺ ] _n X Formula (2)
[R (CH ₃ ) N ⁺ (CH ₂ CH ₂ O) _{m ′} H [(CH ₂ CH ₂ O) _{m ″} H]] _n X ·· Formula (3)
[R (CH ₃ ) ₂ N ⁺ CH ₂ C ₆ H ₅ ] _n X Formula (4)
[RPy ⁺ ] _n X Formula (5)
(In the formulas (2), (3), (4), and (5), R each independently represents an alkyl group, and each X independently represents a monovalent or divalent anion. And m ′ and m ″ represent an integer of 2 to 40 and represent an integer of n or 2. Py is an abbreviation for pyridine.)

  Carbon number of the alkyl group represented by R is preferably 8-18, more preferably 10-16, and still more preferably 12-14. More specifically, an octyl group, a lauryl group, a myristyl group, and a cetyl group are preferable, and a lauryl group is more preferable. When the carbon number of the alkyl group represented by R is 8 or more, the sterilizing power of the sterilizing solution tends to be further improved. Moreover, since the carbon number of the alkyl group represented by R is 18 or less, the solubility of the active ingredient is further improved and the content of the active ingredient can be further improved. Power tends to improve.

The anion represented by X is not particularly limited, and examples thereof include F ⁻ , Cl ⁻ , Br ⁻ , I ⁻ , NO ⁻ , and SO ₄ ²⁻ . Among these, electronegativity higher Cl ^- is preferred.

  The content of the active ingredient is preferably 0.010 to 30% by mass, more preferably 0.10 to 5.0% by mass, and still more preferably 0.10% with respect to 100% by mass of the sterilizing solution. It is -1.0 mass%. When content of an active ingredient is 0.010 mass% or more, it exists in the tendency for bactericidal performance to improve more. Moreover, it exists in the tendency for skin irritation to be suppressed more because content of an active ingredient is 30 mass% or less.

(solvent)
The sterilizing solution contains a solvent. Although it does not specifically limit as a solvent, For example, water and / or a nonaqueous solvent are mentioned. By using a non-aqueous solvent, the solubility of the active ingredient or other ingredients tends to be further improved.

  Although it does not specifically limit as a nonaqueous solvent, For example, glycols, such as propylene glycol, butylene glycol, triethylene glycol, hexylene glycol, polyethyleneglycol, ethoxydiglycol, and dipropyleneglycol; Ethanol, n-propanol, and isopropanol Alcohols such as triglyceride, ethyl acetate, acetone, triacetin, and combinations thereof.

  The amount of the solvent is preferably 99.99 to 70% by mass, more preferably 99.9 to 95% by mass, and further preferably 99.9 to 99% with respect to 100% by mass of the total amount of the sterilization solution. % By mass. When the amount of the solvent is 70% by mass or more, the impregnation performance of the active ingredient into the fabric tends to be further improved. Moreover, when the amount of the solvent is 99.99% by mass or less, the active ingredient can be efficiently released from the wet wiper, and the sterilization performance tends to be further improved.

  The amount of the non-aqueous solvent is preferably 1.0 to 80% by mass, more preferably 1.0 to 30% by mass, and still more preferably 1.0 to 100% by mass of the total amount of the sterilizing solution. ˜5 mass%. When the amount of the solvent is 1.0% by mass or more, the impregnation performance of the active ingredient into the fabric tends to be further improved. Moreover, when the amount of the solvent is 80% by mass or less, the wet wiper tends not to dry quickly during wiping.

(Other ingredients)
The sterilizing solution may contain a surfactant, a lower alcohol, a chelating agent, an antiseptic, a coloring agent, a fragrance, a stabilizer, and the like.

  The surfactant is not particularly limited, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. Surfactant may be used individually by 1 type, or may use 2 or more types together.

  The nonionic surfactant is not particularly limited, and examples thereof include glycerin fatty acid esters such as glycerin fatty acid ester and glyceryl monostearate; polyglyceryl monooleate, polyglyceryl pentaoleate, polyglyceryl decaoleate, hexaglyceryl monolaurate, monolauric acid Polyglycerin fatty acid esters such as decaglyceryl, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate; polyoxyethylene glycerin fatty acid esters such as polyoxyethylene glyceryl monostearate; sorbitan monolaurate, mono Sorbitan fatty acid esters such as sorbitan oleate and sorbitan trioleate; polyoxyethylene monostearate Polyoxyethylene sorbitan fatty acid esters such as bitane and trioleic acid polyoxyethylene sorbitan; polyoxyethylene sorbite fatty acid esters such as monolauric acid polyoxyethylene sorbite and tetraoleic acid polyoxyethylene sorbite; sucrose lauric acid ester, etc. Sucrose fatty acid esters: polyoxyethylene lanolin, polyoxyethylene lanolin, lanolin alcohol, beeswax derivatives such as polyoxyethylene sorbit beeswax, polyoxyethylene castor oil, cured such as polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil Castor oils; polyoxyethylene sterols such as polyoxyethylene cholestanol ether / hydrogenated sterols; ethylene glycol monostearate, mono Polyethylene glycol fatty acid esters such as polyethylene glycol sulfonate; polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene behenyl ether; polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene Polyoxyethylene polyoxypropylene alkyl ethers such as polyoxypropylene decyl tetradecyl ether; Polyoxyethylene alkyl phenyl ethers such as polyoxyethylene nonylphenyl ether; Polyoxyethylene alkylamines and fatty acids such as polyoxyethylene stearamide Amides; Polyoxyethylene alkylphenyl ethers such as polyoxyethylene octylphenyl ether And alkyl dimethylamine oxides such as stearyl dimethylamine oxide.

  Although it does not specifically limit as an anionic surfactant, For example, Alkylbenzene sulfonates, such as sodium dodecylbenzenesulfonate; Fatty acid salts, such as sodium laurate; Polyoxyethylene lauryl ether sodium phosphate, Polyoxyethylene cetyl ether phosphate Phosphate salts such as polyoxyethylene alkyl ether phosphate such as sodium; N-acylaminohydrochloric acid such as sodium N-lauroyl-L-glutamate; Polyoxyethylene alkyl ether phosphates such as polyoxyethylene lauryl ether phosphate; N-acyl taurine salts such as sodium lauroylmethyl taurine and sodium myristoyl methyl taurine; sulfonates such as sodium tetradecene sulfonate; al such as sodium lauryl sulfate Polyoxyethylene alkyl ether sulfates such as polyoxyethylene lauryl ether sulfate; Le sulphates lauryl di aminoethyl sodium glycine, and the like alkyldiaminoethylglycine hydrochloride.

  Although it does not specifically limit as a lower alcohol, For example, C1-C4 water-soluble alcohol is mentioned. Specifically, monools such as methanol, ethanol, propanol, isopropanol, methoxyethanol, ethoxyethanol, methoxypropanol, methoxyisopropanol; ethylene glycol, propylene glycol, propanediol, butanediol, methylpropanediol, diethylene glycol, butynediol Diols such as glycerol; polyols such as glycerin, butanetriol and erythritol. A lower alcohol may be used individually by 1 type, or may use 2 or more types together.

  The chelating agent is not particularly limited as long as it has a metal capturing action. For example, complexant, alanine, ethylenediaminehydroxyethyl triacetate trisodium, edetic acid, edetate disodium, edetate disodium calcium, edetate trisodium, edet Examples include acid 4 sodium, sodium citrate, citric acid, gluconic acid, tartaric acid, phytic acid, sodium polyphosphate, and sodium metaphosphate. Among these, alanine, disodium edetate, disodium calcium edetate, sodium citrate, citric acid, gluconic acid, tartaric acid, sodium polyphosphate, and sodium metaphosphate are preferable. A chelating agent may be used individually by 1 type, or may use 2 or more types together.

  Examples of the preservative include organic acids and derivatives thereof such as benzoic acid, sodium benzoate, undelenic acid, salicylic acid, sorbic acid, potassium sorbate, dehydroacetic acid, sodium dehydroacetate, paraoxybenzoic acid esters and salts thereof; Phenol, chlorhexidine gluconate, cresol, chlorothymol, chlorophenesin, chlorocresol, dichloroxylenol, dichlorobenzyl alcohol, thiobischlorophenol, thymol, trichlorocarbanilide, trichlorohydroxydiphenyl ether, sodium phenoxide, parachlorophenol, halocarban , Phenylethyl alcohol, phenylphenol, sodium phenylphenol, phenoxyethanol, phenol, Phenols such as benzyl alcohol, photosensitizers such as platonin, pionine, Luminex, and photosensitizer NK143; plant extracts having antibacterial activity such as tea extract, hinokitiol, apple extract, and polylysine; glutaral, chloramine T, chlorhexidine , Diisemopropamidine diisethionate, zinc pyrithione, triclosan, pyrithione Na, furfural, chloramine T and the like. Preservatives may be used alone or in combination of two or more.

  The content of the sterilizing liquid in the wet wiper is preferably 50 parts by mass or more, more preferably 100 parts by mass or more, and further preferably 160 parts by mass or more with respect to 100 parts by mass of the fabric. When the content of the sterilizing liquid in the wet wiper is 50 parts by mass or more, the bactericidal effect tends to be further improved. Further, the content of the sterilizing solution in the wet wiper is preferably 500 parts by mass or less, more preferably 350 parts by mass or less, and further preferably 200 parts by mass or less with respect to 1 part by mass of the fabric. . When the content of the sterilizing liquid in the wet wiper is 500 parts by mass or less, the remaining wiping after wiping is reduced, and the slimy feeling when the fabric is touched tends to be further suppressed.

  It is preferable that the cloth is uniformly impregnated with the sterilizing solution.

[Method of manufacturing wet wiper]
Although it does not specifically limit as a manufacturing method of a wet wiper, For example, the method which has the fabric manufacturing process which manufactures a fabric, and the impregnation process which impregnates the disinfection liquid to the obtained fabric is mentioned.

[Fabric manufacturing process]
The fabric manufacturing process is a process of manufacturing a fabric, and a known method can be used depending on the type of the fabric. For example, in the case of using a non-woven fabric as a fabric, there are two processes, web formation and interfiber bonding.

  The web forming process is a process of arranging natural fibers, synthetic fibers, and the like in a sheet shape, and the specific mode of the process varies depending on the arrangement state of the fibers. The fiber arrangement state includes a parallel web in which fibers are arranged in the longitudinal direction, a cross web in which parallel webs are stacked on a cloth, and a random web having no fiber orientation. A cross web or a random web is preferable in that both the strength in the machine direction and the machine direction are increased and the occurrence of lint is suppressed. The web forming process for forming a cross web is particularly called a cross lay.

  The interfiber bonding step is a step of bonding fibers arranged in the web forming step with an adhesive, applying heat to a part of the fibers to melt and bonding them, or entwining the fibers with a needle or high-pressure water flow to fix them. The interfiber bonding method is not particularly limited. For example, resin bonding, thermal bonding using a heat roll, needle punching using a needle, spunlace that makes a fabric entangled with fibers by striking with a very high pressure water stream, stitching Manufacturing methods such as bonding, powder bonding, and solvent bonding can be used. Among these, the spunlace is preferable from the viewpoint that the coefficient of static friction between the front and back surfaces of the nonwoven fabric can be controlled by adjusting the natural fibers existing on the surface of the fabric by adjusting the water pressure during the entanglement.

[Impregnation process]
The impregnation step is a step of impregnating the cloth with a sterilizing solution. The method of impregnating the sterilizing solution is not particularly limited. For example, the roll surface (referred to as a circular surface) of the fabric wound around the bottle container is in contact with the bottom of the bottle container. And impregnating the cloth wound up in a roll by impregnating the sterilization liquid from the upper roll surface side; impregnating the cloth with the sterilization liquid and using the solvent in the sterilization liquid as necessary A method of partially distilling off by distillation or the like; a method of impregnating a cloth with a disinfecting solution, partially distilling off the solvent in the disinfecting solution by distillation or the like as required, and then impregnating with water. The solvent to be distilled off may remain in the wet wiper.

  More preferably, the entire surface of the fabric is impregnated uniformly. “Uniformly impregnated into the fabric” means that the disinfecting solution is present on the fabric surface without being biased. Occurrence of local mold can be prevented by uniformly impregnating the cloth with the sterilizing solution.

[Use]
The wet wiper of this embodiment can be used for various wiping objects and objects to be wiped.

  The wiping target is not particularly limited, and examples thereof include blood, body fluids, bacteria, fungi (including molds), viruses, and other biological substances. The wet wiper according to the present embodiment can wipe off adherents such as blood and adhesives, and can suppress recontamination of the object to be wiped.

  The wiped material is not particularly limited. For example, instruments such as hospital door knobs, handrails, beds, operating tables, and monitor touch panels; ME equipment such as syringe pumps, infusion pumps, artificial dialysis devices, and ventilators ; Food factory belt conveyors, work tables, stainless steel containers, refrigerators, cooking utensils, and other work supplies; washbasins, toilet seats, furniture, and other housing supplies; care facility equipment; and human bodies.

  Among these, the wet wiper of this embodiment is preferably for medical use. “Medical” means, for example, hospital door knobs, handrails, beds, operating tables, monitor touch panels, etc .; ME equipment such as syringe pumps, infusion pumps, artificial dialysis devices, and ventilators; Used for appliances. In medical applications, extremely high cleanliness is required. The wet wiper of the present embodiment can wipe various wiping targets with a single use.

  Hereinafter, although this embodiment is concretely demonstrated by an Example and a comparative example, this embodiment is not limited only to these Examples. The evaluation method and measurement method used in this embodiment are as follows.

<Measuring method of static friction coefficient>
The static friction coefficient was measured according to JIS k 7125. The measurement conditions were as follows. Note that the wet wiper of the sample was measured in a wet state.
Counterpart material: Acrylic board Sliding piece total mass: 200g
Sliding piece area (contact area): 40 cm ²
Test speed: 100 mm / min

<Method for measuring area% of natural fiber on fabric surface>
The cross section of the fabric was photographed with a scanning electron microscope, and the natural fiber reflected to a depth of 10 μm from the surface was separated from the synthetic fiber and the void by image analysis, and the area% was calculated.

<Measurement method of fabric density>
The fabric weight per unit area (weight per 1 m ² (g)) was measured. Next, the thickness (mm) of the fabric was measured with a dial thickness gauge, and the density of the fabric was calculated by the following formula.
Fabric density (g / cm ³ ) = (weight per unit area / cloth thickness) / 1000

<Method for evaluating surface wiping performance>
A white enamel bat was coated with 0.5 mL of a 5% aqueous solution of bovine lyophilized blood in water and spread to 5 cm × 10 cm. Then, after drying at 25 degreeC for 6 hours, it wiped once with the wet wiper over the load of 16 g / cm < ² >. After wiping, the remaining wiping state of blood remaining on the enamel bat was visually confirmed and evaluated according to the following evaluation criteria.
(Evaluation criteria: wiping performance)
A: Little blood is left on the bat.
○: Slight blood remains on the bat.
Δ: Some blood left on the bat.
X: A lot of blood remains on the bat.

<Evaluation method of back surface wiping performance>
11 kinds of powder for JIS test (Kanto loam baked product) were screened from a 200 mesh sieve as 1 g / m ² as dust dirt on a stainless steel bat. Thereafter, the stainless steel bat was wiped once with a wet wiper under a load of 16 g / cm ² . After wiping, the remaining state of the dust stain remaining on the enamel bat was visually confirmed and evaluated according to the following evaluation criteria.
(Evaluation criteria: wiping performance)
A: Dust and dirt are hardly wiped off on the bat.
○: Dust remains slightly wiped off the bat.
Δ: Dust dirt is slightly wiped off the bat.
X: Dust dirt is considerably left on the bat.

<Method for evaluating workability during wiper wipe>
Workability when wiping the table mat (glass plate) with a wiper was evaluated by the 10 panelists according to the following evaluation criteria.
○: The wiper can be wiped without being caught on the table mat. (Good)
X: The wiper is caught on the table mat and is difficult to wipe off.

<Preparation of disinfectant solution>
As an active ingredient, 1.5 parts by mass of a 50% by mass laurylbenzyldimethylammonium chloride aqueous solution and 98.5 parts by mass of purified water are put into a stainless steel container, stirred for 15 minutes at 300 rpm, and a 0.75% by mass sterilizing solution is obtained. Prepared.

[Example 1]
Nonwoven fabric produced by a spunlace method (composition ratio: wood pulp / polyester = 50/50) in which a high-pressure water stream is applied to a web in which polyester raw cotton is laid on a 28 g / m ² wood pulp sheet to 28 g / m ^2. ) Surface area% natural fiber density and density. In addition, the nonwoven fabric was cut into a sheet having a width of 15 cm, and perforated every 18 cm in the length direction to form 90 rolls. The non-woven fabric wound up in a roll shape is placed so that the roll-shaped surface is in contact with the bottle container, and 2.5 times the amount of the sterilizing liquid is impregnated from the upper roll surface side with respect to the mass of the roll winding to wet. A wiper was produced.

  The bottle container was covered and allowed to stand for 14 days, and then the wet wiper was taken out to evaluate the coefficient of static friction, the scraping performance, and the workability when wiping the wiper.

[Examples 2 to 4]
A wet wiper was produced in the same manner as in Example 1 except that a nonwoven fabric roll produced by sequentially laminating the fibers (raw cotton) shown in Table 1 and forming a web was entangled by a spunlace manufacturing method. Evaluation was carried out in the same manner as in 1. The results are shown in Table 1.

[Comparative Examples 1 and 2]
A non-woven roll produced by entanglement of a web made of wood pulp fiber and polyester fiber in a weight ratio of 45:55 (Comparative Example 1) and a rayon fiber (Comparative Example 2) by a spunlace manufacturing method is used. A wet wiper was produced in the same manner as in Example 1 except that the evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

[Comparative Example 3]
A wet wiper was produced in the same manner as in Example 1 except that a non-woven roll produced by heat-bonding a web prepared by mixing fibers (raw cotton) shown in Table 1 in advance was used. The evaluation was conducted. The results are shown in Table 1.

  The wet wiper of the present invention has industrial applicability in various uses for the purpose of cleaning, sterilizing and sterilizing various surfaces.

Claims (6)

A fabric and a sterilizing solution impregnated in the fabric,
A wet wiper having a coefficient of static friction with respect to an acrylic plate that differs by 0.10 or more on the front and back surfaces. The coefficient of static friction with respect to the acrylic plate on the surface of the wet wiper is 0.60 to 1.5,
The coefficient of static friction with respect to the acrylic plate on the back surface of the wet wiper is 0.30 to 1.2.
The wet wiper according to claim 1.   The wet wiper according to claim 1 or 2, wherein the fabric includes natural fibers and synthetic fibers. On the surface of the fabric, 15 to 40 area% natural fiber is present,
10 to 35 area% of natural fiber is present on the back surface of the fabric,
The wet wiper of any one of Claims 1-3.   The wet wiper according to any one of claims 1 to 4, wherein the sterilizing solution contains a quaternary ammonium salt.   The wet wiper according to any one of claims 1 to 5, which is for medical use.