JP2005146255A - Method for reducing allergen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means capable of efficiently inactivating or removing an allergen or its precursor. <P>SOLUTION: The method for reducing an allergen comprises spraying or applying an agent for reducing an allergen onto the surface of the object, and wiping away the agent with an absorbent article before the agent is dried, wherein the agent for reducing an allergen contains water and a water-soluble polymer compound which is obtained by substituting at least part of the hydrogen atoms of hydroxy groups or carboxy groups of a polymer compound selected from derivatives having a structural unit having hydroxy groups or carboxy groups with a specific group containing a polyether group and further the derivatives are derived from cellulose, starch, and their derivatives. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for easily removing an allergen or a precursor thereof floating in a residential space, and an article containing an allergen reducing agent used in the method.

  In recent years, allergic diseases caused by house dust tend to increase and become a social problem. Examples of house dust that can cause allergies include pollen, spider spores, and mite carcasses and feces, but these are very fine substances of about several μm to several tens of μm. Even simple activities such as walking by humans can soar easily and pollute the interior space. Since house dust that floats up and floats in such a space cannot be removed at all by general cleaning actions, a method for suppressing house dust scattering and effectively removing house dust with simple cleaning activities is eager. Has been.

Patent Document 1 discloses a house dust treatment agent that sprays a solution containing polyvinyl alcohol into a space. Patent Document 2 discloses a method for removing suspended particulate matter in a home environment. Patent Document 3 describes an allergen detoxifying composition in which the amount of dust remaining in the fiber by a dust control test is 30% or more, and an MIU value by a friction coefficient analysis method is 3.0 or less. High molecular polymers are described as specific compounds. Patent Document 4 describes a technique for controlling an allergen by adhering a small mite allergen to the surface so as to stabilize the allergen using a water-soluble polysaccharide such as hydroxypropylcellulose. Patent Document 5 describes a household formulation containing a vehicle system containing a hydrophobic modified water-soluble polysaccharide polymer containing a water-soluble polysaccharide polymer main chain and a hydrophobic moiety, and household components.
JP 2002-128680 A Special Table 2000-504621 International Publication No. 02/28179 Pamphlet British Patent No. GB2300122 Special table 2002-508438 gazette

  However, inactivation and removal of allergen substances could not be sufficiently performed even by means described in the above document.

  The subject of this invention is providing the method which can inactivate and remove allergen and its precursor effectively.

The present invention relates to cellulose, starch, and derivatives thereof, wherein at least part of the hydrogen atoms of the hydroxy group or carboxy group of the polymer compound selected from derivatives having a structural unit having a hydroxy group or a carboxy group, The present invention relates to a method for reducing an allergen by spraying or applying a water-soluble polymer compound substituted with a group represented by the general formula (1) and an allergen reducing agent containing water onto a target surface and wiping with a water-absorbent article until drying. .
-R ^1a- (OR ^1b ) _p ^{-AR 1c} (1)
[Wherein, R ^1a is an alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group or an oxo group, R ^1b is an alkylene group having 1 to 6 carbon atoms, and R ^1c is a hydroxy group. An alkyl group having 4 to 30 carbon atoms which may be substituted or a sulfoalkyl group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. A is a group selected from —O—, —OCO—, and —COO—, p is 0 to 50 (average number of added moles), and p (OR ^1b ) may be the same or different. ]

  The present invention also relates to a cleaning method for performing cleaning by suction or sweeping after performing the method of the present invention.

  Moreover, this invention relates to the cleaning method which wipes off the object surface with the allergen reduction sheet | seat formed by impregnating the flexible sheet with the allergen reducing agent which concerns on the said invention, and also performs the cleaning or sweeping cleaning by suction. In this connection, the present invention relates to an allergen-reducing sheet that is impregnated with the allergen-reducing agent according to the present invention, with an indication that it is used for performing the specific cleaning method. .

  According to the present invention, the allergen on the surface can be reduced, and the allergen can be removed particularly efficiently.

The allergen reducing agent according to the present invention has a structural unit having a hydroxy group or a carboxy group, and in particular, cellulose, starch, and derivatives thereof composed of these structural units as a main chain, A water-soluble polymer compound wherein a part or all of the hydrogen atoms of the hydroxy group or carboxy group of the derivative having a structural unit having a group or a carboxy group are substituted with a group represented by the following general formula (1): ) Component)]. In the present invention, the water solubility of the water-soluble polymer compound means that it is soluble in at least 1% by mass or more in 20 ° C. water.
-R ^1a- (OR ^1b ) _p ^{-AR 1c} (1)
[Wherein, R ^1a is an alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group or an oxo group, R ^1b is an alkylene group having 1 to 6 carbon atoms, and R ^1c is a hydroxy group. An alkyl group having 4 to 30 carbon atoms which may be substituted or a sulfoalkyl group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. A is a group selected from —O—, —OCO—, and —COO—, p is 0 to 50 (average number of added moles), and p (OR ^1b ) may be the same or different. ]

R ^1a is preferably an ethylene group, propylene group, trimethylene group, 2-hydroxytrimethylene group, 1-hydroxytrimethylene group, 1-oxoethylene group, 1-oxotrimethylene group, 1-methyl-2-oxoethylene. A 2-hydroxytrimethylene group and a 1-hydroxytrimethylene group. R ^1b is preferably an ethylene group or a propylene group, and R ^1c is preferably an alkyl group having 5 to 25 carbon atoms and further 6 to 20 carbon atoms which may be substituted with a hydroxy group, or 2-sulfoethyl. Group, 3-sulfopropyl group, 3-sulfo-2-hydroxypropyl group, 2-sulfo-1- (hydroxymethyl) ethyl group. A is preferably —O—, and p is preferably a number of 0 to 40, more preferably 0 to 30, still more preferably 0 to 20, and particularly preferably 10 to 20 (average added mole number).

  As the cellulose derivative, hydroxyalkyl (1 to 3 carbon atoms) cellulose and alkyl (1 to 3 carbon atoms) cellulose can be selected, and as starch derivatives, hydroxyalkyl (1 to 3 carbon atoms) starch, alkyl (carbon) Formulas 1-3) Starch and carboxymethylated starch can be selected. In the present invention, it is particularly preferable to select hydroxyalkyl (carbon number 1 to 3) cellulose and alkyl (carbon number 1 to 3) cellulose. In the cellulose derivatives and starch derivatives, the substitution degree of the alkyl group, hydroxyalkyl group, or carboxymethyl group is 0.01 to 3.5, more preferably 0.1 to 3, and further 1 per constituent monosaccharide residue. To 3, particularly 1.5 to 2.8 is preferred.

The component (a) of the present invention is a polymer compound obtained by substituting part or all of the hydrogen atoms of the hydroxyl group or carboxy group of the cellulose, starch, and derivatives thereof with the substituent of the general formula (1). The substitution degree of the substituent (1) is 0.0001 to 1, more preferably 0.0005 to 0.5 per monomer unit residue containing a hydroxyl group or a carboxy group (for example, per constituent monosaccharide residue). Further, 0.001 to 0.1, particularly 0.001 to 0.05 is preferable. In the general formula (1), when R ^1c is a sulfoalkyl group, the degree of substitution of the sulfoalkyl group is per monomer unit residue containing a hydroxyl group or a carboxy group (for example, per constituent monosaccharide residue), 0 to 1, more preferably 0 to 0.8, and particularly preferably 0 to 0.5.

  The weight average molecular weight of the component (a) is preferably 10,000 to 2,000,000, more preferably 50,000 to 1,500,000, particularly preferably 100,000 to 600,000. The weight average molecular weight can be determined by high performance anion exchange chromatography (HPAEC) with a pulsed amperometric detector or capillary electrophoresis.

Some of the component (a) of the present invention, a cellulose derivative or starch derivative and R ^1d in WO00 / 73351 described in JP way _{^{- (OR 1b) p -A-}} R 1c [R 1d is 3 to 6 carbon atoms An epoxidized alkyl group, a halogenated alkyl group having 1 to 6 carbon atoms which may be substituted with a hydroxy group, a carboxy group or a carboxyalkyl group having 2 to 6 carbon atoms or a derivative thereof; R ^1b , p , A and R ^1c have the same meaning as described above. It is obtained by sulfonating with a normal sulfonating agent if desired.

Although the component (a) of the present invention is a water-soluble polymer compound, it partially has a hydrophobic group as R ^1c . On the other hand, allergens, especially mite allergens, are water-soluble. By using the aqueous composition in which the component (a) of the present invention is dissolved in water, the allergen dissolved in contact with the aqueous composition is covered by the hydrophobic group of the component (a) in the solution. Presumed to have a structure. As a result, the allergen is in a state of being coated with a polymer compound, and it is difficult to develop allergy, which is considered to be regarded as a reduction in allergen.

  The allergen reducing agent according to the present invention preferably contains 0.005 to 10% by mass of component (a), more preferably 0.01 to 5% by mass, and particularly preferably 0.05 to 1% by mass.

  The allergen reducing agent according to the present invention can also contain a polymer compound other than the component (a) as long as the effects of the present invention are not impaired. In particular, the allergen reducing agent has a high structural unit having a hydroxy group or a carboxy group. A water-soluble polymer compound in which at least a part of the hydrogen atom of the hydroxy group or carboxy group of the molecular compound is substituted with the group represented by the general formula (1) can be used.

  The allergen reducing agent according to the present invention contains water [hereinafter referred to as component (b)] as the balance in addition to the following optional components. The water is preferably as close to pure water as possible, but a grade that does not affect the compounding components or a grade that does not substantially contain a compound that can become an allergen as an impurity may be used. Specifically, sterilized water sterilized with chlorine or the like, ion-exchanged water from which metal components such as calcium existing in a minute amount are removed, and the like can be used.

  The component (b) is a solvent such as the component (a), and is blended as the balance, but when blended directly on the solid surface, it is blended at 80% by mass or more, particularly 90% by mass or more. The upper limit is preferably 99.995% by mass or less.

  The allergen reducing agent according to the present invention preferably contains a water-soluble organic solvent (hereinafter referred to as component (c)) for the purpose of enhancing the stability of the component (a) in the allergen reducing agent. A water-soluble organic solvent that forms an azeotrope with water and has an azeotropic temperature of less than 100 ° C. with water at 1013.25 hPa (760 mmHg) is preferred. Among the compounds that form an azeotrope with water described in Tables 8 and 43 on page II-147, it is preferable to use a compound having an azeotropic temperature of less than 100 ° C, preferably 60 to 90 ° C. Preferred specific examples of component (c) include ethanol, cyclohexane, 2-butanol, cyclohexanol, cyclohexanone, cyclohexane, toluene, 1-butanol, 2-butanol, 1-propanol, 2-propanol, 1-hexanol, hexane, 1 -Heptanol, 1-pentanol, 2-pentanol can be mentioned, and a C2-C7 alcohol compound is preferable. In particular, ethanol, 1-propanol, and 2-propanol are most preferable from the viewpoint of the allergen removing effect.

  (C) Content of a component is 0-50 mass% in the allergen reducing agent which concerns on this invention, Furthermore, 0.5-20 mass%, Especially 1-18 mass% is preferable. In the case of using an allergen removing method of applying or spraying on a hard surface such as flooring and wiping with an absorbent, or impregnating the flexible sheet such as a nonwoven fabric with the allergen reducing agent according to the present invention, (c) In the allergen reducing agent according to the present invention, the component is preferably 8% by mass or less, more preferably 5% by mass or less, giving priority to dissolving the allergen in an aqueous solution rather than increasing the drying rate. It is preferable in that allergens are taken in and rendered harmless.

  In the present invention, it is preferable to contain an arthropod repellent (hereinafter referred to as component (d)), and by continuously using the allergen reducing agent according to the present invention containing component (d), And the like, and the absolute amount of arthropod-derived allergens can be reduced. Here, the arthropod repellent of the present invention is defined as a substance having an effect of repelling mites, and the repellent rate of mites is 50% or more by the following approach prevention method.

Repellent rate measurement method (entrance prevention method)
Test medium: A 9 cm petri dish is fixed to the pressure-sensitive adhesive sheet plate, and about 10,000 catfish mites are released together with the medium. Next, a petri dish having a diameter of 4 cm is placed in the center of the petri dish, and the filter paper is cut to the same diameter and spread on the bottom, so that 0.5 ml of a 10% by mass test substance ethanol solution is soaked in the filter paper. In the center of the filter paper, 500 mg of a mixed feed of powdered feed for mice and dry yeast is placed.
Comparative culture medium: A comparative culture medium is prepared in the same manner except that another 9 cm petri dish is fixed to the same pressure-sensitive adhesive sheet plate and ethanol is used as the solution to be infiltrated into the filter paper in the test culture medium.

These were transferred under conditions of 25 ° C and 75% RH, and after 48 hours, the number of mites that had entered the feed in the center was counted, and the repelling rate (%) was calculated from the difference between the test medium and the comparison medium using the following formula. To do. The tick count is measured under a stereomicroscope.
Repelling rate (%) = (1−number of mite invading test medium / number of mite invading comparison medium) × 100

  Preferred compounds as the component (d) of the present invention include, from the viewpoint of safety, an extract obtained from a natural material, a compound obtained by isolating a compound present in the natural material extract from the natural material, or a natural material. Compounds obtained by synthesizing compounds present in the raw material extract and mixtures thereof are preferred, and specifically, the following compounds are preferred.

(D-1): Tetrahydrolinalool, Bornyl Acetate, Milcenyl Acetate, Cedryl Acetate, Lavandry Acetate Rate (Citronellyl Isolate), Terpinyl Propionate (Terpinyl Propionate), Linallyl Formate (Citronellyl Tigrate), Citronellyl Tigrate (Citronellyl Vegrate, Nopyl Acetate) Re Lyral, citronellyloxyacetaldehyde, 2,6,10-trimethyl-9-undecanal (2,6,10-Trimethyl-9-Undecanal), α-ionone, β- Yoon (β-Ione), Iron (Irone), α-Damascon (α-Damascone), β-Damascone (β-Damascone), Nootkatone, Cedryl Methyl Ether (Cedryl Methyl Ether), Isomenton (Isomenh) Citronellal, linalool, citronellol, citral, L-menthol, p-menthane, α-pinene, β-pinene, d-limonene, geraniol, α Terpineol, β-terpineol, γ-terpineol, 1,8-cineole, p-menthan-8-ene-1,2-diol, eugenol, benzylformate, benzyl acetate, benzylpropionate, benzylbutyrate, benzylvale A synthetic or isolated fragrance selected from rate, benzyl caproate, benzyl phenyl ketone, benzophenone, linalool, α-hexylcinnamic aldehyde, coniferyl aldehyde, jasmon, dihydrojasmon, methyl jasmonate, methyl dihydrojasmonate alone or 2 Mixture of more than seeds (d-2): lemongrass oil, lavender oil, orange oil vetiver oil, patchouli oil, cananga oil, clove oil, cajedput oil, citronella oil, nutmeg oil, pepper oil, sandalwood oil Bulk oil, Gazin oil, Ginger oil, Campo oil, Kubewe oil, Lemongrass oil, Corn mint oil, Anise oil, Lang oil, Cinnamon oil, Mace oil, Palomarosa oil, Fennel oil, Columnus oil, Times oil, Neem Oil, cinnamon leaf oil, cedarwood oil, or a mixture of two or more plant essential oils (d-3): hinokitiol and / or hinokitiol derivative (d-4): bamboo leaf, millipede, mugwort, celery, and Plant extract obtained by extracting dodomi with alcohol

  In the present invention, those of (d-1) and (d-2) are particularly preferred, and the compound of (d-1) is particularly preferably jasmon, dihydrojasmon, methyl jasmonate, methyl dihydrojasmonate, (d-2) As the plant essential oil, columnar oil, cinnamon leaf oil, clove oil, lemongrass oil, and cedarwood oil are particularly preferable.

  The allergen reducing agent according to the present invention preferably contains the component (d) in an amount of 0.001 to 2% by mass, more preferably 0.005 to 1% by mass, and particularly preferably 0.01 to 0.5% by mass. . In addition, when mix | blending a fragrance | flavor component other than (d) component, it is 2 mass% or less in total with (d) component, Furthermore, 1 mass% or less, Especially 0.5 mass% or less is preferable.

  In the present invention, it preferably contains a bactericidal agent (hereinafter referred to as component (e)), adheres to mold spores floating in the air known as an allergen substance, suppresses the growth of mold, etc. It is possible to reduce the absolute amount of allergen substance derived from it.

  The antibacterial compound of the component (e) of the present invention is an antibacterial test according to the method of JIS L 1902 “Testing the antibacterial properties of textiles” using a cloth in which 1% by mass of the compound is uniformly adhered to a cotton metal cloth # 2003. It is a compound that shows a blocking zone. Examples of such compounds are those described on pages 501 to 564 of “Science of cosmetics, pharmaceutical preservatives and fungicides” (by Koichi Yoshimura and Hirofumi Takigawa, issued by Fragrance Journal, April 10, 1990). You can choose from.

  As the component (e) of the present invention, the following antibacterial compounds (I) to (IV) are particularly preferable.

(I) The solubility in water at 20 ° C. is 1 g / 100 g or less, preferably 0.5 g / 100 g or less, the molecular weight is 100 to 420, preferably 150 to 410, the melting point is 40 ° C. or more, and contains a quaternary ammonium group. Antibacterial compounds that do not (except organic peracids or organic peroxides)
(II) Water-soluble quaternary ammonium type antibacterial compound (III) 2 having at least one alkyl group having 8 to 16 carbon atoms and having a solubility in water at 0 ° C. of 2 g / 100 g or more, preferably 5 g / 100 g or more One or more antibacterial compounds (IV) selected from-(4-thiocyanomethylthio) benzimidazole, polylysine, polyhexamethylene biguanide and chlorhexidine glucuronate Silver, copper having a solubility in water at 20 ° C exceeding 1 g / 100 g , Metal salt selected from zinc

  Preferred compounds satisfying the properties of (I) are triclosan, bis- (2-pyridylthio-1-oxide) zinc, 2,4,5,6-tetrachloroisophthalonitrile, trichlorocarbanilide, 8-oxyquinoline. , Dehydroacetic acid, benzoic acid esters, chlorocresols, chlorothymol, chlorophene, dichlorophene, bromochlorophene, and hexachlorophene. Triclosan is particularly preferable because it has an excellent effect on the problems of the present invention. Triclosans described in JP-A-11-189975 are also good, and specifically, dichlorohydroxydiphenyl ether and monochlorohydroxydiphenyl ether are preferable.

  As the compound of (II), it is also preferable to use a quaternary ammonium compound of the following general formula (2) or (3).

[In the formula, R ^2a and R ^3a are each an alkyl group or alkenyl group having 5 to 16 carbon atoms, preferably 7 to 16 carbon atoms, preferably an alkyl group, and R ^2d and R ^2e each have 1 carbon atom. Is an alkyl group or hydroxyalkyl group of ˜3. T is -COO-, -OCO-, -CONH-, -NHCO-, or

It is. n is 0 or 1. R ^2b and R ^2c are each an alkylene group having 1 to 6 carbon atoms or — (O—R ^2f ) _m —. Here, R ^2f is an ethylene group or a propylene group, preferably an ethylene group, and m is a number of 1 to 10, preferably 1 to 5. Y ^- is an anionic group, preferably a halogen ion or an alkyl sulfate ion having 1 to 3 carbon atoms. ]

The most preferable quaternary ammonium compounds include the following. Y ⁻ in the formula has the same meaning as described above.

  Polylysine is particularly suitable as the compound (III).

  As the compound of (IV), water at 20 ° C. among the compounds containing silver, copper, and zinc described in Chemical Handbook Basic Edition (Revised 3rd Edition), pages II-166 to II-177, Table 8.42 A compound having a solubility in water exceeding 1 g / 100 g can be selected. Of these, zinc salts are preferred in the present invention, and compounds selected from zinc sulfate, zinc chloride, and zinc acetate are particularly preferred.

  As component (e) of the present invention, triclosan, a compound of general formula (2), polylysine, and one or more selected from zinc sulfate, zinc chloride, and zinc acetate have a favorable effect on reducing allergens. Most preferred.

  The content of the component (e) is preferably 5% by mass or less, more preferably 0.001 to 3% by mass, particularly preferably 0.005 to 2% by mass in the allergen reducing agent according to the present invention.

  The allergen reducing agent according to the present invention is an aqueous solution (the component to be dispersed may be present) in which the component (a) and optionally the components (c) to (e) are dissolved in the component (b) water. It is a form. In addition, the pH at 20 ° C. of the allergen reducing agent according to the present invention is preferably 5.5 to 8.5, more preferably 6.5 to 8.0, from the viewpoint of safety and base damage. . Examples of pH adjusters include inorganic acids such as hydrochloric acid and sulfuric acid, acid agents such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid, and maleic acid, and sodium hydroxide and hydroxide. Alkaline agents such as alkali metal hydroxides such as potassium, carbonates such as sodium carbonate and potassium carbonate, ammonia and derivatives thereof, amine compounds such as monoethanolamine, diethanolamine, triethanolamine, aminomethylpropanol and aminomethylethanol These are preferably used alone or in combination. In the present invention, substances that solidify by drying other than the component (a), and substances that are in a solid state at 30 ° C. or less and have no adhesiveness or film-forming property aggregate and solidify allergens during drying. Therefore, it is preferable to use in combination for the purpose of improving physical allergen removability. From the viewpoint of allergen detoxification, even if these solidified substances are less than 0.01% by mass, an allergen reducing effect can be obtained. For hard surface allergens, the solidified substance should be small, and it is designed to contain 1% or less, further 0.1% or less, especially 0.05% or less in the allergen-reducing agent. Therefore, the pH adjusting agent is also used by adjusting the concentration in consideration of this point. Further, the loss on drying described in JISK0067 in the allergen reducing agent according to the present invention (method of heating and drying under atmospheric pressure, 105 ° C./2 hours) is 95% or more, more 98% or more, more 99% or more, particularly It is preferable that it is 99.5% or more.

  The allergen reducing agent according to the present invention includes, in addition to the components (a) to (e), surfactants other than the component (e) such as alkylglycoside, chelating agents such as citric acid, diethylene glycol monobutyl ether, and the like Water-soluble solvents such as glycols, thickeners such as xanthan gum, fungicides / preservatives, and fragrances other than the component (c) can be blended, but their use is the stability and physical properties of allergen reducing agents. On the other hand, sufficient consideration should be given to allergenicity. The total amount of components other than the components (a) to (e) is preferably 2% by mass or less, more preferably 1.5% by mass or less, and most preferably 1% by mass or less.

  As one form of use of the allergen reducing agent according to the present invention, an allergen reducing agent in a spray container obtained by filling a container equipped with a spray device with the allergen reducing agent can be mentioned.

  The allergen reducing agent in a spray container is used in a method for directly spraying a treatment target to render the allergen on the target surface harmless. The target surface here refers to all surfaces to which allergens can adhere, but for example, flooring such as flooring, cushion floor, and tatami, furniture made of wood, leather, glass, metal, plastic And electrical appliance surfaces and painted surfaces thereof.

  The method of directly spraying the allergen reducing agent according to the present invention onto the object to be treated is particularly effective particularly for hard surfaces such as floors. In that case, after spraying, the allergen reducing agent is not dried and the water absorbing property is reduced. By wiping with an article, the allergen can be adsorbed to the absorber and removed. As the water absorbent article, a liquid absorbent article such as a cloth such as a cloth, a nonwoven fabric, a porous article such as a sponge or paper can be used. In particular, it is suitable in terms of the amount of liquid that can be held by the nonwoven fabric or sponge and workability, and the form is preferably a sheet shape or a roller shape. In general, when the wiping process is performed many times using one absorber, the allergen once adsorbed and removed by the absorber may be reattached to the hard surface, and a sufficient allergen reduction effect may not be obtained. However, the present invention does not have such a problem. This is because even when the allergen is reattached to the treated surface, the allergen once dissolved in the allergen reducing agent according to the present invention is rendered harmless by the component (a) in the solution. Therefore, the above method may be performed by impregnating an absorbent with an allergen reducing agent. Of course, it is also preferable to take measures for suppressing re-adhesion, in which case it is preferable to use a material containing cellulose fibers in the absorber, and in detail, use a fiber structure containing cellulose fibers described later. Can do.

  As the spray device, a spraying method using a propellant such as aerosol is possible, but in the present invention, it is preferable to use a trigger type sprayer. As the trigger type sprayer, one that ejects 0.1 g to 2.0 g, preferably 0.2 to 1.5 g, more preferably 0.3 g to 1.0 g in one stroke is good. As the trigger type spray container used in the present invention, a pressure accumulation type trigger as disclosed in Japanese Utility Model Publication No. 4-37554 is particularly preferable in terms of spray uniformity.

As a spray characteristic, a trigger type sprayer in which the area where the liquid is applied when spraying from a place 15 cm away onto an object placed perpendicular to the ground is 100 to 800 cm ² , and more preferably 150 to 600 cm ² is preferable. In the present invention, the higher allergen removal effect can be obtained by spraying the component (a) uniformly so as to be preferably 10 to 4000 mg, more preferably 50 to 4000 mg per 1 m ³ of space.

On the other hand, as the flexible sheet for impregnation of the allergen-reducing sheet impregnated with the allergen reducing agent, it is preferable to use a fiber structure containing cellulosic fibers and a laminate of the fiber structures. . Examples of the fiber structure include a nonwoven fabric, a woven fabric, and a knitted fabric. In the present invention, it is particularly preferable to use a nonwoven fabric from the viewpoint of cleanability. Examples of the cellulosic fibers include natural fibers such as cotton and hemp, and cellulosic chemical fibers such as viscose rayon, tencel and acetate. preferable. Examples of fibers that can be used in addition to cellulosic fibers include polyolefin fibers such as polyethylene (PE) and polypropylene (PP), polyester fibers such as polyethylene terephthalate, polyamide fibers such as nylon, polyacrylonitrile fibers, and polyvinyl alcohol. Mention may be made of system fibers. The flexible sheet preferably has a thickness of 0.2 to 10 mm, more preferably 0.4 to 5 mm under a load of 3 g / m ² in a dry state. Moreover, it is preferable that it has water retention property which can hold | maintain 1 to 4 times the mass of water with respect to dead weight. As for the impregnation rate, it is preferable to impregnate the flexible sheet, particularly the fiber structure, with the allergen reducing agent in a mass ratio of 1.5 to 5 times, particularly 2.2 to 3.5 times. The amount of impregnation varies depending on the fiber diameter and basis weight of the fiber structure.

  In the present invention, a fiber structure containing preferably 40 to 100% by mass, more preferably 50 to 90% by mass of cellulosic fibers in the fiber structure to be the flexible sheet is suitable.

In addition, the fiber structure as the flexible sheet preferably has a density (bulk density) of 0.01 to 1.0 g / cm ³ under a load of 3.0 gf / cm ² , and 0.05 to more preferably from 0.5 g / cm ^3, and still more preferably 0.1 to 0.3 g / cm ^3. Also, the basis weight is preferably 5 to 150 g / m ^2, more preferably from 10 to 100 g / m ^2, and still more preferably 20 to 70 g / m ^2.

  In the present invention, when a nonwoven fabric is used for the flexible sheet, in addition to dry nonwoven fabrics such as wet nonwoven fabric, chemical bond, thermal bond (air-through), air raid, etc., spunlace, spunbond, meltblown, needle punch In particular, at least one selected from wet nonwoven fabrics, chemical bonds, thermal bonds (air-through), meltblowns, or spunlaces is effective from the viewpoint of the effects of the present invention. Moreover, it is preferable to use the low entanglement nonwoven fabric comprised from a fiber length of 20 mm or more, especially 30-100 mm, especially 35-65 mm.

  Examples of such low-entangled nonwoven fabric include spunlace nonwoven fabric, thermal bond nonwoven fabric such as air-through, spunbond nonwoven fabric, and three-dimensional raised nonwoven fabric. In this case, the low entangled nonwoven fabric composed of fibers having a fiber length of 20 mm or more does not require that the fiber lengths of all the constituent fibers be 20 mm or more, and in the raw material of the nonwoven fabric and / or in the production process It is permissible to include fibers with a fiber length of less than 20 mm that are inevitably mixed and / or generated. The wiping material of the present invention is also preferably formed with a large number of irregularities on the surface thereof by hot embossing from the viewpoint of improving operability during cleaning (reducing frictional resistance).

  As described above, the allergen reducing agent according to the present invention is used for the allergen reducing method in which the agent is sprayed or applied to the target surface and wiped with a water-absorbent article before drying. The present invention also provides the allergen reducing agent according to the present invention, which is labeled as being used for performing a specific allergen reducing method.

  The present invention also proposes the following cleaning method in reducing allergens. That is, before performing cleaning or sweeping by suction, the allergen-reducing agent according to the present invention is sprayed or applied to the target surface and wiped with a water-absorbent article before drying (hereinafter referred to as cleaning method 1). It is said). Further, a cleaning method (hereinafter referred to as a cleaning method) is performed by wiping the target surface with the same allergen-reducing sheet formed by impregnating the flexible sheet with the allergen-reducing agent according to the present invention, and further performing cleaning or cleaning by suction. 2). Cleaning or sweeping by suction causes allergens to scatter, and the effect of reducing the allergen in advance can be more effective than performing the allergen reducing process after cleaning. In particular, the cleaning method 1 of the present invention has been found that, unlike the conventional wiping cleaning, an excellent allergen removability can be obtained by treating the hard surface with the allergen reducing agent according to the present invention prior to the cleaning. In addition, the description of the said flexible sheet can be referred to the water absorbing article used for wiping off. The present invention includes wiping with a water-absorbent article impregnated with the allergen reducing agent according to the present invention. In this regard, according to the present invention, there is provided the allergen-reducing agent of the present invention with an indication that the cleaning method 1 or the cleaning method 2 is used. The

  In applying the allergen reducing agent according to the present invention to the target surface, cloths such as rags, non-woven fabrics, porous articles such as sponges and papers, articles that can hold liquids such as brushes, etc. can be used. It can also be applied by hand, using tools such as scrapers and rollers. In particular, it is suitable in terms of the amount of liquid that can be held by the nonwoven fabric or sponge and workability, and the form is preferably a sheet shape or a roller shape.

<Test example>
Seal the space (volume 17m ² , temperature 23 ° C) with a floor area of 7.4m ² and a height of 2.3m, and give a 10-second impact to the cotton quilt used for 2 years in an actual home using a futon taki. Dust was generated in the space, and dust was danced.

After 3 hours, the floor surface was cleaned with a vacuum cleaner (Hitachi, Ltd., CV-CD4, suction work rate 530 W) so that the surface became 20 seconds / m ² . Immediately after that, the sheet-like structure A impregnated with the allergen reducing agent shown in Table 1 so as to have an impregnation rate of 250% (mass ratio) into the nonwoven fabric obtained by the following nonwoven fabric preparation method was used as a quickle wiper (Kao Corporation). ) And wiped the floor.

  After wiping, leave it again for 3 hours and wipe it off with a commercial cleaning sheet (Kao Corporation, floor quickle dry type) impregnated with T-PBS so that the impregnation rate is 150% (mass ratio) Using B, the entire floor surface was wiped up.

  Contaminated PBS was squeezed out of sheet B, and color development was obtained using the following sandwich ELISA method.

  Compare the color development when the sheet A was impregnated with water instead of the allergen reducing agent in Table 1 and the color development when the composition described in Table 1 was impregnated into the sheet A, and evaluate the allergen reduction effect did.

  The control test and the test for the allergen-reducing agent in Table 1 were sequentially performed, and this was repeated 4 times while changing the order as appropriate. The results of allergen reduction for the 4 times obtained were compared. All of the agents provided an excellent allergen reducing effect.

<Example 1>
Seal the space (volume 17m ² , temperature 23 ° C) with a floor area of 7.4m ² and a height of 2.3m, and give a 10-second impact to the cotton quilt used for 2 years in an actual home using a futon taki. Dust was generated in the space, and dust was danced.

After 3 hours, the sheet-like structure A, impregnated with the allergen reducing agent shown in Table 1 so as to have an impregnation rate of 250% (mass ratio), was obtained by the wiper device (Kao Corporation). , Quickle wiper) and cleaned the floor. Immediately after that, the floor was suction-cleaned using a vacuum cleaner (Hitachi, Ltd., CV-CD4, suction work rate 530 W) so as to be 20 seconds / m ² .

  After sucking and cleaning, leave again for 3 hours, and then wipe off a commercially available cleaning sheet (Kao Corporation, floor quickle dry type) impregnated with T-PBS so that the impregnation rate is 150% (mass ratio) Sheet B was used to wipe the entire floor surface.

  Contaminated PBS was squeezed out of sheet B, and color development was obtained using the following sandwich ELISA method.

  Compared with the color development when impregnated with water instead of the allergen-reducing agent in Table 1 (control test) and the color development when tested with the allergen-reducing agent in Table 1, allergen reduction effect investigated.

  The control test and the test for the allergen-reducing agent in Table 1 were sequentially performed, and this was repeated 4 times while changing the order as appropriate. The results of allergen reduction for the 4 times obtained were compared. All of the agents provided an excellent allergen reducing effect. Moreover, the reduction effect was still higher than the case of the test example performed by the corresponding compounding example in all cases.

<Example 2>
Seal the space (volume 17m ² , temperature 23 ° C) with a floor area of 7.4m ² and a height of 2.3m, and give a 10-second impact to the cotton quilt used for 2 years in an actual home using a futon taki. Dust was generated in the space, and dust was danced.

  After 3 hours, spray 30g of the allergen-reducing agent in Table 1 using a trigger spray (trigger supplied by Kao Co., Ltd., attached to the Allerklin Clean Spray Futon) at an angle of 45 ° below the height of 0.6m from the floor. did. Immediately, four nonwoven fabrics obtained by the following nonwoven fabric preparation method were sequentially used, and the floor surface was cleaned in a state where the nonwoven fabric was attached to a quick wiper (Kao Corporation).

  After 3 hours, use a wiping sheet B that is impregnated with a commercially available cleaning sheet (Kao Corporation, floor quickle dry type) so that the impregnation rate is 150% (mass ratio). Wiped up.

  Contaminated PBS was squeezed out of sheet B, and color development was obtained using the following sandwich ELISA method.

  Compared with the color development when sprayed with water instead of the allergen reducing agent in Table 1 (control test) and the color development when sprayed with the allergen reducing agent in Table 1 and tested, allergen reduction effect investigated.

  The control test and the test for the allergen-reducing agent in Table 1 were sequentially performed, and this was repeated 4 times while changing the order as appropriate. The results of allergen reduction for the 4 times obtained were compared. In all of the agents, the allergen reducing effect much superior to the test examples was obtained.

<Sandwich ELISA method>
1. Monoclonal antibody 15E11 (Seikagaku Corporation) is PBS (phosphate buffer solution: pH 7.4 ± 0.1, KH ₂ PO ₄ , NaCl, Na ₂ HPO ₄ and 7H ₂ O are 0.144 g / L and 9.00 g / L, respectively. , Dissolved in distilled water to 0.795 g / L), diluted to a concentration of 2 μg / ml, dispensed into each well of a microplate (Sumitomo Bakelite ELISA Plate Type), and allowed to stand at room temperature for 2 hours. Put.
2. Wash plate 3 times with PBS.
3. PBS (Dainippon Pharmaceutical Block Ace) containing 1% BSA (SIGMA) is dispensed at 200 μl per well and allowed to stand at room temperature for 1 hour for blocking.
4). Wash three times with T-PBS (PBS containing 0.05% Tween20 (SIGMA)).
5). RDer f II (Seikagaku Co., Ltd.) as a standard is diluted 2 ⁿ times from 0.3 μg / ml to 9 tubes T-PBS, 50 μl each is dispensed to each well, and rDer f II is replaced as a negative control. Prepare a well containing 50 μl of T-PBS. The sample to be measured is appropriately diluted with T-PBS, and then 50 μl is dispensed into each well. Let stand at room temperature for 2 hours.
6). Wash the plate 3 times with T-PBS.
7). Dispense 50 μl of HRP-labeled 13A4 (Seikagaku Corporation) at the optimal concentration into each well and leave at room temperature for 2 hours.
8). Wash the plate 3 times with T-PBS.
9. Color development is performed using a peroxidase coloring kit T (Sumitomo Bakelite). First, add 0.1 mL of the substrate solution to 10 mL of the color former and mix to make the color developer. Dispense 100 μl of this color developing solution into each well and develop color at room temperature. In this method, the stronger the yellow color development, the higher the concentration of allergen in the liquid.

<Nonwoven fabric production method>
An air-through nonwoven fabric with a basis weight of 27 g / m ² using low melting point fibers (2.8 dtex × 51 mm, melting point of sheath component 130 ° C) with a core-sheath structure consisting of polypropylene and a sheath made of polyethylene and a solid crimp shape Was made. The fibers were thermally bonded at a temperature of 140 ° C. The breaking strength of the air-through nonwoven fabric was 1660 cN / 25 mm in the flow direction (MD) and 220 cN / 25 mm in the width direction (CD).

On the other hand, a rayon fiber (1.7 dtex x 40 mm), an acrylic fiber (0.9 dtex x 51 mm), and a core-sheath fiber (1.0 dtex x 38 mm) whose core is made of polypropylene and whose sheath is made of polyethylene, a weight ratio of 50/25/25 A fiber web having a basis weight of 19 g / m ² prepared by a conventional card machine was laminated on the upper and lower sides of the air-through nonwoven fabric. Subsequently, a water needling treatment was performed under low energy conditions, and an air-through nonwoven fabric and a fiber web were entangled to prepare a composite spunlace nonwoven fabric having a basis weight of 65 g / m ² having a surface layer having a high degree of freedom of fibers. Using an ultrasonic embossing machine, the entire surface of the prepared non-woven fabric was embossed with a diamond pattern uneven pattern to obtain the non-woven fabric used in the above examples.

  Compounds A1, A2, and B in the table are obtained by the following synthesis examples. In the table, pH was adjusted using sulfuric acid and aminomethylpropanol as a pH adjuster.

<Synthesis Example 1 (Compound A1)>
80 g of hydroxyethyl cellulose (HEC-QP100MH, manufactured by Union Carbide) having a weight average molecular weight of 1,500,000 and a substitution degree of hydroxyethyl group of 1.8, 640 g of 80% isopropyl alcohol (IPA) aqueous solution and 5.34 g of 48% sodium hydroxide aqueous solution Were mixed to prepare a slurry liquid, which was stirred at room temperature for 30 minutes under a nitrogen atmosphere. In this solution

A polyoxyalkylene compound represented by the formula (12) was added and reacted at 80 ° C. for 8 hours to effect polyoxyalkylene formation. After completion of the reaction, the reaction solution was neutralized with acetic acid, and the reaction product was filtered off. The reaction product was washed twice with 500 g of isopropyl alcohol and dried under reduced pressure at 60 ° C. for one day to obtain 72 g of Compound A1. The degree of substitution of the polyoxyalkylene group was 0.004.

<Synthesis Example 2 (Compound A2)>
According to Synthesis Example 1 and the method described in WO00 / 73351, hydroxyethyl cellulose (made by Hercules Co.) having a weight average molecular weight of 200,000 and a hydroxyethyl group substitution degree of 2.5 is used.

Was added to obtain a compound A2 having a polyoxyalkylene group substitution degree of 0.014.

<Synthesis Example 3 (Compound B)>
20 g of polyvinyl alcohol having an average polymerization degree of 2000, 200 g of dimethyl sulfoxide (DMSO), and 1.81 g of granular NaOH were mixed and stirred at 70 ° C. After the solution became homogeneous, it was cooled. The following formula at room temperature

1.87 g of the compound represented by the formula was added and aged at 80 ° C. for 8 hours. After cooling, 2.59 mL of acetic acid was added to neutralize. The reaction product was added into IPA. The precipitated white solid was filtered, and the obtained solid was washed with IPA (300 mL × 3). After drying under reduced pressure, 19.0 g of Compound B containing the following structural units was obtained.

  The degree of substitution of the substituent containing the polyoxyalkylene group of the obtained compound B was 0.0033.

Claims (5)

Cellulose, starch, and derivatives thereof, wherein at least part of the hydrogen atoms of the hydroxy group or carboxy group of the polymer compound selected from derivatives having a structural unit having a hydroxy group or a carboxy group are represented by the following general formula (1 The allergen reduction method which sprays or apply | coats the water-soluble high molecular compound substituted with the group shown by (4) and the allergen reducing agent containing water to the object surface, and wipes it off with a water absorbing article until it dries.
-R ^1a- (OR ^1b ) _p ^{-AR 1c} (1)
[Wherein, R ^1a is an alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group or an oxo group, R ^1b is an alkylene group having 1 to 6 carbon atoms, and R ^1c is a hydroxy group. An alkyl group having 4 to 30 carbon atoms which may be substituted or a sulfoalkyl group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. A is a group selected from —O—, —OCO—, and —COO—, p is 0 to 50 (average number of added moles), and p (OR ^1b ) may be the same or different. ]   The allergen reduction method according to claim 1, wherein the water-absorbent article is a fiber structure containing cellulosic fibers.   A cleaning method for performing cleaning by suction or sweeping after performing the method according to claim 1.   A cleaning method comprising wiping the target surface with an allergen-reducing sheet obtained by impregnating the flexible sheet with the allergen-reducing agent according to claim 1 and further performing cleaning or sweeping by suction.   An allergen-reducing sheet obtained by impregnating the allergen-reducing agent according to claim 1, which is labeled to be used for performing the cleaning method according to claim 4.