JP2002001326A - Bath water cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath water cleaning device capable of efficiently performing a cleaning power of a detergent even when bath water is used for washing. SOLUTION: A detergent composition 4 containing a metallic ion chelating agent and/or a surfactant is arranged at any place of a water path for taking in bathtub water into a washing tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a bath water purifying apparatus and a washing method.

[0002]

2. Description of the Related Art Laundry detergents include alkali agents such as sodium carbonate and sodium silicate, calcium scavengers (sequestering agents) such as zeolite and sodium tripolyphosphate, and anionic surfactants. Surfactants, mainly surfactants and nonionic surfactants,
Manufactured from fillers such as sodium sulfate and other ingredients. By keeping the washing liquid alkaline with an alkaline agent, the dispersing power of the dirt is increased and the re-contamination of the released dirt is prevented, while the sequestering agent removes the detergent to the surfactant by metal ions such as calcium ions in the water. To reduce the adverse effects of dirt and remove dirt attached to clothing.

[0003] By the way, fatty acids, which are the majority of sebum stains derived from the human body attached to laundry, form scum with metal ions such as calcium ions during washing, and tend to lower the solubility and dispersibility of the surfactant. And hinders the dispersion of dirt in water. The higher the alkalinity (pH), the higher the scumming speed. Therefore, as in the above-mentioned conventional technology, the softening of the washing water only with the above-mentioned washing detergent maximizes the washing power of the detergent. I couldn't do it.

[0004] As described above, a detergent for washing is affected by its detergency by metal ions contained in washing water. For this reason, the cleaning composition is disclosed in
As in the detergent composition described in Japanese Patent No. 251685, there has been proposed a detergent composition containing particles capable of delaying the appearance of alkali, which is expressed more slowly than the decrease in the hardness of the washing liquid and the dissolution of the surfactant. . In a washing method, tap water used as washing water is purified to reduce metal ions contained therein. As a prior art relating to such a washing method, for example, Japanese Unexamined Patent Application Publication No. 11-3
The technique described in Japanese Patent No. 28485 is known. This technology attaches a cartridge filled with cation exchange resin to the water supply path of the washing machine, removes metal ions such as calcium and magnesium contained in tap water, and softens it.
It is designed to be taken into the washing tub.

On the other hand, as a conventional technique for reusing the remaining hot water of a bath (hereinafter also simply referred to as bath water) for washing water, a technique described in, for example, Japanese Patent Application Laid-Open No. 8-266785 is known. According to this technique, a filter device having an activated carbon filter is attached to a distal end portion of a water suction hose whose base end communicates with a water suction pump of a washing machine, and the filter device is immersed in bath water in a bathtub to operate the water suction pump. Bath water is suctioned, and the purified water is supplied to a washing tub of a washing machine by purifying by adsorbing dirt with an activated carbon filter. However, in this prior art, since the dirt in the bath water is only purified by adsorbing with an activated carbon filter, even after purification,
The cleaning power of the detergent used was not sufficient. In addition, when bath water is used for washing water, since fatty acids derived from the human body are already contained before the laundry is put in, it is desired that the washing power of the detergent can be effectively exerted even in such a case. Was.

Accordingly, it is an object of the present invention to provide a bath water purifying apparatus and a washing method capable of effectively exerting the detergency of a detergent even when bath water is used as washing water. Another object of the present invention is to obtain a sustained purifying action.

[0007]

According to the present invention, a purifying composition containing a sequestering agent and / or a surfactant is disposed at any point in a water passage for taking bath water into a washing tub. The above object has been achieved by providing a bath water purification device. Further, the present invention provides a washing method in which a sequestering agent and / or a surfactant is applied to bath water, the applied water is taken into a washing tub, a detergent is added, and laundry is washed. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. Figure 1
1 shows a first embodiment of a bath water purification device (hereinafter, also simply referred to as a purification device) of the present invention. In the figure, reference numeral 1 indicates a purification device.

As shown in FIG. 1, a purifying apparatus 1 comprises a purifying composition 4 containing a sequestering agent and / or a surfactant.
Is located in the water channel for taking bath water into the washing tub.
More specifically, in the purification device 1, the water purification passage 4 in the cylindrical case 2 is filled with the purification agent composition 4. The purifying agent composition 4 is filled in a bag in a cylindrical cartridge 5 made of a water-permeable bag-shaped nonwoven fabric. The case 2 includes a main body 20 having a space for loading the cartridge 5, and a cap 21 screwed to the main body 20.
A hose mounting portion 20a is provided on an upper portion of the main body 20, and the inside of the main body 20 is partitioned by an inner wall portion 20c having a mesh-like water passage hole 20b. A similar mesh-shaped water passage hole 21 is also provided on the bottom surface 21a of the cap 21.
b is provided. In this embodiment, a mesh-shaped filter 6 and a sponge filter 7 which are thinner than the water holes 20b and 21b are provided below the cartridge 5, and these are used for bathing hair and the like. Impurities contained in water can be removed in advance.

The sequestering agent used in the bath water purifying apparatus of the present invention removes polyvalent metal ions such as calcium ions, magnesium ions and iron ions. As the sequestering agent, water-insoluble or water-soluble sequestering agents can be used alone or in combination. In any case, when the predetermined ion exchange capacity cannot be obtained, the ion exchange capacity is replaced or refilled. The sequestering agent used in the present invention is an aluminosilicate, a carboxylate polymer, a chelating agent, or an ion exchanger.

As the aluminosilicate, those having a predetermined ion exchange capacity represented by the following formula 1 are used, and among them, crystalline aluminosilicate is particularly preferably used from the viewpoint of ion exchange capacity.

X (M ₂ O) · Al ₂ O ₃ · y (SiO ₂ ) · z (H ₂ O) (Formula 1) (In Formula 1, M is an alkali metal such as Na or Ca, x,
y and z represent the number of moles of each sentence, and generally, 0.7 ≦
x ≦ 1.5, 0.8 ≦ y ≦ 6, and z are arbitrary constants. )

[0013] The predetermined ion exchange amount of the alumina silicate is 1 in terms of the capability of treating metal ions in water.
It is preferably at least 00 CaCO ₃ mg / g.
More preferably, it is 50 CaCO ₃ mg / g or more.

The above-mentioned aluminosilicates can be used alone or in combination of crystalline ones or amorphous ones. As the crystalline material, those represented by the following general formula are preferably used.

Na ₂ O.Al ₂ O ₃ .y SiO ₂ .zH ₂ O (Formula 2) (In Formula 2, y is 1.8 to 3.0 and z is 1 to 6.)

The crystalline aluminosilicates (zeolites) include A-type, X-type and P-type zeolites.
Synthetic zeolites having an average primary particle diameter of 0.1 to 10 μm are preferably used. The zeolite can be used as a powder or as a zeolite aggregated dry particle obtained by drying a zeolite slurry containing the zeolite powder.

The above crystalline aluminosilicate can be produced by a conventional method.
It can be produced using the methods described in JP-A-81-81 and JP-A-51-12805.

As the amorphous aluminosilicate, those represented by the same general formula (formula (2)) as the crystalline aluminosilicate can be used. This amorphous aluminosilicate can be produced by a conventional method. For example, the molar ratio of SiO ₂ to M ₂ O (M means an alkali metal) is SiO ₂ / M ₂ O = 1.0 to 4.0, and the molar ratio of H ₂ O to M ₂ O is H ₂ O / M ₂ O = 12-20
In an aqueous solution of an alkali metal silicate that is 0, SiO ₂ and M ₂
The molar ratio of O is _{SiO 2 / M 2 O = 1.0~2.0} , the molar ratio of between H ₂ O and M ₂ O is _{H 2 O / M 2 O =} 6.0~5
The low alkali aqueous solution of an alkali metal salt of an amino acid which is 00 is usually added at a temperature of 15 to 60 ° C., preferably 30 to 50 ° C. while forcibly stirring.

Next, the slurry of the purified white precipitate is heat-treated at a temperature of usually 70 to 100 ° C., preferably 90 to 100 ° C., usually for 10 minutes to 10 hours, preferably for 5 hours, and then filtered and washed. By drying, a desired amorphous aluminosilicate can be produced. At this time, a method of adding each solution when mixing both aqueous solutions may be a method of adding an aqueous solution of an alkali metal silicate to an aqueous solution of a low alkali alkali amine acid metal salt.

The aluminosilicate is kneaded with its agglomerated particles and a granulation aid such as silica or a viscous mineral, and granulated to a predetermined particle size (for example, an average particle size of 0.1 to 5 mm). Aluminosilicate which has been calcined at a temperature at which the ion exchange capacity of the aluminosilicate does not decrease (for example, 700 ° C. or lower) can also be used.

The above carboxylate polymer has a concentration of 100 CaCO ₃ mg /
g or more, preferably a carboxylate polymer having a Ca ion capturing ability of 150 CaCO ₃ mg / g or more is used. Specific examples of such a carboxylate polymer include a polymer or a copolymer having a repeating unit represented by the following general formula.

[0022]

Embedded image

Wherein X ₁ is methyl, H or COOX ₃ ;
X ₂ is methyl, H or OH, X ₃ is H, an alkali metal,
It means an alkaline earth metal, NH ₄ or ethanolamine, respectively.

The alkali metals include Na, K, L
i, and as the alkaline earth metal, Ca, Mg
And the like.

The polymer or copolymer used in the present invention includes acrylic acid, (anhydride) maleic acid, methacrylic acid,
It is synthesized by a polymerization reaction of α-hydroxyacrylic acid, crotonic acid, isocrotonic acid, a salt thereof, or the like, a copolymerization reaction of each monomer, or a copolymerization reaction with another polymerizable monomer. Other copolymerizable monomers used for the copolymerization are not particularly limited, for example, aconitic acid, itaconic acid, citraconic acid, fumaric acid, vinylphosphonic acid, sulfonated maleic acid, diisobutylene, styrene, Examples include methyl vinyl ether, ethylene, propylene, isobutylene, pentene, butadiene, isoprene, vinyl acetate (including vinyl alcohol when hydrolyzed after copolymerization), and acrylate.

Also, a polyacetal carboxylic acid polymer such as polyglyoxylic acid described in JP-A-54-52196 can be used.

Examples of the chelating agent include aminotri (methylene phosphonic acid), 1-hydroxyethylidene-1,
1-diphosphonic acid), ethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylenephosphonic acid) and salts thereof, salts of 2-phosphonocarboxylic acid, salts of amino acids such as aspartic acid and glutamic acid, nitrilotriacetic acid salts And organic acid salts such as aminopolyacetates such as ethylenediaminetetraacetate, and pillows and triphosphates.

As the above-mentioned ion exchanger, known ones can be used without any particular limitation. However, polystyrene, polyvinyl alcohol, and the like can be used from the viewpoint of the ability to treat metal ions in water.
An ion exchange resin or ion exchange fiber in which a sulfonic acid group, a phosphonic acid group, an aminocarboxylic acid group, a carboxylic acid group, or the like is introduced as a cation exchange group into a group such as polyacryl, polyamide, polyphenol, polyethylene, or cellulose is preferable. Ion exchanger, the form usually used as ion exchange resin or ion exchange fiber, for example, granular,
Those having a fibrous form or the like can be used without any particular limitation.

As the surfactant used in the present invention, those generally used in detergents can be used without any particular limitation. Specifically, for example, the following nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants can be used.

Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycol fatty acid alkyl ester, polyoxyethylene polyoxypropylene alkyl ether, Examples include polyoxyethylene castor oil, polyoxyethylene alkylamine, glycerin fatty acid ester, higher fatty acid alkanolamide, alkylglucoside, alkylglucoseamide, alkylamine oxide and the like. Of these,
Particularly, as the nonionic surfactant, a linear or branched ethylene oxide additive of a primary or secondary alcohol having 10 to 18 carbon atoms, preferably a polyoxyethylene alkyl ether having an average addition mole number of 5 to 15 is preferable. Used
A linear or branched primary or secondary ethylene oxide adduct having 12 to 14 carbon atoms, having an average mole number of 6 to 1
It is preferred to use a polyoxyethylene alkyl ether of 0.

Examples of the anionic surfactant include alkyl benzene sulfonate, alkyl or alkenyl ether sulfate, alkyl or alkenyl sulfate, α-olefin sulfonate, α-sulfofatty acid salt or ester salt, and alkyl or alkenyl ether. Carboxylates, amino acid type surfactants, N-acyl amino acid type surfactants and the like, among which, in particular, alkylbenzene sulfonate, alkyl or alkenyl ether sulfate, from the viewpoint of improving the washability of clothing, Alkyl or alkenyl sulfates are preferably used.

The cationic surfactant is preferably a quaternary ammonium salt such as an alkyltrimethylamine salt, and the amphoteric surfactant is a carboxy type or sulfobetaine type amphoteric surfactant. No.

In the present invention, when a dispersible (water-insoluble) or water-soluble sequestering agent and / or a water-soluble surfactant is used, the effect of water permeability and sequestering agent (metal ion From the viewpoint of the effect of the surfactant), each of the sequestering agent and / or the surfactant is preferably added to the purified bath water at 1 to 400 mg /
It is preferable to select the agent so that the amount of the agent is included in the weight, more preferably 10 to 200 mg / kg.

The purifying composition of the present invention may be in the form of granules, powders,
It can be used in the form of a film, fiber, wax, gel, capsule or the like. For example, when an insoluble sequestering agent is used as the sequestering agent, the average particle size is 2 to 50 mesh (JIS L0208, hereinafter the same) from the viewpoint of water permeability and metal ion removability. Preferably, it is more preferably 2 to 500 mesh.

The sequestering agent and the surfactant contained in the purifying agent composition may be obtained by mixing and granulating them, by laminating them, or by using one as a carrier and carrying the other on it. By doing so, the surfactant can be slowly released into the washing water while removing the metal ions. In particular, it is preferable to use a tablet as the purifying agent composition since sustained release properties can be maintained. In addition, the purifying agent composition used in the bath water purifying apparatus of the present invention includes an enzyme, an antioxidant, a bleaching agent, a fluorescent paint, a bluing agent,
A softener, a bactericide, a deodorant, a fragrance, and the like can be included without particular limitation according to the purpose.

In the bath water purifying apparatus of the present invention, it is preferable to use a sequestering agent and a surfactant in combination with the purifying agent composition as in the above embodiment, but either one is contained. You can also.

In addition to the purifying agent composition, as in the purifying apparatus 1, a filtering material such as a sponge filter or a mesh filter, or an adsorbent may be appropriately used. As the filtering material, those that remove impurities, for example, inorganic floating substances such as mud and iron oxide, organic floating substances such as hair and sebum dirt, and organic compounds that are odors and toxic components can be used. Further, from the viewpoint of the sustainability of the purifying agent composition, it is preferable that the purifying agent composition is bagged in the nonwoven fabric, and it is more preferable that the purifying agent composition in the form of tablets is bagged in the nonwoven fabric.

According to the bath water purification apparatus of this embodiment, metal ions such as calcium and magnesium can be removed from the bath water before the bath water is injected into the washing tub, and the interface can be removed in the absence of an alkaline agent. As we can release the active agent slowly,
The softening of water and the suppression of scum generation can be combined to effectively exert the detergency of the detergent. In particular, even when bath water containing fatty acids derived from the human body is used as washing water before loading laundry, the surfactant can be gradually released in the absence of an alkaline agent, so that the generation of scum is suppressed and the surface activity is reduced. The agent can be dispersed effectively.

Next, a washing method of the present invention will be described with reference to FIG. 2 based on an embodiment using the above-described cleaning device 1 as a preferred embodiment.

The washing method of the present invention is a method of applying a sequestering agent and / or a surfactant to bath water, taking the applied water into a washing tub, adding a detergent, and washing the laundry.

FIG. 2 shows a use form of the purifying device 1. The purifying device 1 includes a water absorption pump (not shown).
, And a base end 90 is attached to a distal end 91 of a hose 9 connected to the suction pump.

Then, the purifying device 1 is submerged in bath water 11 in the bathtub 10, and the bath water 11 is sucked by the water suction pump.
The water is supplied into the washing tub (not shown) of the washing machine 8 through the cleaning device 1.

When the bath water 11 passes through the water passage 3, the specific metal ions and the like in the bath water 11 are removed, while the surfactant is gradually released into the bath water. And
Put the dirty laundry in the washing tub and immerse it in the washing water,
Further, washing is performed by adding a detergent. When the effect of the cleaning agent composition 4 cannot be obtained, the cartridge 5 is removed from the case 2 and filled with another cleaning agent composition,
By reloading the cartridge, it can be used repeatedly.

As described above, according to the washing method of the present embodiment, a metal ion sequestering agent and / or a surfactant is applied to bath water to remove specific metal ions or the like which adversely affect the detergency of the detergent. On the other hand, the surfactant is slowly released into the bath water while being supplied to the washing tub, and then the washing is performed.Before putting the laundry in the bath water already containing fatty acids derived from the human body, In addition, the softening of the detergent and the suppression of the generation of scum can be effectively exhibited in combination with the water softening. Therefore, it is possible to cleanly remove dirt from the laundry.

Next, a second embodiment of the bath water purification apparatus of the present invention will be described with reference to FIG. In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted. Therefore, the description of the purification device 1 of the above-described embodiment is appropriately applied to the parts that are not particularly described.

The purifying apparatus 1 'of this embodiment is used by being attached to an open end (not shown) of an external water supply pipe of a washing machine. As shown in the figure, the purifying apparatus 1 'has a purifying agent composition 4 filled in a water passage 3' in a cylindrical case 2 '. The purifying agent composition 4 is filled in a bag in a cylindrical cartridge 5 made of a water-permeable bag-shaped nonwoven fabric. The case 2 ′ includes a main body 20 ′ having a space for loading the cartridge 5, and a cap 21 ′ screwed to the main body 20 ′. At the bottom of the body 20 '
A mounting portion 20a 'is provided to be inserted into the open end of the external water supply line of the washing machine. The inside of the main body 20 'is partitioned by an inner wall 20c' having a mesh-shaped water passage hole 20b '. Above the cap 21 ', a hose mounting portion 21a' is provided. Note that, in the present embodiment, a mesh-shaped filter 6 ′ that is thinner than the water holes is disposed above the cartridge 5.
Thereby, impurities contained in the bath water can be removed in advance.

Then, the bath water in the bath tub is sucked by a water suction pump to remove specific metal ions and the like through the purifying device 1 ', while the surfactant is gradually released. (Not shown). After that, a predetermined amount of detergent is put in, and the dirty laundry is put in a washing tub and immersed in washing water for washing. If the effect of the cleaning composition 4 is no longer obtained, case 2 ′
The cartridge 5 can be used repeatedly by removing the cartridge 5, filling the cartridge 5 with another cleaning agent composition, and reloading the cartridge 5.

As described above, according to the bath water purifying apparatus 1 'of the present embodiment, it is possible to remove metal ions and the like which adversely affect the detergency of the detergent from the bath water before supplying them to the washing tub. Since the surfactant can be slowly released into the bath water in the absence of the alkali agent, the softening of the detergent and the suppression of the generation of scum can be effectively combined with the detergency of the detergent. Therefore, it is possible to cleanly remove dirt from the laundry.

The present invention relates to a bath water purifying apparatus which is used by being floated or settled in a bathtub, comprising the sequestering agent and / or the surfactant used in the bath water purifying apparatus of the present invention. It includes a bath water purification device in which the container is filled with the cleaning agent composition. In addition, by putting into a bag-shaped nonwoven fabric or by making a tablet, the sustained-release property of the purifying composition is improved, especially when the tablet is directly put into a bath and dispersed or dissolved in water to be used, It can be used for a long time.

FIG. 4 shows a third embodiment of the bath water purification apparatus of the present invention. In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. Therefore, the description of the purification device 1 of the first embodiment is appropriately applied to the parts that are not particularly described.

The purifying apparatus 1 "according to the third embodiment is used by floating or immersing it in bath water in a bathtub. As shown in FIG. 4, the purifying apparatus 1" is a cylindrical case 2 ".
The inside is filled with the purifying agent composition 4. Purifying agent composition 4
Is filled in a bag into a cylindrical cartridge 5 made of a water-permeable bag-shaped nonwoven fabric. The case 2 ″ includes a main body 20 ″ having a space for loading the cartridge 5 and a main body 2 ″.
And a cap 21 "screwed to 0". A weight 20d "for floating or immersing the purifying device 1" in bath water is disposed below the main body 20 ". For the weight 20d", for example, a metal piece such as an iron piece may be used. it can. A large number of mesh-like water holes 20b "are provided on the side surface of the main body 20". A number of similar water holes 21b "are also provided on the top surface of the cap 21". In the bath water purification apparatus of the present invention, the hole diameters of the water holes provided on these side and top surfaces are in terms of facilitating the nucleic acid of the bath water and maintaining the form of the nonwoven fabric filled with the purifying agent. It is preferably from 0.1 to 20 mm, more preferably from 0.5 to 10 mm. In addition, the opening ratio of the water holes provided in the side surface portion and the top surface portion is preferably 1 to 90% of the surface area of the side surface portion and the top surface portion in terms of securing the diffusion area of bath water, More preferably, it is 5 to 50%.

The purifying device 1 ″ is used by being floated or immersed in bath water of a bath tub for a predetermined time. When the purifying device 1 ″ is floated or immersed in bath water of a bath tub, the water hole 20 is removed.
b ", 21b" penetrates into the cartridge 5 in the case, and while the purifying agent composition removes specific metal ions and the like, the surfactant is gradually released to purify the bath water. Thereafter, the purified bath water is supplied to a bathtub of a washing machine, a predetermined amount of detergent is put in, and dirty laundry is put in the washing tub and immersed in washing water to perform washing. When the effect of the cleaning agent composition 4 can no longer be obtained, the cartridge 5 can be removed from the case 2 ″, filled with another cleaning agent composition, and reloaded with the cartridge 5 so that the cartridge 5 can be used repeatedly. it can.

As described above, according to the bath water purifying apparatus 1 "of the present embodiment, metal ions and the like which adversely affect the cleaning power of the detergent can be obtained simply by floating or immersing the apparatus 1" in the bath water of the bathtub. It can be removed from the bath water in the bathtub. Then, by supplying this to the washing tub, the surfactant can be gradually released into the bath water in the absence of an alkali agent, and the softening and suppression of scum generation are combined, effectively improving the cleaning power of the detergent. Can be demonstrated. Therefore, it is possible to cleanly remove dirt from the laundry.

The present invention is not limited to the above embodiment.
For example, as described above, the bath water purification device of the present invention is preferably used by being attached to a water intake passage communicating with the water absorption pump in a washing machine having a water absorption pump. If a filter device is already installed at the end of the water supply hose leading to the filter for the purpose of removing dirt, hair, etc., the bath water purification device of the present invention is attached to the end of the filter device and used. Can also. Further, it can be used by being interposed in a water suction passage of a pump device for pumping bath water independent of a washing machine. In the present invention, as in the above embodiment,
It is preferable to put the laundry after supplying the bath water to the washing tub, but since the bath water is supplied into the washing tub in a state containing the surfactant, the laundry is put into the washing tub in advance. In this case, a cleaning effect can be obtained.

[0055]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. [Example 1] A purifying agent composition prepared as described below was charged into a bag into a cylindrical cartridge made of a water-permeable bag-shaped nonwoven fabric, and this was purified with a filling space having an inner diameter of 6 cm and a length of 8 cm. It was loaded into the device. Then, the purifying device was attached to the end of a hose connected to a suction pump, and bath water adjusted as described below was passed at a rate of 8 liters / minute. And immediately after water passing and a predetermined amount (1000 liters)
The hardness (CaCO ₃ , mg / l) of the bath water after passing the water and the concentration of the surfactant were measured, and the following detergency test was performed for each bath water. Table 1 shows the results.

<Preparation of Purifying Agent Composition> The following sequestering agent and surfactant were uniformly heated and mixed at about 85 ° C. to prepare a purifying agent composition, which was filled in a mold to form a purifying agent composition.
A tablet consisting of a cylindrical molded product having a diameter of 5 cm at 5 t / cm ² was produced. Sequestering agent: Zeolite type 4A (average particle size 2μ)
m, ion exchange capacity 240 CaCO ₃ mg / g) 20
0 g Surfactant: nonionic surfactant [compounding ratio: polyoxyethylene monostearyl ester (number of moles of EO added =
5) / Polyoxyethylene monostearyl ester (E
O added mole number = 120) = 1/2] 30 g

<Adjustment of bath water> After boiling 200 liters of tap water to 40 ° C in a bathtub with a circulating bath water tank, four family members took a bath between 37 and 40 ° C, and the hardness was 7
A mixture containing 0 ± 2 CaCO ₃ , mg / l and containing 2 to 4 mg / 50 liters of skin lipids was adjusted to 25 ° C. by natural cooling, and a mixture adjusted to 25 ° C. by natural cooling was used. The amount of sebum was determined by dissolving and extracting the bath water, measuring the extract three times by gas chromatography according to a standard method, and using the average of the measured values.

<Measurement of Hardness> Five measurements were made with an electric conductivity meter, and the hardness was calculated from the average of the measured values.

<Surfactant Concentration> Five measurements were carried out by liquid chromatography according to a conventional method, and calculated from the average of the measured values.

<Detergency test> Preparation of artificially stained cloth: An artificially stained cloth having the following composition was adhered to the cloth to prepare an artificially stained cloth.
The artificial contaminant was attached to the cloth by printing the artificial contaminant on the cloth using a gravure roll coater. The step of making the artificially contaminated cloth by adhering the artificially contaminated liquid to the cloth includes a gravure roll cell capacity of 58 cm ³ / cm ² and a coating speed of 1.
The drying was performed at 0 m / min, a drying temperature of 100 ° C., and a drying time of 1 minute. The cloth used was a cotton cloth 2003 (manufactured by Tanito Shoten). And this artificial cloth (10cm × 10cm) 5
Put the pieces in 1 liter of bath water,
Washed at 00 rpm. The washing conditions are as follows.

Composition of artificial contaminated liquid:-0.44% by weight of lauric acid-3.09% by weight of myristic acid-2.31% by weight of pentadecanoic acid-6.18% by weight of palmitic acid-0.44% by weight of heptadecanoic acid- 1.57% by weight of stearic acid ・ 7.75% by weight of oleic acid ・ 13.06% by weight of trioleic acid ・ 2.18% by weight of n-hexadecyl palmyrate ・ 6.53% by weight of squalene ・ Egg white lecithin liquid crystal 1.94 Weight% ・ Kanuma red clay 8.11% by weight ・ Carbon black 0.01% by weight ・ Tap water balance

Cleaning conditions: ・ Washing time: 10 minutes ・ Washing agent (trade name: “Attack” manufactured by Kao Corporation) ・ Washing agent concentration: 0.067% ・ Water temperature: 25 ° C. Rinsing conditions: ・ Tap water (10 ° C.) Rinse for 5 minutes

Calculation of detergency: The detergency is determined by measuring the reflectance at 550 nm of the original cloth before and after the cleaning at 550 nm using a self-recording colorimeter (manufactured by Shimadzu Corporation). The average value of the cleaning rates of the five cloths was determined as the cleaning power. Cleaning rate (%) = (Reflectance after cleaning−Reflectance before cleaning) /
(Reflectance of original cloth-Reflectance before washing) × 100

Example 2 The purifying agent composition prepared as described below was filled in a bag into a cylindrical cartridge made of a water-permeable bag-shaped nonwoven fabric in the form of particles, and washed in the same manner as in Example 1. The test was performed. Table 1 shows the results. <Preparation of Purifier Composition> The following sequestering agent and granulation aid (colloidal silica) were mixed with water to form a slurry, dried at 150 ° C., fired at 600 ° C. in the atmosphere, and dried.
The resultant was pulverized to a mesh of 0 to 80 to prepare a purifying composition. Sequestering agent: zeolite type 4A (composition M ₂ O · 2
SiO ₂ · 2H ₂ O, M; Na, K, Na / K = 0.0
3, average particle diameter 4μm, ion exchange capacity 230CaCO
₃ mg / g) 200 g Granulating agent: Colloidal silica (Nippon Aerosil Co., Ltd.) 1
5g

Example 3 The same procedure was performed as in Example 1 except that the following purifying agent composition was used. Table 1 shows the results.
Shown in <Preparation of Purifying Agent Composition> The following surfactants were uniformly heated and mixed at about 85 ° C. to prepare a purifying agent composition, which was filled in a molding die, and was a cylinder having a diameter of 0.5 cm / cm ² and a diameter of 5 cm. A tablet consisting of a shaped article was produced. Surfactant: Nonionic surfactant [Blending ratio: polyoxyethylene lauryl ether (EO addition mole number = 8) / polyoxyethylene dilauryl ester (average addition mole number = 150) = 8/2] 120 g

[Comparative Example 1] The same procedure as in Example 1 was carried out except that the purifier was not used. Table 1 shows the results.

[0067]

[Table 1]

As shown in Table 1, it was confirmed that the cleaning rate was higher when the purifying devices of Examples 1 to 3 (products of the present invention) were used than in Comparative Examples. Further, it was confirmed that this effect was continuously obtained even when a large amount of water was continuously used.

Example 4 A purifying agent composition prepared as described below was filled in a bag containing a water-permeable bag-shaped non-woven cylindrical cartridge, and was filled with an inner diameter of 6 cm and a length of 9 c.
The purification device (FIG. 4) having a m filling space was charged. In addition, on the top and side portions of the purifier, 60 equally provided 5 mm water holes for bath water to pass therethrough, and a 100 g iron piece is provided on the bottom of the purifier so that the purifier does not float. Was arranged. Then, the purifying device was immersed in the bottom of the bathtub and left in 200 liters of bath water adjusted in the same manner as in Example 1 for about 10 hours. The same operation was repeated five times using 200 liters of new bath water adjusted in the same manner as in Example 1 for each operation, and the bath water after the first operation and the bath after the fifth operation were performed. Water hardness and detergency tests were performed in the same manner as in Example 1. Table 2 shows the results.

<Preparation of Purifier Composition> The following sequestering agent and granulating aid (colloidal silica) were mixed with water to form a slurry, dried at 150 ° C., and dried in air at 550 ° C.
And crushed to 10 to 40 mesh to prepare a purifying composition. Sequestering agent: zeolite type 4A (composition M ₂ O · 2
SiO ₂ · 2H ₂ O, M; Na, K, Na / K = 0.0
3. Average particle size 2μm, ion exchange capacity 235CaCO
₃ mg / g) 180 g granulating: colloidal silica (manufactured by Nippon Aerosil Co., Ltd.) 1
0g

[Comparative Example 2] The same operation as in Example 4 was carried out except that the purifier was not used. Table 2 shows the results.

[0072]

[Table 2]

As shown in Table 2, it was confirmed that the cleaning rate was higher when the purifying apparatus of Example 4 (the product of the present invention) was used than in the comparative example. Furthermore, it was confirmed that this effect could be obtained continuously even when used repeatedly.

[0074]

According to the present invention, the detergency of the detergent can be effectively exerted, and the stains on the laundry can be removed neatly.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a first embodiment of a bath water purification apparatus of the present invention.

FIG. 2 is a schematic perspective view showing a usage form of the bath water purification device of the embodiment.

FIG. 3 is a schematic sectional view of a main part of a bath water purification device according to a second embodiment of the present invention.

FIG. 4 is a schematic sectional view of a main part showing a third embodiment of the bath water purification device of the present invention.

[Explanation of symbols]

 1, 1 ', 1 "bath water purifier 3, 3' water passage 4 purifier composition 8 washing machine

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B01J 20/26 B01J 20/26 B (72) Inventor Isao Yamada 1334 Minato, Wakayama-shi, Wakayama Pref. In-house F-term (reference) 3B155 AA17 AA19 BB08 FD06 FE13 GB00 MA01 MA02 4D024 AA06 AB04 AB15 AB16 BA05 BA07 BA17 BA18 BB01 BB02 CA04 DB03 DB29 4D025 AA08 AB19 BA08 BA17 BA22 BA24 DA02 DA10 4G066 AA09ABA ACB BA16 BA28 BA33 CA01 CA45 CA46 DA08 FA01 FA22 FA26

Claims (5)

[Claims] 1. A bath water purifying apparatus wherein a purifying agent composition containing a sequestering agent and / or a surfactant is disposed at any point in a water passage for taking bath water into a washing tub. 2. The bath water purifier according to claim 1, wherein the sequestering agent is an aluminosilicate, a carboxylate polymer, a chelating agent, or an ion exchanger. 3. The method according to claim 1, wherein the cleaning composition is a tablet.
Or the bath water purification device according to 2. 4. The bath water purification apparatus according to claim 1, wherein the cleaning agent composition is packaged in a non-woven fabric. 5. A washing method in which a sequestering agent and / or a surfactant is applied to bath water, the applied water is taken into a washing tub, a detergent is added, and laundry is washed.