JP4675223B2 - Polished cleaning articles - Google Patents

Description

  The present invention relates to a polished cleaning article used for polishing a hard surface such as a floor surface.

  Conventionally, water-based floor polishes are placed in containers such as squeeze bottles and trigger sprays when not in use, and are sprayed in appropriate amounts from the container to the floor surface when used, and then wiped and spread by hand with a rag or sheet. (See Patent Document 1). Alternatively, it is spread by a mop or a mop-shaped cleaning tool having a cleaning sheet attached to the head (see Patent Document 2).

  However, such a spreading method of the polish is likely to cause uneven finish of the dry film, and technical familiarity is required for the user to apply the coating without unevenness. Therefore, anyone can easily spread the sheet by impregnating the polishing agent into the sheet and attaching the sheet to the head part of the cleaning tool having the head part and the handle part connected to the head part. A proposal has been made (see Patent Document 3).

  When a sheet is impregnated with a polishing agent and spreads over a wide area, the sheet needs to be impregnated with a polishing agent at a high impregnation rate of 300 to 3000% by weight with respect to the dry weight of the sheet. . However, when the sheet is impregnated with the polish at such a high impregnation rate, the amount of the polish released at the initial stage of the spreading operation may far exceed the required amount. In such a case, if the same part is applied many times or if it is applied with force, foaming occurs due to the surfactant contained in the polishing agent, and the foam remains. If a dry film is formed, the finish will be poor.

Japanese Patent No. 2976158 Japanese Patent No. 2915840 JP 2004-105710 A

  Accordingly, an object of the present invention is to provide a polished cleaning article that can eliminate the various disadvantages of the prior art described above.

  The present invention relates to a polishing cleaning article obtained by impregnating a liquid holding sheet with a polishing agent composition at a high impregnation rate of 300 to 3000% by weight, wherein the composition is (a) a water-insoluble polymer, and (b) a glycol type It contains at least one ester compound selected from the group consisting of a solvent, (c) a surfactant, and (d) a carboxylic acid ester and a phosphate ester as essential raw materials, and is a solid of the water-insoluble polymer of (a) The object is achieved by providing a polished cleaning article in which the weight ratio of the minute and the ester compound of (d) is 40: 1 to 6: 1.

  According to the polishing cleaning article of the present invention, when bubbles are generated by performing the spreading operation of the polishing composition in a state where the polishing composition is released in a larger amount than necessary, the portion and its surroundings. The foam can be prevented from remaining by removing the foam by further performing a spreading operation at the location, and the spreading and leveling properties of the polish composition are improved.

  The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 shows an embodiment of the polished cleaning article 1 of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. The cleaning article 1 shown in FIG. 1 is suitably used for polishing a hard surface such as a floor surface. The cleaning article 1 is configured by impregnating a liquid holding sheet 2 with a polish composition. The cleaning article 1 is accommodated in a liquid-impermeable flat container 3 that hermetically accommodates the cleaning article 1.

  The container 3 is composed of a liquid-impermeable film. The container 3 has a flat bag shape that is rectangular in plan view, and has a first surface 31a and a second surface 31b. The container 3 is formed by joining four sides of two rectangular liquid-impermeable films. The container 3 has two rows of apertures 31 formed of long holes extending in the longitudinal direction on a part thereof, specifically, the first surface 31a. The opening 31 is formed over the entire region where the first surface 31 a faces the liquid holding sheet 2. The liquid-impermeable film is not particularly limited as long as it is somewhat flexible and liquid-impermeable. For example, a thermoplastic resin film or a laminate of a metal thin film such as aluminum on the film can be used as the liquid-impermeable film.

  As shown in FIG. 1, the container 3 is a polish composition in which the opening 31 is sealed by a seal 32 as a sealing means before use, and the liquid holding sheet 2 is impregnated. Is prevented from leaking out of the container 3 before use. In use, the seal 32 is peeled off to release the sealed state.

The liquid holding sheet 2 is made of a fiber material and is accommodated in a bag-like container 3. The liquid holding sheet 2 has a rectangular shape slightly smaller than the container 3. The liquid holding sheet 2 is impregnated with a polishing agent composition at a high impregnation rate. The opening 31 described above has a size and / or an opening ratio that can transfer an appropriate amount of the polish composition and the like from the liquid holding sheet 2 to the entire liquid sustained-release sheet to be described later through the opening 31. is doing. Specifically, the area of each aperture 31, from the viewpoint of not to prevent the release of such polish composition, it is preferable 5～13,000Mm ^2, in particular 5~8,700mm ^2. For the same reason, the ratio of the total area of the apertures 31 to the area of the first surface 31a facing the liquid holding sheet 2, that is, the aperture ratio is 1 to 50%, particularly 3 to 33%, especially 3 to 25. % Is preferred.

  It is desirable that the liquid holding sheet 2 can be impregnated with a large amount of the polish composition and is excellent in the sustained release property of the composition. It is also desirable that no settling occurs when impregnated with a large amount of polish composition. Details thereof will be described later.

  The polishing composition impregnated in the liquid holding sheet 2 is an agent mainly for the purpose of polishing and protecting hard surfaces such as flooring. The polish composition comprises (a) a water-insoluble polymer, (b) a glycol solvent, (c) a surfactant, and (d) at least one ester compound selected from the group consisting of a carboxylic acid ester and a phosphate ester. Contains. The cleaning article 1 according to the present embodiment includes (a) that the polishing composition is impregnated in the liquid holding sheet 2 at a high impregnation rate, and (b) the solid content of the water-insoluble polymer (a) in the composition. The weight ratio of (d) to the ester compound is characterized by being in a specific range.

  The weight ratio of the solid content of the water-insoluble polymer (a) to the ester compound (d) in the composition is 40: 1 to 6: 1, preferably 24: 1 to 12: 1, more preferably. Is from 24: 1 to 16: 1. By setting the weight ratio of the solid content of the water-insoluble polymer of (a) to the ester compound of (d) within this range, the foam remains when the cleaning composition 1 is used to spread the polish composition. Can be prevented. Moreover, leveling property improves and a dry film becomes uniform.

The components in the composition will be described. (A) The main component of the water-insoluble polymer is a component that gives gloss by forming a film on a floor such as flooring. The water-insoluble polymer is not particularly limited as long as it is a film-forming polymer. For example, a polymer of an ethylenically unsaturated monomer, preferably an emulsion polymer of an ethylenically unsaturated monomer. Alkyl acrylates or methacrylates of C ₁ -C ₈ as ethylenically unsaturated monomers, mono- or di - (C ₁ ~C ₅₎ alkyl itaconates or fumarate, maleic anhydride, styrene, vinyltoluene, acrylonitrile, methacrylonitrile, Selected from at least one of acrylamide, methacrylamide, acrylic acid, methacrylic acid, itaconic acid, fumaric acid, citraconic acid, crotonic acid, betaacryloxypropionic acid, hydroxy (C ₁ -C ₆ ) alkyl acrylate or methacrylate, and divinylbenzene It is desirable that Of these, alkyl acrylates or methacrylates of C ₁ -C _8, styrene, acrylic acid, methacrylic acid, divinylbenzene is preferable.

  The main component of the (a) water-insoluble polymer is an acrylic resin having a minimum film-forming temperature of at least one component of 10 ° C. to 50 ° C., and a resin having a minimum film-forming temperature of at least one component of 60 ° C. to 90 ° C. It is more preferable that it is configured in view of improving the coating workability. The ratio between the former and the latter is preferably 1: 9 to 6: 4 in terms of the weight ratio of the solid content.

  From the viewpoint of adjusting the slipperiness of the dry film, it is also preferable to use a polyolefin wax such as polyethylene wax, polypropylene wax, or derivatives thereof as a subcomponent of (a) the water-insoluble polymer. The polyolefin-based wax can be used in combination with the main components of the various water-insoluble polymers described above. The blending ratio of the main components of the various water-insoluble polymers and the subcomponents such as the polyolefin-based wax is 10: 1 to 10: 3 in terms of the weight ratio of the solid content, and the finish of the surface to be polished is good. It is preferable because it does not require the work of wiping and raising the gloss after drying.

  Polyethylene wax is a by-product produced during the production of polyethylene used in general molding containers, a method obtained by pyrolyzing polyethylene used in general molding containers, and the like. It can be obtained by a method of separating and producing low molecular weight polyethylene or an emulsion polymerization method. Examples of the polyethylene wax derivative include, for example, oxidized polyethylene wax, that is, a method in which a carboxyl group or a hydroxyl group is added to a polyethylene wax skeleton by a method such as air oxidation, maleic acid modification, fumaric acid modification, itaconic acid modification, or styrene modification. And the like. In particular, polyethylene wax and / or oxidized polyethylene wax are preferably used.

  Polypropylene wax is by-produced during the production of polypropylene used in general molding containers, the method obtained by pyrolyzing polypropylene used in general molding containers, and the like. It can be obtained by a method of separating and producing low molecular weight polypropylene. As a derivative of polypropylene wax, as in the case of the above-mentioned polyethylene wax, in addition to oxidized polypropylene wax having a carboxyl group or a hydroxyl group added to the polypropylene wax skeleton, maleic acid modification, fumaric acid modification, itaconic acid modification, or styrene Examples include modified products such as modified products. In particular, polypropylene wax and / or maleic acid-modified polypropylene wax is preferably used.

  The water-insoluble polymer (a) is preferably blended in the form of an emulsion in terms of facilitating the blending operation. The blending amount of the water-insoluble polymer is preferably 2 to 18% by weight, particularly 5 to 15% by weight as a solid content.

The type of glycol solvent (b) is not particularly limited, but alkylene glycol alkyl ether is preferably used. In particular, R ¹ O (C ₂ H ₄ O) _a (C ₃ H ₆ O) _b R ² (wherein R ¹ and R ² each represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, When one of them is a hydrogen atom, the other represents another group, a and b each represent an integer from 0 to 3, and when either one is 0, the other represents an integer of 1 or more). It is preferable to use an alkylene glycol alkyl ether.

  Examples of the alkylene glycol alkyl ether include ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, tripropylene glycol dimethyl ether or polyoxyethylene (wherein a = 1) polyoxypropylene (Wherein b = 3) glycol monobutyl ether. These alkylene glycol alkyl ethers can be used alone or in combination of two or more.

  The glycol solvent (b) is preferably blended in the polishing agent composition in an amount of 0.5 to 8% by weight, particularly 1.8 to 6% by weight because the drying time after coating can be shortened. .

  As the surfactant (c), any of anionic surfactants, nonionic surfactants, cationic surfactants and amphoteric surfactants are used, and particularly from the viewpoint of compatibility between detergency and finish. , Polyoxyalkylene (alkylene oxide addition mole number 1-20) alkyl (carbon number 8-22) ether, alkyl (carbon number 8-22) glycoside (average sugar condensation degree 1-5), sorbitan fatty acid (carbon number 8-8) 22) Nonionic activators such as esters and alkyl (C6-C22) glyceryl ethers and alkylcarboxybetaines, alkylsulfobetaines, alkylhydroxysulfobetaines, alkylamidocarboxybetaines, alkylamidosulfobetaines, alkylamidohydroxysulfobetaines Amphoteric surfactants having 8 to 24 alkyl carbon atoms such as It is preferably used. The surfactant is preferably blended in the polish composition in an amount of 0.01 to 1.0% by weight, particularly 0.05 to 0.5% by weight in terms of the finish of the surface to be polished.

As the ester compound (d), at least one selected from the group consisting of carboxylic acid esters and phosphoric acid esters is used. When the ester compound is a carboxylic acid ester, a saturated or unsaturated carboxylic acid ester can be used as the carboxylic acid ester. In particular, monoalkyl adipate, dialkyl adipate, alkyl oleate, 2,2,4-trimethyl-1,3-pentanediol monoalkylate, 2,2,4-trimethyl-1,3-pentanediol dialchelate or citric acid It is preferable to use monoalkyl, dialkyl citrate, or trialkyl citrate. The carbon number of the alkyl group in these carboxylic acid esters is preferably about C _{1 to} C ₁₀ . These carboxylic acid esters can be used singly or in combination of two or more.

When the ester compound of (d) is a phosphate ester, the phosphate ester may be a saturated or unsaturated hydrocarbon group (aliphatic group, aromatic group) optionally substituted with a substituent such as an alkoxy group. ) Can be used. For example, any one of phosphoric acid monoester, phosphoric acid diester, phosphoric acid triester, or a combination thereof can be used. Among these, it is particularly preferable to use a phosphoric acid triester from the viewpoint of compatibility with the main component of the water-insoluble polymer (a). The number of carbon atoms in the hydrocarbon moiety in these phosphate esters is preferably about C _{1 to} C ₄₀ . These phosphate esters can be used singly or in combination of two or more.

  The above carboxylic acid ester and phosphoric acid ester can be used in combination. When both are used in combination, one or two or more carboxylic acid esters and phosphoric acid esters can be used.

  The ester compound is blended in the polishing agent composition in an amount of 0.05 to 3% by weight, particularly 0.2 to 2.5% by weight. From the viewpoint of improving the properties.

  In addition to the components (a) to (d) described above, other components may be added to the polish composition. For example, various silicone compounds can be blended from the viewpoint of enhancing the spreadability of the composition or enhancing the gloss of the dry film. Examples of the silicone compound include silicone oil, silicone resin emulsion, amino-modified silicone, polyether-modified silicone, silicone rubber emulsion, and ethylenically unsaturated monomer polymer-modified silicone. The silicone compound can be blended in the polish composition preferably in an amount of about 0.01 to 1.6% by weight.

  Furthermore, an alkali agent, ethanol, a fragrance | flavor, a pigment | dye, an antibacterial and antifungal agent, etc. can also be mix | blended with a polish composition.

  The polish composition is mainly composed of water. Water is preferably blended in the composition at 70 to 96% by weight.

  The amount of the non-volatile content in the polish composition is preferably 3 to 20% by weight, more preferably 6 to 16% by weight in order to obtain an excellent drying rate. By setting it within this range, the gloss of the dry film increases and the surface to be polished is less likely to be damaged.

The non-volatile content concentration is determined from the amount of weight reduction after heating by adding a polish composition to sea sand. Specifically, after sufficiently drying, 20 g of sea sand adjusted to 20 to 35 mesh (420 to 840 μm) is placed in a heat-resistant container, and 2 g of the polishing agent composition is added and stirred. Leave in a dryer at 105 ° C. for 3 hours. Thereafter, it is gradually cooled in a desiccator at 23 ° C. After slow cooling, weighing is performed and the amount W (%) of the non-volatile content is obtained from the following formula.
W (%) = {(W ₁ −W ₀ ) / S} × 100
In the formula, W ₀ is the weight of the weighing pan (heat-resistant container + sea sand), W ₁ is the weight after drying (non-volatile content + heat-resistant container + sea sand), and S is the weight of the collected polishing composition. is there. Sea sand used for the measurement generally refers to those commercially available as chemical reagents. The amount of the non-volatile component is derived from a surfactant, a silicone compound and the like in addition to the water-insoluble polymer.

The glossing agent composition preferably has a viscosity at 20 ° C. of 1.2 to 8 mPa · s, particularly 1.5 to 5 mPa · s, from the viewpoint of good spreadability and finish. The viscosity is measured using a BL type viscometer (rotation speed: 60 rpm) of Tokyo Keiki Co., Ltd. (currently Tokimec Co., Ltd.). It is preferable that the polishing composition is released to 1.5 to 8 g / tatami, particularly 2 to 6 g / tatami on the surface to be polished. Note that one tatami mat here corresponds to 1.6 m ² .

  The polishing agent composition is impregnated in the liquid holding sheet 2 at a high impregnation rate. By being impregnated at a high impregnation rate, the polish can be spread over a wide area. However, in that case, the amount of the polish composition released in the initial stage of the spreading operation may exceed the required amount, and foaming may occur. According to the present invention, since the composition of the polishing composition is as described above, the generation of bubbles can be suppressed. The amount of the polish composition impregnated in the liquid holding sheet 2 is 300 to 3000% by weight, preferably 500 to 2500% by weight, based on the dry weight of the liquid holding sheet.

  As the liquid holding sheet 2 impregnated with the polish composition, a fiber assembly or a foam material is preferably used. It is desirable that the liquid holding sheet 2 can be impregnated with a large amount of the polish composition and is excellent in the release property of the composition. As such a material, in the case of a fiber material, a fiber aggregate such as bulky paper or a nonwoven fabric is suitable, and an airlaid nonwoven fabric, a needle punched nonwoven fabric or the like is particularly preferable. As a specific example of the fiber, either one or both of natural fiber and chemical fiber can be used. Examples of natural fibers include wood pulp. Examples of chemical fibers include rayon and acetate which are regenerated fibers, polyolefin fibers such as polyethylene and polypropylene which are synthetic fibers, polyester fibers, polyamide fibers such as nylon, and polyacrylonitrile fibers. In the case of foam materials, examples include foams that are generated or made porous by injection of low melting point solvents such as chlorofluorocarbon gas or air injection, etc., specifically polyurethane foam, polyolefin foam, etc. Is used.

The liquid holding sheet 2 has a density of 0.02 to 0.2 g / cm ³ , in particular from the viewpoint of increasing the holding capacity of the polishing composition and improving the release of the polishing composition during polishing. It is preferable that it is 03-0.15 g / cm < ³ >. Moreover, it is preferable that the basic weight of the liquid holding sheet 2 is 20 to 400 g / m ² , particularly 60 to 200 g / m ² . When the basis weight is within this range, the holding capacity can be made sufficiently large, and the processability of the liquid holding sheet 2 is also improved.

  The cleaning article 1 of the present embodiment can be used for polishing the surface to be polished in the form shown in FIGS. 1 and 2. Moreover, it is also preferable to use the cleaning article 1 of this embodiment in the form shown in FIG. In the form shown in FIG. 3, the cleaning article 1 is used in combination with the liquid sustained release sheet 4. The liquid sustained-release sheet 4 once diffuses the polishing composition released from the cleaning article 1 throughout the liquid sustained-release sheet, at a lower speed than the speed at which the polishing composition is released from the cleaning article 1. By releasing these, it is used for the purpose of gradually releasing the polish composition from the beginning to the end of use on the surface to be polished having a large area. The liquid sustained release sheet 4 is preferably made of a fiber material in the same manner as the liquid holding sheet 2 described above.

  Examples of the sheet material in which the polishing agent composition has a good diffusion in the plane direction include fiber sheets such as wet papermaking paper, spunlace nonwoven fabric, and meltblown nonwoven fabric. In the case of wet papermaking, the control of diffusibility can be adjusted by fiber type, beating degree, wet pressure (pressing before drying), calendering (pressing after drying), adding a filler, and the like. Examples of the fiber include softwood pulp and hardwood pulp, various modified pulp, rayon fiber, thermoplastic fiber, and the like. Among these, when a fiber having a small fiber diameter or a fiber having a short fiber length is used, the size (pore diameter) of the gap between the sheets formed between the fibers becomes small, and the diffusibility becomes desired. Further, by increasing the beating and increasing the calendering pressure, the diffusibility can be desired as well. Increasing the filler is also effective. In the case of a spunlace nonwoven fabric, the diffusibility is desired by using hydrophilic fibers such as cotton and rayon, using fibers having a small fiber diameter, or making the entangled state highly entangled. When the concavo-convex shape is formed on the liquid sustained-release sheet 4 by the above-described embossing, it is moistened by heat embossing by containing a thermoplastic fiber, preferably 5 to 95% by weight, more preferably 10 to 75% by weight. Even at times, it becomes easy to maintain the convex shape.

  The liquid sustained release sheet 4 of the present embodiment is composed of an inner layer sheet 41 and a surface sheet 42. The liquid sustained release sheet 4 may thus be a sheet laminate (multi-ply) or a single sheet (single ply). As shown in FIG. 4, both sheets 41 and 42 are overlapped and joined together. The inner layer sheet 41 has a rectangular shape that is substantially the same size as the container 3 in plan view. The surface sheet 42 has the same size as the length of the inner layer sheet 41. The surface sheet 42 extends laterally from both longitudinal sides of the inner layer sheet 41, and forms a pair of flaps 43, 43 in the liquid sustained release sheet 4. The purpose of use of the flap 43 will be described later. As shown in FIG. 4, the inner layer sheet 41 and the surface sheet 42 are integrated by joining the four sides of the inner layer sheet 41 to the surface sheet 42. That is, the liquid sustained release sheet 4 has two plies.

  When the liquid sustained release sheet 4 is composed of a laminated body of the inner layer sheet 41 and the top sheet 42 as in the present embodiment, the operability during use of the cleaning article 1 is further improved, and the inner layer sheet 41 is protected. There is an advantage. There is also the advantage that the release of the polish composition is further controlled. The constituent fibers used for the topsheet 42 can be the same as those described in Patent Document 2.

Regardless of whether the liquid sustained-release sheet is composed of a single sheet (single ply) or a sheet laminate (multi-ply), in order to develop a sustained release performance that uniformly releases a large amount of the polish composition It is necessary to prevent excessive retention of the polish composition by the liquid sustained release sheet 4. From this viewpoint, the liquid sustained-release sheet 4 preferably has a basis weight of 20 to 350 g / m ² , particularly 40 to 200 g / m ² .

The inner layer sheet 41 and the top sheet 42 may each be formed from the same material, or may be formed from different materials. As long as the basis weight of the liquid sustained-release sheet is within the above-mentioned range, the surface sheet 42 has a basis weight of 10 to 100 g / m ² , particularly 20 to 80 g / m ^2. It is preferable from the viewpoint that the strength is satisfied and unnecessary costs are not incurred.

  The inner layer sheet 41 has a large number of convex portions on the surface. As a result, the contact area between the inner layer sheet 41 and other sheets positioned on the upper and lower surfaces thereof is reduced. As a result, the excessive release of the polish composition that tends to occur in the initial use of the cleaning article 1 can be reduced, and the sustained release performance can be further improved. This convex portion is preferably formed over the entire sheet, and is formed, for example, by embossing. In particular, formation by steel match embossing is preferable from the viewpoint of maintaining the shape in a wet state. As the convex portion, for example, a rib shape or a dot shape is used. The inner layer sheet 41 of the present embodiment has a concave portion between the convex portions, and is unevenly shaped over the entire sheet. The concave portions and the convex portions are alternately arranged in the longitudinal direction and the width direction of the sheet. The shape of the concave portion is a shape obtained by inverting the convex portion.

  As shown in FIG. 4, like the inner layer sheet 41, the top sheet 42 preferably has a large number of convex portions. Thereby, the contact area with the surface to be polished is reduced, the friction during use of the cleaning article 1 is reduced, and the operability can be improved. The shape or the like of the convex portion formed on the top sheet 42 can be the same as the convex portion formed on the inner layer sheet 41.

  When using the cleaning article 1 and the liquid sustained release sheet 4 of the present embodiment, as shown in FIG. 3, the inner layer sheet 41 in the liquid sustained release sheet 4 is formed with the opening 31 in the container 3. 1 is arranged so as to face the surface 3a. Under this condition, the cleaning tool 5 shown in FIG. A cleaning tool 5 shown in FIG. 5 includes a flat head portion 51 on which the cleaning article 1 of this embodiment can be mounted, and a rod-shaped handle 53 connected to the head portion 51 via a universal joint 52. . The head portion 51 has a rectangular shape that is substantially the same size as the container 3 in plan view. The cleaning article 1 is attached to the head unit 51 so that the second surface 3 b (see FIG. 2) of the container 3 faces the lower surface of the head unit 51. At this time, the flaps 43, 43 in the liquid sustained release sheet 4 are folded back to the upper surface side of the head portion 51. Further, the flap is pushed into a plurality of flexible pieces 54 that form radial slits provided in the head portion 51. As a result, the cleaning article 1 is fixed to the head portion 51. In this state, the flooring and the like are polished.

  By using the cleaning article 1 of the present embodiment together with the liquid sustained release sheet 4, the following advantageous effects are exhibited. First, since the container 3 and the liquid sustained release sheet 4 are separated and the cleaning article 1 is hermetically housed in the bag-like container 3, a large amount of polish composition is applied to the cleaning article 1. It can be impregnated. Since the cleaning article 1 is hermetically housed in the container 3, there is an advantage that a hand is not soiled when the cleaning article 1 is mounted on the cleaning tool 5. Of course, the cleaning tool 5 is not dirty. Moreover, the polish composition does not leak out in the storage state before use. When the seal 32 is peeled off during use to expose the opening 31, the polish composition is released outside the container 3 without being blocked by the opening 31. The polish composition is gradually released from the liquid holding sheet 2. In addition, the polishing composition released from the liquid holding sheet 2 is once trapped on the liquid sustained release sheet 4 and then released onto the surface to be polished, so that the amount released is from the beginning to the end of use. More uniform. Moreover, since the inner layer sheet 41 and the surface sheet 42 constituting the liquid sustained-release sheet 4 are both unevenly shaped, the contact area with the surface to be polished is reduced, thereby gradually releasing the polishing composition. Will come to be. As described above, since the liquid holding sheet 2 is impregnated with a large amount of the polishing composition, the polishing composition can be sufficiently spread on a polishing target surface having a large area such as flooring. In short, in the present embodiment, the release of the cleaning agent or the like is not controlled by controlling the size and / or (aperture ratio) of the opening 31, but the combination of the cleaning article 1 and the liquid sustained release sheet 4 Is used to control the release of the polish composition.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, the polishing composition of the present invention is used by being impregnated in the cleaning article 1 shown in FIGS. 1 to 4, and the floor described in Japanese Patent No. 3578956 of the applicant's previous application. It may be used after being impregnated with a cleaning sheet.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples. Unless otherwise specified, “%” means “% by weight”.

[Examples 1 to 9 and Comparative Example 1]
A polish composition with the formulation shown in Table 1 was prepared. Details of each component in Table 1 are as shown in Table 2.

Airlaid non-woven fabric [conifer kraft pulp / thermoplastic fiber (heat-fusible polyester fiber) / binder resin = 33/57/10 (weight ratio)] 225 mm × 75 mm, basis weight 210 g / m ² (105 g / m ² , two sheets) and a density of 0.05 g / cm ³ ). Each composition was impregnated with 1100% of the dry weight of the liquid holding sheet to obtain a cleaning article.

  Next, a liquid-impermeable aluminum laminate sheet (thickness 49 μm) was used as the liquid-impermeable sheet. In addition to this, a sheet in which two long holes each having a width of 8.0 mm and a length of 210 mm were formed in the laminate sheet, and the long holes were previously sealed with an aluminum laminate sheet with an adhesive, was used. . A cleaning article was placed between these two laminate sheets, and the four sides of the two laminate sheets were sealed by heat sealing. As a result, an opening package having a size of 270 mm × 95 mm was obtained (the opening ratio of long holes was 13.0%).

As the inner layer sheet, mixed fiber raw material of coniferous kraft pulp / hardwood kraft pulp / thermoplastic fiber (composite fiber made of polypropylene (core) / polyethylene (sheath)) = 35/40/25 (weight ratio) is used, and it is a normal wet type. Two sheets of paper having a basis weight of 30 g / m ² obtained by the papermaking method were stacked, and further, the ones having an uneven shape formed by embossing with a steel match and bonded together were used. Furthermore, as a surface sheet, softwood kraft pulp / heat-shrinkable fiber (polypropylene (core) / polyethylene (sheath) composite fiber) / thermoplastic fiber (heat-bondable polyester fiber) = 30/60/10 (weight ratio) Using a mixed fiber raw material consisting of the above, a paper having a basis weight of 12 g / m ² to which a hydrophilizing agent has been added in the drying process of wet papermaking is bonded to a spunbonded nonwoven fabric (polyester (core) / polyethylene (sheath) composite fiber). A sheet having a basis weight of 40 g / m ² was used, which was further shaped by unevenness by steel match heat embossing. Then, the surface sheet and the inner layer sheet were integrated as shown in FIG. 4 to obtain a liquid sustained release sheet.

  The above-mentioned open package was overlapped so as to face the inner layer sheet in the liquid sustained-release sheet, and attached to the cleaning tool shown in FIG. At this time, the surface in which the long hole was formed in the open package was made to face the liquid sustained release sheet.

  After being attached to the cleaning tool shown in FIG. 5, a wiping operation was performed several times at the same location on the flooring, and the polish composition was excessively released to intentionally generate bubbles. Next, the location where the bubbles were generated and the periphery thereof were wiped over an area of 1 tatami. Thereafter, leveling properties and foam persistence were evaluated according to the following criteria. These results are shown in Table 1.

[Leveling properties]
○: A smooth dry film was formed.
[Delta]: Slightly inferior in smoothness, but no liquid pooling occurs.
X: A pooled portion was generated in the drying process, and the pooled portion was dried as it was, and a wavy and uneven film was formed.

[Foam persistence]
A: Bubbles disappeared when the area of 1 tatami mat was wiped.
(Triangle | delta): The foam remained a little in the stage which wiped the area 1 tatami.
X: Even if the area of 1 tatami was wiped, the foam spread over the entire surface of 1 tatami and remained.

  As is apparent from the results shown in Table 1, it can be seen that the cleaning article (product of the present invention) of each example has high leveling properties, and the residual foam is suppressed and the finish of the gloss target surface is improved.

It is a perspective view which shows one Embodiment of the glossy cleaning article of this invention. It is the II-II sectional view taken on the line in FIG. It is a perspective view which shows one usage pattern of the cleaning article shown in FIG. It is a schematic diagram which shows the structure of a liquid sustained release sheet. It is a perspective view which shows the state attached to the cleaning tool of the cleaning article shown in FIG.

Explanation of symbols

1 Glossy cleaning article 2 Liquid holding sheet 3 Container 4 Liquid sustained release sheet 5 Cleaning tool

Claims (5)

A polishing cleaning article obtained by impregnating a liquid holding sheet with a polishing agent composition at a high impregnation rate of 300 to 3000% by weight, wherein the composition is (a) a water-insoluble polymer, (b) a glycol-based solvent, (c A surfactant, and (d) at least one ester compound selected from the group consisting of a carboxylic acid ester and a phosphoric acid ester as an essential raw material, the solid content of the water-insoluble polymer of (a) and (d Polished cleaning articles having a weight ratio of 24: 1 to 12: 1 with the ester compound.   The ester compound of (d) is a carboxylic acid ester, and the carboxylic acid ester is a monoalkyl adipate, dialkyl adipate, alkyl oleate, 2,2,4-trimethyl-1,3-pentanediol monoalkylate, 2, The polished cleaning article according to claim 1, comprising 2,4-trimethyl-1,3-pentanediol dialchelate, monoalkyl citrate, dialkyl citrate, trialkyl citrate, or a combination thereof.   The polished cleaning article according to claim 1, wherein the ester compound of (d) is a phosphoric ester, and the phosphoric ester comprises any one of phosphoric monoester, phosphoric diester, phosphoric triester, or a combination thereof.   The glossy cleaning article according to any one of claims 1 to 3, wherein the composition has a viscosity at 20 ° C of 1.2 to 8 mPa · s.   The polished cleaning article according to any one of claims 1 to 4, wherein an amount of a non-volatile content in the composition is 3 to 20% by weight.

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