JP2002209823A - Polishing and cleaning sheet for rigid surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polishing and cleaning sheet for rigid surfaces which makes it possible to simultaneously obtain good wipability of dirt, water repellence and luster, is extremely low in flawing of the surfaces to be cleaned by the solid particles included in the dirt and is good on operative performance in wiping away the dirt of the rigid surfaces, more particularly the coated surfaces of plastics, glass and automobiles, metals, floor materials, furniture, electrical appliances, or the like. SOLUTION: This polishing and cleaning sheet for the rigid surfaces is a laminate of a fiber assembly (A) containing 50 to 100 wt.% extremely fine fibers of fineness 0.01 to 1.2 dtex and (B) flexible material containing 50 to 100 wt.% hydrophobic fibers and is impregnated with 1 to 5 pts.wt. liquid polishing detergent containing 0.01 to 10 wt.% water repellent compound and 50 to 99 wt.% water per 1 pt.wt. sheet-like base material of 4 to 15 pts.wt. in the amount of threshold impregnation of its own weight of the material [the ratio (impregnation rate) of the amount of the impregnation of the polishing detergent to be actually impregnated with respect to the amount of the threshold impregnation does not exceed 80%].

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for wiping hard surfaces, especially plastics, glass, painted surfaces of automobiles, metals, flooring materials, furniture, electric appliances and the like. The present invention relates to a hard surface polished cleaning sheet having good operability, in which water repellency and luster are simultaneously obtained, and the surface to be cleaned is prevented from being damaged by solid particles contained in the dirt.

[0002]

2. Description of the Related Art
Hard surfaces such as indoor floors and automobile bodies are waxed from the viewpoint of preventing adhesion of dirt and aesthetic appearance, but these require a great deal of labor and time. In particular, for cleaning and polishing automobile bodies, use a car shampoo or the like to remove dirt and wipe off, then rinse with water and thoroughly wipe off moisture, apply natural or synthetic wax, dry, wipe off wax, etc. A series of operations are required, and there is a need for a method for imparting a preferable luster or gloss more easily.

[0003] As a method of simplifying such a work,
JP-A-62-47331, JP-A-11-1524
No. 62 discloses a polished cloth containing wax or silicone. The technology disclosed in these publications is a method of wiping a hard surface with a cloth impregnated with a wax component or a cleaning component. However, when the cloth is folded and the hard surface is wiped by directly holding the cloth, it is necessary to increase the thickness of the cloth over a large area or the cloth itself in order to express a necessary and sufficient thickness feeling, which leads to an increase in cost. Was. In addition, there is a problem in terms of usability such as the cloths being twisted or shifted during work (hereinafter referred to as workability). Furthermore, when solid particle dirt contained in dirt on the hard surface is directly wiped off with a cloth without washing with water or the like, the solid particle dirt attached to the fiber surface constituting the cloth is dragged, and the hard surface may be damaged. there were.

JP-A-2000-336580 discloses a water-repellent cloth containing trimethylsiloxysilicic acid and a trimethylsiloxysilicic acid derivative having a hydroxyl group. JP-A-2000-256969 discloses a water-repellent component. A water-repellent cloth impregnated with a treating agent emulsified with a water-repellent cloth, and JP-A-2000-351961 disclose a nonwoven fabric having a ratio of hydrophilic fibers to lipophilic fibers of 80/20 to 50/50 as a base material A. A washing, water repellent, and polished wet cloth in which a sheet obtained by laminating a base material B composed of only hydrophilic fibers is impregnated with an emulsified water repellent component is described. All of these are techniques relating to a sheet exhibiting water repellency and gloss, but because they do not have a sufficient feeling of thickness, they cannot be wiped well at the time of use, and they are insufficient for performing a uniform treatment on a hard surface. .

On the other hand, there is known a technique of using a cloth or the like as a substrate impregnated with a cleaning agent for cleaning window glass or the like. For example, the present applicant discloses in JP-A-10-165344 and JP-A-11-343500 a sheet having excellent cleaning properties by using a nonwoven fabric made of a specific fiber. However, even if the sheet disclosed herein is impregnated with a generally known polishing agent by a usual method, and used as a hard surface polishing cleaning sheet, it does not improve the thickness and scratches. Was. In addition, as a polishing detergent containing silicone,
JP-A-50-157288, JP-A-58-657
No. 77, JP-A-4-363375, JP-A-9-157546 and the like are known. As a sheet-like base material containing microfibers for wiping, Japanese Patent Application Laid-Open No.
227442, JP-A-4-295325,
JP-A-5-15481 and JP-A-5-9335
Although No. 0 publication is known, any of them does not describe a polished cleaning sheet which is excellent in usability and hardly scratches when treating a hard surface.

Accordingly, the present invention provides good dirt wiping properties and water repellency when wiping dirt on hard surfaces, especially plastics, glass, painted surfaces of automobiles, metals, flooring, furniture, appliances and the like. It is an object of the present invention to provide a polished cleaning sheet for hard surfaces with good operability, in which gloss is simultaneously obtained and scratches on the surface to be cleaned by the solid particles contained in the stain are extremely low.

[0007]

The present invention has a fineness of 0.01.
A laminated body of a fiber aggregate (A) containing 50 to 100% by weight of ultrafine fibers having a weight of ~ 1.2 dtex and a flexible material (B) containing 50 to 100% by weight of a hydrophobic fiber. The water-repellent compound is present in an amount of 0.01 to 10% by weight based on 1 part by weight of the sheet-like substrate having a critical impregnation amount of 4 to 15 parts by weight.
And a liquid polishing agent containing 50 to 99% by weight of water
５5 parts by weight impregnation [however, the ratio of impregnation amount of the polishing agent actually impregnated to the limit impregnation amount (impregnation rate) is 80%
Not to exceed]. Here, the limit impregnation amount is defined by JIS
The amount of impregnation relative to 1 part by weight of a sheet-shaped substrate when measured using a polishing agent instead of distilled water using the apparatus and method described in K 6550. The hydrophobic fiber is a fiber having an official moisture regain of 5% or less.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The sheet-like substrate used in the present invention is a fine fiber having a fineness of 0.01 to 1.2 dtex (hereinafter referred to as "fine fiber").
(A-1) Also referred to as fiber (hereinafter also referred to as base material A) containing 50 to 100% by weight of a flexible material containing 50 to 100% by weight of hydrophobic fiber (hereinafter referred to as base). (Also referred to as material B).

[0009] The sheet-like substrate as used herein refers to a substance obtained by removing a polishing agent from a polishing sheet for hard surface polishing. In addition, a fiber aggregate refers to an aggregate in which a plurality of single fibers are collected and entangled or partially structured by heat fusion.

The ultrafine fibers ((A-
1) Textile) is the 49th to 51st of “Textile Handbook” (2nd edition, edited by The Society of Textile Engineers, Maruzen Co., Ltd., issued on March 25, 1994).
The method is described on the page, and the polymer mutual array fiber method, peeling type composite spinning method, improved conventional spinning method, weight reduction processing method, super draw method, melt blow method, flash spinning method, beating method, mixing It can be manufactured by spinning, tack spinning, foam sheeting, centrifugal spinning, and composition modification.

Among these, it is particularly preferable to use split-type ultrafine fibers produced by a peelable composite spinning method. The split type ultrafine fiber is a fiber in which the fiber is split into a plurality of fibers by mechanical force, pressure, etc., and forms an ultrafine fiber having an irregular cross section. It is preferable in that the trapping property is improved. In addition, the number of divisions is preferably 6 to 20 split fibers, more preferably 6 to 10 split fibers, especially 8 split fibers, from the viewpoint of workability and low damage to the hard surface due to solid particle contamination.

The fineness of this (A-1) fiber is 0.01 to
1.2 dtex, preferably 0.01 to 0.9 d
The tex is favorable from the viewpoint of the ability to collect particle dirt and the damage to the hard surface due to solid particle dirt being low.

The fiber length of the fiber (A-1) is not particularly limited, and any of a long fiber filament and a short fiber staple fiber can be used.
mm short fiber staple fibers are preferred.

Further, (A-1) the material of the fiber is as follows:
Polypropylene fibers such as polypropylene fibers, polyethylene fibers, and the like, polyester fibers, polyamide fibers, acrylic fibers, polyvinyl chloride fibers, and composite fibers thereof. Examples of the fibers include polypropylene fibers, polyethylene fibers, and polyester fibers. It is more preferable to use splittable fibers consisting of polyethylene fibers, polyester fibers and polypropylene fibers, or polyamide fibers and polyester fibers, and in particular, chrysanthemum split type composite fibers consisting of polyester fibers and polyethylene fibers or polyester fibers and polypropylene fibers But,
It is preferable from the viewpoint that the collecting property of the particle stain and the damage of the hard surface due to the solid particle stain are low.

The base material A used in the present invention includes the above (A
-1) In addition to fibers, polyolefin fibers such as polypropylene fibers and polyethylene fibers, polyester fibers, polyamide fibers, acrylic fibers, polyvinyl chloride fibers and composite fibers thereof (core-sheath fibers, side-by-side fibers, etc.), polyurethane Fiber, hydrophilic polyester fiber, polyvinyl alcohol fiber, rayon,
Mixing one or more fibers selected from cotton, pulp, preferably acrylic fiber, polyamide fiber, and polyester fiber subjected to hydrophilization treatment (hereinafter also referred to as (A-2) fiber) is advantageous in terms of workability. Is preferred.

The fineness of the (A-2 fiber) is low in terms of workability and low damage to the hard surface due to solid particle contamination.
Preferably it is 0.8 to 10 dtex, more preferably 0.8 to 5 dtex.

(A-2) The fiber length of the fiber is not particularly limited, and either a long fiber filament or a short fiber staple fiber can be used, and a short fiber staple fiber of 20 to 110 mm is particularly preferable.

The compounding weight ratio of (A-1) fiber / (A-2) fiber is preferably at least 50/50, more preferably 60, from the viewpoint of low workability and low damage due to solid particle contamination.
/ 40 to 90/10.

Further, weight per unit area of the base material A used in the present invention, 5 to 200 g / m ^2, to be particularly 15 to 100 / m ^2, trapping of particles soiling, points and cost of scratching It is preferred in that respect.

The base material B is a flexible material containing 50 to 100% by weight of a hydrophobic fiber.
Non-woven fabrics, woven fabrics and those obtained by laminating fiber webs produced by the card method, etc., are included, and hold the polishes and detergents, and express the sense of thickness of the laminate, thereby improving workability. Nonwoven fabrics are preferred, and nonwoven fabrics such as thermal bond (air-through) nonwoven fabrics, spunlace nonwoven fabrics, and airlaid nonwoven fabrics are preferred.

The term "hydrophobic fiber" as used herein means a fiber having an official moisture content of 5% or less, and contains 50 to 100% by weight, preferably 70 to 100% by weight, from the viewpoint of increasing the thickness of the substrate B. The official moisture content referred to here is JIS L 01
05.

One of the important parts in the structure of the polished detergent sheet of the present invention is that the base material B contains a specific amount or more of hydrophobic fibers. Prior art JP-A-11-152462, JP-A-2000-351961, and JP-A-20
Any of the sheet-like substrates described in JP-A-H00-256969 uses a hydrophilic nonwoven fabric as the B substrate, which is completely different from the present invention in this point. As the fibers, for example, polypropylene fibers, polyolefin fibers such as polyethylene fibers, polyester fibers, polyamide fibers,
Acrylic fibers and their composite fibers (core-sheath fibers, side-by-side fibers, etc.) are exemplified. In the present invention,
Among these, one or more selected from polypropylene fiber, polyethylene fiber, and polyester fiber are preferable. The official moisture content of the core-sheath fiber is determined from the sheath. It is preferable that these fibers have a three-dimensional crimp from the viewpoint that the thickness of the substrate B is further increased. Moreover, when forming an uneven | corrugated part on the surface of a laminated body by heat processing, a heat-shrinkable fiber and a heat-crimpable fiber are used.

The fineness of the hydrophobic fiber is 0.8 to 20.
dtex, preferably 0.8 to 10 dtex is preferred from the viewpoint of increasing the sense of thickness.

The fiber length of the hydrophobic fiber is not particularly limited, and either a long fiber filament or a short fiber staple fiber can be used, and a short fiber staple fiber of 20 to 110 mm is particularly preferable.

The substrate B may be used in combination with hydrophilic fibers such as polyester fibers, polyvinyl alcohol fibers, rayon, cotton, pulp, etc., which have been further subjected to a hydrophilic treatment.

The basis weight of the entire substrate B is preferably 5 to 20.
0 g / m ^2, particularly preferably sense the thickness 15 to 100 / m ² is later integrated formation, it is better in terms of workability and cost.

Further, when a nonwoven fabric is used as the base material B in the present invention, it is preferable to bond the base material A to the base material A by entanglement or heat fusion by a water jet method. Also,
The base material A and the base material B may be laminated in three or more layers, but in this case, it is important that all or most of the portion in contact with the hard surface to be cleaned is the base material A. is there.
The most preferred sheet-like base material is a three-layer one in which both surfaces of the base material B are sandwiched between the base materials A.

The basis weight of the sheet substrate, which is a laminate of the substrate A and the substrate B, is preferably 10 to 300 g / m ² , more preferably 30 to 150 g / m ² .

By impregnating such a sheet-like base material with a polishing agent to be described later under specific conditions, the polishing agent does not appear too much during use, and uniform wiping and treatment can be performed to the end. .

The best mode of the sheet-like substrate of the present invention is:
It has a three-layer structure including the base material A and the base material B having the configuration shown in Table 1 below, and the base material B is sandwiched between the base materials A. The basis weight of the laminate is 30 to 150 g / m ^2. belongs to.

[0031]

[Table 1]

The polished cleaning sheet for hard surfaces of the present invention comprises:
The sheet-like base material is impregnated with a liquid polishing agent. In the impregnation, the critical impregnation amount of the sheet-like substrate is selected from 4 to 15 parts by weight, preferably 5 to 10 parts by weight per 1 part by weight of the sheet substrate. It is adjusted so as to be 1 to 5 parts by weight, preferably 1 to 3.5 parts by weight with respect to 1 part by weight of the base material. However, the ratio of the actually impregnated polisher to the limit impregnation amount (impregnation rate) must be adjusted so as not to exceed 80%, preferably in the range of 20 to 70%. In order to obtain a sufficient glossing effect and cleaning effect on hard surfaces, it is necessary to use a sheet-like base material having a specific range of the limit impregnation amount, and additionally, it is possible to efficiently and efficiently contaminate hard surfaces without scratching them. In order to remove the solid particles, the impregnation rate needs to be in the above range.

In the case of performing the polishing and polishing using the polishing and cleaning sheet of the present invention, an operation of bringing the surface of the base material A having the ultrafine fibers into contact with the hard surface is performed, so that an appropriate amount of polishing is performed by wiping pressure. The cleaning agent fills the space between the surface of the base material A and the hard surface, and this helps to entangle the solid fine particles of the dirt with the ultrafine fibers, so that a sufficient wiping effect can be achieved while suppressing the damage of the hard surface. . Too little or too much impregnation may hinder the incorporation of solid dirt into the ultrafine fibers and may also cause uneven gloss.

In the present invention, the thickness of the sheet obtained by impregnating the laminate of the base material A and the base material B with the polishing detergent is as follows:
The average is preferably 500 to 5000 μm, particularly preferably 500 to 3000 μm.

In the polished cleaning sheet of the present invention, it is preferable that the polished cleaning agent impregnated in the sheet-like substrate is substantially more impregnated on the substrate B than on the substrate A.

In the present invention, the water-repellent compound is added to the sheet-like base material comprising the base material A and the base material B in an amount of 0.01 to 10% by weight, preferably 0.05 to 5% by weight, particularly 0.1%. ~ 2
Wt. And 50 to 99.9 wt.%, Preferably 90 to 90 wt.
Impregnate with a 99.9% by weight polishes cleaner.

If the content of the water-repellent compound in this polishing detergent is less than 0.01% by weight, sufficient water repellency and luster cannot be exhibited on the hard surface. An excess of the water-repellent compound remains on the surface, and the effect of wiping off dirt is reduced, resulting in an uneven finish or gloss, which is not preferable. On the other hand, if the water content is less than 50% by weight, detergency against hydrophilic solid particle stains such as dust and sand is reduced, and if it exceeds 99.9% by weight, sufficient water repellency and gloss to the hard surface are obtained. Cannot be expressed, which is not preferable.

As the water-repellent compound, a generally used fluorine-based polymer can be used, but a silicone emulsion is preferred from the viewpoint of water-repellency, gloss and workability.

Silicone is an organopolysiloxane oil, specifically, dimethylpolysiloxane oil (hereinafter referred to as dimethylsilicone), phenylmethylpolysiloxane in which some of the methyl groups of dimethylsilicone are substituted with phenyl groups. Also, in addition to straight silicones such as methylhydrogenpolysiloxane in which a part of the methyl group is replaced by hydrogen, and dimethylpolysiloxanediol having a reactive silanol group at the terminal of the molecule, the methyl group of these straight silicones Part of which is "organic group other than methyl group" (hereinafter referred to as modified silicone)
Is mentioned. Modified silicone is described in “Silicone Handbook” (edited by Kunio Ito, published by Nikkan Kogyo Shimbun, 199
It is mainly illustrated in Chapter 6 of August 31, 0, first edition, 1st printing). Examples of the organic group other than the methyl group include an organic group containing an amino group, an organic group containing an amide group, an organic group containing a polyether group, an organic group containing an epoxy group, an organic group containing a carboxy group, and an organic group containing an alkyl group. And at least one of an organic group containing an alkoxy group, an organic group containing a fluoroalkyl group, and an organic group containing a carbinol group. In the present invention, a silicone having an organic group containing an amino group (hereinafter, amino-modified silicone) is particularly preferred, and an amino-modified silicone represented by the following (I) is more preferred. When these silicones are blended in a polishing detergent, one type or a combination of a plurality of types may be used. In the present invention, a sheet-like substrate is impregnated with a combination of amino-modified silicone and dimethyl silicone, amino-modified silicone and modified silicone having an organic group containing a polyether group, amino-modified silicone and modified silicone having an organic group containing an alkoxy group. It is preferable from the viewpoints of detergency and luster when made.

[0040]

Embedded image

When the water-repellent compound is an amino-modified silicone, the amino equivalent is 500 to 50,000 g / mol,
Furthermore, 500 to 20,000 g / mol, especially 1000
の も の 2000 g / mol are preferred.

In the present invention, it is preferable to use the silicone compound as an emulsion obtained by emulsifying it in water,
It is preferable to use a surfactant as the emulsifier. Preferred surfactants include anionic surfactants such as alkylbenzenesulfonic acid or a salt thereof, an alkyl sulfate salt, a polyoxyalkylene alkyl ether sulfate, an olefin sulfonate, an alkane sulfonate, and a fatty acid salt, and a polyoxyalkylene alkyl. Or non-ionic surfactants such as alkenyl ether, polyoxyalkylene alkyl phenyl ether, fatty acid alkanolamide or alkylene oxide adduct thereof, sucrose fatty acid ester, sorbitan fatty acid ester, fatty acid glyceride, alkyl glucoside, alkyl glyceryl ether, amine oxide, sulfo Amphoteric surfactants such as betaine and carbobetaine, mono-long-chain alkyl quaternary ammonium salts, di-long-chain alkyl quaternary ammonium salts, and tri-long-chain alkyl 4
And cationic surfactants such as quaternary ammonium salts and silicone surfactants such as polyether-modified silicone.

Particularly preferred surfactants in the present invention are alkylbenzene sulfonic acid or a salt thereof, alkyl sulfate ester salt, polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkyl or alkenyl ether, polyoxyalkylene alkyl phenyl ether, sucrose fatty acid Esters, sorbitan fatty acid esters,
Fatty acid glyceride, alkyl glucoside, alkyl glyceryl ether, mono long chain alkyl quaternary ammonium salt and di long chain alkyl quaternary ammonium salt.

In the present invention, the weight ratio of surfactant / silicone is preferably 1/1000 to 2/1, more preferably 5/1000 to 1/1, particularly preferably 1/1.
It is preferably from 00 to 1/1 in view of emulsifiability and detergency. The average particle size of the emulsified particles is 0.01 to 30 μm.
m, preferably from 0.01 to 5 μm, from the viewpoint of detergency and stability.

In the present invention, when an amino-modified silicone is used as the water-repellent compound of the polishing detergent, it further contains an organic acid having at least one carboxyl group or a salt thereof, particularly one having 3 to 7 carbon atoms. Is preferred.

In the amino-modified silicone, since the aminoalkyl group is oxidized by heat or ultraviolet rays, the laminate impregnated with the aminoalkyl group may yellow over time. In order to sufficiently suppress yellowing, the pH of the polishing detergent is preferably set to 7.0 or less, and more preferably, an organic acid having one or more carboxyl groups or a salt thereof is preferably contained. In particular, it is preferable that all the carboxyl groups constituting the organic acid are mixed at a ratio of 0.1 to 10 mol, more preferably 0.3 to 5 mol, per 1 mol of all the amino groups constituting the amino-modified silicone. The amount is preferably 0.1 mol or more in order to obtain a sufficient yellowing suppressing effect, and is preferably 10 mol or less in order to suppress the occurrence of unevenness and glare in the finish.

Specific organic acids include lactic acid, gluconic acid, succinic acid, glutaric acid, adipic acid, malic acid, tartaric acid, maleic acid, fumaric acid, itaconic acid, citric acid,
Amino acids such as benzoic acid, salicylic acid and salts thereof, glycine, alanine, valine, leucine, serine, glutamic acid, and aspartic acid, and salts thereof are preferred. Of these, lactic acid, succinic acid, malic acid, tartaric acid, citric acid, benzoic acid and salts thereof are preferred.

It is preferable that the pH of the polishing detergent is adjusted to 3 to 7, preferably 4 to 6. When the pH is lower than 3, the surface is not only unfavorable because it causes not only hand roughness, but also damage to the surface to be cleaned. If the pH exceeds 7, the necessary and sufficient yellowing suppressing effect cannot be obtained, which is not preferable. The pH is preferably adjusted using the above-mentioned organic acid.

According to the present invention, the polishing detergent may further contain a terpene compound so that the uneven gloss can be sufficiently suppressed even under the condition that the temperature of the hard surface under the hot sun becomes extremely high. Preferred, particularly monoterpene compounds, specifically α-pinene, β-pinene, camphene, limonene, dipentene, terpinolene, myrcene, linalool, geraniol, nerol, citronellol, hydroxycitronellol, tetrahydrolinalool, myrcenol, terpineol, menthol, Monoterpene compounds selected from borneol and isopulegol are preferred. The terpene compound is preferably contained in the polishing detergent in an amount of preferably 0.01 to 2% by weight, more preferably 0.02 to 1% by weight, and particularly preferably 0.05 to 1% by weight.

In the present invention, it is preferable to further add a water-soluble solvent for the purpose of improving the cleaning effect of the polishing detergent or for the stability of the liquid phase. Specifically, 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, ethanol, isopropanol, propylene glycol, polyoxyethylene phenyl (or benzyl) ether (the number of moles of ethylene oxide added) 1-5), ethylene glycol monomethyl ether and propylene glycol monomethyl ether are preferred, and ethanol, isopropanol, propylene glycol and propylene glycol monomethyl ether are particularly preferred. The water-soluble solvent is preferably 0.1 to 20% by weight in the polishing detergent, particularly preferably 0.5 to 10% by weight.
It is good to contain by weight.

In the present invention, the polishing agent may further include, for example, JP-A-7-233394, column 3, line 49 to line 4,
Column 24, components commonly used in detergents such as sequestering agents, thickeners, coloring agents, fragrances, bactericides, preservatives, etc., wax components, alkali agents and JP-A-10-2
The water-insoluble or hardly water-soluble solid particles described in claim 4 of 87900 can be contained. In addition, a perfume component other than the component (C) may be contained, but the perfume component other than the terpene compound is added in an amount of 0.1 so as not to impair the effect of the component (C).
It is preferable that the content be 1% by weight or less. When these components are contained, it is desirable that they be contained in a polishing detergent at 5% by weight or less.

The best mode of the polishing detergent of the present invention is shown below. Amino-modified silicone 0.1 to 2% by weight Dimethyl silicone 0 to 0.5% by weight Surfactant containing polyoxyethylene alkyl ether 0.01 to 0.5% by weight Ethanol and / or isopropanol 0.5 to 10% by weight Citric acid, malic acid, and / or succinic acid Amount to make pH 4.0 to 6.0 Terpene compound 0.05 to 0.2% by weight Perfume other than terpene compound 0 to 0.1% by weight Preservative 0 to 0.5 % By weight Deionized water remaining ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Total 100% by weight

If the impregnating amount of the polishing detergent is less than 1 part by weight, sufficient detergency cannot be obtained, and if it exceeds 5 parts by weight, the release amount of the polishing detergent on the hard surface becomes too large, and Remains and becomes more difficult to dry.

[0054]

EXAMPLES [Example 1] <Preparation of base material> A sheet-like base material to be used for a polished cleaning sheet was prepared by the following method.

Substrate 1: A fiber having a core-sheath structure in which the core is made of polypropylene and the sheath is made of polyethylene as the base material B,
Low melting point fiber with three-dimensional crimp shape (2.8 dtex ×
The fibers were thermally bonded at 140 ° C. using 51 mm and a sheath component melting point of 130 ° C. to produce a thermal bond (air through) nonwoven fabric having a basis weight of 30 g / m ² . Next, as the base material A, a chrysanthemum flower type split fiber (divided average fineness of 0.42
dtex) and acrylic fiber (0.9dtex, 51m)
and m) were mixed at a weight ratio of 70:30 to obtain a fiber web having a basis weight of 27 g / m ² produced by a conventional card machine. The obtained base material A was laminated on both sides of a thermal bond (air through) nonwoven fabric as the base material B. Subsequently, a water needling treatment was performed, and the thermal bond (air-through) nonwoven fabric and the fiber web were entangled to produce a sheet-like base material as a laminate (area 300 mm × 300 m).
m, basis weight 84 g / m ² , sheet thickness 1100 μm, ratio of base material A (total of both surfaces) / base material B thickness is 5/5).

Substrate 2: A laminated sheet was produced in the same manner as in Substrate 1 except that acrylic fiber was not used in Substrate A (area 300 mm × 300 mm, basis weight 7).
5 g / m ² , sheet thickness 900 μm, substrate A (total of both surfaces) / substrate B thickness ratio is 5/5).

Base material 3: rayon (1.7 dtex × 40)
mm), spun lace nonwoven fabric (area 300 mm x 300 mm,
Weight: 84 g / m ² , thickness: 800 μm)

Substrate 4: Cotton towel (area 300 mm × 30)
0 mm, basis weight 300 g / m ² , thickness 3000 μm)

<Preparation of Polishing Detergent> Polishing detergents were prepared in the mixing ratio shown in Table 2.

The notes a) to c) described in Table 2 are as follows. a) Dow Corning Toray Silicone Co., Ltd., B
Y16-850 (amino equivalent 4000, viscosity 1100m
amino-modified silicone 30% by weight of m ² / s), the ethylene oxide 6 nonionic surfactant 10% by weight obtained by mole addition and balance water solution was stirred emulsified with a homomixer to lauryl alcohol. The average particle size of the emulsified particles is 0.1 μm
It is. Table 2 shows the weight of the amino-modified silicone. b) Toray Dow Corning Silicone Co., Ltd., S
H200-50cs (viscosity 50 mm ² / s) dimethyl silicone. c) Methyl paraben.

<Performance evaluation method> A plate (1000 mm × 10
00 mm) was left outdoors for 3 weeks to obtain a test coating plate to which dust had adhered.

A polishing detergent having the composition shown in Table 2 was used in 30
The polished cleaning sheet of Table 2 impregnated into a substrate cut to a size of 0 mm x 300 mm was folded in four, the test coating plate was wiped, and the thickness of the sheet when wiping was removed.
Workability, dirt removal of dust, gloss of paint plate, water repellency,
The scratch on the surface was judged by three panelists according to the following evaluation criteria. The results of the determination were averaged, and Table 2 shows the case where the evaluation score was 1 or more and less than 2; All evaluations were performed at room temperature.

(Thickness of sheet) There is a sufficient feeling of thickness: 1 The feeling of thickness is slightly insufficient but at a satisfactory level:
2 Insufficient sense of thickness: 3 Insufficient sense of thickness: 4

(Workability) The sheet can be wiped without being twisted or displaced: 1 The sheet can be slightly distorted or displaced, but can be wiped without any problem: 2 The sheet can be slightly distorted or displaced and is slightly difficult to wipe: 3 The sheet is twisted or slipped, making it very difficult to wipe: 4

(Dust removal of dirt) The dirt is completely removed by wiping once or twice: The dirt is removed almost completely by wiping once or twice: To a satisfactory level after wiping three to five times Stain removes: Does not remove until stains are satisfactory after wiping 33-5 times:
4

(Gloss unevenness) Uniform gloss without unevenness: 1 Slight unevenness is observed but at a satisfactory level: 2 Glossy unevenness is observed: 3 Quite unevenness is observed: 4

(Water repellency) Uniform water repellency is obtained without unevenness: 1 Water repellency is obtained almost uniformly: 2 Slightly insufficient water repellency: 3 Water repellency is not obtained: 4

(Scratch on the coating plate) Almost no scratches: 1 Small scratches similar to running scratches: 2 Slight scratches: 3 Scratches: 4

[0069]

[Table 2]

Example 2 Polishing detergents were prepared in the proportions shown in Table 3. 2.5 parts by weight of a polishing detergent was impregnated into 1 part by weight of the sheet-like base material 1 (fiber aggregate) of Example 1 to prepare polished cleaning sheet samples 6 to 12. Note that a) to c) are the same as in the first embodiment.

<Evaluation Method of Performance>
Was evaluated by the method described in (1). The gloss unevenness was evaluated by setting the plate surface temperature to 60 ° C. using a hot plate in order to reproduce the situation under the scorching sun. The results are shown in Table 3.

[0072]

[Table 3]

Example 3 Polishing detergents having compositions shown in Table 3 having different pHs were prepared. pH as an alkaline agent,
Adjusted by using monoethanolamine. 2.5 parts by weight of these polishing cleaners was impregnated with respect to 1 part by weight of the sheet-like substrate 1 (fiber aggregate) of Example 1 to obtain polished cleaning sheets of Sample Nos. 13 to 20. The same evaluation as in Example 2 was performed using the obtained polished cleaning sheet. The state of yellowing during storage was examined according to the following evaluation method. Table 4 shows the results.

The annotations b) and c) in the table are the same as in the first embodiment. The following were used for the amino-modified silicone of d). d) 30% by weight of an amino-modified silicone having the following structure (amino equivalent: 2000), 10% by weight of a nonionic surfactant obtained by adding 6 mol of ethylene oxide to lauryl alcohol, and the remaining water are stirred and emulsified by a homomixer. Was. The average particle size of the emulsified particles was 0.1 μm.

[0075]

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<Evaluation Method for Yellowing> The polished cleaning sheet was folded in four, and this was pillow-wrapped with a multilayer film having an aluminum foil layer, and a 30 mm × 60 mm size hole was provided.
After storage at 60 ° C. for 24 hours, the yellowing state of the sheet around the hole was examined.

[0077]

[Table 4]

[0078]

According to the cleaning sheet for polishing a hard surface of the present invention, good wiping properties of dirt, water repellency and luster can be obtained at the same time when wiping dirt on a hard surface, and the dirt is contained in the dirt. Damage to the surface to be cleaned by the solid particles is extremely low, and the operation performance is good.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) C11D 7/24 C11D 7/24 7/26 7/26 17/04 17/04 (72) Inventor Kenji Ishikawa 2606 Kao Co., Ltd., Research Laboratories, Kaiga-cho, Haga-gun, Tochigi Prefecture (72) Inventor Yutaka Saito 2606 Kabane-cho, Akaba-machi, Haga-gun, Tochigi Pref. F-term in company laboratory (reference) 3B074 AA02 AA03 AA07 AA08 AB01 AC02 CC03 4H003 BA19 BA22 DA05 DA09 DA11 EB04 EB37 ED02 ED03 ED28 FA21 4H020 BA34

Claims (5)

[Claims] 1. A fiber aggregate (A) containing 50 to 100% by weight of ultrafine fibers having a fineness of 0.01 to 1.2 dtex and a flexible material (B) containing 50 to 100% by weight of hydrophobic fibers. A liquid containing 0.01 to 10% by weight of a water-repellent compound and 50 to 99% by weight of water based on 1 part by weight of a sheet-like substrate having a critical impregnation amount of 4 to 15 parts by weight with respect to its own weight. Polishing for hard surfaces impregnated with 1 to 5 parts by weight of a polishing detergent [however, the ratio of impregnation amount of the polishing detergent actually impregnated to the limit impregnation amount (impregnation ratio) does not exceed 80%] Wash sheet. 2. The polishing sheet for hard surface polishing according to claim 1, wherein the sheet-like base material has a three-layer structure in which both surfaces of the fiber assembly (B) are sandwiched between the fiber assemblies (A). 3. The polishing sheet for hard surface polishing according to claim 1, wherein the water-repellent compound is an amino-modified silicone emulsion having an average particle size of emulsified particles of 0.01 to 30 μm. 4. The polishing detergent according to claim 1, further comprising an organic acid having at least one carboxyl group or a salt thereof.
4. The hard surface polished cleaning sheet according to claim 3, wherein is 4 to 6. 5. The hard surface polishing sheet according to claim 1, wherein the polishing agent further contains a terpene compound.