JP2551965B2 - Cleaning composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to cleaning of textiles, particularly textiles such as carpets, chairs, sofas, interiors of automobiles, textiles for interior and interior, which cannot be washed by a usual electric washing machine. Composition. More specifically, the present invention relates to a cleaning composition that uses a powdery soil-occluding agent as a soil carrier (in the art, referred to as soil scavenger) instead of water in washing in which a large amount of water cannot be used as in an electric washing machine.

[Problems to be Solved by Prior Art and Invention]

Recently, powder detergents have been increasingly used for detergents for textile products which cannot be washed by an electric washing machine, especially for carpets and the like. Such a cleaning agent contains a surfactant, a soil absorbing agent, water and the like as main components. Surfactants separate dirt from the fibers and, in combination with water, transfer dirt to the occlusion agent. Then, after the water is evaporated, the occlusion agent is removed together with dirt by cleaning with brushing or an electric washing machine. Examples of dirt storage agents include powdered synthetic resin foam (US Pat. No. 3598844), acid clay, talc, and sawdust (US Pat. No. 3418).
No. 243), bleached wood flour (Swiss Patent No. 461685), etc. have been proposed. However, these techniques have the disadvantage that the drying time is slow and the user cannot use the item to be cleaned such as carpet for a relatively long time, although the amount of water is small. Further, zeolite (West German Patent Application Publication No. 2544605), hollow silica (Japanese Patent Laid-Open No. 61-130400), and particulate polymer substances (Japanese Patent Publication No. 50-33882) have high detergency. However, the occluding agent finely crushed after washing remains in the fiber product, which has the disadvantage of impairing the feel and whitening in appearance. Furthermore, even in the technique of using a composite such as a mixture of silica particles and organic fibers (Japanese Patent Publication No. 60-8280) or a mixture of zeolite powder and cellulose powder (US Pat. No. 4,493,781), fiber products after washing The inconvenience that the occlusion agent remains is not solved at all.

[Means for solving the problem]

As a result of intensive studies to solve the above problems, the present inventors have found that porous silica having specific properties may be used as a soil scavenger, and have completed the present invention.

That is, the present invention is a non-volatile component other than the porous silica, 5 to 75% by weight of porous silica having a dirt storage capacity of 0.3 or more and a static friction coefficient of 0.05 to 0.30, and a cleaning component of 25 to 95% by weight. The present invention provides a composition for washing a textile product, which has a content of less than 15% by weight and is used for washing a textile product which cannot be washed by a usual electric washing machine.

The porous silica used in the present invention can roll well on the fiber surface only when its coefficient of static friction is in the range of 0.05 to 0.30, and it is possible to remove the porous silica together with dirt by a method such as vacuum suction or wiping. be able to. As a result, the residual amount of the porous silica on the article to be washed such as a textile product is very small, and the article to be washed is not bleached or roughened.

In the present invention, the static friction coefficient is measured by using the apparatus shown in FIG. 1 (static friction coefficient measuring device, TYPE-HEIDON-1φ, manufactured by Shin Toyo Kagaku Co., Ltd.) according to the following steps (1) to (5). It was measured.

(1) Stick cotton knit on moving block 2.

(2) 1 g of porous silica is evenly dispersed on the flat plate 1.

(3) When the apparatus is started, the synchronous motor 4 winds up the special wire 5 at a constant speed, and the flat plate 1 rotates about the center point 3.

(4) The sensor 6 catches the movement of the center pole 7 at the same time when the moving block 2 starts to slide at the slip-out angle θ ° and automatically and instantly stops.

(5) Read the friction coefficient directly from the friction coefficient scale 8.

Further, the dirt storage capacity (the measuring method is shown below) of the porous silica used in the present invention needs to be at least 0.3 or more. If it is less than 0.3, it is impossible to sufficiently retain the dirt, and the dirt remains on the article to be cleaned such as textiles. Therefore, the appearance does not give the user the feeling that the dirt has been removed, and the sticky feeling remains, which is also unfavorable in the feeling (touch feeling).

<Measurement Method of Soil Storage Capacity> (1) The following coffee stains were used as model stains.

Instant coffee 20g Powdered milk 40g White sugar 40g Tap water 900g Heat with good stirring, boil for about 10 minutes and then cool.

(2) Prepare 10g of porous silica precisely weighed in a beaker and remove 1g of model dirt like 1,2,3,4,5 ...
Each sample is added in increasing increments and each sample is added
Sieve pass rate is measured using an 80 mesh screen.

(3) Assuming that the model soil addition weight when the sieve passage rate is less than 100% is M, the soil storage capacity is given by the following equation.

Dirt storage capacity = M / 10 As mentioned above, the precise friction coefficient of porous silica is 0.05 to 0.30.
The condition that the condition (1) is mainly reduces the residue of the porous silica on the object to be cleaned, and the condition that the dirt storage capacity is 0.3 or more reduces the residue of the dirt on the object to be cleaned.

However, if either of these essential conditions is lacking, the effects of either one are lost, rather than the effects of either one being lost. That is, it has a synergistic effect that each effect can be exhibited only when both of the respective conditions are satisfied.

The porous silica used in the present invention has a static friction coefficient of 0.
Any value may be used as long as it has a stain adsorption capacity of 0.3 or more from 05 to 0.30, but a better effect can be obtained by selecting a particle size distribution, a major axis / minor axis ratio, and the like.

That is, if the particle size distribution is less than 10 microns, 30% by weight or less, 10 to 30 microns, 40% by weight or more, more than 30 microns, 30% by weight or less Less. Further, when porous silica particles having a major axis / minor axis ratio of 1.3 or less are used, the residual amount of the porous silica on the fiber product is similarly reduced.

The porous silica particles, which are an essential component of the present invention, are incorporated in the composition in a proportion of 5 to 75% by weight. If the blending amount is less than 5% by weight, stains cannot be sufficiently removed, and 75
When the content exceeds 50% by weight, 25% by weight or more of the following cleaning components for dissolving stains cannot be contained. Therefore, the dirt cannot be sufficiently dissolved.

In the present invention, as a cleaning component that dissolves dirt,
Examples include the solvents, nonionic surfactants, anionic surfactants, alkaline agents, etc., which have been used as conventionally known detergent components, shown in (i) to (iv) below.

(I) Solvents Examples of the solvents include the following (1) to (6).

(1) Water (2) Alcohols (ethanol, isopropanol, etc.) (3) Polyhydric alcohol solvents (cellosolves, ethylene glycol, propylene glycol derivatives, etc.) (4) Hydrocarbon solvents (petroleum) (5) Halogenated hydrocarbon solvents (trichloroethane, perchloroethylene, etc.) (6) Fluorine solvents (Freon 113, etc.) (ii) Nonionic surfactants Polyoxyethylene alkyl ethers (carbons with alkyl groups) are used as nonionic surfactants. Number 8-22, with or without branching and unsaturation, the same for the following alkyl groups, the degree of polymerization of oxyethylene is 3 to 100, and the same for the following polyoxyethylenes), polyoxyethylene alkyl Phenyl ether, sorbitan mono,
Di- and tri-fatty acid esters (fatty acids having 8 to 22 carbon atoms, whether or not branched and unsaturated, the same applies to the following fatty acids), polyoxyethylene sorbitan mono,
Di, tri fatty acid ester, glycerin fatty acid ester,
Examples thereof include polyoxyethylene fatty acid ester.

(Iii) Anionic Surfactant As the anionic surfactant, sodium or potassium fatty acid, sodium, potassium, ammonium or alkanolamine salt of alkylsulfate, sodium or potassium alkylbenzenesulfonate, sodium or potassium alkylnaphthalenesulfonate, dialkyl. Examples thereof include sodium sulfosuccinate, sodium, potassium, ammonium or alkanolamine salts of polyoxyethylene alkyl sulfate, and sodium polyoxyethylene phenyl ether sulfate.

(Iv) Alkaline agent Examples of the alkaline agent include alkanolamines, morpholine, and ammonia.

Furthermore, the cleaning composition of the present invention not only removes stains, but also improves the feeling of finishing of the article to be cleaned such as textiles, that is, imparts flexibility, imparts antistatic properties, and improves slipperiness. For textile products such as cationic surfactants, long-chain fatty acid esters, aqueous polyethylene, aqueous polyurethane, aqueous polyester, aqueous nylon, polyvinyl acetate, etc. for the purpose of improving the texture such as giving stiffness and elasticity, and giving elasticity. An appropriate amount of texture improver can be added.

In the detergent composition of the present invention, other additives may be added depending on the type of the form, that is, water in the case of being in a liquid state in a bottle, or water when the detergent is used for dilution. A suitable amount of citric acid, sodium ethylenediaminetetraacetate, phosphate, borate and the like can be added as a sequestering agent for the metal ion of water. Further, as a settling agent for porous silica, guar gum, xanthan gum, gum arabic, carboxymethyl cellulose, starch, organic thickeners such as polyvinyl alcohol, bentonite,
Inorganic thickeners such as laponite, smectite and montmorillonite can also be used in suitable amounts. Further, in the case of an aerosol form, compounds such as sodium silicate, ammonia, sodium benzoate, benzotriazole, benzothiazole and the like can be used in appropriate amounts as rust preventives because of the problem of can corrosion.

Needless to say, when the cleaning composition of the present invention is used in the form of a powder having a small amount of solvent, it is not necessary to take the above consideration into consideration. Further, in any of these forms, a small amount of antibacterial agent, dye or pigment, fragrance, etc. may be added depending on the purpose.

Various cleaning ingredients including the above-mentioned cleaning agents must be added in a total amount of 25 to 95% by weight in the composition,
The content of each additive is not particularly limited. However, when the total content of the non-volatile components among the additives is 15% by weight or more, these non-volatile additives remain on the object to be cleaned and give an undesired finishing feeling such as stickiness and roughness. Therefore, the total content of inactive components other than the porous silica in the composition of the present invention needs to be less than 15% by weight.

The cleaning composition of the present invention can be in the form of powder, liquid, aerosol, spray or the like, but is not limited to these forms.

Hereinafter, each form of the cleaning composition of the present invention will be described.

(1) Powder form; obtained by setting the ratio of other cleaning components / porous silica particles to about 3 or less.

(2) Liquid state; obtained by setting the ratio of other cleaning component / porous silica particles to about 3 or more.

(3) Aerosol; cleaning composition 100 having the above composition
An aerosol can is filled with 5 parts by weight and 5 to 300 parts by weight of the propellant. Examples of the propellant include dimethyl ether, liquefied natural gas, freon gas and the like.

(4) Spray type; liquid type, whose viscosity is
Those less than 200 centipoise can be used in pressure-accumulation spray containers.

The method of using the composition of the present invention, in any of the above-mentioned forms, sprinkles the composition of the present invention on the stain, brushes it (dissolves the stain exuded by the liquid detergent), and then dry (the stain is occluded in the porous silica). After that, the porous silica is suctioned off together with dirt by an electric vacuum cleaner or the like.

〔The invention's effect〕

The composition of the present invention is in the form of powder, aerosol, liquid,
It can be used in various forms such as paste, but even if it is washed in any form, dirt can be easily removed from the textile product, and the time required for drying after washing is short, and brushing after drying is possible. Or, after removing the occluding agent together with the dirt using an electric vacuum cleaner, it does not remain on the textile product. Therefore, the touch of the object to be washed after the washing is not impaired at all, and the dirt can be sufficiently removed, so that the feeling of stickiness and roughness due to the dirt is eliminated, and the feeling of new article can be restored. . This is a great advantage especially for sofas and carpets.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Example 1 35 parts by weight of various kinds of porous silica, 30 parts by weight of ethanol, 30 parts by weight of water, polyoxyethylene, whose static friction coefficient, particle size distribution, dirt storage capacity and major axis / minor axis ratio are values as shown in Table 1. (8) Various powdery cleaning compositions containing 3 parts by weight of lauryl ether and 2 parts by weight of diethanolamine having a dampness were obtained.

As a model stain test piece, rapeseed oil (2 g of rapeseed oil colored with Sudan III applied to a 10 cm × 10 cm acrylic pile carpet), coffee (instant coffee 10 g, milk powder 20 g, sugar 30 g, water 500 g solution) Boiled for 10 minutes, and after cooling, apply 5 g of this solution to a 10 cm x 10 cm acrylic pile carpet and dry it.)
Prepared two types. 3 g of each cleaning composition was sprayed on these model soil test pieces, rubbed with a brush for 1 to 2 minutes, dried for 10 to 15 minutes (at room temperature), and then vacuum-sucked to remove the cleaning effect. evaluated. The evaluation was visually judged by 10 people according to the following criteria. At the same time, the feel was sensory evaluated by 10 people according to the following criteria.

 The results are summarized in Table 1.

<Evaluation point of cleaning effect> 1: No cleaning effect (same as before cleaning) 2: Slightly removed stain 3: Slightly removed stain 4: Slightly removed stain 5: Completely removed stain <Hand feel Evaluation points> 1: Strongly textured 2: Slightly grainy 3: Slightly grainy 4: There is no graininess and feel is good As is apparent from Table 1, the comparative sample No. 1 has a low dirt occlusion capacity and therefore has a poor cleaning effect. The coefficient of static friction is within the range of the present invention, but since dirt remains, the feel is not good. The comparative product No. 8 has a good cleaning effect, but the coefficient of static friction is out of the range of the present invention, and the hand feel is not good. The products No. 2 to 7 of the present invention are overwhelmingly better in touch feeling and cleaning effect than the comparative product. or,
By adjusting the particle size distribution as shown in Nos. 2 to 4 of the product of the present invention,
Further, as shown in No. 5 of the product of the present invention, the feel was further improved by adjusting the ratio of major axis / minor axis.

Example 2 A porous silica having a coefficient of static friction of 0.2, a dirt storage capacity of 1.0, a particle size distribution of less than 10 μm, 20% by weight, a particle size of 10 to 30 μm, 60% by weight, a particle size distribution of more than 30 μm, 20% by weight, and a major axis / minor axis ratio of 1.1. , 10 parts by weight of ethanol, 10 parts by weight of ethylene glycol monomethyl ether, 3 parts by weight of isopropyl myristate, 3 parts by weight of polyoxyethylene (8) lauryl ether, 1 part by weight of monoethanolamine, and 73 parts by weight of water as a liquid cleaning component. Were combined to obtain various forms of the cleaning composition of the present invention shown in Table 2.

The cleaning effect and touch feeling of the obtained cleaning composition were evaluated in the same manner as in Example 1. The comparative product No. 12 was wiped with a towel without using an electric vacuum cleaner.

 The results are shown in Table 2.

As is clear from Table 2, the comparative product No. 12 does not contain silica remaining in the test piece, but has poor cleaning effect, so that stains remain and the feel is poor. No. 9 to 11 of the product of the present invention have good cleaning effect and feel in any form.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a static friction coefficient measuring device. 1 ... Plane plate, 2 ... Moving block 3 ... Center point, 4 ... Synchronous motor 5 ... Special wire, 6 ... Sensor 7 ... Center pole 8 ... Friction coefficient scale

Claims (3)

(57) [Claims] 1. A dirt storage capacity of 0.3 or more and a static friction coefficient
Consisting of 5 to 75% by weight of porous silica of 0.05 to 0.30 and 25 to 95% by weight of a cleaning component, the content of non-volatile components other than porous silica is less than 15% by weight, and normal electric washing A composition for cleaning textiles, which is used for cleaning textiles that cannot be cleaned by a machine. 2. A porous silica particle having a particle size distribution of less than 10 micron, 30 wt% or less, 10 to 30 micron, 40 wt% or more, more than 30 micron, 30 wt% or less.
The cleaning composition according to any one of the preceding claims. 3. The cleaning composition according to claim 1, wherein the ratio of major axis / minor axis of the porous silica particles is 1.3 or less.