JPS5834515B2 - new cleaning tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to various cleaning tools used for cleaning purposes, and particularly to a cleaning tool suitable for cleaning glass products (eg mirrors, windows, display cases, etc.).

Conventionally, two to three methods have been used to clean glass products, but the method of spraying a spray set of cleaning agents mainly composed of an anionic surfactant solvent solution directly onto the glass and wiping it off with a dry cloth is the most effective method for cleaning glass products. It has the disadvantage of requiring unnecessary effort, such as having to wipe it several times.

In addition, silicone (organopolysiloxane) has excellent wettability to glass, and in particular, cloth or paper impregnated with dimethylpolysiloxane, which has a molecular weight of about 600, is highly effective as a "glasses cleaner." Siloxane-impregnated cloth or paper has poor stain retention;
It is unsuitable as a cleaning tool for repeated use on heavily soiled windows.

On the other hand, as general cleaning products, cloth or paper impregnated with mineral oil alone or a composition containing mineral oil and a surfactant are used, but the dirt retention and dirt removal properties are somewhat satisfactory. It cannot be used on glass or mirrors because spiders will appear after wiping it.

Methods using alkylolamides, soaps, etc. are also known, but they have the disadvantage that their performance changes markedly depending on the water content and that it is difficult to remove oily stains.

The inventors aimed to improve these shortcomings.

As a result of repeated research, we have arrived at the present invention.

That is, in the present invention, at least one of an organopolysiloxane and a fluorinated organosilane having a viscosity of 30 cst or less at 20°C is an essential component.

This cleaning tool is impregnated with a composition in which organopolysiloxane and fluorine-substituted organosilane components account for 40 to 99% by weight of the essential components.

The viscosity at 20°C used in the present invention is 30
An organopolysiloxane having a cst or less is a polymer having a structural unit represented by the general formula.

tR2 is each independently selected from hydrogen and a hydrocarbon group, and examples of the hydrocarbon group include methyl, ethyl, 1so-propyl, and tert-
Examples include groups such as butyl and benzyl.

However, a part of R,, R2 may be substituted with an alkoxy group (for example, a group such as methoxy, ethoxy, 1so-propoxy, tert-butoxy), a fluorine atom, or the like.

The terminal end of the polymer may be bonded to any group (eg, hydrocarbon group, alkoxy group, hydrogen, etc.).

The polymer may also have a cyclic structure (eg polycyclosiloxane).

Among the above organopolysiloxanes, the average molecular weight is 250~
1,000 dimethylpolysiloxane, average molecular weight 20
Particularly preferred are methylhydropolycyclosiloxanes having a molecular weight of 0 to 450, and these fluorine-substituted polysiloxanes are also preferred.

Various types of fluorine-substituted organosilane can be used in the present invention, but the boiling point is 100
C. or higher and an average molecular weight of 150 to 400 is preferred.

Examples of these include CF s CH2S t (C2
H5) 3C2F5CHFCHFCH2Si(CH3)
3°C2F5CHFCH2Si(C2H,)3.

(i C3H?) 2 S I F2 etc.

The viscosity of the organopolysiloxane used in the present invention, fluorine-substituted organosilane, is 30 cs at 200C.
It is necessary that it be less than or equal to t.

If it exceeds 30 cst, it will not wet the glass and will cause spiders to appear after wiping, so this is not desirable.

Examples of the mineral oil used in the present invention include paraffinic hydrocarbons, naphthenic hydrocarbons, and mixtures thereof, and have a viscosity (37.8°C) of 5 to 150 est (
Particularly preferred are those (8 to 50 cst).

In addition, examples of fatty acid esters of lower alcohols include saturated or unsaturated fatty acid esters of lower alcohols, and fatty acids for these esters are usually those having 8 or more carbon atoms (preferably those having 12 to 18 carbon atoms). used.

These fatty acids may have side chains.

Specific examples of esters include isoprobyl laurel/-t,
Examples include isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, methyl laurate, and methyl palmitate.

Mineral oil and ester can be used together.

For example, high viscosity mineral oil alone is difficult to dissolve in polysiloxane, but it can be used in combination with low viscosity mineral oil or ester.

The component ratio of the composition used in the present invention is: organopolysiloxane and/or fluorine-substituted organsilane: mineral oil and/or ester = 50 to 80:
It is 50-20.

In the present invention, anionic, cationic, amphoteric, nonionic, or other surfactants may be added as emulsifying, dispersing, or sterilizing agents, as well as sterilizing agents, preservatives, fragrances, alcohols, and aromatic/chlorinated solvents. You may also add a small amount of.

The cleaning tool of the present invention is made by impregnating various materials with the above composition, and the materials used include cloth (e.g., nonwoven fabric, knitted fabric), paper, foam sheet (e.g., polyurethane), etc. desirable.

In order to oil these materials with the above-mentioned composition, they can be directly impregnated by a straight oiling method (e.g., spray method, roller method), or they can be emulsified and dispersed in water and then applied using an emulsion oiling method (e.g., immersion method, complete adsorption method). ), and in that case, it is appropriate to contain the composition of the present invention in an amount of 5 to 30 wt% based on the weight of the material.

The cleaning tool of the present invention removes dirt by simply wiping the object once or twice, and also removes dirt when applied to glass products. In addition, the material retains dirt well even after repeated use, preventing re-contamination.
Not only is there less re-adhesion of "sticks" to the object after oral administration, but the adhesion is also easy to remove, requiring half the effort of conventional methods.

In addition, by additionally treating the cleaning tool of the present invention treated with the above-mentioned composition with glycerin, ethylene glycol, diethylene glycol, polyethylene glycol, etc., which have moisturizing properties, the above-mentioned performance (stain removal property, dirt retention property,
It is also possible to further improve fogging prevention.

Examples will be explained below.

The composition of Example 1 was applied to cotton knit by spraying at 10% O, W,
After oiling and permeating into the fibers at 40 to 50°C, mirrors and show window glasses were wiped, and there was no "cloudy" appearance, and stain removal was good.

Further, even after wiping the heavily soiled window glass with 10771', the soil removal property was still good.

For comparison, 10% o of dimethylpolysiloxane (950 in molecular weight) was applied to the same cotton knit.
w, f When wiping mirrors and show window glass with oil supplied using the spray method, initial dirt removal performance was good, but only 1 mF of window glass with the same level of dirt as above was wiped. The stain removability deteriorated and it could not withstand further use.

Example 2 The compositions of Example 2 and 3 were each dispersed in water, and after completely adsorbing IO% o, w, f on cotton knit, 40~
When I wiped the dressing table and window glass with a cloth that had been dried at 50 degrees Celsius and had no moisture removed, I found that there were no spiders, and the stain removal was good, and even after one month, there were no more lumps compared to areas that had not been wiped. It was difficult for dirt to stick to it.

Example 4 CF3 instead of dimethylpolysiloxane 10cst
CH2CH2S i(C2H5) a (molecular weight = 21
Example 1 except that 2, refractive index -1,3962) was used.
When a test was conducted in the same manner as above, there was no "cloudiness" and the stain removability was good.

Comparative test The composition of the present invention obtained in Example 1.2 above and another composition (composition of silicone oil and the solvent used in Examples 1 and 2) were applied to cotton knit at 10% o and w, respectively. , f adhering, and using the cloth, comparative tests were carried out on stain removal performance and stain removal ability retention on heavily soiled land glass,
The results are shown in the table below.

(11 Stain removability: Observe with the naked eye the state of dirt removed from the glass and the degree of cloudiness at the beginning of the dirt wiping operation, and evaluate it as ○ (good), △ (poor removal), ×
(Causes cloudiness).

(2) Retention of stain removal ability The area of the glass that can be wiped with the same stain removal ability as at the beginning of the stain wiping operation is shown.

The higher the number, the better the dirt retention property of the cotton knit, indicating that dirt can be removed from a larger area.

Claims (1)

[Claims] The organopolysiloxane and fluorine-substituted organosilane components include at least one of an organopolysiloxane and a fluorine-substituted organosilane having a viscosity of 30 cst or less at 120°C, and at least one of mineral oil and a fatty acid ester of lower acylecol. A cleaning tool impregnated with a composition in which the essential ingredients have a proportion of 50 to 80% by weight.