JPH0643596B2 - Cleaning agent for electrified electric / electronic devices or information recording media - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cleaning agent for a chargeable electric / electronic device or an information recording medium.

[Conventional technology]

Screens such as televisions and word processors, record boards, etc. are easily charged, and dust and other particles adhere due to charging. Then, the adhered dust and other particles are firmly adhered by their respective adhering forces and electrostatic attraction. For this reason, the attached dirt tends to be hard to remove, and since it is an electric product, it cannot be washed with water. In order to remove such dirt, wiping with a wet cloth or wiping with a commercially available cleaning agent has been conventionally performed.

[Problems to be solved by the invention]

However, since the commercially available cleaning agents are for washing clothes and tableware, they do not have antistatic properties even if they have cleaning properties, and they can remove dirt temporarily, but immediately. Will be charged and dust etc. will adhere and become dirty,
There was a problem that the surface became rough and the stains were more likely to occur during repeated washing.

[Means for solving problems]

The present invention is to solve the above-mentioned problems, and by having a specific cationic surfactant and an amine oxide as essential components, it has both detergency and antistatic property to remove stains and prevent recontamination. It is an object of the present invention to provide a highly effective cleaning agent for electric / electronic devices or information recording media.

The present invention provides a cationic surfactant represented by the general formula (I)
It is a cleaning agent for electrified electric / electronic devices or information recording media, which contains 0.01 to 90% by weight and 0.01 to 90% by weight of an amine oxide represented by the general formula (II).

(However, R ¹ and R ⁵ are the same or different hydrocarbon groups having 8 to 24 carbon atoms, and R ² , R ³ , R ⁴ , R ⁶ and R ⁷ are the same or different hydrocarbon groups having 1 to 24 carbon atoms, respectively. Group or hydroxyalkyl group, X is a halogen atom, n is 0
~ 3. ) Is.

In the general formulas (I) and (II), the hydrocarbon group having 8 to 24 carbon atoms represented by R ¹ and R ⁵ is 2-ethylhexyl group, n-octyl group, isononyl group, n-decyl group, n -Undecyl, lauryl, isotridecyl, myristyl, cetyl, isocetyl, stearyl, isostearyl, oleyl, octyldodecyl, behenyl, decyltetradecyl and other alkyl and alkenyl groups, and xylyl Group, phenylethyl group, butylphenyl group, dibutylphenyl group, octylwenyl group,
There are aralkyl groups such as nonylphenyl group, dodecylphenyl group, dioctylphenyl group, dinonylphenyl group, styrenated phenyl group and the like, alkylaryl groups, and the like, and alkyl groups or alkenyl groups having 12 to 22 carbon atoms are particularly preferable.

The hydrocarbon group having 1 to 24 carbon atoms represented by R ² , R ³ , R ⁴ , R ⁶ , and R ⁷ includes a methyl group, an ethyl group, an allyl group, an n-propyl group, an isopropyl group, and an n-butyl group. , Isobutyl group,
Tert-butyl group, n-amyl group, isoamyl group, n-hexyl group, isoheptyl group, 2-ethylhexyl group, n-octyl group, isononyl group, n-decyl group, n-undecyl group, lauryl group, isotridecyl group, Alkyls and alkenyls such as myristyl, cetyl, isocetyl, stearyl, isostearyl, oleyl, octyldodecyl, behenyl, decyltetradecyl, and phenyl, benzyl, xylyl, phenylethyl Groups, cresyl groups, butylphenyl groups, dibutylphenyl groups, octylphenyl groups, nonylphenyl groups, dodecylphenyl groups, dioctylphenyl groups, dinonylphenyl groups, aralkyl groups such as styrenated phenyl groups, aryl groups and the like, Particularly, an alkyl group having 1 to 18 carbon atoms, an alkenyl group or Aralkyl group is preferred.

As the hydroxyalkyl group, hydroxyethyl group, hydroxypropyl group, dihydroxypropyl group,
Examples thereof include a hydroxybutyl group and the like, and a hydroxyethyl group is particularly preferable. Examples of the halogen atom represented by X include chlorine, bromine, iodine and the like, with chlorine being particularly preferable.

In the general formulas (I) and (II), the carbon number of R ^{1 to} R ⁷ is limited because the detergency is insufficient when the carbon number of R ¹ and R ⁵ is less than 8, and R ¹ This is because if R ^{7 has} a carbon number of more than 24, it becomes a solid, the solubility in water, a solvent, etc. becomes small, and the washing property becomes insufficient. Also, n is limited when n exceeds 3,
This is because the antistatic effect is reduced.

The present invention comprises a cationic surfactant represented by the general formula (I) and an amine oxide represented by the general formula (II) in an amount of 0.01 to
The composition contains 90% by weight. In the present invention, the reason why these two components are essential components is that, when only one of the two components is contained, either the cleaning property or the antistatic property is lacking. The concentration of the cationic surfactant and the amine oxide is limited because the detergency or the antistatic property is extremely poor outside the scope of the present invention. The preferred content of these components is 0.1 to 20.
% By weight.

The cleaning agent of the present invention can contain a solvent such as water and other components in addition to the above two components, and it is particularly preferable that the cationic surfactant and the amine oxide be an aqueous solution.

The cleaning agent of the present invention, as other components, further polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester,
Nonionic surfactants such as sorbitan fatty acid ester and fatty acid alkanolamides, carboxybetaine, sulfobetaine, amphoteric surfactants such as amino acids, solvents such as methanol, ethanol, isopropanol, ethylene glycol monoethyl ether, and acetone,
Viscosity modifier, antifoaming agent, leveling agent, polish, dye,
Fragrances and the like can be added.

The cleaning agent of the present invention is produced by mixing the above-mentioned components, and is used as it is or diluted with a solvent such as water, to wash the chargeable electric / electronic device or the information recording medium. The cleaning method is the same as the conventional cleaning agent.

The cleaning target of the cleaning agent of the present invention includes a main body of electric / electronic equipment such as a television, a VTR, a word processor, a personal computer, an audio device, a tape recorder, a radio, a telephone, a facsimile, a copying machine and the like (CRT). , LCD panels, keyboards, printers, etc.), as well as records, optical disks, CDs
-The main body and various parts (including a cassette, a case, etc.) of a chargeable information recording medium such as a ROM are included.

The concentration when the detergent of the present invention is used is usually 0.01% by weight or more, preferably 0.1% by weight or more, more preferably as a total amount of the cationic surfactant and the amine oxide.
It is 0.5% by weight or more. If the concentration is less than 0.01% by weight, the detergency and recontamination resistance are insufficient. Further, if the concentration is too high, it may not be uniformly dissolved or may have high viscosity, which may make it difficult to use. Therefore, it is usually preferably 20% by weight or less.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY Since the present invention contains a specific cationic surfactant and amine oxide as essential components, it is excellent in detergency and antistatic property, and is a stain that is strongly adhered to a chargeable electric / electronic device or information recording medium by charging. Can be easily removed, and anti-static property is added to prevent re-contamination, thereby lengthening the cleaning interval and suppressing the tendency for dirt to become contaminated due to roughening of the surface to be cleaned due to repeated cleaning. be able to.

〔Example〕

 Examples of the present invention will be described below.

Example 1 The record board was washed with the cleaning agents shown in Table 1.
After washing, wash with water and dry, observe the condition of dirt with the naked eye,
Detergency was evaluated. Then, recording was performed 4 times for 30 minutes each, and the state after that was visually observed to evaluate the recontamination property. The results are shown in Table 1.

The criteria for evaluation of the detergency and recontamination property in Table 1 are as follows.

◇ Evaluation of washability after washing, washing with water and drying ○ …… Stain is completely removed.

Δ: Almost all dirt is removed.

×: More than half of the stain remains.

◇ Evaluation of recontamination after playing a record ○ …… No dirt such as dust is attached.

×: There is dirt such as dust.

From the results shown in Table 1, it can be seen that the products of the present invention have excellent cleaning properties and anti-soil redeposition properties.

Example 2 2.35 g of behenyltrimethylammonium chloride, 2.65 g of stearyldimethylamine oxide, and glutamic acid of 0.
3 g, 0.5 g of salt, 0.01 g of fragrance, 0.01 g of dye, and 94.18 g of ion-exchanged water were placed in a 200 ml beaker and stirred at 70 ° C. until uniform to obtain a detergent. The obtained cleaning agent was filled in a container equipped with a pump-type spray and cooled to room temperature to obtain an extremely viscous cleaning agent.

The cleaner was sprayed onto a television screen that was used for about 10 hours a day and a word processor screen that was used for about 8 hours a day, and then wiped with a damp cloth. The cleaning effect was satisfactory, and the four corners, which are usually hard to remove, could be cleaned. After washing, the television also used a word processor, but it was clean for a week.

As a comparative example, the same test was performed on the composition of Comparative Example 3 in Table 1. As a result, it was possible to clean the parts other than the four corners, which were effective in cleaning, but when a television and a word processor were used, dust adhesion was found on the next day. After a week, almost the entire surface was soiled.

From the above results, it can be seen that the product of the present invention has excellent cleaning properties and anti-redeposition property.

Claims (3)

[Claims] 1. A charging property characterized by containing 0.01 to 90% by weight of a cationic surfactant represented by the general formula (I) and 0.01 to 90% by weight of an amine oxide represented by the general formula (II). Cleaning agent for electric / electronic devices or information recording media. (However, R ¹ and R ⁵ are the same or different hydrocarbon groups having 8 to 24 carbon atoms, and R ² , R ³ , R ⁴ , R ⁶ and R ⁷ are the same or different hydrocarbon groups having 1 to 24 carbon atoms, respectively. Group or hydroxyalkyl group, X is a halogen atom, n is 0
~ 3. ) 2. The cleaning agent according to claim 1, wherein R ¹ and R ⁵ are each an alkyl group having 12 to 22 carbon atoms, an alkenyl group, an aralkyl group or an alkylaryl group. 3. R ¹ , R ³ , R ⁴ , R ⁶ and R ⁷ are each an alkyl group having 1 to 18 carbon atoms, an alkenyl group, an aralkyl group, an aryl group or a hydroxyalkyl group. The cleaning agent according to item 2 or 3.