JPS604599A - Detergent - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a cleaning agent, and more particularly to a cleaning agent for removing adhesive residues after peeling off stickers, stickers, etc.

[Background of the invention]

Conventionally, residues left after removal of stickers, seals, etc. are wiped off using a commercially available cleaning agent, but it has also been done using a solvent such as alcohol. However, the cleaning agents mentioned above have weak solubility for natural rubber adhesives that are generally used for stickers, stickers, etc., so they cannot completely remove the residue after removing stickers, stickers, etc. There wasn't. Residues can also be removed using highly soluble cleaning agents such as toluene, but
It has the disadvantage that it severely damages the surface materials on which stickers, stickers, etc. are attached.

[Purpose of the invention]

The purpose of the present invention is to provide a cleaning agent that does not damage the surface on which stickers, stickers, etc. have been applied, is highly effective in removing residue after removal of stickers, stickers, etc., and is harmless to the human body. It is about providing.

[Summary of the invention]

The present inventor first used 1°1.2-4lichloro-1,2,2-1lifluoroethane (hereinafter referred to as Freon 1
13), a cleaning agent was prepared by mixing a fluorine-based surfactant with a mixed solution of isopropyl alcohol and water or polygelcol. Although this cleaning agent is effective in removing residues after peeling off stickers, seals, etc., there is room for improvement in terms of cleaning power.

As a result of careful consideration, we found that the reason why the cleaning power of the cleaning agent applied earlier was rather weak was that Freon 113, which has the highest cleaning power among the components of the cleaning agent, has the lowest boiling point, and it is still an azeotrope with other components. They discovered that the substance evaporates first, and when used as a spray or aerosol, it disperses into the air extremely quickly.

Therefore, an azeotrope is formed with Freon 113, and the evaporation is suppressed.
As a result of searching for a solvent that is harmless to the human body, they found that ethyl alcohol satisfies the above conditions. Furthermore, it was confirmed that adding isopropyl alcohol to a mixed solution of Freon 113 and ethyl alcohol made the cleaning power even stronger, leading to the present invention.

That is, the present invention is a cleaning agent characterized by containing Freon 113, isopropyl alcohol, and ethyl alcohol as main components.

In the present invention, the amount of each component during cleaning should be arbitrarily selected depending on the composition of the adhesive residue, the material of the member having the residue, the method of applying the cleaning agent, etc., but as a desirable example, the following composition: can be mentioned.

Freon 113: 30 to 80 liters Thiisopropyl alcohol 210 to 40% by weight Ethyl alcohol: 10 to 40 fjtt% The above three components are essential components in the present invention, and in order to adjust the evaporation rate of the solvent, it is harmless to the human body. (A small amount of IilJ solvent may be mixed.

[Embodiments of the invention]

Freon 113: 55 capacity lid Ethyl alcohol: 25 volumes Inflovir alcohol: 20 volume i% were mixed thoroughly.

The cleaning agent thus obtained was uniformly applied to a glass plate, a steel plate, and an acrylic resin coated plate by dissolving a natural rubber paste adhesive in toluene to a size of 10 cm x 10 Crn. After being left in a room for 3 days, when the sticky substance became completely hard and fixed, a cleaning agent was sprayed on it, it was wiped off with a paper towel, and the state of the sticky substance coming off was determined.

For comparison, the detergents of ethyl alcohol, isopropyl alcohol, and Freon 113 alone, and the detergent A of the earlier application according to the present invention were evaluated in the same manner. The test results are shown in Table 1.

Table 1 ◎: Sticky substance completely falls off within 30 seconds ○: Sticky substance completely falls off within 30 seconds to 3 minutes 623 minutes or more Sticky substance completely falls off ×: Sticky substance falls off completely after 3 minutes or more The next products of this invention that do not fall off completely are melamine decorative board and acrylic board.

Natural rubber plates, fluororesin sheets, phenol resin-coated surfaces, vinyl resin-coated surfaces, Acrylic IJ) were sprayed on resin-coated surfaces for 10 minutes and left for 5 minutes, but each surface was not attacked.

In addition, regarding the cleaning agent of the present invention, Freon 113 is added to 50 to 6
Even if the composition was varied within the range of 0% by volume, 30% by volume ftt% of ethyl alcohol, and (7% by volume ftt), the same results as above could be obtained.

The permissible concentration of Freon 113 and ether alcohol, which are components of the cleaning agent of the present invention, is 1000pp as an organic solvent.
m, which is the highest and safest, and isopropyl alcohol is also safe enough to be used as a raw material for cosmetics.

〔Effect of the invention〕

Therefore, from the above results, it is clear that according to the present invention, Freon 113? By mixing solvents of the three glaze types, soprohydric alcohol and ethyl alcohol, it is effective to remove and clean the residual glaze after removal without damaging the surface acoustic μ material on which stickers, stickers, etc. are attached. It is also harmless to humans.

Claims (1)

[Claims] 1.1, 1.2-) 1.2.2-) Lifluoroethane, isopropyl alcohol, and ethyl alcohol as main components.