KR20150046679A - Compositions for automobile cleansing - Google Patents

Abstract

The present invention provides a composition which generates rich foam and is proper for a cleanser for an automatic car washing machine. The composition has excellent low-temperature stability and thus does not cause precipitation of floating matters at low temperatures. The composition has improved product stability after freezing and thawing in winter. The existing cleanser for an automatic car washing machine is contained in a 20-liter container occupying the space of a car washing place. Moreover, it is inconvenient to use the existing cleanser because a user should life the container and dilutes the existing cleanser at a certain ratio. However, the composition of the present invention can be produced to be contained in a container in the volume anyone can easily lift and can be dissolved in a short time. Therefore, the composition can be used very conveniently. The composition includes: 30-98.99 wt% of water; 1-50 wt% of a surfactant; and 0.01-5 wt% of a sequestering agent.

Description

{Compositions for automobile cleansing}

The present invention relates to a composition for cleaning automobiles.

The automatic car washer is a device that automatically cleans the contaminants on the exterior painted surfaces of automobiles. Hyundai people in busy everyday lives do not waste their time on the outside of the car, but mostly do car wash using automatic car washer. It shows a tendency to increase as the year passes.

The increase in the penetration rate of automatic car washes accelerated the development of automatic car washes, and thus various kinds of automatic car washes have been developed. The basic structure of an automatic car washer consists of a body, brush, dryer and other additional equipment of a size suitable for the purpose of use. Type automatic washing machine stops the vehicle to be washed and moves back and forth through the rail provided with the automatic car washer main body and car wash the car in accordance with the set step System, and a tunnel type automatic car wash system is a system that car is washed in stages installed in a car wash as a vehicle moves through a rail when a car is temporarily stopped on a rail installed in a car washer, and a quasi-tunnel type automatic car was combined with a tunnel type Some of the steps are car washing while the main body is moving. Some of the steps are car washing by moving automatically through the rails. The automatic washing machine is designed for buses and cargoes and car washing system. It is basically a car washer detergent and wax 30-60 ml of the stock solution is inhaled and the system operates in a common system that is diluted with 30-100 L of water inside the machine.

The increase in the use of automatic washing increased the amount of cleaning agent used, and the wastewater causing environmental pollution started to flow through the sewer. At present, a water treatment system is installed in an automatic car wash to regulate the inflow of pollutants into the outside, but it is difficult to install a wastewater treatment system in a practically automatic car wash.

Surfactants have been used in various fields for decades, and sulfonic acid salts, which are the main raw materials of synthetic detergents used in the past, are among the typical petroleum surfactants among anionic surfactants. Anionic Surfactant in Petroleum Surfactant Dodecylbenzenesulfonic acid salt has been used since the end of the 1940s for 50 years and has been widely used because it has excellent washing power as well as resistance to hard water. However, as environmental pollution of water became severe as a raw material showing low biodegradability, regulation of use of alkylbenzenesulfonate was applied. Due to the regulation of the use of alkylbenzenesulfonate as described above, a straight chain alkylbenzenesulfonate has been developed, which has improved biodegradability and has equivalent cleansing power than an alkylbenzenesulfonate surfactant. However, alkylbenzenesulfonate anionic surfactants do not have complete biodegradability. Therefore, it is necessary to develop a raw material to reduce environmental pollution. In recent years, as a regulation for preventing environmental pollution, a measure has been established to prohibit a specific amount of the anionic surfactant from flowing into the wastewater within a certain range of the concentration of the anionic surfactant. As an alternative to the detergent raw material ingredient of the detergent, it became interested in a higher alcohol ethoxylate compound as a vegetable raw material derivative, and a higher alcohol ethoxylate (ethylene oxide lauryl ether ) Was a surfactant with low environmental pollution and excellent biodegradability and was used as an alternative surfactant for preventing environmental pollution. However, in order to overcome the problem of low washing power, the molecular structure of the molecular chain is modified or the mole number of ethylene oxide is diversified to improve the cleansing power. This is considered to be a nonionic surfactant suitable for a car washing machine using an excess amount of detergent Loses.

Numerous papers and patent documents are referenced and cited throughout this specification. The disclosures of the cited papers and patent documents are incorporated herein by reference in their entirety to better understand the state of the art to which the present invention pertains and the content of the present invention.

The present inventors have developed a detergent which is excellent in solubility when diluted with water and has excellent storage stability such as reduced environmental pollution and detergency as well as low temperature stability, Research efforts. As a result, the present invention has been completed by developing a liquid type highly concentrated detergent composition having the above characteristics.

Accordingly, an object of the present invention is to provide a composition for cleaning an automobile.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention, claims and drawings.

According to one aspect of the present invention, the present invention provides a composition comprising 30-98.99 wt% water; 1 to 50% by weight of a surfactant selected from the group consisting of nonionic surfactants, amphoteric surfactants and mixtures thereof; And 0.01 to 5% by weight of a sequestering agent for metal ions.

The present inventors have developed a detergent which is excellent in solubility when diluted with water and has excellent storage stability such as reduced environmental pollution and detergency as well as low temperature stability, The present inventors have developed a liquid type highly concentrated detergent composition having the above characteristics.

According to one embodiment of the present invention, the cleaning composition may comprise 45-75 wt% water, 1-50 wt% surfactant, and 0.01-1 wt% sequestering agent.

Examples of the nonionic surfactant usable in the present invention include alkylaryl polyether alcohols, alkyl polyglucosides, dimethyl lauryl amine oxide, polyoxyethylene octyl phenyl ether, polyoxyethylene lauryl ether, polyoxyethylene tri Decyl ether, polyoxyethylene sorbitan alkyl ether, polyoxyethylene, propylene copolymer, sorbitan alkyl ester, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene distearyl ether, polyoxyethylene oleyl Ether, polyoxyethylene (20) sorbitan monooleate, polyoxyalkylene alkyl ether, polyoxyalkylene alkylphenol ether, polyoxyalkylene arylphenol ether, polyoxyalkylene diisocyanate ester, polyoxyalkylene sorbitan Fatty acid esters, polyoxyalkylene alkylamines, sorbitan fatty acid esters, alkyl alcohol amines, aryl acoly And it may be an alkyl polyglucoside.

According to one embodiment of the present invention, the nonionic surfactant is selected from the group consisting of alkylaryl polyether alcohols, alkyl polyglucosides, dimethyl lauryl amine oxides, and combinations thereof.

According to one particular example, the alkylaryl polyether alcohol is a surfactant to which ethylene oxide has been added. Examples thereof include alkylaryl polyether alcohols to which 7 moles or 9 moles of ethylene oxide is added.

According to one embodiment of the present invention, the amphoteric surfactant is selected from the group consisting of cocoamphocarboxy glycinate, cocamidopropyl betaine, alkyl betaine and combinations thereof.

In one specific example, the surfactant comprises (i) an alkylaryl polyether alcohol; (ii) alkyl polyglucoside; (iii) a combination of alkylaryl polyether alcohols, alkyl betaines and dimethyl lauryl amine oxides; Or (iv) alkylaryl polyether alcohols and cocamidopropyl betaine. The cleaning composition having the surfactant exhibits excellent physical properties in terms of bubble strength (see FIGS. 1 and 2), low temperature and high temperature stability (see Table 1), refrigeration cycle stability (see Table 2) and solubility (see Table 3).

In the present invention, known metal ion sequestrants that chelate metal ions may be used without limitation.

According to one embodiment of the present invention, the sequestering agent is ethylenediamine acetic acid (EDTA). In one particular example, the EDTA is EDTA-4Na or EDTA-2Na. Such alkalized EDTA has an improved solubility in water and is advantageous for producing a detergent composition.

According to one embodiment of the present invention, the composition of the present invention may further include other adjuvants. Examples of the auxiliary agent include a dye and an antiseptic.

According to one embodiment of the present invention, the composition of the present invention can be used for car washing in an automatic car washer.

The features and advantages of the present invention are summarized as follows:

(i) The present invention provides a cleaning composition suitable for an automatic car washer detergent that generates an abundant amount of foam.

(ii) The present invention is a cleaning composition having excellent low temperature stability such as no precipitation of suspended matters at a low temperature and improved stability of a product after freezing and thawing in winter.

(iii) Currently, the automatic car washer detergent currently used occupies a space of a car wash as a 20-liter spigot, and since the 20L spigot must be directly diluted at a certain rate when the product is used, there is a problem that the ease of use is inferior. However, It is easy to use because it can be manufactured with the capacity as well as dissolves in water in a short time during dilution.

FIG. 1 is a graph showing the amount of foam according to the dilution ratio of the cleaning agent prepared in Examples 1 and 2 and Comparative Examples 1 to 3. FIG.
FIG. 2 is a graph showing the amount of foam according to the dilution ratio of the cleaning agent prepared in Examples 3 and 4 and Comparative Examples 4 and 6. FIG.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .

Example

Example 1: Manufacture of detergent for automatic car washer

66 g of purified water was placed in the main reaction vessel and heated to 40-50 DEG C using a mechanical stirrer. Then, 13.2 g of alkylaryl polyether alcohol to which 9 mol of ethylene oxide (EO) had been added to auxiliary vessel 1 Was charged into the main reaction vessel and stirred at 300 rpm while maintaining the temperature at 40-50 ° C to dissolve completely and then cooled to room temperature. 20.6 g of purified water and 0.2 g of other adjuvant (EDTA-4Na, EDTA-2Na) were completely dissolved in the auxiliary vessel 2, and the mixture was added to the main reaction vessel and stirred for 10 minutes to prepare a blue transparent liquid liquid shampoo (yield: 99% .

Example 2: Production of detergent for automatic car washer

66 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. Then, 13.2 g of alkyl polyglucoside was added to the auxiliary vessel 1 into the main reaction vessel. A cleaning agent was prepared in the same manner.

Example 3: Manufacture of detergent for automatic car washer ③

50 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. 16.5 g of alkyl aryl polyether alcohol to which EO was added in auxiliary container 1, 16.5 g of alkyl betaine and 2.97 g of dimethyl lauryl amine oxide were charged into the main reaction vessel and stirred at 300 rpm while maintaining the temperature at 40-50 캜 After completely dissolving, it was cooled to room temperature. 13.87 g of purified water and 0.16 g of other adjuvants (EDTA-4Na, EDTA-2Na) were completely dissolved in the auxiliary vessel 2, and the mixture was added to the main reaction vessel and stirred for 10 minutes to obtain a red transparent liquid foam (yield: 99%).

Example 4: Manufacture of detergent for automatic car washer ④

50 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. 16.5 g of alkylaryl polyether alcohol to which 9 moles of EO was added and 19.47 g of cocamidopropyl betaine prepared in the auxiliary vessel 1 were charged into the main reaction vessel and the rest of the preparation was carried out in the same manner as in Example 3 Respectively.

Comparative Example 1: Manufacture of detergent for automatic car washer ⑤

66 g of purified water was charged into the main reaction vessel and heated to 40-50 ° C using a stirrer. 13.2 g of alkylaryl polyether alcohol having 7 moles of EO added to the auxiliary vessel 1 was added to the main reaction vessel, and the remaining process was the same as in Example 1 to prepare a detergent.

Comparative Example 2: Manufacture of detergent for automatic car wash ⑥

66 g of purified water was charged into the main reaction vessel and heated to 40-50 占 폚 with a stirrer. Then, 6.4 g of alkylaryl polyether alcohol to which 7 moles of EO had been added to the auxiliary vessel 1 and 6.6 g of 9 moles of EO added 6.6 g of alkylaryl polyether alcohol was put into the main reaction vessel, and a detergent was prepared in the same manner as in Example 1.

Comparative Example 3: Manufacture of detergent for automatic car washer

66 g of purified water was added to the main reaction vessel and heated to 40-50 DEG C using a stirrer. Then, 6.6 g of alkylaryl polyether alcohol to which 9 moles of EO had been added and 6.6 g of alkyl polyglucoside were added to the auxiliary vessel 1 The mixture was poured into a reaction vessel, and a detergent was prepared in the same manner as in Example 1.

Comparative Example 4: Manufacture of detergent for automatic car washer ⑧

50 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. 16.5 g of alkylaryl polyether alcohol to which 7 moles of EO had been added, 16.5 g of cocoamphocarboxy glycinate and 2.97 g of dimethyl lauryl amine oxide were added to the auxiliary vessel 1, and then the same reaction procedure as in Example 3 was carried out A detergent was prepared.

Comparative Example 5: Manufacture of detergent for automatic car washer ⑨

50 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. 16.5 g of alkylaryl polyether alcohol to which 7 moles of EO had been added to the auxiliary vessel 1 and 19.47 g of alkyl betaine were put into the main reaction vessel and then a detergent was prepared in the same manner as in Example 3.

Comparative Example 6: Manufacture of detergent for automatic car washer

50 g of purified water was added to the main reaction vessel and heated to 40-50 ° C using a stirrer. 16.5 g of alkylaryl polyether alcohol with 7 moles of EO added to the auxiliary vessel 1, 16.5 g of cocamidopropyl betaine and 2.97 g of lauryl dimethyl amine oxide were charged into the main reaction vessel, A cleaning agent was prepared in the same manner as in Example 3.

Experimental Example 1. Evaluation of Foam Strength

In order to compare the foam strength test of the detergent for automatic car washes obtained in Examples 1 to 4 and Comparative Examples 1 to 6, 50 mL was received in a container conforming to KS M 2709 standard, 200 mL was dropped at a height of 90 cm for 30 seconds The amount of foam produced is shown in Fig. 1 (Examples 1 and 2 and Comparative Examples 1 to 3) and 2 (Examples 3 and 4 and Comparative Examples 4 and 6). The product bubble force concentration was determined as 33%, 4%, 1% and 0.25% by diluting the stock solution with water at a volume ratio.

As a result of the foaming tests on alkylaryl polyether alcohols and alkyl polyglucosides with 7 mole or 9 mole of EO added as the nonionic surfactant, Example 2 in which the alkyl polyglucoside was applied showed excellent results when the surfactant was used alone In Comparative Examples 2 and 3 prepared by using alkylpolyglucoside and a surfactant having 7 mole or 9 mole of EO added, Comparative Example 3 showed excellent bubble power. Alternatively, alkylaryl polyether alcohols and dimethyl lauryl amine oxides with 7 mole or 9 mole of EO added as non-ionic surfactants and amphoteric surfactants such as cocoamphocarboxy glycinate, cocamidopropyl betaine and alkyl betaine In Examples 3 and 4 and Comparative Examples 4 and 6, Examples 3 and 4 showed high bubble strength, and Comparative Example 5 had high viscosity and low solubility, and thus measurement was impossible (FIGS. 1 and 2) .

Experimental Example 2. Evaluation of Low Temperature Stability

Table 1 shows the phase stability and layer separation phenomenon at 0-2 ° C for 4 weeks in order to confirm the low temperature stability of the detergent for automatic car washes prepared in Examples 1 to 4 and Comparative Examples 1 to 6.

As a result of the low-temperature stability measurement, stability was maintained after 4 weeks or more in Examples 1-4 and Comparative Examples 3 and 6, and in Comparative Examples 1, 2, 4 and 5, (Table 1).

Experimental Example 3. Evaluation of High Temperature Stability

In order to confirm the high-temperature stability of the detergent for automatic car washes prepared in Examples 1 to 4 and Comparative Examples 1 to 6, phase stability and layer separation phenomenon were confirmed at 50 ° C. for 4 weeks, and the results are shown in Table 1 (0- 2 占 폚 low temperature stability and 50 占 폚 high temperature stability).

Cleaning agent 0-2 ℃ Low temperature stability Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 IV IV Ⅰ Ⅱ IV Example 3 Example 4 Comparative Example 4 Comparative Example 5 Comparative Example 6 IV IV Ⅰ Ⅰ IV Cleaning agent 50 ℃ High temperature stability Examples 1 to 4, Comparative Examples 1 to 6 IV

In the above table,

Ⅰ. Within 1 week of layer separation or phase change of solution,

Ⅱ. Within two weeks of phase separation or phase change of solution,

Ⅲ. Within 3 weeks layer separation or phase change of solution

IV. Indicating no layer separation or phase change for more than 4 weeks.

As a result, the compositions of Examples 1 to 4 and Comparative Examples 1 to 6 exhibited no abnormality in high-temperature stability (Table 1).

EXPERIMENTAL EXAMPLE 4. Evaluation of Refrigeration Cycle Stability

In order to confirm the refrigeration cycle stability of the detergent for automatic car washes prepared in Examples 1 to 4 and Comparative Examples 1 to 6, the product was frozen at a low temperature and melted at room temperature for 10 times to confirm the phase stability of the product, The results are shown in Table 2 (refrigeration cycle stability). The melting time of the product was visually confirmed based on 9 hours.

division Episode 2 5 times 7 times 10 times Example 1 Good Good Good Good Example 2 Good Good Good Good Comparative Example 1 Float formation Float formation Float formation Float formation Comparative Example 2 Float formation Float formation Float formation Float formation Comparative Example 3 Good Good Good Good Example 3 Good Good Good Good Example 4 Good Good Good Good Comparative Example 4 Good Good Good Good Comparative Example 5 Good Good Good Good  Comparative Example 6 Good Good Good Good

As a result of the evaluation of the refrigeration cycle stability, in the Comparative Examples 1 and 2, after freezing and thawing at room temperature for 9 hours, suspension was formed in the contents, and in Examples 1 to 4 and Comparative Examples 3 to 6, there was no abnormality in stability (Table 2).

Experimental Example 5. Evaluation of solubility

(0-2 degrees), room temperature (20 degrees) and high temperatures (50 degrees) for 24 hours to confirm the solubility of the detergent for automatic car washes prepared in Examples 1 to 4 and Comparative Examples 1 to 6 After 250 ml of water was immersed in 500 ml beaker, 3 drops of detergent solution was dropped, and the time of complete spreading was measured. The results are shown in Table 3 (dissolution rate with temperature).

Solubility measurement after 0-2 storage Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Ⅰ Ⅰ Ⅲ Ⅱ IV Example 3 Example 4 Comparative Example 4 Comparative Example 5 Comparative Example 6 Ⅰ Ⅰ IV Ⅰ Ⅰ Solubility measurement after storage at room temperature (20 ° C) Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Ⅰ Ⅰ Ⅰ Ⅰ Ⅰ Example 3 Example 4 Comparative Example 4 Comparative Example 5 Comparative Example 6 Ⅰ Ⅰ Ⅰ Ⅲ Ⅰ

In the above table,

Ⅰ. Completely dissolved within 20 seconds,

Ⅱ. Within 20-40 seconds completely dissolved,

Ⅲ. Within 40-60 seconds completely dissolved,

IV. And shows dissolution after 60 seconds elapse.

As a result of the solubility in water at different temperatures, Comparative Examples 1 to 4 were completely dissolved in the range of 40 to 60 seconds or more than 60 seconds at low temperature, and the other Examples 1 to 4 and Comparative Examples 5 and 6 were dissolved within 20 seconds. As a result of measuring the solubility of the stock solution in water at room temperature, Comparative Example 5 was completely dissolved in 60 seconds or more and completely dissolved in 20 seconds or less in the other Examples and Comparative Examples (Table 3 ).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (8)

30-98.99 wt% water; 1 to 50% by weight of a surfactant selected from the group consisting of nonionic surfactants, amphoteric surfactants and mixtures thereof; And 0.01 to 5% by weight of a sequestering agent.
The composition of claim 1, wherein the cleaning composition comprises 45-75 wt% water, 1-50 wt% surfactant, and 0.01-1 wt% sequestering agent.
2. The composition of claim 1, wherein the nonionic surfactant is selected from the group consisting of alkylaryl polyether alcohols, alkyl polyglucosides, dimethyl lauryl amine oxides, and combinations thereof.
The composition of claim 1, wherein the amphoteric surfactant is selected from the group consisting of cocoamphocarboxy glycinate, cocamidopropyl betaine, alkyl betaine, and combinations thereof. The composition of claim 1, wherein the surfactant is selected from the group consisting of alkylaryl polyether alcohols; Alkyl polyglucoside; Alkyl aryl polyether alcohols, alkyl betaines and dimethyl lauryl amine oxides; Or a combination of an alkylaryl polyether alcohol and cocamidopropyl betaine.
The composition of claim 1, wherein the sequestering agent is ethylenediamine acetic acid (EDTA).
7. The composition of claim 6, wherein the EDTA is EDTA-4Na or EDTA-2Na.
The composition of claim 1, wherein the cleaning composition is used in car washing in an automatic car washer.

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