KR100354901B1 - Detergent composition having low-foaming characteristics - Google Patents

Abstract

The present invention is a detergent composition comprising a surfactant as a cleaning component, 10 to 30% by weight of a nonionic surfactant containing fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol and 3 to 20 anionic surfactant It relates to a low foaming detergent composition comprising a weight percent, wherein the fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol is contained in 25 to 75% by weight in the total of the nonionic surfactant.

Description

Detergent composition having low-foaming characteristics

The present invention relates to a low foaming detergent composition. More specifically, the present invention is used for washing clothes, etc., and relates to a low foaming detergent composition excellent in rinsing property.

Abundant foam in laundry has been considered one of the desirable properties of detergents. However, large amounts of foam do not necessarily show good cleaning power. When washing with the existing detergent, bubbles are formed during washing, so that they do not turn off well, and surfactants remain in the clothes even when rinsing, and bubbles continue to be generated, resulting in a long rinsing time and a large amount of water. In fact, in many real-world laundry conditions, large amounts of foam are often more of a disadvantage than a benefit. In particular, when a user rinses after washing, a large amount of bubbles continuously generated requires a lot of rinsing, consuming a large amount of water, electricity, and time. This energy and excessive consumption is a burden on consumers, and in fact, the inconvenience of having to rinse several times even when washing hands.

In order to solve this problem, a technique for suppressing air bubbles using a defoaming agent has been widely used in laundry detergents. Typical antifoaming agents include polar organic compounds, mineral oils, silicones, and the like, and examples of their application include U.S. Patent Nos. 05540856, 05375459, Japanese Patent Application Laid-Open No. 6-154513, and European Patent (EP) 0887097. Described. However, if a lot of bubbles continue to occur during the rinsing there was no clear measures. These antifoams are prominent in the early stage of washing, but since they are mostly washed off during rinsing, there is a limit to the continuous defoaming effect.

Therefore, the large amount of bubbles generated continuously when consumers rinse is mistaken for a large amount of detergent residues even though the actual surfactant concentration is already insignificant, which requires several rinses, resulting in too much There was a problem that consumes a large amount of water, electricity, and time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a low foaming detergent composition having a sufficient washing power for washing and having a small initial generation amount of bubbles, which is defoamered in a short time and has excellent rinsing property.

1 (a) to 1 (d) are phase diagrams showing changes in physical properties according to the composition of a detergent composition, and FIG. 1 (a) is a view showing the composition of a range showing excellent cleaning power with respect to a surface in dark color 1 (b) is a drawing showing the composition of the range showing the excellent cleaning power with respect to the blend in dark color, Figure 1 (c) is a drawing showing the composition of the range showing the low bubble amount in the wash water in dark 1 (D) is a diagram showing the composition of the range showing the low bubble amount in the rinsing water in dark color.

※ Explanation of code for main part of drawing

A: a fatty acid salt having 10 to 18 carbon atoms,

B: fatty alcohol polyoxyethylene glycol having 12 to 14 carbon atoms and 7 mol of ethylene oxide adduct;

C: fatty alcohol polyoxyethylene propylene glycol having 12 to 14 carbon atoms and 8 moles of alkylene oxide adduct

The low foaming detergent composition which concerns on this invention is 10 to 30 weight% of nonionic surfactant containing fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol in the detergent composition containing surfactant as a washing | cleaning component. And an anionic surfactant 3 to 20% by weight.

The fatty alcohol polyoxyethylene propylene glycol may be a nonionic surfactant represented by the following Chemical Formula 1, and the oxo alcohol polyoxyethylene propylene glycol may be a nonionic surfactant represented by the following Chemical Formula 2.

In Formula 1, n is an integer of 3 to 15, m is an integer of 1 to 6, R is an alkyl group having 10 to 16 carbon atoms,

In Formula 2, n is an integer of 3 to 15, m is an integer of 1 to 6, R and R 'is an alkyl group having 9 to 18 carbon atoms.

The fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol may be included in 25 to 75% by weight of the entire nonionic surfactant.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, when used in addition to the existing general surfactant, the addition of the new surfactant, fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol, in addition to the excellent cleaning power of the detergent composition, low foaming and improved rinsing properties It is characterized by having a back.

That is, the present invention contains 10 to 30% by weight of nonionic surfactant, 3 to 20% by weight of anionic surfactant, and must include fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol as the nonionic surfactant. It is characterized by one point.

As the fatty alcohol polyoxyethylene propylene glycol used in the present invention, compounds represented by the following Chemical Formula 1 may be used, and compounds represented by the following Chemical Formula 2 may be used as the oxo alcohol polyoxyethylene propylene glycol.

Formula 1

In Formula 1, n is an integer of 3 to 15, m is an integer of 1 to 6, R is an alkyl group having 10 to 16 carbon atoms,

Formula 2

In Formula 2, n is an integer of 3 to 15, m is an integer of 1 to 6, R and R 'is an alkyl group having 9 to 18 carbon atoms.

In addition, as the nonionic surfactant, fatty alcohol polyoxyethylene glycol of Formula 3, alkylphenol polyoxyethylene glycol of Formula 4, fatty acid alcoholamide of Formula 5 or alkylamine oxide of Formula 6 may be used. Can be.

In Formula 3 n is an integer of 5 to 15, R is an alkyl group having 10 to 16 carbon atoms.

In Formula 4, n is an integer of 5 to 15, R is an alkyl group having 6 to 12 carbon atoms.

In Formula 5, n is an integer of 1 or 2, m is an integer of 0 or 1, R is an alkyl group having 11 to 17 carbon atoms.

In Formula 6, R is an alkyl group having 8 to 16 carbon atoms.

If the nonionic surfactant content in the total detergent composition is less than 10% by weight, there may be a problem that the cleaning power is lowered, if it exceeds 30% by weight may be difficult to manufacture.

In addition, more specifically, the ratio of the fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol in the total content of the nonionic surfactant may be included in an amount of 25 to 75% by weight.

If the ratio of the fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol is less than 25% by weight of the total non-ionic surfactant, there is a problem that the rinsing performance is lowered, if more than 75% by weight oily pollution There may be a problem that the detergency for the deterioration. This result is specifically shown by the phase diagram shown in FIGS. 1 (a) to 1 (d), which can be easily understood by those skilled in the art.

As the anionic surfactant used in the present invention, linear alkylbenzenesulfonate (RC ₆ H ₄ -SO ₃ Na; R is an alkyl group having 6 to 14 carbon atoms), linear alkylsulfonate (R-SO ₄ Na; R is Alkyl group having 8 to 16 carbon atoms), fatty acid salt (R-CH ₂ -COONa; R is alkyl group having 8 to 16 carbon atoms), alkanesulfonate (R ₁ = CH-SO ₃ Na; R ₁ is alkyl group having 11 to 18 carbon atoms) ), An alpha olefin sulfonate (R-CH = CH- (CH ₂ ) _n -SO ₃ Na; n is an integer of 1 to 15, R is an alkyl group having 7 to 12 carbon atoms) may be mentioned. have.

In the case where the anionic surfactant is used in excess of 3% by weight, the rinsing property is improved, but when used in an amount less than 3% by weight, there may be a problem that the effect is insignificant. In addition, when the anionic surfactant is used in excess of 20% by weight, there may be a problem that the foaming power is excessively increased in the wash water is not preferable, and the effect of improving rinsability may also be insignificant.

On the other hand, zeolites (eg, sodium aluminosilicate A, P type), carbonates (for example, sodium carbonate (Na ₂ CO ₃ ) or sodium hydrogen carbonate) may be used as builders to enhance the cleaning power of the aforementioned surfactants. NaHCO ₃ ), silicates (eg, layered crystalline α-Na ₂ SiO ₃ or β-Na ₂ SiO ₃ ), phosphates (eg, orthophosphoric acid, pyrophosphoric acid, tripolyphosphoric acid, tetrapoly Phosphoric acid or salts thereof), phosphonates (e.g., diethylenetriaminepentamethylenephosphonate, aminotrimethylenephosphonate, 1-hydroxyethylene-1, 1-diphosphonate), nitrile Rotriacetic acid or its salt, ethylenediaminetetraacetic acid or its salt, and carboxymethylcellulose, polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, poly Krylic acid or salts thereof, copolymers of maleic acid and vinyl ether, salts or sulfates thereof, and the like can be used, and these are well known to those skilled in the art and can be used commercially, as well as the contents of the entire detergent composition. It can be understood that it is so known that it can be easily controlled within a range that does not affect the nonionic surfactant content of the invention.

In addition to the above-mentioned components, the detergent composition of the present invention may further contain a fluorescent brightener (for example, stilbene, biphenyl, pyrazoline, fumarin, or quinolone), an enzyme (for example, a protease, amylase). , Lipase or cellulase), antifoaming agents (eg, fatty acids, silicones, paraffin waxes) and the like may be used in an amount of 0.5 to 10% by weight. If the content of the additive is less than 0.5% by weight, the performance of the additive cannot be exhibited. If the content of the additive is 10% by weight or more, the price is expensive and uneconomical. The use and content of such additives are also readily understood by those skilled in the art.

The present invention having the above components as a component has a low foaming property and excellent rinsing properties as compared to conventional detergent formulations.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

Examples 1 to 4 and Comparative Examples 1 and 2

To prepare a detergent composition with the ingredients and contents of Table 1 below.

Example Comparative Example One 2 3 4 One 2 Fatty alcohols Polyoxyethylene glycol ⁽¹⁾ 10 10 10 8 20 5 Oxo Alcohol Polyoxyethylene Propylene Glycol ⁽²⁾ 9 0 0 0 0 0 Fatty Alcohol Polyoxyethylene Propylene Glycol ⁽³⁾ 0 7 7 7 0 0 Alphaolefin Sulfonate ⁽⁴⁾ 0 0 5 5 0 10 Alkylbenzenesulfonates ⁽⁵⁾ 0 0 0 0 0 10 Fatty Acids ⁽⁶⁾ 4 4 4 4 4 5 Zeolite 30 30 30 30 30 25 Sodium Carbonate (Na ₂ CO ₃ ) 42 44 39 41 41 40 Other Additives ⁽⁷⁾ 5 5 5 5 5 3 Antifoam 0 0 0 0 0 2 Sum 100 100 100 100 100 100 Surfactant Composition Content (%) 23 21 26 24 24 30 unit ; kg (1) fatty alcohol polyoxyethylene glycol; Carbon number 12-14 of an alkyl group, 7 mol of ethylene oxide average addition moles (2) oxo alcohol polyoxyethylene propylene glycol; C12-C14 and R 'of an alkyl group are C1 alkyl, ethylene oxide average addition mole number 7 mol (3) fatty alcohol polyoxyethylene propylene glycol; C12-C14, ethylene oxide + propylene oxide average addition mole number 8 mol (4) alpha olefin sulfonate of an alkyl group; C12-C18 (5) alkylbenzene sulfonate of an alkyl group; C12-16 (6) fatty acid salt of an alkyl group; C10-C18 (7) other additive of an alkyl group; Incense, Enzyme, Fluorescent Whitening Agent, Defoamer, Filler (Defoamer is indicated separately)

Using the detergent compositions prepared according to the composition of Table 1 above was applied to the cleaning power evaluation test, bubble / anti-foaming evaluation test and rinsability evaluation test as follows.

(1) detergency evaluation test

Washing machine; Terg-O-Tometer

Washing temperature; 20 ℃

Washing water; Hardness 80ppm Ca ⁺⁺ , 20ppm Mg ⁺⁺

Bath ratio; 4.5 g / ℓ (dirty cloth / washing water)

Fouling; EMPA Art No. 101

(Olive oil, carbon black / cotton)

Detergent concentration; 0.67 g / ℓ

evaluation ; Converting cleaning power to Comparative Example 1 as 100

The test results are shown in Table 2 below.

(2) Bubble / foaming evaluation test

Evaluation equipment; Rotary Foam Tester

Evaluation temperature; 20 ℃

Evaluation condition; 60 rpm, 40 revolutions

Detergent solution; 100 ml

Test container; 250ml end capped graduated cylinder

100 ml of detergent solution was filled in the cylinder, and the height of the bubbles was measured immediately after stopping and after 60 seconds, thereby evaluating the bubble / foaming ability. Detergent concentration is 0.67g / ℓ to be regarded as wash water, detergent concentration is considered to be rinsing water to 0.045g / ℓ (the concentration of the wash water diluted to 15 times the water) and rinse water bubbles / The defoaming was evaluated. The test results are shown in Table 2 below.

(3) rinsing evaluation test

First, washing was performed under the following washing conditions.

Washing conditions

washer ; LG turbo drum washing machine (capacity 10 kg)

Quantity ; 58ℓ

Detergent amount; 50 g

clothing ; 2.4 kg (20 pieces of towels)

After washing by the above method, rinsing was performed under the following conditions, and rinsing performance of rinsing one, two or three times was evaluated according to the following criteria.

Rinsing Condition

Quantity ; 68ℓ

Rinsing time; 5 minutes, 2 times 5 minutes, 3 times 5 minutes

Rinsing evaluation criteria

A; If no bubbles remain at face value

B; 1/2 bubble remains at face value

C; If bubbles remain throughout the face

The test results are shown in Table 2 below.

division Example Comparative Example One 2 3 4 One 2 One Detergency (%) 98 99 95 99 100 99 2 Bubble / Antifoam Washing water Immediately (mm) 36 42 39 39 48 62 60 seconds later (mm) 6 28 20 18 40 50 Rinse water Immediately (mm) 7 10 7 7 10 18 60 seconds later (mm) 0 2 One 0 4 15 3 Rinseability 1 time A B B A C C Episode 2 A B A A B B 3rd time A A A A B B

As can be seen from the results of Table 2, the detergent compositions according to the present invention (Examples 1 to 4) have the same level of cleaning power as compared to the conventional detergent compositions (Comparative Examples 1 and 2) and the initial generation amount of bubbles is small The foam disappears as soon as possible and bubbles disappear, and the rinsing performance of the washing machine showed excellent rinsing.

Therefore, according to the present invention, there is an effect of providing a low-foaming detergent composition having a sufficient washing power for washing and having a small initial generation amount of bubbles and being defoamered within a short time, and excellent in rinsability.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (3)

delete In the detergent composition containing a surfactant as a cleaning component, Fatty alcohol polyoxyethylene propylene glycol represented by the following general formula (1) or 10 to 30% by weight of nonionic surfactant essentially containing oxo alcohol polyoxyethylene propylene glycol represented by the following formula (2) and anionic surfactant 3 to 20% by weight A low foaming detergent composition comprising a, Formula 1 N is an integer of 3 to 15, m is an integer of 1 to 6, R is an alkyl group having 10 to 16 carbon atoms: Formula 2 In Formula 2, n is an integer of 3 to 15, m is an integer of 1 to 6, R and R 'is an alkyl group having 9 to 18 carbon atoms. The method of claim 2, Said fatty alcohol polyoxyethylene propylene glycol or oxo alcohol polyoxyethylene propylene glycol is comprised of 25 to 75 weight% of the said nonionic surfactants, The said low foaming detergent composition characterized by the above-mentioned.