KR100952642B1 - Liquid cleaner composition improved a durability for cleasing - Google Patents

Abstract

The present invention relates to a liquid detergent composition having improved cleaning durability by efficiently controlling solubility and diffusivity and reducing the amount of cleaning components that are not used for cleaning in the cleaning process. Surfactant: 15 to 30 parts by weight; (b) nonionic surfactant or zwitterionic surfactant: 10 to 20 parts by weight; (c) inorganic salts: 0.01 to 2 parts by weight; The weight ratio (b / a) of the b component and a component is characterized in that the range of 30/70 ~ 50/50.

The liquid detergent composition having improved cleaning sustainability according to the present invention configured as described above contains an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant in a specific ratio, and contains an inorganic salt, while maintaining the transparency of the liquid cleaner. In addition, it is a useful invention to provide an excellent liquid detergent having excellent low temperature stability as well as improved dissolving power and improved cleaning durability.

Detergents, surfactants

Description

Liquid cleaner composition improved a durability for cleasing

The present invention relates to a cleaning composition having excellent cleaning power against oily contamination of oils, fats, foods, and the like stained on tableware, cooking utensils, etc. The present invention relates to a liquid detergent composition which reduces the amount of wasted cleaning components and improves cleaning durability.

Detergency and foaming power are usually discussed as the most basic performance required for dishwashing liquid detergent compositions. It is generally said that there is no universal relationship between foaming power and detergency, and detergents with good foaming power do not necessarily have good detergency. However, consumers tend to prefer rich and rapid foamability because they tend to judge the cleaning power with the loss of bubbles at the time of washing, and also tend to prefer rich and rapid foamability in terms of palatability. On the other hand, the concentrated liquid cleaner diluted in water at the time of use, although a high concentration ratio of the detergent is good economical, in the case of such a high concentration is difficult to dissolve and dissolve well in water, there are many disadvantages that the stock solution is gelled. In addition, even in a homogeneous system, turbidity may occur in the diluent liquid, and the viscosity may be significantly lowered, that is, less than 100 cps at 20 ° C. It is difficult and difficult to control the amount of liquid.

In order to solve the above disadvantages, a technique is known in which a linear alkylbenzene sulfonate and a fatty acid alkanolamido are mixed in a technique of a concentrated liquid cleaner having a low viscosity change during dilution. 5-320698, Japanese Patent Laid-Open No. 7-118695, Japanese Patent Laid-Open No. 7-316589, Japanese Patent Laid-Open No. 8-3587, and Japanese Patent Laid-Open No. 8-319500. However, the above-described known technique is not sufficient cleaning power or foaming power, there is a problem that precipitation or turbidity occurs when stored for a long time at a low temperature of about -5 ℃ to deteriorate the commerciality. In addition, there is a problem of poor color stability and discoloration in heat or light. In addition, the technique of mixing alkyl ethoxy sulfate, amine oxide and fatty acid alkanol amido is described in Korean Patent Publication No. 1995-425, but this composition has a high content of AES and requires an excessive amount of ethanol, a phase stabilizer, to be diluted. Without direct use, there is a disadvantage in that the low solubility is poor.

Accordingly, the present invention is to provide a liquid detergent composition that is suitable for use with excellent dissolving power and foaming power as a transparent liquid dish detergent, satisfies the consumer's economic preferences and enables efficient detergent use.

In addition, the present invention is to provide a liquid detergent composition having excellent phase stability by improving the dissolution rate by efficiently controlling the dissolution rate to reduce the amount of loss lost without being used for washing.

Liquid detergent composition of the present invention for achieving the above object;
About the composition,

(a) anionic surfactant: 15 to 30 parts by weight;

(b) nonionic surfactant or zwitterionic surfactant: 10 to 20 parts by weight;

(c) an inorganic salt: 0.01 to 2 parts by weight;

The weight ratio (b / a) of the b component and a component is characterized in that the range of 30/70 ~ 50/50.

According to another configuration of the present invention, the weight ratio of the b component and a component is preferably in the range of 35/65 to 50/50, more preferably in the range of 35/65 to 40/60 do.

As the anionic surfactant which is one component of the present invention, a sulfonate-based, sulfate-based, or other anionic surfactant may be used.

Among the anionic surfactants of the a-component of the present invention, an alkyl group is linear and an S-type surfactant in which a hydrophilic group is bonded to a terminal (hereinafter referred to as P) and a hydrophilic group is bonded in the middle of an alkyl group chain ( Hereinafter, the weight ratio of S) is in the range of S / P = 10/90 to 60/40, and more preferably in the range of 30/70 to 50/50.

Examples of the P-type surfactant include fatty alcohol sulfates having 10 to 18 carbon atoms (AS), fatty alcohol ethoxy sulfates having 10 to 16 carbon atoms (AES) (ethoxylation degree of 1-6), and alpha olefins having 12 to 16 carbon atoms. Sulfonate salts and the like can be exemplified, where the salts are sodium, potassium, magnesium and ammonium salts and the like.

In addition, the S-type surfactant may be exemplified by linear alkyl benzene sulfonate having 10 to 14 carbon atoms (LAS), paraffin sulfonate having 10 to 16 carbon atoms (SAS), and the like, wherein the salt is sodium, potassium, magnesium, Ammonium salts and the like.

As the other ionic surfactant of the present invention (hereinafter referred to as N), fatty acid cocoyl amide (CDE), alkyl ethoxylate (AE), alkylglycoside (APG), etc. may be used, and a zwitterionic interface. Active agents (hereinafter referred to as O) include lauryl dimethyl amine oxide (AO, alkylbetaine (AB) having 10 to 14 carbon atoms, cocoyl amido propyl betaine (CAPB) containing an amido group in the alkyl group), and sulfo betaine ( SB) and the like can be used.

And the weight ratio of the nonionic surfactant (N) and the zwitterionic surfactant (O) which is the b component of the present invention is in the range of O / N = 20/80 ~ 70/30, more preferably 30/70 ~ It is characterized by the range of 50/50.

Next, the inorganic salt may include all of NaCl, Na ₂ SO ₄ , MgCl ₂ , MgSO _4, etc., and may be blended in an amount of 0.01 to 2 wt% depending on the termination of the cleaning agent.

 Other solvents (such as lower alkanols, diols and polyols with 1 to 4 carbon atoms, ethers and amines, such as ethanol, ethylene glycol, propylene glycol, dipropylene glycol, etc.) and short-chain alkyl benzene sulfonates, as required; (SXS, STS) may be used, and other additives are appropriate amounts as necessary in the range that conventional additives such as pigments, preservatives, extracts, antibacterial substances, skin moisturizers, pH adjusters and the like do not impair the effects of the present invention. It is possible to mix.

 Hereinafter, the present invention will be described in more detail with reference to Examples, but the scope of the present invention is not limited only to these Examples.

Example 1-3 and Comparative Example 1-3

To prepare the detergent compositions of Examples 1-3 and Comparative Examples 1-3 with the composition shown in Table 1 below. The detergent thus obtained was tested for the remaining amount of detergent and the cleaning power as in the following Experimental Example.

Experimental Example 1.

Detergent Residual Method

The same amount of water is filled with the same amount of tap water 10L. Here, 5 g of each liquid detergent composition prepared according to each Example and Comparative Example was impregnated in a sponge (polyurethane 8 cm x 8 cm x 4 cm) as described above. With the sponge in the tank, lightly rub the sponge so that the sponge absorbs enough water. A sponge with sufficient water is allowed to float on the water and left for 24 hours. After leaving for 24 hours, the sponge is taken out and dried at 105 ° C. for 24 hours to measure the residual amount of detergent. In the case of the residual amount of detergent (%), the standard is based on the weight of 5 g of each detergent after drying at 105 ° C. for 24 hours, and the residual amount of detergent is calculated according to the following equation.

Detergent Residue (%) = (Detergent Residue) / (105 ° C Dry Residue for 5g Detergent) X 100

Experimental Example 2.

Foaming speed and detergency test (plate sponge method)

Uji: Soybean oil = 8: 2 Mix 1 ml of oil contamination, apply evenly, and leave for 30 seconds. This soiled dish was used as a reference soil dish. The polyurethane sponge was cut to a size of 8 cm X 8 cm X 4 cm and used as a reference sponge. Put the sponge of the above-mentioned specification on a clean dish, and accurately weigh 1 g of each detergent prepared according to the above Examples and Comparative Examples to 2 decimal places with an electronic balance. And tap the 25g of the tap with the dropper to impregnate the sponge. In this way, the reference dish is washed with a sponge impregnated with each detergent in the following manner to test the foaming speed and the cleaning power.

Rate of foaming: Carefully transfer the sponge, which has been measured with water and detergent, to the reference contaminated dish with oil above. Then, the experimenter repeatedly holds the sponges with both hands and presses the foam five times. This operation is repeated twice over the front surface of the sponge, and the foam is inverted twice by inverting the sponge. At this time, the degree of foaming is good (O): bubbles cover 70% or more of the dish after a predetermined number of foams, normal (△): bubbles cover less than 40-70% of the dish after a predetermined number of foams, Poor (X): After a predetermined number of foaming, the bubble was evaluated as poor satiety with less than 40% of the dish, and the results are shown in Table 1 below.                     

Dish washing power evaluation: After the foaming at the foaming rate evaluation was performed to wash the standard dish. In other words, the contamination dish was stored in a water bath containing the tap water of 25 ℃ and taken out one by one to proceed with the washing. The cleaning solution and bubbles generated during the washing process were lost and only the sponges were moved to the next contamination dish. Table 1 shows the number of dishes washed with the end point of the cleaning power as the end point.

                                                             weight(%) division Example Comparative example One 2 3 One 2 3 (a component) Anionic surfactant LAS 4 2 - 3 3 - AS - - 5 - - - AES 11 10 9 13 14 17 AOS - 3 5 3 3 6 SAS 6 6 4 4 4 4 (Component B) Nonionic and Amphoteric Surfactants CDE 8 8 5 6 5 3 AE - - - 2 2 - AO 3 3 3 2 4 3 Betaine 2 2 3 2 - 2 (c component) Inorganic salt MgSO ₄ One - One - 0.5 - NaCl - 1.5 - - - One ethanol 5 5 5 5 5 5 water Remainder Remainder Remainder Remainder Remainder Remainder Detergent Residue (%) 82 81 72 54 52 48 Foaming rate (initial bubble) ○ ○ ○ ○ ○ ○ Cleaning power (number of plates) 16 16 15 12 13 12

 As shown in Table 1, the composition of the present invention can be seen that the residual amount of detergent is excellent in controlling the diffusibility and the cleaning holding power, foaming speed and cleaning power is also excellent.

 The liquid detergent composition having improved cleaning sustainability according to the present invention configured as described above contains an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant in a specific ratio, and contains an inorganic salt, while maintaining the transparency of the liquid cleaner. In addition, it is a useful invention to provide an excellent liquid detergent having excellent low temperature stability as well as improved dissolving power and improved cleaning durability.

Claims (5)

About the composition, (a) 15 to 30 parts by weight of anionic surfactant; (b) 10 to 20 parts by weight of the nonionic surfactant and the zwitterionic surfactant; And (c) 0.01 to 2 parts by weight of inorganic salts, The anionic surfactant is a P-type surfactant (hereinafter referred to as P) in which an alkyl group is linear and a hydrophilic group is bonded to the terminal, and an S-type surfactant (hereinafter referred to as S) in which a hydrophilic group is bonded in the middle of an alkyl group chain. / P = 10/90 to 60/40 in a mixed ratio, the P-type surfactant is a fatty alcohol sulfate of 10 to 18 carbon atoms (AS), fatty alcohol ethoxy sulfate of 10 to 16 carbon atoms (AES) (Ethoxylation degree is 1-6) and an alpha olefin sulfonate salt having 12 to 16 carbon atoms alone or a mixture thereof, and the S-type surfactant is a straight alkyl benzene sulfonate having 10 to 14 carbon atoms (LAS And paraffin sulfonate (SAS) having 10 to 16 carbon atoms, or a mixture thereof. The liquid detergent composition of claim 1, wherein the weight ratio (b / a) of the b component and the a component is in a range of 30/70 to 50/50. delete The nonionic and zwitterionic surfactant according to claim 1, wherein the weight ratio of the nonionic surfactant (hereinafter referred to as N) and the zwitterionic surfactant (hereinafter referred to as O) is 0 / N = 20/80 to 70 / 30. A liquid detergent composition having improved cleaning sustainability, characterized in that it is in the range of 30. The liquid detergent composition of claim 1, wherein the inorganic salt is at least one compound selected from the group of NaCl, Na ₂ SO ₄ , MgCl ₂ , and MgSO ₄ .