JPS5938299A - Abrasive-containing liquid detergent composition - 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 The present invention relates to a liquid cleaning composition containing an abrasive;
It has excellent cleaning and polishing power that is especially gentle on hand skin.
Furthermore, the present invention relates to a liquid detergent composition that also has excellent dispersion stability of abrasive materials.

BACKGROUND ART Conventionally, liquid detergents for kitchens such as vegetable and dishwashing have been mainly composed of compositions that utilize only the detergent power of surfactants. This type of cleaning agent has excellent cleaning power for cleaning vegetables and stains such as liquid oil, semi-solid oil, etc., but it is also effective for cleaning food that has been burnt or dried and solidified due to food cooking, solid oil, baking oil, etc. Their cleaning power is relatively weak, and granular, powdered, or liquid polishing cleansers are usually used as cleaning aids to clean tableware and cooking utensils that are contaminated with these substances.

On the other hand, various liquid cleaning compositions containing water-insoluble abrasives have recently been proposed. These cleaning agents are preferable because they have both normal cleaning power for removing non-adhesive stains and abrasive power for removing adherent stains. If the content of abrasive is increased in order to improve the quality of the product, there is a disadvantage that the abrasive powder contained therein tends to be more likely to damage the dyed object and the abrasive powder contained therein settles out during storage. If a composition is made that emphasizes dispersion stability in order to improve this, foaming properties and detergency will inevitably deteriorate. For this reason, there has been a demand for the development of an abrasive-containing cleaning composition that has excellent cleaning properties such as abrasive power, detergency, and foaming ability, and can maintain stability over a long period of time.

As a result of various studies to meet this demand, the present inventors found that a detergent containing a specific anionic surfactant and a water-insoluble abrasive that contains a certain type of clay has foaming properties. It has been found that the present invention is a cleaning agent that has excellent cleaning properties, foaming properties, and rinsing properties, and also has good dispersion stability for abrasive powder, and based on this knowledge, the present invention has been completed.

That is, the present invention relates to (A) (a substituted ammonium group) and (b) an alkyl ether sulfate having 1 carbon number.
The weight ratio (a
)/(b) is 10 to 40% by weight of anionic surfactant components combined in a ratio of 〃 to 〃, (B) Mohs with an average particle size of 1 to 40μ and a content of particles of 50μ or more is 40% by weight or less 3 to 30% by weight of a water-insoluble abrasive having a hardness of 2 to 8; (C) 0.1 to 5% by weight of clay mainly composed of smectite and/or double-chain clay mineral; and (D) The present invention provides a liquid detergent composition containing 2 to 10% by weight of a hydrotrope selected from the group consisting of lower allyl sulfonates and lower alcohols.

One of the anionic surfactants used in the liquid cleaning composition of the present invention is an anionic surfactant represented by the above general formula (1), in which the alkyl group R has 10 to 15 carbon atoms. It may be linear or branched as long as it is a straight chain.

However, if the number of carbon atoms is 9 or less, the surface activity decreases and the cleaning performance is weak, whereas if the number of carbon atoms is 16 or more, the foaming power of the composition becomes weak, which is not preferable. Furthermore, if the number of carbon atoms in R is outside the above range, no synergistic effect on cleaning performance can be expected in combination with the other anionic surfactant. In addition, the number n of moles of ethylene oxide added in the formula must be in the range of 1 to 7, but if the average number of moles of ethylene oxide added in the alkyl ether sulfate is within the above range, the It shows excellent cleaning performance, especially (b)
Desirable synergistic cleaning effects can be achieved through combination with other ingredients. Furthermore, M in the formula is an alkali metal such as potassium or sodium, ammonium or ammonium substituted with monoethanol, diethanol or triethanol, and a salt of two or more of the above cations is used as an alkyl ether sulfate. Mixed use is also possible.

In addition, component (b) used in combination with component 0 in the composition of the present invention is an alkylbenzene sulfonate having an alkyl group having 10 to 14 carbon atoms, and includes an alkali metal such as sodium and potassium, magnesium, etc. alkaline earth metal, ammonium, and lower alkanol-substituted ammonium salts. If the anionic surfactant component (b) has an alkyl group having a carbon number outside the above range, the cleaning performance will be poor and no excellent synergistic effect can be obtained in combination with the component (a).

The above (a) component and (b) component are in a weight ratio of (a)/(b).
)-% to % is important, and within this range a remarkable synergistic effect can be obtained with detergency and foaming power. Outside the above range, a synergistic cleaning effect will not be obtained and an excellent cleaning composition will not be obtained.

In addition, the components (a) and (b) need to be contained in a total amount of 10 to 40% by weight in the liquid cleaning composition, and 1
If it is less than 0% by weight, the cleaning power will be low, and if it exceeds 40% by weight, the dispersion stability of the water-insoluble abrasive as component (B) will decrease, which is not preferable.

The water-insoluble abrasive used as component (B) in the composition of the present invention has a Mohs hardness of 2 to 8, and has an average particle size of 1 to 40 μm and a content of particles of 50 μm or more in an amount of 40% by weight.
These are as follows. Those with a Mohs hardness of less than 2 have a small abrasive power and do not provide sufficient abrasiveness, while those with a Mohs hardness of more than 8 are undesirable because they tend to damage the object to be dyed. Examples of materials that have such a Mohs hardness and can be suitably used as abrasives include agate, calcite, quartz,
Mention may be made of alumina, diatomaceous earth, perlite, feldspar, aluminosilicate, calcium phosphate, calcium carbonate, and the like. These may be used alone or in combination of two or more.

In the present invention, such a water-insoluble inorganic abrasive is used with its average particle size adjusted within the range of 1 to 40 microns. Fine particles with a particle size of less than 1 μm have good dispersion stability, but their abrasive power is extremely low, so it is preferable to remove them as much as possible. Also, particles with a particle size of 60 μm or more have excellent abrasiveness, but It is preferable to remove such coarse particles, since they not only easily damage equipment such as stainless steel and aluminum, but also settle to the bottom of the liquid cleaning agent, impairing dispersion stability. In the composition of the present invention, particles having an average particle size of 1 to 40 .mu.m are used so that the proportion of particles having a particle size of 50 .mu.m or more is 40% by weight or less. If the proportion of particles with a particle size of 50 μm or more exceeds 40% by weight, the dispersion stability of the liquid cleaning agent will be extremely deteriorated, and there will be a greater tendency to damage the equipment to be cleaned, which is not preferable.

The water-insoluble abrasive component (B) thus prepared is added to the composition in an amount of 3 to 30% by weight.

If it is less than 3% by weight, the polishing power will be insufficient, and if it exceeds 30% by weight, the detergency will be relatively lower and the stability will also be lowered, which is not preferable.

In addition, the component (0) used in the composition of the present invention is a clay whose main component is smectite or a multi-chain structure type clay mineral, and examples of such clay minerals include montmorillonite, nontronite, Vermiculite, attapulgite, sepiolite, etc. may be mentioned. These clay minerals may be used alone or in combination of two or more. This (D) component is contained in the cleaning composition of the present invention in a range of 0.1 to 5% by weight. These clays impart thixotropic properties to the liquid composition and are highly desirable for stabilizing the dispersed water-insoluble abrasive over time. If the content is less than 0.1% by weight, the anti-settling ability of the abrasive will be weak when it is left still, and if it exceeds 5% by weight, the viscosity will be much higher than the desired viscosity during use of the composition, resulting in poor usability. This is not preferable because it lowers the temperature.

A particularly desirable content is 0.2 to 1% by weight.

Further, a lower aryl sulfonate or a lower alcohol is added to the liquid detergent composition of the present invention as a hydrotrope. Component (D) used in the present invention includes sodium salts of sulfonic acids substituted with lower alkyl groups, such as toluenesulfonic acid and xylenesulfonic acid, and lower fatty acids such as methanol, ethanol, and propanol. Group alcohols are included. Component (D) is added to the composition of the present invention in an amount of 2 to 10% by weight. If the content is less than 2% by weight, the dispersion stability of the liquid detergent will deteriorate, which is not preferable, and if it exceeds 10% by weight, the dispersion stability will similarly decrease significantly, which is not preferable. A desirable content is 3 to 6% by weight.

The liquid detergent composition of the present invention, which contains each of the above components (A) to (D) in specific range amounts, is formulated into a liquid using water as a medium, and has a viscosity suitable for use, for example, 1 to 50 Po.
ISE (20 rpm).

The liquid detergent composition of the present invention is extremely easy to use, eliminates the drawbacks of previously known detergents of this type, and has excellent foaming properties, detergent power, abrasive power, and dispersion stability. It is an abrasive cleaning agent with high practical value.

Next, the present invention will be explained in more detail with reference to Examples.

The various performances of the liquid cleaning compositions in each example were measured and evaluated as follows.

(1) Detergent power 10g of pharmacopoeial soybean oil and 10g of pharmacopoeial beef tallow 60g of chloroform
ml and add 0.0ml of oil into this. Prepare the stain solution by adding Ig and mixing well. Next, a glass plate is contaminated by immersing it in this stain solution, and air-dried at 25 DEG C. for 30 minutes or more to remove chloroform and prepare a stain test piece (stain amount: 20-23 .mu./piece). Six of these test pieces were washed with a washing solution 70 containing 0.15% by weight of a predetermined detergent composition.
3 at a rotation speed of 250 rpm at 25°C.
Stir and wash for a minute, then air dry.

At this time, the weight of the test piece before and after washing was measured, and the cleaning power was calculated according to the formula (where, Wo is the weight of the glass plate, Wl is the weight of the test piece before washing, and W2 is the weight of the test piece after washing). (%) and evaluate based on the following criteria.

A: Detergent power of 70% or more B: Detergent power of 50% or more and less than 7.0% C: Detergent power of 30% or more and less than 50% D: Detergent power of less than 30% (2) Foaming power Pour 3 liters of an aqueous solution containing a concentration of 15% by weight at a temperature of 25°C into a vat with a diameter of 30 m and a depth of 12 cm, soak a sponge in it, squeeze it 10 times, and repeat the restoration process to make it foam. .5
Use this sponge to scrub the surface of the dirty dishes 10 times and the back 5 times, count the number of dishes washed until the foam height drops to 3mm, and evaluate according to the following criteria. .

A: 12 pieces or more B: 8-11 pieces C: 5-7 pieces D: 4 pieces or less (3) Abrasive power Pour a mixture of 0.25 g of lard and 10 ml of soybean oil into a frying pan (diameter 26 cm) and brown for 3 minutes. The resulting stains were rubbed 30 times with a nylon nonwoven fabric containing 10 g of water and 5 g of a predetermined detergent composition, and evaluated according to the following criteria.

○---Removes most of the stains ×---Removes less than 50% of the stains △---Intermediate state between ○ and × (4) Oral stability Pour 100 ml of the specified detergent composition into a cylindrical container with a diameter of 25 mm. After placing the container in the container and sealing it tightly, store it at 35°C for one month and observe the state of separation of the upper transparent liquid.

In addition, 100 ml of the specified detergent composition was put into a glass bottle, the glass bottle was sealed, frozen at -10°C, and then thawed at 25°C, which was repeated three times, and then the state of separation of the upper layer of transparent liquid was observed.

These results are evaluated according to the following criteria.

〇---In all tests, liquid separation is rarely observed or only slightly observed. .

×--- Significant separation is observed in either test.

The component abbreviations used on each side have the following meanings.

Among the above components, LAS (1) and (2) are outside the scope of the present invention.

Abrasive material ■ Mineralogical main component: α-quartz (chemical main component: SiO2), particle content of average particle size 2 μm Mohs hardness 7.50 μ or more, approximately 0.5% by weight Abrasive material ■ Mineralogical main component : α-quartz (SiO2), average grain size 40μ, Mohs hardness 7
, 50μ or more, approximately 35% by weight Grinding efficiency ■ Mineralogical main component: α-quartz (SiO2) r Average grain size 10μ, Mohs hardness 7
, 50μ or more, approximately 10% by weight Abrasive ■ Mineralogical main component: α-quartz (SiO2), average particle size 80μ, Mohs hardness 7
, 50μ or more, approximately 80% by weight Abrasive ■ Mineralogical main components: Zeolite (SiO2/Al2O3), average particle size 5μ,
Mohs hardness 4.5, particle content of 50 μ or more approximately 0.5% by weight Abrasive ■ Main mineralogical component: Calcite (chemical main component CaCO3), average particle size 20
μ, content of particles with a Mohs hardness of 3.50 μ or more is about 20% by weight Among the above components, the abrasive material (①) is outside the scope of the present invention.

Clay ■Product name: Metaloid (manufactured by Monsanto).

Main clay mineral: hectorite Clay ■Product name: Kunivia G (manufactured by Kunimine Industries).

Main clay mineral: Montmorillonite clay ■Product name: Attagel 50 (manufactured by Engelhard Minerals & Chemicals) Main clay mineral: Attapulgite Examples 1 to 5 and Comparative Examples 1 to 4 (18 weight of LAS as a component) %, 10% by weight of abrasive ■ as component (B), 1% of clay ■ as component (D)
Weight%, sodium toluenesulfonate and ethanol as component (D) are each 2% by weight, and component (a) is 7% by weight.
preparing an aqueous liquid cleaning composition containing (a)
Various performances were measured and evaluated for each composition with different types of ingredients. The result is (a) the first one along with the type of component.
Shown in the table. In this composition, component (a)/component (b)
) is 2.8/7.2, and the total content of the same components is 25% by weight.

Examples 6 to 15 Using 2% by weight of sodium toluenesulfonate and 2% by weight of ethanol as component (D), component (a) and (b)
Component (a) ~ so that the total of the components is 25% by weight
Compositions of the present invention were prepared with different types and contents of component (c), and the performance of each was measured and evaluated. The results are shown in Table 2 along with the constituent components. In addition, the number of each component in a table|surface is weight% in a liquid cleaning composition.

Examples 16-23 7% by weight of AES■ as component (a) and 18% by weight of LAS■ as component (b)C(a)/(b)=2.8/
7.2, (a) + (b) = 25% by weight], (B)
Various liquid cleaning compositions were prepared in which the types and contents of the components (C) and (D) were varied, and their various performances were measured and evaluated.

The modified components and results are summarized in Table 3.

Comparative Examples 5 to 17 In liquid cleaning compositions consisting of components (a) to (D), when any of the components is outside the invention,
Or, various compositions were prepared in which the content was missing or deviated from the specified content range, and the various performances of each composition were evaluated. The results are shown in Table 4 along with the composition.

Incidentally, matters that deviate from the conditions of the composition of the present invention are marked with * to facilitate understanding.

As is clear from the results in the above tables, the liquid detergent composition of the present invention has excellent abrasive power as well as detergent power and foaming power, and also has extremely good dispersion stability of abrasives, etc. in the liquid agent. However, compositions that do not satisfy all of the requirements of the present invention have extremely low performance in at least one of them and cannot be used as an abrasive liquid cleaning composition. It can be seen that this is inappropriate for practical use.

Patent applicant Lion Corporation Akira Isomorphic Agent

Claims (1)

Scope of Claims: (A) (a) General formula (wherein R is a linear or branched alkyl group having 10 to 15 carbon atoms, n is an integer of 1 to 7, M is an alkali metal, ammonium or an alkanol-substituted ammonium group); and (b) an alkyl ether sulfate having 1 carbon number.
The weight ratio (a
10 to 40% by weight of anionic surfactant components combined in such a proportion that )/(b) becomes A-False (B) Mohs hardness with an average particle size of 1 to 40μ and a content of particles of 50μ or more at 40% by weight or less 3 to 30% by weight of a water-insoluble abrasive having a particle diameter of 2 to 8; (C) clay whose main component is smectite and/or double-chain clay minerals;
1 to 5% by weight, and (D) 2 to 10% by weight of a hydrotrope selected from the group consisting of lower allyl sulfonates and lower alcohols.