JPH02151695A - Powdery kitchen detergent composition - Google Patents

Abstract

PURPOSE:To obtain the title composition which enables immersion cleansing and has improved detergency for various contaminants by mixing a branched anionic surface active agent, two kinds of inorganic or organic electrolytes having specified ions as the counter ion, and a solid binder. CONSTITUTION:The title composition is obtained by mixing 5-40wt.% branched anionic surface active agent (A) (e.g. a sodium alkylbenzenesulfonate), an inorganic or organic electrolyte (B) having Na<+> or K<+> as the counter ion (e.g. Na2SO4), 0.5-30wt.% binder (C) which is solid at ordinary temperature (e.g. a polyethylene glycol having an average molecular weight of 6,000), and an inorganic or organic electrolyte (D) having Mg<2+> as the counter ion (e.g. MgSO4) in an amount sufficient to provide a weight ratio of C to D of (10 to 1):(1 to 5) so that the molar ratio of component A to the total of Na<+> and K<+> in the composition is 1/4 or less and the pH of the composition when diluted 150-fold is 5.0 to 9.0.

Description

[Detailed description of the invention] Storehouse! The present invention relates to a powder detergent composition for the kitchen that does not require any mechanical force and exhibits its cleaning effect just by soaking it.

BACKGROUND OF THE INVENTION With major changes in lifestyle, more and more housewives are using their time for housework efficiently, and one way to do this is to soak and wash dishes.

However, with traditional liquid dish detergents.

Only a small amount of Na+ salt and K0 salt, which have an interfacial tension lowering effect, can be blended, and it has been impossible to remove various stains from tableware just by soaking.

On the other hand, powder type kitchen detergents are also commercially available as soaking type kitchen detergents, but the reality is that the combination of activator, electrolyte, and P)I is inappropriate, and sufficient cleaning effects cannot be obtained. It is.

The purpose of the present invention is to provide a kitchen powder cleaning composition that exhibits sufficient cleaning power against various types of dirt and that can be washed by soaking.

! The kitchen powder cleaning composition of the present invention has the following (a):
Contains components (b), (C) and (d), and meets the conditions of ■ to ■ below, i.e., the total amount of component (a) and Na + ions contained in the entire composition of 1 ion. The molar ratio should be 1/4 or less.

■ The blending ratio of component (C) and component (d) is (by weight) (
c)/(d) -10/1 to 115, and ■ pH of the composition when diluted to 1/150 is 5.0 to 9.0.
It is characterized by satisfying the following conditions.

(,) Branched anionic surfactant: 5 to 40% by weight.

(b) An inorganic or organic electrolyte with Na+ or 4 as a counterion.

(c) 80.5 to 30% by weight of a binding binder that is solid at room temperature.

(d) An inorganic or organic electrolyte with Mg''+ as a counterion.

The present invention will be explained in detail below.

(a) Preferred specific examples of the branched anionic surfactant include those represented by the following general formulas (1) to (V), which may be used alone or in combination of two or more. In the structural formula below, n, m≧0, R = saturated or unsaturated hydrocarbon group, and M = 1/dM when gold metal polyvalence (d) is respectively represented.

1) Alkylbenzenesulfonate (LAS) 2) Vinylidene olefin sulfonate (VO8) 3) Inner olefin sulfonate (IO8) 4) Dialkylsulfosohadaate (AOT) 0
...(IV) Shoulder♂ 5) Paraffin sulfonate (ps) (a) Branched anionic surfactant contains 5 to 4
It is blended in an amount of 0% by weight, preferably 10 to 30% by weight. If the blending amount is less than 5% by weight, the cleaning power will not be sufficient;
If it exceeds 0% by weight, granulation becomes difficult and is not appropriate.

By using a branched anionic surfactant as the surfactant, a composition with high permeability can be obtained. Furthermore, the surface tension can be lowered by blending an inorganic or organic electrolyte (Na", ni") as component (b). In addition to this, by controlling the pH of the composition to 5.0 to 9.0, high cleaning power against various types of dirt can be achieved.

(b) Inorganic and organic electrolytes with + as counter ions include sodium sulfate, potassium sulfate, sodium chloride, crystalline sodium silicate, sodium hydrogen carbonate,
There are many types such as sodium carbonate, sodium citrate, and sodium malate. These may be used alone or in combination of two or more.

Component (b) Na'' and electrolyte are component (a) component branched anionic surfactant and Na contained in the entire composition.
The molar ratio of the total amount of + ions and 4″ ions is 1
It is blended in an amount of 74 or less, preferably 1/10 or less, thereby reducing the surface tension of the branched anionic surfactant. If this molar ratio is larger than 1/4, the amount of Na''K+ ions will be insufficient and the interfacial tension cannot be lowered sufficiently, and if the molar ratio is 1/i
Even if the Na + electrolyte is blended so that the Na + electrolyte becomes smaller than 0, the interfacial tension lowering effect is already saturated because the Na + electrolyte is too large.

The binding binder of component (c) is one that granulates each component of the kitchen cleaning agent to form an excellent powder (granular) composition, which is effective in terms of storage stability, especially in preventing caking. . (
c) As a binding binder for component, an average molecular weight of 100
0 to 20,000 polyethylene glycol (P.E.G.
#1000 to #20000), polyoxyethylene alkyl ether (average number of added moles of ethylene oxide: 10 or more), etc., which are solid at room temperature are used. Such a binding binder is used when mixing and granulating components of a composition, and since it is solid at room temperature, it is not sticky and can prevent particles from adhering to each other and solidifying during storage.

Component (c), the binding binder, is present in one composition of the present invention.
．． It is blended in an amount of 5 to 30% by weight, preferably 3 to 20% by weight. If the amount is less than 0.5% by weight, it will not be effective as a binder, while if it exceeds 30% by weight, the particle strength will drop significantly and no anti-caking effect will be obtained.

However, with the addition of (C) a binding binder, (
There is a phenomenon in which the complex of component a) and component (b) becomes hydrophilic and its detergency decreases. On the other hand, M g of component (d)
The 2+ electrolyte makes it hydrophobic, improves its affinity with dirt substances, and prevents a decrease in detergency against various dirts.

(d) Mg"+ as electrolyte, MgSO4゜Mg
Clie M g (No3)i, M g NH4Cl
Inorganic and organic electrolytes such as a+M g (CHz COO)i are used.

The amount of (d) Mg"+electrolyte incorporated into the composition of the present invention depends on the amount of component (C), and the weight ratio is (c)/(
d) = 10/1 to 115, preferably 3/1 to 1/
The range is 3. If this blending ratio is larger than 1071, no effect will appear, while if it is smaller than 115, M
g The cleaning power decreases due to the increase in hardness.

The kitchen powder cleaning composition of the present invention has a pH of 5.0 to 9.0, preferably 6.0 when dissolved 150 times in water.
It is adjusted so that it becomes ~8.5. p) If I is less than 5.0, compound stains such as mayonnaise cannot be removed. On the other hand, when the pH exceeds 9.0, the ability to remove oily dirt is significantly reduced.

This pH adjustment is performed by adjusting the amount of neutral salt, acidic salt, and alkaline salt used as the electrolyte of component (b) or the electrolyte of component (d). In addition, if necessary, acids such as boric acid, citric acid, and malic acid, salts other than Na salts, K salts, and Mg salts, alkalis, etc.
It may be added as an H adjuster.

The cleaning composition of the present invention comprises the above (a), (b),
(c).

In addition to the essential component (d), builders such as talc, kaolin, white carbon, zeolite, TiO, enzymes, fragrances, and bleaching agents, if necessary.

Bleach activators, pigments, etc. can be added.

The kitchen powder cleaning composition of the present invention can be obtained by, for example, granulating each component by spray drying, rolling granulation, extrusion granulation, or the like. Further, if necessary, the particles may be sized, or enzymes, bleaching agents, etc. may be mixed into powder.

According to the present invention, (a) a branched anionic surfactant, (
b) contains an inorganic or organic electrolyte with Na'', + as a counter ion, (C) a binding binder, and (d) an inorganic or organic electrolyte with Mg2+ as a counter ion, and (a
) ingredient and the molar ratio of Na'' and + in the entire composition,
(C), (d) Mixing ratio of both components and pH at dilution
By identifying.

It strengthens its penetration and removal power against various types of dirt, and exhibits excellent cleaning power against various types of dirt just by soaking it.Moreover, (c)
Also when using a binding binder as a component to improve the powder properties of the cleaning composition.

This excellent detergency can be maintained.

Therefore, soaking and washing can remove various types of dirt from dishes in a short time, and the rest can be finished by simply rinsing them, freeing up time for cleaning after the kitchen to be used for other tasks. It becomes possible to use the device efficiently6. Also, the time spent in contact with the cleaning liquid or water is shortened, and the worry of getting rough hands can be reduced.

EXAMPLES Hereinafter, the effects of the present invention will be specifically explained with reference to Examples, but prior to this, the evaluation bias method used in the Examples will be described.

1 ′ ′ 60■ 30g each of soybean oil and beef tallow specified in the Japanese Pharmacopoeia
After dissolving in chloroform of Q, oil red 0.1g
Add and mix well to prepare the stain solution. A glass plate is contaminated by immersing it in this solution, and air-dried at a temperature of 25°C for 30 minutes or more to remove chloroform and prepare a piece of dirt (amount of dirt 60 to 80 g/piece).

The kitchen powder cleaning compositions of Examples and Comparative Examples were heated at 25°C.
The active agent concentration was added to 700mM, 3”DH water to give a concentration of 400ρp, and 3 pieces of 6 pieces of dirt were added to the water.
Remove after soaking for 0 minutes.

The product was air-dried and weighed, and the oil removal rate after washing was calculated using the following formula to determine the detergency.

-W Cleaning power (%) = (1-wl-w,) x 100 W0 Weight of glass plate W: Weight of glass plate after contamination W2: Weight of glass plate after washing and air drying 2 To'l゛°force protein , spread mayonnaise, which is a lipid complex, evenly on a glass plate and air-dry it at a temperature of 25°C for 30 minutes or more to create a dirt piece (stain amount 140-160 mg/1
Sheet).

The kitchen powder cleaning compositions of Examples and Comparative Examples were heated at 25°C.
Activator concentration 400ppm in 700mfi, 3°DB water
Add 3 pieces of 6 pieces of dirt to each of them so that
After being immersed for 0 minutes, the sample was taken out, air-dried and weighed, and the composite dirt removal rate after washing was calculated using the following formula to determine the cleaning power.

-W Cleaning power (%) = (1-w, -w, ) xto
.

W, weight of the Nigarasu plate W,: Weight of the glass plate after contamination W2: Weight of the glass plate after washing and air-drying Large - 凰 - 舅 Ｇｕｒｉｎｅ - Components listed in 1, excluding enzymes and fragrances After kneading, the mixture was granulated using a speed mill to obtain a powder having an average particle size of 500 μm. This was powder-blended with a small amount of white carbon and an enzyme and flavored to obtain a kitchen powder cleaning composition.The detergency against oily stains and composite stains was measured and the results are shown in Table 1. Indicated. Note that pH adjustment was performed using malic acid, Na, or Go.

(Margin below)

Claims (1)

[Claims] 1. (a) Branched anionic surfactant: 5 to 40% by weight
, (b) an inorganic or organic electrolyte with Na^+ or K^+ as a counterion, (c) a binding binder solid at room temperature: 0.5 to 30% by weight, and (d) Mg^2^+ as a counterion. Inorganic or organic electrolyte: weight ratio (c)/(d) = 10/1 to 1/5, and component (a), the branched anionic surfactant, and Na^ in the entire composition. The molar ratio to the total amount of + ions and K^+ ions is 1/4 or less, and the pH when diluted to 1/150
1. A powder cleaning composition for kitchen use, characterized in that the ratio is in the range of 5.0 to 9.0.