JPH0598300A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition less adherent to a screen, a sieve or the like during granulation or classification after granulation by mixing a specified alkyl glycoside with a carbonate. CONSTITUTION:A detergent composition comprising an alkyl glycoside (a) of the formula (wherein Z is a residue of a 5-6 C reducing sugar, R is alkyl, alkenyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl or a mixture thereof; and the above alkyl or alkenyl has 8-20 C carbon atoms) and a carbonate (b). As component (a), one having a 10-18 C alkyl or alkenyl group is desirable because of its solubility, foaming properties and detergency. Examples of component (b) include sodium carbonate, potassium carbonate, sodium hydrogencarbonate, potassium hydrogencarbonate and a mixture thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a detergent capable of reducing particle adhesion such as sieving screens and screens in the production of granular detergents requiring particle size control or solid detergents using the granular detergent base. Regarding composition.

[0002]

2. Description of the Related Art A conventional laundry detergent has been prepared by spray drying a composition slurry to produce bead-shaped hollow particles having a bulk density of about 0.3 g / cc. However, such detergents have a low specific gravity and a low concentration of activator, which increases transport costs and
It requires a considerable amount of space for storage and display, and even in general households, it is difficult to store the place and it is difficult to weigh. Therefore, recently, a method for producing a high bulk density granular detergent which can be washed with a small amount of detergent has been proposed (JP-A-60-96698) and has been put on the market.

Since such a high bulk density granular detergent tends to have a broad particle size distribution due to its manufacturing method, a step of making the particle sizes uniform to some extent is provided for reasons such as increasing the commercial value. In this step, the detergent particles are sieved and passed through a screen, but if the detergent particles adhere to the screen at that time, the efficiency of the step is reduced. For this reason, there is a drawback in that it is necessary to temporarily stop the production and remove the deposits on the screen.

On the other hand, alkyl glycosides are disclosed in US Pat. Nos. 3,598,895 and 3,721,633.
No. 3,772,269 discloses alkyl polyglycosides, a method for producing the same, and a liquid detergent composition containing the same. U.S. Pat. No. 3,219,656 discloses alkyl monoglycosides and suggests the utility of other surfactants as foam stabilizers. Various polyglycoside surfactant structures and methods of making them are described in US Pat.
No. 974,134, No. 3,604,998, No. 3,839,318, No. 3,31.
No. 4,936, No. 3,346,558, No. 4,011,389, No. 4,22.
No. 3,129.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a detergent composition capable of reducing adhesion to a screen, a sieve or the like during detergent granulation or during granulation after granulation.

[0006]

The detergent composition of the present invention comprises:
It is characterized by containing the following components (a) and (b).

(A) An alkyl glycoside represented by Chemical formula 2.

Embedded image RO (R′O) y (Z) x (Z: a residue derived from a reducing sugar having 5 to 6 carbon atoms R: an alkyl group, an alkenyl group, an alkylphenyl group,
A hydroxyalkyl group, a hydroxyalkylphenyl group or a mixture thereof, wherein the alkyl group or the alkenyl group has 8 to 20 carbon atoms R ': an alkylene group having 2 to 4 carbon atoms y: 0-30 x: 1.0 ~ 1.42) (b) Carbonate.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The alkyl glycoside of the component (a) in the present invention is used as a cosurfactant with a main surfactant or another surfactant, and R in the above general formula is a direct A chain or branched alkyl group having 8 to 20 carbon atoms, an alkenyl group, a hydroxyalkyl group, or an alkylphenyl group having 8 to 20 carbon atoms in the alkyl group, a hydroxyalkylphenyl group, or a mixture thereof, which is soluble From the viewpoints of foamability, foamability, and detergency, an alkyl group or alkenyl group having 10 to 18 carbon atoms is particularly preferable.

R'is an alkylene group having 2 to 4 carbon atoms, and from the viewpoint of solubility in water, R'is particularly preferably 2 to 3 carbon atoms.

Z is a residue derived from a reducing sugar having 5 to 6 carbon atoms, the structure of which is determined by the monosaccharide or the sugar of two or more sugars used as a raw material. Examples of the raw material for Z include monosaccharides such as glucose, galactose, xylose, mannose, lyxose, arabinose, and mixtures thereof. Maltose for two or more sugars,
Examples thereof include xylopyose, isomaltose, cellipose, gentipyose, lactose, sucrose, nigerose, turanose, raffinose, getinanoose, melezitose, and mixtures thereof.

X represents a number whose average value is 0 to 30. This value regulates the water solubility and crystallinity of the alkyl glycoside. That is, the larger the value of x, the higher the water solubility and the lower the crystallinity.

Y represents the average number of bonds of Z, and the average value is 1.0 to 1.42. This value is a preferable value for obtaining the effect of the present invention.

The component (a) is added to the composition of the present invention in an amount of 0.5 to 0.5%.
It is preferable to add 20% by weight, particularly 1 to 10% by weight. Examples of the component (b) in the present invention include sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and mixtures thereof.

The component (b) is contained in the composition of the present invention in an amount of 1 to 9
It is preferable that 0% by weight, particularly 5 to 80% by weight, is blended. In addition to the above-mentioned essential components, known detergent components can be used in combination with the detergent composition of the present invention as required.

Examples of the anionic surfactant include the following. 1) a linear alkylbenzene sulfonate having an alkyl group having an average carbon number of 8 to 16; 2) an α-olefin sulfonate having an average carbon number of 10 to 20; 3) a fatty acid lower alkyl ester represented by the following chemical formula 3. Di-salt of sulfonate or fatty acid sulfonate

[0016]

[Chemical 3] (R: alkyl group or alkenyl group having 8 to 20 carbon atoms Y: alkyl group having 1 to 3 carbon atoms or counter ion Z: counter ion)

4) Alkyl sulfate having an average carbon number of 10 to 20; 5) Ethylene oxide having an average of 10 to 20 linear or branched alkyl or alkenyl groups and an average of 0.5 to 8 mol. Alkyl ether sulfate or alkenyl ether sulfate added with

6) Saturated or unsaturated fatty acid salt having an average carbon number of 10 to 22. Alkali metal salts such as sodium and potassium are usually suitable as counterions in these anionic surfactants.

Examples of the nonionic surfactant include the following. (1) An EO-addition type nonionic surfactant (alkyl ether ethoxylate) obtained by adding 4 to 25 mol of ethylene oxide (EO) on average to a primary or secondary alcohol having 8 to 18 carbon atoms.

(2) Ethylene oxide (EO) is added to a primary or secondary alcohol having 8 to 18 carbon atoms in an average of 4 to 2
5 mol of propylene oxide (PO) on average 3 to 15
An EO-PO-added nonionic surfactant added in moles.

As the aluminosilicate, a crystalline or amorphous aluminosilicate represented by the following chemical formula 4 or a mixture thereof is suitable.

## STR00004 ## x (M ₂ O or M'O) .Al ₂ O ₃ .y (SiO ₂ ) .z (H ₂ O) (In the formula, M is an alkali metal atom and M'is replaceable with calcium. Alkaline earth metal atoms, x, y and z represent the number of moles of each component, and generally x is 0.7.
˜1.5, y is 1 to 3, and z is an arbitrary number. )

The average particle size of the aluminosilicate is preferably 5 μm or less, more preferably 1 μm or less from the viewpoint of detergency. The aluminosilicate is preferably incorporated in the detergent composition in an amount of 5 to 40% by weight, more preferably 10 to 3%.
It is 0% by weight.

Further, other additives include inorganic builders such as sodium tripolyphosphate and sodium pyrophosphate; sodium citrate, sodium ethylenediaminetetraacetate, nitrilotriacetate, sodium polyacrylate, sodium acrylate-maleic anhydride. Sodium acid copolymer, calcium ion scavenger such as polyacetal carboxylate; Alkali builder such as silicate; Antifouling agent such as carboxymethyl cellulose, polyethylene glycol; paratoluene sulfonate, toluene sulfonate, xylene sulfonate A viscosity modifier such as urea, a quaternary ammonium salt, a softening agent such as bentonite, sodium sulfate, a bleaching agent, a bleaching activator, an optical brightening agent, an enzyme, a perfume, and a dye can be used.

[0024]

EFFECTS OF THE INVENTION According to the present invention, by using an alkyl glycoside and a carbonate in combination, it is possible to prevent the detergent particles from adhering to a screen, a sieve or the like during granulation or during granulation after granulation. Can improve productivity and quality of the resulting detergent particles.

[0025]

EXAMPLES In each of the following examples, screen adhesion was measured for each granular detergent composition according to the following criteria.

Screen adhesion measuring method The detergent composition was kneaded with a kneader, and 200 g of the resulting intimate mixed pellets (2 cm square) were crushed with 16 g of a crushing aid (Okada Seiko, Speed Mill ND-30 type). ) And granulate. At this time, the crusher used a crushing blade having a diameter of 15 cm and rotated at 3000 rpm in four stages of cross, and the screen used was punching metal having a diameter of 2 mm and an opening ratio of 20%. After crushing, the screen was removed and the weight was measured to determine the amount of detergent particles attached to the screen.

Here, type A zeolite or finely divided sodium carbonate was used as a disintegration aid, and screen adhesion was measured in each case.

Example 1 The detergent compositions shown in Table 1 were subjected to screen adhesion measurement, and the results are shown in Table 2.

[0029]

[Table 1]Table 1: Composition of granular detergent Detergent A B C D E F G Ingredient (wt%) Alkyl polyglycoside *¹10 10 10 5 − − 10 R = C₁₂, X = 1.2 alkyl polyglycoside *¹− − − − 10 − − R = C₁₂, X = 2.1 nonion *²− − − 5 − 10 − Zeolite (4A type) − 20 20 20 20 20 20 Sodium carbonate 70 50 40 50 50 50 − Potassium carbonate − − 10 − − − − Tinopearl CBS-X *³0.2 0.2 0.2 0.2 0.2 0.2 0.2 Water 10 10 10 10 10 10 10 Sodium sulfate Remainder Remainder Remainder Remainder Remainder Remainder * 1) Alkyl polyglycosides; RO (Z) x, Z is
Lucose residue * 2) Nonion; alkyl (C₁₃) Ether ethoxy
(Ethylene oxide average 8 moles added) * 3) Optical brightener (Ciba Geigy)

[0030]

[Table 2]

Example 2 Screen attachment measurements were carried out on the detergent compositions shown in Tables 3 and 4, and the results are shown in Table 5.

[0032]

[Table 3]Table 3: Composition of granular detergent Detergent  J K L M N O P Ingredient (wt%) Alkyl polyglycoside *¹3 3 3 1.5 3 3 3 R = C₁₂, X = 1.2 alkyl polyglycoside *¹− − − − − − − R = C₁₂, X = 2.1 α-SF-Na *²15 3 − − 13 − − AOS-K *³4 15 15 15 2 − − LAS-K *^Four-17 20 20 2 22 22 LAS-Na *^Five− − − − − − 2 AS-Na *⁶− − − − 2 10 10 AES-Na (p = 3) *⁷− − − − 1 − 2 Soap *⁸3 2 2 2 2 1 1 Nonion *⁹− − − 1.5 − − − PEG # 6000 *^Ten1 1 1 1 1 1 1 1 Zeolite (4A type) 20 20 20 20 20 20 20 Sodium silicate − − 4 4 − 4 4 Sodium carbonate 18 13 10 10 18 10 10 Potassium carbonate 5 5 5 5 5 5 5 Sodium sulfite 4 4 4 4 4 4 4 Sodium sulfate 20 10 9 9 20 13 9 Chinopearl CBS-X *¹¹0.2 0.2 0.2 0.2 0.2 0.2 0.2 Water Remaining Remaining Remaining Remaining Remaining Remaining Remaining * 1 Alkyl polyglycoside; RO (Z) x, Z is a group
Course residue * 2 α-SF-Na; carbon number 12-14 / carbon number 16
~ 18 = 3/7 ratio of saturated fatty acid methyl ester sulphate
Sodium phonate * 3 AOS-K; C₁₄~ C₁₈Α-Olefin sulfo
Potassium acid salt * 4 LAS-K; straight chain alkyl (C_Ten~ C₁₄) Benz
Potassium sulfonate * 5 LAS-Na; linear alkyl (C_Ten~ C₁₄) Ben
Sodium sulfonate * 6 AS-Na; C₁₂~ C₁₅Alkyl sulfate sodium
* 7 AES-Na (p = 3); polyoxyethylene C₁₂~
C₁₅Sodium alkyl ether sulfate (ethyleneoxy
Average 3 moles added) * 8 Soap; C₁₄~ C₁₈Saturated fatty acid sodium * 9 nonion; alkyl (C₁₃) Ether ethoxylate
G (addition of 15 mol of ethylene oxide on average) * 10 PEG # 6000; polyethylene glycol, molecular weight
= 6000 * 11 Optical brightener (Ciba Geigy)

[0033]

Table 4 Table 4: Composition of granular detergent detergent Q R S T component (wt%) alkylpolyglycoside ^{* 1 - - 3 - R =} C 12, x = 1.2 alkylpolyglycosides * ¹ - 3 - - R = C ₁₂ , x = 2.1 α-SF-Na * ² 15 15 − − AOS-K * ³ 4 4 15 − LAS-K * ⁴ − − 20 22 LAS-Na * ⁵ − − − − − AS-Na * ⁶ − − − 10 AES-Na (p = 3) * ⁷ 3 − − − Soap * ⁸ 3 3 2 1 Nonion * ⁹ − − − 3 PEG # 6000 * ¹⁰ 1 1 1 1 Zeolite (4A type) 20 20 20 20 Kei Sodium acid − − 10 4 Sodium carbonate 18 18 − 10 Potassium carbonate 5 5 − 10 Sodium sulfite 4 4 4 4 Sodium sulfate 20 20 18 8 Tinopearl CBS-X * ¹¹ 0.2 0.2 0.2 0.2 Water Remainder Remainder Remainder * 1 Alkyl polyglycoside RO (Z) x and Z are glucose residues * 2 α-SF-Na; carbon number 12-14 / carbon number 16
To 18 = 3/7 sodium sulfonate of a saturated fatty acid methyl esters in the ratio of * 3 AOS-K; potassium α- olefin sulfonate _{C 14 ~C 18 * 4 LAS-} K; linear alkyl (C ₁₀ -C ₁₄ ) potassium benzenesulfonic acid * 5 LAS-Na; linear alkyl (C ₁₀ -C ₁₄₎ sodium benzenesulfonate * 6 AS-Na; C ₁₂ sodium alkyl sulfate _{~C 15 * 7 AES-Na (} p = 3) ; polyoxyethylene C ₁₂ ~
C ₁₅ sodium alkyl ether sulfate (addition of 3 mol of ethylene oxide on average) * 8 soap; sodium saturated fatty acid of C _{14 to} C ₁₈ * 9 nonion; alkyl (C ₁₃ ) ether ethoxylate (addition of 15 mol of ethylene oxide on average) * 10 PEG # 6000 Polyethylene glycol, molecular weight = 6000 * 11 Optical brightener (Ciba Geigy)

[0034]

[Table 5]

Example 3 Each of the components shown in Tables 1 and 3 above was granulated by a vertical or horizontal stirring granulator and then sieved to prepare detergent particles. Detergents A to D and J to P having the same detergent composition showed little adhesion to the sieve, and the same effect was observed.

Example 4 Detergent particles having the compositions shown in Tables 1 and 3 above were prepared according to Example 3, and then 89 parts by weight of detergent, 10 parts by weight of sodium percarbonate, 1 part by weight of tetraethylenediamine (TAED), and enzyme. 0.2 parts by weight of the mixture (alkaline protease, lipase, cellulase) was powder-mixed to obtain a detergent. This detergent was excellent in detergency.

Claims (1)

[Claims] 1. (a) Alkyl glycoside represented by Chemical Formula 1 RO (R'O) y (Z) x (Z: Residue derived from reducing sugar having 5 to 6 carbon atoms R: Alkyl group , Alkenyl group, alkylphenyl group,
A hydroxyalkyl group, a hydroxyalkylphenyl group or a mixture thereof, wherein the alkyl group or the alkenyl group has 8 to 20 carbon atoms R ': an alkylene group having 2 to 4 carbon atoms y: 0-30 x: 1.0 ~ 1.42) (b) A carbonate composition is contained in the detergent composition.