Abstract:
The present invention relates to a detergent composition which facilitates hand-washing and excellent in the dissolubility of the granules and the dispersibility comprising 5 to 60% by weight of a phosphate builder and 10 to 60% by weight of a surfactant, wherein the detergent composition has a bulk density of from 600 to 1200 g/L, and a flow time of 10 sec or less, and has a total summation of a product of a mass base frequency Wi of each group of classified granules obtained by classifying detergent granules by using a classifier and a dissolving rate Vi of each group of classified granules specified in the present invention, which satisfies the following formula (1): SIGMA (Wi•Vi) ≥ 90(%) and wherein a mass base frequency of the classified granules having a size of less than 125 mu m is 0.10 or less, wherein the classifier comprises sieves each having a sieve-opening 2000 mu m, 1410 mu m, 1000 mu m, 710 mu m, 500 mu m, 355 mu m, 250 mu m, 180 mu m, and 125 mu m, and a receiver, determined under the measurement conditions; and a process for preparing the detergent composition.
Abstract:
A detergent having a high bulk density is produced. Provided are: a granular base for surfactant supporting which has a surfactant content of 0 to 10 wt.% and is obtained, for example, by spray-drying a slurry comprising (A) a water-soluble polymer, (B) a film formation inhibitor, and (C) a water-soluble salt other than the inhibitor; a process for producing the granular base; a particulate detergent which comprises 100 parts by weight of the granular base and 1 to 100 parts by weight of a surfactant supported thereon and has an average particle diameter of 150 to 750 mu m and a bulk density of 500 g/L or higher; and a detergent composition comprising the particulate detergent. The granular base and the particulate detergent have excellent solubility and a sufficient bulk density and further have extremely high oil absorption. Hence, they are effective in obtaining a detergent composition excellent in detergency and reduced in caking and component oozing.
Abstract:
A granulated detergent composition which comprises a surfactant, a water-insoluble inorganic material and a water-soluble salt, and has a bulk density of 500 g/L or more, a variance of falling speed for a powdery material (V) of 1.0 or less, a penetration pressure (P) of 80 gf/cm or less, a DELTA falling ratio (D) of 14 % or less, and the K value represented by the formula: K = P x exp(0.135 x D) of 30 to 230, wherein P and D represent a penetration pressure (gf/cm) and a DELTA falling ratio (%), respectively; and a method for producing the composition. The granulated detergent composition is excellent in easiness in measuring it by a spoon type tool and distributing it. The granulated detergent composition provides a detergent composition which is easy to scoop when scooped with a spoon type measuring tool, is easy to measure, is markedly reduced in the amount of insoluble materials remaining around cloths after washing due to the easiness thereof in dispersing it in a washing machine, can provide an extremely good feeling in handling to a user thereof and exhibits a feeling of smoothness; and an article for cleaning comprising the detergent composition.
Abstract:
A simple process for producing, in high yield, detergent particles which contain a surfactant composition and the average particle diameter and particle size distribution of which fluctuate little with varying amounts of the surfactant composition incorporated and can be easily controlled by selecting appropriate base granules. The process comprises the step (I) of mixing 100 parts by weight of base granules as a surfactant support which have an average particle diameter of 150 to 500 mu m, a bulk density of 400 g/L or higher, and a particle strength of 50 kg/cm or higher [ingredient (a)] with 15 to 100 parts by weight of a surfactant comoposition [ingredient (b)], under such conditions that the ingredient (a) does not substantially collapse, to obtain a mixture; and the step (II) of mixing 100 parts by weight of the mixture with 5 to 100 parts by weight of a fine powder while substantially maintaining the state of the ingredient (a) containing the ingredient (b). The detergent particles thus obtained have a degree of particle growth of 1.5 or lower and a bulk density of 500 g/L or higher.
Abstract:
A high-density detergent composition which has excellent detergency even when used in a washing machine operated at a low power, and which is excellent not only in particle solubility and dispersibility but in solubility in laundering by hand. The composition contains 10 to 60 wt.% surfactant composition comprising an anionic surfactant and a nonionic surfactant in a ratio of 4/10 to 10/0 by weight and has a bulk density of 600 to 1,200 g/L. It satisfies the relationship S(Wi.Vi)=95 (%), wherein Wi is the weight frequency of each of the groups of particles obtained by classifying the detergent particles with a classifier comprising sieves respectively having opening sizes of 2,000, 1,410, 1,000, 710, 500, 355, 250, 180, and 125 µm and receiver pans and Vi is the solubility of each group of particles as determined under the following measurement conditions. The weight frequency of the group of particles smaller than 125 µm is 0.1 or lower. [Measurement conditions: 1.000±0.010 g of a sample is added to 1.00±0.03 L of water having a temperature of 5±0.5°C and a hardness of 4° DH. The mixture is stirred in a 1-L beaker for 120 seconds at a rotational speed of 800 rpm. The residual particles are taken out by filtration with a standard sieve provided for in JIS Z 8801.]
Abstract:
A mixer comprising agitating members (4) and flow direction changing members (7), both of which are provided to revolve together with a rotating shaft (3) which can be rotated and driven on its axis in a vessel (2) containing a substance being mixed, and crushing members (6) provided on an inner peripheral portion (2a') of the vessel (2) facing an outer peripheral portion of the rotating shaft (3) so as to be rotatingly driven. The agitating members (4) are arranged to be spaced diametrically from the outer peripheral portion of the rotating shaft (3) and have agitating surfaces for moving the substance being mixed, toward the outer peripheral portion of the rotating shaft (3). The flow direction changing members (7) are disposed between agitating surfaces thereof and the outer peripheral portion of the rotating shaft (3) to be spaced diametrically from the inner peripheral portion (2a') of the vessel (2) and have surfaces (7d') for changing the flow direction of the substance being mixed from a direction toward the outer peripheral portion of the rotating shaft (3) to a direction toward the inner peripheral portion (2a') of the vessel (2).
Abstract:
Detergent particles comprising a non-soap, anionic surfactant and an inorganic salt not detected by X-ray diffractometry, wherein the molar ratio of the inorganic salt to the surfactant is (0.1 to 1.0):1; and a process for preparing detergent particles comprising the step of dry neutralizing a liquid acid precursor of a non-soap, anionic surfactant with a water-soluble solid alkaline inorganic material, wherein an inorganic acid is used in an amount of 0.1 to 1.0 mol per mol of the liquid acid precursor of the surfactant. The detergent particles are featured by having very low particle tackiness and more pores, and the use of the same results in the formation of a detergent composition with a small diameter and a high bulk density in a high yield.
Abstract:
A high-density granulated detergent composition for clothes which is prepared by blending a non-soap anionic surfactant with a crystalline alkali metal silicate in such a way as to inhibit the contact of the surfactant with the silicate as completely as possible and which exhibits high detergency even when used in a reduced amount and does not suffer from any lowering in the detergency even after long-term storage. This composition is one comprising (A) a non-soap anionic surfactant, (B) a crystalline alkali metal silicate and (C) a sequestering agent other than the component (B) and having a bulk density of 0.7 to 1.2 g/cm , and is characterized in that the amount of the component (A) is 10 to 50 wt.% and the total amount of the components (B) and (C) is 30 to 80 wt.% with the (B) to (C) weight ratio being from 1:15 to 5:1, that at least part of the component (B) is incorporated into a particulate builder comprising a binder and, if necessary, an aluminosilicate salt, and that the content of the component (A) in the builder is less than 10 wt.%.
Abstract:
The present invention provides a powdery plant vitalizer and a powdery plant vitalizer composition which are resistant to the oozing of effective components and from which effective components are easily dispersed when the vertilizer is in contact with water to give vitality to plants. Specifically, the present invention relates to a powdery plant vitalizer containing a particle containing at least one compound (A) selected from a specific monohydric or dihydric alcohol (A1), a specific ether compound (A2), a specific fatty acid or its ester compound (A3), a specific organic acid derivative (A4) and a glycerin derivative (A5), an emulsifying-dispersing agent (B) and water-soluble sugars (C) or a particle containing the component (A) and water-soluble sugars (C') having an emulsifying and dispersing function, the particle having a structure in which the component (A) is dispersed in the form of an oil droplet in the particle, to a method of producing the powdery fertilizer and to a powdery plant fertilizer composition containing at least one selected from these powdery plant fertilizers and a fertilizer component.
Abstract:
method for producing granules for carrying a surfactant comprising a step of preparing a solution or a slurry containing a water-soluble polymer and a water-soluble salt to provide a first liquid preparation, a subsequent step of subjecting the first liquid preparation to a treatment for increasing the number of particles of the water-soluble salt, to thereby prepare a second liquid preparation having an increased number of particles as compared to the number of particles of the water-soluble salt in the first liquid preparation, and another step of subjecting the second liquid preparation to spray drying; granules for carrying a surfactant obtainable by using the method; high bulk density detergent particles using such granules for carrying a surfactant; and a method for producing such detergent particles. The method for producing granules can be employed for providing particles for carrying a surfactant which are excellent in carrying ability (carrying capacity/holding power) and particles for carrying a surfactant which are excellent in absorbing characteristics (carrying speed). Detergent particles having excellent detergency, good quality and the like can be produced with good efficiency, by carrying a liquid surfactant composition on the above particles for carrying a surfactant.