KR970004982B1 - Process for preparation of detergent composition with fabric softener - Google Patents

Abstract

Detergent containing a fabric softener is produced by (1) making slurry shape by mixing polyethylene glycol, fluorescent brightener, fatty acid soap and softening component to nonion system surfactant of more than one species, (2) making particles by the absorption of mixture and grinding after putting in the above slurry shape to high speed rotating assembler that builds elements such as sodium carbonate, sodium sulfate and sodium silicate injected, (3) on the surface of particle, coating water insoluble inorganic and mix additive like ferment.

Description

Manufacturing method of fabric softener-containing detergent

The present invention relates to a method for producing a powdery fabric softener-containing detergent. More specifically, the present invention mixes the cleaning component with polyethylene glycol as a coagulation component, the optical brightener as an additive, the fatty acid soap as a defoaming component, and a flexible component to make a slurry phase, and put it into a high-speed rotary granulator into which a builder is put and absorb it. It is characterized by high particle density, excellent fluidity and solubility, cleansing ability, rinsing property, softness and antistatic effect. It relates to a method for producing a fabric softener-containing detergent improved.

In general, the softening method of the garment is to obtain a softening effect by the addition of a liquid or powdered fabric softener in the last rinse during the washing process of the clothing or by inputting a fabric softener formulated as a nonwoven fabric, sheet, etc. in the clothes dryer. Methods and the like are known. In particular, the low temperature washing method and the natural drying method is mainly made of a liquid softener in the rinsing step. However, liquid fiber softeners have the advantages of excellent flexibility and good fragrance.However, it is inconvenient to put them in the last rinsing, and when used together with detergents, cationic surfactants or zwitterionic surfactants and detergents, which are flexible components, are used. Due to the interaction with the anionic surfactants in the cleaning power and softening effect is both reduced.

Therefore, research has been conducted on the fabric softener-containing detergent without such inconvenience. Such prior arts include USP3862058, USP4062647, USP4472287, GB2160886, EP0011340, GB3306902, EP0376398, USP4659496, and the like. To give the softening effect by using a special type of silicone oil, etc., which has a softening effect, or to package the non-woven fabric with a detergent and a soft component that does not dissolve at low temperature, and after the washing is finished, put the clothes into the clothes dryer and dry the clothes dryer. It is a technology related to a special type of fabric softener-containing detergent designed to absorb water insoluble cationic surfactant or zwitterionic surfactant, which is a flexible component, and to exhibit a softening effect.

The fabric softener-containing detergents described above form bentonite-cationic surfactant conjugates using bentonite with ion-exchange ability to reduce the formation of conjugates between anionic surfactants and cationic or zwitterionic surfactants, thereby minimizing the detergency and softening effect. It has the characteristic to

However, it is impossible to fundamentally prevent the mutual adverse effects between anionic surfactants and cationic and amphoteric surfactants in the cleaning solution, and the effective content of bentonite, an insoluble substance, is more than 10% by weight, which increases the price and contaminates when adsorbed onto clothing. There is a problem. In addition, most of the cationic and zwitterionic surfactants exhibit poor solubility and dispersibility at low temperatures, and thus exhibit flexibility in high temperature washing and clothes dryers. However, washing and flexibility in low temperature washing and natural drying methods are difficult. In addition, the silicone oil having a softening effect is less than the cationic surfactant or zwitterionic surfactant in the effect and has the disadvantage that the price is also expensive.

Therefore, as a method for solving such a problem, a technique is known in which the main cleaning component is used as a nonionic surfactant to remove the adverse effects between the cationic surfactant and the nonionic surfactant to exert a washing power and a softening effect. (EP379398A ₂ , JP1132692A ₂ ) These techniques are applicable to liquid detergents, but most nonionic surfactants and cationic surfactants have poor thermal stability at high temperatures, and after drying, nonionic surfactants are in the liquid state inside the powder detergent. Since there is a problem such as outflow to the outside because it is present, there is a disadvantage that it is difficult to apply to the conventional powder detergent produced through the countercurrent spray drying process.

Therefore, it is very difficult to mix and granulate nonionic and cationic surfactants without going through a conventional countercurrent spray drying process. In particular, when the cationic surfactant is not in powder form, but in liquid or slurry form, the particle fluidity of the prepared detergent is bad, and the solidification phenomenon occurs, in which lumps are entangled with each other, thereby degrading the value as a detergent.

Accordingly, the present inventors have studied to solve the above-mentioned problems. As a result, the liquid-absorbing surfactant and the liquid-, slurry- and powder-type cationic surfactants are absorbed so that they do not flow out. A fabric softener prepared by preparing a cation-nonionic surfactant slurry using a coagulant of a nonionic surfactant, absorbing it in a build component, mixing, pulverizing and granulating, and then coating an appropriate water-insoluble inorganic substance on the surface of the particle. Detergents have an apparent density of 0.6 to 1.3 g / cm ³ , it was found that the fluidity, Caking resistance, cleaning power and softening effect is greatly improved to complete the present invention.

The present invention mixes the cleaning component polyethylene glycol, the additive optical brightening agent, the antifoam component fatty acid soap and the flexible component to make a slurry phase, put into the high-speed rotary granulator is builders, absorbed and pulverized particles It relates to a method for producing a fabric softener-containing detergent, characterized in that after coating the water-insoluble inorganic material on the surface of the particles and mixing the additives.

Referring to the production method of the present invention in more detail as follows.

10 to 40% by weight of one or more nonionic surfactants, 0.5 to 10% by weight of polyethylene glycol, 0.2 to 10% by weight of fatty acid soap, 0.1 to 2% by weight of optical brightener and one or more powdery, slurry or A solution-type cationic surfactant is added and mixed by heating at 20 to 100 ° C. to form a liquid phase or a slurry phase. High speed rotary granulator equipped with a grinder containing 10 to 50% by weight of sodium carbonate, 1 to 15% by weight of sodium sulfate, 0.5 to 10% by weight of sodium silicate, and 0.1 to 10% by weight of antifouling agent. Mixer (Fukae, Japan) or R dige Mixer (Germany R dige))) and mixed and pulverized for 0.5 to 5 minutes at a mixing speed of 50 to 500 rpm and a grinding speed of 1000 to 5000 rpm, and then 10 to 60% by weight of a powdery water-insoluble inorganic material is added to the mixing speed of 50 to 500 rpm and pulverization. Surface coating is carried out for 0.5 to 5 minutes at a speed of 1000 to 500 rpm, and blended with 0.1 to 5% by weight of enzyme, and then 0.5 to 5 at a speed of 50 to 5000 rpm, without grinding 0.1 to 5% by weight of fragrance. A fiber softener-containing detergent can be manufactured by mixing for a minute.

In the present invention, the cleaning component is an alkyl polyethylene glycol ether of the following general formulas (1) and (2), an alkylphenol polyethylene glycol ether of the general formula (3), an alkyl polyglucoside of the general formula (4), and general formula (5) One or two or more nonionic surfactants selected from fatty acid alkanolamides and the like can be used.

R is an alkyl group having 8 to 20 carbon atoms, n is an integer of 1 to 20)

(R ₁ R ₂ is an alkyl group having 1 to 19 carbon atoms and the sum of carbon atoms of the two alkyl groups is 8 to 20, n is an integer of 1 to 20)

(R: an alkyl group having 8 to 20 carbon atoms, Rh: a phenyl group, an integer of n: 1 to 20)

(G: glucoside unit, R: alkyl group having 8 to 20 carbon atoms)

(R: alkyl group having 8 to 20 carbon atoms, n + M: integer of 2 to 10)

It is preferable to use 10 to 40 weight% of these nonionic surfactants. If the nonionic surfactant is used in an amount of 10 wt% or less, the binding between particles is not sufficiently achieved, resulting in poor dust and fluidity, deterioration in cleaning power, and in the case of using at 40 wt% or more, the surface of the particle is caused by excessive liquid content. This wetting results in poor powder flowability.

As the flexible component, the cationic surfactant is selected from quaternary ammonium salts to which an alkyl group of formula (6) is added, quaternary ammonium salts to which alkyl ester of formula (7) is added, and imidazoline of formula (8). One kind or two or more kinds thereof are used, and these cationic surfactants are adsorbed on the surface of the fiber during washing to show the softening effect and the antistatic effect.

Wherein R ₁ and R ₂ are selected from alkyl or alkenyl groups having 10 to 28 carbon atoms, and X is C1 or CH ₃ OSO ₃ .

It is preferable to use 1 to 20% by weight of the cationic surfactant. If the amount thereof is less than 1% by weight, the softness and antistatic effect is weak, and if the amount is more than 20% by weight, the price of the cationic surfactant is high, resulting in an increase in manufacturing cost.

Fatty acid soap which improves rinsing by defoaming action is one or two or more of fatty acid sodium soap of formula (9), fatty acid potassium soap of formula (10) and fatty acid potassium soap of formula (11) use.

In the singular formula, n is an integer of 6 to 30.

It is preferable to use 0.2 to 10 weight% of these fatty acid soaps. If the amount is less than 0.2% by weight, it is difficult to exhibit the defoaming force due to the small content, and when used more than 10% by weight, the softening effect is reduced due to the interaction with the cationic surfactant, which is a flexible component. In addition, when the carbon number of the alkyl group is 6 or less, the defoaming force is weak, and in the case of 30 or more, there is a disadvantage that the hydrophobicity becomes stronger and solubility worsens.

It is preferable to use 0.5 to 10% by weight of polyethylene glycol absorbed by the particles in the state dissolved in the nonionic surfactant to increase the binding strength and strength of the particles. If the content of polyethylene glycol is 0.5% by weight or less, it is difficult to form particles, and when the content of polyethylene glycol is 10% by weight or more, the grown particle hardness increases, solubility deteriorates and deterioration in cleaning power may be caused. In addition, the average molecular weight of polyethylene glycol is preferably 1,000 to 25,000. If the average molecular weight is 1,000 or less, the coagulation action of the nonionic surfactant is weak, and if the average molecular weight is 25,000 or more, solubility deteriorates.

In addition, the component used as a builder component to enhance the cleaning power of the surfactant, sodium carbonate, sodium silicate (Na ₂ CO ₃ : SiO ₂ = 1: 1.9-1: 3.5), delta or beta-type crystalline silicate (Layered Crystalline δ) -Na ₂ Si ₂ O ₅ or β-Na ₂ Si ₂ O ₅ ), sodium sulfate (Na ₂ SO ₄ ) and the like can be used.

As anti-fouling agent, polyacrylic acid or a salt thereof, polyacrylic acid and aryl alcohol and a copolymer thereof or a salt thereof, a copolymer of polyacrylic acid and maleic acid or a salt thereof may be used.

High speed mixer with grinder (Vertical High Speed Mixer, Fukae Japan) or R dige Mixer (Germany R The water-insoluble inorganic material applied to the surface of the particles formed in the dige))) to enhance the fluidity of the particles may be selected from zeolite (A or P type), talc, clay, etc. , If the particle size is more than 10μm, the surface coating to the detergent particles is not made well, the fluidity of the detergent particles is reduced and remains in the clothes after washing, so it is preferable to use 30 to 100% by weight of 10 μm or less. Do.

Excipients include fluorescent brighteners (e.g. stilbene, biphenylstilbene, parazoline, coumarin, quinolone), enzymes (e.g. protease, amylase, lipase, cellulase), foam control agents (e.g. fatty acid, Silicone type, paraffin wax type), and the like.

Dissolution temperature is obtained by mixing polyethylene glycol, fatty acid soap, fluorescent brightener with one or more powder, slurry or solution phase cationic surfactants in one or more nonionic surfactants to form a liquid or slurry phase. Below 20 ℃, nonionic surfactants, polyethylene glycols, fatty acid soaps, and fluorescent brighteners are present in solid or viscous strong slurry form, making it difficult to uniformly mix and absorb the internal components of builders in high-speed rotary granulators. It becomes difficult, and at a temperature of 100 ° C. or higher, it is appropriate to dissolve at a temperature of 20 to 100 ° C. because the softening effect and the fluorescence weight loss are reduced due to the thermal denaturation of the cationic surfactant and the optical brightener.

Vertical High Speed Mixer (Fukae, Japan) or R with a grinder loaded with builder ingredients sodium carbonate, sodium sulfate, sodium silicate and anti-fouling agent Dige Co., Ltd.) The mixing speed of the above-mentioned surfactant slurry and mixing and pulverization and the surface coating of the water-insoluble inorganic material are suitable at 50 to 500 rpm. However, at the mixing speed of 50 rpm or less, sufficient mixing is difficult. Over 500rpm speed leads to premature aging of equipment due to overload. Grinding speed is not enough mixing and grinding at 1000rpm and above, in case of 5000rpm or more, detergent particles are regrind after builder and granulation due to overloading and excessive crushing of the equipment, and nonionic surfactant solution flows out There is a disadvantage in that the particle size decreases. At this time, 0.5 to 5 minutes are appropriate, but the mixing and grinding time is short in 0.5 minutes or less, so that the mixing and grinding are not sufficiently performed, and after 5 minutes, the detergent particles after granulation with the builder due to excessive grinding are regrinded. There is a disadvantage that the nonionic surfactant solution flows out and the fluidity is lowered and the size of the particles becomes smaller.

When adding additives such as defoaming ingredients, fragrances, enzymes, etc., the grinder does not operate and only mixes the mixing device.In this case, sufficient mixing is difficult at a mixing speed of 50 rpm or less, and premature operation of the equipment due to overload at a speed of 500 rpm or more. It becomes aging, and the mixing and grinding time is short in 0.5 minutes or less, the mixing is not enough, the mixing time is longer than 5 minutes, there is a disadvantage that productivity is low, the stirring speed is 50 to 500rpm, mixing time is 0.5 to 5 minutes proper.

Hereinafter, the present invention will be described based on Examples, but the technical scope of the present invention is not limited to these Examples.

Example

To prepare the fabric softener-containing detergents of Examples 1 to 9 by changing the manufacturing conditions of each process in the composition ratio as shown in Table 1, and to prepare the detergents of Examples 10 and 11 by changing the composition ratio of the components of each component The production conditions are the same as those of the fabric softener-containing detergent C of Example 1. Comparative Example 1 is a conventional concentrated detergent prepared by drying the blended slurry mixed with each component through a conventional countercurrent spray drying process and then densifying.

1) Sodium Dodecylbenzenesulfonate

2) Sodium alpha olefin sulfonate (C12: C14 = 7: 3)

3) Nonionic surfactant of general formula (1) mentioned above, carbon number of alkyl group 12, ethylene oxide addition mole number 7

4) Nonionic surfactant of general formula (2) mentioned above, carbon number of two alkyl groups 12, ethylene oxide addition mole number 9

5) Sodium soap with 14 carbon atoms

6) potassium soap with 14 carbon atoms

7) Calcium soap having 14 carbon atoms of each fatty acid of general formula (5)

8) Cationic surfactant of formula (6), dimethyl distearyl ammonium chloride (Aeros urf TA101, Witco, USA)

9) Cationic Surfactant of Formula (7), Ditalowcarboxyethylhydroxyethylmethylammonium metsulfate (Rewoquat WE 18, Witco, USA)

10) Cationic Surfactant of Formula (8), Methyltallowamidoethyl Dalowlimidazoliniummethyl Sulfate (Varisoft 475, Witco, USA)

11) Savinase 6.0T (Novo Nordisk, Denmark)

12) Tinopal-CBSX (Ciba-Geigy, Switzerland)

Example 1

Fabric fastener-containing detergents A to F were prepared by varying the time of the mixing and grinding process using the High Speed Mixer (Fukae, Japan) as shown in Table 2 below.

Example 2

High Speed Rotary Assembly Machine R dige Mixer (Germany R dige) was used to change the time of the mixing and grinding process as shown in Table 3 to prepare a fabric softener-containing detergents G to L.

Example 3

Fabric softener-containing detergents M to R were prepared by varying the time of the surface coating process of the water-insoluble substance using a high speed mixer (Fukae, Japan).

Example 4

High Speed Rotary Assembly Machine R dige Mixer (Germany R dige) was used to change the time of the mixing and grinding process to prepare the fabric softener-containing detergents S to X.

Example 5

Using a high speed mixer (Fukae, Japan) and Rodige Mixer (Rodige, Germany), a high-speed rotary granulator was used to change the time of the additive injection process of the water-insoluble material to prepare fabric softener-containing detergents Y to AD. .

Example 6

The temperature of the surfactant slurization process was changed as shown in Table 7 below to prepare fabric softener-containing detergents AE to AI.

Example 7

The mixing and grinding speeds of the mixing and grinding processes were changed as shown in Table 8 to prepare fabric softener-containing detergents AI to AN.

Example 8

The fiber softener-containing detergents AO to AT were prepared by changing the mixing and grinding speed of the water-insoluble component surface coating process as shown in Table 9 below.

Example 9

The mixing rate of the additive injection process was changed as shown in Table 10 to prepare the fabric softener-containing detergents AU to AW.

Example 10

The softener-containing detergents AX to BF were prepared by changing the content of the cationic surfactant to 1 to 20% by weight.

The manufacturing process was the same as the fabric softener-containing detergent D of Example 1.

1) Sodium Dodecylbenzenesulfonate

2) Sodium alpha olefin sulfonate (C12: C14 = 7: 3)

3) Nonionic surfactant of general formula (1) mentioned above, carbon number of alkyl group 12, ethylene oxide addition mole number 7

4) Nonionic surfactant of general formula (2) mentioned above, carbon number of two alkyl groups 12, ethylene oxide addition mole number 9

5) Sodium soap with 14 carbon atoms

6) potassium soap with 14 carbon atoms

7) Calcium soap having 14 carbon atoms of each fatty acid of general formula (5)

8) Cationic surfactant of formula (6), dimethyl distearyl ammonium chloride (Aeros urf TA101, Witco, USA)

9) Cationic Surfactant of Formula (7), Ditalowcarboxyethylhydroxyethylmethylammoniummethosulfate (Rewoquat WE 18, Witco, USA)

10) Cationic Surfactant of Formula (8), Methyltallowamidoethyl Dalowlimidazoliniummethyl Sulfate (Varisoft 475, Witco, USA)

11) Savinase 6.0T (Novo Nordisk, Denmark)

12) Tinopal-CBSX (Ciba-Geigy, Switzerland)

Example 11

The water insoluble inorganics were changed to prepare fabric softener-containing detergents GB to BJ. The manufacturing process is the same as the fabric softener-containing detergent D of Example 1.

1) Sodium Dodecylbenzenesulfonate

2) Sodium alpha olefin sulfonate (C12: C14 = 7: 3)

3) Nonionic surfactant of general formula (1) mentioned above, carbon number of alkyl group 12, ethylene oxide addition mole number 7

4) Nonionic surfactant of general formula (2) mentioned above, carbon number of two alkyl groups 12, ethylene oxide addition mole number 9

5) Sodium soap with 14 carbon atoms

6) potassium soap with 14 carbon atoms

7) Calcium soap having 14 carbon atoms of each fatty acid of general formula (5)

8) Cationic surfactant of formula (6), dimethyl distearyl ammonium chloride (Aeros urf TA101, Witco, USA)

9) Cationic Surfactant of Formula (7), Ditalowcarboxyethylhydroxyethylmethylammoniummethosulfate (Rewoquat WE 18, Witco, USA)

10) Cationic Surfactant of Formula (8), Methyltallowamidoethyl Dalowlimidazoliniummethyl Sulfate (Varisoft 475, Witco, USA)

11) Savinase 6.0T (Novo Nordisk, Denmark)

12) Tinopal-CBSX (Ciba-Geigy, Switzerland)

Test Example

The following tests were carried out on the fabric softener-containing detergent prepared in the above example.

(1) cleaning power

The high density powder nonionic detergent of the above example was subjected to a washing test under the following conditions.

Washing Machine: Terg-O-Tometer

Cleaning temperature: 20 ℃

Washing water: Hardness 40ppm Ca , 10ppm Mg

Bath ratio: 4.5g contaminated cloth / 11 wash water

Contaminated cloth: EMPA Art No.101 (olive oil, carbon black / cotton)

Detergent concentration: 0.67g / 1

Evaluation: The cleaning power was converted into comparative example 1 as 100.

(2) fiber softening effect

The fabric softener-containing detergent prepared in the above Example was subjected to the fabric softness test under the following conditions.

Washing Machine: Waist Type Automatic Washing Machine

Cleaning temperature: 20 ℃

Number of washes: hardness 40ppm Ca , 10ppm Mg

Bath ratio: 200 g terry towels / 301 wash water

Test gun: Terry towel

Detergent concentration: 0.67g / 1

Evaluation: In Table 13, the average value of the soft touch was given to each towel by the touch of 30 selected panel testers, and the average value was selected from 1 to 5 points.

(3) antistatic effect

The fibrous softener-containing detergent prepared in Example was subjected to a chargeability test by the KS-K-0555 B method under conditions of a concentration of 0.67 g / 1, a temperature of 23 ± 1 ° C., and a relative humidity of 45 ± 1%.

(4) apparent density

The apparent density of the high density powder nonionic detergent prepared in the above example was measured.

(5) compression

The high-density powder non-ionic detergent prepared in the above example was placed in a 100 ml container using a powder tester (Japan Hosogawa Co., Ltd.), placed in a 5 cm container, and vibrated for 3 minutes at a speed of 30 times per minute at a interval of 5 cm to compress the fabric softener. The compression ratio of the detergent included was determined.

(6) solubility

100 g of the high-density powder nonionic detergent prepared in the above example was added to 1 L of ion-exchanged water, stirred for 5 minutes, and the detergent solution was passed through a standard mesh of 20 mesh.

(7) particle size

100 g of the high-density powder non-ionic detergent prepared in the above example was shaken 60 times for 1 minute at a amplitude of 5 cm using a standard mesh of 20 mesh and 60 mesh, and then passed through the standard mesh to measure the weight percent of 20 mesh to 60 mesh to measure particle size. It was.

(8) yield

The yield of the high density powder nonionic detergent prepared in the above example was measured.

The experimental results as shown in Table 13 below.

As shown in Table 13, the fabric softener-containing detergent of the present invention has excellent washing power, fabric softening effect, antistatic effect, good solubility, high specific gravity, low compressibility, high yield. have.

Claims (13)

After mixing the coagulation component polyethylene glycol, the fluorescent whitening agent additive, the fatty acid soap as a defoaming component, and the flexible component, make a slurry phase, put it in the high-speed rotary granulator with builders, mix and absorb it, and grind it to make particles. A method of producing a fabric softener-containing detergent, characterized by coating a water-insoluble inorganic substance on the surface of the particles and mixing the additives. The cleaning component according to claim 1, wherein the cleaning component is an alkyl polyethylene glycol ether of the following general formulas (1) and (2), an alkylphenol polyethylene glycol ether of the general formula (3), an alkyl polyglucoside of the general formula (4), and general A method for producing a fabric softener-containing detergent, characterized in that one or two or more nonionic surfactants selected from fatty acid alkanolamides of formula (5). (R: alkyl group having 8 to 20 carbon atoms, n: integer of 1 to 20) (R1, R2 is an alkyl group having 1 to 19 carbon atoms and the sum of carbon atoms of the two alkyl groups is 8 to 20, n is an integer of 1 to 20) (R: an alkyl group having 8 to 20 carbon atoms, Ph: Phenylrl, n: an integer of 1 to 20) (G: Glucoside unit, R: alkyl group having 8 to 20 carbon atoms) (R: alkyl group having 8 to 20 carbon atoms, n + m: integer of 2 to 10) The method of manufacturing a fabric softener-containing detergent according to claim 2, wherein the amount of the nonionic surfactant is 10 to 40% by weight. The quaternary ammonium salt system of claim 1, wherein the flexible component is added with an alkyl group of formula (6), a quaternary ammonium salt system with addition of alkyl ester of formula (7), and imidazoline system of formula (8). A method for producing a fabric softener-containing detergent, characterized in that one or two or more selected from a cationic surfactant in solution, slurry or powder form. Wherein R ₁ and R ₂ are selected from alkyl or alkenyl groups having 10 to 28 carbon atoms, and X is independently selected from C1 or CH ₃ OSO ₃ . The method of claim 3, wherein the amount of cationic surfactant is 1 to 20% by weight. The fatty acid soap according to claim 1, wherein the fatty acid soap is one or two or more selected from fatty acid sodium soap of formula (9), fatty acid potassium soap of formula (10) and fatty acid calcium soap of formula (11). A method of producing a fabric softener-containing detergent. n is an integer of 6-30. The fiber according to claim 1, wherein the cleaning component is mixed with polyethylene glycol as a coagulation component, a fluorescent brightener as an additive, a fatty acid soap as a defoaming component, and a flexible component to prepare a slurry phase. The fiber has a temperature of 20 to 100 ° C. Manufacturing method of softener-containing detergent. The method of claim 1, wherein the high-speed rotary granulator is equipped with a pulverizer containing a softening agent, a cleaning component, a binding coagulant, a fluorescence brightener pulverized slurry containing water insoluble inorganic material on the surface of the particles, characterized in that Method for preparing a detergent. The method of claim 1, wherein the polyethylene glycol has a molecular weight of 1,000 to 50,000. The method according to claim 1, wherein the builder is one or two or more selected from sodium carbonate, sodium sulfate, sodium silicate, acrylic acid polymer and maleic acid-acrylic acid copolymer polymer. The method of claim 1, wherein the water-insoluble inorganic material is one or two or more selected from zeolite, talc, clay and silica, the particle size of less than 10μm to prepare a fabric softener-containing detergent, characterized in that 30 to 100% by weight Way. The method of claim 1, wherein the additive is a fluorescent whitening agent, an enzyme and a bubble control agent. The method of manufacturing a fabric softener-containing detergent according to claim 1, wherein the prepared apparent density is 0.5 to 1.3 g / cm ³ .