KR101714761B1 - Making method of kitchen detergent composition using waste edible oil - Google Patents

Abstract

The present invention relates to a method for preparing a liquid kitchen detergent. The method according to the present invention comprises: a heating step in which purified waste edible oil is heated to 110-130C; a first saponification step in which adding 3-7 parts by weight of caustic soda is added based on 100 parts by weight of the heated waste edible oil to cause saponification, thereby providing a soft jelly-like primary saponified composition; a second saponification step in which the jelly-like saponified composition is metered and introduced to an agitator in an amount of 100 parts by weight, followed by agitation at room temperature, and 5-15 parts by weight of baking soda based on 100 parts by weight of the saponified composition is introduced during the agitation to cause pulverization of the saponified composition, thereby providing a secondary saponified composition; a pulverization step in which the secondary saponified composition is aged and pulverized to provide soap powder; a mixing step in which an alkaline solution is prepared and adding 156-17 parts by weight of the soap powder is added based on 100 parts by weight of the alkaline solution, followed by agitation; and a post-addition agitation step in which an anionic surfactant, non-ionic surfactant and citric acid are added after the mixing step and the resultant mixture is agitated to provide a liquid kitchen detergent. According to the present invention, waste edible oil is used as a starting material for preparing a liquid kitchen detergent and caustic soda is introduced while the waste edible oil is heated to cause saponification. Then, the saponified composition is introduced to an agitator in its soft jelly-like state not a completely cured state and baking soda is added thereto under agitation to cause natural pulverization, so that the composition is divided into a plurality of agglomerates in a container upon the completion of the saponification. Therefore, it is possible to reduce the cost required for producing soap powder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for preparing a liquid detergent composition,

The present invention relates to a method for preparing a liquid detergent with a waste cooking oil as a starting point, wherein caustic soda is added to the waste cooking oil and the mixture is sieved at a high temperature. When the reaction product is in a state of jelly state, baking soda is added and stirred The present invention relates to a method for producing a liquid dishwashing detergent, and more particularly, to a method for producing a liquid dishwashing detergent.

In connection with the manufacturing method of the liquid dishwashing detergent, many methods for manufacturing the kitchen detergent utilizing the waste cooking oil, which is a waste resource, have been disclosed.

For example, Korean Patent Publication No. 10-1416545 (Patent Document 1) discloses a method for producing a liquid detergent for kitchen using waste cooking oil, which not only recycles used waste cooking oil but also uses waste cooking oil as a starting material A pulverizing step of pulverizing the solid soap to prepare a powder soap, a dissolution step of dissolving potassium hydroxide in the bamboo extract to make an alkali solution, and a step of dissolving a fatty acid and a bamboo liquid in an alkaline solution A first addition step of adding and stirring the powdered soap, a second addition step of adding and stirring the powdery soap to the alkali solution after the first addition step, and a step of adding citric acid and natural oil after the second addition step The process is open.

Patent Document 1 has a feature of producing an alkaline solution using a bamboo extract and a feature of adding a bamboo liquid to an alkali solution.

This makes it possible to provide a kitchen detergent excellent in antibacterial activity besides the utilization of waste resources.

However, when the caustic soda solution is added to the waste cooking oil, the caustic soda solution is added to the container containing the waste cooking oil, so that the contents inside the container become hardened to form a very large lump When the bar is crushed to such an extent that it can be utilized in the production of a liquid detergent, a plurality of crushing processes are required.

In other words, it is necessary to utilize a crusher that initially splits a large lump into parts, and crushes the split lumps to a smaller size over the second and third tiers.

Accordingly, there is a problem in that the manufacturing cost of the liquid detergent is increased by recycling the waste cooking oil.

In addition, in order to increase the antimicrobial activity, a process for producing a bamboo smoke liquor is performed. In order to produce bamboo smoke liquor, there is a problem that a large space for carbonizing bamboo, a production cost required for fuel and labor are required.

KR 10-1416545

The liquid kitchen detergent of the present invention is a method for solving the problems caused by the conventional technology as described above. The liquid kitchen detergent is prepared using waste cooking oil as a starting material, and caustic soda is added When the saponification reaction is initiated, a saponification reaction occurs. When the gelatinous state is not completely cured and the gelatinous state becomes soft, it is added to an agitator and baking soda is added while stirring to induce a natural grinding reaction. So that the production cost for producing the powder soap can be reduced.

In addition, in a typical kitchen detergent, when the hands are washed with water after the washing, the water is felt and the skin becomes stiff. In the present invention, the drying feeling of the skin after using the detergent is reduced by adding the extract .

In particular, the extracts of sunflower seeds are extracted with ethanol, so that chalcone, which is a large amount of sunflower seeds, is contained in the detergent as a useful ingredient.

In addition, it is not added separately in the separate process, but is added together with caustic soda in the initial saponification process, so that the process is not complicated and the useful ingredient can be provided while maintaining the simplicity.

In addition, the solid filtered by ethanol extraction is dried and pulverized, and then added together in a post-stirring step for the preparation of a liquid detergent, so that the beneficial ingredients of the first and second decanter can be included as much as possible.

Further, it is intended to provide a detergent which can maintain the moisturization of the skin even after use by containing an ethanol extract of paprika containing a large amount of vitamin C, which is good for the skin, in the detergent.

In order to solve the above problems, a method of manufacturing a liquid dishwashing detergent according to the present invention comprises heating a purified waste cooking oil to 110 to 130 캜; A primary saponification step of adding 3 to 7 parts by weight of caustic soda on the basis of 100 parts by weight of the heated waste cooking oil to cause a saponification reaction to produce a flexible jellied primary saponification composition; The jellied saponification composition is weighed and added to a stirrer at 100 parts by weight and stirred at room temperature. During the stirring, 5-15 parts by weight of baking soda based on 100 parts by weight of the saponifying composition is added to cause a pulverization reaction of the saponifying composition, Secondary saponification stepwise to prepare the composition; A pulverization step of aging the secondary saponification composition and pulverizing the same to produce a powdery soap; Preparing an alkali solution, adding 156 to 17 parts by weight of the powdery soap on the basis of 100 parts by weight of the alkali solution, and stirring the mixture; And adding and stirring an anionic surfactant, a nonionic surfactant, and citric acid to the liquid laundry detergent after the mixing step.

In the above-mentioned constitution, it is characterized in that an extract of Seorak Seokcho, which is obtained by extracting the Seorak extract with ethanol and the solid is separated by filtration, is added, and then 0.2-1.0 parts by weight of the Seorakucho extract is added in the primary saponification step .

In addition, there is also provided a method for producing a fermented soybean curd; A crushing step of crushing the dried mushroom solids; and a step of crushing the crushed mushroom solids, which are added together in the stepwise stirring step.

In addition, 0.1 to 0.3 parts by weight of 100 parts by weight of the alkali solution is added to the early-late-stage solids added in the subsequent stirring step.

In addition, paprika is prepared and then paprika and ethanol are mixed in a weight ratio of 1: 5 to 10, and then the mixture is extracted at room temperature at room temperature and filtered with a filter paper to produce a paprika extract. The paprika extract is further mixed with the mixture And 1.1 to 1.3 parts by weight based on 100 parts by weight of the alkali solution.

According to the present invention, a liquid dishwashing detergent is prepared from waste cooking oil as a starting material, caustic soda is added by adding caustic soda in a state where the waste cooking oil is warmed, but it is not fully cured and becomes a soft jelly state , A baking soda is added to the agitator while stirring to induce a natural pulverization reaction so as to be separated into a plurality of lumps inside the container when the saponification is completed to thereby reduce the production cost for producing the powder soap .

In addition, in a typical kitchen detergent, when the hands are washed with water after the washing, water is felt and the skin becomes stiff. In the present invention, the skin dry feeling after using the detergent can be reduced by adding the extract of Seomuncho extract.

Especially, the extracts of sunflower seeds are extracted with ethanol, so that chalcone, which is a useful ingredient which is contained in large quantities in early June, can be included in the detergent as a useful ingredient.

In addition, the extract of Seorak Seokcho is not added separately in a separate process but added to caustic soda in the initial saponification process so that the process is not complicated and the useful ingredient can be provided while maintaining its simplicity.

In addition, the solid filtered by ethanol extraction is dried and pulverized, and then added together in a subsequent stirring step for the preparation of a liquid detergent, so that the beneficial ingredients of the early May can be included as much as possible.

Further, since the ethanol extract of paprika containing a large amount of vitamin C, which is good for the skin, is included in the detergent, it is possible to provide a detergent which can maintain the moisturization of the skin even after use.

Hereinafter, a method of manufacturing the liquid dishwashing detergent of the present invention will be described in detail.

1. Heating step

The purified waste cooking oil is heated to 110 to 130 ° C.

Waste cooking oil as starting material means cooking oil used for cooking food.

Such waste cooking oil is used after refining process because it contains various foreign substances.

Filtration and precipitation can be used as a purification process.

First filter by sieving, then filter and store in a vat for 1 to 3 days to remove solids by sedimentation on the bottom.

When the waste cooking oil from which the purified and debris is removed is heated to the above temperature, the fluidity is increased, so that mixing and stirring are performed smoothly and reactivity with caustic soda is increased.

2. Primary saponification stage

3 to 7 parts by weight of caustic soda is added based on 100 parts by weight of the heated waste cooking oil to cause a saponification reaction to produce a flexible jelly-like primary saponification composition.

May be added to a solution in which the above-mentioned caustic soda is dissolved in 15 to 25 parts by weight of water based on 100 parts by weight of waste cooking oil.

The amount of caustic soda added is in a range smaller than the amount used in a conventional powder soap manufacturing process.

That is, caustic soda is used in an amount of 10 parts by weight or more based on 100 parts by weight of waste cooking oil in the production of ordinary powder soap.

If not, the saponification is not carried out smoothly.

On the other hand, in the present invention, the primary saponification composition such as a jelly state is produced by preventing the saponification reaction from being actively performed by reducing the amount of caustic soda to be lower than the conventional amount.

At this time, an extract of Seorak Seokcho, which is obtained by extracting the Seorak leaf with ethanol, is separated by filtration, and then 0.2-1.0 part by weight of the Seorakseol Extract can be further added in 100 parts by weight of the waste cooking oil in the first saponification step.

More specifically, the leaves are washed, cut and dried, and then dried and crushed.

Then, the mixture is mixed with 1: 5 ~ 10 parts by weight of leaf powder and ethanol at normal temperature, extracted at room temperature for 4 ~ 6 hours, and then filtered with filter paper.

As a perennial plant belonging to the Asteraceae family distributed in the Philippines, Thailand, Indonesia, India, Japan and China, Osaka University of Pharmacy researches four times as much germanium as ginseng and many kinds of natural organic matter And it is known to be used for the treatment of bruises, arthralgia, bronchitis, pulmonary tuberculosis and the like, and is effective for anti-aging and thrombolysis, prevention of cancer, blood glucose, blood pressure and cholesterol control. (Chinese Medicine Dictionary, Shanghai Science and Technology Publishing Co., Ltd., Suzhou, Vol. (2), p1138, 2367, 1984)

Among the technologies related to early menstruation, Japanese Patent Application Laid-Open No. 10-2013-0041494 discloses that menstrual bleeding is effective for the suppression of diabetes, and Japanese Patent Application Laid-Open No. 10-2016-0008459 discloses a composition for prevention and treatment of inflammation or allergic diseases The technology used is also known.

The inventors of the present invention have found that, when an extract obtained by extracting an extract of Angelica keiskei koidz. With ethanol was used in the preparation of the detergent of the present invention, the ordinary kitchen detergent has a feeling of being watery when the hands are washed with water after washing, As a result of adding the extract at the beginning of the month, it was confirmed that the feeling of dryness of the skin after using the detergent can be reduced.

It is believed that this is due to the germanium and organic matter contained in large amounts at the beginning of the first half of the year. Especially, it is thought that the chalcone component containing antioxidative effect is contained in a large amount by the ethanol extraction.

In addition, in the present invention, it is preferable to increase the beginning of the first month of the year in the production of the first half of the first half.

The process of addition is meant to steep with steam. It inflates the structure of the first half of the month to increase the utilization rate of the useful ingredient, and the fiber structure is loosened to increase the extraction rate of the useful ingredient.

In addition, the chalcone contained in the beginning of the first decanter is a component that does not change well by heat, so that the process can be prevented from being prolonged by adding it earlier than in the conventional detergent manufacturing process.

At this time, when the weight of the extract is less than the above ratio, satisfactory skin dryness-preventing effect is not obtained. If the weight of the extract is less than the above-mentioned ratio, the saponification reaction time is slowed down.

3. Second saponification step

The jellied primary saponification composition is weighed, and 100 parts by weight of the primary saponification composition is added to the agitator. The mixture is stirred at room temperature. During the stirring, 5-15 parts by weight of baking soda based on 100 parts by weight of the primary saponification composition is added, To cause a reaction to prepare a secondary saponification composition.

In the ordinary powder soap manufacturing process, when the above-described primary saponification step is maintained as it is, the saponification reaction is completed and the solid soap is completed.

However, in the present invention, as described above, when the primary saponification composition becomes viscous in the course of solidification along with the addition of a small amount of caustic soda, stirring is performed while stopping solidification.

At this time, it is preferable that low-speed agitation is carried out at a rate of about 5 to 20 revolutions per minute (RPM), which is the rotation speed of the stirring blade.

If the stirring speed exceeds the above range, a phenomenon of sticking to the stirring blade occurs at an early stage due to an excessive speed in the state like jelly. On the contrary, when the stirring speed is too low, .

Baking soda usually acts as a detergent on its own, unlike sodium hydrogencarbonate or caustic soda.

In the present invention, since the added amount of caustic soda is small as described above, neutralized oil which is not saponified is generated in the waste cooking oil and becomes soft and soft, which prevents the saponification.

In the present invention, baking soda is added to reduce the amount of caustic soda and to make it hard and soft. In this state, the baking soda is added to shorten the saponification process.

The secondary saponification composition thus prepared is hardly solidified in a process of stirring by a stirrer, not in a state where the whole is integrally bonded, so that the secondary saponification composition is divided into several small agglomerates.

4. Crushing step

The secondary saponification composition is aged at room temperature for about 6 hours to 48 hours and then pulverized to prepare a powdery soap.

In this case, the average particle size of the powdered soap is preferably about 400 to 700 mesh.

5. Mixing step

After preparing the alkali solution, the powdery soap is added in an amount of 16 to 17 parts by weight based on 100 parts by weight of the alkali solution, followed by stirring.

At this time, the amount of the powdery soap is contained in a larger amount than in the case of the conventional liquid soap-based liquid detergent producing method.

If the ratio is exceeded, there is a problem that a large amount of undissolved powder is contained. If the ratio is less than the above-mentioned range, there is a problem that the detergency is lowered.

Such a mixing step may be supplemented with an additional paprika extract.

Specifically, paprika may be prepared, and then the paprika and ethanol may be mixed in a weight ratio of 1: 5 to 10, followed by extraction at room temperature at room temperature, followed by filtration through a filter paper to produce an extract of paprika.

At this time, the paprika extract is preferably added in an amount of 1.1 to 1.3 parts by weight based on 100 parts by weight of the alkali solution in the mixing step.

It is known that paprika contains a large amount of vitamin C, which is known to have the effect of preventing skin from drying out.

6. Stirring stage

After the mixing step, an anionic surfactant, a nonionic surfactant and citric acid are added and stirred to prepare a liquid dishwashing detergent.

The anionic surfactant and the nonionic surfactant may be added in an amount of about 3 to 15 parts by weight based on 100 parts by weight of the alkali solution according to the detergency.

Citric acid is used as a raw material in the production of conventional liquid soap, and its amount may be added in an amount of 0.1 to 0.3 parts by weight based on 100 parts by weight of the alkali solution.

Citric acid is used as a stabilizer for each ingredient.

In the case where the extract is used in the first saponification step, it may be further subjected to a drying step of drying the separated solids upon extraction with ethanol and a pulverizing step of pulverizing the dried seaweed solids, The solids may be added to the post-stirring step.

In addition to chalcone, which is extracted by ethanol, it is known that germanium and ganoderma lucidum are contained at the beginning of the year.

Germanium, a natural minerals ingredient, is said to be effective for skin whitening and regeneration.

Therefore, when the useful components such as germanium not extracted in the ethanol extraction process are added after the drying and grinding of the remaining solids, the skin health of the user of the detergent can be further improved.

At this time, it is preferable that 0.1 to 0.3 parts by weight per 100 parts by weight of the alkali solution is added to the beginning of the beginning of the first half.

If the weight of the detergent is greater than the above weight, the detergent may feel a foreign body feeling due to its solid content.

The manufacturing method as described above is a method in which the amount of caustic soda added is made different from that of conventional ones and the primary saponification composition is transferred in a soft state such as jelly by visual observation of the saponification reaction during the manufacturing process, The solid state saponification according to the present invention is already divided into a plurality of small pieces so that the pulverization process for powder saponification can be remarkably shortened and the productivity is greatly improved as compared with the prior art.

Hereinafter, specific examples and experimental examples of the present invention will be described.

The waste cooking oil (soybean oil) purified by filtration is put into a container heated by boiler steam, heated to a temperature of 120 ° C, and then 5 parts by weight of caustic soda is added based on 100 parts by weight of the heated waste cooking oil. To give a flexible jelly-like primary saponifying composition.

The primary saponification composition was weighed into an agitating vessel equipped with a stirring blade rotated by a motor and charged with 10 parts by weight of baking soda as a primary saponifying composition on the basis of 100 parts by weight of the primary saponifying composition while keeping the stirring speed of the stirring blade at about 10 per minute The mixture was stirred for 1 hour to cause a pulverization reaction of the primary saponification composition to prepare a hardened secondary saponification composition.

The secondary saponification composition took a form in which several small lumps were separated from each other.

The resulting secondary saponification composition was aged at room temperature for one day and pulverized to prepare a powdery soap.

Separately, 4 parts by weight of potassium hydroxide was added to 100 parts by weight of water, followed by stirring to prepare an alkali solution. 16.5 parts by weight of the powdery soap was added based on 100 parts by weight of the alkali solution, followed by stirring.

Then, an anionic surfactant, a nonionic surfactant and citric acid were added and stirred to prepare the liquid dishwashing detergent of Example 1.

The anionic surfactant and the nonionic surfactant were added in an amount of 4 parts by weight based on 100 parts by weight of the alkali solution and 0.2 part by weight based on 100 parts by weight of the alkali solution.

The leaves were mixed with 1: 7 parts by weight of ethanol, and then extracted at room temperature for 5 hours. The filtrate was filtered to obtain a solid .

The liquid extract of Example 2 was prepared in the same manner as in Example 1 except that 0.5 part by weight of the extract solution of 100 parts by weight of waste cooking oil was added in the first saponification step, .

Proceed in the same manner as in Example 3, except that the solid matter separated by filtration was dried and pulverized when preparing an extract from Namseolcho.

When the surfactant and citric acid were added to the pulverized solid, 0.2 part by weight based on 100 parts by weight of the alkali solution was metered and the liquid dishwashing detergent of Example 3 was prepared.

Paprika was purchased from the market, paprika and ethanol were mixed in a weight ratio of 1: 7, and the mixture was extracted at room temperature at room temperature. The solid matter was filtered with a filter paper to prepare a paprika extract.

The prepared paprika extract solution was weighed so as to be 1.2 parts by weight based on 100 parts by weight of the alkali solution, and then mixed with the powder soap and the alkali solution to prepare the liquid dishwashing detergent of Example 4.

≪ Comparative Example 1 &

A kitchen detergent of Comparative Example 1 was prepared in the same manner as in Example 1 except that 8 parts by weight of caustic soda was added to 100 parts by weight of waste cooking oil.

≪ Comparative Example 2 &

A kitchen detergent of Comparative Example 2 was prepared in the same manner as in Example 1 except that 2 parts by weight of caustic soda was added to 100 parts by weight of waste cooking oil.

≪ Comparative Example 3 &

A kitchen detergent of Comparative Example 3 was prepared in the same manner as in Example 1 except that the addition amount of baking soda was 4 parts by weight based on 100 parts by weight of the primary saponifying composition.

≪ Comparative Example 4 &

A kitchen detergent of Comparative Example 4 was prepared in the same manner as in Example 1 except that the addition amount of baking soda was 16 parts by weight based on 100 parts by weight of the primary saponifying composition.

<Experimental Example 1> Sensory test on the dry feeling of skin after use

The liquid dishwashing detergent prepared according to Examples 1 to 4 and Comparative Examples 1 to 4 was mixed with water at a weight ratio of 1:10. Then, hands were soaked in the mixed liquid for 5 minutes, and then hands were washed with pure water. The degree of dryness of the test pieces was evaluated using a 9 point rating method.

However, the experimental procedure was carried out in a random order in a state in which Examples 1 to 4 and Comparative Examples 1 to 4 were not shown.

The average age of the women in their 40s and 50s was determined by age group, and the average was measured and shown in Table 4 below.

Sensory evaluation of skin dryness division Dry feeling of skin Example 1 3.7 Example 2 7.1 Example 3 7.7 Example 4 8.5 Comparative Example 1 3.3 Comparative Example 2 3.1 Comparative Example 3 3.4 Comparative Example 4 3.2

* Sensory test value (9: skin is moist, 5: normal 0: skin is dry)

As shown in Table 1, the skin of Example 1 and Comparative Examples 1 to 4 appeared dry after use.

On the other hand, in Examples 2 to 4, skin feeling of dryness was less and skin feeling was rather moist, and in Example 4, skin feeling was more excellent than Examples 2 and 3.

&Lt; Experimental Example 2 >

Add 1 ml of oil to the scraping dish: soybean oil = 8: 2 mixed oil, apply evenly and leave for 30 seconds.

This contaminated dish was used as a reference dish.

The polyurethane sponge was cut into a size of 8 cm x 8 cm x 4 cm and used as a reference sponge.

A sponge of the above-mentioned standard was placed on a clean dish, and 1 g of each detergent prepared according to the above Examples and Comparative Examples was put on the electronic scale to the two decimal places precisely. Then weigh the tap water so that 25 g of the tap water is impregnated into the sponge.

The reference contamination dish was washed with a sponge impregnated with each detergent in the following manner to test the detergency.

Specifically, the contaminated dish was stored in a water tank containing 25 ° C of tap water, taken out one by one, and washed.

The rinsing liquid and bubbles generated during the washing process were lost and only the sponge was moved to the next contamination dish to perform the washing.

The number of plates washed with the end point of the end of the washing power is shown in Table 2 below.

division Number of plates washed Example 1 16 Example 2 15 Example 3 16 Example 4 17 Comparative Example 1 12 Comparative Example 2 10 Comparative Example 3 13 Comparative Example 4 12

As a result of the above experiment, Examples 1 to 4 showed a large number of washed dishes, whereas Comparative Examples showed that the number of washed dishes was substantially smaller than those of Examples.

For this reason, in the case of Comparative Example 1, caustic soda was used more than in the Examples, so that the saponification reaction was vigorously carried out to rapidly solidify the powder, and the powder was not dissolved in the subsequent milling process .

In the case of Comparative Example 2, it is judged that the saponification reaction is not performed well because the amount of caustic soda is too small.

In the case of Comparative Example 3, baking soda was added in an excessive amount and the speed of hardening was faster than the rotation speed of the stirring blade, which is also considered to be due to failure in the particle size in the pulverization process.

In the case of Comparative Example 4, it was judged that the particle size of the powdery soap did not become uniform due to the fact that the baking soda was crushed while being hardened due to a small amount of injected particles, and thus the particles adhered to each other.

The detergent of the present invention is preferably used for a liquid-phase kitchen, and may be used for manufacturing various liquid detergents.

Claims (5)

delete delete delete delete A method for producing a liquid dishwashing detergent,
A heating step of heating the purified waste cooking oil to 110 to 130 캜;
A primary saponification step of adding 5 parts by weight of caustic soda on the basis of 100 parts by weight of the heated waste cooking oil to cause a saponification reaction to produce a flexible jelly-like primary saponification composition;
The jelly-like primary saponification composition was weighed, and 100 parts by weight of the primary saponification composition was added thereto. The mixture was stirred at room temperature for 5 to 20 revolutions per minute at room temperature. During the stirring, 10 parts by weight of baking soda A second saponification step of causing a pulverization reaction of the first saponification composition to produce a second saponification composition;
A pulverization step of aging the secondary saponification composition and pulverizing the same to produce a powdery soap;
Preparing an alkali solution, adding 16 to 17 parts by weight of the powdery soap based on 100 parts by weight of the alkali solution, and stirring the mixture;
And adding and stirring an anionic surfactant, a nonionic surfactant and citric acid after the mixing step to prepare a liquid dishwashing detergent,
And the solid matter was separated by filtration. After that, in the first saponification step, 0.5 part by weight of the extract of Namseolcho was added as 100 parts by weight of waste cooking oil,
A step of drying the separated solids upon extraction of ethanol from the supernatant leaf;
A pulverizing step of pulverizing the dried semipermeable solids;
The crushed rimless solids are added together in a post-stirring step,
0.2 part by weight based on 100 parts by weight of the alkaline solution is added,
Paprika is prepared, paprika and ethanol are mixed in a weight ratio of 1: 7, and the mixture is extracted at room temperature at room temperature, followed by filtration with a filter paper to produce an extract of paprika. Further,
Wherein the paprika extract is added in an amount of 1.2 parts by weight based on 100 parts by weight of the alkali solution in the mixing step.
Method of manufacturing liquid dishwashing detergent.