KR20040028004A - The soap for silk textile production and manufacturing method of that - Google Patents

Abstract

PURPOSE: A soap for the preparation of silk textile and its preparation method are provided, to remove sericin from raw silk effectively in roving and to improve the quality of silk in scouring. CONSTITUTION: The method comprises the steps of mixing 40 vol% of a cottonseed oil, 10 vol% of a palm oil, 10 vol% of a coconut oil, 20 vol% of a mixture of a rice bran oil and a hardened oil and 20 vol% of beef tallow; mixing the oil mixture with a 20% NaOH aqueous solution in the ratio of 2:1 by volume with stirring and saponifying the mixture at a temperature of 80-85 deg.C for 5-6 hours; leaving it alone for 1 day and removing the sunk waste; adding 1-1.5 times volume of water to the obtained supernatant saponification solution, and heating it with stirring at a temperature of 90-95 deg.C for 5-6 hours; and pouring it into a plastic mold and cooling it to prepare a soap.

Description

Soap for silk fabric manufacturing and its manufacturing method {THE SOAP FOR SILK TEXTILE PRODUCTION AND MANUFACTURING METHOD OF THAT}

The present invention relates to a soap for producing silk fabrics and a method for producing the same.

Silk fabrics are natural fibers that weave from silkworm cocoons into fabrics.

The production process of silk fabrics consists of snoozing, irradiation, weaving, refining, dyeing and processing.

Sheep sleep is the process of raising silkworms to make cocoons.

The process of pulling the thread from the cocoon is called 'investigation'. Dried cocoon is boiled in hot water of 90 ~ 100 ℃ and extract the raw silk. The surface of the extracted raw sand is oxidized in the air, and 23 to 27% of sericin is wrapped like a protective film, which is matt and stiff. If the sericin covering the surface is washed with soapy water and removed, fibroin remains mainly to give silk's unique luster and feel.

In the irradiation process, if too little sericin is removed, the fabric will be stiff, and if too much boiled, the surface will bloom and stain. Thus, soap is needed to properly remove sericin.

The sericin is removed from raw silk and weaved in a loom to squeeze dough.

Woven dough is stiff and coarse to make it soft and shiny silk, which is then boiled for 4 hours in alkaline solution such as soap to make a fabric. This process is called refining.

Refined fabrics are dyed or printed.

Dyed silk fabrics are processed by sandwashing and stretching to make silk fabrics.

In the process of manufacturing the silk fabric as described above is washed using soap in the irradiation process and refining process.

However, when using the conventional general laundry soap, sericin does not fall well, or there is a problem such as scratches or uneven quality of the refined product.

To Korean Laid-Open Patent Publication No. 1999-015362 (composition of fats and oils for cleaning clothing), caustic soda is added to 30 to 80 wt% of animal and vegetable pure soap powder, 20 to 70% of cured fatty acid, and 5 to 30 wt% of lath. Compositions of fats and oils for washing clothing prepared by adding zeolite powder, water soluble rubber 20-30% by weight and the like are disclosed, but are not suitable for use in the production of silk fabrics.

Korean Unexamined Patent Publication No. 2002-0030181 (Pollutants for Mild Clothing) is composed of dirimonene with cleaning properties, a cleaning accelerator, a dispersing emulsifier and a solubilizing agent as a main component, and an adjuvant for each function is mixed in a specific ratio as necessary. The present invention relates to a detergent composition capable of washing water with respect to hair, silk and hemp garments, which were impossible to wash with water, but are not suitable for use in the production of silk fabrics.

SUMMARY OF THE INVENTION The present invention provides a soap and a method for producing the soap for finding a kind of raw material, an appropriate blending ratio, and the like and appropriately removing sericin in the irradiation step in the soap used in the manufacturing process of the silk fabric.

In addition, an object of the present invention is to provide a soap and a method for producing the same, which are found in the soap used in the manufacturing process of the silk fabric to find a kind of a raw material, an appropriate blending ratio, and the like in a refining process.

The present invention relates to a soap for producing silk fabrics and a method for producing the same.

The method for producing a silk fabric soap of the present invention, 40% by volume of cottonseed oil, 10% by volume palm oil, 10% by volume palm oil, 20% by volume of mixed oil of rice bran oil and hardened oil, 20% by volume of tallow, 100% by volume of the total After mixing the fats and oils with an aqueous solution of sodium hydroxide having a total mixing fat and concentration of 20% by weight over 30 to 40 times at a volume ratio of 2: 1, the mixture was heated to 80 to 85 DEG C for 5 to 6 hours to saponify. After the reaction, it was left for 1 day to remove the waste liquid which had been separated and settled to the lower layer, and only the soap solution of the upper layer was taken. Then, water was added at 1 to 1.5 times the volume of the obtained soap solution and heated to 90 to 95 ° C. After stirring for 5-6 hours, it is poured into a plastic mold and cooled to prepare a soap.

At this time, the compounding ratio for each raw material can be added or subtracted within the usual range to maintain the properties of the soap.

Soap for irradiation process of the silk fabric manufacturing soap of the present invention is prepared by mixing the ratio of rice bran oil and hardened oil in the ratio of 3: 1 to 4: 1 in order to efficiently remove sericin from raw sand.

Soap for refining silk fabric soap of the present invention is prepared by mixing the ratio of rice bran oil and hardened oil in a ratio of 1: 3 to 1: 4 in order to make a stiff dough soft and shiny fabric.

The properties of the raw materials used in the soap production of the present invention are as follows.

Cottonseed oil is peeled and steamed cottonseed oil and used as cooking oil or as raw material for margarine, salad oil, hardened oil and soap. Cottonseed oil is an unsaturated fatty acid consisting of oleic acid with one double bond and linoleic acid with two double bonds, so that it is highly soluble in soap production, and has great washing and foaming properties.

Palm oil is vegetable oil, but it contains a large amount of saturated fatty acid. It has excellent stability at high temperatures and slows the rancidity. Its main ingredient is palmitic acid, which has 16 carbon atoms. Therefore, palm oil has a great cleaning power and stability, and when used in soap production, unlike ordinary soap, palm oil does not melt upon heating and maintains soap form and function.

Palm oil is composed of lauric acid with 12 carbon atoms as its main ingredient. It has high saturation of fatty acid and low iodine value, so it has good light and heat resistance and makes soap with high solubility and stability.

Rice bran oil is made by squeezing rice bran and is used as a raw material for medicines, soaps, paints, and cosmetics. The main components of rice bran oil are unsaturated fatty acids oleic acid and linoleic acid. Therefore, the use of rice bran oil in the manufacture of soap can produce a high-quality soap having high solubility, high cleaning power and high bubbleability.

Cured oil is a white artificial fat hardened by adding hydrogen to liquid oils such as soybean oil, and has a property of changing unsaturated fatty acid to saturated fatty acid to increase melting point to become solid at room temperature.

Uji is a saturated fatty acid with 18 carbon atoms, steric acid. Therefore, it is possible to manufacture a soap with high stability, high cleaning power and high foamability during soap production.

Sodium hydroxide neutralizes fatty acids during soap production, and depending on the amount of sodium hydroxide solution added and how it is added, the soap may be made slightly alkaline to neutral.

In order to develop a silk fabric soap of the present invention, the present inventors completed the present invention through a number of experiments and results analysis. That is, in manufacturing the soap of the present invention, a number of cases occur depending on the type of each raw material, the appropriate blending ratio, the conditions, and the like, and the inventors of the present invention have created a lot of experiments and ideas. The invention may not be easily invented by those skilled in the art in combination with the known content.

Hereinafter, the present invention will be described in detail with reference to Examples, but these examples do not limit the scope of the present invention.

Example 1 Preparation of Soap for Irradiation Process

Vegetable oil, cottonseed oil, palm oil, palm oil, rice bran oil, and hardened oil, were purchased from the market and prepared.

Uji, an animal fat or oil, was purchased from the market and prepared.

A commercially available 98% sodium hydroxide was prepared.

240 kg of sodium hydroxide was dissolved in 960 kg of water to prepare 1000 L of an aqueous sodium hydroxide solution having a concentration of 20% by weight.

800 liters of prepared cottonseed oil, 200 liters of palm oil, 200 liters of palm oil, 300 liters of rice bran oil, 100 liters of hardened oil, and 400 liters of tallow were placed in a tank.

The sodium hydroxide aqueous solution prepared in this tank was stirred, putting 40 L each 40 times at 10 minute intervals.

After stirring, the mixture was heated to 80 ° C. for 5 hours for a saponification reaction. The volume after the reaction doubled to the initial volume. This solution was left for 24 hours.

The waste liquid separated and settled in the lower part of the tank was left, and only the soap solution in the upper part was transferred to two tanks next to each other using a pump, and was filtered through a sieve having a diameter of 1 mm to obtain 2,900 L of liquid for each tank. .

3,100 L of water was added to each tank and stirred for 5 hours while heating to 95 ° C.

The reactants were placed in a plastic mold and allowed to cool to prepare soaps for the irradiation process when preparing the silk fabric of the present invention.

Example 2 Preparation of Soap for Refining Process

Vegetable oil, cottonseed oil, palm oil, palm oil, rice bran oil, and hardened oil, were purchased from the market and prepared.

Uji, an animal fat or oil, was purchased from the market and prepared.

A commercially available 98% sodium hydroxide was prepared.

240 kg of sodium hydroxide was dissolved in 960 kg of water to prepare 1000 L of an aqueous sodium hydroxide solution having a concentration of 20% by weight.

800 liters of prepared cottonseed oil, 200 liters of palm oil, 200 liters of palm oil, 400 liters of tallow, 100 liters of rice bran oil, and 300 liters of hardened oil were placed in a tank.

The sodium hydroxide aqueous solution prepared in this tank was stirred, putting 40 L each 40 times at 10 minute intervals.

After stirring, the mixture was heated to 80 ° C. for 5 hours for a saponification reaction. The volume after the reaction doubled to the initial volume. This solution was left for 24 hours.

Leave the waste liquid separated and settled in the lower part of the tank, and transfer only the soap solution in the upper part of the tank to the two tanks next to each other using a pump to filter out a sieve having a diameter of 1 mm to obtain 2,900 L of liquid for each tank. It was.

3,100 L of water was added to each tank and stirred for 5 hours while heating to 95 ° C.

The reactant was cooled in a plastic mold to prepare a soap for the refining process in the production of the silk fabric of the present invention.

Experimental Example 1 Examination of the Soap for Irradiation Process

The soap prepared in Example 1 of the present invention was used in the irradiation step to investigate the effect of sericin removal from raw silk.

General laundry soap was used as a control, and the results are shown in Table 1 below.

<Table 1> Effect test result

division Removal degree of sericin Gloss of thread after irradiation Feel of thread after irradiation Example 1 (soap for irradiation process) 98% Very good Very soft Control group (normal laundry soap) 80% usually Slightly stiff

As in Experimental Example 1, the soap for the irradiation step of Example 1 of the present invention was superior in the degree of removal of sericin. In addition, when comparing the gloss and the touch of the yarn after irradiation, the effect was found to be superior to the general laundry soap.

Experimental Example 2 Effect Test of Soap for Refinery Process

The soap for the refining process of the present invention prepared in Example 2 was used in the refining process to examine its effect. General washing soap was used as a control and the results are shown in Table 2 below.

<Table 2> Effect test result

division Gloss of fabric after refining Feel of fabric after refining Example 2 (soap for refining process) Very good Very soft Control group (normal laundry soap) usually usually

When the soap for the refining process of Example 2 of the present invention was used as in Experimental Example 2, it was found that the gloss and the touch of the yarn after the refining were superior to those of the general laundry soap.

The present invention provides a soap and a method for producing the same, which efficiently removes sericin in the irradiation step when producing a silk fabric.

In addition, the present invention provides a soap and a method for producing the silk fabric to improve the gloss and feel in the refining process.

Claims (4)

40% by volume of cottonseed oil, 10% by volume of palm oil, 10% by volume of palm oil, 20% by volume of mixed oils of rice bran oil and hardened oil, and 20% by volume of tallow are mixed in 100% by volume of oil and fat. After stirring 20 wt% aqueous sodium hydroxide solution at a volume ratio of 2: 1 over 30 to 40 times, heating to 80 to 85 ° C. for 5 to 6 hours to allow a saponification reaction, and then leaving it to stand for 1 day, The waste liquid separated and settled in the lower layer was removed, and only the soap solution in the upper layer was removed, and then, water was added at 1 to 1.5 times the volume of the obtained soap solution and stirred for 5 to 6 hours while heating to 90 to 95 ° C., followed by A method of making a soap for making silk fabrics, comprising: preparing a soap by pouring into a mold and cooling. 40% by volume of cottonseed oil, 10% by volume of palm oil, 10% by volume of palm oil, 15% by volume of rice bran oil, 5% by volume of hardened oil, and 20% by volume of tallow are blended with 100% by volume of fats and oils. After stirring 20 wt% aqueous sodium hydroxide solution in a volume ratio of 2: 1 over 30 to 40 times, and then heating to 80 to 85 ℃ for 5 to 6 hours to perform a saponification reaction, and left for 1 day, the lower layer After the waste liquid separated and settled in the water was removed, only the soap solution in the upper layer was taken out, and then, water was added at 1 to 1.5 times the volume of the obtained soap solution and stirred for 5 to 6 hours while heating to 90 to 95 ° C., followed by plastic molding. A method of making a soap for the irradiation process of producing silk fabrics, comprising: pouring soap into a mold and cooling the soap. 40% by volume of cottonseed oil, 10% by volume of palm oil, 10% by volume of palm oil, 5% by volume of rice bran oil, 15% by volume of hardened oil, and 20% by volume of tallow are blended with 100% by volume of fat and oil. After stirring 20 wt% aqueous sodium hydroxide solution at a volume ratio of 2: 1 over 30 to 40 times, heating to 80 to 85 ° C. for 5 to 6 hours to allow a saponification reaction, and then leaving it to stand for 1 day, The waste liquid separated and settled in the lower layer was removed, and only the soap solution in the upper layer was removed, and then, water was added at 1 to 1.5 times the volume of the obtained soap solution and stirred for 5 to 6 hours while heating to 90 to 95 ° C., followed by A method for producing a soap for the refining process of silk fabric production, comprising: pouring soap into a mold and cooling to prepare soap. Soap for producing silk fabrics prepared by the method of claims 1 to 3.