KR102874412B1 - Natural fiber fabric and natural dyeing composition having antibiotics dyed cloth using the same - Google Patents

Abstract

This technology was started with the goal of developing a natural dyeing process that applies an environmentally friendly method to fabrics for daily necessities such as pillows, cushions, and blankets by grafting green tea oil and green tea powder, a local specialty of Boseong, onto an eco-friendly natural dyeing process that preserves the elegance and beauty of traditional Korean colors with deep natural colors that cannot be expressed with chemical dyes.
In order to maintain the dyeability of natural fibers and increase the fastness, the first step process is to refine the fabric to be dyed using green tea tannin, and then perform preliminary dyeing to increase the fastness using green tea leaf extract while adjusting the bath ratio of the alum mordant to improve the quality of natural fiber dyeing, and the second step process is to implement the color on the fabric using a natural raw material for imparting color to the fabric that has undergone the first step preliminary dyeing process, and the third step process is to prepare a functional dyeing solution by adding green tea oil, green tea powder, and a surfactant to a dyeing bath maintained at a temperature of 40 to 50 degrees to impart functionality by coating the fabric that has been colored by the second step process with old tea oil, a composition for reducing scalp itching and improving inflammation, and mixing/stirring, and the fabric that has been colored by the second step process is immersed in the functional dyeing solution obtained in the third step process, and then the functional dyeing solution is penetrated into the fabric while adjusting the pressing force between the upper and lower rollers that are controlled by the pressing force. It features a natural dyeing method technology for fabrics for daily necessities, including a four-step process of obtaining natural fiber fabrics by drying at high temperatures.

Description

Natural fiber fabric and natural dyeing composition using antibiotics dyed cloth using the same

The present invention relates to a natural dyeing method for improving the quality of mineral or natural material dyeing and securing antibacterial properties by increasing the color fastness to washing while maintaining the dyeability of natural fiber fabrics such as cotton, hemp, wool, and silk, and the present invention relates to a technology for a natural dyeing method for ensuring color fastness to washing while providing an antibacterial effect that does not cause skin diseases through physical contact when the fabrics for daily necessities such as pillows, cushions, and blankets are actually used by incorporating green tea oil extracted from green tea seeds into the dyeing process.

The inventor of this invention established and operates a social enterprise called Korea Natural Dyeing Sum, a non-profit organization, to transform Boseong into a natural dyeing town by recreating traditional Boseongpo (hemp cloth) in Buknae-myeon, Boseong-gun, Jeollanam-do. The company produces and sells clothing, bedding, and handicrafts using various natural fibers. The company has been recognized for the excellence of its products, having obtained business certification as a rural convergence industry from the Ministry of Agriculture, Food and Rural Affairs and quality certification from the Korea Tourism Organization. In a situation where many people avoid general dyeing processes due to the use of chemicals, products using Korea Natural Dyeing Sum's natural dyeing process reveal the colors and aesthetics of Korean tradition, so there have been many recommendations from those around us to plan them as export products not only domestically but also overseas. As a result, the company has been focusing on research to realize the possibility of natural dyeing using an environmentally friendly method at least for daily necessities such as pillows, cushions, and blankets.

Natural dyes have a deep natural color that cannot be expressed with chemical dyes, and their color is not only elegant and beautiful, but also gives a natural and warm feeling compared to synthetic dyes, and at the same time, depending on the type, they provide various functional properties such as antibacterial, anti-allergy, and anti-cancer properties. Therefore, we have been researching the possibility that natural dyes can provide not only health but also new vitality to modern people who are tired of life, and we have been trying to find a way to solve the problem of harmfulness to the human body, which is a shortcoming of chemical dyes and chemical fibers.

Meanwhile, the Boseong region of South Jeolla Province, where the applicant resides, is famous nationwide for its green tea fields, and the efficacy and effects of tea have been studied for a long time. The tea plant is Camellia sinensis, which belongs to the Theaceae family, and green tea, black tea, and oolong tea are produced from its leaves. Among them, green tea, unlike black tea or oolong tea, does not go through a fermentation process of the tea leaves, but is obtained by steaming fresh, young tea leaves to inactivate oxidation-related enzymes and stably maintain polyphenol components.

In addition, 30-40% of the polyphenol components found in green tea are known to be flavonols and catechins, and the main components of green tea catechins are epicatechin, epicatechin-3-gallate, epigallocatechin, and epigallocatechin-3-gallate (EGCG). Among these, epigallocatechin-3-gallate is known to have the highest content, and it has already been revealed through research that the polyphenol components of green tea have various beneficial effects such as antioxidant, anticancer, anti-inflammatory, and antibacterial effects.

The inventor of this patent has been seeking ways to satisfy new consumer needs by producing and selling clothing, bedding, and handicrafts made by introducing a dyeing process to various natural fibers, while at the same time making efforts to develop a natural dyeing process utilizing Boseong green tea ingredients in an original way in Boseong, taking advantage of the regional characteristics of the applicant's Boseong region.

However, textile fabrics using natural dyeing processes have lower color reproducibility than most textile fabrics dyed with chemical dyes, and have low fastness to light, human sweat, and washing processes. Therefore, for the commercialization of natural dyeing, it is a field that desperately needs technology to improve reproducibility and washing fastness, and this has remained an unresolved issue for a long time.

Looking at the prior art disclosed to apply the natural dyeing process in the related art, the technology of registered patent 10-0868335 is a technology related to a yellow clay dyeing method, which comprises the steps of refining the fabric and drying it; the step of preparing a pre-mordant by mixing milk, soybean juice, and water in a weight ratio of 2:1:40; the step of putting the fabric into the pre-mordant, kneading it, and drying it in the sun; the step of repeating the step of putting the dried fabric into yellow clay water containing salt dissolved therein at 70 to 100℃, kneading it several times, and drying it in the sun; the step of putting the fabric again into a mordant mixed with milk, soybean juice, and yellow clay in a weight ratio of 1:1:40, kneading it several times, and then drying it in the sun again; A technology is presented for improving the washing fastness of yellow clay dyeing through a yellow clay dyeing method comprising the steps of soaking the above fabric in a mordant mixed with yellow clay water (charcoal powder, salt, and alum in a weight ratio of 30-70:2-10:2-10) and boiling it for 5-7 hours; and the step of rinsing the above fabric 7-8 times and drying it in the sun.

In addition, the technology of registered patent No. 10-1431990 discloses a technology related to a fabric dyed using gardenia and illite and a method for manufacturing the same, which generates far infrared rays and negative ions beneficial to the human body and utilizes illite and gardenia to manufacture fabrics with antibacterial and deodorizing effects. The technology is disclosed for a method of dyeing fabrics such as cotton, silk, wool or non-woven fabrics using illite and gardenia, in which illite and gardenia used as dyeing ingredients are natural ingredients and non-cytotoxic, so that they can be used in underwear or bedding that come into direct contact with the skin.

In addition, the technology of registered patent No. 10-1685526 proposes a method of improving the fastness when dyeing mineral or charcoal by including agar in the dye solution, a method including a pretreatment process of immersing the dyed material in agar before dyeing, or a method including a process of immersing the dyed material in agar after dyeing.

However, with the recent increase in people's interest in health and the development of sleep science, people are looking for human-friendly products, even for daily necessities such as clothing made of natural materials and bedding such as blankets, mattresses, and pillows used for sleeping, and moreover, there is a demand for the development of dyeing methods for functional bedding fabrics that ensure antibacterial properties that do not cause skin diseases through physical contact and do not cause the growth of bacteria or microorganisms due to sweat and other organic substances such as fats and proteins secreted by the human body during their use.

The purpose of this center is to develop a natural dyeing process that can preserve the elegance and beauty of traditional Korean colors with deep natural colors that cannot be expressed with chemical dyes, by applying green tea oil and green tea powder, which are local specialties of Boseong, to the eco-friendly natural dyeing process and to use it to make fabrics for daily necessities such as pillows, cushions, and blankets, using an eco-friendly method to implement the colors of traditional Korean colors.

In addition, the technical task of this institute is to develop a natural dyeing method for natural fiber fabrics that secures both wash fastness and antibacterial properties by combining a preliminary dyeing process to increase the wash fastness of the dyeing source during the dyeing process of natural fiber fabrics used as materials for daily necessities such as pillows, cushions, and blankets, a process for obtaining colored fabrics using natural materials from the fabrics that have undergone the preliminary dyeing process, and a process for imparting functionality to the above-mentioned raw fabrics by applying green tea oil.

The present invention can be implemented as a natural dyeing method for fabrics for daily necessities such as pillows, cushions, and blankets as a means to achieve the above purpose, and the technical idea of the present invention is a natural dyeing method for fabrics for daily necessities such as pillows, cushions, and blankets, which comprises a first step process in which the fabric to be dyed is refined using green tea tannin and green tea powder to increase the dyeability of natural fibers and improve the dyeing quality, and then preliminary dyeing is performed to adjust the bath ratio of the alum mordant and to increase the color fastness to washing, and a second step process in which the fabric undergoes the first step preliminary dyeing process and a color is implemented on the fabric using natural plant materials that provide a color selected from among blue, red, yellow, purple, and brown, and a third step in which the fabric given color by the second step process is coated with green tea oil, and green tea low-temperature extract, lacquer press extract, and surfactant are added to a dyeing bath maintained at a temperature of 40 to 50°C and mixed/stirred to prepare a functional dye solution. The invention is characterized by a natural dyeing method for a material fabric for daily necessities, which comprises a fourth step process of obtaining a natural fiber fabric that secures color fastness to washing and antibacterial properties by immersing a fabric imparted with a color obtained in a second step process in a functional dyeing solution obtained in a third step process, and then impregnating the fabric with the functional dyeing solution while controlling the pressing force between upper and lower rollers with controlled pressing force, and then drying it at a high temperature to remove moisture. The invention is completed by confirming that the purpose of the present invention can be achieved by featuring a natural dyeing method for a material fabric for daily necessities, which comprises a fourth step process of obtaining a natural fiber fabric that secures color fastness to washing and antibacterial properties by controlling the pressing force between upper and lower rollers.

In the natural dyeing method of the daily necessities material fabric of this institute, in the first step, the bath ratio is applied by adding 10 wt% of green tea tannin of the fabric weight and filling it with water, and adding 20 times the process water of the fabric weight, and the internal temperature of the bath is maintained at 70±5℃ and the preliminary dyeing can be applied for 60±5 minutes. In the natural dyeing method of the daily necessities material fabric of this institute, when giving color in the second step, indigo is used if it is desired to provide a blue color, cochineal is used if it is desired to provide a red color, onion husk is used if it is desired to provide a yellow color, purple licorice is used if it is desired to provide a purple color, and persimmon juice is used if it is desired to provide a brown color. In the third step, the bath ratio can be applied so that a functional dyeing solution is prepared by using 3 to 5 parts by weight of green tea oil and lacquer press extract of the process water and 0.1 to 0.01 parts by weight of a surfactant of the process water based on 100 parts by weight of the process water.

Accordingly, the present invention relates to a natural dyeing method for a daily necessities material fabric and a method for using the same, a first step process in which the fabric to be dyed is refined using green tea tannin and green tea powder to increase the dyeability of natural fibers and improve the dyeing quality, and then preliminary dyeing is performed to adjust the bath ratio of the alum mordant and to increase the color fastness to washing, and a second step process in which one of the following is selected to implement the desired color: indigo is used if it is desired to provide a blue color, cochineal is used if it is desired to provide a red color, onion husk is used if it is desired to provide a yellow color, purple licorice is used if it is desired to provide a purple color, and persimmon is used if it is desired to provide a brown color, in order to impart a color to the fabric imparted by the first step process, and a third step process in which green tea oil, a low-temperature green tea extract, a lacquer press extract, and a surfactant are added to a dyeing bath maintained at a range of 40 to 50°C and mixed/stirred to prepare a functional dye solution, and the above The present invention can be implemented as a dyeing process for a fabric for daily necessities and a method for using the same, which comprises a fourth step process of obtaining a natural fiber fabric by immersing a fabric with a color obtained in a second step process in a functional dyeing solution obtained in a third step process, and then permeating the functional dyeing solution into the fabric while adjusting the pressing force between upper and lower rollers with controlled pressing force, and then drying it at a high temperature to remove moisture to secure color fastness to washing and also secure antibacterial properties, and a fifth step process of using the natural color fiber fabric obtained through the fourth step process as a fabric for daily necessities such as pillows, cushions, and blankets.

This technology applies a natural dyeing process to natural fiber fabrics used for bedding such as blankets, mattresses, and pillows, providing the elegance and beauty of colors with visually profound natural colors, and not only providing beautiful traditional Korean bedding, but also providing bedding that has antibacterial properties so that there is no risk of bacteria or microorganisms breeding due to sweat and other organic substances such as fats and proteins secreted from the human body during use, and no risk of skin disease caused by physical contact.

Furthermore, the hospital provides bedding that provides the effects of green tea ingredients, such as the skin disease relief effect, nerve stabilization, deep sleep, and blood circulation promotion, by using green tea oil and green tea extracts obtained from green tea, a specialty of Boseong, Jeollanam-do, to provide functionality.

Figure 1 is a test report to confirm the washing fastness and antibacterial properties after the natural dyeing method provided by the present invention is applied to the material fabric for daily necessities.
Figure 2 is a photograph of the culture of the test sample and the control group.

Before describing the implementation details of the invention to implement the technical idea of the present application as an example, it should be noted that the terms or words used in the specification or claims of the present application should not be interpreted as limited to their usual or dictionary meanings, and the scope of protection of the present application should be interpreted as meanings and concepts that are consistent with the technical idea of the present invention, and the examples described in the present specification are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present application. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing the present application.

When a dyeing process is applied to fabric, the bond between the dye and the fiber is thought to be due to the dye being physically attached to the pores of the fiber and fabric rather than through chemical bonding, so there is a problem that the dye is easily removed by external stimuli such as washing.

To reduce these problems, attempts have been made to use tannin treatment, glue treatment, chitosan, cationic surfactants, etc. during dyeing. Some of these have been proven effective, but most of them have not had a clear effect according to the treatment.

Hereinafter, specific details for implementing a natural dyeing method for a daily necessities material fabric in the present invention will be described in detail through examples and test examples, and the present invention is by no means limited to the specific numbers and methods in the examples.

1. The first step of the process is to perform preliminary dyeing.

In order to improve the quality of natural fiber dyeing by maintaining the dyeability of natural fibers and increasing the color fastness to washing, the fabric to be dyed was refined using green tea tannin, and then the preliminary dyeing process was applied as follows to increase the color fastness to washing by adjusting the bath ratio of the alum mordant using green tea leaf extract.

Application example of preliminary color process

The weight of the fabric provided by Jeonju Shinhan Spinning Co., Ltd. was measured to be 20.5 kg, and 2.1 kg of green tea tannin and 2.0 kg of Boseong green tea powder were added in the range of 10 wt% of the fabric weight, and 0.6 kg of alum was added in the range of 3.0 wt% of the fabric weight. When filling the water, 40 liters of process water was added in the range of 20 times the fabric weight, and the preliminary dyeing was applied so that the internal temperature of the bath was maintained at 70±5℃ and the pre-dyeing was performed in the range of 60±5 minutes.

2. In the second step process of implementing color in the fabric applied in the first step by utilizing natural raw materials, examples of application of the desired color to natural fibers include, for example, indigo dyeing is used when a blue color is desired, cochineal dyeing can be used for a red color, onion skin dyeing is used for a yellow color, licorice dyeing is used for a purple color, and persimmon dyeing is used for a brown color.

As an example of a specific embodiment of the second stage process of the present invention, when it is desired to provide a blue color to a textile fabric, an example of an application indigo is used to implement the color by adjusting the weight ratio of indigo dye extracted from indigo plant and lye (water made by burning rice straw and lye) to 1 part indigo dye: 5 to 10 parts lye, maintaining the pH of the dye solution concentration inside the bathtub in the range of 10 to 12, and fermenting for more than a week, then dyeing for about 2 to 3 minutes, rinsing once, and then repeating the dyeing if a darker color is desired, thereby obtaining a natural fiber with the desired blue color.

When it is desired to provide a red color to natural fibers, an example of using cochineal to implement the color is to crush 2.5 g of cochineal in a mortar and pestle into a powder, add 0.25 g of potassium carbonate to 1.5 liters of water in a separate container, add the cochineal powder, boil for 10 minutes, filter out the residue to obtain a dye solution, mix 150 ml of a 10% acetic acid solution into the dye solution, and add water to prepare a dye solution so that the total amount of the solution becomes 3 liters.

The dyeing material is pre-soaked in water, the moisture is squeezed out, 2.5 g of alum dissolved in 3 liters of water is soaked for 10 minutes at 60°C, and the pre-mordanting treatment is performed. The pre-mordanting treatment is then performed by placing the fabric in the dyeing solution, increasing the temperature of the bath, dyeing is performed for 20 minutes at 80°C, and then drying to obtain a natural fiber that provides a red color.

An example of an application where onion skin is used when obtaining a yellow color is to boil 50 parts of onion skin in 4 liters of water for 20 minutes to extract the pigment, then filter out the dye, add water so that the total dyeing solution becomes 4 liters, spread the pre-wetted dyeing material in the 30℃ dyeing solution, and gradually increase the temperature until it reaches 80℃, dye at that temperature for about 20 minutes, and then rinse the dyeing material thoroughly in running water.

For post-treatment, add 3g of alum to 4ℓ of water to make a mordant solution at 50-60℃, put the dyed material into the mordant solution, perform a post-treatment process at 60℃ for about 10 minutes, and dry in the shade to obtain a natural fiber with a yellow color.

An example of using purple licorice is to soak 50g of licorice root in 2ℓ of methanol for 3-4 hours, filter it, and add 2ℓ of water to the extracted dye to use it as a dye.

For the pre-dyeing process, dissolve 5g of alum in 1L of lukewarm water, then add 1L of water and soak the wet dyed material for about 20 minutes.

If the pre-mordanted fabric is lightly washed in water, spread out well, soaked in the dye solution, dyed for more than 30 minutes, and dried, a natural fiber that provides a purple color can be obtained.

In one embodiment where brown color is desired, persimmon dyeing is applied by filtering persimmon juice through a sieve (filter cloth) and placing it in a wide-bottomed container, spreading out the dyeing material (cloth) well and placing it in the container and shaking it to ensure good absorption, and then after about 30 to 40 minutes, when the dyeing material soaked in persimmon juice is beaten or stepped on to ensure good absorption of the persimmon juice, and then fixing both ends and the center of the dyed cloth and performing a drying process, a natural fiber providing a brown color can be obtained.

3. The third step is to provide functionality to the colored fabric.

The inventor of the present invention has prepared a functional dyeing solution by coating the fabric obtained through the above two-step process with green tea oil to provide an antibacterial effect that does not cause skin disease through physical contact when used as a material for daily necessities such as pillows, cushions, and blankets, and thereby providing functionality. The functional dyeing solution is prepared by mixing 0.6 kg of green tea oil at a ratio of 3 wt% of process water, 1.0 kg of green tea low-temperature extract at a ratio of 5 wt% of process water, 1.0 kg of lacquer extract at a ratio of 5 wt% of process water, and 0.1 kg of a surfactant (polyoxyethylene nonylphenyl ether) to enhance the color dispersion effect in 20 L of water.

The green tea low-temperature extract used in the above 3rd step process is a specialty product of Boseong, sold as Chayeonmu (trade name) by Boseong Quantum Green Tea Co., Ltd. It is extracted from dried green tea leaves without water and solvent using a reduced pressure distillation method, so that the water structure is composed of very small particles, making it easy to form an emulsion, and it is also used to simultaneously remove acidic or basic endogenous components that are the main cause of bad odor.

In addition, lacquer juice extract is also a specialty of Boseong and is produced by Solhyang Lacquer Co., Ltd. It is obtained by crushing lacquer trees grown in the Boseong area in the sea breeze and then squeezing them with an industrial press. The lacquer juice extract is obtained by neutralizing the flavonoid sap in the lacquer heartwood and the urushiol in the lacquer bark.

4. After the fabric with the color obtained in the second step process was immersed in the above functional dye solution in a bath for about 30 minutes, the pressure between the upper and lower rollers with adjustable compression force was adjusted to 10 to 12 kg/㎠ using a padding mangle machine manufactured by Kangwoo Machinery Co., Ltd., and the functional dye solution was permeated into the fabric. Then, the fabric was transferred and dried at a speed of 3.17 cm/sec in a transfer drying oven maintained at 150±5℃, thereby obtaining a functional natural fiber fabric.

In order to conduct antibacterial tests for washing fastness and dyeing properties of natural fiber fabrics obtained through the above process, the Korea Apparel Testing & Research Institute at 164 Palgwajeong-ro, Deokjin-gu, Jeonju-si was requested to conduct the tests.

The color fastness measurement test was conducted in accordance with the KS K ISO 105-C06: 2010A2s standard, and the three sample products, Beige, Blue 1, and Blue 2, were judged to have a color change and fading grade of 4, a contamination (cotton) grade of 4-5, and a contamination (wool) grade of 4-5.

Therefore, it was confirmed that the washing fastness of the sample product applied with the original technology as a natural dyeing method for the material fabric of daily necessities showed a value of 4 or higher, and in the case of cotton and wool fabrics, it showed a very high fastness of 4-5.

For antibacterial testing, KS K 0693: 2016 is applied.

Test group ① When the inoculum was applied at a concentration of 1.1×10 ⁵ cfu/㎖ to Staphylococcus aureus ATCC 6538 (Staphylococcus aureus), it showed an antibacterial effect of 99.9%, and test group ② When the inoculum was applied at a concentration of 1.3×10 ⁵ cfu/㎖ to Klebsiella pneumoniae ATCC 4352 (Klebsiella pneumoniae), it showed an antibacterial effect of 68.9%.

The test results notified by the Korea Apparel Testing & Research Institute based on the above experimental results are attached as Figure 1, and Figure 2 shows a photograph of the culture of the test sample and the control group.

Therefore, by incorporating green tea oil extracted from green tea seeds into the dyeing process of our center, we can obtain a fabric for daily necessities such as pillows, cushions, and blankets that provides an antibacterial effect that does not cause skin diseases through physical contact when used in real life. The green tea oil (crude oil) used in our center can be selected from among oils extracted from seeds belonging to the camellia oil, tea seed oil, and Camellia sinensis seed species. When used in functional bedding, camellia oil is added together with green tea oil to positively induce the mood and psychological state of the human body, and the effect of providing a subtle camellia scent can be obtained.

The above description is merely an example to help the present invention be easily understood, and a person having ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention.

The technical idea of the present invention is not limited to the above description, and should be protected to the extent that it is equivalent to the technical composition indicated in the patent claims.

Figure 1 is a test report for confirming the washing fastness and antibacterial properties after the natural dyeing method provided by the present invention is applied to a material fabric for daily necessities, and Figure 2 shows a photograph of the culture of the test sample and the control group, and no separate explanation of symbols is necessary.

Claims (5)

In the natural dyeing method of natural fiber fabrics used as materials for daily necessities,
The first stage process is to refine the fabric to be dyed using green tea tannin and green tea powder to increase the dyeability of natural fibers and improve the dyeing quality, and then adjust the bath ratio of the alum mordant and perform preliminary dyeing to increase the washing fastness.
In order to provide color to the fabric that has been pre-dyed through the first step process, a second step process is performed to implement color on the fabric using natural plant materials that provide the desired color among blue, red, yellow, purple, and brown.
The third step process is to prepare a functional dye solution by adding green tea oil, green tea low-temperature extract, lacquer press extract, and surfactant to a dyeing tank maintained at a temperature of 40 to 50°C as a separate preparation process and mixing/stirring them.
A natural dyeing method for natural fiber fabrics, characterized by comprising a fourth step process of obtaining a natural fiber fabric that secures color fastness to washing and also secures antibacterial properties by immersing a fabric imparted with a color obtained in a second step process in a functional dyeing solution obtained in the third step process, obtaining a fabric in which the dyeing solution has been permeated while controlling the pressing force between upper and lower rollers with controlled pressing force, and then drying the fabric. In the first paragraph,
A natural dyeing method for natural fiber fabrics, characterized in that in the first step process, a bath ratio of 10 wt% of the fabric weight of green tea tannin is added and water is filled, and a bath ratio of 20 times the fabric weight of process water is added, and the bath temperature is maintained at 70±5℃ and the pre-dyeing is performed for 60±5 minutes. In the first paragraph,
A natural dyeing method for natural fiber fabrics characterized in that, when providing the color in the second step, indigo is used if a blue color is desired to be provided, cochineal is used if a red color is desired to be provided, onion skin is used if a yellow color is desired to be provided, purple is used if a purple color is desired to be provided, and persimmon is used if a brown color is desired to be provided. In the first paragraph,
A natural dyeing method for natural fiber fabrics, characterized in that in the third step process, a functional dyeing solution is prepared by using 3 to 5 parts by weight of green tea oil and lacquer press extract based on 100 parts by weight of process water and 0.1 to 0.01 parts by weight of surfactant based on process water. In terms of the use of living goods material fabrics made of natural fibers,
The first stage process is to refine the fabric to be dyed using green tea tannin and green tea powder to increase the dyeability of natural fibers and improve the dyeing quality, and then adjust the bath ratio of the alum mordant and perform preliminary dyeing to increase the washing fastness.
In order to provide color to the fabric that has undergone the first preliminary dyeing process, indigo is used if you want to provide a blue color, cochineal is used if you want to provide a red color, onion skin is used if you want to provide a yellow color, purple is used if you want to provide a purple color, and persimmon is used if you want to provide a brown color. One of these is selected and applied to realize the desired color.
A separate process for imparting functionality to the fabric colored by the above-mentioned second-stage process by applying green tea oil is performed in a third-stage process in which green tea oil, green tea low-temperature extract, lacquer press extract, and surfactant are added to a dyeing bath maintained at a temperature of 40 to 50°C and mixed/stirred to prepare a functional dye solution.
The fourth step process is to obtain a natural colored fiber fabric that secures color fastness to washing and antibacterial properties by immersing the colored fabric obtained in the second step process in the functional dye solution obtained in the third step process, and then allowing the functional dye solution to penetrate the fabric while controlling the compression force between the upper and lower rollers with controlled compression force, and then drying it.
A method of using a fabric for a daily necessities material, characterized in that it comprises a fifth step process of using the natural color fiber fabric obtained through the fourth step process as a fabric for a daily necessities material selected from among pillows, cushions, and blankets.