KR101554433B1 - Natural dying method using zizania latifolia - Google Patents

Abstract

The present invention relates to a natural dyeing method using Zizania latifolia. The method includes the steps of: extracting dyes from Zizania latifolia using a hot water extraction method or a solvent leaching method; pre-processing a dyeing target with Rhus javanica, chitosan, tannin, or Diospyros kaki juice; and dyeing the pre-processed target with the dye extracted from Zizania latifolia. The dye extracted from Zizania latifolia can be used as a powder dye prepared after a concentrating step and a drying step. The Zizania latifolia dye extraction method can vary according to the dyeing target. The concentration of the dye and the time and temperature of the dyeing operation can be adjusted to enable the optimal dyeing operation using the Zizania latifolia dye after the pre-processing step.

Description

{Natural dying method using zizania latifolia}

The present invention relates to a natural dyeing method of silkworm, and more particularly, to a novel method of dyeing a variety of dyed materials with high quality using dyes extracted from silkworm.

Natural dyeing is a field of traditional handicraft that uses natural dyes to water fabrics without using chemical dyes. Charcoal, loess, gardenia, persimmon, and wormwood are often used as natural dyes. For example, it can be used as an excellent natural dye by recycling onion peel, grape skin, and tangerine peel.

Natural dyeing products are eco-friendly, so they are less irritating to the human body and are good for sensitive skin. In addition, since vegetable colorants are mixed with various pigments, natural and deep colors can be expressed. When a mordant is used, it is possible to dye with a specific color.

On the other hand, since natural dyeing is easily faded due to sunlight, washing, sweat, etc., except for a part such as side dyeing, it is much lower in fastness than chemical dyeing, and there is a disadvantage that a lot of time and effort are required in dye extraction and dyeing process have. In particular, for the kind of dyes and desired coloring, it is necessary to change the environmental conditions such as extraction of dyes, temperature, and moisture, and the addition is required or the dyeing process such as mordanting is complicated. Therefore, it is troublesome to have necessary equipments even when natural dyes are used as a hobby, and it is difficult and costly to reproduce high quality natural dye products in industrial aspect.

In order to reproducibly produce high-quality garments through natural dyeing and industrial mass production, it is necessary to develop new dyes suitable for various dyestuffs, and a process that can maintain the fastness and improve the durability after dyeing is required.

The present invention has been developed under the technical background described above, and an object of the present invention is to provide a novel dye which is suitable for natural dyeing, and which is excellent in reproducibility and productivity.

Another object of the present invention is to provide a natural dyeing process capable of coloring dyes of various materials.

Another object of the present invention is to provide a natural dyeing method excellent in various functions such as ultraviolet barrier property, deodorizing property and antimicrobial property while maintaining fastness due to sunlight, washing, sweat and the like and having excellent durability.

Other objects and technical features of the present invention will be more specifically described in the following detailed description.

In order to accomplish the above object, the present invention provides a method for preparing a dye-extracted dye, which comprises extracting a dye by hot water extraction method or solvent leaching method from a silk thread, pretreating the dyed material with a rhizome, chitosan, tannin, And a step of dying.

The dyes extracted from the gypsum can be dyed after being concentrated and dried.

In the present invention, when pretreatment with rhizomes, the dyes can be pretreated by immersing the solution in a solution having a rhizome concentration of 0.1% to 5% owf in a solution ratio of 1:10 to 1: 100. In the case of pretreatment with chitosan, the dyestuff can be pretreated by immersing it in a solution of 0.1 wt% to 5 wt% of chitosan in an aqueous acetic acid solution. In addition, when pretreated with tannin, the dyestuff can be pre-treated by immersing the solution in a solution having a tannin concentration of 0.1 to 10% owf in the range of 1:10 to 1: 100. On the other hand, in the case of pretreatment with juice, it may further include a step of pretreatment using fermented juice and heat-developing in sunlight or in a drying oven.

According to the present invention, it is preferable that the concentration (owf) of the dyes is 50% to 500% when the dyes are dyed with the yellow dye through the pretreatment step, and the dye temperature is preferably 40 to 120 ° C. When dyeing with a yellow dye, the dyeing time is preferably from 40 to 100 minutes, and the pH of the dye is preferably from 3 to 7.

The present invention also provides a yarn-dyed natural dyed fabric prepared by a pretreatment process and a dyed dye dyeing in the above-described manner.

According to the present invention, it is possible to provide a natural dyeing method which is reproducible for various kinds of dyes and has excellent quality, by developing a yellow dye which is suitable for natural dyeing. It is also suitable for cotton, nylon, cotton fabrics, etc., and natural dyeing of dyes is possible.

According to the method of the present invention, dyeing with excellent durability can be carried out, and productivity and reliability of natural dyeing can be improved by fastness to sunlight, washing, sweat and the like.

Particularly, the dyed dyes dyed according to the present invention are excellent in functionality such as ultraviolet barrier property, deodorizing property, antimicrobial property, and can be effectively used for bedding, clothing, and the like.

FIG. 1 is a photograph showing the result of dyeing after pretreatment of various kinds of dyes
FIG. 2 is a photograph showing the result of the dyeing test using the hot water-extracted dye after the pretreatment
FIG. 3 is a photograph and a graph showing the result of dyeing after varying the dye concentration after the pretreatment
FIG. 4 is a photograph and a graph showing the result of dyeing by changing the dye temperature after the pretreatment
FIG. 5 shows photographs and graphs showing the results of staining by changing the dyeing time after the pretreatment
FIG. 6 is a photograph showing the results of dyeing by changing the pH of the dye after the pretreatment
FIGS. 7A and 7B are photographs showing the cultures of the specimens stained with thrips after the pretreatment with the control group and chitosan, respectively
FIGS. 8A and 8B are photographs of cultures of control and tannin-pretreated samples, respectively,
FIGS. 9A and 9B are photographs of cultures of control specimens and juvenile-stained specimens after pre-
10a and 10b are photographs of cultures of the control group and the dorsal root-stained specimens after pretreatment

The present invention proposes a natural dyeing method in which coloring and fastness are maintained to a great extent with various dyes using dyes extracted from gypsum.

Zizania latifolia Turcz is a perennial plant that is a perennial herbaceous plant of the liana, and has been called from ancient times as 菰, 菰 蔣 草, 菰 菰, 줄, 소,, . In addition, it grows in a pond or stream, and grows thick and short roots in the mud as it grows to the side. Its height grows about 1 ~ 2m and it is called wild rice in foreign countries because it is similar to rice.

Since the perennial herbaceous plant is easy to grow even in a brook, it is easy to purchase it as a raw material for natural dyeing or to mass-grow it.

Julpul contains the most germanium components. Leaves, roots and stems contain protein, essential oil, ash, minerals, manganese, calcium, etc. The fruit contains starch, sugar and various trace elements. Because of these beneficial ingredients, gypsum has long been used as a medicinal herb. For example, dried leaves and roots in the shade, and then boiled in tea, it is said that it is effective for many diseases as a panacea, and it strengthens the stomach and intestines, and strengthens the stomach and intestines. It is said to be effective not only in all kinds of diseases but also in all kinds of poisons in the body.

According to the herbaceous gangmok (roe), the roots of the gypsum roots are well documented, the urine is good, the roots of the bowels are strong, the drunks are broken, the digestion is helped, and the thirst does not occur.

The inventors of the present invention have developed a natural dyeing method which is excellent in coloring property and durability against various dyed materials by using dicotyledonous roots having such an effect as a raw material for natural dyeing.

According to the dyeing method of the present invention, the dyestuff obtained by extracting the dyestuff from the dentifrice and pulverizing and drying the extracted dyestuff can be used for dyeing at a proper concentration. The dyed materials can be naturally dyed using nylon, cotton, wool, silk fabrics, etc., and can be pretreated with dwarf, chitosan, tannin, or juice to improve dyeability and fastness.

The dyes can improve the pretreatment effect and dyeability through the refining process before pretreatment. The dye of the present invention may be used in a different dyeing method depending on the type of the dye.

In the present invention, in the case of pretreatment with dumbbells, the dyestuffs are immersed in a solution of dumbbell concentration of 0.1% to 5% owf, for example, in the range of 1:10 to 1: 100 of the liquid ratio (ratio of the pre- Can be preprocessed. When pretreated with chitosan, the dyestuff can be pretreated by immersing it in a solution of 0.1 wt% to 5 wt% of chitosan in an aqueous acetic acid solution. In addition, when pretreated with tannin, the dyestuff can be pre-treated by immersing the solution in a solution having a tannin concentration of 0.1 to 10% owf in the range of 1:10 to 1: 100. The concentration and amount of each pretreatment material can be varied depending on the type of the salt or depending on the desired degree of dyeing.

In the case of pretreatment with juice, it may further include a step of pretreatment using a fermented juice and heat-developing in sunlight or a drying oven. In the case of pale dyeing, the step of coloring can be omitted or reduced.

According to the present invention, it is preferable that the concentration (owf) of the dyes is 50% to 500% when dyeing the dyes with the yellow dye through the pretreatment step, the temperature of the dyes is preferably 40 ° C to 120 ° C, The time is preferably 40 to 100 minutes, and dyeability and fastness can be optimized by adjusting dye concentration, dye temperature and dyeing time according to the type of the salt and the pretreatment material.

Hereinafter, a method of effectively dyeing various materials using the dye extracted from the silkworms will be described in more detail with reference to specific examples.

Manufacture of dyes

1. Dye extraction

In the present embodiment, three kinds of roots of different production sites were used as raw materials for dye extraction.

First, dye was extracted from each sample by water extraction. 50 g of each sample was taken in 2 L of distilled water and extracted at 80 ° C for 3 hours. This procedure was repeated three times in total. At this time, in order to increase the extraction yield, a small sample was cut and used so that the penetration of water was easy. The extracted dye solution was brownish.

Next, the dye was extracted by solvent extraction for each sample. 50 g of each sample was taken in 2 L of 80% EtOH (ethyl alcohol) and extracted with stirring at 350 rpm for 3 hours. This procedure was repeated three times in total. Also in this case, to increase the extraction yield, a small sample was cut and used so that solvent penetration was easy. The extracted dye solution showed green color different from hot water extraction.

2. Concentration of salt and powdering

The salt solution obtained by hot water extraction and solvent extraction was concentrated using a rotary evaporator. The concentrated salt solution was dried with a Freeze-Dryer to be powdered.

Dyeability test of extracted dye

The dyes extracted with hot water and ethyl alcohol were used to stain multi - fabric mixed wool, nylon and cotton. The dyeing temperatures were 17 ° C (room temperature), 40 ° C and 70 ° C, respectively. As a result of dyeing, wool and nylon were relatively good in dyeability, but dyeability of cotton fiber was very low.

The dyes were tested for wool, cotton, nylon and silk fiber using an IR stainer. The dyes were extracted with hot - water extractant and dyed with 300 ml of saline solution. The starting temperature of the IR dyeing machine was 40 ° C, 45 seconds of inverter, 60 seconds of heating, 10 minutes of heating at 100 ° C, 60 minutes of holding at 100 ° C, and 30 minutes of cooling at 20 ° C. Dyeing showed relatively good dyes in wool, nylon and silk fiber, but dyeability of cotton fiber was low.

The dyeing properties of cotton, nylon and silk fiber according to the dye extraction method were compared using an IR stainer. As a result, 150 ml of dye solution was prepared by hot water - extracted dye powder and ethyl alcohol - extracted dye powder, respectively. As a result, it was confirmed that dyeing was performed by dyeing using ethyl alcohol extract dye rather than hot water extraction.

Pretreatment process and effect

Various pretreatments were performed on the dyed materials before dyeing to improve dyeability.

1. Pretreatment with cationic and anionic agents

Before dyeing, cotton fibers and multi - fabric were pretreated with a cationizing agent. Ten percent owf (on the weight of fiber) of cationic agent was pretreated for 20 minutes at 70 ° C, and then dyed at 40 ° C and 70 ° C using dyes extracted with hot water and ethyl alcohol. The cationic agent pretreatment surface, untreated surface, and multi-fabric were put in, and the dyeability at each temperature condition was examined.

The cotton fiber and the multi-fiber fabric were pretreated with a cationizing agent and an anionizing agent, respectively. The treatment conditions were 10% owf, 70 ° C, 20 min, 10% NaOH, and the conditions for treatment with anionizing agent were 3% owf and 60 ℃ for 20 min. After pretreatment with cationic and anionic agents, dyeing was carried out at 40 ℃ and 70 ℃ using hot water extraction and ethyl alcohol extraction. As a result of testing the dyeing properties of the cationic agent pretreatment surface, the anionizing agent pretreatment surface, the untreated surface, and the multi-fabric at each temperature condition, it was confirmed that dyeing was hardly observed.

2. Pretreatment with cationic agent

Before dyeing, pretreatment with cationic agent and pretreatment with excipient dyeing were performed. The cationic agent treatment conditions were 5% ows (on the weight of solution), 70 ℃, 20 minutes, 1:50 liquid ratio, and fermented impurities were used in pretreatment.

The dye solution was prepared by using 150 ml of dye solution with hot dye extraction and ethyl alcohol extraction dye powder. The dye solution was prepared by using an IR dyeing machine at a starting temperature of 40 ° C, an inverter of 45 times of 60 seconds, a temperature of 10 minutes of 60 ° C, , And cooling was carried out for 30 minutes at 20 ° C. After each pretreatment, the cationic agent was found to be less effective than the juice treatment.

* Daylight fastness due to pretreatment (cationic agent, impregnant dyeing)

Untreated nylon, silk fiber and preprocessed (cationic, dyed) cotton fibers were prepared and measured for light fastness according to KS K 0700. Table 1 shows the results of evaluating fastness using gray scale.

The fastness of the dye samples was better than that of the dye extracts of hot water extracts.

* Washing fastness according to pretreatment (cationic agent, affection dyeing)

Untreated nylon, silk fiber and pretreated (cationic, dyed) cotton fibers were prepared and washed fastness was measured according to KS K 0430, KS K 0903. Table 2 shows the results of evaluating fastness using gray scale.

It was confirmed that washing fastness of dyeing fabric with cationic agent pretreatment was low, and it was confirmed that it is necessary to use other pretreatment agent which can improve washing fastness.

3. Pretreatment of chitosan, tannin, and dwarf

Cotton, silk, nylon, and multi - fabric were pretreated with rhizomes, chitosan, and tannin before yellowing. The pretreatment of Rhus javanica was pretreated with a solution of 1:50 and 1% owf solution. In the case of pretreatment with chitosan, 1% acetic acid solution was mixed with 1% chitosan, and the solution was pre-treated by immersing the dyestuff in the solution. In tannin pretreatment, pretreatment was carried out at a concentration of 1:40, 5% owf, at 60 ° C to 90 ° C for 15 minutes, followed by cooling for 2 hours. After tannin treatment, it was treated with a fixing agent (tin oxide, 2.5% owf) at 40 ° C for 20 minutes.

Next, dyeing effects of dye extraction method (hot water, ethanol) and pretreatment agents (dwarf, chitosan, and tannin) were compared and tested. Dyeing was performed on hot - water pretreatment, chitosan pretreatment, tannin - pretreated cotton, silk and nylon fabrics using hot water extraction and ethyl alcohol - extracted salt solution, respectively. Using an IR stainer, dyeing was carried out under conditions of a starting temperature of 40 ° C, an inverter of 45 times for 60 seconds, a temperature elevation of 10 minutes at 60 ° C, a holding time of 60 minutes at 60 ° C and a cooling time of 30 minutes at 20 ° C. (See Fig. 1).

* Light fastness due to pretreatment of chitosan, tannin and rhizome

Cotton, silk, and nylon were pretreated with chitosan, tannin, and sodium hypochlorite, followed by dyeing with hot water extraction dye and ethanol extract dye, respectively, and light fastness was evaluated according to KS K 0700. After 20 hours, the color was determined to be fading color. The results are shown in Table 3.

The results of the measurement of the light fastness for each dyed dye after pretreatment show that the dye fastness of dye dye using ethanol extract dye is much lower than that of dyed dye using hot water extraction dye.

* Fastness to perspiration due to pretreatment of chitosan, tannin and rhizome

Cotton, silk, and nylon were pretreated with chitosan, tannin, and sodium hypochlorite, followed by dyeing with hot water extraction dye and ethanol extract dye, respectively, and sweat fastness was evaluated according to KS K 0715. The discoloration of the specimens was evaluated by decolorizing gray scale for discoloration, and the degree of contamination of the white cotton cloth was graded with a gray scale for contamination. The results of sweat fastness evaluation are shown in Table 4.

As a result of the evaluation, it was confirmed that the fastness of sweat fastness of the dyeing dyed with ethanol extract dye was lower than that of dyed dyed dye.

* Wash fastness according to pretreatment of chitosan, tannin,

Cotton, silk, and nylon were pretreated with chitosan, tannin, and sodium hypochlorite, followed by dyeing with hot water extraction dye and ethanol extract dye, respectively. Wash fastness to neutral detergent was evaluated according to KS K 0430 and KS K 0903. In the standard light source, the degree of discoloration of the test piece and the degree of contamination of the contaminated cloth were determined by grayscale, and the results are shown in Table 5.

As a result of the evaluation, it was confirmed that the washing fastness of the dyed fabric using the ethanol extract dye was lower than that of the dye dye using the hot water extraction dye.

Dyeability test by pretreatment

In order to confirm the pretreatment effect more precisely in the hydrothermal extraction dyeing cloths having excellent fastness results in the preceding examples, dyeing properties were compared and tested.

The pretreated cotton fabrics were dyed in hot water extract. Chitosan pretreated cotton, silk and nylon fabrics were dyed with hot water extract and dyed with tannin pretreated cotton, silk and nylon fabrics.

Dyeing was carried out using an IR stainer. The dyeing conditions were as follows: the starting temperature was 40 ° C, the inverter was 45 times 60 seconds, the temperature was 10 minutes, 60 ° C, 60 minutes was 60 ° C, and cooling was 30 minutes and 20 ° C. The results after pretreatment and staining are shown in Fig. As a result of the test, it was confirmed that the dyeing effect of the tannin pretreated dyed fabric was lower than that of dicotyledonous and chitosan.

* Perspiration fastness of dyed fabric using hot water extraction dye

Cotton, silk, and nylon were pretreated with chitosan, tannin, and sodium hypochlorite, followed by dyeing with hot water extraction dye, and sweat fastness was evaluated according to KS K 0715. Table 6 shows the results of sweat fastness evaluation by grading the degree of contamination of the white cotton cloth with gray scale for staining.

As a result of measuring the sweat fastness, it was confirmed that the acidic sweat liquid and the alkaline sweat liquid belonged to the superior category on the basis of natural dyeing.

* Friction fastness of dyeing fabric using hot water extraction dye

Cotton, silk, and nylon were pretreated with chitosan, tannin and rhizome, respectively, and dyeing was carried out with hot water extraction dyes. The rub fastness was measured according to KS K 0650. Table 7 shows the results of evaluating the fastness to rubbing of the test cloths by grading them in a gray scale for fading fading and a degree of contamination of white cotton cloths in a gray scale for contamination.

As a result of the evaluation, it was confirmed that the friction resistance of all the dyed materials was excellent.

Pretreatment effect of cotton fabric dyeing

When pretreatment was different for cotton fabrics, the following dyeing process was carried out to confirm the dyeing effect.

1. Dwarf, chitosan, tannin pretreatment

100% cotton fabric was refined, and then pretreated with 5% chitosan, chitosan, and tannin, respectively. The pretreatment was carried out by pre - treatment of equilibrium for 40 minutes while keeping 80 ℃ at 1:50 and 1% owf. The pretreatment of chitosan was performed by dissolving 1% chitosan (5g chitosan) in 1% acetic acid aqueous solution (495ml water, acetic acid 5ml) and dissolving it well. In the pretreatment of tannin, the sample was heated to 60 ° C for 15 minutes with 1:40, 5% (o.w.f.) Of liquor, and then the sample was immersed in the solution and cooled for 2 hours. After tannin treatment, the fixing agent (taurine, 2.5% owf) was dissolved and kept at 40 ° C for 20 minutes.

As a result of pretreatment, there was no color change of dwarf and chitosan, but tannin showed color change after treatment. Therefore, it was confirmed that pretreatment with dwarf chitosan or chitosan is preferable in case of pale dyeing.

2. Fermented juice pretreatment

The cotton fabric was pretreated with fermented juice. After being soaked for 40 minutes, it was color-treated to improve the fastness of daylight. And was heat-colored for 5 minutes in a drying oven at 160 ° C. As a result of the pretreatment, it was confirmed that the heat coloration after the juice treatment for improving the fastness of daylight was not suitable for pale dyeing because the color was dark.

Optimize dyeing process

The following dyeing process was carried out to check the degree of dyeing by varying dye concentration, temperature, pH, dyeing time, etc. for various pretreatments.

1. Dyeing by concentration

Dye concentration was changed to dye concentration (owf) of 10%, 30%, 50%, 100%, 200% and 500%. Dyeing conditions were 30 ℃ for the starting temperature, 45 times / 60s for the inverter, 20 minutes for the temperature rise, 80 minutes for the maintenance at 100 ℃, 20 minutes for the cooling and 20 ℃ for 30 minutes. . Fermented juice was used for the juice pretreatment and heat - treated at 160 ℃ for 5 minutes in a drying oven.

The dyeing results according to the concentration are shown in FIGS. 3A and 3B. 3B, the horizontal axis represents the concentration (owf), and the vertical axis represents the concentration (K / S). As a result of the dyeing test according to the concentration, it was found that the dyeing degree was darker and sharper as the dye concentration was higher, and it was confirmed that the concentration range of 50 to 500% was optimum.

2. Temperature-dependent dyeability

For dye concentration of 500%, dyeing was carried out by changing the dye temperature to 40 캜, 60 캜, 80 캜, 100 캜 and 120 캜 with the dye temperature as a factor. The dyed cotton fabric samples were pretreated with chitosan, tannin, juice, and dicot dyed with an IR stainer. Dyeing conditions were as follows: starting temperature 30 ℃, inverter 45 times / 60s, warming 20min, holding 80min, cooling 20min 30 ℃ And the results are shown in Figs. 4A and 4B. In FIG. 4B, the horizontal axis represents the temperature (占 폚) and the vertical axis represents the concentration (K / S). The higher the dye temperature, the darker the dyeing and the better the range of 40 ~ 120 ℃.

3. Dyeing time according to dyeing time

Dyeing was performed by changing the dye time to 20 minutes, 40 minutes, 60 minutes, 80 minutes, 100 minutes, and 120 minutes, respectively, with a dye concentration of 100% and a dyeing temperature of 120 ° C. The dyed cotton fabric samples were pretreated with chitosan, tannin, juice, and dicot dyed with an IR stainer. Dyeing conditions were as follows: starting temperature 30 ℃, inverter 45 times / 60s, warming 20min, holding 80min, cooling 20min 30 ℃ And the results are shown in Figs. 5A and 5B. In FIG. 5B, the horizontal axis represents the time (min, min) and the vertical axis represents the concentration (K / S). As the dye time increased, the degree of dyeing was evident and clear, and the optimum time was 40-100 minutes.

4. Dyeing by pH

The dyeing was carried out at a dye concentration of 100% and a dyeing temperature of 100 캜 by varying the pH of the dye to 3 to 11. The dyed cotton fabric samples were pretreated with chitosan, tannin, juice, and dicot dyed with an IR stainer. Dyeing conditions were as follows: starting temperature 30 ℃, inverter 45 times / 60s, warming 20min, holding 80min, cooling 20min 30 ℃ And the results are shown in Fig. The dyeing degree was changed according to the change of the pH value of the dye, and the optimum dyeing was performed in the range of pH 3 ~ 7.

Functional testing

1. Functional properties of chitosan pretreated yarn-dyed cotton fabrics

The pretreatment with chitosan according to the present invention was followed by testing the ultraviolet barrier property, deodorizing property and antimicrobial property of the cotton fabric dyed with yellowtail dye.

UV-VISIBLE-NIR Spectrophotometer was used to measure the UV-blocking test according to KS K 0850: 2009.

(UV-A), ultraviolet ray Transmittance between 290 and 315 nm: T (UV-B), ultraviolet ray 315 to 400 nm Transmission rate: UV-A , The UV-B cut-off rate between 290 and 315 nm was examined, and as shown in Table 8, the UV cutoff index was 50+ and the cut-off rate was very excellent.

UPF T (UV-A),% T (UV-B),% UV-A,% UV-B,% 50+ 1.7 1.5 98.3 98.5

The deodorization was carried out in accordance with JTETC (Japan Textile Testing and Technology Association Test Method) by introducing a 10 x 10 cm sample into a 5 L tetra bag, injecting 3 L of the gas adjusted to the initial concentration, measuring the deodorization with a detector tube for 2 hours . Ammonia 3La was used as a detection tube. The results of the deodorization performance evaluation are shown in Table 9, and it is confirmed that the reduction rate is excellent.

Ammonia concentration (ppm) Initial concentration After 2 hours Blank (blank test) 100.0 99.5 sample 100.0 0.0 Decrease (%) - 99.9

Antibacterial activity was tested using Staphylococcus aureus (ATCC 6538).

The growth value of the control value (effective when Mb / Ma = 31.6) and staphylococcus aureus were 51.8, TWEEN 80 (0.05%) and bacteriostatic reduction value (log Mb - log Mc) The bacteriostatic reduction rate: (Mb - Mc) × 100 / Mb was examined and is shown in Table 10. Here, Ma is the number of viable cells immediately after inoculation of the control flock, Mb is the number of viable cells after 18 hours of culture, and Mc is the number of viable cells after 18 hours of culture. FIGS. 7A and 7B are photographs of cultures of control and chitosan pretreated samples, respectively.

The number of viable cells after incubation of the sample for 18 hours was 20 or less, and it was confirmed that the antibacterial property was excellent because the bacteriostatic reduction rate was very high.

2. Functionality of tannin pretreated yarn-dyed cotton fabrics

The ultraviolet barrier property, deodorizing property, and antimicrobial property of the cotton fabric dyed with threonine dye after pretreatment with tannin were tested in the same manner as described above.

As shown in Table 11, the ultraviolet screening test showed that the ultraviolet screening index was 50+ and the screening rate was excellent.

UPF T (UV-A),% T (UV-B),% UV-A,% UV-B,% 50+ 1.8 1.5 98.2 98.5

The results of the deodorization performance evaluation are shown in Table 12 and it is confirmed that the reduction rate is very excellent.

Ammonia concentration (ppm) Initial concentration After 2 hours Blank (blank test) 100.0 99.5 sample 100.0 0.0 Decrease (%) - 99.9

As a result of testing the antimicrobial activity, the number of viable cells after incubation of the sample for 18 hours was 1.3 × 10 _3, and as shown in Table 13, it was confirmed that the antimicrobial activity was excellent because the rate of bacteriostasis was very high. Excellent results were obtained. FIGS. 8A and 8B are photographs of cultures of control and tannin-stained specimens after tannin pretreatment, respectively.

3. Functional properties of cotton fabrics pretreated with jujube

UV-blocking, deodorizing and antimicrobial properties of cotton fabrics dyed with threonine after pretreatment with juice were tested in the same manner as described above.

As shown in Table 14, the ultraviolet screening test showed that the ultraviolet screening index was 50+ and the screening rate was very good.

UPF T (UV-A),% T (UV-B),% UV-A,% UV-B,% 50+ 0.9 0.8 99.1 99.2

The results of the deodorization performance evaluation are shown in Table 15 and it is confirmed that the reduction rate is very excellent.

Ammonia concentration (ppm) Initial concentration After 2 hours Blank (blank test) 100.0 99.5 sample 100.0 0.0 Decrease (%) - 99.9

As a result of the test for antibacterial activity, the number of viable cells after incubation of the sample for 18 hours was less than 20, and as shown in Table 16, Excellent results were obtained. FIGS. 9A and 9B are photographs of cultured specimens stained with the control group and jujube pretreatment, respectively.

4. Functionalities of pretreated cotton fabrics

UV light fastness, deodorization and antimicrobial activity of cotton fabrics dyed with threonine dyes after pretreatment with rhizome were tested in the same manner as described above.

As shown in Table 17, the ultraviolet screening test showed that the ultraviolet screening index was 50+ and the screening rate was very good.

UPF T (UV-A),% T (UV-B),% UV-A,% UV-B,% 50+ 2.0 1.8 98.0 98.2

The results of the deodorization performance evaluation are shown in Table 18 and it is confirmed that the reduction rate is excellent.

Ammonia concentration (ppm) Initial concentration After 2 hours Blank (blank test) 100.0 99.5 sample 100.0 0.0 Decrease (%) - 99.9

As a result of the test for antibacterial activity, the number of viable cells after culturing the sample for 18 hours was less than 20, and as shown in Table 19, it was confirmed that the antibacterial activity was excellent because the rate of bacteriostasis was very high. Excellent results were obtained. FIGS. 10A and 10B are photographs of cultures of the control group and the specimens stained with thrips after pretreatment.

Thus, it is expected that the sample which is pretreated with chitosan, tannin, juice, and spermatozoa is excellent in ultraviolet light shielding property and excellent in deodorization and antimicrobial properties, so that it can be effectively applied to bedding, clothes and various functional fabrics.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modified, modified, or improved.

Claims (12)

The dyes are extracted from the gypsum by hot water extraction or solvent leaching,
The dyestuffs are pretreated with daphnia, chitosan, tannin, or bran,
Dyeing the dyed material with a dye extracted from the gypsum to a pre-treated dyed material
Natural dyeing method.
The method according to claim 1,
Further comprising the step of concentrating and drying the dye extracted from the silkworm to powder.
The method according to claim 1,
Wherein the pretreating step is performed by immersing the dyes in a solution having a concentration of 0.1% to 5% owf in a solution ratio of 1:10 to 1: 100 and pretreating the dyes.
The method according to claim 1,
Wherein the pretreatment with chitosan is carried out by immersing the dyes in a solution of 0.1 wt% to 5 wt% of chitosan dissolved in an aqueous acetic acid solution.
The method according to claim 1,
Wherein the pretreatment with tannin is carried out by immersing the dyes in a solution having a tannin concentration of 0.1 to 10% owf in a liquid ratio of 1:10 to 1: 100 and pre-treating the dyestuff.
The method according to claim 1,
Characterized in that it is pretreated with fermented juice when it is pretreated with juice and heat-colored in sunlight or in a drying oven.
The method according to claim 1,
Characterized in that the yellow dye is extracted by a hot water extraction method when the dyed material is a cotton fabric.
The method according to claim 1,
Wherein the dye concentration (owf) is 50% to 500% when dyed with a yellow dye.
The method according to claim 1,
Characterized in that the temperature of the dye when dyed with threo dye is from 40 ° C to 120 ° C.
The method according to claim 1,
Wherein the dyeing time is 40 to 100 minutes when dyeing with yellow dye.
The method according to claim 1,
Wherein the dye has a pH of 3 to 7 when dyed with a yellow dye.
12. Process according to any one of the claims 1 to 11,
Pre-treatment and silk dyeing.

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