KR20200059864A - Natural black dyeing method with persimmon juice and fabric dyed thereby - Google Patents

Abstract

The present invention relates to a natural black dyeing method using persimmon juice, and natural black-dyed fabric dyed by the method. According to the present invention, the natural black dyeing method comprises: a first dyeing process (S10) of immersing fabric in persimmon juice to dye the fabric with base color; a development process (S20) of exposing the printed fabric to artificial light for 24 hour to develop dyestuff; a mixed dyeing process (S30) of using a plurality of mixed natural dyestuffs belonging to red, yellow, and green series to dye the base-dyed fabric; a first treatment process (S40) of using an iron mordant agent with a concentration of 3% on the weight of fiber (o.w.f) with respect to the mixed dyestuff-dyed fabric to fix the color of the fabric; and a third treatment process of putting the color-fixed fabric into a steamer to fix the dyestuff. According to the present invention, the method provides high quality natural black-dyed fabric having a deep and strong tone while increasing productivity more than an existing method.

Description

Natural black dyeing method using persimmon and natural black dyeing fabric dyed by it {NATURAL BLACK DYEING METHOD WITH PERSIMMON JUICE AND FABRIC DYED THEREBY}

The present invention relates to a natural black dyeing method using persimmons and a natural black dyeing fabric dyed therein, more specifically, a deep color tone using tannins and natural mixed dyes, which are astringent ingredients contained in persimmon. It is related to a dyeing method that improves productivity and derives a high-quality natural black dyeing fabric by configuring it to be dyed in black color.

In general, natural dyeing is to dye fabric using dyes made from dyes obtained from nature, such as animals, plants, or minerals. Due to the development of chemical dyeing technology using synthetic dyes, the frequency of use of natural dyeing technology has decreased, but recently, preferences have increased again along with eco-friendly and naturalist trends.

Natural dyes differ in the color expressed depending on the type and chemical properties of the dyestuff and the combination with the mordant. In traditional natural dyeing, five colors of white, blue, yellow, red, and black are typical colors, and five colors are combined to express an intermediate color.

For example, blue-based natural dyes include indigo, gyejangcho, cheongdae, grapes, and self-growth, and yellow-based gardenia, yellow-white, hwahwa, hwangnyeon, turmeric and turmeric. The red line includes safflowers, puppets, and small trees, and the black line includes charcoal with bamboo leaves, willow branches, and rhododendron branches, and ink, black soil, alder trees, chestnut trees, and new trees. Other brown lines include persimmon, cloves, mulberry, jujube, elm, etc., and black-violet lines include pear, purple, mulberry, and grape.

Since natural dyeing is performed by most of the processes by hand, productivity is low, and it is difficult to derive dyeability and color fastness, and thus there is a disadvantage in that the color expression of the target is remarkably low. In particular, black can be formed by combining red, yellow, and blue chemical dyes in the same proportion in synthetic dyes, but in the case of natural dyes, it is difficult to combine the color concentration and color for each type of dye on a constant basis. Deep Black) is difficult to dye the fabric.

On the other hand, as an example of dyeing-related technology using black-based natural dye, Korean Patent Registration No. 10-0496498 includes immersing bamboo charcoal in water, crushing bamboo charcoal and immersed solution together, and pulverizing treatment. The step of heating the solution in which the bamboo charcoal is immersed, and the process of immersing and drying the dye object in the dye solution produced through the heating step is repeatedly repeated a predetermined number of times, and the dyeing object is mordged using a mordant It comprises a dyeing method using bamboo charcoal comprising the step of processing.

As another example, in Korean Patent Registration No. 10-0725377, liquid citrus foil is treated in a freezer at -20 ° C for 24 hours and in a vacuum freeze dryer for 72 hours to completely remove moisture and then crushed to form a dried citrus fruit foil, and dried citrus fruits. Carbonation and pulverization of the foil at a temperature of 300 to 750 ° C. for 1.5 hours to prepare a natural citrus charcoal dye, mixing the citrus charcoal natural dye with water to prepare a salt solution, and adding the fibers together in a dyeing tank of a dyeing machine and stirring at 80 ° C. After dyeing, a method of dyeing fibers using citrus and charcoal natural dyes comprising washing and drying.

Korean Registered Patent No. 10-0496498 (2005.07.01) Korean Registered Patent No. 10-0725377 (2007.06.07) Korean Patent Publication No. 10-2003-0083027 (2003.10.30) Korean Registered Patent No. 10-0405653 (2003.11.14)

The dyeing method using bamboo charcoal to which the above-described prior art is applied is configured to dye by dyeing a dyeing object in a bamboo charcoal solution repeatedly and coloring it repeatedly several times, followed by a dyeing process.

However, since the prior art uses a solution of bamboo charcoal impregnated with water as a dye, it is difficult to derive a dark black color, and even when the dye is stained, it is actually a light gray dyeing result due to low color expression and fastness. It is limited to the level of deriving. As a result, since the dyeing process has to be repeated several times in order to dye it close to the desired black color, it takes a lot of time and labor and there is a problem of deteriorating productivity.

As another example, in the prior art, the method of dyeing fibers using a citrus charcoal natural dye or a salt solution prepared by mixing with drinking water also has a situation in which the depth of black color does not significantly affect the dyeing by synthetic dyes.

In addition, since it is known that heavy metal substances harmful to the human body are released during the manufacture and use of ink or charcoal, care must be taken to use large amounts of natural dye products.

Therefore, in the present invention, the present invention was solved to solve the problems of the prior art as described above.

Base dyeing process to dye the base color by immersing the fabric in persimmon (S10);

A coloring process (S20) of coloring the dye by exposing the printed fabric to artificial light for 24 hours;

A mixed dyeing process of dyeing the base dyed fabric using a plurality of natural mixed dyes belonging to the red, yellow, and blue series (S30);

A first treatment step (S40) of treating the dyeing of the mixed dyed fabric with an iron mordant having a concentration of 3% (o.w.f.) compared to the fabric weight; And

And a third treatment step (S60) in which the dyed fabric is introduced into a heat-steaming machine and heat-treated at 100 ° C. for 1 hour to fix the dye.

In addition, in the mixed dyeing step (S30),

It is configured to immerse the fabric for 40 minutes at room temperature using natural mixed dyes mixed with five natural dyes extracted from each of the dyestuffs of Ojaja, logwood, acorn, alder, and walnut in the same weight ratio to dye them once.

In addition, between the first processing step (S40) and the third processing step (S60),

By including the second treatment step (S50) of washing the fabric twice using a clove extract having a concentration of 1% (owf) compared to the weight of the fabric, the dyeing is repeated several times compared to the conventional black dyeing technique using charcoal or ink. It is possible to achieve the purpose of improving productivity and providing high-quality natural black dyeing fabric by dyeing it with a high-quality natural black color having a deep and dark color even if not performed.

The present invention provides a dyeing method for expressing deep natural black using persimmon and natural mixed dye.

Particularly, the present invention improves the point that it is necessary to perform repetitive dyeing of about 4 to 5 or more times when dyeing natural black according to the prior art, and only dye it once using natural mixed dye on the persimmon base-dyed fabric. It also has the advantage of dying in natural black with a deep black feel with high fastness.

Therefore, compared to the conventional black dyeing technique using charcoal or food, the dyeing process is greatly simplified to improve productivity and to produce an effect that enables commercialization using high-quality natural black fabric that is harmless to the human body.

1 is a process flow diagram of a natural black dyeing method using persimmon according to the present invention.
2 to 7 are exemplary images showing the process of dyeing six types of fabric according to an embodiment of a natural black dyeing method using persimmons according to the present invention.

Hereinafter, a description will be given in detail with reference to the accompanying drawings, the structure and operation according to a preferred embodiment of the natural black dyeing method using the persimmon of the present invention and the natural black dyed fabric dyed by the following. In the following description, detailed descriptions of parts that can be easily implemented by those skilled in the art may be omitted.

1 is a process flow diagram of a natural black dyeing method using persimmons according to the present invention, and FIGS. 2 to 7 show the process of dyeing 6 types of fabrics according to an embodiment of a natural black dyeing method using persimmons according to the present invention This is an example image.

The natural black dyeing method using the persimmon to which the technology of the present invention is applied and the dyed natural black fabric are dyed in a natural black color that expresses a significantly deeper color than the prior art using tannin and natural mixed dye contained in the persimmon It is noted that it is related to a technique to improve productivity and to derive a high-quality natural black dyeing fabric.

The natural black dyeing method using the persimmon of the present invention for this purpose is largely as shown in Figure 1 base dyeing process (S10), coloring process (S20), mixed dyeing process (S30), and the first treatment process to It comprises three treatment steps (S40 ~ S60) and is specifically as follows.

The base dyeing process (S10) is a process of dyeing the base color by immersing the fabric in persimmon.

Persimmon contains a large amount of lycopene, a yellow carotenoid pigment, so in natural dyeing, persimmon is a typical dye used for yellow-based dyeing. In particular, the condensed tannin, which is an ingredient that gives the astringent taste of persimmon, works in combination with natural dyes to improve the dyeing and fastness. Persimmon can be used by controlling the concentration by adding water to the juice after crushing the collected persimmon or by fermenting and aging for a certain period.

The persimmon prepared as described above is infiltrated into the fabric to dye the base color of a tan color tone.

The coloring process (S20) is a process of coloring the dye by exposing the dyed fabric to artificial light for 24 hours.

In the base dyeing process (S10), the condensed tannin contained in the persimmon used for the dyeing of the base color undergoes oxidation when exposed to air or light, causing browning, so the color is deeper and darker.

The mixed dyeing process (S30) is a process of dyeing a base dyed fabric using a plurality of natural mixed dyes belonging to the red, yellow, and blue series.

Specifically, the natural mixed dye is made by mixing five kinds of natural salt solution extracted from each of the dyestuffs of pear, logwood, acorn, alder, and walnut in the same weight ratio.

Ojaja is a worm nest formed on the leaves of the sycamore family, redwood, and contains tannin as its main ingredient. The pentagonal dye is obtained by extracting the pentagonal hot water at 80 ~ 90 ℃, filtering it, adjusting the pH to neutral to induce dyeability, and then concentrating to obtain a liquid. The pentagonal dye expresses different colors according to the mordant treatment method, for example, light brown color when not buried, black purple when buried by aluminum, brown brown when buried, and dark red when iron buried as in the present invention.

The logwood is a plant belonging to the rosacea, and contains a hematoxylin dye in the heart material that has a purplish brown color. The logwood dye is obtained by extracting hot water from water at 60 ~ 70 ℃ and filtering it. The logwood dye also expresses different colors depending on the type of mordant, for example, purple when treated with aluminum, blue-grey when treated with copper, and blue-purple with gray when iron-doped as in the present invention.

The acorn is the fruit of the acorn, the fruit of the oak. Acorns contain about 80% starch and 10% tannins, especially in the skin. The acorn dye is obtained by extracting hot water at 80 ~ 90 ℃, filtering it, adjusting the pH to neutral to induce dyeability, and then concentrating it to obtain a liquid. The acorn dye expresses aluminum, yellowish brown when copper buried, and strong yellowish brown when iron buried as in the present invention.

Alderm is a deciduous tree belonging to the birch family and contains tannins in bark and fruit. Alder dye is obtained by extracting hot water called alder at 80 ~ 90 ℃, filtering it, and adjusting the pH to neutral so as to elicit dyeability, thereby obtaining a liquid. Alderm dye expresses chestnut brown when treated with aluminum, and gray or blackish brown when treated with the iron mordant as in the present invention.

Walnut skin is the inner skin of the walnut, the fruit of the walnut tree. Walnut has an inner skin that surrounds the nucleus and hard bone-like surgical skin, and especially contains a large amount of tannin in the inner skin. The walnut skin dye is obtained by extracting hot water from walnut skin at 80 ~ 90 ℃, filtering it, adjusting the pH to neutral to induce dyeability, and then concentrating to obtain a liquid. The walnut skin dye expresses a light yellow-brown color during iron burrs as in the present invention.

In the mixed dyeing process (S30), each natural dye solution as described above is mixed with the same weight ratio, and is immersed in the fabric for 40 minutes at room temperature using a natural mixed dye to be dyed once.

The first treatment step (S40) is a process of mortar-dyeing fabric with a dyeing agent having a concentration of 3% (o.w.f.) compared to the weight of the fabric.

Since the natural mixed dye as described above has a weak dyeing power when dyed on a fabric made of natural fibers, the process of mordant treatment must be carried out. The persimmon used in the base dyeing process (S10) is fabric based on the substrate properties of condensed tannin. It functions to enhance the binding force between the and natural mixed dye, and in addition, in the first treatment step (S40), treatment with an iron mordant among the metallic mordants leads to the development of a darker shade of black from the dye solution color.

The iron mordant used in the first treatment step (S40) is selected from among common iron mordant agents such as ferrous sulfate, ferric chloride, and ferric acid.

On the other hand, between the first treatment step (S40) and the third treatment step (S60), which will be described later, a second treatment step of washing twice with a clove extract having a concentration of 1% (owf) compared to the weight of the fabric on the buried fabric. (S50).

The second processing step (S50) is a process to provide the antibacterial and deodorizing functionality to the buried fabric. Clove is a bud of a clove tree that has a dark brown or dark red color and emits a unique strong scent. Clove extract is mixed with cloves and water to extract hot water at 90 ~ 100 ℃, or extracted with a solvent mixed with ethanol or methanol and filtered to obtain a liquid. Clove extract contains a large amount of polyphenols, which has antibacterial and antiviral activity.

The third treatment step (S60) is a process in which a dyed fabric is put into a steam heater and the dye is fixed by heat treatment at 100 ° C. for 1 hour.

It is preferable that the heat treatment time does not exceed 1 hour or more, and this is to increase the fixation rate by condensing the dye and cloves extract on the fabric without damaging the fabric using saturated steam or superheated steam.

The natural black dyeing fabric dyed by the natural black dyeing method using the persimmon applied with the technology of the present invention having the configuration as described above has a Munsell colorimeter brightness value of 0 to 3.0, measured by the KS K ISO 105-B02 method Sunlight fastness level 4 or higher, laundry fastness measured by KS K ISO 105-C06 method, sweat fastness measured by KS K ISO 105-E04 method, 4-5 grade, friction fastness measured by KS K ISO 0650 method Is 1 to 3 grades, it has a property of 99.8% antibacterial properties measured by the KS K 0693 method. Therefore, it is possible to provide a safe and beneficial product to the human body through the cooling and antibacterial and deodorizing functions given the characteristics of natural dyes while stably developing high-quality natural black color when manufacturing black jackets, shirts, etc. using the fabric. have.

Hereinafter, an embodiment including the present invention having the above-described configuration will be constructed, and the effects thereof will be closely grasped. Since the following description is to describe the preferred embodiment for the present invention, the present invention is not limited by the following examples, it will be understood that various modifications can be provided within the scope of the scope of the present invention. .

<Example>

Using the natural black dyeing method using the persimmon according to the present invention, six kinds of natural fabric samples are dyed, including linen, cotton 7 water, ramie, twill runner, silk jacquard, and human jacquard.

After the persimmon is squeezed, the persimmon is prepared by mixing with the same amount of water, and the six kinds of sample fabrics are invaded and dried to dye the base color of a tan color.

When the persimmon is soaked into the fabric and stabilized, the fabric is exposed in a room where artificial light is irradiated for 24 hours to color the base in a tan tone.

Five natural salt solutions obtained by extracting hot water or hot water by extracting each salt material of pear, logwood, acorn, alder, and walnut in the same manner as described above are mixed in a weight ratio of 1: 1: 1: 1: 1. Prepare a natural mixed dye and dye it once by immersing 6 types of fabric dyed at room temperature for 40 minutes.

Six types of mixed dyed fabrics are mordged with an iron mordant at a concentration of 3% (o.w.f.) compared to fabric weight to induce color development in black. In addition, the six kinds of fabrics that are buried are washed twice with a clove extract having a concentration of 1% (o.w.f.) compared to the weight of the fabric. In addition, 6 types of fabrics that were buried were put into a steam heater and subjected to heat treatment at 100 ° C. for 1 hour to fix the dye.

Fig. 2 is linen, Fig. 3 is cotton 7, Fig. 4 is ramie, Fig. 5 is twill runner, Fig. 6 is silk jacquard, and Fig. 7 is pre-dyeing state (a), base dyeing process or coloring process of each of the silk fabrics. It shows the state (b) that has passed through (S10 to S20) and the state (c) that has passed through the mixed dyeing process to the third treatment process (S30 to S60).

<Test Example 1>

According to an embodiment of the present invention, the brightness values according to the Munsell colorimeter of six kinds of natural black dyed fabrics dyed were measured and the results are shown in Table 1 below. As a measure of the brightness value according to the Munsell colorimeter, the brightness of achromatic colors from white to black is divided into 11 levels, and white is set to 10 and black is set to 0.

Natural black dyeing fabric Munsell colorimeter (brightness value) Linen 1.9 Unknown 7 number 2.2 Ramie 2.3 Twill Runner (Hemp) 1.9 Silk jacquard 2.2 Dog card 2.3

The six natural black dyeing fabrics dyed according to the embodiment of the present invention shorten the process by performing the mixed dyeing process (S30) once by excluding the repeated dyeing process several times as in conventional natural dyeing technology, and thus Despite the fact that the fabric thickness is thin, as shown in Table 1, the result of expressing in the Deep Black color whose Munsell colorimeter brightness value falls within the range of 0 to 3.0.

<Test Example 2>

For six natural black dyed fabrics dyed according to an embodiment of the present invention, antibacterial properties according to the KS K 0693 method, deodorizing properties tested through an authorized institution, sunlight fastness according to the KS K ISO 105-B02 method, KS K Washing fastness according to ISO 105-C06 method, sweat fastness according to KS K ISO 105-E04 method, friction fastness according to KS K ISO 0650 method, and appearance method according to KS K 0552 method compared to conventional general dyed samples The spindle degree used was measured and the results are shown in Table 2 below.

Fabric
Kinds
Antibacterial
(%) Deodorant
(%)
Color fastness (class) Spindle
(class) sweat friction Laundry daylight
acid Alkaline dry Wetting Fading pollution Linen 99.9 99.8 4 ~ 5 4 ~ 5 2-3 1-2 4 ~ 5 4 ~ 5 4 or more 4.5 Unknown 7 number 99.9 99.8 4 ~ 5 4 ~ 5 1-2 1-2 4 ~ 5 4 ~ 5 4 or more 4.0 Ramie 99.9 99.8 4 4 2 1-2 4 ~ 5 4 ~ 5 4 3.4 Twill Runner (Hemp) 99.9 99.8 4 ~ 5 4 ~ 5 1-2 1-2 4 ~ 5 4 ~ 5 4 2.1 Silk jacquard 99.9 99.8 4 ~ 5 4 ~ 5 1-2 1-2 4 ~ 5 4 ~ 5 4 or more 3.1 Dog card 99.9 99.8 4 ~ 5 4 ~ 5 2 1-2 4 ~ 5 4 ~ 5 4 or more 3.2

As can be seen through the results shown in Table 2, the six natural black dyeing fabrics dyed according to the embodiment of the present invention showed both antibacterial and deodorizing properties at the highest level.

In addition, in consideration of the fastness test result, considering that the normal natural dyeing fabric is in the level of 2-3 in the fastness item, the present invention has shown a very good level of average level 3 or higher, and also the spindle has very good wrinkles. It was confirmed that the material linen showed a very high level.

The natural black dyeing method using the persimmon according to the present invention as described above and the dyed natural black fabric using the tannin component contained in the persimmon and the natural mixed dye are difficult to express through natural dyeing. It provides a dyeing method to express high-quality natural black.

Particularly, the present invention improves the point that repeated dyeing several times for color development during normal natural dyeing is improved, and only dyeing once using natural mixed dye on the base dyed fabric by persimmon is high. It has the advantage of allowing the natural black color of the fastness to develop, and imparting functions such as antibacterial and deodorizing properties and spindle properties through the first to third treatment processes (S40 to S60).

Therefore, the present invention is expected to have a great potential for industrial use since it greatly simplifies the dyeing process compared to the prior art, thereby improving productivity and enabling commercialization using high-quality natural black dyeing fabrics that are safe for the human body. do.

S10: Base dyeing process
S20: color development process
S30: mixed dyeing process
S40: First treatment process
S50: Second treatment process
S60: Third treatment process

Claims (4)

Base dyeing process to dye the base color by immersing the fabric in persimmon (S10);
A coloring process (S20) of coloring the dye by exposing the printed fabric to artificial light for 24 hours;
A mixed dyeing process of dyeing the base dyed fabric using a plurality of natural mixed dyes belonging to the red, yellow, and blue series (S30);
A first treatment step (S40) of mortar-dyed fabric using mordant agent having a concentration of 3% (owf) compared to fabric weight; And
A method of dyeing natural black using persimmon comprising a; a third treatment step (S60) in which the dyed fabric is added to a steam heater and heat-treated at 100 ° C. for 1 hour to fix the dye. According to claim 1,
In the mixed dyeing process (S30),
It is characterized in that it is configured to immerse the fabric for 40 minutes at room temperature using natural mixed dyes mixed with five natural dyes extracted from each of the dyestuffs of Ojaja, logwood, acorn, alder, and walnut in the same weight ratio to dye them once. Natural black dyeing method using persimmon. According to claim 1,
Between the first processing step (S40) and the third processing step (S60),
Natural black dyeing method using persimmon, characterized in that it comprises; a second treatment step (S50); two times using a clove extract having a concentration of 1% (owf) compared to the weight of the fabric on the buried fabric. In the natural black dyeing fabric dyed by the natural black dyeing method using the persimmon according to any one of claims 1 to 3,
The natural black dyeing fabric has a Munsell colorimeter brightness value of 0 to 3.0, a light fastness of 4 or more measured by the KS K ISO 105-B02 method, and a wash fastness and KS K ISO measured by the KS K ISO 105-C06 method. Permeability characterized in that the fastness to sweat measured by the 105-E04 method is 4 to 5 grades, the frictional fastness measured by the KS K ISO 0650 method is 1 to 3 grades, and the antibacterial property measured by the KS K 0693 method is 99.8% Natural black dyeing fabric.

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