KR101710419B1

KR101710419B1 - Natural dyeing method of woven pile fabric using natural indigo

Info

Publication number: KR101710419B1
Application number: KR1020150059028A
Authority: KR
Inventors: 권오운; 서화진; 김현정; 이효정; 이혜인; 안미란; 양현아; 전은경; 김선림
Original assignee: 주식회사 영도벨벳; (재) 경북천연염색산업연구원; 주식회사 예진; 김선림; 전은경
Priority date: 2015-04-27
Filing date: 2015-04-27
Publication date: 2017-03-09
Also published as: KR20160127886A

Abstract

The present invention relates to a method for dyeing pile fabrics using natural dyes, comprising: a step (S100) of obtaining a powdery salt material by washing the collected side leaves with water and pulverizing the dried pale leaves to a predetermined particle size using a pulverizer; A solution prepared by mixing distilled water or distilled water and ethanol at a weight ratio of 9: 1 to 7: 3 at a weight ratio of 1: 40 with respect to the weight of the fabric was added to the powdery dough having a concentration of 10 to 50% (owf) Stirring the mixture at a speed of 70 rpm using a stirrer, and then adjusting the pH to 12 to form a salt solution (S200); And a dyeing step (S300) of dipping the pile fabric subjected to the refining treatment in the saline solution and dyeing the same at a temperature of 40 ° C for 10 minutes. Accordingly, it is possible to obtain a natural side It is advantageous to provide dyeing method of pile fabrics using dyes to provide high quality dyestuffs having excellent dyeability and color reproducibility.

Description

METHOD OF WOVEN PILE FABRIC USING NATURAL INDIGO < RTI ID = 0.0 > [0001] < / RTI &

The present invention relates to a method for dyeing pile fabrics using natural dyes, and more particularly, to a method for dyeing pile fabrics using natural dyes, and more particularly, to a dyeing method for dyeing pile fabrics using a natural dye, The present invention relates to a method for dyeing pile fabrics using natural dyes, which imparts functionality such as deodorization and antibacterial properties to fibers and has an excellent fastness.

Generally, it is a perennial plant belonging to the family Pyralidae and has been cultivated for the purpose of using as a salt. In particular, the leaf of the side contains indigo pigment and is used as a representative natural dye having a color of navy blue color.

Dyeing using natural dyes is a very difficult method of obtaining color reproducibility because dyeability and dyestuff dyes are largely differentiated according to the manufacturing method of dyes and the period of preparation of dyes. However, there are still few studies to overcome this problem of natural dyeing. In particular, there is almost no research on the natural dyeing method using pile fabric as a dyed material.

On the other hand, the dyeing method using the conventional dyeing method is different from the natural dyeing method using the conventional dyeing method for the reason as described above. The dyeing method using the conventional dyeing method can be roughly classified into the green leaf dyeing method, the green leaf dyeing method and the fermentation dyeing method.

The green leaf staining method is a method in which raw leaves of the side are collected, ground, mixed with water and filtered to dyes the fabric.

The green leaf fermentation method is a method of dyeing a fabric by adding potassium carbonate as a main ingredient to the gut and hydrolyzing it.

The staining method by the fermentation side is a method of dyeing the fabric using the solution extracted by adding the lime to the jelly, filling the jelly with water and filling the jelly.

Indigo, which exists as indican in plants, is naturally hydrolyzed by water extraction and converted to indoxyl. The phosphorus silicate is a yellowish crystal of crystals which is readily oxidized by air in an alkaline solution, resulting in the production of indigo pigments. The reason why lime is added in the staining method based on the fermentation side is that lime as a main component of calcium hydroxide has a strong alkaline property and thus an indigo pigment can be produced by an oxidation reaction.

In addition, since indigo is insoluble in water, it is required to have fermentation by microorganism or reduction of alkali solution as a reducing agent in order to be used for dyeing, so that dyeing is performed by complicated dyeing process compared with general natural dyeing method .

A typical example of the dyeing method using the natural dye will be described in detail with reference to the structure disclosed in the registered patent No. 10-1030954.

A washing step S110 of washing the collected side, a washing step S120 of mixing the washing water with one weight of water per 2 weight of the washed side for a predetermined time to extract the washing solution from the washing solution, A mixing step S140 of mixing 1 weight of lime per 5 weight of parasol; and a step of removing water after allowing the parchment to permeate the lime for a predetermined time to obtain a salt solution for the salt solution (S100) for preparing a dye for a dye for producing a dye for a dye through a dye side powder obtaining step (S150)

Preparing a dye solution (S210) for preparing a mixture by mixing 100 weight of water per 1 to 2 weight of the salt solution for the salt solution; adding soda ash or caustic soda to the dye solution to adjust the pH concentration to 11 to 12 (S200) for preparing a dye for dyeing through a heating step (S230) for heating the dye solution at a temperature of 60 ° C for 10 to 20 minutes,

(S310) for preparing a dye for dyeing by adding hydrosulfite, which is a reducing agent, to the dye, a temperature control step (S320) for maintaining the dye at 28 to 32 ° C, and a step of adjusting the dye from blue to yellow or lime green (S330) of immersing the cloth in water for 5 to 10 hours so as to prevent the cloth from being exposed to water, an oxidation step (S340) of oxidizing the raw fabric, and a stabilization step S350 And a drying step (S360) of drying the stabilized dyeing fabric.

Registration No. 10 - 1030954 - 0000 Registration No. 10 - 1322804 - 0000

The natural dyeing method using the above-mentioned conventional techniques is similar to the dyeing method by a conventional fermentation method in which a dye is prepared through an oxidation reaction using a lime powder and the insoluble dye is reduced to a water soluble state using a reducing agent I am taking.

However, the method of natural dyeing of fibers using the conventional technique has the following problems.

First, mixing and oxidizing the lime to extract the pigment from the indigo, and adding an alkaline reducing agent consisting of caustic soda and hydrosulfite to the side powder to reduce the insoluble indigo pigment to water soluble, And thus the workability and productivity are deteriorated.

In particular, the above-mentioned hydrosulfite is the reducing agent most widely used as a reducing agent of the dye, and although the reducing effect is excellent, a toxic gas harmful to the human body is generated in the dyeing process and a considerable amount remains in the water discharged after use, There is a serious problem causing it.

In order to solve the above-mentioned problems, studies have been made to apply glucose, an organic reducing agent, in place of hydrous sulfite in the related art, but the level thereof is still small.

In addition, the dyed dyestuff dyed with the alkaline reducing agent as described above has a disadvantage in that discoloration and discoloration are easily occurred and the color reproducibility is lowered due to low fastness and poor durability. However, a solution is proposed It is a fact that I can not.

Accordingly, the present invention has been made to solve the above-mentioned problems,
A step S100 of obtaining a powdery salt material by washing the collected side leaves with water and then drying and pulverizing the powder to a predetermined particle size using a pulverizer;
A solution prepared by mixing distilled water or distilled water and ethanol at a weight ratio of 9: 1 to 7: 3 at a weight ratio of 1: 40 with respect to the weight of the fabric was added to the powdery dough having a concentration of 10 to 50% (owf) Stirring the mixture at a speed of 70 rpm using a stirrer, and then adjusting the pH to 12 to form a salt solution (S200);
And dyeing step (S300) in which the pile fabric subjected to refining treatment in the saline solution is dipped and dyed at a temperature of 40 ° C for 10 minutes, thereby providing a dyeing method of pile fabrics using an optimal natural dye without requiring a complicated process So that it is possible to achieve an objective of providing a high-quality detritus having excellent dyeability and color reproducibility.

delete

The present invention proposes optimal dyeing conditions for natural dyeing using a side dye, and is applied to natural dyeing of pile fabrics, thereby providing excellent durability and color reproducibility as well as imparting functionalities such as deodorizing and antibacterial properties to the dyed dyes, .

Therefore, compared to the prior art in which a complicated process has to be carried out in various stages in order to reduce the insoluble dye to water-soluble, the process is greatly shortened and the use of harmful reducing agent is suppressed to prevent the pollution, Can be expected to be improved.

In particular, the dyeing technique using a natural dye, which has difficulty in obtaining dyeability and color reproducibility, has provided a dyeing method capable of obtaining an optimum dyeing result for a pile fabric as a dyed material in the circumstances where there has been almost no research in related fields until now Thereby making it possible to perform dyeing more easily.

Figs. 1 to 5 show the results of tests on the deodorization rate, washing fastness, perspiration fastness, fastness to light, and antimicrobiality of dyed pile fabrics according to the embodiment of the method of dyeing pile fabrics using natural dyes of the present invention One test report card.
FIGS. 6 to 10 are test reports showing the deodorization rate, washing fastness, perspiration fastness, fastness to rubbing, light fastness, and antimicrobiality of dyed pile fabrics using Daechung dyes as a comparison group.

Hereinafter, a method for dyeing pile fabrics using natural dyes according to the present invention will be described in more detail.

Figs. 1 to 5 show the results of tests on the deodorization rate, washing fastness, perspiration fastness, fastness to light, and antimicrobiality of dyed pile fabrics according to the embodiment of the method of dyeing pile fabrics using natural dyes of the present invention 6 to 10 show a test report card for testing the deodorization rate, washing fastness, perspiration fastness, fastness to rubbing, light fastness, and antimicrobiality of dyed pile fabrics using Daechung dyes as a comparative group Explain.

A method for dyeing pile fabrics using natural dyes to which the present invention is applied is characterized in that a step S100 of obtaining a powdery dyestuff to obtain a powdery dyed material by washing the collected side leaves with water and drying and pulverizing the dyed leaf to a predetermined particle size using a pulverizer, (S200) of adding a solution prepared by mixing distilled water or distilled water and ethanol to the powdered silver salt and stirring the mixture to adjust the pH to 12 to form a salt solution, and dyeing the pile fabrics refined in the saline solution S300).

In the step of forming the saline solution (S200), a salt solution is formed by mixing the powdery salt with water in an optimal condition for enhancing the dyeability of the insoluble dye. In the present invention, distilled water is added to the powdery dyestuff having a concentration of 10 to 50% (owf) based on the weight of the pile fabric to be dyed at a ratio of 1:40 relative to the weight of the fabric, The mixture was stirred at a speed of 70 rpm and then adjusted to pH 12 to form a salt solution, thereby performing a salt solution formation step (S200).

The distilled water can be used by adding a solution prepared by mixing distilled water and ethanol at a weight ratio of 9: 1 to 7: 3. Generally, the side dye has a poor solubility in water under neutral or acidic conditions, but the solubility of the dye in neutral condition can be increased by adding ethanol.

On the other hand, in the dyeing step (S200), the pH of the salt solution is adjusted to 12 to form a salt solution, because the alkaline salt solution has excellent dyeability to the salt solution during dyeing. The pH of the saline solution greatly affects the antimicrobial activity of the salt, and the content thereof will be described in more detail with reference to the following examples.

The dyeing step (S300) is a step of dipping the pile fabric in a saline solution. The dyeing temperature and time vary greatly depending on the kind of the pesticide. In the present invention, which is a pile fabric as a subject, the dyeing is performed at a temperature of 40 ° C for 10 minutes.

Hereinafter, an embodiment including the present invention having the above-described configuration will be constructed, and the effect of the embodiment will be grasped thoroughly.

&Lt; Example 1 >

Dyeing according to the dyeing method of pile fabrics using natural dyes of the present invention.

The powdery salt acquisition step (S100), the salt solution formation step (S200), and the dyeing step (S300) are performed by using the velvet that has undergone refining treatment as a dyed material. Dyeing was carried out using an IR stainer with less mildew than manual dyeing, and the dyed material was washed and dried after dyeing step (S300).

The specific numerical ranges in the step of forming the saline solution (S200) and the dyeing step (S300) are clearly classified into nine kinds of dyeing conditions as shown in Table 1 below and dyeing is performed.

The pH of the saline solution is adjusted to pH 12 according to the present invention in the step of forming the saline solution (S200).

division Powder concentration (%, owf) Liquid (weight ratio) Solution type (%) Temperature (℃) Time (min) RPM Dyeing condition 1 10 1:40 Distilled water 100 40 10 70 Dyeing condition 2 30 1:40 Distilled water 100 40 10 70 Dyeing condition 3 50 1:40 Distilled water 100 40 10 70 Dyeing condition 4 10 1:40 Distilled water 90 / ethanol 10 40 10 70 Dyeing condition 5 30 1:40 Distilled water 90 / ethanol 10 40 10 70 Dyeing condition 6 50 1:40 Distilled water 90 / ethanol 10 40 10 70 Dyeing condition 7 10 1:40 Distilled water 70 / ethanol 30 40 10 70 Dyeing condition 8 30 1:40 Distilled water 70 / ethanol 30 40 10 70 Dyeing condition 9 50 1:40 Distilled water 70 / ethanol 30 40 10 70

&Lt; Example 2 >

Dyeing pile fabrics using natural dyes.

The velvet is dyed in the same manner as in the dyeing method of Example 1 and under the dyeing conditions by using Daechung as a comparative group instead of the present invention. Daechung is a salt used for natural dyeing of the blue system such as the side, and the ground part is taken and used.

&Lt; Example 3 >

Test of surface color and color difference, color reproducibility, and salt loading using dyed dyed materials according to Examples 1 and 2 above.

Tables 2 to 3 below show the results of testing surface color and color difference, color reproducibility, and salt loading using a dyed velvet using a natural dye according to the present invention. The analytical method was performed using X-rite Color i7.

The brightness index L * and the color coordinate index a *, b * are measured, and the color difference ΔE * is calculated from these values to confirm the color reproducibility. The salting-out K / S value is measured through the spectral reflectance at the maximum absorption wavelength of 400 nm by measuring absorbance in the range of 400 nm to 700 nm of the fabric. Table 2 shows the results obtained by fixing the pH of the saline solution to 6, and Table 3 shows the results obtained by fixing the solution to pH 12 according to the present invention.

division L * a * b * DE * K / S Dyeing condition 1 77.59 -2.81 -6.16 18.73 0.18 Dyeing condition 2 63.47 -4.26 -10.89 33.44 0.51 Dyeing condition 3 55.93 -4.80 -14.06 41.62 0.80 Dyeing condition 4 75.59 -2.07 -5.01 19.62 0.23 Dyeing condition 5 73.04 -2.52 -5.92 22.33 0.29 Dyeing condition 6 73.69 -2.55 -5.82 21.71 0.27 Dyeing condition 7 80.15 -2.63 -3.57 15.40 0.15 Dyeing condition 8 74.38 -3.25 -4.83 21.14 0.27 Dyeing condition 9 73.61 -3.57 -5.57 22.18 0.27

division L * a * b * DE * K / S Dyeing condition 1 56.43 -6.35 -18.34 43.10 0.66 Dyeing condition 2 48.53 -6.05 -19.25 50.31 1.11 Dyeing condition 3 47.82 -6.20 -18.92 50.8 1.19 Dyeing condition 4 74.80 -3.93 -5.94 21.05 0.27 Dyeing condition 5 53.85 -6.30 -17.52 45.08 0.84 Dyeing condition 6 51.93 -6.02 -17.70 46.80 0.95 Dyeing condition 7 78.95 -1.75 -2.22 15.59 0.22 Dyeing condition 8 65.07 -5.28 -12.30 32.84 0.45 Dyeing condition 9 55.62 -5.58 -17.42 43.52 0.74

Tables 4 to 5 below show the surface color and color difference, color reproducibility, and salt loading of the velvet stained with the same method and dyeing conditions as those of the above-described Example 1, The test results are shown. The analytical method was performed using X-rite Color i7.

The analytical method is the same as the above, Table 4 shows the result of fixing the pH of the saline solution to 6, and Table 5 shows the result of fixing the solution to pH 12.

division L * a * b * DE * K / S Dyeing condition 1 84.64 -2.69 -3.84 11.65 0.10 Dyeing condition 2 77.64 -3.13 -8.12 19.70 0.16 Dyeing condition 3 76.06 -3.06 -10.88 22.66 0.15 Dyeing condition 4 85.34 -2.71 -4.60 11.61 0.08 Dyeing condition 5 75.89 -3.75 -9.67 21.99 0.17 Dyeing condition 6 76.10 -3.69 -9.90 21.96 0.17 Dyeing condition 7 86.28 -3.57 -4.04 10.74 0.07 Dyeing condition 8 81.03 -4.58 -8.59 17.58 0.10 Dyeing condition 9 80.30 -4.16 -8.94 18.21 0.10

division L * a * b * DE * K / S Dyeing condition 1 84.11 -6.26 -4.55 13.56 0.09 Dyeing condition 2 79.41 -5.17 -5.12 16.78 0.16 Dyeing condition 3 74.40 -5.60 -5.68 21.25 0.27 Dyeing condition 4 81.13 -6.28 -5.14 15.99 0.13 Dyeing condition 5 84.44 -6.16 -3.95 12.95 0.10 Dyeing condition 6 76.16 -6.72 -7.86 21.42 0.20 Dyeing condition 7 87.05 -4.48 -1.24 8.76 0.09 Dyeing condition 8 85.86 -5.84 -2.90 11.19 0.09 Dyeing condition 9 83.38 -5.83 -3.48 13.13 0.12

As can be seen from the results of Tables 2 to 5, it can be seen that the dyed dyes stained with the dye of the present invention are significantly superior in color reproducibility and dying ability as compared with the dyed dyes of the comparative group. In addition, in the step of forming a saline solution (S200), only the distilled water was mixed with the powdered salt, and the dyed material dyed at the dyeing condition 1 to the dyeing condition 3 using the salt solution adjusted to pH 12 had higher color reproducibility and salt- .

Washing fastness, fastness to sweat, fastness to rubbing, fastness to light, and antimicrobiality were tested using dyed dyed materials according to Examples 1 and 2 above.

FIGS. 1 to 5 show the result of testing the surface color and color difference, color reproducibility, and dyeing amount of the velvet dyed with the natural dye according to the present invention of Example 1. FIG.

FIGS. 6 to 10 show the result of testing the surface color and color difference, color reproducibility, and salt loading of the natural dyed dyestuff of Example 2 using the dyed velvet as a sample.

The dyed samples used in the test were firstly tested for surface color, chrominance, color reproducibility and salt loading using the same X-rite Color i7 analysis method as in Example 3, and the results are shown in Table 6 below.

The pH of the saline solution was fixed to pH 12, and the dyeing conditions were determined according to the conditions of Dyeing Conditions 1 to 3, which are excellent in color reproducibility and saltiness according to the results of Example 3 above.

sample L * a * b * DE * K / S indigo blue 37.96 -5.00 -20.61 59.86 2.16 Daekung 74.06 -4.51 -7.81 22.21 0.24

From the results of the tests of FIGS. 1 to 10, it was confirmed that the dyed dyed dyes using the side dyes of the present invention were superior to the dyed dyed dyes using the comparative dyed dyes. In particular, the dyed material of the present invention has excellent deodorization and fastness, and it is expected that the occurrence rate of discoloration and discoloration is low even after dyeing. Therefore, the pile dyeing method using the natural dye according to the present invention has excellent results in dyeability and color reproducibility It can be confirmed that it is derived.

Therefore, the dyeing method of pile fabrics using natural dyes according to the present invention can be applied to natural dyeing of pile fabrics by presenting optimal dyeing conditions in natural dyeing using natural dyes which are difficult to deduce dyeability and color reproducibility The process can be significantly shortened as compared with the conventional technology, and an improvement in workability and productivity can be expected.

In particular, there is almost no research in the technical field related to dyeing method using pile dye as a pile dye using natural dye, and it has excellent durability and color reproducibility as well as excellent functionality such as deodorant and antibacterial property And has an excellent fastness to provide high-quality dyestuffs.

S100: Acquisition step of powdered salt
S200: Step of forming a salt solution
S300: Dyeing step

Claims

A step S100 of obtaining a powdery salt material by washing the collected side leaves with water and then drying and pulverizing the powder to a predetermined particle size using a pulverizer;
A solution prepared by mixing distilled water or distilled water and ethanol at a weight ratio of 9: 1 to 7: 3 at a weight ratio of 1: 40 with respect to the weight of the fabric was added to the powdery dough having a concentration of 10 to 50% (owf) Stirring the mixture at a speed of 70 rpm using a stirrer, and then adjusting the pH to 12 to form a salt solution (S200);
A dyeing step (S300) of dipping the pile fabric subjected to the refining treatment in the saline solution and dyeing at 40 DEG C for 10 minutes.