KR100447960B1 - Method for dyeing using Amur Cork Tree having good light fastness - Google Patents

Abstract

The present invention relates to a method of obtaining dyeings having high daylight fastness by treating with mordant and post-treatment with tannic acid and tin tin during dyeing using sulfur white.

The dyeing method using the sulfur white according to the present invention is a step of dyeing 30 to 90 minutes at 30 to 80 ℃ by adding a fiber fabric to 10 to 20% of the yellow white extract, after the dyeing fabric is put into a salt bath in which a mordant is dissolved Step of embedding, the embedded fabric is added to a salt bath in which tannin acid is dissolved and treated for 10 to 90 minutes at 30 to 120 ° C .; It is characterized by consisting of a post-processing for 60 minutes.

According to the present invention, using the yellow and white, which is a representative natural salt that expresses yellow, it is possible to obtain a salt having a high daylight fastness without impairing the feel of the fabric.

Description

Method for dyeing using Amur Cork Tree having good light fastness}

The present invention relates to a dyeing method using sulfur white having high daylight fastness, and more particularly, to a method of obtaining dyeing having a high daylight fastness by treating with mordant and post-treatment with tannic acid and tin tin during dyeing using sulfur white.

As the global interest in the environment is increasing, interest in natural salts is increasing, but in general, natural salts have not been commercialized due to their low fastness. Recently, many researches have been conducted on various natural salts, and various research results have been published. However, the researches have not yet reached in-depth studies to improve the shortcomings of natural salts. And those for establishing dyeing conditions.

Meanwhile, Amur Cork Tree, one of the representative dyes that express yellow color, refers to the bark of the deciduous broad-leaved arboreous tree (or yellowish white or yellow wall) belonging to the Unhyang family. It is distributed throughout the country except for Chungbuk. The bark contains Berberine, Phellodendrine, jatrorhizine and Magnoflorine. It is used as a herbal ingredient and has the effects of digestion, diuresis, health, antibacterial activity, and is widely used as a raw material for gastrointestinal drugs. It is also used as a natural dye and is used to produce bright yellow-green yellow. It is used for the purpose of not being affected by daylight such as maternity underwear or infant diaper. It is only.

Most of these researches on yellow and white are only at the stage of extracting dyeing and dyeing. For example, in order to improve the dyeing concentration and increase the color fastness, repeat dyeing, which is a general traditional dyeing method, is performed. Such simple dyeing can increase the color density, but due to the dyeing on the fiber, a lot of dyes are stained on the fibers and washed by water. Since the ionic bonds formed by large amounts of desorbed or cation-containing yellowish white pigments and anionic groups of wool fibers are easily broken by sunlight, it is not feasible to increase the light fastness. In addition, even in studies to improve daylight fastness using various mordant materials, the degree of lightfastness of grade 3 or more was not obtained. It is difficult to expect high daylight fastness with this treatment alone because sulfur white forms complexes with mordant and dyes on the fiber, but it is unstable to daylight and does not maintain its bonds. .

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, it is possible to obtain a dye having a high daylight fastness without impairing the feel of the fiber fabric in dyeing the fiber fabric with yellow white, a natural dye that expresses yellow. The purpose is to provide a dyeing method.

Dyeing method using the sulfur white according to the present invention for achieving the above object is a step of dyeing 30 to 90 minutes at 30 to 80 ℃ by adding a fiber fabric to 10 to 20% of the yellow white extract, dissolving the dyeing agent fabric After the step of embedding in the salt bath, the embedded fabric is added to a salt bath in which tannic acid is dissolved, and the treatment is carried out at 30 to 120 ° C. for 10 to 90 minutes, and the tannic acid-treated fabric is added to a salt bath in which the tin is dissolved. It is characterized by consisting of a step of post-treatment for 10 to 60 minutes at 30 to 80 ℃.

In addition, the dyeing method using the sulfur white according to the present invention is the step of pre-buying the fiber fabric in a salt bath in which the mordant is dissolved, by putting the embedded fabric in the sulfuric acid extract of 10 to 20% 30 to 90 minutes at 30 to 80 ℃ Dyeing step, the dyeing fabric is added to a tannin acid-dissolved salt bath for 10 to 90 minutes at 30-120 ℃ and the tannin acid-treated fabric is added to a salt bath dissolved in tin stone 10 to 30 to 80 ℃ It is characterized by consisting of a post-processing for 60 minutes.

The fiber fabric is preferably cotton, hemp, silk or wool, and the mordant may be any one selected from the group consisting of chromium, copper and iron.

The concentration of tannic acid is 1 to 20% by weight relative to the fiber fabric, the pH of the salt bath in which the tannic acid is dissolved is preferably adjusted to 7 to 10.

The concentration of the tin tin is preferably 30 to 60% of the tannic acid concentration.

Hereinafter, the present invention will be described in more detail.

The present invention has a high daylight fastness by post-treatment with tannic acid and tinite so as to disperse light energy by forming a stable complex in daylight after dyeing and mordant using the yellowish white extract when dyeing textile fabrics using yellow and white. There is this.

In the dyeing method using the sulfur white according to the present invention, first, using a sulfur white extract extracted with methanol, the dyeing at 30 to 90 ℃ 30 to 90 minutes. The salt bath is prepared by preparing 10 to 100 times the weight of the fiber fabric to be dyed, and adding the remaining water to 10 to 20 ml of sulfur white extract per 100 ml of salt solution. Dyeing is darker as the pH is increased, but it is preferable to dye in a neutral bath because the fiber fabric is severely damaged under alkaline conditions.

After the dyeing, mordant is carried out using mordant. The mordant is added to 1 to 10% by weight based on the fiber fabric and mordant in a neutral bath at 30 to 80 ℃ for 30 to 90 minutes. The salt bath is prepared by adding 10 to 100 times the water to the weight of the fiber fabric and completely dissolving the mordant. The mordant used at this time is preferably any one selected from the group consisting of chromium, copper and iron, and particularly preferably potassium dichromate, copper acetate or iron sulfate.

After the mordant treatment, high light fastness of the chlorine can be obtained by washing with water to remove unfixed matter of the fiber fabric, followed by tannic acid treatment and topiranite treatment.

Tannic acid is generally used as a mordant, but in the present invention, it was used in a separate post-treatment process rather than as a mordant. In addition to the fiber fabric and mordant, it forms a complex that is stable to dyes and sunlight to disperse the light energy to disperse the pigment. In the present invention, both high molecular weight tannic acid having a molecular weight of 1701 and low molecular weight tannic acid having a molecular weight of 322 can be used, and all of them are commercially available.

The tannic acid is lower in brightness as the tannin acid treatment concentration is increased, the color change is smaller as the tannin acid treatment concentration is lower, the preferred amount of tannin acid is 1 to 20% by weight of the fiber fabric, more preferably 1 to 10% by weight desirable. When the amount of tannic acid is lower than 1% by weight, high daylight fastness cannot be obtained. When the amount of tannic acid is higher than 20% by weight, the lightfastness tends to be inferior. The tannic acid-added salt bath is prepared by completely dissolving water by adding 10 to 100 times the weight of the fiber fabric. After adjusting the pH of the salt bath to 7 to 10, the fiber fabric is added and treated for 10 to 90 minutes at 30 to 120 ℃. If the salt bath is a strong acid or strong alkaline severe pH conditions it is not preferable because it causes damage to the fabric. In addition, the treatment temperature and time of tannic acid may vary depending on the type of mordant. However, the longer the treatment time, the greater the effect. In the case of low temperature, the treatment of tannin for a long time, the treatment for a short time at a high temperature, higher light fastness Can be obtained.

The tinite treatment is finally performed on the tannin acid-treated fiber fabric.

The salt bath is prepared by dissolving the tin concentration in a concentration corresponding to 30 to 60% of the tannic acid treatment concentration and adding 10 to 100 times water to the weight of the fiber fabric. It is preferable to add the finished fabric to the tannic acid treatment in this salt bath, and to treat it for 10 to 60 minutes at 30 to 80 ℃. The post-treatment aftertreatment may be treated under the same conditions regardless of the type of mordant used, unlike tannic acid treatment. After the tin tin treatment, it is washed with water and dried to remove the unfixed matter remaining in the fabric.

In the dyeing method using the sulfur white according to the present invention, after the dyeing and tannin acid treatment and the tin stone treatment after the dyeing step in the pretreatment step before the dyeing with the sulfur white extract, after the dyeing treatment, tannin acid treatment and tin stone treatment Similarly, it can lead to an improvement in daylight fastness.

In addition, it is better to proceed with the above-mentioned treatment process continuously, but if it is unavoidable to process continuously, it should be dried in the shade away from direct sunlight. Be careful.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are for illustration only and should not be understood as limiting the scope of the invention.

Example 1

100 g of sulfur white was added per 700 ml of methanol, refluxed at 67 ° C. for 1 hour, and filtered twice to obtain a yellow white extract. 15 ml of 100 ml salt solution was prepared for this sulfur white extract, and water was added to prepare a salt bath 50 times the weight of the wool to be dyed. Then, the wool was dyed and dyed in a neutral bath at 70 ° C. for 60 minutes. After dyeing, potassium dichromate was used as a mordant and then mordified at 50 ° C. for 60 minutes using 3% by weight of the wool, followed by washing with water. 5% of the low molecular weight tannic acid by weight of the wool was prepared, 50 times of water was added thereto to completely dissolve the pH 7, and then the wool was added and treated at 80 ° C. for 60 minutes. The tin was prepared by 2.5% by weight of the wool and dissolved by adding 50 times the amount of water and then the wool was added and treated for 30 minutes at 60 ℃ and washed with water and dried.

The daylight fastness of the finished dyeing solution was measured according to the method of KS K 0700 using a daylight fastness meter and the results are shown in Table 1 below.

Example 2

Dyeing was completed in the same manner as in Example 1 except that tannic acid was used as the high molecular weight tannic acid.

Daylight fastness of the dye to be completed is measured in the same manner as in Example 1 and the results are shown in Table 1 below.

Example 3

The dyeing was completed in the same manner as in Example 1 except that pre-staining was performed before dyeing using copper acetate as a mordant and tannic acid was used as the high molecular weight tannic acid.

Daylight fastness of the finished dyeing is shown in Table 1 below.

Comparative Example 1

100 g of sulfur white was added per 700 ml of methanol, refluxed at 67 ° C. for 1 hour, and filtered twice to obtain a yellow white extract. 15 ml per 100 ml of the brine extract was prepared, and water was added to prepare a salt bath 50 times the weight of the wool to be dyed. The wool was added to the prepared dye bath and dyed in a neutral bath at 70 ° C. for 60 minutes.

Daylight fastness of the finished dyeing was measured in the same manner as in Example 1 shown in Table 1 below.

Comparative Example 2

After dyeing in the same manner as in Comparative Example 1, potassium dichromate was used as a mordant to 3 minutes by weight of the wool and then mordant at 50 ℃ for 60 minutes and washed with water to complete the dyeing.

Daylight fastness of the finished dyeing is shown in Table 1 below.

Comparative Example 3

After dyeing in the same manner as in Comparative Example 1 to prepare a high molecular weight tannin acid 5% by weight of the wool, completely dissolved by adding 50 times the amount of water to the pH 7, and then put the wool to 40 at 50 ℃ The stain was completed by treatment for a minute.

Daylight fastness of the finished dyeing is shown in Table 1 below.

Comparative Example 4

After the dyeing and post-staining treatment using chromium in the same manner as in Comparative Example 2 to prepare a high molecular weight tannic acid 5% by weight of the wool, completely dissolved by adding 50 times the water of wool to adjust the pH7 Wool was added and treated at 80 ° C. for 60 minutes to complete dyeing.

Daylight fastness of the finished dyeing is shown in Table 1 below.

Table 1

In the case of treatment with tannic acid and tinite after dyeing and mordant treatment according to the above example, both low molecular weight tannic acid (Example 1) and high molecular weight tannic acid (Examples 2 and 3) were subjected to such post-treatment. When only yellow and white dyeing was performed (Comparative Example 1), only dyeing and mordant treatment (Comparative Example 2), only tannin acid treatment without mordant treatment (Comparative Example 3), and only roughness until dyeing, mordant treatment and tannic acid treatment (Comparative) It can be seen that the daylight fastness is much improved than Example 4.

In the above examples, only the example of obtaining high daylight fastness using wool as a fiber fabric is shown, but excellent daylightfastness can be obtained even if other natural fibers such as cotton, hemp or silk fiber other than wool are dyed by whitening by the method according to the present invention. Can be.

Daylight fastness level 4 corresponds to the daylight fastness of the clothes and textile products used commercially according to the present invention can be used as a variety of products after the mordant treatment and UV absorber treatment.

According to the present invention, after dyeing and embedding, tannin acid and post-treatment can be used to obtain a dye having high daylight fastness without damaging the texture of the fiber by using yellowish yellow, which is a natural dye material that expresses yellow color.

In addition, by dyeing the yellow-white in the above method, it can contribute to the production of high-value-added products by using the antibacterial and deodorizing properties of the yellow-white, and yellow-white dyeing can be applied to external use or curtains by realizing high light fastness. It has the effect of broadening the application of dyeing.

While the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention.

Claims (12)

Adding fiber fabric to 10-20% of yellowish white extract and dyeing for 30 to 90 minutes at 30 to 80 ° C; Putting the dyed fabric into a salt bath in which a mordant is dissolved and post-mortem; Adding the embedded fabric to a salt bath in which tannic acid was dissolved, and then treating the fabric for 10 to 90 minutes at 30 to 120 ° C .; And Putting the tannin acid-treated fabric into a salt bath in which the tin was dissolved, and then performing post-treatment at 30 to 80 ° C. for 10 to 60 minutes; Dyeing method using sulfur white having a high daylight fastness, characterized in that consisting of. The method of claim 1, The fiber fabric is a dyeing method using the high white light fastness, yellow and white, characterized in that cotton, hemp, silk or wool. The method of claim 1, The method of dyeing with sulfur white having high light fastness, characterized in that the mordant is any one selected from the group consisting of chromium, copper and iron. The method of claim 1, The concentration of tannic acid is 1 to 20% by weight relative to the fiber fabric, characterized in that the dyeing method using the yellowish white with high light fastness. The method of claim 1, PH of the salt bath in which the tannic acid is dissolved is adjusted to 7 to 10, characterized in that the dyeing method using sulfur white with high daylight fastness. The method of claim 1, The staining method using the sulfur white with the high daylight fastness, characterized in that the concentration of the tin tin is 30 to 60% of the concentration of tannic acid. Pre-buying a fiber fabric in a salt bath in which a mordant is dissolved; Dyeing the embedded fabric in 10-20% sulfur white extract for 30-90 minutes at 30-80 ° C; Putting the dyed fabric into a salt bath in which tannic acid was dissolved, and then treating the dyeing fabric at 30 to 120 ° C. for 10 to 90 minutes; And Putting the tannin acid-treated fabric into a salt bath in which the tin was dissolved, and then performing post-treatment at 30 to 80 ° C. for 10 to 60 minutes; Dyeing method using sulfur white having a high daylight fastness, characterized in that consisting of. The method of claim 7, wherein The fiber fabric is a dyeing method using the high white light fastness, yellow and white, characterized in that cotton, hemp, silk or wool. The method of claim 7, wherein The method of dyeing with sulfur white having high light fastness, characterized in that the mordant is any one selected from the group consisting of chromium, copper and iron. The method of claim 7, wherein The concentration of tannic acid is 1 to 20% by weight relative to the fiber fabric, characterized in that the dyeing method using the yellowish white with high light fastness. The method of claim 7, wherein PH of the salt bath in which the tannic acid is dissolved is adjusted to 7 to 10, characterized in that the dyeing method using sulfur white with high daylight fastness. The method of claim 7, wherein The staining method using the sulfur white with the high daylight fastness, characterized in that the concentration of the tin tin is 30 to 60% of the concentration of tannic acid.