JP2887047B2 - Dyeing method of textile using natural yellow dye - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for dyeing textiles using a natural yellow dye pyoverdin.

[0002]

2. Description of the Related Art Fluorescent Pseudomonas
When cultivated under certain conditions, some microorganisms belonging to the genus belong to the water-soluble yellow pigment pyovadine (pyovdin), whose main constituent compound is a quinoline chromophore bound to a cyclic peptide.
erdin) is known to accumulate in cultures. This dye cannot be easily extracted due to its high hydrophilicity, and there is no production patent for the industrial production of this dye or a patent for a use invention using this dye.

[0003]

On the other hand, examples of the yellow natural dyes include direct dyes such as gardenia, saffron and turmeric, basic dyes such as yellowfin and spinach, and Karasuyasu.
There are mordant dyes such as endju. However, since these are natural products, they are generally expensive, and there is a problem that the quality varies. In addition, none of the plant dyes had fluorescence, and none could dye a wide range of textiles. From such a viewpoint, development of a fluorescent natural yellow dye that can be stably supplied and has been desired. An object of the present invention is to provide a method for dyeing textiles using a natural yellow dye that dyes a wide range of textiles using piobadin, which is stably produced by microorganisms.

[0004]

According to a first dyeing method using a natural yellow dye of the present invention, a microorganism belonging to the genus Pseudomonas is inoculated into a liquid medium, and the microorganism is cultured in the liquid medium to produce a yellow pigment. After the addition of a titanium compound or a zirconium compound or both metal compounds as a mordant to the culture solution in which the piobadin is present, the textile is immersed in the culture solution, and the temperature is raised. This is a method for dyeing textile products immersed.

[0005] Further, the secondary dye using the natural yellow dye of the present invention is
The dyeing method is to impregnate the fiber product with tannic acid as a pre-mordant, inoculate a microorganism belonging to the genus Pseudomonas into a liquid medium, and cultivate the microorganism in the liquid medium to produce yellow pigment piobadin. After adding one or more metal compounds of a zinc compound, a tin compound, a copper compound, a chromium compound, an iron compound, a cobalt compound, a titanium compound or a zirconium compound to an existing culture solution as a mordant, the textile product is added. Is immersed in the culture solution, and the culture solution is heated to dye the immersed textile.

Hereinafter, the present invention will be described in detail. The microorganism used in the present invention is not particularly limited as long as it is a strain belonging to the genus Pseudomonas and capable of producing piobadin. As an example of this microorganism, Pseudomonas fluorescens (Pseudomonas fluorescens), mention may be made of the bacterial species such as Pseudomonas putida (Pseudomonas putida). Pseudomonas fluorescens IFO 12032 and Pseudomonas putida IFO 1205 are typical examples thereof.
5 can be mentioned.

The liquid medium for producing the piobadin of the present invention is, for example, King B medium [per liter of medium, 20 g of peptone, 1.5 g of potassium phosphate, 1.5 g of magnesium sulfate, and 10 g of glycerin (pH 7.0).
2)], but is not particularly limited as long as it is a medium that produces piobadin.

The fiber product dyed with the natural dye of the present invention may be a natural fiber, a chemical fiber or a blend of these fibers, as long as it is dyed with piobadin. For example, this textile is made of animal hair, hemp, cotton,
Fibers such as silk, vinylon, polyester, acrylic, nylon, acetate and rayon; yarns made from these fibers; and fabrics such as woven, knitted and non-woven fabrics. Fabrics include blended fabrics, blended knits, blended nonwovens, and interwoven or knitted fabrics.

The first dyeing method of the present invention is a method in which tannic acid is used as a mordant so as not to be impregnated in a fiber product in advance. Dissolve the metal compound of
In this method, a textile is immersed in the culture solution, the temperature of the culture solution is raised, and the immersed textile is dyed. As the metal compound used in this dyeing method, titanium trichloride,
Examples thereof include titanium compounds such as titanium tetrachloride and zirconium compounds such as zirconium oxychloride and zirconyl nitrate. The above or metal compounds are used alone or in combination.

The second dyeing method of the present invention is a method in which tannic acid is impregnated in a fiber product in advance using tannic acid as a mordant. For example, tannic acid in which 1 to 10% by weight of tannic acid is dissolved per fiber weight is used. An aqueous solution is prepared, and the fiber product is immersed in the tannic acid aqueous solution to impregnate the tannic acid. In the second dyeing method, as in the first dyeing method, a metal compound of 1 to 40% by weight per fiber weight was dissolved in a culture solution 20 to 100 times the weight of the fiber weight, and the culture solution was impregnated with tannic acid. This is a dip dyeing method in which a textile is immersed, the temperature of the culture solution is raised, and the immersed textile is dyed.
In the second dyeing method, in addition to the titanium compound and the zirconium compound, the metal compound includes a zinc compound such as zinc sulfate, a tin compound such as stannous chloride, stannic chloride, and sodium stannate, copper sulfate, and acetic acid. Examples thereof include copper compounds such as copper and copper chloride, iron compounds such as ferrous sulfate, ferrous chloride and iron acetate, cobalt compounds such as cobalt chloride, and chromium compounds such as chromium acetate and chromium chloride. The above-mentioned metal compounds are used alone or in combination. The method of impregnating the fiber product with tannic acid may be, for example, immersing the fiber product in the above-mentioned tannic acid aqueous solution at 50 ° C. for about 30 minutes to about 1 hour. Since it is fixed, favorable results can be obtained.

In both the first dyeing method and the second dyeing method, a normal dyeing method such as a dyeing method in which the temperature is gradually increased and the mixture is boiled for a predetermined time, or a dyeing method in which high temperature and high pressure are used, can be used. . However, since piobadin does not develop a fluorescent yellow color under acidic conditions, the pH of the dyeing liquor is preferably
Is adjusted to near neutrality.

[0012]

[Function] When a fiber product is immersed in a culture solution containing piobadin and the temperature of the culture solution is raised, a metal compound typified by a titanium compound dissolved in the culture solution becomes a mordant and the piobadin in the solution is converted into fibers. Dyed on the product and dyes the textile. If the fiber product is impregnated with tannic acid in advance as a mordant, the types of metal compound mordants added to the culture solution increase.

[0013]

Next, embodiments of the present invention will be described in detail, but the embodiments described here are merely examples, and the present invention is not limited to these embodiments.

<Example 1> Pseudomonas putida ( Ps
eudomonas putida ) A first dyeing method using piobadin produced by IFO 12055, in which tannic acid is not previously impregnated into textiles as a mordant, and using titanium trichloride as a metal compound, cotton yarn, nylon filament yarn, and vinylon spun yarn. , Acetate filament yarn, worsted yarn, rayon filament yarn, acrylic spun yarn, raw yarn, and polyester spun yarn were dyed.

That is, Pseudomonas sp.
Inoculated with Pseudomonas putida IFO12055, 30
C. for 2 days. A culture solution about 30 times the weight of the yarn was collected, and a 15% owf aqueous solution of titanium trichloride (a 20% hydrochloric acid solution diluted to 5 times with water) was added to the culture solution and dissolved. . The nine types of yarns were immersed in the culture solution, gradually heated over about 20 minutes while occasionally stirring, and left under boiling conditions for about 30 minutes. After standing, the temperature was lowered to around 30 ° C., and the above nine kinds of yarns were taken out from the culture solution, washed with tap water, and subsequently washed in a warm bath at 50 ° C. for 10 minutes.
Washed for minutes. As a result, under these dyeing conditions, seven kinds of yarns of cotton yarn, vinylon spun yarn, worsted yarn, rayon filament yarn, acrylic spun yarn, raw yarn, and polysell spun yarn other than nylon filament yarn and acetate filament yarn were converted to fluorescent yellow. Could be dyed.
In particular, worsted yarn and acrylic spun yarn were dyed well.

<Example 2> In a second dyeing method in which a textile is preliminarily impregnated with tannic acid as a mordant by using piobadin produced by Pseudomonas fluorescens IFO 12032, sulfuric acid is used as a metal compound. Using zinc, cotton yarn, nylon filament yarn, vinylon spun yarn, acetate filament yarn, worsted yarn, rayon filament yarn, acrylic spun yarn, raw yarn, and polyester spun yarn were dyed.

That is, Pseudomonas sp.
Fluorescence ( Pseudomonas fluorescens ) IFO 1203
2 and inoculated at 30 ° C. for 2 days. A culture solution about 30 times the weight of the yarn was collected, and 3% owf zinc sulfate was added to the culture solution and dissolved. First, each of the above nine kinds of yarns was placed in a 5% owf aqueous solution of tannic acid at 50 ° C.
It was immersed for 0 minutes. Next, nine types of yarns were pulled up from this aqueous solution, washed with water, and then the yarns impregnated with the nine types of tannic acid were immersed in a culture solution. The temperature of the culture was gradually raised over a period of about 20 minutes with occasional stirring, and the mixture was left under boiling conditions for about 30 minutes. After standing, the temperature was lowered to around 30 ° C., and the above nine kinds of yarns were taken out of the culture solution, washed with tap water, and then washed with a warm bath. As a result, in this dyeing method, cotton yarn, nylon filament yarn, other than acetate filament yarn, acrylic spun yarn and polyester spun yarn,
Six kinds of yarns, a vinylon spun yarn, a worsted yarn, a rayon filament yarn, and a raw yarn, could be dyed with fluorescent yellow. In particular, nylon filament yarn and vinylon spun yarn were dyed well.

[0018]

As described above, according to the dyeing method of the present invention, since piobadine which is stably produced by microorganisms is used, there is little variation in the quality of the dye, and it is inexpensive and efficient. The product can be dyed. In addition, the fiber product dyed by this method has excellent light fastness and therefore has excellent quality as compared with the dyeing process using a conventional natural dye. In particular, if the fiber product is impregnated with tannic acid as a pre-mordant, the mordant to be added to the culture solution can be selected from many metal compounds.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI D06M 16/00 Z (56) References JP-A-5-336951 (JP, A) JP-A-49-116385 (JP, A) JP-A-6-284893 (JP, A) B. BARBHAIYA and K.M. K. RAO, 'PYOVERDI NE, FLUORESCENT PIG MENT OF PSEUDMON AS AERUGINOSA', Current Science, 1985, Vol. 54, No. 15, p. 744-745 (58) Field surveyed (Int.Cl. ⁶ , DB name) D06P 1/34 C09B 61/00

Claims (3)

(57) [Claims] 1. A microorganism belonging to the genus Pseudomonas is inoculated into a liquid medium, the microorganism is cultured in the liquid medium to produce piobadin, a yellow pigment, and a titanium compound or a zirconium compound is added to a culture solution containing the piobadin. After adding one or both metal compounds as a mordant, the textile product is immersed in the culture solution, and the temperature of the culture solution is raised to dye the immersed textile product. . 2. A textile product is impregnated with tannic acid as a pre-mordant, a microorganism belonging to the genus Pseudomonas is inoculated in a liquid medium, and the microorganism is cultured in the liquid medium to produce yellow pigment piobadin. After adding one or more metal compounds of a zinc compound, a tin compound, a copper compound, a chromium compound, an iron compound, a cobalt compound, a titanium compound or a zirconium compound to an existing culture solution as a mordant, the textile product is added. A method of dyeing a textile using a natural yellow dye, wherein the textile is immersed in the culture, and the culture is heated to dye the immersed textile. 3. A textile product dyed by the method according to claim 1.