KR100553264B1 - A method of dyeing textile using far infrared radiation-ceramics - Google Patents

Abstract

The present invention relates to a fiber dyeing method using a far-infrared radiation ceramic, when dyeing by the fiber dyeing method of the present invention can obtain a dyeing effect excellent dyeing and fastness even using a natural dye.

Natural Dyeing, Dyeing, Fastness, Far Infrared Radiation Ceramic

Description

Fiber dyeing method using far-infrared radiation ceramics {A METHOD OF DYEING TEXTILE USING FAR INFRARED RADIATION-CERAMICS}

The present invention relates to a fiber dyeing method using a far-infrared radiation ceramics, and more particularly, to a fiber dyeing method using a far-infrared radiation ceramics capable of improving dyeing property and color fastness.

Dyes used for dyeing include synthetic dyes and natural dyes such as animal, vegetable and mineral dyes. Natural dyes have advantages in that they are less toxic to humans, less environmental pollution, and less wastewater treatment costs than synthetic dyes. However, when dyeing using a natural dye, there is a problem that the dyeing and dyeing fastness is not excellent.

In general, dyeing is the dye molecules are adsorbed on the surface of the fiber, and the surface of the fiber added to the salt solution has functional groups causing ionic dissociation, so that the charge is large and small by selective adsorption of ions and orientation adsorption of dipoles. These charges cause the adsorption of dye molecules. That is, dyeing is performed by the action of intermolecular attraction by hydrophobic hydration between the dye molecules and fibers, ionic bond orientation force, dispersion force and the like.

In general, the fibers in the salt bath have negative (-) charges on the surface. If the dye molecules have negative (-) ions, the electrostatic repulsive force acts between them, making dye molecules difficult to adsorb onto the fiber, resulting in poor dyeing. .

In order to adsorb the dye molecules well to the fiber molecules, it is necessary to break through the potential barrier caused by the charging of the fiber surface. This potential barrier corresponds to another (ζ-) potential. If the (ζ-) potential barrier is high, dye molecules are hardly adsorbed on the fiber surface. On the other hand, by lowering the (ζ-) potential, salts are added to the salt bath or acidity (pH) is adjusted to allow dye molecules to penetrate and diffuse into the fiber through the potential barrier on the fiber surface. However, when the attraction of the dye molecules to the fiber molecules weakly acts, since the dye molecules do not penetrate into the fiber and are adsorbed only on the surface of the fiber, staining occurs and the fastness of the fastness occurs.

In the synthetic dyes, a method of synthesizing can be used to facilitate the adsorption between the synthetic organic dye molecules and the fiber, but in the case of natural dyes, such a method cannot be used.

Korean Patent Publication No. 1999-7624 discloses a method for improving dyeing fastness, which is a disadvantage of natural dyes by treating a natural dye with an anionizing agent, by means of an electrostatic ionic bond with a fiber, but treating the salt bath with a cationic agent. Since the process of treating the dye with an anionizing agent has to be performed separately, it is complicated in the process and has not yet reached a satisfactory level in dyeing and fastness.

Therefore, to solve the above problems, an object of the present invention is to provide a fiber dyeing method using a far-infrared radiation ceramic that can improve the dyeing and fastness of the dye.

In order to achieve the above object, the present invention is a textile dyeing method comprising the step of adding the fabric to the salt bath containing the salt solution, dyeing, washing, dehydration, and drying process, the salt bath comprises a far-infrared radiation ceramic The far-infrared radiation ceramic provides a fiber dyeing method which is manufactured by mixing ceramic minerals and clay and then molding and firing at 1300 to 1500 ° C.

Hereinafter, the present invention will be described in detail.

Far-infrared refers to a portion of a long wavelength in the infrared region, and because the wavelength region is close to the natural frequency of the organic compound molecules and easily resonates, it causes the far-infrared ray to be projected onto a cluster of molecules and water of a natural dye made of the organic compound. This breaks down the association structure of water and activates its molecular motion.

Based on the above-described action of far infrared rays, the present invention finds that dyes can be promoted by activating the movement of water molecules by subdividing the association structure of water molecules using ceramics that emit far infrared rays. To complete.

Far-infrared radiation ceramics used in the fiber dyeing method of the present invention is prepared by mixing ceramic minerals and clay, molding the mixture, and firing the molding at 1300 to 1500 ° C.

Far-infrared radiation ceramics used in the fiber dyeing method of the present invention is preferably prepared by mixing and molding a ceramic mineral and clay, and then calcining at 1300 to 1500 ℃.

As the ceramic mineral, a silicon carbide silica nitrogen compound, elvan, pegmatite, feldspar, or fluorite, which are generally known as materials emitting far infrared rays, may be used, and a double silicon carbide silica compound may be preferably used. In addition, the clays are used one or more selected from the group consisting of kaolin, ocher, black clay, white clay and red earth.

The mixing ratio of the ceramic mineral and clay is preferably mixed in a weight ratio of 3-7: 7-3, more preferably in a weight ratio of 5: 5. In addition, the molding of the mixture of ceramic minerals and clays may be performed by conventional molding methods, and the size and shape of the molding may not be limited. Preferably, the molding may be performed in a ball shape or a disk shape using a molding mold. More preferably, a spherical shape having an average diameter of 10 mm is preferable. Moreover, baking of a molded object is good at 1300-1500 degreeC.

In addition, in order to prepare a molding which generates far infrared rays of 5.6 to 15 μm, the molding is 10 to 65 wt% SiO ₂ , 10 to 30 wt% Al ₂ O ₃ , 5 to 20 wt% MgO, 1 to 70 wt Ceramic mineral and clay may be appropriately blended to contain% Fe ₂ O ₃ .

In the dyeing method using the far-infrared radiation ceramic of the present invention, the far-infrared radiation ceramic is dyed by laying 0.1 to 10 cm thick on the bottom of the salt bath. Preferably, the salt bath is provided with a heating means. Heated far-infrared radiation ceramics have increased far-infrared emissivity. The heating temperature of the far-infrared radiation ceramic is preferably 20 ° C or higher, more preferably 40 ° C to 80 ° C.

When the far-infrared radiation ceramics are dyeed by adding them to a salt bath, the far-infrared radiation ceramics help dye dye molecules. Inside the fiber, there are crystal regions in which the molecular chains are partially aligned and amorphous regions in which the molecular chains are separated from each other and exhibit a loose structure. When the molecules of the dye are large, the dye molecules do not penetrate to the crystal region of the fiber, but penetrate into the amorphous region to bind and dye with ions in the amorphous region. Appropriate heat and time must be given to proceed with the process. In the above process, the water in the salt bath is not an aggregate in which a single molecule (H ₂ O) of water is gathered in one place, but several water molecules are combined to form an aggregate of water of (H ₂ O) _n . The association of water is not subdivided even when given a considerable amount of heat from the outside, but in the case of projecting far-infrared rays, the association of water is subdivided and the movement of water molecules is activated, thereby increasing the potential energy of dye molecules due to the energy potential to help dyeing. It becomes possible.

The far-infrared radiation ceramic of the present invention emits far infrared rays of 5.6 to 15 μm when measured against a blackbody using a Fourier transform-infrared spectrometer (FT-IR spectrometer). Can play a variety of roles. When the ceramic is placed in the bottom of the salt bath and dyed, the association structure of water is subdivided by far-infrared radiation, and the molecular movement of water is activated. The period of vibration is determined by the shape of the mass distribution of the mass of each atom. According to the theory of vibration, projecting an electromagnetic wave at the natural vibration frequency of a molecule causes resonance, increasing amplitude and increasing vibration, thus raising the internal temperature of the object. Let's go. Since the resonance phenomenon becomes stronger as the temperature increases, the dyeing and fastness can be improved because the dyeing amount is increased by facilitating the penetration of dye molecules by widening the crystalline and amorphous regions of the fiber.

 In the fiber dyeing method of the present invention, both natural and synthetic dyes can be used. Natural dyes can be used vegetable dyes, animal dyes, or mineral dyes such as gardenia, turmeric, safflower, joiner, yellow and white, which are commonly used.

In the present invention, in order to further increase the function of the far-infrared radiation ceramic, a liquid ionizing compound may be further added to the salt bath. Liquid ionization compounds can promote and enhance the penetration of dye molecules into the fibers by selectively adsorbing 2H ⁺ and O ^2- ions, which are dipoles of water molecules.

The liquid ionization compound is prepared by dissolving sodium silicate and sodium aluminate in water, the amount of sodium silicate in 1 liter of water is preferably dissolved 100 to 500 g, sodium aluminate 20 to 100 g. In addition, the amount of the liquid ionization compound to be used can be appropriately controlled, and preferably, 1 to 10 liters of the liquid ionization compound is used in a salt solution of 100 to 1000 liters.

The liquid ionizing compound has a bipolar charge of the negative charge of the silicate anion (SiO ₂ ⁻ ) of sodium silicate and the positive charge of the AlO ₂ ⁺ cation of sodium aluminate. Therefore, when the liquid ionization compound is added to the salt bath, the anion and cationic charges of the dye molecules are allowed to penetrate into the amorphous region as well as the crystal region of the fiber together with the water molecules, so as to bind strongly with the salted seat there. Therefore, the daylight and flush fastness can be improved.

In the case of using the liquid ionization compound in the dyeing method using the far-infrared radiation ceramic of the present invention, the addition of the liquid ionization compound is preferably performed by increasing the temperature of the salt solution in the salt bath to about 40 ° C.

In the present invention, color development can be promoted and color can be controlled by a mordant treatment known in the art of dyeing. The mordant may be alum, iron or the like.

In the fiber dyeing method of the present invention, the far-infrared radiation ceramic is added to the bottom of the salt bath and, if necessary, the dyeing process is carried out by putting the textile fabric to be dyed in the salt bath to which the liquid ionization compound is added, followed by the normal washing and dehydration. The dyeing fabric is manufactured through a drying process.

Hereinafter, preferred examples and comparative examples of the present invention are described. However, the following examples are only preferred embodiments of the present invention, and the present invention is not limited to the following examples.

(Example 1)

50 g of ganguerite and 50 g of clay were mixed and molded into a ball-shaped mold having a diameter of 10 mm, and fired at 1400 ° C. to produce a far-infrared radiation ceramic ball. Far-infrared radiation ceramic balls were laid 1 cm thick on the bottom of the salt bath, and 200 L of Gardenia saline was added to the salt bath. The cotton fabric was added thereto, soaked for 1 hour, dyed, washed and dried.

(Example 2)

The fabric was dyed in the same manner as in Example 1, and the cotton fabric was immersed and dyed while heating the far-infrared radiation ceramic to 40 ° C. with a heating apparatus in a salt bath.

(Example 3)

Far-infrared radiation ceramic balls prepared by the method of Example 1 were laid 1 cm thick on the bottom of the salt bath, and 200 L of Gardenia saline was added to the salt bath. After heating the far-infrared radiant ceramic to 40 ° C. with a heating device in a salt bath, the temperature of the salt solution was raised, followed by water containing 300 g of a liquid ionizing compound solution (sodium silicate (melting point 72 ° C.) and 70 g of sodium aluminate (pH 12.3)). 1 L) was added, and the cotton fabric was added and soaked for 1 hour for dyeing. The temperature in the salt bath was maintained at 40 ° C. during immersion.

(Comparative Example 1)

200 L of Gardenia dye was added to a salt bath, and the cotton fabric was immersed and dyed.

(Comparative Example 2)

Put 200 liters of Gardenia dye in a salt bath, mix 1 liter of liquid ionization compound solution (1 L of water containing 300 g of sodium silicate (melting point 72 ° C) and 70 g of sodium aluminate (pH 12.3)) and then immerse the cotton fabric. By staining.

Experimental Example 1

Fabrics dyed by the methods of Examples 1 to 3 and Comparative Examples 1 and 2 were subjected to the light fastness according to KS K 0770, the laundry fastness test according to KS K 0430.

As a result, when the fiber dyeing method of the present invention was used, it was confirmed that the dyeing property, the light fastness and the wash fastness were excellent.

Experimental Example 2

50 men and women working in the textile dyeing industry were evaluated for the dyeing state of the fabric dyed by the method of Examples 1 to 3 and Comparative Examples 1 and 2.

The evaluation was performed by obtaining an average value of 0 to 10 points for each item on dyeing color satisfaction, staining, dyeing and sharpness.

Dyeing Color Satisfaction Stain Dyeing   definition Example 1 8.2 0.2 9.2 8.4 Example 2 8.6 0 9.0 8.6 Example 3 9 0 9.4 9.8 Comparative Example 1 4.8 4.2 5.0 6.2 Comparative Example 2 6.2 3.6 5.0 6.2

     From the results of Table 1, the dyeing color satisfaction, sharpness and dyeability of the fabric dyed by the dyeing method of the present invention was superior to the fabric dyed by the conventional method, in particular the fabric dyed by the dyeing method of the present invention thick after dyeing The color was dark, bright in color, and hardly spotted.

As mentioned above, the fiber dyeing method using the far-infrared radiation ceramic of the present invention improves the dyeing and fastness of the dye during the dyeing of natural dyes.

Claims (6)

In the fiber dyeing method comprising the step of putting the fabric into the salt bath containing the salt solution, dyeing, washing, dehydration, and drying process, The salt bath comprises a far-infrared radiation ceramic, The far-infrared radiation ceramic a) at least one ceramic mineral selected from the group consisting of elvan, pegmatite, feldspar, and fluorite; and b) one or more clays selected from the group consisting of kaolin, loess, black soil, white clay, and red soil It is prepared by mixing at a weight ratio of 3: 7 to 7: 3 and then molded and calcined at 1300 to 1500 ℃, Fiber dyeing method comprising the step of adding a sodium ion solution and sodium aluminate solution of the liquid ionization compound to the salt solution during the dyeing process. delete delete delete delete delete