KR20170120386A - UV Photografting padding liquor and Method of dyeing using the same - Google Patents

Abstract

The present invention relates to a padding liquid for staining ultraviolet light, and a dyeing method using the same, and more particularly, to a dyeing method using ultraviolet light-excited photoinitiator, To a padding liquid for dyeing fibers and a dyeing method using the same.
INDUSTRIAL APPLICABILITY According to the padding solution for ultraviolet ray-irradiated photographic grafting according to the present invention and the dyeing method using the same, it is possible to dye even a small amount of water at room temperature, thereby reducing energy consumption and not using a neutral salt or an alkali catalyst for reaction It has an eco-friendly effect.
In addition, according to the padding solution for ultraviolet ray-irradiated photographic grafting according to the present invention and the dyeing method using the same, unlike the adsorption-based dyeing process, by photo-graft polymerization by irradiating ultraviolet rays, There is an effect that can dye.

Description

TECHNICAL FIELD [0001] The present invention relates to a padding liquid for staining ultraviolet light and a dyeing method using the same,

The present invention relates to a padding liquid for staining ultraviolet light, and a dyeing method using the same, and more particularly, to a dyeing method using ultraviolet light-excited photoinitiator, To a padding liquid for dyeing fibers and a dyeing method using the same.

Dyeing refers to dyeing in a dyeing liquid which is transferred to a dyed material such as fiber, film, leather, etc. through a medium such as water, and has a certain degree of fastness due to a physicochemical reaction with the dyed material.

The dyes used for dyeing are classified into natural dyes such as animal dyes, plant dyes and mineral dyes, direct dyes, synthetic dyes such as acidic and basic dyes, mordant dyes, disperse dyes and reactive dyes.

A dyeing method using these dyes is known as follows.

Korean Patent No. 10-0535320 (method of dyeing fabrics using natural dyes) is characterized by adding DMSIP or SIPEG to OWF in an amount of 0.5-5.0 wt% in order to impart an electrostatic function to the fibers after the refining and bleaching process, A step of imparting the functionality of the fiber by reacting at 80 DEG C for 10 to 30 minutes and adjusting the ratio of the liquid (OWF) to 1: 20-40 to dissolve the natural dye in an amount of 0.5-5.0 wt% For 20 minutes, and then heated to 80 DEG C for 60 minutes. The mordanting agent was mulled at 40-90 DEG C using 1-4% by weight of OWF as a mullion of aluminum mordanting agent, and then dehydrated 1-2 times with water And drying the resultant dyed product; and a step of adding 0.5-5.0 wt% of TiO 2 ultrafine colloidal to the OWF with respect to the dyed product, which is dried in the processing step, followed by a softening treatment and drying.

Also, Korean Patent No. 10-1440280 (binding dyeing method) comprises a scouring step (S12) for scouring chemically stained dyed products using chemical dyes and removing impurities remaining in the dyed products, A dyeing step (S13) of dyeing the dyed material with an environmentally friendly dye; a mordanting step (S14) of fixing the environmentally friendly dye to the dyed material by adding a mordant to the dyed material; A washing step (S15) of removing the mordanting agent, and a drying step (S16) of drying the dyed material.

In the above patent documents and general dyeing methods, a dye is immersed in a saline solution and then dried. In this process, a large amount of water is used and addition of a dyeing aid such as neutral salt or alkali is required and a long time of adsorption is required at a high temperature .

Radiation grafting, on the other hand, forms a grafted copolymer using not only thermal energy but also electromagnetic spectrum of a specific region. It is a high energy irradiation graft using electron beam, X-ray, gamma ray, etc. and visible ray, ultraviolet ray Energy-irradiated grafts.

Among them, ultraviolet irradiation and electron beam irradiation are actively used in various industrial fields. High energy irradiation such as electron beam, gamma ray, and X-ray irradiation is limited by the thickness of the irradiated object and light absorption, while a vacuum condition and a nitrogen atmosphere are required A shielding device is required, so that the device is large and expensive.

On the other hand, ultraviolet ray irradiation photographic grafts change the surface properties by irradiating ultraviolet rays to treat the surface of the fiber polymer through radical / ion photopolymerization or photo-crosslinking reaction of a photoactive material such as a comonomer or an oligomer, It has the advantages of affinity, energy saving, high continuous production speed, high resolution patterning ability, three-dimensional structure processing ability, small size of equipment and reduction of equipment area, .

Korean Patent No. 10-0535320 (Method of dyeing fabrics using natural dyes) Korean Patent No. 10-1440280 (binding dyeing method)

In order to solve the above problems, an object of the present invention is to provide a padding liquid for dyeing fibers by initiating photo-graft polymerization of reactive dyes by substituting hydrogen at the fiber surface and forming radicals by a photoinitiator excited by ultraviolet rays And to provide a dyeing method using the same.

In order to solve the above problems, the present invention provides a padding liquid for dyeing ultraviolet light, comprising: a reactive dye to be covalently bonded to fibers; A photoinitiator excited by ultraviolet light to initiate photo-graft polymerization of the reactive dye; And a solvent.

The reactive dye is characterized by having a vinyl sulfone photoreactive group, and is characterized by being added in an amount of 0.53 to 8.0% by weight based on the solvent.

The photoinitiator is an acetophenone type dye, and the photoinitiator is added in an amount of 3 to 9% by weight based on the weight of the reactive dye.

The padding liquid further comprises a comonomer for improving the dyeability of the reactive dye, wherein the comonomer is vinylsulfonic acid, and 0.12 to 0.72% by weight of the reactive dye is added .

And the padding solution has a pH of 9 to 11.

According to another aspect of the present invention, there is provided a dyeing method using a padding solution for dyeing ultraviolet light, comprising: a step (S100) of producing a padding solution; (S200) irradiating the padding solution with ultraviolet light to irradiate ultraviolet light after wetting the fiber with ultraviolet light.

The padding liquid manufacturing step (S100) comprises: a solvent; A reactive dye added in an amount of 0.53 to 8.0% by weight based on the solvent; Wherein the photoinitiator is added in an amount of 3 to 9% by weight based on the weight of the reactive dye and is adjusted to have a pH of 9 to 11.

The reactive dye is characterized by having a vinyl sulfone photoreactive unit.

The photoinitiator is an acetophenone-based photoinitiator.

The padding liquid preparation step (S100) may further include adding a vinyl sulfonic acid comonomer to be added in an amount of 0.12 to 0.72 wt% with respect to the reactive dye.

The ultraviolet ray irradiation step (S200) is performed under irradiation energy of 5 to 30 J / cm2 per unit area.

The ultraviolet ray irradiation step (S200) is characterized by using a mercury lamp or a UV-LED lamp.

As described above, according to the padding solution for staining ultraviolet light of the present invention and the dyeing method using the same, it is possible to dye even a small amount of water at room temperature, thereby reducing energy consumption, There is an eco-friendly effect because it is not used.

According to the padding solution for ultraviolet irradiation optical graft dyeing according to the present invention and the dyeing method using the same, unlike the adsorption-based dyeing process, by photo-graft polymerization by irradiating ultraviolet rays, dyeing of various fibers There is a possible effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a dyeing method using a padding liquid for staining UV-irradiated light grafts according to the present invention. FIG.
2 is a graph showing the emission wavelength of the lamp used in the ultraviolet ray irradiation step (S200) according to the present invention.
FIG. 3 is a graph showing the change of absorbance with increasing ultraviolet irradiation amount in the ultraviolet ray irradiation step (S200) according to the present invention.

Specific features and advantages of the present invention will be described in detail below with reference to the accompanying drawings. The detailed description of the functions and configurations of the present invention will be omitted if it is determined that the gist of the present invention may be unnecessarily blurred.

The present invention relates to a padding liquid for staining ultraviolet light, and a dyeing method using the same, and more particularly, to a dyeing method using ultraviolet light-excited photoinitiator, To a padding liquid for dyeing fibers and a dyeing method using the same.

The padding liquid for dyeing ultraviolet light according to the present invention includes a reactive dye for covalently bonding with fibers and a photoinitiator for initiating photo-graft polymerization of the reactive dye by ultraviolet rays, and a solvent, Distilled water is used as a solvent.

As the reactive dye, a dye including a vinyl sulfone photoreactive group is used. The vinylsulfone-based reactive dye is more stable than the other reactive dyes due to hydrolysis and has excellent dyeability, .

Also, it can be used for dyeing of cold pad batch (cold pad batch) as well as for dyeing, printing and continuous dyeing, so that it can broaden the application range of dyeing.

The reactive dye is not limited as long as it is a vinylsulfone-based dye, and specific examples thereof include C.I. Reactive Black 5, C.I. Reactive Orange 16, Remazol dyes, and the like can be used.

The reactive dye is added in an amount of 0.53 to 8.0% by weight based on the solvent. If the reactive dye is added at a concentration of less than 0.53%, the amount of dye participating in the dyeing is small and dyeing and fixing effect is insignificant. The effect of increasing the dyability with the increase is insignificant, and therefore, it is preferable not to deviate from the above range.

More specifically, when an excess amount of a reactive dye as a monomer is added, ultraviolet light necessary for excitation of the photoinitiator is also absorbed (see FIG. 3), so that the hydrogen substitution reaction of the photoinitiator is inhibited and the photo-grafting of the dye is reduced.

Therefore, if the dye concentration is too high to limit the light absorption of the photoinitiator, it is not expected to improve the dyeability of the dye by photografting.

The photoinitiator is an acetophenone type. Acetophenone is a self-destructive photoinitiator. Although it is not a typical hydrogen-substituted photoinitiator, the radical generated by self-decay diffuses to enable homogeneous hydrogen substitution.

Examples of the acetophenone type photoinitiator include benzyl dimethyl ketal, 2-hydroxy-methyl-1-phenyl propane, 1-hydroxy-cyclohexyl phenyl ketone, α-amino ketone and acyl phosphine oxide. .

When the photoinitiator is added in an amount of less than 3% by weight based on the total weight of the reactive dye, a sufficient K / S value can not be secured until the dyeing rate is reached or the reaction equilibrium is reached. If it is added in an amount of more than 1% by weight, it is preferable not to deviate from the above range because it can accelerate not only the generation reaction of the polymer radical but also the stopping reaction of the growth radical.

The padding liquid further comprises a comonomer, wherein the comonomer is a vinyl sulfonic acid.

The comonomer can be improved in dyeability by photografting the fibers upon irradiation with ultraviolet rays, and the dense crosslinked structure is formed, so that the dye can not easily be desorbed during water washing after ultraviolet ray irradiation.

When the concentration of the comonomer is less than 0.12% by weight based on the total weight of the reactive dye, it is difficult to expect an improvement in the fixing rate. When the content of the comonomer is more than 0.72% by weight The photografting initiation efficiency is lowered and rather the formation of the graft copolymer is interrupted, so that the effect of increasing the crosslinking degree and increasing the fixing rate with the increase of the comonomer content is insignificant.

The padding liquid is characterized by having a pH of from 9 to 11. The lower the pH is, the lower the water solubility of the comonomer is, and since it is difficult to participate in the photo-graft polymerization reaction of the dye, .

The dyeing method using the padding solution for staining ultraviolet light according to the present invention is characterized by using the padding solution for staining ultraviolet light. Hereinafter, the detailed description will be omitted. .

FIG. 1 is a flow chart of a dyeing method using a padding solution for ultraviolet light irradiation optical grafting according to the present invention. The dyeing method using a padding solution for ultraviolet light irradiation optical grafting according to the present invention is a method of dyeing padding (S100), and an ultraviolet ray irradiation step (S200) of irradiating ultraviolet rays by irradiating ultraviolet rays after the fibers are impregnated with the padding solution.

The padding liquid preparation step (S100) comprises mixing a solvent and a reactive dye added in an amount of 0.53 to 8.0 wt% based on the solvent and a photoinitiator added in an amount of 3 to 9 wt% based on the reactive dye, do.

The reactive dye has a vinyl sulfone photoreactive group, and the photoinitiator uses an acetophenone series.

In addition, the padding liquid preparation step (S100) may further include a vinylsulfonic acid comonomer to be added in an amount of 0.12 to 0.72% by weight based on the weight of the reactive dye.

The ultraviolet ray irradiation step (S200) is preferably performed under irradiation energy of 5 J / cm 2 to 30 J / cm 2 per unit area. When the ultraviolet ray irradiation energy is less than 5 J / cm 2, photografting polymerization is not initiated, / cm < 2 > is accompanied by not only a radical generation and recombination reaction but also an oxidation reaction by cutting of the graft chain.

More specifically, as the ultraviolet irradiation energy is increased, the graft rate is also increased, but it is preferable that the ultraviolet energy does not exceed the above range because too much ultraviolet energy may cause destruction of the formed crosslinking and damage of the surface of the fabric.

The ultraviolet ray irradiation step (S200) is characterized by using a mercury lamp or a UV-LED lamp, more preferably a UV-LED lamp.

FIG. 2 shows the emission wavelength of the lamp used in the ultraviolet ray irradiation step (S200), wherein (a) is a UV-LED lamp and (b) is a light emission wavelength of a mercury lamp.

The UV-LED lamp is an ultraviolet lamp with a wavelength of 395 nm. The mercury lamp is a multi-wavelength ultraviolet lamp that emits various wavelengths in the ultraviolet (UV) A, B, and C regions.

It is preferable to irradiate a long wavelength because short-wavelength ultraviolet rays involve photodegradation of the dye. Both mercury lamps and UV-LED lamps are examined for long wavelengths, but UV-LED lamps can minimize photodecomposition by having dominant wavelengths in the long-wavelength ultraviolet A region.

The padding solution for dyeing ultraviolet light according to the present invention and the dyeing method using the same can be applied to the dyeing of fibers having a hydroxyl group and an amino group for bonding with reactive dyes. Examples of the specific fibers include cellulosic cotton, Silk, chitosan fiber, nylon, and the like.

INDUSTRIAL APPLICABILITY According to the padding solution for ultraviolet ray-irradiated photographic grafting according to the present invention and the dyeing method using the same, it is possible to dye only a small amount of water at room temperature, thereby reducing energy consumption and not using a neutral salt or an alkali catalyst for reaction And it has the effect of dyeing various fibers without depending on the affinity between the fibers and the dye by the photo-graft polymerization by irradiating ultraviolet rays unlike the adsorption-based dyeing process.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Padding liquid  Manufacturing and Mangle  use

Reactive dye C.I. Reactive Black 5 was fixed at 3.2% based on the weight of the distilled water used as a solvent and Irgacure 2959 as a photoinitiator at a concentration of 7% based on the weight of the dye, and 0.24% of the comonomer Vinyl Sulfonic Acid (VSA) was used as the dye. Triton- 100 was added at 1 g / L and dissolved in distilled water.

After the padding solution was made to have a pH of 10, the cotton fabric (60 g / m 2) was immersed and pressed to a padding ratio of 90% or more using a laboratory roller.

Ultraviolet irradiation treatment

A continuous LED-UV irradiator (Pheosun, 4W) having the maximum emission wavelength at 395 nm was used. The feed rate was 1.5 m / min and the irradiation energy per cycle was 2.5 J / cm 2. One side of the padded cotton fabric was irradiated with ultraviolet rays of 25 J / cm < 2 > (Example 1).

Suesse

The cotton fabric after UV irradiation was dried at room temperature and the cotton fabric grafted to remove unreacted dye, comonomer, photoinitiator and homopolymer was washed with a cleaning liquid containing 2% detergent for 30 minutes at 60 ° C.

K / S and Fixation rate  Measure

Using a colorimeter, the short wavelength surface reflectance was measured at intervals of 10 nm in the visible light wavelength range (400 to 700 nm). The K / S was calculated according to the following formula (Kubelka-Munk equation) as the reflectance at the maximum absorption wavelength in terms of surface adsorption concentration.

K is the absorption coefficient, S is the scattering coefficient, and R is the spectral reflectance.

The weight ratio of the dried fibers to the weight of the dried fibers is referred to as a fixation ratio, and is calculated according to the following formula (2).

W1 is the dry weight of the cotton fabric, and W2 is the dry weight of the fabric that has been washed after UV irradiation.

Example  2

A multi-wavelength ultraviolet irradiator using an oil-electrode-medium pressure mercury lamp (80 W / cm) as a light emitting material was used in the same manner as in Example 1 except that the feed rate was 2.5 m / min and the irradiation energy per cycle was 2.5 J / cm².

Comparative Example  One

CI Reactive Black Cotton fabrics (60 g / m ² ) were added to a salt solution prepared by adding 56% owf, Na ₂ SO ₄ 80 g / L and Na ₂ CO ₃ 5 g / L and dyeing at 25 ° C for 2 minutes using an IR- Lt; / RTI >

Table 1 below shows the K / S and fixation rate for Example 1, Example 2 and Comparative Example 1. < tb > < TABLE >

The K / S and fixing rate of the LED (Example 1) irradiated with ultraviolet ray and the multi-wavelength ultraviolet ray (Example 2) were higher than those using IR-dyeing device (Comparative Example 1) .

Example  3

The staining was carried out in the same manner as in Example 1, except that C.I. Reactive Orange 16 was used.

Example  4

The staining was carried out in the same manner as in Example 2, except that C.I. Reactive Orange 16 was used.

Comparative Example  2

The staining was carried out in the same manner as in Comparative Example 1, except that C.I. Reactive Orange 16 was used.

Table 2 below shows K / S and fixation rate according to general staining (IR staining) and ultraviolet irradiation.

The K / S and fixing rate of the LED (Example 3) irradiated with ultraviolet rays and the multi-wavelength ultraviolet ray (Example 4) were higher than those of IR-dyeing device (Comparative Example 2).

Example  5 - Example  8

(Example 5), 15 J / cm 2 (Example 6), and 25 J / cm 2 (Example 7) were applied to cotton fabrics without using Vinyl sulfonic acid (VSA) under the same conditions as in Example 1, , 30 J / cm 2 (Example 8).

Example  9 - Example  12

(Example 9), 15 J / cm 2 (Example 10), and 25 J / cm 2 (Example 11) were applied to each cotton fabric under the same conditions as in Example 2 except that no vinyl sulfonic acid (VSA) , 30 J / cm 2 (Example 12).

Comparative Example  3

Dyeing was carried out in the same manner as in Example 1 except that the sample was immersed in a padding solution without using Vinyl sulfonic acid (VSA), compressed by a laboratory roller, and then washed with ultraviolet rays.

Table 3 below shows the K / S and the fixation rate depending on the presence or absence of ultraviolet irradiation and the ultraviolet irradiation energy.

Fixation rate and K / S increased with increasing LED dose. If the ultraviolet ray is not irradiated, the K / S and the fixing rate are very low.

Example  13 - Example  16

(Example 13), 3% (Example 14), 5% (Example 15), and 9% (Example 16) relative to the weight of the dye were prepared in the same manner as in Example 7 except that Irgacure 2959, To prepare a padding solution.

Example  17 - Example  20

(Example 17), 3% (Example 18), 5% (Example 19), and 9% (Example 20), respectively, relative to the weight of the dye were prepared in the same manner as in Example 11 except that Irgacure 2959, To prepare a padding solution.

Table 4 below shows K / S and fixation rate according to the content of photoinitiator.

When the LED was irradiated, the photosetting agent was not photodegraded, and the fixation ratio was high when the photoinitiator was 9% (Example 16) relative to the weight of the dye, but it was confirmed that the K / S value was 7% (Example 7). It was confirmed that K / S value and fixing rate were lowered when irradiated with ultraviolet rays of the self-wavelength, rather than 9% (Example 20), and it was the highest at 7% (Example 11).

Comparative Example  4 to Comparative Example  5

Acrylic amide (AAm) and Acrylic acid (AA) were mixed as a comonomer in 0.24% wt / wt based on the weight of dye, and dyed in the same manner as in Example 7 to prepare a padding solution.

Comparative Example  6 - Comparative Example  7

Acrylic amide (AAm) and acrylic acid (AA) were mixed as a comonomer in 0.24% (wt / wt) based on the weight of the dye by dying in the same manner as in Example 11.

Table 5 below shows K / S and fixation rate according to comonomer types.

Example  21 - Example  24

(Example 21), 0.36% wt / wt (Example 22), 0.48% wt / wt (Example 23) relative to the weight of the dye by the same method as Example 7 except that the co- , 0.72% wt / wt (Example 24) to prepare a padding solution.

Example  25 - Example  28

(Example 25), 0.36% wt / wt (Example 26), 0.48% wt / wt (Example 27) relative to the weight of the dye by the same method as Example 11 except that the co- , 0.72% wt / wt (Example 28) to prepare a padding solution.

Table 6 below shows K / S and fixation rate according to comonomer content.

The highest K / S value and fastness were observed at VSA concentration of 0.24% wt / wt both during LED and multi - wavelength ultraviolet irradiation.

Example  29 to 29 Example  32

(Example 29), pH 5 (Example 30), pH 7 (Example 31) and pH 11 (Example 32) by controlling the pH of the padding solution by dying in the same manner as in Example 1 Respectively.

Example  33 - Example 36

(Example 33), pH 5 (Example 34), pH 7 (Example 35) and pH 11 (Example 36) by controlling the pH of the padding solution by dying in the same manner as in Example 2 Respectively.

Table 7 below shows the K / S and fixation rate of the fibers according to the pH.

According to Table 7, C.I. The best conditions for Reactive Black 5 are pH 10. This is because the lower the pH, the lower the water solubility of VSA and the lower the reactivity, so that it is difficult to participate in the photo-graft polymerization of the dye, so that the fixing rate and K / S value are lowered. K / S and fixation rate were the highest at pH 10.

Example  37 to Example  41

(Example 37), 1.6% (Example 38), 4.8% (Example 39), 6.4% (Example 40), and 8.0% of the dye concentration relative to the dye solution in the same manner as in Example 1, (Example 41).

Example  42 - Example  46

(Example 42), 1.6% (Example 43), 4.8% (Example 44), 6.4% (Example 45), and 8.0% of the dye concentration relative to the dye solution in the same manner as in Example 2, (Example 46).

Table 8 below shows K / S and fixing rate according to the dye content.

According to Table 8, the vinyl sulfonic photoreactive dye is not continuously increased as the concentration of the vinyl sulfone-based photoreactive dye increases, but is decreased or decreased at a certain concentration or more. As LED irradiation did not cause photodegradation, the fixation rate and K / S value increased as the dye concentration increased. However, the K / S value and the fixation rate were relatively low due to the photolysis of the multi-wavelength ultraviolet ray.

Table 9 below shows the K / S and fixation rate of the fibers according to the degree of sensibility.

When the monofunctional dye (CI Reactive Orange 16) having one vinyl sulfone group and the bifunctional dye having two vinyl sulfone groups (CI Reactive Black 5) are compared in Table 9 above, it was found that the bifunctional When the dye is irradiated with LED or multi-wavelength ultraviolet rays, both K / S and fixing rate are higher than that of monofunctional dye. It can be seen that the bifunctional dye is more advantageous than the monofunctional dye in photografting.

Table 10 below shows CI. Reactive Orange 16 and C.I. The dyeing fastness of cotton dyed with Reactive Black 5 continuous LED-UV, multi-wavelength ultraviolet and IR-dyeing machines was compared.

According to Table 10, ultraviolet ray-irradiated photograft dyed cotton fabrics showed better fastness to light and fastness to rubbing and washing.

Absorbance change according to lamp type and ultraviolet intensity

When the ultraviolet intensity was increased to 0, 5, and 15 J / cm², the absorbance changes of the UV-LED lamp and the mercury lamp were confirmed.

FIG. 3 is a graph showing the change in absorbance of the UV-LED lamp according to the present invention, and FIG. 3 (b) is a change in absorbance of a mercury lamp.

UV-LED lamps showed no change in absorbance due to only copolymerization without photodegradation with increasing UV dose.

On the other hand, mercury lamps exhibit photodecomposition and copolymerization at the same time as absorbed ultraviolet radiation, resulting in decreased absorbance. Especially, the C-S bond of the dye appears to be decomposed with increasing ultraviolet radiation dose.

Both UV-LED lamps and mercury lamps were found to produce copolymerization, but UV-LED lamps were found to be able to minimize photodegradation by having a dominant wavelength in the long-wavelength ultraviolet A region.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken as limiting the scope of the present invention. The present invention can be variously modified or modified. The scope of the invention should, therefore, be construed in light of the claims set forth to cover many of such variations.

Claims (12)

In a padding solution for ultraviolet light irradiation optical grafting,
The padding solution
A reactive dye to be covalently bonded to the fiber;
A photoinitiator excited by ultraviolet light to initiate photo-graft polymerization of the reactive dye;
A solvent; Characterized by comprising
Padding solution for ultraviolet irradiation light graft dyeing.
The method according to claim 1,
The reactive dye
Characterized by having a Vinyl Sulfone photoreactor,
0.53 to 8.0% by weight based on the solvent.
Padding solution for ultraviolet irradiation light graft dyeing.
The method according to claim 1,
The photoinitiator
Characterized in that it is an acetophenone system,
And 3 to 9% by weight of the reactive dye is added thereto.
Padding solution for ultraviolet irradiation light graft dyeing.
The method according to claim 1,
The padding solution
Characterized in that it further comprises a comonomer for improving the dyeability of the reactive dye,
The comonomer is characterized by being vinylsulfonic acid,
And 0.12 to 0.72% by weight relative to the reactive dye.
Padding solution for ultraviolet irradiation light graft dyeing.
The method according to claim 1,
The padding solution
characterized by having a pH of 9 to 11
Padding solution for ultraviolet irradiation light graft dyeing.
In a dyeing method using a padding solution for ultraviolet light irradiation optical grafting,
A padding liquid producing step (S100) for producing a padding liquid;
(S200) irradiating the padding solution with ultraviolet light to irradiate ultraviolet light onto the fiber after impregnating the fibers with ultraviolet light.
Dyeing method using padding solution for ultraviolet light photogravure staining.
The method according to claim 6,
The padding liquid manufacturing step (S100)
A solvent; A reactive dye added in an amount of 0.53 to 8.0% by weight based on the solvent; Wherein the photoinitiator is added in an amount of 3 to 9% by weight based on the weight of the reactive dye, and the padding solution is prepared to have a pH of 9 to 11
Dyeing method using padding solution for ultraviolet light photogravure staining.
8. The method of claim 7,
The reactive dye
Characterized by having a Vinyl Sulfone photoreactor
Dyeing method using padding solution for ultraviolet light photogravure staining.
8. The method of claim 7,
The photoinitiator
Characterized in that it is an acetophenone-based
Dyeing method using padding solution for ultraviolet light photogravure staining.
8. The method of claim 7,
The padding liquid manufacturing step (S100)
And a vinyl sulfonic acid comonomer to be added in an amount of 0.12 to 0.72% by weight relative to the reactive dye is further mixed.
Dyeing method using padding solution for ultraviolet light photogravure staining.
The method according to claim 6,
The ultraviolet ray irradiation step (S200)
And is carried out under an irradiation energy of 5 to 30 J / cm 2 per unit area
Dyeing method using padding solution for ultraviolet light photogravure staining.
The method according to claim 6,
The ultraviolet ray irradiation step (S200)
Characterized in that a mercury lamp or a UV-LED lamp is used
Dyeing method using padding solution for ultraviolet light photogravure staining.

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