KR20140083083A - A Textile printing and colored burnout method of mixed knit using a dye - Google Patents

Abstract

The embodiment relates to a color burn-out method of a blend knitted fabric using a dye and a blend knitted fabric produced by the method.
The color burn-out method of the blended knitted fabric using the dye according to the embodiment includes the steps of mixing the colored burn-out preparation; Performing roller printing on a predetermined blend knitted fabric using the blended coloring composition; Pre-drying the roll-printed mixed knitted fabric; Subjecting the preliminarily dried knitted fabric to a far infrared ray heat treatment; And washing the far infrared ray-treated heat treated mixed knitted fabric with water.

Description

[0001] Description [0002] The present invention relates to a knitted fabric for knitted fabrics,

The embodiment relates to a spinning method of a knitted fabric using a dye, a coloring burnout method and a knitted fabric produced by the method.

According to the prior art, screen printing, roller printing, rotary printing, digital printing, and the like can be used to form a collar pattern on a knitted fabric.

However, such a printing method has a limitation in overcoming the monotony of the fabric because the pattern is flat, so that a burn-out processing method which treats the chemicals on the surface of the fabric to show a three-dimensional pattern effect is a method for complementing the printing process Developed.

On the other hand, a general burnout processing method is a method in which a mixed yarn of chemical fibers having different properties is chemically reacted to cause a single fiber to be broken and leached to form a partially transparent pattern to express a three-dimensional design, It is a special processing method that gives a silk effect.

The burnout process can be classified into acid burnout and alkali burnout. In particular, in the case of polyester fiber, since it is a stable material in acid, it is most used as a skeleton material in acid burnout processing. , Rayon, tencel, and the like are used.

On the other hand, the burnout processing method for such a cellulose / polyester blend product has a disadvantage of being monotonous because it only forms a pattern of a certain type, thereby eliminating color.

Thus, a color burnout processing method has been proposed in which disperse dyes are added to a chemical for burnout to color polyester fibers simultaneously with burn-out.

However, the newly developed color burnout products are limited to the use of pile fabrics mainly used for bedding, and they are not applicable to knitted products for clothes.

The knitted product has a large shape change due to the tensile force during the dyeing process, and the heat treatment for knitting, processing using rollers, and heat fixation requires a lot of techniques.

Particularly, it is difficult to commercialize the product because it is difficult to fit the pint to the knit product when the burnout process using the printing process and the additional printing process for coloring the burned out portion are applied to the knit product.

A typical burn-out process for cotton knitted fabric products is as follows.

In general, the burn-out technology of cotton blend products is done in the order of "Knitting-> Pretreatment / Dye-> Burnout (Printing, Heat Treatment, Washing / Dewatering )-> Post Processing (Tenter and Washing)" as follows.

In the general burnout, dyeing or pretreatment (cotton bleaching) is performed on the cotton or polyester part in the dyeing factory, and the product is finished by burning out the surface part in the printing factory in two steps and finishing the product. Therefore, tone-on-tone printing is mainly used in which the bottom surface of the fabric and the burned-out portion have the same color.

In the post-burnout process of burn-out of the cotton blend knit, the softener is processed and widened mainly by using a tenter, and then spraying or tumble processing is performed to fix the shrinkage ratio.

FIG. 1 is a view showing a case where a polyester material of a cotton blend knit is dyed and a general burn out is shown in the prior art.

First, as shown in FIG. 1 (a) and FIG. 1 (b), a polyester dyeing process (black dyeing process) is carried out. The cotton material is not dyed but only the polyester material is dyed, .

Thereafter, a cotton material burnout (printing factory) process is performed as shown in FIG. 1 (c). The cotton material is burned out and the black dyed polyester material is exposed to the surface to give a black side burnout effect.

Thereafter, tentering and washing (post-processing) are carried out. This is to fix the width of the cotton blend knit product, to give soft touch and to maintain the shrinkage ratio.

Fig. 2 is an example of a general burnout after dyeing a cotton material of a cotton blend knit.

First, as shown in Figs. 2 (a) and 2 (b), a surface dyeing process (Black) is carried out. The polyester material is not dyed, only the cotton is dyed, and the overall color is gray.

Thereafter, a cotton material burnout (printing factory) process is performed as shown in FIG. 2 (c).

The cotton material is burned out and the unbonded polyester material is exposed to the surface to produce a white-side burnout effect.

Thereafter, a tentering and washing (post-processing) process is carried out. This is to fix the width of the cotton blend knit product, impart soft touch and maintain the shrinkage ratio.

Thus, one of the greatest disadvantages of the prior art burnout products is that it is necessary to obtain a tone-on-tone product such as a dyed color or to obtain a color & white product composed of a dyed color and a white color There are disadvantages.

In addition, dyeing and burnout are carried out in two different stages at different factories, resulting in a rise in unit price and a delay in delivery due to an increase in processing time. In particular, the domestic market, such as the large wholesale market, is currently experiencing difficulty in order receipt in response to demand for quick delivery.

On the other hand, according to the prior art, a printing and color burn-out technique using a pigment is disclosed. For example, a Korean patent (10-0925019) discloses a printing and color burn-out technique using pigments, which firstly prints the surface with a pigment, and uses an open and regular moist heat system. On the other hand, pigment printing has a disadvantage that the fastness to rubbing is poor, and the wet heat system has a disadvantage in that it has a higher energy cost and a longer processing time than the dry method.

The examples provide a 1-step dry base / tinted burnout product of cotton blend woven fabrics using reactive / disperse dyes.

In addition, according to the embodiment, it is possible to stain a bottom color using reactive dyes, and at the same time, to provide a brilliant effect using a 1-step flame-retardant / color burn-out technique capable of unifying the coloring of polyester fibers remaining in the burnout and burnout areas of cellulose- Coloring burnout products for clothing that pursue color and aesthetic sensibility.

The dyeing / coloring burnout method of the blend knitted fabric using the dye according to the embodiment includes the steps of mixing the dyeing composition and the coloring composition; Printing on a predetermined blend knitted fabric using the blended flour and a coloring aid; Pre-drying the printed knitted fabric; Subjecting the preliminarily dried knitted fabric to a far infrared ray heat treatment; And washing the far infrared ray-treated heat treated mixed knitted fabric with water.

The examples can provide a 1-step dry base / pigmented burnout product of cotton blend knitted fabrics using reactive / disperse dyes. If the colored burn-out technique according to the embodiment is applied to a cotton blend product, it is possible to reduce the first stage of dyeing process by simultaneously working dyeing (or main dyeing) and coloring burn-out, .

In addition, according to the embodiment, the 1-step flame-retarding / color burn-out technique which can unite the bottom color of the cellulose material using the reactive dye and the coloring of the polyester fiber remaining in the cellulose fiber burn- It is possible to provide a colored burn-out product for a garment that seeks a brilliant color and aesthetic sensation using. There is a limitation that the burn-out according to the related art can only express tone-on-tone or 1-color & white. However, according to the embodiment, Dyeing is added to the bottom surface of the fabric and the burnout area, so you can express colorful colors with burnout effects as before.

Fig. 3 is an illustration of a coloring and burn-out method of a blended knitted fabric using a dye according to an embodiment.

In case of 1-step dry flocking / color burn-out as shown in Figs. 3 (a) and 3 (b) for cotton blend knitted fabrics using reactive / disperse dyes according to the embodiment, Colored burnout (printing factory) is in progress.

According to the embodiment, the reactive dye is used to impart the pattern roll to the pattern roll or the whole surface printing process. The pigmented burnout chemicals (disintegration) and the polyester material remaining in the burned-out area proceed with the use of a colored burn-out chemical mixed with a disperse dye in the burn-out chemical. At this time, a design roll-like burnout effect occurs and the burnout area is stained.

Thereafter, tentering and washing (post-processing factory) are carried out. This is to fix the width of the cotton blend knit product, to give soft touch and to maintain the shrinkage ratio.

As shown in the above process, in the conventional process, the dyeing process of the cotton material performed in the dyeing factory is performed simultaneously with the coloring burnout in the embodiment, thereby shortening the dyeing process and providing cost saving type / color burnout product As raw material prices such as cotton yarn and polyester yarn are steadily rising recently, the reduction in the unit price will contribute to the revitalization of the market.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a case where a polyester material of a cotton blend knit is dyed and then a general burn out is performed in the prior art; FIG.
Fig. 2 is an example of a general burnout after dyeing a cotton material of a cotton blend knit.
Fig. 3 is an example of a coloring and burn-out method of a blended knitted fabric using a dye according to an embodiment; Fig.
FIG. 3 is a view illustrating a process of burnishing and coloring burn-out printing and a preliminary drying process in a 1-step coloring / coloring burn-out method of a blend knitted fabric using a dye according to an embodiment. FIG.
FIG. 4 is a view illustrating a far-infrared ray gun heat treatment step among the present bleaching / coloring burn-out method of a blend knitted fabric using a dye according to an embodiment. FIG.
Fig. 5 is a view showing an example of a 1-step process of the dyeing / coloring burnout method of the blended knitted fabric using the dye according to the embodiment. Fig.
Fig. 6 is a diagram showing an example of a process of a 2-Step method of coloring and burning after the present invention. Fig.
Fig. 7 is an example of a product that can be provided by the 1-Step method of the present dye / color burn-out method using a dye.
8 is a photograph showing an example of the application of the dyeing and coloring burn-out method of the blended knitted fabric using the dye according to the embodiment.

Hereinafter, a method of coloring and burning a blended knitted fabric using a dye according to an embodiment of the present invention and a blended knitted fabric manufactured by the method will be described in detail with reference to the accompanying drawings.

The thickness and size of each layer in the drawings are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Also, the size of each component does not entirely reflect the actual size.

(Example)

4 is a diagram illustrating a color burn-out process, a printing process, and a preliminary drying process in the color burn-out method of the mixed knitted fabric using the dye according to the first embodiment.

5 is a view illustrating a far infrared ray gun heat treatment process among the coloring and burnout methods of the blended knitted fabric using the dye according to the first embodiment.

Hereinafter, a color burn-out method of the blended knitted fabric using the dye according to the first embodiment will be described with reference to FIGS. 4 and 5. FIG. The coloring and burnout method of the blended knitted fabric using the dye according to the first embodiment may include a coloring burnout formulation blending step, a printing step, a preliminary drying step, a far infrared ray heat treatment step, a water washing step and a post-processing step.

In embodiments, disperse dyes for coloring polyester during burnout may be added to the burnout (sulfuric acid or sulphate series) chemicals to render the cotton material burnout and polyester coloring.

First, the colored burnout formulation blending process in the cotton blend knit colored burnout method according to the first embodiment is as follows.

Prepare 5 ~ 20wt% of Gum and water (remaining part).

The coloring preparation step may then be carried out in such a manner that the coloring agent preparation step comprises the steps of preparing 10 to 30 wt% of the white backing, 40 to 60 wt% of burning agent, 0.01 to 3 wt% of sulfuric acid, 0.01 to 5 wt% of disperse dye, 0.01 to 3 wt% of a thickening agent, 0.01 to 5 wt% of glycerin, The coloring burnout coloring agent containing the coloring burnout coloring agent can be prepared as a coloring agent for tamarind sword series. It is well soluble in cold water and hot water, and is excellent in color development, homogeneity, desolvation, compatibility with general printing auxiliaries, and stability of liquor.

The chewing gum may be prepared from a pre-manufactured backhoe, and the burn-out chemical may be sulfuric acid, sulfate or other organic acid. For example, the burn-out medicines may include sulfates such as sodium hydrogen sulfide and aluminum sulfate as drugs that burn out (decompose) cellulose-based fiber materials such as cotton, rayon, and the like. The composition of the burnout medicine used in the coloring burn-out color may include, but is not limited to, 0.01 to 10% of gum guar, 15 to 30% of sodium hydrogen sulfide, 0.01 to 10% of alkyl ether, Do not.

The thickener is a drug that controls the required viscosity of the colored burnout formulation in addition to the above-mentioned paste.

  The glycerin can prevent the pattern design failure at the time of burnout and can increase the sharpness of the burnout line.

Next, the printing process proceeds. In the embodiment, a roll-type printer having four or less design copper plates can be used. Double corrosion or gradation may be provided.

Next, the preliminary drying process is carried out. The preliminary drying step may be carried out at about 60 ° C to about 110 ° C for about 1 to 5 minutes. The preliminary drying step removes the remaining water and water. If the temperature of the preliminary drying step is lower than 60 ° C, the coloring compound liquid remains on the drying cylinder, and then conduction transition occurs in the color, and if it is higher than 110 ° C, yellowing or other defects may occur.

For example, referring to FIG. 4, in the preliminary drying apparatus 100 according to the embodiment, the fabric F is conveyed through a first feeder (fabric feeder) 110 to an expander 120, a dust collector the toner is preliminarily dried through a dryer drum 170 after a color burnout using a roller bowl 150 and a pressure bowl and a design roll 140 through a collector 130, The pre-dried fabric may be wound onto a first fabric takeer 190. In FIG. 4, the shape of the feeding part 110 and the winding part 190 of the far end is shown as a roller type, but is not limited thereto.

The design roll 140 may include a third design roll 143 and the coloring and burn-out process may be performed on the fabric F at the third design roll 143. However, the present invention is not limited thereto. In the embodiment, a roller printer 150 and a design roll 140 for roller printing may be used for coloring burnout, but the present invention is not limited thereto, and rotary printers and screen printers are also possible.

After the color burn-out, preliminary drying can proceed while passing through a dryer drum 170. The drying drum 170 may include a first drying drum 171 and a second drying drum 172, but is not limited thereto.

FIG. 5 is a diagram illustrating the far infrared ray gun heat treatment process among the coloring and burnout methods of the blended knitted fabric using the dye according to the embodiment.

The dry heat treatment process will be described with reference to Fig. The heat treatment can be carried out at about 160 ° C to 200 ° C for about 1 to 5 minutes, and the bond between the dye and the fiber can be induced by dry heat treatment.

If the drying temperature is lower than 160 ° C, poor color fastness and poor color fastness due to poor adhesion may occur. If higher than 200 ° C, yellowing, pyrolysis or melting may occur.

Generally, according to the prior art, when printing cotton or polyester fibers, a steaming process using high-pressure steam is mainly used as a heat treatment method.

However, in the dry heat treatment process according to the embodiment, it is possible to use a dry-heat process method using a far infrared ray heat treatment process in which the heat treatment time is short and the operation cost is low.

Accordingly, according to the embodiment, the color burn-out technique that simultaneously burns and stains can be achieved by heat-fixing at a high temperature for a short time through a far-infrared heat treatment apparatus.

For example, in the heat treatment step using the far infrared ray heater employed in the embodiment, the heat transfer, which is not a heating method using an intermediate medium such as conduction or convection, is performed by radiant heating of far infrared rays having direct and instantaneous direct- , Maximization of movement of each molecule of the fabric, that is, translation, rotation, and vibration, and as a result, efficient heat treatment is possible by rearrangement of mutual molecular arrangement.

On the other hand, the embodiment can impart a humidifying effect to heat treatment by including urea in the medicine.

The heat of the dry heat processor employed in the embodiment is far infrared rays having a wavelength of about 25 mu m or more and has strong resonance and resonance action with respect to organic compound molecules and has good penetration ability and has effects of deodorization, sterilization, prevention of fungus growth, dehumidification Far infrared ray heaters can heat treat the front and back surfaces of the fabric quickly and uniformly compared with general steam heating, hot air dryer, tenter and so on.

The dry heat treatment method employed in the embodiment is a technique that is superior to the steam heat treatment because of the advantages such as energy cost reduction, product price reduction, and quick delivery time because it is a method of using stability and operational convenience and infrared rays.

5, in the embodiment, the heat treatment apparatus 200 includes a rectangular housing 245 and a housing (not shown) which are long in the conveying direction of the fabric F in order to prevent the internal heat from being discharged to the outside, A conveyance belt 220 driven by a conveyance roller 225 and conveying rollers 225 installed at the front and rear ends of the housing and conveying belts 220 supported on the conveyance belt 220, And a far infrared ray heater 230 for irradiating a far infrared ray to the fabric F which is made up of the far infrared rays.

A circulation fan 248 is installed on the far infrared ray heater 230 and can be driven by a fan motor 249. Further, a discharge duct 240 is formed on the upper portion of the housing 245, so that the dried air can be discharged to the outside.

According to the embodiment, when the second feeding roller 210 is rotated in a state in which the color is burned-out and the preliminarily heated fabric F is wound on the second feeding roller 210, the fabric F is discharged, And is wound around a second take-up roller 250 provided separately from the feed roller 210.

The fabric F discharged from the second supply roller 210 is subjected to dry heat treatment while passing through the far infrared ray heater 230 and wound around the second take-up roller 250. Although the second feed roller 210 and the second take-up roller 250 are shown as roller type, the present invention is not limited thereto, and a folding type laminated structure is also possible.

In the embodiment, the heat treatment apparatus 200 may employ a far infrared ray heater 230 and may include a net-type heat treatment apparatus, but the present invention is not limited thereto.

Next, the water washing and dehydration process is carried out. The washing process can be carried out at about 40 to 90 DEG C for about 10 to 40 minutes. According to the embodiment, it is possible to set an appropriate level of brushing condition so that the fiber residue in the burned-out portion is removed.

The medicines to be used in the wash process may be water wash medicines corresponding to the fibers used. For example, a scouring agent, a soaping agent, a soda ash can be used as a flushing agent when coloring out of cotton fiber dyes, and caustic soda and a reducing agent can be used as a flushing agent for coloring burn-out printing of polyester dyes.

Next, a tenter and a spraying process may be performed in the post-processing step. Tentering can be done to remove the cotton fiber residue caused by burnout, finish the processing width and soften agent treatment, and the washing process can be performed to fix the shrinkage rate of the cotton blend knit product and once again remove the cotton fiber residue.

The examples can provide a 1-Step dry colored donut product of cotton blend knitted fabrics using disperse dyes. If the color burn-out technique according to the embodiment is applied to a cotton blend product, it is possible to reduce the first dye-making process by simultaneously working with burn-out and coloring, thereby reducing delivery time and cost.

In addition, according to the embodiment, it is possible to provide a color burn-out product for a garment which can unite coloring of a burnout area at the same time as a cellulose-based fiber burnout and pursue a brilliant color and aesthetic sensibility using a 1-Step color burn- have.

However, according to the embodiment of the present invention, when the color burn-out technique is applied, the burn-out of the conventional burn-out portion has a drawback in that only the tone-on-tone or the 1-color & It is possible to express colorful colors while having a burnout effect as in the conventional art.

In addition, according to the embodiment, it is possible to provide a shortened process and a cost saving colored burnout product. Recently, as prices of major raw materials such as cotton yarn and polyester are continuously rising, the reduction in the unit price will contribute to the revitalization of the market.

The technique of the embodiment is a color burn-out technique that uses face-out chemicals to make face burn-outs and at the same time colors the remaining polyester in burn-out areas. The main target item is knit, knit with a large elasticity, so it is an ingenious technology that can not be divided into two stages because 2-step work can not fit a pint.

Whether the result of the coloring burn-out is 1-step or 2-step can be done through visual inspection.

FIG. 6 is a view illustrating a process of a color burn-out method of a blend knitted fabric using a dye according to an embodiment, and FIG. 7 is a view illustrating a process of a color burn-out method according to the related art.

The coloring burnout by the printing method uses the same design roll and can proceed to C1 (141) in the above figure.

The design is shown as a circle. When coloring / burning out, ① C1 is circular, and burnout occurs at the unit level. ② C2 is finally printed on C1, producing a coloring effect.

The 1-Step coloring burn-out according to the embodiment is connected to a uniform cogwheel in the same roller printer and turns around the pressure bowl 150, resulting in color burn-out. Therefore, even in the printing result, You get a fit.

On the other hand, the 2-Step coloring burnout according to the related art is printed using the roller printer 150 and the first design roll 141 for the first time, and the second design roll 142 for the second time, Especially in stretch materials such as knit fabrics, pint fitting to match primary burnout and secondary coloration is virtually impossible.

As a result, in the 2-Step coloring burnout process according to the related art, coloring and burnout can not be aligned because the burnout region and the coloring can not be unified. In the 1-step process, burnout chemicals and dyes And the design copper plates of the roller printer regularly circulate around the roller bowl, and coloring burn-out proceeds to show a regular fit. It is possible to provide a colored burn-out product for clothes that pursues a brilliant color and aesthetic sensibility using a 1-Step color burn-out technique.

FIG. 8 is an illustration of a product that can be provided by the 1-Step method of coloring-out using a dye.

According to the embodiment, it is possible to unite the polyester material of the burn-out and burn-out region of the cellulosic fiber simultaneously with the bottom-color dyeing using the reactive dye, and to unify the color using the disperse dye. And a clothing / color burnout product for clothing that pursues aesthetic sensibility.

In addition, according to the embodiment, it is possible to provide a process shortening and a cost saving colored burnout product

The features, structures, effects and the like described in the embodiments are included in at least one embodiment and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects and the like illustrated in the embodiments can be combined and modified by other persons skilled in the art to which the embodiments belong. Accordingly, the contents of such combinations and modifications should be construed as being included in the scope of the embodiments.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that various variations and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

Claims (11)

Coloring burnout formulation;
Performing color burn-out printing on a predetermined blend knitted fabric using the blended coloring composition;
Pre-drying the printed knitted fabric;
Subjecting the preliminarily dried knitted fabric to a far infrared ray heat treatment; And
And washing the far infrared ray-treated mixed knitted fabric with water. The method according to claim 1,
In the printing process,
Wherein the coloring burn-out proceeds in the blend knitted fabric. The method according to claim 1,
The colored burnout formulation blending process
A backing preparation step comprising 5 to 20 wt% of water (Gum) and water;
And a coloring burnout color preparation step comprising 20 to 50 wt% of the white back, 40 to 60 wt% of burn out chemicals, 0.01 to 5 wt% of a disperse dye, 0.01 to 3 wt% of a thickener, 0.01 to 5 wt% of glycerin and water The coloring burnout method of the blended knitted fabric using the dye. The method of claim 3,
The burn-out chemical is an organic acid chemical that burns out the cellulose fiber material. Sulfuric acid sodium sulfate and aluminum sulfate sulfate are used.
Characterized in that the dye added to the burn-out chemical for coloring burn-out is a disperse dye for coloring the polyester fiber material. The method according to claim 1,
The printing step
A color burning-out method of a blended knitted fabric using a dye, characterized by using a roller printer or a rotary printer equipped with a design copper plate. The method according to claim 1,
The preliminary drying step
Wherein the dyeing is carried out at a temperature of 60 ° C to 110 ° C for 1 minute to 5 minutes. The method according to claim 1,
The dry heat treatment step
Wherein the dyeing is carried out at a temperature of 160 to 200 DEG C for 1 to 5 minutes. 8. The method according to any one of claims 1 to 7,
The dry heat treatment step
Characterized in that a dry-heat process is used. 9. The method of claim 8,
In the dry-heat process step
And a far-infrared ray heat treatment machine is used. 9. The method of claim 8,
In the washing step
Characterized in that a flushing agent, a soaping agent and a soda ash are used in the case of coloring and burning out of cotton fiber dyed with water washing chemicals, caustic soda and a reduction washing agent are used in case of coloring out of polyester dyes. 9. The method of claim 8,
The blend fabric
Characterized in that it comprises knit (circular) products.

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