KR20170051919A - Cotton and digital textile printing method for printing a fluorescent paint - Google Patents

Abstract

The fluorescent dye printing method of a fabric according to the present invention is designed to include a fluorescent color portion and a general color portion of an image to be output on a cloth by using a computer, And the fluorescent dye and the general color dye are simultaneously output to the transfer paper by the printer for transfer printing while the ink is maintained at a temperature of between -20 ° C and 25 ° C and a humidity of between 40% and 60% to print the designed image, And the printing surface of the fabric is transferred to a transfer press maintained at a temperature between 160 ° C and 220 ° C in a state where the transfer surface of the transfer material is transferred to the fabric, The fabric is cooled, dried, and then wound on a winding machine. Through this process, the sublimation transfer of the fluorescent dye is carried out. When Jean exception of water or wash cloth will have to solve the problem of otitis.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent dye printing method,

The present invention relates to a method of printing a fluorescent dye of a fabric, and more particularly, to a method of printing a fluorescent dye on a fabric by performing a sublimation transfer simultaneously with color dyes, The present invention also relates to a method for printing a fluorescent dye of a fabric according to a new method for minimizing the water drop-off and the dyeing during washing.

In general, various methods of printing various patterns on clothes include a direct injection method and a digital textile printing (DTP) method.

Here, the direct injection method is a method in which a dye is directly sprayed on a pretreated fabric, followed by post-treatment (steam and water washing) to be dyed on the fabric. In the sublimation transfer method, a sublimable disperse dye is used, After the printing, the transfer paper is thermally transferred to the polyester fiber.

In recent years, the direct injection method has been preferred to the sublimation transfer method because of the disadvantage that it can be attached only to the pretreated fabric and the color reproducibility is poor.

That is, the sublimation transfer can be dyeed or dyed by transcribing material (clothes) while being vaporized without passing through a liquid process at a high temperature by using a special color transfer ink, so that pretreatment is not necessary and the fastness of coloring and color reproduction It is preferred due to its advantage of being able to produce small quantities.

Regarding such a sublimation transfer method, various methods such as the registered patent 10-0685292, the patent publication 2003-0047614, the registered patent 10-0540727 and the registered patent 10-1374117 are presented.

However, in the case of the conventional sublimation transfer method described above, only the method of transferring the dye into a general color dye is used, and a fluorescent dye other than the dye of the conventional color is not used.

Of course, conventional techniques such as the registered patent 10-1515322, the registered patent publication No. 10-0139385, the patent publication 10-2001-0107342 and the like have a transfer technique using a fluorescent dye, Is not dissolved in water and is used in an organic solvent. Therefore, when the process is performed in the same process as a general transfer process, the fluorescent dye has a higher viscosity than other common color dyes, The fluorescent dye is transferred to the fabric and the color reproducibility is very low or the dyeing is not performed smoothly. Therefore, the printing of the fluorescent dye is practically performed by the direct injection method .

Thus, conventionally, a method of making a product by dyeing a fabric using a dyeing fuel of a fluorescent color is applied, which has a problem that water dropping and a dyeing problem at the time of washing are inevitably serious.

Patent No. 10-0685292 Published Patent Publication No. 2003-0047614 Registration No. 10-0540727 Patent No. 10-1374117 Patent No. 10-1515322 Patent Registration No. 10-0139385 Japanese Patent Application Laid-Open No. 10-2001-0107342

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of printing a fluorescent dye on a fabric, The present invention also provides a method for fabricating a fluorescent dye of a fabric according to a new method for minimizing dye migration and washing during washing, and to provide a fabric using the same.

According to another aspect of the present invention, there is provided a method for printing a fluorescent dye of a fabric, comprising the steps of: designing a fluorescent color portion and a general color portion of an image to be output on a fabric by using a computer; A fluorescent dye and a general color dye were simultaneously outputted to the transfer paper with the transfer printer in a state where the space for installing the printer for outputting images was maintained at a temperature between 15 ° C and 25 ° C and a humidity between 40 and 60% A printing step of printing the designed image; The non-woven fabric is further passed through a transfer press machine maintained at a temperature of 160 ° C to 220 ° C in a state where the non-woven fabric is further abutted on the non-printed surface of the fabric, And transferring the printed image onto the fabric; A drying step of cooling and drying the transferred fabric of the image; And a winding step of winding the dried fabric on a winding machine.

Here, the fabric may be any one of a fabric made of 100% polyester fabric, a fabric blended with a polyester and a polyurethane, a fabric blended with a polyester and a cotton blend, a fabric blended with a polyester, a cotton blend and a polyurethane blend, .

In addition, the transfer sheet, the cloth and the nonwoven fabric, which are mutually opposed to each other in the sublimation transfer step, are passed through the transfer press at a speed of 1.9 m / min to 2.3 m / min.

In addition, the transfer sheet, the cloth and the nonwoven fabric, which are mutually opposed to each other in the sublimation transfer step, are passed through the transfer press while applying a pressure of 2 bar to 5 bar.

In order to accomplish the above object, a fabric according to the present invention includes a graphic designing step of designing a fluorescent color portion and a general color portion of an image to be output to a fabric by using a computer, The fluorescent dye and the general color dye are simultaneously outputted to the transfer paper by the printer for use in the state where the space for installing the printer is maintained between 15 ° C and 25 ° C and the humidity between 40 and 60% And a transfer step of transferring the image printed on the transfer sheet to the fabric by passing the image printing surface of the transfer sheet and the print target surface of the transfer sheet in a state of being opposed to each other at a temperature between 160 ° C. and 220 ° C., A drying step of cooling and drying the transferring finished image of the image, a drying step of cooling the dried fabric To proceed to the winding step of winding on is characterized in that is manufactured.

As described above, the method of printing a fluorescent dye of a fabric according to the present invention and the fabric produced by using the same according to the present invention can be applied not only to a low saturation phenomenon and a water drop phenomenon caused when a fluorescent dye is printed by a conventional sublimation transfer method, And thus it is possible to obtain a fabric having a high quality fluorescent dye printed thereon.

In particular, the method for printing a fluorescent dye of a fabric according to the present invention and the fabric produced by using the fabric according to the present invention are characterized in that, in a printing step of outputting an image to a transfer paper, the printer used for printing has a temperature of between 15 ° C and 25 ° C and a humidity of between 40% The printing operation is performed in a state in which the ink is held in the space where the ink is kept. This prevents flickering and nozzle clogging that occur when the fluorescent dye is output.

In addition, the method of fabricating a fluorescent dye of the present invention and the fabric produced therefrom are characterized by a temperature condition between 160 ° C and 220 ° C, a conveying speed condition between 1.9m / min and 2.3m / min, The sublimation transferring step is carried out under the pressure condition so that the transfer of the fluorescent dye can be performed smoothly and stably. Further, in the state where the transferring is completed, the problems such as water dropping and dyeing upon washing can be prevented.

In addition, the method of printing a fluorescent dye of a fabric according to the present invention and the fabric produced by using the same can be performed more smoothly and accurately by transferring not only the transfer paper and the fabric but also the nonwoven fabric from the back side to the high temperature and high pressure, Effect.

Also, since the method for printing a fluorescent dye of a fabric according to the present invention and the fabricated fabric using the fabric can be automatically controlled so that the speed for unwinding and winding the fabric is always constant, So that an accurate sublimation transfer can be achieved.

In addition, the method for printing a fluorescent dye of a fabric according to the present invention and the fabric produced by using the fabric according to the present invention can be rapidly cooled at a room temperature by blowing direct cooling wind on the fabric to be transferred, thereby improving the fastness of images transferred to the fabric It has the effect of becoming possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram schematically illustrating a fluorescent dye printing apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram schematically illustrating a fluorescent dye printing apparatus according to another embodiment of the present invention.
3 is a schematic view for explaining a state in which a transfer sheet, a raw fabric and a nonwoven fabric are passed between a heating roller and a pressure roller in a fluorescent dye printing apparatus of a fabric according to an embodiment of the present invention.
4 is a flowchart schematically showing a fluorescent dye printing process of a fabric according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of a method for printing a fluorescent dye of a fabric according to the present invention will be described with reference to FIGS. 1 to 4 attached hereto.

1, a fluorescent dye printing apparatus according to an embodiment of the present invention includes a computer 100 for transfer, a transfer printer 200, A press machine 300, a winder 400 and a blowing fan 500. [

Here, the transfer computer 100 is provided with a graphic program and an image transfer program, and is configured to design an image composed of various colors and fluorescence through the graphic program. In addition, To be printed by the transfer printer 200. [0031]

The transfer printer 200 is a device adapted to print an image designed on the transfer computer 100 on the transfer sheet 10. Particularly, the transfer printer 200 has a function of maintaining a predetermined temperature and humidity So that not only the color dye but also the fluorescent dye can be output at the same time. That is, conventionally, color dyes and fluorescent dyes are separately output without outputting the color dyes and fluorescent dyes separately due to the characteristics of the fluorescent dyes. However, in the present invention, the conditions of the printing space are improved to enable the simultaneous output of the color dyes and the fluorescent dyes.

The transfer press machine 300 is a dedicated press machine for transferring a transfer sheet on which an image is printed in the transfer printer 200 to a fabric by digital textile printing (DTP).

Particularly, the transfer press machine 300 includes a heating roller 310 and a pressure roller 320, a roller for supplying a fabric 330, a roller for supplying a transfer paper 340 and a transfer paper branch roller 350, A supplying roller 360 and a nonwoven fabric gathering roller 370.

The heating roller 310 is a roller heated to a set temperature and the pressure roller 320 rotates the raw material 20 passing between the heating roller 310 and the transfer sheet 10 and the nonwoven fabric 30, Is pressed against the heating roller 310 at a constant pressure. In particular, the pressure roller 320 is configured to be capable of adjusting its conveying speed and pressing force with the heating roller 310.

In addition, the fabric supplying roller 330 is a roller for providing the fabric 20 between the heating roller 310 and the pressing roller 320 in a state that the fabric 20 to be printed is wound, The transfer sheet providing roller 340 is a roller for providing the transfer sheet 10 between the heating roller 310 and the pressure roller 320 in a state in which the transfer sheet 10 on which the image is printed is wound, The roller 350 is a roller for recovering the transfer sheet on which image transfer is completed.

Particularly, in the case of the rollers for supplying the fabric 330, it is preferable that the rollers can be automatically adjusted in the unwinding speed. For this purpose, the movement of the fabric 20, which is unwound from the rollers 330, A release sensor 331 for sensing the feed speed of the fabric 20 is further provided.

The nonwoven fabric supplying roller 360 is a roller for providing a nonwoven fabric 30 which is further adhered to the non-printing surface of the fabric 20 on which no image is printed, and the non- ) Is a roller for recovering the used nonwoven fabric.

At this time, the nonwoven fabric 30 prevents the phenomenon that the raw material is pushed in the process of passing between the heating roller 310 and the pressure roller 320, but also the vapor (steam) generated by the sublimation transfer from the raw material 10 So that it can be discharged more quickly, thereby performing a more accurate transfer to fluorescent dyes as well as color dyes.

Of course, the nonwoven fabric 30 is not provided and recovered through the nonwoven fabric rollers 360 and the nonwoven fabric rollers 370, but may be provided with a plurality of nonwoven fabric guide rollers 381 and 382 as shown in FIG. It may be configured to be circulated repeatedly and continuously.

In addition, the winder 400 is a portion where the cloth 20 having been transferred through the transfer press machine 300 is wound and stored. The winder 400 is constituted by a roller on which the fabric 20 on which the image is printed is wound.

Particularly, in the case of the winder 400, it is preferable that the winder 400 is formed so as to automatically adjust the winding speed. For this purpose, on the moving path of the raw material 20 wound on the winder 400, And a winding sensor 410 for sensing a conveying speed of the recording medium.

The air blowing fan 500 quickly rapidly cools the fabric 20 to which the image has been transferred, thereby rapidly increasing the fastness of the image transferred to the fabric 20.

At this time, the raw material 20 wound on the winder 400 through the heating roller 310 and the pressing roller 320 is disposed so as to descend directly below the blower fan 500, So that the cooling air can be directly supplied to the fabric 20 so that the room temperature can be rapidly increased.

Hereinafter, a printing method using a fluorescent dye printing apparatus of a fabric according to an embodiment of the present invention will be described in detail with reference to flowcharts of FIG. 4 attached hereto.

First, an image designing step (S100) for designing an image to be printed on a fabric is performed by the computer 100 to be used.

At this time, the image includes a fluorescent color portion and a general color portion, and the design of the image is performed using a graphic program installed in the transfer computer.

Next, when designing the image by the above process is completed, a printing step (S200) of printing the designed image on the transfer sheet 10 by the transfer printer 200 is performed.

At this time, the image designed by the transfer computer 100 is transferred to the transfer printer 200 through the transfer printing program of the transfer computer 100, and the transfer printer 200 transfers the image data of the fluorescent dye and the general color The dye is simultaneously output to the transfer sheet 10 to print the designed image.

Particularly, before performing printing on the image, the space in which the transfer printer 200 for outputting the image is installed is maintained at a temperature between 15 ° C and 25 ° C and a humidity between 40% and 60%.

That is, in the case of a fluorescent dye printed on the transfer sheet 10, since the ink is dissolved in an organic solvent and is used in a higher viscosity than a typical color dye, The ink is maintained at a temperature of between 40 and 60%, thereby causing a phenomenon of flammability which may occur in the process of printing the fluorescent dye on the transfer paper 10, or clogging of the nozzle for jetting the fluorescent dye And prevents the color change, so that the color dyes and the fluorescent dyes can be simultaneously printed by a single operation. At this time, when the space where the transfer printer 200 is installed is maintained at a temperature less than 15 ° C or less than 40%, the nozzles are clogged due to high viscosity of the fluorescent dye. ) Is maintained at a temperature exceeding 25 ° C or maintained at a humidity exceeding 60%, there arises a problem that a fluorescent dye is blown and accurate printing can not be performed. Therefore, the entire space in which the transfer printer 200 is installed must be maintained at a temperature between 15 ° C and 25 ° C, and at a humidity between 40% and 60%.

Of course, since it is practically difficult to configure the temperature and humidity conditions so that only the portion of the transfer printer 200 in which the nozzles are to be sprayed is maintained, the transfer printer 200 is placed in a separate space It is most preferable to maintain the inside of the space at the above-described temperature condition and humidity condition.

Next, a sublimation transfer step (S300) is performed in which the image printed on the transfer sheet 10 is transferred to the raw material 20 when the image printing on the transfer sheet 10 through the above-described process is completed.

At this time, the fabric 20 may be fabricated by using a fabric made of 100% Palletester which can be sublimated and transferred smoothly, a fabric blended with a polyester and a polyurethane, a fabric blended with a polyester and a cotton blend, (Two-layer, three-layer) fabrics.

In this sublimation transfer step S300, the image printing surface of the transfer sheet 10 and the printing target surface of the fabric 20 are brought into contact with each other, and a nonwoven fabric 30 is added to the non-printing surface of the fabric 20 Passing through a transfer press machine 300 maintained at a temperature of 160 ° C to 220 ° C to transfer the image printed on the transfer sheet onto the fabric.

At this time, the temperature range is a range of conditions for stably sublimating and transferring the fluorescent dye printed on the transfer sheet 10 to the fabric. That is, in the case of a fluorescent dye, when the temperature of the transfer press 300 is sublimed from 160 ° C., transferring to a temperature of less than 160 ° C. results in less sublimation and no accurate transfer. The temperature of the press machine 300 is most preferably in the range of 160 ° C. to 220 ° C. and the transfer is performed. Particularly, the temperature is maintained by adjusting the temperature of the heating roller 310.

Particularly, in the sublimation transferring step S300, the fabricating roller 330 interlocks with the releasing sensor 331 to keep the releasing speed of the fabric 20 constant at all times, so that the fabric 20 abruptly It is possible to prevent the change of the fabric stocking rate due to the loosening or the loosening phenomenon of loosening and thus to transfer the image to the cloth 20 accurately.

In addition, the transfer sheet 10 and the raw material 20, which are opposite to each other in the sublimation transferring step S300, are passed through the transfer press 300 at a speed of 1.9 m / min to 2.3 m / min .

This is because when the speed at which the transfer sheet 10 and the cloth 20 pass through the transfer press 300 is slower than 1.9 m / min, the fabric tends to rub or shrink, and the speed is 2.3 m / min The chromaticity is lowered as the speed at which the fluorescent dye and color dye are transferred from the transfer sheet 10 to the fabric 20 is increased.

Further, in the sublimation transferring step S300, the transfer sheet 10 and the cloth 20, which are opposite to each other, pass through the transfer press while applying a pressure of 2 bar to 5 bar.

At this time, the pressure is a pressure at which a transfer material (a raw material and a transfer paper and a nonwoven fabric) passing between the heating roller 310 and the pressure roller 320 constituting the transfer press 300 is pressed. When the pressure is less than 2 bar, The fluorescent dye and the color dye can not be completely transferred to the fabric 20 due to the small pressure between the transfer sheet 20 and the transfer sheet 10. When the pressure exceeds 5 bar, The dye is excessively impregnated into the backing layer 20 and is conveyed to the rear surface of the fabric 20 to cause the chroma to fall or the fluorescent dye and the color dye to appear on the pressure roller 320 and the heating roller 310. Therefore, the pressure should be transferred while maintaining the above-mentioned range.

Particularly, in the above process, the nonwoven fabric 30 prevents the raw material 20 from being pushed, and at the same time, the raw material generated during the transfer of the image from the transfer material 10 to the raw material 20 is removed from the raw material 20 more quickly The sublimation transfer can be performed more smoothly.

On the other hand, the temperature condition, the pressure condition and the speed condition of the transfer press machine described above can be adjusted within the range of each condition according to the kind of the raw material 20.

Next, when the image transfer to the fabric 20 is completed through the above process, the drying step S400 for cooling and drying the finished fabric and the winding step S500 for winding the dried fabric to the winding machine 400 .

At this time, the drying step (S400) may allow the fabric 20, which has passed between the heating roller 310 and the pressure roller 320, to be dried before being wound on the winder 400, Thereby preventing the other portion of the fabric 20 wound around the outer surface 400 from being buried.

This drying step (S400) is performed by continuously blowing air by using, for example, a blowing fan (500) until the transferred fabric (20) is wound around the winder (400).

After the image transfer and drying are completed through the above-described processes, the fabric 20 is wound around the take-up machine 400 to complete the printing operation.

Particularly, when winding the fabric 20 to the winding machine 400, the winding machine 400 interlocks with the winding sensor 410 to keep the winding speed of the fabric 20 constant at all times, It is possible to prevent deformation of the image transferred to the corresponding fabric 20.

As a result, the method of printing a fluorescent dye of a fabric according to the present invention is a method which can prevent a problem of low saturation, water dropping and transfer due to dyeing when the fluorescent dye is printed by a conventional sublimation transfer method , Thereby obtaining a fabric printed with a fluorescent dye of excellent quality.

In particular, in the printing step S200 of outputting an image to the transfer sheet, the transfer printer 200 is provided in a space maintained at a temperature between 15 ° C and 25 ° C and a humidity between 40% and 60% The flickering phenomenon or the clogging of the nozzle, which is generated when the fluorescent dye is output, can be prevented.

In addition, in the sublimation transfer step (S300), the transfer is performed at a temperature condition of 160 ° C. to 220 ° C., a transfer rate condition of 1.9 m / min to 2.3 m / min, and a pressure of 2 bar to 5 bar, Can be smoothly performed and can be stably performed. Further, in the state where the transfer is completed, problems such as water dropping and dyeing upon washing can be prevented.

10. Transfer paper 20. Fabric
100. Used computer 200. Used printer
300. Fusing press 310. Heating roller
320. Pressure roller 330. Rollers for supplying the fabric
331. Release sensor 340. Roller for transfer sheet
350. Transfer rollers rollers 360. Nonwoven rollers
370. Rollers for receiving nonwoven fabrics 381,382. Guide rollers for nonwoven fabric
400. Winding machine 410. Winding sensor
500. Blower fan

Claims (5)

A graphic designing step of designing a fluorescent color portion and an ordinary color portion of an image to be output on a fabric using a computer for electronic use;
A fluorescent dye and a general color dye were simultaneously outputted to the transfer paper with the transfer printer in a state where the space for installing the printer for outputting images was maintained at a temperature between 15 ° C and 25 ° C and a humidity between 40 and 60% A printing step of printing the designed image;
The non-woven fabric is further passed through a transfer press machine maintained at a temperature of 160 ° C to 220 ° C in a state where the non-woven fabric is further abutted on the non-printed surface of the fabric, And transferring the printed image onto the fabric;
A drying step of cooling and drying the transferred fabric of the image;
And winding up the dried fabric to a winding machine. The method according to claim 1,
The fabric is characterized in that the fabric is one of a fabric made of 100% polyester fabric, a fabric blended with a polyester and a polyurethane, a fabric blended with a polyester and a cotton blend, a fabric blended with a polyester, a cotton and a polyurethane, A fluorescent dye printing method of fabric. The method according to claim 1,
Wherein the transfer sheet, the fabric, and the nonwoven fabric are allowed to pass through the transfer press at a speed of 1.9 m / min to 2.3 m / min in the sublimation transfer step. 4. The method according to claim 1 or 3,
Wherein the transfer sheet, the fabric and the nonwoven fabric are allowed to pass through the transfer press while applying a pressure of 2 bar to 5 bar in the sublimation transfer step. A graphic designing step of designing a fluorescent color portion and a general color portion of an image to be output on a fabric by using a front-use computer, a step of designing a space in which a printer used for outputting the image is installed, A printing step of simultaneously printing a fluorescent dye and a general color dye on a transfer sheet with the transfer printer kept in a humidity of 40 to 60% to print the designed image; A sublimation transfer step of transferring an image printed on the transfer sheet onto the fabric through a transfer press which is maintained at a temperature between 160 ° C and 220 ° C in a state where the object surfaces are in alignment with each other; And a step of winding and drying the dried fabric to a winding machine. The fabric.

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