JP2012087422A - Printing method and printed product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing method that can form a pattern of contrasts only by a monochrome dye and can simplify a production process, by using both an ink jet printing step for printing a highly precise ink image on a fabric made of a synthetic fiber and a dyeing step for dyeing the whole fabric.SOLUTION: The printing method forms a pattern of different contrasts on a fabric by using both a step for ink jet printing a transparent pattern by using an UV ink having transparency on a fabric comprising a synthetic fiber and a dyeing step for dyeing the whole fabric by a dyestuff.

Description

  The present invention relates to a printing method and a printed material for a fabric.

  For example, in the case of forming a pattern on various large-sized fiber media such as banners and flags (natural fiber or synthetic fiber fabrics, etc.), an ink jet textile printing method or screen printing for printing on the fabric using an ink jet printer. There is a screen printing method in which screen printing is performed on a fabric using a machine.

  Exemplifying the inkjet printing method, for example, printing is performed by ejecting UV ink onto a fabric from an inkjet head at an inkjet print station, and curing the printed surface by irradiating the printing surface with UV light at a UV curing station. Furthermore, the ink printed in the drying station, in particular, the dye component that has penetrated into the fiber is heat-cured to stabilize (fix), thereby reducing the generation of uncured monomers (see Patent Document 1).

  Explaining the screen printing method, the laminate covered with a resin coating film having either waterproof or moisture permeable properties is adhered to an endless transport belt and transported to the screen printing plate and stopped. Let Printing is performed while the screen printing plate is superposed on the laminate and the printing paste of the first color supplied to the screen printing plate is stretched with a squeegee, a roller or the like. In the case of multicolor printing, the screen printing plate is retracted from the laminate and the conveyor belt is driven to print the next color in the same manner, and the laminate after printing is conveyed to the drying process to receive ink. It is made to dry (refer patent document 2).

JP-T-2004-532750 JP 2004-74625 A

In the ink jet textile printing method of Patent Document 1, there is a reference to fixability with respect to curing of UV ink printed on a woven fabric, but there is no reference to how the pattern is expressed in relation to the printed fabric. Absent.
In particular, when a pattern is expressed by the density of monochromatic ink using a light color such as pastel or a glossy color such as silky like, the fabric can be printed only by inkjet printing capable of high-definition printing.
In addition, when dyeing the entire surface of the fabric with UV ink, the dye component that has penetrated the fibers in the drying station cannot be completely cured by heating, and uncured monomers are likely to be generated. A cleaning process is also required, which reduces productivity and increases manufacturing costs.

  In the screen printing method of Patent Document 2, a printed image is formed through a screen printing plate despite the fact that the viscosity of the ink is set to be relatively high. It is difficult to express light and shade.

  The object of the present invention is to use an inkjet printing process for printing a high-definition ink image on a fabric made of synthetic fibers and a dyeing process for dyeing the entire fabric, so that a pattern can be formed with contrast using only a single color dye. Furthermore, it is an object of the present invention to provide a printing method capable of simplifying the manufacturing process and a colorful printed product printed using this printing method.

The present inventor has found that a pattern can be formed with a single color shading expression in a simple process by combining ink jet printing and a dyeing process for dyeing the entire fabric of the fabric through intensive research, and has reached the present invention.
That is, a printing method for printing a fabric using a synthetic fiber with a dye, the step of inkjet printing a transparent pattern using a transparent UV ink on the fabric, and the entire fabric of the fabric with a dye. A pattern having a different contrast is formed on the fabric in combination with a dyeing process for dyeing.

By using the above printing method, when a transparent pattern is inkjet printed with a UV ink that can be dyed on a fabric using synthetic fibers and then the entire fabric is dyed with a dye, each of the synthetic fibers used as the fabric is printed. The irregular reflection part that combines reflection from the fibers of the book looks whitish, whereas the printed surface of the transparent UV ink suppresses the irregular reflections from the individual fibers and makes the fabric appear darker. By this, a pattern can be formed.
In addition, when ink-jet printing is performed on a fabric using synthetic fibers, if the portion of the fabric to be dyed is printed with UV ink that cannot be dyed, the printed portion is not dyed and the ground color of the fabric is transparent through the transparent ink. Since it is visible, the pattern printed by inkjet printing can be clearly expressed as a different color.

In addition, a transparent pattern using UV ink is printed on the cloth using an ink jet printer, and the UV ink image is heated and cured, and then the cloth is subjected to either a fluid dyeing machine, an ink jet printing machine, or a screen printing machine. And the entire fabric is dyed.
According to this textile printing method, it is possible to remove uncured UV ink printed by ink jet printing in the cleaning step performed last in the dyeing step. Therefore, the manufacturing process which removes the unreacted monomer required by the use of cloth, such as underwear, can be simplified.

In addition, the dyeing step includes a step of dyeing the fabric while immersing the fabric in a dyeing tank in which the dyeing liquid circulates, a step of dyeing the fabric fibers directly by inkjet printing, or a screen printing plate superimposed on the fabric. A dyeing process that performs one of the processes of supplying printing paste to the screen printing plate and dyeing by screen printing, a reduction washing process that decomposes and removes unfixed dye on the fabric, and the fabric after the reduction washing is washed with water. And a step of drying, and disperse and remove unfixed disperse dyes in the reduction washing step.
As a result, the residual unreacted monomer of the UV ink when ink-jet printing is performed on the fabric using the synthetic fiber can be efficiently removed by the washing process of the dyeing process, and the unfixed dye discharged by the UV ink Can be decomposed and removed by reducing cleaning.

The dye used in the dyeing step is a reactive dye, and the fabric dyed by the reactive dye has a polar group containing cationic dyeable polyethylene terephthalate or nylon, and ink jet printing was performed on the fabric. By performing the dyeing process later, the UV ink printing surface of the fabric is not dyed with the reactive dye, and a pattern due to a difference in contrast with other dyed areas is formed.
According to this textile printing method, by using a transparent UV ink printing surface as a mask for a dyeing region, it is possible to clearly form a pattern with different colors on the fabric.

  The dye used in the dyeing process is a disperse dye, and the cloth dyed with the disperse dye is polyethylene terephthalate, and the UV ink printing surface on which the UV ink is printed on the cloth by the ink jet printing is the same as the cloth. It is characterized in that a pattern due to a difference in contrast is formed by the fact that the reflection property of light from the synthetic fiber fabric is different from that of the other dyeing region.

  According to this textile printing method, the UV ink printing surface on which the transparent UV ink is printed can be dyed to the same extent in the dyeing process, but the UV ink printing surface on which the UV ink is printed and other dyeing regions The contrast is formed by the difference in the reflection characteristics of light from the synthetic fiber fabric. Specifically, the individual fibers are reflected from the fabric of the fabric on which the UV ink is not printed, resulting in irregular reflection and appearing glossy and white. However, the individual fibers are visible from the UV ink printing surface. Because the diffused reflection from the surface is suppressed and the color of the fabric looks dark, even if a light single color such as pastel or a glossy color such as silky-like is printed, it is possible to form a pattern with light and shade.

  In the printed matter printed using any of the above-mentioned printing methods, it is possible to realize pattern formation with different contrasts by contrast using a single color dye or by colors dyed by the ground color and the dyeing process of the fabric. A high-definition printing using UV ink can freely form a pattern with a wide variety, and can provide a printed fabric that is gentle to the skin.

  According to the present invention, a combination of an ink jet printing process for printing a high-definition ink image on a fabric made of synthetic fiber and a dyeing process for dyeing the entire fabric enables pattern formation by contrast using only a single color dye. In addition, it is possible to provide a printing method capable of simplifying the manufacturing process and a colorful printed product printed using this printing method.

It is the sample photograph figure which formed the pattern by contrast by the difference in the reflective property of light with a monochromatic color using a disperse dye.

Hereinafter, an example of the textile printing method according to the present invention will be described.
As a fabric used in the present embodiment, a fabric including a polyester-based or polyamide-based synthetic fiber is used. The fabric is made by combining a step of printing a transparent pattern by inkjet printing using a UV ink (colorless transparent or white) having transparency with respect to the fabric and a dyeing step of dyeing the entire fabric with a dye. Patterns having different contrasts between the color and the color dyed by the dyeing process are formed.

  In the inkjet printing process, an ink image is printed on a fabric using a known inkjet printing apparatus. That is, an ink image is printed by ejecting UV ink onto a continuous continuous fabric conveyed on a platen using a known piezo-type inkjet head. The inkjet head may be either a serial type head that performs printing while scanning a head mounted on a carriage in the cloth width direction, or a line type head provided in a width direction print region of the cloth.

  The fabric on which the UV ink is ejected is irradiated with ultraviolet rays by a UV curing device provided downstream of the printing position in the fabric transport direction, and the UV ink is cured. The UV curing device is provided with, for example, an ultraviolet curing lamp unit using an LED element as a light source, and is provided corresponding to the printing range of each color head provided in the inkjet head.

  In the dyeing step, the fabric is dyed using a known fluid dyeing machine. A dyeing treatment process in which a long continuous cloth is immersed in a dyeing tank in which the dyeing liquid circulates is conveyed and dyed, a reduction washing process in which unfixed dye is decomposed and removed, and the cloth after reduction washing is washed with water. Removing the dirt and drying. In the reduction cleaning process, unfixed disperse dyes and reactive dyes are decomposed and removed. After drying, a final setting (finishing) process is performed according to the use of the fabric.

Using the above printing method, when dyeing is performed after ink-jet printing with a UV ink that can be dyed on a fabric using synthetic fibers, the reflections from the individual fibers of the synthetic fibers used as the fabric are synthesized. While the irregularly reflected portion looks whitish, the transparent UV ink printing surface can be patterned with a single color shading by suppressing irregular reflection from individual fibers and making the fabric color appear darker.
In addition, if printing is performed with UV ink that cannot be dyed on the part of the fabric that is desired to be discharged, the printed part is not dyed and the ground color of the fabric can be seen through the transparent ink, so the pattern printed by inkjet printing is contrasted as a different color. Can be expressed clearly.

  In addition, after printing a pattern with UV ink on the fabric using an ink jet printer and heating and curing the UV ink image, the fabric is introduced into a fluid dyeing machine and the entire fabric is dyed. The uncured UV ink printed in the ink jet printing process can be removed in the cleaning process that is always performed in step (b). Therefore, the manufacturing process which removes the residual unreacted monomer required by the use of the cloth such as underwear can be simplified.

  In addition, the dye used in the dyeing process is a reactive dye, and when the fabric dyed by the reactive dye has a polar group containing cationic dyeable polyethylene terephthalate or nylon, after performing inkjet printing on the fabric By performing the dyeing process, the UV ink printing surface of the fabric is not dyed with the reactive dye, and a pattern due to a difference in contrast with other dyed areas is formed. According to this textile printing method, a pattern with different colors can be clearly formed on the fabric by using transparent UV ink as a mask for the dyeing region.

  The dye used in the dyeing process is a disperse dye. When polyethylene terephthalate is used as the synthetic fiber of the fabric dyed by the disperse dye, the UV ink printing surface on which the UV ink is printed on the fabric by ink jet printing. Is dyed to the same extent as the fabric, and a pattern is formed due to a difference in contrast with the other dyed areas. According to this textile printing method, the UV ink printing surface on which transparent UV ink is printed can be dyed to the same extent in the dyeing process, so even if printing is performed using a single color dye, a pattern is formed due to the difference in contrast. can do.

  In particular, in the case of a glossy fabric (for example, satin), a contrast is formed by different reflection characteristics of light from the synthetic fiber fabric on the UV ink printing surface on which the UV ink is printed and other dyed areas. . According to this textile printing method, individual fibers are reflected from a fabric on which UV ink is not printed, resulting in irregular reflection, resulting in a glossy and whitish appearance, but from the UV ink printing surface, irregular reflection from individual fibers. Since the color of the fabric looks darker, even if a light color such as a pastel tone or a glossy color such as silky like is printed with only a single color dye, a pattern with a light and shade can be formed.

Hereinafter, an example of the textile printing method will be specifically described.
In the following, the same UV ink was used, and the experiment was performed with different dyes and dyeing conditions depending on the material of the fabric.

[Example 1]
UV ink is printed as a mask on the fabric so that the print site is not stained with reactive dyes.
As the UV ink to be used, a colorless transparent ink containing an acrylic ester derivative and a methacrylic ester derivative was used.

As the fabric, atmospheric pressure cationic dyeable PET (polyethylene terephthalate) fiber fabric (including sulfone group (—SO ₃ ), etc.) or nylon 66 was used.
In addition, the dye used is a KayacrlED dye that is a cationic dye for atmospheric pressure cationic dyeable PET (polyethylene terephthalate) fiber fabric. In the case of nylon 66, nylon sun red UMN (manufactured by Sand Corp.) that is an acid dye is used. Using.

The staining conditions will be described. MIMAKI ENGINEERING CO., LTD., A long woven fabric refined by ordinary methods using atmospheric pressure cationic dyeable PET fiber fabric (including sulfone group (—SO ₃ ), etc .; silky-like glossy color that can be used for women's underwear) Inkjet printing was performed using an inkjet printer (UJV-160). Subsequently, it dye | stained for 30 minutes in the 100 degreeC dyeing bath using the well-known liquid flow dyeing machine. And after reduction washing, it washed with water and dried. Finally, final setting was performed at 140 ° C. for 1 minute.

  In the case of nylon 66, the long woven fabric refined by a conventional method was subjected to ink jet printing using an ink jet printer (UJV-160) manufactured by Mimaki Engineering. Subsequently, it dye | stained for 30 minutes in about 100 degreeC dyeing bath using the well-known liquid flow dyeing machine. And after reduction washing, it washed with water and dried. Finally, final setting was performed at 140 ° C. for 1 minute.

  In any case using the normal pressure cationic dyeable PET fiber and the nylon 66 fabric, the UV ink printing surface of the fabric is not dyed by the reactive dye. Therefore, since the fabric can be seen through the UV ink printing surface, a pattern is formed by the difference in contrast between the portion where the ground color of this fabric can be seen through and the other dyed regions. According to this textile printing method, by using a transparent UV ink printing surface as a mask for a dyeing region, it is possible to clearly form a pattern with different colors on the fabric.

[Example 2]
By suppressing the irregular reflection of the fabric fibers, a pattern is formed on the monochromatic fabric with a contrast due to shading.
As the UV ink to be used, unemployed transparent ink containing an acrylic ester derivative and a methacrylic ester derivative was used.

As the fabric, a PET (polyethylene terephthalate) fiber fabric was used.
The dye is a disperse dye (Kayalon Polyester RedBL-E / manufactured by Nippon Kayaku Co., Ltd. (magenta)) or a disperse dye having a non-functional group such as a quinone or azo dye.

  The staining conditions will be described. A long woven fabric refined by a conventional method using a PET fiber fabric was subjected to inkjet printing using an inkjet printer (UJV-160) manufactured by Mimaki Engineering. Subsequently, it dye | stained for 45 to 60 minutes in the dyeing bath of 130 to 135 degreeC using the well-known liquid flow dyeing machine. And after reduction washing, it washed with water and dried. Finally, final setting was performed at 170 ° C. for 1 minute.

In the photographic diagram of FIG. 1, the UV ink printing surface 1 on which UV ink is printed is dyed to the same extent as the cloth, and a pattern 3 is formed due to the difference in contrast with the dyeing area 2 only for dyeing the other cloth. The From the dyed area 2 where the UV ink is not printed, the individual fibers of the fabric are reflected to cause irregular reflection, and it looks glossy and white, but from the UV ink printing surface 1, the irregular reflection is suppressed. The color of the fabric looks dark. Accordingly, even if a light single color such as pastel tone or a glossy color such as silky like is selected for dyeing, a pattern 3 is formed by shading between the UV ink printing surface 1 on which UV ink is printed on the fabric and the dyeing region 2 only for dyeing. be able to.
In the dyeing process, it is not always necessary to use a liquid dyeing machine, and ink jet printing using an ink jet printing machine may be used, or screen printing using a screen printing machine may be used. Ink-jet printing is a process in which dye components that have penetrated into fabric fibers by ink-jet printing are heated and dyed, and screen printing is performed by overlaying a screen printing plate on the fabric and supplying printing glue to the screen printing plate. This is a step of dyeing.

[Example 3]
In textile printing by ink jet printing and screen printing, atmospheric pressure cationic dyeable PET (including fiber cloth (including sulfone group (—SO ₃ ))) or nylon 66 is used as the fabric, and atmospheric pressure cationic dyeable PET is used as the dye. For the (polyethylene terephthalate) fiber fabric, the dyeing conditions will be described in the case of using the KayacrlED dye, which is a cationic dye, and in the case of nylon 66, the nylon sun red UMN (manufactured by Sand), which is an acid dye.

Normal pressure cationic dyeable PET fiber fabric (including sulfone group (—SO ₃ ), etc .; silky-like glossy color that can be used for women's underwear), or long woven fabrics refined by nylon using nylon 66 Inkjet printing was performed using an MIMAKI ENGINEERING ink jet printer (UJV-160). Next, in the case of inkjet printing, inkjet printing is performed using an Mimaki Engineering Co., Ltd. inkjet printing machine (TX2-1600), and in the case of screen printing, printing is performed using a general screen printing machine. It was. Next, the wet heat treatment was performed with 105 ° C. wet heat steam for 20 minutes. Then, after reduction cleaning, it was washed with water and dried, and finally set at 140 ° C. for 1 minute.

  In the case of both ink jet printing and screen printing, UV ink printing of the fabric is performed in any case using a normal pressure cationic dyeable PET fiber and a nylon 66 fabric as in the case of using a liquid dyeing machine. The surface is not dyed by reactive dyes. Therefore, since the fabric can be seen through the UV ink printing surface, a pattern is formed by the difference in contrast between the portion where the ground color of this fabric can be seen through and the other dyed regions. According to this textile printing method, by using a transparent UV ink printing surface as a mask for a dyeing region, it is possible to clearly form a pattern with different colors on the fabric.

[Example 4]
A PET (polyethylene terephthalate) fiber fabric was used as the fabric in ink jet printing and screen printing.
The dyeing conditions when a disperse dye (Kayalon Polyester RedBL-E / manufactured by Nippon Kayaku Co., Ltd. (magenta)) or a disperse dye having a non-functional group such as a quinone or azo dye will be described.

  A long woven fabric refined by a conventional method using a PET fiber fabric was subjected to inkjet printing using an inkjet printer (UJV-160) manufactured by Mimaki Engineering. Next, in the case of inkjet printing, inkjet printing is performed using an Mimaki Engineering Co., Ltd. inkjet printing machine (TX2-1600), and in the case of screen printing, printing is performed using a general screen printing machine. It was. Next, both the inkjet printing and the screen printing were subjected to a high pressure steam treatment at 130 ° C. high pressure steam for 30 minutes. Then, after reduction cleaning, it was washed with water and dried, and finally set at 170 ° C. for 1 minute.

  In the case of inkjet printing and screen printing, a pattern 3 as shown in the photographic diagram of FIG. 1 is formed as in the case of using a liquid dyeing machine. From the dyed area 2 where the UV ink is not printed, the individual fibers of the fabric are reflected to cause irregular reflection, and it looks glossy and white, but from the UV ink printing surface 1, the irregular reflection is suppressed. The color of the fabric looks dark. Accordingly, even if a light single color such as pastel tone or a glossy color such as silky like is selected for dyeing, a pattern 3 is formed by shading between the UV ink printing surface 1 on which UV ink is printed on the fabric and the dyeing region 2 only for dyeing. be able to.

  In printed matter printed using any of the above-described printing methods, it is possible to realize pattern formation with different contrasts by contrast using a single color dye, or by colors dyed by the ground color and dyeing process of the fabric. In addition, it is possible to provide a printed fabric that can freely form a variety of patterns by high-definition printing with UV ink and that is also gentle to the skin.

  1 UV ink printing surface 2 Dyeing area 3 Pattern

Claims (6)

A printing method for printing a fabric using a synthetic fiber with a dye,
A pattern having a different contrast is formed on the fabric by using both a step of inkjet printing a transparent pattern using a UV ink having transparency on the fabric and a dyeing step of dyeing the entire fabric of the fabric with a dye. Printing method.   After the transparent pattern by UV ink is printed on the cloth using an ink jet printing machine and the UV ink image is heated and cured, the cloth is printed using any one of a fluid dyeing machine, an ink jet printing machine, and a screen printing machine. 2. The textile printing method according to claim 1, wherein the entire fabric is dyed. The dyeing step is a step of dyeing the fabric by immersing the fabric in a dyeing tank in which the dyeing liquid circulates, a step of dyeing the fabric fibers directly by inkjet printing, or a screen printing plate by superimposing a screen printing plate on the fabric. A dyeing process that performs any of the processes of supplying printing paste to the plate and dyeing by screen printing, a reduction washing process that decomposes and removes unfixed dye on the fabric, and the fabric after reduction washing is washed with water and dried. Including the steps of:
The textile printing method according to claim 1 or 2, wherein the unfixed material including the uncured material of the UV ink is removed in the reduction cleaning step.   The dye used in the dyeing step is a reactive dye, and the fabric dyed by the reactive dye has a polar group containing cationic dyeable polyethylene terephthalate or nylon, and after performing inkjet printing on the fabric, 4. The UV ink printing surface of the fabric is not dyed with reactive dyes by performing a dyeing process, and a pattern due to a difference in contrast with other dyed areas is formed. The printing method described.   The dye used in the dyeing process is a disperse dye, and the fabric dyed with the disperse dye is polyethylene terephthalate. The pattern according to any one of claims 1 to 3, wherein a pattern due to a difference in contrast is formed by different light reflection characteristics from the synthetic fiber fabric between the dyed region and the other dyed region. The printing method according to item.   A printed matter, which is printed using the method according to any one of claims 1 to 5.