JP7380222B2 - fabric prints - Google Patents

Description

The present invention relates to a textile printed material on which visual information is printed.

A variety of visual information is displayed on the fabric of textile products, such as the manufacturer, size, material, product name, and handling precautions. The most common method of displaying information is to sew a tag with information written on it, but if the tag comes into direct contact with the skin, such as innerwear, it may irritate the wearer, so we place emphasis on comfort. A method of displaying information directly on fabric without using tags has been proposed. As methods for directly displaying information on fabrics, there are known thermal transfer labels as shown in Patent Document 1, inkjet methods as shown in Patent Documents 2, and pad printing methods as shown in Patent Documents 3.

By the way, fabrics made of fibers of multiple colors, such as heathered fabrics, have a complex visual effect with unevenness because they use heathered yarn that is made by twisting yarns of two colors, light and dark, and the subtle shades of color are Since it has a gentle texture, it is possible to provide consumers with a variety of product choices. However, when displaying visual information directly on fabric, visibility is poor with a single color display, making it difficult to read the information.

JP2007-276486A Japanese Patent Application Publication No. 8-283636 US Patent No. 7,498,277

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fabric printed material in which visual information printed on the fabric can be clearly recognized. In particular, it is an object of the present invention to provide a textile printed material in which visual information printed on a fabric made of fibers of a plurality of colors, such as a heathered fabric, can be clearly recognized.

In order to solve the above-mentioned problems and achieve the objects, the present invention provides a fabric printed material having a fabric, a first printed layer, and a second printed layer containing visual information in this order, wherein the fabric is a heathered fabric. , a textile printed material containing carbon black in the first printed layer .

Furthermore, the fabric printed matter of the present invention is
L*a*b* color system coordinates (L* _cx , a* _cx , b* _cx ) of multiple measurement points of the fabric and their average value (L* _cave. , a* _cave. , b * _cave. ) and the standard deviation SDc of the color difference (ΔEcx) of each measurement point, which was obtained from the following formula 1,
L*a*b* color system coordinates (L* _py , a* _py , b* _py ) of multiple measurement points of the first printed layer and their average values (L* _pave. , a* _{pave .} , b* _pave. ) and the standard deviation SDp of the color difference (ΔEpy) at each measurement point obtained from Equation 2 satisfies Equation 3.
Formula 1:
ΔE _cx = [(L* _cx - L* _cave. ) ² + (a* _cx - a* _cave. ) ² + (b* _cx - b* _cave. ) ² ] ^1/2
However, x represents each measurement point.
Formula 2:
ΔE _py = [(L* _py - L* _pave. ) ² + (a* _py - a* _pave. ) ² + (b* _py - b* _pave. ) ² ] ^1/2
However, y represents each measurement point.
Formula 3:
SDc>SDp

According to the fabric printed material according to the present invention, it is possible to visually recognize visual information printed on the fabric.

This is a printed matter produced in Example 1. This is a printed matter produced in Comparative Example 1.

Embodiments of the present invention will be described below. However, the present invention is not limited to the following embodiments, and can be implemented with various modifications depending on the purpose and use.

<Visual information>
The fabric printed matter according to the present invention includes visual information. Here, visual information refers to information that appeals to the sense of sight, such as letters, symbols, codes, numbers, figures, and patterns. Also, "visually appealing" refers to something that can be recognized through the sense of sight, regardless of whether it has a design or not. Preferably, it is something that can be recognized through light reflected by or emitted from the substance. Of course, you can also combine it with colors. The following purposes are exemplified.
Product names, trademarks, service marks, house marks, group indications, and trade names.
Characters, images (pictures), point marks, etc. They also give viewers a sense of beauty, joy, and excitement.
Quality display, handling instructions, manufacturing date, expiration date, manufacturing lot number, matrix-type two-dimensional code known as a "QR code" (registered trademark), etc. These are important information for producers, distributors or consumers.
The visual information that can be effectively used in the printed matter of the present invention preferably includes at least one of a quality indicator mark, a handling instruction mark, a manufacturing lot number, and a matrix type two-dimensional code.

<Fabric>
The fabric used in the present invention is obtained by manufacturing a fabric according to a conventional method, and may be a woven fabric, a knitted fabric, or a non-woven fabric, and may be a mixed knitted or knitted fabric with a mixture of woven and knitted fabrics. Good too.

Textiles include three-way weave, such as plain weave, oblique weave, and satin weave; variable weave, such as modified plain weave, modified oblique weave, and modified satin weave; special weave, such as honeycomb weave, mosa weave, and nashiji weave; Single double weave such as heavy weave and double weave weave, warp pile weave such as air weave, bag weave, double velvet, towel, seal, velour, etc., weft pile weave such as velveteen, weft velvet, velvet, kohl-ten, etc. , gauze, patterned gauze, etc. are preferred. The weaving is preferably carried out using a shuttle loom (such as a fly shuttle loom) or a shuttleless loom (such as a rapier loom, a gripper loom, a water jet loom, an air jet loom, etc.).

The type of knitted fabric may be a weft knitted fabric or a warp knitted fabric. Regarding the weft knitting, preferred are flat knitting, rubber knitting, double-sided knitting, purl knitting, tuck knitting, floating knitting, single ridge knitting, lace knitting, and pile stitching, and for warp knitting, single denby knitting, single atlas knitting, etc. Preferred are knit, double cord knit, half tricot knit, fleece knit, and jacquard knit. Further, the woven fabric may be a single layer or a multilayer of two or more layers. Further, the knitting is preferably carried out using a circular knitting machine, a flat knitting machine, a flat knitting machine such as a cotton-type knitting machine, a tricot knitting machine, a Raschel knitting machine, a Milanese knitting machine, or the like.

In the present invention, the fabric is preferably a woven fabric or a knitted fabric, and more preferably a knitted fabric.

Further, as a specific example, the fabric print according to the present invention is suitable when the fibers constituting the fabric include fibers of multiple colors. preferable. For example, heather fabric. Some colors include white fibers and black fibers.

Multifilament threads and monofilament threads can be used as the fibers, and heathered fabrics are preferred as fabrics containing such fibers.

Polyester fibers can be used in the fabric of the present invention. Any of polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, etc. may be used as the polyester fiber. Among these, polyethylene terephthalate fibers have good texture, gloss, and easy care properties such as resistance to wrinkles, and are suitable as fiber materials constituting stretchable fabrics. Furthermore, polyethylene terephthalate fibers are suitable when used in combination with polyurethane urea elastic fibers, and can provide a good stretch fabric. Polyester fibers are generally dyed using disperse dyes, but disperse dyes can cause poor fastness such as color migration. Therefore, it is preferable to use cationically dyeable polyester fibers that can be dyed well with cationic dyes. The content of polyester fibers contained in the fabric is preferably 25% by mass or more. A content of 25% by mass or more provides a good texture. Further, it may be a fabric containing natural fibers such as cotton and silk. Further, the content of polyester fibers contained in the fabric may be 100% by mass. Such fabrics are highly durable.

<First printing layer>
The fabric printed matter according to the present invention has a first printed layer. The first printed layer is a printed layer provided above the fabric. The first printed layer may be in direct contact with the fabric, or there may be another layer between the first printed layer and the fabric. Further, the first printed layer may be composed of a plurality of printed layers.

It is preferable that the fabric printed material according to the present invention satisfies formula 3 shown below.

The standard deviation SD _c in Equation 3 is the standard deviation of the color difference (ΔE _cx ) obtained from Equation 1. The color difference (ΔE _cx ) in Equation 1 is expressed as L ^* a ^* b ^* color system coordinates (L ^* _cx , a ^* _cx , b ^* _cx ) and the average value of the 20 points (L ^* _cave. , a ^* _cave. , b ^* _cave. ) .

Further, the standard deviation SD _p in Equation 3 is the standard deviation of the color difference (ΔE _px ) obtained from Equation 2. The color difference (ΔE _px ) is determined by the L ^* a ^* b ^* color system coordinates (L ^* _py , a ^* _py , b ^* _py ) and the average value of the 20 points (L ^* _pave. , a ^* _pave. , b ^* _pave. ). In addition, when the first printed layer is composed of a plurality of printed layers, the color measurement is performed for the outermost first printed layer.

Formula 1:
ΔE _cx = [(L ^* _cx - L ^* _cave. ) ² + (a ^* _cx - a ^* _cave. ) ² + (b ^* _cx - b ^* _cave. ) ² ] ^1/2
However, x represents each measurement point.

Formula 2:
ΔE _py = [(L ^* _py - L ^* _pave. ) ² + (a ^* _py - a ^* _pave. ) ² + (b ^* _py - b ^* _pave. ) ² ] ^1/2
However, y represents each measurement point.

Formula 3:
SD _c > SD _p

When the first printed layer satisfies Equation 3, a fabric made of fibers of multiple colors and with large color unevenness will appear to have less color unevenness due to the presence of the first printed layer. Therefore, the visual information printed on the fabric It is preferable that formula 3 is satisfied because it is possible to visually recognize the image satisfactorily. Note that SD _c is preferably in the range of 0.3<SD _c <5. SD _p is preferably smaller than 0.3, more preferably 0.2 or less.

Moreover, it is preferable that the first printing layer contains a polyester resin. Polyester resin has good adhesion to polyester fibers. Providing the first printed layer directly on the fabric provides good adhesion and is resistant to fabric friction and damage caused by washing. Furthermore, if the first printed layer is crosslinked with a hardening agent or the like, the resistance of the fabric to damage caused by friction and washing is further improved. There are no restrictions on the curing agent contained in the first printing layer, but isocyanate compounds are preferably used. By crosslinking, the isocyanate compound can form a crosslinked structure with crosslinked urethane bonds and/or urea bonds, thereby enhancing the durability of the printed layer.

As the pigment contained in the first printing layer, inorganic pigments such as carbon black and titanium dioxide, and organic pigments containing organic compounds can be used.

<Second printing layer>
Next, the fabric printed material according to the present invention has a second printed layer containing visual information. The second printing layer is a printing layer provided entirely or partially on the first printing layer. Further, the second printed layer may be composed of a plurality of layers as long as visual information is included.

In the present invention, it is preferable that the color difference (ΔE ₁₂ ) satisfies Expression 4 shown below. Here, (L ^* ₁ , a ^* ₁ , b ^* ₁ ) is the average value of the L ^* a ^* b ^* color system coordinates measured at three randomly selected points where the fabric and the first printed layer are present. It is. In addition, (L ^* ₂ , a ^* ₂ , b ^* ₂ ) is the L ^* a ^* b ^* color representation obtained by measuring the color at three randomly selected points where the fabric, the first printed layer, and the second printed layer are present. This is the average value of the system coordinates.
Formula 4:
ΔE ₁₂ = [(L ^* ₁ - L ^* ₂ ) ² + (a ^* ₁ - a ^* ₂ ) ² + (b ^* ₁ - b ^* ₂ ) ² ] ^1/2 > 15
When the second printing layer satisfies formula 4, visual information in the obtained fabric print can be clearly recognized. Note that, in order to further improve visibility, ΔE ₁₂ is preferably 30 or more.

Moreover, it is preferable that the second printing layer contains a polyester resin. The polyester resin has good adhesion with the polyester resin preferably contained in the first printing layer, and has resistance to damage caused by friction and washing. Furthermore, by including a curing agent in the second printing layer, the resistance of the fabric to damage caused by friction and washing is further improved. Note that it is preferable that the polyester resin contained in the second printed layer and the polyester resin contained in the first printed layer have the same structural unit. Having the same structural units improves the adhesion between the layers and also provides resistance to damage caused by friction and washing. Furthermore, if the second printed layer is crosslinked with a hardening agent or the like, the resistance of the fabric to damage caused by friction and washing is further improved. There are no restrictions on the curing agent contained in the second printing layer, but isocyanate compounds are preferably used. By crosslinking, the isocyanate compound can form a crosslinked structure with urethane bonds and/or urea bonds, thereby enhancing the durability of the printed layer.

Furthermore, it is preferable that the second printing layer contains a pigment. Specifically, inorganic pigments such as carbon black and titanium dioxide, and organic pigments containing organic compounds can be used. However, the pigment contained in the second printed layer is preferably a pigment of a different color from the pigment contained in the first printed layer.

Note that it is preferable that the OD value of the first printed layer or the second printed layer is 1.2 or more. When the OD value of the printed layer is 1.2 or more, the contrast with the fabric and/or other printed layers becomes clear.

<Manufacturing method for fabric printed matter>
Next, a method for manufacturing a fabric printed matter according to the present invention will be explained.

The fabric printing part according to the present invention can be manufactured by printing a first printing layer on a fabric and then printing a second printing layer containing visual information on the first printing. The first printed layer is printed over a larger area than the visual information of the second printed layer. Each printing layer can be formed by screen printing, inkjet printing, sublimation transfer printing, or pad printing. The first printing layer may be ink stamp printing in which a transfer material such as porous rubber or sponge is contacted with an ink reservoir to deposit ink, and the transfer material is contacted with a substrate. Pad printing is preferably used because the printing speed is faster than other methods and prints without bleeding can be produced by adjusting the drying speed of the ink.

Pad printing is a type of offset printing and usually includes the following steps.
(i) Place ink on the surface of an intaglio printing plate.
(ii) Scrape with a metal doctor blade. Alternatively, ink is poured into a ring-shaped ink cup with a ceramic or special metal edge that acts as a doctor blade, and the plate is scraped with the ink cup. As a result, the recesses of the intaglio printing plate are filled with ink.
(iii) Contacting the intaglio printing plate with a flexible pad such as silicone rubber. As a result, the ink is transferred to the surface of the pad.
(iv) The surface of the pad to which the ink is attached is pressed against the printing object to transfer the ink to the printing object.

Intaglio printing plates used in pad printing include (a) a metal printing plate made by etching carbon steel, etc., (b) a resin printing plate in which concave portions are formed by laser engraving a resin layer containing resin and pigment, Alternatively, (c) a resin printing plate in which recesses are formed in a photosensitive resin layer by exposure and development can be used, but the invention is not limited thereto.

Among these, a printing plate formed from a photosensitive resin layer is preferable because it can provide a printed matter with high accuracy of the line width of the recesses and high reproducibility and good visibility with respect to the original image. The photosensitive resin layer used in such a resin printing plate is preferably formed from a photosensitive resin composition containing at least a binder polymer, a compound having an ethylenic double bond, and a photopolymerization initiator. As a printing plate material having such a photosensitive resin layer, PU52LR (manufactured by Toray Industries, Inc.) and the like are known.

Note that it is preferable that halftone dots, which are small protrusions, exist in the concave portions of the printing plate. By having halftone dots in the recessed portions, uneven scraping of ink can be prevented when ink is placed on the plate surface of the intaglio printing plate and scraped off with a metal doctor blade. Therefore, it becomes possible to form a printed layer of uniform color.

Further, it is preferable that the height difference between the top of the halftone dot provided in the recess of the printing plate and the deepest part of the recess is 40 to 120 μm. By having a thickness of 40 μm or more, a printing layer with sufficient density can be formed, and by having a thickness of 120 μm or less, when pad printing is performed on a fabric, the amount of ink transferred to the fabric is not too large and the back side of the fabric can be formed. This can prevent ink from setting off.

Hereinafter, the present invention will be explained in detail with reference to Examples.

[Evaluation method]
(1) Color measurement method for fabric and printed layer Color measurement for the fabric and printed layer was performed using SpectroEye (manufactured by X-rite). The color system coordinates of the fabric and the color system coordinates of the first printed layer printed on the fabric were measured at 20 points at 7 mm intervals. Standard deviations SD _c and SD _p were determined from the values.

The color difference ΔE ₁₂ between the first printed layer printed on the fabric and the second printed layer printed on the fabric was determined using SpectroEye (manufactured by X-rite) at three points on the first printed layer on the fabric. were randomly selected and measured. In addition, three points on the fabric and the second printed layer on the first printed layer were randomly selected and the colors were measured. The average value of L ^* a ^* b ^* color system coordinates (L ^* ₁ , a ^* ₁ , b ^* ₁ ) and the average value of L ^* a ^* b ^* color system coordinates (L ^* ₂ , a ^* ₂ , b ^* ₂ ) using equation 4.
Furthermore, the OD value was measured using SpectroEye (manufactured by X-rite). The white standard for the OD value was MACBETH CALIBRATION REFERENCE K1277D white, and the OD value of the printed layer printed on the fabric was measured.

(2) Visibility of visual information The visibility of visual information printed on the fabric was visually confirmed by five judges. The judge had a binocular visual acuity of 0.7 or higher including corrected visual acuity, and the distance between the sample and the eyes was 50 cm. Each judge read the 12 characters printed on the fabric, and if they could read all of them, they were considered able to visually recognize them. The criteria for judgment are as follows.
A: 5 people could be seen B: 3 to 4 people could be seen C: 0 to 2 people could be seen.

(3) Ink set-off The ink set-off of the printed layer printed on the fabric was visually confirmed. The judgment criteria are as follows.
A: None B: Yes.

Example 1:
(1) Preparation of intaglio printing plate A cover film made of polyester film is peeled off from a 7 cm x 14 cm photosensitive resin printing plate precursor PU52LR, a positive film on which a 3 cm x 3 cm solid image has been formed is vacuum-adhered, and a chemical Exposure (first exposure) was carried out using a 20 watt FL20SBL-360 lamp (manufactured by Mitsubishi Electric Osram Co., Ltd.) under conditions such that the gray scale sensitivity was 11±1 step. Next, the vacuum-adhered positive film (screen film) was peeled off, and a negative film on which 95% halftone dots of 250 lines were formed was vacuum-adhered and exposed under the same conditions as the main exposure (second exposure). Thereafter, after peeling off the vacuum-adhered positive film, it was developed for 1 minute with an ethanol aqueous solution (ethanol/water = 80/20 (mass ratio)) at a liquid temperature of 25°C using a brush developing device, and then dried for 10 minutes at 60°C. . Further, post-exposure was performed using a chemical lamp FL20SBL-360 20 Watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under the same conditions as the main exposure, and the height difference between the plate surface and the deepest part of the halftone dots provided in the recesses was 90 μm. I got version 1. The height difference at the deepest point between the plate surface and the halftone dots provided in the recesses was determined by measuring with a laser microscope "VK-X200" (manufactured by Keyence Corporation) at a lens magnification of 250 times.

Next, only the cover film, which is a polyester film, was peeled off from a new 7 cm x 14 cm photosensitive resin printing plate precursor PU52LR, and a visual guide was written on a 2 cm x 2 cm area with instructions on how to handle it during washing in 5 pt size letters. The positive film containing information was vacuum-adhered and exposed to light using a chemical lamp FL20SBL-360 20 watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under conditions such that the gray scale sensitivity was 11±1 steps (first exposure). Next, the vacuum-adhesive positive film was peeled off, and a 250-line 95% negative film was vacuum-adhered and exposed under the same conditions as the first exposure (second exposure). Thereafter, after peeling off the vacuum-adhered positive film, it was developed for 1 minute with an ethanol aqueous solution (ethanol/water = 80/20 (mass ratio)) at a liquid temperature of 25°C using a brush developing device, and then dried for 10 minutes at 60°C. . Further, post-exposure was performed using a chemical lamp FL20SBL-360 20 watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under the same conditions as the first exposure, and the height difference at the deepest part between the halftone dots provided on the plate surface and the recess was 90 μm. Intaglio printing plate 2 was obtained.

(2) Production of printed matter The intaglio printing plate 1 was mounted on a hermetic 6-12 universal (manufactured by TAMPOPRINT, pad printing machine), and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 1 was transferred to a pad, and a first printing layer was printed on a heathered fabric made of fibers of multiple colors shown in Table 1. Subsequently, the intaglio printing plate 2 was mounted on a pad printing machine, and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 2 was transferred to a pad, and a second printing layer was printed on the first printing layer. As a result of evaluating the thus obtained printed matter using the above-mentioned evaluation method, it was possible to obtain a printed matter with good visibility of visual information. The evaluation results are shown in Table 1. For reference, a photograph of the printed matter is shown in Figure 1.

Example 2: When printing the second printing layer, a curing agent HARDENER N. A printed matter was produced in the same manner as in Example 1, except that an ink containing 3 g of No. 2 (manufactured by EPTA) was used.

Example 3:
(1) Preparation of intaglio printing plate Only the polyester film of the cover film was peeled off from a 7cm x 14cm photosensitive resin printing plate precursor PU52LR, and a positive film of 2cm x 2cm size with washing care information written on it was made into a 2cm x 2cm size. The film was brought into close contact with vacuum and exposed to light using a chemical lamp FL20SBL-360 of 20 watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under conditions such that the gray scale sensitivity was 11±1 step (first exposure). Next, the vacuum-adhesive positive film was peeled off, and a 350 line 75% negative film was vacuum-adhered and exposed under the same conditions as the main exposure (second exposure). Thereafter, after peeling off the vacuum-adhered positive film, it was developed for 1 minute with an ethanol aqueous solution (ethanol/water = 80/20 (mass ratio)) at a liquid temperature of 25°C using a brush developing device, and then dried for 10 minutes at 60°C. . Further, post-exposure was performed using a chemical lamp FL20SBL-360 20 Watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under the same conditions as the main exposure, and the height difference at the deepest part between the plate surface and the halftone dots provided in the recesses was 40 μm. An intaglio printing plate 3 was obtained.

(2) Production of printed matter The intaglio printing plate 1 was mounted on a hermetic 6-12 universal (manufactured by TAMPOPRINT, pad printing machine), and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 1 was transferred to a pad, and a first printing layer was printed on a heathered fabric made of fibers of multiple colors shown in Table 1. Subsequently, the intaglio printing plate 3 was mounted on a pad printing machine, and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 3 was transferred to a pad, and a second printing layer was printed on the first printing layer. As a result of evaluating the thus obtained printed matter using the above-mentioned evaluation method, it was possible to obtain a printed matter in which visual information was visible.

Example 4:
(1) Preparation of intaglio printing plate The polyester film of the cover film was peeled off from the 7 cm x 14 cm photosensitive resin printing plate precursor PU52LR, and the positive film on which the 3 cm x 3 cm solid image was formed was vacuum-adhered, and the chemical lamp FL20SBL was used. -360 20 Watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) and exposed under conditions such that the gray scale sensitivity was 11±1 step (first exposure). Next, the vacuum-adhered positive film (screen film) was peeled off, a 150-line 95% negative film was vacuum-adhered, and the film was exposed under the same conditions as the main exposure (second exposure). Thereafter, after peeling off the vacuum-adhered positive film, it was developed for 1 minute with an ethanol aqueous solution (ethanol/water = 80/20 (mass ratio)) at a liquid temperature of 25°C using a brush developing device, and then dried for 10 minutes at 60°C. . Furthermore, the intaglio printing plate 4 was subjected to post-exposure using a chemical lamp FL20SBL-360 20 watts (manufactured by Mitsubishi Electric Osram Co., Ltd.) under the same conditions as the main exposure, and the height difference between the top of the halftone dot and the deepest part of the recess was 120 μm. Obtained.

(2) Production of printed matter The intaglio printing plate 1 was mounted on a hermetic 6-12 universal (manufactured by TAMPOPRINT, pad printing machine), and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 1 was transferred to a pad, and a first printing layer was printed on a heathered fabric made of fibers of multiple colors shown in Table 1. Subsequently, the intaglio printing plate 4 was mounted on a pad printing machine, and a hardening agent HARDENER N. A squeegee was applied once using an ink containing 3 g of No. 2 (manufactured by EPTA). Thereafter, the intaglio printing plate 4 was transferred to the pad, and a second printing layer was printed on the first printing layer. As a result of evaluating the thus obtained printed matter using the above-mentioned evaluation method, it was possible to obtain a printed matter with good visibility of visual information, but the ink was set off on the back side of the fabric.

Comparative example 1
Intaglio printing plate 2 was mounted on a pad printing machine on the fabric shown in Table 1, and 20 g of URETHANE2502 EO BLACK (manufactured by EPTA) was coated with hardener HARDENER N. Using an ink containing 3 g of No. 2 (manufactured by EPTA), printing was performed by squeegeeing once and transferring to a pad. This printed matter does not have the first printed layer as defined in the present invention. Visual information could not be visually recognized in the obtained printed matter. For reference, a photograph of the fabric print is shown in Figure 2.

1 First printed layer 2 Fabric 3 Second printed layer 4 Fabric 5 Second printed layer

Claims (14)

A fabric printed material having a fabric, a first printed layer, and a second printed layer containing visual information in this order, wherein the fabric is a heathered fabric, and the first printed layer contains carbon black,
L ^* a ^* b ^* color system coordinates (L ^* _cx , a ^* _cx , b ^* _cx ) of multiple measurement points where the color of the fabric was measured and the average value (L ^* _cave. , a ^* _cave. , b) ^* _cave. ) and the standard deviation SD _c of the color difference (ΔE _cx ) of each measurement point , which is obtained from the following formula 1.
L ^* a ^* b ^* color system coordinates (L ^* _py , a ^* _py , b ^* _py ) of multiple measurement points of the first printed layer and their average value (L ^* _pave. , a ^* _{pave) .} , b ^* _pave. ) and the standard deviation SD _p of the color difference (ΔE _px ) of each measurement point obtained using equation 2 is
A fabric printed material that satisfies formula 3.
Formula 1:
ΔE _cx = [(L ^* _cx - L ^* _cave. ) ² + (a ^* _cx - a ^* _cave. ) ² + (b ^* _cx - b ^* _cave. ) ² ] ^1/2
However, x represents each measurement point.
Formula 2:
ΔE _py = [(L ^* _py - L ^* _pave. ) ² + (a ^* _py - a ^* _pave. ) ² + (b ^* _py - b ^* _pave. ) ² ] ^1/2
However, y represents each measurement point.
Formula 3:
SD _c > SD _p The average value (L ^* ₁ , a ^* ₁ , b ^* ₁ ) of the color system coordinates measured for the first printed layer and the L ^* a ^* b ^* color system coordinates measured for the second printed layer. The fabric printed matter according to claim 1, wherein the color difference (ΔE ₁₂ ) calculated from the average value (L ^* ₂ , a ^* ₂ , b ^* ₂ ) satisfies Equation 4.
Formula 4:
ΔE ₁₂ = [(L ^* ₁ - L ^* ₂ ) ² + (a ^* ₁ - a ^* ₂ ) ² + (b ^* ₁ - b ^* ₂ ) ² ] ^1/2 > 15 The fabric printed material according to claim 1 or 2, wherein the fibers constituting the fabric include fibers of multiple colors. The fabric printed material according to any one of claims 1 to 3 , wherein the fabric is selected from knitted fabrics, woven fabrics, and nonwoven fabrics. The fabric printed material according to any one of claims 1 to 4 , wherein the first printed layer or the second printed layer has an OD value of 1.2 or more. The fabric printed material according to any one of claims 1 to 5 , wherein the fabric contains polyester fibers. The fabric printed material according to claim 6 , wherein the fabric contains cationically dyeable polyester. The fabric printed material according to any one of claims 1 to 7 , wherein the first printing layer and/or the second printing layer contains a polyester resin. The fabric printed material according to any one of claims 1 to 8 , wherein the first printed layer and/or the second printed layer contain crosslinked urethane bonds and/or urea bonds. The fabric printed material according to any one of claims 1 to 9 , wherein the visual information includes at least one of a quality display, a handling method display, a manufacturing lot number, and a matrix type two-dimensional code. 11. The method for producing a fabric printed matter according to claim 1, wherein the first printing layer and/or the second printing layer are printed by pad printing. The method for producing a fabric printed matter according to claim 11 , which uses a resin printing plate. 13. The method for producing a fabric printed matter according to claim 12 , wherein an intaglio printing plate having halftone dots in the concave portions of the resin printing plate is used. 14. The method for producing a fabric printed matter according to claim 12 or 13 , wherein the height difference between the surface of the resin printing plate and the deepest part of the halftone dots provided in the recesses is 40 to 120 μm.