Digital printing product and printing method

Abstract

The invention relates to the technical field of digital printing, and discloses a digital printing product and a printing method.The digital printing product comprises a printing stock, a first white ink layer and a first gloss oil layer which are sequentially arranged in a stacked mode from bottom to top; a first shimmering powder layer and a first color ink layer are also arranged between the first white ink layer and the first gloss oil layer; wherein the first shimmering powder layer is positioned above the first color ink layer; or the first color ink layer is positioned above the first shimmering powder layer. According to the digital printing product and the printing method, the visual angle effect of the product can be real, and therefore the quality of the product is effectively guaranteed.

Description

Technical Field

[0001] The present application relates to the field of digital printing technology, and in particular to a digital printing product and a printing method. Background Art

[0002] Digital printing products are widely used in daily life. However, due to the different types and colors of substrates or problems with the printing process, existing digital printing products have poor overall visual effects and affect product quality. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a digital printing product and a printing method to improve the visual effect of the product and ensure the quality of the product.

[0004] The technical solution adopted by this application to solve its technical problem is:

[0005] A digital printing product, comprising a substrate, a first white ink layer and a first varnish layer stacked in sequence from bottom to top, the substrate being an opaque material, and a first glitter layer and a first color ink layer being provided between the first white ink layer and the first varnish layer;

[0006] Wherein, the first glitter layer is located above the first color ink layer; or the first color ink layer is located above the first glitter layer.

[0007] A digital printing product, comprising a substrate, a second white ink layer, a second varnish layer, a first transfer layer and a third varnish layer stacked in sequence from bottom to top, wherein the substrate is made of an opaque material;

[0008] Wherein, a second color ink layer is provided between the first transfer layer and the third varnish layer;

[0009] or a fourth varnish layer, a second glitter layer, a third color ink layer and a third glitter layer are sequentially stacked between the first transfer layer and the third varnish layer;

[0010] or a fifth varnish layer, a fourth glitter layer and a fourth color ink layer are sequentially stacked between the first transfer layer and the third varnish layer;

[0011] Or a fifth color ink layer and a fifth glitter layer are sequentially stacked between the first transfer layer and the third varnish layer.

[0012] A digital printing product comprises a printing substrate, a sixth color ink layer and a sixth varnish layer which are stacked in sequence from bottom to top, wherein the printing substrate is made of an opaque material.

[0013] Preferably, a seventh varnish layer and a sixth glitter layer are sequentially stacked between the substrate and the sixth color ink layer;

[0014] Or a seventh glitter powder layer is further provided between the sixth color ink layer and the sixth varnish layer.

[0015] A digital printing product, comprising a substrate, an eighth varnish layer, a second transfer layer and a ninth varnish layer stacked in sequence from bottom to top, wherein the substrate is made of an opaque material;

[0016] Wherein, a seventh color ink layer is provided between the second transfer layer and the ninth varnish layer;

[0017] or a tenth varnish layer, an eighth glitter layer, an eighth color ink layer and a ninth glitter layer are sequentially stacked between the second transfer layer and the ninth varnish layer;

[0018] or an eleventh varnish layer, a tenth glitter layer and a ninth color ink layer are sequentially stacked between the second transfer layer and the ninth varnish layer;

[0019] Or a tenth color ink layer and an eleventh glitter powder layer are sequentially stacked between the second transfer layer and the ninth varnish layer.

[0020] A digital printing method is used to print the above-mentioned digital printing product, and the printing method comprises the following steps:

[0021] Spraying white ink on a substrate to form a first white ink layer;

[0022] Spraying powder on the substrate to form a first glitter layer;

[0023] The inkjet system sprays the pigment ink onto the substrate for printing to form a first color ink layer;

[0024] Spray varnish on the substrate and perform UV curing to obtain the first varnish layer;

[0025] The printing order of forming the first glitter layer and forming the first color ink layer can be exchanged.

[0026] A digital printing method is used to print the above-mentioned digital printing product, and the printing method comprises the following steps:

[0027] Printing white ink on the substrate to form a second white ink layer;

[0028] Spraying transfer varnish on the substrate and curing it to form a second varnish layer;

[0029] Transferring the substrate to obtain a first transfer layer;

[0030] Spray varnish on the substrate and perform UV curing to form a third varnish layer;

[0031] Wherein, after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps:

[0032] The inkjet system sprays the pigment ink onto the substrate for printing to form a second color ink layer;

[0033] Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps:

[0034] Spraying varnish on the substrate and performing powder spraying to obtain a fourth varnish layer and a second glitter layer respectively;

[0035] The inkjet system sprays the pigment ink onto the substrate for printing to form a third color ink layer;

[0036] Spraying powder on the substrate to form a third glitter layer;

[0037] Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps:

[0038] Spraying varnish on the substrate and performing powder spraying to obtain a fifth varnish layer and a fourth glitter layer respectively;

[0039] The inkjet system sprays the pigment ink onto the substrate for printing to form a fourth color ink layer;

[0040] Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps:

[0041] The inkjet system sprays the pigment ink onto the substrate for printing to form a fifth color ink layer;

[0042] Powder is sprayed on the substrate to form a fifth glitter layer.

[0043] A digital printing method is used to print the above-mentioned digital printing product, and the printing method comprises the following steps:

[0044] The inkjet system sprays the color ink onto the substrate for printing to form a sixth color ink layer;

[0045] Varnish is sprayed on the substrate and UV cured to form a sixth varnish layer.

[0046] Preferably, before obtaining the sixth color ink layer, the method further includes the following steps:

[0047] Spraying varnish on the substrate and performing powder spraying to obtain a seventh varnish layer and a sixth glitter layer respectively;

[0048] Or after obtaining the sixth color ink layer, the substrate needs to be sprayed with powder to form a seventh glitter powder layer.

[0049] A digital printing method is used to print the above-mentioned digital printing product, and the printing method comprises the following steps:

[0050] Spraying transfer varnish on the substrate and curing it to form an eighth varnish layer;

[0051] Transferring the substrate to form a second transfer layer;

[0052] Spraying varnish on the substrate and performing UV curing to form a ninth varnish layer;

[0053] Wherein, after obtaining the second transfer layer and before obtaining the ninth varnish layer, the method further includes the following steps:

[0054] The inkjet system sprays the pigment ink onto the substrate for printing to form a seventh color ink layer;

[0055] Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer:

[0056] Spraying varnish on the substrate and performing powder spraying to obtain a tenth varnish layer and an eighth glitter layer respectively;

[0057] The inkjet system sprays the pigment ink onto the substrate for printing to form an eighth color ink layer;

[0058] Spraying powder on the substrate to form a ninth glitter layer;

[0059] Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer:

[0060] Spraying varnish on the substrate and performing powder spraying to obtain an eleventh varnish layer and a tenth glitter layer respectively;

[0061] The inkjet system sprays the pigment ink onto the substrate for printing to form a ninth color ink layer;

[0062] Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer:

[0063] The inkjet system sprays the pigment ink onto the substrate for printing to form a tenth color ink layer;

[0064] Spray powder on the substrate to form the eleventh glitter layer.

[0065] Compared with the prior art, a digital printing product and printing method according to an embodiment of the present invention have the beneficial effect that by printing a white ink layer on a substrate and then printing a corresponding pattern and spraying powder, the visual effect of the product can be made realistic, thereby effectively ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is a structural schematic diagram of a first embodiment of a digital printing product of the present invention.

[0067] Figure 2 It is a structural schematic diagram of a second embodiment of a digital printing product of the present invention.

[0068] Figure 3 This is a structural schematic diagram of a third embodiment of a digital printing product of the present invention.

[0069] Figure 4 It is a structural schematic diagram of a fourth embodiment of a digital printing product of the present invention.

[0070] Figure 5 This is a structural schematic diagram of a fifth embodiment of a digital printing product of the present invention.

[0071] Figure 6 This is a structural schematic diagram of a sixth embodiment of a digital printing product of the present invention.

[0072] Figure 7 This is a structural schematic diagram of a seventh embodiment of a digital printing product of the present invention.

[0073] Figure 8 This is a structural schematic diagram of an eighth embodiment of a digital printing product of the present invention.

[0074] Fig. 9 It is a structural schematic diagram of a ninth embodiment of a digital printing product of the present invention.

[0075] Fig.10 It is a structural schematic diagram of the tenth embodiment of the digital printing product of the present invention.

[0076] Fig.11 It is a structural schematic diagram of the digital printing product embodiment 11 of the present invention.

[0077] Fig.12 It is a structural schematic diagram of a twelfth embodiment of a digital printing product of the present invention.

[0078] Fig.13 It is a structural schematic diagram of a thirteenth embodiment of a digital printing product of the present invention.

[0079] Among them, 1-substrate, 2-first white ink layer, 3-first varnish layer, 4-first glitter layer, 5-first color ink layer, 6-second white ink layer, 7-second varnish layer, 8-first transfer layer, 9-third varnish layer, 10-second color ink layer, 11-fourth varnish layer, 12-second glitter layer, 13-third color ink layer, 14-third glitter layer, 15-fifth varnish layer, 16-fourth glitter layer, 17-fourth color ink layer, 18-fifth color ink layer, 19-fifth glitter layer, 2 0-sixth color ink layer, 21-sixth varnish layer, 22-seventh varnish layer, 23-sixth glitter layer, 24-seventh glitter layer, 25-eighth varnish layer, 26-second transfer layer, 27-ninth varnish layer, 28-seventh color ink layer, 29-tenth varnish layer, 30-eighth glitter layer, 31-eighth color ink layer, 32-ninth glitter layer, 33-eleventh varnish layer, 34-tenth glitter layer, 35-ninth color ink layer, 36-tenth color ink layer, 37-eleventh glitter layer. DETAILED DESCRIPTION

[0080] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0081] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0082] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0083] The digital printing products of the present application are all products whose substrate 1 is an opaque material, such as the substrate 1 is paper, plastic, metal, ceramic, leather, wood, electronic product housing, stationery, clothing, etc.

[0084] The products of this application are divided into two categories. One category is that the color difference between the printed pattern and the substrate is small. Printing the pattern directly on the substrate will lead to poor overall visual effect of the pattern. In this case, white ink can be sprayed on the substrate first, and then the pattern can be printed to ensure the overall viewing effect of the product. The other category is that the pattern is printed directly on the substrate, which does not affect the overall viewing effect, so there is no need to spray white ink on the substrate. Specifically:

[0085] Products that require a white ink layer to be printed on the substrate include the following:

[0086] Embodiment 1

[0087] like Figure 1 As shown, the product includes a substrate 1, a first white ink layer 2, a first glitter layer 4, a first color ink layer 5 and a first varnish layer 3 which are stacked in sequence from bottom to top.

[0088] The printing method comprises the following steps:

[0089] Printing white ink on a substrate 1 to form a first white ink layer 2;

[0090] Spraying powder on the substrate 1 to form a first glitter layer 4;

[0091] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a first color ink layer 5;

[0092] Varnish is sprayed on the substrate 1 and UV-cured to obtain a first varnish layer 3 .

[0093] In the present application, the varnish layer, the glitter layer and the color ink layer can be printed by using two types of digital printing machines: multi-pass and one-pass. When multi-pass printing is used, the varnish layer can be formed by spraying varnish by a printing carriage; and when printing by a one-pass printing machine, a printing mechanism can be used for printing.

[0094] The powder spraying process is to sprinkle various optical powders and special functional powder granular materials such as glitter powder, sequin powder, fluorescent powder, fantasy powder, diamond powder, chameleon powder, ultraviolet color-changing powder, temperature color-changing powder, magnetic cat's eye powder on the surface or middle layer of the printed product inkjet varnish (UV resin, transfer glue, hot stamping varnish) and solidify and adhere. That is, after the printing is completed, the varnish is first printed on the substrate and solidified, and then the powder spraying is carried out.

[0095] The powder spraying is performed by a powder spraying mechanism. When a multi-pass printer is used for printing, the powder spraying mechanism is arranged on a printing carriage, and a printing mechanism for printing is arranged inside the printing carriage. The powder spraying mechanism is arranged on both sides of the printing carriage, and one or more powder spraying mechanisms are arranged on each side. When there are multiple powder spraying mechanisms, the multiple powder spraying mechanisms are distributed in a rectangular array. The multiple powder spraying mechanisms are all used to spray different glitter powders; or some of the powder spraying mechanisms are used to spray different glitter powders, and the other part of the powder spraying mechanisms are used to spray the same glitter powder.

[0096] In addition, magnetic powder can also be used. Since magnetic powder can change into different visual effects according to the change of different magnetic attraction directions of magnets, in order to diversify the printing powder spraying effect, the magnetic attraction mode of magnets should be changed in many ways. Magnetic optical powder can form a beautiful optical gradient effect by changing the attraction of magnetic field.

[0097] When using a multi-pass printing press, the inkjet printing pigment is carried out using a printing carriage, and the interior of the printing carriage is equipped with a printing mechanism for printing. When printing, the required graphics are first input into the computer, and after being edited and processed by the electronic color separation system, the computer controls the inkjet system to directly spray varnish or color ink onto the fabric for printing. Inkjet printing can be divided into two types according to the inkjet principle: continuous inkjet and on-demand inkjet.

[0098] 1. Continuous injection

[0099] The principle of continuous jetting is to apply high-frequency oscillation pressure to the ink so that the ink is ejected from the nozzle to form a uniform and continuous flow of micro-droplets. An electric field that changes synchronously with the graphic photoelectric conversion signal is set at the nozzle. The ejected droplets are selectively charged in the charging electric field. When the droplet flow continues to pass through the deflection electric field, the charged droplets are deflected under the action of the electric field, and the uncharged droplets continue to maintain a straight-line flight state. The droplets flying in a straight line cannot reach the substrate and are recovered by the liquid collector. The charged droplets are ejected onto the substrate to complete the printing.

[0100] 2. On-demand spraying

[0101] The working principle of the on-demand jet printing system is that when printing is required, the system applies high-frequency mechanical force and electromagnetic thermal shock to the ink in the nozzle, so that it forms tiny droplets that are ejected from the nozzle and are controlled by a computer to be ejected to the set pattern. The most widely used on-demand jet printing technology is thermal inkjet technology, which relies on thermal pulsation to generate ink droplets. A heating resistor wire is controlled by a computer to a specified temperature, causing the ink to be gasified (atomized) and then ejected from the nozzle. Another technology is the voltage jet system, which is controlled by a computer to impose a potential on the conductive material, causing the conductive material to compress in the direction of the electric field and expand in the vertical direction, thereby ejecting the ink.

[0102] Embodiment 2

[0103] like Figure 2 As shown, the product includes a substrate 1, a first white ink layer 2, a first color ink layer 5, a first glitter layer 4 and a first varnish layer 3 which are stacked in sequence from bottom to top.

[0104] The printing method comprises the following steps:

[0105] Printing white ink on a substrate 1 to form a first white ink layer 2;

[0106] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a first color ink layer 5;

[0107] Spraying powder on the substrate 1 to form a first glitter layer 4;

[0108] Varnish is sprayed on the substrate and UV-cured to obtain a first varnish layer 3 .

[0109] Embodiment 3

[0110] like Figure 3 As shown, the product includes a substrate 1, a second white ink layer 6, a second varnish layer 7, a first transfer layer 8, a second color ink layer 10 and a third varnish layer 9 which are stacked in sequence from bottom to top.

[0111] The printing method comprises the following steps:

[0112] Spraying white ink on the substrate 1 to form a second white ink layer 6;

[0113] Spraying transfer varnish on the substrate 1 and curing it to form a second varnish layer 7;

[0114] Transferring the substrate 1 to obtain a first transfer layer 8;

[0115] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a second color ink layer 10;

[0116] Varnish is sprayed on the substrate and UV cured to form a third varnish layer 9 .

[0117] The transfer process includes: first, printing transfer varnish (UV resin, transfer glue, hot stamping varnish) on the area of ​​the substrate 1 that needs to be transferred, and printing hot stamping varnish on the area that does not need to be transferred, and curing. The printing method adopts scanning inkjet printing, multi-pass printing or one-pass printing.

[0118] 2. Transfer the substrate 1.

[0119] In the present invention, the transfer material includes heat transfer hot stamping paper and electrochemical aluminum foil. The transfer material includes heat transfer hot stamping paper, electrochemical aluminum foil hot stamping paper, cloth hot stamping paper, PE, PET, PVC, PP and other material hot stamping paper. At the same time, there are many kinds of inks, such as water-based ink, UV ink, solvent ink and coating ink. Among them, water-based ink, coating ink and solvent ink all need a heating device. Heating can enhance its fluidity and coating performance, promote drying, accelerate the evaporation of ink water, and promote the drying time of ink on the medium. By heating, the adhesion between the ink and the printing material can be improved to ensure the printing quality. There are two types of transfer processes, namely thermal transfer and hot stamping. Among them, the thermal transfer process transfers the layer on the transfer film to the surface of the substrate by heating and pressurizing, which is realistic and beautiful, greatly improving the grade of the product. The hot stamping process uses the principle of hot pressure transfer to transfer the aluminum layer in the electrochemical aluminum foil to the surface of the substrate 1 to form a special metal effect. Specifically:

[0120] When the transfer is thermal transfer, the transfer film is heated by the transfer roller and pressed against the substrate 1;

[0121] Among them, the heating temperature of the transfer film is 80-200℃, such as 90℃, 100℃, 120℃, 160℃, 180℃, etc.; the transfer speed is 0.1-10 meters per minute, such as 0.2 meters, 0.6 meters, 1 meter, 2 meters, 3 meters, 5 meters, 8 meters, etc.; the transfer pressure is 1.8-2.2t, such as 1.9t, 2t, 2.1t, etc. Specific parameters can be selected according to actual conditions, but through experiments, it is found that when any one or two of the above temperature, speed and pressure parameters are not within the above range, a good transfer effect cannot be achieved. If the temperature or pressure does not reach the above range, the layer on the transfer film cannot be completely transferred to the substrate. When the temperature or pressure exceeds the above range, the transfer film and the substrate will stick together, affecting the product quality; if the speed exceeds the above range, the layer on the transfer film cannot be completely transferred to the substrate. When the speed is lower than the above range, it will affect the transfer humidity.

[0122] Therefore, when selecting, it is necessary to ensure that the temperature, speed and pressure meet the above ranges at the same time to ensure the best transfer effect.

[0123] When the transfer is hot stamping, the temperature of the anodized aluminum foil is 130°~160°, the hot stamping pressure is above 5t, and the hot stamping speed is 0.5~0.7 meters per minute. In actual production, it is also necessary to ensure that the temperature, speed and pressure meet the above ranges at the same time to ensure the best hot stamping effect.

[0124] Embodiment 4

[0125] like Figure 4As shown, the product includes a substrate 1, a second white ink layer 6, a second varnish layer 7, a first transfer layer 8, a fourth varnish layer 11, a second glitter layer 12, a third color ink layer 13, a third glitter layer 14 and a third varnish layer 9 which are stacked in sequence from bottom to top.

[0126] The printing method comprises the following steps:

[0127] Spraying white ink on the substrate 1 to form a second white ink layer 6;

[0128] Spraying transfer varnish on the substrate 1 and curing it to form a second varnish layer 7;

[0129] Transferring the substrate 1 to obtain a first transfer layer 8;

[0130] Spraying varnish on the substrate 1 and performing powder spraying to obtain a fourth varnish layer 11 and a second glitter layer 12 respectively;

[0131] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a third color ink layer 13;

[0132] Spraying powder on the substrate 1 to form a third glitter layer 14;

[0133] Varnish is sprayed on the substrate and UV cured to form a third varnish layer 9 .

[0134] Embodiment 5

[0135] like Figure 5 As shown, the product includes a substrate 1, a second white ink layer 6, a second varnish layer 7, a first transfer layer 8, a fifth varnish layer 15, a fourth glitter layer 16, a fourth color ink layer 17 and a third varnish layer 9 which are stacked in sequence from bottom to top.

[0136] The printing method comprises the following steps:

[0137] Spraying white ink on the substrate 1 to form a second white ink layer 6;

[0138] Spraying transfer varnish on the substrate 1 and curing it to form a second varnish layer 7;

[0139] Transferring the substrate 1 to obtain a first transfer layer 8;

[0140] Spraying varnish on the substrate and performing powder spraying to obtain a fifth varnish layer 15 and a fourth glitter layer 16 respectively;

[0141] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a fourth color ink layer 17;

[0142] Varnish is sprayed on the substrate 1 and UV-cured to form a third varnish layer 9 .

[0143] Embodiment 6

[0144] like Figure 6 As shown, the product includes a substrate 1, a second white ink layer 6, a second varnish layer 7, a first transfer layer 8, a fifth color ink layer 18, a fifth glitter layer 19 and a third varnish layer 9 which are stacked in sequence from bottom to top.

[0145] The printing method comprises the following steps:

[0146] Spraying white ink on the substrate 1 to form a second white ink layer 6;

[0147] Spraying transfer varnish on the substrate 1 and curing it to form a second varnish layer 7;

[0148] Transferring the substrate 1 to obtain a first transfer layer 8;

[0149] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a fifth color ink layer 18;

[0150] Spraying powder on the substrate 1 to form a fifth glitter layer 19;

[0151] Varnish is sprayed on the substrate 1 and UV-cured to form a third varnish layer 9 .

[0152] Products that do not require a white ink layer to be printed on the substrate include the following:

[0153] Embodiment 7

[0154] like Figure 7 As shown, the product includes a printing material 1, a sixth color ink layer 20 and a sixth varnish layer 21 which are stacked in sequence from bottom to top.

[0155] The printing method comprises the following steps:

[0156] The inkjet system sprays color ink onto the substrate 1 for printing to form a sixth color ink layer 20;

[0157] Varnish is spray-printed on the substrate 1 and UV-cured to form a sixth varnish layer 21 .

[0158] Embodiment 8

[0159] like Figure 8 As shown, the product includes a substrate 1, a seventh varnish layer 22, a sixth glitter layer 23, a sixth color ink layer 20 and a sixth varnish layer 21 which are stacked in sequence from bottom to top.

[0160] The printing method comprises the following steps:

[0161] Spraying varnish on the substrate 1 and performing powder spraying to form a seventh varnish layer 22 and a sixth glitter layer 23 respectively;

[0162] The inkjet system sprays color ink onto the substrate 1 for printing to form a sixth color ink layer 20;

[0163] Varnish is spray-printed on the substrate 1 and UV-cured to form a sixth varnish layer 21 .

[0164] Embodiment 9

[0165] like Fig. 9 As shown, the product includes a substrate 1, a sixth color ink layer 20, a seventh glitter layer 24 and a sixth varnish layer 21 which are stacked in sequence from bottom to top.

[0166] The printing method comprises the following steps:

[0167] The inkjet system sprays color ink onto the substrate 1 for printing to form a sixth color ink layer 20;

[0168] Spraying powder on the substrate 1 to form a seventh glitter layer 24;

[0169] Varnish is spray-printed on the substrate 1 and UV-cured to form a sixth varnish layer 21 .

[0170] Embodiment 10

[0171] like Fig.10 As shown, the product includes a substrate 1, an eighth varnish layer 25, a second transfer layer 26, a seventh color ink layer 28 and a ninth varnish layer 27 which are stacked in sequence from bottom to top.

[0172] The printing method comprises the following steps:

[0173] Spraying transfer varnish on the substrate 1 and curing it to form an eighth varnish layer 25;

[0174] Transferring the substrate 1 to obtain a second transfer layer 26;

[0175] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a seventh color ink layer 28;

[0176] Varnish is sprayed on the substrate 1 and UV-cured to form a ninth varnish layer 27 .

[0177] Embodiment 11

[0178] like Fig.11 As shown, the product includes a substrate 1, an eighth varnish layer 25, a second transfer layer 26, a tenth varnish layer 29, an eighth glitter layer 30, an eighth color ink layer 31, a ninth glitter layer 32 and a ninth varnish layer 27 which are stacked in sequence from bottom to top.

[0179] The printing method comprises the following steps:

[0180] Spraying transfer varnish on the substrate 1 and curing it to form an eighth varnish layer 25;

[0181] Transferring the substrate 1 to obtain a second transfer layer 26;

[0182] Spraying varnish on the substrate 1 and performing powder spraying to form a tenth varnish layer 29 and an eighth glitter layer 30 respectively;

[0183] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form an eighth color ink layer 31;

[0184] Spraying powder on the substrate 1 to form a ninth glitter layer 32;

[0185] Varnish is sprayed on the substrate 1 and UV-cured to form a ninth varnish layer 27 .

[0186] Embodiment 12

[0187] like Fig.12 As shown, the product includes a substrate 1, an eighth varnish layer 25, a second transfer layer 26, an eleventh varnish layer 33, a tenth glitter layer 34, a ninth color ink layer 35 and a ninth varnish layer 27 which are stacked in sequence from bottom to top.

[0188] The printing method comprises the following steps:

[0189] Spraying transfer varnish on the substrate 1 and curing it to form an eighth varnish layer 25;

[0190] Transferring the substrate 1 to obtain a second transfer layer 26;

[0191] Spraying varnish on the substrate 1 and performing powder spraying to obtain an eleventh varnish layer 33 and a tenth glitter layer 34 respectively;

[0192] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a ninth color ink layer 35;

[0193] Varnish is sprayed on the substrate 1 and UV-cured to form a ninth varnish layer 27 .

[0194] Embodiment 13

[0195] like Fig.13 As shown, the product includes a substrate 1, an eighth varnish layer 25, a second transfer layer 26, a tenth color ink layer 36, an eleventh glitter layer 37 and a ninth varnish layer 27 which are stacked in sequence from bottom to top.

[0196] The printing method comprises the following steps:

[0197] Spraying transfer varnish on the substrate 1 and curing it to form an eighth varnish layer 25;

[0198] Transferring the substrate 1 to obtain a second transfer layer 26;

[0199] The inkjet system sprays the pigment ink onto the substrate 1 for printing to form a tenth color ink layer 36;

[0200] Spraying powder on the substrate 1 to form an eleventh glitter layer 37;

[0201] Varnish is sprayed on the substrate 1 and UV-cured to form a ninth varnish layer 27 .

[0202] In summary, this application can make the visual effect of the product realistic by printing a white ink layer on the substrate according to the type of substrate, and then printing the corresponding pattern and spraying powder, or directly printing the pattern on the substrate, thereby effectively ensuring the quality of the product.

[0203] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A digital printing product, characterized in that: It comprises a substrate, a first white ink layer and a first varnish layer stacked in sequence from bottom to top, the substrate is an opaque material, and a first glitter layer and a first color ink layer are provided between the first white ink layer and the first varnish layer; Wherein, the first glitter layer is located above the first color ink layer; or the first color ink layer is located above the first glitter layer.

2. A digital printing product, characterized in that: It includes a printing substrate, a second white ink layer, a second varnish layer, a first transfer layer and a third varnish layer which are stacked in sequence from bottom to top, wherein the printing substrate is made of an opaque material; Wherein, a second color ink layer is provided between the first transfer layer and the third varnish layer; or a fourth varnish layer, a second glitter layer, a third color ink layer and a third glitter layer are sequentially stacked between the first transfer layer and the third varnish layer; or a fifth varnish layer, a fourth glitter layer and a fourth color ink layer are sequentially stacked between the first transfer layer and the third varnish layer; Or a fifth color ink layer and a fifth glitter layer are sequentially stacked between the first transfer layer and the third varnish layer.

3. A digital printing product, characterized in that: The printing substrate comprises a printing material, a sixth color ink layer and a sixth varnish layer which are stacked in sequence from bottom to top, and the printing material is made of an opaque material.

4. The digital printing product according to claim 3, characterized in that: A seventh varnish layer and a sixth glitter layer are stacked in sequence between the substrate and the sixth color ink layer; Or a seventh glitter powder layer is further provided between the sixth color ink layer and the sixth varnish layer.

5. A digital printing product, characterized in that: It includes a printing substrate, an eighth varnish layer, a second transfer layer and a ninth varnish layer stacked in sequence from bottom to top, wherein the printing substrate is made of an opaque material; Wherein, a seventh color ink layer is provided between the second transfer layer and the ninth varnish layer; or a tenth varnish layer, an eighth glitter layer, an eighth color ink layer and a ninth glitter layer are sequentially stacked between the second transfer layer and the ninth varnish layer; or an eleventh varnish layer, a tenth glitter layer and a ninth color ink layer are sequentially stacked between the second transfer layer and the ninth varnish layer; Or a tenth color ink layer and an eleventh glitter powder layer are sequentially stacked between the second transfer layer and the ninth varnish layer.

6. A digital printing method, characterized in that: For printing the digital printed product of claim 1, the printing method comprises the following steps: Spraying white ink on a substrate to form a first white ink layer; Spraying powder on the substrate to form a first glitter layer; The inkjet system sprays the pigment ink onto the substrate for printing to form a first color ink layer; Spray varnish on the substrate and perform UV curing to obtain the first varnish layer; The printing order of forming the first glitter layer and forming the first color ink layer can be exchanged.

7. A digital printing method, characterized in that: For printing the digital printed product of claim 2, the printing method comprises the following steps: Printing white ink on the substrate to form a second white ink layer; Spraying transfer varnish on the substrate and curing it to form a second varnish layer; Transferring the substrate to obtain a first transfer layer; Spray varnish on the substrate and perform UV curing to form a third varnish layer; Wherein, after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps: The inkjet system sprays the pigment ink onto the substrate for printing to form a second color ink layer; Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps: Spraying varnish on the substrate and performing powder spraying to obtain a fourth varnish layer and a second glitter layer respectively; The inkjet system sprays the pigment ink onto the substrate for printing to form a third color ink layer; Spraying powder on the substrate to form a third glitter layer; Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps: Spraying varnish on the substrate and performing powder spraying to obtain a fifth varnish layer and a fourth glitter layer respectively; The inkjet system sprays the pigment ink onto the substrate for printing to form a fourth color ink layer; Or after obtaining the first transfer layer and before obtaining the third varnish layer, the method further includes the following steps: The inkjet system sprays the pigment ink onto the substrate for printing to form a fifth color ink layer; Powder is sprayed on the substrate to form a fifth glitter layer.

8. A digital printing method, characterized in that: For printing the digital printed product of claim 3, the printing method comprises the following steps: The inkjet system sprays the color ink onto the substrate for printing to form a sixth color ink layer; Varnish is sprayed on the substrate and UV cured to form a sixth varnish layer.

9. The digital printing method according to claim 8, characterized in that: Before obtaining the sixth color ink layer, the following steps are also included: Spraying varnish on the substrate and performing powder spraying to obtain a seventh varnish layer and a sixth glitter layer respectively; Or after obtaining the sixth color ink layer, the substrate needs to be sprayed with powder to form a seventh glitter powder layer.

10. A digital printing method, characterized in that: For printing the digital printed product of claim 5, the printing method comprises the following steps: Spraying transfer varnish on the substrate and curing it to form an eighth varnish layer; Transferring the substrate to form a second transfer layer; Spraying varnish on the substrate and performing UV curing to form a ninth varnish layer; Wherein, after obtaining the second transfer layer and before obtaining the ninth varnish layer, the method further includes the following steps: The inkjet system sprays the pigment ink onto the substrate for printing to form a seventh color ink layer; Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer: Spraying varnish on the substrate and performing powder spraying to obtain a tenth varnish layer and an eighth glitter layer respectively; The inkjet system sprays the pigment ink onto the substrate for printing to form an eighth color ink layer; Spraying powder on the substrate to form a ninth glitter layer; Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer: Spraying varnish on the substrate and performing powder spraying to obtain an eleventh varnish layer and a tenth glitter layer respectively; The inkjet system sprays the pigment ink onto the substrate for printing to form a ninth color ink layer; Or the method further comprises the following steps after obtaining the second transfer layer and before obtaining the ninth varnish layer: The inkjet system sprays the pigment ink onto the substrate for printing to form a tenth color ink layer; Spray powder on the substrate to form the eleventh glitter layer.

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