Technological method for achieving one-time gold stamping and heat transfer printing

Abstract

The invention provides a process method for achieving one-time gold stamping and heat transfer printing. The process method comprises the following steps that S1, hot melt adhesive ink and sublimation ink are loaded into an ink-jet printer with multiple nozzles at the same time; s2, the gold stamping transfer printing film to be printed is installed on an ink-jet printer; s3, through computer control, hot melt adhesive ink and sublimation ink are printed on the gold stamping transfer printing film at the same time according to a set pattern; s4, the gold stamping transfer printing film printed with the patterns in the step S3 is dried; s5, the gold stamping transfer printing film dried in the step S4 is attached to the fabric, and hot pressing treatment is carried out; s6, after cooling, removing the part, which is not adhered to the fabric, of the gold stamping transfer printing film, so as to obtain the colored printed fabric with the gold stamping effect; wherein the sublimation ink contains a styrene maleic anhydride copolymer, and the hot melt adhesive ink contains water-based hot-melt poly-carbon polyurethane. The whole technological process is completed at a time, and the whole production process is higher in efficiency, high in automation degree and convenient to operate.

Description

Technical Field

[0001] The invention relates to the field of textile printing and dyeing, and in particular to a process method for realizing one-time hot stamping and thermal transfer. Background Art

[0002] Textile printing includes color printing and special printing. Among them. Color printing refers to dye printing or pigment printing, which is to apply dyes or pigments that can dye textile fabrics to local parts of the surface of one side of the textile fabric by physical or chemical methods, and then through physical or chemical reactions, the dyes or pigments are deposited and have a certain bonding strength with the textile fabric fibers to form a local dyeing process of the textile. It often uses red, yellow, blue and black as the basic colors to mix and match various colors.

[0003] Special printing refers to applying some special materials to the surface of fabrics through screen printing, roller coating, hand-painting, transfer, electrostatic attraction, and even 3D printing, and finally forming three-dimensional special effects such as hot stamping, high solid, cracking, flash gold, rotten flowers, flocking, etc., which greatly increases the added value of fabrics. Among them, hot stamping is the most common process, and hot stamping various gold, silver, and laser interference effects on fabrics has been particularly popular in the market in recent years.

[0004] The above two types of printing are usually carried out separately. In the invention patent with the announcement number CN110641173A, a digital heat transfer positioning hot stamping method is disclosed, which includes first coating a layer of printing paste on the surface of the hot stamping foil, then printing the hot melt adhesive paste on the surface of the hot stamping foil coated with the printing paste, and after drying, printing the disperse dye ink on the hot stamping foil with the hot melt adhesive pattern on the surface, and finally laminating it with the polyester fabric to be printed, and hot pressing to obtain the printed fabric with positioning hot stamping. Although the above process shortens the production process compared with the traditional process, the hot stamping and coloring printing are still carried out in steps, and the hot melt adhesive is also involved in the separate drying process. The actual production process is still complicated, time-consuming and inefficient.

[0005] Therefore, how to achieve hot stamping and coloring printing at one time has become a difficult challenge in the current process. The inventors found through research that if hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time, due to the similar properties of hot melt adhesive ink and thermal sublimation ink, the two will bleed into each other when they come into contact, resulting in a problem of reduced pattern clarity. Summary of the invention

[0006] The purpose of the present invention is to provide a process method for achieving one-time hot stamping and thermal transfer, which is used to solve the problem of complex and low efficiency of the existing hot stamping and coloring printing production process, and solve the problem of mutual penetration of hot melt adhesive ink and thermal sublimation ink when printing simultaneously.

[0007] To achieve the purpose of the present invention, the present invention provides a process method for achieving one-time hot stamping and thermal transfer, which comprises the following steps: S1: simultaneously loading hot melt adhesive ink and thermal sublimation ink into a multi-nozzle inkjet printer; S2: installing a hot stamping transfer film to be printed on the inkjet printer; S3: simultaneously printing the hot melt adhesive ink and thermal sublimation ink on the hot stamping transfer film according to a set pattern; S4: drying the hot stamping transfer film on which the pattern is printed in step S3; S5: laminating the hot stamping transfer film dried in step S4 to a fabric and performing a hot pressing treatment; S6: removing the portion of the hot stamping transfer film not adhered to the fabric after cooling to obtain a colored printed fabric with a hot stamping effect; wherein the thermal sublimation ink contains styrene maleic anhydride copolymer, and the hot melt adhesive ink contains water-based hot melt polycarbonate polyurethane.

[0008] As can be seen from the above scheme, in the above process, hot melt adhesive ink and heat sublimation ink are printed on the hot stamping transfer film at the same time. In the subsequent hot pressing process, the heat sublimation ink is transferred to the fabric by heat sublimation from the hot stamping transfer film to form a colored printed pattern. The hot melt adhesive ink is heated and melted to have viscosity, and the hot stamping transfer film is adhered to the fabric surface to form a hot stamping pattern. The whole process is completed in one go, and the hot melt adhesive ink and the heat sublimation ink are printed at the same time, which further saves the printing time and makes the whole production process more efficient. The whole process can be realized by computer control, with a high degree of automation and easy operation. The heat sublimation ink of the present invention contains styrene maleic anhydride copolymer, and the styrene maleic anhydride copolymer contains carbonyl, which can improve the surface energy of the heat sublimation ink, help to enhance the interaction force between ink molecules, thereby reducing the disordered diffusion and penetration of the ink, and avoiding the penetration of the heat sublimation ink like the hot melt adhesive ink. At the same time, the hot melt adhesive ink of the present invention contains water-based hot melt polycarbon type polyurethane, which can form a film quickly on the hot stamping transfer film, further preventing the penetration of the heat sublimation ink. In addition, styrene maleic anhydride copolymer also has the technical effect of dispersing dyes and solving the problem of ink fluidity.

[0009] A further solution is that a step S41 is provided between step S4 and step S5, and step S41 comprises: cooling and curling the dried hot stamping transfer film.

[0010] It can be seen from the above scheme that the cooling and rolling steps broaden the use scope and time period of the hot stamping transfer film and facilitate transportation.

[0011] A further solution is that the drying temperature in step S4 is 130° C. to 150° C., and the drying time is 3 min to 5 min.

[0012] It can be seen from the above scheme that the above drying temperature can ensure that the hot melt adhesive ink is completely cured.

[0013] A further solution is that the hot pressing temperature in step S5 is 180° C. to 220° C., and the hot pressing time is 20 s to 30 s.

[0014] It can be seen from the above scheme that the above hot pressing temperature allows the hot melt adhesive ink to be fully melted and sticky, while ensuring that the thermal sublimation ink can be smoothly and fully sublimated onto the fabric.

[0015] A further solution is that, by mass percentage, the thermal sublimation ink contains 1% to 3% of styrene maleic anhydride copolymer.

[0016] It can be seen from the above scheme that the styrene maleic anhydride copolymer with the above content can solve the problem of ink penetration and at the same time ensure the smoothness of ink printing.

[0017] A further solution is that, by weight percentage, the hot melt adhesive ink contains 30% to 50% of water-based hot melt polycarbonate polyurethane.

[0018] It can be seen from the above scheme that the content of the above resin ensures the smoothness of hot melt adhesive ink printing while ensuring the subsequent bonding effect.

[0019] A further embodiment is that the glass transition temperature of the water-based hot-melt polycarbonate polyurethane is -20°C to -10°C.

[0020] It can be seen from the above scheme that the water-based hot-melt polycarbonate polyurethane with the glass transition temperature has a fast film-forming speed and a high printable ink volume.

[0021] A further solution is that the hot melting temperature of the water-based hot-melt polycarbonate polyurethane is 100°C to 200°C.

[0022] It can be seen from the above scheme that the water-based hot-melt polycarbonate polyurethane with the above hot-melt temperature can ensure the bonding strength while keeping the hot pressing temperature and pressure as low as possible, and has low requirements on process technology.

[0023] In a further embodiment, the thermal sublimation ink further comprises disperse dye paste, a first surfactant, a first organic solvent, a first auxiliary agent and water.

[0024] It can be seen from the above scheme that the above ingredients ensure the stability and fluidity of the thermal sublimation ink.

[0025] A further solution is that the hot melt adhesive ink also includes a second surfactant, a second organic solvent, a second auxiliary agent and water, wherein the mass ratio of the aqueous hot melt polycarbonate polyurethane to the second organic solvent is (30-50): (20-40).

[0026] It can be seen from the above scheme that the above ratio can effectively ensure the stability of continuous ink jetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a picture of a test of a colored printed fabric 1 with a hot stamping effect.

[0028] Figure 2 This is a picture of a test of a colored printed fabric 2 with a hot stamping effect.

[0029] Figure 3 It is a picture of 3 tests of colored printed fabric with hot stamping effect.

[0030] Figure 4 It is a picture of 4 tests of colored printed fabric with hot stamping effect.

[0031] Figure 5 This is a picture of 5 tests of colored printed fabrics with a hot stamping effect.

[0032] Figure 6 This is a picture of a test of a colored printed fabric 6 with a hot stamping effect.

[0033] Figure 7 It is a picture of 7 tests of colored printed fabric with hot stamping effect.

[0034] Figure 8 This is a picture of the test of the colored printed fabric 8 with the hot stamping effect

[0035] Fig. 9 This is a picture of the test of colored printed fabric 9 with hot stamping effect

[0036] Fig.10 It is a picture of 10 tests of colored printed fabric with hot stamping effect.

[0037] Fig.11 It is a picture of the test of colored printed fabric 11 with hot stamping effect.

[0038] Fig.12 It is a picture of 12 tests of colored printed fabric with hot stamping effect.

[0039] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0040] The present invention provides a process for achieving one-time hot stamping and thermal transfer, the method comprising the following steps:

[0041] S1: Loading hot melt adhesive ink and thermal sublimation ink into a multi-nozzle inkjet printer at the same time;

[0042] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0043] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0044] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. to 150° C. and the drying time is 3 min to 5 min;

[0045] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 180° C. to 220° C. and the hot pressing time is 20 s to 30 s;

[0046] S6: after cooling, removing the part of the hot stamping transfer film not adhering to the fabric, to obtain a colored printed fabric with a hot stamping effect; wherein the thermal sublimation ink contains styrene maleic anhydride copolymer, and the hot melt adhesive ink contains water-based hot melt polycarbonate polyurethane.

[0047] Wherein, a step S41 may be further provided between step S4 and step S5, and step S41 comprises: cooling and curling the dried hot stamping transfer film.

[0048] The present invention provides a process method for realizing one-time hot stamping and thermal transfer, wherein the thermal sublimation ink comprises 20% to 30% of a dye dispersion paste, 1% to 3% of a first surfactant, 20% to 30% of a first organic solvent, 1% to 3% of a styrene maleic anhydride copolymer, 0.1% to 0.3% of a leveling agent, 0.1% to 0.3% of a bactericide and the remainder of water.

[0049] The disperse dye paste contains at least one of blue 360, blue 359, brown 27, yellow 54 and red 60, and the disperse dye paste contains 5% to 10% of organic solvent, 20% to 30% of dispersant, 20% to 30% of disperse dye, 0.1% to 0.3% of fungicide and the balance of water. The organic solvent is selected from one of glycerol, diethylene glycol, ethylene glycol and propylene glycol, preferably glycerol; the dispersant is selected from at least one of BYK-190, sodium lignin sulfonate, American Gas Chemical ZETA SPERSE3700 and BASF PX4575, preferably BYK-190; the fungicide is selected from Clariant NIPACIDE BIT10W.

[0050] The first surfactant is an acetylene glycol surfactant, specifically at least one selected from surfnol465, surfnol485, and BESTON 583.

[0051] The first organic solvent includes at least one of diethylene glycol, propylene glycol, ethylene glycol and glycerol.

[0052] The styrene maleic anhydride copolymer is selected from one of SMA 1000, SMA 2000, SMA 3000, SMA 1440, SMA 17325, SMA 2021, SMA 2625, SMA 1000L, SMA 2000L and SMA 3000L.

[0053] The first auxiliary agent includes a leveling agent and a bactericide, wherein the leveling agent is selected from at least one of DYNOL 960, TIGO WET 240, TIGOWET 250, and SURFNOL 104E; and the bactericide is selected from at least one of NIPACIDE BIT10W, PROXEL GXL, and DMDMH.

[0054] The invention discloses a method for preparing thermal sublimation color paste.

[0055] 5% to 10% of organic solvent, 20% to 30% of dispersant, 20% to 30% of disperse dye, 0.1% to 0.3% of fungicide and the remainder of water are put into a high-speed disperser in sequence. After dispersing at 2500 rpm for 1 hour, the dispersion is put into a horizontal sand mill and ground at 3100 rpm for 7h to 9h to obtain a nano-scale disperse dye paste.

[0056] Preparation method of thermal sublimation ink.

[0057] 20% to 30% of dye dispersion paste, 1% to 3% of the first surfactant, 20% to 30% of the first organic solvent, 1% to 3% of styrene maleic anhydride copolymer, 0.1% to 0.3% of the leveling agent, 0.1% to 0.3% of the fungicide and the balance of water are sequentially added into a disperser at 2000 rpm, stirred for 30 minutes, and filtered twice with a Cobeteer 0.45 micron PP filter membrane to obtain a thermal sublimation ink.

[0058] The present invention provides a hot melt adhesive ink in a process method for achieving one-time hot stamping and thermal transfer, which includes 1% to 3% of a second surfactant, 20% to 30% of a second organic solvent, 30% to 50% of an aqueous hot melt polycarbonate polyurethane, 0.1% to 0.3% of a leveling agent, 0.1% to 0.3% of a bactericide, and the remainder of water. The mass ratio of the aqueous hot melt polycarbonate polyurethane to the second organic solvent is (30 to 50): (20 to 40)

[0059] The second surfactant is an acetylene glycol surfactant, specifically selected from at least one of surfnol465, surfnol485, and BESTON 583.

[0060] The second organic solvent includes at least one of diethylene glycol, propylene glycol, ethylene glycol and glycerol.

[0061] The water-based hot-melt polycarbonate polyurethane has a hot melting temperature of 100°C to 200°C and a glass transition temperature of -20°C to -10°C, and is specifically selected from Huigu Chemical WPU2360, LPU329, and Lianku Chemical 453N.

[0062] The second auxiliary agent includes a leveling agent and a bactericide, wherein the leveling agent is selected from at least one of DYNOL 960, TIGO WET 240, TIGOWET 250, and SURFNOL 104E; and the bactericide is selected from at least one of NIPACIDE BIT10W, PROXEL GXL, and DMDMH.

[0063] A method for preparing hot melt adhesive ink.

[0064] 1% to 3% of the second surfactant, 20% to 30% of the second organic solvent, 30% to 50% of the aqueous hot-melt polycarbonate polyurethane, 0.1% to 0.3% of the leveling agent, 0.1% to 0.3% of the fungicide and the balance of water are added into a disperser in sequence at 2000 rpm. After dispersion for 30 minutes, the mixture is filtered twice with a Cobeteer 0.45 micron PP filter membrane to obtain a hot melt adhesive ink.

[0065] The process method for achieving one-time hot stamping and thermal transfer of the present invention is further described below in conjunction with specific embodiments.

[0066] By mass percentage, disperse dye pastes were prepared according to the formula components shown in Table 1 below.

[0067] Table 1

[0068]

[0069] Preparation method of disperse dye paste: 44.9% deionized water, 5% propylene glycol, 25% BYK190, 25% disperse dye, and 0.1% NIPACIDE BIT10W are sequentially put into a high-speed disperser, dispersed at 2500 rpm for 1 hour, and then the dispersion is put into a horizontal sand mill and ground at 3100 rpm for 7h to 9h to obtain a nano-scale disperse dye paste.

[0070] By mass percentage, thermal sublimation inks were prepared according to the formula components shown in Table 2 and Table 3.

[0071] Table 2

[0072]

[0073]

[0074]

[0075] Table 3

[0076]

[0077]

[0078] Preparation method of thermal sublimation ink: dye dispersion paste, first surfactant, first organic solvent, styrene maleic anhydride copolymer, leveling agent, bactericide and balance water are added into a disperser at 2000 rpm in sequence, stirred for 30 minutes, filtered twice with Cobeteer 0.45 micron PP filter membrane to obtain thermal transfer dispersed ink.

[0079] By mass percentage, hot melt adhesive inks were prepared according to the formula components shown in Table 4 below.

[0080] Table 4

[0081]

[0082] Preparation method of hot melt adhesive ink: add the second surfactant, the second organic solvent, the aqueous hot melt polycarbonate polyurethane, the leveling agent, the bactericide and the remaining water into a disperser in sequence, at 2000 rpm, disperse for 30 minutes, filter twice with a Cobeteer 0.45 micron PP filter membrane to obtain the hot melt adhesive ink.

[0083] It should be noted that the Impranil DLP-R resin purchased from Covestro is an aliphatic polyester polyurethane.

[0084] Example 1

[0085] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0086] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0087] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0088] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0089] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0090] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 1 with a gold stamping effect.

[0091] Example 2

[0092] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0093] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0094] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0095] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 150° C. and the drying time is 3 minutes;

[0096] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 180° C. and the hot pressing time is 30 seconds;

[0097] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 2 with a gold stamping effect.

[0098] Example 3

[0099] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0100] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0101] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0102] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 135° C. and the drying time is 3 minutes;

[0103] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 210° C. and the hot pressing time is 30 seconds;

[0104] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 3 with a gold stamping effect.

[0105] Example 4

[0106] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 2, blue ink 2, red ink 2 and yellow ink 2 prepared according to the components in Table 2 above;

[0107] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0108] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0109] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0110] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0111] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 4 with a gold stamping effect.

[0112] Example 5

[0113] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 3, blue ink 3, red ink 3 and yellow ink 3 prepared according to the components in Table 3 above;

[0114] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0115] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0116] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0117] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0118] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 5 with a gold stamping effect.

[0119] Example 6

[0120] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 2 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 3 above;

[0121] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0122] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0123] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0124] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0125] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 6 with a gold stamping effect.

[0126] Example 7

[0127] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 3 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0128] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0129] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0130] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0131] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0132] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 7 with a gold stamping effect.

[0133] Comparative Example 1

[0134] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 4, blue ink 4, red ink 4 and yellow ink 4 prepared according to the components in Table 3 above;

[0135] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0136] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0137] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0138] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0139] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 8 with a gold stamping effect.

[0140] Comparative Example 2

[0141] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 4 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0142] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0143] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0144] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0145] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0146] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 9 with a gold stamping effect.

[0147] Comparative Example 3

[0148] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 4 prepared according to the components in Table 4 above, and the thermal sublimation ink is black ink 4, blue ink 4, red ink 4 and yellow ink 4 prepared according to the components in Table 3 above;

[0149] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0150] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0151] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 130° C. and the drying time is 3 minutes;

[0152] S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing a hot pressing process, wherein the hot pressing temperature is 220° C. and the hot pressing time is 30 seconds;

[0153] S6: After cooling, the portion of the gold stamping transfer film not adhering to the fabric is removed to obtain a colored printed fabric 10 with a gold stamping effect.

[0154] Comparative Example 4

[0155] S1: hot melt adhesive ink and thermal sublimation ink are simultaneously loaded into a multi-nozzle inkjet printer, wherein the hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 3 above, and the thermal sublimation ink is black ink 1, blue ink 1, red ink 1 and yellow ink 1 prepared according to the components in Table 2 above;

[0156] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0157] S3: Through computer control, hot melt adhesive ink and thermal sublimation ink are printed on the hot stamping transfer film at the same time according to the set pattern;

[0158] S4: drying the hot stamping transfer film on which the pattern is printed in step S3, wherein the drying temperature is 120° C. and the drying time is 3 minutes;

[0159] S5: Bond the dried hot stamping transfer film in step S4 to the fabric and perform hot pressing, where the hot pressing temperature is 170 °C and the hot pressing time is 30 s;

[0160] S6: After cooling, remove the part of the hot stamping transfer film that is not adhered to the fabric to obtain the colored printed fabric 11 with a hot stamping effect.

[0161] Comparative Example 5

[0162] S1: Load the hot melt adhesive ink and the heat sublimation ink simultaneously in a multi-nozzle inkjet printer. The hot melt adhesive ink is the hot melt adhesive ink 4 prepared according to the components in Table 3 above, and the heat sublimation inks are the black ink 4, blue ink 4, red ink 4, and yellow ink 4 prepared according to the components in Table 2 above;

[0163] S2: Install the hot stamping transfer film to be printed on the inkjet printer;

[0164] S3: Through computer control, print the hot melt adhesive ink and the heat sublimation ink simultaneously on the hot stamping transfer film according to the set pattern;

[0165] S4: Dry the hot stamping transfer film with the printed pattern in step S3, where the drying temperature is 160 °C and the drying duration is 3 min;

[0166] S5: Bond the dried hot stamping transfer film in step S4 to the fabric and perform hot pressing, where the hot pressing temperature is 230 °C and the hot pressing time is 30 s;

[0167] S6: After cooling, remove the part of the hot stamping transfer film that is not adhered to the fabric to obtain the colored printed fabric 12 with a hot stamping effect.

[0168] Transfer Printing and Performance Testing

[0169] Place the colored printed fabrics 1 to 7 with a hot stamping effect prepared in Examples 1 to 7 and Comparative Examples 1 to 5 in an environment of room temperature and relative humidity of 50 ± 5 °C for 24 hours. Then wash and dry the fabrics according to the method specified in GB / T8629-2017. Refer to Figures 1 to 12 , Figures 1 to 7 The picture patterns and fonts are clear, Figure 8 to Figure 12 all have different defects, Figure 8 that is, the hot stamping pattern in Comparative Example 1 is not clear, especially the "TIAN" character almost disappears, Fig. 9 that is, the pattern in Comparative Example 2 is defective, Fig.10 that is, the hot stamping pattern in Comparative Example 3 spreads severely and spreads onto the heat sublimation pattern, and the pattern is not clear, Fig.11 that is, the hot stamping pattern in Comparative Example 4 is missing, especially the character "材", and there is no hot stamping pattern; Fig.12That is, the pattern of comparative example 5 is seriously missing. It can be seen that the clarity of the fabrics of comparative examples 1 to 5 is obviously worse than that of embodiments 1 to 7.

[0170] A process method for realizing one-time hot stamping and heat transfer of the present invention, hot melt adhesive ink and heat sublimation ink are printed on the hot stamping transfer film at the same time, in the subsequent hot pressing process, the heat sublimation ink is transferred to the fabric by heat sublimation from the hot stamping transfer film to form a colored printed pattern, the hot melt adhesive ink is heated and melted to have viscosity, and the hot stamping transfer film is adhered to the fabric surface to form a hot stamping pattern, the whole process is completed at one time, the hot melt adhesive ink and the heat sublimation ink are printed at the same time, further saving the printing time, making the whole production process more efficient, the whole process can be realized by computer control, high degree of automation, easy to operate. The heat sublimation ink of the present invention contains styrene maleic anhydride copolymer, and the styrene maleic anhydride copolymer contains carbonyl, which can improve the surface energy of the heat sublimation ink, help to enhance the interaction force between ink molecules, thereby reducing the disordered diffusion and penetration of the ink, and avoiding the penetration of the heat sublimation ink like the hot melt adhesive ink. At the same time, the hot melt adhesive ink of the present invention contains water-based hot melt polycarbon type polyurethane, which can quickly form a film on the hot stamping transfer film, further preventing the penetration of the heat sublimation ink. In addition, styrene maleic anhydride copolymer also has the technical effect of dispersing dyes and solving the problem of ink fluidity.

[0171] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A process for achieving one-time hot stamping and thermal transfer, characterized in that: The process comprises the following steps: S1: Loading hot melt adhesive ink and thermal sublimation ink into a multi-nozzle inkjet printer at the same time; S2: installing the hot stamping transfer film to be printed on the inkjet printer; S3: printing the hot melt adhesive ink and the thermal sublimation ink on the hot stamping transfer film simultaneously according to a set pattern; S4: Drying the hot stamping transfer film on which the pattern is printed in step S3; S5: Laminating the hot stamping transfer film dried in step S4 to the fabric and performing heat pressing treatment; S6: after cooling, removing the portion of the gold stamping transfer film that is not adhered to the fabric, to obtain a colored printed fabric with a gold stamping effect; Wherein, the thermal sublimation ink contains styrene maleic anhydride copolymer, and the hot melt adhesive ink contains water-based hot melt polycarbonate polyurethane.

2. A process for achieving one-time hot stamping and thermal transfer as claimed in claim 1, characterized in that: Step S41 is provided between step S4 and step S5, and step S41 comprises: cooling and curling the dried hot stamping transfer film.

3. A process for achieving one-time hot stamping and thermal transfer as claimed in claim 1, characterized in that: The drying temperature in step S4 is 130° C. to 150° C., and the drying time is 3 min to 5 min.

4. A process for achieving one-time hot stamping and thermal transfer as claimed in claim 1, characterized in that: The hot pressing temperature in step S5 is 180° C. to 220° C., and the hot pressing time is 20 s to 30 s.

5. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: Calculated by mass percentage, the thermal sublimation ink contains 1% to 3% of the styrene maleic anhydride copolymer.

6. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: Measured by mass percentage, the hot melt adhesive ink contains 30% to 50% of the water-based hot melt polycarbonate polyurethane.

7. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: The glass transition temperature of the water-based hot-melt polycarbonate polyurethane is -20°C to -10°C.

8. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: The hot melting temperature of the water-based hot-melt polycarbonate polyurethane is 100°C to 200°C.

9. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: The thermal sublimation ink also includes disperse dye paste, a first surfactant, a first organic solvent, a first auxiliary agent and water.

10. A process for achieving one-time hot stamping and thermal transfer according to any one of claims 1 to 4, characterized in that: The hot melt adhesive ink also includes a second surfactant, a second organic solvent, a second auxiliary agent and water, wherein the mass ratio of the water-based hot melt polycarbonate polyurethane to the second organic solvent is (30-50): (20-40).

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