Process method for achieving single-pass foil stamping and heat transfer printing

Abstract

A process method for achieving single-pass foil stamping and heat transfer printing, the process method comprising the following steps: simultaneously loading heat-activated adhesive ink and dye-sublimation ink into an inkjet printer having multiple nozzles; simultaneously printing the heat-activated adhesive ink and the dye-sublimation ink onto a hot stamping transfer foil according to a set pattern; performing a drying process; applying the dried hot stamping transfer foil to a fabric, and performing heat pressing; and after cooling, removing a portion of the hot stamping transfer foil that has not adhered to the fabric, so as to obtain a color-printed fabric having a foil stamping effect. The dye-sublimation ink comprises one of a styrene maleic anhydride copolymer, an acrylic polymer, and an acrylic-modified resin, and the heat-activated adhesive ink comprises at least one of a waterborne thermoplastic polycarbonate-based polyurethane, a waterborne thermoplastic polyether-based polyurethane, and a waterborne thermoplastic acrylic resin.

Description

A process for achieving one-time hot stamping and heat transfer printing Technical Field

[0001] This invention relates to the field of textile printing and dyeing, and specifically to a process for achieving one-time hot stamping and heat transfer printing. Background Technology

[0002] Textile printing includes color printing and special printing. Color printing refers to dye printing or pigment printing. It involves applying dyes or pigments capable of coloring textile fabrics to a localized area of ​​the fabric surface using physical or chemical methods. Through a physical or chemical reaction, the dyes or pigments deposit and bond with the fabric fibers, creating a localized color. It often uses red, yellow, blue, and black as basic colors, mixing them to create various other colors.

[0003] Specialty printing refers to applying special materials to the surface of fabrics through methods such as screen printing, roller coating, hand-painting, transfer printing, electrostatic attraction, and even 3D printing. This creates unique three-dimensional effects such as hot stamping, high-solidity printing, crackling, shimmering gold, burnout, and flocking, significantly increasing the added value of the fabric. Hot stamping is the most common technique, printing various gold and silver colors, as well as laser interference effects, onto the fabric; it has become particularly popular in the market in recent years.

[0004] The two types of printing mentioned above are usually carried out separately. An invention patent with publication number CN110641173A discloses a digital heat transfer positioning hot stamping method, which includes first coating a layer of printing paste onto the surface of the hot stamping foil, then printing hot melt adhesive paste onto the surface of the hot stamping foil coated with printing paste, and after drying, printing disperse dye ink onto the hot stamping foil with the hot melt adhesive pattern on its surface, and finally bonding it with the polyester fabric to be printed, and hot pressing to obtain the positioned hot stamped printed fabric. Although the above process shortens the production process compared to traditional methods, hot stamping and color printing are still carried out in separate steps, involving a separate drying process for the hot melt adhesive. The actual production process remains complex, time-consuming, and inefficient.

[0005] Therefore, achieving hot stamping and color printing in one step has become a major challenge in the current process. CN119058257A discloses a one-step digital hot stamping process for textiles. However, during the digital printing process, when hot melt adhesive ink and sublimation ink are printed onto the hot stamping transfer film at the same time, the two inks have similar properties, and mutual penetration occurs when they come into contact, resulting in a decrease in the clarity of the pattern. Technical issues

[0006] The purpose of this invention is to provide a process method for achieving one-time hot stamping and heat transfer printing, which solves the problems of complex and inefficient production processes in existing hot stamping and color printing, and also solves the problem of mutual penetration between hot melt adhesive ink and thermal sublimation ink during simultaneous printing. Technical solutions

[0007] To achieve the objectives of this invention, a process method for one-time hot stamping and heat transfer printing is provided. This process method includes the following steps: S1: simultaneously loading hot melt adhesive ink and sublimation ink into a multi-head inkjet printer; S2: mounting the hot stamping transfer film to be printed onto the inkjet printer; S3: simultaneously printing the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to a set pattern; S4: drying the hot stamping transfer film with the printed pattern from step S3; S5: bonding the dried hot stamping transfer film from step S4 to a fabric and performing a hot pressing process; S6: after cooling, removing the portion of the hot stamping transfer film not adhered to the fabric to obtain a colored printed fabric with a hot stamping effect; wherein, the sublimation ink contains one of styrene-maleic anhydride copolymer, acrylic polymer, or modified acrylic resin, and the hot melt adhesive ink contains at least one of water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, or water-based hot melt acrylic resin.

[0008] A further option is to include a step S41 between step S4 and step S5, which includes cooling and rolling the dried hot stamping transfer film.

[0009] A further option is to use a drying temperature of 130°C to 150°C and a drying time of 3 to 5 minutes in step S4.

[0010] A further option is to set the hot-pressing temperature in step S5 to 180°C to 220°C and the hot-pressing time to 20s to 30s.

[0011] A further option is to contain 1% to 3% by weight of styrene-maleic anhydride copolymer, acrylic polymer, or acrylic modified resin in the thermal sublimation ink.

[0012] A further option is to include, by weight percentage, 30% to 50% of water-based hot-melt polycarbonate polyurethane, water-based hot-melt polyether polyurethane, or water-based hot-melt acrylic resin in the hot-melt adhesive ink.

[0013] A further option is that the glass transition temperature of waterborne hot-melt polycarbonate polyurethane is -20℃ to -10℃; the glass transition temperature of waterborne hot-melt polyether polyurethane is -20℃ to 60℃; and the glass transition temperature of waterborne hot-melt acrylic resin is -20℃ to 80℃.

[0014] A further option is that the hot-melt temperature of waterborne hot-melt polycarbonate is 100°C to 200°C; the hot-melt temperature of waterborne hot-melt polyether polyurethane is 120°C to 180°C; and the hot-melt temperature of waterborne hot-melt acrylic resin is 120°C to 210°C.

[0015] A further option is that the thermal sublimation ink also includes disperse dye paste, a first surfactant, a first organic solvent, a first additive, and water.

[0016] A further embodiment is that the hot melt adhesive ink also includes a second surfactant, a second organic solvent, a second additive, and water, wherein the mass ratio of water-based hot melt polycarbonate polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of water-based hot melt polyether polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of water-based hot melt acrylic resin to the second organic solvent is (30-50):(20-40). Beneficial effects

[0017] In this invention, the process for achieving one-time hot stamping and heat transfer printing involves simultaneously printing hot melt adhesive ink and sublimation ink onto a hot stamping transfer film. During subsequent hot pressing, the sublimation ink, through sublimation, leaves the hot stamping transfer film and transfers onto the fabric to form a colored printed pattern. The hot melt adhesive ink, upon heating, becomes viscous, adhering the hot stamping transfer film to the fabric surface to form a hot stamping pattern. The entire process is completed in one step, with simultaneous printing of both hot melt adhesive ink and sublimation ink, further saving printing time and increasing the overall production efficiency. The entire process can be computer-controlled, exhibiting a high degree of automation and ease of operation. The sublimation ink of this invention contains styrene-maleic anhydride copolymer, acrylic polymers, or acrylic-modified resins. The styrene-maleic anhydride copolymer contains carbonyl groups, which can increase the surface energy of the sublimation ink, helping to enhance the interaction forces between ink molecules, thereby reducing disordered diffusion and penetration of the ink and preventing the sublimation ink from penetrating into the hot melt adhesive ink. Furthermore, the styrene-maleic anhydride copolymer also possesses disperse dye properties, effectively addressing ink flow issues. Acrylic polymers and modified acrylic resins also contain carbonyl groups, which increase the surface energy of the sublimation ink, enhance the attraction between ink molecules, and prevent diffusion, thus inhibiting ink penetration. Furthermore, the acrylic polymers and modified acrylic resins contain carboxyl groups, which are anionic and can react with cationic components such as metal salts in the hot stamping film coating, increasing the ink load and resulting in more vibrant colors. Simultaneously, the hot melt adhesive ink of this invention contains at least one of water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, and water-based hot melt acrylic resin, enabling rapid film formation on the hot stamping transfer film and further preventing the penetration of the sublimation ink. At the same time, the water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, and water-based hot melt acrylic resin contain water-soluble groups that can undergo hydrogen bonding with the carbonyl groups in the acrylic polymers and modified acrylic resins in the sublimation ink, forming a homogeneous dispersion and preventing layering due to incompatibility when the two come into contact.

[0018] This invention expands the application range and time cycle of hot stamping transfer film by using a cooling and rolling step, while also facilitating transportation.

[0019] The drying temperature used in this invention can ensure that the hot melt adhesive ink is completely cured.

[0020] The hot-pressing temperature used in this invention allows the hot melt adhesive ink to fully melt and become viscous, while ensuring that the thermal sublimation ink can be smoothly and fully sublimated onto the fabric.

[0021] The sublimation ink of this invention contains 1% to 3% styrene-maleic anhydride copolymer, acrylic polymer, or acrylic modified resin, which solves the problem of ink penetration while ensuring smooth ink printing.

[0022] The resin content of this invention ensures both smooth printing of the hot melt adhesive ink and effective subsequent bonding.

[0023] The water-based hot-melt resin with the glass transition temperature set according to this invention has a fast film-forming speed and can print a high amount of ink.

[0024] The water-based hot-melt resin with the hot-melt temperature set according to the present invention ensures strong adhesion while keeping the hot-pressing temperature and pressure as low as possible, thus requiring less advanced processing technology.

[0025] Sublimation ink also includes disperse dye paste, first surfactant, first organic solvent, first additive and water to ensure the stability and smoothness of sublimation ink.

[0026] The mass ratio of water-based hot-melt polycarbonate to the second organic solvent set according to the present invention is (30-50):(20-40); or the mass ratio of water-based hot-melt polyether polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of water-based hot-melt acrylic resin to the second organic solvent is (30-50):(20-40), which can effectively ensure the stability of continuous ink spraying. Attached Figure Description

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

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

[0029] Figure 3 is a picture of the color-printed fabric 3 test with hot stamping effect.

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

[0031] Figure 5 is a picture of the colored printed fabric 5 with hot stamping effect.

[0032] Figure 6 is a picture of the color-printed fabric 6 with hot stamping effect.

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

[0034] Figure 8 is a picture of the color-printed fabric with hot stamping effect 8 test.

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

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

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

[0038] Figure 12 is a picture of the color-printed fabric 12 with hot stamping effect.

[0039] Figure 13 is a picture of the color-printed fabric 13 with hot stamping effect.

[0040] Figure 14 is a picture of the color-printed fabric 14 with hot stamping effect.

[0041] Figure 15 is a picture of a colored printed fabric 15 with a hot stamping effect.

[0042] Figure 16 is a picture of a colored printed fabric 16 with a hot stamping effect.

[0043] Figure 17 is a picture of a colored printed fabric 17 with a hot stamping effect.

[0044] Figure 18 is a picture of a colored printed fabric 18 with a hot stamping effect.

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments. Embodiments of the present invention

[0046] This invention provides a process for achieving one-time hot stamping and heat transfer printing, the method comprising the following steps:

[0047] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer;

[0048] S2: Install the hot stamping transfer film to be printed onto the inkjet printer;

[0049] S3: Under computer control, hot melt adhesive ink and sublimation ink are simultaneously printed onto the hot stamping transfer film according to the set pattern;

[0050] S4: Dry the hot stamping transfer film with the printed pattern in step S3, wherein the drying temperature is 130℃ to 150℃ and the drying time is 3min to 5min.

[0051] S5: The hot stamping transfer film dried in step S4 is bonded to the fabric and subjected to hot pressing treatment, wherein the hot pressing temperature is 180℃ to 220℃ and the hot pressing time is 20s to 30s.

[0052] S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric with a hot stamping effect; wherein the thermal sublimation ink contains styrene-maleic anhydride copolymer, acrylic polymer or acrylic modified resin, and the hot melt adhesive ink contains at least one of water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, and water-based hot melt acrylic resin.

[0053] Between step S4 and step S5, step S41 may be provided, which includes: cooling and rolling the dried hot stamping transfer film.

[0054] By weight percentage, the sublimation ink in the process of realizing one-time hot stamping and heat transfer provided by the present invention comprises 20% to 30% dye dispersion paste, 1% to 3% first surfactant, 20% to 30% first organic solvent, 1% to 3% styrene-maleic anhydride copolymer or acrylic polymer or acrylic modified resin, 0.1% to 0.3% leveling agent, 0.1% to 0.3% bactericide and the balance being water.

[0055] The disperse dye paste contains at least one disperse dye selected from Blue 360, Blue 359, Brown 27, Yellow 54, and Red 60. The disperse dye paste comprises 5%–10% organic solvent, 20%–30% dispersant, 20%–30% disperse dye, 0.1%–0.3% bactericide, and the balance being water. The organic solvent is selected from glycerol, diethylene glycol, ethylene glycol, and propylene glycol, preferably glycerol; the dispersant is selected from at least one selected from BYK-190, sodium lignosulfonate, Zeta Sperse 3700, and BASF PX4575, preferably BYK-190; and the bactericide is selected from Clariant NIPACIDE BIT10W.

[0056] The first surfactant is an acetylenic diol surfactant, specifically selected from at least one of surfnol 465, surfnol 485, and BESTON 583.

[0057] The first organic solvent includes at least one of diethylene glycol, propylene glycol, ethylene glycol, and glycerol.

[0058] The styrene-maleic anhydride copolymer is selected from one of SMA 1000, SMA 2000, SMA 3000, SMA 1440, SMA 17325, SMA2021, SMA 2625, SMA1000L, SMA 2000L, and SMA 3000L.

[0059] The acrylic polymer is selected from one of the following: acrylic resin, polymethyl methacrylate, acrylate-methyl methacrylate homopolymer, and styrene-acrylic resin, specifically Covestro's B-814, B-735, or BASF's... 678、 586、 HPD671 or Badifu's RS-8686 or CHEMIPAZ Co., Ltd.'s SEIKOAT TM One of the series.

[0060] The acrylic modified resin is preferably an acrylic modified alkyd resin, specifically selected from BLJ-C3020 prepared by Shanghai Baolijia Chemical Co., Ltd., and GS-602 and GS-603 prepared by Changzhou Guangshu Chemical Technology Co., Ltd.

[0061] The acid value range of the above acrylic polymers and acrylic modified resins is 10 mg KOH / g to 250 mg KOH / g.

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

[0063] Preparation method of thermal sublimation pigment:

[0064] 5%–10% organic solvent, 20%–30% dispersant, 20%–30% disperse dye, 0.1%–0.3% bactericide, and the remainder water are sequentially added to a high-speed disperser and dispersed at 2500 rpm for 1 hour. Then, the dispersion is fed into a horizontal sand mill and ground at 3100 rpm for 7–9 hours to obtain nano-scale disperse dye paste.

[0065] Preparation method of thermal sublimation ink:

[0066] 20%–30% of dye dispersion paste, 1%–3% of the first surfactant, 20%–30% of the first organic solvent, 1%–3% of styrene-maleic anhydride copolymer or acrylic polymer or acrylic modified resin, 0.1%–0.3% of leveling agent, 0.1%–0.3% of bactericide, and the balance water are added sequentially to a disperser at 2000 rpm and stirred for 30 minutes. After stirring, the mixture is filtered twice through a Cobeteer 0.45-micron PP filter membrane to obtain the thermal sublimation ink.

[0067] By weight percentage, the hot melt adhesive ink in the process method for achieving one-time hot stamping and heat transfer provided by the present invention comprises 1% to 3% of a second surfactant, 20% to 30% of a second organic solvent, 30% to 50% of a water-based hot melt polycarbonate polyurethane, a water-based hot melt polyether polyurethane, or a water-based hot melt acrylic resin, 0.1% to 0.3% of a leveling agent, 0.1% to 0.3% of a bactericide, and the balance being water. The mass ratio of the water-based hot melt polycarbonate polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of the water-based hot melt polyether polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of the water-based hot melt acrylic resin to the second organic solvent is (30-50):(20-40).

[0068] The second surfactant is an acetylenic diol surfactant, specifically selected from at least one of surfnol 465, surfnol 485, and BESTON 583.

[0069] The second organic solvent includes at least one of diethylene glycol, propylene glycol, ethylene glycol, and glycerol.

[0070] The hot melt temperature of water-based hot melt polycarbonate polyurethane is 100℃ to 200℃, and the glass transition temperature is -20℃ to -10℃. Specifically, it is selected from Huigu Chemical WPU2360, LPU329, and Lian Gu Chemical 453N.

[0071] The hot-melt temperature of water-based hot-melt polyether polyurethane is 120℃ to 180℃, and the glass transition temperature is -20℃ to 60℃. Specifically, it is selected from one of the following: Ruilin's RL-8301, Lanxess's Witcobond240, Witcobond234B, and Witcobond386-03.

[0072] The hot-melt temperature of water-based hot-melt acrylic resins is 120℃ to 210℃, and the glass transition temperature is -20℃ to 80℃. Specific selections include DISEN's VONCOAT WHK-364, VONCOAT WGK-913-ZS, VONCOAT WE-400, and BURNOCK WD-551, and Evonik's... AC 1420 AC 1520 One of the AC 1630s.

[0073] The second adjuvant includes a leveling agent and a bactericide, wherein the leveling agent is selected from at least one of DYNOL 960, TIGO WET 240, TIGO WET 250, and SURFNOL 104E; and the bactericide is selected from at least one of NIPACIDE BIT10W, PROXEL GXL, and DMDMH.

[0074] Preparation method of hot melt adhesive ink:

[0075] 1%–3% of the second surfactant, 20%–30% of the second organic solvent, 30%–50% of the waterborne hot-melt polycarbonate polyurethane, waterborne hot-melt polyether polyurethane, or waterborne hot-melt acrylic resin, 0.1%–0.3% of the leveling agent, 0.1%–0.3% of the bactericide, and the balance water are added sequentially to a disperser and dispersed at 2000 rpm for 30 minutes. After dispersing, the mixture is filtered twice through a Cobeteer 0.45-micron PP filter membrane to obtain the hot-melt adhesive ink.

[0076] The following specific embodiments further illustrate the process method of achieving one-time hot stamping and heat transfer printing according to the present invention.

[0077] Disperse dye pastes were prepared according to the formulation components shown in Table 1 at the end of the embodiments of the present invention, based on a percentage by mass. It should be noted that in the table, paste B represents black disperse dye paste, paste C represents blue disperse dye paste, paste M represents red disperse dye paste, and paste Y represents yellow disperse dye paste.

[0078] Preparation method of disperse dye paste: 44.9% deionized water, 5% glycerol, 25% BYK190, 25% disperse dye, and 0.1% NIPACIDE BIT10W are sequentially added to a high-speed disperser and dispersed at 2500 rpm for 1 hour. Then, the dispersion is put into a horizontal sand mill and ground at 3100 rpm for 7 to 9 hours to obtain nano-scale disperse dye paste.

[0079] Sublimation inks were prepared according to the formulation components shown in Tables 2 and 3 at the end of the embodiments of the present invention, based on a percentage by mass. It should be noted that in the tables, B1 represents black ink 1, C1 represents blue ink 1, M1 represents red ink 1, and Y1 represents yellow ink 1. Correspondingly, B2 to B8 represent black ink 2 to black ink 8, C2 to C8 represent blue ink 2 to blue ink 8, M2 to M8 represent red ink 2 to red ink 8, and Y2 to Y8 represent yellow ink 2 to yellow ink 8.

[0080] It should be noted that the FS-Y30C resin mentioned above is a cationic waterborne polyurethane resin purchased from Guangzhou Aimeike.

[0081] Preparation method of thermal sublimation ink: Dye dispersion paste, first surfactant, first organic solvent, styrene-maleic anhydride copolymer or acrylic polymer or acrylic modified resin, leveling agent, bactericide and the balance water are added to a disperser at 2000 rpm and stirred for 30 min. After filtration twice through a Cobeteer 0.45 micron PP filter membrane, thermal transfer dispersion ink is obtained.

[0082] Hot melt adhesive inks were prepared according to the formulation components shown in Table 4 at the end of the embodiments of the present invention, based on a percentage by mass.

[0083] Preparation method of hot melt adhesive ink: The second surfactant, the second organic solvent, the water-based hot melt polycarbonate polyurethane or water-based hot melt polyether polyurethane or water-based hot melt acrylic resin, the leveling agent, the bactericide and the balance water are added to the disperser in sequence, dispersed at 2000 rpm for 30 min, and then filtered twice with a Cobeteer 0.45 micron PP filter membrane to obtain the hot melt adhesive ink.

[0084] It should be noted that the Impranil DLP-R resin selected from Covestro is an aliphatic polyester polyurethane.

[0085] Example 1

[0086] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 1 with a hot stamping effect.

[0087] Example 2

[0088] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 150°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 180°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 2 with a hot stamping effect.

[0089] Example 3

[0090] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 135°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 210°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 3 with a hot stamping effect.

[0091] Example 4

[0092] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 4 with a hot stamping effect.

[0093] Example 5

[0094] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 220°C for 30 seconds. S6: After cooling, remove the part of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 5 with a hot stamping effect.

[0095] Example 6

[0096] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 2 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 6 with a hot stamping effect.

[0097] Example 7

[0098] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 3 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 7 with a hot stamping effect.

[0099] Example 8

[0100] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the sublimation ink is black ink 5, blue ink 5, red ink 5, and yellow ink 5 prepared according to the components in Table 2 above. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 13 with a hot stamping effect.

[0101] Example 9

[0102] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 5 prepared according to the components in Table 4 above, and the sublimation ink is black ink 6, blue ink 6, red ink 6, and yellow ink 6 prepared according to the components in Table 2 above. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 14 with a hot stamping effect.

[0103] Example 10

[0104] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 6 prepared according to the components in Table 4 above, and the sublimation ink is black ink 7, blue ink 7, red ink 7, and yellow ink 7 prepared according to the components in Table 2 above. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 220°C for 30 seconds. S6: After cooling, remove the part of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 15 with a hot stamping effect.

[0105] Example 11

[0106] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 5 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink simultaneously onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 16 with a hot stamping effect.

[0107] Example 12

[0108] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 6 prepared according to the components in Table 4 above, and the sublimation ink is black ink 5, blue ink 5, red ink 5, and yellow ink 5 prepared according to the components in Table 2 above. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 17 with a hot stamping effect.

[0109] Comparative Example 1

[0110] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 220°C for 30 seconds. S6: After cooling, remove the part of the hot stamping transfer film that is not adhered to the fabric to obtain colored printed fabric 8 with a hot stamping effect.

[0111] Comparative Example 2

[0112] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 4 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 9 with a hot stamping effect.

[0113] Comparative Example 3

[0114] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 4 prepared according to the components in Table 4 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 130°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 220°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 10 with a hot stamping effect.

[0115] Comparative Example 4

[0116] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 1 prepared according to the components in Table 3 above, and the 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. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 120°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing at a temperature of 170°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 11 with a hot stamping effect.

[0117] Comparative Example 5

[0118] S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer. The hot melt adhesive ink is hot melt adhesive ink 4 prepared according to the components in Table 3 above, and the sublimation ink is black ink 4, blue ink 4, red ink 4, and yellow ink 4 prepared according to the components in Table 2 above. S2: Install the hot stamping transfer film to be printed on the inkjet printer. S3: Under computer control, print the hot melt adhesive ink and sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern. S4: Dry the hot stamping transfer film with the printed pattern in step S3 at a drying temperature of 160°C for 3 minutes. S5: Lay the dried hot stamping transfer film in step S4 onto the fabric and perform hot pressing treatment at a temperature of 230°C for 30 seconds. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric 12 with a hot stamping effect.

[0119] Comparative Example 6

[0120] S1: Simultaneously load hot melt adhesive ink and thermal sublimation ink in an inkjet printer with multiple nozzles. The hot melt adhesive ink is the hot melt adhesive ink 5 prepared according to the components in Table 4 above, and the thermal sublimation ink is the black ink 8, blue ink 8, red ink 8, and yellow ink 8 prepared according to the components in Table 2 above; S2: Install the gold stamping transfer film to be printed on the inkjet printer; S3: Through computer control, simultaneously print the hot melt adhesive ink and thermal sublimation ink on the gold stamping transfer film according to the set pattern; S4: Dry the gold stamping transfer film with the printed pattern in step S3, where the drying temperature is 130 °C and the drying duration is 3 min; S5: Bond the dried gold stamping transfer film in step S4 to the fabric and perform hot pressing, where the hot pressing temperature is 220 °C and the hot pressing time is 30 s; S6: After cooling, remove the part of the gold stamping transfer film that is not adhered to the fabric to obtain the colored printed fabric 18 with a gold stamping effect.

[0121] Transfer and Performance Testing

[0122] Place the colored printed fabrics 1 to 18 with a gold stamping effect prepared in Examples 1 to 12 and Comparative Examples 1 to 6 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 18. The picture patterns and fonts in Figures 1 to 7 and Figures 13 to 17 are clear, while there are different defects in Figures 8 to 12. In Figure 8, that is, the gold stamping pattern in Comparative Example 1 is not clear, especially the "TIAN" character almost disappears. In Figure 9, that is, the pattern in Comparative Example 2 is defective. In Figure 10, that is, the gold stamping pattern in Comparative Example 3 spreads severely and spreads to the thermal sublimation pattern, and the pattern is not clear. In Figure 11, that is, the gold stamping pattern in Comparative Example 4 is missing, especially the character "材", and there is no gold stamping pattern. In Figure 12, that is, the pattern in Comparative Example 5 is severely missing. In Figure 18, that is, the gold stamping pattern in Comparative Example 6 is missing. It can be seen from this that the clarity of the fabrics in Comparative Examples 1 to 6 is significantly worse than that in Examples 1 to 12.

[0123] Ink Loading Performance Testing

[0124] Use an EPSON 3200 printer to set the color ink amount according to a fixed value based on the ICC curve. At the same time, print依次按照10%、20%、30%、40%、50%、60%、70%、80%、90%、100%的烫金胶水墨量进行打印,直至出现墨水流挂现象,记录为最高载墨量。

[0125] The test results are shown in Table 5 at the end of the implementation mode of the present invention.

[0126] This invention discloses a process for achieving one-time hot stamping and heat transfer printing. Hot melt adhesive ink and sublimation ink are simultaneously printed onto a hot stamping transfer film. In subsequent hot pressing, the sublimation ink transfers from the hot stamping transfer film onto the fabric to form a colored printed pattern. The hot melt adhesive ink, when heated, melts and becomes viscous, adhering the hot stamping transfer film to the fabric surface to form a hot stamping pattern. The entire process is completed in one step. The simultaneous printing of hot melt adhesive ink and sublimation ink further saves printing time and increases the efficiency of the entire production process. The entire process can be controlled by a computer, exhibiting a high degree of automation and ease of operation. The sublimation ink of this invention contains a styrene-maleic anhydride copolymer. The styrene-maleic anhydride copolymer, acrylic polymers, and acrylic modified resin contain carbonyl groups, which can increase the surface energy of the sublimation ink, helping to enhance the interaction forces between ink molecules, thereby reducing disordered diffusion and penetration of the ink and preventing the sublimation ink from penetrating like the hot melt adhesive ink. Meanwhile, the hot melt adhesive ink of this invention contains water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, and water-based hot melt acrylic resin, which can quickly form a film on the hot stamping transfer film, further preventing the penetration of sublimation ink. In addition, the styrene-maleic anhydride copolymer also has the technical effect of dispersing dyes, solving the problem of ink flowability.

[0127] Finally, it should be emphasized that the above description 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 can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0128] Table 1

[0129] Table 2

[0130] Table 3

[0131] Table 4

[0132] Table 5 Industrial applicability

[0133] The process method for achieving one-time hot stamping and heat transfer provided by this invention can be applied to the fields of inkjet printing hot stamping and heat transfer.

[0134] The present invention provides a process method for one-time hot stamping and heat transfer printing, which completes the entire process in one go, resulting in higher efficiency and avoiding the mutual bleeding of hot melt adhesive ink and sublimation ink during simultaneous printing, thus forming a more vibrant pattern color.

Claims

1. A process for implementing one-shot hot stamping and heat transfer printing, characterized in that, The process includes the following steps: S1: Simultaneously load hot melt adhesive ink and sublimation ink into a multi-head inkjet printer; S2: Install the hot stamping transfer film to be printed onto the inkjet printer; S3: Print the hot melt adhesive ink and the sublimation ink onto the hot stamping transfer film simultaneously according to the set pattern; S4: Dry the hot stamping transfer film with the printed pattern from step S3. S5: The hot stamping transfer film dried in step S4 is bonded to the fabric and subjected to hot pressing. S6: After cooling, remove the portion of the hot stamping transfer film that is not adhered to the fabric to obtain a colored printed fabric with a hot stamping effect. The sublimation ink contains one of styrene-maleic anhydride copolymer, acrylic polymer, and acrylic modified resin, and the hot melt adhesive ink contains at least one of water-based hot melt polycarbonate polyurethane, water-based hot melt polyether polyurethane, and water-based hot melt acrylic resin.

2. A process for implementing hot stamping and heat transfer printing in one pass as claimed in claim 1, wherein: A step S41 is provided between step S4 and step S5, and step S41 includes: cooling and rolling the dried hot stamping transfer film.

3. A process for implementing hot stamping and heat transfer printing in one pass as claimed in claim 1, wherein: 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 implementing hot stamping and heat transfer printing in one pass as claimed in claim 1, wherein: The hot pressing temperature in step S5 is 180℃ to 220℃, and the hot pressing time is 20s to 30s.

5. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The thermal sublimation ink contains 1% to 3% of the styrene-maleic anhydride copolymer, the acrylic polymer, or the modified acrylic resin by weight percentage.

6. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The hot melt adhesive ink contains 30% to 50% of the water-based hot melt polycarbonate polyurethane, the water-based hot melt polyether polyurethane, or the water-based hot melt acrylic resin by weight percentage.

7. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The glass transition temperature of the waterborne hot-melt polycarbonate polyurethane is -20°C to -10°C; the glass transition temperature of the waterborne hot-melt polyether polyurethane is -20°C to 60°C; and the glass transition temperature of the waterborne hot-melt acrylic resin is -20°C to 80°C.

8. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The hot-melt temperature of the water-based hot-melt polycarbonate is 100°C to 200°C; the hot-melt temperature of the water-based hot-melt polyether polyurethane is 120°C to 180°C; and the hot-melt temperature of the water-based hot-melt acrylic resin is 120°C to 210°C.

9. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The sublimation ink also includes disperse dye paste, a first surfactant, a first organic solvent, a first additive, and water.

10. A process for one-step hot stamping and heat transfer printing as claimed in any one of claims 1 to 4, wherein: The hot melt adhesive ink further includes a second surfactant, a second organic solvent, a second additive, and water; wherein the mass ratio of the water-based hot melt polycarbonate polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of the water-based hot melt polyether polyurethane to the second organic solvent is (30-50):(20-40); or the mass ratio of the water-based hot melt acrylic resin to the second organic solvent is (30-50):(20-40).

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