Manufacturing process of low-temperature yin-yang gold embossment stained paper

Abstract

The invention discloses a manufacturing process of low-temperature yin-yang gold embossment stained paper. The manufacturing process comprises the following steps: manufacturing a pattern layer and a film; preparing a screen plate; blending printing ink, wherein the printing ink comprises LED base oil, LED imitation negative gold (silver) printing ink, first barrier printing ink, second barrier printing ink and LED embossment printing ink; printing: printing a layer of LED base oil on the water transfer printing paper to obtain an LED base oil layer; carrying out first gold stamping on the LED bottom oil layer by adopting electrochemical aluminum foil to obtain a first gold stamping layer; printing LED imitation negative gold (silver) ink on the first gold stamping layer to obtain a first LED imitation negative gold (silver) layer; sequentially printing first barrier ink and second barrier ink on the first LED imitation cathode gold (silver) layer to obtain a barrier layer; printing a plurality of layers of LED embossment ink on the barrier layer according to the pattern layer and film information to obtain an LED embossment layer; and carrying out secondary gold stamping on the LED embossment layer by adopting an electrochemical aluminum foil, printing gloss oil, and coating a tearable film to obtain the Yin-Yang gold embossment stained paper. According to the scheme, the method has the advantages of simple process, low energy consumption and the like.

Description

Technical Field

[0001] The invention relates to the technical field of flower paper printing, in particular to a low-temperature yin-yang gold embossed flower paper manufacturing process. Background Art

[0002] Yin-Yang Gold Embossed Decal Paper is a kind of decorative paper with special decorative effect, which is widely used in the decoration of ceramics, glass, metal, plastic and other materials. Yin-Yang Gold Embossed Decal Paper has the characteristics of strong three-dimensional sense, bright gold effect and strong durability.

[0003] The traditional preparation process mainly includes: preparation of relief materials, printing and drying, labeling and firing, such as the public technology of "Patent Publication No. CN105946431A, Name: Production Process of Yin-Yang Gold Baked Label", which includes: preparation of relief materials: use relief powder, matte powder and ink oil to grind into a paste, and then use the relief powder box ink oil to prepare the relief material; printing: first print the bottom, then print the relief pattern after drying, and finally print the gold paste; after printing, place it in a ventilated and dry place for 24 hours and then cover it with oil; labeling: first paste the relief bottom on the baked product, dry it for 12 hours, put it into the furnace and bake it at a temperature of 590℃-615℃, then paste the gold paste, dry it for 10 hours, put it into the furnace and bake it at 500℃-510℃, and the Yin-Yang gold baked label is obtained after baking. At present, the existing technology has the following problems: First, traditional high-temperature Yin-Yang relief gold uses glass pigments and precious metal gold paste, and the raw materials are scarce and costly; second, due to the characteristics of the raw materials, traditional high-temperature Yin-Yang relief gold requires high temperature to produce a chemical reaction, and the baking temperature is 560-600°C, which has high energy consumption; third, traditional high-temperature Yin-Yang relief gold is completely compatible with glass after the chemical reaction produced by baking, and the defective products can only be returned to the furnace to make new glass bottles, which is a serious waste.

[0004] Therefore, it is urgent to propose a low-temperature yin-yang gold embossed paper production process with simple process and low energy consumption. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a low-temperature Yin-Yang gold embossed paper production process, and the technical solution adopted by the present invention is as follows:

[0006] A low-temperature yin-yang gold embossed paper production process, comprising the following steps:

[0007] According to the graphic information of the pattern required by the flower paper, make layers and films of any color respectively;

[0008] Several screens with different meshes and thicknesses are prepared according to any color layer and film;

[0009] Prepare ink for standby use; the ink includes LED primer, LED imitation negative gold ink or LED imitation negative silver ink, first barrier ink, second barrier ink and LED relief ink;

[0010] Printing process:

[0011] Selecting water transfer paper, and printing a layer of LED primer on the water transfer paper to obtain an LED primer layer; the thickness of the LED primer layer is less than or equal to 10 um;

[0012] The first hot stamping is performed on the LED base oil layer using an electrochemical aluminum foil to obtain a first hot stamping layer; the hot stamping temperature of the first hot stamping is 120-140° C., the pressure is 4-8 Pa, and the time is 1-3 s;

[0013] Printing LED imitation Yin gold ink or LED imitation Yin silver ink on the first hot stamping layer to obtain a corresponding first LED imitation Yin gold layer or first LED imitation Yin silver layer; the thickness of the first LED imitation Yin gold layer or the first LED imitation Yin silver layer is 10-15 um;

[0014] Printing a first barrier ink and a second barrier ink in sequence on the first LED imitation cathode gold layer or the first LED imitation cathode silver layer to obtain a barrier layer; the thickness of the first barrier ink is 5-10 um, and the thickness of the second barrier ink is 5-10 um;

[0015] Printing several layers of LED relief ink on the barrier layer according to the layer and the film to obtain an LED relief layer;

[0016] The LED relief layer is bronzing for the second time with electrochemical aluminum foil, and varnish is printed, and then a tearable film is printed to obtain yin-yang gold embossed paper; the bronzing temperature of the second bronzing is 120-140°C, the pressure is 4-8pa, and the time is 3-5s.

[0017] Furthermore, the LED primer includes 85% to 90% of a first polyurethane prepolymer, 3% to 10% of a photoinitiator and 1% to 5% of a first diluent; the first polyurethane prepolymer includes 20% of a polyurethane acrylic resin, 25% of an acrylic monomer, 20% of a polyester acrylate, 25% of an epoxy acrylate resin and 10% of an auxiliary prepolymer. The stirring time is controlled at 5 to 10 minutes, the stirring speed is controlled at 400 to 600 rpm, and the static defoaming is controlled at 10 minutes.

[0018] Furthermore, the LED imitation Yin-gold ink comprises 75-80% of a second polyurethane prepolymer, 3% to 10% of a photoinitiator, 3% to 10% of cyan imitation gold powder and 1% to 5% of a first diluent; or the LED imitation Yin-silver ink comprises 75-80% of a second polyurethane prepolymer, 3% to 10% of a photoinitiator, 3% to 10% of cyan imitation silver powder and 1% to 5% of a first diluent; the second polyurethane prepolymer comprises 20% of a polyurethane acrylic resin, 45% of an acrylic monomer, 25% of a polyester acrylate and 10% of an auxiliary agent prepolymer; when the LED imitation Yin-gold ink or the LED imitation Yin-silver ink is mixed, the stirring time is controlled to be 5 to 10 minutes, the stirring speed is controlled to be 400 to 600 rpm, and the defoaming time after stirring is controlled to be 10 minutes.

[0019] Furthermore, the first barrier epoxy ink includes 10% polyurethane acrylic resin, 20% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 2% curing agent and 3% second diluent; when the first barrier epoxy ink is mixed, the stirring time is controlled at 3-5 minutes, the stirring speed is controlled at 400-600 rpm, and the defoaming is controlled to be not less than 15 minutes after stirring.

[0020] Furthermore, the second barrier epoxy ink includes 10% polyurethane acrylic resin, 17% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 5% curing agent and 3% second diluent; when the second barrier epoxy ink is mixed, the stirring time is controlled at 3-5 minutes, the stirring speed is controlled at 400-600 rpm, and the defoaming is controlled to be not less than 15 minutes after mixing.

[0021] Furthermore, the LED relief ink comprises: 87-90% of relief resin, 3-10% of photoinitiator and 1-3% of first diluent; the relief resin comprises 20% of polyurethane acrylic resin, 20% of acrylic monomer, 40% of polyester acrylate, 10% of epoxy acrylate resin and 10% of auxiliary agent prepolymer; when the LED relief ink is mixed, the stirring time is controlled at 5-10 minutes, the stirring speed is controlled at 400-600 rpm, and the static defoaming is controlled to be not less than 10 minutes.

[0022] Furthermore, the auxiliary agent prepolymer includes one or more of a leveling agent, a defoaming agent, an anti-cratering agent, and an antioxidant; the photoinitiator is a benzoylformate photoinitiator; the first diluent is n-butyl acetate or isophorone; the second diluent is isophorone; and the curing agent is a modified amine curing agent.

[0023] Furthermore, the LED primer layer is printed with a 200-mesh screen; the first LED imitation negative gold layer or the first LED imitation negative silver layer is printed with a 300-mesh screen; the first barrier ink is printed with a 350-mesh screen; and the second barrier ink is printed with a 350-mesh screen.

[0024] Furthermore, the LED relief layer includes a first LED relief layer and a second LED relief layer which are printed sequentially; the first LED relief layer uses a 200-mesh screen to print 20-50um LED relief ink at lines or fonts less than 0.5mm in the pattern; the second LED relief layer uses a 150-mesh screen to print LED relief ink at lines or fonts greater than 0.5mm in the pattern.

[0025] An application of a Yin-Yang gold embossed flower prepared by adopting a low-temperature Yin-Yang gold embossed flower paper making process, wherein the Yin-Yang gold embossed flower is pasted on a product and baked and kept warm at 160-180°C for 30 minutes; the product is one of ceramics, glass, metal, and plastic.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The low-temperature yin-yang embossed gold process of the present invention adopts resin ink, and the gold surface is embossed with electrochemical aluminum foil, which is cheap.

[0028] (2) The present invention prints the first barrier ink and the second barrier ink on the first LED imitation negative gold (silver) layer in sequence, wherein the first barrier ink is used to improve the adhesion between the base oil hot stamping layer and the second barrier oil; in addition, the second barrier ink is used to block the adhesion of the first barrier. Since the content of the modified amine curing agent in the first barrier ink is low, the epoxy resin and the curing agent produce a moderate cross-linking reaction and have good adhesion; the content of the modified amine curing agent in the second barrier ink is relatively high, and the epoxy and the curing agent produce an excessive cross-linking reaction, and the overall surface of the second barrier ink is hard after curing; after the first and second barriers are printed with different ink formulas, it is ensured that the first hot stamping has adhesion with the subsequent relief ink, and it is also ensured that no electroplated aluminum is left on the surface of the second barrier oil after the relief hot stamping. In the present invention, because the electroplated aluminum film has a release glue layer, the release glue temperature must be reached during the hot stamping process to instantly bond with the polyurethane surface, and the electroplated aluminum layer cannot be left on the surface of other inks.

[0029] (3) The present invention adopts a baking temperature of 160-200° C., so that the Yin-Yang gold embossed paper can be pasted on products such as ceramics, glass, metal, and plastic, which saves a lot of energy and has no VOC emissions.

[0030] (4) The present invention uses LED relief ink that can be used multiple times for relief printing, and uses electrochemical aluminum foil for display; since the imitation Yin-Yang gold (silver) is semi-matte, the electrochemical aluminum foil has a bright effect, so as to achieve the effect of displaying Yin-Yang gold.

[0031] (5) The present invention adopts two hot stamping processes. After the first hot stamping process, the electroplated aluminum foil is on the bright surface, which reduces the brightness by 40%-70% after printing the imitation Yin-Yang gold surface, i.e., a semi-matte effect. After the second hot stamping process, the electroplated aluminum foil is on the bright surface, reflecting the imitation Yin-Yang gold effect.

[0032] In summary, the present invention has the advantages of simple process, low energy consumption, etc., and has high practical value and promotion value in the field of flower paper printing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a logic flow chart of the present invention.

[0035] Figure 2 This is the image after LED primer is printed on the water transfer paper in the present invention.

[0036] Figure 3 This is the image after printing the LED imitation gold ink in the present invention.

[0037] Figure 4 This is the image after printing the LED relief ink in the present invention.

[0038] Figure 5 It is the image of the Yin-Yang gold embossed flower paper in the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of this application clearer, the present invention is further described below in conjunction with the accompanying drawings and embodiments, and the embodiments of the present invention include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0041] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0042] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0044] like Figures 1 to 5 As shown, this embodiment provides a low-temperature Yin-Yang gold embossed paper production process, which includes the following steps:

[0045] The first step is to make layers and films of any color according to the graphic information of the pattern required for the flower paper.

[0046] In the second step, several 150-350 mesh screens are prepared according to the layers and films of any color.

[0047] The third step is to prepare the ink for use. The ink includes LED primer, LED imitation Yin gold ink or LED imitation Yin silver ink, first barrier ink, second barrier ink and LED relief ink. Here, LED imitation Yin gold ink is taken as an example.

[0048] Specifically, the LED primer includes 85% to 90% of the first polyurethane prepolymer, 3% to 10% of the photoinitiator and 1% to 5% of the first diluent. Among them, the first polyurethane prepolymer includes 20% of polyurethane acrylic resin, 25% of acrylic monomer, 20% of polyester acrylate, 25% of epoxy acrylate resin and 10% of auxiliary prepolymer. Here, in the stirring vessel, the first polyester resin prepolymer is added first, and then the photoinitiator and the first diluent are added in sequence, and the stirring time is controlled within 10 minutes. Among them, polyester acrylic acid, polyurethane acrylic resin and epoxy resin are selected. First, polyurethane acrylic resin has advantages in weather resistance and chemical resistance, and acrylic monomer has excellent properties in wear resistance, flexibility and high gloss surface. Polyester acrylate has high-strength viscosity after baking, and a certain proportion of epoxy is added to neutralize and ensure effective adhesion on the surface of objects of different materials after baking. The advantages of the three materials are combined to ensure that the overall structure is stable after baking at 150-180°C, and the chemical resistance and weather resistance are excellent.

[0049] In addition, the LED imitation gold ink includes 75-80% of the second polyurethane prepolymer, 3% to 10% of the photoinitiator, 3% to 10% of the cyan imitation gold powder and 1% to 5% of the first diluent. Among them, the second polyurethane prepolymer includes 20% of polyurethane acrylic resin, 45% of acrylic monomer, 25% of polyester acrylate and 10% of the auxiliary agent prepolymer.

[0050] The first barrier ink of this embodiment includes 10% polyurethane acrylic resin, 20% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 2% curing agent and 3% second diluent. In addition, the second barrier ink includes 10% polyurethane acrylic resin, 17% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 5% curing agent and 3% second diluent. In this embodiment, since the content of modified amine curing agent in the first barrier ink is low, the epoxy resin and the curing agent produce a proper cross-linking reaction and good adhesion; the content of modified amine curing agent in the second barrier ink is relatively high, the epoxy and the curing agent produce an excessive cross-linking reaction, and the overall surface of the second barrier ink is hard after curing; after the first and second barriers are printed with different ink formulas, it is ensured that the first hot stamping and the subsequent relief ink have adhesion, and it is also ensured that the anodized aluminum will not be left on the surface of the second barrier oil after the relief hot stamping. In this embodiment, the useful life of the first barrier ink and the second barrier ink after mixing is affected by the activity of the curing agent, and the effective operating time of the epoxy system at room temperature is 6-8 hours.

[0051] The LED relief ink of this embodiment includes 87-90% relief resin, 3-10% photoinitiator and 1-3% first diluent. Among them, the relief resin includes 20% polyurethane acrylic resin, 20% acrylic monomer, 40% polyester acrylate, 10% epoxy acrylate resin and 10% auxiliary agent prepolymer. In this embodiment, the use time of the LED relief ink after mixing is affected by the activity of the curing agent, and the effective operation time of the epoxy system at room temperature is 6-8 hours.

[0052] Step 4: Printing:

[0053] (1) Select water transfer paper and use a 200-mesh screen to print a layer of LED primer on the water transfer paper to obtain an LED primer layer. The thickness of the LED primer layer is less than or equal to 10 um.

[0054] (2) Using electrochemical aluminum foil to perform the first hot stamping on the LED base oil layer to obtain the first hot stamping layer; the first hot stamping temperature is 120-140° C., the pressure is 4-8 Pa, and the time is 1-3 s.

[0055] (3) Using a 300-mesh screen to print LED imitation gold ink on the first hot stamping intermediate layer to obtain a first LED imitation gold layer, the thickness of the first LED imitation gold layer is 10-15 um.

[0056] (4) Printing a first barrier ink and a second barrier ink on the first LED imitation gold layer in sequence to obtain a barrier layer; the thickness of the first barrier ink is 5-10um, and the thickness of the second barrier ink is 5-10um. The first barrier ink is printed using a 350-mesh screen, and the second barrier ink is printed using a 350-mesh screen.

[0057] (5) Printing several layers of LED relief ink on the barrier layer according to the layer and the film to obtain an LED relief layer. In this embodiment, taking two layers as an example, the first LED relief layer uses a 200-mesh screen to print 20-50um LED relief ink at the position of the line or font less than 0.5mm in the pattern, and the second LED relief layer uses a 150-mesh screen to print LED relief ink at the position of the line or font greater than 0.5mm in the pattern.

[0058] (6) Use electrochemical aluminum foil to perform a second hot stamping on the LED relief layer, and print varnish to increase gloss and protection, and ensure that it can withstand oxidation, peeling, scratching and other tests; then print a tearable film (when applied to the material, it ensures that the flower paper is not easily deformed) to obtain the Yin-Yang gold relief flower paper. Among them, the hot stamping temperature of the second hot stamping is 120-140℃, the pressure is 4-8pa, and the time is 3-5s.

[0059] Next, you can paste the Yin-Yang gold embossed paper for use. First, paste the Yin-Yang gold embossed flowers on the product, and then bake and keep them warm at 160-180℃ for 30 minutes to get the final product. Here, the product can be ceramic, glass, metal, plastic, etc.

[0060] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any changes that adopt the design principles of the present invention and are made through non-creative labor on this basis should fall within the protection scope of the present invention.

Claims

1. A low-temperature Yin-Yang gold embossed paper production process, characterized in that: The following steps are involved: According to the graphic information of the pattern required by the flower paper, make layers and films of any color respectively; Several screens with different meshes and thicknesses are prepared according to any color layer and film; Prepare ink for standby use; the ink includes LED primer, LED imitation negative gold ink or LED imitation negative silver ink, first barrier ink, second barrier ink and LED relief ink; Printing process: Selecting water transfer paper, and printing a layer of LED primer on the water transfer paper to obtain an LED primer layer; the thickness of the LED primer layer is less than or equal to 10 um; The first hot stamping is performed on the LED base oil layer using an electrochemical aluminum foil to obtain a first hot stamping layer; the hot stamping temperature of the first hot stamping is 120-140° C., the pressure is 4-8 Pa, and the time is 1-3 s; Printing LED imitation Yin gold ink or LED imitation Yin silver ink on the first hot stamping layer to obtain a corresponding first LED imitation Yin gold layer or first LED imitation Yin silver layer; the thickness of the first LED imitation Yin gold layer or the first LED imitation Yin silver layer is 10-15 um; Printing a first barrier ink and a second barrier ink in sequence on the first LED imitation cathode gold layer or the first LED imitation cathode silver layer to obtain a barrier layer; The thickness of the first barrier ink is 5-10 um, and the thickness of the second barrier ink is 5-10 um; Printing several layers of LED relief ink on the barrier layer according to the layer and the film to obtain an LED relief layer; The LED relief layer is bronzing for the second time with electrochemical aluminum foil, and varnish is printed, and then a tearable film is printed to obtain yin-yang gold embossed paper; the bronzing temperature of the second bronzing is 120-140°C, the pressure is 4-8pa, and the time is 3-5s.

2. A low-temperature yin-yang gold embossed paper production process according to claim 1, characterized in that: The LED primer includes 85% to 90% of a first polyurethane prepolymer, 3% to 10% of a photoinitiator and 1% to 5% of a first diluent; the first polyurethane prepolymer includes 20% of a polyurethane acrylic resin, 25% of an acrylic monomer, 20% of a polyester acrylate, 25% of an epoxy acrylate resin and 10% of an auxiliary prepolymer. The stirring time is controlled at 5 to 10 minutes, the stirring speed is controlled at 400 to 600 rpm, and the static defoaming is controlled at 10 minutes.

3. A low-temperature yin-yang gold embossed paper making process according to claim 2, characterized in that: The LED imitation Yin-gold ink comprises 75-80% of a second polyurethane prepolymer, 3% to 10% of a photoinitiator, 3% to 10% of cyan imitation gold powder and 1% to 5% of a first diluent; or the LED imitation Yin-silver ink comprises 75-80% of a second polyurethane prepolymer, 3% to 10% of a photoinitiator, 3% to 10% of cyan imitation silver powder and 1% to 5% of a first diluent; the second polyurethane prepolymer comprises 20% of a polyurethane acrylic resin, 45% of an acrylic monomer, 25% of a polyester acrylate and 10% of an auxiliary agent prepolymer; when the LED imitation Yin-gold ink or the LED imitation Yin-silver ink is mixed, the stirring time is controlled to be 5 to 10 minutes, the stirring speed is controlled to be 400 to 600 rpm, and the defoaming is controlled to be 10 minutes after standing after stirring.

4. A low-temperature yin-yang gold embossed paper production process according to claim 3, characterized in that: The first barrier epoxy ink comprises 10% polyurethane acrylic resin, 20% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 2% curing agent and 3% second diluent; When the barrier epoxy ink is mixed for the first time, the stirring time is controlled to be 3-5 minutes, the stirring speed is controlled to be 400-600 rpm, and the defoaming is controlled to be not less than 15 minutes after stirring.

5. A low-temperature Yin-Yang gold embossed paper production process according to claim 4, characterized in that: The second barrier epoxy ink comprises 10% polyurethane acrylic resin, 17% acrylic monomer, 10% polyester acrylate, 45% epoxy acrylate resin, 10% auxiliary prepolymer, 5% curing agent and 3% second diluent; When the barrier epoxy ink is mixed for the second time, the stirring time is controlled to be 3-5 minutes, the stirring speed is controlled to be 400-600 rpm, and the defoaming time after mixing is controlled to be not less than 15 minutes.

6. A low-temperature Yin-Yang gold embossed paper production process according to claim 5, characterized in that: The LED relief ink comprises: 87-90% of relief resin, 3-10% of photoinitiator and 1-3% of first diluent; the relief resin comprises 20% of polyurethane acrylic resin, 20% of acrylic monomer, 40% of polyester acrylate, 10% of epoxy acrylate resin and 10% of auxiliary agent prepolymer; when the LED relief ink is mixed, the stirring time is controlled to be 5-10 minutes, the stirring speed is controlled to be 400-600 rpm, and the static defoaming is controlled to be not less than 10 minutes.

7. A low-temperature Yin-Yang gold embossed paper production process according to claim 6, characterized in that: The auxiliary agent prepolymer includes one or more of a leveling agent, a defoaming agent, an anti-cratering agent, and an antioxidant; the photoinitiator is a benzoyl formate photoinitiator; the first diluent is n-butyl acetate or isophorone; the second diluent is isophorone; and the curing agent is a modified amine curing agent.

8. The low-temperature Yin-Yang gold embossed paper production process according to claim 6, characterized in that: The LED primer layer is printed with a 200-mesh screen; the first LED imitation negative gold layer or the first LED imitation negative silver layer is printed with a 300-mesh screen; the first barrier ink is printed with a 350-mesh screen; and the second barrier ink is printed with a 350-mesh screen.

9. A low-temperature Yin-Yang gold embossed paper production process according to claim 6, 7 or 8, characterized in that: The LED relief layer includes a first LED relief layer and a second LED relief layer which are printed sequentially; the first LED relief layer uses a 200-mesh screen to print 20-50um LED relief ink at lines or fonts smaller than 0.5mm in the pattern; the second LED relief layer uses a 150-mesh screen to print LED relief ink at lines or fonts larger than 0.5mm in the pattern.

10. An application of a Yin-Yang gold embossed flower prepared by the low-temperature Yin-Yang gold embossed flower paper making process according to any one of claims 1 to 9, characterized in that: Paste the Yin-Yang gold relief flower on the product, and bake and keep it warm at 160-180°C for 30 minutes; the product is one of ceramics, glass, metal, and plastic.

Images