Process method for frosted gold stamping on surface of glass substrate

Abstract

The invention provides a process method for frosted gold stamping of the surface of a glass substrate, and belongs to the technical field of glass processing and manufacturing. The method comprises the following steps: step 1, preparing a frosted film: putting raw material components for preparing the frosted film into a film making machine to prepare the frosted film; secondly, a metal-plated layer in a gold stamping material is attached to one face of the frosted film, the metal-plated layer and the frosted film are placed in a vacuum hot press to be subjected to extrusion compounding, and a frosted gold stamping composite material is prepared; 3, after the surface of the glass base material is cleaned, a silane coupling agent is smeared on the position needing gold stamping, and then the glass base material coated with the silane coupling agent and the frosted gold stamping composite material are jointly put into a gold stamping machine for hot-pressing transfer of gold stamping patterns; and 4, naturally cooling to room temperature to obtain the glass substrate with the frosted and gold-stamped surface. According to the method provided by the invention, the surface of the glass product has a dull polish gold stamping impression effect, the aesthetic property of the glass product can be remarkably improved, and the method is suitable for industrial large-scale application.

Description

Technical Field

[0001] The invention belongs to the technical field of glass product processing, and particularly relates to a process for frosting and hot stamping the surface of a glass substrate. Background Art

[0002] High-end glass products are usually hot-stamped on the outer surface of their side walls, and the products are beautified by hot-stamping patterns, text, lines, etc., forming a special metallic luster, which can significantly enhance the visual impact, highlight the printed content or improve the grade of the product. The materials commonly used for hot stamping are hot stamping paper or hot stamping film containing a metallized layer. The metallized layer in the hot stamping paper or hot stamping film is transferred to the surface of the substrate using the principle of hot pressing transfer, wherein the material of the substrate can be paper, cloth, plastic, glass, etc. However, when glass substrate is used as the substrate, due to its smooth surface and low surface energy, the hot stamping layer has poor adhesion to the surface of the glass substrate, making it easy to fall off during transportation or after accidental collision and impact, seriously affecting the process effect.

[0003] In addition to traditional processes, the prior art also provides several methods for hot stamping glass products. For example, patent CN110774815A provides a hot stamping process for glass bottles. This method involves frosting the glass surface before painting, applying ink, and hot stamping. However, the frosting step produces a large amount of acid wastewater, seriously polluting the environment. Patent CN102145626A provides a hot stamping process for glass surfaces. This method involves engraving a pattern on the glass surface, coating it with silica gel and gold solution, and then sintering it at high temperature. However, the high sintering temperature makes it more suitable for flat glass and has significant limitations for three-dimensional bottles and jars.

[0004] At the same time, most of the existing hot stamping papers have flat metal effects. If you need a matte frosted effect, you can use frosted hot stamping paper. However, the frosted hot stamping papers on the market currently add solid particle coatings in the color layer to form a frosted effect. However, the modulation of the color layer coating is relatively complicated, so there are few types of frosted hot stamping papers to choose from, which limits the application of the process. Summary of the Invention

[0005] In order to solve the above problems, the present application aims to provide a frosted hot stamping process for the surface of a glass substrate and suitable for three-dimensional glass containers such as bottles, jars and cups, which is pollution-free to the environment and does not harm human health throughout the process, has strong adhesion ability and does not fall off when impacted, as well as glass products made using this process.

[0006] In one aspect, the present application provides a process for frosted hot stamping on a glass substrate surface, comprising the following steps:

[0007] Step 1, preparing a frosted film: putting the raw material components for preparing a frosted film into a film making machine to make a frosted film;

[0008] Step 2: Laminating the metal-plated layer of the hot stamping material to one side of the frosted film, placing them in a vacuum hot press for extrusion and lamination, to produce a frosted hot stamping composite material;

[0009] Step 3: After cleaning the surface of the glass substrate, apply silane coupling agent to the location where hot stamping is required, then put the glass substrate coated with silane coupling agent and the frosted hot stamping composite material into the hot stamping machine, and use the hot stamping plate to perform hot pressing transfer of the hot stamping pattern;

[0010] Step 4: Cool naturally to room temperature to obtain a glass substrate with a frosted and gold-stamped surface;

[0011] Wherein, the metal-plated base material of the metal-plated layer in the hot stamping material is polypropylene;

[0012] The raw material components of the frosted film include, by mass, 30-60 parts of polyacrylate, 3-15 parts of polypropylene, 1-5 parts of maleic anhydride grafted polystyrene compatibilizer, 20-40 parts of frosted filler, 1-5 parts of nonionic surfactant, and 1-10 parts of film additive.

[0013] In one embodiment, after cooling, the hot stamping process provided in the present application can also use conventional methods to encapsulate the hot stamping pattern to prevent oxidation or further prevent the hot stamping from falling off, such as coating the surface of the hot stamping pattern with transparent resin or ink.

[0014] In one embodiment, the vacuum heat press and the hot stamping machine are both conventional commercially available equipment.

[0015] In one embodiment, the hot stamping plate can be a silicone plate, a copper plate or a zinc plate.

[0016] In one embodiment, the hot stamping material may be commercially available hot stamping paper or hot stamping film, which generally has the following structure:

[0017] Polyester layer: usually uses 12μm to 25μm thick biaxially oriented PET film, which is mainly used to support other coatings and facilitate continuous hot stamping during processing. It has the properties of anti-stretching and instantaneous high temperature resistance, ensuring that it will not be deformed or damaged during the hot stamping process;

[0018] Peel layer: generally made of silicone resin coating, its function is to allow the color layer, metallized layer and adhesive layer to quickly separate from the PET film after hot stamping and adhere to the surface of the hot stamped object;

[0019] Color layer: Typically composed of synthetic resin and dye. Common resins include polyurethane nitrocellulose, melamine formaldehyde resin, and modified rosin. During production, the resin and dye are dissolved in an organic solvent to create a color paste, which is then applied and dried. This paste provides color and protects the metallized image printed on the surface from oxidation.

[0020] Metallized layer: mainly electrochemical aluminum, which is deposited on the substrate by vacuum evaporation. The color of the color layer is given luster and changes after passing through the aluminum plating layer, which is the main structure of the metallic luster.

[0021] Glue layer: Some hot stamping papers also have a glue layer to increase the adhesion to the surface of the printing substrate.

[0022] It is understandable that the hot stamping paper or hot stamping film containing a glue layer will also be covered with a paper or film substrate on the glue layer to prevent the glue from sticking when winding. It is called hot stamping paper or hot stamping film according to the material. It needs to be peeled off and put into the hot stamping machine during hot stamping.

[0023] It is understandable that the frosted film in the present application can be bonded to the metal-plated layer via a glue layer, and the main material of the glue layer is usually a small amount of coated heat-sensitive glue.

[0024] It can be understood that the hot stamping plate of the hot stamping machine in this application is engraved with the pattern to be hot stamped. During hot pressing transfer, the frosted film layer of the frosted hot stamping composite material contacts the surface of the glass substrate, and the hot stamping plate contacts the polyester PET layer. After the hot pressing is completed, the frosted hot stamping composite material is separated from the glass substrate. The frosted hot stamping composite material at the position of the pattern to be hot stamped is separated from the polyester PET layer under the action of hot pressing and transferred to the surface of the glass substrate, thereby achieving the frosted hot stamping effect.

[0025] It is understood that the patterns described in this application include but are not limited to graphics, prints, lines, text, etc.

[0026] In one embodiment, among the raw material components of the frosted film, the polyacrylate is selected from one or more of polymethyl methacrylate, polyethyl methacrylate, polyhydroxymethyl methacrylate, and polyhydroxyethyl methacrylate.

[0027] In one embodiment, the molecular weight of the polyacrylate is 500,000 to 1,000,000.

[0028] In one embodiment, the molecular weight of the polypropylene is 80,000-150,000.

[0029] In one embodiment, the molecular weight of the maleic anhydride grafted polypropylene compatibilizer is 4000-5000.

[0030] In one embodiment, the frosted filler is selected from low-melting-point glass powder or silica powder.

[0031] In one embodiment, the nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and glycerol fatty acid ester.

[0032] Preferably, the nonionic surfactant is fatty alcohol polyoxyethylene ether, such as lauryl alcohol polyoxyethylene ether, hexadecyl alcohol polyoxyethylene ether, and stearyl alcohol polyoxyethylene ether.

[0033] In one embodiment, the film auxiliary agent is selected from one or more of a plasticizer, a stabilizer, an antioxidant, and a diluent.

[0034] In one embodiment, the plasticizer is a phthalate.

[0035] In one embodiment, the stabilizer is hydroquinone.

[0036] In one embodiment, the antioxidant is dilauryl dipropionate.

[0037] In one embodiment, the diluent is propylene glycol butyl ether.

[0038] In one embodiment, the additives may also include conventional industrial additives such as leveling agents, defoaming agents, and film-forming agents. Industrial chemicals that can simultaneously perform multiple functions may also be selected. For example, propylene glycol butyl ether can act as a diluent while also promoting leveling and film formation.

[0039] In one embodiment, in step 1, the frosted film is prepared by:

[0040] Weighing a frosted filler and a nonionic surfactant in parts by mass, mixing them evenly and grinding them to obtain a modified frosted filler;

[0041] Weigh the remaining raw material components required for the frosted film according to their mass fractions, mix and heat until melted, add the modified frosted filler and stir thoroughly to obtain a film-making stock solution;

[0042] The film-making stock solution is put into the film-making machine to extrude the film, and then the film is biaxially stretched and heat-set to obtain the frosted film.

[0043] In one embodiment, the particle size of the modified frosted filler obtained by grinding is 0.5 to 3 microns.

[0044] In one embodiment, the temperature for heating and melting the frosted raw material is set to 170-180°C.

[0045] In one embodiment, the extrusion temperature of the film making machine is set to 80-95°C.

[0046] In one embodiment, the thickness of the frosted film is 0.05-0.2 mm.

[0047] In one embodiment, in step 2, the vacuum degree of the vacuum hot press is set to 0.7-0.9 MPa and the temperature is set to 150-160°C.

[0048] In one embodiment, in step 3, the temperature of the hot stamping plate for hot pressing the hot stamping pattern is 170°C-190°C, and the pressing pressure is 3-5 kg / cm 2 The pressing time is 10s to 25s. The pressing time can be understood as the time it takes for the hot stamping plate to press the frosted hot stamping composite material on the surface of the glass substrate.

[0049] In one embodiment, in step three, the silane coupling agent is selected from one or more of KH550, KH560, KH602, and KH792.

[0050] In one embodiment, the silane coupling agent is applied in an appropriate amount, preferably without obvious traces of the coupling agent on the surface of the product after cooling.

[0051] In one embodiment, the surface of the glass substrate may be cleaned by water washing, such as ultrasonic water washing, followed by drying.

[0052] On the other hand, the present application provides a glass product with a frosted and gold-stamped surface, which is prepared by the above-mentioned process method.

[0053] In one embodiment, the glass product includes flat glass and a three-dimensional glass container.

[0054] In one embodiment, the glass container includes but is not limited to a glass bottle, a glass jar, a glass cup, a glass dish, and the like.

[0055] In one embodiment, the glass substrate used in the glass article includes silicate glass.

[0056] In one embodiment, the silicate glass includes, but is not limited to, soda-lime silicate glass and borosilicate glass.

[0057] This application has at least the following beneficial effects:

[0058] 1. The process for frosting and hot stamping a glass substrate surface provided by the present application is to laminate hot stamping paper with a frosted film made of specific raw material components and then perform hot stamping, so that the surface of the final glass product has a frosted and hot stamping effect, which can significantly improve the aesthetics of the glass product and highlight the visual effect of the product. The process is simple to operate and has low technical requirements. It is not limited by the color or material of the hot stamping paper, so that conventional commercially available hot stamping paper raw materials, including hot stamping paper of any color or gloss, can present a frosted effect. It also does not limit the shape of the glass substrate and is applicable to both flat glass and three-dimensional glass products such as bottles and jars. In addition, compared with traditional glass frosting effect processes, the preparation process does not produce pollutants, acid wastewater or harmful gases, and does not require manual spraying operations. It has great environmental value and does not harm human health. It is suitable for large-scale industrial applications, especially for glass manufacturing and processing enterprises that can produce frosted glass bottles at low cost or for glass manufacturing and processing enterprises that have difficulty in post-pollution treatment.

[0059] 2. The process method for frosted hot stamping on the surface of a glass substrate provided by the present application has a more uniform particle distribution in the frosted hot stamping layer of the optimized glass product, a better sensory effect, a clear pattern without blurring or adhesion, and an improved process qualification rate; at the same time, when preparing a frosted hot stamping composite material, the specific frosted film raw material components and vacuum hot pressing parameters can make the frosted film and the metal-plated layer in the hot stamping paper better fused until integrated, and thus no color separation or shedding will occur; and under the specific frosted film components and hot stamping hot pressing parameters, the specific hot stamping plate temperature, pressing pressure and pressing time can make the polymer component substrate in the frosted film quickly heat up to a molten state, thereby promoting the Each component forms a chemical bond with the silane coupling agent applied to the surface, and finally forms a more stable bond with the glass substrate under the connection of the coupling agent, which significantly improves the adhesion ability of the frosted hot stamping material on the surface of the glass substrate; in addition, the frosted filler modified with a suitable surfactant can be dispersed more evenly in the film. On the one hand, it can provide a frosted effect when compounded with the hot stamping paper, and increase the contact area with the metal-plated layer of the hot stamping paper, so as to bond more closely with the metal-plated layer and improve the compounding effect; on the other hand, the polyacrylate and modified frosted filler added to the frosted film can effectively improve the impact resistance of the hot stamping layer, making it difficult to fall off during transportation or after accidental collision and impact, thereby significantly improving the process effect. DETAILED DESCRIPTION

[0060] In order to more clearly illustrate the overall concept of the application, the following is described in detail in the form of embodiments. In the following description, a large amount of specific details are provided so that a more thorough understanding of the application is provided. However, it will be apparent to those skilled in the art that the application can be implemented without the need for one or more of these details. In other examples, in order to avoid confusion with the application, some technical features well known in the art are not described.

[0061] Unless otherwise specified, the production processes, experimental methods or detection methods involved in the embodiments of the present invention are all conventional methods in the prior art, and their names and / or abbreviations are conventional names in the field and are very clear and unambiguous in the relevant fields of use. Those skilled in the art can understand the conventional process steps based on the names and apply the corresponding equipment to implement them according to conventional conditions or the conditions recommended by the manufacturer.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0063] The various instruments, equipment, raw materials or reagents used in the examples of the present invention are not particularly limited in their sources and, unless otherwise specified, can be obtained from conventional commercial channels or prepared according to conventional methods well known to those skilled in the art.

[0064] Among them, in the following embodiments, the hot stamping material is commercially available hot stamping paper, which is composed of a multi-layer structure superimposed and coated in sequence, specifically a polyester PET layer, a peeling layer, a color layer, a metallized layer, a glue layer and a paper layer, wherein the metallized layer is vapor-plated aluminum and the substrate is polypropylene; the glass substrate is a soda-lime silicate glass bottle produced by the company; the vacuum hot press and the hot stamping machine are both commercially available equipment, wherein the hot stamping plate of the hot stamping machine is a detachable and replaceable copper plate, the shape of which is an arc that fits the glass bottle body; among the raw material components used for the frosted film, polyacrylates are all industrial-grade solid particles with a molecular weight of 500,000-1,000,000; polypropylene, high-density polyethylene, polystyrene, polycarbonate, etc. are all industrial-grade solid particles with a molecular weight of 80,000-150,000; the compatibilizer is an industrial-grade liquid with a molecular weight of 4,000-5,000; the surfactants are all liquid and commercially available; the low-melting-point glass powder or silica powder is an industrial-grade solid particle with a particle size of 5-13 microns; the remaining raw materials are all conventionally commercially available raw materials in this field.

[0065] Example 1

[0066] This embodiment provides a process for frosted hot stamping on a glass substrate surface. Specifically, the method includes the following steps:

[0067] Step 1: Prepare frosted film: Put the raw material components for preparing frosted film into a film making machine to make frosted film. The specific process is as follows:

[0068] The raw material components of the frosted film include:

[0069] 45 parts of polymethyl methacrylate, 8 parts of polypropylene, 2 parts of maleic anhydride grafted polypropylene compatibilizer, 35 parts of low melting point glass powder, 4 parts of lauryl alcohol polyoxyethylene ether, 2 parts of phthalate, 1 part of hydroquinone, 1 part of dilauryl dipropionate, 2 parts of propylene glycol butyl ether;

[0070] The above raw material components are made into frosted films, and the specific process is as follows:

[0071] 1) Preparation of modified frosted filler: Weigh low-melting-point glass powder and lauryl alcohol polyoxyethylene ether in parts by mass, mix them evenly, and then ultrafine grind them to a particle size of 0.5 to 3 μm to obtain modified low-melting-point glass powder;

[0072] 2) Weigh the remaining raw materials required for the frosted layer by mass, mix them, and heat them at 180°C until they are molten. Add the prepared modified low-melting-point glass powder and stir thoroughly for 15-20 minutes to obtain a film-forming stock solution;

[0073] 3) The film-making stock solution was added to a film-making machine and the extrusion temperature was set at 85° C. to extrude the film, and then the film was biaxially stretched and shaped to obtain a frosted film with a thickness of 0.1 mm.

[0074] Step 2: Peel off the paper layer of the hot stamping paper, and laminate the metal-plated layer to one side of the frosted film through the glue layer. Then, place the two layers together in a vacuum hot press for extrusion and compounding to form a frosted hot stamping composite material. The vacuum hot press is set at a vacuum degree of 0.8 MPa and a temperature of 150°C.

[0075] Step 3: ultrasonically clean the soda-lime silicate glass bottle and then dry it to clean the surface to be hot stamped. Then, apply an appropriate amount of silane coupling agent KH550 to the position on the surface of the glass bottle where hot stamping is required, and then put it into the hot stamping machine together with the frosted hot stamping composite material prepared in step 2. Use a hot stamping plate to hot-press the frosted hot stamping composite material to the surface of the glass bottle. The portion of the hot stamping composite material without a pattern and the PET film of the patterned portion are separated from the glass bottle, and a hot stamping pattern is formed. The hot stamping plate temperature is set to 170°C, and the pressing pressure is 4kg / cm 2 , the suppression time is 10s;

[0076] Step 4: After the hot stamping is completed, the bottle is naturally cooled to room temperature to obtain a glass bottle with a frosted hot stamping pattern on the bottle surface, which is recorded as Example 1#.

[0077] Examples 2 to 4

[0078] Examples 2 to 4 use the preparation method of Example 1 to prepare a series of frosted gold-stamping glass bottles. The only difference is that in the raw material composition of the frosted film, polymethyl methacrylate, polyhydroxyethyl methacrylate and polyhydroxymethyl methacrylate are used instead of polymethyl methacrylate, respectively. The frosted glass bottles obtained are respectively recorded as Examples 2# to 4#.

[0079] A series of frosted gold-stamped glass bottles were prepared by continuing to use the preparation method of Example 1, which are recorded as Examples 5# to 12#. The differences are as follows:

[0080] Example 5# uses 55 parts of polypropylene to replace the polymethyl methacrylate, polypropylene and maleic anhydride grafted polypropylene compatibilizer in the frosted film raw materials; Example 6# uses high-density polyethylene to replace the polypropylene in the frosted film raw materials; Examples 7# and 8# use octadecyl alcohol polyoxyethylene ether and dodecylphenol polyoxyethylene ether respectively to replace dodecyl alcohol polyoxyethylene ether in the frosted film raw materials; the hot stamping plate pressing time of Examples 9# to 12# is 5s, 15s, 20s and 30s respectively.

[0081] In addition to the above examples, this experiment also attempted to use other polymers to prepare frosted films, but the properties of the obtained films were not suitable for application. For example, a single-component low-density polyethylene was used as the polymer substrate, which had poor compatibility with the metal-plated layer of the hot stamping paper when preparing a frosted hot stamping composite material, making it difficult to composite. For another example, an anionic surfactant, fatty alcohol polyoxyethylene ether sodium sulfate, was used as a modifier for the frosted filler, and polymethyl methacrylate was used as the polymer substrate. As a result, defects such as discoloration and shrinkage of the film occurred during film preparation, making it difficult to produce a frosted film.

[0082] Comparative Example 1

[0083] This example adopts the traditional hot stamping process, that is, the hot stamping paper and glass bottle are directly put into the hot stamping machine. The hot stamping parameters are roughly the same as those in Example 1, and the pressing time is 1 second. The obtained hot stamping frosted glass bottle is recorded as Example D1#.

[0084] 100 frosted gold-stamped glass bottle samples were made from each of the above examples, and their process qualification, adhesion ability and impact resistance were tested.

[0085] The process qualification test method is to observe each frosted gold-stamped glass bottle sample at room temperature. If the filler in the frosted gold-stamped layer is evenly distributed, has a moderate gloss, and the gold-stamped pattern is clear, without defects such as adhesion, missing, falling off, blank spots, local wrinkles, or filler agglomeration, and no defects can be rubbed manually, the product is qualified. If any of the aforementioned defects are present, the product is unqualified. The number of qualified products is counted and the percentage of the total number of samples is calculated as the qualified rate.

[0086] The adhesion test is carried out using a pull-off adhesion tester. The test method is as follows: randomly select 5 samples from the samples that have passed the process, use a glass cutter to cut glass fragments of the same size (completely including the hot stamping pattern) from the hot stamping pattern position on the glass bottle body, and then use the adhesion tester to test, and take the average value as the final result.

[0087] Impact resistance was tested using a falling ball impact method, where a 535g steel ball was freely dropped vertically from the center of the sample to evaluate the ball's destruction height. To avoid the influence of other parameters, the sample used in this experiment was a flat glass substrate made of the same soda-lime silicate glass as in the embodiment, with a thickness identical to that of the sidewall of the glass bottle (approximately 3mm). The hot stamping plate was a square plane without a pattern, and the frosted hot stamping area covered 85% of the surface area of ​​the flat glass substrate.

[0088] The test results in the above examples are shown in Table 1:

[0089] Table 1

[0090] Example Pass rate Adhesion (MPa) Impact resistance (cm) 1# 98％ 4.8 76 2# 95％ 4.6 72 3# 97％ 5.0 71 4# 95％ 4.7 74 5# 91％ 2.5 65 6# 76％ 2.8 63 7# 82％ 3.5 52 8# 79％ 3.9 55 9# 88％ 4.0 68 10# 94％ 4.5 70 11# 85％ 4.3 69 12# 43％ 4.5 70 D1# 86％ 3.0 40

[0091] It can be seen from the data in Table 1 that when frosted gold-stamped glass products are prepared using the method provided by this application, the raw material composition of the frosted film has an important influence on the final gold-stamping effect. Under the specific polymer composition and modified frosted filler, the frosted film can simultaneously have good compositeness with the gold-plated layer of the hot stamping paper and adhesion to the glass substrate, and compared with the traditional hot stamping process (D1#), it shows significantly improved adhesion and impact resistance of the hot stamping layer, so that the hot stamping layer of the prepared glass product can not easily fall off while having a frosted gold-stamping pattern, thereby improving the appearance. Among them, Examples 1# to 4# have very good process qualification rate and mechanical properties, and are preferred embodiments of this application.

[0092] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A process for frosted hot stamping on a glass substrate, characterized in that: The steps include: Step 1, preparing a frosted film: putting the raw material components for preparing a frosted film into a film making machine to make a frosted film; Step 2: Laminating the metal-plated layer of the hot stamping material to one side of the frosted film, placing them in a vacuum hot press for extrusion and lamination, to produce a frosted hot stamping composite material; Step 3: After cleaning the surface of the glass substrate, apply silane coupling agent to the location where hot stamping is required, then put the glass substrate coated with silane coupling agent and the frosted hot stamping composite material into the hot stamping machine, and use the hot stamping plate to perform hot pressing transfer of the hot stamping pattern; Step 4: Cool naturally to room temperature to obtain a glass substrate with a frosted and gold-stamped surface; Among them, the metal-plated base material of the metal-plated layer in the hot stamping material is polypropylene; the raw material components of the frosted film, calculated by mass, include: 30 to 60 parts of polyacrylate, 3 to 15 parts of polypropylene, 1 to 5 parts of maleic anhydride grafted polystyrene compatibilizer, 20 to 40 parts of frosted filler, 1 to 5 parts of non-ionic surfactant, and 1 to 10 parts of film additive.

2. The process according to claim 1, characterized in that: Among the raw material components of the frosted film, the polyacrylate is selected from one or more of polymethyl methacrylate, polyethyl methacrylate, polyhydroxymethyl methacrylate, and polyhydroxyethyl methacrylate; And / or, the frosted filler is selected from low-melting-point glass powder or silica powder; And / or, the nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and glycerol fatty acid ester; And / or, the film auxiliary agent is selected from one or more of plasticizers, stabilizers, antioxidants, and diluents.

3. The process according to claim 2, characterized in that: In the step 1, the preparation method of the frosted film is as follows: The frosted filler and non-ionic surfactant are weighed in parts by mass, mixed and ground to obtain a modified frosted filler; the remaining raw material components required for the frosted film are weighed in parts by mass, mixed and heated to melt, and the modified frosted filler is added and stirred thoroughly to obtain a film-making stock solution; the film-making stock solution is put into a film-making machine for extrusion and casting, and then the frosted film is obtained after biaxial stretching and heat setting.

4. The process according to claim 3, characterized in that: The particle size of the modified frosted filler obtained by grinding is 0.5 to 3 microns; and / or, the extrusion temperature of the film making machine is set to 80-95°C; And / or, the thickness of the frosted film is 0.05-0.2 mm.

5. The process according to claim 1, characterized in that: In the step 2, the vacuum degree of the vacuum hot press is set to 0.7-0.9 MPa and the temperature is set to 150-160°C.

6. The process according to claim 1, characterized in that: In the step 3, the temperature of the hot stamping plate for hot pressing the hot stamping pattern is 170-190°C, and the pressing pressure is 3-5 kg / cm 2 , the pressing time is 10s to 20s.

7. The process according to claim 1, characterized in that: In the step 3, the silane coupling agent is selected from one or more of KH550, KH560, KH602, and KH792.

8. A glass product with frosted and gold-stamped surface, characterized in that: The method is prepared by the process according to any one of claims 1 to 7.

9. The glass product according to claim 8, wherein: The glass products include flat glass and three-dimensional glass containers.

10. The glass product according to claim 8, wherein The glass substrate used in the glass product includes silicate glass.