A method for preparing an aqueous frosting powder and a glass with a flash sand effect

Abstract

The present invention relates to the technical field of glass etching, and particularly relates to an aqueous frosting powder and a method for preparing flash sand effect glass. An aqueous frosting powder contains ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid. Among the solid acids, the mass percentage of p-toluenesulfonic acid is 30% to 85%, and the remainder is succinic acid. By mass percentage, ammonium bifluoride: 30% to 50%; ammonium fluoride: 8% to 15%; barium sulfate: 5% to 15%; solid acid: 20% to 40%; among the solid acids, the mass percentage of p-toluenesulfonic acid is 40% to 80%, and the remainder is succinic acid. Compared with the prior art, it does not need to use concentrated hydrochloric acid for ripening, and at the same time, it can produce a flash sand effect on both high-aluminum glass and soda-lime glass. The solid acid of the present invention synergistically cooperates with p-toluenesulfonic acid and succinic acid to prepare glass with high roughness and a flash sand effect.

Description

Technical Field

[0001] The present invention relates to the technical field of glass etching, and particularly relates to an aqueous frosting powder and a method for preparing flash sand effect glass. Background Art

[0002] With the development of 5G technology, due to the influence of the metal shell on the mobile phone signal, the metal appearance is no longer suitable as the mobile phone protective back cover. Glass, with its good feel and appearance, has high wear resistance, good plasticity and strength at the same time, and perfectly replaces the metal shell in the 5G era. Currently, more than 90% of the models in the market use glass as the back cover. Among them, the frosted (AG) glass back cover has a comfortable feel and a beautiful sand grain shape, and also has excellent anti-glare and defect covering capabilities, so it is highly favored by the market and manufacturers. Therefore, the frosted glass back cover has become the mainstream in the smart phone market.

[0003] Currently, the frosting powders used in the market are mainly divided into aqueous frosting powders and acidic frosting powders. The aqueous frosting powder refers to a frosting solution prepared by heating and curing after adding water; the acidic frosting powder refers to a frosting solution prepared by heating and curing after adding concentrated hydrochloric acid. The frosting solutions prepared by both should be used for glass etching frosting to prepare glass with a frosting effect.

[0004] For the preparation of the frosting solution with acidic frosting powder, it is easy to obtain a relatively high roughness (the average roughness is generally 2μm - 5μm) during the process of glass etching frosting, and the frosting particles are relatively large, with a flash sand effect. However, because the acidity of the frosting solution obtained from the acidic frosting powder is relatively strong, it is easy to cause over-etching of soda-lime glass, resulting in unstable yield. Moreover, during the process of curing the acidic frosting powder into a frosting solution, it needs to be cured with 36% concentrated hydrochloric acid, and the odor generated during the actual curing production process is too large, posing safety hazards and other problems.

[0005] For the aqueous frosting powder, only water is needed to prepare the frosting solution. Although this frosting powder does not produce too much odor, it can only meet the requirements of low roughness and small particle frosting (the average roughness is generally 0.1μm - 1μm), and the frosting effect of the frosted glass is relatively dull, unable to achieve the same effect as the acidic frosting powder, that is, it is difficult to produce a flash sand effect.

[0006] Therefore, aiming at the deficiencies of the prior art, it is very necessary to provide an aqueous frosting powder and a method for preparing glass with a flash sand effect to solve the deficiencies of the prior art. Summary of the Invention

[0007] One of the purposes of the present invention is to provide an aqueous frosting powder while avoiding the deficiencies of the prior art. This aqueous frosting powder has high safety, and can produce a flash sand effect on high-aluminum glass and soda-lime glass, and has the advantage of a wide application range.

[0008] The above object of the present invention is achieved by the following technical measures:

[0009] Provided is an aqueous frosting powder, which contains ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate.

[0010] Preferably, the above solid acid is p-toluenesulfonic acid and succinic acid. In the solid acid, the mass percentage of p-toluenesulfonic acid is 50% - 85%, and the balance is succinic acid.

[0011] Ammonium bifluoride: 30% - 50%;

[0012] Ammonium fluoride: 8% - 15%;

[0013] Solid acid: 20% - 40%;

[0014] Barium sulfate: the balance;

[0015] In the solid acid, the mass percentage of p-toluenesulfonic acid is 55% - 75%, and the balance is succinic acid.

[0016] Furthermore, by mass percentage,

[0017] Ammonium bifluoride: 40% - 48%;

[0018] Ammonium fluoride: 10% - 12%;

[0019] Solid acid: 25% - 35%;

[0020] Barium sulfate: the balance;

[0021] In the solid acid, the mass percentage of p-toluenesulfonic acid is 60% - 70%, and the balance is succinic acid.

[0022] Even further, by mass percentage,

[0023] Ammonium bifluoride: 47.5%;

[0024] Ammonium fluoride: 10.5%;

[0025] Solid acid: 32.7%;

[0026] Barium sulfate: the balance;

[0027] In the solid acid, the mass percentage of p-toluenesulfonic acid is 65%, and the balance is succinic acid.

[0028] An aqueous frosting powder of the present invention contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid. Compared with the prior art, it does not require the use of concentrated hydrochloric acid for aging, and at the same time, it can produce a flash sand effect on both high-aluminum glass and soda-lime glass. The solid acid of the present invention synergistically cooperates with p-toluenesulfonic acid and succinic acid to prepare glass with high roughness and a flash sand effect.

[0029] Another object of the present invention is to provide a method for preparing glass with a flash sand effect, avoiding the deficiencies of the prior art. The method for preparing glass with a flash sand effect of the present invention has high safety, and can produce a flash sand effect on high-aluminum glass and soda-lime glass, and has the advantage of a wide application range.

[0030] The above object of the present invention is achieved by the following technical measures:

[0031] Provide a method for preparing glass with a flash sand effect, using the above aqueous frosting powder.

[0032] In the method for preparing glass with a flash sand effect of the present invention, the aqueous frosting powder is first mixed with water, and then heated and aged to obtain a frosting solution.

[0033] Preferably, in the method for preparing glass with a flash sand effect of the present invention, the aqueous frosting powder and water are mixed in a weight ratio of 1:3 to 10, then heated to 58°C to 62°C, aged for 36h to 72h, and stirred every 2h to 4h during the aging process, and the stirring time each time is 60s to 120s, and finally a frosting solution is obtained.

[0034] The method for preparing glass with a flash sand effect of the present invention includes the following steps:

[0035] Step (1), put the glass to be frosted into a water jet.

[0036] Step (2), pickle the glass to be frosted with a pickling solution, and the pickling solution is composed of hydrofluoric acid, nitric acid, sulfuric acid, and water.

[0037] Step (3), rinse the glass to be frosted with water.

[0038] Step (4), soak the glass to be frosted with water at a temperature of 10°C to 18°C.

[0039] Step (5), use the frosting solution to perform frosting treatment on the glass to be frosted by the way of water jet overflow to obtain the treated glass.

[0040] Step (6), clean the treated glass with water to obtain glass with a flash sand effect.

[0041] Furthermore, the method for preparing glass with a flash sand effect of the present invention includes the following steps:

[0042] Step (1): Place the glass to be sandblasted into a water jet cutter.

[0043] Step (2): Pickle the glass to be sandblasted with a pickling solution, where the pickling solution consists of 1% - 5% hydrofluoric acid, 5% - 10% nitric acid, 1% - 3% sulfuric acid by mass percentage, and the balance is water; and the pickling parameters are specifically a temperature of 22°C - 32°C, using a spray method, and controlling the pickling line speed to be 0.5 m / s - 2 m / s.

[0044] Step (3): Rinse the glass to be sandblasted with water, and the rinsing parameters are a temperature of 12°C - 25°C, using a spray method, and controlling the rinsing line speed to be 0.5 m / s - 2 m / s.

[0045] Step (4): Immerse the glass to be sandblasted with water at a temperature of 10°C - 18°C; and the immersion parameters specifically use a horizontal transmission immersion method, and control the immersion line speed to be 0.5 m / s - 2 m / s.

[0046] Step (5): Use the above-mentioned sandblasting solution to perform sandblasting treatment on the glass to be sandblasted through the overflow method of the water jet cutter to obtain the treated glass; and the sandblasting treatment parameters are specifically that the number of water jet cutters is 4 - 6, the distance between the water jet cutters is 30 cm - 60 cm, control the sandblasting line speed to be 0.5 m / s - 2 m / s, and the sandblasting temperature is 22°C - 34°C.

[0047] Step (6): Clean the treated glass with water to obtain the glass with a flash sand effect; and the cleaning parameters are specifically using a spray method, and the cleaning line speed is 0.5 m / s - 2 m / s.

[0048] A method for preparing a glass with a flash sand effect according to the present invention is carried out using the above-mentioned aqueous sandblasting powder. Compared with the prior art, it does not require the use of concentrated hydrochloric acid for ripening, so the safety performance is high; at the same time, this preparation method can also produce a flash sand effect on both high-aluminum glass and soda-lime glass. Specific Embodiments

[0049] The technical solution of the present invention will be further described in conjunction with the following embodiments. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The raw materials, reagent materials, etc. used in the following embodiments can be obtained from conventional biochemical reagent stores or drug operating enterprises unless otherwise specified.

[0050] Example 1

[0051] An aqueous sandblasting powder contains ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0052] In the solid acid, the mass percentage of p-toluenesulfonic acid is 55% to 75%, and the balance is succinic acid.

[0053] A method for preparing flash sand effect glass, which first mixes an aqueous sand etching powder with water and then heats and matures it to obtain a sand etching solution.

[0054] The method for preparing flash sand effect glass includes the following steps:

[0055] Step (1): Place the glass to be sand etched into a water jet.

[0056] Step (2): Pickle the glass to be sand etched with a pickling solution, which is composed of hydrofluoric acid, nitric acid, sulfuric acid and water.

[0057] Step (3): Rinse the glass to be sand etched with water.

[0058] Step (4): Immerse the glass to be sand etched with water at a temperature of 10°C to 18°C.

[0059] Step (5): Use the sand etching solution to perform sand etching treatment on the glass to be sand etched by the overflow method of the water jet to obtain the treated glass.

[0060] Step (6): Clean the treated glass with water to obtain glass with a flash sand effect.

[0061] Among them, in step (1), the glass to be sand etched is specifically protected by spraying a protective oil on the side that does not need to be sand etched, and the side that needs to be sand etched is adsorbed and fixed with a suction cup for loading.

[0062] In the aqueous sand etching powder of the present invention, p-toluenesulfonic acid and succinic acid are used as acid regulators to make the aqueous sand etching powder in an acidic environment. Through the synergistic effect of p-toluenesulfonic acid and succinic acid in the present invention, the aqueous sand etching powder is matured to prepare a sand etching solution without adding concentrated hydrochloric acid. Through this sand etching solution, a flash sand effect can be produced on both high-aluminum glass and soda-lime glass.

[0063] Example 2

[0064] An aqueous sand etching powder contains ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0065] By mass percentage,

[0066] Ammonium bifluoride: 30% to 50%;

[0067] Ammonium fluoride: 8% to 15%;

[0068] Solid acid: 20% to 40%;

[0069] Barium sulfate: the balance;

[0070] In the solid acid, the mass percentage of p-toluenesulfonic acid is 55% - 75%, and the balance is succinic acid.

[0071] A method for preparing flash sand effect glass. First, mix water-based frosting powder and water at a weight ratio of 1:3 - 10, then heat to 58°C - 62°C, and then age for 36h - 72h. During the aging process, stir once every 2h - 4h, and the stirring time each time is 60s - 120s, finally obtaining the frosting solution.

[0072] The method for preparing flash sand effect glass includes the following steps:

[0073] Step (1): Place the glass to be frosted into the water jet.

[0074] Step (2): Pickle the glass to be frosted with the pickling solution. The pickling solution consists of 1% - 5% hydrofluoric acid, 5% - 10% nitric acid, 1% - 3% sulfuric acid by mass percentage, and the balance is water; and the pickling parameters are specifically a temperature of 22°C - 32°C, using a spraying method, and controlling the pickling line speed to be 0.5m / s - 2m / s.

[0075] Step (3): Rinse the glass to be frosted with water, and the rinsing parameters are a temperature of 12°C - 25°C, using a spraying method, and controlling the rinsing line speed to be 0.5m / s - 2m / s.

[0076] Step (4): Immerse the glass to be frosted with water at a temperature of 10°C - 18°C; and the immersion parameters specifically adopt a horizontal transmission immersion method, and control the immersion line speed to be 0.5m / s - 2m / s.

[0077] Step (5): Use the frosting solution to perform frosting treatment on the glass to be frosted through the overflow method of the water jet to obtain the treated glass; and the frosting treatment parameters are specifically that the number of water jets is 4 - 6, the distance between water jets is 30cm - 60cm, control the frosting line speed to be 0.5m / s - 2m / s, and the frosting temperature is 22°C - 34°C.

[0078] Step (6): Clean the treated glass with water to obtain the glass with flash sand effect; and the cleaning parameters are specifically using a spraying method, and the cleaning line speed is 0.5m / s - 2m / s.

[0079] It should be noted that for the common equipment where the water jet is used for glass frosting operation, and the water jet overflow mode is a conventional process in the art, those skilled in the art should know the effective operation principle. And for the number of water jets, the distance between water jets, the pickling line speed, the immersion washing line speed, the rinsing line speed, the frosting line speed, and the cleaning line speed are all parameter settings for glass frosting operation in the art. Therefore, those skilled in the art can determine the actual operation parameters of each step according to the specific parameters recorded in the embodiments of the present invention.

[0080] The frosting effect of the aqueous frosting powder in this embodiment is relatively good within the range of Example 1.

[0081] Example 3

[0082] An aqueous frosting powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0083] By mass percentage,

[0084] Ammonium bifluoride: 40% - 48%;

[0085] Ammonium fluoride: 10% - 12%;

[0086] Solid acid: 25% - 35%;

[0087] Barium sulfate: the balance;

[0088] In the solid acid, the mass percentage of p-toluenesulfonic acid is 60% - 70%, and the balance is succinic acid.

[0089] A method for preparing glass with a flash sand effect, first mixing the aqueous frosting powder and water in a weight ratio of 1:3 - 10, then heating to 58°C - 62°C, followed by aging for 36h - 72h, and stirring once every 2h - 4h during the aging process, with each stirring time being 60s - 120s, finally obtaining the frosting solution.

[0090] The method for preparing glass with a flash sand effect includes the following steps:

[0091] Step (1), placing the glass to be frosted in a water jet, and protecting one side of the glass to be frosted with protective oil;

[0092] Step (2), pickling the glass to be frosted with a pickling solution, which is composed of 1% - 5% hydrofluoric acid, 5% - 10% nitric acid, 1% - 3% sulfuric acid by mass percentage, and the balance is water; and the pickling parameters are specifically a temperature of 22°C - 32°C, using a spraying method, and controlling the pickling line speed to be 0.5m / s - 2m / s;

[0093] Step (3), rinse the glass to be sandblasted with water, and the rinsing parameters are that the temperature is 12°C to 25°C, the spraying method is adopted, and the rinsing line speed is 0.5 m / s to 2 m / s;

[0094] Step (4), soak the glass to be sandblasted with water at a temperature of 10°C to 18°C; and the specific soaking parameters are to adopt the horizontal transmission soaking method and control the soaking line speed to be 0.5 m / s to 2 m / s;

[0095] Step (5), use the sandblasting liquid to sandblast the glass to be sandblasted by means of water knife overflow to obtain the treated glass; and the specific sandblasting treatment parameters are that the number of water knives is 4 to 6, the distance between water knives is 30 cm to 60 cm, control the sandblasting line speed to be 0.5 m / s to 2 m / s, and the sandblasting temperature is 22°C to 34°C;

[0096] Step (6), clean the treated glass with water to obtain the glass with a flash sand effect; and the specific cleaning parameters are to adopt the spraying method and control the cleaning line speed to be 0.5 m / s to 2 m / s.

[0097] The sandblasting effect of the water-based sandblasting powder in this embodiment is better within the scope of Embodiment 1.

[0098] Embodiment 4

[0099] A water-based sandblasting powder contains ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0100] In terms of mass percentage,

[0101] Ammonium bifluoride: 47.5%;

[0102] Ammonium fluoride: 10.5%;

[0103] Solid acid: 32.7%;

[0104] Barium sulfate: the balance.

[0105] Among the solid acids, the mass percentages of p-toluenesulfonic acid and succinic acid are 65% and 35% respectively.

[0106] A method for preparing glass with a flash sand effect is to pre-mix the water-based sandblasting powder and water at a weight ratio of 1:7, then heat to 59.5°C for aging for 50 h, and stir once every 3 h during the aging process, and the stirring time for each time is 100 s, and finally obtain the sandblasting liquid.

[0107] This method for preparing glass with a flash sand effect includes the following steps:

[0108] Step (1), place the glass to be sandblasted in the water knife, and protect one side of the glass to be sandblasted with protective oil;

[0109] Step (2): Pickle the glass to be frosted with a pickling solution, which consists of 3% hydrofluoric acid, 7.5% nitric acid, 2.3% sulfuric acid by mass percentage, and the balance is water; and the pickling parameters are specifically a temperature of 28°C, a spraying method, and a pickling line speed of 1 m / s.

[0110] Step (3): Rinse the glass to be frosted with water, and the rinsing parameters are a temperature of 18.5°C, a spraying method, and a controlled rinsing line speed of 1 m / s.

[0111] Step (4): Immerse the glass to be frosted with water at a temperature of 15°C; and the immersion parameters are specifically a horizontal drive immersion method and a controlled immersion line speed of 1 m / s.

[0112] Step (5): Frost the glass to be frosted with a frosting solution by means of water jet overflow to obtain the treated glass; and the frosting treatment parameters are specifically 5 water jets, a water jet spacing of 45 cm, a controlled frosting line speed of 1 m / s, and a frosting temperature of 28°C.

[0113] Step (6): Clean the treated glass with water to obtain glass with a flash sand effect; and the cleaning parameters are specifically a spraying method and a controlled cleaning line speed of 1 m / s.

[0114] Example 5

[0115] An aqueous frosting powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0116] By mass percentage,

[0117] Ammonium bifluoride: 30%;

[0118] Ammonium fluoride: 15%;

[0119] Solid acid: 40%;

[0120] Barium sulfate: the balance;

[0121] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 50% and 50% respectively.

[0122] A method for preparing glass with a flash sand effect, premix an aqueous frosting powder and water at a weight ratio of 1:3, then heat to 58°C, cure for 36 h, and stir every 2 h during the curing process, and the stirring time each time is 60 s, finally obtaining a frosting solution.

[0123] The method for preparing glass with a flash sand effect includes the following steps:

[0124] Step (1): Place the glass to be sandblasted into a water jet cutter, and protect one side of the glass to be sandblasted with protective oil.

[0125] Step (2): Pickle the glass to be sandblasted with a pickling solution. The pickling solution consists of 1% hydrofluoric acid, 5% nitric acid, 1% sulfuric acid by mass percentage, and the balance is water. Moreover, the pickling parameters are specifically a temperature of 22°C, using a spraying method, and controlling the pickling line speed at 0.5 m / s.

[0126] Step (3): Rinse the glass to be sandblasted with water. The rinsing parameters are a temperature of 12°C, using a spraying method, and controlling the rinsing line speed at 0.5 m / s.

[0127] Step (4): Immerse the glass to be sandblasted with water at a temperature of 12°C. Moreover, the immersion parameters are specifically using a horizontal drive immersion method, and controlling the immersion line speed at 0.5 m / s.

[0128] Step (5): Use the sandblasting solution to perform sandblasting on the glass to be sandblasted through the overflow of the water jet cutter to obtain the treated glass. Moreover, the sandblasting treatment parameters are specifically 4 water jet cutters, a water jet cutter spacing of 30 cm, controlling the sandblasting line speed at 0.5 m / s, and a sandblasting temperature of 22°C.

[0129] Step (6): Clean the treated glass with water to obtain glass with a flash sand effect. Moreover, the cleaning parameters are specifically using a spraying method, and controlling the cleaning line speed at 0.5 m / s.

[0130] Example 6

[0131] An aqueous sandblasting powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0132] By mass percentage,

[0133] Ammonium bifluoride: 50%;

[0134] Ammonium fluoride: 8%;

[0135] Solid acid: 20%;

[0136] Barium sulfate: the balance;

[0137] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 85% and 15% respectively.

[0138] A method for preparing glass with a flash sand effect. First, mix the aqueous sandblasting powder and water at a weight ratio of 1:10, then heat to 62°C, and carry out aging for 72 h, and stir every 4 h during the aging process, and the stirring time each time is 120 s, and finally obtain the sandblasting solution.

[0139] The preparation method of the flash sand effect glass includes the following steps:

[0140] Step (1): Place the glass to be frosted in a water jet, and protect one side of the glass to be frosted with protective oil;

[0141] Step (2): Pickle the glass to be frosted with a pickling solution. The pickling solution is composed of 5% hydrofluoric acid, 10% nitric acid, 3% sulfuric acid, and the balance is water by mass percentage; and the pickling parameters are specifically a temperature of 32°C, a spraying method, and a pickling line speed of 2 m / s;

[0142] Step (3): Rinse the glass to be frosted with water, and the rinsing parameters are a temperature of 12°C, a spraying method, and a controlled rinsing line speed of 2 m / s;

[0143] Step (4): Immerse the glass to be frosted with water at a temperature of 25°C; and the immersion parameters are specifically a horizontal transmission immersion method, and a controlled immersion line speed of 2 m / s;

[0144] Step (5): Frost the glass to be frosted by the overflow method of the water jet with a frosting solution to obtain the treated glass; and the frosting treatment parameters are specifically 6 water jets, a water jet spacing of 60 cm, a controlled frosting line speed of 2 m / s, and a frosting temperature of 34°C;

[0145] Step (6): Clean the treated glass with water to obtain the glass with a flash sand effect; and the cleaning parameters are specifically a spraying method, and a controlled cleaning line speed of 2 m / s.

[0146] Example 7

[0147] An aqueous frosting powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0148] By mass percentage,

[0149] Ammonium bifluoride: 40%;

[0150] Ammonium fluoride: 12%;

[0151] Solid acid: 35%;

[0152] Barium sulfate: the balance;

[0153] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 55% and 45% respectively.

[0154] A method for preparing flash sand effect glass. First, mix water-based sand etching powder and water at a weight ratio of 1:7. Then, heat the mixture to 59.5 °C and age it for 50 h, stirring once every 3 h during the aging process, with each stirring time being 100 s, finally obtaining the sand etching solution.

[0155] The method for preparing flash sand effect glass includes the following steps:

[0156] Step (1): Place the glass to be sand etched into a water jet, and protect one side of the glass to be sand etched with protective oil.

[0157] Step (2): Pickle the glass to be sand etched with a pickling solution. The pickling solution consists of 3% hydrofluoric acid, 7.5% nitric acid, 2.3% sulfuric acid by mass percentage, and the balance is water. Moreover, the pickling parameters are specifically a temperature of 28 °C, using a spraying method, and controlling the pickling line speed at 1 m / s.

[0158] Step (3): Rinse the glass to be sand etched with water. The rinsing parameters are a temperature of 18.5 °C, using a spraying method, and controlling the rinsing line speed at 1 m / s.

[0159] Step (4): Immerse the glass to be sand etched with water at a temperature of 15 °C. Moreover, the immersion parameters are specifically using a horizontal drive immersion method and controlling the immersion line speed at 1 m / s.

[0160] Step (5): Use the sand etching solution to perform sand etching treatment on the glass to be sand etched through the overflow method of the water jet to obtain the treated glass. Moreover, the sand etching treatment parameters are specifically 5 water jets, a water jet spacing of 45 cm, controlling the sand etching line speed at 1 m / s, and a sand etching temperature of 28 °C.

[0161] Step (6): Clean the treated glass with water to obtain glass with a flash sand effect. Moreover, the cleaning parameters are specifically using a spraying method and a cleaning line speed of 1 m / s.

[0162] Example 8

[0163] A water-based sand etching powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0164] By mass percentage,

[0165] Ammonium bifluoride: 45%;

[0166] Ammonium fluoride: 10%;

[0167] Solid acid: 25%;

[0168] Barium sulfate: the balance;

[0169] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 75% and 25% respectively.

[0170] A method for preparing flash sand effect glass. First, mix aqueous sand etching powder and water at a weight ratio of 1:7, then heat to 59.5 °C, age for 50 h, and stir once every 3 h during the aging process, with each stirring time being 100 s, finally obtaining the sand etching solution.

[0171] The method for preparing flash sand effect glass includes the following steps:

[0172] Step (1): Place the glass to be sand etched into a water jet, and protect one side of the glass to be sand etched with protective oil;

[0173] Step (2): Pickle the glass to be sand etched with a pickling solution. The pickling solution consists of 3% hydrofluoric acid, 7.5% nitric acid, 2.3% sulfuric acid, and the balance is water; and the pickling parameters are specifically a temperature of 28 °C, using a spraying method, and controlling the pickling line speed to be 1 m / s;

[0174] Step (3): Rinse the glass to be sand etched with water, and the rinsing parameters are a temperature of 18.5 °C, using a spraying method, and controlling the rinsing line speed to be 1 m / s;

[0175] Step (4): Immerse the glass to be sand etched with water at a temperature of 15 °C; and the immersion parameters are specifically using a horizontal transmission immersion method, and the immersion line speed is 1 m / s;

[0176] Step (5): Use the sand etching solution to perform sand etching treatment on the glass to be sand etched through the overflow method of the water jet to obtain the treated glass; and the sand etching treatment parameters are specifically 5 water jets, the water jet spacing is 45 cm, controlling the sand etching line speed to be 1 m / s, and the sand etching temperature is 28 °C;

[0177] Step (6): Clean the treated glass with water to obtain the glass with flash sand effect; and the cleaning parameters are specifically using a spraying method, and controlling the cleaning line speed to be 1 m / s.

[0178] Example 9

[0179] An aqueous sand etching powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0180] By mass percentage,

[0181] Ammonium bifluoride: 47.5%;

[0182] Ammonium fluoride: 11.5%;

[0183] Solid acid: 32.7%;

[0184] Barium sulfate: the balance;

[0185] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 60% and 40% respectively.

[0186] A method for preparing flash sand effect glass. First, mix aqueous frosting powder and water at a weight ratio of 1:7, then heat to 59.5 °C, age for 50 h, and stir every 3 h during the aging process, with each stirring time being 100 s, finally obtaining a frosting solution.

[0187] The method for preparing flash sand effect glass includes the following steps:

[0188] Step (1): Place the glass to be frosted into a water jet, and protect one side of the glass to be frosted with protective oil;

[0189] Step (2): Pickle the glass to be frosted with a pickling solution. The pickling solution consists of 3% hydrofluoric acid, 7.5% nitric acid, 2.3% sulfuric acid, and the balance is water; and the pickling parameters are specifically a temperature of 28 °C, using a spraying method, and controlling the pickling line speed to be 1 m / s;

[0190] Step (3): Rinse the glass to be frosted with water, and the rinsing parameters are a temperature of 18.5 °C, using a spraying method, and controlling the rinsing line speed to be 1 m / s;

[0191] Step (4): Immerse the glass to be frosted with water at a temperature of 15 °C; and the immersion parameters are specifically using a horizontal transmission immersion method, and controlling the immersion line speed to be 1 m / s;

[0192] Step (5): Frost the glass to be frosted with the frosting solution by means of water jet overflow to obtain the treated glass; and the frosting treatment parameters are specifically 5 water jets, a water jet spacing of 45 cm, controlling the frosting line speed to be 1 m / s, and a frosting temperature of 28 °C;

[0193] Step (6): Wash the treated glass with water to obtain glass with a flash sand effect; and the cleaning parameters are specifically using a spraying method, and the cleaning line speed is 1 m / s.

[0194] Example 10

[0195] An aqueous frosting powder contains ammonium bifluoride, ammonium fluoride, solid acid, and barium sulfate; the solid acid is p-toluenesulfonic acid and succinic acid.

[0196] By mass percentage,

[0197] Ammonium bifluoride: 47.5%;

[0198] Ammonium fluoride: 11.5%;

[0199] Solid acid: 32.7%;

[0200] Barium sulfate: the balance;

[0201] In the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 70% and 30% respectively.

[0202] A method for preparing flash sand effect glass, first mixing water-based sand etching powder and water at a weight ratio of 1:7, then heating to 59.5 °C, aging for 50 h, and stirring once every 3 h during the aging process, and the stirring time each time is 100 s, finally obtaining a sand etching solution.

[0203] The method for preparing flash sand effect glass includes the following steps:

[0204] Step (1), placing the glass to be sand etched into a water jet, and protecting one side of the glass to be sand etched with protective oil;

[0205] Step (2), pickling the glass to be sand etched with a pickling solution, the pickling solution is composed of 3% hydrofluoric acid, 7.5% nitric acid, 2.3% sulfuric acid by mass percentage, and the balance is water; and the pickling parameters are specifically a temperature of 28 °C, using a spraying method, and controlling the pickling line speed to be 1 m / s;

[0206] Step (3), rinsing the glass to be sand etched with water, and the rinsing parameters are a temperature of 18.5 °C, using a spraying method, and controlling the rinsing line speed to be 1 m / s;

[0207] Step (4), immersing the glass to be sand etched with water at a temperature of 15 °C; and the immersion parameters are specifically using a horizontal transmission immersion method, and the immersion line speed is 1 m / s;

[0208] Step (5), performing sand etching treatment on the glass to be sand etched with the sand etching solution by means of water jet overflow to obtain the treated glass; and the sand etching treatment parameters are specifically 5 water jets, the water jet spacing is 45 cm, controlling the sand etching line speed to be 1 m / s, and the sand etching temperature is 28 °C;

[0209] Step (6), cleaning the treated glass with water to obtain glass with a flash sand effect; and the cleaning parameters are specifically using a spraying method, and the cleaning line speed is 1 m / s.

[0210] Comparative Example 1

[0211] A method for preparing flash sand effect glass, other features are the same as those in Example 4, the difference is only that the solid acid is p-toluenesulfonic acid.

[0212] Comparative Example 2

[0213] A method for preparing flash sand effect glass, with other features being the same as those in Example 4, except that the solid acid is succinic acid.

[0214] Comparative Example 3

[0215] A method for preparing flash sand effect glass, with other features being the same as those in Example 4, except that the proportion of the aqueous frosting powder is different, specifically as follows:

[0216] By mass percentage,

[0217] Ammonium bifluoride: 62%;

[0218] Ammonium fluoride: 15%;

[0219] Solid acid: 10%;

[0220] Barium sulfate: the balance.

[0221] Comparative Example 4

[0222] A method for preparing flash sand effect glass, with other features being the same as those in Example 4, except that the proportion of the aqueous frosting powder is different, specifically as follows.

[0223] By mass percentage,

[0224] Ammonium bifluoride: 20%;

[0225] Ammonium fluoride: 15%;

[0226] Solid acid: 55%;

[0227] Barium sulfate: the balance.

[0228] Comparative Example 5

[0229] A method for preparing flash sand effect glass, with other features being the same as those in Example 4, except that in the solid acid, the mass percentages of p-toluenesulfonic acid and succinic acid are 40% and 60% respectively.

[0230] Experiments and Results

[0231] Under the condition that other experimental conditions are the same, the aqueous frosting powders and preparation methods of Examples 4 - 10 and Comparative Examples 1 - 5 are used to perform frosting treatment on high-aluminum glass and soda-lime glass respectively, and the data of the treated glass are obtained as shown in Table 1 and Table 2.

[0232] Table 1. Performance data of high-aluminum glass treated by Examples 4 - 10 and Comparative Examples 1 - 5

[0233] Average roughness / μm Haze / % Transmittance / % Example 4 3.2 89.1 10.5 Example 5 2.9 87.5 12.1 Example 6 2.8 85.4 14.5 Example 7 2.7 86.3 12.9 Example 8 2.9 85.8 14.1 Example 9 2.7 86.1 12.9 Example 10 2.9 87.4 12.2 Comparative Example 1 0.3 47.2 52.6 Comparative Example 2 0.1 46.4 53.2 Comparative Example 3 1.4 59.3 40.5 Comparative Example 4 1.4 53.6 46.1 Comparative Example 5 1.3 51.7 48.2

[0234] Table 2. Performance data of soda-lime glass after treatment in Examples 4-10 and Comparative Examples 1-5

[0235]

[0236]

[0237] The average roughness of the present invention was measured using a roughness meter TR200; the haze and transmittance were measured by a Shenguang WGT-S transmittance and haze tester. In the industry, it is generally considered that when the average roughness is between 1.4 and 6.0 μm, it has a flash sand effect.

[0238] As can be seen from the above table, by using the aqueous frosting powder and its preparation method in Examples 4-10 of the present invention, flash sand glass with an average roughness between 2.7 μm and 3.2 μm was obtained after frosting high-aluminum glass; by using the aqueous frosting powder and its preparation method in Examples 4-10, flash sand glass with an average roughness between 3.0 μm and 3.4 μm was obtained after frosting soda-lime glass. Therefore, the aqueous frosting powder and its preparation method of the present invention can be effectively applied to soda-lime glass and high-aluminum glass to obtain flash sand effect glass that meets the requirements.

[0239] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An aqueous frosting powder, characterized in that: Containing ammonium bifluoride, ammonium fluoride, solid acid and barium sulfate; The solid acid is p-toluenesulfonic acid and succinic acid; In terms of mass percentage, Ammonium bifluoride: 30% - 50%; Ammonium fluoride: 8% - 15%; Solid acid: 20% - 40%; Barium sulfate: the balance; In the solid acid, the mass percentage of p-toluenesulfonic acid is 55% - 75%, and the remainder is succinic acid.

2. The aqueous frosting powder according to claim 1, wherein: In terms of mass percentage, Ammonium bifluoride: 40% - 48%; Ammonium fluoride: 10% - 12%; Solid acid: 25% - 35%; Barium sulfate: the balance; In the solid acid, the mass percentage of p-toluenesulfonic acid is 60% - 70%, and the remainder is succinic acid.

3. The aqueous frosting powder according to claim 2, characterized in that: In terms of mass percentage, Ammonium bifluoride: 47.5%; Ammonium fluoride: 10.5%; Solid acid: 32.7%; Barium sulfate: the balance; In the solid acid, the mass percentage of p-toluenesulfonic acid is 65%, and the remainder is succinic acid.

4. A method for preparing flash sand effect glass, characterized in that: Using the aqueous frosting powder as described in any one of claims 1 to 3.

5. The method for preparing the flash sand effect glass according to claim 4, characterized in that: Previously, by mixing the aqueous frosting powder with water and then heating and curing, a frosting solution is obtained.

6. The method for preparing the flash sand effect glass according to claim 5, characterized in that: Previously, mix the aqueous frosting powder and water at a weight ratio of 1:3 - 10, then heat to 58°C - 62°C, and then cure for 36h - 72h, and stir once every 2h - 4h during the curing process, and the stirring time each time is 60s - 120s, and finally a frosting solution is obtained.

7. The method for preparing flash sand effect glass according to claim 6, characterized in that, Including the following steps: Step (1), put the glass to be frosted into the water jet; Step (2), pickle the glass to be frosted with an acid pickling solution, and the acid pickling solution is composed of hydrofluoric acid, nitric acid, sulfuric acid and water; Step (3), rinse the glass to be frosted with water; Step (4), soak the glass to be frosted with water at a temperature of 10°C - 18°C; Step (5), use the frosting solution to perform frosting treatment on the glass to be frosted by the way of water jet overflow to obtain the treated glass; Step (6), clean the treated glass with water to obtain a glass with a flash sand effect.

8. The method for preparing flash sand effect glass according to claim 7, characterized in that, Including the following steps: Step (1), put the glass to be frosted into the water jet; Step (2), pickle the glass to be frosted with an acid pickling solution, and the acid pickling solution is composed of 1% - 5% hydrofluoric acid, 5% - 10% nitric acid, 1% - 3% sulfuric acid, and the balance is water by mass percentage; and the pickling parameters are specifically a temperature of 22°C - 32°C, using a spray method, and controlling the pickling line speed to be 0.5m / s - 2m / s; Step (3), rinse the glass to be frosted with water, and the rinsing parameters are a temperature of 12°C - 25°C, using a spray method, and controlling the rinsing line speed to be 0.5m / s - 2m / s; Step (4), soak the glass to be frosted with water at a temperature of 10°C - 18°C; and the soaking parameters specifically adopt a horizontal transmission soaking method, and control the soaking line speed to be 0.5m / s - 2m / s; Step (5), using the frosting liquid to perform frosting treatment on the glass to be frosted by the way of water jet overflow to obtain the treated glass; and the specific frosting treatment parameters are that the number of water jets is 4 to 6, the distance between water jets is 30 cm to 60 cm, the controlled frosting linear speed is 0.5 m / s to 2 m / s, and the frosting temperature is 22 °C to 34 °C; Step (6), using water to clean the treated glass to obtain the glass with a flash sand effect; and the specific cleaning parameters are that the spraying method is adopted and the cleaning linear speed is 0.5 m / s to 2 m / s.

Images