CN-121992390-A - Bronze ware distressing method

Abstract

The application relates to the field of bronze wares, in particular to an antique method of a bronze wares, which comprises the following steps of S1, cleaning the surface of the bronze wares, uniformly coating an etching agent on the surface of the cleaned bronze wares, standing to obtain oxidized bronze wares, S2, flushing the surface of the oxidized bronze wares until an eluate is clear, then soaking the oxidized bronze wares in sodium bicarbonate solution for 24 hours in the presence of pH of 7.5-8 to obtain a rust-forming bronze wares, and S3, washing and drying the rust-forming bronze wares to obtain the antique bronze wares, wherein the etching agent is at least one of silver nitrate, copper chloride and aspartic acid. According to the application, the surface of the bronze ware is corroded through the corrosion initiator, then the sodium bicarbonate is used for inducing the bronze ware to form the basic copper carbonate rust layer at the corrosion layer, and finally the worn bronze ware is obtained through washing and drying.

Inventors

• ZHANG QIN
• Shan Yiru
• CAO MING
• XIA KE

Assignees

• 宁波财经学院

Dates

Publication Date

20260508

Application Date

20260202

Claims (9)

1. 1.A method of bronze ware distressing comprising the steps of: S1, cleaning the surface of a bronze ware, uniformly coating an etching agent on the surface of the cleaned bronze ware, and standing to obtain an oxidized bronze ware; s2, washing the surface of the oxidized bronze ware until the eluate is clear, and then soaking the oxidized bronze ware in sodium bicarbonate solution for 24 hours to obtain a rust-forming bronze ware, wherein the pH value of the rust-forming bronze ware is 7.5-8; s3, washing and drying the rust-formed bronze ware to obtain an old bronze ware; The etching primer is at least one of silver nitrate, acetic acid and aspartic acid.
2. 2. A bronze ware distressing method according to claim 1, characterized in that said etching primer is silver nitrate.
3. 3. A bronze ware distressing method according to claim 1, characterized in that said etching primer is a mixture of silver nitrate and aspartic acid.
4. 4. A bronze ware distressing method according to claim 3, characterized in that the mixing mass ratio of silver nitrate and aspartic acid is 1 (0.5-1).
5. 5. A bronze ware distressing method according to claim 1, characterized in that the concentration of sodium bicarbonate is 1-3% by weight.
6. 6. A bronze ware distressing method according to claim 1, characterized in that in S2 the soaking temperature of the bronze ware is 70-80 ℃.
7. 7. The bronze ware distressing method according to claim 1, wherein in the step S3, after the rust-forming bronze ware is washed and dried, a color retention coating is further coated on the outer surface of the rust-forming bronze ware, so that the distressing bronze ware is obtained, wherein the color retention coating comprises 15-18% of color retention agent and 82-85% of diluent, the color retention agent is at least one of cerium citrate and polyvinyl butyral, and the diluent is a mixture of ethanol and water.
8. 8. The bronze ware distressing method according to claim 7, wherein said color retention agent is a mixture of cerium citrate and polyvinyl butyral.
9. 9. The bronze ware distressing method according to claim 8, wherein the mixing mass ratio of the cerium citrate and the polyvinyl butyral is (0.3-1.2): 1.

Description

Bronze ware distressing method Technical Field The application relates to the field of bronze wares, in particular to an distressing method of bronze wares. Background Bronze ware has extremely high value in the fields of cultural art, historical research, collection and the like. In the scenes of cultural relic restoration, film and television production, artistic creation and the like, the bronze ware is often required to be subjected to distressing treatment so as to achieve more realistic visual effect and historical atmosphere reduction, which has important significance for inheriting and exhibiting ancient culture. It can make people feel the charm of ancient civilization more intuitively, and promote the communication and propagation of culture. In terms of bronze ware distressing, the traditional technology is to use chemical agents such as copper sulfate solution for soaking, copper rust is generated through the chemical reaction of copper and copper sulfate to simulate the distressing effect, and acetic acid steam is utilized to fumigate the surface of the bronze ware, so that the copper is subjected to chemical reaction to form an appearance similar to natural rust. However, the conventional bronze ware distressing method has obvious drawbacks. The chemical soaking and fumigation method may cause uneven distressing, the color and the shape of patina are not natural enough, the true effect of years erosion is difficult to be accurately simulated, and the complex corrosion situation formed for a long time in the natural environment cannot be presented. The methods are difficult to meet the requirements of bronze ware for high simulation and distressing in the fields of cultural relic restoration, artistic creation and the like. Disclosure of Invention In order to improve the archaizing effect of the bronze ware, the application provides an antique method of the bronze ware. The application provides a bronze ware distressing method, which adopts the following technical scheme: A bronze ware distressing method comprising the steps of: S1, cleaning the surface of a bronze ware, uniformly coating an etching agent on the surface of the cleaned bronze ware, and standing to obtain an oxidized bronze ware; s2, washing the surface of the oxidized bronze ware until the eluate is clear, and then soaking the oxidized bronze ware in sodium bicarbonate solution for 24 hours to obtain a rust-forming bronze ware, wherein the pH value of the rust-forming bronze ware is 7.5-8; s3, washing and drying the rust-formed bronze ware to obtain an old bronze ware; The etching primer is at least one of silver nitrate, acetic acid and aspartic acid. Preferably, the etching initiator is silver nitrate. Through adopting above-mentioned technical scheme, clean the surface of bronze ware at first, provide clean substrate for the subsequent rust reaction, the rethread is at the surface coating corrosion inhibitor of bronze ware for bronze ware surface can form the erosion layer, wash the unnecessary corrosion inhibitor of bronze ware surface again and soak bronze ware in the sodium bicarbonate, the sodium bicarbonate can induce bronze ware in erosion layer department formation green or blue green basic copper carbonate rust layer as rust agent, finally through washing drying, make bronze ware surface rust layer stabilize, obtain the bronze ware of doing. Wherein acetic acid can provide a stable source of hydrogen ions, continuously dissolve oxide films on bronze surfaces, expose matrix metals, maintain a mild but continuous corrosive environment, and combine with dissolved copper ions to form basic copper acetate. Aspartic acid as an amino acid modifier, its amino and carboxyl groups sequester metal ions, form stable, water-soluble copper-aspartic acid complexes with Cu 2+ on the bronze surface and Cu 2+ that may be precipitated from the alloy, and the aspartic acid solution is weakly alkaline, providing a mild and relatively stable acidic environment. Silver nitrate is a strong oxidant, and by providing Ag + to directly oxidize copper, the generated elemental silver can further react with oxygen in the air to form rust phases such as silver oxide, silver hydroxide and the like, meanwhile, ag + can form a composite rust layer with oxides on the surface of a substrate, a natural gradual color system is formed on the surface of a bronze ware, and the color characteristics of 'green with brown and red with brown' of the natural bronze ware can be reduced, so that silver nitrate is preferable as an etching initiator. According to the application, the corrosion initiator is coated on the surface of the cleaned bronze ware, the corrosion is carried out on the surface of the bronze ware through the corrosion initiator, then the sodium bicarbonate is used as a rust forming agent, the bronze ware can be induced to form a green or blue-green basic copper carbonate rust layer at the black copper oxide layer, and finally the rust layer on the