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Preparation method of silver product with colored surface

A technology of silver products and colors, applied in the direction of metal material coating process, etc., can solve the problems of yellowing and blackening of silver edges, loss of value, and failure of glaze to completely cover silver tires.

Active Publication Date: 2015-02-25
GUOJIN GOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The glaze on the surface of colored silver jewelry cannot completely cover the silver body, so any place where the silver edge is exposed is relatively easy to oxidize, and the oxidized silver edge will turn yellow and black, and lose its due value.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The invention provides a kind of preparation method of the silver product with color on the surface, comprises the following steps:

[0025] The surface of the degreased silver product is reacted with a coloring agent to obtain a silver product with a colored surface.

[0026] The invention utilizes the active chemical properties of silver to reflect different coloring reagents on the surface of silver products, so that the silver on the surface of silver products reacts with the coloring reagents to obtain reaction products of different colors, so that the surface of silver products presents different colors . In the present invention, preferably, potassium sulfide and ammonium chloride are used as the coloring reagent, the coloring reagent is reacted with the surface of the silver product, and the reaction product silver sulfide of jazz silver is obtained on the surface of the silver product, and the silver sulfide will be complexed The reaction forms a complex, whic...

Embodiment 1

[0049] At 8°C, place the silver product to be treated in a degreasing solution, which includes 5g / L of sodium carbonate, 2g / L of sodium hydroxide and 15g / L of washing spirit, and repeatedly smear and wipe the metal with absorbent cotton Rinse the surface with water until the metal surface shows a continuous water film to complete the degreasing of silver products;

[0050] Dissolve 1g of potassium sulfide and 1g of ammonium chloride in 10mL of water to obtain a colored solution;

[0051] Immerse the degreased silver product in the coloring solution, react for 5 minutes, smear sodium bicarbonate on the obtained silver product, and wipe it to obtain the silver product of jazz silver;

[0052] After finishing the coloring of the silver product, the silver product on the surface of the jazz silver obtained is cleaned with clear water, and the cleaned silver product is dried with a hair dryer at a temperature of 50° C.;

[0053] Put the dried silver product on the rotary turntable...

Embodiment 2

[0057] At 5°C, place the silver product to be treated in a degreasing solution, which includes 2g / L sodium carbonate, 5g / L sodium hydroxide and 20g / L washing spirit, and repeatedly smear and wipe the metal with absorbent cotton Rinse the surface with water until the metal surface shows a continuous water film to complete the degreasing of silver products;

[0058] Dissolve 2g of potassium sulfide and 5g of ammonium chloride in 25mL of water to obtain a colored solution;

[0059] Immerse the degreased silver product in the coloring solution, react for 8 minutes, smear sodium bicarbonate on the surface of the obtained silver product, and wipe it to obtain the silver product of jazz silver; after finishing the coloring of the silver product, the obtained Clean the silver products on the surface of jazz silver with clean water, and dry the cleaned silver products with a hair dryer at a temperature of 40°C;

[0060] Put the dried silver product on the rotary turntable, and spray t...

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PUM

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Abstract

The invention provides a preparation method of a silver product with a colored surface. The preparation method comprises the following steps: removing grease from the surface of a silver product, and then making a coloring agent carry out reactions with the surface of the silver product to obtain a silver product with a colored surface. The preparation method comprises the following specific steps: mixing potassium sulfide and ammonium chloride to prepare a mixed solution taken as the coloring agent; immersing a silver product into the coloring agent, soaking, and making the coloring agent carry out reactions with the silver of the silver product surface, wherein during the process the potassium sulfide reacts with the silver to generate silver sulfide, at the same time the ammonium chloride can assist the complexing action of silver sulfide, and finally a silver product with a jazz silver surface is obtained. The obtained jazz silver color silver product has a stable property in the air and will not be oxidized or faded.

Description

technical field [0001] The invention relates to the technical field of metal products, in particular to a method for preparing silver products with colored surfaces. Background technique [0002] Silver is a beautiful silver-white metal, it has good ductility, and its electrical conductivity and heat transfer are the highest among all metals. Due to the unique and excellent characteristics of silver, people once gave it double value as currency and decoration. The British pound and the silver dollar used before the liberation of our country are silver-based silver and copper alloys. Silvery white, with soft and bright luster, it is a favorite decoration of ethnic minorities, Buddhists and Muslims; silver jewelry is also the first choice for newborn babies from people of all nationalities in the country; The black silver jewelry inlaid with light blue turquoise brings people the infinite reverie of ancient civilization; in China, sterling silver jewelry has gradually become ...

Claims

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Application Information

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IPC IPC(8): C23C22/68
CPCC23C22/68
Inventor 廖斐鸣
Owner GUOJIN GOLD CO LTD
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