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Preparation method of pearl covered with metal coated film on surface

A metal coating and pearl technology, applied in metal material coating process, sputtering coating, ion implantation coating and other directions, can solve the problems of reducing the quality and value of pearls, surface corrosion and tarnishing of pearls, etc., to improve the quality and Value, improve anti-aging ability, reduce gloss effect

Inactive Publication Date: 2011-05-18
天威英利 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the preservation, transportation and wearing of natural pearls, due to the tiny pits on the surface of pearls, it is very easy to absorb and deposit tiny particles in the environment, and the surface of pearls is also easily affected or corroded by air, light, sweat, cosmetics, etc. Causes yellowing, darkening, and tarnish, reducing the quality and value of pearls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation of embodiment 1 single-layer coating pearl

[0016] The preparation steps of single-layer coated pearls are as follows:

[0017] (1) The surface of the natural pearl is subjected to ultrasonic degreasing and decontamination treatment, then rinsed with distilled water, and then dried in an oven. The temperature of the oven is controlled at 30-80° C. for 10-30 minutes.

[0018] (2) Fix the dried natural pearls on the turntable in the hearth of the vacuum multi-arc ion coating machine, and use the vacuum unit to exhaust the atmosphere of the vacuum multi-arc ion coating machine, and keep the vacuum degree at 1.0-5.0×10 -2 Pa.

[0019] (3) Use infrared heating equipment to heat natural pearls to 20-40°C. At this time, adjust the negative bias voltage of the vacuum multi-arc ion coating machine to 1000-1300V, and at the same time to vacuum multi-arc at a speed of 10-100ml / min Inert gas is added into the ion coating machine, and ion bombardment is carried ou...

Embodiment 2

[0021] The preparation of embodiment 2 double-layer coated pearls

[0022] The preparation steps of double-layer coated pearls are as follows:

[0023] (1) The surface of the natural pearl is subjected to ultrasonic degreasing and decontamination treatment, then rinsed with distilled water, and then dried in an oven. The temperature of the oven is controlled at 30-80° C. for 10-30 minutes.

[0024] (2) Fix the dried natural pearls on the turntable in the hearth of the vacuum multi-arc ion coating machine, and use the vacuum unit to exhaust the atmosphere of the vacuum multi-arc ion coating machine, and keep the vacuum degree at 1.0-5.0×10 -2 Pa.

[0025] (3) Use infrared heating equipment to heat natural pearls to 20-40°C. At this time, adjust the negative bias voltage of the vacuum multi-arc ion coating machine to 1000-1300V, and at the same time to vacuum multi-arc at a speed of 10-100ml / min Inert gas is added into the ion coating machine, and ion bombardment is carried ou...

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Abstract

The invention discloses a preparation method of a pearl with a metal coated film on the surface. Tiny particles in the environment can be extremely easily adsorbed and deposited on the surface of a natural pearl which can be easily subjected to the influence or corrosion of air, light, sweat, cosmetics and the like and becomes yellow and tarnishes. The technical scheme adopted by the invention comprises the following steps: 1) removing oil and dirt on the surface of the natural pearl; 2) vacuumizing a vacuum multi-arc ion coating machine with a vacuum unit; 3) heating the natural pearl, introducing inert gas into the vacuum multi-arc ion coating machine, and performing ion bombardment on the natural pearl; and 4) continuing heating the natural pearl and plating at least one layer of metal coated film on the surface. Through the invention, a stable protection film layer with a dense structure is formed on the surface of the natural pearl, the anti-aging ability of the natural pearl is improved, and the pearl can not easily fade, become yellow or tarnish in the long-time storage and use process; and moreover, the flatness of the pearl surface is improved, and the quality and value of the pearl are effectively upgraded.

Description

technical field [0001] The invention relates to a pearl preparation process, in particular to a pearl preparation method whose surface is coated with a metal coating. Background technique [0002] During the preservation, transportation and wearing of natural pearls, due to the tiny pits on the surface of pearls, it is very easy to absorb and deposit tiny particles in the environment. At the same time, the surface of pearls is also easily affected or corroded by air, light, sweat, cosmetics, etc. Causes yellowing, darkening, tarnishing, and reduces the quality and value of pearls. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and to provide a preparation method for coating metal coatings on the surface of pearls, using natural pearls as the core base, and coating at least one layer of metal coatings on the surface that is firmly bonded with it. , The metal coating...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C14/18C23C14/02C23C14/58
Inventor 王文李颖
Owner 天威英利
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