1. Jewelry should be changed frequently. Wearing the same piece of jewelry for a long time should be avoided, especially in hot summer, when the jewelry coating is exposed to sweat for a long time, it is easy to be eroded, so it is best to prepare multiple pieces of jewelry for frequent replacement.

2. Contact with chemicals, jewelry is easy to be damaged. The smell of bathing, chlorine gas for swimming and salt in seawater are all fine, so all accessories should be removed before bathing or swimming.

3. collision is easy to scratch, so be careful when storing. Don't overlap the decorations. Store in the original packaging bag or jewelry box with independent small squares to avoid rubbing against each other and scratching the surface of the flower.

4. Clean the jewelry irregularly, and sweep the jewelry surface with a soft and fine brush to remove surface stains.

Extended data

(1) classification:?

Gold plating (silver plating) can be divided into two categories according to different materials. One is gold plating (silver plating) of homogeneous materials, which refers to the surface treatment of gold (silver); The other is gold plating (silver plating) of heterogeneous materials, right?

Non-gold (silver) surface is treated with gold plating (silver). ?

(2) standard:?

The international standard of gold-plated jewelry is: the thickness of a good gold-plated layer is 18 micron to 25 micron, generally 2 micron to 3 micron, and if it is less than 0. 18 micron, it is inferior. ?

(3) Performance and maintenance:?

(1) Avoid friction, so as to avoid the surface layer falling off; ?

② Not suitable for direct contact with human sweat glands for a long time, and not suitable for wearing in summer; ?

③ Avoid direct contact with acid and alkali substances such as soap; ?

④ Keep away from cosmetics and avoid contact with cosmetics. ?

⑤ The hardness of gold-plated copper (silver) is high, and the hardness of gold-plated alloy (silver) is low, so care should be taken to avoid hard pulling when wearing it. ?

(4) Identification:?

1, look at the color: gold-plated (silver) jewelry generally has better gloss, higher brightness and lighter color than real gold and real silver. ?

2, weight measurement: the gold-plated (silver) in the hand is obviously much lighter than real gold and real silver jewelry. ?

3, listen to the sound: throw gold-plated (silver) jewelry on the desktop or on the ground, the sound is dull. The voice of real gold and silver is very clear. ?

The weight of real gold and silver jewelry is much heavier than that of gold-plated (silver), but its hardness is soft. Real gold and silver get brighter as you wear them, while gold plating (silver) is the opposite. ?

5. In addition, the copper-plated platinum jewelry is very similar to platinum jewelry, with higher gloss than platinum, smooth surface and never discoloration.

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