Because it is as stable as gold, it will not fade easily due to the influence of chemical products, but cleaning products such as detergents commonly found at home will darken the color of K gold.

It is recommended to take off the necklace when taking a bath. Moreover, some brands have insufficient K gold content, and those with poor quality may fade or even be corroded, so it is very important to choose a brand with good reputation and excellent quality.

K gold jewelry maintenance

1, avoid contact with chemicals, whether it is K gold or other metal jewelry, and try to avoid contact with chemicals such as detergent, laundry detergent, perfume and hair gel. So when you wash or make up, you should take off the K gold jewelry to avoid damage.

2, avoid pulling: K-gold is very plastic, so don't pull jewelry often during daily wear, so as not to damage the shape, especially the K-gold necklace. If you pull hard, it is likely to break the chain.

3. Custody: K gold jewelry should be placed in a dry environment, not too wet; Each piece of K-gold jewelry should be placed in a separate jewelry box to avoid scratches. If there is no special jewelry box for storage, K gold jewelry should be wrapped in fine flannel and put in a drawer. The storage environment of K gold jewelry should avoid contact with corrosive chemicals such as acid and alkali.

4, regular cleaning In fact, a better way to maintain K gold jewelry is to clean it regularly. You can soak K gold jewelry in warm soapy water, gently wipe off the grease with a soft brush, then rinse it with water and dry it with a hair dryer.

5, regular maintenance, regular maintenance here is sent to a professional jewelry store for maintenance.

The main component of K gold is 75% gold, so its own color is yellow. The discoloration of K-gold is due to the peeling off of the surface gold plating caused by friction during wearing, which will show the yellow color of K-gold itself. Generally, as long as you go to the store regularly to do K-gold jewelry maintenance, the above situation will not occur.

Extended data:

There are five ways to distinguish platinum from silver, as follows:

1, comparison method

Platinum is grayish white to the naked eye, with a hard texture and a hardness of 4.3. With naked eyes, the color of silver is clean white, the texture is fine and smooth, the hardness is lower than that of platinum, and the hardness is 2.7.

2. Look at this seal

Because every piece of jewelry must be engraved with a component seal, as long as it is Pt, platinum or Plat, it is platinum; If you see S or silver, it's silver. Also note that the symbol for copper and silver plating is SF.

Step 3 consider

This method can be used if the seal is blurred or has been cut off. The density of platinum is very high, the specific gravity is 2 1.4 kg/dm3, and that of silver is 10.49 kg/dm3. In this way, the weight of the same volume of silver is only half that of platinum, so it is easy to distinguish the two.

4. Cremation method

Sometimes the material is less, the weight on the hand is not obvious, and there is no seal at the same time, so this method has to be adopted. After platinum is heated or burned and cooled, its color remains unchanged; When silver is heated or burned and cooled, its color becomes moist red or black red.

5. Chemical methods

Grind platinum on the touchstone, and then drop a few drops with a mixture of nitric acid and hydrochloric acid. If there are wear marks, it means platinum. As for the fineness, there are only some differences in color. If this liquid is dropped on silverware, the traces of wear will dissolve.

Baidu Encyclopedia -k Gold-Identification Method