18K gold jewelry will inevitably change color or fade after wearing for a period of time. This is not because the quality of the 18K gold bought is insufficient or there is any quality problem, but because the composition of the gold reacts with some external substances.
The discoloration or fading of 18K gold is closely related to human sweat. 99% of human sweat is water, and about 1% is waste and harmful substances in human body, such as chlorinated substances, lactic acid, urea ammonia and so on. When these substances come into contact with silver and copper in 18K gold, they will react chemically to form silver chloride and copper sulfide, and present dark black chemical salts. This chemical salt often falls off the diamond ring, polluting the wearer's skin and leaving a very obvious black stain on the skin.
1, when wearing a diamond ring inlaid with 18K gold, try to avoid contact with chemicals.
The primary color of 18K gold is golden yellow, while the white 18K gold we see is the color after electroplating. If articles containing chemical components (such as skin care products, hand sanitizer, vinegar, etc. ) frequent contact, the electroplating layer is easy to be corroded, exposing the primary color of 18K gold. Therefore, please take off the diamond ring when removing makeup, and don't wear it for cooking, washing clothes or doing chemical experiments. Before doing these things, put the diamond ring gently in the jewelry box dedicated to the diamond ring.
2. Avoid collision or friction between the diamond ring and hard objects such as metal.
Although diamonds are hard, they may also have cracks. 18K precious metals such as gold and platinum will also be scratched due to friction, or extruded and deformed, resulting in an unsightly diamond ring. Therefore, when wearing a diamond ring, it is not advisable to do strenuous physical strength or exercise. This can not only wear elegant taste, but also protect the diamond ring from being damaged.
3. Avoid placing the diamond ring in an environment that is too cold or too hot.
Metal expands when heated and contracts when cooled, so diamond rings are affected by temperature. Putting the diamond ring in an over-cooled or over-heated environment will affect the firmness of the diamond inlay, and may even make the diamond loose and fall off, causing unnecessary losses. Therefore, don't put the diamond ring in a place that is too cold and overheated, and try to avoid going in and out of places with large temperature difference between hot and cold, such as cold storage and bathroom.
4, often gently wipe with a soft cloth, but avoid cleaning with hand sanitizer containing chemical components.
There are too many things to do, and it is inevitable to touch a lot of things. Therefore, diamond rings are more susceptible to dust or oil pollution. You can gently wipe it with a soft cloth at any time, but don't use hand sanitizer containing chemical components to avoid corrosion of precious metals. You can also go to the store where you buy diamond rings regularly and ask the staff to help you clean them and remove impurities such as dust and oil, which can not only avoid the damage of these impurities to the diamond ring, but also make the diamond ring look brand-new.
In other words, the maintenance of 18K gold wedding diamond ring is also a matter of attention when wearing it. As long as you can pay attention to these matters at ordinary times, it is the best maintenance for 18K gold diamond ring.
The discoloration or fading of 18K gold jewelry is closely related to human sweat. 99% of human sweat is water, and about 1% is wastes and harmful substances in human body, such as chloride, lactic acid, urea, urea, etc.
Ammonia, etc. When these substances come into contact with silver and copper in K-gold jewelry, they will react chemically to produce silver chloride and copper sulfide, and present dark black chemical salts.
These chemical salts are the main reason for the discoloration of K gold. This chemical salt often falls from K-gold jewelry, polluting the wearer's skin and leaving very obvious black spots on the skin.
Among them, Jintaifu is a merchant engaged in online diamond sales in Hongkong and Chinese mainland, integrating jewelry research and development, design, wholesale and sales. His home is an O2O sales model that combines "physical stores and online stores". Jintaifu Diamond pursues simplicity and fashion, and creates jewelry with oriental cultural and artistic colors, so that lovers all over the world can have unique Cupid diamond ornaments and witness their eternal love.
Some cosmetics also contain some fine hard particles, which can constitute another kind of dirt, thus wearing 18K gold jewelry. The factors of regional environment may also make gold jewelry lose its bright color. For example, in dry areas, the air contains a lot of fine dust, which will form a kind of "human sandpaper" after being polluted by human body, which can grind 18K gold jewelry into extremely fine debris and appear local black stains. What is worth mentioning is talcum powder or moisturizer.
It also contains similar particles, which will also overshadow the above-mentioned K-gold jewelry.
Extended data
First of all, the gold necklaces and pendants of 18K are not easy to fade, but they will turn black after being worn for a long time and look very faded. If it fades, it's fake.
Secondly, 18K gold necklace and pendant should be maintained:
1: I bought a pack of developing powder from a photographic equipment store. When I got home, I put a catty of clear water in a clean glassware, stirred it evenly, soaked the K-gold necklace, took it out in about 5- 10 minutes, rinsed it with clear water, and wiped it with a dry cloth, and it lit up.
2. Take 2g of fine salt, 7g of baking soda, 8g of bleaching powder, and 60ml of clear water, put the K-gold necklace into it after stirring evenly, soak it for about two hours, take it out, rinse it with clear water, and dry it with a cloth, which will be much brighter.
3. Go to the place of purchase for regular cleaning.