A. Cleaning: It can be cleaned with a soft brush dipped in salad, but not with irritating products such as fluoride toothpaste and bleach.
B. Cleanliness: Pure gold or K-gold products, please don't touch articles that will produce white spots such as perming water.
C. Cleaning: soak the diamond in warm soapy water for about 20 minutes, gently brush the bottom of the base with a soft brush, and then clean it with clear water (remember to plug the running hole first to prevent the gem from falling off).
D. Maintenance: Pay attention to whether the diamond will loosen after cleaning, and go to the jewelry store every six months to have your jewelry thoroughly cleaned and inspected.
(1) Cleaning and maintenance of gold and silver jewelry
1. Cleaning and maintenance of gold jewelry: cleaning in Huang Fang jewelry store, and ultrasonic cleaning. The standard formula for cleaning is: 40C warm water 1000ml, anhydrous chromic anhydride 100g, and 30ml sulfuric acid. The method is: hang the plastic piece number on the jewelry, then thread it with copper wire, hang it on the stainless steel bar and hang it in the washing tank for 80- 120 seconds. The method of manual cleaning is to soak jewelry in 30% sulfuric acid cleaning solution for 5 minutes, then rinse it with a brush, then rinse it under tap water for 5 minutes, and finally soak it in 20% shampoo or detergent for 10 minute, rinse it off, rinse it with clear water for 20 minutes, and dry it with silk.
2. Cleaning and maintenance of silver jewelry: use 50C warm water 1000 ml, 200 ml phosphoric acid and 30g concentrated washing powder, pour the mixed solution into the ultrasonic cleaning tank for cleaning 100 second, and then rinse it with clear water.
Household cleaning: pour the cleaning liquid into the container, soak the silver jewelry for 10 minute, then rinse with toothbrush, and then rinse with clean water for 10 minute.
(2) Cleaning and maintenance of jewelry and jade articles
Wash with 20% neutral detergent or shampoo, and knock at the liquid temperature of 25. Soak for 10 minute, then brush slowly with a toothbrush, remove sweat and dirt and soak in tap water for 20 minutes.
(3) Maintenance of jewelry and jade articles
Gold and silver jewelry and jade articles should be dried with silk after being rinsed with clear water. If there are scratches and scratches on the gold products, you can apply a layer of white jade toothpaste, wipe it with silk cloth, polish it with cloth grinding wheel or polish it with green oil. Chains and gold earrings can be coated with watch oil or protective film on hooks and screws.
Paraffin wax is the common protective film for glazing. Pink nail polish is a common protective film for gemstones. Nail polish is widely used, such as brooches, rings, earrings, brooches, cufflinks and so on. At present, the more popular protective agents are transparent electrophoretic paint and B0l propylene varnish; SOZ polyurethane varnish. More suitable for high-grade gems, such as jade, ruby, sapphire, aquamarine, emerald and so on.
(4) Cleaning and maintenance of pearls
Pearls should be wiped with soft paper or cloth containing silicone oil. For pearls with serious blackening and tarnishing, they should be soaked in 20% salt water for one hour, then rinsed with 3% hydrochloric acid solution, and then rinsed with clean water 10 minute. Pearls should not be exposed to the sun, so as to avoid hygienic storage of water and camphor.