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 popular protective agent is transparent electrophoretic paint,
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.