What should I do if the golden metal chain of the bag turns black

The blackening of the golden metal chain in the bag can be solved by wiping with toothpaste, soaking in white vinegar, cleaning with baking soda paste, treating with professional metal cleaners, polishing with lemon juice, and other methods. Factors such as metal oxidation, sweat corrosion, residual cosmetics, damp storage environment, and long-term lack of cleaning may cause the chain to turn black.

1. Toothpaste Wipe

Use white toothpaste without particles, dip a small amount with a soft bristled toothbrush, and gently brush the black areas of the shampoo. The friction agent in toothpaste can gently remove the oxide layer, and the fluoride component can form a temporary protective film. After cleaning, wipe it clean with a dry cloth to avoid water stains, which is suitable for handling slight oxidation and blackening situations.

2. Soak in white vinegar

Mix white vinegar with warm water in a 1:1 ratio, dip a cotton cloth in the liquid, wrap the chain and let it sit for 5 minutes. Acetic acid can decompose copper rust and other oxides, causing minimal damage to the gold plating layer. After processing, it is necessary to immediately rinse with clean water and thoroughly dry to prevent acidic substances from remaining and accelerating corrosion.

3. Baking Soda Paste Cleaning

Mix three tablespoons of baking soda with one tablespoon of water to make a paste, apply it to the blackened area with a cotton swab and let it react for 3 minutes. The weak alkalinity of sodium bicarbonate can neutralize acidic corrosive substances on metal surfaces and has a significant effect on deep-seated stubborn black stains. When operating, avoid leather parts and apply colorless hand cream for maintenance after cleaning.

4. Professional metal cleaner

Choose a metal care agent containing benzotriazole and wipe it unidirectionally with a microfiber cloth. This type of product can effectively remove sulfide oxide layers and form an antioxidant protective film. Before use, it is necessary to test in an inconspicuous place to avoid contact with paint or PVC materials.

5. Lemon Juice Polishing

Fresh lemon juice mixed with salt is used to make a natural polishing agent, and the blackened area is wiped in circles with a soft cloth. Citric acid can dissolve copper oxide, while table salt increases friction effectiveness. After processing, using olive oil for maintenance can delay re oxidation and is suitable for gold-plated chains with longer maintenance periods.

The chain part should be wrapped in non-woven fabric during daily storage to avoid long-term contact with air. Wipe the sweat stains on the surface of the chain with a glasses cloth every week, and store it with a moisture-proof agent during the rainy season. Avoid direct contact with the chain after makeup, and avoid metal parts when spraying perfume. When slight signs of oxidation are detected, wiping with an alcohol swab in a timely manner can effectively delay the blackening process. If there is extensive discoloration or rust on the chain, it is recommended to send it to a professional leather repair shop for electroplating repair.