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Joias de prata OEM JINGYING: Livre de níquel, Alto polonês, Manchar & Acabamentos resistentes à água

Postado em por Kingjy

Joias de prata OEM JINGYING: Livre de níquel, Alto polonês, Manchar & Acabamentos resistentes à água

Introdução

In today’s jewelry market, os consumidores exigem não apenas apelo estético, mas também segurança, durabilidade, e propriedades hipoalergênicas. Jingying, como fabricante líder de joias OEM, specializes in producing nickel-free silver jewelry com high-polish finishes, resistência a manchas, e water resistance. Este artigo explora nossos processos de fabricação avançados, seleção de materiais, and quality control measures that ensure premium-quality, amigável para a pele, and long-lasting jewelry.

1. Nickel-Free Silver Jewelry: Safety & Conformidade

1.1 Why Nickel-Free?

  • Skin Safety: Nickel is a common allergen, causing contact dermatitis in 10–20% of the population.

  • Conformidade regulatória: Meets EU Nickel Directive (ALCANÇAR), California Proposition 65, e outros padrões internacionais.

1.2 Materials Used in JINGYING’s Nickel-Free Jewelry

Material Composição Propriedades
925 Prata de lei 92.5% Prata + 7.5% Cobre (Nickel-Free Alloy) Hipoalergênico, tarnish-resistant with proper coating
Prata Argentium 93.5% Prata + 6.5% Germanium Highly tarnish-resistant, brighter than traditional sterling silver
Rhodium-Plated Silver 925 Prata + Rodium Plating Scratch-resistant, ultra-shiny, livre de níquel
Prata banhada a ouro 925 Prata + 18Chapeamento de ouro K Aparência luxuosa, nickel-free underlayer

1.3 Testing for Nickel Content

  • DMG Test (Dimethylglyoxime Spot Test) – Detects nickel leaching.

  • Xrf (Fluorescência de raios-X) Análise – Ensures compliance with international standards.

2. High-Polish Finishing Techniques

2.1 Processo de polimento

  1. Pré-polimento (Rough Finishing)

    • Caindo – Barrel polishing with stainless steel media for initial smoothing.

    • Arquivamento & Lixar – Removing casting seams with 600–1200 grit sandpaper.

  2. High-Polish Buffing

    • Muslin Wheel + Diamond Compound – Achieves mirror-like shine.

    • Ultrasonic Polishing – For intricate designs.

2.2 Advanced Finishing Options

  • Mirror Polish – Reflective, ultra-smooth surface.

  • Satin Finish – Soft, brushed look.

  • Florentine Finish – Cross-hatched texture.

3. Tarnish-Resistant Coatings

3.1 Why Jewelry Tarnishes?

  • Oxidação: Silver reacts with sulfur in the air, forming black silver sulfide.

  • Moisture & Chemicals: Perfume, suor, and chlorine accelerate tarnishing.

3.2 JINGYING’s Anti-Tarnish Solutions

Método Como funciona Benefícios
Protective Lacquer (E-Coating) Clear epoxy/polyurethane layer blocks air exposure Invisible shield, lasts 6–12 months
Rodium Plating Electroplated rhodium layer (0.1–0.3 microns) Scratch-resistant, ultra-bright, duradouro
Anti-Tarnish Silver Alloys (Argentium) Germanium reduces sulfur reaction Naturalmente, resistente a manchas, no coating needed
Benzotriazole (BTA) Passivação Chemical dip forms a protective molecular layer Extends shine between cleanings

3.3 Testing Tarnish Resistance

  • Teste de névoa salina (ASTM B117) – Simulates years of wear in 24–48 hours.

  • Sulfur Chamber Test – Accelerates tarnish formation for quality checks.

4. Water-Resistant Jewelry

4.1 Why Water Resistance Matters

  • Daily Wear: Showers, swimming, and handwashing can damage jewelry.

  • Longevidade: Prevents corrosion and loosening of gemstone settings.

4.2 JINGYING’s Waterproofing Techniques

✔ Soldagem a laser – Ensures secure seams (no solder weak points).
✔ Waterproof Sealants – Silicone-based coatings for added protection.
✔ Enhanced Prong Settings – Prevents gemstones from loosening in water.

4.3 Water Resistance Testing

  • Immersion Test – Submersion in water for 24 hours to check for damage.

  • Steam Test – Exposes jewelry to high humidity.

5. Controle de qualidade & Certificação

5.1 JINGYING’s QC Process

  1. Inspeção de Materiais – XRF testing for metal purity.

  2. Surface Check – Microscope inspection for polishing defects.

  3. Coating Adhesion Test – Tape peel-off (ASTM D3359).

  4. Use simulação – Taber abrasion test for scratch resistance.

5.2 Certificações

  • ISO 9001 – Quality management compliance.

  • SGS/RoHS Reports – Nickel-free verification.

6. Why Choose JINGYING OEM Jewelry?

✅ 100% Nickel-Free Guarantee - Seguro para a pele sensível.
✅ Premium Polish & Acabamentos – Mirror, cetim, Matte, ou texturizado.
✅ Long-Lasting Protection – Advanced tarnish & water resistance.
✅ Custom OEM Services – From CAD design to mass production.

Conclusão

JINGYING combines advanced metallurgy, precision polishing, e protective coatings to deliver alta qualidade, nickel-free silver jewelry that resists tarnishing and water damage. Seja para marcas de moda, varejistas, or private labels, our OEM services ensure durable, hipoalergênico, and stunning jewelry that meets global standards.

Interested in a quote or samples? Entre em contato com JINGYING hoje!