ジュエリーニュース

Jingying OEMシルバージュエリー: ニッケルフリー, 高ポリッシュ, 変色します & 耐水性仕上げ

投稿しました による kingjy

Jingying OEMシルバージュエリー: ニッケルフリー, 高ポリッシュ, 変色します & 耐水性仕上げ

導入

In today’s jewelry market, 消費者は、美的魅力だけでなく、安全性も要求します, 耐久性, および低刺激性. ジンジー, 大手OEMジュエリーメーカーとして, specializes in producing nickel-free silver jewelry と high-polish finishes, 抵抗性を傷つけます, そして water resistance. この記事では、高度な製造プロセスについて説明します, 材料の選択, and quality control measures that ensure premium-quality, 肌に優しい, and long-lasting jewelry.

1. Nickel-Free Silver Jewelry: Safety & コンプライアンス

1.1 Why Nickel-Free?

  • 皮膚の安全: Nickel is a common allergen, causing contact dermatitis in 10–20% of the population.

  • Regulatory Compliance: Meets EU Nickel Directive (到着), カリフォルニアの提案 65, and other international standards.

1.2 Materials Used in JINGYING’s Nickel-Free Jewelry

材料 構成 プロパティ
925 スターリングシルバー 92.5% 銀 + 7.5% 銅 (Nickel-Free Alloy) 低刺激性, tarnish-resistant with proper coating
アルゼンチウムシルバー 93.5% 銀 + 6.5% Germanium Highly tarnish-resistant, brighter than traditional sterling silver
Rhodium-Plated Silver 925 銀 + ロジウムメッキ Scratch-resistant, ultra-shiny, ニッケルフリー
Gold-Plated Silver 925 銀 + 18Kゴールドメッキ 豪華な外観, nickel-free underlayer

1.3 Testing for Nickel Content

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

  • XRF (X線蛍光) 分析 – Ensures compliance with international standards.

2. High-Polish Finishing Techniques

2.1 Polishing Process

  1. 事前磨き (Rough Finishing)

    • タンブリング – Barrel polishing with stainless steel media for initial smoothing.

    • 提出 & サンディング – 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?

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

  • 水分 & Chemicals: Perfume, 汗, and chlorine accelerate tarnishing.

3.2 JINGYING’s Anti-Tarnish Solutions

方法 それがどのように機能するか 利点
Protective Lacquer (E-Coating) Clear epoxy/polyurethane layer blocks air exposure Invisible shield, lasts 6–12 months
ロジウムメッキ Electroplated rhodium layer (0.1–0.3ミクロン) Scratch-resistant, ultra-bright, long-lasting
Anti-Tarnish Silver Alloys (Argentium) Germanium reduces sulfur reaction 自然に変色している, no coating needed
Benzotriazole (BTA) Passivation Chemical dip forms a protective molecular layer Extends shine between cleanings

3.3 Testing Tarnish Resistance

  • 塩スプレーテスト (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

  • デイリーウェア: Showers, swimming, and handwashing can damage jewelry.

  • 長寿: Prevents corrosion and loosening of gemstone settings.

4.2 JINGYING’s Waterproofing Techniques

✔ レーザー溶接 – 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. 品質管理 & 認証

5.1 JingyingのQCプロセス

  1. Material Inspection – XRF testing for metal purity.

  2. Surface Check – Microscope inspection for polishing defects.

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

  4. シミュレーションを着用します – Taber abrasion test for scratch resistance.

5.2 認定

  • ISO 9001 – Quality management compliance.

  • SGS/RoHS Reports – Nickel-free verification.

6. Why Choose JINGYING OEM Jewelry?

✅ 100% Nickel-Free Guarantee - 敏感肌に安全です.
✅ Premium Polish & 仕上げ – Mirror, サテン, マット, or textured.
✅ Long-Lasting Protection – Advanced tarnish & water resistance.
✅ Custom OEM Services – From CAD design to mass production.

結論

JINGYING combines 高度な冶金学, precision polishing, そして protective coatings to deliver 高品質, nickel-free silver jewelry that resists tarnishing and water damage. ファッションブランド用かどうか, 小売業者, or private labels, our OEM services ensure durable, 低刺激性, and stunning jewelry that meets global standards.

Interested in a quote or samples? 今日ジンジーに連絡してください!