Nature silk factory

Quality is primarily determined by the Momme (mm) weight and the silk grade. For bedding and garments, look for a Momme weight between 19mm and 25mm. Ensure the factory provides Grade 6A long-fiber mulberry silk, which is the highest international standard for purity, strength, and luster. You should also request a burn test report or sample to verify it is 100% protein-based fiber rather than synthetic polyester.

To ensure market access and consumer safety, verify that the factory holds the OEKO-TEX® Standard 100 certification, which guarantees the silk is free from harmful chemicals. For organic claims, the GOTS (Global Organic Textile Standard) is mandatory. If you are exporting to the US, ensure compliance with FTC labeling requirements (100% Silk) and CPSC flammability standards for apparel.

Buyers must specify the weaving technique (e.g., Charmeuse, Satin, or Habotai) as this affects the hand-feel and application. Confirm the colorfastness grade (should be Grade 4 or higher) to prevent bleeding during washing. Additionally, inquire about anti-pilling treatments and whether the silk is pre-shrunk to maintain dimensional stability after the end-user washes the product.

Assess the factory's monthly output capacity and the number of shuttleless looms they operate. A professional factory should offer OEM/ODM services with the ability to handle custom dyeing (Pantone matching) and digital printing. Ask for their lead time for peak seasons, typically ranging from 25 to 45 days, to ensure they can scale with your business growth.

The most significant risk is material substitution, where factories blend silk with rayon or polyester to lower costs. To mitigate this, use third-party inspection services (like SGS or Intertek) to perform random fabric composition tests before final payment. Another risk is moisture damage during transit; ensure the supplier uses vacuum packaging or moisture-proof PE bags with desiccant silica gel.

Silk is a commodity influenced by raw silk market price fluctuations. Negotiate a price validity period (e.g., 30 days) to protect against sudden spikes. For bulk orders, aim for a tiered pricing structure where costs drop by 5-10% at higher volume breaks. Request FOB (Free On Board) terms to maintain better control over your shipping costs and insurance.

Silk is a high-value, low-weight product, making Air Freight or Express (DHL/FedEx) the most viable options for small to medium batches to reduce lead time and inventory costs. For large volumes, Sea Freight is economical, but you must ensure the containers are stowed away from heat sources and that the supplier provides a Certificate of Origin to help you benefit from preferential tariffs under trade agreements.

Always conduct due diligence by checking the supplier's Business License and Export Qualification on professional platforms like Made-in-China.com. Utilize Secured Trading Services offered by the platform to ensure your payment is only released to the supplier after you confirm receipt and quality. Avoid direct wire transfers to private bank accounts.