Import 50m Expanding Floss 400d — Buy in wholesale FOB from Supplier in China

The 50m Expanding Floss 400d from Hebei Fenghe Biotechnology Co., Ltd. is a 50-metre dental or craft floss spool manufactured from 400 denier polyester fibre. The expanding construction means the yarn swells when it contacts moisture, increasing its surface area for more effective debris removal in dental applications or improved grip in craft and industrial uses. The supplier packages the product at 12 pieces per inner case and 288 pieces per outer carton, with a gross carton weight of 8.4 kilogrammes and carton dimensions of 51 by 31 by 27 centimetres.

The 400d (400 denier) specification indicates a medium-fine linear density, with typical filament count for this denier being 48-96 filaments depending on whether flat or textured yarn is used. Expanding floss is produced by combining standard polyester with a hydrophilic component (often rayon or modified polyester) that fibres out when wet. The tensile strength of 400d polyester is typically 2.5-4.0 grams per denier, giving a breaking strength of approximately 1,000-1,600 grams for the full yarn. The supplier does not state whether this is waxed, unwaxed, or flavoured, nor the specific expanding mechanism or fibre blend ratio.

Buyers for this product include dental floss private-label brands, craft supply distributors, outdoor gear manufacturers (for sewing applications), and industrial textile traders. The supplier mentions FOB and CIF shipping terms, along with customisable packaging, though no MOQ, unit price, or lead time is disclosed. The expanding characteristic is particularly valued in dental applications where the floss must pass between tight contacts then expand to clean proximal surfaces. Industrial buyers should confirm whether the product meets medical-grade or food-contact standards if intended for oral use.

Hebei Fenghe Biotechnology Co., Ltd. is located in Handan, Hebei Province, China, with postal code 056107. The company's name suggests involvement in biotechnology, though this particular listing covers expanding floss, a textile product. This indicates either horizontal product diversification or that the firm operates as a manufacturer-exporter with multiple production lines. The trust tier is classified as harbor, and the response rate shows as 0.00 with zero average response hours, signalling limited verified communication activity on the platform.

No production capacity figures, factory size, year of establishment, employee count, or client references appear in the source data. The supplier does not list certifications such as ISO 13485 (medical devices), GMP, or textile-specific OEKO-TEX. Buyers should conduct independent verification of the company's manufacturing credentials, particularly if the floss is intended for dental or medical applications where biocompatibility and sterilisation validation may be required. The Hebei location is consistent with China's textile manufacturing belt, though this geographic association alone does not confirm production capability.