Liquid Silicone Menstrual Disc Injection Factory

The liquid silicone menstrual disc is an innovative feminine hygiene product designed for comfort, convenience, and sustainability. It is manufactured using a specialized liquid silicone rubber (LSR) injection molding process, which ensures high precision, durability, and biocompatibility. This process involves using high-purity medical-grade liquid silicone rubber, which is FDA-approved and free from harmful chemicals like BPA, latex, and phthalates.

Manufacturing Process

1. Material Selection and Preparation
   The process begins with selecting high-quality biocompatible liquid silicone rubber (LSR). This material is widely used in medical applications due to its hypoallergenic properties, flexibility, and resistance to bacteria and odors. The LSR is typically supplied in two separate components (Part A and Part B), which must be mixed in precise proportions before molding.
2. Injection Molding Machine Setup
   The LSR injection molding machine has a mixing unit, an injection unit, and a mold cavity. The machine is set to precise temperature and pressure settings, ensuring consistent product quality.
3. Mixing and Metering
   The two-component LSR system is pumped into a static mixer, where they are thoroughly blended. This step ensures uniform curing and optimal physical properties. Additional components, such as color pigments or antimicrobial additives, can be added at this stage.
4. Molding Process
   • The liquid silicone mixture is injected into a pre-heated steel mold at a controlled temperature (typically around 150-200°C).
   • The mold cavity is designed to match the exact shape and size of the menstrual disc, ensuring precision and consistency in production.
   • The silicone cures inside the mold within 30-90 seconds, depending on the material composition and mold design.
5. Demolding and Post-Processing
   Once the curing process is complete, the menstrual disc is removed from the mold. Since liquid silicone is naturally non-stick, the product can be easily demolded without additional release agents. Any excess material or flash is trimmed off.
6. Quality Control and Sterilization
   Every menstrual disc undergoes strict quality control to check for:
   • Dimensional accuracy
   • Surface smoothness
   • Structural integrity
   • Biocompatibility tests

   The final products are sterilized using methods like gamma radiation, autoclaving, or ethylene oxide gas to ensure they are safe for menstrual use.

7. Packaging and Distribution
   The sterilized menstrual discs are packed in hygienic, eco-friendly packaging and distributed to retailers or directly to consumers.

Advantages of Liquid Silicone Injection Molding for Menstrual Discs

• Biocompatibility & Safety – Medical-grade silicone is non-toxic, hypoallergenic, and safe for long-term internal use.
• High Precision & Consistency – Injection molding ensures uniform thickness, smooth edges, and a leak-proof design.
• Flexibility & Comfort – The soft, flexible nature of silicone ensures a comfortable fit and easy insertion/removal.
• Durability & Reusability – Unlike traditional tampons or pads, silicone menstrual discs are reusable for several years, reducing waste.