Injection molded eyewear frames are made using a process where thermoplastic materials are melted and injected into a metal mold. After cooling, the material hardens into the desired shape. This method ensures consistency in the frame’s size, strength, and appearance, thanks to precise mold design and a controlled production process.
Introduction
Injection molded eyewear has become a popular and efficient solution in the eyewear manufacturing industry due to its ability to produce lightweight, durable, and cost-effective frames.
This article covers the key aspects of injection molded eyewear, including the materials, production process, and benefits. Whether you’re a designer, manufacturer, or just curious, this article provides helpful insights into how injection molded frames are made.
What is Injection Molded Eyewear?
Injection molded eyewear frames are made using a process where thermoplastic materials are melted and injected into a metal mold. After cooling, the material hardens into the desired shape. This method ensures consistency in the frame’s size, strength, and appearance, thanks to precise mold design and a controlled production process.
Common Materials Used in Injection Molded Eyewear
Injection molded eyewear frames are made from thermoplastic materials that are heated, melted, and injected into molds. These materials must be lightweight, durable, impact-resistant, and comfortable. Common materials used include:
Cellulose Nitrate (CN)
Cellulose Propionate (CP)
Epoxy Resin (EP)
Nylon (PA)
Carbon Fiber (CF)
Grilamid TR90 (TR90)
Polycarbonate (PC)
Based on extensive production data and experience, the most commonly used materials in our factory are CP, PC, TR-90, and CF. Carbon fiber (CF) is less effective for frame designs but is mainly used for the temples (arms) of eyewear.
