Plastic sunglasses manufacturing process
1. 2D and 3D drawing: Creating a blueprint for the design
Once we had a design idea for a sunglass, we needed to convert the idea into 2D and 3D drawings so that the construction and functionality of the glasses could be more visually displayed. This allows us to easily manufacture the eyewear and make the necessary improvements in the eyewear manufacturing process.
2. Making the mould: Creating a template for the sunglasses
After the design phase is completed, the 3D model needs to be transformed into a solid model of the glasses by cutting the steel into a predetermined size and shape with the assistance of a model maker using high precision CNC tools.
3. Injection: Injecting molten plastic into the mould
The plastic particles that pass the inspection are injected into the spectacle frame mold by pressure, and the desired spectacle frame shape is obtained after cooling and molding.
4. Polishing and tumbling: Smoothing out any rough edges
The injection molded spectacle frames are rough, with burrs on the edges, not smooth enough. Larger burrs need to be treated in a targeted manner, manually polished to smoother, and then put into the vibration machine for overall grinding.
5. Cleaning and drying: Ensuring the sunglasses are free of any debris
The surface of the spectacle frame that has been polished and trumbled will have dust and other impurities adsorbed on it. It needs to be thoroughly cleaned to ensure that there are no sundries on the surface of the spectacle frame. After cleaning, it is also necessary to dry the glasses frame.
6. Color painting: Adding color to the sunglasses
Congratulations, at this point, you can finally make your glasses frame the color you want. The easiest way to color is to spray. Complicated colors require special techniques to complete, The common ones are water Transfer printing, heat transfer printing, these processes can make the color of the glasses more colorful and present the effect you want.
7. Logo printing: Adding a logo to the sunglasses
Every entrepreneur with a dream will give his sunglasses a meaningful name. As a professional sunglasses customization factory, we can print your exclusive brand name on the position you want, which can be on the lens. Or anywhere on the glasses frame.
8. Assembling: Putting all the parts together
Yes, that's what you think, this step is to assemble the glasses frame and temples together.
9. Lens cutting: Cutting the lenses to fit the frame
The process of lens cutting involves cutting the lenses to fit the frame. It is a necessary step in creating eyeglasses. The lenses must be cut precisely to ensure they fit properly.
10. Testing lens: To ensure that the lenses meet the relevant quality standards
common tests for sun lenses include：
1) Transmittance
2) Prism degree
3) UV400
4) Polarization efficiency and angle
5) Drop ball test
11. Assembling lens: Placing the lenses into the frame
12. Frame adjusting: Adjusting the frame to fit the wearer's face
This is important to ensure comfort and proper function. By making the necessary adjustments, the frame will sit securely on the face and provide clear vision without slipping or causing discomfort.
13. Packing: Put the inspected sunglasses into the package
Usually we design high-end packaging for sunglasses to increase the value of the product. The most used are paper boxes, EVA zipper boxes, glasses bags, and cleaning cloths.
