The development of an empty lip gloss tube involves several steps. Here is a general overview of the process:

1. Design: The design of the empty lip gloss tube is the first step in its development. This involves deciding on the size, shape, and color of the tube, as well as the type of applicator wand or brush that will be used.

2. Materials: Once the design has been finalized, the materials for the tube are selected. Common materials include plastic or glass for the tube itself and silicone or nylon for the applicator.
   

3. Manufacturing: The tubes are manufactured using a variety of techniques, depending on the material used. Plastic tubes are typically injection molded, while glass tubes are often made using a blow-molding process.

4. Quality Control: During the manufacturing process, quality control checks are conducted to ensure that each tube meets the required specifications.

5. Assembly: Once the tubes have been manufactured, they are assembled by attaching the applicator wand or brush to the tube.

6. Packaging: The empty lip gloss tubes are then packaged and shipped to manufacturers who will fill them with their lip gloss formulations or to individuals who wish to fill them with their own lip gloss formulas.

Overall, the development of empty lip gloss tubes requires careful attention to detail and quality control to ensure that the final product meets the needs and expectations of customers.