Wholesale Customized Glass Essential Oil Dropper Bottle with 5ml-200ml Size Range and Glass & Plastic Material

The Manufacturing Process

1. Raw Material Melting: Sand, soda ash, and limestone are melted in a furnace at ~1700°C.

2. Forming: The molten glass is shaped using one of two primary methods:

   • Blow-and-Blow: Used for narrow-neck bottles (e.g., beer, soda). The glass is blown into a mold to create the parison (a preliminary shape), then transferred to a second mold for the final blow.

   • Press-and-Blow: Used for wide-mouth jars. The glass is pressed into the mold to form the parison, then blown into the final shape. This allows for more precise control over the glass distribution.

3. Annealing: The newly formed bottles are slowly cooled in a lehr (a temperature-controlled oven) to relieve internal stresses and strengthen the glass.

4. Inspection & Coating: Bottles are inspected for defects. They often receive a surface coating (a "hot-end" and "cold-end" coat) to increase lubricity and prevent scratches.

Yuyao BILL Sprayer Co.,Ltd is a professional manufacturer specialized in the production of various kinds of mini trigger sprayer, prefume sprayer, pet bottles and any other comestic packaging products. Now we have a complete set of technology and equipment, including full automatic injection machines and full automatic assembling equipment line, to ensure the production to reach 4000000 ,even more each month. Then the professional spectors to check each process during the whole production to ensure the quality of every product have no any problem, some process with professional testing machines.

To seek survival by quality and to develop by service, we always keep moving and strived to be advanced .Warmly welcome to visit us. Hope we have a chance to cooperate with each other. We will do our best to provide our excellent service and excellent products.