The foundation of printed glass bottles is the glass itself. We should first focus on the thickness and uniformity of the glass.
High-quality glass bottles have a consistent wall thickness, good light transmission, and are free of bubbles or impurities. Common soda-lime glass is moderately priced and durable, while borosilicate glass is more resistant to high temperatures and thermal shock, making it suitable for applications requiring heating or refrigeration. As for printing techniques, the main methods currently available include screen printing, heat transfer printing, laser engraving, and spraying.
Screen printing offers rich colors and good wear resistance, making it suitable for large-scale customization; laser engraving offers high permanence but can only produce monochrome effects; heat transfer printing provides finer patterns but is slightly less scratch-resistant. When choosing a bottle, you can gently scratch the printed area to test its adhesion or inquire with the seller about the specific printing process.