Small cosmetic bottles typically range from 5–30ml in capacity and come in various shapes—cylindrical (e.g., ampoules), flat-round (e.g., essential oil bottles), and square (e.g., sample bottles). Labeling areas are often narrow and irregular, with some bottles having circumferences of only 10–15 cm, and may include curved surfaces or protruding necks.Therefore, the primary feature of small-bottle

When selecting materials, flexibility and thinness should be prioritized to ensure the sticker adheres seamlessly to the curved surface without adding extra weight. Ultra-thin PET film (50–80μm) or soft PVC materials work well, as they can bend naturally with the curve, avoiding bubbles and wrinkles. A matte or semi-gloss coating can enhance tactile quality while

(1) Functional requirements: Ensuring basic performanceFunctionality is the “bottom-line” requirement for seal stickers. It should be determined according to product transport, storage, and usage conditions. For e-commerce packages shipped by courier, friction resistance and adhesive strength are critical to avoid tearing or detachment during sorting and handling. For refrigerated food (e.g., fresh produce, dairy), stickers

The consistency of raw materials is the fundamental prerequisite for achieving uniform color blending, requiring strict control from both ink and substrate perspectives. As the core carrier of color presentation, ink batch stability directly impacts blending results. It is essential to purchase inks from the same brand and model to avoid discrepancies caused by pigment