Metal materials inherently convey a sense of cool sophistication and are the classic choice for luxury labels, particularly for products that emphasize longevity or refined industrial aesthetics. Stainless Steel (304 / 316L):Known for its corrosion resistance and high hardness, stainless steel can be processed through brushing, mirror polishing, or sandblasting to achieve different finishes. Brushed

I. Core Material Categories and Characteristics The material of a small sticker consists of two main parts: the base material and the adhesive layer.The base determines the sticker’s appearance and durability, while the adhesive affects its bonding strength and application scenario.Common sticker materials fall into three categories — paper-based, plastic-based, and functional specialty materials —

I. Core Standards for Selecting Eco-Friendly Materials The environmental friendliness of hair bundle labels should meet the principle of “life-cycle sustainability”—minimizing environmental impact across every stage from production and use to disposal. The key criteria include three aspects: Biodegradability:After disposal, the material should decompose naturally (in soil or seawater) into harmless substances such as CO₂,