As a crucial carrier of product image and information, the molding process of hang tags directly determines the stability, visual effect, and lifespan of the finished product.Different materials require different processing routes, and the industry has developed a complete process system covering die-cutting, printing, surface treatment, and post-processing to meet the quality requirements of diverse application scenarios.
Die-cutting is the fundamental process in hang tag molding, its function being to precisely separate the printed flat roll or single sheet according to the designed outline. Traditional flatbed die-cutting relies on the cooperation of the cutting tool and the base plate, suitable for mass standardized production, with high efficiency and controllable costs; rotary die-cutting achieves continuous operation in high-speed rotation, more suitable for long-term and large-volume orders, reducing tool change time and ensuring consistent cuts. Irregularly shaped hang tags require customized special dies, and CNC bending technology is used to control the curvature and angle to ensure smooth, burr-free edges. For multi-layer composite materials, die-cutting must take into account the differences in shrinkage rates of each layer to prevent delamination or warping.
Printing processes may occur immediately before or after die-cutting, depending on the material and production chain. Paper hang tags commonly use offset printing to achieve high-precision dot reproduction, suitable for large-volume, uniform designs; digital printing supports real-time output of variable data, meeting personalized and short-order needs. Plastic hang tags mostly use UV offset printing or screen printing, utilizing ultraviolet light to cure inks and improve adhesion and weather resistance. Textile hang tags primarily use heat transfer or digital direct-to-garment printing, creating durable patterns on the fiber surface while retaining the soft feel of the fabric.
Surface treatment is a crucial step in enhancing molding quality and added value. Lamination processes are divided into glossy and matte lamination; the former increases brightness and wear resistance, while the latter creates a delicate matte texture. Hot stamping (gold/silver) uses high temperature and pressure to transfer metallic foil to designated areas, giving the label a striking layer and anti-counterfeiting properties. Embossing and texturing create three-dimensional textures on the material surface through mechanical pressure, enhancing tactile recognition and visual appeal. For special needs, spot varnishing, reverse UV coating, or nano-coating can also be used to achieve waterproof, oil-proof, or scratch-resistant properties.
Post-processing includes slitting, punching, stringing, and quality inspection. Slitting cuts wide rolls of material into individual pieces; punching positions and diameters are determined by the hanging method; and stringing requires materials and colors that coordinate with the hangtag's style. Quality inspection focuses on dimensional accuracy, printing registration, surface defects, and hanging stability to ensure the finished product meets factory standards.
With the advancement of smart manufacturing, some processes have introduced automated detection and closed-loop correction systems, significantly improving consistency and yield. In the future, molding processes will continue to be optimized in terms of environmental friendliness, low consumption, digital control, and multi-functional integration, giving hangtags greater expressiveness and application reliability.
