Bag Embroidery: Aesthetics and Craftsmanship on Needles
2025-11-22
The heat transfer printing process is based on the phenomenon of thermal sublimation. Under high temperature and pressure conditions, the ink on the transfer film changes from a solid state to a gaseous state, quickly penetrating into the fibers or coatings of the bag material. After cooling, it solidifies again, allowing the pattern to firmly "grow" on the surface of the bag. This process not only ensures the clarity and vividness of the pattern, but also seamlessly integrates it with the bag, creating a realistic visual effect.
There are two main types of heat transfer printing processes:
- Adhesive film transfer printing: commonly used for bags made of natural fiber materials such as cotton. The special adhesive on the transfer film is printed on the surface of the bag under high temperature and high pressure. Its pattern is breathable and washable, but the feel is slightly heavy. Dark colored bags require special transfer paper for dark colors to ensure clear patterns and color reproduction.
- Sublimation transfer printing: more suitable for bags made of synthetic fiber materials such as polyester fibers. Ink sublimates into the fibers at high temperatures, forming a firm pattern. This process has sharp colors, rich layers, and no glue layer. It feels light, thin, and breathable, and can perfectly present complex designs.
Advantage：
- Strong color expression: Using high-resolution dot printing technology, the pattern colors are bright and layered, and gradients and small details can be accurately presented, meeting consumers' pursuit of personalization.
- Good durability: The ink penetrates deep into the material, and the pattern is durable. Even after multiple washes or long-term use, it remains bright and not easily faded or peeled off.
- Wide applicability: Whether it is nylon, polyester fiber, leather and other bag materials, the heat transfer printing process can easily handle them, and the application prospects are broad.
- Efficient and convenient operation: It consists of two parts: transfer film printing and transfer processing. By using a heat transfer machine to heat and press once, the pattern can be quickly transferred to the bag, suitable for mass production.
The heat transfer printing process has brought revolutionary changes to the field of bags. It relies on the principle of thermal sublimation to derive two types of adhesive film transfer printing and sublimation transfer printing that are suitable for different materials, each with its own characteristics and outstanding advantages. Vibrant colors, durable patterns, suitable for multiple materials, and capable of efficient mass production.
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