Application scenarios for integrated hot and cold bonding machines

What is the structure and working principle of an integrated hot and cold bonding machine?

  The integrated hot-and-cold bonding machine (direct cooling) is specifically designed for hot-melt adhesive, PUR dot dispensing, and glue-based bonding & pressing processes. It combines both hot-melt and cold-press technologies into a seamless, directly cooled, fixed-position laminating machine with integrated in-line conveying. The machine is divided into two zones—cold and hot—separated by an insulation layer and equipped with a heat recovery and regeneration system. This setup effectively isolates the cold and hot zones, preventing heat from the hot area from infiltrating the cooler zone, thereby reducing thermal energy loss while promoting energy efficiency and environmental sustainability.

The hot-melt zone is equipped with multiple sets of specialized heating plates—both upper and lower—as well as infrared radiation-based temperature-reinforcement devices, enabling faster and more precise heating. The internal temperature is pre-set and controlled precisely. 30 ~ 200 °C adjustable, with pneumatic roller pressing applied at the end of the hot-melt zone. This process ensures thorough fusion of the adhesive and fabric during heating and conveyance, while simultaneously applying pressure to achieve exceptionally strong bonding of the components.

The cold-setting area is equipped with a built-in chiller and cold-setting molds, maintaining a cooling temperature. 10 ~ 35 Temperature is adjustable in ℃; an aerodynamic rolling process is applied at the tail section of the cold zone, followed by a second pressurization step to set the shape after cold foiling. This ensures the adhesive remains smooth, wrinkle-free, and maintains its original dimensions, while delivering a soft, delicate hand feel. The process offers remarkable results, operates quickly, achieves high productivity, prevents the belt from sticking to the adhesive, and also allows for direct application of adhesive film for seamless bonding.

Particularly well-suited for hot-melt bonding and cold-press shaping in seamless lingerie production, this machine far surpasses the efficiency and quality of traditional top-and-bottom heat press machines. Today, leading domestic lingerie brands are already adopting this integrated hot-and-cold bonding machine.