In the field of hot melt adhesive (pressure-sensitive adhesive) products for shoe material lamination, the lamination and bonding of sponge materials have always been a recognized technical challenge in the industry. With more than a decade of rich experience in the field of shoe material bonding, I have deeply realized that the loose and porous surface structure and high elasticity of sponge materials pose many challenges during the combination process with hot melt adhesives. On the one hand, it is difficult to achieve uniform coating on the loose surface, and bonding blind spots are likely to occur. On the other hand, the elastic deformation of the sponge will lead to uneven stress after the hot melt adhesive is cured, causing problems such as delamination and debonding. All these put forward strict requirements for the comprehensive performance of the hot melt adhesive.
In order to overcome this technical bottleneck, the Banglin team spent 8 years and invested a large amount of R&D resources. After countless formula optimizations and process tests, they finally successfully developed the special hot melt adhesive product BL-7021 for sponge lamination. This product redefines the standard for sponge lamination and bonding with its breakthrough technical advantages: Its low-temperature construction characteristics break through the limitations of traditional hot melt adhesives that require high-temperature operations. It can achieve efficient coating in the relatively low temperature range of 135-150°C, not only greatly reducing energy consumption but also effectively preventing damage to the sponge material caused by high temperatures. The unique low-odor formula and excellent fluidity ensure a green and environmentally friendly construction process and smooth operation. More importantly, after curing, BL-7021 can form a stable cross-linked structure with the sponge. The finished product will neither experience delamination nor adhesive layer transfer, perfectly solving the pain points of the industry. Whether it is maintaining strong initial adhesion in the cold winter or sustaining long-lasting bonding performance in the hot summer, this product performs excellently, providing all-weather reliable guarantee for shoe material production.
With the trend of intelligent upgrading in the industry, the production process is also constantly innovating. In the past, the manual lamination method relying on small spray glue machines was not only inefficient but also resulted in uneven bonding quality. Nowadays, relying on the good process adaptability of BL-7021, the industry is gradually shifting to the automated coating and lamination process. Through the integrated production line of "coating-lamination-slitting-lamination", the production efficiency has increased by more than 3 times, and the labor cost has been reduced by more than 40%.
Coinciding with the country's strong advocacy for the development of new quality productive forces, Banglin Hot Melt Adhesive Manufacturer will continue to be driven by scientific and technological innovation, deeply engage in the R&D of hot melt adhesive technology, inject more impetus into the high-quality development of the shoe material industry, and continuously lead the technological changes in the industry.