In Vietnam’s rapidly growing papermaking industry, packaging paper production, particularly corrugated and kraft paper, faces significant challenges related to insufficient dry paper strength. Dry strength directly impacts the compression resistance, bursting strength, and interlayer adhesion of paper—critical factors for ensuring safe transport and storage. Rising costs of virgin fibers and increasing use of recycled fibers make it difficult for Vietnamese papermakers to balance cost efficiency with paper performance.

To address this challenge, T302 dry-strength agent, a reticular-structured amphoteric polyacrylamide, has seen increasing adoption in the Vietnamese market. Its macromolecular chains contain both anionic and cationic functional groups, predominantly cationic, providing excellent anti-foreign ion interference capability in complex pulp systems and enhancing overall paper stability. Compared with conventional linear polyacrylamide dry-strength agents, T302’s networked molecular structure more effectively improves ring crush, tensile, bursting strength, and interlayer adhesion, while maintaining excellent retention and drainage performance.

In practical applications, T302 is widely used in the production of corrugated paper, kraft paper, bobbin paper, cultural paper, and specialty paper. Adding the diluted solution at the mixing or pulping stage, optionally combined with cationic resins in a dual-agent system, significantly improves dry strength while allowing the use of higher ratios of recycled fibers or low-cost raw materials, balancing economic and performance requirements. This stability and compatibility make T302 a preferred solution for addressing insufficient dry strength in Vietnam’s packaging paper production.

Moreover, as demand for high-quality packaging materials and export-grade paper grows in Vietnam, the trend in dry-strength agent applications is toward high-performance, stable, and compatible products. Papermakers increasingly value agents that demonstrate consistent performance under high-speed papermaking conditions and adaptability to various paper grades and pulp compositions. This not only optimizes paper machine efficiency but also improves recycled fiber utilization, contributing to cost reduction and sustainable production.

Overall, Vietnam’s dry-strength challenges in corrugated and kraft paper production are being effectively addressed through scientific selection of dry-strength agents. T302 dry-strength agent, with its technologically mature, high-stability, and versatile performance, provides a reliable high-performance dry-strength solution, enhancing paper quality toward international standards while maintaining cost-effectiveness and sustainability.