The quality of large-volume backpacks should be inspected from five aspects:
1. Materials: Oxford cloth of 300D to 600D is generally used, but the texture, wear resistance, color and coating will be different. The difference is that European and American products are generally better than Japan, Japanese products are better than South Korea, and South Korea is better than domestic products (not underestimating oneself, but actually the industry situation, especially functional fabrics). The best is DuPont CORDURA, which is strong, durable, and outperforms other fibers.
2. Design: bag shape, carrying system, space allocation, small bag configuration, plug-in design, back heat dissipation, rain cover, etc. Good backpacks have outstanding advantages in design, check www.gregorypacks.com & www.vaude.de for a lot of design information.
3. Accessories: zippers, fasteners, closing ropes and nylon straps are very particular. The most popular good zipper is the Japanese YKK zipper, which is divided into origin and domestic production. The best zipper is produced in Northern Europe. There are many quality grades of fasteners, DURAFLEX is the best, and UTX-DURAFLEX is produced in Shenzhen.
4. Process: The level of processing technology is determined by workers’ skills and machinery and equipment, such as multi-function double-needle machine, knotting machine, one-time molding compression molding machine, glue pressing machine, etc. Program design and quality monitoring also play an important role. Visit some backpack factories and get a sense of the whole process.
5. The final inspection is the brand: the brand not only means higher price, but also means quality assurance and after-sales commitment.