July 16, 2026 – Two key invention patents jointly filed by Longlide Packaging and Fengqifeng Printing were officially authorized by the National Intellectual Property Administration this week, marking major breakthroughs in automated corrugated processing and premium rigid box structural design for China’s packaging printing sector.
The first patent covers a continuous automatic packaging device for corrugated cartons. Its synchronized flap bending mechanism eliminates repeated manual folding, enabling uninterrupted mass production of e-commerce shipping boxes. The integrated folding and sealing unit cuts labor costs significantly and raises assembly consistency for high-volume online retail orders.
The second innovation is a magnet-locked rigid color box for cosmetics and gift packaging. Built-in magnetic inserts lift compression resistance by 30% while retaining easy, repeatable opening without extra fasteners. The optimized structure satisfies luxury brand demands for both durability and premium tactile experience.
Industry analysts note proprietary mechanical and structural patents have become core competitive edges for domestic packaging printers. Meanwhile, digital flexible printing firms are stepping up R&D to secure more intellectual property for variable-data short-run packaging, amid surging customized marketing packaging orders from global consumer brands. As downstream brands prioritize automation and differentiated packaging, enterprises will ramp up patent filings to lower production waste and capture high-margin export orders.
