In recent years, as people's requirements for outer packaging have become more and more dissatisfied with the traditional ones, special-shaped food bags have emerged as the times require, because of their unique appearance, they are extremely attractive to consumers. Food special-shaped bag is a kind of irregular-shaped food packaging, which has strong novelty. With its extraordinary appearance and strength, it has gradually become a must-have killer for flexible packaging products to improve their selling points and competitiveness, and is popular in various markets at home and abroad.

Special-shaped bags are often used as regular middle-sealed bags, three-side-sealed bags, and four-side-sealed bags, and have special soft material outer packaging. It is widely used in daily chemicals, electronics, food, toys and other major fields. And we can see various styles of three-sided bags, self-supporting, suction nozzle belts, self-supporting one-line belts and so on everywhere in our lives. The invention and production of heterosexual bags broke through the traditional production concept of square bags. Replacing straight edges with curved edges reflects a different design style, which has the advantages of simplicity, novelty, clarity, highlighting brand characteristics, and easy identification.