Large-volume pouches bulge out due to internal water pressure and lose their stability. However, this pouch suppresses swelling and maintains its shape by employing a film placed at the center inside the pouch, which absorbs the water pressure. This unique design ensures excellent self-standing performance.
Unlike conventional stand-up pouches that create dead space on top during transport, thanks to utilizing a box-shaped design, this product minimizes such wasted space and improves transport efficiency. Empty pouches can be folded prior to filling and folded again after disposal for compact handling.
Hiroki Tanaka (left)
Group Leader, Technical Center, Equipment Technology Department
Shotaro Katsuta (right)
Technical Center, Plastic Technology Development Department
Toyo Seikan Co., Ltd.
Tanaka: There has been a growing demand for large capacity standing pouches, especially in the detergent market. Typically, with increasing pouch capacity, size also increases while storage efficiency drops. Since our existing standing pouches had mostly conventional shapes, we undertook this development to meet the growing demands for larger volumes.
Conventional stand-up pouch
Tanaka: Our internal monitor survey and proposals to customers revealed diverse needs related to pouches. Because the demands were so varied, we struggled with narrowing down the product concept and deciding which needs to address. We iteratively refined the shape from the conceptual stage through feedback, focusing on a concept that balances large volume with storage capabilities and ease of use.
In addition to its stability and reliability during distribution and use, I appreciate the pouch's large reduction in resin usage compared to conventional bottles. I expect it to expand to a wide range of applications.
Considering that global resin usage continues to threaten the environment without abating, I think it is necessary to gradually implement measures to reduce further resin usage or reconsider plastic disposal.
