HEAT-RETAINING, LIGHTWEIGHT NONWOVEN FABRICS FOR USE IN TUNNEL CULTURE

摘要

Kuraraykuraflex Co., Ltd. has developed a nonwoven fabric for use as a heat-retaining material for tunnel culture type commercial farming. Extreme drops in temperature at night during the cold season can slow crop growth or even result in frost damage. To counter these problems, the company has developed a sheet-type heat-retaining material made of highly bulky fibers, drawing on it's long-nurtured nonwoven fabric manufacturing technology. Although the new nonwoven fabric product is thin and light, it boasts high heat-retaining properties. In particular, when the new product is used in tunnel culturing employing the new "external heat-retention" installation method, which aims to prevent slowdowns in crop growth, heat-retention is improved as the material effectively blocks heat loss from the tunnel interior. This heat retentiveness dramatically improves productivity, with significant results having been attained, especially in lettuce farming.