DOUBLE VINYL SHEET FOR VINYL HOUSE

摘要

The present invention relates to a double plastic sheet for plastic greenhouse which is easy to produce, and has thermal insulation and heat keeping effects throughout the double plastic sheet. The double plastic sheet comprises the following: a sheet member with an upper plastic sheet and a lower plastic sheet in which the edges of the sheets are combined to each other for forming an air layer by receiving air from the outside; and an interval maintaining member formed into a thin thread or band form and a zigzag shape, and extended to the longitudinal direction of the sheet member. Ridges of the interval maintaining member are combined to the lower surface of the upper plastic sheet, and furrows of the interval maintaining member are combined to the upper surface of the lower plastic sheet to uniformly maintain the height of the air layer.