| 摘要 |
<p>A curtain for use as a thermal insulation, particularly for a greenhouse. The curtain is made of tubular foil sections connected to each other along their diametrically opposite surfaces, to produce a continuous, double wall curtain which may be provided with suitable coatings to render the curtain impermeable, ray reflecting, or the like. In certain embodiments the coating is only applied to the portions of the tubular sections common to two adjacent sections. Further embodiments are also disclosed. The curtain presents an extremely simple structure inexpensive to produce and compact to store or fold, while maintaining the heat insulating properties of prior art.</p> |
