Use of agricultural film structure

摘要

An agricultural film structure composed of a mixture of a thermoplastic resin and an infrared radiation-absorbing powdery inorganic compound, said mixture comprising(a) 100 parts by weight of a thermoplastic resin and(b) about 1 to about 20 parts by weight of a hydrotalcite powder, as the infrared radiation absorbing powdery inorganic compound, having an average secondary particle diameter of not more than about 5 microns and a BET specific surface area of not more than about 30 m²/g and being represented by the following formula (1)$\mathop{\mathrm{image}}$wherein Misrepresents a divalent metal ion selected from the group consisting of Mg, Ca and Zn ions, A^n- represents an anion having a valence of n, and x and m satisfy the following conditions$\mathop{\mathrm{image}}$$\mathop{\mathrm{image}}$