To provide a spraying light-shielding agent comprising plastic emulsion from which light-shielding effect is easily obtained as light-shielding coating applied to agricultural film for suppressing temperature rise in an agricultural film house when cultivating crops in the house in summer, and having no influence on the environment.
The spraying light-shielding agent comprising biodegradable resin is made so as to be applied to agricultural film, and contain biodegradable resin, an inorganic substance and water. In the agent, the biodegradable resin comprises an alphatic polyester and its derivative, and 10-1,000 pts. wt. of the inorganic substance having a particle diameter of ≤10 μm, preferably ≤5 μm is added to 100 pts. wt. of a resin solid.
COPYRIGHT: (C)2004,JPO
Shuhei Fukuda
Minoru Murata
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