To make clean, healthy, and highly safe life and sanitary environments for the human body by only placing a sheet main body at a desired position.

A sheet main body 6 is composed by applying a functional layer 2 on an upper surface of a sheet body 1 of paper or the like provided with flexibility. The functional layer 2 is composed by painting composition formed by kneading and conditioning porous micro-capsules 3 containing natural extract (natural agent) of animals and plants and resin coating agnet 4 on a surface of the sheet body 1. By the function of natural extract injected in the porous micro-capsules 3 as core substance to be gradually discharged and diffused outside the micro-capsules 3 for a long time, functions of harmful insect avoiding effect to cockroaches and ticks, sterilizing effect to colon bacilli, salmonellae, yellow staphylococci, Psedomonas aeruginosa, etc., disinfection effect, antibacterial effect, deodorozing effect, aromatic effect, etc., can be achieved.