| 摘要 |
PURPOSE:To excellently fix a fixing material such as fertilizer, paint and water to a material to be fixed such as cut flowers and concrete blocks by dipping or bringing the material to be fixed into contact with a fixing soln., discharging the air contained in the material to be fixed in a vacuum atmosphere and replacing the contained air with the soln. CONSTITUTION:Cut roses are placed in a closed vessel, a water-soluble fertilizer soln. is injected into the vessel, and the vessel is evacuated to about 650mmHg to discharge the air from the stalks of the cut roses. The vacuum is kept for about 3min, then the pressure is returned to atmospheric pressure, and the cut roses are taken out. Meanwhile, concrete block pieces are placed in the closed vessel, and an epoxy-resin paint is introduced into the vessel to dip-coat the pieces. In this case, the vessel is evacuated to about 700mmHg, the vacuum is maintained for about 10min to sufficiently discharge the air contained in the pieces, the pressure is then returned to atmospheric pressure, and the pieces are taken out and dried. |
