| 摘要 |
A plant pot suitable for use when germinating seedings, cuttings or the like and which will disintegrate on planting out, is made from a root penetrable heat bonded paper web derived from a blend of fibres of vegetable origin and up to 50% synthetic thermoplastic fibres. The fibres of vegetable origin may for example be unbleached and/or bleached kraft fibres optionally mixed with bark or peat fibres and the synthetic thermoplastic fibres are preferably polyolefin fibres. The total grammage of the paper web forming the plant pot is preferably 60 - 120 gm<-><2> and the web preferably has a burst strength of 40 to 200 kPa and an air resistance of 6 to 30 mm W.G. (at a face velocity of 20m min.<-><1>). The plant pot paper may be perforated by spark or mechanical perforation to enhance root penetrability. Conventional paper cup or bag making machinery may be used for forming the pots from the paper web. |
