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1. WO1994006274 - POTS POUR PLANTES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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CLAIMS
1. A moulded plant pot comprising a hardened matrix of fibres compatible with plant growth forming the wall and exterior surface of the pot and a low density matrix of similar fibres within the pot.
2. A moulded plant pot as claimed in claim 1, wherein the fibres are fibres of newsprint derived from a slurry to which a chlorine scavenger has been added.
3. A moulded plant pot as claimed in claims 1 or 2, wherein molasses or other sugary compound has been added to a slurry from which the fibres are derived.
4. A moulded plant pot as claimed in any one of the preceding claims wherein there is below the low density matrix of fibres towards the bottom of the pot a fertiliser capsule covered by a densely formed mesh of fibres .
5. A process of moulding a plant pot comprising the steps of:- (a) preparing a slurry of fibres of a fibrous material compatible with plant growth;
(b) introducing a first portion of the slurry into a perforated mould while the mould is subject to a vacuum externally on all sides but not the top or bottom;
(c) allowing a film to form on the inside of all sides of the mould, the film constituting the external shell of the plant pot;
(d) introducing a further portion of the slurry then additionally applying a vacuum from top and bottom of the mould so as to form a low density matrix within the plant pot; and
(e) removing the plant pot from the perforated mould.
6. A process of moulding a plant pot as claimed in claim wherein an additional step is included between steps (c) an (d) which comprises the introduction of a fertiliser capsul into the pot and thereafter adding a portion of a slurry an applying vacuum only at the bottom of the mould to produce densely formed mesh of fibres above the capsule.
7. A process of moulding a plant pot as claimed in any on of the preceding claims wherein the slurry of fibres is introduced into the mould at a temperature of the order of 90 C and maintained at about this temperature.