FR2480074A1 - POT OF THERMOPLASTIC SYNTHETIC MATERIAL, FOR PLANTS - Google Patents

Abstract

THE INVENTION RELATES TO A THIN-WALL PLANT POT, MADE OF A THERMOPLASTIC SYNTHETIC SUBSTRATE MATERIAL, WHICH HAS AN OPENING IN ITS BOTTOM FOR THE FLOW OF WATER. THE BOTTOM AND SURROUND WALL OF THIS PLANT POT 10, MADE IN ONE PIECE, IS IN A LAMINATE WHICH INCLUDES AN OPAQUE LAYER 11 AND AN EXTERIOR DECORATIVE LAYER 12. THE OPAQUE LAYER 11 IS FOR EXAMPLE COLORED IN THE MASS BY A BLACK PIGMENT AND SHE PLAYS THE ROLE OF WEIGHT LAYER FOR THE PLANT POT.

Description

The present invention relates to a plant pot (or flower pot) wall

  which is made of a pressed synthetic thermoplastic material and which is provided with

  its bottom, an opening for the flow of water.

  By the patent DE 1 729 548 it is known to practice,

  in the bottom of thermo plastic containers

  plastic in the form of cups, containers which have

  been previously manufactured with a thin wall

  stuffing, holes for the flow of water so that these containers can be used, among others,

as plant pots.

  It has, however, been found that such plant pots are practically unusable in practice because the thin wall of these plastic containers normally allows the light to pass to such a point that the root system of the plant suffers. It is furthermore desirable in the manufacture of thin-walled plastic plant pots that these pots should have a peripheral surface of decorative appearance, this surface should have a color as close as possible to that of earthen flower pots. cooked or

  plant containers of the same kind.

  It was therefore necessary to make sure - that was the technical problem that arose - that an opaque wall, that is to say not letting the light through, present,

  externally, a decorative surface.

  The solution of the present invention to this technical problem is to form the bottom and the peripheral wall of the plant pot in one piece from a laminate containing an opaque layer and

an exterior decorative layer.

  It has been found that it is particularly

  to color in the mass the essential opaque layer

  in black and make it the load-bearing layer of the wall of the pot plant. In this way it is possible to manufacture this opaque layer from a return material, for example to use for this purpose residual sheets obtained in the production of plastic articles or to use the used material, and

  to load it with the corresponding black pigments.

  This can greatly reduce the cost of the plant pot. This lowering of the cost is all the more marked as this opaque layer stained black in the mass can serve at the same time as the load-bearing layer of the plant pot. This means, on the one hand, that the thickness of this layer is sufficient to ensure the desired opacity even in the case of a medium black coloring, and, on the other hand, that the porain layer, which forms the essential of the

  wall with regard to the material, is manufactured at

  shooting the return material or the second material

quality, cheap.

  Further improvements and improvements can be achieved by forming the opaque inner layer as a load bearing layer and doubling it with a thin layer

  of decoration. It is advantageous that the decorative layer

  tion has a poor pigmentation giving the coloring

desired

  In an advantageous embodiment, the wall of the plant pot may comprise three layers: an opaque inner layer, against which an insulating layer

  colored with a pigment and, on the latter,

che, the decorative layer.

  In another embodiment, also

  tageux, it is planned to provide a wall with two or three layers of an additional inner layer, which then forms respectively a third or fourth layer,

  which is in a material favorable to the roots.

  It is particularly recommended that the wall of the plant pot is PCV (polyvinyl chloride), in

polystyrene or polypropylene.

  The following description, with regard to

  annexed drawing, will make the invention better understood

using a few examples.

  In this drawing: Figure 1 shows a side view of a plant pot according to the invention; Figure 2 shows, in section, the structure of a two-layer wall; Figure 3 shows, in section, the structure of a three-layer wall; Figure 4 shows, in section, the structure of a four-layer wall; and FIG. 5 represents, in section, the structure

  of a three-layer wall which is another mode of

  execution. FIG. 1 shows a plant pot 10 whose wall of the bottom and the periphery is in one

  piece. The bottom region has a stacking ring

  16 which serves to hold together by snapping a number of plant pots packed in one

  others. The openings 15 necessary for the flow of

  Water is provided at the bottom of the plant pot by a known melting process. So that the plant pot has

  a stable position is formed on the outer periphery

  bottom of the bottom, stabilizing feet 17.

  At its upper part, that is to say on the side of its opening, the plant pot 10 carries a flared peripheral ring 18 which forms a flange in the region of the opening and is folded outwards

practically at right angles.

  Figures 2 to 5 show modes of implementation

  the structure of the plant pot 10 in terms of

  Thermoplastic tea. FIG. 2 shows a two-layer structure of the one-piece wall forming

  the bottom and the rim. The laminate shown is

  with an opaque inner layer 11 which serves as

  Bearing time. The opacity of this layer

  dull It is due to the presence of colored pigments 19 -35 embedded in said layer. These colored pigments 19 are

  preferably black. Because the inner layer

  11 is thus colored black in the mass the harmful light for the roots can not pass. Sure

  this opaque inner layer 11 is applied, by co-

  extrusion, as an outer layer, a decorative layer 12. This decorative layer 12 is also provided with a covering pigmentation 20, which may be for example a brown terracotta color so that the plant pot 10, which is made of synthetic thermoplastic, has the external appearance of a ceramic plant pot, especially terracotta. Depending on the intended application, the pigmentation may also be of another color. FIGS. 3 and 4 show, between the opaque inner layer 11 and the outer decorative layer 12,

  an insulating colored layer 13 which is interposed in

  plement. This colored insulating layer 13 also comprises

  This pigmentation 20, which by the color it gives, is similar to the pigmentation of the decorative layer 12. This intermediate colored insulating layer 13 thus prevents the black opaque inner layer 11 from being visible through the decorative layer transparently. Figures 4 and 5 show a wall structure of the plant pot 10 in which the opaque inner layer 11

  is covered with an additional inner layer 14.

  This additional inner layer 14 is in one

  thermoplastic synthetic material which has no

  cif for the roots. The laminate represented on the

  gures 3 to 5 is also produced by coextrusion.

  The layers 11, 12, 13 and 14 of the laminate may be of the same basic material, for example PCV, polystyrene or polypropylene. It is also possible for the various layers of the laminate to be made of different thermoplastic synthetic materials: for example, the opaque inner layer 11, which also serves as a load-bearing layer, may be made of a high-elasticity polypropylene, and the outer decorative layer 12 may then be to be by

  example in a PCV having a high resistance to wear.

  The colored insulating layer 13 and the inner layer 14

  can be for example polystyrene.

  In a not shown embodiment, a layer can be applied to the decorative layer 12

  extra clear clear polystyrene type.

  This layer of transparent polystyrene, very thin, is extremely resistant to scratching and thus gives additional protection against damage that risk

  to undergo the decorative layer 12 of the plant pot 10.

Claims (10)

  1. Thin-walled plant pot made of one material   pressed thermoplastic synthetic material,   at its bottom for the flow of water, pot (10) characterized in that the wall of its bottom and its surround, formed in one piece, is a laminate which comprises an opaque layer (11). ) and a decorative layer outside (12).   2. Plant pot according to claim 1,   characterized in that the opaque layer (11) is colored in the mass essentially black and constitutes the layer   carrying the wall of the plant pot.   Plant pot according to one of the claims   1 and 2, characterized in that the laminate comprises two layers.   4. Plant pot according to claim 3,   characterized in that the opaque inner layer (11) is   a bearing layer and is covered with a decorative layer thin tive (12).   5. Plant pot according to claim 4, characterized   characterized in that the decorative layer (12) is provided with a   covering pigmentation giving the desired color.   Plant pot according to one of the claims   1 and 2, characterized in that it has a three-layer structure in which the opaque inner layer (11) is lined with an insulating layer (13) colored by pigmentation   on which the decorative layer (12) is applied.   7. Plant pot according to any one of the   1 to 6, characterized in that it has a structure of   a wall with four or three layers in which, on a structure   two or three layer wall   additional inner layer 14 in a favored material roots.   8. Plant pot according to any one of   Claims 1 to 7, characterized in that the wall of the pot   plant (10) is made of polyvinyl chloride.   9. Plant pot according to any one of   Claims 1 to 7, characterized in that the wall of the pot   plant (10) is made of polystyrene.   10. Plant pot according to any one of   Claims 1 to 7, characterized in that the wall of the plant pot (10) is made of polypropylene.