LU83112A1 - POT IN SYNTHETIC THERMOPLASTIC MATERIAL - Google Patents

Description

2

The present invention relates to a pot with thin walls, in particular for plants, based on a stamped thermoplaetic synthetic material, this pot having a bottom opening for the flow of water.

In the patent in the German Federal Republic 1,729,548 is described the subsequent shaping of holes for the flow of water in the bottom of cup-shaped containers of thermoplastic synthetic material, which have previously been produced by stamping, and this in view to be able to use such pots, among others as pots for plants.

However, it has become apparent that such plant pots cannot be used in practice because the wall of such thin-walled plastic containers normally allows sufficient light to pass through so as to be harmful to the roots of? plants. Furthermore, when producing pots for plants made of thin-walled synthetic material, it is desirable that these pots have a decorative appearance on their peripheral surface, this peripheral surface having to be as far as possible suitable from a dyed point of view for flower pots. in soil or similar containers for plants.

The technical problem underlying the invention is to provide a light-impermeable wall with a decorative surface on its external face.

To solve this problem, it is proposed according to the invention that the peripheral wall and the bottom wall formed from a part of the plant pot be formed from a laminated product which contains a layer impermeable to light and a unit * 3 decorative outer layer.

It appeared particularly advantageous to tint the layer impermeable to light substantially in black and to produce it in the form of the bearing layer of the wall of the plant pot. In this way, it is possible to prepare this light-impermeable layer in a recovery material, for example, during the production of articles of synthetic material, the residual sheets obtained or even the ma--. worn out, and load it with the corresponding black pigments. This means considerable profitability of the plant pot. This reduction in cost becomes all the more effective as this light-impermeable layer dyed black can be used simultaneously as a support layer for the plant pot. This means that, on the one hand, the thickness of this layer is sufficient to guarantee impermeability to light even during moderate black dyeing and that, on the other hand, the support layer forming the essential material fraction of the wall is prepared from an inexpensive recovery or secondary material. Other improvements and improvements can be obtained by providing the inner light-impermeable layer as a support layer and coating it with a thin decorative layer. Advantageously, the decorative layer can be provided with a covering pigmentation of the desired shade.

According to an advantageous embodiment of the invention, the wall of the plant pot can be made up of three layers, the inner layer impermeable to light for /

Z

/ U '«4 before being coated with an insulating layer from the dyeing point of view, pigmented, and the decorative layer can be applied to this insulating layer from the dyeing point of view.

According to another advantageous embodiment of the invention, one can provide, for a wall structure with four or respectively three layers, an additional internal layer of material compatible with respect to the roots, starting from a structure of wall with two layers or respectively with three layers.

In a particularly advantageous manner, the wall of the plant pot can be made of polyvinyl chloride, polystyrene or polypropylene.

Other details and particularities of the invention will emerge from the description given below, without implied limitation and with reference to the attached drawings.

Figure 1 shows a side view of a plant pot according to the invention.

Figure 2 shows a sectional view through a two-layer wall structure.

Figure 3 shows a sectional view through a three-layer wall structure.

Figure 4 shows a sectional view through a four layer wall structure.

! Figure 5 shows a sectional view of another embodiment of a three-layer wall structure.

FIG. 1 represents a plant pot 10, the; bottom wall and the peripheral wall are made in one piece.

In the bottom area is provided a stacking ring 16 which serves / / / 5 for form bond adhesion of a number of mutually nested plant pots. The bottom openings 15 necessary for the flow of water are formed in the bottom of the plant pot 10 by means of a known melting process. To obtain more secure stability, feet 17 are made on the outer periphery of the bottom of the plant pot.

On the open side, the plant pot 10 has a flared peripheral ring 18 which, in the region of the opening, is folded outwards in the manner of a flange and is substantially at right angles.

FIGS. 2 to 5 show embodiments of a wall structure of the plant pot 10 made of thermoplastic synthetic material. FIG. 2 shows a structure with two layers of the bottom wall and of the peripheral wall made in one piece. The laminate product thus illustrated consists of an internal light-impermeable layer 11 which is simultaneously produced in the form of a support layer. The impermeability to light of this internal layer 11 is obtained by pigments 19 embedded therein. These pigments 19 are preferably black in color. Thanks to this dark dyeing of the inner layer 11, the passage of light which adversely affects the roots is prevented. A decorative layer 12 is applied by coextrusion, in the form of an outer layer, to this inner layer 11 impermeable to light.

This decorative layer 12 is also provided with a covering pigmentation 20, the shade of this pigmentation 20 being able to be maintained in terracotta brown, thus giving the pot / / / '6 * for plants 10 made of thermoplastic synthetic material the external appearance. a pot for plants made of ceramic material, in particular terracotta. Depending on the field of application, the pigmentation 20 may also have another shade.

Figures 3 and 4 show, between the inner layer 11 impermeable to light and the outer layer 12 decorative an insulating layer from the dye point of view 13 inserted in addition. This insulating layer from the dye point of view 13 also has a pigmentation 20 which is identical in color to the pigmentation 20 of the decorative layer 12. Thanks to this dye insulating layer 13, inserted | in addition, penetration of the inner layer 11 impermeable to light, of black color, is avoided through the decorative layer 12. FIGS. 4 and 5 show a wall structure of the plant pot 10 in which the inner impermeable layer in light 11 is coated with an internal layer! additional 14. This additional internal layer 14 is made of a thermoplastic synthetic material, favorable to the roots. The laminate product shown in Figures 3 to 5 is also prepared by coextrusion.

• I ~ - | The layers 11, 12, 13 and 14 of the laminated product can pi i - „be made from a base of identical material, for example polyvinyl chloride, polystyrene or polypropylene. It is also possible to prepare the different | layers of the laminated product from different thermoplastic synthetic substances, and thus for example the internal light-impermeable layer 11, which simultaneously acts as a support layer, can be made of polypropylene which! //

Claims (11)

1. Pot, in particular for plants, with a thin wall. Based on a stamped thermoplastic synthetic material, comprising a bottom opening for the flow of water, characterized in that the bottom wall and the peripheral wall, made from a single piece, the plant pot is formed from a laminated product which contains a light-impermeable layer and an external decorative layer. 2. Pot according to claim 1, characterized in that the light-impermeable layer is of substantially black color and in that it is produced in the form of the support layer of the wall of the pot. : r • 8 ί i ί! " 3. Jar according to either of claims 1 and 2, characterized ρπΓ a two-layer structure of the laminated product. 4. Pot according to claim 3, characterized in that the internal light-impermeable layer is produced in the form of a support layer and in that it is coated with a thin decorative layer. 5. Pot according to claim 4, characterized in that the decorative layer has a covering pigmentation of the desired color. 6. Jar according to either of claims 1 and 2, characterized by a three-layer structure in which the inner layer impermeable to light is coated with an insulating layer from the dyeing point of view, pigmented, and what the decorative layer is applied to this insulating layer from the dye point of view. 7. Pot according to any one of claims 1 to 6, characterized by a wall structure with four layers or respectively with three layers, in which an additional internal layer of a material favorable to the roots is provided, from a structure of two-layer or three-layer walls respectively. 8. Pot according to any one of claims 1 to 7, characterized in that the wall of the pot consists of pelyvinyl chloride. 9. Pot according to any one of claims 1 to 7, characterized in that the wall of the pot is made of poly- / styrene. # fr P 10. Pot according to any one of claims 1 to 7, characterized in that the wall of the pot is made of polypropylene. 11. Pot made of thermoplastic synthetic material, as described above and / or as illustrated in the accompanying drawings. Drawings: - TO ------ boards „JLCL ... panes including —d .......... P5 *" ** c'c p? RH? 3 f ->: crip '. ion * '/; ·: ί o; Revenuications ...... / _______ tju-js description Luxembccrp, h? ~ Le rr ^ qc! attracts: / V --- Charles München