ES1068302U - Film for crops (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Film for crops, of the type of plastic film for agricultural use in both padded and tunelillos and covers, in which by means of side hem (2) a zone for cargo pockets is enabled along the longitudinal lateral direction of the film, in that said side pockets (3) are made by intermittent longitudinal welds (4) in the area of the side hem (2) determining an overlap area (6), a welded zone "S" and an open or unwelded zone "b" "; said side pocket (3) occupying the entire length of the film and being accessible, at least from the upper area or spine of the film (1) by said openings or unwelded branches "b", characterized in that inside said side pockets ( 3) there is disposed a permeable band (5) to the water containing hygroscopic material and which as such is susceptible to being impregnated thereof, appreciably increasing its weight. (Machine-translation by Google Translate, not legally binding)

Description

Film for crops.

Field of the Invention

The present invention aims at a film plastic of those intended for agricultural use, of the type for padding or for tunnel or roof, made with pockets laterals containing hygroscopic material.

Background

Different plastic films are known for agricultural use to protect crops from seasonal rigors, or thanks to the material composition of these plastics benefit the crop with the selective effects against the different
radiation

One of the possible uses of these films, for example, applied to ridges in the form of quilts or  forming small tunnels where the lines of the crops, require the burial of the sides or skirts of said films. Said procedure although relatively simple, It is based on the use of a material available in the own land, which is the land, is laborious to install, slow to withdraw, when it is no longer necessary to use the film, and finally has a tendency to deteriorate the film, tearing it apart, both in the grounding on said side skirts, as in occasion of its withdrawal.

Thus, the main object of the present  invention is to provide a means of fixing the plastic film to its work area, simple and convenient to use, which over time allow the comfortable and economical removal of the film.

Another of the main objects of this invention is to provide a plastic crop film that makes unnecessary the task of burying the skirts for fixing the Same in the field.

These and other advantages of the present invention they will be more evident throughout the description of it.

Brief Explanation of the Invention

The present invention consists of a film for crops, of the type of plastic films for agricultural use both for quilts and for tunnels and covers, in which side pockets have pockets made length of the longitudinal lateral direction of the film, said pockets incorporate a band of water permeable material that It contains hygroscopic elements capable of fixing it.

Said hygroscopic band can be impregnated with water, either by irrigation, also by rain, which penetrates through the conduits provided in said pockets affecting said band, or by direct filling with pressurized water by means of holes in the ends of the pockets.

Once you have received enough water said band becomes heavy, retaining by its own weight the film that is fixed to the crop surface, similar to how obtains by means of the known technique burying with earth the sides of the film, or by combining earth and water filling said side pockets.

Brief description of the drawings

For a better understanding of the invention, accompanies it with a sheet of drawings, merely illustrative and not limiting of the invention.

Figure 1 represents a top view and schematized of a film according to the preferred embodiment of the invention, where the formation of the pockets have been detailed lateral and highlighted the presence of the hygroscopic band in the same.

Figure 2 is a cross-sectional view. from the film in the previous figure.

Detailed Explanation of the Invention

The present invention consists of a film for crops, of the type of plastic films for agricultural use both in quilts and in tunnels and covers, in which side hem (2) pockets (3) have been made length of the longitudinal lateral direction of the film.

Said side pockets (3) are made by intermittent longitudinal welding (4) that perform an "S" welded zone and an "B" open or un welded zone, so that they enable a total useful length "D" of each zone. Said side pocket (3) constructed in said area of hem (2) occupying the entire length of the film and being accessible, at least from the top or back of the film (1) by said openings or sections without welding "B". Such hems or bellows (2) being of width "f", while the useful width of  said pockets (3) is "b", as shown in the figure one.

Inside said side pockets (3) there is a water permeable band (5) that contains hygroscopic material and as such is susceptible to impregnated of it increasing its weight.

This hygroscopic band (5) forms approximately a tube that runs the length of said pockets  lateral (4). In the use of this film, the water of sprinkler or rain irrigation reaches the overlaps (6) of said hem (2) to enter through the openings "B" e impregnate said hygroscopic band (5).

In another of the possible uses of the invention, the film (1) has filling holes (7) of the pockets (3) which by means of sufficient pressure allows water to be injected into said hygroscopic band
(5).

The hygroscopic band (5) can come, in those cases of practical realization where it is convenient, partially compartmentalized by sewn or welded sections (8) for better dispersion and / or dosage of the material hygroscopic housed inside.

The type of pockets and hygroscopic band that represents the film of the present invention may be present in any type of film formed by any combination of layers of different colors and / or properties without representing it or alter the essence of the invention that is considered included in the same.

Similarly, the present invention contemplates the existence of pouring holes (9) that make it possible to lighten said pockets of the leftover water remains and that do not impregnate said hygroscopic band
(5).

As a result, when impregnated with water only the hygroscopic band, by its very nature this gains in weight, so that filling can be stopped when sides of the film (1) weigh enough to retain it in the ridge.

Similarly, when irrigation is carried out by  sprinkling in the care of the crop, said hygroscopic band (5) It regains its moisture and weight.

The invention allows, when it is desired to remove the film, wait for the drying of said hygroscopic band (5) that makes it light, facilitating the removal of the film without mediating any other operation than its
pick up

It is understood that in the present they can be variables how many details of finish or shape do not alter the essence of the invention.

Claims (5)

1. Film for crops, of the type of plastic film for agricultural use both in quilts and in tunnels and covers, in which by means of a side hem (2) an area for loading pockets is enabled along the longitudinal lateral direction of the film, wherein said side pockets (3) are made by intermittent longitudinal welds (4) in the side hem area (2) determining an overlap area (6), a welded area "S" and an open or unsealed area "B "; said side pocket (3) occupying the entire length of the film and being accessible, at least from the upper area or spine of the film (1) by said openings or unbranded sections "B", characterized in that inside said side pockets ( 3) there is a water permeable band (5) that contains hygroscopic material and which as such is susceptible to impregnated therein, substantially increasing its weight. 2. Crop film according to claim 1, characterized in that said side pockets (3) have filling holes (7) of pressurized water. 3. Film for crops, according to the preceding claims, characterized in that said filling holes (7) are provided with plugs or valves. 4. Film for crops, according to the preceding claims, characterized in that said hygroscopic band (5) is at least partially compartmentalized by sewn or welded sections (8) aimed at better dispersion and / or dosing of the hygroscopic material housed inside. 5. Film for crops, according to the preceding claims, characterized by the existence of holes (9) for pouring into said side pockets (3) that allows to lighten them from the remains of water or dust that do not impregnate said hygroscopic strip (5).