JPH1142023A - Curtain film to be used in framing greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject curtain film improved in operability, capable of reducing the consumption of heavy oil as fuel, by perforating drain/air holes optimum for thermal insulation, humidity retention and ventilation. SOLUTION: This curtain film 3 is obtained by perforating an agricultural vinyl plastic film with drain/air holes 4, 5 either of a single kind 2-5 mm in diameter or plural kinds >=3 mm in average diameter at appropriate intervals and by attaching working edges 2 to both sides of the longitudinal or transverse edges of the film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a curtain film used in an agricultural house such as an agricultural vinyl house.

[0002]

2. Description of the Related Art In an agricultural house such as an agricultural vinyl house, a so-called curtain film has been conventionally used for keeping the temperature of the house when raising seedlings or cultivating crops such as vegetables. A conventional carten film is wound around a winding core in an agriculture house such as a vinyl house, on an overhead wire or a support stretched over an appropriate height and width according to a cultivated crop. A means to stretch and cover the film,
1993 Utility Model Application Publication No. 10598 (Jpn.
-95864). Japanese Utility Model 59-95864 is per 1 m ² an opening but the diameter is a requirement by providing the following hole 4mm or more in diameter 1mm area 1 m ² per one or more 1
It is almost difficult for the water collected on the film to flow down,
Further, since the number is one or more, even if the number is several hundreds and thousands, even if it is a hole having a diameter of 1 mm, the heat retaining effect of the curtain film is not desired, and the strength remains a problem. Of course, the same applies to apertures having a diameter of 2 mm, 3 mm, and 4 mm. If apertures having different diameters are combined to form tens, hundreds, or thousands of apertures, as described in the specification as a perforated film. It does not have the effect of keeping heat, and since the means of crop management differ from those at the time of raising seedlings, at the time of raising seedling, and at the time of harvesting, all of the perforated films having the structure as described in the specification have the effects described in the specification. However, no specific technical means for achieving the effect is specified in the specification. Large-, medium-, and small-sized agricultural greenhouses and vinyl houses are used for emergency cultivation and forcing cultivation of agricultural crops. The combustion of (mainly heavy oil) is also necessary, and the greater the temperature difference between the house and the outside air, the greater the care and effort must be taken in managing the types of cultivated crops, the temperature in the house during the growing process, and managing the ventilation. Therefore, water supply by automatic temperature control and automatic water supply equipment and humidity control in the house are currently performed in large-scale houses, but the larger the temperature difference between the house and the outside air, the larger the house The amount of heavy oil used to maintain the proper temperature and humidity inside the plant is the biggest cause of increasing the cultivation cost. However, among the means of the claims for utility model registration described in Japanese Utility Model Publication No. 5-10598 previously provided, what kind of means will specifically exhibit the effect described in the specification, that is, 1 m of synthetic resin film ^By means of providing one or more through holes having a diameter of 1 mm or more and 4 mm or less per ² , the number of holes and the combination of the hole diameters are included in an innumerable huge number, and those skilled in the art, that is, farmers, It is obvious that it is not easy to judge and use what kind of perforated agricultural film should be used after the seedling and planting.
(Impossible). And until now, 5-10
No. 598 perforated agricultural film is not available on the market. In the case of a hole with a diameter of 1 mm, drainage on the film is difficult due to the surface tension. Even if the balance of the surface tension is broken and the accumulated water drops, the hole is closed immediately by the surface tension and the water pool called the fishbowl phenomenon occurs. Occurs immediately. Naturally, ventilation between the upper space and the lower space of the curtain film is almost impossible, so that the lower space of the curtain film, that is, the crop growing space, is always humid and warps to cause disease. The perforated film for the lining curtain needs to have a certain degree of air permeability as well as a heat-retaining action, and must be rich in workability as a curtain film. The workability of expanding and uncovering as necessary is an extremely important requirement for perforated films used for agricultural houses, and the invention according to the Japanese Patent Publication No. 5-10598 for both the heat retention and the air permeability. Does not specify the technologies that can be implemented, and it is a necessary condition that the workability is high because the films are usually extremely large in area, but these technologies are not disclosed at all (even in the drawings). .).

[0003]

The problems to be solved by the present invention are that the heat retention and the moisture retention are ensured even during the cultivation after raising seedlings or transplanting, and the film has an appropriate air permeability and is formed on the film. It is an object of the present invention to provide a curtain film for use in an agricultural house having a drain hole and a vent hole capable of dropping water without retaining water on the film.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a synthetic resin film used in an agricultural house, which has a diameter of 2 mm to 5 m.
at a suitable interval, preferably 10 m
cm or less than 20 cm, with a kind of single hole, pierced or arranged in parallel or with a diameter of 2 mm or more and 5 m
Combining two or more single holes within m with an average diameter of 3 mm or more, and arranging openings with an interval of 10 cm or more and 20 cm or less, and further providing working edges on both vertical and horizontal sides The above problem was solved by constructing a curtain film used in a house.

[0005]

FIG. 1 shows a first embodiment of a curtain film (3) (hereinafter referred to as "carten film") used in an agricultural house. 2mm and parallel at 20cm intervals before and after left and right (A1) (A2) (A
3) Plan view explanatory drawing of the curtain film opened at ...
FIG. 2 shows a second embodiment, in which a water drain / vent hole (1) having a diameter of 2 mm is arranged in parallel between (A1) and (A2) 20 cm in front, back, left and right.
(A3) ... and 20cm spacing (B1) (B2)
(B3)... The openings are arranged in a zigzag form with the working edges (2) provided on the left and right side edges of the curtain film. Therefore, parallel (A1) (A2) (A3) ...
Are arranged in parallel (B1) (B2) (B3)... The distance between the single holes is 10 cm or more and 20 cm or less. The working edge (2) uses a hard tape or corner tape for packing, a rope having an appropriate diameter, a long tube made of a synthetic resin having an appropriate diameter, and the like. It is constructed by wrapping and sewn or welded both sides folded back into a bag shape. The curtain films (3) of the first and second embodiments are optimally used after seeding until germination and during the seedling stage.

[0006]

FIG. 3 shows a third embodiment in which drain and vent holes (3) having a diameter of 3 mm are arranged in parallel at intervals of 20 cm in front, rear, left and right (C1).
(C2) (C3)... FIG. 4 shows a fourth embodiment in which a drain / vent hole (4) having a diameter of 3 mm is formed in front, rear, left and right 20c.
m-parallel parallel (D1) (D2) (D3) ... and (D '
FIG. 1 is an explanatory plan view of a curtain film (3) having a configuration in which holes are arranged in a plover shape by (1) (D'2) and (D'3). The construction of the working edge (2) is the same as in the first and second embodiments. These two embodiments can be used from the seedling stage to the harvest stage depending on the type of crop.

[0007]

FIG. 5 shows a fifth embodiment in which drain and vent holes (5) having a diameter of 3.5 mm are arranged at intervals of 20 cm in front, rear, left and right (E).
1) (E2) (E3) is a curtain film (3) having a configuration in which apertures are provided, and FIG. 6 shows a drain / vent hole (5) having a diameter of 3.5 mm in the sixth embodiment. 20c
.. with a parallel arrangement of (F1) (F2) (F3)... and parallel (F′1) (F′2) (F′3). FIG. 4 is a plan view of the film (3). Note that parallel (F'1) (F'2) (F'3)
.. Are arranged at the intermediate positions of the parallel (F1) (F2) (F3). That is, it is a plover-like arrangement. The construction of the working edge of the curtain film (3) is the same as in the previous embodiment.

[0008]

FIG. 7 shows a seventh embodiment in which a drain / vent hole (3) having a diameter of 3 mm and a drain / vent hole (5) having a diameter of 3.5 mm are alternately arranged in parallel (G1) at an interval of 20 cm in front, rear, left and right. G2)
FIG. 8 is an explanatory plan view of a curtain film (3) having a configuration in which apertures are arranged as (G3)... And parallel (H1) (H2) (H3). Parallel drainage and ventilation holes (4) (J1) (J2) (J3) ... and drainage ventilation holes (5) having a diameter of 3.5 mm (K1) (K
2) (K3) ... is a curtain film (3) in which holes are arranged in a zigzag manner at intervals of 20 cm. In both the seventh and eighth embodiments, the configuration of the working edge (2) is the same as in the previous embodiment.

[0009]

FIG. 9 shows a ninth embodiment in which a drain / vent hole (1) having a diameter of 2 mm is arranged in parallel (L1) at intervals of 20 cm in front, rear, left and right.
(L2) (L3) ... and a drain / vent hole with a diameter of 5 mm
(6) side by side 20cm spacing (M1) (M2)
(M3) is a curtain film (3) in which the drainage vents (1) and (6) are arranged in a staggered manner. FIG. 10 shows a tenth embodiment having a diameter of 2 mm. Parallel (N1) (N2) (N3) of drainage and ventilation holes (1) and parallel (O1) (O2) of drainage ventilation holes (6) having a diameter of 5 mm.
(O3) is a curtain film (3) provided with apertures at the same intervals in front, rear, left and right. In both of the ninth and tenth embodiments, the configuration of the working edge (2) is the same as that of the previous embodiment.

[0010]

FIG. 11 shows an eleventh embodiment of the present invention, in which water drainage / vent holes (1) having a diameter of 2 mm are arranged in parallel (P1) (P2) (P3).
And a 4mm diameter drain / vent hole (7) in parallel (Q1)
(Q2), (Q3)..., Each hole (1) and (7) have a horizontal spacing of 20 cm, and each row (P1) (P2)
(P3) ... and (Q1) (Q2) (Q3) ... A curtain film (3) in which openings are arranged in parallel with the spacing being 20 cm. FIG. 12 shows a twelfth embodiment in which a drain / vent hole (1) having a diameter of 2 mm is arranged in parallel at intervals of 20 cm (R1).
(R2) (R3) ... and drain and vent holes (7) having a diameter of 4 mm are arranged in parallel at intervals of 20 cm (S1) (S2) (S3)
... And a drain film / vent hole (1) (7) is a curtain film (3) arranged in a zigzag manner. The configuration of the working edge (2) in the eleventh and twelfth embodiments is the same as that in the previous embodiment.

[0011]

FIG. 13 is a cross-sectional explanatory view showing an example in which a drain / vent hole is implemented in a three-layer (multi-layer) film, in the case of heat melting. The multilayer film is a synthetic resin film (9) manufactured in two or three layers in the injection manufacturing process. The holes may be punched and opened, but as in this embodiment, the holes are melted and opened with a hot melting needle (8) having an appropriate diameter. At that time, the periphery of the drain / vent hole opened by the hot-melt needle (8) at the time of opening is fused by fusion. Reference numeral (10) is the fusion zone.

[0012]

At present, there are greenhouses and vinylhouses in agricultural houses, but in any case, there are large to small houses. Many of these so-called greenhouses and greenhouses are mainly intended for emergency cultivation or forcing cultivation of vegetables and fruits and vegetables, and thus must be configured to enhance the greenhouse effect. In particular, since the temperature is low from autumn to winter, heavy oil combustion is used to maintain the temperature inside the house at the appropriate temperature for crop cultivation.However, in winter when the outside air is cold, it burns day and night, so the fuel oil cost Is a major factor in raising the cost of crop production. So, greenhouse farmers are nervous about how to save on fuel costs,
As one of the solutions, as shown in FIG.
1) In a greenhouse, a curtain film (3) is stretched to an appropriate height from a cultivated crop (12) to form a house (11), particularly a crop growing space (14). We are working to maintain a suitable temperature by preventing the temperature in the parentheses.

The germination temperature of the seeds, the temperature of the seedlings after germination, the temperature required for the growth of the seedlings after planting, and the like have appropriate temperatures according to the timing, and the humidity in the house must be maintained at an appropriate level. In recent years, even devices that can automatically adjust temperature, humidity, ventilation, etc. have been provided, but it is still difficult to maintain the temperature in a large house (11), particularly in winter, at an appropriate temperature, and the amount of heavy oil burnt is low. Increase. For this reason, farmers have traditionally referred to as curtains in order to maintain the temperature by spreading the synthetic resin film for agricultural use at an appropriate height from the cultivation floor, but the temperature and humidity of the upper and lower spaces of the curtain film have been adjusted. The fact was that it was difficult.

In a conventional non-porous curtain film, not only is it difficult to control the temperature and humidity, but also the moisture in the upper space is condensed due to the difference between the upper space temperature and the outside air temperature of the curtain film. Several puddles form on the film. Because the weight of the puddle causes the curtain film to sag and not exhibit the effect of the curtain film, and sometimes it is not rare to damage the seedlings and crops that are being raised.
The inventor finally reached the present invention through many years of research and experiments in order to solve these farmers' troubles as a manufacturer and seller of agricultural synthetic resin films, and could finally provide the present invention.

There are various types of greenhouses and vinyl houses (11) for agricultural use, except for the greenhouses used for outdoor cultivation.
Le House ”is hereinafter referred to as“ House ”. ) Cultivation requires a curtain film (3) to keep heat and save fuel consumption. In Examples 1 and 2, the drainage and ventilation holes (1) having a diameter of 2 mm were formed in a curtain film (3) at 20 cm intervals in parallel and in a whisker-like shape.
In mm, the hole (1) is closed by the surface tension of the water, and the amount of the water pool increases until the weight of the water breaks the surface tension. When the balance is broken, the hole (1) flows down at once from the hole having a diameter of 1 mm. Since the diameter of the water hole flowing down is small, the water force is large and continues for a long time, and the smaller the number of the holes (1), the longer the time to flow down. Therefore, immediately before germination or at the seedling stage, especially on the surface of the seeding bed. Water holes are opened and the seedlings are damaged. In the seedling stage after sowing, the height at which the curtain film (3) is spread is not high in management, so special attention should be paid to the control of the temperature and humidity in the lower space of the curtain film (3). Must. However, in the water draining / venting hole (1) having a diameter of 1 mm, even a small amount of water drops causes a water film due to surface tension and loses air permeability at all, and the temperature rises excessively due to heavy oil heating at night, affecting germination and damaging the seedlings. This is also a tentative one. Moreover, when it becomes humid, it will cause the occurrence of disease. In the present invention, as a result of the experiment, the diameter of the hole (1) opened in the curtain film (3) used during sowing, germination, and seedling stage is 2 mm, and the opening interval is optimally 20 cm, and the interval of 15 cm or more. Up to 20 cm, there is almost no damage due to drainage (even if dew condensation occurs on the curtain film, it is dripped from the drainage / vent hole (1) with little accumulation. That is, no water film is formed due to surface tension. ), And the lower space (14) and upper space (1) of the curtain film (3).
5) and the air permeability is maintained, and if the temperature in the space (14) rises, the air above and below the curtain film (3) is adjusted by convection through the drain / vent hole (1) to adjust the temperature. At that time, the humidity is also adjusted. The space (11) covered with the curtain film (3) is small and has a small outside area in contact with the cold outside air, so that it has a large heat-retaining effect to obtain the temperature required for germination and seedling raising. Heating costs are also small. That is, it can be said that the cartin film (3) of the present invention of Examples 1 and 2 is most suitable for germination and seedling after sowing on a nursery bed. Working edge (2)
Is very convenient for expanding and controlling the opening and closing of the curtain film (3), and has the merit that the storage can be wound around the working edge (2). The term “management opening / closing” refers to management in which part or all of the stretched curtain film (3) is peeled off or the stripped one is stretched and covered, depending on the necessity of heat insulation, ventilation, and the like.

Next, the operation of the third to twelfth embodiments will be described. 3 to 12 show an embodiment of the present invention. In the case of the curtain film (3) of the present invention, the diameter of the single hole is 3 mm or more and 5 mm and the interval between the holes is 10 mm.
It is sufficient if the height is between 20 cm and 20 cm. When the diameter is less than 10 cm, the number of holes increases, so that the heat retention is reduced. In the case of a single hole having a diameter of 5 mm, the heat retention is reduced when the distance is 20 cm or more. In order to optimally maintain the heat retention, moisture retention and air permeability, the average diameter of the drain hole is 3 mm regardless of whether it is a single hole or a combination of multiple diameters.
It is optimal that the distance is not less than 5 mm and not more than 10 cm and not more than 20 cm as described above. However, if the diameter is not more than 5 mm, adjustment is made so as to shorten the opening interval. According to the experiment, the opening interval is set to 1 cm to 2 cm so that the diameter becomes 1 mm smaller.
If it is shortened, there is no effect on the management such as heat insulation. The third to twelfth embodiments may be used as a curtain film (3) used for house management after transplanting an adult seedling.
The seventh embodiment shown in the drawing and the eighth embodiment shown in FIG. 8, that is, the configuration of the alternately parallel or plover-like arrangement of the drainage and ventilation holes having a diameter of 3 mm and 3.5 mm is optimal for heat retention, ventilation and moisture retention. Even after transplanting or direct sowing cultivation, the extension height of the curtain film (3) (height from the floor) according to the growth of the crop.
If you raise the height of the leafy vegetables and confectionery (strawberry, watermelon,
Even tall melons, cucumbers, etc. can be used throughout the entire period from planting to harvesting.

As shown in FIG. 14, the curtain film (3) is stretched by providing a crop and a certain space (14) to place and extend the curtain film (3) as shown in FIG. 1
3) etc. may be provided and the work edge (2) may be used to extend the work edge. In addition, when the temperature or humidity rises rapidly for management or when ventilation ventilation is required, the work edge (2) may be used. The work edge (2) is extremely convenient for the work of peeling off as appropriate by using the tool.

FIG. 13 is a view for explaining the use of a hot hole needle (8) to open a drain / notify hole in a three-layer (multi-layer) film (9). When the film is used, the periphery of the opening is melted and solidified, so that no gap is formed between the layers of the film, so that dew condensation water does not enter the film layer, the curtain film is not damaged, and the use period of the film is long, that is, the service life is long. Will be kept. In each of the above embodiments, when the drain / vent holes are arranged in a plover shape and opened, the left-right space between the holes is 20 cm, but the space between the front and rear adjacent holes is 20 c.
It is shorter than m. Therefore, 10cm or more and 20cm
It just means that it is fine. The opening intervals and arrangement of the water drainage and ventilation holes are sufficient if the number of the above embodiments is sufficient, and if there is any inconvenience during use, the curtain film is extended from the floor surface (it may be referred to as installation). Adjusting the height is sufficient for heat retention and ventilation under the carton film, and the farmers monitor the temperature and humidity with a thermometer or hygrometer,
Attention should also be paid to the management of ventilation in case of emergency so that the crop can be breathed.

[0019]

As described above, the curtain film of the present invention can be used for draining and venting even when water droplets generated on the curtain film at night or due to a difference between the inside temperature and the outside air temperature are collected on the curtain film. Has a diameter of 2 mm or more, so that the holes are not blocked by surface tension, so that water collected by condensation does not occur, that is, a so-called flowerpot phenomenon occurs. It does not damage nurseries or crops. Next, since the most important purpose of the curtain film is to keep heat, there is a temperature difference between the upper and lower portions of the stretched carten film. That is, the space (14) below the curtain film is usually the space above (15).
The temperature is kept higher. And inevitably the humidity is always high. At this time, it is sufficient that the space (14) is always kept at an appropriate temperature and an appropriate humidity. However, in the present invention, since the drain and vent holes are opened at appropriate intervals and numbers with an appropriate size so as not to be blocked by surface tension, the worst case where air convection occurs in the upper and lower spaces of the curtain film Is rarely invited. Also, as in each example, if several kinds of combinations of water drainage and ventilation holes and holes having different sizes are prepared, it is possible to reach from the sowing of the crop to the seedling raising stage and the fixed planting and harvesting. It can be used at any time of growth until it grows, and if it is still a problem, the inside of the house can always be kept at the appropriate temperature and humidity by adjusting the height at which the curtain film is extended. Therefore, it is possible to suppress the occurrence of diseases in crops and to achieve many effects such as avoiding excessive fuel consumption. Further, since the working edge is formed on both longitudinal edges or lateral edges of the curtain film, it can be wound up and stored with the working edge as a core, and can be easily extended on a wire or a support. However, even when the stretched curtain film has to be peeled off urgently in house management, there is a working edge, so it is possible to peel off part or all of it promptly, which is extremely good for house management. Play.

[Brief description of the drawings]

 The drawings all show embodiments of the present invention.

FIG. 1 is an explanatory plan view of a curtain film in which drain and vent holes having a diameter of 2 mm are opened in parallel.

FIG. 2 is an explanatory plan view of a curtain film in which a drain / vent hole having a diameter of 2 mm is opened in a plover shape.

FIG. 3 is an explanatory plan view of a curtain film in which drain holes and vent holes having a diameter of 3 mm are opened in parallel.

FIG. 4 is an explanatory plan view of a curtain film in which a drain / vent hole having a diameter of 3 mm is formed in a plover shape.

FIG. 5 is an explanatory plan view of a curtain film in which water drainage and ventilation holes having a diameter of 3.5 mm are opened in parallel.

FIG. 6 is an explanatory plan view of a curtain film in which a drain / vent hole having a diameter of 3.5 mm is formed in a plover shape.

FIG. 7 is an explanatory plan view of a curtain film in which drain and vent holes having a diameter of 3 mm and a diameter of 3.5 mm are alternately opened in parallel.

FIG. 8 is an explanatory plan view of a curtain film in which drain and vent holes having a diameter of 3 mm and a diameter of 3.5 mm are opened in a whirlpool shape.

FIG. 9 is an explanatory plan view of a curtain film in which water drainage and ventilation holes having a diameter of 2 mm and a diameter of 5 mm are alternately opened in a parallel plover shape.

FIG. 10 is an explanatory plan view of a curtain film in which drain and vent holes having a diameter of 2 mm and a diameter of 5 mm are alternately opened in parallel.

FIG. 11 is an explanatory plan view of a curtain film in which drain and vent holes having a diameter of 2 mm and a diameter of 4 mm are alternately opened in parallel.

FIG. 12 is an explanatory plan view of a curtain film in which drainage and ventilation holes having a diameter of 2 mm and a diameter of 4 mm are alternately arranged in parallel and are opened in a plover shape.

FIG. 13 is an enlarged cross-sectional explanatory view when a three-layer agricultural film is opened by heat melting.

FIG. 14 is an explanatory cross-sectional view of an agricultural vinyl house;
This shows the expanded state of the ten film.

[Explanation of symbols]

1 Drain and vent (diameter 2 mm) 2 Working edge 3 Curtain film 4 Drain and vent (diameter 3 mm) 5 Drain and vent (3.5 mm diameter) 6 Drain and vent (diameter 5 mm) 7 Drain and vent (diameter 4 mm) 8 Thermal opening needle 9 Multi-layer film 10 Melting part 11 Agricultural vinyl house 12 Crops 13 Wire or support (wires or supports are stretched in the form of a support. (A1) 2mm diameter drainage and ventilation holes arranged in parallel in the first embodiment (A2) 2mm diameter drainage and ventilation holes arranged in parallel in the first embodiment (A3) 2mm diameter drainage in the first embodiment Parallel arrangement of ventilation holes (B1) Parallel arrangement of dribbles with 2 mm diameter drainage and ventilation holes of the second embodiment. (B2) Arrangement of dribbles with 2 mm diameter drainage and ventilation holes of the second embodiment. Parallel (B3) 2 mm diameter drainage and ventilation according to the second embodiment (C1) Parallel arrangement of 3 mm diameter drainage and ventilation holes of the third embodiment (C2) Parallel arrangement of 3 mm diameter drainage and ventilation holes of the third embodiment (C3) Third embodiment (D1) Drain and vent holes arranged in a 3 mm diameter puddle of the fourth embodiment (D1) Drain and air holes arranged in a puddle shape of a 3 mm diameter in the fourth embodiment (D2) Draining / parallel arrangement of ventilation holes (D3) Drainage / parallel arrangement of vent holes arranged in a 3 mm diameter diaper of the fourth embodiment (D'1) Drainage arrangement of 3 mm diameter tuboons in the fourth embodiment Parallel arrangement of ventilation holes (D'2) Drainage arranged in a 3 mm diameter plover in the fourth embodiment. Parallel arrangement of ventilation holes (D'3) Drainage arranged in a 3 mm diameter plover in the fourth embodiment. Parallel arrangement of ventilation holes (E1) Parallel arrangement of drain and ventilation holes of 3.5 mm in diameter in the fifth embodiment (E1) (5) Parallel arrangement of 3.5 mm diameter drainage / vent holes of the fifth embodiment (E3) Parallel arrangement of 3.5 mm diameter drainage / vent holes of the fifth embodiment (F1) 3.5 mm diameter of the sixth embodiment (F2) The parallel arrangement of the draining / venting holes arranged in a 3.5 mm diameter according to the sixth embodiment (F3) The parallel arrangement of the draining / venting holes arranged in a 3.5 mm diameter according to the sixth embodiment (F3) The parallel arrangement of the draining / venting holes arranged in a plover shape (F'1) The parallel arrangement of the draining / venting holes arranged in a plover shape having a diameter of 3.5 mm in the sixth embodiment (F'2) Parallel arrangement of drainage and ventilation holes arranged in a 3.5 mm diameter plover (F'3) Parallel arrangement of drainage and ventilation holes arranged in a 3.5 mm diameter plover in the sixth embodiment (G1) Seventh embodiment Example of parallel arrangement of drainage and ventilation holes having a diameter of 3 mm (G2) Example 7: Arrangement of drainage and ventilation holes having a diameter of 3 mm (G3) Seventh embodiment Example of juxtaposition of drainage / vent hole of diameter 3 mm (H1) Example of juxtaposition of drainage / vent hole of 3.5 mm diameter (H2) Example of drainage / vent hole of diameter 3.5 mm of seventh embodiment (H3) Parallel arrangement of 3.5 mm diameter drainage / vent holes of the seventh embodiment (J1) Parallel arrangement of 3 mm diameter drainage / vent holes of the eighth embodiment (J2) 3 mm diameter of the eighth embodiment (3) Parallel drainage and ventilation holes with a diameter of 3 mm in the eighth embodiment (K1) Parallel drainage and ventilation holes with a diameter of 3.5 mm in the eighth embodiment (K2) Parallel drainage and ventilation holes of 3.5 mm in diameter of the eighth embodiment (K3) Parallel drainage and drainage of 3.5 mm in diameter of the eighth embodiment (L1) Dual drainage of 2 mm in diameter of the ninth embodiment Arrangement of vent holes (L2) Drainage of 2 mm in diameter and arrangement of vent holes in ninth embodiment (L3) Diameter of ninth embodiment Parallel drainage and ventilation holes of 5 mm in diameter in the ninth embodiment (M1) Parallel drainage and ventilation holes of 5 mm in diameter in the ninth embodiment (M2) Parallelization of drainage and ventilation holes in the ninth embodiment with a diameter of 5 mm (M3) Parallel drainage and ventilation holes of 5 mm in diameter of the embodiment (N1) Parallel drainage and ventilation holes of 2 mm in diameter of the tenth embodiment (N2) Parallel drainage and ventilation holes of 2 mm in diameter of the tenth embodiment (N1) N3) Parallel drainage and ventilation holes having a diameter of 2 mm according to the tenth embodiment. (O1) Parallel drainage and ventilation holes having a diameter of 5 mm according to the tenth embodiment. (O2) Parallel drainage having a diameter of 5 mm according to the tenth embodiment. Arrangement of pores (O3) Arrangement of drainage and ventilation holes having a diameter of 5 mm in the tenth embodiment (P1) Arrangement of drainage and ventilation holes having a diameter of 2 mm in the eleventh embodiment (P2) Arrangement of 2 mm in diameter in the eleventh embodiment Drainage and parallel ventilation holes (P3) Water of 2 mm diameter in the eleventh embodiment Parallel drainage and ventilation holes (Q1) Parallel drainage and ventilation holes with a diameter of 4 mm in the eleventh embodiment (Q2) Parallel drainage and ventilation holes with a diameter of 4 mm in the eleventh embodiment (Q3) Parallel drainage and ventilation holes with a diameter of 4 mm (R1) Parallel drainage and ventilation holes with a diameter of 2 mm in the twelfth embodiment (R2) Parallel drainage and ventilation holes with a diameter of 2 mm in the twelfth embodiment (R3) Arrangement of drainage and ventilation holes having a diameter of 2 mm in the twelfth embodiment (S1) Arrangement of drainage and ventilation holes having a diameter of 4 mm in the twelfth embodiment (S2) Arrangement of drainage and ventilation holes having a diameter of 4 mm in the twelfth embodiment (S3) Parallel drainage and ventilation holes with a diameter of 4 mm of the twelfth embodiment 14 Lower space of curtain film in house 15 Upper space of curtain film in house

Claims (7)

[Claims] 1. A carton film used in an agricultural house, wherein a single drain hole or a vent hole having a diameter of 2 mm or more and 5 mm or less is formed in the film or a plurality of holes are opened at appropriate intervals with an average diameter of 3 mm or more. A carton film for use in an agricultural house, wherein the film is provided with working edges on both sides in a longitudinal direction or on both sides in a horizontal direction of the film. 2. The method according to claim 1, wherein said agricultural film is made of a synthetic resin having a multilayer structure.
A curtain film for use in the described agricultural house. 3. The draining / venting hole having a diameter of 3 mm, or the draining / venting hole having a diameter of 3.5 mm is arranged in a puddle-like or parallel arrangement with an interval of 10 cm or more and 20 cm. A curtain film for use in the agricultural house according to claim 1 or 2. 4. The draining / venting hole having a diameter of 3 mm and the draining / venting hole having a diameter of 3.5 mm are alternately opened at intervals of 10 cm or more and 20 cm in a plover-like or parallel manner. A curtain film for use in the agricultural house according to claim 1 or 2. 5. The diameter of the drain / vent hole is 2 mm or 5 mm.
2. The method according to claim 1, wherein the holes are formed in a puddle-like or side-by-side manner with an interval of 10 cm or more and 20 cm.
Or a curtain film for use in the agricultural house according to 2. 6. A drain and vent hole having a diameter of 2 mm and a diameter of 4 m.
3. A carton film for use in an agricultural house according to claim 1 or 2, characterized in that the drainage and ventilation holes of m are spaced apart from each other by 10 cm or more and 20 cm, and are arranged in a plover-like or parallel manner. 7. A carton film for use in an agricultural house according to claim 1, wherein the drainage / vent hole is opened by heat melting.