JP6143207B2 - Agricultural solar control film - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an agricultural solar control film, and more particularly to an agricultural solar control film that adjusts a location where a water drop falls in a house.

  Agricultural solar control film installed in a house is known in which unevenness is provided on the film to adjust the amount of incident light in the house (see, for example, Patent Document 1). When the conventional film described in Patent Document 1 is provided with a concave shape extending in one direction on the film, the amount of light is reduced when the summer altitude is high, and the winter sun altitude is low. Increasing the amount of light.

  However, the conventional film has a problem that water droplets are likely to be generated particularly at the convex portions, and when these water droplets fall and water droplets are formed on the crops, they become a hotbed for pests and diseases.

Japanese Patent No. 2910291

  This invention is made | formed in view of such a point, and it aims at providing the solar control film for agriculture which can adjust the water drop dropping location in a house.

An agricultural solar control film according to an aspect of the present invention includes a film base material having an incident surface and an output surface, and a plurality of convex portions and convex portions are formed on the output surface of the film base material. A flat drainage groove that is not provided, and the surface of the drainage groove is an agricultural solar control film having hydrophobicity .

The agricultural solar control film according to an aspect of the present invention is an agricultural solar control film in which the drainage groove is provided in a band shape from one end side of the film to the other opposite end side .

The agricultural solar control film according to an aspect of the present invention is an agricultural solar control film in which the drainage grooves are provided separately at a plurality of locations .

An agricultural solar control film according to an aspect of the present invention includes a film base having an incident surface and an output surface, and a plurality of convex portions are provided on the output surface of the film base, and the plurality of convex shapes. A part of the part is an agricultural solar control film which is a convex part having a non-hydrophilic surface formed on at least a part of the surface .

The agricultural solar control film according to an aspect of the present invention is an agricultural solar control film in which the non-hydrophilic surface is provided in a band shape from one end side of the film to the other opposite end side .

The agricultural solar control film according to an aspect of the present invention is an agricultural solar control film in which one or more of the non-hydrophilic surfaces are provided apart from each other .

  ADVANTAGE OF THE INVENTION According to this invention, the water drop falling location in a house can be adjusted, and a water drop can be prevented from falling to a crop.

Fig.1 (a)-(d) is a figure which shows the solar control film for agriculture by the 1st Embodiment of this invention. Fig.2 (a) (b) is a figure which shows the house in which the sunlight control film for agriculture is installed. FIG. 3 is a diagram showing an agricultural solar control film installed in a house. FIGS. 4A to 4D are views showing the action of the agricultural solar control film. Fig.5 (a) (b) is a figure which shows the effect | action of the sunlight control film for agriculture. 6 (a) and 6 (b) are diagrams illustrating the action of an agricultural solar control film. FIG. 7 is a diagram showing changes in the way of the sun depending on the season. FIGS. 8A to 8D are views showing a modification of the first embodiment. FIGS. 9A to 9D are views showing a modification of the first embodiment. 10 (a) to 10 (c) are diagrams showing an agricultural solar control film according to a second embodiment of the present invention. FIG. 11A to FIG. 11C are diagrams showing a modification of the second embodiment. FIGS. 12A to 12C are diagrams showing a modification of the second embodiment. FIGS. 13A and 13B are views showing a modification of the second embodiment. 14A and 14B are views showing a modification of the second embodiment. FIGS. 15A and 15B are views showing a modification of the second embodiment.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  (First Embodiment) FIGS. 1 to 7 are views showing an agricultural solar control film according to a first embodiment.

  First, the house 20 in which the agricultural solar control film 10 is installed will be described with reference to FIGS.

  In the house 20, plants 21 having a height of about 2 m are planted at intervals of 1 m. The house 20 has a side wall 23 having a height of 3.5 m. The agricultural solar control film 10 is installed on the upper side of the side wall 23, and the agricultural solar control film 10 constitutes the top of the house 20.

  The total height of the house 20 is 5.5 m, and the agricultural solar control film 10 is arranged with an inclination angle of about 23 ° with respect to the horizontal plane. The total length of the house 20 is 8 m.

  As shown in FIG. 2 (a), the sunlight L enters the house 20 at a maximum inclination angle of about 32 ° with respect to the horizontal plane in the winter, and the sunlight in the summer as shown in FIG. 2 (b). L enters the house 20 with an inclination angle of about 78 ° at the maximum.

  Thus, the altitude of sunlight changes along the north-south direction between summer and winter.

  In addition, the altitude of sunlight changes along the east-west direction even during the day (see FIG. 7).

  As will be described later, the solar control film according to the present embodiment allows sunlight to efficiently enter the house 20 from the sun in consideration of the fact that the altitude of the sun changes between summer and winter and also changes during the day. Can guide you.

  Next, the agricultural solar control film according to the present embodiment will be further described.

  As shown in FIGS. 1A, 1B, 1C, and 1D, the agricultural solar control film 10 includes a film base 11 having an incident surface 11a and an output surface 11b. Convex portions comprising a large number of unit prisms 12 are provided on the emission surface 11b. Further, the emission surface 11b is a hydrophilic surface 11c having hydrophilicity. In FIGS. 1B and 1D, the hydrophilic surface 11c is indicated by a broken line.

  Each unit prism 12 has a polyhedron, for example, a rectangular cone shape, and is arranged in a grid pattern on the light exit surface 11 b of the film base 11.

  Here, FIG. 1 (a) is a back view showing the agricultural solar control film 10, FIG. 1 (b) is a cross-sectional view in the X-ray direction of FIG. 1 (a), and FIG. 1 (c) is a unit prism. 12 is a cross-sectional view in the Y line direction of FIG. 1 (d).

  Since each unit prism 12 has a square cone shape, each unit prism 12 refracts the unidirectional sunlight component entering the incident surface 11a of the film base 11 and emits it from the output surface 11b. The component of sunlight in the other direction orthogonal to one direction entering 11a can be refracted and emitted from the emission surface 11b.

  Further, the side surface of the square-cone unit prism 12 is a hydrophilic surface 11c. As a result, the water condensed and adhering to the emission surface 11 b (hydrophilic surface 11 c) does not form droplets but forms a thin film and flows down along the agricultural solar control film 10. For example, the agricultural solar control film 10 is disposed on the top of the house 20 with an inclination, as shown in FIGS. Therefore, the water condensed and adhering to the emission surface 11 b flows along the inclination to the side wall surface of the house 20 and falls along the side wall surface of the house 20 to the ground.

  One direction entering the incident surface 11a of the film substrate 11 is the north-south direction in which the solar altitude changes between summer and winter, and the other direction is the east-west direction in which the solar altitude changes during the day. The unit prism 12 refracts the sunlight whose altitude changes between summer and winter and guides it into the house 20, and refracts the sunlight whose altitude changes during the day and guides it into the house 20. Can do.

  Next, the material of the film base 11 of the agricultural solar control film 10 will be described.

  The film substrate 11 is not particularly limited as long as it has translucency. For example, the film substrate 11 is selected from films made of plastic materials such as polyvinyl chloride, polyolefin, vinyl acetate, and polyethylene, fluororesin films, and glass plates. can do.

  Among these, it is desirable to use a polyolefin film from the viewpoint of heat retention, or a fluororesin film from the viewpoint of durability.

  As a manufacturing method of the film base material 11, if it is a plastic material, it can be directly subjected to shaping such as embossing at the time of heating and melting such as extrusion and inflation, or after UV coating resin is separately applied on the surface after the film production, It may be cured.

  Although there is no restriction | limiting in particular in the thickness of the film base material 11, For example, it is preferable to set it as the range of 75 micrometers-150 micrometers. By setting the thickness of the film substrate 11 within the above range, it is possible to maintain a certain strength while suppressing the weight and raw material cost.

  Next, the manufacturing method of the hydrophilic surface 11c is demonstrated.

  For example, hydrophilicity can be imparted by performing corona discharge treatment on the film substrate 11. In the corona discharge treatment, when the film base 11 passes between corona discharges, a hydrophilic group is introduced on the surface of the film base 11 to become a hydrophilic surface 11c. The imparting of hydrophilicity may be performed by other treatment such as plasma irradiation or radiation irradiation.

  Alternatively, the hydrophilic surface 11c may be formed by coating the film substrate 11 with nanoparticles such as titanium oxide. Titanium oxide becomes hydrophilic by the ultraviolet rays of sunlight. Alternatively, the hydrophilic surface 11c can be formed by coating the film substrate 11 with a surfactant.

  Next, the operation of the present embodiment having such a configuration will be described.

  The sun changes in the east-west direction during the day.

  As shown in FIGS. 3 and 4 (a) (b) (c) (d), sunlight L enters the agricultural solar control film 10 installed in the house 20. FIG. At this time, the sun is low in the morning and evening, and the sun is high in the daytime.

  According to the present embodiment, the agricultural solar control film 10 is composed of the film base material 11, and regular square-cone-shaped multi-unit prisms 12 are arranged in a grid pattern on the emission surface 11 b of the film base material 11. Therefore, the unit prism 12 can refract the sunlight L and efficiently guide it into the house 20.

  3 is a schematic perspective view showing the house 20, FIGS. 4 (a) and 4 (b) are views of the inside of the house 20 from different directions, and FIG. 4 (c) is a solar control film for agriculture in the morning. FIG. 4D is a diagram showing sunlight L passing through the unit prisms 12 of the agricultural solar control film 10 in the evening.

  As shown in FIGS. 3 and 4 (a) (b) (c) (d), the sun is at a low position in the morning and evening. At this time, the sunlight L incident obliquely on the agricultural solar control film 10 from a low position passes through each unit prism 12 and is refracted in the vertical direction and emitted into the house 20 (FIG. 4A). (C) (d)).

  In this way, the sunlight L is refracted in the vertical direction by each unit prism 12 and then emitted into the house 20. For this reason, sunlight L can fully reach between the plants 21, and can effectively guide light to almost the entire plant 21 in the house 20.

  In the daytime, the sun is relatively high. At this time, the sunlight L incident on the agricultural sunlight control film 10 from a high position is refracted in the vertical direction by the unit prism 12 and is emitted into the house 20 (FIG. 4D).

  For this reason, in the daytime, the sunlight L emitted into the house 20 reaches the lower part of the plant 21 sufficiently.

  As shown in FIGS. 4C and 4D, since the altitude of the sun changes symmetrically in the morning and evening, the sectional shape of the unit prism 12 along the east-west direction is the height direction with respect to the lateral length 10. It is an isosceles triangle with a length of 5, and is a symmetrical shape.

  On the other hand, the height of the sun changes in the north-south direction between winter and summer.

  As shown in FIGS. 5A and 5B and FIGS. 6A and 6B, sunlight L is incident on the agricultural solar control film 10 installed in the house 20. At this time, the altitude of the sun is low in winter and the altitude of the sun is high in summer.

  The agricultural solar control film 10 is composed of a film base 11, and regular square-cone-shaped multi-unit prisms 12 are arranged in a lattice pattern on the output surface 11 b of the film base 11. The light L can be refracted and efficiently guided into the house 20.

  Here, FIG. 5A is a diagram showing sunlight L passing through the agricultural solar control film 10 in winter, and FIG. 5B is an enlarged view of the unit prism at that time. FIG. 6A is a diagram showing sunlight L passing through the agricultural solar control film 10 in the summer, and FIG. 6B is an enlarged view of the unit prism at that time.

  As shown in FIGS. 5 (a) and 5 (b), the sun is in a low position in winter. At this time, sunlight L incident obliquely on the agricultural sunlight control film 10 from a low position passes through each unit prism 12 (long surface thereof) and is refracted in the vertical direction and emitted into the house 20. (FIGS. 5A and 5B).

  In this way, the sunlight L is refracted in the vertical direction by each unit prism 12 and then emitted into the house 20. For this reason, sunlight L can reach | attain between plants 21 enough, and can guide light to the substantially whole plant 21 in the house 20 effectively.

  In the summer, the sun is relatively high. At this time, the sunlight L incident on the agricultural sunlight control film 10 from a high position is refracted in the vertical direction by the unit prism 12 and emitted into the house 20 (FIGS. 6A and 6B). )). For this reason, in the summer, the sunlight L emitted into the house 20 reaches the lower part of the plant 21 sufficiently.

  As shown in FIGS. 5A and 5B and FIGS. 6A and 6B, since the altitude of the sun changes asymmetrically in summer and winter, the cross-sectional shape of the unit prism 12 along the north-south direction is The length in the height direction is 5 with respect to the length 10 in the horizontal direction, and the length in the horizontal direction is divided into 8: 2 by the perpendicular line dropped from the apex, which is asymmetrical to the left and right. When the sunlight control film 10 is arranged at an inclination angle of 23 ° with respect to the horizontal plane, the angle of the acute angle portion 12A of the unit prism 12 is set to 23 °, so that the long side (long surface) of the unit prism 12 and the ground Is about 45 °. Therefore, when it is desired to bend the sunlight by 45 °, the refraction of the light passing through the unit prism 12 is not concerned, and the design becomes easy.

  Moreover, as for the sunlight control film 10 for agriculture, the output surface 11b is the hydrophilic surface 11c. Therefore, the water condensed and adhering to the emission surface 11b (hydrophilic surface 11c) is not a droplet but a thin film. The agricultural solar control film 10 is installed in the house 20 with an inclination, and a thin water film flows along the inclination to the side wall surface of the house 20 and falls to the ground along the side wall surface of the house 20. To do. Therefore, it is possible to prevent water droplets from falling into the house 20 and being attached to the crop.

  (Modification of First Embodiment) Next, a modification of the first embodiment will be described with reference to FIGS.

  Fig.8 (a) is a top view which shows the solar control film 10 for agriculture by a modification, FIG.8 (b) is X-ray direction sectional drawing of Fig.8 (a), FIG.8 (c) is a unit. FIG. 8D is a perspective view showing the prism 12, and FIG. 8D is a sectional view in the Y-line direction of FIG. 8A.

  In the first embodiment, the unit prism 12 has a square cone shape. However, as shown in FIGS. 8A, 8B, and 8C, the unit prism 12 has a truncated square cone shape and has a top surface 12a. You may make it a shape. The side surface and the top surface 12a of the unit prism 12 are hydrophilic surfaces 11c.

  Thus, by making the unit prism 12 into a truncated square cone shape, water condensed and adhering to the emission surface 11b (hydrophilic surface 11c) becomes more difficult to form droplets, and the water droplets fall into the house 20. In this way, it is possible to more effectively prevent water droplets from forming on the crop.

  Next, another modification of the first embodiment will be described with reference to FIGS. 9A, 9B, 9C, and 9D. This is the structure which provided the strip | belt-shaped drainage groove | channel 15 further to the agricultural solar control film 10 shown to Fig.8 (a) (b) (c) (d).

  9A is a plan view showing the agricultural solar control film 10, FIG. 9B is a sectional view in the X-ray direction of FIG. 9A, and FIG. 9C is a unit prism. 12 is a perspective view showing FIG. 12, and FIG. 9 (d) is a cross-sectional view in the Y-line direction of FIG. 9 (a).

  As shown in FIGS. 9A and 9D, the drain groove 15 corresponds to a region where the unit prism 12 is not formed. When the water film on the unit prism 12 around the drainage groove 15 reaches the drainage groove 15, the water film flows along the drainage groove 15 to the side wall surface of the house 20. By providing such drainage grooves 15, water condensed and adhering to the emission surface 11 b (hydrophilic surface 11 c) can be quickly discharged from the agricultural solar control film 10.

  Note that the surface of the drain groove 15 is less hydrophilic than the hydrophilic surface 11c and may be hydrophobic. By making the surface of the drainage groove 15 hydrophobic, water can flow quickly.

  (Second Embodiment) Next, an agricultural solar control film according to a second embodiment will be described with reference to FIGS. 10 (a), 10 (b) and 10 (c). In the second embodiment shown in FIGS. 10A, 10B, and 10C, the same parts as those in the first embodiment shown in FIG.

  As shown in FIGS. 10A, 10 </ b> B, and 10 </ b> C, the agricultural solar control film 10 includes a film base 11 having an entrance surface 11 a and an exit surface 11 b, and the exit surface 11 b of the film base 11. Further, a convex portion composed of a large number of elongated prisms 32 is provided. The elongated prism 32 has a polygonal column shape, for example, a triangular column shape, and extends in one direction. Further, the emission surface 11b is a hydrophilic surface 11c having hydrophilicity.

  Here, FIG. 10 (a) is a rear view showing the agricultural solar control film 10, FIG. 10 (b) is a cross-sectional view in the X-ray direction of FIG. 10 (a), and FIG. 10 (c) is an elongated shape. It is a figure which shows the prism 32. FIG.

  For example, in the film substrate 11, the apex angle of the elongated prism 32 is 90 °, and the inclination angle of the long side of the elongated prism 32 is 23 °. Further, the height from the incident surface 11a to the valley portion of the elongated prism 32 in the film base 11 is 100 μm, and the arrangement pitch of the elongated prisms 32 is 200 μm.

  As shown in FIGS. 10A, 10B, and 10C, when the elongated prism 32 is provided on the exit surface 11b of the film substrate 11, molding is performed compared to the case where the unit prism 12 is provided on the film substrate 11. It becomes easy.

  Sunlight entering the incident surface 11a of the film substrate 11 is refracted by the elongated prism 32 and emitted from the emission surface 11b. For example, the elongated prism 32 can refract sunlight that changes in altitude between summer and winter and guide it into the house 20. Further, by changing the installation direction of the agricultural solar control film 10, the elongated prism 32 can refract the sunlight whose altitude changes during a day and guide it into the house 20.

  As shown to Fig.10 (a) (b) (c), as for the sunlight control film 10 for agriculture, the output surface 11b is the hydrophilic surface 11c. Therefore, the water condensed and adhering to the emission surface 11b (hydrophilic surface 11c) is not a droplet but a thin film. The agricultural solar control film 10 is installed in the house 20 with an inclination, and a thin water film flows along the inclination to the side wall surface of the house 20 and falls to the ground along the side wall surface of the house 20. To do. Therefore, it is possible to prevent water droplets from falling into the house 20 and being attached to the crop.

  (Modification of Second Embodiment) Next, a modification of the second embodiment will be described with reference to FIGS.

  The agricultural solar control film 10 shown in FIGS. 11 (a), 11 (b), and 11 (c) is provided with a drainage groove 35 on the agricultural solar control film 10 according to the second embodiment shown in FIG. It is configured.

  Here, FIG. 11 (a) is a plan view showing the agricultural solar control film 10, FIG. 11 (b) is a cross-sectional view in the X-ray direction of FIG. 11 (a), and FIG. 11 (c) is FIG. It is Y line direction sectional drawing of (a).

  The drain groove 35 corresponds to a region where the elongated prism 32 is not formed. In the example shown in FIGS. 11A, 11B, and 11C, the portion between the elongated prisms 32 adjacent in the Y-line direction becomes the drainage groove 35, and the drainage groove 35 is the drainage groove 35 of FIG. It extends in the X-ray direction.

  When the water film on the elongated prism 32 around the drainage groove 35 reaches the drainage groove 35, the water film flows along the drainage groove 35 to the side wall surface of the house 20. By providing such drainage grooves 35, water condensed and adhering to the emission surface 11b (hydrophilic surface 11c) can be quickly discharged from the agricultural solar control film 10.

  The surface of the drainage groove 35 may have water repellency. By making the surface of the drainage groove 35 water-repellent, water quickly flows to the side wall surface of the house 20.

  In the agricultural solar control film 10 shown in FIGS. 11 (a), 11 (b), and 11 (c), the direction in which the elongated prism 32 extends and the direction in which the drainage groove 35 extends are orthogonal, but FIG. 12 (a). (B) As shown in (c), it does not need to go straight.

  Here, FIG. 12 (a) is a plan view showing the agricultural solar control film 10, FIG. 12 (b) is a cross-sectional view in the X-ray direction of FIG. 12 (a), and FIG. 12 (c) is FIG. It is Y line direction sectional drawing of (a).

  Next, another modification of the second embodiment will be described with reference to FIGS. In the second embodiment, the entire exit surface 11b is the hydrophilic surface 11c. However, as shown in FIGS. 13A and 13B, a part of the exit surface 11b is a non-hydrophilic surface 11d. Also good. The non-hydrophilic surface 11d is obtained by not performing a hydrophilic treatment on a part of the emission surface 11b.

  Here, FIG. 13A is a plan view showing the agricultural solar control film 10, and FIG. 13B is a cross-sectional view in the X-ray direction of FIG. 13A.

  In the non-hydrophilic surface 11d, compared with the hydrophilic surface 11c, the condensed / attached water tends to be droplets. Therefore, when the water film on the hydrophilic surface 11c reaches the non-hydrophilic surface 11d, it falls into the house 20 as water droplets. It is preferable to arrange the agricultural solar control film 10 so that the non-hydrophilic surface 11d is positioned above a place where the crop is not planted. In this way, by intentionally creating a location where water droplets are likely to occur and adjusting the location where the water droplets are dropped, it is possible to prevent water droplets from forming on the crop.

  In the example shown in FIGS. 13A and 13B, the non-hydrophilic surface 11d is provided in a strip shape along each of the X-ray direction and the Y-line direction in FIG. 13A. As shown in (b), the predetermined narrow region may be a non-hydrophilic surface 11d.

  14A is a plan view showing the agricultural solar control film 10, and FIG. 14B is a cross-sectional view in the X-ray direction of FIG. 14A.

  It is preferable to arrange the agricultural solar control film 10 so that the non-hydrophilic surface 11d as shown in FIGS. 14 (a) and 14 (b) is located in the vicinity of the pillar or pipe of the house 20. This is because the crop is not planted in the vicinity of the pillars and pipes of the house 20, and water drops falling from the non-hydrophilic surface 11d can be prevented from attaching to the crop.

  Next, another modification of the second embodiment will be described with reference to FIGS. In the second embodiment, the entire side surface of the elongated prism 32 is the hydrophilic surface 11c. However, as shown in FIGS. 15A and 15B, only the top of the elongated prism 32 is the hydrophilic surface. 11c may be used.

  Here, FIG. 15 (a) is a plan view showing the agricultural solar control film 10, and FIG. 15 (b) is a cross-sectional view in the X-ray direction of FIG. 15 (a).

  The top portion of the elongated prism 32 is a portion where water droplets are likely to be generated. Even if only the top portion has a hydrophilic surface 11c, it is possible to prevent water droplets from falling into the house 20 and forming water droplets on the crop. .

  Moreover, in the agricultural solar control film 10 shown in FIGS. 10 to 15, the elongated prism 32 may have a triangular prism shape having a flat top surface.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 Agricultural sunlight control film 11 Film base material 11a Incident surface 11b Output surface 11c Hydrophilic surface 12 Unit prism 12a Top surface 15 Drain groove 20 House 32 Elongated prism 35 Drain groove

Claims (14)

In agricultural solar control film,
Comprising a film substrate having an entrance surface and an exit surface;
A plurality of convex portions and a flat drainage groove where the convex portions are not formed are provided on the exit surface of the film base,
An agricultural solar control film having a hydrophobic surface on the drainage channel.   The agricultural solar control film according to claim 1, wherein each convex portion is a unit prism made of a polyhedron.   The agricultural solar control film according to claim 2, wherein each unit prism is a truncated quadrangular unit prism.   The agricultural solar control film according to claim 1, wherein each convex portion is formed of an elongated prism having a polygonal column shape. The agricultural solar control film according to any one of claims 1 to 4 , wherein the drainage groove is provided in a band shape from one end of the film to the other opposite end. The agricultural solar control film according to any one of claims 1 to 5 , wherein the drainage grooves are provided separately at a plurality of locations.   The agricultural solar control film according to claim 4, wherein the drainage groove is provided so as to divide the elongated prism. In agricultural solar control film,
Comprising a film substrate having an entrance surface and an exit surface;
A plurality of convex portions are provided on the exit surface of the film base,
A part of the plurality of convex portions is an agricultural solar control film, which is a convex portion having a non-hydrophilic surface formed on at least a part of the surface. The agricultural solar control film according to claim 8, wherein each convex portion is composed of a unit prism made of a polyhedron. The agricultural solar control film according to claim 9, wherein each unit prism is a truncated quadrangular unit prism. The agricultural solar control film according to claim 8, wherein each convex portion is formed of a polygonal columnar elongated prism. The agricultural solar control film according to any one of claims 8 to 11 , wherein the non-hydrophilic surface is provided in a band shape from one end side of the film to the other opposite end side. The agricultural solar control film according to any one of claims 8 to 12 , wherein one or more non-hydrophilic surfaces are provided apart from each other . The agricultural solar control film according to claim 11, wherein the non-hydrophilic surface is provided so as to divide the elongated prism.

Images