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Films for agricultural greenhouses and agricultural greenhouses

A film and greenhouse technology, used in cellulose plastic material layered products, greenhouse cultivation, synthetic resin layered products, etc., can solve the problems of high temperature above 40 ° C, insufficient greenhouse insulation effect, etc., and achieve high productivity. Effect

Active Publication Date: 2021-10-19
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is known that agricultural products using transparent films made mainly of vinyl chloride, polyethylene, polyethylene-ethyl acetate copolymer, polyethylene terephthalate (PET), polyethylene-tetrafluoroethylene copolymer, etc. In greenhouses, when the sun shines in summer, etc., the temperature in the greenhouse sometimes becomes 40°C or higher due to the solar radiation heat generated by sunlight, and it is known that only the solar radiation heat generated by sunlight, etc. Insufficient insulation

Method used

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  • Films for agricultural greenhouses and agricultural greenhouses
  • Films for agricultural greenhouses and agricultural greenhouses
  • Films for agricultural greenhouses and agricultural greenhouses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144]

[0145] A curable composition was prepared by putting the following composition into a mixing tank and stirring to dissolve or disperse each component.

[0146]

[0147]

[0148]

[0149] The produced TAC substrate was unwound in a roll form, and the curable composition was applied to form a scattering layer.

[0150] Specifically, using the die coating method using a slit die described in Example 1 of Japanese Patent Application Laid-Open No. 2003-236451, the curable composition was applied under the condition of a conveying speed of 30 m / min and heated at 60° C. After drying for 150 seconds, an air-cooled metal halide lamp (manufactured by EYE GRAPHICS Co., Ltd.) with an oxygen concentration of about 0.1% and 160 W / cm was further irradiated with an illuminance of 400 mW / cm under nitrogen purge 2 , Irradiation 180mJ / cm 2 The ultraviolet rays are used to cure the coating layer to form a scattering layer (thickness: 9 μm), thereby producing a film for agricul...

Embodiment 2

[0152] Except having changed the thickness of the scattering layer into 6 micrometers, the film for agricultural greenhouses was produced by the method similar to Example 1.

Embodiment 3

[0154]

[0155] The composition described below was put into a mixing tank and stirred to dissolve each component, thereby preparing a composition for a low-refractive index layer. In addition, the following P-1 is the fluorinated copolymer P-3 (weight average molecular weight: 50000) described in Unexamined-Japanese-Patent No. 2004-045462.

[0156]

[0157]

[0158] Using the same method as in Example 2, after the coating layer was cured to form a scattering layer (thickness: 6 μm), the composition for the low refractive index layer was coated by the same method as the method for forming the scattering layer in Example 1, and This was cured to form a low-refractive-index layer (thickness: 80 nm), thereby producing a film for agricultural greenhouses.

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PUM

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Abstract

The technical problem to be solved by the present invention is to provide an agricultural greenhouse film capable of achieving high productivity and an agricultural greenhouse using the agricultural greenhouse film. The film for agricultural greenhouses of the present invention is a film for agricultural greenhouses that has a base material and a scattering layer provided on the base material, wherein the base material contains cellulose acylate resin, and the light is incident on the scattering layer side of the film for agricultural greenhouses. When the surface of the agricultural greenhouse film is used on the substrate side, the outgoing light includes scattered light at 8 to 30 degrees, the haze value is above 60%, and the moisture permeability is 500g / m 2 · More than 24 hours.

Description

technical field [0001] The invention relates to a film for agricultural greenhouses and agricultural greenhouses. Background technique [0002] It is known that agricultural products using transparent films made mainly of vinyl chloride, polyethylene, polyethylene-ethyl acetate copolymer, polyethylene terephthalate (PET), polyethylene-tetrafluoroethylene copolymer, etc. In greenhouses, when the sun shines in summer, etc., the temperature in the greenhouse sometimes becomes 40°C or higher due to the solar radiation heat generated by sunlight, and it is known that only the solar radiation heat generated by sunlight, etc. Insufficient insulation effect. [0003] For such transparent films used in agricultural greenhouses, Patent Documents 1 to 3 describe the use of cellulose acylate resin and a moisture permeability of 600 g / m 2 · More than 24h film. [0004] Previous technical literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/14A01G9/24A01G13/02B32B23/04B32B27/20
CPCA01G9/14A01G9/24A01G13/02B32B23/04B32B27/20Y02A40/25
Inventor 国安谕司鹫谷公人米本隆
Owner FUJIFILM CORP