Title:
COVER-SOIL FILM FOR AGRICULTURAL GARDENING AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/054477
Kind Code:
A1
Abstract:
Provided is a covering film for agricultural gardening, the covering film reflecting visible light from sunlight, etc., more efficiently than in the past, supplying light that is necessary to plant growth to plants, absorbing infrared light, heating soil, and not raising the air temperature of the atmosphere within a greenhouse, etc. The present invention provides a covering film for agricultural gardening, the covering film being characterized by having a white-light-reflecting layer that contains a white-light-reflective material, and an infrared-light-absorbing layer that contains infrared-light-absorptive-material microparticles, and moreover being characterized in that: the infrared-light-absorptive-material microparticles are composite tungsten oxide microparticles; when the contained crystals have a hexagonal crystal system, the a-axis and c-axis values of the lattice constant thereof are such that the a-axis is 7.3850-7.4186 Å and the c-axis is 7.5600-7.6240 Å; and the average particle diameter of the microparticles is 100 nm or less.
Inventors:
TSUNEMATSU HIROFUMI (JP)
CHONAN TAKESHI (JP)
CHONAN TAKESHI (JP)
Application Number:
PCT/JP2018/034173
Publication Date:
March 21, 2019
Filing Date:
September 14, 2018
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
A01G13/00; A01G13/02; B32B7/02
Domestic Patent References:
| WO2006100799A1 | 2006-09-28 | |||
| WO2017094909A1 | 2017-06-08 |
Foreign References:
| JP2015199668A | 2015-11-12 | |||
| JP2013173642A | 2013-09-05 | |||
| JP2011050307A | 2011-03-17 |
Attorney, Agent or Firm:
ANIYA Setuo et al. (JP)
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