DNP Launches Second Round of Agri Film

Film for inter-row use in greenhouse cultivation

Dai Nippon Printing Co., Ltd. (DNP) has developed an agri film to promote the growth of crops by laying a sheet with superior reflective, water permeable and antifouling properties between rows when cultivating garden products in greenhouses. In addition to the previously developed film for fruit and vegetable cultivation purposes, this new agri film will be launched in mid-April, 2015.

This newly developed film for greenhouse rows not only maintains light reflective features that promote photosynthesis, but has also been endowed with superior water permeable features and helps prevent the water puddle. In addition, as this new film exhibits stronger antifouling properties compared with general weed-proof sheets, it is possible to maintain the reflective functions over a longer period.

[Developmental Background]

In protected horticulture, such as greenhouse culture, as fruit and vegetables grow it becomes more difficult for sunlight to touch the lower portion of the crop. As a result, there have been demands for methods to offset insufficient light and promote photosynthesis for fruit and vegetables. In order to supplement existing light and restrain weeds, many operators lay down commercially available weed-proof sheets between the rows. In cases such as these, not only is it difficult to remove the fouling that attaches itself to the sheet, but water also puddles, which presents a challenge as it becomes a hotbed of bacteria. In order to overcome these challenges, DNP has developed an agri film with boosted water permeable properties, along with highly light reflective, and antifouling features as a sheet for laying between greenhouse rows.

[Newly Developed Agri Film]

  • The DNP agri film is a highly reflective film capable of reflecting 95% of visible light. In photosynthetic photon evaluation designed to test photosynthesis in plastic greenhouses, it was revealed that reflective properties were boosted in excess of 40% compared to general weed-proof sheeting. Using the newly developed film helps to offset insufficient light in open culture, protected horticulture and vegetable factories, promoting efficient light synthesis. The film is also highly effective in promoting coloration in mangos for example, and prevents uneven coloring.
  • The newly developed film also contains micro-fractures that boost water permeability.
  • As the new film has high anti-fouling properties, fouling has been restrained compared to existing weed-proof sheeting, and it is possible to maintain the reflective functions over a longer period.
  • The new film also cuts out light generated heat, and restrains rises in soil temperature.

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Verification tests (tomato and strawberry)

[Looking Ahead]

DNP will market the newly developed agri film, along with the previously developed film for cultivating garden products, to protected horticulture and vegetable factory operators both in Japan and overseas, aiming for sales of 2.0 billion yen in FY 2015.


* Product prices, specification and service contents mentioned in this news release are current as of the date of publication. They may be changed at any time without notice.