Netting, crop cover, and ground cover materials
AssigneeNine IP Limited
InventorsJonathan Dallas Toye, Suzanne Elizabeth Foy
Life of this patent
Estimating the term…
Abstract
The invention relates to crop netting materials, crop cover materials, and ground cover materials for agricultural applications, which is knitted, woven or non-woven, from a synthetic monofilament, multifilament yarn, or tape or combination thereof, formed from a resin comprising at least one pigment such that the monofilament, multifilament yarn, or tape, transmit solar radiation in the visible wavelength range of about 420 to 720 nm at a level similar to the level that the materials transmit solar radiation in the infra-red wavelength ranges of about 700 to about 1000 nm and 1500 to about 1600 nm. The materials also absorb solar radiation in the UV wavelength range of about 300 to about 380 nm.
Claims22
A crop netting material which is knitted, woven, or non-woven, from a synthetic monofilament, multifilament yarn, or tape or combination thereof, formed from a resin comprising at least one pigment such that the monofilament, multifilament yarn, or tape:
- across a UV wavelength range about 300 to about 380 nm:
- absorbs at least about 55% solar radiation on average, and
- transmits less than about 30% solar radiation on average;
- across a visible wavelength range about 420 to about 700 nm:
- transmits at least about 10% solar radiation on average, and
- reflects at least about 10% of solar radiation on average;
- across an infrared wavelength range about 700 to about 1000 nm:
- transmits between about 15% and about 80% of solar radiation on average;
- across an infrared wavelength range of 1500 to 1600 nm:
- transmits at least about 15% to about 90% solar radiation on average;
- and
- across an infrared wavelength range about 700 to about 1000 nm:
- transmits not more than about 9 percentage points on average more than, and
- transmits not less than about 9 percentage points on average less than,
- the solar radiation transmission across said visible wavelength range about 420 to about 700 nm;
- and
- across an infrared wavelength range about 1500 to about 1600 nm:
- transmits not more than about 9 percentage points on average more than, and
- transmits not less than about 9 percentage points on average less than,
- the solar radiation transmission across said infrared wavelength range about 700 to about 1000 nm;
- wherein the netting material has a cover factor of less than 80%;
- wherein said pigment comprises titanium dioxide having an average particle size greater than 0.5 μm;
- and
- wherein said titanium dioxide comprises titanium dioxide coated with a coating comprising silica, alumina, or a combination thereof.
A crop cover comprising:
- a crop netting having a cover factor of less than 80%, the crop netting including:
- a synthetic monofilament, multifilament yarn, or tape or combination thereof, formed from a resin comprising at least one pigment such that the monofilament, multifilament yarn, or tape in which the cover factor, as defined by overall area of the netting material which comprises knitted, woven, or non-woven monofilament, yarn, or tape or a combination, forming the netting itself as ratio to the air space in between the netting material:
- across a UV wavelength range about 300 to about 380 nm:
- absorbs at least about 55% solar radiation on average, and
- transmits less than about 30% solar radiation on average;
- across a visible wavelength range about 420 to about 700 nm:
- transmits at least about 10% solar radiation on average, and
- reflects at least about 10% of solar radiation on average;
- across an infrared wavelength range about 700 to about 1000 nm:
- transmits between about 15% and about 80% of solar radiation on average;
- across an infrared wavelength range of 1500 to 1600 nm:
- transmits at least about 15% to about 90% solar radiation on average;
- and
- across an infrared wavelength range about 700 to about 1000 nm:
- transmits not more than about 9 percentage points on average more than, and
- transmits not less than about 9 percentage points on average less than,
- the solar radiation transmission across said visible wavelength range about 420 to about 700 nm;
- and
- across an infrared wavelength range about 1500 to about 1600 nm:
- transmits not more than about 9 percentage points on average more than, and
- transmits not less than about 9 percentage points on average less than,
- the solar radiation transmission across said infrared wavelength range about 700 to about 1000 nm;
- wherein said pigment comprises titanium dioxide having an average particle size greater than 0.5 μm;
- and
- wherein said titanium dioxide comprises titanium dioxide coated with a coating comprising silica, alumina, or a combination thereof.
Dependencies are inferred from the claim text.