Fabrics containing a filler and methods of enhancing crop growth
AssigneeAVINTIV Specialty Materials Inc.
InventorsRobert Garcia Pano, Marie-Pierre Burckel
Life of this patent
Estimating the term…
Abstract
Fabrics suitable for a wide variety of uses, including coverage of crops, crop planting sites, or both, are disclosed. The fabrics may comprise at least one spunbond layer comprising filaments including a filler. The at least one spunbond layer may comprise a basis weight of least about 12 grams-per-meter-squared and the at least one spunbond layer may comprise an average transmittance value within the photosynthetic active radiation (PAR) across wavelengths 400 nm to 700 nm comprising about 37% or less. Methods of enhancing crop growth are also disclosed.
Claims19
A fabric, comprising:
- a spunbond layer comprising filaments including a filler;
- and
- the fabric comprises a basis weight of least about 12 grams-per-meter-squared(gsm);
- wherein (i) an average transmittance value within the photosynthetic active radiation (PAR) across wavelengths 400 nm to 700 nm of the spunbond layer comprises 37% or less, and (ii) an infrared radiation (IR)-transmittance value across wavelengths 7000 nm to 14000 nm of the fabric comprises from about 10% to about 70%.
A fabric, comprising:
- a spunbond layer comprising filaments comprising a blend of one or more polyolefin polymers and from about 0.1 wt % to about 20 wt % of at least one elastomer;
- wherein the filaments include a filler;
- and
- the fabric comprises a basis weight of least about 12 grams-per-meter-squared(gsm);
- wherein the average transmittance value within the photosynthetic active radiation (PAR) across wavelengths 400 nm to 700 nm of the spunbond layer comprises 37% or less, and wherein the at least one elastomer comprises a polypropylene-based elastomer comprising isotactic propylene repeat units and random ethylene units.
Dependencies are inferred from the claim text.