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Cotton bale wrap film is a specialized polyethylene packaging material used with round module cotton pickers to wrap compressed cotton bales directly in the field. The film forms a protective layer around each cotton module, shielding harvested fiber from moisture, dust, and contamination during field storage, roadside staging, and transport to ginning facilities. Green color film provides high visual contrast against white cotton, assisting machine operators with wrap quality inspection during harvesting.
This film formulation is engineered for compatibility with John Deere CP7760, CP690, and CP770 series cotton harvesters, as well as models from China Railway Construction Heavy Industry, Bohiran, Woder, and Swan. Commercial procurement teams at cotton farms, cooperatives, and harvesting service providers select wrap film based on three primary factors: harvester compatibility, bale protection performance, and total cost per bale wrapped.
Parameter | Value | CP Series Compatibility Note |
Width | 106" (2.7m) | Exact fit for CP bales |
Thickness | 75micron | Matches CP feeder tolerances |
Roll Diameter | 10" (25cm) | Fits CP film holder assembly |
Roll Weight | 220lbs (100kgs) | 24 wraps per roll, aligns with CP output rate |
Operating Temperature | -59℉ to 104℉ | Suitable for CP operating regions |
Recycled Content | 30% | Supports eco-certification documentation |
Color | Forest Green | High contrast for miswrap visual detection |
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Mechanical Property | Longitudinal Direction | Horizontal Direction |
Tensile Strength | 26.2 MPa | 27.7 MPa |
Elongation at Break | 531% | 611% |
Impact resistance measures 1232g under standard dart drop test conditions. The film combines 30% post-industrial recycled polyethylene with 70% virgin polyethylene resin, maintaining mechanical performance levels comparable to 100% virgin film formulations.
The film incorporates a non-adhesive splice section with 3-inch additional width compared to standard agricultural films. This design supports automated peeling mechanisms at cotton gins, reducing processing downtime when modules enter the gin line. Film edges are slit to uniform width with consistent thickness variation, supporting smooth feeding through the harvester wrapping mechanism.
During harvesting operations, the CP series picker compresses cotton into round modules and applies wrap film on board the machine. Each roll of film wraps approximately 24 bales, matching the production rate of CP series harvesters and reducing roll change frequency during field operation. The green color allows operators to identify incomplete wraps or film misfeeds from the cab, enabling adjustments before bale ejection.
Wrapped cotton modules remain in field storage or roadside staging areas before transport to gins, with storage periods ranging from several weeks to multiple months depending on harvest scheduling and gin capacity. The film layer acts as a barrier against rainfall, morning dew, and wind-blown dust, helping preserve cotton grade during the period between harvesting and ginning.
Film rolls should be loaded into the harvester film holder following equipment manufacturer procedures. Operators should verify film alignment before resuming harvesting after each roll change to ensure proper wrapping tension. During transport and storage of unused rolls, keep film in original packaging, store horizontally on pallets, and avoid exposure to direct sunlight or temperatures exceeding the upper operating limit.
At gin facilities, wrapped modules enter the processing line where the non-adhesive splice design supports automated film removal systems. Used film can be collected separately for recycling programs where available.
This film is formulated for John Deere CP7760, CP690, and CP770 round module pickers. It also works with cotton harvesters from China Railway Construction Heavy Industry, Bohiran, Woder, and Swan that use 2.7m width wrap film. Users operating other models should confirm roll dimensions and feeder specifications before ordering.
Field storage duration varies by climate region and harvest schedule. The film provides moisture and dust protection for outdoor storage; actual storage periods depend on local humidity levels, rainfall frequency, and cotton moisture content at the time of wrapping. Farms in higher-humidity regions typically schedule gin delivery within shorter timeframes.
Standard production includes green and yellow color options, both commonly used in cotton producing regions. Custom colors are available for volume orders, with lead time and minimum order quantities confirmed during quotation. Color pigmentation does not affect the film's mechanical properties or cotton contact characteristics.
