Binding Material
Strong synthetic cordage made from thermoplastic polymers provides a secure method for bundling yarn cones and fabric rolls for transport within a mill or to an external customer. Polypropylene twine is a common utility item in the textile industry due to its high tensile strength and low cost. This material is resistant to water and many chemicals, which makes it ideal for use in the humid and often oily environment of a spinning mill.
The application of this twine is found in the packaging and logistics departments where goods are prepared for shipment. A reliable binding is necessary to prevent the shifting of loads and the damage of products during transit.
Tensile Strength
Performance of the cordage depends on the manufacturing process where the polymer is extruded and twisted into a finished strand. Polypropylene twine must be strong enough to hold heavy bundles of yarn without breaking or stretching over time. The thickness and the number of plies in the twine are chosen based on the weight of the items being secured.
If the twine is too weak, the bundles may fall apart, leading to tangled yarn and wasted material. If it is too coarse, it may cut into the surface of the fabric or leave marks on the yarn cones. Operators use a simple knot to secure the twine, and the material must hold the knot firmly without slipping.
The resistance of the polymer to rot and mildew ensures that the bundles remain secure even during long sea voyages in damp conditions. Unlike natural fiber twines, the synthetic version does not shed lint or fibers that could contaminate the textile products. This cleanliness is a major advantage for mills that produce high quality white or dyed yarns.
The twine is usually supplied on large spools that can be easily loaded into automatic bundling machines. Maintenance of these machines includes regular checks of the cutting blades to ensure a clean break of the twine after each bundle is tied.
Chemical Resistance
Stability of the binding material is tested when it comes into contact with the various oils and dyes used in the textile mill. Polypropylene twine does not react with most industrial chemicals, which prevents it from staining the fabric or the yarn it is holding. This property allows it to be used in the dyeing and finishing departments where other materials might fail.
The twine remains strong even when exposed to the high temperatures found in some areas of the factory.
Recycling Profile
Management of the waste generated by the use of synthetic cordage is an important part of the mill’s environmental strategy. Polypropylene twine is a recyclable plastic, and many facilities collect the cut ends and used pieces for reprocessing. Some suppliers offer twine made from recycled polymers, which reduces the reliance on virgin materials.
The durability of the twine also means that it can sometimes be reused for internal transport before being discarded. Proper disposal and recycling support the sustainability goals of the modern textile industry and help to reduce the amount of waste sent to landfills. Choosing the right twine contributes to the efficiency and the cleanliness of the entire packaging process.
