Quantifying Structural Shear Resistance and Tear Strength Losses under Industrial Cross-Linking Routes
Industrial cross-linking locks flax yarn mobility, driving tear strength losses up to forty percent while restricting structural shear resistance.
Pad-Dry-Cure Stenter
Finishing Equipment
Industrial ranges that apply liquid treatments and then use heat to fix them onto the fabric are the workhorses of the textile finishing mill. The pad-dry-cure stenter consists of a trough for chemical immersion followed by a series of drying ovens and a high-temperature curing zone. It is used to apply everything from softeners to wrinkle-resistant resins on linen cloth.
The fabric is held by its edges on a chain to maintain its width and prevent shrinkage during the process.
Chemical Application
Immersion in the padding mangle ensures that the flax fibres are thoroughly saturated with the treatment solution. As the fabric passes through the pad-dry-cure stenter, the excess liquid is squeezed out by rollers to reach a specific wet pickup level. The subsequent drying stage removes the water, leaving the solid chemicals deposited on the fibre surfaces.
Curing then triggers the chemical reaction needed to bond these agents to the cellulose.
Thermal Fixation
Precise control of temperature and dwell time in the final chambers is required to ensure the finish is permanent and effective. If the pad-dry-cure stenter is too hot, the linen fibres can become yellowed or scorched. Conversely, insufficient heat will result in a finish that washes off after the first laundry cycle.
Modern machines use sensors to monitor the moisture content and fabric temperature at every stage of the run.