Intercellular Binder
Complex carbohydrate molecules act as the natural glue that secures flax fiber bundles to the woody core of the plant stem. During the process of retting, bacteria break down these pectins to allow for easy mechanical separation of the fiber. Residual amounts of this material remain in the fiber to maintain bundle integrity and provide the characteristic stiffness associated with high grade linen.
Too much residual glue makes the fiber brittle while too little causes the bundles to disintegrate prematurely.
Chemical Transition
The removal of redundant pectins continues throughout the scouring and bleaching stages inside the Chinese mills. Alkaline solutions at high temperatures degrade these polysaccharides and wash them away to leave the cellulose strands clean and ready for dyeing. Monitoring the degree of remaining material ensures that the fiber retains enough structural memory to endure high speed spinning.
If pectins are removed too aggressively, the cloth feels limp and loses its distinct aesthetic texture.
Biological Stability
Proper control over the breakdown of pectins determines the success of long term storage for scutched flax. If the material stays damp, remaining enzymes continue to eat the glue and weaken the overall batch. Correct drying stops this natural degradation and fixes the fiber quality at its commercial peak.
