Regain Allowance

Fiber Properties

Natural fibers naturally absorb more atmospheric moisture than synthetic ones do. The regain allowance is higher for cotton or wool than for polyester or nylon. These differences correspond directly to the chemical structure and the moisture absorption capacity of each polymer.

Billing Standard

Invoicing is calculated by adding the moisture percentage to the dry mass of the fiber. Using the regain allowance prevents disputes over weight variations caused by damp storage conditions. It is the standard metric used in trading.

Transaction Integrity

Verifying the actual dry weight and then applying the official rate prevents financial losses during shipping and customs clearance. Because textile shipments can absorb or lose water depending on the weather, the regain allowance ensures that the invoiced weight is always based on the dry fiber content plus the agreed percentage. This standard protects the interests of both the mill and the fiber supplier in high-value transactions.