Contamination Prevention
Sealed containers used for transporting fabric samples protect them from environmental moisture and airborne chemical contamination. This speciman gas-tight packaging ensures that volatile finishes like formaldehyde do not escape before laboratory testing. If samples are not packed securely, they can lose moisture or absorb chemicals from neighboring materials.
Choosing appropriate packaging materials keeps the sample in its original state.
Shipment Protection
Plastic bags with barrier layers are designed to prevent the diffusion of gas molecules through the package wall. During sample collection, utilizing speciman gas-tight packaging protects the sample from absorbing airborne formaldehyde present in warehouses or shipping containers. This barrier keeps the sample pristine and ensures that the laboratory test results are representative of the true fabric state.
Materials such as polyethylene or laminated foil are used for these bags. These high-barrier films are heat-sealed on all sides immediately after sampling to create an airtight seal that holds the gas molecules inside.
Volatilization Control
Evaporative loss of volatile compounds can occur rapidly if fabric specimens are left exposed to the open air. By implementing speciman gas-tight packaging, the concentration of volatile substances remains stable until the bag is opened in the lab. This prevents under-reporting of chemical residues, which could lead to unsafe garments being released to the market.
The packaging is sealed immediately after the sample is cut.
Quality Assurance
Quality protocols require that the integrity of the sample bag is checked at the laboratory before testing begins. The application of speciman gas-tight packaging is verified by checking for tears, punctures, and leaks in the heat-seal. If a package is compromised, the sample must be rejected and a new specimen requested from the mill.
This strict procedure maintains the accuracy of the compliance audits.
