DuPont Stain testing solution for Fiber identification
Pharma Desiccant providing DuPont Stain for Fibre Identification Stain No.4 as Testing Solution for pharma. As per the USP 670 DuPont Pharma Solutions, fibre fillers such as cotton, rayon and polyester coils, need to be passed through the identification tests like Dupont Fibre Identification Test (testing solution). As a result, different fibres give different colour variations, with the identification test.
Different fibres give different colour variation with DuPont Pharma Solutions
Colour changes like:
- Rayon Blue-Green
- Polyester-Pale Orange
Frequently Asked Questions ?
DuPont stain is a type of packaging stain that occurs when a desiccant, such as silica gel or molecular sieve, comes into contact with certain plastics used in packaging materials. This can cause discolouration or staining on the surface of the plastic, which can affect the visual appearance of the packaging.
DuPont stain can cause discolouration or staining on the surface of the plastic, which can affect the visual appearance of the packaging. This can make the packaging less appealing to customers and may affect the overall quality perception of the product.
To prevent DuPont stain, it is important to select the appropriate desiccant for the type of plastic used in the packaging. Additionally, using a barrier layer or protective coating between the desiccant and the plastic can help to prevent staining. Conducting compatibility testing before using a new packaging material can also help to identify any potential issues with staining.