Can SMT wiping paper be customized in size?
SMT wiping paper (also known as stencil wiping paper or cleanroom roll paper) is a specialized cleaning consumable used in surface mount technology (SMT) processes in the electronics manufacturing industry. It is primarily used in fully automated solder paste printers, working with cleaning solvents to remove excess solder paste and red glue from the stencil and circuit boards, ensuring high-precision soldering quality.
Key points about SMT wiping paper:
1. Material and Characteristics
Golden Ratio: Typically made from a composite of natural wood pulp and polyester fiber through a hydroentangling process (e.g., a common 55% wood pulp and 45% polyester fiber).
Core Performance: Possesses extremely strong water and oil absorption, while being soft, lint-free (low dust generation), and has excellent anti-static (ESD) properties.
2. Main Functions
Cleaning the Stencil: After printing on the PCB, wipe away residual solder paste on the stencil to prevent clogging of the mesh and subsequent printing defects.
Preventing Printing Errors: Avoiding excess solder paste or red glue from contaminating components or causing short circuits greatly improves the yield rate of electronic products.
3. Appearance and Form: In actual production, it is mostly used in rolls loaded into the automatic cleaning system of the printing press. Specifications vary depending on the printing press brand (e.g., DEK, MPM, Panasonic, Fuji, etc.), with different core sizes, roll widths, and lengths.