Dongguan Kangchuang Paper (picture)-Where to buy sulfur-free packaging paper-Sulfur-free packaging paper

Sulfur-free wrapping paper

Sulfur-free paper has a variety of applications in PCB production, including isolation materials, soldering masks, absorbent materials, and test carriers. Its use helps ensure the quality and reliability of PCBs and provides protection and support. Therefore, it is very important to correctly select and use sulfur-free paper in the PCB production process.
Sulfur-free paper is a special kind of paper that is made from fiber raw materials that do not contain sulfur.
Normally, sulfur-containing chemicals (such as sulfuric acid) may be used in the manufacturing process of ordinary paper for bleaching and whitening treatments, which can reduce the cost of the paper. However, because sulfur-containing substances may cause contamination and corrosion in some products, sulfur-free paper needs to be produced to meet specific needs.

Photovoltaic cell sulfur-free paper is one of the important materials used in photovoltaic cell manufacturing. It is used to cover the front and back electrodes of the cell to protect the structure and performance of the photovoltaic cell. Specifications are usually based on specific battery size and manufacturing requirements. The following are the general specifications and features of sulfur-free paper for photovoltaic cells:
Thickness: Usually between tens to hundreds of microns, depending on the design and requirements of the photovoltaic cell.
Width and length: Customized according to the size and manufacturing process of photovoltaic cells, sulfur-free paper of different widths and lengths can generally be provided.
Sulfur-free paper is a special paper that contains no sulfur during the manufacturing and packaging process. The following are the main features of sulfur-free paper:
Sulfur Compound-Free: Sulfur-free paper contains no sulfur and therefore does not release sulfides or other sulfur compounds. This is because sulfides may cause oxidation or corrosion to certain items (such as copper, silver, etc.).
High Purity: Sulfur-free paper generally has a higher purity because sulfur is often present as an impurity in paper. By removing sulfur, sulfur-free paper can provide higher purity and quality, making it suitable for applications where paper purity is critical.