Sulfur-free paper manufacturers do not tell the role of sulfur-free paper.

Sulfur-free paper manufacturer Sulfur-free paper is also called PCB. It is a special paper used for surface treatment process. Its function is to prevent the silver in the electroplating product from chemically reacting with the sulfur in the air, thereby turning the product yellow. Therefore, sulfur-free paper should be used as soon as possible after the product is completed. When touching paper packaging products and sulfur-free gloves, do not touch the plated surface.

Sulfur-free paper manufacturer introduces the use of sulfur-free paper: mainly used for the packaging of silver-plated products, such as circuit boards, circuit boards, hardware, and food protection products.

Storage precautions: Store in a dry and clean warehouse at 18°C ~ 25°C, lay it flat, avoid direct sunlight, stay away from fire and water, pay attention to prevent high temperature, pay attention to moisture, and avoid contact with liquids.

The main body of sulfur-free paper is copper, and the copper layer easily reacts with oxygen in the air to produce dark brown cuprous oxide. In order to avoid oxidation, PCB has a silver immersion process in the manufacturing process of sulfur-free paper manufacturer , so PCB is also commonly called a silver immersion board.

Dust-free printing paper manufacturer tells you that there is a great affinity between silver and sulfur. When silver encounters hydrogen sulfide gas or sulfide ions in the air, it is easy to form a very insoluble silver salt. This chemical change can take place in very small amounts. At the same time, the sulfur-free paper manufacturers have formed a low-density immersion silver layer due to the very fast immersion speed of silver, so that the copper at the lower part of the silver layer is easy to contact with the air, so the thicker immersion silver layer needs to obtain oxidation resistance. This means that a thicker silver layer is deposited during production, which increases production costs and also increases the likelihood of solderability problems. Wear sulfur-free gloves when touching the dipped silver plate.
Sulfur-free paper manufacturer During handling and handling, the sunken silver plate must be separated from other objects without other paper. From the immersion silver line to the packaging, the immersion silver plate must be completed within 8 hours. Sulfur-free paper manufacturers use sulfur-free paper to separate the submerged silver plate from the packaging bag during the packaging process. pv isolation paper , pv glass isolation paper transportation should also pay attention.