Qishi anti-static sulfur-free paper manufacturer online consultation

Sulfur-free paper is used by circuit board manufacturers as a special backing paper for the PCB silvering process to prevent the chemical reaction between silver and sulfur in the air. Its function is to chemically precipitate silver to prevent the chemical reaction between silver and sulfur in the air, which may cause Yellow. Does not contain sulfur, which can avoid adverse effects caused by the reaction between sulfur and silver.

A large supply of sulfur-free, chlorine-free, and sodium-free special paper with neutral pH value, and relevant inspection reports can be provided.

Usage: Mainly used in silver-plated product packaging, such as circuit boards, circuit boards, hardware terminals, food protection products

0.07mm thick sulfur-free paper is 60g per square meter

It does not contain sulfur and can protect the product from external factors.

It can also reduce friction between products and damage the product

The function of sulfur-free paper is to prevent the silver in the electroplated finished product from chemically reacting with the sulfur in the air, causing the product to turn yellow. Therefore, when the product is completed, the product should be packaged in sulfur-free paper as soon as possible, and sulfur-free anti-static wear should be worn when in contact with the product. Gloves and do not touch the plating surface.

Sulfur-free paper is made from Arctic pollution-free long-fiber wood. No other chemical ingredients are added during papermaking, such as whitening agents, wet strength agents, sizing, etc. It is also very strict about the water used for papermaking.

Reasons why sulfur-free paper wrinkles

When the moisture content of sulfur-free paper and kraft paper changes, the paper fibers will expand or shrink due to water absorption and dehydration. The hydrogen bonds will also change the binding force when absorbing water or dehydration, thus deforming the sulfur-free paper.

Sulfur-free paper is highly absorbent and can easily absorb water and moisture when improperly packaged and stored. When sulfur-free paper absorbs moisture and is dehydrated and dried, the sulfur-free paper will generally become brittle and curled. Therefore, when it comes to the storage of sulfur-free paper, the humidity of the warehouse environment must be controlled.

There are two purposes for using sulfur-free paper:

1. Sulfur-free paper does not contain sulfur and will not react with the silver layer on the PCB surface.

2. Sulfur-free paper can have a barrier effect to prevent the copper layer under the immersed silver layer from reacting with oxygen in the air.

Environmentally friendly sulfur-free paper packaging will definitely become the future development direction

​As a marketing tool, today's packaging is not an accessory product, but a real commodity. Packaging has been given more functions. In addition to packaging goods, protecting goods, and facilitating transportation, it also has the functions of beautifying goods, marketing goods, and disseminating knowledge. Therefore, while focusing on environmental protection and innovation, packaging suppliers should pay more attention to their functionality when designing, while packaging material manufacturers should pay more attention to the fit between the product itself and customer needs. Sulfur-free paper is a very strong paper. In recent years, due to restrictions on the use of plastics, sulfur-free paper has become more widely used as packaging materials.

The development of multi-functional packaging still needs to be based on consumer needs and respond to market effects to find the right direction and achieve innovation. Environmentally friendly sulfur-free paper manufacturers will only develop products that meet the actual needs of brand manufacturers and will become the future development direction and popular trend.

Sulfur-free paper is a special paper for the PCB surface treatment process. Its function is to prevent the chemical reaction between silver and sulfur in the air, causing the silver-plated product to turn yellow. Therefore, use sulfur-free paper separators or as soon as possible after completing the product. Package products, and wear sulfur-free gloves when touching the products, and do not touch the electroplated surface.