The difference and function of the thickness of high temperature resistant labels used in the SMT field
High temperature resistant label paper is based on polyimide film and is coated with special pressure-sensitive adhesive.
It has good chemical and abrasion resistance and can withstand temperatures up to 320°C.
Chemical substances such as detergents and cleaning agents have a certain anti-corrosion effect and can maintain excellent performance
In extremely harsh environments with high temperatures and wear.
There are three main parts: base material, adhesive, base material.
High temperature 10.1
High temperature label paper is specially designed for character or barcode labels on printed circuit boards because
Can withstand the erosion of solder, flux, etc. encountered in the production of printed circuit boards.
The thickness is mainly 25um and 50um. Commonly used colors are matte white and bright white.
There are also some other custom colors like red, yellow, blue and green.
High temperature resistant label stickers are widely used in SMT and crest process of many electronic products,
Mainboards, anti-corrosion products, mobile phones and lithium batteries and other products.
In the field of SMT, there are mainly two kinds of high temperature resistant label paper, 25um and 50um.
The actual value of 25um is about 0.066mm, and the actual value of 50um is about 0.098mm.
What is the difference between two different thicknesses of label paper?
In fact, the temperature resistance performance of these two thicknesses of high temperature resistant label paper is exactly the same in application, and there is no difference in essence.
So why are there two different thicknesses? What does it do? Under normal circumstances, the thickness of 25um is used to print QR code labels,
The thickness of 50um is used for automatic labeling of small sizes such as 3*3mm, 5*5mm, 7*7mm, etc.
Because the small size is used for automatic labeling. When peeling off, if the label is thin, the label paper and the address are not easily separated,
In addition, the label paper is thick and the tension is large, and the surface paper and the bottom paper are easy to separate, so there will be a difference in thickness.
