As we all know, with the development of society, people attach importance to food safety and so on, label printing is greatly encouraged, and label has become comparable to packaging. The development of label has driven the development of label printing, and ink is the main medicine in label printing,In the field of label printing, ink can be generally divided into three categories, namely: water-based label printing ink solvent-based label printing ink and UV label printing ink. Water-based ink safety, health and pollution-free, in line with environmental requirements, is conducive to human health; But there are also shortcomings, such as slow drying speed, low color saturation, poor stability, not printing a large area of field, long time prone to precipitation stratification phenomenon. Solvent-based label printing ink has strong adaptability to label materials, stable performance and high printing quality. But there are environmental pollution problems, some volatile solvents are harmful to human body. UV label printing ink has excellent performance, reliable quality and wide application range; But the price is high, and special drying equipment is needed, and there are certain requirements for supporting materials. We produce all kinds of printing inks, welcome to consult,this is our email sales@sinogracechem.com

Composition of pressure sensitive tape 1.Pressure sensitive adhesive, 2.substrate 3.Primer 4.Back treatment agent 5.Isolation paper The main components of the pressure sensitive adhesive and resin, including rubber such as polyacrylic acid ester or polyvinyl ether, homogeneous base material requirements, small scale and good to solvent invasive, including, (1) fabric such as cotton, glass cloth or nonwoven, etc., (2) the plastic films such as PE, PP, PVC and polyester film, (3) the paper such as kraft paper, glass transparent paper and so on, the base material The original degree is between 0.1-0.5mm. The function of primer is to increase the adhesive strength between the adhesive and the base material, so that when the adhesive tape is removed, the adhesive tape will not be separated from the base material and sully the surface, and make the adhesive tape reusable. The commonly used primer is chloroprene rubber partially vulcanized with isocyanate, modified chlorinated rubber. Backside treatment agents are usually prepared from materials such as polyacrylate,PVC, cellulose derivatives or silicone compounds. Can play the role of isolation agent. Double-sided adhesive tape with a layer of isolation paper such as semi-rigid PVC film,PP film or kraft paper. welcome you to consult, this is our email sales@sinogracechem.com

Finally, ordinary glue products, ordinary glue products have a certain elasticity and softness, and have a good tensile length but tensile strength and strength is not very large, adhesionwelcome you to consult, this is our email sales@sinogracechem.com

All kinds of pigments have different absorption rate of light of different wavelengths (transmittance), the absorption rate of pigments is smaller, transmittance is larger, the curing speed of the coating is faster ultraviolet absorption capacity of carbon black is higher, curing is the slowest, white pigment is reflective, also hinder the curing of the general and uv absorption order is: Black>The same pigment ratio concentration is different, the influence of ink film curing rate is different with the increase of the amount of pigment, the curing rate of the ink film has a different process of decline among which the amount of yellow pigment has the greatest influence on the curing rate of the ink film, followed by red pigment green pigment When the amount of pigment is too large, the curing rate of the surface layer of the ink film is fast, but the pigment on the surface absorbs a lot of ULTRAVIOLET light, reduces the transmittance of ultraviolet light, affects the curing of the deep ink film, resulting in the curing of the surface layer of the ink film and the bottom layer is not curing, easy to produce wrinkling phenomenon.