A solder paste itself: 1. Liquidity. 2. Thixotropic coefficient (0.45-0.6) 3. flux content. 4. The shape of the alloy powder (spherical) 5. The viscosity of the alloy powder (110-200Pa.S) 2. Metal stencils: 1. The choice of mesh thickness (0.1-0.15MM) 2. Selection of stencil material 3. Pr ...READING MORE...
UV ink is a kind of chemical reaction ink. It is a specific application of UV light curing technology in the ink field. It consists of resin with unsaturated functional groups, reactive diluents and initiators, and pigments and auxiliaries. After printing on the substrate When exposed to ultraviol ...READING MORE...
The relationship between ink and dot gain Many factors in the ink such as pigments, tackiness, viscosity, and resin are all related to dot gain. The strength of the ink - its color strength - plays an important role in the dot enlargement. The ink is pressed by the printing plate and the blanket, ...READING MORE...
In the pad printing process, ink is often considered as the most critical factor affecting the print quality. However, the control of Other factors is also very important. The printing staff often attribute the printing problems caused by other factors to the ink. Sometimes they can not solve the ...READING MORE...
Preface: Today's packaging materials that fill the domestic market are basically inexpensive materials; the types of environmentally-degradable (or so-called edible) packaging materials are really small and their prices are relatively expensive; and the environmental protection green policies ...READING MORE...
The common quality problems in UV polishing are: 1. After glazing, after a period of time, the printed materials will be yellowed, red, and change colors; 2. The printed surface is not bright; pleats or streaks appear; 3. The glossy surface is sticky and not smooth; 4, the glazing layer is not ...READING MORE...
Appearance characteristics: The ice cream spring with this toothpaste has a gradient blue color, background pattern and text description to reflect each other, as much as possible to convey product characteristics information, high gloss represents a high quality, in the brand Excellent for constr ...READING MORE...