Nickel mesh of Open Type Rotary Screen Printing Machine selection
There are many kinds of nickel meshes, which can be divided into pure nickel-nickel mesh and nickel mesh mixed with impurities according to the material. The pure nickel mesh is better than the nickel mesh mixed with impurities in the toughness and service life. However, the price is high. If it is large-volume and strict in quality, it is necessary to choose a nickel mesh with better quality.
On the contrary, the product with less strict quality requirements can be used to reduce the cost and choose a nickel mesh of impurities with cheaper price. According to the specifications of the nickel mesh with 480, 641, 913mm, etc., the longer the perimeter of the nickel mesh is, the more it will be spent, and vice versa. According to the width of the nickel mesh, there are 1280, 1620, 1850, 2400, 2800, 3200mm, which can adapt to the fabric printing of different widths. According to the number of meshes of nickel mesh, it can be divided into 290, 670, 1150, 1630 mesh, etc. There are many factors in the selection of mesh mesh number, mainly flower-shaped structure (the finer the flower pattern, the larger the mesh number); fabric thickness (The thicker the fabric, the larger the amount of suction, the smaller mesh should be used); the color of the paste (the better the fluidity of the paste, the larger mesh can be selected).
glue modulation of rotary screen printing machine
Printing is mainly divided into paint printing, reactive printing and acid printing. The paint printing is directly adsorbed on the surface of the fiber by the adhesive, and the price is low, and the chromatogram is complete, which is suitable for most fabric printing, but the color fastness is poor and the hand feel is hard. Reactive printing, also known as reactive printing, can react with fiber molecules to combine dyes and fibers into one whole.
Therefore, the color fastness is excellent, it is absolutely harmless to the human body, and the long-time washing does not fade, but the price is high. Acid printing is mainly applied to the printing of protein fibers such as wool and silk. The chromatogram is complete and the color is bright. Because of the poor directness to cellulose fibers, it is generally not used to print cellulose fibers with acid dyes.
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