Dot Transfer Law of Flexographic Printing       In the packaging and printing industry, a variety of flexible printing are often used.Dot Transfer Law of Flexographic Printing 1. Reasons for network expansion        Dot expansion in printing is inevitable. There are two main reasons for dot expansion: one is physical or mechanical. At the moment of embossing, the ink on the printing plate dot will deform due to extrusion, resulting in dot expansion;Dot Transfer Law of Flexographic Printing       Another reason is optical, that is, dot enlargement is caused by the reflection of light. Light is scattered at the edge of dot ink film, resulting in considerable dot enlargement in vision. Optical dot expansion depends on the transparency of ink and the smoothness and absorption of paper.Dot Transfer Law of Flexographic Printing   2. Flexo dot transfer law         In flexographic printing, due to the large elasticity of the photosensitive resin plate used and the need to apply a certain print […]

Tips And Answers For Using Ink         Composite ink has no problem in printing, but there are white spots in composite aluminized film, and the covering power is greatly reduced. How to deal with the above problems?Tips And Answers For Using Ink        First, increase the amount of coloring material in the ink; Secondly, alcohol ether solvent or leveling agent is introduced in the formulation design; Third, increase the amount of antistatic dispersant or auxiliary resin with low viscosity;Tips And Answers For Using Ink         Fourth, when printing, move the scraper upward a little or increase the printing pressure appropriately. You can also change the printing plate with deep hole to improve the thickness of ink film and promote the wetting and leveling of ink.Tips And Answers For Using Ink  Surface printing ink is not inked when printing. How to deal with it?Tips And Answers For Using Ink        The ink does not adhere to the substrate, indicating that the formulation design of the […]

Overview of Commonly Used Printing Paper        Modern packaging and printing products often use a variety of paper, including most of our daily needs.Overview of Commonly Used Printing Paper art paper      The pigment, adhesive and auxiliary materials are made into coatings, which are coated on the surface of paperboard by special equipment. After drying and calendering, a smooth and dense coating is formed on the paper surface to obtain coated paper with good surface performance and printing performance.Overview of Commonly Used Printing Paper        It is mainly used for cigarette boxes, labels, cartons, etc. The most commonly used paper has good surface gloss and is suitable for various color effects.Overview of Commonly Used Printing Paper       Mainly single-sided offset printing paper. The paper surface is white and smooth, but the whiteness, tightness and smoothness are lower than those of coated paper. Overview of Commonly Used Printing Paper        Super calendered offset pap […]

Precautions For Using UV Printing       Ink roller, blanket or resin plate are often used in packaging printing.Precautions For Using UV Printing        The use of UV ink or UV varnish may cause the swelling of general printing ink roller, blanket or resin plate.         If the swelling is more serious, peeling or surface fragmentation will occur. It is very important to select appropriate or use specified UV special blanket and resin plate.Precautions For Using UV Printing        Many UV ink suppliers will recommend a standard range. For example, the materials of blanket treated with nitrification or butyl nitrification may be combined with oily, UV ink or polishing oil. Precautions For Using UV Printing        Natural rubber and polyethane materials will swell and cannot be applied to UV ink and varnish.Precautions For Using UV Printing        The blanket made of EPDM is especially suitable for UV ink and varnish, but it may not be suitable for general oil-based ink. EPDM rubber blan […]