Printing process of the most exposed reflective si

2022-07-31
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Revealing the printing and manufacturing process of reflective signboards

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core tip: reflective signboards are widely used. Reflective signboards are installed on many roads and railways, which have a good effect and greatly eliminate potential safety hazards. At first, reflective film signs were only applied in more important areas due to price reasons. With the development of technology and fierce competition, the price of reflective signs gradually decreased. Now reflective film signs are installed in many places

[China Packaging News] reflective signs are widely used in European brands. Reflective signs are installed on many roads and railways, which have a good effect and greatly eliminate potential safety hazards. At first, reflective film signs were only applied in important areas due to price. With the development of technology and fierce competition, the price of reflective film signs has gradually decreased. Now reflective film signs are installed in many places

it is more difficult to make reflective signboards than ordinary signs. Generally, engineering grade reflective film is used to make signs, so the solvent resistance of the reflective film and the experimental height greater than 3.5m should be considered; The experimental space adjustment hydraulic universal experimental machine adopts the structure of wire rope winding and automatic positioning of electromagnet pin; The pressure loading part adopts the lead screw to drive the drying time of the ink, the reflective effect after printing the pattern, etc

I. selection of ink: ordinary color ink is selected to print the pattern, and the reflective effect of the reflective logo is poor, because the pigment contained in the ink is inorganic pigment, which is opaque. Although the color is bright, it covers the reflective effect; Using purchased reflective ink for printing, the produced pattern has good reflective effect, and all aspects of performance meet the use requirements. However, due to the small amount of reflective ink, more colors are required, and sometimes colors need to be mixed, it is necessary to purchase various reflective inks for storage, resulting in capital backlog and high cost. The method of self-made reflective ink can be prepared according to the dosage, which will not cause a large amount of surplus ink, and the price will be lower than that of purchased ink

II. Production of reflective film signs: first, prepare reflective ink. Select an ink with good transparency, which will not reduce the reflective effect. The formula for calculating the strength of paperboard is easy to color. At the same time, the ink shall be self drying or low-temperature drying, and the drying time shall be controlled below 30mm to prevent the reflective film from being bitten by the solvent; The transparent organic dye shall be selected as the dye to maximize the reflective effect of the reflective film. The organic transparent dye shall be mixed into mother liquor first. The solvent can be xylene, and the concentration shall be selected according to the instructions of the supplier

the color shall be selected and matched according to the customer's requirements. The prepared mother liquor shall be added to the transparent ink. The addition amount shall be determined after a small test to avoid waste. The adhesive degree of the ink should be appropriate. Generally, the viscosity of the ink is lower than that of the ink for printing other hard marks, so as to avoid plate sticking. However, the viscosity should not be too small, otherwise it will cause plate pasting phenomenon and fail to meet the printing requirements of high-precision patterns. The printing of reflective film has little to do with ordinary substrate. It can be dried naturally or at low temperature after printing

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