12/11/2021

Precautions For Flexible Packaging Composite Waterborne Adhesive

Precautions For Flexible Packaging Composite Waterborne Adhesive Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Precautions For Flexible Packaging Composite Waterborne Adhesive 1. Because of the bidirectional nature of the molecular structure, it is best to apply the composite between the plastic film and the aluminized film, that is, the non-polar end will be firmly connected to the film, and the polar end will be firmly connected to the aluminized layer.Precautions For Flexible Packaging Composite Waterborne Adhesive 2. Because water is not volatile, it has strict requirements for drying process. The temperature should rise evenly from low. The drying air volume is sufficient, and the wind speed is controlled by 8-12m / s.Precautions For Flexible Packaging Composite Waterborne Adhesive        The anemometer can be used for measurement here, but it must be noted that the impeller and sens […]
12/11/2021

Causes And Control Of Wrinkles In Box Board Ppaper Roll

Causes and control of wrinkles in box board paper roll       Good paper roll quality is a necessary condition for further processing.Causes and control of wrinkles in box board paper roll.Causes And Control Of Wrinkles In Box Board Ppaper Roll       During the coiling process of paperboard, various shapes of live pleats or dead pleats will appear in the paper roll due to different tightness of paper roll, defects of paper rolling equipment and improper operation.Causes and control of wrinkles in box board paper roll.Causes And Control Of Wrinkles In Box Board Ppaper Roll 1、 The thickness, moisture and evenness of the paper fed into the unwinder are inconsistent, resulting in inconsistent stress on all parts of the paper web in the paper roll.         When the thickness of the paper web is uneven and the paper roll is rolled to a certain diameter, the tension of the whole paper roll will be different. Causes and control of wrinkles in box board paper roll&n […]
12/11/2021

Analysis Of Printing Pressure And Paper Stripping Force

Analysis Of Printing Pressure And Paper Stripping Force        Analysis Of Printing Pressure And Paper Stripping Force 1. Printing pressure and paper deformation    Analysis Of Printing Pressure And Paper Stripping Force       Paper is a material with plastic deformation, and the plastic deformation characteristics of different papers are also different.Analysis Of Printing Pressure And Paper Stripping Force       Under the action of large printing pressure, the width and the length of the two corners of the trailing tip of the paper with large plastic deformation will expand slightly, resulting in inaccurate overprint, especially in the trailing tip of the paper.Analysis Of Printing Pressure And Paper Stripping Force         The greater the printing pressure, the more obvious the deformation of the paper. Therefore, when printing the same batch of products, the pressure of each color printing plate should be as consistent as possible, Analysis Of Printing Pressure And Paper Stripping […]
12/11/2021

Printing Ash Balance Adjustment

Printing Ash Balance Adjustment        In the packaging and printing industry, a variety of balance technologies are often needed.Printing Ash Balance Adjustment (1) Black plate effect         The ideal color reproduction only needs the superposition of Y, m and C primary color inks to combine thousands of colors and achromatic with different brightness. This is the three primary color reproduction theory. However, the three primary color ink can not print the ideal neutral gray and can not reach the required density (shown in Figure 4-4-2). Printing Ash Balance Adjustment       The field density of four-color printing is higher than that of three-color printing, which is due to the use of black plate compensation. In multi-color printing, it is in the state of wet pressing and wet printing.Printing Ash Balance Adjustment        When the ink layer is thick, it is not easy to dry, and it is easy to produce poor overprint. The a […]
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