In actual production, there are often cases where the compressive strength of the carton is degraded due to improper design and printing methods. Therefore, the following problems should be noted in the design and printing of the corrugated box.
(1) Avoid full-print corrugated box full-size printing or graphics printing around, in addition to embossing roller pressure on the corrugated board, the ink also has a wetting effect on the paper surface, which will reduce the compressive strength of the corrugated box . Therefore, the simpler the printing of corrugated cartons is, the better the artwork should be. It is best to avoid printing artwork on the entire surface of the box as much as possible.
(2) To avoid banding (the same direction as corrugated board machinery), there is a lack of printing process knowledge for the decorators who are printing. The design of the carton printing pattern has some horizontal gradient lines. When printing, the printing pressure will crush the corrugation. Stress concentration occurs in this area of ​​the carton and is therefore the most easily broken.
(3) The color of the ink is conspicuous Because the color of the corrugated cardboard itself is quite dark, when selecting the printing color, it is necessary to take into consideration that the ink with a large color saturation and a strong coloring ink (such as a large red) must be used, otherwise the printed color There is a big gap with the desired color.
(4) Minimize the number of overprints The more overprints, the more severe the compressive strength of corrugated boxes declines.
(5) Avoid printing small letters as corrugated boxes. Consider the effect of promotional products and determine the size of the font. Words with a size of 2cm or less are almost indistinguishable when the distance is 5m or more. This loses the significance of publicity and promotion.
(6) Minimize the printing pressure To ensure the quality of carton printing and reduce the impact on the strength of corrugated cartons, the printing pressure should be as small as possible, and ink should be used as fast as possible. Secondly, the printing surface and the horizontal indentation line should be maintained at a distance of 15mm or more, because the corrugated cardboard cannot be fully accepted by the pressure of the presser platen of the binding machine, otherwise the printing effect will be affected.
(1) Avoid full-print corrugated box full-size printing or graphics printing around, in addition to embossing roller pressure on the corrugated board, the ink also has a wetting effect on the paper surface, which will reduce the compressive strength of the corrugated box . Therefore, the simpler the printing of corrugated cartons is, the better the artwork should be. It is best to avoid printing artwork on the entire surface of the box as much as possible.
(2) To avoid banding (the same direction as corrugated board machinery), there is a lack of printing process knowledge for the decorators who are printing. The design of the carton printing pattern has some horizontal gradient lines. When printing, the printing pressure will crush the corrugation. Stress concentration occurs in this area of ​​the carton and is therefore the most easily broken.
(3) The color of the ink is conspicuous Because the color of the corrugated cardboard itself is quite dark, when selecting the printing color, it is necessary to take into consideration that the ink with a large color saturation and a strong coloring ink (such as a large red) must be used, otherwise the printed color There is a big gap with the desired color.
(4) Minimize the number of overprints The more overprints, the more severe the compressive strength of corrugated boxes declines.
(5) Avoid printing small letters as corrugated boxes. Consider the effect of promotional products and determine the size of the font. Words with a size of 2cm or less are almost indistinguishable when the distance is 5m or more. This loses the significance of publicity and promotion.
(6) Minimize the printing pressure To ensure the quality of carton printing and reduce the impact on the strength of corrugated cartons, the printing pressure should be as small as possible, and ink should be used as fast as possible. Secondly, the printing surface and the horizontal indentation line should be maintained at a distance of 15mm or more, because the corrugated cardboard cannot be fully accepted by the pressure of the presser platen of the binding machine, otherwise the printing effect will be affected.
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