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Choose paste glue properly.
Time：2018-10-30 08:52:25 Page view (1082)
In order to control the non-gluing of corrugated box paste, it is very important to select the correct glue for the box paste. Once the glue is used incorrectly, the whole batch of corrugated box paste will be opened. The basic principle of choosing paste box glue is to choose different glue according to the different surface treatment methods of corrugated color box paper. If the sticking position of the corrugated color box is the bonding between the ordinary paper surface and the ordinary paper surface, the ordinary white latex can be used when pasting the box; if the paper surface and the film surface (including light film and dumb film) are bonding printing equipment, the paper plastic water should be used when pasting the box, and different paper plastic water should be selected according to the different film surface materials, for example. For example, when pasting boxes with PET or OPP film, different paper-plastic water should be selected; if the paper surface is bonded with the UV glossy oil surface, the UV glue should be selected for pasting boxes; if the paper surface is bonded with the polished surface, the polished glue should be selected for pasting boxes. Scan form. The manual paste box or paste box is slow for map printing. The glue with a long opening time (from the time when the glue contacts with the binder to the time when the binder can no longer move freely) should be selected. The glue with a short opening time should be selected for the automatic paste box or paste box with a fast paste box.
When choosing paste glue, we must also consider the working environment of paste box workshop. The proportion of glue used in winter is different from that used in summer, because the same brand and batch of glue have different viscosities under different ambient temperatures. The lower the ambient temperature, the higher the viscosities of glue. Whether in winter or summer, glue is required to reach the most convenient viscosity in paste box production process. Because of the low temperature in winter and the high viscosity of CTP glue in China, if corrugated box manufacturers add diluents to adjust the glue viscosity, the glue adhesion will be affected to a certain extent.
Therefore, in order to maintain the adhesive force and the normal reaction mechanism of glue at lower ambient temperature, it is necessary to adjust the formula of glue, which is the reason why many glue which is very mature in the South can not be used directly in the north. In addition, we should also consider the use environment of corrugated color boxes. If the corrugated color boxes after pasting need to be sent to high temperature environment, we need to choose high temperature paste box glue; if the corrugated color boxes after pasting need to be sent to low temperature environment to use fault analysis and troubleshooting, we need to choose low temperature paste box glue. If the automatic paste box machine is equipped with a spray gun type, it is necessary to select the corresponding glue spray. At the same time, the performance of spray gun control system should also be considered. If the spray gun control system is hot melt mode, hot melt spray adhesive must be selected. If the spray gun control system is not heating, cold spray adhesive must be selected.
When choosing paste glue, we must also consider the working environment of paste box workshop. The proportion of glue used in winter is different from that used in summer, because the same brand and batch of glue have different viscosities under different ambient temperatures. The lower the ambient temperature, the higher the viscosities of glue. Whether in winter or summer, glue is required to reach the most convenient viscosity in paste box production process. Because of the low temperature in winter and the high viscosity of CTP glue in China, if corrugated box manufacturers add diluents to adjust the glue viscosity, the glue adhesion will be affected to a certain extent.
Therefore, in order to maintain the adhesive force and the normal reaction mechanism of glue at lower ambient temperature, it is necessary to adjust the formula of glue, which is the reason why many glue which is very mature in the South can not be used directly in the north. In addition, we should also consider the use environment of corrugated color boxes. If the corrugated color boxes after pasting need to be sent to high temperature environment, we need to choose high temperature paste box glue; if the corrugated color boxes after pasting need to be sent to low temperature environment to use fault analysis and troubleshooting, we need to choose low temperature paste box glue. If the automatic paste box machine is equipped with a spray gun type, it is necessary to select the corresponding glue spray. At the same time, the performance of spray gun control system should also be considered. If the spray gun control system is hot melt mode, hot melt spray adhesive must be selected. If the spray gun control system is not heating, cold spray adhesive must be selected.
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