The types of glues used today (corrugated and confronted) are more disorderly, and there are probably two categories: Box printing related knowledge 1. Oxidized starch and water glass glue. These glues are cheap and have a certain viscosity. Therefore, they are still used in some low-package and low-cost manufacturers. However, because such glues have strong alkalinity, they are sometimes packaged. It will show yellowing, softening, moisture absorption and brittleness, and then affect the printing quality of the ink. It will occur in various failures on the printing surface, so it belongs to the grade low-viscosity that should be eliminated. 2. Polyvinyl acetate emulsion modified glue, this kind of glue is environmentally friendly Adhesive, with high bonding strength and fast drying. It is widely used now, but the price is relatively high, and it is also divided into high school grade. In general, the higher the price, the greater the strength, the smaller the water content, and the high-grade packaging products generally use such high-quality glue. Box printing related knowledge In the practice of processing and production, there are generally the following quality problems that are common in the process: 1. The product exhibits a warp angle phenomenon. The primary reason for this situation is that there are too many sheets to be applied, and the glue on the edge of the cardboard is dry and cannot be stuck. Therefore, it is generally appropriate to press 20 sheets. 2. The humidity of the product is too large, especially for the flat card of the gold card. The first reason is that the penetration and loss of water by the gold card paper is very poor, while the ordinary flat glue has a higher water content. Therefore, it is generally treated with quick-drying glue or the product is placed in the sun to dry. 3. If the product is tiled or flat, if it is placed in an environment with a large air humidity, it will turn yellow when it is placed for a long time. First and foremost because some manufacturers use water-based glass glue or starch glue that is very alkaline. Therefore, in order to ensure the quality of the products, we should use better quality flat and corrugated plastic. 4. The delamination phenomenon of the packaged product is mainly caused by the strength of the adhesive. It is recommended to use some regular manufacturers' products, which can ensure the strength, reduce the humidity, add the stiffness, and improve the quality of the packaged product. level. We can also make: wooden box, logistics paper box, paper box, green fruit cartons, leather box, , acrylic box, card box, color card box Corrugated boxes, PVC boxes, etc., can also be classified according to the name Of the product, such as: gift box, wine box, chocolate box, pill box, pen box, food box, tea box, pencil case, etc. It is now made of wood, paper and Other blend materials.
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Product Categories : Gift Tray/gift Box > Folding Gift Box
