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  A beer bottle taken out of the freezer will have small droplets of water attached to its outer surface, but its shiny label paper is not damaged by the water droplets. The shampoo in our bathrooms has a label that does not fall off even after it has been exposed to water. This is because the labels are made of   wet strength paper . Let's take a look at what wet strength is. Wet Strength Wet strength chemicals provide strength to paper when it is wetted, this is called wet strength. Wet strength chemicals have little or no effect on the properties of the paper when dry, but when wet, the paper is stronger and resists breakage, tearing and friction damage. These agents are used in a wide range of grades of paper (household paper products, paperboard, etc.). Due to their highly cationic nature, they can help retain anionic additives. By combining them with the polyamide epichlorohydrin resin and polyamine epichlorohydrin resin ranges, they show excellent results in the range of hig

  Dongguang Yangli Carton Machinery Co., Ltd   is a China carton machinery manufacturer, specializing in manufacturing and exporting corrugated carton machinery, offering free solutions for 3-layer, 5-layer and 7-layer corrugated carton production lines!   Corrugated Cardboard Machine A corrugator is a group of machines designed to form single, double or triple wall panels from three, five or seven sheets of paper in a continuous process. Corrugating and gluing the grooves to a single liner Gluing the outer lining to make rigid panels Cutting the board to the desired size Three sheets of paper (cardboard) are simultaneously unrolled on the corrugator: the inner liner, the outer liner and the intermediate medium (also called corrugated board). A "wave" is given to the medium table. This corrugation is obtained by pressing the sheet under heat with grooved metal rolls. This operation gives the paper a fluted shape in the single-sided machine. Starch is applied to the fluted tip

  Automotive masking paper   is among the most used products to mask off wide areas of vehicles during painting. Thanks to its thickness and consistence, it is preferred to masking film when protecting wide gaps such as window openings and trunks. Here are some tips to choose a good product and apply it properly.     Let's start from the application automotive masking paper must be used in combination with masking tape  to protect wide areas and large gaps from paint overspray. Its use is easy and quick: you just have to apply masking tape to both the edges of the area to mask and the border of the sheet of paper, and then match the two with a masking solution known as tape on tape application. Now masking paper is on place and you are ready to start with the painting.   How to choose car masking paper Choosing professional automotive masking paper is essential not just for the quality of the job, but also for easing the job itself, making it quicker and saving time while increasin

Although printing on  cosmetics containers  and packages looks the same at first glance, there are actually various printing methods.   The following items are explained here. ● Silkscreen printing ● Pad printing ● Offset printing ● Hot-dry printing ● UV printing ● Inkjet printing ● Coating ● Vapor Deposition  ● Hot stamp printing ● Shrink  ● In-mold printing ● Adhesive labels *The methods employed differ depending on the container (material) manufacturer, finish, quality, etc.     1. Silkscreen printing (silk printing) A technique for printing by using a silkscreen made of nylon, Tetoron, or other synthetic fiber (silk used in the past) attached to a frame, filling the mesh of the silk with emulsion in areas not to be printed, and rubbing the paint with a squeegee while applying pressure. The printing process is repeated by printing one color and drying, and a printing plate for the number of colors is required. *Color compositing is not possible. The printed ink layer is thicker and