Lovers who like to collect books know that books are exposed to the air and vulnerable to damage because they are placed in the bookcase for a long time, and the edge of the book is produced in this environment. Book edge hot printing technology can not only effectively protect books, but also play a beautification, decorative books, the original purpose of brush gold is to avoid dust falling into the book, and then avoid damage and acidification of the inside pages. Now, the top of the book, the bottom of the book, will be hot printing, but also do a lot of beautiful patterns, colors and so on. Although this hot stamping process is complicated and complex, ordinary hot stamping silver printing is widely used in daily life, as small as badges, buttons, trademarks, plastic handles, etc., to the surface decoration of furniture, has an important role and status in the printing industry. Anhui Sinograce Chemical Co., Ltd. water-based coated adhesive, is a water-based acrylic adhesive. Excellent overall performance, reasonable speed of conjunctiva after coating, fast drying of composite, good stiffness and fastness, high reflective rate, loyal to the primary color, colorless phase elegant; Coated adhesive powder ability is strong, the dry material is easy to clean, the composite product is resistant to rolling line, smashing and embossing, and has good adaptability to hot stamping, gold printing and silver printing. Wide temperature range, good freeze-thaw stability, can continue to use after freezing and thawing; High cost performance, simple process, easy to operate.

According to the different raw materials and equipment, the coating process can be divided into two kinds of coating process and pre-coating process. That is to say, the film used in the coating process is now coated, and the adhesive used is generally solvent-based and emulsion type, prepared according to need. However, the film used in the pre-coating process is pre-coated, and the adhesive used is generally hot melt and solvent volatile. According to the film process of paper printed matter, the film process can be divided into three categories: dry film process. Wet laminating and precoating pressing. Dry laminating method is the most commonly used laminating method in China, which is to coat a layer of adhesive on the plastic film, and then evaporate and dry the solvent in the adhesive through the drying tunnel of the laminating machine, and then bond with the paper printed matter to form a laminating product under hot pressing. Wet film is coated on the surface of the plastic film with a layer of adhesive, in the case of the adhesive is not dry, through the press roller adhesive and paper printed matter bonding, forming a film product. Since the emergence of water-based laminating machine, the process of water-based laminating machine has been popularized and applied, which is closely related to the characteristics of the wet laminating machine, such as simple operation, less adhesive amount, no organic solvent damage to the environment, high strength, high grade and easy recovery. At present, the coating process is more and more favored by domestic packaging manufacturers, and has been widely used in gift boxes, handbags and other packaging. Coating glue manufacturers said that the pre-coating coating method is the coating film manufacturers directly purchase the plastic film coated in advance, and when the film needs to be coated, the film and paper prints are hot pressed on the coating equipment to complete the coating process. The pre-coating process began in the 1990s. The pre-coated film is obtained by applying hot melt adhesive or low temperature resin to the film substrate quantitatively and uniformly with special equipment according to design. According to the coating adhesive manufacturer, the pre-coating coating method eliminates the need for adhesives, preparation, coating and drying, and the entire coating process can be completed in just a few seconds, without polluting the environment, no fire hazards, and no need to clean the coating equipment. At present, the technology has been applied to the field of medicine and food packaging. Sinograce company produces water-based laminating adhesive, excellent quality, cost-effective, technical support, welcome to contact.

There are many factors affecting the quality of the film, in addition to paper, ink layer, film, adhesive and so on In addition to the objective factors, it is also affected by subjective factors such as temperature, pressure, speed, and glue amount. If these factors are not handled well, various laminating quality problems will occur. There are snowflakes on the product 1.The amount of glue is too small: the amount of glue is too small, and snow spots will appear on the entire surface of the print. The amount of glue can be appropriately increased. 2.Inappropriate pressure: too much pressure on the pressure wheel will squeeze out the adhesive on the edge of the print, resulting in snowflake spots on the edge of the print; Snowflake spots can also appear if it is not compacted. The pressure can be adjusted appropriately. 3.Print powder spraying too much: print powder spraying too much, the compound appears loose pine flower white fog, encounter this situation, should be appropriate to increase the amount of glue, or in the coating before sweeping the print powder. The product has bubbles. 1.The printing ink layer is not dry: first hot press again and then glue, you can also postpone the coating date, so that it is dry. 2.The printing ink layer is too thick: the amount of adhesive coating can be appropriately increased, and the pressure and composite temperature can be increased 3.Film drying temperature is too high: the drying temperature is too high, will cause the adhesive surface crust and foaming failure, which should be appropriate to reduce the drying temperature. 4.Pressure wheel pressure is too small: there are bubbles on the surface of the entire printing product because the pressure of the pressure wheel is too small, and the pressure of the pressure wheel can be appropriately increased. The coated product has wrinkles The main reasons for the wrinkling of the coated product are the imbalance of the film transmission spoke, the inconsistency of the tightness at both ends of the film or the wavy edge, the thickness of the rubber layer, or the uneven electric wheel and the rubber spoke at both ends, the pressure is inconsistent, and the linear speed is different. Measures can be taken to adjust the transfer wheel to the equilibrium state, increase the film, adjust the amount of glue and increase the temperature of the drying channel, adjust the position and process parameters of the electric heating wheel and rubber wheel, etc.

In daily life, we will use glue in many places, and we often see the figure of water-based glue. If you say you can't remember where you used glue, look at street posters, advertisements, and alley shoe repairmen.We usually use glue in class or work to stick some paper, bills and so on. It can be said that water-based glue has always been around us. In addition, water-based adhesives have also been widely used in some enterprises. Maybe everyone has used water-based glue, but they do not know what water-based glue is. Water-based glue is actually a kind of glue made by emulsifying polyurethane resin or acrylic acid through a certain process using water as a solvent. Water-based adhesive has been widely used in many industries. Water-based adhesive can be so popular is also related to its own advantages. Its own adhesive property is relatively good, and the object can be adhered to well. The price of water-based adhesive is relatively low, compared with other types of products, the price of water-based adhesive is lower, and this point, whether it is for individuals or manufacturers, is very beneficial.