1. Pre-press process design Due to the poor abrasion resistance of vacuum aluminized printed products, the gloss is not high, the material is easy to break, the crease line is easy to show off, and other practical problems will directly lead to poor product molding, poor material stiffness, and printing ink will be fine Cracks and other issues. Therefore, in addition to the selection of high-quality aluminum-coated paper, in the design of printing process, the characteristics of aluminum-coated paper should be used as much as possible to avoid weaknesses. For the design of printed graphics and text, try to avoid using large areas of opaque ink as the background color, and use the open bottom effect to highlight the unique metallic luster color of aluminized paper. For offset printing dot images, the area is preferably small, avoid large areas of four-color overprinting, use spot color printing to improve color saturation. The color should be selected as much as possible to highlight the metal color tendency and gloss of the aluminized paper, and use less contrasting spot colors. When choosing ink, you should also try to use good transparency for printing. Pay attention to the effect of the metallic luster of the aluminum paper on the color of the ink. Different cardboard background colors will have different color effects. If transparent yellow is printed on the aluminum layer, it can be golden yellow. Avoid overprinting of small text and lines, so as not to reveal the bottom or wrong colors, increase the difficulty of overprinting, and increase the scrap rate. Try not to print large-area spot color blocks at the crease lines to prevent the appearance of white or crease lines, and make up for the lack of material foldability. Learn more about the printing performance of aluminized paper, post-press processing technology and the requirements of customers on the machine packaging process, fully consider the printing characteristics of aluminized paper, and use multi-color matching. 2. Selection of ink Vacuum aluminized paper is suitable for UV ink printing. Offset printing, screen printing, gravure printing, etc. can be used, but different printing methods have different requirements for ink. The ten vacuum aluminized paper is not resistant to friction, so it is necessary to reduce the number of overprints as much as possible during the printing process, and the speed should not be too fast. In addition, the process formula of the aluminized material can be adjusted according to the specific situation, and it is easy to crack when the paper is hard , The paper is not wear-resistant when it is soft; the viscosity of general ink should be lowered to avoid affecting the composite effect of the product. In the selection of ink, pay attention to the matching of the ink and the printing material. The surface coating of the aluminum-coated paper is suitable for water-based coating; the water content of the aluminum-coated paper is controlled at 5% to 6%. For the cracking problem of vacuum aluminized paper, this usually occurs only one or two months after printing or even packaging. In order to avoid this situation, it is generally necessary to do a printing test and test it by placing it for a period of time. The stability of the material will be mass produced after the material is qualified. (1) Offset printing, screen printing The aluminum layer of vacuum aluminized paper has poor ink absorption, especially during offset printing, the process of ink penetration, polymerization, oxidation, film formation and drying on the vacuum aluminized paper is longer. Due to poor adhesion, sometimes the ink at the fold breaks, and UV offset printing ink can try POP ink, and also pay attention to the viscosity of the ink. Offset printing and screen printing should be based on the drying speed of the ink to determine the startup speed. The moisture control of offset printing is subject to the dirty version. In order to facilitate the final drying, many vacuum aluminum-coated paper production enterprises often apply water on the back side, but do not carry out backwater treatment before providing them to printing companies, which makes the aluminum-coated paper easy to curl during the printing process. The surface of the aluminum-coated paper itself has a certain number of tiny holes, and moisture can penetrate into the paper, which shows the importance of moisture control. Special attention should be paid to the adhesion fastness and color explosion of aluminum-plated paper printing. There are two main cases for the adhesion fastness of ink. First, the ink printed after printing pulls the ink printed first; second, after printing The ink layer on the surface of the paper is not strong enough to be easily pulled off. For the solution, the former recommends increasing the UV curing intensity of the cyanosis or using wet humidification and overprinting, and the curing process is completed at the receiving part at a time; the latter is to use high-tenacity ultraviolet curing ink and add a special adjustment oil Adjust its viscosity. As for the problem of color explosion, the general solutions are: first, use water-based varnish primer before UV printing; second, use special color blocks to overprint twice to increase the thickness of the ink layer to increase the folding resistance; third, try to choose high toughness Ink. In the process of offset printing and screen printing vacuum aluminum plating materials, due to the poor adhesion of UV offset printing ink to the paper surface, sometimes the phenomenon of ink breakage at the crease may occur, pay attention to its ink adhesion, and also pay attention to the viscosity of the ink . Offset printing and screen printing should be based on the drying speed of the ink to determine the startup speed. The moisture control of offset printing is subject to the dirty version. Because the surface of vacuum aluminized paper is not like composite aluminum foil paper and PET paper, it has certain fine pores, and moisture can penetrate into the paper, so the control of moisture is very important; ③ The printing of vacuum aluminized paper cannot be stacked too much , The maximum number of paper jams is 3000, because the surface of the vacuum aluminized paper is not wear-resistant, too much stacking will crush the printed surface; ④ Note that the storage time of the vacuum aluminized paper should not be too long, it is best not to exceed two months, because After a long time, the surface will stick to the back of the paper, causing the paper to bloom; ⑤ The printing of vacuum aluminized paper should pay attention to the temperature when thermal curing is not too high, and the temperature will affect the surface of the vacuum aluminized paper, making it flower , And too hot paper shrinkage and deformation is too large, a great impact on post-processing. (2) Gravure In terms of the suitability of aluminized paper and gravure printing, the requirements for inks today mainly focus on solving the two aspects of ink adhesion and color explosion. In order to have good adhesion between aluminum-coated paper and gravure ink, the medium between the two-varnish is the key, it can not corrode the electroplated layer, but also has a good affinity, and does not affect the subsequent printing Leveling. Some industry insiders pointed out that using 300 mesh anilox rollers on aluminized paper, and then applying a uniform water-based varnish to increase the surface tension of the paper to more than 38 dynes, can achieve the desired effect, and initially solved the problem of gravure ink adhesion . Once the aluminized paper is not properly controlled, it is easy to burst color, which is related to many factors such as the paper itself, PET film, glue glue, ink, temperature control operation and so on. As far as ink is concerned, the binder of the ink is composed of resin and solvent. The resin has the ability to contain and release the pigment, and the solvent plays the role of dispersion and dissolution. The different types and ratios of resins and solvents can determine various performance indexes such as ink transferability, dryness and ink layer fastness. Generally, gravure inks are composed of two or three resins and two or three corresponding additives with pigments and mixed solvents. In the use of ink, according to the characteristics of aluminized paper, increase the proportion of flexible resin in the ink and the corresponding solvent, and pay attention to control the fineness of the pigment particles in the ink (generally controlled to 3 microns to 8 microns). If the pigment is flake-shaped, the color paste can be subjected to a quick sanding process to refine the soft particles that are difficult to filter in the original color paste, and the appropriate optimization treatment can be performed without changing the characteristics of high transparency and high gloss. You can get the ideal effect. In addition, we must pay attention to adjust and control the viscosity of the ink to improve the connection between the resin and the pigment and the anti-explosion ability. The hue, saturation, and transparency of the ink have a great influence on the coloring effect of the aluminized paper. The ordinary 3 to 4 sanding pigments can reduce the fineness, but it is easy to make the pigment color in the ink black and dark , And there is a phenomenon of back to thick. To solve this problem, it is recommended to use pigment chips (that is, ink slices, such as those produced by Zhuhai Fandiya Ink Co., Ltd.). This color chip pre-dispersed pigment uses a special production process to reduce the pigment itself The best shade of light. The mirror-like light transmission effect is also an important factor to ensure the metallic luster on pure aluminum foil and aluminized paper products. It does not affect the unique effects of aluminized laser paper, but also makes the ink transfer smoothly to meet the needs of overprinting, stacking flexibility, friction resistance, heat resistance, post-processing and other operations.
sample is available for pet dog leash, pet pu leash, dog and cat leash and etc.
welcome to discuss the details,we will give the professional suggestion and sent the sample for check the quality.
Dongyang Yadi Pet Product Co , Ltd was founded in 2006 and covers an area of 6500 square meters . We are located in Zhejiang , the famous manufacturing city in China.We are specialized in developing and manufacturing many kinds of pet products. Our featured products are pet collar ,pet leash ,pet harness, pet clothes,pet bandana, small pet products, ect.
In order to take up the market , our company focuses on introducing and cultivating talents as well as constantly developing new products.We always take the principle of [credibility , concentrate on work , quality supreme , innovation and development", with a heart of thanks giving to return customers and society.
Welcome to visit our company!
hope we will cooperate in near future.
Pet Leash,Pet Dog Leash,Pet Pu Leash,Dog And Cat Leash Dongyang Yadi Pet Product Co.,Ltd , https://www.dyyadipet.com