Flexographic application of water-based ink in carton printing
Date: Dec 14 2023 From: Star Color
With the increasing awareness of environmental protection, water-based ink, as an environmentally friendly printing material, has been widely used in the field of carton printing.Flexographic printing, as an advanced printing technology, has the advantages of high printing quality, wide application range and low printing cost.This paper will discuss the flexographic printing application of water-based ink in carton printing, in order to provide useful reference for related fields.
Characteristics of water-based ink
Water-based ink is a kind of ink with water as solvent, which has the advantages of non-toxic, tasteless and non-combustible.It has bright color, strong adhesion, fast drying speed, and good water resistance, acid and alkali resistance, chemical corrosion resistance and other properties.In addition, water-based ink also has better environmental performance, in line with environmental protection requirements.
Advantages of flexographic printing
Flexographic printing is an advanced printing technology with the following advantages:
1.High printing quality:Flexographic printing can achieve high-quality printing results, with good clarity and color brightness.
2.wide range of application：Flexographic printing is suitable for a variety of paper, plastic and other substrate materials, with a wide range of applications.
3.Low printing cost:Flexographic printing uses water-based inks as printing materials, and the cost is relatively low.
4.Good environmental protection：Flexographic printing using water-based ink as printing material, in line with environmental requirements.
Flexographic application of water-based ink in carton printing
1.printing equipment
Flexographic printing equipment mainly includes plate making equipment, printing press, drying equipment，etc.Among them, the plate making equipment is the process of converting the original manuscript to the plate, and it is necessary to choose the appropriate plate making method and material;Printing machine is the key equipment to realize printing, need to choose the right printing pressure and speed;The drying equipment is to make the water-based ink dry quickly.
2.printing technology
In the flexographic printing process of water-based ink, it is necessary to choose the appropriate printing process.First of all, it is necessary to choose the appropriate substrate material according to the material and size of the carton;Secondly, it is necessary to choose the appropriate plate making method and materials according to the printing requirements;Finally, it is necessary to select the appropriate printing process parameters according to the characteristics of the water-based ink and the performance of the flexographic press.
3.quality control
In order to ensure the flexographic printing quality of water-based ink in carton printing, strict quality control is required.First of all, the quality of the printing material needs to be checked to ensure that it meets the requirements;Secondly, it is necessary to check the quality of the plate making process to ensure the accuracy and quality of the plate;Finally, the quality of the printing process needs to be checked to ensure the printing quality and color brightness.
This paper discusses the flexographic printing application of water-based ink in carton printing.By analyzing the characteristics of water-based ink and the advantages of flexographic printing, as well as the analysis of practical application cases, the following conclusions can be drawn:The flexographic printing application of water-based ink in carton printing has good feasibility and practicability.It can not only improve the quality and performance of carton products, but also reduce production costs and meet environmental requirements.Therefore, in the future carton production, the flexographic printing technology of water-based ink can be further promoted and applied.At the same time, with the continuous development of science and technology and the changing market demand, it is also necessary to further study and explore more advanced and environmentally friendly carton production technology and methods.
As an environmentally friendly printing material, water-based ink has been widely used in the field of carton printing.However, the carton is often affected by various environmental factors during transportation and storage, such as temperature, humidity, ultraviolet light，etc.The weather resistance of water-based ink can be reduced, which affects the long-term preservation and use quality of the carton.Therefore, how to improve the weather resistance of water-based ink in carton printing has become an urgent problem to be solved.In this paper, the methods to improve the weatherability of water-based ink will be discussed from the aspects of composition, structure and production technology.
Composition and structure of water-based ink
Water-based ink is mainly composed of resin, pigment, additives and other components.Among them, resin is the main film-forming substance of water-based ink, and the active groups such as hydroxyl and carboxylic groups in its molecular structure can react with chemical substances, thus affecting the weatherability of water-based ink.Pigment is an important component of water-based ink, which can give ink color and hiding power.Additives play a role in adjusting the performance of the ink.
Method for improving weatherability of water-based ink
1.Choose high quality resin
Resin is the main film-forming substance of water-based ink, and the reactivity of active groups in its molecular structure with chemical substances has an important effect on the weatherability of water-based ink.Therefore, the selection of high quality resin is the key to improve the weatherability of water-based ink.High quality resin should have high chemical corrosion resistance, light resistance and weather resistance, which can effectively improve the weather resistance of water-based ink.
2.Optimized pigment selection
Pigment is an important component of water-based ink, and its properties also have an important effect on the weatherability of water-based ink.Therefore, when selecting pigments, attention should be paid to the performance of color brightness, hiding power, light resistance and weather resistance.At the same time, pigments with low volatility should be selected as far as possible to reduce the volatilization loss of pigments during storage and use.
3.Adjust the amount of additives
Additives are important components to adjust the performance of water-based ink, including wetting agent, leveling agent, desiccant,etc.By adjusting the amount and type of additives, the leveling property, drying speed and weather resistance of water-based ink can be improved.For example, appropriately increasing the amount of leveling agent can improve the leveling performance of water-based ink, improve printing quality and weather resistance;Appropriately increasing the amount of desiccant can speed up the drying speed of water-based ink, reduce the drying time in the printing process, and improve production efficiency.
4.Improve the production process
The production process is one of the important factors affecting the weatherability of water-based ink.By improving the production process, the quality and stability of water-based ink can be improved.For example, the use of advanced dispersion technology can improve the dispersion effect of pigments, improve the stability of water-based ink;Reasonable formulation design and production process control can reduce the impurity content in water-based ink and improve its weatherability.
In order to verify the effectiveness of the above method to improve the weatherability of water-based ink, we carried out an experimental study.First of all, we choose high-quality resin as the main film forming material, and adjust the amount of additives to improve the performance of water-based ink.Then, through comparative experiments and data analysis methods, we tested the weatherability of water-based inks treated by different methods.The experimental results show that the weatherability of water-based ink can be improved effectively by using high quality resin and adjusting the amount of additives.At the same time, improving the production process can also improve the quality and stability of water-based ink.
Based on the composition and structure of water-based ink, the methods to improve the weatherability of water-based ink are discussed in this paper.The weatherability of water-based ink can be effectively improved by selecting high quality resin, optimizing the selection of pigment, adjusting the amount of additives and improving the production process.This has important guiding significance and application value for carton printing industry.However, with the continuous improvement of environmental protection requirements and the changing market demand, further research and exploration of more environmentally friendly and efficient water-based ink preparation technology and its application fields are needed.At the same time, strengthening cooperation and exchanges with other fields is also one of the important ways to promote the development of water-based ink technology.
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