Precautions for carton gravure ink
Date: Nov 09 2023 From: Star Color
With the increasing awareness of environmental protection, the printing industry is actively seeking more environmentally friendly and sustainable solutions.As a new type of environmental protection ink,
carton gravure ink has many unique properties and wide application fields.This paper will deeply discuss the precautions of carton gravure ink , including the selection of printing materials, the matching of printing equipment, the optimization of printing process and quality control, in order to provide useful reference and guidance for relevant practitioners.
Choice of printing materials
1.Ink varieties and characteristics
The main components of carton gravure ink include water-based resins, pigments, auxilaries and water, etc., which have the characteristics of environmental protection, high brightness and high hiding power.Different brands and models of ink in the performance and quality there are differences, therefore, in the selection of ink, should be based on the material, use and printing process requirements and other factors for comprehensive consideration.
2.Substrate material and treatment
The carton substrate should be selected with uniform texture, no sand hole, no oil, and the necessary pretreatment, such as cleaning, coating, etc., to improve the printing effect and the quality of the substrate.For some special materials of the carton, such as coated paper, plastic, etc., but also need to carry out special treatment and adapt the corresponding ink.
3.Printing plate material and plate making technology
Gravure printing plate materials are generally nickel plate or resin plate, plate making process including corrosion method, photopolymerization method, etc.In the selection of plate materials and plate making process, should be based on the accuracy of the print requirements, printing speed and intaglio printing resistance and other factors for comprehensive consideration.
Matching of printing equipment
1.Types and characteristics of gravure printing machines
Gravure printing presses can be divided into rotary gravure printing presses and plate gravure printing presses, and different types and brands of printing presses have differences in printing speed, printing quality and production costs.When selecting a printing press, it should be comprehensively considered according to the number, size and printing process requirements of the printed matter.
2.The drying device is equipped with the equipment
In the process of water-based ink printing of carton gravure, the selection of drying device and equipment matching have an important impact on printing quality and production efficiency.The appropriate drying device and equipment supporting scheme should be selected according to the material, thickness, drying speed and quality requirements of the printed matter.
3.Ink circulation and ink supply system
Ink circulation and ink supply system is an important part of gravure printing machine, which directly affects the printing quality and production efficiency.When selecting the ink cycle and ink supply system, factors such as the model of the printing machine, printing speed and ink consumption should be comprehensively considered to ensure the stability and reliability of the system.
Optimization of printing process
1.Printing color sequence and overprint rate
When printing water-based ink for carton gravure, a reasonable printing color sequence and overprint rate should be determined according to the color requirements of the printed matter and the characteristics of the printing process.At the same time, attention should be paid to controlling the viscosity, viscosity and PH value of the ink to ensure good printability and color effects.
2.Printing pressure and speed control
Printing pressure and speed are important factors affecting the quality of intaglio prints.In the production process, the printing pressure and speed control should be reasonably adjusted according to the type, specification and substrate material of the printing press, so as to ensure that the clarity, color reproduction and intaglio printing resistance of the printed matter meet the requirements.
3.Drying temperature and time control
Drying temperature and time are important factors affecting the drying effect of water-based gravure ink.In the production process, the drying temperature and time control should be reasonably adjusted according to the material, thickness and quality requirements of the printed matter, to ensure that the drying speed and drying degree of the ink meet the requirements, and to avoid sticky, powdered and other phenomena.
Quality control
1.Establish a sound quality control system
The establishment of perfect quality control system is the key link to ensure the quality of water-based inks in carton printing.The quality control system should include raw material inspection, production process monitoring, finished product inspection and other links to ensure that product quality meets customer requirements and market standards.
2.Strengthen staff training and technical upgrading
Staff training and technical upgrading are important ways to improve the quality of intaglio prints.It is necessary to strengthen the professional skills training and safe operation training of employees, improve their attention to product quality and operation level, and reduce the impact of human factors on product quality.
3.Pay attention to safe and civilized production
In the production process, we should pay attention to safe and civilized production, and comply with relevant laws and regulations and company rules and regulations.Strengthen equipment maintenance and safety inspection to ensure safe and reliable operation of equipment;At the same time, it pays attention to the input and practice of improving the working environment and protecting the health of employees.Only by doing these work can we better improve product quality and production efficiency and ensure the personal safety and health of employees to achieve sustainable development goals.
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