Solve the problem that water-based ink is not firmly attached to the substrate
Date: Nov 16 2023 From: Star Color
Water-based ink in the printing process often encounter the problem of adhesion, which not only affects the quality of printed matter, but also may have a negative impact on the reputation of the enterprise and customer satisfaction.This article will delve into the reasons why water-based inks do not adhere firmly to the substrate, and propose corresponding solutions and preventive measures to help the printing industry solve this problem.
The reason why the water-based ink is not firmly attached to the substrate
1.Improper handling of substrate：The surface energy, polarity and other characteristics of the substrate do not match, resulting in the water-based ink can not be well attached.
2.Improper printing process：During the printing process, if the drying speed is too fast or too slow, it may cause the ink to not adhere firmly to the substrate.
3.Improper ink formulation：In the formulation of water-based ink, if the binding materials, pigments, additives and other components are selected or matched improperly, it may also lead to poor adhesion.
4.Improper storage and transportation：During the storage and transportation of water-based ink, if the operation is not in accordance with the specified conditions, it may lead to a decline in the quality of the ink, thus affecting its adhesion performance.
5.Surface contamination of substrate：Before printing, if there are pollutants on the surface of the substrate, such as grease, dust, etc., it may also affect the attachment of the water-based ink.
The solution of water-based ink adhesion on the substrate is not strong
1.Choose the right substrate：According to the printing requirements and ink characteristics, select the surface energy, polarity and other characteristics of the water-based ink to match the substrate.
2.Adjusting the printing process：According to the equipment characteristics and printing requirements, the drying speed and other parameters in the printing process are reasonably adjusted to ensure that the ink is firmly attached to the substrate.
3.Choose the appropriate ink formula：Select appropriate ink formulas based on specific printing requirements and substrate characteristics to ensure ink adhesion performance.
4.Standardize storage and transportation：Water based inks are stored and transported in strict accordance with the prescribed conditions to ensure that their quality is stable and unchanged.
5.Clean the surface of the substrate：Before printing, the surface of the substrate is cleaned to remove pollutants and dust, etc., to ensure that the water-based ink can be well attached.
6.Using primer：For some difficult to adhere to the substrate, auxiliary means such as primer can be used to enhance the adhesion of water-based ink.
7.Adjust printing pressure：Reasonable adjustment of the printing pressure to ensure that the ink can be evenly distributed on the surface of the substrate, thereby improving its adhesion performance.
8.Control printing speed：According to the actual situation, reasonably control the printing speed to avoid too fast or too slow resulting in the ink on the substrate is not firmly attached.
9.Use additives：In some cases, the appropriate addition of some additives can improve the adhesion of water-based ink, such as leveling agents, thickeners, etc.
10.Adopt advanced printing equipment and technology：The use of advanced printing equipment and technology can better control the printing process and improve the adhesion of water-based ink.
Measures to prevent weak adhesion of water-based ink on substrates
1.Train operators:Professional training for operators, so that they understand the characteristics and use of water-based ink, to avoid improper operation caused by adhesion problems.
2.Develop operating procedures：Develop and implement strict operating procedures to ensure that operators carry out printing operations in accordance with the specified requirements.
3.Regular inspection and maintenance of equipment:Check and maintain the printing equipment regularly to ensure the normal operation of the equipment and avoid the problem of unstable adhesion due to equipment problems.
4.The use of stable quality ink and raw materials：Use water-based inks and raw materials with stable quality to avoid adhesion problems caused by quality problems.
5.Clean the printing equipment regularly：Develop and implement a plan for regular cleaning of the printing equipment to remove residues and contaminants in the equipment to avoid accumulation and drying leading to poor adhesion.
6.Adopt new technologies and equipment：Pay attention to and adopt new printing technology and equipment, improve the performance and efficiency of printing equipment, and reduce the occurrence of adhesion problems.
7.Strictly control the production environment:Ensure that the printing production environment is dry, clean, dust-free, etc., to avoid environmental factors affecting the adhesion of water-based ink.
8.Strengthen quality control：Establish a perfect quality control system, strictly check the quality of printed matter, timely find and solve the problem of adhesion.
9.Establish good cooperation with suppliers:Establish a good cooperative relationship with suppliers to ensure reliable and stable supply quality of raw materials and equipment, and avoid weak adhesion caused by supplier issues.
10.Continuous improvement and innovation：Continue to pay attention to industry trends and technological development, continue to improve and innovate printing processes and technologies, and improve the adhesion performance of water-based ink and the quality of printed matter.
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