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Detailed Explanation of Measures to Reduce Ink Fuzzing

Detailed Explanation of Measures to Reduce Ink Fuzzing

Ink exhibits two key properties: viscosity and elasticity. When ink is subjected to a force that acts for an extremely brief period—approaching an impact-like condition—ink behaves primarily as an elastic material. As a result, the ink filaments formed tend to retract easily and are less likely to adhere firmly to the substrate being printed. On the other hand, when the ink is drawn into filaments, its viscosity becomes dominant, making it difficult for the ink to quickly retract. This can lead to the formation of suspended fine particles that fly into the air, causing "flying ink." At the moment when ink splits between the rollers, if the pressure distribution is uneven, voids will form within the ink film at the areas experiencing the lowest pressure. These voids then evolve into bubble nuclei, which gradually grow and eventually give rise to ink filaments, further exacerbating the phenomenon of flying ink. The poorer the wetting ability of the ink vehicle toward the pigment, the more readily bubble nuclei will form, and the more severe the flying ink problem will become.

21

2024

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06

What are the hazards of ink splatter in printing?

What are the hazards of ink splatter in printing?

In the printing industry, ink misting has long been a significant issue affecting both production efficiency and product quality. Not only does ink misting degrade the quality of printed materials by causing surface contamination and reducing color saturation, but it can also pose health risks to printing workers. Tiny ink droplets dispersed in the air can easily be inhaled into the lungs, and in severe cases, may even lead to safety incidents. Therefore, exploring and researching effective methods to prevent ink misting is of great importance for enhancing production efficiency in the printing industry, ensuring product quality, protecting the environment, and safeguarding workers’ health.

19

2024

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06

Why does printing ink cause ink misting?

Why does printing ink cause ink misting?

UV ink printing technology is an innovative printing method that relies on ultraviolet light to rapidly dry and cure the ink. At the heart of this process is the close coordination between inks containing photoinitiators and UV curing lamps. This synergy enables instant ink curing, significantly boosting printing efficiency. Thanks to its high efficiency and environmentally friendly characteristics, UV ink printing technology has found wide application in various fields, including packaging printing, commercial printing, and label printing. In the printing process, ink splashing is a particularly troublesome issue. To effectively prevent ink splashing, we need to take into account a variety of factors comprehensively, including the physical properties of the ink, the mechanical conditions of the printing press, and the printing environment itself.

18

2024

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06

Introduction to the UV Transfer Process

Introduction to the UV Transfer Process

The UV transfer process is an advanced surface treatment technology, also known as the UV casting or UV coating process. Its unique feature lies in the use of UV transfer adhesive, which exhibits non-stick properties on metal surfaces. Through a series of steps—including UV adhesive application, bonding, curing, and demolding—the process enables the transfer of textures, faithfully replicating various texture effects from molds onto materials such as PET, PC, or PMMA, thereby endowing these products with rich and diverse appearances. This process is widely used in products featuring window lenses, such as mobile phone lenses, mobile phone buttons, and mobile phone cameras, providing them with ultra-thin, high-hardness, excellent abrasion resistance, high solvent resistance, and beautifully varied aesthetic qualities.

15

2024

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06

Method for Determining Coating Viscosity

Method for Determining Coating Viscosity

Coating viscosity—the consistency of a coating—is the resistance to relative molecular movement that arises from intermolecular interactions during the flow of the coating. It is used to describe the degree of thickness or stickiness of a coating, indicating the resistance to flow or the viscous state of the coating under specific conditions. In the coatings industry, coating viscosity is regarded as a critically important technical parameter. It not only directly affects the application performance of the coating but also significantly influences the leveling and sagging characteristics of the paint film. In the coating process, selecting an appropriate coating viscosity is a key step in ensuring uniform and smooth coating results, playing an indispensable role in enhancing the overall quality of the coating.

14

2024

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06

Detailed description of the properties of acrylic resin

Detailed description of the properties of acrylic resin

Acrylic resin is a copolymer synthesized via polymerization reactions, using vinyl monomers such as acrylates, methacrylates, and styrene as the primary raw materials. Due to its unique chemical structure and properties, this copolymer finds extensive applications across numerous fields. When these monomers are polymerized to form acrylic resin, factors such as their molar ratios and polymerization conditions significantly influence the performance of the final product. For instance, adjusting the proportions of the monomers can alter the resin's hardness, flexibility, weather resistance, and other properties; meanwhile, polymerization conditions—such as temperature, pressure, and catalyst type—affect the reaction rate and the molecular weight distribution of the resulting polymer.

12

2024

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06

What are the types of acrylate adhesives?

What are the types of acrylate adhesives?

Acrylic adhesives are an important class of bonding agents that have found widespread applications across numerous fields thanks to their outstanding performance. The primary component of acrylic adhesives is an acrylic monomer containing a hydroester group, which typically exhibits excellent reactivity and adhesion properties. During the preparation process, these monomers undergo copolymerization with unsaturated olefin monomers to form high-molecular-weight polymers. Additionally, to further enhance the adhesive’s performance, appropriate additives such as thickeners, stabilizers, and curing agents are incorporated. Acrylic adhesives have attracted considerable attention for their exceptional performance. They not only cure and set rapidly but also boast high transparency, effectively preserving the original appearance of the bonded materials. Moreover, they demonstrate excellent adhesion to a wide variety of substrates, ensuring strong and reliable bonds. In addition, these adhesives exhibit outstanding resistance to weathering, water, and chemicals, enabling them to maintain stable performance under diverse environmental conditions. Notably, they are particularly well-suited for bonding hydrophobic surfaces, providing an ideal solution for a broad range of bonding applications.

07

2024

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06

Causes of Fading in UV Ink Labels and Corresponding Solutions

Causes of Fading in UV Ink Labels and Corresponding Solutions

UV ink, or ultraviolet-curable ink, is an ink that can rapidly dry and form a film upon exposure to ultraviolet light. It utilizes UV light of specific wavelengths and energy levels to cause monomers in the ink to polymerize into polymers, thereby achieving film formation and drying. UV ink boasts characteristics such as high efficiency, environmental friendliness, and rapid drying, and has been widely adopted in various printing applications. UV technology offers genuine advantages in label printing, stemming from its highly efficient reactivity and fast-curing ink system, which form the core of the printing production process. UV ink exhibits excellent opacity when used on dark substrates, and can also be formulated into high-gloss or matte finishes to meet the diverse visual requirements of different labels. The resulting ink film is soft yet possesses outstanding mechanical resistance, making UV ink an indispensable component in label printing.

05

2024

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06

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