Polyurethane dispersion(PUD) are water-based polymeric materials that find wide application across various industries, including the production of gloves. PUD are known for their excellent film-forming properties, high elasticity, and good mechanical strength. They are commonly used as coating materials in glove manufacturing due to their desirable properties, such as flexibility, durability, and ...
From a chemical perspective, waterborne polyurethane resin is essentially a-viscosity liquid composed of uniformly dispersed gel particles in water. During the of chain growth, the viscosity of the emulsion generally maintains a state of equilibrium, and its variation mainly comes from the increase in molecular weight of the particles themselves. In practical applications, when the temperature for...
On the impact that water has on waterborne polyurethane, we can delve into it from two perspectives. Firstly, water can penetrate between the molecules of waterborne polyurethane, resin and this effect is similar to that of a plasticizer. In this process, water undergoes hydrogen bonding interactions with the polar carbamate groups in the polyurethane molecules, resulting in a significant reductio...
To select the suitable polyurethane resin for gravure lamination ink, the following several key factors need to be considered: Printing substrate: Determine the type of substrate on which the ink will be applied, such as paper, plastic film, etc. Different substrates may require polyurethane resin with specific properties. Adhesion: Ensure that the polyurethane resin can provide good adhesion on t...
In the field of gravure compound ink, polyurethane resin plays a significant role with its unique properties and applications. This article aims to explore the application characteristics of polyurethane resin in gravure compound ink. Firstly, polyurethane resin offers excellent adhesion properties, enabling it to bond effectively to various substrates. Whether it is paper, plastic, or other mater...
Polyurethane(PU) binder play a crucial role in lamination ink formulation, providing important properties and benefits to the final product. Here are some key points highlighting the importance of polyurethane binders in ink formulation: Adhesion and Cohesion: Polyurethane binder enhance the adhesion of inks to various substrates such as paper, plastic, and metal. They help the ink adhere firmly t...
Waterborne polyurethane dispersion (PUD), also known as polyurethane dispersion, refers to polyurethane dispersions that do not contain emulsifiers. It exhibits excellent coating and adhesion properties on high-performance substrates such as wood, cement, metal, plastic, paper, textiles, and rubber, making it widely used in automotive OEM and repair coatings, primers and colored paints, wood and f...
How to choose the formula of gravure printing ink for high-temperature retort-resistant bags? Specifically, the selection of ink connecting materials, the selection of toners and pigments, the selection of special wax powder for ink, etc. 01 Selection of retort bag ink binder(RESIN) There are no more than two types of ink BINDER suitable for gravure on-machine printing: high-temperature-resistant ...
Polyurethane resin is a type of polymer that can function as a binder in film printing inks. Here's how it contributes to the performance of the ink in a film printing application: 1. Adhesion: Polyurethane resin are known for their excellent adhesion properties, which allows the ink to strongly adhere to various film substrates such as polyethylene (PE), polypropylene (PP), and other plastic film...
The liquid part of the ink component is called the binder; the solid component is the color material (pigment or dye); and various additives.The connecting material is a colloidal fluid with a certain viscosity. Its function is first to serve as a carrier for pigments, mixing and connecting solid particles such as powdered pigments. The pigments are evenly dispersed in it, relying on its wetting e...