Hot melt rubber based PSAs are manufactured using a process that relies on heat rather than chemicals to do the heavy lifting. The process starts with the rubber-based solid hot melt adhesive, also known as 100% solid adhesive. The solid adhesive heats up, causing it to soften and melt. DynahM rubber-based pressure-sensitive hot melt adhesive designed to flow at high temperatures.
They have an aggressive initial adhesion and excellent adhesion to a variety of difficult surfaces. Rubber hot melt adhesives are typically formulated from a block copolymer such as a styrene-butadiene-styrene (SBS), and optional tackifiers, oils, plasticizers and functional additives. For a long time, acrylic emulsion adhesives dominated the landscape of pressure-sensitive label applications, and packaging decision-makers may no longer wonder whether acrylic adhesives are right for the job. If it seems that hot melt adhesives could be a promising option for your labeling applications, the first step is to find a supplier that offers hot melt adhesive coating, as not all adhesives and manufacturers of printing products have 100 percent solids coating capabilities.
While water-based and hot-melt pressure-sensitive adhesives are designed for tape and label construction, it is important to consider the needs of the final application when determining which technology to choose. The general footprint requirements for hot melts make them the preferred choice for new operations that are, on average, one-quarter the line length of a solvent-based system. Cyanoacrylate adhesive is an acrylic resin in which the main ingredient, cyanoacrylate, is an acrylic monomer that transforms into a plastic state after curing. Applications such as tire labels, direct food contact labels and freezer grade labels often use specialized hot melt adhesives, which offer an economical solution for a wide range of these demanding applications.
DynahM 6094 A high tack removable hot melt pressure sensitive adhesive designed to provide excellent removability from a variety of substrates, including LDPE, HDPE and PP. The coating methods available in a converter often determine the type of pressure-sensitive adhesive for tape and label construction. However, it is important to understand the advantages of technologies and adapt to the market to ensure the desired performance for the end use. Adhesive types respond differently to various printing methods; for example, hot melts work with most forms of printing, but caution is advised when using laser heat fusion printers.
The choice of elastomers based on styrene block copolymer (SBC) technology for tapes and labels has traditionally been divided between solvent and hot melt systems. Similar to natural rubber adhesive, synthetic rubber adhesive alone does not possess any adhesive properties, and must be combined with tackifying resins to create a PSA. DynahM 6089 A medium tack removable hot-melt pressure sensitive adhesive designed to provide excellent removability from a variety of substrates, including LDPE, HDPE, PP, foam boards and thin films. Because of the inherent nature of block copolymers, these rubber-based adhesives tend to have a lower modulus of elasticity than most solvent and emulsion adhesives.
