What is microsphere adhesive?
What is microsphere adhesive?
Microsphere adhesive technology is the process of polymerizing large acrylic spherical particles to be used in the process of formulating pressure-sensitive adhesives (PSA). Microspheres are tiny particles measuring between 10 and 250 microns in diameter.
What adhesive is used on labels?
If you need superior durability or a label that can withstand UV rays and most chemical solvents, acrylic adhesives offer the best adhesion and long-term bonding ability. These adhesives are also very difficult to remove, making acrylic ideal for tamper-evident labels and adhesives. Rubber-Based Adhesives.
What is microsphere technology?
Microsphere Technology is an innovative materials technology company specialising in the coating of microspheres. The core technology of Microsphere Technology is the ability to coat glass and ceramic particles with nanometer thick layers of pigments, dyes, metals or metal oxides.
What is wet glue label?
Wet-Glue Labels are labels that are not coated until the time of application. Printed paper or film substrates are coated with wet glue on the labelling line immediately before application. These labels can be produced also on special substrates like metallised papers or transparent PP.
How are microspheres made?
Microsphere are made from glass, ceramic, carbon or plastic depending on applications. Solid glass microsphere is manufactured by direct burning of glass powders while hollow glass microspheres is produced by adding blowing agent to glass powder.
How do you create a microsphere?
Sols of varying glass compositions (such as aluminosilicate) are usually produced by chemical precipitation method and then the microspheres are formed either by spray drying of the sols or via a solvent evaporation process (Todea et al. 2013).
What is a food safe glue?
An excellent food-safe adhesive to use is Metallocene hot melt glue because it is developed to offer the highest quality bonds for the food and beverage packaging industry. Types of pressure-sensitive adhesive can be used to adhere labels to food, like the stickers applied to fruits and vegetables.
Is super glue an acrylic adhesive?
Cyanoacrylate adhesives are acrylic but are classified as cyanoacrylate or instant adhesives. These are also called super glues or crazy glues. Methylmethacrylate adhesives are a type of acrylic adhesive that may be grouped into an acrylic category or separated out as MMA’s.
How do you formulate microspheres?
The amount of drug encapsulation in the microspheres was determined using the formula E= Qp / Qt×100, where E is the percentage of encapsulation of microspheres; Qp is the product of drug content per g of microspheres and Qt is the yield of microspheres in g.
How many times can you re-apply a microsphere adhesive?
The number of times a label or other product coated with a microsphere adhesive can be re-applied seems as endless as the possible applications for this product-the most repositionable pressure-sensitive adhesive (PSA) developed to date.
What is non-microsphere adhesive technology?
Non-microsphere adhesive technology, on the other hand, flows into full contact with the substrate surface, forming a continuous bonding film which builds up peel strength over time. This makes the substrate harder to remove, and doing so can damage the surface underneath.
What is the difference between microsphere and emulsion adhesives?
The microsphere adhesive holds products firmly in place on most substrates, but it is easily removable and permanently repositionable. Conversely, emulsion adhesives use smaller particles that coalesce into a continuous film that is not repositionable.
What is Microsphere technology?
Microsphere technology makes linerless labels possible and, as it is a water-based adhesive solution, it is easy to integrate into existing water-based coating lines.
