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The Secret to Non-Peeling Labels: How Adhesives Determine Label Lifespan In everyday packaging, label peeling is a common yet troublesome problem – not only affecting product appearance but also potentially raising consumer doubts about quality. But have you ever considered that a crucial science lies behind this: adhesives? Adhesives: The "Invisible Guardians" of Labels Adhesives a...
One component of self-adhesive label materials is the adhesive, also known as glue. The adhesive determines the label's stickiness and applicable scenarios. The adhesive is also the bonding layer between the label and the object it's applied to; its stickiness, temperature resistance, and magnetic adhesion directly affect the label's adhesion effect. It can be divided into the following categories...
Acrylic Emulsion Acrylic emulsion is a milky white or nearly transparent viscous liquid. It is an emulsion copolymerized from pure acrylate monomers, characterized by small particle size, versatility, and excellent performance. Features: △ Excellent gloss and transparency △ Water and weather resistance △ Alkali and stain resistance △ Good adhesion △ Non-toxic, non-irritating, harmless to huma...
Emulsion polymerization, developed in the last century, has seen its production volume, quality, and variety of products increase year by year due to its unique advantages, with increasingly rational production processes. Furthermore, emulsion polymerization technology is constantly innovating. Besides conventional emulsion polymerization, various polymerization technologies have emerged, such as ...
I. Why Must Cigarette Packaging Printing Shift to Water-Based Acrylic Emulsions? Traditional solvent-based inks contain large amounts of volatile organic compounds (VOCs) such as benzene and ketones, which not only harm the health of operators but also easily leave residues on packaging, affecting tobacco safety. Water-based acrylic emulsions, using water as the dispersion medium, have extremely l...
Sometimes, a slight ammonia smell is detected in water-based acrylic emulsions, which confuses many people: is this normal or is there a problem? First, we need to clarify that acrylic emulsions themselves do not produce an ammonia smell. However, during their production, ammonia-containing additives may be added to adjust their performance or improve their stability. These additives gra...
Acrylic resins are an indispensable and commonly used resin in water-based coatings. They are widely used in metal coatings, ABS and PC coatings, and glass coatings requiring hardness, especially solid acrylic resins. There are many types of solid acrylic resins. Some solid acrylic resins can be used to produce water-based paints, including the currently popular UV-cured coatings and high-sol...
01 Polyurethane The structure of polyurethane is formed by the reaction of polyisocyanates (e.g., diisocyanate OCN-R-NCO) and polyols (e.g., diol HO-R-OH), where urethane segments are repeating structural units. Polyurethane structures have structures similar to amide and ester groups; therefore, the chemical and physical properties of polyurethane are between those of polyamides and polyesters. S...
II. Types of Acrylic Resins (1) Classification by Thermal Behavior (Film-forming Characteristics): ① Thermosetting Acrylic Resins: Based on acrylic monomers as their fundamental components, these resins undergo further reactions—either among their own functional groups or with active functional groups in other resin systems (such as amino resins, epoxy resins, polyurethanes, etc.)—during the heati...
Water-based acrylic emulsion is a polymeric emulsion material that utilizes water as its dispersion medium. It is produced through an emulsion polymerization reaction involving vinyl monomers, primarily acrylic esters. Key Features: Environmental Friendliness: With water serving as the dispersion medium, it features extremely low levels of Volatile Organic Compounds (VOCs); it is no...
In the coatings industry, pure acrylic emulsion and acrylic emulsion (typically meaning styrene-acrylic) are two common waterborne binders. Their main differences lie in composition, performance, and application. 1. Composition Pure acrylic emulsion: Made from 100% acrylic monomers (e.g., butyl acrylate, methyl methacrylate). Acrylic emulsion (styrene-acrylic): Copolymer of styrene and acrylic mon...
Many people find themselves torn when selecting materials: since both are used for coatings, which one offers greater durability? Which is the more suitable choice for waterproofing during renovation? In reality, neither possesses an absolute advantage over the other; the key lies in the specific requirements of the application scenario. Today, we will clarify the core distinctions between the two...
Classified by Raw Materials Vinyl Acetate Latex Paint Vinyl acetate latex paint refers to a category of latex coatings produced from polyvinyl acetate emulsion, combined with pigments, fillers, and various additives. This type of coating features strong adhesion, good flow properties, and low production costs. However, it is characterized by high brittleness, necessitating the addition of external...
Water-based varnishes are classified as eco-friendly products; the primary solvents used in their formulation are water and various alcohols, ensuring that their volatile components do not pollute the environment. The development of water-based varnishes has gained momentum in recent years, driven by the growing public demand for environmental protection. The process of applying varnish essentiall...
In flexographic printing, the performance of waterborne polymers and resin systems directly affects ink stability, color consistency, adhesion, and production efficiency. Traditional water-based inks may cause anilox roller clogging during long production runs, leading to unstable ink transfer and interrupted printing. In comparison, UV flexographic inks cure instantly under UV light, helping redu...
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Sinograce Chemical is professional technical enterprise providing solutions of surface materials and manufacturing of raw materials. Sinograce Chemical Company is composed of R&D center, Manufacture center, Quality control department, Market center and International trade department. We have been dedicating to research on excellent paint/coating, adhesive for over 15 years. And now still conti...
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