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: 1. Permanent Adhesives: These have strong adhesion and are not easily detached after application, suitable for long-term fixed applications. Examples include labels for electronic products, automotive parts, and outdoor signage. However, once applied and removed, they may leave residue, damage the object, or tear the label. 2. Removable Adhesives: These have moderate stickiness and leave no residue when removed. They are generally suitable for temporary labeling, such as refrigerator magnets, sticky notes, product promotional labels, and seasonal promotional labels. They can be reused multiple times. 3. Special Function Adhesives: These are suitable for labeling at low temperatures, also called low-temperature adhesives. They are generally suitable for refrigerated and frozen foods such as ice cream and beverages. Even at -40 degrees Celsius, the adhesive properties of the adhesive remain excellent, ensuring a strong bond. 4. High-temperature adhesive, also known as high-temperature resistant adhesive, has strong temperature resistance, suitable for products requiring temperatures above 100 degrees Celsius, and industrial equipment labels such as those on rice cookers and ovens. It's also used on automotive motors and for high-temperature labels on circuit boards. 5. Waterproof adhesive. This type of adhesive is water and oil resistant and is generally used for labels in humid environments such as beverage bottles and shower gel bottles. 6. Medical adhesive. This type of adhesive is hypoallergenic and non-toxic, generally used for labels on medical devices and pharmaceuticals, and must meet medical-grade standards. There are actually many other types of adhesives, such as tire adhesive, oil-based adhesive, mesh adhesive, and additive adhesives, etc. The adhesives used in self-adhesive label materials can be broadly categorized into the above types. Sinograce Chemical offers a variety of self-adhesive labels for different applications, including water-based adhesives and hot melt adhesives. Welcome to contact us for consultation.  Room 1013, Building A5, Financial Port Center, Yangzijiang Road, Baohe District, Hefei City， Anhui province, China  Factory Address: Feidong County Industrial Park, Hefei City, Anhui Province, China  +86 0551 63459511 sales@sinogracechem.com  vivisinograce@outlook.com  +8615755193346  http://www.sinogracechem.com

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 are more than just bonding agents; they are the precise bridge between the label and the packaging. An excellent adhesive formula needs to balance multiple characteristics: ▷ Initial tack: Ensuring immediate label adhesion ▷ Final tack: Maintaining firmness over time ▷ Environmental adaptability: Coping with temperature and humidity changes ▷ Substrate compatibility: Compatible with different packaging materials Sinograce Chemical's Scientific Solutions At Sinograce Chemical, we understand that every product has its unique "temperament." 1. Material Science Analysis: We conduct surface energy analysis of common packaging materials (plastics, glass, metals, etc.) and develop specialized adhesive systems for different materials. 2. Environmental Simulation Testing: Through rigorous temperature and humidity cycling tests, freezing tests, and aging tests, we ensure that labels remain intact in various extreme environments. 3. Application Scenario Adaptation: We adjust the flexibility and durability of the adhesive for different application scenarios, such as refrigerated foods, daily chemical products, and outdoor equipment. Labels may be small, but the science behind them is significant. Choosing Sinograce Chemical means choosing a scientific dedication to detail. Let your products always maintain a perfect image, starting with a non-peeling label. In the highly competitive retail market, every detail of product packaging influences consumer purchasing decisions. A peeling label can make your product look lackluster on the shelf. Today, we will delve into the technology behind adhesive formulas, revealing how to make labels "stick" under various challenges. Limitations of Traditional Adhesives Traditional adhesives often use a "one-size-fits-all" formula, making them unable to cope with: ▷ Tension on curved bottle surfaces ▷ Shrinkage in refrigerated environments ▷ Vibrations during long-distance transportation ▷ Temperature and humidity fluctuations due to seasonal changes We don't believe in "universal adhesives," only in precise matching: 1. Smart Responsive Adhesives For applications with significant temperature variations, we use temperature-responsive polymer adhesives. These adhesives maintain flexibility at low temperatures and increase cohesive strength at high temperatures, perfectly adapting to the entire process from cold chain to retail shelves. 2. Microstructure Bonding Technology To address different usage environments and bonding surfaces, we prioritize adhesives with a microstructure bonding layer. This structure significantly increases the contact points ...

Let's learn about the characteristics of water-based acrylic emulsion! 1. Excellent Adhesion The polymer structure of water-based acrylic emulsion facilitates the flow and wetting of molecular chains on the substrate surface, resulting in close contact between the coating and the substrate molecules, achieving high adhesion. 2. High Pigment and Filler Loading Capacity, Significantly Reducing Costs Water-based acrylic emulsion has excellent filling properties, and the total solid content of the coating formula can reach 60%. The ratio of resin to filler can reach 1:2, significantly reducing the cost of water-based wood paint formulations and application. 3. Zero VOC, Safe and Environmentally Friendly Water-based acrylic emulsion itself does not contain VOCs and can form a film at room temperature without the need for film-forming additives. Coatings using this formulation can have zero VOC content. 4. Excellent Water Resistance Water-based acrylic emulsion does not contain the surfactants used in ordinary acrylic emulsions and has specially designed hydrophobic groups. Therefore, water-based acrylic emulsion has excellent moisture resistance, preventing water molecules from penetrating the substrate after the paint film dries, achieving waterproof and moisture-proof effects. 5. Excellent Weather Resistance The molecular structure of water-based acrylic emulsion uses UV-stable monomer structures, and the emulsion is specially designed to allow TIO2 to be fully and evenly dispersed in the emulsion, reducing the impact of ultraviolet rays on the emulsion and effectively protecting the substrate. 6. Excellent Pigment Dispersibility Water-based acrylic emulsion has good compatibility with various water-based color pastes, maximizing the function of fillers and pigments, resulting in vibrant coating colors. Room 1013, Building A5, Financial Port Center, Yangzijiang Road, Baohe District, Hefei City， Anhui province, China Factory Address: Feidong County Industrial Park, Hefei City, Anhui Province, China +86 0551 63459511 sales@sinogracechem.com vivisinograce@outlook.com +8615755193346 http://www.sinogracechem.com

Polyurethane materials are a general term for a class of macromolecular compounds that have urethane structures in their molecular structure. They are usually prepared by the polyaddition reaction of diisocyanates and polyols. Polyurethane polymers possess both polar functional groups that allow for physical cross-linking and non-polar and flexible chain segments. When used properly, these polar functional groups can also undergo further chemical cross-linking. These molecular characteristics give polyurethane materials high strength, toughness, and solvent resistance. As a high-strength, weather-resistant, and highly adhesive material, polyurethane has been widely used in the coatings field. Based on the type of isocyanate used to prepare the polyurethane, polyurethane emulsions and corresponding paints can be divided into two main categories: aliphatic and aromatic. Aliphatic paint films have excellent weather resistance and anti-yellowing properties; aromatic water-based polyurethanes are mostly used for interior decorative paints. According to the size of the particles obtained during polymerization, there are two types: polyurethane emulsions and polyurethane dispersions. Water-based polyurethane dispersions use a unique process to disperse polyurethane particles in water, thus achieving film formation with water as the carrier. Similar to other emulsion film-forming mechanisms, the film-forming effect depends on the ability of the polymer molecules to interpenetrate between the particles. To increase penetration, on the one hand, the polyurethane molecular chains must be sufficiently flexible and have good fluidity; on the other hand, the emulsion particles should be as small as possible to increase the contact area between the particles and reduce the movement distance of the polymer molecules. Water-based polyurethane dispersions usually have nano-sized particles, appearing translucent or even completely transparent, and are one of the best water-based paint base materials. Water-based polyurethane dispersions are sometimes called nano-emulsions to distinguish them from ordinary emulsions, which have a white appearance. Room 1013, Building A5, Financial Port Center, Yangzijiang Road, Baohe District, Hefei City， Anhui province, China +86 0551 63459511 sales@sinogracechem.com vivisinograce@outlook.com +8615755193346 http://www.sinogracechem.com