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Polyurethane adhesives have a remarkable effect on flexible packaging
Polyurethane adhesives can be regarded as the "bonding master" in modern industry, especially in the field of flexible packaging. With its unique and comprehensive excellent performance, it has become the top choice for producing high-performance and high-appearation-level packaging materials. Outstanding performance and core advantages in flexible packaging: 1. The broad-spectrum adhesion that can bond everything: This is the most prominent advantage of polyurethane adhesives. Whether it...
The ten significant advantages of polyurethane adhesives
Polyurethane adhesives, as a high-performance adhesive, possess numerous outstanding properties due to their unique chemical structure and are widely used in industrial production and the flexible packaging industry. The following are its top ten outstanding advantages: 1. Outstanding bonding strength and toughness: Polyurethane adhesives not only achieve extremely high bonding strength, but also have both rigid and flexible segments in their molecular chains. This enables the adhesive layer...
Polyurethane adhesive - A good helper for flexible packaging
In our daily lives, from the fragrant snack bag at hand to the dazzling array of sauce packets on supermarket shelves, these lightweight yet sturdy soft packages have long been everywhere. The key "hero" that enables these packages to be laminated layer by layer, moisture-proof, fragrant and withstand the jolts of transportation is a special material called flexible packaging-specific polyurethane adhesive. It is like a "super adhesive" in the packaging industry, quietly safeguarding the...
A comprehensive introduction to polyurethane
Overview of Polyurethane Polyurethane, the full name of which is polyurethane, is a type of high-molecular material made by the addition polymerization reaction of isocyanate and polyol. Its name is derived from the carbamate bond in its molecular structure. The uniqueness of this material lies in the fact that by adjusting the type, proportion and synthesis process of raw materials, products with various properties can be prepared, ranging from soft foams to hard plastics, with a wide range...
The golden autumn brings refreshing coolness to welcome the birthday, and the full moon gathers deep affection in people's hearts. To celebrate the 76th anniversary of the founding of the People's Republic of China and welcome the traditional Chinese festival - the Mid-Autumn Festival, as well as to enrich the employees' cultural life in their spare time and enhance team cohesion, on September 27th, Xin Hui Company grandly held a series of theme activities titled "Praising the Motherland and...
In the ever-changing flexible packaging industry, the performance and safety of materials are of vital importance. From the fragrant food packaging in your hand to the safely sealed aluminum foil for medicines in pharmacies, high-performance polyurethane adhesives and resins are indispensable behind them. Since its establishment in 1998, Guangdong Xinhui Chemical Co., Ltd. has been deeply engaged in this field. With the craftsmanship and innovation of a national high-tech enterprise, it is...
Key tips for using polyurethane adhesives in flexible packaging
In the flexible packaging lamination process, the application of polyurethane adhesives is of vital importance, directly affecting the performance and appearance of the final product. To ensure high-quality compounding, the following key techniques need to be mastered: 1. Substrate pretreatment is the foundation Before lamination, it is essential to ensure that the surface of the substrate film (such as BOPP, PET, PE, aluminum foil, etc.) is clean, dry, and has sufficient surface tension. It...
High-temperature resistant polyurethane adhesives are a key material in the flexible packaging industry. Through special chemical structure design, they significantly enhance the heat resistance of traditional polyurethane adhesives while maintaining their excellent performance, to meet increasingly demanding packaging processing and usage conditions. Its main advantages are reflected in the following aspects: 1. Outstanding heat resistance: This is its most core advantage. It can withstand...
Why are more and more packaging bags choosing polyurethane adhesives?
Polyurethane adhesives have become the most widely used bonding materials in the field of flexible packaging mainly due to their unique chemical structure and properties, which perfectly match the complex requirements of flexible packaging. The following are several core reasons: 1. Excellent bonding universality Flexible packaging is usually composed of a variety of film materials with different properties, such as non-polar and low surface energy plastics like polyethylene and...
Which packaging bags can be bonded with polyurethane adhesive?
Polyurethane adhesives are widely used in the field of flexible packaging due to their excellent performance, almost covering the vast majority of common composite packaging bags in daily life. The following are the main usage scenarios and packaging types: 1. Packaging with high requirements for resistance to contents This is the most core application field of polyurethane adhesives. Many food and daily chemical products themselves are corrosive or contain easily permeable components,...
Introduction to Four Types of functional Polyurethane Adhesive
1. High-temperature resistant polyurethane adhesive This type of adhesive is specially designed for operation in high-temperature environments that conventional polyurethane cannot withstand. Its core feature lies in its excellent thermal stability. Main features Excellent thermal stability: Its key indicator is that it can still maintain sufficient bonding strength and structural integrity at high temperatures. The long-term service temperature usually reaches above 150°C, and specially...
The significant role of polyurethane adhesives in the field of flexible packaging.
Polyurethane adhesives are indispensable key materials in the modern flexible packaging industry, and their performance directly determines the quality, safety and functionality of packaging bags. Its role in flexible packaging is mainly reflected in the following aspects: 1. Achieve multi-layer compounding to build high-performance barriers The core advantage of flexible packaging lies in integrating multiple properties by laminating films of different materials (such as polyethylene (PE),...
The mutual cooperation between polyurethane ink binders and flexible packaging
Polyurethane ink binder is one of the most crucial and widely used materials in the modern flexible packaging industry. As the "skeleton" and "soul" of the ink, it plays a decisive role in the quality, safety and functionality of the entire packaging printed matter. Its core functions are mainly reflected in the following aspects: 1. Excellent adhesion and wide applicability There are various types of base materials for flexible packaging, including polyethylene (PE), polypropylene (BOPP,...
Characteristics and applications of polyurethane ink binders
Printing ink is a mixture formed by the uniform dispersion of components such as resin binder, pigment (filler), additives and solvents. Resin binder, as the "heart" of ink, mainly plays the role of dispersing pigments and connecting substrates. Polyurethane resin as an ink binder has the following advantages: (1)Flexibility In the field of flexible packaging printing, as the printing substrate is flexible materials such as PE, OPP, and PET, the ink film should not be too brittle after...
Can polyurethane adhesive be used for beverage packaging bags?
To sum up, the conclusion is: Yes, and polyurethane adhesives are one of the most widely used and outstanding adhesives in the field of high-performance beverage packaging at present. The main reason lies in the fact that polyurethane adhesives can perfectly meet the strict requirements of beverage packaging for safety, barrier properties and durability. The specific analysis is as follows: 1. Outstanding composite strength and flexibility: Beverage packaging bags typically adopt a...
Application of Polyurethane Adhesives in Lithium batteries and related matters
Polyurethane adhesives play a significant role in lithium battery manufacturing due to their unique properties, mainly used for the packaging and structural bonding of battery cells. 1. Main applications (1)Cell packaging (pouch battery) : This is its most core application. Polyurethane adhesives (usually in the form of heat-sealing films) are used to bond the multi-layer structures (nylon, aluminum foil, polypropylene) of aluminum-plastic encapsulation films. It must provide extremely high...
Which flexible packaging can use polyurethane adhesives?
Polyurethane adhesives, due to their outstanding performance, are one of the most widely used and important types of adhesives in the field of flexible packaging lamination. It mainly forms a high-strength and high-toughness chemical structure through the reaction of two components (the main agent and the curing agent), thereby achieving a firm bond between films of different materials. The following are the main types of flexible packaging applicable to polyurethane adhesives and their...
Why is the flexible packaging industry more inclined to choose polyurethane adhesives?
The flexible packaging industry is increasingly favting polyurethane adhesives (PU adhesives), mainly because they can fully meet the comprehensive requirements of modern packaging for performance, safety, efficiency and environmental protection, and are an ideal choice to replace traditional solvent-based adhesives and single-performance adhesives. Its core advantages are reflected in the following aspects: First of all, the outstanding composite performance is the fundamental basis for the...
Introduction to Polyurethane Adhesives for Flexible Packaging
Polyurethane adhesives for flexible packaging are key components used in flexible composite packaging materials for food, daily chemicals, pharmaceuticals and other products. Its main function is to firmly bond two or more films of different properties (such as BOPP, PET, PA, AL, CPP, PE, etc.) together to form a composite structure with various excellent properties, so as to meet the requirements for barrier properties, weather resistance, aesthetics and mechanical strength. At present, the...
Polyurethane adhesive: The Invisible Guardian of the flexible packaging industry
In modern life, flexible packaging, with its lightweight, durable and multi-functional features, is widely used in numerous fields such as food, medicine and daily chemicals. Behind this seemingly simple film composite structure, polyurethane adhesives play an indispensable role, serving as a key guarantee for the performance and safety of flexible packaging. Flexible packaging is usually composed of multiple layers of films made of different materials, such as polyethylene, polypropylene,...
The Application of Polyurethane Adhesives in Flexible Packaging
Polyurethane adhesives are indispensable key materials in the modern flexible packaging industry. Their outstanding comprehensive performance makes them the preferred bonding solution for composite film packaging. It creates packaging materials with multiple functions by firmly laminating different plastic films (such as BOPP, PET, PE, CPP, aluminum foil, galvanized film, etc.) together, and is widely used in many fields such as food, medicine, and daily chemicals. 1. Core advantages and...
The application of polyurethane resin in ink
Ink with polyurethane as the main resin binder is called polyurethane ink. The molecular structures of different types of polyurethane resins vary, and thus the types of polyurethane inks prepared from them also differ. At present, polyurethane inks can be classified into several types based on their resin structure composition, solvents and curing principles, such as one-component volatile polyurethane inks, two-component reactive polyurethane inks, UV-curable polyurethane inks and water-based...
An explanation of the role and application of polyurethane adhesives in ink printing
Polyurethane adhesives play a crucial role in the field of ink printing. Their main function is to serve as binders (or bonding materials), and they are the core components that determine the performance of inks. Main Functions: 1. Excellent adhesion: The polyurethane molecular chain contains highly polar urethane bonds, which can form a strong adhesive force with various polar (such as plastic films, metal foils) and non-polar substrates (such as polyolefins treated with corona), ensuring...
Precautions for the use of polyurethane adhesives
Polyurethane adhesives are widely used in multiple fields due to their excellent bonding performance, flexibility and fatigue resistance. To ensure its optimal performance and guarantee operational safety, the following key points should be noted during use: 1. Surface treatment is the core The surface treatment of the materials to be bonded is the most crucial link that determines the success or failure of the bonding. First of all, it is necessary to thoroughly remove contaminants such as...
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.