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An overview of the market situation of polyurethane adhesives in China
Polyurethane adhesives occupy a significant position in the Chinese adhesive market due to their excellent bonding performance, flexibility, fatigue resistance and good adaptability to different materials. At present, it has become one of the adhesive categories with the largest market share and the widest application fields. Market Share and Scale From the perspective of the overall market structure, polyurethane adhesives rank among the top in terms of both sales volume and revenue share...
An overview of the functional characteristics of polyurethane adhesives
Polyurethane adhesives are a type of high-performance and widely used high-molecular bonding materials. Their core functional characteristics stem from their unique chemical structure and adjustability. 1. Outstanding bonding performance and wide applicability This is the most prominent feature of polyurethane adhesives. Its molecular chain contains highly polar urethane bonds, which can generate powerful van der Waals forces and hydrogen bond interactions with the surfaces of various...
Suitable inks and packaging for polyurethane ink binders
Polyurethane (PU) ink binder is a kind of polymer material with excellent performance. Because of its excellent adhesion, wear resistance, flexibility and chemical resistance, it has been widely used in various ink systems and packaging fields. 1. Applicable ink types (1)Polyurethane binders mainly react with other resins (such as alkyd resins) or curing agents to form dense paint films, which are mainly used in the following types of inks Gravure printing ink and flexographic printing...
Market Demand Analysis of Polyurethane Adhesives for Flexible Packaging
(1) The market demand for polyurethane adhesives for flexible packaging in China is mainly influenced by industries such as food and beverage, pharmaceuticals, and daily chemicals. As consumers' demands for the safety, environmental friendliness and functionality of packaged products continue to rise, the demand for polyurethane adhesives in these industries keeps increasing. The food and beverage industry has particularly strict requirements for adhesives. They not only need to ensure food...
Application films and related matters of polyurethane adhesives
Polyurethane adhesives are widely used in the field of film lamination due to their excellent performance. The following are the main film substrates it is applicable to and the precautions for use. 1. Applicable film substrates (1)Polyurethane adhesives have excellent bonding effects on a variety of polar and non-polar films and can mainly be classified into the following categories: (2)Plastic film: This is the most important application field. (3)Polyester films, such as PET, feature...
Five aspects to introduce polyurethane adhesives
Polyurethane adhesives are a type of high-performance and widely applied high-molecular bonding materials. Their core features are mainly reflected in the following five aspects: 1. Excellent bonding performance and wide applicability The most prominent advantage of polyurethane adhesives is their excellent bonding ability and wide applicability. Its molecular chain contains highly polar carbamate groups (-NH-COO-), which can form powerful van der Waals forces, hydrogen bonds, and even...
The inseparable connection between polyurethane adhesives and the flexible packaging industry.
Core correlation: Performance matching and industrial dependence Polyurethane adhesives, especially the two-component polyurethane type, have become an indispensable "blood" in the modern flexible packaging industry. Its dominant position stems from the high degree of alignment between its outstanding performance and the strict requirements of flexible packaging. 1. Performance advantage: Meets diverse demands Flexible packaging materials are often composed of different base materials such...
How much do you know about polyurethane adhesives?
1. What is polyurethane adhesive? Polyurethane adhesives refer to adhesives that contain urethane groups or isocyanate groups in their molecular chains. According to the reaction composition, they can be classified into polyisocyanate adhesives, polyurethane adhesives containing isocyanate groups, hydroxyl-containing polyurethane adhesives and polyurethane resin adhesives. According to their uses and characteristics, they can be classified into general-purpose adhesives, food packaging...
Usage tips for polyurethane adhesives
Polyurethane adhesives have excellent performance and are widely used. To fully leverage its performance, it is crucial to master the following usage skills. First, surface treatment is the foundation This is the most crucial step, which directly affects the final bonding strength. Make sure that the surface of the objects to be bonded is clean, dry and free of oil stains. For materials with high surface energy such as metals and glass, it is recommended to roughen them with sandpaper to...
The effect of polyurethane ink binder is demonstrated.
Polyurethane ink binder, as a core component of high-performance ink, its effect is mainly reflected in printing adaptability, film-forming performance and the final quality of printed matter. Through its unique chemical structure, it endows ink with a series of outstanding properties. Firstly, it stands out in terms of printing adaptability and adhesion. Polyurethane binders exhibit excellent adhesion to a variety of substrates, such as treated polyethylene, polypropylene films, polyester...
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...
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...
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...
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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.