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Polyurethane adhesives will replace traditional adhesives in the flexible packaging industry
A comparison between polyurethane adhesives and traditional flexible packaging adhesives In the flexible packaging industry, adhesives are the key to determining the performance of composite materials. Compared with traditional adhesives (such as one-component pressure-sensitive adhesives, solvent-based rubber adhesives, etc.), polyurethane adhesives have become the undisputed first choice for modern flexible packaging due to their outstanding comprehensive performance. Their advantages are...
Analysis of the Application and Characteristics of Polyurethane Adhesives for Flexible Packaging
In the packaging industry, flexible packaging polyurethane adhesives play a crucial role. This adhesive is widely used in the production of various flexible packaging materials due to its excellent bonding performance and chemical stability. Application Scenarios of Polyurethane Adhesives Flexible packaging polyurethane adhesives are mainly used for bonding between substrates such as plastic films, paper, and aluminum foil. In the packaging process of industries such as food, medicine and...
Polyurethane adhesives will dominate the field of flexible packaging for pharmaceuticals
Due to the wide variety of materials in composite pharmaceutical packaging, enterprises have turned to two-component polyurethane adhesives for the compounding of polar plastics and non-polar materials. At present, pressure-sensitive adhesives used in flexible packaging composite materials for pharmaceuticals have been replaced by polyurethane adhesives, and ester-soluble polyurethane adhesives are mainly used. This type of adhesive is a two-component ester-soluble adhesive. Its main...
Research progress of Waterborne polyurethane adhesives at home and abroad
Since the beginning of the 21st century, the application fields of PU have been continuously expanding. Especially with the increasingly high environmental protection requirements worldwide, the development pace of waterborne polyurethane industry has been further accelerated. After decades of development, PU products have approached or reached the level of solvent-based products in fields such as automotive coatings and adhesives, and the production of raw materials has achieved...
Analysis of the Global Market Division of Polyurethane Adhesives
The global polyurethane adhesive market presents a wide and diverse distribution pattern, and its demand is closely related to the economic development level, industrialization process and terminal industry focus of each region. Geographically speaking, the Asia-Pacific region is currently the largest and fastest-growing market in the world, holding a dominant position. The strong growth in this region is mainly attributed to the vigorous development of manufacturing in China, India and...
Discussion on the worldwide situation of polyurethane adhesive
Polyurethane adhesive, as a high-performance synthetic adhesive, occupies a decisive position in the world. Its unique chemical structure endows it with excellent properties, including high bonding strength, excellent impact resistance, wear resistance, good flexibility and low temperature resistance. These characteristics enable it to bond a variety of materials, such as metal, plastic, wood, fabric and leather, so it has been widely used in many industrial fields. From the perspective of...
Polyurethane adhesives, due to their excellent bonding performance, flexibility and fatigue resistance, have become an indispensable and important part of China's adhesive industry. At present, its development presents the following several notable characteristics: Current development status 1.The industrial scale continues to expand: China has become the world's largest producer and consumer of polyurethane adhesives. Driven by the demand in traditional and emerging fields such as...
The characteristics of polyurethane adhesives
Polyurethane adhesives stand out among numerous adhesives with their outstanding bonding performance. Its unique molecular structure and chemical properties endow it with excellent elasticity, water resistance, chemical corrosion resistance and good low-temperature resistance. In addition, polyurethane adhesives, due to the active groups in their chemical structure, have the ability to widely bond various materials and are a type of highly versatile adhesive. Polyurethane adhesives maintain...
The value and future prospects of polyurethane resin
1. The core value of polyurethane resin in the field of coatings Polyurethane resin is widely used in industrial coatings, architectural coatings, automotive coatings and other fields due to its excellent weather resistance, flexibility and adhesion. Compared with traditional resins, polyurethane resins can achieve performance customization through molecular structure design to meet the needs of different scenarios. For instance, in high-temperature or high-humidity environments, polyurethane...
The development trends and technological impetus of the water-based industry
The market demand for water-based adhesives is growing In recent years, the water-based adhesive industry has shown a vigorous development trend. Whether it is the continuous expansion of the market scale, the continuous optimization of the product structure, or the increasingly strong market demand, all these demonstrate the strong growth of this industry. China has become the world's largest consumer market for water-based adhesives, accounting for over 30% of the global market share, and its...
Key points and precautions for the use of polyurethane adhesives
To ensure the full performance of polyurethane adhesives and their safe and effective use, the following points need to be particularly noted: 1. Surface treatment is crucial: The cleanliness and dryness of the surface of the adherend directly affect the final bonding effect. Diversified and thorough removal of contaminants such as oil stains, dust, moisture and rust on the surface. When necessary, appropriate solvents can be used for cleaning or physical grinding treatment can be carried out...
The basic characteristics of polyurethane ink binders
Polyurethane ink binder is a key component of the ink system, and its performance directly determines the final quality and applicability of the ink. It plays multiple core roles in ink, and its specific functions can be summarized as follows: 1. Bearing and connection function (core function) Binder, as the name suggests, its most fundamental function is to serve as the "carrier" and "connector" of pigments. It evenly encapsulates and disperses tiny, solid powder-like pigment particles,...
The development of polyurethane adhesives
The development history of polyurethane adhesives is a history of continuous innovation, adaptation to demands and expansion of application boundaries. Its story began in the 1930s. With the foundation of polyurethane chemistry, scientists successfully synthesized polyurethane materials. However, it was not until the 1950s that early forms of polyurethane adhesives with practical value emerged. During this period, people mainly utilized the activity of isocyanates to develop...
The prominent role of polyurethane adhesives in flexible packaging
In the production of flexible packaging composite materials (such as food and medicine packaging bags), adhesives are the key to determining the packaging performance. Compared with traditional adhesives (such as solvent-based rubber adhesives, ester-soluble acrylic adhesives, etc.), polyurethane adhesives have taken the leading position due to their outstanding comprehensive performance. The main differences and outstanding advantages of polyurethane: 1. Outstanding bonding...
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...
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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.