Each type of adhesive has its unique properties, making it suitable for different applications. For example, acrylic adhesives offer a range of viscosities, along with transparency, weather resistance, and heat resistance. Silicone adhesives perform well across a wide temperature range and are used in applications like screen protectors for their air-releasing properties. Compared to silicone adhesives, polyurethane adhesives are more economical and do not have silicone issues, known for their re-peelability and short-term applications such as POP labels. Rubber-based adhesives provide good adhesion on various substrates but are limited due to their lower weather and heat resistance, typically used in packaging tapes.
Adhesive technology plays a key role in the performance of label materials and double-sided tapes. The common types of adhesives used in these applications include acrylic adhesives, silicone adhesives, polyurethane adhesives, and rubber-based adhesives.
Acrylic Adhesives (Arcylic): Made from acrylic polymers, these adhesives are known for their design flexibility, ranging from low to high viscosity. They are transparent and exhibit excellent weather and heat resistance. Their versatility is demonstrated in applications ranging from re-peelable films needed in manufacturing processes to strong adhesive tapes for bonding electronic components. Some acrylic adhesives even have eco-friendly properties, with a biomass label.
Silicone Adhesives (Sillicon): Made from polymers with a silicone-oxygen backbone, silicone adhesives adhere well to silicone and fluororesins and are effective over a wide temperature range. They have excellent chemical and water resistance. Silicone micro-adhesive adhesives are particularly suitable for applications needing air release, such as attaching protective films to LCDs without trapping air bubbles. Their significant temperature recovery ability makes them very suitable for different operating environments.
Polyurethane Adhesives (PU): Polyurethane adhesives are made from polyurethane produced by condensing compounds containing isocyanates and hydroxyl groups. They have excellent air-releasing properties during bonding and demonstrate superior re-peelability without leaving adhesive residues. Compared to silicone adhesives, polyurethane adhesives are cost-effective and do not produce siloxane issues. They are the first choice for short-term applications (such as POP labels and protective films), providing low odor and low skin irritation.
Rubber-Based Adhesives (Rubber): These adhesives provide good adhesion and bonding performance on various substrates. However, compared to other adhesives, their weather and heat resistance are inferior, which limits their use, typically in packaging tapes. Choosing the right adhesive can not only improve the functionality and efficiency of labels and tapes but also reduce material costs and environmental impact, aligning with broader industry and sustainability goals.
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When it comes to considering the suitable adhesive, we often look not only at the type and the mechanical properties; but also the product application, the compaitabilities with the facestock etc takes a significant role as well. For example, we are currently collaborate with OEM clients on delievering.
In optical applications, UV Curable PSA, Arcylic base heat resistant OCA etc
In label/tapes application , In corresponds to the UK/ EU Plastic Pact and significant demands in the sustainable product line; we are working along with our customers to bring out a recycle/ BioMASS mono-material adhersive solution,
Overall, adhesives play a key role in the development and application of label materials and double-sided tapes. From acrylic to silicone, polyurethane to rubber-based adhesives, each type of adhesive has its unique properties, making it suitable for specific applications. Choosing the appropriate adhesive not only enhances the performance and efficiency of products but also reduces material costs and environmental impact, thereby aligning with broader industry standards and sustainability goals. The continued innovation and customized solutions in adhesive technology will ensure that this field keeps pace with the growing market demands and challenges.
C&T has extensive knowledge and experience in handling various adhesives and we work along with the industry expert to deliever product combinations based on end-user needs. Our collaborate with OEM factories in markets such as Taiwan, China, Malaysia, Thailand, and Vietnam help them deliver a suitable adhersive solution to clients across the globe.
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