Structure of tape and characteristics of main adhesive categories

As a commonly used tool material, the internal structure and adhesive properties of tape are crucial for its effectiveness. This article will provide a detailed introduction to the structure of tape, as well as the main types and characteristics of adhesives, to help readers better understand and use such products. The structure of tape usually consists of the following parts: backing: This is the basic part of tape, which can be made of paper, plastic film, or other special materials. For example, fiberglass cloth is often used in high-temperature resistant situations; Cotton or non-woven fabrics may have better ink absorption and breathability. Adhesive: This is a substance that enables adhesive tape to adhere to the surface of an object. According to application requirements and environmental conditions, different adhesive formulas can be selected. For example, the advantage of hot melt adhesive is its rapid solidification and easy control of coating thickness, making it suitable for automated bonding processes in industrial production; Solvent based adhesives dry faster at room temperature, but the issue of volatile organic compounds (VOCs) emissions needs to be considered. Primer: In some cases, to improve the adhesion of the tape to a specific material, a layer of primer is pre applied to the surface. Primer can enhance the chemical bonding between interfaces, thereby enhancing the reliability of the entire system. Release Liner: When the tape is not immediately used, it will be stored separately from a thin layer of paper or plastic, which is called a “release liner”. This layer of material keeps the tape inactive before use and helps prevent the tape from sticking to each other. Main adhesive categories and their characteristics (1) Water soluble adhesive characteristics: easy to wash, environmentally friendly, but moisture can affect its strength and durability. Scope of application: Temporary fixed occasions such as office use of transparent tape. （2） Hot melt adhesive characteristics: fast curing speed, suitable for high-speed automated production, but sensitive to temperature. Scope of application: Packaging industry, label printing and other fields. （3） Characteristics of solvent based adhesive: Short drying time, suitable for various materials, but containing VOCs may cause pollution. Scope of application: Automotive interior assembly, electronic product assembly and other industries. （4） Lotion glue characteristics: low cost, good adhesion to a variety of materials, but will reduce performance in wet environments. Scope of application: Ordinary household sealing tape, stationery, etc. （5） Reactive adhesive properties: cured through chemical reactions, forming a sturdy and durable bonding surface, suitable for harsh environmental conditions. Scope of application: High end manufacturing industries such as aerospace and military equipment. The selection of appropriate glue and tape depends on the specific application scenario and requirements. Understanding these foundational knowledge can help users make wise choices to achieve optimal usage outcomes.