Although ABS plastic has certain applications in cosmetic packaging, its disadvantages are more obvious than other commonly used plastics (such as PP, PET, PE, AS, etc.), which are mainly reflected in the following aspects: 1. Poor chemical resistance Sensitivity to solvents: ABS is easily corroded by certain organic solvents (such as ketones, esters, and some alcohols), causing surface dissolution or cracking. Fragrances, essential oils, or certain active ingredients in cosmetics may react with it, affecting the integrity of the packaging. Long-term stability issues: Long-term contact with oils or acidic ingredients may cause ABS to age or discolor, affecting the appearance of the product. 2. Low transparency Not suitable for transparent packaging: ABS is usually translucent or opaque (unless specially modified), and cosmetic packaging often requires high transparency to display the contents (such as essence, toner). In contrast, materials such as PET, AS or PMMA have higher transparency. 3. Weak weather resistance and UV resistance Easy to yellow and embrittle: ABS is easily oxidized and yellowed under ultraviolet radiation or high temperature environment, affecting the appearance. If cosmetics need to be displayed for a long time or exposed to sunlight (such as sunscreen product packaging), ABS may not be suitable, while PET or PC have better UV resistance. 4. Environmental protection and recycling issues Difficulty in recycling: ABS is an engineering plastic, with complex recycling classification and lower recycling value than general plastics such as PP and PET. With the trend of emphasizing sustainable development, brands may tend to choose materials that are easier to recycle. No bio-based options: ABS is usually petroleum-based plastic, while some cosmetics brands prefer biodegradable materials (such as PLA) or recycled PET (rPET). 5. Cost and processing limitations Price fluctuations: The price of ABS raw materials is greatly affected by the market of monomers such as styrene and may not be as stable as PP or PE. High processing requirements: Temperature and humidity must be strictly controlled during ABS injection molding, otherwise defects (such as silver streaks) are prone to occur. PP has a wider processing adaptability and is suitable for rapid production. 6. Hygiene and safety concerns Residual monomer risk: Styrene monomer (potentially harmful substance) may remain in the ABS synthesis process, and strict testing is required to ensure compliance with the migration standards of cosmetic packaging (such as EU EC 1223/2009). PP, HDPE and other materials are more inert and safer. 7. Limitations of mechanical properties General temperature resistance: The heat resistance temperature of ABS (about 8085°C) is lower than that of PP (can withstand more than 100°C), and it is not suitable for high-temperature filling or sterilization processes. Insufficient wear resistance: The surface of cosmetic packaging often needs to be printed or coat...

ABS plastic (Acrylonitrile Butadiene Styrene copolymer) is widely used in cosmetic packaging due to its excellent comprehensive properties. Below is an analysis of its core applications and characteristics:  I. Primary Applications 1. Bottle Caps and Pump Heads       Its high hardness and dimensional stability make it suitable for threaded caps, press pumps, and other components requiring precise structures.   2. Cream Jars and Makeup Containers       Commonly used for foundation compacts, eyeshadow palettes, and other packaging due to its ease of dyeing and glossy surface, which enhances premium aesthetics.   3. ToolBased Packaging       Components like mascara wands and lipstick tubes benefit from its mechanical strength, ensuring durability with repeated use.   4. Secondary Processing Components       Combined with other materials (e.g., glass or PET bottles) as decorative brackets or functional accessories.    II. Core Properties and Advantages 1. Strong Mechanical Performance       Impact resistance (contributed by butadiene) suits shockproof needs during transport, while hardness (from acrylonitrile) prevents scratches.   2. Versatile Surface Treatment       Can be electroplated, spraypainted, or UVcoated to achieve metallic or matte finishes, elevating the product’s perceived value.   3. Chemical Resistance       Resists alcohols and oils (common in skincare) but should avoid strong solvents (e.g., acetone).   4. Ease of Processing       Highefficiency injection molding allows for complex structures (e.g., multilayer snap designs), reducing production costs.   5. Lightweight and CostEffective       Low density (~1.041.06 g/cm³) makes it lighter than glass, with costs lower than engineering plastics like PC.     III. Limitations and Considerations  Poor Weather Resistance: Prolonged UV exposure may cause yellowing, requiring UV stabilizers or opaque packaging.    Permeability: Unsuitable for highly volatile contents (e.g., perfumes) requiring airtight sealing.    Environmental Pressure: Nonbiodegradable; recycling systems (e.g., chemical recycling) are needed to comply with regulations.    IV. Comparison with Other Materials | Property             | ABS        | PP (Polypropylene) | Glass      | ||||| | Impact Resistance    | ★★★★☆      | ★★★☆☆             | ★☆☆☆☆       | | Surface Decoration   | ★★★★★      | ★★★☆☆             | ★★★★☆       | | Heat Resistance      |...