I. Prolonged exposure to sunlight One of the main reasons colored bottles fade is prolonged exposure to sunlight. UV rays break down the color pigments or coatings used on the surface of the bottle, causing them to dull or discolor. This is especially true for spray-painted or frosted bottles with lighter shades.Colored bottles stored in high heat or direct light are more likely to experience color changes. Stacking or rubbing during shipping can also cause scratches and color loss. II. Use of poor-quality paints by suppliers Many manufacturers use low-grade coatings or processes to reduce production costs, but this method will cause the products to fade. Poor-quality materials cannot withstand high temperatures, humidity or friction during transportation. III. Deficiencies in materials and processes 1.Uneven pigment dispersion: Insufficient mixing of the masterbatch leads to color differences.When the melting point difference between the masterbatch and the su...

In the $180B global cosmetics market, customizable tubes dominate 67% of skincare packaging.Cosmetic tubes are widely used in cleansers, eye creams, primers, sunscreens and other products due to their lightness, good sealing and portability. This article will give you a comprehensive understanding of tube packaging from three aspects: the manufacturing process of tubes, surface treatment technology and common types of matching caps. Manufacturing Process of Skin Care Tubes Skin care tubes are usually made of PE (polyethylene) plastic, aluminum foil, plastic film and other materials.They are made into sheets by co-extrusion and compounding, and then pressed into tubular containers by a special tube making machine. The production process of tubes mainly includes: extrusion molding → cutting → printing → sealing → capping. Each step needs to be precisely controlled to ensure aesthetics and sealing. According to product type and usage requirements, they can be divided i...