The open-mouth, flat-bottom bag is an energy-saving and environmentally friendly product.

　　Open-mouth, flat-bottom bags are an energy-saving and environmentally friendly product—sturdy, long-lasting, aesthetically pleasing, breathable, and reusable. They lend themselves beautifully to screen-printed ink advertising, offering durability and versatility that make them ideal for promotional campaigns and corporate gifts across all industries. First, nonwoven shopping bags deliver greater cost-effectiveness as plastic restrictions take hold; packaging bags will gradually be phased out of the retail market, giving way to reusable nonwoven shopping bags. Nonwoven tote bags are easier to print with custom designs and offer more vivid color reproduction than conventional packaging bags. Moreover, their multiple uses allow for more attractive patterns and branding compared with disposable packaging bags. Because they suffer less wear and tear over repeated use, the overall cost per use is lower, resulting in even greater promotional and economic benefits. These bags significantly reduce reliance on plastic bags, last longer than paper bags, are fully recyclable, and combine high quality with affordability—making them highly effective for marketing and brand promotion.

　　Open-bottom square bags are a type of small to medium-sized bulk-container packaging vessel that is convenient, easy to clean, and features a compact structure. They are currently one of the most widely used packaging materials internationally and are particularly well suited for export and import packaging. Process description for open-bottom square bags: The bottom of the bag is formed by opening the bottom of a composite film plastic bag or a kraft paper square bag. According to customer requirements, eco-friendly adhesives can be used, and with manual folding, the bottom is sealed onto the body of the bag. Technical specifications for square open-bottom bags: Outer-layer material: cream-colored, milky-white, or multi-colored kraft paper or laminated kraft paper. Inner-layer material: cream-colored or milky-white kraft paper or extended kraft paper. Additional materials: moisture-proof PP or PE films can be laminated on the surface. Product advantages: environmentally friendly and energy-saving; diverse material options to meet various product packaging requirements; printing papers comply with environmental protection and export-import packaging standards in Europe and North America; manufactured in accordance with food hygiene and safety regulations; capable of continuous high-temperature fumigation and both dry and wet processing; excellent printability; aesthetically pleasing bag shape; large internal volume; and suitable for automated packaging machinery and canning operations. Application areas for square bottom bags: chemical raw materials, inorganic pigments, food additives, pharmaceutical additives, and architectural decoration materials—all are suitable for packaging in square bottom bags. The raw materials for open-bottom square bags are derived from plants such as flowers and trees.

　　The use of square-bottom open-top bags delivers the following benefits: 1. Low-carbon and environmentally friendly—adopting open-top square-bottom bags can significantly reduce the consumption of plastic bags, thereby markedly curbing the pervasive white-pollution problem; 2. Superior performance: these bags are manufactured from eco-friendly raw materials and rigorously processed in accordance with national environmental standards, resulting in superior biodegradability compared with other materials. Moreover, their service life is substantially longer than that of paper bags; 3. Recyclability and reuse: this type of square-bottom open-top bag features softness and excellent abrasion resistance, can be folded into various shapes for convenient recycling and reuse, and typically withstands more than 10,000 cycles of normal use. Elegant and versatile: the square-bottom open-top bags boast exquisite printing and are suitable for a wide range of specifications.