Back-sealed bags are a type of packaging where the sealing is done along the rear part of the bag, with no seals on the sides. This structural design enhances the bag's ability to withstand external pressure, thereby reducing the risk of package damage. From a design perspective, it also maintains the integrity of the front pattern.
Back sealing design, effectively reducing the use of packaging materials. Compared with other types, it saves about 40% of materials, making it an environmentally friendly and cost-effective packaging option. Its material with high-barrier PET or aluminum foil composite materials, offering effective moisture resistance, oxidation protection, and anti-crushing performance, which together help maintain the freshness and quality of the contents. The back-seal design also contributes to a crisp, three-dimensional appearance, making it appropriate for packaging candies, biscuits, coffee powder, seasonings, frozen foods, and more.
It offers practical features like easy-tear openings and hanging holes, and can be made from single recyclable or biodegradable materials to meet diverse market needs and the exterior bag body can be enhanced in overall visual effect through partial UV varnishing, high-gloss or matte metallic foil treatment, as well as demetallized windows.
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High barrier preservation: Effectively prevent moisture and oxidation, and extend the shelf life of food.
Back-seal structure: The packaging is crisp and convenient for automatic packaging machines to fill quickly.
Convenient opening: Supports easy-tear openings and heat-sealed designs to enhance user experience.
Environmentally friendly and sustainable: Provides recyclable and degradable materials, in line with the trend of green packaging.
Food-grade safety: Meets international food safety standards such as FDA and EU, and no harmful substances are precipitated.
