Three-side seal bag

Three-side seal bag is a common form of plastic packaging, which is characterised by sealing both sides and the bottom three sides of the packaging material through heat sealing technology, while the top is usually retained as an opening or designed with an easy-to-tear opening in order to facilitate the opening of the consumer. This kind of packaging structure is simple and practical, widely used in food, medicine, chemical, electronic products and other fields.

Features

  1. Good sealing: through the high temperature heat sealing technology, the three-side sealed bag can effectively isolate air, moisture and light, maintain the freshness of the product and extend the shelf life, especially suitable for products with high sealing requirements.
  2. Good display effect: Due to its flat front design, it can provide a large printing area, which is conducive to the display of product information and brand promotion, and enhance the visual appeal of the goods.
  3. cost-effective: compared with other complex structure of the packaging, the production process of the three-side sealed bag is simple, the use of materials economic, can effectively reduce packaging costs.
  4. Diversity: Different materials (such as PE, PET, CPP, etc.) can be selected according to the needs of different products, as well as a variety of surface treatments, such as transparent, aluminium plating, matte, etc., in order to meet the packaging requirements of different products.
  5. Convenient to carry and store: lightweight and occupies little space, which is extremely convenient for both manufacturers warehousing and consumers carrying.

Applications

  1. food industry: commonly used in packaging nuts, candy, tea, coffee powder, spices and other dry food, not only to maintain the freshness and taste of food, but also to facilitate the display and sale.
  2. medicine and health care products: suitable for vitamin tablets, pills, health care powder and other products packaging, to ensure that the health and safety of drugs and the active ingredients are not affected by the external environment.
  3. electronic products: moisture-proof and dust-proof packaging for small electronic components, accessories, batteries, etc., to protect products from static electricity and physical damage.
  4. Cosmetics and personal care: such as face masks, shampoo trial packs, skin care products samples, etc., not only to facilitate portion control, but also to attract consumer attention.
  5. Chemical products: seeds, fertiliser samples, chemical reagents and other items that need to be kept sealed to prevent leakage and contamination.

Typical Applications