| abstract |
The invention provides a packaging composite film, which comprises a packaging composite film body, wherein an adsorption area is arranged on the packaging composite film body, the adsorption area comprises an outer isolation layer for isolating outside air, a middle adsorption layer containing an adsorbent and an inner breathable layer for communicating inner air with the middle adsorption layer, the outer isolation layer is arranged on the outer side, the inner breathable layer is arranged on the inner side, and the middle adsorption layer is arranged between the outer isolation layer and the inner breathable layer. The invention integrates the adsorbent (desiccant) and the packaging bag film, not only can expand the function of the packaging bag, but also can directly put the product into the packaging bag to seal the opening without being limited by the packaging method, thereby completing the packaging process, being convenient and rapid, reducing the production process, reducing the production cost, being beneficial to improving the production quality, and effectively avoiding the situation that the adsorbent (desiccant) is eaten by children by mistake. |