SA-228 Water-Based Paper-Plastic Laminating Adhesive for Composite Packaging Materials: Product Applications
I.Characteristics of Paper-Plastic Composite Packaging Materials Paper-Plastic Composite Packaging Materials As end-consumers increasingly demand visual impact and packaging perfection from various brands, as well as a focus on environmental sustainability, many brands are incorporating more paper elements into their packaging designs. Fruit gift boxes, snack bags, and medicine boxes all feature paper-plastic composite packaging structures. The novel and unique design of paper-plastic composite packaging materials has generated strong sales for brand owners. Paper-plastic composite packaging materials are a composite material composed of a paper-based material and one or more other film materials, combined through one or more lamination processes to create a functional composite material. Paper-plastic composite materials overcome the shortcomings of plastic film's poor printability and water-induced deformation, offering high strength, excellent water resistance, and a beautiful appearance. They are currently one of the most popular packaging materials and are widely used in the food, daily chemical, and hygiene product industries. They are also widely used in beverage and food packaging, pharmaceutical packaging, high-end paper boxes, and paper bags for clothing. Materials and Equipment for Paper-Plastic Lamination The materials involved in the paper-plastic lamination process include: adhesive for laminating paper-plastic lamination, laminating machines, laminating paper, and laminating films. Laminating Adhesives: Single-component acrylic adhesives are generally used for paper-plastic lamination. Laminating Machines: Paper-plastic lamination generally falls into two categories: thin paper and film lamination, and thick paper and film lamination. The tension and roll diameter of the former are similar to those of conventional flexible packaging laminating machines, and they typically utilize dual-purpose machines for both paper-plastic and plastic-plastic lamination. The technical parameters and structure of the latter differ significantly from those of flexible packaging laminating machines, and they typically utilize dedicated laminating machines for paper-plastic lamination. Precautions for Using Paper-Based Materials for Paper-Plastic Lamination A wide variety of paper materials can be used for laminating, including coated paper, white kraft paper, yellow kraft paper, offset paper, writing paper, light-weight coated paper, pearlescent paper, soft tissue paper, and base paper. Depending on the packaging design requirements, different composite structures can be created, such as OPP/paper, PET/paper, CPP/paper, PE/paper, and AL/paper. There are dozens of different types of paper, depending on the end use and process. Commonly used in paper-plastic packaging include kraft paper, white kraft paper, soft tissue paper, base paper, and pearlescent paper, with basis weights ranging from 25g to 80g. Due to the wide variety of paper types and their ...
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