Among the packaging paper, the most used is the paper bag paper used for packaging bulk powder and granular industrial and agricultural raw materials, such as cement, fertilizer, etc., which are generally made of more than 3 to 4 layers of paper, so it is also called multi-layer paper bag paper. Other bag paper for packaging light and delicate goods. This type of wrapping paper mainly requires high strength, heavy load resistance, impact resistance, and proper air permeability. Food packaging paper has the most varieties and specifications. It is divided into two categories: inner packaging and outer packaging. The inner wrapping paper that is in direct contact with food is mainly required to be clean, free of germs, and has the characteristics of moisture-proof, oil-proof, stick-proof and mildew-proof. The outer wrapping paper is mainly used to beautify and protect the commodity. In addition to requiring a certain physical strength, it also needs to be clean and beautiful, and is suitable for printing multi-color commodity patterns and characters. The wrapping paper for liquid beverages such as milk and vegetable juice must also have excellent impermeability. In order to meet the needs of long-term preservation and preservation, special beverage soft packaging paper (see food packaging containers) has been developed, which is composited with paper and metal film, paper and plastic and metal film. In order to meet the anti-rust needs of metal instruments and tools, anti-rust paper was developed. The vast majority of cardboard is also used for commodity packaging, mainly used in the manufacture of cartons, cartons and packaging liners.
Types and uses of wrapping paper
1. Universal wrapping paper
There are paper bag paper, kraft paper, egg paper, aluminum foil backing paper, needle wrapping paper, translucent paper, striped kraft paper, film protection base paper, match paper, neutral wrapping paper, stretchable paper bag paper, thin wrapping paper, ordinary wrapping paper, Striped wrapping paper, agricultural wrapping paper, soap wrapping paper, crepe tire wrapping paper, paddle slag wrapping paper, aluminum wrapping paper, packaging base paper, vellum paper composite packaging material, recycled kraft paper, recycled cement bag paper, waterproof bag paper, Phosphate fertilizer bag paper, recycled crepe bag paper, wrapping paper, kraft cardboard, gray lining paper, blue bag sandpaper, composite crepe base paper, machine-made white vellum paper, more empty aluminized base paper, vacuum aluminized paper, film lining paper.
2. Special wrapping paper
There are industrial parchment, extra-fine parchment, industrial parchment base paper, extra-fine parchment, neutral paraffin paper, neutral paraffin base paper, cellophane, striped asphalt base paper, striped asphalt paper, bitumen moisture-proof base paper, vapor-phase moisture-proof paper, vapor-phase Rust base paper, black opaque paper, sodium benzoate anti-rust paper, neutral plastic wax moisture-proof wrapping paper, tar paper with thread.
3. Food wrapping paper
There are food parchment paper, food parchment base paper, candy wrapping base paper, popsicle wrapping paper, imitation parchment paper, ordinary food wrapping paper, greaseproof paper, composite materials for liquid food packaging, extruded candy wrapping paper, and oxygen barrier composite packaging materials for cake preservation , Deoxidizer bag paper for cake preservation.
4. Packaging cardboard
There are single-sided white cardboard, thick cardboard, yellow cardboard, neutral cardboard, box cardboard, kraft cardboard, corrugated base paper, standard cardboard, suitcase cardboard, teaboard paper, match outer box cardboard, match inner box cardboard, double-sided gray cardboard, Grey cardboard.
