The main classification of commonly used special packaging paper

(1)Parchment is also called plant parchment or commonly known as sulphuric acid paper. It is a semi-transparent wrapper. Parchment paper is treated with concentrated sulphuric acid, ie "sterile", so it is suitable for packaging food, candy and tea. , tobacco and other items. Parchment structure is tight, with waterproof, moisture, oil and other protective functions, because of its translucency, can be used instead of tracing paper. Parchment is suitable for the packaging of industrial parts such as machine parts, meters, and chemicals.

(2) Imitation parchment, also known as translucent paper, looks and feels very much like parchment, but in fact the production process and nature of the two are different. Imitation parchment is a double-sided glossy paper made from sulphite wood pulp as raw material after prolonged viscous beating. It is manufactured without adding any filler, but requires high sizing and super calendering. Compact structure, double-sided light, translucent, thin and soft, with oil and water resistance performance, but after a long time with water wet will reduce the strength, size has a greater change. It is mainly used for the packaging of oils, dairy products, candy, cigarettes, medicines, etc. that do not require a long time of storage.

(3)Cellophane, also known as transparent paper, is a very high-grade transparent packaging paper. It is based on high-grade bleached sulphate wood pulp as a raw material, treated with sodium hydroxide solution to make alkalized cellulose, and then made into a viscose liquid with a series of treatments such as carbon disulfide and alkali, and then formed in a sulfuric acid bath and finally After washing and other processing. It is used to package goods, the contents of which are clearly visible and are commonly used for packaging cosmetics, medicines, confectionery, cakes, and needle-cotton fabrics, and also for the opening of various packages.

(4) Anti-rust paper, also known as contact anti-rust paper or sodium benzoate anti-rust paper or sodium nitrite anti-rust paper. It is mainly used for packaging metal materials and products to prevent oxidation and rust and reduce losses. Blades such as shaving blades are one of its products. Anti-rust paper is industrial packaging paper, which is processed from base paper.

(5) VCI paper, or VPl paper, is a new type of anti-rust paper that is technically more advanced than contact anti-rust paper. The purpose of rust prevention can be achieved by sublimating the rust inhibitor into a gaseous state. Mainly used for the packaging of metal materials and their products.

(6) Vacuum aluminum-plated paper is a commonly used packaging lining paper in the modern cigarette industry. Mainly used for cigarette packaging, food (butter, cheese, etc.) packaging and gift packaging. It is an evaporation type packaging paper.

(7) The aluminum foil liner is composed of two layers of material. The outer layer is a rolled aluminum foil; the inner liner layer is a very thin aluminum foil liner. The two materials are added together to form a tight, airtight, impervious wrapper. Mainly for advanced cigarettes, biscuits, candy, chocolate and other goods.

There are oil-proof paper, food packaging paper, tea bag paper, composite paper, etc.