Characteristics And Classification of Kraft PaperUpdate:15 Jul 2022

Kraft paper, used as packaging material. Intensity is high. Usually yellowish brown. Semi-bleached or fully-bleached kraft pulp is hazel, cream or white. Quantitative 80~120g/m2. The fracture length is generally more than 6000m. High tear strength, work to rupture and dynamic strength. Mostly roll paper, but also flat paper. The kraft softwood pulp is used as raw material, and it is made by beating on a Fourdrinier paper machine. It can be used as cement bag paper, envelope paper, glue-sealed paper, asphalt paper, cable protection paper, insulating paper, etc.

Features of kraft paper:

Kraft paper is a tough, water-resistant packaging paper that is brownish-yellow and has a wide range of uses. The basis weight range is 80 g/m2 to 120 g/m2, and there are differences in web and flat paper, as well as single-sided gloss, double-sided gloss and striped. The main quality requirements are flexibility and firmness, high burst resistance, and can withstand greater tension and pressure without breaking. Kraft paper has high tensile force, and has single light, double light, stripe, no grain, etc. Mainly used for wrapping paper, envelopes, paper bags, etc. and printing press cylinder lining.

Types of kraft paper:

Kraft paper usually maintains its yellowish-brown color and is suitable for bags and wrapping paper. According to the different properties and uses, kraft paper has various uses. Kraft paper is a general term for a kind of paper, and there is no certain specification. Generally, it is classified according to its properties and uses.

According to the different colors, it can be divided into: primary color kraft paper, red kraft paper, white kraft paper, flat kraft paper, single light kraft paper, two-color kraft paper, etc.

According to different uses, it can be divided into: packaging kraft paper, waterproof kraft paper, moisture-proof kraft paper, rust-proof kraft paper, patterned kraft paper, process kraft paper, insulating kraft paperboard, kraft stickers, etc.

According to the different materials, it can be divided into: recycled kraft paper, kraft core paper, kraft base paper, rough kraft paper, kraft wax paper, wood pulp kraft paper, composite kraft paper, etc.

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