What is kraft paper?
Kraftpaper (kraftpaper) is used as packaging material. The intensity is high. Usually yellowish brown. Semi-bleached or fully bleached kraft pulp is light brown, cream or white. Quantitative 80～120g/m2. The fracture length is generally above 6000m. The tear strength, rupture work and dynamic strength are high. Mostly roll paper, but also flat paper. Using kraft softwood pulp as the raw material, it is beaten and copied on a Fourdrinier paper machine. It can be used as cement bag paper, envelope paper, glue sealing paper, asphalt paper, cable protection paper, insulation paper, etc.
The characteristics of kraft paper?
Kraft paper is a tough, water-resistant packaging paper. It is brown and has a wide range of uses. It is often used to make paper bags, envelopes, workbooks, record sleeves, files and sandpaper. The basis weight range is from 80 g/m² to 120 g/m². There are differences between web and flat paper, single-sided light, double-sided light, and stripe. The main quality requirements are flexibility and strength, high burst resistance, and ability to withstand greater tension and pressure without breaking. Kraft paper has a high tensile strength, such as single gloss, double gloss, stripes, and no grains. Mainly used for packaging paper, envelopes, paper bags, etc. and printing press drum linings, etc.