Commonly used paper packaging materials-kraft paper
Commonly used paper packaging materials-kraft paper
The gray color of kraft paper itself gives it a rich and colorful connotation and a simple sense of thickness, so as long as a set of colors is printed, its inner courage can be realized. Because of its low price and economical characteristics, designers like to use it Kraft paper comes as packaging.
Kraft paper (kraftpaper), used as packaging materials. The intensity is very high. Usually yellowish brown. Semi-bleached or fully-bleached kraft pulp is light brown, cream or white. The basis weight is 80～120g/m2. The fracture length is generally above 6000m. The tear strength, work of rupture and dynamic strength are high. Mostly roll paper, but also flat paper. Using sulfate coniferous wood pulp as the raw material, it is made by beating and is copied on a long wire paper machine. It can be used as cement bag paper, envelope paper, glue seal paper, asphalt paper, cable protection paper, insulation paper, etc.
Kraft paper is a tough, water-resistant packaging paper with a brownish-yellow color and a wide range of uses. It is often used to make paper bags, envelopes, workbooks, record sets, files, and sandpaper. The quantitative range is 80 g/m2 to 120 g/m2. There are differences between web and flat paper, and single-sided light, double-sided light and stripes. The main quality requirements are flexible and strong, high rupture resistance, can withstand greater tension and pressure without rupture. Kraft paper has a high tensile force, with single light, double light, stripes, and no texture. It is mainly used for packaging paper, envelopes, paper bags, etc. and printing machine roll lining.
Kraft paper usually maintains its yellow-brown color and is suitable for bags and wrapping paper. Depending on the nature and use, 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 nature and use.
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, double-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, pattern-making kraft paper, process kraft paper, insulating kraft paper, kraft stickers, etc.
According to different materials, it can be divided into: recycled kraft paper, kraft core paper, kraft paper, rough kraft paper, kraft wax paper, wood pulp kraft paper, composite kraft paper, etc.
