Kraft paper is a tough, water-resistant packaging paper. It is tan and widely used. It is often used to make paper bags, envelopes, exercise books, record sets, files, and sandpaper. The quantitative range is from 80 g/m2 to 120 g/m2. There is a difference between rolled and flat paper, and there is a single-sided light, double-sided light, and striped. The main quality requirements are flexible and strong, high break resistance, can withstand greater tension and pressure does not break. kraft paper has a high pull, single light, double light, stripes, no lines and so on. It is mainly used for wrapping paper, envelopes, paper bags, etc. and the roller lining of the printing press.

 

Classification

 

Kraft paper usually maintains its yellow-brown color, suitable for bags and wrapping paper. Depending on the nature and use, Kraft paper has various uses. Bovine paper is a collective name for paper, and there is no certain specification, which is generally classified according to its nature and use.

 

According to the different colors can be divided into: primary color Kraft paper, red Kraft paper, white Kraft paper, plain Kraft paper, single light Kraft paper, double color Kraft paper and so on.

 

According to the different uses can be divided into: packaging Kraft paper, waterproof Kraft paper, damp-proof Kraft paper, rust-proof Kraft paper, plate Kraft paper, process Kraft paper, insulated Kraft cardboard, Kraft stickers and so on.

 

According to the different materials can be divided into: recycled parchment, cowhide paper, wood pulp parchment, composite parchment and so on.

 

Usage

 

kraft paper is used in chemical industry, machinery and other industries, especially widely used in the food packaging industry.

 

Kraft paper is widely used in various packaging supplies, paper bags, handbag brown paper, color boxes, gift boxes bullskin paper, printing bullskin paper, printing bullskin paper, notebook bullskin paper, work paper. kraft paper, envelope special Kraft paper and so on.

 

Food packaging should follow the principle of convenience and portability, and the tensile strength of Kraft paper makes it very suitable for packaging requirements. In order to prevent the bag from being pulled off when the consumer carries the food, the packaging material requires a good tensile strength. Beverage packaging requires the material to have a certain degree of moisture resistance to deformation and damage to prevent water absorption deformation.

 

For frozen food packaging, the use of high-strength materials as packaging is also a key consideration. This material must be able to withstand the heat expansion and contraction during cold freezing and high temperature melting, preventing deformation, distortion, wrinkles, and excessive moisture absorption. Can not hold food. From these points of view, raw brown paper is even more suitable than SBS paper.