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What is the greater strength of kraft paper than ordinary paper?

As a common material in the packaging and printing industry, kraft paper is no stranger to friends in the industry. But many people do not understand why the strength of kraft paper is stronger than ordinary paper. Today, Jie Shen paper will give you corresponding answers to this question.

First of all, let's look at the origin of kraft paper, which needs to be traced back to ancient times. At that time, kraft paper was made of real calfskin, but with the continuous development of science and technology, this kind of real kraft paper is rare nowadays, unless it is found on the surface of gongs and drums or in high-end brand kraft paper bags. Now through papermaking process, chemical methods, dyes, rubber and other processing papers, because the surface is like kraft, so called kraft paper.

The problem of high strength of kraft paper needs to be analyzed from its components. Kraft paper is generally made of long wood fibers. After wood cooking, chemical drugs such as caustic soda and alkali sulfide are chemically treated, and the strength of long wood fibers remains intact, so the strength of paper will be stronger than that of ordinary paper.

Usually in the production of kraft paper, the manufacturer will minimize human reasons or other improper treatment of kraft paper strength damage, the protection of kraft paper toughness attaches great importance. The color of kraft paper is generally divided into yellow, natural color, yellowish brown, brown yellow, white and so on. The breaking length of kraft paper can reach more than 6000M in the range of 80-120g/m2. According to the characteristics of kraft paper, it is used to make handbags, carton boxes and so on.
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