In the printing industry, Kraft paper is one of the most frequently encountered paper types. Today, I will share some knowledge about Kraft paper, such as its origin, classification, and applications.
01· The Origin of Kraft Paper
The name "Kraft paper"
A long time ago, it was indeed made from processed cowhide. However, the name Kraft paper has been used ever since, not out of nostalgia, nor out of laziness to change the name, but because this kind of Kraft paper still maintains the advantages of toughness and durability.
The production of Kraft paper
With the development of technology, today's Kraft paper has nothing to do with real cowhide. Most of it is made from softwood fibers, which are chemically pulped, then put into a pulper for beating, and then added with sizing agents, dyes, etc., and finally made into paper on a paper machine.
The scope of Kraft paper
In fact, Kraft paper no longer refers to a specific specification, but is a general term for similar papers with the advantages of Kraft paper, and there is no fixed standard.
02· Classification of Kraft Paper
Classification One
By color, Kraft paper can generally be divided into brown kraft paper, red Kraft paper, white Kraft paper, matte Kraft paper, single-sided glazed Kraft paper, two-color Kraft paper, etc.
Classification Two
By use, it can be divided into wrapping kraft paper, waterproof Kraft paper, moisture-proof Kraft paper, rust-proof Kraft paper, pattern making Kraft paper, process Kraft paper, insulating Kraft paperboard, Kraft stickers, etc.
Classification Three
By material, it can be divided into recycled Kraft paper, Kraft core paper, Kraft base paper, rough-surface Kraft paper, Kraft wax paper, wood pulp Kraft paper, composite Kraft paper, etc.
03· Uses of Kraft Paper
Uses in the printing industry
In the printing industry, Kraft paper is tough and durable, and can be made waterproof and moisture-proof after processing. It is usually used for printing envelopes, handbags, document bags, archive bags, food bags, etc.; in the packaging industry, it is mainly used for packaging bags, gift boxes, etc.