Kraft paper versatility is incredible. We can also call it brown paper. It is a type of rough paper, with a brown tone and different kinds of weight. Its colour comes from being made with unbleached chemical pulp. It is very resistant and therefore gives for very varied uses.
Origin and manufacture
Its name derives from the German language. In German, Kraft means strong. A Swedish man, Carl Dahl, developed it in 1879. Its use was extended so much, that it became essential for the manufacture of food bags and paper bags.
Caustic soda and sodium hydroxide are used to obtain pulp from fibre wood. These two components are its raw material giving Kraft paper versatility. Due to the colouration, it obtains in its elaboration; brown tones mark the Kraft paper. It can also be whitened, giving a more resistant and non-yellowing paper. It’s a process similar to the manufacture of recycled paper. The unbleached result is that of a thick, high strength and rough paper.
Kraft Paper Versatility: Most Common Uses
There are those who consider it a low-level product, especially because it is ugly and rough, which only serves to pack objects. But each time it is valued more, and different sectors use it. The own and most common use is in packaging, and it comes in rolls, sheets, envelopes, bags, and more.
We find it mainly in boxes and bags for transport, in the conventional parcels and the shops. Also usually found inside shoe boxes and other objects, to protect them.
With time, fashions change, and kraft paper is entering the world of gifts, as an original, eco-friendly and economical type of packaging.
Kraft paper in writing
With a grammage of 70, this allows easy writing and absorbs the inkwell, provided it is not very liquid. Whitened, it is perfect for accounting, records, minutes and official documents. It is also used to make personal writings, such as notepad, restaurant menu and similar (even, decorated drawer). Also, with a larger weight, for folders, business cards and wedding and communion cards. Full-colour printing is available.
The kraft paper serves to form the bee-like cells, which, placed inside, gives consistency to doors made of wood veneer. For example, the oak doors have pressed sawdust and a layer with the pattern resembling the wood veins, which, in fact, is wallpaper and lamination.
As thermal insulation of houses it’s also great, impregnated with tar or other materials, and forming sheets. Sometimes it is used for acoustics, although it is not fully perfected.
Void filling systems
Another use that has been very successful in the last years is to elaborate with the paper void filling products. Layers of gummed paper that has been shaped or moulded after being reconstituted through a void filling machine are used to safeguard products in transit. It is a cheap and effective way to secure goods during transport.