What is Paper

The paper we use every day its life starts with bamboo trees. It is cut and taken to the pulp mill; wood changes to modified and cast pulp.

The cast pulp is combined with a chemical substance then Finally converted as paper by machines.

It goes to paper press where export from chemicals and ink is used to print page.

After that, pages are bound in the practice book from packed and sold in the market for sale. After which we use it.

While the household paper is primarily used for lower-class ingredients, it is reprocessed to obtain packaging or wrapping paper. On the other hand, Office paper is a pure raw material and therefore utilized to produce high-quality paper products.

According to the final product, recycled paper can be added in varying percentage levels to the prime material without lowering its qualitative properties. Before doing so, the recycled material requires manual screening to guarantee that any of the disturbing materials mentioned above do not interfere with the papers' final properties.

Thus, both mechanical and manual preselection are required to ensure that the material fed into the complex process is kept at a preset qualitative level.

Processing: Once the paper has passed pre-selection, the material fed into the paper-making process is soaked in water until the cellulose fibers become loose. Flotation removes any metallic and other constituents (stapler clamps, etc.), while bleaching (de-inking) yields the required pulp.
Newsprint paper contains about 50% recycled paper, while the remaining half originates from virgin timber. According to the final requirements, the content of recycled material can be increased as required to almost 100%.

Deinking process

Similarly, raw materials like tree trunks and wood chips undergo a different preparative process. For newsprint, tissue, and other inexpensive papers, woodchips or recycled papers are used. Here, wood chips are ground in a separate TMP process (thermo-mechanical pulp) before mixing with recycled paper, and bleaching can take place.
High-quality paper requires primarily virgin wood material. The trunks are cut into pieces of preset length, de-barked, shredded (grinder using a steel/stone surface structure), and floated with water. Finally, to remove both the ligneous brownish color, the soaked material is exposed to the bleaching agent - this process destroys the colligative properties of lignin.

Virgin wood and wood chips from wood plantations

Chemical pulp is made by boiling a mixture of wood chips using either soda, sulfite, or sulfate. This process removes lignin. The modern and more environmentally sound method involves the utilization of ozone as the main bleaching agent.

The pulp obtained from these manifold processes has a fiber content of only 1-1.5%. Before feeding it into the paper machine, additives like kaolin are mixed into the pulper. Kaolin reduces the paper's absorptive properties during printing; the higher the Kaolin content, the shinier the paper. On the other hand, writing papers contain a water-resistant substance such as rosin to prevent the ink from spreading out. Because of its strength, Kraft paper is used for bags and wrapping purposes; the extra strength is obtained using sulfate as the main additive. Only then is the pulp fed into the machine, where it is poured onto a wire screen. Here the water drains away, and the fibers begin to mat. The paper layer then passes through a series of rollers and dryers, which squeeze, press, and smoothen the watery sheath to various finishes.