admin Hydrogen peroxide is a total chlorine free (TCF) bleaching agent. It is appropriate for chemical, mechanical and recycled pulp to achieve a wide range of brightness. It has both oxidizing and reducing properties which is pH depended. The chemical formula of this bleach is H2O2. Pure hydrogen peroxide is very light blue color but colorless … Read more
Chlorine dioxide is an oxidizing agent for pulp bleaching. The chemical formula of this chlorine dioxide bleach is ClO2. It is a yellowish-green gas, bad odor and liquefied in 11⁰C which is red in color. It is an ECF (elemental chlorine-free) bleaching process which is currently most important bleaching technology in worldwide, especially for sulfate … Read more
Hypochlorite bleach is an oxidizing agent. There are two types of hypochlorite bleaching agent that are used in pulp and paper industries such as calcium hypochlorite and sodium hypochlorite. Generally, this stage is placed after chlorination and alkali extraction stages. It can be single stage or multiple stage process. Single stage hypochlorite bleaching process is … Read more
Alkaline extraction stage is essential after chlorination bleaching stage is to remove chlorinated and oxidizing lignin products from the pulp. It is also help to reactivate the remaining lignin for the next oxidation stage. All the chlorinated lignins are not soluble in the water. About 40-42% of them are soluble in water and wash out. … Read more
Christmas tissue paper is a special type or non-especial type tissue paper. During Christmas many people decorate their house. For decoration tissue paper can be used and makes the holidays bright. For this purposes a special type tissue paper are produced. These may be colors such as blue, light blue, green, light green, pink, purple, … Read more
Halloween tissue paper crafts are fast, fun and reasonably priced. Tissue paper is produced in different colored, patterns, decorations, and textures. The various available colors of tissue papers are pink, green, light green, blue, light blue, purple, light yellow etc. This color tissue paper is used for Halloween decorations. It is easy to use, economical … Read more
Tissue paper is soft, feathery, lightweight, highly absorbent, tear resistant, disposable and relatively strong paper products. The tissue paper name originates from the French word “tissue”, which meaning cloth. Because of the tissue paper is as soft as cloth. It has become an important part in our daily life. Uses of this type of paper … Read more
Chlorination bleaching is the second stage of the pulp bleaching process. It is the cheapest bleaching agent for eliminating lignin. Elemental chlorine (EC) reacts selectively with the non carbohydrate compounds. It is another significant delignification process. It ruptures the lignin bonds and make important amount of chlorinated organic compounds. All most all the products of … Read more
There are different types of paper such as Printing and Writing Papers, Tissue, Newsprint, Containerboard, Kraft Paper, and Paperboard. Paper towels are under category of tissue paper. After toilet paper, it is the most purchased tissue product by consumers. The basic raw material of paper towels is wood fiber. The fiber may be virgin or … Read more
Oxygen Delignification is one of the most significant and well proven pulp bleaching process for ECF (elemental chlorine free) and TCF (total chlorine free) bleached pulp production. It is the first stage of the bleaching process; in this case oxygen and alkali are used to eliminate a portion of the residual lignin in the pulp … Read more