Tissues are a widely used commodity today. They serve a wide variety of uses such as wiping a spilling, wiping nose,
wiping face, bathroom hygiene etc.
This March at Tissue world Miami Pulp and paper exhibitors will be present at Miami, USA. If you are concerned about the future of the paper industry, you should definitely attend.
Manufacture of tissues can be done using wood i.e. using both soft and hardwood and recycled paper. Not all trees can be utilized for papermaking. The woods from trees containing softwood and hardwood are used. 30% softwood and 70% hardwood are utilized for making tissues. To get the final tissue, many chemicals and bleaches are added.
To start off, soft wood and hardwood are collected. The hard exterior called the bark is removed from this. These woods are then chopped using machine into smaller pieces and then separated to form batches. This wood is then put into many chemicals and a lot of water and heated till it forms a pulp after a few hours. This pulp contains cellulose fibers, lignin and other residues. The lignin and other residues are washed out and the pulp is bleached. The pulp is then mixed with a lot of water and this mixture is sprayed on screens of mesh to remove the water. If the lignin is not washed out then the paper will turn yellow with time. The material on the screen of mesh is then pressed to remove as much water as possible, then dried. It is later scrapped off from the surface of the screens using metal blades and rolled on jumbo reels.
The tissue on these jumbo reels is cut into long strips and perforates to form small squares. The process of converting parent tissue reel to the small tissue rolls available in the market is called tissue conversion. It is done using certain complicated machinery. Tissue paper converting companies use machines such as rewinders embossers, coupling slitter rewinders for tissues, napkins-handkerchief machines etc. for the purpose of conversion. After the conversion, they are sent to the markets where they are sold.
Using a regular toilet paper may not be a very healthy solution since it is manufactured using a number of chemicals. Chemicals such as Bisphenol-A and formaldehyde are used in tissue making which makes it harmful. Formaldehyde is said to be a carcinogen. Few safe options of toilet paper are the unbleached toilet paper, PCF toilet paper (Processed chlorine free) and TCF toilet paper (Totally chlorine free). The unbleached toilet paper uses no bleaches and so it may not be white and soft like the usual ones but it’s safer to use these. PCF and TCF are both leached with oxygen, ozone or hydrogen peroxide. The only difference between the two is that one is made of recycled paper while the other is not.