Materials with pre-consumer recycled content
Introduction
Paper recycling is the process of recovering paper already created or used to transform it into new paper products.
There are four categories of paper that can be used as raw materials for recycled paper: ground, consumer waste, post-consumer waste, toilet paper. Toilet paper must be previously dried and cleaned as it may contain parasitic, diarrheal or gastrointestinal diseases. Ground paper is cuttings and pieces from paper manufacturing, and is recycled internally in a paper factory. Pre-consumer waste is materials that have already passed through the paper mill, and that have been rejected before being prepared for consumption. Post-consumer waste is already used paper materials that the consumer rejects, such as old magazines or newspapers, office supplies, telephone directories, etc. Paper that is considered suitable for recycling is called "waste paper."
Current recycling process
Paper is recycled by reducing it to paper pulp and combining it with new pulp from wood. Since the recycling process causes the fibers to break down, every time paper is recycled its quality decreases, which means that a high percentage of new fibers must be added, or it will be synonymous with lower quality products. Any writing or coloring on the paper must first be removed by bleaching.[1].
Almost any type of paper can be recycled today, although some are more difficult to deal with than others. Papers covered with plastic or aluminum, and waxed, glued or gummed papers are normally not recycled due to the high cost of the process. Gift papers also cannot be recycled due to their already poor quality.[2].
Recycling plants sometimes ask that glosses be removed from newspapers because they are a different type of paper. They have a clay coating that some factories cannot work with. Most of the clay is removed from the recycled paste as sludge.
Reasons to recycle
Contenido
La industria del papel supone un efecto en el medioambiente, tanto con las actividades previas (donde se adquieren y procesan las materias primas), como en las posteriores (impacto de eliminación de residuos). El reciclaje del papel reduce este impacto.