1. Pulp: a fiber material (usually natural plant) prepared for further processing.
2. Pulp classification: according to the raw material source of pulp, it can be divided into wood pulp, non wood pulp and waste pulp; according to the production process, pulp can be divided into chemical pulp, mechanical pulp and chemical mechanical pulp.
3. Pulp: pulp made from coniferous or broad-leaved wood by chemical or mechanical or both methods. It includes chemical wood pulp, mechanical wood pulp and chemical mechanical wood pulp.
4. Non wood pulp: refers to the pulp made from stem and stem fibers (straw, wheat straw, reed, bagasse, bamboo, etc.), phloem fiber (hemp and cotton dry skin, mulberry skin, texture fiber, etc.), leaf fiber (longfibrous, sisal, etc.) and wool fiber (cotton fiber) as raw materials, and made by chemical or mechanical or both methods. It includes chemical non wood pulp, chemical mechanical non wood pulp, etc.
5. Waste pulp: refers to the pulp made from recycled waste paper and waste cardboard.
6. Chemical pulp: the pulp made by chemical treatment of plant fiber raw materials, which is made by removing a large part of non cellulose from the plant fiber raw materials, and no subsequent mechanical treatment is required to achieve fiber separation.
7. Mechanical pulp: pulp made entirely by mechanical means from different plant fiber materials (mainly wood raw materials) for papermaking and paperboard. For example, pressure grinding pulp (PGW), hot grinding mechanical pulp (TMP) of wood sheet, and blasting pulp.
8. Chemical mechanical pulp: pulp for papermaking and paperboard made from different plant fiber materials (mainly wood raw materials) by chemical pretreatment and mechanical method. For example, CMP, CTMP, BCTMP and APMP.
9. Commodity pulp: refers to the pulp (generally processed into pulp board) sold in the commodity market, excluding the pulp used by the enterprise.
10. ECF bleaching is a bleaching technology which uses chlorine dioxide as bleaching agent instead of elemental chlorine.
11. Total chlorine free bleaching (TCF bleaching) refers to the bleaching technology that does not use any chlorinated compounds in the whole bleaching process. The bleach mainly includes hydrogen peroxide and ozone.
12. Domestic waste paper recovery rate: refers to the percentage of domestic waste paper recovery and paper and board consumption used in pulp and paper industry.
13. Utilization rate of domestic waste paper: refers to the percentage of domestic waste paper recovery and paper and cardboard production volume used in pulp and paper industry.
14. Paper and board classification: paper is usually divided into cultural paper (news paper, printing and writing paper, photocopying paper, office paper, etc.), packaging paper (commercial packaging paper, paper bag paper, food candy packaging paper, etc.); domestic paper (sanitary paper, sanitary towel, face towel paper, napkin, diaper paper, etc.) and special paper (finance, building materials, electrical power, micro paper, micro paper, etc.) Functional paper required for electronic, national defense, communication, food, medical care, etc.). The paper board is divided into packaging cardboard (box board, corrugated original paper, white board, etc.); building board (gypsum board, sound insulation board, fireproof board, waterproof board, etc.); printing board (typeboard, cover board, envelope board, ticket board, etc.) and special paper board (jacquard board, steel paper board, spinning cylinder board, shoe board, filter board, insulation board, etc.) High temperature heat insulation board, etc.).
15. Quantity: the mass of paper or board per square meter is expressed in g/m2.
Paper is generally considered to be less than 225g/m2, and cardboard with a quantity of 225g/m2 or more. With the development of paper and board to low quantitative direction, the paper and board are mainly defined according to their characteristics and uses. For example, blotter and picture paper with a quantity of more than 225g/m2 are often referred to as paper. The designated amount of low quantitative paper is lower than 40g/m2.
