FIBRES

Types

Natural

Vegetable

Woody

Hardwood

Oak

Elm

Ash

Birch

Eucalyptus

Softwood

Pine

Spruce

Fir

Non-wood

Abaca

Straw

Hemp

Flax

Jute

Bagasse

Bamboo

Esparto

Cotton

Recycled

Group 4 - Kraft grades

Group 2 - Medium

Group 1- Normal

Group 5 - Kraft grades

Group 3 - Heavy

Animal

Mineral

Synthetic

Metal

Ceramic

Organic

Pulping Methods

Mechanical

Grindstone

Refiner

Chemical

Sulphate

Sulphite

Soda

Composition

Chemical

Ash

extractives

Lignin

Hemicellulose

Cellulose

Physical

Walls

Fibrils

Microfibrils

Cellulose Chains

Glucose

Trearment

Beater

Refiner

Conical

Wide Angle (Claflin)

Narrow Angle (Jordan)

Disk

Single Disk

Double Disk

Cleaning