During flock manufacture cut fibres are exposed to special processing. Unlike other kinds of processing of textile materials, flock, during manufacturing, gets the certain electric conductivity. Long-term preservation of this quality essentially depends on the tightness of a container, on the temperature and relative humidity of air in where the flock is stored. The environmental conditions are also important in the rooms where flocking takes place. Water flooding, freezing (temperature drop below 00C), intense lighting and strong heating lead to irreversible changes, i.e. to flock damage. Flock conductivity necessary for work is only reached in the presence of humidity. During storage in a dry room or long transportation, moisture can evaporate from the flock surface.
Therefore flock must be stored at temperature 15 — 250C, with relative air humidity 60 — 65%, in the darkened room in the container with maximal tightness (a fastened polyethylene package placed in the cardboard box). If storage conditions nevertheless differ from the optimal ones, flock planned for work, should be hold in with standard conditions within 24 hours. This process is called the flock conditioning. Such operation is useful after transportation, both in cold and hot seasons.
The stocking conditions of flock are also important. If stocked in bags it is necessary to take into account that under the action of its weight flock is pressed, and its flowability worsens. If flock is stored in the hardboard boxes they can be kept in stacks of any height.