1. Personnel factors

2. Equipment factors

(1) Equipment aging. Equipment aging can easily cause the printing roller to be pressed loosely or too tightly, resulting in no printing or deformation of the printed characters. In addition, equipment problems can easily cause missing printing and missing characters.

(2) Equipment without bag feeding and drying devices. Equipment without bag feeding and drying devices can easily cause insufficient evaporation of ink and easy adhesion to container bags.

3. Raw material factors

(1) Ink quality problems. It can easily cause the container bags to fade and the printed characters to be dull.

(2) Uneven ink mixing. It can easily cause the printed characters to be dull.

(3) Bag piece problems. There are oil stains on the bag pieces, which makes it impossible to print, or the bag pieces themselves do not meet the requirements.
(4) Offset plate problem. The offset plate is easily corroded by ink, and the font itself has been deformed.
4. Operation method

5. Environmental factors