A printing device with automatic side coloring and its operation method

Abstract

The invention relates to a printing device capable of achieving automatic side coloring and an operation method thereof. The device comprises a coloring structure and a positioning structure used for accommodating a paper printed material. The lower end face of the coloring structure is coated with printing ink; a gap where waste paper of the paper printed material is placed in a mode of hanging in the air is reserved in the positioning structure; and the paper printed material is placed in the positioning structure, the waste paper is placed in the gap in a mode of hanging in the air, a die cutting line of the paper printed material is aligned to the printing ink of the lower end face of the coloring structure, the coloring structure moves downwards to press the paper printed material, the sides of the paper printed material are printed with the printing ink, and redundant printing ink is printed onto the waste paper of the paper printed material and the back of the paper printed material. According to the printing device capable of achieving automatic side coloring and the operation method thereof, the inking position is accurate and controllable, impressing inking is adopted, the printing ink directly makes contact with the paper printed material, printing ink fog drops are avoided, air is not polluted, the amount of loss of the printing ink is small, and coloring is uniform; and the redundant printing ink is printed onto the back and the waste paper of the paper printed material so that the printing ink can be effectively prevented from contaminating the front of the paper printed material, the product yield is improved, and the practicability is high.

Description

technical field [0001] The present invention relates to the technical field of printing and packaging, and more specifically refers to a printing device with automatic side coloring and an operation method thereof. Background technique [0002] There are two main methods for the existing side coloring process of paper substrates: [0003] Process 1: Manual inkjet coloring. Such as figure 1 As shown, the paper substrates that need to be colored on the side are stacked to form a stacked flat paper substrate (11), and the worker sprays the ink (13) on the paper from the side by operating the inkjet device (12). On the substrate, make one side be colored, then move to the other side, and repeat the operation until all the sides that need to be colored are sprayed with color. [0004] Process 2: Manual coloring. Such as figure 2 As shown, put the stacked flat paper substrates (21) together, and use ordinary color pens (22) to manually paint on the sides that need to be colo...

AI Technical Summary

Problems solved by technology

[0006] For the first process: 1. The amount of ink is difficult to control. The manual inkjet coloring method cannot evenly spray ink on all parts of the side. Manual inkjet needs to control the inkjet amount and inkjet position, which is difficult to achieve

[0007] 2. The loss of ink volume is large, ink droplets will be formed during the manual inkjet process, and the droplets will spread to the air and the surface of the paper substrate, which is difficult to collect and causes waste

[0008] 3. It is easy to pollute the front of the paper substrate. During the manual inkjet process, ink droplets are likely to pass through the die-cutting line between the paper substrates and ink on the front of the printed paper substrate, resulting in defective and waste products. produce

[0009] 4. It can only be used for coloring on the outer side. Due to the limitation of manual inkjet equipment, inkjet coloring on the side of paper substrates is often limited to the outer side of paper substrates with regular shapes. For inner edges and shapes Irregular sides make inkjet more difficult

[0010] The second process: 1. Low coloring efficiency, artificial coloring seriously affects production efficiency, and is not suitable for large-scale production

[0011] 2. It is difficult to control the amount of ink. Manual coloring is affected by the different force of the hand, so it is difficult to maintain the same amount of ink

[0012] 3. It is easy to pollute the front of the paper substrate, and manual coloring is prone to "hand slip", which will cause the front of the paper substrate to be polluted, resulting in defective and waste products

[0013] 4. It can only be used for regular side coloring. Due to the limitation of manual flexibility and the size of the pen, manual coloring is often limited to a larger and more regular side. For the inner side and irregularly shaped side, Coloring is more difficult

Images