CN110884256A - Ink-jet method for improving printing quality - Google Patents

Abstract

The invention discloses an ink-jet method for improving printing quality, which comprises the following steps: s1: modifying the drop data in the drop data storage, S2: the drop data store rearranges the drops, changes the shape of the drops, and forms the drops into a drop mass, S3: when ejecting ink, the print head controls the nozzles to eject ink, ejecting the rearranged ink droplet mass from the nozzles. The invention changes the weight and the shape of the ink drop groups by reorganizing and arranging the shapes of the ink drops, can ensure that the ink drop groups uniformly fall on paper, reduces the influence of turbulence on the ink drop groups, uniformly arranges printing points on the paper, improves the quality of the printing points, has more obvious effect on improving the printing quality of pictures and shading, and avoids the condition that the ink drops with smaller quality form regular convergence in the air under the action of the turbulence, and the ink drops can not uniformly fall on the paper, so that the condition that the printing points are alternated with black and gray occurs, thereby influencing the quality during printing.

Description

Ink-jet method for improving printing quality

Technical Field

The invention relates to the technical field of ink-jet printing, in particular to an ink-jet method for improving printing quality.

Background

In the inkjet printing process, the size of the ink drop ejected by the nozzle is generally 5/7/12PL, and due to the different sizes of the ink drops, when the ink drop drops vertically, air around the ink drop can flow upwards, meanwhile, the paper moves to drive the air to flow to form a gap air flow between the nozzle plate and the printing paper, the upward air flow and the air flow moving along the paper form a turbulent flow, as shown in fig. 2-4, due to the formation of the turbulent flow, the ink drops can be regularly converged under the action of the turbulent flow, and when the ink drops drop on the paper, the black and gray condition appears on the paper, so that the printing quality of the picture or the shading is poor, and therefore, the improvement is needed.

Disclosure of Invention

The invention aims to solve the problem that ink drops regularly converge under the action of turbulence generated by air flow and air flow moving paper to cause black and gray alternation on the paper, and provides an ink jet method for improving the printing quality.

In order to achieve the purpose, the invention adopts the following technical scheme:

an ink jet method for improving print quality, comprising the steps of:

s1: modifying the drop data in the drop data store;

s2: the ink drop data storage device can rearrange the ink drops, change the shape of the ink drops and enable the ink drops to form an ink drop group;

s3: when the ink is jetted, the printing head controls the nozzles to jet the ink, and the ink drop groups with the rearranged shapes are jetted from the nozzles;

s4: when the ink droplet group is dripping, because the weight and the shape of the ink droplet group are changed, the turbulent flow can not influence the ink droplet group, and the rearranged ink droplet group can uniformly fall on paper, thereby avoiding the condition of black and gray gaps on the paper and improving the quality of printing points.

Compared with the prior art, the invention changes the weight and the shape of the ink drop groups by reorganizing and arranging the shapes of the ink drops, can ensure that the ink drop groups uniformly fall on paper, reduces the influence of turbulence on the ink drop groups, ensures that printing points on the paper are uniformly arranged, improves the quality of the printing points, has more obvious effect on improving the printing quality of pictures and shading, and avoids the condition that the ink drops with smaller quality form regular convergence in the air under the action of the turbulence, and the ink drops can not uniformly fall on the paper, so that the condition that the printing points have alternate black and gray occurs, thereby influencing the quality during printing.

Drawings

FIG. 1 is a schematic view of ink drop data modification in the present invention;

FIG. 2 is a schematic view showing the flow structure of air when the paper moves;

FIG. 3 is a schematic diagram of an embodiment of an inkjet head for controlling the flow of air generated by ejection of ink droplets;

FIG. 4 is a schematic structural view of the jet head of the present invention controlling the effect of turbulence on the ejection of a drop mass of ink;

FIG. 5 is a diagram illustrating the effect of a printed paper when a conventional ink droplet is dropped;

FIG. 6 is a schematic diagram illustrating the effect of the printed paper in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, an inkjet method for improving print quality includes the steps of:

s1: modifying the drop data in the drop data store, the drop data program modification code being as shown in FIG. 1;

s2: the ink drop data storage device can rearrange the ink drops, change the shape of the ink drops and enable the ink drops to form an ink drop group, and when the air forms turbulent flow, the position of the ink drop group in the air cannot be changed, so that the ink drop group can be uniformly dropped on the paper;

s3: when the ink is jetted, the printing head controls the nozzles to jet the ink, and the ink drop groups with the rearranged shapes are jetted from the nozzles;

s4: when the ink droplet group drops, because the weight and the shape of the ink droplet group are changed, fig. 2-4 show that when the ink droplet drops, the turbulent flow is formed and the influence of the turbulent flow on the ink droplet with smaller weight is reduced, because the weight and the shape of the ink droplet group are changed, the influence of the turbulent flow on the ink droplet group dropping in the air is reduced, the rearranged ink droplet group uniformly drops on the paper, the condition of black and gray gaps shown in fig. 5 is avoided, the quality of the printing point is improved, particularly, the picture and the shading are more obvious, and the printed paper is shown in fig. 6.

In the invention, at the beginning, the ink drop data in the ink drop data storage is modified according to the mode of fig. 1, after the modification, the ink drop data storage can rearrange the ink drops, change the shape of the ink drops, and enable the ink drops to form an ink drop group, during the ink jet, the printing head controls the nozzles to jet the ink, and the ink drop group with the rearranged shape is jetted from the nozzles, when the ink drop group drops, the movement of the ink drop group and the paper can generate turbulence, because the weight and the shape of the ink drop group are changed, the influence of the turbulence on the ink drop group can be reduced, and the position of the ink drop group in the air can not be changed, so that the ink drop group uniformly drops on the paper, the condition of black and gray gaps on the paper as shown in fig. 5 is avoided, the quality of the printed points is improved, and particularly the improvement of the printing quality on pictures and shading is more obvious, and.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (1)

1. An ink jet method for improving print quality, comprising the steps of:

s1: modifying the drop data in the drop data store;

s2: the ink drop data storage device can rearrange the ink drops, change the shape of the ink drops and enable the ink drops to form an ink drop group;

s3: when the ink is jetted, the printing head controls the nozzles to jet the ink, and the ink drop groups with the rearranged shapes are jetted from the nozzles;

s4: when the ink droplet group is dripping, because the weight and the shape of the ink droplet group are changed, the turbulent flow can not influence the ink droplet group, and the rearranged ink droplet group can uniformly fall on paper, thereby avoiding the condition of black and gray gaps on the paper and improving the quality of printing points.

Images