阅读说明：本技术 一种超宽幅数码喷墨印刷方法 (Ultra-wide digital ink jet printing method ) 是由 陈晓明 黄春华 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种超宽幅数码喷墨印刷方法,包括以下步骤：S1：对印刷图案进行图像采集并对采集的图像做增强处理；S2：确定印刷图案轮廓线,在印刷织物上用防渗透剂处理与图案轮廓线相同形状的面积；S3：以按需喷射式的方法进行喷墨印刷。本发明提出的超宽幅数码喷墨印刷方法,在印刷图案采集阶段进行增强,提高采集图案的精度与质量,防止印花图案出现偏差,印刷织物进行防渗透处理,阻止织物的润湿性和纤维之间的毛细管效应以防止油墨扩散,提高印花图案的清晰度与固色牢度。(The invention discloses an ultra-wide digital ink jet printing method, which comprises the following steps: s1: carrying out image acquisition on the printed pattern and carrying out enhancement processing on the acquired image; s2: determining a printing pattern contour line, and treating the area with the same shape as the pattern contour line on the printing fabric by using an anti-seepage agent; s3: ink jet printing is carried out in a drop on demand method. The ultra-wide digital ink jet printing method provided by the invention is enhanced in the printed pattern acquisition stage, the accuracy and quality of the acquired pattern are improved, the printed pattern deviation is prevented, the printed fabric is subjected to anti-permeation treatment, the wettability of the fabric and the capillary effect among fibers are prevented to prevent ink from diffusing, and the definition and color fixation fastness of the printed pattern are improved.)

1. An ultra-wide digital ink-jet printing method is characterized by comprising the following steps:

s1: carrying out image acquisition on the printed pattern and carrying out enhancement processing on the acquired image;

s2: determining a printing pattern contour line, and treating the area with the same shape as the pattern contour line on the printing fabric by using an anti-seepage agent;

s3: ink jet printing is carried out in a drop on demand method.

2. An ultra-wide-width digital inkjet printing method according to claim 1, wherein: the image acquisition method in S1 includes:

a1, arranging a low-power-consumption light source near the light enhancement device, and using the light emitted by the low-power-consumption light source to assist the image acquisition device to acquire images;

a2, collecting a highlight image, and adjusting the inclination angle of a light enhancement device to adjust the intensity of light rays irradiated by a light source on the collected image;

a2, correcting the central wave bands of the three wave band ranges of red, green and blue in the highlight image, and selecting a composite collected image.

3. An ultra-wide-width digital inkjet printing method according to claim 2, wherein: the enhancement processing method in S1 is:

b1, acquiring the collected image, and performing format conversion on the collected image to obtain a depth image in a target format;

b2, comparing the depth image with the pattern according to the target format, and repairing the defect position of the collected image;

b3, carrying out median filtering on the depth image after restoration to remove image edge noise and obtain an enhanced image after image enhancement processing.

4. An ultra-wide-width digital inkjet printing method according to claim 1, wherein: the anti-permeation agent is polyvinyl butyral, modified starch or agar or polyvinyl alcohol, the mass fraction of the anti-permeation agent is 4-8 parts, and the molecular weight of the anti-permeation agent is 16000-40000.

5. An ultra-wide-width digital inkjet printing method according to claim 4, wherein: a heat-resistant agent is added into the anti-penetration agent, and the mass ratio of the heat-resistant agent to the anti-penetration agent is as follows: 1: 1-5.

6. An ultra-wide-width digital inkjet printing method according to claim 5, wherein: the heat-resistant agent is one of methylene benzyl sodium naphthalene sulfonate, methylene bis methyl sodium naphthalene sulfonate or a dispersing agent S or a benzyl naphthalene sulfonic acid formaldehyde condensate.

Technical Field

The invention relates to the technical field of hollow jewelry manufacturing, in particular to an ultra-wide digital ink jet printing method.

Background

The wide-width digital ink-jet printing machine is a large-scale printing output equipment which is controlled by computer and integrates light, machine and electricity. Wide format digital ink jet printing machines generally work as follows: and after the power-on passes the self-checking, entering a printing preparation state. After the printing task is started, the PC machine processes the image to be printed, converts the image to be printed into an image file with a specific format, and then transmits a line of printing data to the printing machine control system through the data interface to the storage module. At the moment, the PC machine also transmits the preprinting parameter information to the control system, and then sends a pulse signal to the word car controller to control and drive the word car to start moving. Once the running speed of the carriage reaches the uniform speed, the nozzle group on the carriage is controlled to enter an ignition jet printing stage. When the spray printing of a line of picture is finished, the control system sends a control signal to the control module of the cloth walking stepping motor, the cloth walking stepping motor is driven to drive the printing medium to move by a spray printing width in the longitudinal direction, the control system sends a signal to the word car controller to drive, and the process is circulated until the spray printing of the whole image is finished. After the inkjet printing is finished, the PC sends a zero-point returning instruction to the printing machine control system, so that the carriage returns to the zero point of the carriage track.

For a wide-width digital ink-jet printing machine, the printing space is large, the improvement of the precision and the quality of a printing pattern is a continuous pursuit, if the printing quality is insufficient, a large amount of printing fabrics are wasted, the working efficiency is influenced, and a large amount of resources are wasted.

Disclosure of Invention

The invention provides an ultra-wide digital ink-jet printing method, which aims to solve the problem of insufficient quality of wide digital ink-jet printing patterns in the background technology.

The invention provides an ultra-wide digital ink jet printing method, which comprises the following steps:

s1: carrying out image acquisition on the printed pattern and carrying out enhancement processing on the acquired image;

s2: determining a printing pattern contour line, and treating the area with the same shape as the pattern contour line on the printing fabric by using an anti-seepage agent;

s3: ink jet printing is carried out in a drop on demand method.

Preferably, the image capturing method in S1 is:

a1, arranging a low-power-consumption light source near the light enhancement device, and using the light emitted by the low-power-consumption light source to assist the image acquisition device to acquire images;

a2, collecting a highlight image, and adjusting the inclination angle of a light enhancement device to adjust the intensity of light rays irradiated by a light source on the collected image;

a2, correcting the central wave bands of the three wave band ranges of red, green and blue in the highlight image, and selecting a composite collected image.

Preferably, the enhancement processing method in S1 is:

b1, acquiring the collected image, and performing format conversion on the collected image to obtain a depth image in a target format;

b2, comparing the depth image with the pattern according to the target format, and repairing the defect position of the collected image;

b3, carrying out median filtering on the depth image after restoration to remove image edge noise and obtain an enhanced image after image enhancement processing.

Preferably, the anti-permeation agent is polyvinyl butyral, modified starch or agar or polyvinyl alcohol, the mass fraction of the anti-permeation agent is 4-8 parts, and the molecular weight of the anti-permeation agent is 16000-40000.

Preferably, a heat-resistant agent is added into the anti-permeation agent, and the mass ratio of the heat-resistant agent to the anti-permeation agent is as follows: 1: 1-5.

Preferably, the heat-resistant agent is one of sodium methylene benzyl naphthalene sulfonate, sodium methylene bis methyl naphthalene sulfonate or a dispersing agent S or a benzyl naphthalene sulfonic acid formaldehyde condensate.

The invention provides an ultra-wide digital ink jet printing method, which has the beneficial effects that: the ultra-wide digital ink jet printing method is enhanced in the printed pattern acquisition stage, the accuracy and the quality of acquired patterns are improved, printed patterns are prevented from deviating, the printed fabrics are subjected to anti-permeation treatment, the wettability of the fabrics and the capillary effect between fibers are prevented, so that ink diffusion is prevented, and the definition and the color fixation fastness of the printed patterns are improved.

Detailed Description

The invention is further illustrated by the following examples.