阅读说明：本技术 一种印刷设备以及印刷方法 (Printing equipment and printing method ) 是由 马立项 曹光辉 吴金平 于 2019-10-29 设计创作，主要内容包括：本发明为一种印刷设备以及印刷方法,包括喷墨系统,所述喷墨系统直接给印版系统供墨,所述喷墨系统至少可以提供两种颜色的油墨,所述印版系统与所述压印滚筒连接,所述印版系统和所述压印滚筒之间设有承印物,所述压印滚筒和所述印版系统配合滚压。印品上的连续图文可至少呈现一种墨色连续无网点,或者两种或两种以上墨色间无网点连续过渡变化,或者两种或两种以上墨色间无网点和无接缝拼接效果。(The invention relates to printing equipment and a printing method, which comprise an ink jet system, wherein the ink jet system directly supplies ink to a printing plate system, the ink jet system can at least provide ink with two colors, the printing plate system is connected with an impression cylinder, a printing stock is arranged between the printing plate system and the impression cylinder, and the impression cylinder and the printing plate system are matched and rolled. The continuous graph and text on the printing product can at least present one ink color continuous non-dot, or no dot continuous transition change between two or more ink colors, or no dot and no seam splicing effect between two or more ink colors.)

1. A printing apparatus, characterized by: the printing plate printing system comprises an ink jet system (4), wherein the ink jet system (4) directly supplies ink to a printing plate system, the ink jet system (4) can at least provide ink with two colors, the printing plate system is connected with an impression cylinder (1), a printing stock (2) is arranged between the printing plate system and the impression cylinder (1), and the impression cylinder (1) and the printing plate system are matched and rolled.

2. A printing apparatus according to claim 1, wherein: the printing plate system is a printing plate (3), and the printing plate (3) is connected with the impression cylinder (1).

3. A printing apparatus according to claim 1, wherein: the printing plate system comprises a transfer printing plate (6) and a printing plate (3), wherein the transfer printing plate (6) is connected with the printing plate (3) to transfer ink, the printing plate (3) is connected with the impression cylinder (1), and the ink jet system (4) directly supplies ink to the transfer printing plate (6).

4. A printing apparatus according to claim 2 or 3, wherein: a plurality of transfer printing cylinders (5) are arranged between the printing plate (3) and the printing stock (2), the printing plate (3) transfers pictures to the transfer printing cylinders (5), and the transfer printing cylinders (5) are used for transferring the pictures to the printing stock (2).

5. A printing method of a printing apparatus according to any one of claims 1 to 4, characterized in that: comprises the following steps of (a) carrying out,

(1) ink mixing: adjusting the ink color of the ink-jet system (4), and selecting the required ink color to be opposite to the printing plate system;

(2) ink jetting: aligning an ink jet system (4) to the printing plate system, wherein the ink jet system (4) performs ink jet and ink supply on an image-text area of the printing plate system in the rotating process of the printing plate system;

(3) printing: the printing plate system cooperates with the impression cylinder (1) to transfer the image to the surface of the printing material (2).

6. A printing method of a printing apparatus according to claim 5, characterized in that: the printing plate system is a printing plate (3), the ink jet system (4) is aligned with the printing plate (3) for supplying ink, and the printing plate (3) is matched with the impression cylinder (1) for transferring the pictures to the surface of the printing stock (2).

7. A printing method of a printing apparatus according to claim 5, characterized in that: the printing plate system comprises a transfer printing plate (6) and a printing plate (3), wherein the ink jet system (4) firstly directly supplies ink to the transfer printing plate (6), the transfer printing plate (6) transfers the pictures to the printing plate (3), and the printing plate (3) is matched with the impression cylinder (1) and transfers the pictures to the surface of a printing stock (2).

8. A printing method of a printing apparatus according to claim 6 or 7, characterized in that: a plurality of transfer printing cylinders (5) are arranged between the printing plate system and the impression cylinder (1), pictures and texts are transferred to the surface of the transfer printing cylinder (5) by the printing plate system, multiple kinds of printing ink are fused, and the transfer printing cylinder (5) is matched with the impression cylinder (1) to transfer the pictures and texts to the surface of a printing stock (2).

Technical Field

The invention relates to printing equipment, in particular to automation equipment for multicolor printing.

Background

In the traditional lithographic, intaglio and relief printing technologies, ink is mainly transferred to a printing plate through an inking system consisting of an ink fountain and an ink roller, only one type of ink is usually transferred, or several types of ink are transferred through a fountain color separation mode, and the number of ink colors is limited due to the fountain color separation condition. In the traditional printing modes, pictures and texts are determined by printing plates, and the traditional printing modes belong to the printing of invariable data.

Ink jet printing in the field of variable data printing is a relatively popular printing technique in recent years. The ink jet printing directly sprays the pattern ink on the surface of a printing stock in an ink jet mode to directly print; or sprayed on a transfer printing material, and then the ink is transferred to the surface of a printing stock through the transfer printing material. The ink jet printing realizes the shade change of printing colors and the presentation of image-text characteristics by controlling the density and the position of ink drops in an image-text area, so that image-text data can be controlled by a program according to requirements to realize variable data printing.

Disclosure of Invention

The invention provides printing equipment for realizing the characteristics of multicolor connection, rainbow gradual change and the like of printed pictures and texts, which comprises an ink jet system, wherein the ink jet system directly supplies ink for a printing plate system, the ink jet system can supply ink with at least two colors, the printing plate system is connected with an impression cylinder, a printing stock is arranged between the printing plate system and the impression cylinder, and the impression cylinder and the printing plate system are matched and rolled.

Preferably, the printing plate system is a printing plate, and the printing plate is connected with the impression cylinder.

Further, the printing plate system comprises a transfer printing plate and a printing plate, the transfer printing plate is connected with the printing plate to transfer ink, the printing plate is connected with the impression cylinder, and the ink jet system directly supplies ink to the transfer printing plate.

Preferably, a plurality of transfer cylinders are arranged between the printing plate and the printing stock, the printing plate transfers pictures and texts to the transfer cylinders, and the transfer cylinders are used for transferring the pictures and texts to the printing stock. The transfer printing roller increases the transfer printing times and improves the uniformity of ink fusion.

Further, a printing method of a printing apparatus includes the steps of: (1) ink mixing: and adjusting the ink color of the ink jet system, and selecting the required ink color to be opposite to the printing plate system.

(2) Ink jetting: and aligning an ink jet system to the printing plate system, wherein the ink jet system performs ink jet and ink supply on the image-text area of the printing plate system in the rotating process of the printing plate system.

(3) Printing: the printing plate system cooperates with the impression cylinder to transfer the image to the surface of the printing material.

Preferably, the printing plate system is a printing plate, the ink jet system supplies ink to the printing plate, and the printing plate is matched with an impression cylinder to transfer the pictures to the surface of the printing stock.

Further, the printing plate system comprises a transfer plate and a printing plate, the ink jet system directly supplies ink to the transfer plate, the transfer plate transfers the ink to the printing plate, and the printing plate is matched with the impression cylinder to transfer the pictures to the surface of the printing stock.

Preferably, a plurality of transfer printing cylinders are arranged between the printing plate system and the impression cylinder, the printing plate system transfers the pictures and texts to the surface of the transfer printing cylinders, a plurality of kinds of ink are fused, and the transfer printing cylinders are matched with the impression cylinder to transfer the pictures and texts to the surface of a printing stock.

Has the advantages that: the printing product can be faithful to the image and text of the printing plate, particularly the image and text outline of the printing product can be faithful to the image and text of the printing plate, and the continuous image and text on the printing product can at least present one ink color continuous non-dot, or no dot continuous transition change between two or more ink colors, or no dot and no seam splicing effect between two or more ink colors.

Drawings

FIG. 1 is a schematic diagram of an ink supply structure for a printing plate of the ink jet system of the present invention;

FIG. 2 is a schematic diagram of an ink supply structure of the inkjet system for a rotary printing plate according to the present invention;

FIG. 3 is a schematic diagram of an ink jet system for adding ink to a plate to a transfer cylinder according to the present invention;

FIG. 4 is a schematic diagram of an ink jet system of the present invention for supplying ink to a transfer plate to add a transfer cylinder;

FIG. 5 is a graph of the effect of printing using the present invention;

1. an impression cylinder; 2. a substrate; 3. printing plate; 4. an ink jet system; 5. a transfer roller; 6. a transfer plate; 7. splicing patterns; 8. color two; 9. mixing gradient colors; 10. color one.

Detailed Description

Example one

As shown in fig. 1, a printing apparatus includes an inkjet system 4, the inkjet system 4 directly supplies ink to a printing plate system, the inkjet system 4 can supply ink of at least two colors, the printing plate system is connected with an impression cylinder 1, in this embodiment, the printing plate system is a printing plate, a printing material 2 is arranged between the printing plate 3 and the impression cylinder 1, and the impression cylinder 1 and the printing plate 3 are rolled together.

The specific working principle is as follows: the ink jet system 4 is over against the printing plate 3, the ink jet system 4 performs ink jet control according to printing image and text requirements of the printing plate 3, in the printing process, the ink jet system 4 performs ink jet ink supply on image and text areas of the printing plate 3 in the rotating process of the printing plate 3, and after the printing plate 3 receives the ink of the ink jet system 4, the printing plate is rolled with the impression cylinder 1 to transfer the ink in the image and text areas of the printing plate 3 to the surface of the printing stock 2, so that printing is completed. In the printing process, the ink jet system 4 adjusts the ink jet amount of different image-text areas of the printing plate 3 according to the control requirement to achieve the effect of changing the image-text color, and the ink jet system 4 can also jet ink with various colors. As shown in fig. 5, a printed "positive" character printed by the above method has an outline faithful to the contents of the image and text of the printing plate, the image and text area on one printing plate 3 can simultaneously receive at least two inks, such as color one 10 and color two 8, and a non-dot mixed gradient color 9 can be formed in the image and text area of the same printing plate 3 by ink jet control, and in addition, a non-dot and seamless splicing pattern 7 can be formed in the image and text area of the printing plate 3, and when the printing plate 3 transfers the image and text to the surface of the printing material 2, the non-dot mixed gradient color 9 can be formed; furthermore, a non-dot and non-seam stitching pattern 7 is formed.

Example two

The difference from the embodiment is that: as shown in fig. 3, a plurality of transfer cylinders 5 are provided between the printing plate 3 and the printing material 2, the transfer cylinders 5 transfer images and texts to the printing material 2, and the transfer cylinders 5 are used for transferring images and texts to the printing material 2.

The specific working principle is as follows: after the image-text area of the printing plate 3 receives the ink jet of the ink supply system, the printing plate 3 firstly transfers the ink in the image-text area to the transfer printing cylinder 5, and then the transfer printing cylinder 5 transfers the image-text to the surface of the printing stock 2 by rolling with the impression cylinder 1.

EXAMPLE III

The difference from the embodiment is that: as shown in fig. 2, the printing plate system includes a transfer plate 6 and a printing plate 3, the transfer plate 6 is connected to the printing plate 3 for transferring ink, the printing plate 3 is connected to the impression cylinder 1, and the ink jet system 4 directly supplies ink to the transfer plate 6.

The specific working principle is as follows: the ink jet system 4 is over against the transfer printing plate 6, the ink jet system 4 carries out ink jet control on the area of the transfer printing plate 6 opposite to the image-text area of the printing plate 3 according to the image-text requirement of the printing plate 3, in the printing process, the ink jet system 4 carries out ink jet ink supply on the area of the transfer printing plate 6 opposite to the image-text area of the printing plate 3 in the rotating process of the transfer printing plate 6, after the transfer printing plate 6 receives ink of the ink jet system 4, the transfer printing plate 6 transfers the ink to the image-text area of the printing plate 3, the printing plate 3 is rolled with the impression cylinder 1, and the ink in the image-text area of the printing plate 3 is transferred to the surface of the.

Example four

The difference from the third embodiment is that: as shown in fig. 4, a plurality of transfer cylinders 5 are provided between the printing plate 3 and the printing material 2, the printing plate 3 transfers the graphics to the transfer cylinders 5, and the transfer cylinders 5 are used for transferring the graphics to the printing material 2.

The specific working principle is as follows: after the area of the transfer plate 6 opposite to the image-text area of the printing plate 3 receives the ink jet of the ink supply system, the transfer plate 6 firstly transfers the ink to the printing plate 3, the printing plate 3 then transfers the image-text to the transfer cylinder 5, and then the transfer cylinder 5 transfers the image-text to the surface of the printing stock 2 by rolling with the impression cylinder 1.