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Offset printing connecting line cold-foil printing process and equipment

A cold stamping and in-line technology, which is applied in the printing process, printing, printing machines, etc., can solve the problems of poor gloss of offset stamping products, limit the application range of offset cold stamping, high viscosity of cold stamping glue, etc., and achieve good surface smoothness, Excellent dot effect and low production cost

Inactive Publication Date: 2018-05-18
HUCAIS PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the relatively high viscosity, strong viscosity, and poor leveling of the cold hot glue, after being transferred to the substrate, the surface is jagged. Reflection, resulting in poor gloss of offset printing and hot stamping products, and the phenomenon of numbness on the surface, which is quite different from the brightness of hot hot stamping small blocks, which greatly limits the application range of offset printing and cold stamping

Method used

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  • Offset printing connecting line cold-foil printing process and equipment
  • Offset printing connecting line cold-foil printing process and equipment
  • Offset printing connecting line cold-foil printing process and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An offset printing in-line cold perm process, the following steps are performed on the offset printing in-line cold perm equipment:

[0038] A. Printing varnish: offset printing varnish on the surface of the printing substrate;

[0039] B. Curing for the first time: Curing the substrate printed with varnish in step A for the first time until the varnish is in a semi-cured state to obtain a printed matter with graphic varnish;

[0040] C. Pressing the cold stamping foil: press the cold stamping foil onto the surface of the printed matter obtained in step B, and then perform the second curing until it is fully cured to obtain a cold stamping product with pictures and texts.

[0041] In the step A, the amount of ink on the varnish is 0.8g / m 2 .

[0042] In the step A, the varnish is a low-viscosity ink fountain varnish, and the low-viscosity ink fountain varnish includes the following raw materials in parts by weight:

[0043]

[0044]

[0045] The ultraviolet cur...

Embodiment 2

[0053] An offset printing in-line cold perm process, the following steps are performed on the offset printing in-line cold perm equipment:

[0054] A. Printing varnish: offset printing varnish on the surface of the printing substrate;

[0055] B. Curing for the first time: Curing the substrate printed with varnish in step A for the first time until the varnish is in a semi-cured state to obtain a printed matter with graphic varnish;

[0056] C. Pressing the cold stamping foil: press the cold stamping foil onto the surface of the printed matter obtained in step B, and then perform the second curing until it is fully cured to obtain a cold stamping product with pictures and texts.

[0057] In the step A, the amount of ink on the varnish is 1.8g / m 2 .

[0058] In the step A, the varnish is a low-viscosity ink fountain varnish, and the low-viscosity ink fountain varnish includes the following raw materials in parts by weight:

[0059]

[0060] The ultraviolet curable resin i...

Embodiment 3

[0068] An offset printing in-line cold perm process, the following steps are performed on the offset printing in-line cold perm equipment:

[0069] A. Printing varnish: offset printing varnish on the surface of the printing substrate;

[0070] B. Curing for the first time: Curing the substrate printed with varnish in step A for the first time until the varnish is in a semi-cured state to obtain a printed matter with graphic varnish;

[0071] C. Pressing the cold stamping foil: press the cold stamping foil onto the surface of the printed matter obtained in step B, and then perform the second curing until it is fully cured to obtain a cold stamping product with pictures and texts.

[0072] In the step A, the amount of ink on the varnish is 2.9g / m 2 .

[0073]In the step A, the varnish is a low-viscosity ink fountain varnish, and the low-viscosity ink fountain varnish includes the following raw materials in parts by weight:

[0074]

[0075] The ultraviolet curable resin is...

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Abstract

The invention relates to the technical field of printing, in particular to an offset printing connecting line cold-foil printing process and equipment. The offset printing connecting line cold-foil printing process on the offset printing connecting line cold-foil printing equipment comprises the steps that A, gloss oil is printed, specifically, the gloss oil is printed on the surface of a printingsubstrate; B, curing is performed for the first time, specifically, the printing substrate printed with the gloss oil in step A is cured until the gloss oil is in a partially curing state, and printed matter with image-text gloss oil is obtained; and C, cold foil is compressed, specifically, the cold foil is pressed onto the surface of the printed matter obtained in step B, and then cured for thesecond time until the cold foil is completely cured to obtain a cold-foil printing product with image-text. The offset printing connecting line cold-foil printing process has simple operation, high production efficiency and low production cost; the prepared cold-foil printing product has higher flatness and leveling property, mirror reflection is generated, the brightness and the glossiness of the cold-foil printing product are effectively improved, the line fineness of image-text information of the cold-foil printing product is enhanced, the better net line effect is presented, the quality is stable, and the large-scale production is facilitated.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to an offset printing in-line cold stamping process and equipment. Background technique [0002] Currently on the market, the on-line cold stamping of offset printing is realized by transforming the two units of the offset printing machine. Transfer to the substrate; install the control system of the hot stamping foil in the second unit, through the counter pressure of the rubber cylinder and the impression cylinder, the graphic part coated with cold stamping glue will pull the aluminum layer of the hot stamping foil back to the substrate After completing the transfer of the hot stamping foil, the foil tape after hot stamping is taken back by the hot stamping foil control system. [0003] However, due to the relatively high viscosity, strong viscosity, and poor leveling of the cold hot glue, after being transferred to the substrate, the surface is jagged. Reflection, resulting in...

Claims

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Application Information

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IPC IPC(8): B41M1/22B41F19/06B41G1/04C09D11/03C09D11/102
CPCB41M1/22B41F19/06B41G1/04C09D11/03C09D11/102
Inventor 张文雨张能建
Owner HUCAIS PRINTING
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