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A color printing process for packaging bags

A packaging bag and color printing technology, applied in the field of packaging bag manufacturing, can solve the problem of shallow pattern printing and achieve the effect of improving the printing effect

Active Publication Date: 2021-12-10
海宁卡洛包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the transparent packaging film is sequentially passed through the arranged printing machines to print patterns or characters on the surface of the film during the conveying process, but this method can only be used for one side of the film. printing, resulting in a lighter pattern print

Method used

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  • A color printing process for packaging bags
  • A color printing process for packaging bags
  • A color printing process for packaging bags

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 , a color printing process for a packaging bag disclosed by the present invention, comprising the following steps:

[0039] Step A: unwinding, unwinding the base material to be printed, the base material can be selected according to the actual product requirements, and a transparent film is selected in this embodiment.

[0040] Step B: Color printing on the front side, using a high-speed gravure printing machine to color-print the corresponding pattern on the bottom surface of the substrate. The high-speed gravure printing machine includes multiple groups of gravure printing rollers arranged side by side for printing different colors. The printed pattern on the substrate is dried by a hot oven, and then cooled by air cooling after drying.

[0041] Step C: Change the surface, turn over the base material, including the turning mechani...

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PUM

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Abstract

The present invention relates to a color printing process for packaging bags, which includes the following steps: step A: unwinding, unwinding the base material; step B: front color printing, printing one side surface of the base material; step C: Change the side, turn the substrate over and send the substrate forward along its original direction; step D: alignment, align the starting point of the printing roller pattern with the starting point of the front pattern of the substrate; step E: color printing on the reverse side, Printing on the opposite side of the printed surface in step B; step F: cooling, cooling the printed substrate; step G: winding, winding the cooled substrate. The present invention has the effect of being able to print on both sides of the substrate.

Description

technical field [0001] The invention relates to the field of packaging bag manufacturing, in particular to a color printing process for packaging bags. Background technique [0002] Packaging bags are used to pack all kinds of products. The food packaging bags are generally more than two layers of composite material packaging bags. At the same time, in order to clearly distinguish the outer packaging bags, they are often placed on the outer surface For the printing of colored patterns or text, the printing equipment for packaging bags generally uses high-speed gravure printing machines. [0003] The invention of the existing patent publication number CN109703174A provides a unit-type gravure printing machine, which includes an unwinding frame and a winding frame. The printing machine on the printing paper, the unwinding roller is connected with the unwinding roller in rotation, and the height of the unwinding roller can be adjusted according to the amount of printing paper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F9/06B41F9/00B41F17/00
CPCB41M1/14B41M7/00B41M7/009
Inventor 陈吉徐杰
Owner 海宁卡洛包装材料有限公司