Method for producing lamination-free anti-curl automatic labeling label

Abstract

The invention relates to a method for producing a lamination-free anti-curl automatic labeling label, belonging to the field of printing technologies. According to the method, a surface finishing process for printed products adopts printer online overprinting instead of the original laminating process, the printing is realized through material preparing, CTP (Computer to Plate) plate-making and plate-discharging, and multi-machine combination, and in particular, an all-in-one machine, which is formed in a manner that a six-color or seven-color printing machine is linked with an overprinting unit printer and a paper collecting and drying unit, is adopted to realize the completion of production by one-time paper skipping; and meanwhile, the consumption of spraying powder is reduced, the transparency of the printed products is improved, and the drying time is shortened. Various physical indicators of obtained products all reach or exceed the service properties of the original laminated labels, so that the green and the low consumption are achieved.

Description

technical field [0001] The invention relates to a production method of a film-free anti-curl automatic labeling label, which belongs to the technical field of printing and dyeing. Background technique [0002] The wide application of labels and the continuous development of label varieties have naturally promoted the development of label printing technology. How to improve production efficiency, improve product quality and reduce environmental pollution has become the development direction of label printing technology. [0003] In order to protect the label from moisture, water, dirt, wear, folding, and chemical corrosion, the commonly used label printing technology in the prior art is to use an off-line lamination process. There are several key points in the off-line printing lamination process: [0004] 1. The use of a large amount of powder spraying increases the rate of film rejection. [0005] In order to prevent printing from sticking and assist drying, powder spray...

AI Technical Summary

Problems solved by technology

[0006] Disadvantages of a large amount of powder coating process: ①Reduce the brightness and scratch resistance of printed matter

②When laminating, if the printed matter is sprayed with too much powder, it cannot be completely dissolved by the glue, and a large area of ​​snowflake failure may occur

③Contaminate the surface of the machine and the blanket, causing environmental impact on the production workshop

[0007] 2. The use of off-line laminating machine lamination technology increases the production process, resulting in the extension of the production cycle, and at the same time increases the uncontrollable quality risk

[0008] In the traditional process, each process is carried out separately, and materials need to be transferred in the middle, which increases the input of manpower and material resources, and prolongs the production cycle. Deformation, contamination, abrasion and other problems

[0009] 3. The use of lamination is not environmentally friendly, and it is easy to cause the label to curl in reverse

[0010] The label coating material is generally a refractory polymer film, which has high recycling costs and is not an environmentally friendly choice

[0011] At the same time, in the label structure, due to the difference in technical indicators such as the surface tension and moisture absorption of the two materials of paper and film, the label curls and warps

In addition, the coated paper is too thin, water content, loose paper, poor flatness, high pressure, high temperature, long time during lamination, low ambient temperature and high humidity will cause curling and deformation of the laminated label

Such problems have long affected the production efficiency of high-speed filling and labeling