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Printing method

A technology for printing coatings and inks, which can be used in printing, printing devices, etc., to solve problems such as jagged edges of markings

Inactive Publication Date: 2015-05-13
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a method of printing, which is used to solve the problem of the edge of the logo when the surface of the elastic coating is printed with ink with high gloss due to the high surface roughness of the elastic coating in the prior art. There will be a technical problem of jaggedness, and the technical effect that jaggedness will not appear on the edge of the logo when printing the logo with high-gloss ink on the surface of the elastic coating

Method used

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Embodiment 1

[0063] In the embodiment of this application, taking printing the logo on the back of the tablet computer as an example, ink printing is performed three times. After the three printings are completed, the schematic diagram of the surface structure of the bottom plate is as follows figure 2 shown.

[0064] In the specific implementation process, the following steps are included:

[0065] Step 1: Before printing, the workpiece needs to be pretreated according to the substrate 21 , that is, the material of the back of the tablet computer and product requirements, such as grinding, polishing, and degreasing.

[0066] Step 2: Form a colored paint coating 22 on the substrate 21 by spraying, and then dry it. In the embodiment of the present application, silver colored paint is used as an example.

[0067] The third step: spray on the paint coating 22 to form an elastic coating 23, and dry it. In the embodiment of the application, the elastic coating 23 is a transparent coating.

...

Embodiment 2

[0073] In the embodiment of this application, taking the printed matter as the back cover of a smart phone as an example, the logo of this smart phone has always been a black logo, printed at the center of the bottom of the back cover, and for the purpose of using the smart phone The elastic feel is better. This smartphone uses an elastic coating sprayed on the surface of the back cover to achieve a better elastic feel. The surface roughness of the elastic sub-coating detected by the roughness detector is 46 μm, but human It cannot be felt by touch.

[0074] In a practical application, it is assumed that the smartphone has always used a black logo. Since a smartphone usually has casings of different colors, the back covers of the smartphone are respectively white and black as an example. When the matte black logo is printed on the white back cover, the logo will appear very eye-catching and highly recognizable, but when the matte black logo is printed on the black back cover, ...

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Abstract

The invention discloses a printing method. The printing method comprises the steps that an elastic coating is formed on a substrate through spraying; a first kind of ink with the granularity as a first value is utilized for carrying out printing on the elastic coating to obtain a first printing coating; and a second kind of ink with the granularity as a second value is utilized for carrying out printing on the first printing coating to obtain a second printing coating, wherein the second value is smaller than the first value. The method is used for solving the technical problem that in the prior art, due to the fact that the surface roughness of the elastic coating is high, when ink with higher glossiness is utilized for printing marks on the surface of the elastic coating, the sawtooth phenomenon can appear at the edges of the marks. The technical effect that when the ink with higher glossiness is utilized for printing the marks on the surface of the elastic coating, the sawtooth phenomenon cannot appear at the edges of the marks is achieved.

Description

technical field [0001] The invention relates to the field of printing, in particular to a printing method. Background technique [0002] As electronic products are used more and more frequently, people pay more and more attention to the feel of electronic products. Elastic coatings are widely used on the shells of consumer electronics because they can provide softness similar to human skin. In order to ensure a comfortable Elastic feel, the elastic coating is much thicker than the non-elastic coating, generally more than 50 μm. At the same time, we need to form a groove with a certain depth on the surface of the product shell to accommodate the company and / or brand logo. In order to highlight the identity of the brand, the logo generally needs a high-brightness effect. For example, the high-brightness effect can be achieved by making the logo with electroformed nickel material. [0003] In order to ensure that the logo can be accurately and firmly pasted in the correspondi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/26
Inventor 尤德涛
Owner LENOVO (BEIJING) CO LTD
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