Process for printing characters on polytetrafluoroethylene workpiece

A polytetrafluoroethylene and workpiece technology, used in printing, printing devices, etc., can solve the problems of character adhesion ink temperature resistance and solvent resistance not meeting the requirements for use, and improve product appearance quality and thin character lines. The effect of uniformity and improvement of printing quality

Active Publication Date: 2013-12-25
SICHUAN HUAFENG ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the traditional screen printing method is used, the printing surface needs to be polarized first, and if there is no special ink, the adhesion of the printed characters, the temperature resistance of the ink, and the solvent resistance cannot meet the requirements for use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The technique of printing characters on the polytetrafluoroethylene workpiece described in the present embodiment comprises the following steps:

[0021] a. Mechanically process the PTFE material to obtain the PTFE workpiece, and control the smoothness of the printing surface of the PTFE workpiece to 1.6 μm;

[0022] B, adopt chloroform solvent to clean the polytetrafluoroethylene workpiece gained in the step a, remove the oil stain and impurity on the printed surface of the polytetrafluoroethylene workpiece, and dry naturally;

[0023] c. Use a manual roller printing tool to evenly coat the high-temperature ribbon ink with a color difference ΔE of 120 from the PTFE workpiece substrate on the surface of the PTFE workpiece to be printed to form a layer of ink ribbon printing layer;

[0024] d. Put the polytetrafluoroethylene workpiece prepared in step c into an oven and bake at a temperature of 150° C. for 1 hour to solidify the ink;

[0025] e, adopt laser printing mod...

Embodiment 2

[0027] The technique of printing characters on the polytetrafluoroethylene workpiece described in the present embodiment comprises the following steps:

[0028] a. Mechanically process the PTFE material to obtain the PTFE workpiece, and control the smoothness of the printing surface of the PTFE workpiece to 2.0 μm;

[0029] B, adopt chloroform solvent to clean the polytetrafluoroethylene workpiece gained in the step a, remove the oil stain and impurity on the printed surface of the polytetrafluoroethylene workpiece, and dry naturally;

[0030] c. Use a manual roller printing tool to evenly coat 7224 light blue imported high-temperature ribbon ink on the surface of the PTFE workpiece to be printed to form a layer of ink ribbon printing layer;

[0031] d. Put the polytetrafluoroethylene workpiece prepared in step c into an oven and bake at a temperature of 170° C. for 1 hour to solidify the ink;

[0032] e. Printing characters on the printed surface of the polytetrafluoroethyle...

Embodiment 3

[0034] A kind of technique of printing characters on polytetrafluoroethylene workpiece described in the present embodiment, comprises the following steps:

[0035] a. Mechanically process the PTFE material to obtain the PTFE workpiece, and control the smoothness of the printed surface of the PTFE workpiece to 3.2 μm;

[0036] B, adopt chloroform solvent to clean the polytetrafluoroethylene workpiece gained in the step a, remove the oil stain and impurity on the printed surface of the polytetrafluoroethylene workpiece, and dry naturally;

[0037] c. Use a manual roller printing tool to evenly coat the high-temperature ribbon ink with a color difference ΔE of 250 from the PTFE workpiece substrate on the surface of the PTFE workpiece to be printed to form a layer of ink ribbon printing layer;

[0038] d. Put the polytetrafluoroethylene workpiece prepared in step c into an oven and bake at a temperature of 160° C. for 1.5 hours to cure the ink;

[0039] e, adopt laser printing mo...

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Abstract

The invention discloses a process for printing characters on a polytetrafluoroethylene workpiece. With the adoption of the process, the function of printing the characters on the polytetrafluoroethylene workpiece is realized through the steps of polytetrafluoroethylene material pre-processing, workpiece surface treatment, workpiece surface printing ink printing, printing ink solidifying, character printing and the like. The process has the beneficial effect that the function that the characters can be printed without polarization on the surface of a polytetrafluoroethylene material is realized in manners of coating a layer of high-temperature printing ink that is large in color contrast with the polytetrafluoroethylene workpiece and can better permeate into the surface of the polytetrafluoroethylene material on the surface of the polytetrafluoroethylene workpiece and then carrying out laser printing or screen printing; and the process is simple, the cost is low, and the definition of the printed characters is improved, so that the product appearance quality is greatly improved.

Description

technical field [0001] The invention relates to a printing process, in particular to a process for printing characters on polytetrafluoroethylene workpieces. Background technique [0002] Polytetrafluoroethylene (PTFE), commonly known as "Teflon", "Plastic King". This material has good heat resistance (can be used for a long time at -250℃~260℃), solvent resistance, weather resistance and insulation performance, and is a kind of insulation that can be used in high voltage, high temperature and high humidity environment for a long time. material, but the surface polarity of the material is very low, making it difficult to print on the surface. [0003] In terms of design, the PTFE rod is machined to obtain the insulating mounting plate parts on the connector. There are 56 holes on the mounting plate (the minimum hole spacing is 2.6mm), and the hole numbers need to be printed on the front and back of the holes, and the printing position is very narrow (the font must be smalle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M1/30
Inventor 廖松涛张勇强
Owner SICHUAN HUAFENG ENTERPRISE GRP
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