CN102275448B - Manufacturing method of high-precision plastic panel with transparent patterns - Google Patents

Abstract

The invention discloses a manufacturing method of a high-precision plastic panel with transparent patterns, wherein a plastic panel and a manufacturing process are comprised. In a technical scheme adopted in the invention, firstly, a layer of light-shading paint is sprayed on the back face of a high-transmittance plastic panel, then the light-shading paint layer at positions to be formed with the transparent character patterns are etched and removed by using a photoetching method through a etching type laser coding machine, and the transparent plastic panel carrier is exposed to form hollow high-transmittance character patterns, so that the problems and defects of limited adaptability, vague outline of the transparent character patterns, miss-point flaws and covering unevenness in the prior art are eliminated. In the provided manufacturing method of the high-precision plastic panel with the transparent patterns, by means of spraying the light-shading paint and etching by laser, the purposes of universality, no limits, high-precision and clear outlines of the transparent character patterns, tight and even covering faces are achieved for the manufacturing of the plastic panel with the transparent patterns.

Description

The manufacture method of high meticulous printing opacity pattern plastic front board

Technical field

The present invention relates to a kind of manufacture method of plastic products, specifically be meant the manufacture method of a kind of high meticulous printing opacity pattern plastic front board that is used to make plastic front board with high meticulous, high printing opacity pattern.

Background technology

Printing opacity pattern plastic front board is that indication identification and a kind of of decorative use of being used for electronic product surfaces such as automobile instrument, household electrical appliance, panel computer, mobile phone see through the parts that the transparent characters pattern that on the plastic opaque panel, is provided with carries out the printing opacity demonstration with backlight.

Prior art is employed on the plastic front board of high printing opacity, and the method through silk screen printing or bat printing covers with the part that Opacifying pigment will need not show, the blank printing opacity pattern plastic front board of making of character pattern that needs are shown; Silk screen printing only is adapted at printing on the flat article, is not suitable on curved article, printing; Though bat printing is adapted at printing on the curved article; But large tracts of land covers bat printing and is easy to generate and bites a little and to produce quality such as covering is irregular bad because of the Opacifying pigment gage distortion, in addition; Levelling, imbibition characteristic because of pigment; The soft edge that all there is the printing opacity character pattern in two kinds of methods of silk screen printing and bat printing is unsharp bad, and therefore, prior art exists adaptability limitation, printing opacity character pattern soft edge, leak source flaw, hides irregular problems and shortcomings.

Summary of the invention

Problems and shortcomings to above-mentioned prior art existence; The present invention adopts elder generation at the back side of the plastic front board of high printing opacity spraying one deck opaque; Form the position of transparent characters pattern again at needs with delineation formula laser marker; Method with the bright erosion of photoetching is removed the etching of opaque layer; Expose transparent plastic front board carrier and form the technical scheme of the high printing opacity character pattern of hollow out; A kind of manufacture method of high meticulous printing opacity pattern plastic front board is provided, is intended to mode, make the making of printing opacity pattern plastic front board reach pervasive general nothing limitation, meticulous clear, the tight uniform purpose of cover-up surface of printing opacity character pattern profile height through spraying opaque and laser ablation.

The objective of the invention is to realize like this: a kind of manufacture method of high meticulous printing opacity pattern plastic front board; Comprise plastic front board, manufacture craft, wherein: described plastic front board is to adopt the panel goods of the colourless transparent plastic material of light transmittance >=90% through injection mo(u)lding;

Described manufacture craft is spraying, etching, and wherein, spraying comprises pre-treatment, spraying, curing drying;

Spraying:

Step 1, pre-treatment:

Carry out deoiling with the surface of the said plastic front board of absolute ethyl alcohol cleaning wiping earlier and handle, afterwards, place tunnel type infrared light drying tunnel through oven dry the plastic front board after handling, 30～45 ℃ of bake out temperatures, drying time 5 minutes, acquisition clean face plate;

Step 2, spraying:

With spray gun the acrylic coating of dark shading evenly is sprayed on the back side of clean face plate, 0.02～0.03 millimeter of coating thickness, afterwards; Place tunnel type infrared light drying tunnel through oven dry the plastic front board after the spraying; 45～50 ℃ of bake out temperatures, drying time 5 minutes obtains spraying oven dry panel;

Step 3, the drying of solidifying:

To spray oven dry panel standing and drying and solidify in 24 hours, and obtain coating and hide panel;

Etching:

The coating that coating is hidden panel up; Fixed clamp is on the workbench of delineation formula laser marker; Required character pattern is inputed to delineation formula laser marker, and delineation formula laser marker is removed shading coating etching in the position that coating covering panel need form character pattern with laser beam, exposes transparent plastic front board carrier; The hollow out etching forms high printing opacity character pattern, obtains high meticulous printing opacity pattern plastic front board goods.

The advantage of spraying process

Spraying process spraying opaque has no leak source, coating thickness evenly and the characteristics that are easy to control, so spraying process has overcome large tracts of land and covers bat printing and be easy to generate and bite a little and because of the irregular drawback of Opacifying pigment gage distortion generation covering.

The etching principle

The laser beam of delineation formula laser marker accumulates in the coating of being delineated with high energy density and hides panel surface, through burning etching, with the cover coating gasification finish on panel top layer; Because the highly transparent material does not have absorption to the energy of laser beam, so laser beam sees through the bottom carrier of the plastic front board of highly transparent, and the panel bottom of highly transparent is not produced cauterization effect; In addition, the digital control system control laser beam displacement of delineation formula laser marker, by the image and the position of input, accurately on coating covering panel surface, burning carves meticulous clear pattern of profile height or literal.

Above-mentioned; The present invention adopts elder generation at the back side of the plastic front board of high printing opacity spraying one deck opaque; Form the position of transparent characters pattern again at needs with delineation formula laser marker; Method with the bright erosion of photoetching is removed the etching of opaque layer; Expose transparent plastic front board carrier and form the technical scheme of the high printing opacity character pattern of hollow out, overcome prior art and had adaptability limitation, printing opacity character pattern soft edge, leak source flaw, hide irregular problems and shortcomings, the manufacture method of a kind of high meticulous printing opacity pattern plastic front board that is provided; Through the mode of spraying opaque and laser ablation, make the making of printing opacity pattern plastic front board reach pervasive general nothing limitation, meticulous clear, the tight uniform purpose of cover-up surface of printing opacity character pattern profile height.

The embodiment explanation

Below through specific embodiment the manufacture method of the meticulous printing opacity pattern of height of the present invention plastic front board is done further explain; The those skilled in the art can make high meticulous printing opacity pattern plastic front board with reference to the method that embodiment provides, but should not be construed as any restriction of the present invention.

Embodiment

Embodiment

The high printing opacity pattern of the name of an article: HX-DCS-MZ indication panel

HX-DCS-MZ plastic front board material: colourless polymethyl methacrylate (PMMA), light transmittance, 96%;

Make:

Manufacturing conditions, equipment

Environmental condition: dust-free workshop, relative humidity RH≤75%, 20～30 ℃ of temperature; Ambient pressure a: atmospheric pressure;

Preparation equipment: spray gun, exhausting spray booth, tunnel type infrared light drying tunnel, delineation formula laser marker;

Manufacture craft is spraying, etching,

Spraying: comprise pre-treatment, spraying, curing drying;

Step 1, pre-treatment:

Carry out deoiling with the surface of absolute ethyl alcohol cleaning wiping plastic front board earlier and handle, afterwards, place tunnel type infrared light drying tunnel through oven dry the plastic front board after handling, 30～45 ℃ of bake out temperatures, drying time 5 minutes, acquisition clean face plate;

Step 2, spraying:

With spray gun the acrylic coating of dark shading evenly is sprayed on the back side of clean face plate, 0.02～0.03 millimeter of coating thickness, afterwards; Place tunnel type infrared light drying tunnel through oven dry the plastic front board after the spraying; 45～50 ℃ of bake out temperatures, drying time 5 minutes obtains spraying oven dry panel;

Step 3, the drying of solidifying:

To spray oven dry panel standing and drying and solidify in 24 hours, and obtain coating and hide panel;

Etching:

The coating that coating is hidden panel up; Fixed clamp is on the workbench of delineation formula laser marker; Required character pattern is inputed to delineation formula laser marker, and delineation formula laser marker is removed shading coating etching in the position that coating covering panel need form character pattern with laser beam, exposes transparent plastic front board carrier; The hollow out etching forms high printing opacity character pattern, obtains the high printing opacity pattern of the HX-DCS-MZ indication panel goods of high meticulous printing opacity pattern.

Claims (1)

1. the manufacture method of one kind high meticulous printing opacity pattern plastic front board is characterized in that: comprise plastic front board, manufacture craft, described plastic front board is the colourless transparent plastic material that the adopts light transmittance >=90% panel goods through injection mo(u)lding;

Described manufacture craft is spraying, etching, and wherein, spraying comprises pre-treatment, spraying, curing drying;

Spraying:

Step 1, pre-treatment:

Carry out deoiling with the surface of the said plastic front board of absolute ethyl alcohol cleaning wiping earlier and handle, afterwards, place tunnel type infrared light drying tunnel through oven dry the plastic front board after handling, 30～45 ℃ of bake out temperatures, drying time 5 minutes, acquisition clean face plate;

Step 2, spraying:

With spray gun the acrylic coating of dark shading evenly is sprayed on the back side of clean face plate, 0.02～0.03 millimeter of coating thickness, afterwards; Place tunnel type infrared light drying tunnel through oven dry the plastic front board after the spraying; 45～50 ℃ of bake out temperatures, drying time 5 minutes obtains spraying oven dry panel;

Step 3, the drying of solidifying:

To spray oven dry panel standing and drying and solidify in 24 hours, and obtain coating and hide panel;

Etching:

The coating that coating is hidden panel up; Fixed clamp is on the workbench of delineation formula laser marker; Required character pattern is inputed to delineation formula laser marker, and delineation formula laser marker is removed shading coating etching in the position that coating covering panel need form character pattern with laser beam, exposes transparent plastic front board carrier; The hollow out etching forms high printing opacity character pattern, obtains high meticulous printing opacity pattern plastic front board goods.