CN1200412A - Tech. for mfg. metallic photograph by photochemical etching - Google Patents
Tech. for mfg. metallic photograph by photochemical etching Download PDFInfo
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- CN1200412A CN1200412A CN 97110673 CN97110673A CN1200412A CN 1200412 A CN1200412 A CN 1200412A CN 97110673 CN97110673 CN 97110673 CN 97110673 A CN97110673 A CN 97110673A CN 1200412 A CN1200412 A CN 1200412A
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- metal
- metallic surface
- photochemical etching
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Abstract
The invention relates to a kind of technique for making metal photograph by means of photochemical etching process. It is characterized by using photochemical etching process to make removal working treatment on metal surface and utilizing the removal working depth variation to represent the tones distribution and gradations of the matter so as to form a vivid image with clear gradations on the metal surface with a certain smooth finish. The metal picture or metal photograph manufactured by said invention is rich in gradations and clear in detail, so that it is an art work with stronger ornamental property and long storage time.
Description
Photochemical etching is manufactured the metal photograph technology and is belonged to a kind of ornament---the manufacture technology of metal photograph.
In the prior art, form the technology of pattern in the metallic surface by photochemical etching processing, adopt the method for sketching the contours the profile frame mostly, be about to material object and make egative film in the mode of solid line bar, pass through exposure imaging, on metal sheet, form the pattern formed by photoresists, it is carried out chemical corrosion processing, form the pattern of concavo-convex lines composition, set off picture by being coated with the paint vehicle of certain color at recess or electroplating other color and luster metal at last; Or utilize the screening color separation, and photo in kind being turned over make the pattern of forming by real point (black), the density that distributes by real point embodies level in kind, adopts the sensitization technology to produce the pattern of being made up of the etching point of even depth in the metallic surface.Back kind method is enhanced on the details in kind in performance than preceding a kind of method, but still can't show effect of light on material object and the visual tone light and shade continuous transition that forms changes.Thereby picture is more mechanical, and performance is dull flat, can't show variations in detail in kind.
The objective of the invention is to design a kind of photochemical etching processing technology, produce levels are rich in the metallic surface, have the photo visual effect metal landscape, be metal photograph.
Content of the present invention is, photochemical etching is manufactured the metal photograph technology, it is characterized in that carrying out the removal processing of photochemical etching in the metallic surface, according to the processing stand of metallic surface different depths or face because the characteristics of the tone difference that light diffuse-reflectance phenomenon forms, utilize the variation reflection tonal variation in kind of removing working depth, make metallic surface form the image true to nature that has gradation sense clearly with certain smooth finish.
The work program of above-mentioned photochemical etching is:
A) produce the clear cloudy sheet that reflects the continuous variation tone of having of details in kind of energy;
B) choose and be suitable for making the sheet metal of metal photograph clearly, it is cut into certain specification,, the metallic surface roughness is reached below the Ra0.01, and metal sheet is carried out oil removal treatment by mechanical workout and follow-up polishing means;
C) utilize the sensitization technology, produce the positive case of the cloudy sheet effect of reflection that forms by the different thickness photosensitive layer at metal sheet surface;
D) chemical corrosion is carried out in the above-mentioned metallic surface that is loaded with the photoresists pattern, utilize the difference of the glue-line required time of certain density chemical corrosion liquid infiltration different thickness, etch the processing stand of different depths or the pattern that face is formed in the metallic surface.
E) clean striping;
F) be coated with transparency protected lacquer;
G) mounting.
Above-mentioned making metal sheet surface photoresists method of patterning is, utilize carbon tissue to do photoresists, with making the mask of ready-made cloudy sheet as the photoresists pattern, implement exposure after making mask and carbon tissue adsorbed close, the carbon tissue glue face that then exposure is finished sticks to be implemented on the metal sheet face to develop.
The etching reagent that is adopted is FeCl
3, Baume specific concentration Be40～45 of corrosive fluid, temperature is 20～25 ℃, humidity is 75.
Design of the present invention is, remove in the metallic surface and to add man-hour, its working depth difference, the light diffuse-reflectance causes visual tone also to there are differences, if working depth is continuous variation, then its tone that reflects also is a continually varying, the corresponding variation that is converted into the metal working depth of deep or light variation with picture tone on the common photo, if there is notable difference in the color and luster of treated metallic surface with the color and luster of removing the generation of processing back, just then can present photo true to nature on the metallic surface.
Be one embodiment of the present of invention below, further specify details of the present invention with present embodiment.
1. producing can the clear cloudy sheet that reflects the continuous variation tone of having of former scenery details
At first be provided at the black and white or the photochrome of metallic surface pattern to be processed, utilize the photoengraving means or utilize electronic scanning technique to produce the black and white film that can clearly reflect details in kind, this film is cloudy sheet, is used as the mask that metallic surface in the subsequent technique forms photoresists pattern against corrosion.
2. prepare metallic surface to be processed
Choose the metal sheet that is suitable for making clear metal photograph it is cut to certain specification,, the metallic surface roughness is reached below the Ra0.01 by mechanical workout and polishing means.Present embodiment selects stainless steel materials as the material of manufacturing metal photograph, and through polishing, its surfaceness is Ra0.01, and this stainless steel materials is done oil removal treatment with the metal detergent aqueous solution after polishing.
The metallic substance that is used to make metal photograph also must carry out strict oil removal treatment after polishing, so that photoresists against corrosion and metal sheet secure adhesion in the subsequent technique.Employed oil removing means are prerequisite not damage metallic surface gloss.
3. make metallic surface photoresists pattern
A) select for use carbon tissue to do photoresists, because it has the function that induction is transferred continuously.Carbon tissue is to apply gelatinum on the paper substrate carrier, belong to the dry film class, this gelatinum is subjected to the rayed after fixing, its cured thickness is influenced by light intensity, illumination is the cured thickness height strongly then, otherwise cured thickness is little, so just can the black and white of pattern on the mask film be transferred by exposure to change the continuous variation that is converted into photoresists cured thickness size continuously.
B) carbon tissue sensitizing.Commercially available carbon tissue does not have photosensitivity, must make it have photosensitivity its sensitization before use.Sensitizing solution is 3～5% ammonium dichromate, and also available potassium bichromate is carried out sensitization, in order to make the carbon tissue softness after the sensitization, needs to add a little glycerine in the sensitizing solution sometimes.During sensitization sensitizing solution filtered and pour in the clean container, the not sensitization carbon tissue that is cut into certain specification is lain in the sensitizing solution of container, when carbon tissue becomes by curling when straight, then sensitization time arrives.Carbon tissue after the sensitization is tiled in through trying on the clean smooth sheet glass with magnesiumcarbonate and talcum brush, puts into the aeration cabinet drying.Dry environment is: dustless, temperature is 15～18 ℃, and humidity is 65～75, and be 4 hours general time of drying.Carbon tissue glue face before the sensitization is numb shape, and the carbon tissue glue face after the sensitization is bright and clean, zero defect.
C) carbon tissue exposure
To look picture size and the metal sheet shape is cut into certain size through the carbon tissue of sensitization, then mask is covered on the carbon tissue glue face, to good picture position, notice that the positive apparent time of picture should be reverse side, mask (cloudy sheet) and carbon tissue are fixed, put into printer then and vacuumize with adhesive tape, make mask and carbon tissue adsorbed close (the carbon tissue operation after the sensitization all is to carry out) under red light, after be sure oing that absorption finishes, open the exposure lamp source, implement exposure.Used light source is good with fluorescent lamp.Time shutter is depended on light intensity and exposure distance, and the concrete time can be determined by experiment.General power is 400W, and both 10 40W fluorescent lamps, lamp are when being 600 millimeters, and the used time shutter is 4 minutes.
D) carbon tissue transferring
The carbon tissue transferring is about to carbon tissue and adheres on the metal sheet.After the carbon tissue exposure finishes, carbon tissue is taken out from printer, glue faces down and covers on the metal sheet surface that passes through oil removal treatment and dried up, the check and correction good position, carbon tissue one end is fixed on the metal sheet face with adhesive tape, start carbon tissue then, water deionized water to whole metal sheet face, the deionized water temperature is advisable with 15 ℃.The carbon element letterweight is bonded on the metal sheet face with rubber roll while watering.This is because carbon tissue glue-line water-swellable depends on physical action to stick on the metal covering.Notice that watering the water yield should be paved with whole metal sheet face less and equably.The purpose that adopts the deionized water transferring is to destroy picture effect in case there is impurity particle to stick on the glue-line.
E) develop
Tear the fixedly adhesive tape of usefulness off, the metal sheet of having crossed version is immersed in 40 ℃ the warm water, warm water makes paper substrate throw off the glue face by soaking into paper substrate.In order to accelerate the paper substrate wetting-out rate, can be before the immersion warm water earlier with soaking into the cotton cleansing tissue basal plane of alcohol till all becoming dark color.Generally need about 2 minutes time approximately, paper substrate just can be taken off like a cork, note this moment keeping water temperature about 40～45 ℃, soak the time about 1 minute again, just available cotton wiping glue face gently in water, this moment is a large amount of red under the glue emaciated face, till the metallic surface presents clearly the photoresists pattern.Have a shower whole plate face again with drying up whole plate face with tap water.In order to accelerate rate of drying, also can pour alcohol into to whole plate face in the back of having a shower, dry up then.So far, the photoresists design producing finishes on the metal sheet face.
4. corrosion
To have the metal sheet periphery of photoresists pattern and paint at the back side or wide adhesive tape protects.
During corrosion, corrosive fluid makes cured layer expand earlier, and then infiltration solidification layer, arrive metallic matrix and metal generation chemical reaction at last, in identical etching time, the actual etching time of metal under the different thickness cured layer is different, reaches selectively the continuous of mask pattern transferred the corresponding continuous variation that is converted into etch depth by controlling its whole space of a whole page etching time like this, forms the metal landscape with photo visual effect thereby reach.
Because the carbon tissue glue-line to water sensitive, is noted the concentration 〉=Be40 of its Baume ratio when therefore preparing corrosive fluid, the employing etching reagent is a neutral salt.The Baume specific concentration of corrosive fluid is Be40 in the present embodiment, and etching reagent is FeCl
3
During corrosion, corrosive fluid soaks into glue-line, and the glue-line thinnest part corrodes at first, and it etching time takes place is called etching time just.Just etching time is relevant with corrosive fluid concentration and temperature, and concentration is low more, and temperature is high more, and then just etching time is short more, otherwise then long more.Also relevant, moist more simultaneously with the environment humidity, then just etching time is short more.Just etching time short partially and partially length all be disadvantageous, first etching time is short partially, is indicating the admissible etching time weak point of whole metal sheet face, the erosion phenomenon easily took place in picture lofty tone position, the etching level of destruction etched pattern.Just etching time is oversize, is indicating that then whole metal sheet face needs corrosion for a long time, and is not only uneconomical, but also may make the low-key position destroy fine and smooth level because of etching time is oversize.Comparatively ideal corrosion temperature is 20～25 ℃, and humidity is 75.Etching time is decided according to the picture situation, generally needs 10～20 minutes.
5. striping
After corrosion finishes, with tap water flushing metal sheet face, pay special attention to wash down the corrosion raffinate on the plate face immediately, this moment, carbon tissue glue-line water-swellable came off from metal sheet, exposed the etching picture.Tear protective tapes, remove protection paint, handle the pros and cons of clean whole metal sheet, and with drying up.
6. be coated with transparency protected lacquer
With the acrylic acid varnish brush or be sprayed on the front (picture) of metal sheet, in drying baker, to dry then, temperature is 100 ℃.After this handled, the etching picture just can not stay stain because of finger touch.Adopt the electrophoresis way at last, transparent acrylic acid electrocoating paint is covered on the metal picture.
7. mounting
With the metal photograph after handling properly, choose suitable color harmony skeleton construction mounting.
So far the metal landscape manufacture craft is all finished.
Effect of the present invention is can form in the metal surface to have continuous transition accent, levels are rich and details The metal landscape that has clearly the photo effect, i.e. metal photograph. This kind photo be a kind of sight stronger and The art work with long preservation period.
Claims (4)
1. photochemical etching is manufactured the metal photograph technology, it is characterized in that carrying out the removal processing of photochemical etching in the metallic surface, according to the processing stand of metallic surface different depths or face because light diffuse-reflectance phenomenon produces the characteristics of tone difference, utilize the variation reflection tone in kind of removing working depth to distribute and level, make metallic surface form the photorealism that has gradation sense clearly with certain smooth finish.
2. photochemical etching according to claim 1 is manufactured the metal photograph technology, it is characterized in that the work program of above-mentioned photochemical etching is:
A) produce the clear cloudy sheet that reflects the continuous variation tone of having of details in kind of energy;
B) choose and be suitable for making the sheet metal of metal photograph clearly, it is cut into certain specification,, the metallic surface roughness is reached below the Ra0.01, and metal sheet is carried out oil removal treatment by mechanical workout and follow-up polishing means;
C) utilize the sensitization technology, produce the positive case of the cloudy sheet effect of reflection that forms by the different thickness photosensitive layer at metal sheet surface;
D) chemical corrosion is carried out in the above-mentioned metallic surface that is loaded with the photoresists pattern, utilize the difference of the glue-line required time of certain density chemical corrosion liquid infiltration different thickness, etch the processing stand of different depths or the pattern that face is formed in the metallic surface.
E) clean striping;
F) be coated with transparency protected lacquer;
G) mounting.
3. photochemical etching according to claim 2 is manufactured the metal photograph technology, it is characterized in that making metal sheet surface photoresists method of patterning is, utilize carbon tissue to do photoresists, with making the mask of ready-made cloudy sheet as the photoresists pattern, implement exposure after making mask and carbon tissue adsorbed close, the carbon tissue glue face that then exposure is finished sticks to be implemented on the metal sheet face to develop.
4. photochemical etching according to claim 3 is manufactured the metal photograph technology, it is characterized in that, the etching reagent of employing is FeCl
3, the Baume specific concentration of corrosive fluid is Be40～45, and temperature is 20～25 ℃, and humidity is 75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97110673 CN1200412A (en) | 1997-05-26 | 1997-05-26 | Tech. for mfg. metallic photograph by photochemical etching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97110673 CN1200412A (en) | 1997-05-26 | 1997-05-26 | Tech. for mfg. metallic photograph by photochemical etching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1200412A true CN1200412A (en) | 1998-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97110673 Pending CN1200412A (en) | 1997-05-26 | 1997-05-26 | Tech. for mfg. metallic photograph by photochemical etching |
Country Status (1)
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| CN (1) | CN1200412A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343079C (en) * | 2004-05-17 | 2007-10-17 | 高绿荣 | Method for manufacturing coloured copperplate etching |
| CN1946958B (en) * | 2004-04-26 | 2010-05-26 | 阿尔斯托姆科技有限公司 | Method for producing lamellae for a lamellar seal |
| CN102499139A (en) * | 2011-10-26 | 2012-06-20 | 浙江海洋学院 | Wire tag manufacture device |
| CN101226334B (en) * | 2008-02-01 | 2013-03-27 | 南昌印钞厂 | Mirror plane erosion carving gravure technique |
| CN105383219A (en) * | 2015-11-24 | 2016-03-09 | 张洪岩 | Metal plate painting method and metal plate painting |
| CN106283171A (en) * | 2016-09-20 | 2017-01-04 | 青岛德隆装备有限公司 | A kind of barrel of beer metal tag corrodes electroplating preparation method |
| CN107466940A (en) * | 2017-07-04 | 2017-12-15 | 浙江海洋大学 | The metal magnetic line mark producing device of shark |
| CN107466941A (en) * | 2017-07-04 | 2017-12-15 | 浙江海洋大学 | The metal magnetic line mark manufacture device of needlefish |
-
1997
- 1997-05-26 CN CN 97110673 patent/CN1200412A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946958B (en) * | 2004-04-26 | 2010-05-26 | 阿尔斯托姆科技有限公司 | Method for producing lamellae for a lamellar seal |
| CN100343079C (en) * | 2004-05-17 | 2007-10-17 | 高绿荣 | Method for manufacturing coloured copperplate etching |
| CN101226334B (en) * | 2008-02-01 | 2013-03-27 | 南昌印钞厂 | Mirror plane erosion carving gravure technique |
| CN102499139A (en) * | 2011-10-26 | 2012-06-20 | 浙江海洋学院 | Wire tag manufacture device |
| CN102499139B (en) * | 2011-10-26 | 2014-09-17 | 浙江海洋学院 | Wire tag manufacture device |
| CN105383219A (en) * | 2015-11-24 | 2016-03-09 | 张洪岩 | Metal plate painting method and metal plate painting |
| CN106283171A (en) * | 2016-09-20 | 2017-01-04 | 青岛德隆装备有限公司 | A kind of barrel of beer metal tag corrodes electroplating preparation method |
| CN107466940A (en) * | 2017-07-04 | 2017-12-15 | 浙江海洋大学 | The metal magnetic line mark producing device of shark |
| CN107466941A (en) * | 2017-07-04 | 2017-12-15 | 浙江海洋大学 | The metal magnetic line mark manufacture device of needlefish |
| CN107466940B (en) * | 2017-07-04 | 2020-09-08 | 浙江海洋大学 | Shark metal magnetic line marking device |
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