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CN101398610B - Treatment fluid for removing black defect in plate or film and treatment method - Google Patents

Treatment fluid for removing black defect in plate or film and treatment method Download PDF

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Publication number
CN101398610B
CN101398610B CN2008102169593A CN200810216959A CN101398610B CN 101398610 B CN101398610 B CN 101398610B CN 2008102169593 A CN2008102169593 A CN 2008102169593A CN 200810216959 A CN200810216959 A CN 200810216959A CN 101398610 B CN101398610 B CN 101398610B
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Prior art keywords
film
dry plate
dichromate
black
defective
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CN2008102169593A
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CN101398610A (en
Inventor
郝明毅
侯广杰
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QINGYI PRECISION MASK MAKING (SHENZHEN) CO Ltd
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QINGYI PRECISION MASK MAKING (SHENZHEN) CO Ltd
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Publication of CN101398610A publication Critical patent/CN101398610A/en
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  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract

The invention relates to a treating liquid used for removing dark-point defects in a film or a dry plate. The treating liquid comprises a first reagent and a second reagent. The first reagent contains the following ingredients by weight percentages: 10-15% of inorganic acids, 10-15% of bichromate and 70-80% of deionized water; the second reagent contains 5-20% of a reductant and 80-95% of the deionized water by weight percentages. The invention also relates to a method for treating the dark-point defects in the film or the dry plate by the treating liquid. The treating liquid and the method provided in the invention are capable of removing dark-point defects in the dry plate or the film in a short time, without affecting the graphic layer or the emulsion layer of the dry plate/film, overcome the disadvantages of manual handling such as surface scratch of the dry plate or the film, graphic abnormity, surface contamination and the like, and reduce the rejection rate of the dry plate or the film resulting from the defects beyond repair or failure of manual repair.

Description

Remove the treating fluid and the disposal route of black defective in the dry plate or the film
[technical field]
The present invention relates to the mask industry, relate in particular to a kind for the treatment of fluid and disposal route thereof of removing black defective in the dry plate or the film.
[background technology]
Usually can use in the mask industry and be used to put down in writing figure; the ultra micron silver salt collotype (as: Emulsion-ultra-fine silver emulsion plate) of Word message and be used to put down in writing figure; the software silver film (film) of Word message; the dry plate and the film in manufacturing process because developer solution; material surface; developing trough polluted or developer solution expired; filtration unit lost efficacy; development product quantity is too much; manufacture factor affecting such as unit exception; the stain of being assembled by the polymerization of ferrous metal silver ion or other metal strong oxidizing property residue in the graphics field and forming is also referred to as black defective.These black spot like defect are because dry plate, film series products surface is polluted or developer solution contains a large amount of institute's silver halide or silver ion, in the process of developing, stick to product surface or find that with other strong oxidizing property metal due to chemical reaction, the Main Ingredients and Appearance great majority of stain are argent ion or other metal oxide.This type of defective can hinder seeing through of light in the use of product, need to remove normally to use.The manual repairing method of normal employing removes this type of defective (as: using scraper at microscopically stain manually to be struck off) in the industry at present, its shortcoming is the scuffing that artificial scraper repair operation causes product surface easily, figure scratches, and is difficult to after the surface contamination clean up; And this type of defective is subjected to defect size under artificial scraper repairing condition, the restriction of shape, position, less or exceed artificial and then can't remove during instrument repairing capacity limit when defective, or cause scrapping of product easily after manually striking off failure, just need make product again.
[summary of the invention]
Goal of the invention of the present invention provides a kind for the treatment of fluid of removing black defective in the dry plate or the film, does not influence the graph layer and/or the emulsion layer of dry plate, the film effectively to remove black defective fast.
To achieve the above object of the invention, the present invention proposes following technical scheme:
A kind for the treatment of fluid of removing black defective in the dry plate or the film comprises first medicament and second medicament, and described first medicament contains following component by weight percentage:
Mineral acid 10-15%,
Dichromate 10-15%,
Deionized water 70-80%;
Described second medicament contains following component by weight percentage:
Reductive agent 5-20%,
Deionized water 80-95%.
In the treating fluid of black defective, described mineral acid is to be selected from hydrochloric acid, sulfuric acid or nitric acid in the above-mentioned removal dry plate or the film; Described dichromate is to be selected from potassium dichromate, sodium bichromate or lithium bichromate.
In the treating fluid of black defective, described reductive agent is to be selected from thiocarbamide, sodium oxide molybdena or sulphuric dioxide in the above-mentioned removal dry plate or the film.
In the treating fluid of black defective, described second medicament contains following component by weight percentage in the above-mentioned removal dry plate or the film:
Reductive agent 10-15%,
Deionized water 85-90%,
Wherein said reductive agent is to be selected from thiocarbamide, sodium oxide molybdena or sulphuric dioxide.
Another object of the present invention is to, a kind of disposal route of removing black defective in the dry plate or the film is provided, it comprises the steps:
S1 at first confirms the position of black defective on dry plate or the film face, and diaphragm is pasted in the zone on face beyond the black defective;
S2 wipes examination and wetting black blemish surface with absolute ethyl alcohol and water respectively, again mineral acid-dichromate cleaning fluid is dripped at black blemish surface, place 10-30 second, black defective converts the yellow or the cyan marking to, and described mineral acid-dichromate cleaning fluid contains following component by weight percentage:
Mineral acid 10-15%,
Dichromate 10-15%,
Deionized water 70-80%,
S3 drips reductant solution then on the yellow or the cyan marking, 3-5 dries soup and gets final product after second, and described reductant solution contains following component by weight percentage:
Reductive agent 5-20%,
Deionized water 80-95%;
In the disposal route of black defective, also comprise repeating step S3 in the above-mentioned removal dry plate or the film, the step of eliminating fully until yellow or the cyan marking.
In the disposal route of black defective, described dropping inorganic acid-dichromate cleaning fluid and reductant solution are to finish at microscopically in the above-mentioned removal dry plate or the film.
In the disposal route of black defective, described mineral acid is to be selected from hydrochloric acid, sulfuric acid or nitric acid in the above-mentioned removal dry plate or the film; Described dichromate is to be selected from potassium dichromate, sodium bichromate or lithium bichromate.
In the disposal route of black defective, described reductive agent is to be selected from thiocarbamide, sodium oxide molybdena or sulphuric dioxide in the above-mentioned removal dry plate or the film.
The beneficial effect that above technical scheme had is, under the effect of mineral acid and dichromate, on dry plate or film face, form the silver salt of black spot like defect and/or the oxidized processing of materials such as amino acid in strong oxidizing property residue and the emulsion layer, under the effect of reductant solution, the stain after oxidation processes (being the yellow or the cyan marking) is bleached, reduced and further cleans then.Adopt treating fluid provided by the invention and disposal route, can remove the black spot like defect of the dry plate or the film within a short period of time, and can not have influence on the graph layer or the emulsion layer of dry plate/film, simultaneously in processing procedure owing to carry out the pad pasting protection for the zone beyond the black defective on plate/film face, treating fluid can not remain in product surface, can not pollute or damage other figure of product; This treating fluid and disposal route can substitute existing artificial treatment, and scuffing to product surface, figure are unusual, the defective of surface contamination thereby overcome, and have reduced because this type of defective can't be repaired or manually repair the product rejection rate that causes after the failure.
[description of drawings]
Shown in Figure 1 is the microscope view of black defective before processing in the dry plate or the film;
Shown in Figure 2 is the microscope view that adopts after traditional artificial treatment mode is handled the black defective in the dry plate or the film;
Shown in Figure 3 is the microscope view that adopts after first medicament provided by the present invention is handled the black defective in the dry plate or the film;
Shown in Figure 4 is the microscope view that adopts after second medicament provided by the present invention is handled the black defective in the dry plate or the film.
[embodiment]
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment 1
Get concentration and be 75% nitric acid 6.7 grams (effective content of nitric acid is 5 grams, water 1.7 grams), potassium dichromate 5 grams and join in the 88.3 gram deionized waters, stir, make nitric acid-dichromate cleaning fluid (first medicament); Get thiocarbamide 5 grams then and join in the 95 gram deionized waters, make reductant solution (second medicament).
Get dry plate/film, find the black spot like defect of dry plate face, mark in the position of the dry plate back side, and post the active graphical that diaphragm protects graph area at face with defective with black spot like defect; Be ready to non-dust cloth then, deionized water, absolute ethyl alcohol, cotton swab etc.; It is clean with near surface wiping examination black spot like defect surface and the defective to use non-dust cloth to be stained with absolute ethyl alcohol, re-using cotton swab gets wet behind the black spot like defect moistened surface, use cotton swab to be stained with sulfuric acid-dichromate cleaning fluid at microscopically (5X times of mirror) and drip on the black spot like defect surface, 10-30 after second this defective will disappear and form the latent yellow or the cyan marking; Use cotton swab to be stained with reductant solution then and drip at the yellow seal or above the cyan note, 3-5 after second the marking can disappear; Get wet with non-dust cloth at last and the soup on fault location surface is stained with dried, be stained with alcohol with non-dust cloth again and the water on dry plate/film surface is wiped examination totally get final product.
Examine under a microscope the yellow or the cyan marking and whether handle totally,, can repeat to drip reductant solution and handle, disappear until the marking if also have the slight marking.
Microscope view after employing first medicament that present embodiment provided and second medicament are handled the black defective in the film is respectively shown in accompanying drawing 3,4, as seen from the figure, be compared to the microscope view (Fig. 1) of black defective before handling and adopt microscope view (Fig. 2) after traditional artificial treatment mode is handled the black defective in the film, film face effect has had great improvement.
Embodiment 2
Get concentration and be 98% sulfuric acid 20.5 grams (effective content of sulfuric acid is 20 grams, water 0.5 gram), sodium bichromate 20 grams and join in the 59.5 gram deionized waters, stir, make sulfuric acid-dichromate cleaning fluid (first medicament); Get sodium oxide molybdena 20 grams then and join in the 80 gram deionized waters, make reductant solution (second medicament).
Get dry plate/film, find the black spot like defect of dry plate face, mark in the position of the dry plate back side, and post the active graphical that diaphragm protects graph area at face with defective with black spot like defect; Be ready to non-dust cloth then, deionized water, absolute ethyl alcohol, cotton swab etc.; It is clean with near surface wiping examination black spot like defect surface and the defective to use non-dust cloth to be stained with absolute ethyl alcohol, re-using cotton swab gets wet behind the black spot like defect moistened surface, use cotton swab to be stained with sulfuric acid-dichromate cleaning fluid at microscopically (5X times of mirror) and drip on the black spot like defect surface, 10-30 after second this defective will disappear and form the latent yellow or the cyan marking; Use cotton swab to be stained with reductant solution then and drip in yellow or above the cyan marking, 3-5 after second the marking can disappear; Get wet with non-dust cloth at last and the soup on fault location surface is stained with dried, be stained with alcohol with non-dust cloth again and the water on dry plate/film surface is wiped examination totally get final product.
Examine under a microscope the yellow or the cyan marking and whether handle totally,, can repeat to drip reductant solution and handle, disappear until the marking if also have the slight marking.
Embodiment 3
Get concentration and be 20% hydrochloric acid 50 grams (effective content of hydrochloric acid is 10 grams, water 40 grams), lithium bichromate 10 grams and join in the 40 gram deionized waters, stir, make hydrochloric acid-dichromate cleaning fluid (first medicament); Get sulphuric dioxide 10 grams then and join in the 90 gram deionized waters, make reductant solution (second medicament).
Get dry plate/film, find the black spot like defect of dry plate face, mark in the position of the dry plate back side, and post the active graphical that diaphragm protects graph area at face with defective with black spot like defect; Be ready to non-dust cloth then, deionized water, absolute ethyl alcohol, cotton swab etc.; It is clean with near surface wiping examination black spot like defect surface and the defective to use non-dust cloth to be stained with absolute ethyl alcohol, re-using cotton swab gets wet behind the black spot like defect moistened surface, use cotton swab to be stained with sulfuric acid-dichromate cleaning fluid at microscopically (5X times of mirror) and drip on the black spot like defect surface, 10-30 after second this defective will disappear and form the latent yellow or the cyan marking; Use cotton swab to be stained with reductant solution then and drip in yellow or above the cyan marking, 3-5 after second the marking can disappear; Get wet with non-dust cloth at last and the soup on fault location surface is stained with dried, be stained with alcohol with non-dust cloth again and the water on dry plate/film surface is wiped examination totally get final product.
Examine under a microscope the yellow or the cyan marking and whether handle totally,, can repeat to drip reductant solution and handle, disappear until the marking if also have the slight marking.
Embodiment 4
Get concentration and be 75% sulfuric acid 20 grams (effective content of sulfuric acid is 15 grams, water 5 grams), potassium dichromate 15 grams and join in the 65 gram deionized waters, stir, make sulfuric acid-dichromate cleaning fluid (first medicament); Get thiocarbamide 15 grams then and join in the 85 gram deionized waters, make reductant solution (second medicament).
Get dry plate/film, find the black spot like defect of dry plate face, mark in the position of the dry plate back side, and post the active graphical that diaphragm protects graph area at face with defective with black spot like defect; Be ready to non-dust cloth then, deionized water, absolute ethyl alcohol, cotton swab etc.; It is clean with near surface wiping examination black spot like defect surface and the defective to use non-dust cloth to be stained with absolute ethyl alcohol, re-using cotton swab gets wet behind the black spot like defect moistened surface, use cotton swab to be stained with sulfuric acid-dichromate cleaning fluid at microscopically (5X times of mirror) and drip on the black spot like defect surface, 10-30 after second this defective will disappear and form the latent yellow or the cyan marking; Use cotton swab to be stained with reductant solution then and drip in yellow or above the cyan marking, 3-5 after second the marking can disappear; Get wet with non-dust cloth at last and the soup on fault location surface is stained with dried, be stained with alcohol with non-dust cloth again and the water on dry plate/film surface is wiped examination totally get final product.
Examine under a microscope the yellow or the cyan marking and whether handle totally,, can repeat to drip reductant solution and handle, disappear until the marking if also have the slight marking.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.

Claims (5)

1. a treating fluid of removing black defective in the dry plate or the film comprises first medicament and second medicament, it is characterized in that described first medicament contains following component by weight percentage:
Mineral acid 10-15%,
Dichromate 10-15%,
Deionized water 70-80%;
Described second medicament contains following component by weight percentage:
Reductive agent 5-20%,
Deionized water 80-95%;
Wherein, described mineral acid is to be selected from hydrochloric acid, sulfuric acid or nitric acid; Described dichromate is to be selected from potassium dichromate, sodium bichromate or lithium bichromate; Described reductive agent is to be selected from thiocarbamide, sodium oxide molybdena or sulphuric dioxide.
2. the treating fluid of black defective in the removal dry plate according to claim 1 or the film is characterized in that described second medicament contains following component by weight percentage:
Reductive agent 10-15%,
Deionized water 85-90%.
3. a disposal route of removing black defective in the dry plate or the film comprises the steps:
S1 at first confirms the position of black defective on dry plate or the film face, and diaphragm is pasted in the zone on face beyond the black defective;
S2 wipes the wetting black blemish surface of examination with absolute ethyl alcohol and water respectively, again mineral acid-dichromate cleaning fluid is dripped at black blemish surface, place 10-30 second, black defective converts the yellow or the cyan marking to, and described mineral acid-dichromate cleaning fluid contains following component by weight percentage:
Mineral acid 10-15%,
Dichromate 10-15%,
Deionized water 70-80%,
Wherein, described mineral acid is to be selected from hydrochloric acid, sulfuric acid or nitric acid; Described dichromate is to be selected from potassium dichromate, sodium bichromate or lithium bichromate;
S3 drips reductant solution then on the yellow or the cyan marking, 3-5 dries soup and gets final product after second, and described reductant solution contains following component by weight percentage:
Reductive agent 5-20%,
Deionized water 80-95%;
Described reductive agent is to be selected from thiocarbamide, sodium oxide molybdena or sulphuric dioxide.
4. the disposal route of black defective is characterized in that in the removal dry plate according to claim 3 or the film, also comprises repeating step S3, eliminates fully until the yellow or the cyan marking.
5. the disposal route of black defective is characterized in that described dropping inorganic acid-dichromate cleaning fluid and reductant solution are to finish at microscopically in the removal dry plate according to claim 3 or the film.
CN2008102169593A 2008-10-23 2008-10-23 Treatment fluid for removing black defect in plate or film and treatment method Active CN101398610B (en)

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CN101398610B true CN101398610B (en) 2011-07-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111303883B (en) * 2019-10-28 2021-12-14 芯思杰技术(深圳)股份有限公司 A kind of etching solution and preparation method of chip mesa

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047527A (en) * 1990-06-05 1990-12-05 北京炼焦化学厂工商服务开发总公司 Clean-out system
US5118356A (en) * 1990-11-19 1992-06-02 Eastman Kodak Company Process for cleaning a photographic processing device
US5441665A (en) * 1992-08-19 1995-08-15 Medefield Pty Ltd Photographic equipment cleaner
CN1249533A (en) * 1998-09-25 2000-04-05 住友电气工业株式会社 Epitaxial wafer, its mfg method and method for surficial cleaning of compound semiconductor substrate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047527A (en) * 1990-06-05 1990-12-05 北京炼焦化学厂工商服务开发总公司 Clean-out system
US5118356A (en) * 1990-11-19 1992-06-02 Eastman Kodak Company Process for cleaning a photographic processing device
US5441665A (en) * 1992-08-19 1995-08-15 Medefield Pty Ltd Photographic equipment cleaner
CN1249533A (en) * 1998-09-25 2000-04-05 住友电气工业株式会社 Epitaxial wafer, its mfg method and method for surficial cleaning of compound semiconductor substrate

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SE01 Entry into force of request for substantive examination
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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Treatment fluid for removing black defect in plate or film and treatment method

Effective date of registration: 20131023

Granted publication date: 20110727

Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Qingyi Precision Maskmaking (Shenzhen) Co., Ltd.

Registration number: 2013990000769

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Date of cancellation: 20150616

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Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Qingyi Precision Maskmaking (Shenzhen) Co., Ltd.

Registration number: 2013990000769

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Treatment fluid for removing black defect in plate or film and treatment method

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Granted publication date: 20110727

Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Qingyi Precision Maskmaking (Shenzhen) Co., Ltd.

Registration number: 2015990000498

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Date of cancellation: 20160607

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Pledgor: Qingyi Precision Maskmaking (Shenzhen) Co., Ltd.

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