CN108602091A - The coating stripping means of application fixture - Google Patents
The coating stripping means of application fixture Download PDFInfo
- Publication number
- CN108602091A CN108602091A CN201680025821.8A CN201680025821A CN108602091A CN 108602091 A CN108602091 A CN 108602091A CN 201680025821 A CN201680025821 A CN 201680025821A CN 108602091 A CN108602091 A CN 108602091A
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- China
- Prior art keywords
- coating
- fixture
- application
- agent
- water paint
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention provides a kind of method removed to the coating for being attached to application fixture comprising the process for making water paint remover combination be contacted with fixture with the application for being attached with coating, above-mentioned application are the fixtures implemented transpassivation and handled with fixture.
Description
Technical field
The present invention relates to the application works that can remove effectively the various coated objects headed by the coating process by automobile
The coating stripping means of accompanying on application fixture used in sequence, accumulation solidification or uncured coating or film.
Background technology
Application fixture is used in the various coating process headed by the coating process by automobile, still, if coating attachment,
These application fixtures are piled up in, then workability or function can reduce, it is therefore desirable to be shelled at regular intervals from application with fixture
From removing solidification or uncured coating.
As the application fixture used in the coating process for applying the coated object headed by being filled with automobile, example can be enumerated
Such as mask clamp, bamboo curtain splint and paint booth.As the method for removing accompanying film on these application fixtures, always with
Come, it is proposed that various methods：(i) use makees coating remover as main component with organic solvents such as dichloromethane, diluents
Method；(ii) by the method to be used after caustic alkali waterborne cleaning agent heating as main component；(iii) it is burned
The method of processing；And the method that (iv) assigns physical vibration or impact using hammer, scraper plate etc.；(v) coating will be prevented attached
The method that the silicone resin or fluororesin are applied.
It is applied however, method (i) is used as due to the use of the chlorine series solvent such as the incendivities such as dimethylbenzene, ketone solvent or dichloromethane
Expect remover, it is therefore desirable to which countermeasure of igniting is saved and prevented to operating environment from damage.This method is in toxicity, foul smell, inflammability and waste liquid
Processing etc. occupational healths, environmental pollution aspect there are many problems.Especially shelled with dichloromethane coating as main component
It is noted and is applied flexibly extensively used as the prior art from agent, it can be difficult to using in the morbidity for worrying cholangiocarcinoma
Deng in the present situation to the influence of human body.Method (ii) is problematic in safety since the concentration of alkaline agent is high.About common
Caustic alkali, its a concentration of 5% or more in the case of, the harmful substance being designated as in poisonous substance and violent in toxicity regulation law, because
This processing is more miscellaneous.In addition, method (iii) due to the generation with poisonous fume, exists in terms of atmosphere pollution
Problem.In turn, method (iv) is not only difficult to that discreet portions are completely exfoliated, but also the danger for keeping the deformation of application fixture damaged
Height, there are the extremely low difficult points of operating efficiency.Method (v) can not entirely prevent the attachment of coating, of high cost, and worry there is application
Shrinkage cavity, therefore do not popularize.By above-mentioned method (i)~method (v), exists and be difficult to all lacking except attachment removal coating
Point.
As other methods, there are following methods：Priming paint is pre-coated with to the part of the attachment coating of application fixture,
After coating adheres to accumulation to a certain extent in coating process, the method removed using water paint remover or solvent
(such as patent document 1).In the case where being removed using water paint remover, with regard to polyvinyl alcohol, polyvinylpyrrolidine
For alkanone, water-soluble propenoic-acids resin, etherified cellulose etc. (patent document 2,3,4,5,6), it can add for using pre-
The equipment such as dipping tank, the drying oven of paint or the process number for increasing them generate the burden in terms of operability, cost.
As the application stripping priming paint of oil type, highly viscous lubricating grease is cheap and effective, therefore is widely used, but
It is to be easy to be dissolved in solvent system coating, or there are shrinkage cavities in water paint, and the coating fallen by unattached is caused to cause
The productivities such as application product are bad reduce, and lubricating grease sheet is as high pollution, therefore the pollution of ambient enviroment also becomes problem.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2002-275394
Patent document 2：Japanese Unexamined Patent Publication 2000-191961
Patent document 3：Japanese Unexamined Patent Publication 8-134386
Patent document 4：Japanese Unexamined Patent Publication 4-149284
Patent document 5：Japanese Unexamined Patent Publication 63-209771
Patent document 6：Japanese Unexamined Patent Publication 62-246973
Invention content
The subject that the invention solves
It is an object of the invention to：A kind of coating and film are provided in view of the actual conditions in the as described above field
Stripping means can remove effectively the application fixture used in the various coating process headed by the coating process of automobile
The upper accompanying solidification accumulated or uncured coating or film.
Means for solving the problems
The present invention provides the method removed to the coating for being attached to application below fixture (hereinafter sometimes referred to as
" coating stripping means ").
A kind of 1. methods that the coating being attached to application fixture is removed of item comprising water paint remover is made to combine
The process that object is contacted with the application for being attached with coating with fixture, above-mentioned application are the fixtures implemented transpassivation and handled with fixture.
Method of the item 2. according to item 1, wherein Passivation Treatment is that chemical nickel plating handles or plate hard chrome processing.
Method of the item 3. according to item 1 or 2, which is characterized in that water paint remover combination contains (a) water, (b) height boiling
Point solvent and (c) solvable agent.
Method of the item 4. according to item 3, wherein water paint remover combination also contains alkaline agent.
Method of the item 5. according to item 3 or 4, wherein high boiling solvent is selected from aromatic alcohols, aromatic ether, furfuryl alcohol, N-
One or more of methyl pyrrolidone and its derivative.
Method of the item 6. according to any one of item 3~5, wherein solvable agent is selected from alkanol ammonium, aklylene glycol, Asia
One or more of alkylene glycol alkyl ether, alkoxy aryl ether, arylsulphonate.
Method of the item 7. according to any one of item 4~6, wherein alkaline agent is selected from sodium hydroxide, potassium hydroxide, polyphosphoric acid
One or more of sodium, sodium carbonate.
Invention effect
Even if unwanted coating is accumulated in attachment on the application fixture for implementing transpassivation processing, if make its with it is aqueous
Coating remover combination contacts, then makes to generate cracking on attachment coating, and water paint remover combination is permeated into cracking,
The epithelium of attachment coating can be made to dissolve, be swollen.Attachment coating floats from the surface of application fixture and easily and completely shells
From, therefore even if can be easily peeled off if the position of more difficult release coating as the corner of application fixture, bending section etc.
Accompanying, accumulation coating.
Specific implementation mode
Accompanying on application fixture, accumulation is solidification or uncured coating and film, in the method for the present invention
In, coating and film are removed and removed together.Therefore, the coating removed using the method for the present invention includes film sometimes.
The advance application fixture for carrying out transpassivation processing is used in the coating stripping means of the present invention.
As Passivation Treatment, chemical nickel plating processing, the processing of plating hard chrome, plating nickel chromium triangle processing etc. can be enumerated.
As application fixture, can enumerate the applications such as hammer, fixture, bamboo curtain splint apparatus, painting device, paint robot arm and
Inner wall, flooring element of paint booth etc..
The thickness of passive state epithelium based on Passivation Treatment is not particularly limited, usually 1~100 μm or so, preferably 5~
80 μm or so, more preferably 10~50 μm or so.If the thickness of epithelium is excessively thin, be unable to get sufficient peeling effect and can not
Coating is removed completely, or the unfavorable condition caused by coating is removed is generated when application is handled with fixture.If in addition, blocked up,
A problem that then generating cost increase, uniform plating can not being implemented with fixture to the application of complicated shape.
In the coating stripping means of the present invention, the application fixture for being attached with coating or film is made to be removed with water paint
Agent composition contacts, and thus carries out coating stripping.
The coating of accompanying accumulation can be uncured coating on application fixture, can also be it is coating material solidified or
Film.
As the coating more than usage, the thermosetting coating (trimerization used in the coating process of automobile can be enumerated
Cyanamide alkyd resin, epoxy resin, polyurethane resin etc.).
It is molten that the water paint remover combination used in the film stripping means of the present invention contains (a) water, (b) higher boiling
Agent, (c) solvable agent.Water paint remover combination is without containing previous used dichloromethane.
High boiling solvent is the solvent for including oxygen atom and/or nitrogen-atoms as polar group, in water paint remover
Coordinated with the amount for being dissolved in water in composition.The amount that high boiling solvent is dissolved in water can be improved using solvable agent.
As (b) high boiling solvent, the aromatic ethers such as the aromatic alcohols such as benzylalcohol, phenyl methyl ether, furfuryl alcohol, N- can be enumerated
Methyl pyrrolidone, N-Methyl pyrrolidone derivative (such as 2-Pyrrolidone, N- ethyl-2-pyrrolidones, N- fourths
Base -2-Pyrrolidone, 5- N-methyl-2-2-pyrrolidone Ns, N-Phenyl-2-Pyrrolidone, N- cyclohexyl -2- pyrroles
Alkanone, N- ethoxys -2-Pyrrolidone).
(c) solvable agent is selected from alkanol ammonium, aklylene glycol, alkylene glycol monoalkyl ethers, arylsulphonate, DMF (two
Methylformamide), DMSO (dimethyl sulfoxide (DMSO)), glycol ethers (Propylene Glycol, methyl diethylene glycol, methyl triethylene glycol, methyl
Polyethylene glycol, ethohexadiol, ethyl diethylene glycol, ethyl triethylene glycol, ethyl polyethylene glycol, propyl glycol, propyl two
Ethylene glycol, propyl triethylene glycol, propyl polyethylene glycol, butyl glycol, butyl diglycol, butyl triethylene glycol, butyl are poly-
Ethylene glycol etc.), ethyl glycol acetate (butyl glycol acetate, ethyl glycol acetate, Propylene Glycol acetic acid esters, butyl
Diethylene glycol acetic acid esters, ethyl diethylene glycol acetic acid esters, methyl diethylene glycol acetic acid esters etc.), methyl phenyl ethers anisole.
As alkanol ammonium, ethanol amine, Propanolamine, butanolamine can be illustrated.As aklylene glycol, ethylene glycol, third can be illustrated
Glycol, diethylene glycol etc..As alkylene glycol monoalkyl ethers, diethylene glycol monoethyl ether can be illustrated.As arylsulphonate,
Benzene sulfonic acid sodium salt, toluenesulfonic acid sodium salt etc. can be illustrated.
(a) use level is usually 5 mass %~70 mass % relative to water paint remover combination total amount, and preferably 10
The mass of quality %~50 %.
(b) use level is usually the 10 mass % of mass %~90, preferably 30 matter relative to coating remover combination total amount
Measure the mass of %~70 %.
(c) use level is usually the 5 mass % of mass %~50, preferably 10 matter relative to coating remover combination total amount
Measure the mass of %~30 %.
The water paint remover combination of the present invention can be neutral (pH6~8), or alkaline (pH8 or more).
For alkalinity, in addition to (a)~(c), it can also contain (d) alkaline agent ingredient.If using alkanol ammonium as solvable agent,
Even if obtained if then without containing alkaline agent be more than pH7 composition.
As alkaline agent, sodium hydroxide, potassium hydroxide, polyphosphate sodium, sodium carbonate etc. can be enumerated.
As long as the type of coating remover is according to the type of attachment coating, attachment thickness and by the material etc. of object to be processed
Suitably select.
The water paint remover combination used in the present invention can include hydrophily imparting agent, nonionic in addition to water
Property the additives such as surfactants, levelling agent, antiseptic, mould resistant, thickener, antirust agent, the antifoaming agent such as surfactant make
For the ingredient other than above-mentioned record.As these additives, conventionally known additive can be used.The cooperation of these additives
It is usually 0~10 mass % or so that amount, which is respectively relative to usual coating remover combination total amount, preferably 0.5~5 mass %
Left and right, more preferably 1~3 mass % or so.
In preferred 1 embodiment, coating stripping means of the invention makes to be attached with including the use of dipping, coating etc.
The process that the application fixture of coating is contacted with coating remover.
As exfoliation temperature, usually 5 DEG C~100 DEG C or so, preferably 50 DEG C~90 DEG C or so, more preferably 70 DEG C~
90 DEG C or so.
As splitting time, usually 10~480 minutes or so, preferably 15~60 minutes or so.
After being contacted with water paint remover using dipping, coating etc., using washing process by film from application fixture
Application after washing off and drying can be recycled with fixture.In the coating stripping means of the present invention, since film is complete
Fully stripped, therefore even if in the case where being recycled, the closely sealed bad of coating will not occur when forming coating epithelium.
Embodiment
Hereinafter, being further illustrated the present invention by embodiment.
[embodiment 1~13 and comparative example 1~9]
The application fixture used in experiment
Plating hard is implemented with 10 μm of film thickness to the treadmill test piece (70mm × 50mm × 0.8mm) of cold-rolled steel sheet (SPCC-SD)
Chromium handles (A-1).In addition, implementing chemical nickel plating with 10 μm of film thickness handles (A-2).
In addition, as comparative example, to cold-rolled steel sheet (SPCC-SD；A-1), rolled steel for general structure (SS400；
A-2 treadmill test piece (70mm × 50mm × 0.8mm)) is reused without Passivation Treatment after directly carrying out acetone degreasing.
Stripping performance is evaluated
So that test film is impregnated in automobile component application aqueous white coating (Kansai Paint Co., Ltd's system) and is lifted, by
This coating coating carries out toasting for 30 minutes at 140 DEG C later.After toasting application, it is impregnated into and is heated to 50 DEG C or 70 DEG C of water
Property coating remover in, measure until coating be fully exfoliated removing until time.The composition of water paint remover such as table 1
It is shown.
Test film, remover, the result of stripping performance evaluation (exfoliation temperature and splitting time) are as shown in Table 2,3.
By using the stripping means of the present invention, so as to carry out the stripping of coating or film in a short time and under low temperature
From.
【Table 1】
The water paint remover composition used in benchmark test (numerical value unit is wt% in table)
| B-1 | N-1 | N-2 | N-3 | N-4 | N-5 | N-6 | N-7 | |
| Water | 33 | 10 | 10 | 25 | 10 | 45 | 10 | 10 |
| Benzylalcohol | 40 | 70 | 70 | 50 | 70 | 40 | ||
| Furfuryl alcohol | 70 | |||||||
| N-Methyl pyrrolidone | 70 | |||||||
| Diethylene glycol monoethyl ether | 20 | |||||||
| Diethylene glycol | 20 | 25 | 20 | 20 | ||||
| Propylene glycol | 20 | |||||||
| Toluenesulfonic acid sodium salt | 15 | 15 | ||||||
| Potassium hydroxide | 2 |
【Table 2】
【Table 3】
Claims (7)
1. a kind of method removed to the coating for being attached to application fixture comprising make water paint remover combination
The process contacted with fixture with the application for being attached with coating, the application are the fixtures for being implemented with Passivation Treatment with fixture.
2. according to the method described in claim 1, wherein,
Passivation Treatment is that chemical nickel plating handles or plate hard chrome processing.
3. method according to claim 1 or 2, which is characterized in that
Water paint remover combination contains (a) water, (b) high boiling solvent and (c) solvable agent.
4. according to the method described in claim 3, wherein,
Water paint remover combination also contains alkaline agent.
5. method according to claim 3 or 4, wherein
High boiling solvent is one kind in aromatic alcohols, aromatic ether, furfuryl alcohol, N-Methyl pyrrolidone and its derivative
More than.
6. the method according to any one of claim 3~5, wherein
Solvable agent is selected from alkanol ammonium, aklylene glycol, alkylene glycol monoalkyl ethers, arylsulphonate, DMF, DMSO, two
One or more of alcohol ether, ethyl glycol acetate, methyl phenyl ethers anisole.
7. the method according to any one of claim 4~6, wherein
Alkaline agent is selected from one or more of sodium hydroxide, potassium hydroxide, polyphosphate sodium, sodium carbonate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/082780 WO2018083775A1 (en) | 2016-11-04 | 2016-11-04 | Method for removing coating material from coating jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108602091A true CN108602091A (en) | 2018-09-28 |
Family
ID=62076897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680025821.8A Pending CN108602091A (en) | 2016-11-04 | 2016-11-04 | The coating stripping means of application fixture |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108602091A (en) |
| WO (1) | WO2018083775A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0985137A (en) * | 1995-09-26 | 1997-03-31 | Hosokawa Micron Corp | Electrostatic powder coating device and hanging jig for electrostatic powder coating |
| JP2002275394A (en) * | 2001-03-21 | 2002-09-25 | Neos Co Ltd | Aqueous coating-removing agent |
| JP2004250573A (en) * | 2003-02-20 | 2004-09-09 | Neos Co Ltd | Aqueous coating remover |
| JP2005013955A (en) * | 2003-06-27 | 2005-01-20 | Kaneka Corp | Masking tool or spray coating method using the same |
| CN105462461A (en) * | 2014-09-30 | 2016-04-06 | 株式会社尼欧斯 | Waterborne primer composition for peeling coating and coating peeling method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2821485B2 (en) * | 1989-04-14 | 1998-11-05 | 株式会社ネオス | Paint remover |
| JPH08218010A (en) * | 1995-02-13 | 1996-08-27 | Neos Co Ltd | Water-soluble coating release agent |
| JPH08325490A (en) * | 1995-05-31 | 1996-12-10 | Yuho Chem Kk | Paint remover |
| JP2987619B2 (en) * | 1997-06-11 | 1999-12-06 | 株式会社英布 | Electrostatic powder coating equipment |
| JP4488681B2 (en) * | 2003-01-31 | 2010-06-23 | 関東化成工業株式会社 | Cleaning liquid for cleaning uncured paint or undried paint adhering to mask jig for painting, cleaning method and apparatus using the same |
-
2016
- 2016-11-04 CN CN201680025821.8A patent/CN108602091A/en active Pending
- 2016-11-04 WO PCT/JP2016/082780 patent/WO2018083775A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0985137A (en) * | 1995-09-26 | 1997-03-31 | Hosokawa Micron Corp | Electrostatic powder coating device and hanging jig for electrostatic powder coating |
| JP2002275394A (en) * | 2001-03-21 | 2002-09-25 | Neos Co Ltd | Aqueous coating-removing agent |
| JP2004250573A (en) * | 2003-02-20 | 2004-09-09 | Neos Co Ltd | Aqueous coating remover |
| JP2005013955A (en) * | 2003-06-27 | 2005-01-20 | Kaneka Corp | Masking tool or spray coating method using the same |
| CN105462461A (en) * | 2014-09-30 | 2016-04-06 | 株式会社尼欧斯 | Waterborne primer composition for peeling coating and coating peeling method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018083775A1 (en) | 2018-05-11 |
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| PB01 | Publication | ||
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Application publication date: 20180928 |