CN101787232B - Waste plastics printing product surface ink cleaning agent and preparation method thereof - Google Patents
Waste plastics printing product surface ink cleaning agent and preparation method thereof Download PDFInfo
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- CN101787232B CN101787232B CN2010103004082A CN201010300408A CN101787232B CN 101787232 B CN101787232 B CN 101787232B CN 2010103004082 A CN2010103004082 A CN 2010103004082A CN 201010300408 A CN201010300408 A CN 201010300408A CN 101787232 B CN101787232 B CN 101787232B
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Abstract
The invention discloses a waste plastics printing product surface ink cleaning agent which comprises the following components based on parts by weight: 20-30 parts of organic esters, 5-10 parts of sodium salt, 5-8 parts of disodium ethylene diamine tetraacetate, 5-10 parts of OP-10 and 42-65 parts of diluent. The preparation method of the cleaning agent comprises the steps of: putting the diluent into a container, and heating to 25-35 DEG C; adding the organic esters into the container, stirring and leading the organic esters to be dissolved in the diluent; then, in the stirring process, continuously adding the OP-10 into the container, and leading the OP-10 to be fully and evenly mixed; and finally, in the stirring process, sequentially adding the sodium salt and the disodium ethylene diamine tetraacetate into the container, stirring and obtaining the cleaning agent. The invention has the advantages of good cleaning effect, rapid speed, near neuter cleaning solution, no need of heating when in deinking, low volatility, extremely low toxicity, no hurt for human body and little environmental pollution.
Description
Technical field
The invention belongs to the printed apcksging material technical field, be specifically related to a kind of waste plastics printing product surface ink cleaning agent and preparation method thereof.
Background technology
The recycling of plastics printing waste is an important technology in solid waste reuse field.For most of plastics printing; The surface all is printed on versicolor printing ink usually, if these printing ink are not effectively cleaned, directly granulation not only can make reprocessed plastic(s) particle color mix; Class is extremely low, but also causes ageing of plastics, reuse degradation easily.
At present; China's waste or used plastics cleaning industry all adopts the deinking of highly basic method more than 80%, promptly adopt stirred pot, at high temperature adds caustic soda (NaOH) heat and washes; This method not only wastes energy, and the thick smoke that produces in the technological process also causes serious pollution to surrounding enviroment with the strong basicity waste water of washing material.Few partly plastic cleaning industry is type detergent for ink with an organic solvent, but because a large amount of organic solvent of ketone of using, the clean-out system volatility is fast, and toxicity is bigger, and operator are had bigger harm, and environmental pollution is big.
Summary of the invention
The purpose of this invention is to provide a kind of waste plastics printing product surface ink cleaning agent, solved strong, the corrodibility problem big, big for environment pollution of Cleaning Wastewater alkalescence that exists in the existing strong basicity waste or used plastics printing ink cleaning technique; The a large amount of employing ketone toxic volatile organic solvents that exist in the existing solvent-borne type waste or used plastics printing ink cleaning technique, the problem that toxicity is big, volatilization is fast have also been solved simultaneously.
Another object of the present invention provides the preparation method of above-mentioned waste plastics printing product surface ink cleaning agent.
The technical scheme that the present invention adopts is; A kind of waste plastics printing product surface ink cleaning agent; Press mass fraction, form: 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, 5～10 parts of OP-10,42～65 parts of thinners by following component.
Wherein, organosilane ester is alkyl acetates or n-Butyl lactate.
Its characteristics are that further alkyl acetates is n-butyl acetate, N-BUTYL ACETATE or vinyl acetic monomer.
Wherein, sodium salt is sodium sulfite anhy 96, tripoly phosphate sodium STPP or water glass.
Wherein, thinner is that concentration is 70% ethanolic soln or water.
Another technical scheme that the present invention adopts is that the preparation method of above-mentioned waste plastics printing product surface ink cleaning agent comprises following operation steps:
Step 1,
Take by weighing 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, 5～10 parts of OP-10,42～65 parts of thinners;
Step 2,
Earlier thinner is placed container, and thinner is heated to 25～35 ℃; Organosilane ester is added in the container, evenly reinforced, fully stirring is dissolved in the thinner organosilane ester again; In whipping process, in container, continue to add OP-10 then, make its thorough mixing even; In whipping process, in container, successively add sodium salt and EDTA Disodium at last, stir, promptly make clean-out system of the present invention.
Wherein, organosilane ester is alkyl acetates or n-Butyl lactate.
Its characteristics are that further alkyl acetates is n-butyl acetate, N-BUTYL ACETATE or vinyl acetic monomer.
Wherein, sodium salt is sodium sulfite anhy 96, tripoly phosphate sodium STPP or water glass.
Wherein, thinner is that concentration is 70% ethanolic soln or water.
The invention has the beneficial effects as follows that this clean-out system prescription is simple, cleaning performance is good, and speed is fast; To waste plastic film class printing, clean back plastic, transparent Du Keda first more than 90%.Carrying out need not adding any alkaline reagents when the waste or used plastics printing product surface ink cleans, do not add ketone toxic volatile organic solvent, cleaning solution is near neutral; Need not heat during deinking; Volatility is little, and toxicity is extremely low, and human body is not had injury; Environmental pollution is little, and plastics reuse performance is had no adverse effects.The applicable waste or used plastics printing of clean-out system of the present invention comprises: waste PP, PE film printing, and waste or used plastics woven bag printing, plastic flexible package printings such as carafe are particularly useful for removing and cleaning of waste PP, PE plastics film surface ink.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
Waste plastics printing product surface ink cleaning agent provided by the invention is pressed mass fraction, is made up of following component: 42～65 parts of 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, OP-105～10 part, thinners.
At present, plastic printing is most of to adopt the intaglio printing mode, because frosting is difficult to infiltration, Gu gravure ink generally adopts the form of volatile dry to carry out dry set, the gravure printing ink of employing is generally solvent type ink.Solvent-borne type plastic gravure printing ink generally contains a large amount of organic solvents, like toluene, YLENE, Virahol, ethanol, ETHYLE ACETATE, propyl acetate, pentyl acetate, ketone, ethyl ketone, acetone, butanone etc.Because benzene class and organic solvent of ketone have stronger toxicity, adopt alcohols and organosilane ester as solvent so environmentally friendly gravure ink now more.According to the similar compatibility principle, this ink used for plastic clean-out system selects for use organosilane ester as ink remover, accelerates cleaning speed.
The main effect of sodium salt and EDTA Disodium is to play to quicken the expansion of printing ink effectively, and the disperse ink particle stops ink particle to assemble or be deposited on once more the purpose of frosting.EDTA Disodium also produces complexing action to the waste or used plastics surface residual little metal ion of possibility, thereby prevents the decomposition of metals ion to clean-out system, to play the effect of stablizing clean-out system.
OP-10 is as tensio-active agent, makes that removing the printing ink that gets off can be dispersed in the water fast, will remove the printing ink that gets off when being convenient to follow-up flushing and all remove.
Simultaneously, EDTA Disodium and OP-10 also will play emulsification, dispersion, effect such as wetting, help the raising of clean-out system cleaning performance.
The effect of thinner mainly is the dissolving organic ester.
The invention provides the preparation method of above-mentioned clean-out system prescription, comprise following operation steps:
Step 1,
Take by weighing 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, 5～10 parts of OP-10,42～65 parts of thinners;
Step 2,
Earlier thinner is placed container, and thinner is heated to 25～35 ℃; Organosilane ester is added in the container, evenly reinforced, fully stirring is dissolved in the thinner organosilane ester again; In whipping process, continue then in container, to add OP-10, make its thorough mixing even; In whipping process, in container, successively add sodium salt and EDTA Disodium at last, stir, promptly make clean-out system of the present invention.
Utilize detergent for ink provided by the invention to clean the method for waste plastics printing product surface ink:
Step 1: waste or used plastics printing water is carried out necessary preliminary cleaning, mainly is to wash residues such as surperficial dust, silt, packing material detritus;
Step 2: the waste or used plastics printing after will tentatively cleaning cuts grows into 0.5～3cm, and wide is the fritter of 0.5～3cm;
Step 3: in the waste or used plastics printing fritter input clean-out system of the present invention that will cut, agitator stirs;
Step 4: clean after 3～10 minutes, take out, wash with a small amount of clear water once more, accomplish whole cleaning process with cleaning the plastics printing of accomplishing;
Step 5: can carry out granulation again after cleaning the plastics film drying of accomplishing.
Embodiment 1
Step 1,
Take by weighing 30 parts of n-butyl acetates, 10 parts of sodium sulfite anhy 96s, 8 parts of EDTA Disodiums, 10 parts of OP-10,42 parts of concentration and be 70% ethanolic soln;
Step 2,
Be that 70% ethanolic soln places container earlier, and ethanolic soln is heated to 25 ℃ concentration; Again n-butyl acetate is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, n-butyl acetate is dissolved in the ethanolic soln; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds sodium sulfite anhy 96 and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample A of the present invention.
Embodiment 2
Step 1,
Take by weighing 25 parts of N-BUTYL ACETATEs, 8 parts of water glass, 6 parts of EDTA Disodiums, 10 parts of OP-10,50 parts of concentration and be 70% ethanolic soln;
Step 2,
Be that 70% ethanolic soln places container earlier, and ethanolic soln is heated to 30 ℃ concentration; Again N-BUTYL ACETATE is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, N-BUTYL ACETATE is dissolved in the ethanolic soln; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds water glass and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample B of the present invention.
Embodiment 3
Step 1,
Take by weighing 25 parts of vinyl acetic monomers, 6 parts of sodium sulfite anhy 96s, 6 parts of EDTA Disodiums, 8 parts of OP-10,55 parts of water;
Step 2,
Earlier water is placed container, and heat water to 25 ℃; Again vinyl acetic monomer is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, vinyl acetic monomer is dissolved in the water; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds sodium sulfite anhy 96 and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample C of the present invention.
Embodiment 4
Step 1,
Take by weighing 20 parts of n-butyl acetates, 8 parts of tripoly phosphate sodium STPPs, 8 parts of EDTA Disodiums, 10 parts of OP-10,55 parts of concentration and be 70% ethanolic soln;
Step 2,
Be that 70% ethanolic soln places container earlier, and ethanolic soln is heated to 35 ℃ concentration; Again n-butyl acetate is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, n-butyl acetate is dissolved in the ethanolic soln; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds tripoly phosphate sodium STPP and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample D of the present invention.
Embodiment 5
Step 1,
Take by weighing 30 parts of n-Butyl lactates, 5 parts of tripoly phosphate sodium STPPs, 5 parts of EDTA Disodiums, 10 parts of OP-10,50 parts of water;
Step 2,
Earlier water is placed container, and heat water to 25 ℃; Again n-Butyl lactate is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, n-Butyl lactate is dissolved in the water; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds tripoly phosphate sodium STPP and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample E of the present invention.
Embodiment 6
Step 1,
Take by weighing 20 parts of n-Butyl lactates, 5 parts of sodium sulfite anhy 96s, 5 parts of EDTA Disodiums, 5 parts of OP-10,65 parts of water;
Step 2,
Earlier water is placed container, and heat water to 35 ℃; Again n-Butyl lactate is added in the container, evenly reinforced, adopt mechanical stirring (200r/min) to stir, n-Butyl lactate is dissolved in the water; Reduce mechanical stirring speed then, low whipping speed is under the condition of 100r/min, in container, continues to add OP-10 while stirring, makes its thorough mixing even; Last still low whipping speed is under the condition of 100r/min, in container, successively adds sodium sulfite anhy 96 and EDTA Disodium while stirring, stirs, and promptly makes clean-out system sample F of the present invention.
Adopt clean-out system of the present invention and other kind clean-out system that the waste or used plastics printing is cleaned, specifically test contrast situation (to PP, PE film printing) like following table 1:
Table 1 clean-out system of the present invention and other clean-out system are specifically tested comparing result
Annotate: 1. transparency is 70～75% before cleaning; 2. transparency is mainly to film class printings such as PP, PE.
Compare with currently available products, clean-out system prescription of the present invention is simple, cleaning performance good, cleaning speed is fast, toxicity is little, non-corrosiveness; To waste plastic film class printing, clean back plastic, transparent Du Keda first more than 90%.Carrying out need not adding any alkaline reagents when the waste or used plastics printing product surface ink cleans, do not add ketone toxic volatile organic solvent, cleaning solution is near neutral; Need not heat during deinking, volatility is little, and toxicity is extremely low; Human body is not had injury, and environmental pollution is little, non-corrosiveness; Waste or used plastics reuse performance is had no adverse effects, reached the request for utilization of waste or used plastics printing product surface ink cleaning agent.And it is little to clean back waste water environmental pollution load.
Claims (6)
1. a waste plastics printing product surface ink cleaning agent is characterized in that, presses mass fraction, is made up of following component: 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, 5～10 parts of OP-10,42～65 parts of thinners; Described organosilane ester is: alkyl acetates or n-Butyl lactate; Described sodium salt is: sodium sulfite anhy 96, tripoly phosphate sodium STPP or water glass.
2. detergent for ink according to claim 1 is characterized in that, described alkyl acetates is: n-butyl acetate or vinyl acetic monomer.
3. detergent for ink according to claim 1 is characterized in that, described thinner is: concentration is 70% ethanolic soln or water.
4. according to the preparation method of the said detergent for ink of claim 1, it is characterized in that, comprise following operation steps:
Step 1,
Take by weighing 20～30 parts of organosilane esters, 5～10 parts of sodium salts, 5～8 parts of EDTA Disodiums, 5～10 parts of OP-10,42～65 parts of thinners;
Step 2,
Earlier thinner is placed container, and thinner is heated to 25～35 ℃; Organosilane ester is added in the container, evenly reinforced, fully stirring is dissolved in the thinner organosilane ester again; In whipping process, in container, continue to add OP-10 then, make its thorough mixing even; In whipping process, in container, successively add sodium salt and EDTA Disodium at last, stir, promptly make waste plastics printing product surface ink cleaning agent;
Described organosilane ester is: alkyl acetates or n-Butyl lactate;
Described sodium salt is: sodium sulfite anhy 96, tripoly phosphate sodium STPP or water glass.
5. according to the preparation method of the said detergent for ink of claim 4, it is characterized in that described alkyl acetates is: n-butyl acetate or vinyl acetic monomer.
6. according to the preparation method of the said detergent for ink of claim 4, it is characterized in that described thinner is: concentration is 70% ethanolic soln or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010103004082A CN101787232B (en) | 2010-01-18 | 2010-01-18 | Waste plastics printing product surface ink cleaning agent and preparation method thereof |
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| CN2010103004082A CN101787232B (en) | 2010-01-18 | 2010-01-18 | Waste plastics printing product surface ink cleaning agent and preparation method thereof |
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| CN101787232A CN101787232A (en) | 2010-07-28 |
| CN101787232B true CN101787232B (en) | 2012-01-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102585609A (en) * | 2012-01-17 | 2012-07-18 | 范旸旸 | Blackboard writing fluid and color fading water thereof |
| CN103254675A (en) * | 2012-02-16 | 2013-08-21 | 汉达精密电子(昆山)有限公司 | Solution capable of removing water transfer printing film and preparation method thereof |
| CN103589223B (en) * | 2013-11-05 | 2015-07-01 | 南京信息工程大学 | Water soluble printing ink cleaning agent and preparation method thereof |
| CN106752296A (en) * | 2017-01-19 | 2017-05-31 | 陕西大风印务科技股份有限公司 | A kind of film gravure ink scavenger and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050323A (en) * | 2007-04-24 | 2007-10-10 | 华南理工大学 | Cleaning agent for ink printed on surface of plastic and preparation method |
| CN101434764A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Printing ink cleaning agent |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050323A (en) * | 2007-04-24 | 2007-10-10 | 华南理工大学 | Cleaning agent for ink printed on surface of plastic and preparation method |
| CN101434764A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Printing ink cleaning agent |
Non-Patent Citations (1)
| Title |
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| JP特开2005-154317A 2005.06.16 |
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Granted publication date: 20120111 Termination date: 20180118 |