CN1318925C - Regeneration method of refused powdered toner of laser printer or duplicater - Google Patents
Regeneration method of refused powdered toner of laser printer or duplicater Download PDFInfo
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- CN1318925C CN1318925C CNB2004100266393A CN200410026639A CN1318925C CN 1318925 C CN1318925 C CN 1318925C CN B2004100266393 A CNB2004100266393 A CN B2004100266393A CN 200410026639 A CN200410026639 A CN 200410026639A CN 1318925 C CN1318925 C CN 1318925C
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- 238000000034 method Methods 0.000 claims abstract description 34
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- 230000008929 regeneration Effects 0.000 claims abstract description 7
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- 238000009418 renovation Methods 0.000 claims description 14
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Abstract
The present invention discloses a regeneration method of refused powdered toner of a laser printer or a duplicater. Refused powdered toner is processed through methods of low temperature drying-friction dry cleaning-sorting to obtain a reusable powder toner raw material. Then, the reusable powder toner raw material serves as a principal raw material for manufacturing an original breed toner or other breed toner according to a traditional production dry toner technique to produce regeneration dry toner. The environmental pollution is greatly reduced by the present invention, and the triboelectrification characteristic of regeneration original breed powder toner or other breed powder toner is still like the powder toner made by an original plant. The breed powder toner keeps stable in various environment conditions, and can also be used on a laser printer or a printer. The present invention has the characteristics of good fluidity, no sticking to a heat roller, good fixing, clear image, no bottom ash, etc. The present invention also has the characteristics of high durability in a large quantity of copying process or a printing process.
Description
Technical field
The present invention relates to environmental technology field, the method that the powder toner of particularly a kind of laser printer that pollutes that will go out of use or used in copy machines is regenerated.
Background technology
Residual powder in the Delevoping cartridge that goes out of use, environmental pollution is very harmful, these diameters are at 1 to 10 micron particle monomer, human eye discover at all less than, it directly sucks people's lung by people's breathing, can be detrimental to health.Toner powder by residual 28 to 80 grams in each imaging cassette that goes out of use becomes dust calculating, and the annual whole world has this dust of tens thousand of tons might enter atmosphere, has greatly polluted the environment of our life.General disposal route is to incinerate or landfill at present.Someone has invented and a kind ofly wasted ink powder is carried out cracking has handled the method change into fuel oil, see that China applies for a patent 01127963.X, but this processing cost is higher, and technology is complicated, and the economic worth of output fuel oil and former ink powder greatly differs from each other.The somebody has invented a kind of waste and old photocopy toner regenerating device (Chinese patent 94202405.2), and its principle of work only is that waste and old photocopy toner is carried out simple mechanical sorting and magnetic separation, and the ink powder after the sorting and the quality of former ink powder still have big gap.
Summary of the invention
The object of the present invention is to provide the renovation process of a kind of laser printer that goes out of use or used in copy machines powder toner, be human build pure and fresh, a natural green environment in, make residual powder in the imaging cassette that goes out of use become regeneration powder toner with the same excellent quality of former powder toner.
The object of the present invention is achieved like this: the renovation process of a kind of laser printer that goes out of use or used in copy machines powder toner, may further comprise the steps: at first prepare the wasted powder toner, this wasted powder toner is the toner powder that residues in the discarded imaging cassette; Adopt the method for low temperature drying-friction dry-cleaning-sorting that the wasted powder toner is handled then, obtain reusable powder toner raw material; With the powder toner raw material that obtains as the primary raw material of making former kind or other kind toners, count by weight percentage, content accounts for 30%～100% of total proportioning, produces regeneration dry type toner by the mixing disintegrating process of traditional mode of production dry type toner.
The present invention utilizes methods such as low temperature drying, friction dry-cleaning, selection by winnowing that the waste-powder toner is handled, not only greatly reduce environmental pollution, and, the powder toner that former kind after the regeneration or its electrification by friction characteristic of the powder toner of other kinds are still made as former factory, and can under various environmental baselines, keep stable, be used on laser printer or the duplicating machine, have good fluidity, do not have sticking hot-rolling phenomenon, characteristics such as photographic fixing is good, clear picture, no bottom ash, in volume copying or print procedure, keep the high characteristic of permanance but also have.
Embodiment
The powder toner that goes out of use that relates among the present invention is meant not to be transferred on the paper and to remain in the imaging cassette powder toner that can not re-use.Remain in the powder toner of imaging cassette waste powder hopper, it is the toner particle that is not transferred that scraper plate scrapes from photosensitive drums, wherein have part powder toner to cause in the discharge by physics or chemical contamination because of on the scene, its rerum natura show as granularity little, in light weight or charged a little less than; Owing in transfer process, also can mix the fine fibre of paper surface or the foreign matter that comes off from paper; And remain in the part powder toner in the developing chamber in the imaging cassette, and can be the particle that does not have magnetic purely, do not meet development conditions; Or the strong particle of magnetic, the ferromagnetism particle will accumulate in magnetic rolle rsleeve surface, form magnetic seal, even some powder toners that meet development conditions do not arrive bulging surface yet, and remain in the developer.As the powder toner that goes out of use of primary raw material, its basic composition accounts for more than 70% based on former powder toner in the present invention.
The powder toner that goes out of use, the mixed powder of many kinds powder toner of same often polarity, its particle diameter is 1 to 10 micron, particle surface may wrap up by contaminated thing, therefore adopt the method for friction dry-cleaning to clean to it: to adopt cold drying that the liquid water content in the wasted powder toner is reduced to below 5/1000ths before cleaning earlier, with the method for low speed commentaries on classics high-speed mixing the powder toner that goes out of use being carried out homogenization again mixes, make phase mutual friction between the particle, with pollutant small-particle and powder toner separate particles.The method that homogenization mixes comprises that the wasted powder toner mixes separately, and the wasted powder toner mixes with one or more lapping compounds.The present invention can add to the wasted powder toner count by weight percentage 0.1%～3% lapping compound, plays the effect of clean-out system, and its granularity is less than 3 microns or greater than 0.1 millimeter.As the lapping compound that uses among the present invention can be powder or balls such as cerium oxide, aluminium oxide, zirconia, silit, monox, adamas.When adopting the ball lapping compound, the ball lapping compound can repeatedly use repeatedly.
Then, the wasted powder toner that cleaned is carried out selection by winnowing.The powder toner separates with small contaminant particles and clean-out system in the wasted powder toner that use particle dry cleaner or airflow classification machine, mechanical type grader, impeller grader, inertia force classifier, cyclone separator etc. will clean, and its purpose is to make pollutant and the separate particles below 3 microns to go out.Employing is during greater than 0.1 millimeter pearl ball lapping compound, implement dry-cleaning after, with screen cloth the powder toner is separated with pearl ball lapping compound.
Wasted powder toner after the selection by winnowing has been essentially powder toner particle, can produce regeneration dry type toner by the technology of traditional mode of production dry type toner, to reach national sector standard.Because every batch of powder toner physical parameter that goes out of use can not have consistance, therefore enter and at first it will be taken the laboratory before next step is produced and analyze, measure physical parameters such as its fusibility, basic composition, charging property, with the corresponding physical parameter contrast of purpose standardized product, produce by the deviation value component design of physical parameter then.For example, less than normal through check wasted powder toner carried charge, can suitably regulate the charge control agent deal; Magnetic is less than normal, can suitably increase magnetic material ratio etc.According to assay, following three kinds of situations are arranged generally:
(1) if its composition compare with former powder toner, recipe ratio obviously departs from, its rerum natura shows as the charged optimum value that departs from, granularity is less, distribution broadens etc., printing image blackness is not enough, bottom ash is serious, do not reach request for utilization, need allocate adhering resin this moment into, or magnetic material, charge control agent, colorant, inner additive etc., or their potpourri, make and add that each component percentages content is (by weight percentage) in the product of back: one-component powder toner composition: resin 40%～80%, magnetic material 10%～58%, charge control agent 1%～5%, inner additive 0.5%～8%, colorant 0%～10%, external additive 0.1%～1.2%; Two component powder toners: resin 80%～90%, magnetic material 0.5%～5%, charge control agent 0.5%～5%, inner additive 0.5%～8%, colorant 5%～10%, external additive 0.1%～1%.Added each component by said ratio, after with high-speed mixer this potpourri fully being mixed, potpourri has been carried out melting mixing with the screw continuous mixer.Behind the mixing thing cooling curing, carry out coarse crushing with beater grinder or winnowing type comminutor etc., it is broken to carry out micro mist with jet pulverizer, mechanical type comminutor etc. again, carries out classification with airflow classification machine, mechanical type grader etc.Add external additive in the last particle after classification, make external additive account for general assembly (TW) proportioning 0.1%～1.2%, low speed changes high-speed mixing, increases particle flow, promptly finishes the present invention.
As the adhering resin that uses as the adjusting meltbility among the present invention, from whole can the selecting for use of using as powder toner adhering resin in the past.Specifically, can be listed below: polystyrene, polychlorostyrene, styrene such as tygon toluene are extremely for single polymers of body, styrene/P-chloro-styrene copolymer, styrene/propylene copolymer, styrene/ethylene base toluene multipolymer, styrene/ethylene base naphthalenedicarboxylate copolymer, the styrene/acrylic methyl terpolymer, styrene/acrylic ethyl ester multipolymer, styrene/acrylic butyl ester multipolymer, styrene/acrylic monooctyl ester multipolymer, the styrene/methacrylic acid methyl terpolymer, styrene/methacrylic acid ethyl ester multipolymer, styrene/methacrylic acid butyl ester multipolymer, styrene/α-chloromethyl propylene acid methyl terpolymer, styrene/acrylonitrile copolymer, styrene/ethylene ether multipolymer, styrene/ethylene methyl ketone multipolymer, styrene/butadiene copolymers, styrene/isoprene multipolymer, styrene/acrylonitrile/indene copolymer, styrene/maleic acid, styrene based copolymers such as styrene/maleate copolymer, polymethylmethacrylate, poly-n-butyl methacrylate, Polyvinylchloride, polyvinyl acetate, tygon, polypropylene, polyester, the polyvinyl butyral butyl ester, polyacrylic resin, rosin, modified rosin, terpene resin, phenolic resin, aliphatics or alicyclic resin, aromatic series through-stone oleoresin, chlorinated paraffin, paraffin etc.The above-mentioned thing that exemplifies can use separately, also can two or more mix use.
As the magnetic material powder that uses as adjusting magnetic among the present invention, can be listed below: the oxide of ferrite, iron excess type ferrite, tri-iron tetroxide, gamma-iron oxide etc., the metal that iron, cobalt, nickel are such or their alloy etc., and with the above-mentioned resulting powder body material in surface back of enumerating thing of processing such as resin, its granularity is generally less than 0.5 micron.
As the negative charge controlling agent that uses among the present invention, can be listed below: nigrosine based dye, quarternary ammonium salt, the polymkeric substance that contains amino, containing metal azo dyes, salicylic chain compound, oxybenzene compound etc.Positive charge control agent comprises: nigrosine dyestuff, kiton colors, quaternary ammonium salt, guanidine derivatives, imdazole derivatives, amines etc.
As the inner additive that uses among the present invention, can be listed below: synthetic wax classes such as low-molecular-weight tygon, polypropylene, candelila wax, Brazil wax, rice wax, vegetable wax, jojoba (jojoba) wet goods department of botany wax class, animals such as beeswax, lanocerin, spermaceti are the wax class, mineral such as montan wax, paraffin are the wax class, and greases such as hardened castor oil, the hard ester acid of base, fatty acid amide, phenol fatty acid ester are the wax class.The above-mentioned thing of enumerating can use separately, also can two or more mix use.
Colorant as powder toner among the present invention uses all is suitable for from pigment and the dyestuff that is using as powder toner colorant in the past.Specifically, can be listed below: carbon black, nigrosine, nonmagnetic ferrite, magnetite black, monoazo series pigments, disazo pigment, trisazo-series pigments etc.
As the external additive that uses among the present invention, for example have that hydrophobic silica, colloidal silica, titanium dioxide, aluminium oxide etc. are mobile to invest agent.Invest agent as flowing, the hydrophobization processing is carried out with organosilane coupling agent, silicone oil etc. in the surface, and hydrophobic deg is 20～40.
(2) according to the basic composition of analyzing the wasted powder toner after the selection by winnowing, its each set of dispense is than meeting the listed component percentages scope of said circumstances (), therefore need not add component such as adhering resin again carries out mixing, directly add external additive, make external additive account for general assembly (TW) proportioning 0.1%～1.2%, low speed changes high-speed mixing, increases particle flow, promptly finishes the present invention.
(3) the wasted powder toner after the selection by winnowing is up to state standards through check, can be directly applied for laser printer or duplicating machine.
Below, further specify the present invention by embodiment, but the present invention is not limited by embodiment.
Said among the embodiment " part " is weight basis.
Embodiment 1: after the powder toner low temperature drying of using for Hewlett-Packard (HP) low speed laser printer that will go out of use, get 100 parts with 1 part of high-speed mixing of lapping compound ceria 90 seconds, the powder toner that goes out of use is cleaned; With the airflow classification machine wasted powder toner of bathing is carried out selection by winnowing; After laboratory inspection, analyzing, will be by following ingredients:
100 parts of wasted powder toners after the selection by winnowing
2 parts in adhering resin styrene acrylic fat
1 part of magnetic material ferroferric oxide powder
1 part of charge control agent azo chromium complex
2 parts of inner additive polypropylenes
The potpourri of being formed carries out melting mixing with twin-screw extruded type continuous mixer to potpourri.Behind the mixing thing cooling curing, carry out coarse crushing with winnowing type comminutor etc., it is broken to carry out micro mist with jet pulverizer again, carries out classification with the airflow classification machine.Add 0.7 part of external additive hydrophobic silica, the powder toner after obtaining regenerating in the last particle after classification.This toner is applicable to the HP-4L/5L/6L of Hewlett-Packard type, 1000 serial laser printers.
Embodiment 2: after the powder toner low temperature drying that goes out of use, high-speed mixing 90 seconds is carried out bathing to the powder toner that goes out of use; With the airflow classification machine wasted powder toner of bathing is carried out selection by winnowing; After laboratory inspection, analyzing, directly the wasted powder toner after the selection by winnowing is added 0.8 part of external additive hydrophobic silica, the powder toner after obtaining regenerating for 100 parts.This toner is applicable to the GP31 of Canon type digital duplicating machine.
Claims (11)
1, the renovation process of a kind of laser printer that goes out of use or used in copy machines powder toner may further comprise the steps:
1. prepare the wasted powder toner, this wasted powder toner is the toner powder that residues in the discarded imaging cassette;
2. adopt the method for low temperature drying-friction dry-cleaning-sorting that the wasted powder toner is handled, obtain reusable powder toner raw material;
3. the powder toner raw material that 2. obtains with step is as the primary raw material of making former kind or other kind toners, count by weight percentage, content accounts for 30%～100% of total proportioning, produces regeneration dry type toner by the mixing disintegrating process of traditional mode of production dry type toner.
2, renovation process according to claim 1 is characterized in that: described wasted powder toner is the wasted powder toner with negativity frictional electricity ability, or has the wasted powder toner of positivity frictional electricity ability.
3, renovation process according to claim 1 is characterized in that: the wasted powder toner that described wasted powder toner is one-component or two components.
4, renovation process according to claim 1 is characterized in that: utilize cold drying that the liquid water content in the wasted powder toner is reduced to below 5/1000ths in the described step 2.
5, renovation process according to claim 1, it is characterized in that: the friction dry-cleaning method of described step 2 is to utilize particle dry cleaner or high-speed mixing to allow the mutual friction of wasted powder toner particle phase dry-clean, with being bonded at the pollutant and the wasted powder toner separate particles of wasted powder toner particle surface, make wasted powder toner particle be returned to unpolluted former polymorphic material.
6, renovation process according to claim 1 is characterized in that: in the friction dry-cleaning method process of described step 2, count by weight percentage, add 0.1%～3% lapping compound.
7, renovation process according to claim 6 is characterized in that: the granularity of described lapping compound is less than 3 microns or greater than 0.1 millimeter.
8, renovation process according to claim 6 is characterized in that: described lapping compound be Powdered or cerium oxide, aluminium oxide, zirconia, silit, monox or the adamas of ball shape in one or more mixing.
9, renovation process according to claim 1, it is characterized in that: the method for separating of described step 2 comprises selection by winnowing or screening, wherein wind selection method is to adopt impeller grader, inertia force classifier, cyclone separator etc. the powder toner particle of wash clean and being bonded at littler pollutant powder particle of wasted powder toner particle surface and lapping compound carried out selection by winnowing originally, thereby isolates the powder toner raw material of clean, consistent with former powder toner particle rerum natura reproducible utilization.
10, renovation process according to claim 1, it is characterized in that: in the described step 3, add an amount of adhering resin, magnetic material, colorant, charge control agent and inside and outside adjuvant in the powder toner raw material that obtains toward step 2, make in the one-component powder toner product after the interpolation each components based on weight percentage calculate content to be: resin 40%～80%, magnetic material 10%～58%, charge control agent 1%～5%, inner additive 0.5%～8%, colorant 0%～10%, external additive 0.1%～1.2%.
11, renovation process according to claim 1, it is characterized in that: in the described step 3, add an amount of adhering resin, magnetic material, colorant, charge control agent and inside and outside adjuvant in the powder toner raw material that obtains toward step 2, make in the two component powder toner products after the interpolation each components based on weight percentage calculate content to be: resin 80%～90%, magnetic material 0.5%～5%, charge control agent 0.5%～5%, inner additive 0.5%～8%, colorant 5%～10%, external additive 0.1%～1%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100266393A CN1318925C (en) | 2004-03-26 | 2004-03-26 | Regeneration method of refused powdered toner of laser printer or duplicater |
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|---|---|---|---|
| CNB2004100266393A CN1318925C (en) | 2004-03-26 | 2004-03-26 | Regeneration method of refused powdered toner of laser printer or duplicater |
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| Publication Number | Publication Date |
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| CN1564085A CN1564085A (en) | 2005-01-12 |
| CN1318925C true CN1318925C (en) | 2007-05-30 |
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| CNB2004100266393A Expired - Lifetime CN1318925C (en) | 2004-03-26 | 2004-03-26 | Regeneration method of refused powdered toner of laser printer or duplicater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100525164C (en) * | 2003-03-26 | 2009-08-05 | 日立通讯技术株式会社 | Light transmission apparatus with dispersion compensating function and dispersion compensating method |
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|---|---|---|---|---|
| CN101158843B (en) * | 2007-11-15 | 2012-02-29 | 珠海天威飞马打印耗材有限公司 | Developing agent regeneration method used for electronic photography image forming apparatus |
| CN101968618B (en) * | 2010-09-28 | 2012-05-09 | 珠海思美亚碳粉有限公司 | Method for regenerating carbon powder for electrophototgraphic imaging device |
| CN102103353A (en) * | 2011-01-27 | 2011-06-22 | 珠海益泛数码科技有限公司 | Method for recovering and regenerating abandoned carbon dust of laser printer and laser duplicator |
| CN103170492B (en) * | 2013-02-22 | 2015-09-16 | 珠海联合天润打印耗材有限公司 | A kind of colored carbon powder reclaiming process |
| CN104238332A (en) * | 2014-07-29 | 2014-12-24 | 珠海市科力莱科技有限公司 | HP-series colored carbon powder collecting and treating method |
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| CN1564085A (en) | 2005-01-12 |
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