CN114854244A - Environment-friendly offset printing ink and preparation method thereof - Google Patents
Environment-friendly offset printing ink and preparation method thereof Download PDFInfo
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- CN114854244A CN114854244A CN202210451613.1A CN202210451613A CN114854244A CN 114854244 A CN114854244 A CN 114854244A CN 202210451613 A CN202210451613 A CN 202210451613A CN 114854244 A CN114854244 A CN 114854244A
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- 238000007645 offset printing Methods 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 30
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 79
- 239000008158 vegetable oil Substances 0.000 claims abstract description 79
- 150000002148 esters Chemical class 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000002274 desiccant Substances 0.000 claims abstract description 22
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 16
- 239000004359 castor oil Substances 0.000 claims abstract description 15
- 235000019438 castor oil Nutrition 0.000 claims abstract description 15
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 15
- 239000000944 linseed oil Substances 0.000 claims abstract description 15
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 15
- 239000002383 tung oil Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 13
- 235000019198 oils Nutrition 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000084 colloidal system Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 18
- 239000003549 soybean oil Substances 0.000 claims description 17
- 235000012424 soybean oil Nutrition 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 claims description 7
- 235000020778 linoleic acid Nutrition 0.000 claims description 7
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- LSKJZEDMESDBLU-UHFFFAOYSA-L manganese(2+);6-methylheptanoate Chemical compound [Mn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O LSKJZEDMESDBLU-UHFFFAOYSA-L 0.000 claims description 5
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- PUSKHXMZPOMNTQ-UHFFFAOYSA-N ethyl 2,1,3-benzoselenadiazole-5-carboxylate Chemical group CCOC(=O)C1=CC=C2N=[Se]=NC2=C1 PUSKHXMZPOMNTQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 30
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 112
- 238000007639 printing Methods 0.000 description 29
- 230000007613 environmental effect Effects 0.000 description 17
- 239000011521 glass Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000006701 autoxidation reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- CUXYLFPMQMFGPL-UHFFFAOYSA-N (9Z,11E,13E)-9,11,13-Octadecatrienoic acid Natural products CCCCC=CC=CC=CCCCCCCCC(O)=O CUXYLFPMQMFGPL-UHFFFAOYSA-N 0.000 description 4
- CUXYLFPMQMFGPL-SUTYWZMXSA-N all-trans-octadeca-9,11,13-trienoic acid Chemical compound CCCC\C=C\C=C\C=C\CCCCCCCC(O)=O CUXYLFPMQMFGPL-SUTYWZMXSA-N 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 239000002480 mineral oil Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003349 gelling agent Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000005609 naphthenate group Chemical group 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/06—Printing inks based on fatty oils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
Abstract
The application relates to the technical field of ink manufacturing, and particularly discloses environment-friendly offset printing ink and a preparation method thereof, wherein the environment-friendly offset printing ink comprises the following raw materials in parts by weight: 10-25 parts of colloid oil binder, 10-20 parts of vegetable oil, 10-25 parts of pigment, 5-15 parts of vegetable oil ester, 8-15 parts of filler, 2-4 parts of film-forming aid, 1-3 parts of drying agent, 3-6 parts of friction-resistant aid and 2-4 parts of flatting agent; the vegetable oil comprises tung oil, linseed oil and dehydrated castor oil; the environment-friendly offset printing ink prepared by the method has the characteristic of short drying time.
Description
Technical Field
The application relates to the technical field of ink manufacturing, in particular to environment-friendly offset printing ink and a preparation method thereof.
Background
The ink is a stable and uniform dispersion system mainly composed of pigments, binders and various auxiliaries. The inks are of a wide variety, and are classified according to the characteristics of the printing plate, and mainly include offset lithographic inks, relief inks, intaglio inks, screen inks, specialty inks, and the like. Among them, lithographic offset printing ink is the most important ink variety, and accounts for about half of the total amount of ink.
In conventional offset lithographic inks, there is 30-40% mineral oil content. Although these mineral oils have a high boiling range, they do not participate in the ink oxidative filming process and eventually slowly evaporate into the air, forming VOC emissions. Therefore, the pollution-free renewable pure vegetable oil is adopted to completely replace the petroleum-based solvent in the traditional ink, and the harm to human bodies and the environmental pollution can be greatly reduced. In recent years, in order to cope with environmental problems, the printing industry has increasingly adopted environment-friendly soybean oil inks, which account for 80% of the total amount of offset inks in europe, the united states and japan, and which can reduce VOC emissions and contribute to environmental protection.
Aiming at the related technologies, the inventor considers that soybean oil in the existing environment-friendly soybean oil ink belongs to semi-dry vegetable oil, and the drying time is long, so that the conditions of adhesion and smearing are easy to occur after the ink is offset printed.
Disclosure of Invention
In order to shorten the drying time of the environment-friendly offset printing ink, the application provides the environment-friendly offset printing ink and a preparation method thereof.
In a first aspect, the present application provides an environmentally friendly offset ink, which adopts the following technical scheme:
an environment-friendly offset printing ink comprises the following raw materials in parts by weight: 10-25 parts of colloid oil binder, 10-20 parts of vegetable oil, 10-25 parts of pigment, 5-15 parts of vegetable oil ester, 8-15 parts of filler, 2-4 parts of film-forming aid, 1-3 parts of drying agent, 3-6 parts of friction-resistant aid and 2-4 parts of flatting agent; the vegetable oil comprises tung oil, linseed oil and dehydrated castor oil.
By adopting the technical scheme, the environment-friendly offset printing ink is prepared by blending and compounding the resin, the vegetable oil, the pigment, the vegetable oil ester, the gelling agent, the drying agent and the friction-resistant auxiliary agent. Wherein the added gelatinizer can adjust the viscosity of the ink; the drying agent can promote the drying speed of the environment-friendly offset printing ink and shorten the drying time of the ink; the friction-resistant auxiliary agent can improve the stability and the wear resistance of the ink and prolong the storage time of the ink; the vegetable oil is selected from tung oil, linseed oil and dehydrated castor oil, the three vegetable oils all belong to dry oil, and the mechanism of the dry vegetable oil is autoxidation reaction when the dry vegetable oil is dried in the air. In the initiation stage of eleostearic acid in the eleostearic oil, a single electron on a free radical of the eleostearic acid can form a conjugated system with conjugated double bonds, so that the reaction level in the initiation stage is greatly reduced, the autoxidation reaction is easy to occur, and the oxidation reaction speed is accelerated; the tung oil has the same autoxidation reaction as the linseed oil and the dehydrated castor oil, and also has the unique drying reaction autopolymerization reaction to form a six-membered or eight-membered ring network macromolecular structure, so that the drying process of the vegetable oil in the air is further promoted, and the drying time of the ink is shortened.
Preferably, the environment-friendly offset printing ink comprises the following raw materials in parts by weight: 15-20 parts of colloid oil connecting material, 14-18 parts of vegetable oil, 15-20 parts of pigment, 8-12 parts of vegetable oil ester, 10-12 parts of filler, 2.5-3.5 parts of film-forming aid, 1.5-2 parts of drying agent, 4-5 parts of friction-resistant aid and 2.5-3.5 parts of flatting agent.
By adopting the technical scheme, the application optimizes the consumption of each raw material of the environment-friendly offset printing ink, so that when the consumption of the raw materials of the offset printing ink is in the range, the prepared environment-friendly offset printing ink has short drying time and better ink stability.
Preferably, the vegetable oil comprises the following components in parts by weight: 15-20 parts of tung oil, 10-20 parts of linseed oil and 5-15 parts of dehydrated castor oil.
By adopting the technical scheme, the tung oil, the linseed oil and the dehydrated castor oil are proportioned according to a certain proportion, and the prepared vegetable oil replaces a petroleum-based solvent in the traditional printing ink, so that the drying speed of the printing ink can be improved, and the vegetable oil has the characteristics of low VOC content, environmental protection, biodegradability and the like.
Preferably, the vegetable oil ester comprises the following components in parts by weight: 10-20 parts of soybean oil fatty acid methyl ester, 5-15 parts of soybean oil fatty acid ethyl ester and 8-12 parts of linoleic acid.
By adopting the technical scheme, the vegetable oil ester is prepared by proportioning the soybean oil fatty acid methyl ester, the soybean oil fatty acid ethyl ester and the linoleic acid according to a certain proportion, wherein the soybean oil fatty acid methyl ester, the soybean oil fatty acid ethyl ester and the linoleic acid, the carbon chain lengths of the three esters, the size of the whole molecule and the viscosity are closer to mineral oil, and the vegetable oil ester has better permeability, can improve the fixation speed of the printing ink, and is favorable for the drying speed of the offset printing ink.
Preferably, the drying agent is cobalt isooctanoate or manganese isooctanoate.
By adopting the technical scheme, the drying agent in the application adopts cobalt isooctanoate or manganese isooctanoate, and compared with the traditional naphthenate drying agent, the drying agent has the advantages of good solubility, small using amount, high purity, light color, light smell, small viscosity and the like.
Preferably, the friction-resistant aid is PE wax.
By adopting the technical scheme, the PE cerate has good light resistance and chemical properties, can be used as a carrier of pigment, can improve the wear resistance of paint and ink, improves the dispersibility of the pigment and filler, has good anti-sedimentation effect, can be used as a flatting agent of the paint and the ink, and ensures that products have good luster and stereoscopic impression.
Preferably, the filler is one or more of nano calcium carbonate, superfine talcum powder and fumed silica; the leveling agent is polyether siloxane copolymer.
By adopting the technical scheme, the filler improves the wear resistance of the offset printing ink, so that the stability of the offset printing ink is better; the polyether siloxane copolymer can effectively reduce the surface tension of the offset printing ink, so that the offset printing ink forms a flat, smooth and uniform surface in the process of drying and film forming.
In a second aspect, the present application provides a method for preparing an environmentally friendly offset printing ink, comprising the steps of:
1) mixing the colloidal oil binder, 1/2 vegetable oil and 1/2 vegetable oil ester, heating to 200 ℃ and 220 ℃, uniformly stirring, and keeping the temperature for 30-40min to obtain the binder;
2) adding pigment, filler and flatting agent into the connecting material, shearing and grinding until the fineness of the connecting material reaches below 10 mu m to obtain a base material;
3) and adding the rest of vegetable oil, vegetable oil ester, drying agent, film-forming aid and friction-resistant aid into the base material, and uniformly mixing and stirring to obtain the environment-friendly offset printing ink.
By adopting the technical scheme, the resin, the vegetable oil, the pigment, the vegetable oil ester, the gelling agent, the drying agent and the friction-resistant auxiliary agent are blended and compounded in a certain order, so that the finally prepared environment-friendly offset printing ink is high in fixation speed and short in drying time; when the time and the temperature in the steps are taken within the value range, the prepared environment-friendly offset printing ink has no obvious influence on the fixation rate and the drying time.
In summary, the present application has the following beneficial effects:
1. the environment-friendly offset printing ink is prepared by blending and compounding resin, vegetable oil, pigment, vegetable oil ester, a gelling agent, a drying agent and a friction-resistant auxiliary agent. Wherein the added gelatinizer can adjust the viscosity of the ink; the drying agent can promote the drying speed of the environment-friendly offset printing ink and shorten the drying time of the ink; the friction-resistant auxiliary agent can improve the stability and the wear resistance of the ink and prolong the storage time of the ink; the vegetable oil is selected from tung oil, linseed oil and dehydrated castor oil, the three vegetable oils all belong to dry oil, and the mechanism of the dry vegetable oil is autoxidation reaction when the dry vegetable oil is dried in the air. In the initiation stage of eleostearic acid in the eleostearic oil, a single electron on a free radical of the eleostearic acid can form a conjugated system with conjugated double bonds, so that the reaction level in the initiation stage is greatly reduced, the autoxidation reaction is easy to occur, and the oxidation reaction speed is accelerated; the tung oil has the same autoxidation reaction as the linseed oil and the dehydrated castor oil, and also has the unique drying reaction autopolymerization reaction to form a six-membered or eight-membered ring network macromolecular structure, so that the drying process of the vegetable oil in the air is further promoted, and the drying time of the ink is shortened.
2. The vegetable oil ester is prepared by proportioning the soybean oil fatty acid methyl ester, the soybean oil fatty acid ethyl ester and the linoleic acid according to a certain proportion, wherein the soybean oil fatty acid methyl ester, the soybean oil fatty acid ethyl ester and the linoleic acid are better in permeability, the carbon chain lengths of the three esters and the size of the whole molecule, and the viscosity is closer to mineral oil, so that the fixation speed of the printing ink can be improved, and the drying speed of the offset printing ink is facilitated.
3. Through tests, the fluidity of the prepared environment-friendly offset printing ink reaches 35mm, the drying time and the fixation speed of a glass plate are shortened to 22h and 5min respectively, the glossiness reaches 88, and the wear resistance reaches 4.8.
Detailed Description
The present application will be described in further detail with reference to examples.
Raw materials
Resin: adopting TI300, wherein a manufacturer is Shanghai Kayin chemical Co., Ltd; tung oil: the manufacturer is Shandong Xuxiang chemical industry Co., Ltd; linseed oil: the manufacturer is Shandong Chuangying chemical company; dehydrated castor oil: the manufacturer is Shandong Xuxiang chemical industry Co., Ltd;
methyl soyate: the manufacturer is Pander (Shanghai) International trade company Limited; fatty acid ethyl ester of soybean oil: the manufacturer is Pander (Shanghai) International trade company Limited; linoleic acid: the manufacturer is Jiangsu Ofu biotechnology limited;
cobalt isooctoate: the manufacturer is Guangzhou, a New Material Co Ltd; manganese isooctoate: the manufacturer comprises the following steps: the manufacturer is Jiangsu plectrum biotechnology limited;
PE cerate: shenzhen Longdi chemical Co., Ltd; carbon black pigment: the manufacturer is Shanghai international trade company Limited.
Preparation example
Preparation examples 1 to 3
The vegetable oils of preparation examples 1 to 3, whose raw materials and amounts of the raw materials are shown in table 1, were prepared by the following steps:
weighing the raw materials according to the dosage in the table 1, and then uniformly stirring the raw materials to obtain the vegetable oil. TABLE 1 preparation examples 1-3 of vegetable oils and amounts (kg) of the respective materials
| Preparation example 1 | Preparation example 2 | Preparation example 3 | |
| Tung oil | 10 | 12 | 15 |
| Linseed oil | 30 | 25 | 15 |
| Dehydrated castor oil | 5 | 8 | 10 |
Preparation examples 4 to 6
The vegetable oil esters of preparation examples 4-6, whose raw materials and amounts of raw materials are shown in Table 2, were prepared by the following steps:
weighing the raw materials according to the dosage in the table 2, and then uniformly stirring the raw materials to obtain the vegetable oil ester.
TABLE 2 preparation examples 4-6 of vegetable oil esters and amounts (kg) of the respective raw materials
| Preparation example 4 | Preparation example 5 | Preparation example 6 | |
| Methyl soyate | 10 | 15 | 20 |
| Fatty acid ethyl ester of soybean oil | 15 | 10 | 5 |
| Linoleic acid | 8 | 10 | 12 |
Examples
Examples 1 to 4
The environmental protection offset printing inks of the embodiments 1 to 4 have the following preparation steps, wherein the raw materials and the use amounts of the raw materials are shown in the table 3:
1) mixing the colloidal oil binder, 1/2 vegetable oil and 1/2 vegetable oil ester, heating to 220 ℃, uniformly stirring, and keeping the temperature for 40min to obtain the binder;
2) adding pigment, filler and leveling agent into the connecting material, then moving the material to a three-roller machine for grinding for 3-4 times until the measured fineness reaches below 10 mu m, and otherwise, continuing grinding until the fineness reaches the requirement to obtain the base material;
3) and adding the rest of vegetable oil, vegetable oil ester, drying agent, film-forming aid and friction-resistant aid into the base material, and uniformly mixing and stirring to obtain the environment-friendly offset printing ink.
Wherein, the vegetable oil is from preparation example 1, the vegetable oil ester is from preparation example 4, the drying agent is cobalt isooctanoate, the filler is nano calcium carbonate, and the pigment is carbon black pigment.
TABLE 3 raw materials and amounts (kg) of the raw materials of examples 1-4
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Colloidal oil binder | 10 | 15 | 20 | 25 |
| Vegetable oil | 10 | 10 | 10 | 10 |
| Pigment (I) | 10 | 15 | 20 | 25 |
| Vegetable oil esters | 15 | 12 | 8 | 5 |
| Filler material | 8 | 10 | 12 | 15 |
| Film forming aid | 2 | 2.5 | 3.5 | 4 |
| Drying agent | 3 | 2 | 1.5 | 1 |
| Friction-resistant auxiliary | 3 | 4 | 5 | 6 |
| Dispersion leveling agent | 4 | 3.5 | 2.5 | 2 |
Example 5
An environmental protection offset printing ink is different from the printing ink in the embodiment 3 in that the vegetable oil is from the preparation example 2, and the rest steps are the same as the printing ink in the embodiment 3.
Example 6
An environmental protection offset printing ink is different from the printing ink in example 3 in that the vegetable oil is from the preparation example 3, and the rest steps are the same as the printing ink in example 3.
Example 7
An environmental protection offset printing ink is different from the environmental protection offset printing ink in the embodiment 5 in that the addition amount of the vegetable oil is 14kg, and the other steps are the same as the embodiment 5.
Example 8
An environmental protection offset printing ink is different from the printing ink of the embodiment 5 in that the addition amount of the vegetable oil is 18kg, and the other steps are the same as the printing ink of the embodiment 5.
Example 9
An environmental protection offset printing ink is different from the printing ink of the embodiment 5 in that the addition amount of the vegetable oil is 20kg, and the other steps are the same as the printing ink of the embodiment 5.
Example 10
An environmental protection offset printing ink is different from the printing ink of the embodiment 9 in that the vegetable oil ester is from the preparation example 5, and the rest steps are the same as the printing ink of the embodiment 9.
Example 11
An environmental protection offset printing ink, which is different from the printing ink of the embodiment 9 in that the vegetable oil ester is from the preparation example 6, and the rest steps are the same as the printing ink of the embodiment 9.
Example 12
An environmental protection offset printing ink is different from the printing ink of the embodiment 10 in that the drying agent adopts the same amount of manganese isooctanoate, and the rest steps are the same as the printing ink of the embodiment 10.
Example 13
An environmental protection offset printing ink is different from the printing ink of the embodiment 11 in that the filling material adopts the superfine talcum powder, and the other steps are the same as the printing ink of the embodiment 11.
Example 14
An environmental protection offset printing ink is different from the printing ink of the embodiment 11 in that the filler adopts fumed silica, and the rest steps are the same as the printing ink of the embodiment 11.
Comparative example
Comparative example 1
An environment-friendly offset printing ink is different from the printing ink in the embodiment 1 in that the addition amount of tung oil in vegetable oil is 0, and the rest steps are the same as the steps in the embodiment 1.
Comparative example 2
An environmental protection offset printing ink is different from the printing ink in the embodiment 1 in that the addition amount of the linseed oil in the vegetable oil is 0, and the other steps are the same as the steps in the embodiment 1.
Comparative example 3
An environmental protection offset printing ink is different from the printing ink of the embodiment 1 in that the addition amount of dehydrated castor oil in vegetable oil is 0, and the other steps are the same as the printing ink of the embodiment 1.
Performance test
Detection method/test method
Environment-friendly flexographic inks were prepared according to the preparation methods of the flexographic inks prepared in examples 1 to 14 and comparative examples 1 to 3 and then tested according to the following test methods, and the test results are shown in Table 4.
Viscosity value: the ink viscosity was measured at room temperature 25 ℃ and humidity 60-70% at 400rpm, 32 ℃ and 60s using a viscometer.
Gloss: the ink was measured using a gloss meter.
Drying time of the glass plate: the filming time of the ink on the glass plate was observed and recorded under the conditions of a temperature of 25 ℃ and a humidity of 60 to 70%.
Fluidity: the measurement was carried out by using a fluidity measuring instrument.
Fixation speed: after the color is developed by the printing adaptation instrument under the conditions of the temperature of 25 ℃ and the humidity of 60-70%, the fixation speed is measured by a fixation speed measuring machine.
And (3) wear resistance measurement: the arc abrasion-resistant wiping tester is used for measuring, the score is from 1 to 5, and the higher the score is, the better the abrasion-resistant performance is.
TABLE 4 test results of examples 1 to 14 and comparative examples 1 to 3
As can be seen from the detection data in Table 3, the environment-friendly offset printing ink prepared by the method has the advantages of short drying time, high fixation speed, and good glossiness and wear resistance.
According to the detection data of the examples 1 to 4, the raw materials of the example 3 are better in proportion, and the environment-friendly offset printing ink prepared from the raw materials of the example 3 is better in fluidity, shorter in glass plate drying time and fixation speed and better in glossiness.
According to the detection data of the embodiment 3 and the embodiments 5-6, the vegetable oil of the preparation example 2 has a better proportion, and the environment-friendly offset printing ink prepared from the vegetable oil of the preparation example 2 has moderate viscosity, better fluidity, shorter glass plate drying time and fixation speed, and higher glossiness and wear resistance.
Combining the test data of example 5 and examples 7-9, it can be seen that as the amount of vegetable oil added increases, the fluidity increases, the glass drying time and the fixing speed both decrease, and the gloss increases. When the addition amount of the vegetable oil ester is 20kg, the fluidity of the prepared environment-friendly offset printing ink is 34mm, the drying time and the fixation speed of a glass plate are shortened to 30h and 7min respectively, the glossiness reaches 86, and the wear resistance reaches 4.8.
According to the combination of the detection data of the example 9 and the detection data of the examples 10 to 11, the vegetable oil ester of the preparation example 5 is better, the fluidity of the environment-friendly offset printing ink prepared from the vegetable oil ester of the preparation example 5 is 35mm, the drying time and the fixation speed of a glass plate are shortened to 25 hours and 5 minutes respectively, the glossiness is 88, and the wear resistance is 4.8.
By combining the detection data of the embodiment 11 and the embodiment 12, it can be seen that the drying time of the glass plate of the environment-friendly offset printing ink prepared by using manganese isooctanoate as the drying agent is shorter, and the fixing speed is higher, which can reach 22h and 5min respectively. In combination with the test data of examples 13-14, it can be seen that when nano calcium carbonate is used as the filler, the influence on the drying time and the fixing speed is not great, but the glossiness of the prepared environment-friendly offset printing ink can be improved.
According to the detection data of the comparative examples 1-3, when the addition amount of one of the tung oil, the linseed oil and the dehydrated castor oil in the vegetable oil is 0, the performance of the prepared environment-friendly offset printing ink is not as good as that of the environment-friendly offset printing ink in all aspects when the three are added simultaneously, and therefore, the tung oil, the linseed oil and the dehydrated castor oil have a certain synergistic effect.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. An environment-friendly offset printing ink is characterized in that: the composite material comprises the following raw materials in parts by weight: 10-25 parts of colloid oil binder, 10-20 parts of vegetable oil, 10-25 parts of pigment, 5-15 parts of vegetable oil ester, 8-15 parts of filler, 2-4 parts of film-forming aid, 1-3 parts of drying agent, 3-6 parts of friction-resistant aid and 2-4 parts of flatting agent; the vegetable oil comprises tung oil, linseed oil and dehydrated castor oil.
2. The environmentally friendly offset ink according to claim 1, wherein: the environment-friendly offset printing ink comprises the following raw materials in parts by weight: 15-20 parts of colloid oil connecting material, 14-18 parts of vegetable oil, 15-20 parts of pigment, 8-12 parts of vegetable oil ester, 10-12 parts of filler, 2.5-3.5 parts of film-forming aid, 1.5-2 parts of drying agent, 4-5 parts of friction-resistant aid and 2.5-3.5 parts of flatting agent.
3. The environmentally friendly offset ink according to claim 1, wherein: the vegetable oil comprises the following components in parts by weight: 10-15 parts of tung oil, 15-30 parts of linseed oil and 5-10 parts of dehydrated castor oil.
4. The environmentally friendly offset ink according to claim 1, wherein: the vegetable oil ester comprises the following components in parts by weight: 10-20 parts of soybean oil fatty acid methyl ester, 5-15 parts of soybean oil fatty acid ethyl ester and 8-12 parts of linoleic acid.
5. The environmentally friendly offset ink according to claim 1, wherein: the drying agent is cobalt isooctanoate or manganese isooctanoate.
6. The environmentally friendly offset ink according to claim 1, wherein: the friction-resistant auxiliary agent is PE cerate.
7. The environmentally friendly offset ink according to claim 1, wherein: the filler is one or more of nano calcium carbonate, superfine talcum powder and fumed silica; the leveling agent is polyether siloxane copolymer.
8. A method for preparing the environment-friendly offset printing ink according to any one of claims 1 to 7, which is characterized by comprising the following steps: which comprises the following steps:
1) mixing the colloidal oil binder, 1/2 vegetable oil and 1/2 vegetable oil ester, heating to 200 ℃ and 220 ℃, uniformly stirring, and keeping the temperature for 30-40min to obtain the binder;
2) adding pigment, filler and flatting agent into the connecting material, shearing and grinding until the fineness of the connecting material reaches below 10 mu m to obtain a base material;
3) and adding the rest of vegetable oil, vegetable oil ester, drying agent, film-forming aid and friction-resistant aid into the base material, and uniformly mixing and stirring to obtain the environment-friendly offset printing ink.
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