CN115505296A - Preparation method of low-odor cold-set offset plate rotary black ink - Google Patents
Preparation method of low-odor cold-set offset plate rotary black ink Download PDFInfo
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- CN115505296A CN115505296A CN202110695189.0A CN202110695189A CN115505296A CN 115505296 A CN115505296 A CN 115505296A CN 202110695189 A CN202110695189 A CN 202110695189A CN 115505296 A CN115505296 A CN 115505296A
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- ink
- carbon black
- varnish
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- 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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
- C09D11/105—Alkyd resins
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- 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
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- 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
Abstract
The invention discloses a preparation method of low-odor cold-set offset plate rotary black ink, which comprises the following steps of: step 1: wetting carbon black, adding water with a certain temperature into the carbon black with the formula amount to wet the carbon black, and then stirring for a certain time to obtain the wet carbon black. And 2, step: and (3) preparing the varnish, namely putting the resin and the oil substance with the formula ratio into a stirring kettle and uniformly stirring to obtain the varnish. And 3, step 3: and (2) replacement, putting the wet carbon black prepared in the step (1) into the varnish prepared in the step (2), adding calcium carbonate and kaolin in the formula amount, stirring uniformly, replacing the varnish with water in the wet carbon black, and adding no petroleum resin in the preparation process of the ink, so that the sharp odor of the prepared ink is small, quantifying the proportion of the fast-curing binder, thereby ensuring the fluidity of the ink, facilitating the printing of the ink on the paper, simultaneously not using a VOC material, and ensuring better environmental protection performance under the condition of unchanged ink performance.
Description
Technical Field
The invention relates to a preparation method of ink, in particular to a preparation method of low-odor cold-set offset plate rotary black ink.
Background
Ink is a main material in the printing industry, and the components and properties of the ink directly influence the printing effect. The cold-set offset plate rotary ink is mainly used for printing paper with good absorptivity, such as newsprint paper and offset plate paper, and mainly adopts a penetration drying principle, namely the ink is printed on the paper, a solvent in the ink is quickly absorbed by capillary pores of the paper, and resin is separated out and is fixed and dried on the paper.
Although the prior cold-set offset rotary black on the market does not use the carcinogen asphalt, the cold-set offset rotary black still uses petroleum resin and high-viscosity mineral oil. Because of low price and good water resistance, the petroleum resin is used by workers in the industry, but has a large odor and is deeply subjected to the defects of printing industry. Therefore, it is one of the problems to be solved by the skilled person in the art to provide a method for preparing a petroleum resin-free cold-set offset printing black ink, which can effectively reduce the odor of printed matters and has good performance.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of low-odor cold-set type offset rotary black ink.
In order to achieve the purpose, the invention adopts the following technical scheme:
the preparation method of the low-odor cold-set offset plate rotary black ink comprises the following steps:
step 1: wetting carbon black, namely adding water with a certain temperature into the carbon black with the formula amount to wet the carbon black, and then stirring for a certain time to prepare wet carbon black;
step 2: preparing varnish, namely putting the resin and the oil substances with the formula ratio into a stirring kettle and uniformly stirring to prepare the varnish;
and step 3: replacement, namely putting the wet carbon black prepared in the step 1 into the varnish prepared in the step 2, adding the calcium carbonate and the kaolin according to the formula amount, uniformly stirring, and replacing the varnish and the water in the wet carbon black to prepare a replaced mixture;
and 4, step 4: mixing the fast-curing binder, the colorant, the auxiliary agent and the mixture obtained in the step 3 together and stirring;
and 5: vacuum dehydration, namely standing the stirred material obtained in the step (4) and dehydrating the stirred material;
and 6: and (5) adjusting according to conventional indexes until the product is qualified, and packaging.
Preferably, the resin in the step 2 is a highly water-resistant alkyd resin, and the oil substance in the step 2 is vegetable oil fatty acid.
Preferably, the mixture left standing in the step 4 is subjected to oil-water separation, then the upper water layer of the mixture is poured out, and the residual water is pumped out at a certain temperature and a certain pressure to realize vacuum dehydration.
Preferably, the proportion of the fast-setting binder in the ink is from 50 to 55%.
Preferably, the proportion of carbon black in the ink is 19 to 23%.
Preferably, the proportion of the colorant in the ink is 1-3%, the proportion of the non-aromatic oil ink in the ink is 5-10%, the proportion of the highly water-resistant alkyd resin in the ink is 3-8%, the proportion of the auxiliary agent in the ink is 0-5%, and the proportion of the vegetable oil fatty acid in the ink is 3-8%.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, petroleum resin is not added in the preparation process of the ink, so that the prepared ink has less pungent smell, and the proportion of the quick-setting binder is quantified, so that the fluidity of the ink can be ensured, the ink can be conveniently printed on the paper, and meanwhile, a VOC material is not used, so that the environment-friendly performance is better under the condition of unchanged ink performance.
Drawings
FIG. 1 is a schematic flow chart of a preparation method of low-odor cold-set offset plate rotary black ink provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the preparation method of the low-odor cold-set offset plate rotary black ink comprises the following steps:
step 1: wetting carbon black, namely adding water with a certain temperature into the carbon black with the formula amount to wet the carbon black, and then stirring for a certain time to prepare wet carbon black;
step 2: preparing varnish, namely putting the resin and the oil substance with the formula ratio into a stirring kettle and uniformly stirring to prepare the varnish, wherein the resin in the step 2 is highly water-resistant alkyd resin, and the oil substance in the step 2 is vegetable oil fatty acid;
and step 3: replacement, namely putting the wet carbon black prepared in the step 1 into the varnish prepared in the step 2, adding the calcium carbonate and the kaolin according to the formula amount, uniformly stirring, and replacing the varnish and the water in the wet carbon black to prepare a replaced mixture;
and 4, step 4: melting the fast-curing binder, the colorant, the auxiliary agent and the mixture obtained in the step 3 together, stirring, performing oil-water separation on the mixture which is kept standing in the step 4, pouring out the upper water layer of the mixture, and pumping out the residual water at a certain temperature and under a certain pressure to realize vacuum dehydration;
and 5: vacuum dehydration, namely standing the stirred material obtained in the step (4) and dehydrating the stirred material;
step 6: and (5) adjusting according to conventional indexes until the product is qualified, and packaging.
The fast-curing binder accounts for 50-55% of the ink, the carbon black accounts for 19-23% of the ink, the colorant accounts for 1-3% of the ink, the aromatic-free ink oil accounts for 5-10% of the ink, the highly water-resistant alkyd resin accounts for 3-8% of the ink, the assistant accounts for 0-5% of the ink, and the vegetable oil fatty acid accounts for 3-8% of the ink.
Example 1, wet carbon black was prepared by adding 19-23% carbon black, based on the ink, to water at a temperature to wet the carbon black and then stirring for a period of time.
And then putting the highly water-resistant alkyd resin accounting for 3-8% of the ink and the vegetable oil fatty acid accounting for 3-8% of the ink into a stirring kettle, and uniformly stirring to obtain the varnish.
And putting the prepared wet carbon black into varnish, adding the calcium carbonate and kaolin according to the formula amount, and then uniformly stirring to replace the varnish with the water in the wet carbon black to prepare a replaced mixture.
Mixing fast-setting binder 50-55 wt%, colorant 1-3 wt%, and adjuvant 0-5 wt% with the mixture, and stirring.
And standing the stirred substance until oil-water separation is carried out, then pouring out the water on the upper layer, and pumping out the residual water at a certain temperature and under a certain pressure.
And finally, according to the conventional indexes, adjusting until the standard is qualified, and packaging.
The black ink of offset plate rotation that produces through above-mentioned embodiment is pungent smell less, and does not use the VOC material, and environmental protection performance is better under the unchangeable condition of printing ink performance, and is quantitative to the proportion of fast solid binder simultaneously to can guarantee the mobility of printing ink, thereby make things convenient for printing ink to print to the paper top.
Example 2, carbon black, which accounts for 20% -35% of the ink ratio, is added to water at a certain temperature to wet the carbon black, and then the mixture is stirred for a certain time to obtain wet carbon black.
And then putting rosin modified phenolic resin accounting for 5-25% of the ink, petroleum resin accounting for 1-15%, alkyd resin accounting for 1-10%, vegetable oil accounting for 15-45% and non-aromatic oil ink oil accounting for 5-25% of the ink into a stirring kettle and uniformly stirring to obtain the varnish.
And putting the prepared wet carbon black into varnish, adding calcium carbonate accounting for 1-20% of the ink, kaolin accounting for 1-20% of the ink and an anti-drying agent accounting for 1-3% of the ink, uniformly stirring, and replacing the varnish with water in the wet carbon black to prepare a replaced mixture.
And standing the stirred substance until oil-water separation is carried out, then pouring out the water on the upper layer, and pumping out the residual water at a certain temperature and under a certain pressure.
Finally, according to the conventional indexes, adjusting and packaging to be qualified.
The offset rotary black ink produced by the embodiment has higher blackness of printed images due to higher ink proportion, but the produced ink has larger pungent smell and is difficult to degrade and not environment-friendly due to the addition of a large amount of rosin modified phenolic resin, petroleum resin and alkyd resin.
Example 3, carbon black, which accounts for 20% -30% of the ink, is added to water at a certain temperature to wet the carbon black, and then the mixture is stirred for a certain time to obtain wet carbon black.
And putting the rosin modified phenolic resin accounting for 7-20% of the ink, the petroleum resin accounting for 1-10%, the alkyd resin accounting for 1-5%, the vegetable oil accounting for 15-40% and the non-aromatic oil ink oil accounting for 5-20% of the ink into a stirring kettle, and uniformly stirring to obtain the varnish.
And putting the prepared wet carbon black into varnish, adding calcium carbonate accounting for 1-20% of the ink, kaolin accounting for 1-20% of the ink and an anti-drying agent accounting for 1-3% of the ink, uniformly stirring, and replacing the varnish with water in the wet carbon black to prepare a replaced mixture.
And standing the stirred substance until oil-water separation is carried out, then pouring out the water on the upper layer, and pumping out the residual water at a certain temperature and under a certain pressure.
Finally, according to the conventional indexes, adjusting and packaging to be qualified.
The offset rotary black ink produced by the above examples has lower pungent taste compared with example 3, but the printing effect of the offset rotary black ink is lower, and the cost is increased.
Example 4 wet carbon black was prepared by adding 20% carbon black, based on the ink, to water at a temperature to wet the carbon black and then stirring for a period of time.
And then putting the rosin modified phenolic resin accounting for 10% of the ink, the petroleum resin accounting for 20%, the alkyd resin accounting for 2%, the vegetable oil accounting for 20% and the non-aromatic oil ink oil accounting for 8% of the ink into a stirring kettle, and uniformly stirring to obtain the varnish.
And putting the prepared wet carbon black into varnish, adding calcium carbonate accounting for 11% of the ink proportion, kaolin accounting for 9% of the ink proportion and an anti-drying agent accounting for 5% of the ink proportion, uniformly stirring, and replacing the varnish with water in the wet carbon black to prepare a replaced mixture.
And standing the stirred substance until oil-water separation is carried out, then pouring out the water on the upper layer, and pumping out the residual water at a certain temperature and under a certain pressure.
And finally, according to the conventional indexes, adjusting until the standard is qualified, and packaging.
The black ink for the offset rotary printing produced by the embodiment continuously reduces the ratio of carbon black, so that the blackness of the pattern at the printing position is lower, and simultaneously improves the ratio of petroleum resin, so that the production cost of the black ink for the offset rotary printing is reduced, but the black ink for the offset rotary printing has serious irritant odor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The preparation method of the low-odor cold-set type offset plate rotary black ink is characterized by comprising the following steps of:
step 1: wetting carbon black, namely adding water with a certain temperature into the carbon black with the formula amount to wet the carbon black, and then stirring for a certain time to prepare wet carbon black;
step 2: preparing varnish, namely putting the resin and the oil substances with the formula ratio into a stirring kettle and uniformly stirring to prepare the varnish;
and step 3: replacement, namely putting the wet carbon black prepared in the step 1 into the varnish prepared in the step 2, adding the calcium carbonate and the kaolin according to the formula amount, uniformly stirring, and replacing the varnish and the water in the wet carbon black to prepare a replaced mixture;
and 4, step 4: mixing the fast-curing binder, the colorant, the auxiliary agent and the mixture in the step 3, and stirring;
and 5: vacuum dehydration, namely standing the stirred material obtained in the step (4) and dehydrating the stirred material;
step 6: and (5) adjusting according to conventional indexes until the product is qualified, and packaging.
2. The method for preparing the low-odor cold-set offset rotary black ink as claimed in claim 1, wherein the resin in the step 2 is a highly water-resistant alkyd resin, and the oil substance in the step 2 is vegetable oil fatty acid.
3. The method for preparing a low-odor cold set type offset plate rotary black ink as claimed in claim 1, wherein the mixture left standing in the step 4 is subjected to oil-water separation, then the upper water layer of the mixture is poured out, and the residual water is pumped out at a certain temperature and a certain pressure to realize vacuum dehydration.
4. The method of claim 1, wherein the fast setting binder is present in the ink in a proportion of 50 to 55%.
5. The method of claim 1, wherein the carbon black is present in the ink in a proportion of 19 to 23%.
6. The method for preparing a low-odor cold-set type offset rotary black ink as claimed in claim 1, wherein the ratio of the colorant in the ink is 1-3%, the ratio of the aromatic-free oil ink in the ink is 5-10%, the ratio of the highly water-resistant alkyd resin in the ink is 3-8%, the ratio of the auxiliary agent in the ink is 0-5%, and the ratio of the vegetable oil fatty acid in the ink is 3-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695189.0A CN115505296A (en) | 2021-06-23 | 2021-06-23 | Preparation method of low-odor cold-set offset plate rotary black ink |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695189.0A CN115505296A (en) | 2021-06-23 | 2021-06-23 | Preparation method of low-odor cold-set offset plate rotary black ink |
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| CN115505296A true CN115505296A (en) | 2022-12-23 |
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| CN202110695189.0A Pending CN115505296A (en) | 2021-06-23 | 2021-06-23 | Preparation method of low-odor cold-set offset plate rotary black ink |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142288A (en) * | 2005-03-22 | 2008-03-12 | 阪田油墨株式会社 | Process for producing ink composition for offset printing, and ink composition for offset printing produced by said production process |
| JP2012241020A (en) * | 2011-05-13 | 2012-12-10 | Sakata Corp | Method for producing ink composition for offset printing and ink composition for offset printing |
| JP2013006982A (en) * | 2011-06-24 | 2013-01-10 | Sakata Corp | Method for producing ink composition for offset printing |
| CN103045010A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method of black basic ink for manufacturing planographic printing ink |
| CN105440781A (en) * | 2015-12-31 | 2016-03-30 | 茂名阪田油墨有限公司 | Production method for violet offset ink |
| CN105504975A (en) * | 2015-12-31 | 2016-04-20 | 茂名阪田油墨有限公司 | Environment-friendly cold-set black ink and production process thereof |
| CN105504969A (en) * | 2015-12-30 | 2016-04-20 | 茂名阪田油墨有限公司 | Offset printing ink and preparation method thereof |
| CN106147378A (en) * | 2015-04-09 | 2016-11-23 | 泉州市合创涂料科技有限公司 | A kind of containing kaolinic planographic ink of high concentration and preparation method thereof |
-
2021
- 2021-06-23 CN CN202110695189.0A patent/CN115505296A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142288A (en) * | 2005-03-22 | 2008-03-12 | 阪田油墨株式会社 | Process for producing ink composition for offset printing, and ink composition for offset printing produced by said production process |
| JP2012241020A (en) * | 2011-05-13 | 2012-12-10 | Sakata Corp | Method for producing ink composition for offset printing and ink composition for offset printing |
| JP2013006982A (en) * | 2011-06-24 | 2013-01-10 | Sakata Corp | Method for producing ink composition for offset printing |
| CN103045010A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method of black basic ink for manufacturing planographic printing ink |
| CN106147378A (en) * | 2015-04-09 | 2016-11-23 | 泉州市合创涂料科技有限公司 | A kind of containing kaolinic planographic ink of high concentration and preparation method thereof |
| CN105504969A (en) * | 2015-12-30 | 2016-04-20 | 茂名阪田油墨有限公司 | Offset printing ink and preparation method thereof |
| CN105440781A (en) * | 2015-12-31 | 2016-03-30 | 茂名阪田油墨有限公司 | Production method for violet offset ink |
| CN105504975A (en) * | 2015-12-31 | 2016-04-20 | 茂名阪田油墨有限公司 | Environment-friendly cold-set black ink and production process thereof |
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