CN102337057B - Erasable ink composition for ball pen and preparation method thereof - Google Patents
Erasable ink composition for ball pen and preparation method thereof Download PDFInfo
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- CN102337057B CN102337057B CN201010239717.3A CN201010239717A CN102337057B CN 102337057 B CN102337057 B CN 102337057B CN 201010239717 A CN201010239717 A CN 201010239717A CN 102337057 B CN102337057 B CN 102337057B
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Abstract
The invention discloses an erasable ink composition for a ball pen, comprising the following ingredients: 31.9-60 wt% of low boiling point solvent, 5-20 wt% of medium boiling point solvent, 5-35 wt% of plasticizer, 8-22.5 wt% of elastomer resin, 6-15 wt% of pigment, 0.5-5 wt% of tackifier, and 0-2 wt% of ink rheological agent. The preparation method comprises the following steps: dissolving the elastomer resin in a mixed solvent of the low boiling point solvent and the medium boiling point solvent until fully dissolving; wetting, dispersing, and grinding the pigment with the plasticizer to form a thick pigment paste, and controlling the particle fineness to be 0.01-5 mm; and uniformly mixing the dissolved elastomer resin solution, grinded pigment paste, the tackifier, and the ink rheological agent, and extruding and filtering to obtained the erasable ink composition for the ball pen. The prepared erasable ink composition for the ball pen has the advantages of little difference between batches, good writing performance, good oil leaking and preservation performance, environmental protection, and no harm to health.
Description
Technical field
The present invention relates to a kind of ink composite and preparation method thereof, particularly a kind of Erasable ink composition for ball pen and preparation method thereof.
Background technology
Ballpoint pen erasable ink has come out 20 years left and right time, from writing in the past serious broken string pit, write feel and be poor to present write line road normal, feel is still weaker than common ball pen ink, but because it has the rubber of using wiped clean, the function with modification, is still ceaselessly developing.At present on the market erasable ball pen ink exist write, the problem of the aspect such as preservation, outward appearance and steady quality, erasable ball pen ink is in the past used natural or synthetic rubber substantially completely, basic for natural rubber, rubber solvent naphtha (being generally gasoline, benzene or dimethylbenzene) they are solvent, can play to natural rubber that the softening agent of some softening plasticization effects and pigment produces adding.Because use gasoline equal solvent, make to write the petrolic solvent volatilization that volatility is very high, smell is very serious, so have a strong impact on health, it is all filling in having the stainless steel oil pipe of certain air pressure letting alone general erasable ball pen ink, uses danger very high.And at present to the softening agent of good this large class of phthalic ester of natural rubber plasticization effect all because Environmental Safety problem is inhibited in stationery industry and uses; In addition, on writing, also there is first stroke of a Chinese character broken string in the ink of producing at present, nib writes with the leakage of oil of oil pipe junction, the rear ink of long-time placement the problem that broken string pit is serious, and in the different shortcoming of different paper surface writing effect, after existing ballpoint pen erasable Printing ink producing, between product batches, difference is also very large.
Summary of the invention
In order to overcome above-mentioned defect, a kind of Erasable ink composition for ball pen provided by the invention and preparation method thereof, is used that between the Erasable ink composition for ball pen product batches that this preparation method produces, difference is little, writing quality good, and leakage of oil and keeping quality are good.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of Erasable ink composition for ball pen, comprise following component, and the per-cent that accounts for composition total weight represents:
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15;
The molecular weight of described elastomer resin between 200000～700000, in polyvinyl acetate resin and ethylene vinyl acetate elastomerics at least one.
As the present invention, further improve, in order to reach solvent, volatilize fast, do not carry pigment and resin penetration in paper space, preferably 70～100 ℃ of described low boiling point solvent boiling points, as oil extracts solvent: straight chain lower paraffin hydrocarbons and rudimentary naphthenic hydrocarbon, as long as boiling point is in the scope requiring, consumption is composition total weight 31.9～45%.
As the present invention, further improve, in order to reach ink, at nib place, there is certain volatilization time, make ink there is writing quality at better intermittence, preferably 120～180 ℃ of medium-boiling solvent boiling points, as oil extracts solvent: straight chain lower paraffin hydrocarbons, rudimentary naphthenic hydrocarbon, ether, alcohol and alcohol ether, as long as boiling point is in the scope requiring, consumption is composition total weight 5～15%, described medium-boiling solvent needs the complete mixing of elastomer resin that can dissolve with low boiling point solvent, not stratified separating out.
As the present invention, further improve, as long as described softening agent can be by the good plasticising of elastomer resin, high and low temperature resistance is good, as: epoxy soybean oil, fatty silicon ester, tributyl citrate, ATBC, hexanodioic acid certain herbaceous plants with big flowers diester, alkyl sulfonic ester, alkyl sulfonic ester etc., in order to make ink stability higher, select the softening agent higher with elastomer resin coordination, as alkyl sulfonic ester and alkyl sulfonic ester etc., optimum consumption is composition total weight 10～20%; Plasticizer consumption is low, resin can not be plastified completely, writes feel unfluent; Plasticizer consumption is higher, can cause again excessively plasticizing and cannot obtain and write normally circuit of resin.
As the present invention, further improve, described elastomer resin consumption is composition total weight 10～22.5%.
As the present invention, further improve, described pigment oil-proofness, light permanency and solvent resistance be all more than 3 grades, its easy grinding distribution to 5 micron following can, as: as carbon black, acetylene black, ivory black and the nigrosine etc. of black pigment; Organic yellow, permanent yellow, naphthol yellow S, hansa yellow G, organic yellow 10G, benzidine yellow G and benzidine yellow G R etc. as yellow ultramarine; As the permanent orange GTR of orange pigments and Benzidine orange G etc.; Permanent bordeaux, lithol red and pyrazolone red etc. as red pigment; Alkali blue lake, victoria blue color lake, phthalocyanine blue and indanthrene blue BC etc. as blue pigments; As the pigment green B of veridian, phthalocyanine green, naphthol green etc.; Above-mentioned pigment can be used separately, also can two or more be used in combination, and optimum consumption is composition total weight 8～15%, and amount of pigment is on the low side, writes color and luster partially light, affects use properties; Amount of pigment is higher, and granules of pigments is easily assembled and made to write circuit and produce pit and erasable degradation.
As the present invention, further improve, described tackifier are for can be dissolved in one of described lower boiling and medium-boiling solvent, and can promote a kind of in the natural and synthetic resins of system viscosity, add some tackifier, can make ink have more darker contacting at nib place with nib, make to write circuit full, prevent that ink from writing circuit breaking because system is too lubricated at some smooth interfaces of writing, and can improve ink first stroke of a Chinese character writing quality, because erasable ink adopts high volatile volatile solvent, nib place solvent is easy to volatilization and makes the first stroke of a Chinese character write broken string obviously, after adding a certain amount of tackifier, can alleviate this phenomenon, conventional tackifier are: polyvinylpyrrolidone, natural rosin, modified natural rosin, staybelite, natural rubber, polyvinyl butyral acetal and polyacrylic resin, preferable amount is 0.5～3% of composition total weight.
As the present invention, further improve, described ink auxiliary rheological agents improves system rheological performance for ink, conventional as polyurea modified auxiliary rheological agents, inorganic bentonite, aerosil, urethane etc., add certain auxiliary rheological agents, making ink time is high viscosity state in storage, and brings ink some shear-stresses when the ball of nib rolls, the viscosity of ink will decline, make to write feel smoothness, circuit is full, and its optimum consumption is composition total weight 0.1～1%.
As the present invention, further improve, also comprise rust-preventive agent and anti skinning agent, the weight summation of wherein said low boiling point solvent, medium-boiling solvent, softening agent, elastomer resin, pigment, tackifier and ink rheology adjuvant component accounts for 95～100% of composition total weight.
A preparation method for Erasable ink composition for ball pen, concrete steps are as follows:
Step 1: the elastomer resin that accounts for composition total weight 8～22.5% is dissolved in and accounts for the lower boiling of composition total weight 31.9～60% and account in the mid-boiling point mixed solvent of composition total weight 5～20%, standby after elastomer resin dissolves completely;
Step 2: account for composition total weight 6～15% pigment by the wetting dispersion grinding of the softening agent that accounts for composition total weight 5～35% simultaneously, form thick pigment paste standby, control granules of pigments fineness at 0.01～5 micron;
Step 3: the elastomer resin solution of having dissolved, ground pigment paste, the tackifier that account for composition total weight 0.5～5%, the ink auxiliary rheological agents that accounts for composition total weight 0～2% are thoroughly mixed;
Step 4: obtain ballpoint pen erasable ink by press filtration.
The invention has the beneficial effects as follows: use that between the Erasable ink composition for ball pen product batches that this preparation method produces, difference is little, writing quality good, leakage of oil and keeping quality are good, and the present invention adopts environment-friendly materials to make, to healthy harmless, environmentally safe, is used safe, durable.
Embodiment
Embodiment mono-:
Composition of the present invention and component concentration following (unit be gram):
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15.
Preparation method of the present invention is as follows:
22.5 grams of polyvinyl acetate resins are dissolved in 21.9 grams of lower boilings and 15 grams of mid-boiling point mixed solvents, standby after resin dissolves completely; With the wetting 15 grams of charcoal blacks of dispersion grinding of 25 grams of softening agent, form thick pigment paste standby simultaneously, control granules of pigments fineness at 0.01～5 micron; The resin solution having dissolved, ground pigment paste, 0.5 gram of rosin, 0.1 gram of aerosil are thoroughly mixed, more obtain product by press filtration.
Embodiment bis-
Composition of the present invention and component concentration following (unit be gram):
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15.
Preparation method of the present invention is as follows:
20 grams of ethylene vinyl acetate elastomericss are dissolved in 31.9 grams of lower boilings and 10 grams of mid-boiling point mixed solvents, standby after resin dissolves completely; With the wetting 15 grams of charcoal blacks of dispersion grinding of 22 grams of softening agent, form thick pigment paste standby simultaneously, control granules of pigments fineness at 0.01～5 micron; The resin solution having dissolved, ground pigment paste, 1.0 grams of polyvinyl butyral acetals, 0.1 gram of aerosil are thoroughly mixed, more obtain product by press filtration.
Embodiment tri-:
Composition of the present invention and component concentration following (unit be gram):
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15.
Preparation method of the present invention is as follows:
18 grams of polyvinyl acetate resins and ethylene vinyl acetate elastomerics are dissolved in 39 grams of lower boilings and 12 grams of mid-boiling point mixed solvents, and elastomer resin to be mixed dissolves rear standby completely; With the wetting 10 grams of permanent bordeaux pigment of dispersion grinding of 20 grams of softening agent, form thick pigment paste standby simultaneously, control granules of pigments fineness at 0.01～5 micron; The resin solution having dissolved, ground pigment paste, 1.0 grams of polyvinyl butyral acetals are thoroughly mixed, more obtain product by press filtration.
Embodiment tetra-:
Composition of the present invention and component concentration following (unit be gram):
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15.
Preparation method of the present invention is as follows:
18 grams of polyvinyl acetate resins and ethylene vinyl acetate elastomerics are dissolved in 36.2 grams of lower boilings and 12 grams of mid-boiling point mixed solvents, and resin to be mixed dissolves rear standby completely; With 10 grams of victoria blue color lakes of the wetting dispersion grinding of 23 grams of softening agent, form thick blue pigments paste standby simultaneously, control granules of pigments fineness at 0.01～5 micron; The resin solution having dissolved, ground pigment paste, 0.8 gram of modified rosin are thoroughly mixed, more obtain product by press filtration.
Embodiment five:
Composition of the present invention and component concentration following (unit be gram):
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15.
Preparation method of the present invention is as follows:
25 grams of polyvinyl acetate resins are dissolved in 34.4 grams of lower boilings and 10 grams of mid-boiling point mixed solvents, standby after resin dissolves completely; With the wetting 12 grams of phthalocyanine green pigments of dispersion grinding of 18 grams of ATBC, form thick veridian paste standby simultaneously, control granules of pigments fineness at 0.01～5 micron.The resin solution having dissolved, ground pigment paste, 0.5 gram of rosin, 0.1 gram of aerosil are thoroughly mixed, more obtain product by press filtration.
Claims (10)
1. an Erasable ink composition for ball pen, is characterized in that, comprises following component, to account for the per-cent of composition total weight, represents:
Described low boiling point solvent be boiling point lower than 120 ℃, the solvent that rate of volatilization is 3～8;
Described medium-boiling solvent be boiling point lower than 200 ℃, higher than 120 ℃, the solvent that rate of volatilization is 8～15;
The molecular weight of described elastomer resin between 200000～700000, in polyvinyl acetate resin and ethylene vinyl acetate elastomerics at least one.
2. Erasable ink composition for ball pen according to claim 1, is characterized in that: described low boiling point solvent consumption is composition total weight 31.9～45%.
3. Erasable ink composition for ball pen according to claim 1, is characterized in that: described medium-boiling solvent consumption is composition total weight 5～15%.
4. Erasable ink composition for ball pen according to claim 1, is characterized in that: described plasticizer consumption is composition total weight 12～28%.
5. Erasable ink composition for ball pen according to claim 1, is characterized in that: described elastomer resin consumption is composition total weight 10～22.5%.
6. Erasable ink composition for ball pen according to claim 1, is characterized in that: described pigment oil-proofness, light permanency and solvent resistance be all more than 3 grades, and consumption is composition total weight 8～15%.
7. Erasable ink composition for ball pen according to claim 1, it is characterized in that: described tackifier are to be dissolved in one of described lower boiling and medium-boiling solvent, and can promote a kind of in the natural and synthetic resins of system viscosity, consumption is composition total weight 0.5～3%.
8. Erasable ink composition for ball pen according to claim 1, is characterized in that: described ink rheology auxiliary dosage is composition total weight 0.1～1%.
9. Erasable ink composition for ball pen according to claim 1, it is characterized in that: also comprise rust-preventive agent and anti skinning agent, the weight summation of wherein said low boiling point solvent, medium-boiling solvent, softening agent, elastomer resin, pigment, tackifier and ink rheology adjuvant component accounts for 95～100% of composition total weight.
10. a preparation method for Erasable ink composition for ball pen claimed in claim 1, is characterized in that: concrete steps are as follows:
Step 1: by account for composition total weight 8～22.5% elastomer resins be dissolved in account for composition total weight 31.9～60% lower boiling and account in the mid-boiling point mixed solvent of composition total weight 5～20%, standby after elastomer resin dissolves completely;
Step 2: account for the pigment of composition total weight 6～15% simultaneously by the wetting dispersion grinding of the softening agent that accounts for composition total weight 5～35%, form thick pigment paste standby, control granules of pigments fineness at 0.01～5 micron;
Step 3: the elastomer resin solution of having dissolved, ground pigment paste, the tackifier that account for composition total weight 0.5～5%, the ink auxiliary rheological agents that accounts for composition total weight 0～2% are thoroughly mixed;
Step 4: obtain ballpoint pen erasable ink by press filtration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010239717.3A CN102337057B (en) | 2010-07-28 | 2010-07-28 | Erasable ink composition for ball pen and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010239717.3A CN102337057B (en) | 2010-07-28 | 2010-07-28 | Erasable ink composition for ball pen and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102337057A CN102337057A (en) | 2012-02-01 |
| CN102337057B true CN102337057B (en) | 2014-04-16 |
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| CN201010239717.3A Active CN102337057B (en) | 2010-07-28 | 2010-07-28 | Erasable ink composition for ball pen and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103911036B (en) * | 2014-04-30 | 2016-01-20 | 苏州安洁科技股份有限公司 | Silk screen printing bright black ink |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329262A (en) * | 1981-03-25 | 1982-05-11 | Scripto, Inc. | Initially erasable ink composition for a ball point writing instrument |
| CN1484681A (en) * | 2000-08-24 | 2004-03-24 | �̿˹�˾ | Solvent-based non-fluorescent inks for writing instruments based upon pigment dispersions in non-aqueous solvents |
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2010
- 2010-07-28 CN CN201010239717.3A patent/CN102337057B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329262A (en) * | 1981-03-25 | 1982-05-11 | Scripto, Inc. | Initially erasable ink composition for a ball point writing instrument |
| CN1484681A (en) * | 2000-08-24 | 2004-03-24 | �̿˹�˾ | Solvent-based non-fluorescent inks for writing instruments based upon pigment dispersions in non-aqueous solvents |
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| CN102337057A (en) | 2012-02-01 |
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Address after: 215343 Jiangsu province Kunshan City Qiandeng Yanwu Road No. 889 Applicant after: Lotus Stationery Co., Ltd. Address before: 215343 Jiangsu province Kunshan City Qiandeng Yanwu Road on the eastern side Applicant before: Zhencai Stationery Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHENCAI STATIONERY CO., LTD. TO: ZHENCAI STATIONERY SHARES CO., LTD. |
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