CN107760105A - A kind of Neutral writing ink - Google Patents
A kind of Neutral writing ink Download PDFInfo
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- CN107760105A CN107760105A CN201711090678.3A CN201711090678A CN107760105A CN 107760105 A CN107760105 A CN 107760105A CN 201711090678 A CN201711090678 A CN 201711090678A CN 107760105 A CN107760105 A CN 107760105A
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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
- C09D11/16—Writing inks
- C09D11/18—Writing inks specially adapted for ball-point writing instruments
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Abstract
The invention belongs to field of fine chemical, and in particular to a kind of Neutral writing ink.The present invention is preparing the process of mill base,Utilize hydrochloric acid,Nano-sized magnesium hydroxide is handled,Because nano-sized magnesium hydroxide is positively charged,And pass through hydrochloric acid,Surfactant is modified to carbon black,So as to increase its surface area,Improve absorption property,Nano-sized magnesium hydroxide is adsorbed in carbon blacksurface,So that carbon black pellet is positively charged,Again because paper pulp fiber is negatively charged,Positively charged there is a natural attraction between the sexes with carbon black,So as to improve its adhesive force on paper,And carbon black is only positively charged,Identical charges repel each other,Make intermolecular mutually exclusive,Avoid agglomeration,So as to dispersiveness enhancing,In addition,Electric charge also carries certain catalytic action,Utilize cyclobutanetetracarboxylic dianhydride simultaneously,Phosphoric acid diamines,Reaction between cresols,So as to introduce photosensitive group,Optical hazeization is catalyzed by catalytic action again to react,Improve rate of film build,So as to improve Neutral writing ink rate of drying.
Description
Technical field
The invention belongs to field of fine chemical, and in particular to a kind of Neutral writing ink.
Background technology
Based on the gel ink pen of filling Neutral writing ink, the advantages of having fountain pen and ball pen concurrently due to it, writing feel is more
Comfortably, it is smooth, ink marks convergence it is strong, can persistence, be oiliness ball pen upgraded product, be increasingly becoming market master
The writing implement of stream.Sales volume in recent years increases sharply, and is a class new product for a kind of great development prospect.
Neutral writing ink mill base is the pigment dispersion system of high degree of dispersion, is to pass through the media such as pigment and surfactant, water
Milled processed, pigment particles are made uniformly and stably to be dispersed in the presence of shearing force in water-based system.For Neutral writing ink
Dispersible pigment color paste, consisting of：Pigment, surfactant, auxiliary agent, deionized water etc..Wherein, the screening of pigment and surfactant
Preparation and final products performance for mill base have decisive role.
Existing Neutral writing ink production technology, two steps i.e. mill base preparation and ink allotment are generally divided into, particle size is suitable, property
Mill base that can be stable is the key point for preparing Neutral writing ink, and resistance to because having using colour carbon black as Neutral writing ink prepared by pigment
Water, it is sun-proof, bright in colour the advantages that, therefore in the market mostly using carbon black as raw material produce Neutral writing ink mill base.But pigment charcoal
Black because its structure has, primary particle diameter is small, specific surface area is big, has extremely strong active force between particle, can not be voluntarily in water
It is scattered, and process of lapping easily produces gel, so extremely unstable during production and storage.
In addition, the Neutral writing ink prepared by prior art after thermmal storage or stored frozen, easily cause pigment precipitation and
It can not use.Common Neutral writing ink stability problem is mainly shown as：Ink goes out during high temperature or low temperature storage for a long time
Existing pigment return slightly with flocculation, and phenomena such as the pigment precipitation ultimately resulted in is thickened with system.It is slightly face in dispersion that pigment, which returns,
Expect, due to a lack of the absorption again between the pigment caused by electric double layer protection and the protection of colloid steric hindrance, to show as ink and depositing
Its pigment particle size constantly increases during putting, until breaking the stable equilibrium of suspension system and causing pigment flocculation.Pigment flocculation
Refer to that pigment returns thick constantly aggravation until the phenomenon for causing pigment to form loose aggregates and precipitating in system.Pigment precipitation is main
Depending on the pigment particle size of system and the degree of scatter of pigment, typically mismatched by grinding deficiency, pigment and dispersant and
Dispersant usage amount is improper to be waited many reasons and causes.After system thickening refers to that Neutral writing ink is placed for a long time, there is viscosity increasing
Add, the phenomenon that rheology changes.
Therefore, it is necessary to develop a kind of good Neutral writing ink of novel stabilising performance again, solve nowadays existing ask
Topic, it is social with the demand about industry to be adapted to this.
The content of the invention
The technical problems to be solved by the invention：For current Neutral writing ink with colour carbon black raw material, but its structure has
Primary particle diameter is small, specific surface area is big, has extremely strong active force between particle, and self-dispersing, and process of lapping are unable in water
Easily produce gel, it is unstable during causing to produce and storing the problem of, there is provided a kind of Neutral writing ink.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of Neutral writing ink, by weight, the Neutral writing ink consist of the following composition：30 ~ 40 parts of deionized waters, 25 ~ 35
Part mill base, 10 ~ 15 parts of NMFs, 2 ~ 3 parts of thickeners, 1 ~ 5 part of lubricant, 1 ~ 2 part of surfactant, 1 ~ 2 part of pH adjusting agent, 1 ~
2 parts of photoactive substances, 0.1 ~ 0.3 part of bactericide.
Neutral writing ink according to claim 1, the preparation method of the mill base：
（1）In mass ratio 1：3 ~ 4, carbon black, 1.0mol/L hydrochloric acid solutions are mixed, 1 ~ 2h is soaked, filtering, obtains filter residue, will
Filter residue is washed with deionized, and the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 7 ~ 8：3~4：0.8 ~ 1, by crushed material, nanometer
Magnesium hydroxide, dodecyl sodium sulfate carry out ball milling, and ball milling speed is 200 ~ 260r/min, obtains ball milling thing；
（3）In mass ratio 20 ~ 25：10~15：1 ~ 2, deionized water, ball milling thing, sodium pyrophosphate are mixed, and with 100 ~
120r/min is stirred 10 ~ 15min, obtains mix and blend thing, and mix and blend thing is put into grinder, and with 3500 ~
4000rpm is ground 1 ~ 2h, obtains grinding dirt, produces mill base.
The NMF be propane diols, sorbierite it is therein any one.
The thickener is in mass ratio 1：1：3 ~ 4, acrylic acid, acrylate, 1.0mol/L ethanol solutions are mixed
Close, be heated to 40 ~ 60 DEG C, and be stirred with 80 ~ 100r/min, be cooled to room temperature, obtain cooling thing, produce thickener.
The lubricant is that aliphatic alcohol polyoxyvinethene phosphate, APES phosphate are therein any one
Kind.
The surfactant be dodecyl sodium sulfate, lauryl sodium sulfate it is therein any one.
The pH adjusting agent be diethanol amine, triethanolamine it is therein any one.
The photoactive substance is in mass ratio 1：1：3 ~ 4, cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresol liquor are entered
Row mixing, is heated to 150 ~ 200 DEG C, maintains 3 ~ 4h, obtains heating thing, produce photoactive substance.
The bactericide be potassium sorbate, sodium benzoate it is therein any one.
A kind of preparation method of Neutral writing ink, the preparation method comprise the following steps：By deionized water, mill base, NMF,
Lubricant, surfactant, photoactive substance, bactericide are put into container and mixed, and are stirred with 180 ~ 200r/min,
Uniformly rear addition thickener to be mixed, then adds pH adjusting agent, it is 7 ~ 8 to make pH value, after stirring, obtains the sticky glue of transparence
Body, produce Neutral writing ink.
Compared with other method, advantageous effects are the present invention：
（1）The present invention is preparing the process of mill base, is handled using hydrochloric acid, nano-sized magnesium hydroxide, due to nano-sized magnesium hydroxide
It is positively charged, and carbon black is modified by hydrochloric acid, surfactant, so as to increase its surface area, absorption property is improved, will
Nano-sized magnesium hydroxide is adsorbed in carbon blacksurface, so that carbon black pellet is positively charged, and because paper pulp fiber is negatively charged, with charcoal
There is a natural attraction between the sexes for black-tape positive charge, and so as to improve its adhesive force on paper, and carbon black is only positively charged, and identical charges repel each other, makes point
It is mutually exclusive between son, agglomeration is avoided, so as to dispersiveness enhancing, in addition, electric charge also carries certain catalytic action, while profit
With the reaction between cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresols, so as to introduce photosensitive group, then urged by catalytic action
Change optical hazeization reaction, rate of film build is improved, so as to improve Neutral writing ink rate of drying.
（2）The present invention is during Neutral writing ink is prepared, and each component, which all has, to have certain effect, wherein the effect of NMF
Predominantly prevent that Neutral writing ink active ingredient from volatilizing reduction with time lengthening, makes gel ink pen fluent writing, not dry ink, lubricant
The involve power of ink intertexture can effectively be broken, it is auxiliary to match somebody with somebody a certain amount of surfactant, come adjust the interval performance of ink,
Continuous writing performance and amount out of ink, thickener is a kind of high-molecular copolymer, due to thickener molecule Zhi Jianyu pigment and tree
Fat granule mutually tangles, and crosslinks and produces network structure, system is had structural viscosity, while the thickener is with stronger
Thixotropy, also have certain thickening effect, it is ensured that ink reaches the index of correlation in viscosity.
Embodiment
The preparation method of mill base：
（1）In mass ratio 1：3 ~ 4, carbon black, 1.0mol/L hydrochloric acid solutions are mixed, 1 ~ 2h is soaked, filtering, obtains filter residue, will
Filter residue is washed with deionized, and the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 7 ~ 8：3~4：0.8 ~ 1, by crushed material, nanometer
Magnesium hydroxide, dodecyl sodium sulfate carry out ball milling, and ball milling speed is 200 ~ 260r/min, obtains ball milling thing；
（3）In mass ratio 20 ~ 25：10~15：1 ~ 2, deionized water, ball milling thing, sodium pyrophosphate are mixed, and with 100 ~
120r/min is stirred 10 ~ 15min, obtains mix and blend thing, and mix and blend thing is put into grinder, and with 3500 ~
4000rpm is ground 1 ~ 2h, obtains grinding dirt, produces mill base.
NMF be propane diols, sorbierite it is therein any one.
Thickener is in mass ratio 1：1：3 ~ 4, acrylic acid, acrylate, 1.0mol/L ethanol solutions are mixed, added
Heat is stirred to 40 ~ 60 DEG C, and with 80 ~ 100r/min, is cooled to room temperature, is obtained cooling thing, produces thickener.
Lubricant be aliphatic alcohol polyoxyvinethene phosphate, APES phosphate it is therein any one.
Surfactant be dodecyl sodium sulfate, lauryl sodium sulfate it is therein any one.
PH adjusting agent be diethanol amine, triethanolamine it is therein any one.
Photoactive substance is in mass ratio 1：1：3 ~ 4, cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresol liquor are mixed
Close, be heated to 150 ~ 200 DEG C, maintain 3 ~ 4h, obtain heating thing, produce photoactive substance.
Bactericide be potassium sorbate, sodium benzoate it is therein any one.
A kind of Neutral writing ink, by weight, the Neutral writing ink consist of the following composition：30 ~ 40 parts of deionized waters, 25
~ 35 parts of mill bases, 10 ~ 15 parts of NMFs, 2 ~ 3 parts of thickeners, 1 ~ 5 part of lubricant, 1 ~ 2 part of surfactant, 1 ~ 2 part of pH regulation
Agent, 1 ~ 2 part of photoactive substance, 0.1 ~ 0.3 part of bactericide.
A kind of preparation method of Neutral writing ink, the preparation method comprise the following steps：By deionized water, mill base, NMF,
Lubricant, surfactant, photoactive substance, bactericide are put into container and mixed, and are stirred with 180 ~ 200r/min,
Uniformly rear addition thickener to be mixed, then adds pH adjusting agent, it is 7 ~ 8 to make pH value, after stirring, obtains the sticky glue of transparence
Body, produce Neutral writing ink.
Embodiment 1
The preparation method of mill base：
（1）In mass ratio 1：3, carbon black, 1.0mol/L hydrochloric acid solutions are mixed, 1h is soaked, filtering, filter residue is obtained, by filter residue
It is washed with deionized, the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 7：3：0.8, by crushed material, nanometer hydroxide
Magnesium, dodecyl sodium sulfate carry out ball milling, ball milling speed 200r/min, obtain ball milling thing；
（3）In mass ratio 20：10：1, deionized water, ball milling thing, sodium pyrophosphate are mixed, and stirred with 100r/min
10min is mixed, obtains mix and blend thing, mix and blend thing is put into grinder, and 1h is ground with 3500rpm, dirt must be ground
Thing, produce mill base.
NMF is propane diols.
Thickener is in mass ratio 1：1：3, acrylic acid, acrylate, 1.0mol/L ethanol solutions are mixed, heated
It is stirred to 40 DEG C, and with 80r/min, is cooled to room temperature, obtain cooling thing, produces thickener.
Lubricant is aliphatic alcohol polyoxyvinethene phosphate.
Surfactant is dodecyl sodium sulfate.
PH adjusting agent is diethanol amine.
Photoactive substance is in mass ratio 1：1：3, cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresol liquor are mixed,
150 DEG C are heated to, 3h is maintained, obtains heating thing, produce photoactive substance.
Bactericide is potassium sorbate.
A kind of Neutral writing ink, by weight, the Neutral writing ink consist of the following composition：30 parts of deionized waters, 25 parts
Mill base, 10 parts of NMFs, 2 parts of thickeners, 1 part of lubricant, 1 part of surfactant, 1 part of pH adjusting agent, 1 part of photoactive substance, 0.1
Part bactericide.
A kind of preparation method of Neutral writing ink, the preparation method comprise the following steps：By deionized water, mill base, NMF,
Lubricant, surfactant, photoactive substance, bactericide are put into container and mixed, and are stirred with 180r/min, wait to stir
Thickener is added after mixing uniformly, then adds pH adjusting agent, it is 7 to make pH value, after stirring, obtains transparence thick gel, i.e.,
Obtain Neutral writing ink.
Embodiment 2
The preparation method of mill base：
（1）In mass ratio 1：3.5, carbon black, 1.0mol/L hydrochloric acid solutions are mixed, 1.5h is soaked, filtering, obtains filter residue, will
Filter residue is washed with deionized, and the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 7.5：3.5：0.8, by crushed material, nanometer hydrogen
Magnesia, dodecyl sodium sulfate carry out ball milling, ball milling speed 220r/min, obtain ball milling thing；
（3）In mass ratio 23：13：1, deionized water, ball milling thing, sodium pyrophosphate are mixed, and stirred with 110r/min
13min is mixed, obtains mix and blend thing, mix and blend thing is put into grinder, and 1.5h is ground with 3825rpm, must be ground
Dirt, produce mill base.
NMF is propane diols.
Thickener is in mass ratio 1：1：3, acrylic acid, acrylate, 1.0mol/L ethanol solutions are mixed, heated
It is stirred to 50 DEG C, and with 90r/min, is cooled to room temperature, obtain cooling thing, produces thickener.
Lubricant is aliphatic alcohol polyoxyvinethene phosphate.
Surfactant is lauryl sodium sulfate.
PH adjusting agent is triethanolamine.
Photoactive substance is in mass ratio 1：1：3, cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresol liquor are mixed,
170 DEG C are heated to, 3.54h is maintained, obtains heating thing, produce photoactive substance.
Bactericide is potassium sorbate.
A kind of Neutral writing ink, by weight, the Neutral writing ink consist of the following composition：35 parts of deionized waters, 30 parts
Mill base, 13 parts of NMFs, 2 parts of thickeners, 4 parts of lubricants, 1 part of surfactant, 1 part of pH adjusting agent, 1 part of photoactive substance, 0.2
Part bactericide.
A kind of preparation method of Neutral writing ink, the preparation method comprise the following steps：By deionized water, mill base, NMF,
Lubricant, surfactant, photoactive substance, bactericide are put into container and mixed, and are stirred with 190r/min, wait to stir
Thickener is added after mixing uniformly, then adds pH adjusting agent, it is 8 to make pH value, after stirring, obtains transparence thick gel, i.e.,
Obtain Neutral writing ink.
Embodiment 3
The preparation method of mill base：
（1）In mass ratio 1：4, carbon black, 1.0mol/L hydrochloric acid solutions are mixed, 2h is soaked, filtering, filter residue is obtained, by filter residue
It is washed with deionized, the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 8：4：1, by crushed material, nano-sized magnesium hydroxide,
Dodecyl sodium sulfate carries out ball milling, ball milling speed 260r/min, obtains ball milling thing；
（3）In mass ratio 25：15：2, deionized water, ball milling thing, sodium pyrophosphate are mixed, and stirred with 120r/min
15min is mixed, obtains mix and blend thing, mix and blend thing is put into grinder, and 2h is ground with 4000rpm, dirt must be ground
Thing, produce mill base.
NMF is sorbierite.
Thickener is in mass ratio 1：1：4, acrylic acid, acrylate, 1.0mol/L ethanol solutions are mixed, heated
It is stirred to 60 DEG C, and with 100r/min, is cooled to room temperature, obtain cooling thing, produces thickener.
Lubricant is APES phosphate.
Surfactant is lauryl sodium sulfate.
PH adjusting agent is triethanolamine.
Photoactive substance is in mass ratio 1：1：4, cyclobutanetetracarboxylic dianhydride, phosphoric acid diamines, cresol liquor are mixed,
200 DEG C are heated to, 4h is maintained, obtains heating thing, produce photoactive substance.
Bactericide is sodium benzoate.
A kind of Neutral writing ink, by weight, the Neutral writing ink consist of the following composition：40 parts of deionized waters, 35 parts
Mill base, 15 parts of NMFs, 3 parts of thickeners, 5 parts of lubricants, 2 parts of surfactants, 2 parts of pH adjusting agents, 2 parts of photoactive substances, 0.3
Part bactericide.
A kind of preparation method of Neutral writing ink, the preparation method comprise the following steps：By deionized water, mill base, NMF,
Lubricant, surfactant, photoactive substance, bactericide are put into container and mixed, and are stirred with 200r/min, wait to stir
Thickener is added after mixing uniformly, then adds pH adjusting agent, it is 8 to make pH value, after stirring, obtains transparence thick gel, i.e.,
Obtain Neutral writing ink.
Comparative example：The Neutral writing ink of Cixi City nanosecond science and technology Co., Ltd production
Method：According to QB/T 4434-2012 standards, the Neutral writing ink produced to embodiment and comparative example carries out coherent detection.
The specific detection case of Neutral writing ink such as table 1
Table 1
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Viscosity（Pa.s） | 1284 | 1368 | 1589 | 1108 |
| Pen core centrifugal sedimentation | No color differnece | No color differnece | No color differnece | There is aberration |
| Granularity（nm） | 67 | 68 | 74 | 63 |
| Surface tension（mN/m） | 27.5 | 27.8 | 28.3 | 26.1 |
| Setting-out effect | Without broken string, without hollow, solid colour | Without broken string, without hollow, solid colour | Without broken string, without hollow, solid colour | There is slight broken string |
| Erasibility | Without void | Without void | Without void | There is slight void |
| Storage stability（Year） | 3 | 3 | 3 | 2 |
From the foregoing, it will be observed that the Neutral writing ink prepared by the present invention, using effect is good, is a kind of neutrality ink of low-cost and high-quality
Water, it is worthy to be popularized and uses.
Claims (9)
1. a kind of Neutral writing ink, it is characterised in that by weight, the Neutral writing ink consists of the following composition：30 ~ 40 parts are gone
Ionized water, 25 ~ 35 parts of mill bases, 10 ~ 15 parts of NMFs, 2 ~ 3 parts of thickeners, 1 ~ 5 part of lubricant, 1 ~ 2 part of surfactant, 1 ~ 2
Part pH adjusting agent, 1 ~ 2 part of photoactive substance, 0.1 ~ 0.3 part of bactericide.
2. Neutral writing ink according to claim 1, it is characterised in that the preparation method of the mill base：
（1）In mass ratio 1：3 ~ 4, carbon black, 1.0mo/L hydrochloric acid solutions are mixed, 1 ~ 2h is soaked, filtering, obtains filter residue, will filter
Slag is washed with deionized, and the filter residue after must washing, the filter residue after washing is freeze-dried, obtains dried object；
（2）Dried object is put into pulverizer and crushed, obtains crushed material, in mass ratio 7 ~ 8：3~4：0.8 ~ 1, by crushed material, nanometer
Magnesium hydroxide, dodecyl sodium sulfate carry out ball milling, and ball milling speed is 200 ~ 260r/min, obtains ball milling thing；
（3）In mass ratio 20 ~ 25：10~15：1 ~ 2, deionized water, ball milling thing, sodium pyrophosphate are mixed, and with 100 ~
120r/min is stirred 10 ~ 15min, obtains mix and blend thing, and mix and blend thing is put into grinder, and with 3500 ~
4000rpm is ground 1 ~ 2h, obtains grinding dirt, produces mill base.
3. Neutral writing ink according to claim 1, it is characterised in that the NMF is therein of propane diols, sorbierite
Meaning is a kind of.
4. Neutral writing ink according to claim 1, it is characterised in that the thickener is in mass ratio 1：1：3 ~ 4, by propylene
Acid, acrylate, 1.0mol/L ethanol solutions are mixed, and are heated to 40 ~ 60 DEG C, and are stirred with 80 ~ 100r/min, are treated
Room temperature is cooled to, obtains cooling thing, produces thickener.
5. Neutral writing ink according to claim 1, it is characterised in that the lubricant is AEO phosphoric acid
Ester, APES phosphate it is therein any one.
6. Neutral writing ink according to claim 1, it is characterised in that the surfactant is dodecyl sodium sulfate, ten
Sodium dialkyl sulfate it is therein any one.
7. Neutral writing ink according to claim 1, it is characterised in that the pH adjusting agent be diethanol amine, triethanolamine its
In any one.
8. Neutral writing ink according to claim 1, it is characterised in that the photoactive substance is in mass ratio 1：1：3 ~ 4, by ring
Ethylene-dimalonic acid dianhydride, phosphoric acid diamines, cresol liquor are mixed, and are heated to 150 ~ 200 DEG C, are maintained 3 ~ 4h, are obtained heating thing, i.e.,
Obtain photoactive substance.
9. Neutral writing ink according to claim 1, it is characterised in that the bactericide be potassium sorbate, sodium benzoate its
In any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090678.3A CN107760105A (en) | 2017-11-08 | 2017-11-08 | A kind of Neutral writing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090678.3A CN107760105A (en) | 2017-11-08 | 2017-11-08 | A kind of Neutral writing ink |
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| Publication Number | Publication Date |
|---|---|
| CN107760105A true CN107760105A (en) | 2018-03-06 |
Family
ID=61273322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711090678.3A Pending CN107760105A (en) | 2017-11-08 | 2017-11-08 | A kind of Neutral writing ink |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639262A (en) * | 2002-01-15 | 2005-07-13 | 株式会社Pi技术研究所 | Solvent-soluble block copolyimide composition and process for producing the same |
| CN102268206A (en) * | 2011-06-17 | 2011-12-07 | 杭州华大海天科技有限公司 | Black ink for gel-ink pen and preparation method thereof |
| CN106715606A (en) * | 2014-06-16 | 2017-05-24 | Bic公司 | Photocrosslinkable writing ink |
| CN106750586A (en) * | 2016-11-25 | 2017-05-31 | 南宁市黑晶信息技术有限公司 | Good high resiliency plastic material of a kind of heat resistance and preparation method thereof |
-
2017
- 2017-11-08 CN CN201711090678.3A patent/CN107760105A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639262A (en) * | 2002-01-15 | 2005-07-13 | 株式会社Pi技术研究所 | Solvent-soluble block copolyimide composition and process for producing the same |
| CN102268206A (en) * | 2011-06-17 | 2011-12-07 | 杭州华大海天科技有限公司 | Black ink for gel-ink pen and preparation method thereof |
| CN106715606A (en) * | 2014-06-16 | 2017-05-24 | Bic公司 | Photocrosslinkable writing ink |
| CN106750586A (en) * | 2016-11-25 | 2017-05-31 | 南宁市黑晶信息技术有限公司 | Good high resiliency plastic material of a kind of heat resistance and preparation method thereof |
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Application publication date: 20180306 |