CN106675201A - High-adhesion code printing ink - Google Patents
High-adhesion code printing ink Download PDFInfo
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- CN106675201A CN106675201A CN201510766415.4A CN201510766415A CN106675201A CN 106675201 A CN106675201 A CN 106675201A CN 201510766415 A CN201510766415 A CN 201510766415A CN 106675201 A CN106675201 A CN 106675201A
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Abstract
The invention discloses a high-adhesion code printing ink which is prepared from the following raw materials in percentage by mass: 4-8% of chlorinated polypropylene, 4-6% of rosin resin, 50-65% of butanone, 15-23% of methylbenzene, 5-10% of solvent-type dye, 1-2% of dibutyl phthalate, 1-2% of adhesion promoter and 0.2-0.5% of paraffin. By using the chlorinated polypropylene as the main resin, the chlorinated polypropylene has favorable wettability on the PE (polyethylene) substrate; and the ink prepared from the chlorinated polypropylene has lower viscosity. However, the ink prepared from the chlorinated polypropylene does not have high adhesion on PE; and therefore, the rosin resin is adopted for compounding, so that the high-adhesion ink with favorable adhesion and satisfactory viscosity can be obtained. The butanone and methylbenzene are used as the mixed solvent, so that the chlorinated polypropylene and rosin resin can be well dissolved in the mixed solvent, thereby lowering the viscosity of the ink.
Description
Technical field
The present invention relates to technical field of ink, more particularly, to a kind of high adhesion force code-spraying printing ink.
Background technology
With the growing interest to safety problem, existing legal provisions must indicate the explanation for date of manufacture, lot number, shelf-life etc. protecting consumer rights on the label of the products such as food, medicine, cosmetics.It is widely used in label explanation because code-spraying printing ink has a series of excellent properties such as clear writing, stable performance, scrubbing resistance.But, adhesive force of the existing code-spraying printing ink on the grounds such as PVC, PE is still poor, needs separately to carry out ground pretreatment, such as treatment measures such as corona, polarization when in use, and by improving the surface energy of ground good attachment can be realized.In addition, in view of the enhancing of environmental consciousness, especially in the packaging in the fields such as food, medicine, cosmetics, to the environmental-protecting performance of code-spraying printing ink new challenge is it is also proposed.
The content of the invention
The purpose of the present invention is the defect for overcoming above-mentioned prior art, there is provided a kind of high adhesion force code-spraying printing ink, has the advantages that viscosity is low, adhesive force is strong, quick-drying is suitable, stability is high.
The purpose of the present invention is achieved through the following technical solutions：
A kind of high adhesion force code-spraying printing ink, is obtained by the raw material of following mass fraction：It is obtained by the raw material of following mass fraction：Chlorinated polypropylene 4 ~ 8%, rosin resin 4 ~ 6%, butanone 50 ~ 65%, toluene 15 ~ 23%, solvent dye 5 ~ 10%, dibutyl phthalate 1 ~ 2%, adhesion promoter 1 ~ 2%, paraffin 0.2 ~ 0.5%..
It is that and being used for frosting ink should possess first two fundamental propertys with polyethylene ground to carry object to considering for ink combination property in the present invention：One is that ink must have good adhesive force to plastics.There is good attachment on PE grounds, the corrosion that by changing the composition of solvent PE surfaces should be made appropriate is so that it produces good moistening.Two to be that the structure of resin in ink should try one's best similar to PE.PE is a kind of non-polar polymer being crosslinked by C-H bond, former from polarity should being selected relatively small, the similar polyene compound of molecular structure according to similar compatibility., from chlorinated polypropylene as matrix resin, wettability of the chlorinated polypropylene on PE grounds is preferable, and ink viscosity is relatively low by obtained in chlorinated polypropylene for the present invention.But it is not eventually very strong that chlorinated polypropylene matches somebody with somebody attachment of the ink on PE, thus has also selected rosin resin to be compounded, and the good viscosity of adhesive force satisfactory High-adhesion ink again is so just obtained.Because resin is used as the major part of ink solid constituent, the impact to ink substrate adhesion plays definitely effect, thus ink adhesion increases with the increase of resin quality fraction.But based on considering to ink viscosity, the mass fraction of hybrid resin is：Chlorinated polypropylene 4 ~ 8%, rosin resin 4 ~ 6%.
Solvent accounts for the overwhelming majority of ink, although solvent can volatilize after ink film, but the performance such as the immixture of the volatility of solvent, viscosity, dissolubility, the corrosivity to ground and solvent all has large effect to the adhesive force of ink.And the selection to solvent is considered as：One is that solvent can well dissolve selected resin, and the macromolecular chain in resin can be made intactly to launch.Two is that the solubility parameter of solvent and ground are closer to, by corrosive nature of the increase to ground, so that surface of bottom material generation is less swelling, in so contributing to the molecular structure that the components such as resin penetrate into surface of bottom material.Three is impact of the solvent to ink evaporation rate., from toluene and butanone as mixed solvent, dissolubility of the hybrid resin in toluene is preferable, and macromolecular chain can sufficiently uniformly launch, and finer and close resin film can be formed after solvent volatile dry, and film cohesiveness is good for the present invention.In addition, toluene is good to the corrosivity of PE grounds, when ink is sprayed at PE grounds, toluene can make it produce certain swelling action, produce certain active group, so that resin macromolecule can be embedded in PE surfaces and be anchored, increase adhesive force of the ink to ground.And butanone can reduce the viscosity of ink, and find that using butanone be solvent in experimentation, film is brighter, and ink colors are more bright-coloured.With the increase of solvent ratio in ink, the adhesive force of ink is then reduced, therefore the mass fraction of butanone is controlled 50 ~ 65% in the present invention, and the mass fraction of toluene is controlled in toluene 15 ~ 23%.
Ink coloring agent is divided into pigment and the big class of dyestuff two, compared with solvent dye, the alcohol resistance of the ink being made up of pigment is preferable, it is substantially insoluble in ethanol, but the viscosity using the made ink of pigment is too big, and dispersibility is not so good as solvent dye, thus the present invention selects solvent dye as coloring agent.Because solvent dye is slightly soluble in ethanol, especially when its content in ink is more than 10%, alcohol resistance is gradually deteriorated；And when being less than 5%, the colourity of ink is again weaker, requirement is not reached, therefore the mass fraction of solvent dye is 5 ~ 10%.Under some specific environmental conditions, excellent ink is adhered to originally also the problem for coming off, and at this moment can increase some adhesion promoters, the adhesion performance for keeping ink film excellent.A small amount of paraffin is added to reduce the viscosity of ink, but the viscosity of High-adhesion ink is much bigger compared with the viscosity of alcohol resistance ink, therefore the mass fraction of paraffin of the present invention is controlled 0.2 ~ 0.5%.
Plasticizer is a kind of high boiling point, low-volatile fixation or liquid compound, is mainly used to increase the plasticity of polymer substance.Plasticizer is little due to molecular weight, when mixing with the macromolecular compound such as resin, can penetrate between macromole long-chain, play a part of similar lubrication, make molecular resin long-chain potential motion freer, so that polymer becomes soft and high resilience, increase the pliability of ink.Little additionally, due to molecular weight, volume less, can be enriched between the chain link of macromole, increase its spacing, and the captivation for making interchain is reduced, and reduce the trend that embrittlement is wrecked, and adhesive force is effectively increased to a certain extent.From dibutyl phthalate as plasticizer, it can play iris action to the present invention to the main side chain in rosin resin or chlorinated polypropylene molecule, the active force between polymer molecule be reduced, so as to strengthen adhesive force.When consumption is below 2%, adhesive force increases with the increase of consumption；During more than 2%, the adhesive force of ink increases less or even without growth, and quick-drying performance is reduced, and viscosity increase, film performance is reduced.Therefore, the mass fraction of dibutyl phthalate of the present invention is controlled 1 ~ 2%.Due to predicting the material that code-spraying printing ink is used, and the adhesive force of ink has substantial connection with ground, falls off to prevent script from adhering to excellent ink, the adhesion performance that can increase some adhesion promoters to keep ink film excellent.During due to addition more than 2%, ink occurs cotton-shaped liquid, therefore the mass fraction of adhesion promoter of the present invention is maintained at 1 ~ 2%.
Further, the butanone and the mass ratio of the toluene are 5:2.It is in mixed solvent, although butanone plus membership reduction ink adhesive force but for the more single toluene solvant of the depreciation and few.Now, what both ratios more should be considered is the impact to ink viscosity.For chlorinated polypropylene, butanone is good solvent, and the dissolubility in toluene is then slightly worse；And for rosin resin, toluene is good solvent, the dissolubility in butanone is then slightly worse.Jing experiments find, when butanone and toluene ratio are up to 5:When 2, the chlorinated polypropylene and rosin resin in hybrid resin preferably can dissolve wherein, so that viscosity is reduced.
To realize preferable combination property, further, it is obtained by the raw material of following mass fraction：Chlorinated polypropylene 5%, rosin resin 5%, solvent dye 8%, dibutyl phthalate 2%, adhesion promoter 1.5%, paraffin 0.3%, balance of butanone and toluene.The adhesive force of prepared ink is up to 0.28N/mm2。
Further, the chlorinated polypropylene and the mass ratio of the rosin resin are 1:1.It is found through experiments, with the increase of rosin resin, ink adhesion and viscosity are in increase trend, and when a small amount of rosin resin is added, ink attachment value added is not obvious, illustrate that rosin resin need to reach a certain amount of can reach potentiation to ink adhesion.When two resinoid ratios account for 50% in ink, the adhesive force of ink reaches new peak, and ink viscosity is suitable.
Further, the adhesion promoter is 6018.6018 with ink in hybrid resin and mixed solvent match.
Further, the solvent dye is SLB-34.
The invention has the advantages that：In the present invention, from chlorinated polypropylene as matrix resin, wettability of the chlorinated polypropylene on PE grounds is preferable, and ink viscosity is relatively low by obtained in chlorinated polypropylene.But it is not eventually very strong that chlorinated polypropylene matches somebody with somebody attachment of the ink on PE, thus has also selected rosin resin to be compounded, and the good viscosity of adhesive force satisfactory High-adhesion ink again is so just obtained.From butanone and toluene as mixed solvent, chlorinated polypropylene and rosin resin can be preferably dissolved in wherein, so as to reduce the viscosity of ink.From dibutyl phthalate as plasticizer, it can play iris action to the main side chain in rosin resin or vinyl chloride-vinyl acetate resin molecule, the active force between polymer molecule be reduced, so as to strengthen adhesive force；Adhesion promoter is added further to keep the excellent adhesion performance of ink film.The present invention has the advantages that viscosity is low, adhesive force is strong, quick-drying is suitable, stability is high under the requirement for meeting environmental-protecting performance..
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
A kind of high adhesion force code-spraying printing ink, is obtained by the raw material of following mass fraction：It is obtained by the raw material of following mass fraction：Chlorinated polypropylene 4 ~ 8%, rosin resin 4 ~ 6%, butanone 50 ~ 65%, toluene 15 ~ 23%, solvent dye 5 ~ 10%, dibutyl phthalate 1 ~ 2%, adhesion promoter 1 ~ 2%, paraffin 0.2 ~ 0.5%..
It is that and being used for frosting ink should possess first two fundamental propertys with polyethylene ground to carry object to considering for ink combination property in the present embodiment：One is that ink must have good adhesive force to plastics.There is good attachment on PE grounds, the corrosion that by changing the composition of solvent PE surfaces should be made appropriate is so that it produces good moistening.Two to be that the structure of resin in ink should try one's best similar to PE.PE is a kind of non-polar polymer being crosslinked by C-H bond, former from polarity should being selected relatively small, the similar polyene compound of molecular structure according to similar compatibility., from chlorinated polypropylene as matrix resin, wettability of the chlorinated polypropylene on PE grounds is preferable, and ink viscosity is relatively low by obtained in chlorinated polypropylene for the present invention.But it is not eventually very strong that chlorinated polypropylene matches somebody with somebody attachment of the ink on PE, thus has also selected rosin resin to be compounded, and the good viscosity of adhesive force satisfactory High-adhesion ink again is so just obtained.Because resin is used as the major part of ink solid constituent, the impact to ink substrate adhesion plays definitely effect, thus ink adhesion increases with the increase of resin quality fraction.But based on considering to ink viscosity, the mass fraction of hybrid resin is：Chlorinated polypropylene 4 ~ 8%, rosin resin 4 ~ 6%.
Solvent accounts for the overwhelming majority of ink, although solvent can volatilize after ink film, but the performance such as the immixture of the volatility of solvent, viscosity, dissolubility, the corrosivity to ground and solvent all has large effect to the adhesive force of ink.And the selection to solvent is considered as：One is that solvent can well dissolve selected resin, and the macromolecular chain in resin can be made intactly to launch.Two is that the solubility parameter of solvent and ground are closer to, by corrosive nature of the increase to ground, so that surface of bottom material generation is less swelling, in so contributing to the molecular structure that the components such as resin penetrate into surface of bottom material.Three is impact of the solvent to ink evaporation rate., from toluene and butanone as mixed solvent, dissolubility of the hybrid resin in toluene is preferable, and macromolecular chain can sufficiently uniformly launch, and finer and close resin film can be formed after solvent volatile dry, and film cohesiveness is good for the present invention.In addition, toluene is good to the corrosivity of PE grounds, when ink is sprayed at PE grounds, toluene can make it produce certain swelling action, produce certain active group, so that resin macromolecule can be embedded in PE surfaces and be anchored, increase adhesive force of the ink to ground.And butanone can reduce the viscosity of ink, and find that using butanone be solvent in experimentation, film is brighter, and ink colors are more bright-coloured.With the increase of solvent ratio in ink, the adhesive force of ink is then reduced, therefore the mass fraction of butanone is controlled 50 ~ 65% in the present invention, and the mass fraction of toluene is controlled in toluene 15 ~ 23%.
Ink coloring agent is divided into pigment and the big class of dyestuff two, compared with solvent dye, the alcohol resistance of the ink being made up of pigment is preferable, it is substantially insoluble in ethanol, but the viscosity using the made ink of pigment is too big, and dispersibility is not so good as solvent dye, thus the present invention selects solvent dye as coloring agent.Because solvent dye is slightly soluble in ethanol, especially when its content in ink is more than 10%, alcohol resistance is gradually deteriorated；And when being less than 5%, the colourity of ink is again weaker, requirement is not reached, therefore the mass fraction of solvent dye is 5 ~ 10%.Under some specific environmental conditions, excellent ink is adhered to originally also the problem for coming off, and at this moment can increase some adhesion promoters, the adhesion performance for keeping ink film excellent.A small amount of paraffin is added to reduce the viscosity of ink, but the viscosity of High-adhesion ink is much bigger compared with the viscosity of alcohol resistance ink, therefore the mass fraction of paraffin of the present invention is controlled 0.2 ~ 0.5%.
Plasticizer is a kind of high boiling point, low-volatile fixation or liquid compound, is mainly used to increase the plasticity of polymer substance.Plasticizer is little due to molecular weight, when mixing with the macromolecular compound such as resin, can penetrate between macromole long-chain, play a part of similar lubrication, make molecular resin long-chain potential motion freer, so that polymer becomes soft and high resilience, increase the pliability of ink.Little additionally, due to molecular weight, volume less, can be enriched between the chain link of macromole, increase its spacing, and the captivation for making interchain is reduced, and reduce the trend that embrittlement is wrecked, and adhesive force is effectively increased to a certain extent.From dibutyl phthalate as plasticizer, it can play iris action to the present invention to the main side chain in rosin resin or chlorinated polypropylene molecule, the active force between polymer molecule be reduced, so as to strengthen adhesive force.When consumption is below 2%, adhesive force increases with the increase of consumption；During more than 2%, the adhesive force of ink increases less or even without growth, and quick-drying performance is reduced, and viscosity increase, film performance is reduced.Therefore, the mass fraction of dibutyl phthalate of the present invention is controlled 1 ~ 2%.Due to predicting the material that code-spraying printing ink is used, and the adhesive force of ink has substantial connection with ground, falls off to prevent script from adhering to excellent ink, the adhesion performance that can increase some adhesion promoters to keep ink film excellent.During due to addition more than 2%, ink occurs cotton-shaped liquid, therefore the mass fraction of adhesion promoter of the present invention is maintained at 1 ~ 2%.
Preferably, the butanone and the mass ratio of the toluene are 5:2.It is in mixed solvent, although butanone plus membership reduction ink adhesive force but for the more single toluene solvant of the depreciation and few.Now, what both ratios more should be considered is the impact to ink viscosity.For chlorinated polypropylene, butanone is good solvent, and the dissolubility in toluene is then slightly worse；And for rosin resin, toluene is good solvent, the dissolubility in butanone is then slightly worse.Jing experiments find, when butanone and toluene ratio are up to 5:When 2, the chlorinated polypropylene and rosin resin in hybrid resin preferably can dissolve wherein, so that viscosity is reduced.
To realize preferable combination property, it is preferable that be obtained by the raw material of following mass fraction：Chlorinated polypropylene 5%, rosin resin 5%, solvent dye 8%, dibutyl phthalate 2%, adhesion promoter 1.5%, paraffin 0.3%, balance of butanone and toluene.The adhesive force of prepared ink is up to 0.28N/mm2。
Further, the chlorinated polypropylene and the mass ratio of the rosin resin are 1:1.It is found through experiments, with the increase of rosin resin, ink adhesion and viscosity are in increase trend, and when a small amount of rosin resin is added, ink attachment value added is not obvious, illustrate that rosin resin need to reach a certain amount of can reach potentiation to ink adhesion.When two resinoid ratios account for 50% in ink, the adhesive force of ink reaches new peak, and ink viscosity is suitable.
Preferably, the adhesion promoter is 6018.6018 with ink in hybrid resin and mixed solvent match.
Preferably, the solvent dye is SLB-34..
Above content is to combine the further description that specific preferred implementation is made to the present invention, it is impossible to which the specific embodiment for assert the present invention is confined to these explanations.For general technical staff of the technical field of the invention, the other embodiment drawn under without departing from technical scheme should be included in protection scope of the present invention.
Claims (6)
1. a kind of high adhesion force code-spraying printing ink, it is characterised in that：It is obtained by the raw material of following mass fraction：Chlorinated polypropylene 4 ~ 8%, rosin resin 4 ~ 6%, butanone 50 ~ 65%, toluene 15 ~ 23%, solvent dye 5 ~ 10%, dibutyl phthalate 1 ~ 2%, adhesion promoter 1 ~ 2%, paraffin 0.2 ~ 0.5%.
2. a kind of high adhesion force code-spraying printing ink according to claim 1, it is characterised in that：The butanone is 5 with the mass ratio of the toluene:2.
3. a kind of high adhesion force code-spraying printing ink according to claim 1, it is characterised in that：It is obtained by the raw material of following mass fraction：Chlorinated polypropylene 5%, rosin resin 5%, solvent dye 8%, dibutyl phthalate 2%, adhesion promoter 1.5%, paraffin 0.3%, balance of butanone and toluene.
4. a kind of high adhesion force code-spraying printing ink according to claim 1, it is characterised in that：The chlorinated polypropylene is 1 with the mass ratio of the rosin resin:1.
5. the environmentally friendly code-spraying printing ink according to any one in claim 1 ~ 5, it is characterised in that：The adhesion promoter is 6018.
6. the environmentally friendly code-spraying printing ink according to any one in claim 1 ~ 5, it is characterised in that：The solvent dye is SLB-34.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766415.4A CN106675201A (en) | 2015-11-11 | 2015-11-11 | High-adhesion code printing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766415.4A CN106675201A (en) | 2015-11-11 | 2015-11-11 | High-adhesion code printing ink |
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| Publication Number | Publication Date |
|---|---|
| CN106675201A true CN106675201A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766415.4A Pending CN106675201A (en) | 2015-11-11 | 2015-11-11 | High-adhesion code printing ink |
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| CN (1) | CN106675201A (en) |
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