CN108485358B - Ionic liquid modified bar code carbon ribbon back coating paint and preparation method thereof - Google Patents
Ionic liquid modified bar code carbon ribbon back coating paint and preparation method thereof Download PDFInfo
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- CN108485358B CN108485358B CN201810674167.4A CN201810674167A CN108485358B CN 108485358 B CN108485358 B CN 108485358B CN 201810674167 A CN201810674167 A CN 201810674167A CN 108485358 B CN108485358 B CN 108485358B
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/423—Intermediate, backcoat, or covering layers characterised by non-macromolecular compounds, e.g. waxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
- B41M5/443—Silicon-containing polymers, e.g. silicones, siloxanes
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/40—Cover layers; Layers separated from substrate by imaging layer; Protective layers; Layers applied before imaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
An ionic liquid modified bar code carbon ribbon back coating paint is prepared from the following raw materials in parts by weight: 10-50 parts of acrylate monomer, 0.5-2 parts of silane coupling agent monomer, 0.5-3 parts of double-bond-containing ionic liquid, 15-30 parts of organic silicon, 13-73.5 parts of organic solvent and 0.5-2 parts of catalyst. According to the ionic liquid modified bar code carbon ribbon back coating paint and the preparation process thereof, the ionic liquid containing double bonds is introduced into the polyacrylate back gluing high molecular chain in a block polymerization mode, so that the low-resistivity high molecular back coating paint is prepared for coating the bar code carbon ribbon, static electricity generated and accumulated when the carbon ribbon is used is effectively reduced, and the printing use quality of the back coating is ensured.
Description
Technical Field
The invention belongs to the technical field of thermal transfer printing, particularly relates to a bar code carbon ribbon antistatic back coating paint and a preparation process thereof, and aims to provide a high-molecular antistatic back coating paint which is stable in performance and does not contain conductive particles.
Background
A flat-pressing bar code carbon ribbon or a side-pressing suspension bar code carbon ribbon with a base made of 4.5 mu m PET or other film materials is generally required to be coated with a smooth antistatic coating on the non-ink layer side to prevent the carbon ribbon from rolling and adhering, quickly printing to generate accumulated static electricity, printing to burn through and the like, and is called as a back coating.
In the processes of rolling, unrolling, slitting and printing of the carbon ribbon, static electricity is generated and accumulated on one surface of the non-ink layer due to friction, and the product quality and the printing quality are affected. Particularly, in the printing process, the printing head coated with the silica gel rubs with one side of the back coating layer at a high speed, and the generation amount and the accumulation amount of static electricity in a short time are more. To eliminate the back coat static, various antistatic agents have been tried to be added.
The surfactant antistatic agent is usually added into the back coating paint in an internal mixing mode, and then is dried and attached to the belt base together with the back coating, and the addition amount is 0.3-3% of the content of the back coating paint. The antistatic agent has good compatibility with back coating, is convenient to add and use, and does not influence the smoothness and transparency of a coating film. However, surfactant-type materials also have certain disadvantages: firstly, the surfactant can slowly migrate to the surface of the back coating layer to be contacted with the ink layer in the storage process, so that components in the ink layer easily pollute the back coating surface and even cause adhesion, and the product is scrapped in the storage process; secondly, the surfactant substances have poor thermal stability, and after the surfactant substances are doped, the smoothness and stability of the back coating are poor under the high-temperature and high-pressure printing conditions, so that the printing friction is large, and the printing quality is poor.
The nano conductive powder, especially the carbon nano tube anti-conductive agent is the commonly used anti-conductive agent for the carbon ribbon back coating in recent years. The carbon nanotube material has extremely small particle size, stable performance and excellent heat resistance and conductivity, and can theoretically even play a role in strengthening the strength of the back coating, improving the uniformity of a coating film and the like after being doped, the doping amount is only 0.3-0.5 percent of the solid weight of the back coating adhesive, and other properties of the back coating are hardly damaged. However, the carbon nanotubes are easy to agglomerate in a back coating system due to small particle size, and the agglomerated carbon nanotubes are extremely difficult to disperse, especially when being compatible with high-molecular back coating materials, in order to ensure that long chains of the high-molecular coating material are not broken, high-speed shearing and stirring cannot be carried out together, the batching process is influenced by the polarity, temperature, humidity, dust in the air and the like of the dispersion system, and the product quality control difficulty is high; after the liquid is prepared, as the concentration of non-volatile matters in the back coating is as high as 6-15%, the viscosity of the system is low, and the carbon nano tube is easy to agglomerate and settle, the coating needs to be prepared at present and is difficult to store for a long time; finally, the carbon nanotubes adhered to the back of the ribbon inevitably fall off and adhere to the printer probe under high-speed printing conditions, seriously impairing the insulation of the print head.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ionic liquid modified bar code carbon ribbon back coating paint and a preparation process thereof, wherein an ionic liquid containing double bonds is introduced into a polyacrylate back gluing high molecular chain in a block polymerization mode to prepare a low-resistivity high molecular back coating paint for coating a bar code carbon ribbon, so that static electricity generated and accumulated when the carbon ribbon is used is effectively reduced, and the printing use quality of a back coating is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows: an ionic liquid modified bar code carbon ribbon back coating paint is prepared from the following raw materials in parts by weight: 10-50 parts of acrylate monomer, 0.5-2 parts of silane coupling agent monomer, 0.5-3 parts of double-bond-containing ionic liquid, 15-30 parts of organic silicon, 13-73.5 parts of organic solvent and 0.5-2 parts of catalyst;
the double-bond-containing ionic liquid is at least one of acetate of 1-allyl-3-methylimidazole, propionate of 1-allyl-3-methylimidazole, benzoate of 1-allyl-3-methylimidazole or lactate of 1-allyl-3-methylimidazole;
the organic solvent is prepared from butyl acetate and butanone according to the weight ratio of (4-9): (1-6) in a weight ratio.
Preferably, the acrylate monomer is composed of the following components in percentage by weight: 30-40% of cyclohexyl methacrylate, 40-55% of methyl methacrylate, 5-10% of styrene and 10-15% of isobornyl methacrylate.
Preferably, the silane coupling agent monomer is any one of methacryloxypropyltrimethoxysilane, methacryloxypropyltriethoxysilane and propenyl-triethoxysilane.
Preferably, the organosilicon is dihydroxy polymeric siloxane with hydroxyl content of 1-3%.
Preferably, the catalyst is AIBN.
A preparation method of ionic liquid modified bar code carbon ribbon back coating paint comprises the following steps:
step one, adding 0.5-2 parts by weight of silane coupling agent monomer, 15-30 parts by weight of organic silicon and 13-30 parts by weight of organic solvent into a double-layer reaction kettle, controlling the temperature in the reaction kettle to rise to 80-90 ℃ under the stirring condition, carrying out reflux reaction for 1-3h at the temperature, and then controlling the temperature in the reaction kettle to fall to 70-80 ℃;
step two, taking 10-50 parts of acrylate monomer and 0.5-3 parts of double-bond-containing ionic liquid according to parts by weight, uniformly mixing, adding 0.5-2 parts of catalyst and 0-43.5 parts of organic solvent, and fully and uniformly mixing to obtain a mixed additive for later use;
and step three, dropwise adding the mixed additive prepared in the step two into the reaction kettle in the step one within 3-5h in a dropwise manner, and after dropwise adding is completed, controlling the temperature in the reaction kettle to be maintained at 70-80 ℃ to react for 4-6h until a viscous colloidal substance with the solid content of 40-60% is obtained, namely the finished back coating paint.
A method for using a bar code carbon ribbon back coating paint comprises the following steps: and adding a diluting solvent with the mass being 3-5 times of that of the back coating into the back coating paint, fully stirring to prepare back coating feed liquid, then coating the back coating feed liquid on the back of the bar code carbon ribbon, and airing and curing at room temperature to finish the production of the back coating of the bar code carbon ribbon.
Has the advantages that:
1. in the preparation process of the bar code carbon ribbon back coating paint, the antistatic agent ionic liquid is introduced in a block polymerization mode, so that the good conductivity and heat resistance of the ionic liquid and the stability of a polymer generated by block polymerization are scientifically and reasonably utilized. The problems that the heat resistance and the stability of the back coating are poor due to the fact that the surfactant antistatic agent is blended and doped, the isolation effect of the back coating is poor due to the fact that the doped surfactant is easy to migrate slowly and the like are solved.
2. Compared with the back coating doped with the conductive carbon nanotube conductive agent, the antistatic back coating prepared by the invention has the advantages that the preparation process only needs to dilute the polymer mother solution at normal temperature, the steps are simple, the operation is convenient, the batching time is shortened, batching equipment and labor input are saved, and the method is quicker and saves the cost. Meanwhile, in the printing process, the phenomenon that conductive particles fall off cannot occur in the back coating, so that the cleanliness and the insulativity of the printing head can be better kept, and the service life of the printing head is prolonged.
3. The antistatic back coating prepared by the invention has simpler components, which means that the coating film can be more uniform; after solidification, the pressure and the heat transmitted by the printing head can be kept consistent under the high-speed printing condition of the carbon ribbon, and the consistency and the stability of the printing effect are ensured.
Detailed Description
The technical solution of the present invention will be further illustrated and described in detail with reference to the following specific examples. However, the protection of the present invention is not limited thereto, and all similar reactions based on the above contents and ideas are included in the protection scope of the present invention.
An ionic liquid modified bar code carbon ribbon back coating paint is prepared from the following raw materials in parts by weight: 10-50 parts of acrylate monomer, 0.5-2 parts of silane coupling agent monomer, 0.5-3 parts of double-bond-containing ionic liquid, 15-30 parts of organic silicon, 13-73.5 parts of organic solvent and 0.5-2 parts of catalyst;
the double-bond-containing ionic liquid is at least one of acetate of 1-allyl-3-methylimidazole, propionate of 1-allyl-3-methylimidazole, benzoate of 1-allyl-3-methylimidazole or lactate of 1-allyl-3-methylimidazole;
the organic solvent is prepared from butyl acetate and butanone according to the weight ratio of (4-9): (1-6) in a weight ratio.
Preferably, the acrylate monomer is composed of the following components in percentage by weight: 30-40% of cyclohexyl methacrylate, 40-55% of methyl methacrylate, 5-10% of styrene and 10-15% of isobornyl methacrylate.
Preferably, the silane coupling agent monomer is any one of methacryloxypropyltrimethoxysilane, methacryloxypropyltriethoxysilane and propenyl-triethoxysilane.
Preferably, the organosilicon is dihydroxy polymeric siloxane with hydroxyl content of 1-3%.
Preferably, the catalyst is AIBN.
A preparation method of ionic liquid modified bar code carbon ribbon back coating paint comprises the following steps:
step one, adding 0.5-2 parts by weight of silane coupling agent monomer, 15-30 parts by weight of organic silicon and 13-30 parts by weight of organic solvent into a double-layer reaction kettle, controlling the temperature in the reaction kettle to rise to 80-90 ℃ under the stirring condition, carrying out reflux reaction for 1-3h at the temperature, and then controlling the temperature in the reaction kettle to fall to 70-80 ℃;
step two, taking 10-50 parts of acrylate monomer and 0.5-3 parts of double-bond-containing ionic liquid according to parts by weight, uniformly mixing, adding 0.5-2 parts of catalyst AIBN and 0-43.5 parts of organic solvent, and fully and uniformly mixing to obtain a mixed additive for later use;
and step three, keeping the temperature of the reaction kettle at 70-80 ℃ to start dripping, dripping the mixed additive prepared in the step two into the reaction kettle in the step one within 3-5h in a dripping mode, controlling the temperature in the reaction kettle to be maintained at 70-80 ℃ to react for 4-6h after finishing dripping, and discharging until yellowish, transparent or semitransparent viscous colloidal substances with the solid content of 40-60% are obtained, so that the finished product back coating paint is obtained.
A method for using a bar code carbon ribbon back coating paint comprises the following steps: and adding a diluting solvent which is 3-5 times of the mass of the back coating paint, wherein the diluting solvent can be a reaction system solvent or other ester, ether and ketone solvents for dilution, fully stirring to prepare a back coating material liquid, then coating the back coating material liquid on the back of the bar code carbon ribbon, and airing and curing at room temperature to finish the production of the back coating of the bar code carbon ribbon.
Example 1:
step one, taking 200 g of propenyl triethoxysilane, 6 kg of dihydroxy polymeric siloxane with the hydroxyl content of 1%, 20 kg of butyl acetate (w): butanone (w) =3: 1 mixed solvent, uniformly mixing, heating to 90 ℃, preserving heat for 1 h, and cooling to 80 ℃;
step two, 400g of styrene, 1.2 kg of cyclohexyl methacrylate, 2.2 kg of methyl methacrylate, 400g of isobornyl methacrylate, 200 g of benzoate of 1-allyl-3-methylimidazole, 9.4 kg of mixed solvent (the proportion is the same as above) and 200 g of AIBN are uniformly mixed, 4 kg of the mixture is directly added into the reaction kettle in the step one, the rest materials are dropwise added into the reaction kettle within 3 hours and continuously reacted for 4 hours, and the finished product is obtained after the solid content is higher than 95 percent of the theoretical value.
Example 2:
step one, taking 200 g of propenyl triethoxysilane, 5kg of dihydroxy polymeric siloxane with the hydroxyl content of 1%, 5kg of butyl acetate (w): butanone (w) = 1:1 mixed solvent, uniformly mixing, heating to 90 ℃, preserving heat for 1 h, and cooling to 80 ℃;
step two, 400g of styrene, 2.8 kg of cyclohexyl methacrylate, 4.0 kg of methyl methacrylate, 800g of isobornyl methacrylate, 400g of acetate of 1-allyl-3-methylimidazole, 1.2 kg of mixed solvent (the proportion is the same as above) and 200 g of AIBN are uniformly mixed, 6 kg of the mixture is directly added into the reaction kettle in the step one, the rest material is dropwise added into the reaction kettle within 3.5 h, the reaction is continued for 5h, and the finished product is obtained after the solid content is higher than 95 percent of the theoretical value.
Example 3:
step one, taking 200 g of propenyl triethoxysilane, 3kg of dihydroxy polymeric siloxane with the hydroxyl content of 1%, 1.0 kg of butyl acetate (w): butanone (w) = 2:3 mixed solvent, uniformly mixing, heating to 90 ℃, preserving heat for 1 h, and cooling to 80 ℃;
step two, after 250 g of styrene, 2.0 kg of cyclohexyl methacrylate, 2.0 kg of methyl methacrylate, 750g of isobornyl methacrylate, 300g of lactate of 1-allyl-3-methylimidazole, 300g of mixed solvent (the proportion is the same as above) and 200 g of AIBN are uniformly mixed, 5kg of the mixture is directly added into the reaction kettle in the step one, the rest material is dropwise added into the reaction kettle within 4 hours, the reaction is continued for 6 hours, and the finished product is obtained after the solid content is higher than 95 percent of the theoretical value.
Example 4:
step one, taking 100g of methacryloxypropyl trimethoxysilane, 3kg of dihydroxy polymeric siloxane with the hydroxyl content of 3 percent, 1.3 kg of butyl acetate (w): butanone (w) = 2:3 mixed solvent, uniformly mixing, heating to 90 ℃, preserving heat for 1 h, and cooling to 70 ℃;
step two, uniformly mixing 100g of styrene, 400g of cyclohexyl methacrylate, 400g of methyl methacrylate, 100g of isobornyl methacrylate and 100g of 1-allyl-3-methylimidazole propionate, adding 50g of catalyst AIBN, and fully and uniformly mixing to obtain a mixed additive for later use;
and step three, keeping the temperature of the reaction kettle at 80 ℃ and starting dropwise adding, dropwise adding the mixed additive prepared in the step two into the reaction kettle in the step one within 3h, controlling the temperature in the reaction kettle to be maintained at 70 ℃ after dropwise adding is finished, reacting for 6h until yellowish, transparent or semitransparent viscous colloidal substances with the solid content of 60% are obtained, and discharging to obtain the finished back coating paint.
Example 5:
taking 50g of methacryloxypropyltriethoxysilane, 1.5kg of a dihydroxy polymeric siloxane having a hydroxyl content of 2%, 3kg of butyl acetate (w): butanone (w) = 9: 1 mixed solvent, uniformly mixing, heating to 80 ℃, preserving heat for 3 hours, and cooling to 80 ℃;
step two, after mixing 250 g of styrene, 1.75kg of cyclohexyl methacrylate, 2.25 kg of methyl methacrylate, 750g of isobornyl methacrylate and 50g of benzoate of 1-allyl-3-methylimidazole uniformly, 100g of catalyst AIBN, 3kg of butyl acetate (w): butanone (w) = 9: 1 mixed solvent is fully and uniformly mixed to obtain a mixed additive for standby;
and step three, keeping the temperature of the reaction kettle at 70 ℃ and starting dropwise adding, dropwise adding the mixed additive prepared in the step two into the reaction kettle in the step one within 5h, controlling the temperature in the reaction kettle to be maintained at 80 ℃ after dropwise adding is finished, reacting for 4h until yellowish, transparent or semitransparent viscous colloidal substances with the solid content of 40% are obtained, and discharging to obtain the finished back coating paint.
Example 6:
step one, taking 150g of methacryloxypropyltriethoxysilane, 2 kg of dihydroxy polymeric siloxane with a hydroxyl content of 1%, 2.0 kg of butyl acetate (w): butanone (w) =3:2 mixed solvent, uniformly mixing, heating to 85 ℃, preserving heat for 2 hours, and cooling to 75 ℃;
step two, 150g of styrene, 900g of cyclohexyl methacrylate, 1650g of methyl methacrylate, 300g of isobornyl methacrylate and 300g of acetate of 1-allyl-3-methylimidazole were mixed uniformly, and 200 g of AIBN catalyst, 4.35 kg of butyl acetate (w): butanone (w) =3:2 mixed solvent is fully and uniformly mixed to obtain a mixed additive for standby;
and step three, keeping the temperature of the reaction kettle at 75 ℃ and starting dropwise adding, dropwise adding the mixed additive prepared in the step two into the reaction kettle in the step one within 4h, controlling the temperature in the reaction kettle to be maintained at 75 ℃ after dropwise adding is finished, reacting for 5h until yellowish transparent or semitransparent viscous colloidal substances with the solid content of 50% are obtained, and discharging to obtain the finished product back coating paint.
Claims (4)
1. The ionic liquid modified bar code carbon ribbon back coating paint is characterized by being prepared from the following raw materials in parts by weight: 10-50 parts of acrylate monomer, 0.5-2 parts of silane coupling agent monomer, 0.5-3 parts of double-bond-containing ionic liquid, 15-30 parts of organic silicon, 13-73.5 parts of organic solvent and 0.5-2 parts of catalyst;
the acrylate monomer comprises the following components in percentage by weight: 5-10% of styrene, 30-40% of cyclohexyl methacrylate, 40-55% of methyl methacrylate and 10-15% of isobornyl methacrylate;
the double-bond-containing ionic liquid is at least one of acetate of 1-allyl-3-methylimidazole, propionate of 1-allyl-3-methylimidazole, benzoate of 1-allyl-3-methylimidazole or lactate of 1-allyl-3-methylimidazole;
the organic silicon is dihydroxy polymeric siloxane with the hydroxyl content of 1-3 percent;
the organic solvent is prepared from butyl acetate and butanone according to the weight ratio of (4-9): (1-6) mixing the components in a weight ratio;
a preparation method of ionic liquid modified bar code carbon ribbon back coating paint comprises the following steps:
step one, adding 0.5-2 parts by weight of silane coupling agent monomer, 15-30 parts by weight of organic silicon and 13-30 parts by weight of organic solvent into a double-layer reaction kettle, controlling the temperature in the reaction kettle to rise to 80-90 ℃ under the stirring condition, carrying out reflux reaction for 1-3h at the temperature, and then controlling the temperature in the reaction kettle to fall to 70-80 ℃;
step two, taking 10-50 parts of acrylate monomer and 0.5-3 parts of double-bond-containing ionic liquid according to parts by weight, uniformly mixing, adding 0.5-2 parts of catalyst and 0-43.5 parts of organic solvent, and fully and uniformly mixing to obtain a mixed additive for later use;
and step three, dropwise adding the mixed additive prepared in the step two into the reaction kettle in the step one within 3-5h in a dropwise manner, and after dropwise adding is completed, controlling the temperature in the reaction kettle to be maintained at 70-80 ℃ to react for 4-6h until a viscous colloidal substance with the solid content of 40-60% is obtained, namely the finished back coating paint.
2. The ionic liquid modified barcode carbon tape back coating of claim 1, wherein the silane coupling agent monomer is any one of methacryloxypropyltrimethoxysilane, methacryloxypropyltriethoxysilane, and propenyl triethoxysilane.
3. The ionic liquid modified barcode carbon tape back coating paint of claim 1, wherein: the catalyst is AIBN.
4. The use method of the ionic liquid modified barcode carbon tape back coating paint as claimed in claim 1, wherein the ionic liquid modified barcode carbon tape back coating paint comprises the following steps: and adding a diluting solvent with the mass being 3-5 times of that of the back coating into the back coating paint, fully stirring to prepare back coating feed liquid, then coating the back coating feed liquid on the back of the bar code carbon ribbon, and airing and curing at room temperature to finish the production of the back coating of the bar code carbon ribbon.
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| CN104812866A (en) * | 2012-12-27 | 2015-07-29 | 日东电工株式会社 | Antistatic layer, antistatic adhesive sheet, and optical film |
| CN107903654A (en) * | 2017-11-22 | 2018-04-13 | 昆山创匠新材料科技有限公司 | A kind of resin combination and preparation method thereof |
| CN107903364A (en) * | 2017-11-23 | 2018-04-13 | 河南省科学院化学研究所有限公司 | Barcode ribbon back coating resin and preparation method thereof and barcode ribbon back coating liquid and its application |
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| JP4814000B2 (en) * | 2006-07-26 | 2011-11-09 | リンテック株式会社 | Optical functional film bonding adhesive, optical functional film and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011025847A2 (en) * | 2009-08-28 | 2011-03-03 | 3M Innovative Properties Company | Compositions and articles comprising polymerizable ionic liquid mixture, and methods of curing |
| CN104812866A (en) * | 2012-12-27 | 2015-07-29 | 日东电工株式会社 | Antistatic layer, antistatic adhesive sheet, and optical film |
| CN107903654A (en) * | 2017-11-22 | 2018-04-13 | 昆山创匠新材料科技有限公司 | A kind of resin combination and preparation method thereof |
| CN107903364A (en) * | 2017-11-23 | 2018-04-13 | 河南省科学院化学研究所有限公司 | Barcode ribbon back coating resin and preparation method thereof and barcode ribbon back coating liquid and its application |
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