CN103342773A - Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof - Google Patents
Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a crosslinked vinyl acetate-acrylic emulsion for a digital color inkjet ink-absorbing coating and a preparation method thereof. The crosslinked vinyl acetate-acrylic emulsion is composed of the following components in parts by weight: 15-28 parts of vinyl acetate, 3.1-12.4 parts of acrylic monomer, 0.9-9.3 parts of methacrylic monomer, 0.03-1.5 parts of crosslinking monomer, 0.3-1.5 parts of emulsifier, 1.5-3 parts of protective adhesive, 0.03-0.3 part of initiator, 0.03-0.3 part of pH regulator and the balance of water, totaling 100 parts. Compared with the prior art, the vinyl acetate-acrylic emulsion has greatly higher stability; and when the vinyl acetate-acrylic emulsion independently forms a film, the vinyl acetate-acrylic emulsion film has the advantages of high transparency, high toughness, high shock resistance and excellent water resistance. The digital color inkjet ink-absorbing coating prepared by the vinyl acetate-acrylic emulsion has the advantages of excellent water resistance, bright printing color and no fading.
Description
Technical field
The present invention relates to the digital coating of printing and use the sizing agent field, be specifically related to a kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion and preparation method thereof.
Background technology
The color jet-ink digital printing paper is as the direct supporting body of color jet-ink ink, and the quality of its quality has decisive role to the quality of image quality, and the gordian technique of decision inkjet paper amount is the ink-absorbed coated layer of paper.The ink-absorbed coated layer of color spray paper mainly comprises compositions such as pigment, sizing agent, laking agent, whitening agent, wherein, is that pigment and other components is bonding mutually as the effect of the sizing agent of external phase, and it is evenly dispersed on the paper.Qualified sizing agent can be under the prerequisite that does not influence color representation, improve the stability of vanish system, give color spray paper excellent water tolerance and wet fastness, in the prior art, the sizing agent that is used for the digital colorful spray paper and coating uses polyvinyl alcohol (PVA) mostly, yet, use polyvinyl alcohol as sizing agent separately, the viscosity of coating system is wayward, is unfavorable for the coating processing of color spray paper, and the wet fastness of coating is not good yet.In the use vinyl acetate-ethylene copolymer that also has, aqueous polyurethane, benzene emulsion, the pure-acrylic emulsion one or more are as sizing agent, but its cost also improves a lot.
Minority uses vinylformic acid as function monomer; polyvinyl alcohol 1788 is as protection glue; but because acrylic acid existence; crosslinking reaction easily takes place between the high-molecular polyvinyl alcohol chain; stability of emulsion is descended; system viscosity increases gradually, causes the viscosity of system wayward, is unfavorable for using of later stage emulsion on the contrary.
Summary of the invention
Goal of the invention: the objective of the invention is in order to remedy the deficiencies in the prior art, a kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion is provided, and another object of the present invention has provided the preparation method of digital colorful spray ink-absorbed coated layer with cross linking type methyl acrylate and vinyl acetate emulsion.
Technical scheme: a kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion; each component by the following parts by weight that account for the emulsion total amount is formed: 15～28 parts of vinyl acetates; 3.1～12.4 parts of acrylic monomers; 0.9～9.3 part of metha crylic monomer, 0.03～1.5 part of cross-linking monomer, 0.3～1.5 part of emulsifying agent; 1.5～3 parts in protection glue; 0.03～0.3 part of initiator, 0.03～0.3 part of PH conditioning agent adds water to 100 parts.
As preferably, acrylic monomer is one or more in vinylformic acid, methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, Octyl acrylate, the Isooctyl acrylate monomer.
As preferably, the metha crylic monomer is one or more mixing in methacrylic acid, methyl methacrylate, Jia Jibingxisuanyizhi, the n-BMA.
As preferably, cross-linking monomer is one or more mixing in N hydroxymethyl acrylamide, N-methoxymethyl propenamide, N-isopropyl oxygen Methacrylamide, N-butoxymethyl acrylamide, N-isobutyl oxygen Methacrylamide, the hot oxygen Methacrylamide of N-, N-carboxylic methoxymethyl propenamide, vinylformic acid-2-hydroxyl ethyl ester, vinylformic acid-2-hydroxypropyl acrylate, ethyl acrylate, methacrylic acid-2-ethylhexyl, 2-hydroxyethyl methacrylate, the methacrylic acid-2-hydroxypropyl acrylate.
As preferably, emulsifying agent is the mixture of anionic emulsifier and nonionic emulsifier; Anionic emulsifier is one or more in sodium lauryl sulphate, sodium laurylsulfonate, the Sodium dodecylbenzene sulfonate; Nonionic emulsifier is one or more among OP-10, NP-10, TX-10, the OP-20.
As preferably, protection glue is one or more mixtures in Natvosol, polyvinyl alcohol 1788, the polyvinyl alcohol 1799.
As preferably, initiator is Potassium Persulphate or ammonium persulphate.
As preferably, the PH conditioning agent is Sodium phosphate dibasic or sodium bicarbonate.
A kind of digital colorful spray ink-absorbed coated layer comprises the steps: with the preparation method of cross linking type methyl acrylate and vinyl acetate emulsion
1) preparation of monomer mixed solution: vinyl acetate, acrylic monomer, metha crylic monomer, cross-linking monomer proportionally with after the water of 80% weight fraction mixes are obtained monomer mixed solution, standby;
2) preparation of pre-emulsion: get 10～50% of the monomer mixed solution weight that obtains in the step 1) and mix with emulsifying agent, conditioning agent and protection glue, under 500～1000rpm rotating speed, make pre-emulsion;
3) initiator is used remaining water dissolution, is formed initiator solution, then 20～50% of initiator solution weight is joined step 2) in the pre-emulsion that obtains;
4) pre-emulsion with step 3) is heated to 70～75 ℃, begins polymerization under 100～300rpm stirs;
5) pre-emulsion in step 4) has blue light to produce, when reflux condensing tube did not obviously reflux, beginning slowly dripped the monomer mixed solution of remaining 40-90%, dropwises in 2～5 hours, and, add remaining initiator solution therebetween each half an hour, keeping system temperature is 70～75 ℃, after all monomer mixed solution and whole initiator solution add, be incubated 30 minutes down in 70～75 ℃, then, be warming up to 80～85 ℃ of insulations 30 minutes, form emulsion;
6) emulsion that obtains in the step 5) is cooled to 50 ℃ after, filter with 200 order filter clothes, namely obtain cross linking type methyl acrylate and vinyl acetate emulsion.
Beneficial effect: the present invention compares with prior art, during the independent film forming of this acrylate and vinyl acetate emulsion, and film transparency height, flexible, shock resistance is strong, and the water resistance excellence.Adopt the digital colorful spray ink-absorbed coated layer of this acrylate and vinyl acetate emulsion preparation to have excellent in water resistance, and print bright in lusterly, meet water and do not fade.
Embodiment
In the present invention, acrylic monomer is one or more in vinylformic acid, methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, Octyl acrylate, the Isooctyl acrylate monomer.
The metha crylic monomer is one or more mixing in methacrylic acid, methyl methacrylate, Jia Jibingxisuanyizhi, the n-BMA.
Cross-linking monomer is one or more mixing in N hydroxymethyl acrylamide, N-methoxymethyl propenamide, N-isopropyl oxygen Methacrylamide, N-butoxymethyl acrylamide, N-isobutyl oxygen Methacrylamide, the hot oxygen Methacrylamide of N-, N-carboxylic methoxymethyl propenamide, vinylformic acid-2-hydroxyl ethyl ester, vinylformic acid-2-hydroxypropyl acrylate, ethyl acrylate, methacrylic acid-2-ethylhexyl, 2-hydroxyethyl methacrylate, the methacrylic acid-2-hydroxypropyl acrylate.
Emulsifying agent is the mixture of anionic emulsifier and nonionic emulsifier; Anionic emulsifier is one or more in sodium lauryl sulphate, sodium laurylsulfonate, the Sodium dodecylbenzene sulfonate; Nonionic emulsifier is one or more among OP-10, NP-10, TX-10, the OP-20.
Protection glue is one or more mixtures in Natvosol, polyvinyl alcohol 1788, the polyvinyl alcohol 1799.
Embodiment 1
A kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion is made up of each component of the following parts by weight that account for the emulsion total amount: 15 parts of vinyl acetates; 3.1 parts in vinylformic acid; 0.9 part of methacrylic acid; 0.03 part of N hydroxymethyl acrylamide, 0.3 part in sodium lauryl sulphate and OP-10 mixture; 17881.5 parts of polyvinyl alcohol; 0.03 part of ammonium persulphate; 0.03 part of Sodium phosphate dibasic adds 79.11 parts in water.
Above-mentioned digital colorful spray ink-absorbed coated layer comprises the steps: with the preparation method of cross linking type methyl acrylate and vinyl acetate emulsion
1) preparation of monomer mixed solution: with obtaining monomer mixed solution after vinyl acetate, vinylformic acid, methacrylic acid, the water mixing of N hydroxymethyl acrylamide according to aforementioned proportion and 80%, standby;
2) preparation of pre-emulsion: get 10% of the monomer mixed solution weight that obtains in the step 1) and mix with sodium lauryl sulphate and OP-10 mixture, Sodium phosphate dibasic and polyvinyl alcohol 1788, under the 500rpm rotating speed, make pre-emulsion;
3) with initiator with remaining 20% water dissolution, form initiator solution, then 20% of initiator solution weight is joined step 2) in the pre-emulsion that obtains;
4) pre-emulsion with step 3) is heated to 70 ℃, begins polymerization under 100rpm stirs;
5) pre-emulsion in step 4) has blue light to produce, when reflux condensing tube did not obviously reflux, beginning slowly dripped remaining 90% monomer mixed solution, dropwises in 2 hours, and, add remaining initiator solution therebetween each half an hour, keeping system temperature is 70 ℃, after all monomer mixed solution and whole initiator solution add, be incubated 30 minutes down in 70 ℃, then, be warming up to 80 ℃ of insulations 30 minutes, form emulsion;
6) emulsion that obtains in the step 5) is cooled to 50 ℃ after, filter with 200 order filter clothes, namely obtain cross linking type methyl acrylate and vinyl acetate emulsion.
The stability of emulsion that the present invention obtains improves a lot, during the independent film forming of this acrylate and vinyl acetate emulsion, film transparency height, flexible, shock resistance is strong, and the water resistance excellence, adopts the digital colorful spray ink-absorbed coated layer of this acrylate and vinyl acetate emulsion preparation to have excellent in water resistance, and print bright in luster, fugitive color not.
Embodiment 2:
A kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion, each component by the following parts by weight that account for the emulsion total amount is formed: 28 parts of vinyl acetates, 12.4 parts of methyl acrylates, 9.3 parts of methyl methacrylates, 1.5 parts of N-isopropyl oxygen Methacrylamides, 1.5 parts in sodium laurylsulfonate and NP-10 mixture, 3 parts of Natvosols, 0.3 part of Potassium Persulphate, 0.3 part of Sodium phosphate dibasic adds 43.7 parts in water.
Above-mentioned digital colorful spray ink-absorbed coated layer comprises the steps: with the preparation method of cross linking type methyl acrylate and vinyl acetate emulsion
1) preparation of monomer mixed solution: vinyl acetate, methyl acrylate, methyl methacrylate, N-isopropyl oxygen Methacrylamide proportionally with after the water of 80% weight fraction mixes are obtained monomer mixed solution, standby;
2) preparation of pre-emulsion: get 50% of the monomer mixed solution weight that obtains in the step 1) and mix with emulsifying agent, pH regulator agent and protection glue, under 500～1000rpm rotating speed, make pre-emulsion;
3) initiator is used remaining water dissolution, is formed initiator solution, then 50% of initiator solution weight is joined step 2) in the pre-emulsion that obtains;
4) pre-emulsion with step 3) is heated to 75 ℃, begins polymerization under 300rpm stirs;
5) pre-emulsion in step 4) has blue light to produce, when reflux condensing tube did not obviously reflux, beginning slowly dripped remaining 50% monomer mixed solution, dropwises in 5 hours, and, add remaining initiator solution therebetween each half an hour, keeping system temperature is 75 ℃, after all monomer mixed solution and whole initiator solution add, be incubated 30 minutes down in 75 ℃, then, be warming up to 85 ℃ of insulations 30 minutes, form emulsion;
6) emulsion that obtains in the step 5) is cooled to 50 ℃ after, filter with 200 order filter clothes, namely obtain cross linking type methyl acrylate and vinyl acetate emulsion.
The stability of emulsion that the present invention obtains improves a lot, during the independent film forming of this acrylate and vinyl acetate emulsion, film transparency height, flexible, shock resistance is strong, and the water resistance excellence, adopts the digital colorful spray ink-absorbed coated layer of this acrylate and vinyl acetate emulsion preparation to have excellent in water resistance, and print bright in luster, fugitive color not.
Embodiment 3:
A kind of digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion, each component by the following parts by weight that account for the emulsion total amount is formed: 20 parts of vinyl acetates, 10 parts of ethyl propenoates, 5 parts of Jia Jibingxisuanyizhis, 1 part of N-isopropyl oxygen Methacrylamide, 1 part in Sodium dodecylbenzene sulfonate and OP-20 mixture, 17992 parts of polyvinyl alcohol, 0.1 part of ammonium persulphate, 0.1 part of sodium bicarbonate adds moisture content.
A kind of above-mentioned digital colorful spray ink-absorbed coated layer comprises the steps: with the preparation method of cross linking type methyl acrylate and vinyl acetate emulsion
1) preparation of monomer mixed solution: vinyl acetate, ethyl propenoate, Jia Jibingxisuanyizhi, N-isopropyl oxygen Methacrylamide proportionally with after the water of 80% weight fraction mixes are obtained monomer mixed solution, standby;
2) preparation of pre-emulsion: get 30% of the monomer mixed solution weight that obtains in the step 1) and mix with Sodium dodecylbenzene sulfonate and OP-20 mixture, ammonium persulphate and polyvinyl alcohol 1799, under the 600rpm rotating speed, make pre-emulsion;
3) initiator is used remaining water dissolution, is formed initiator solution, then 30% of initiator solution weight is joined step 2) in the pre-emulsion that obtains;
4) pre-emulsion with step 3) is heated to 72 ℃, begins polymerization under 200rpm stirs;
5) pre-emulsion in step 4) has blue light to produce, when reflux condensing tube did not obviously reflux, beginning slowly dripped remaining 70% monomer mixed solution, dropwises in 3 hours, and, add remaining initiator solution therebetween each half an hour, keeping system temperature is 72 ℃, after all monomer mixed solution and whole initiator solution add, be incubated 30 minutes down in 72 ℃, then, be warming up to 82 ℃ of insulations 30 minutes, form emulsion;
6) emulsion that obtains in the step 5) is cooled to 50 ℃ after, filter with 200 order filter clothes, namely obtain cross linking type methyl acrylate and vinyl acetate emulsion.
Embodiment 4:
Embodiment 4 and embodiment 1 are roughly the same, difference be the Acrylic Acid Monomer among the embodiment 4 used be n-butyl acrylate.
Embodiment 5:
Embodiment 5 and embodiment 1 are roughly the same, and difference is that the cross-linking monomer among the embodiment 5 is the hot oxygen Methacrylamide of N-.
Embodiment 6:
Embodiment 6 and embodiment 1 are roughly the same, and difference is that the methacrylic acid monomer among the embodiment 6 is n-BMA.
For further proof beneficial effect of the present invention, following concrete experimental example is provided, specifically see Table 1, table 2:
The cross linking type methyl acrylate and vinyl acetate emulsion of getting among the embodiment 1 becomes digital colorful spray blotting coating by following prepared.
1) coating raw material and proportioning
Table 1 coating raw material and proportioning
2) preparation technology
Earlier with stirring evenly in water, whitening agent, the laking agent adding high-speed stirring still (disc type decollator), add silicon-dioxide, after high speed dispersion added after 30 minutes in proportion, add polyvinyl alcohol solution and cross linking type methyl acrylate and vinyl acetate emulsion, high speed dispersion 45 minutes is filtered, and it is stand-by to leave standstill froth breaking.
3) above-mentioned preparation digital colorful spray blotting coating, coat to do the Dampler Ace material surface that primary coat is handled with 60g standard lines rod, be placed on after the coating in the baking oven and under 105 ℃ of conditions, dried by the fire 5 minutes, cooling back use dyestuff printer is printed red, yellow, blue, black four look color lumps, test color density, water-resistant coating and image water tolerance respectively.Specific as follows:
Table 2 coating apparatus and test condition
Table 3 test result
Claims (9)
1. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion; it is characterized in that: each component by following parts by weight is formed: 15～28 parts of vinyl acetates; 3.1～12.4 parts of acrylic monomers; 0.9～9.3 part of metha crylic monomer, 0.03～1.5 part of cross-linking monomer, 0.3～1.5 part of emulsifying agent; 1.5～3 parts in protection glue; 0.03～0.3 part of initiator, 0.03～0.3 part of PH conditioning agent adds water to 100 parts of gross weights.
2. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: acrylic monomer is one or more in vinylformic acid, methyl acrylate, ethyl propenoate, n-butyl acrylate, isobutyl acrylate, Octyl acrylate, the Isooctyl acrylate monomer.
3. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: the metha crylic monomer is one or more mixing in methacrylic acid, methyl methacrylate, Jia Jibingxisuanyizhi, the n-BMA.
4. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: cross-linking monomer is N hydroxymethyl acrylamide, the N-methoxymethyl propenamide, N-isopropyl oxygen Methacrylamide, the N-butoxymethyl acrylamide, N-isobutyl oxygen Methacrylamide, the hot oxygen Methacrylamide of N-, N-carboxylic methoxymethyl propenamide, vinylformic acid-2-hydroxyl ethyl ester, vinylformic acid-2-hydroxypropyl acrylate, ethyl acrylate, methacrylic acid-2-ethylhexyl, 2-hydroxyethyl methacrylate, one or more mixing in methacrylic acid-2-hydroxypropyl acrylate.
5. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: emulsifying agent is the mixture of anionic emulsifier and nonionic emulsifier; Anionic emulsifier is one or more in sodium lauryl sulphate, sodium laurylsulfonate, the Sodium dodecylbenzene sulfonate; Nonionic emulsifier is one or more among OP-10, NP-10, TX-10, the OP-20.
6. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: protection glue is one or more mixtures in Natvosol, polyvinyl alcohol 1788, the polyvinyl alcohol 1799.
7. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: initiator is Potassium Persulphate or ammonium persulphate.
8. digital colorful spray ink-absorbed coated layer cross linking type methyl acrylate and vinyl acetate emulsion as claimed in claim 1, it is characterized in that: the PH conditioning agent is Sodium phosphate dibasic or sodium bicarbonate.
9. the preparation method of the described digital colorful spray ink-absorbed coated layer usefulness of claim 1 cross linking type methyl acrylate and vinyl acetate emulsion is characterized in that: comprise the steps:
1) preparation of monomer mixed solution: vinyl acetate, acrylic monomer, metha crylic monomer, cross-linking monomer proportionally with after the water of 80% weight fraction mixes are obtained monomer mixed solution, standby;
2) preparation of pre-emulsion: get 10～50% of the monomer mixed solution weight that obtains in the step 1) and mix with emulsifying agent, pH regulator agent and protection glue, under 500～1000rpm rotating speed, make pre-emulsion;
3) initiator is used remaining water dissolution, is formed initiator solution, then 20～50% of initiator solution weight is joined step 2) in the pre-emulsion that obtains;
4) pre-emulsion with step 3) is heated to 70～75 ℃, begins polymerization under 100～300rpm stirs;
5) pre-emulsion in step 4) has blue light to produce, when reflux condensing tube did not obviously reflux, beginning slowly dripped the monomer mixed solution of remaining 40-90%, dropwises in 2～5 hours, and, add remaining initiator solution therebetween each half an hour, keeping system temperature is 70～75 ℃, after all monomer mixed solution and whole initiator solution add, be incubated 30 minutes down in 70～75 ℃, then, be warming up to 80～85 ℃ of insulations 30 minutes, form emulsion;
6) emulsion that obtains in the step 5) is cooled to 50 ℃ after, filter with 200 order filter clothes, namely obtain cross linking type methyl acrylate and vinyl acetate emulsion.
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| CN105985497A (en) * | 2015-02-28 | 2016-10-05 | 上海东升新材料有限公司 | Acetic acrylic emulsion and preparing method thereof |
| CN104789063A (en) * | 2015-05-04 | 2015-07-22 | 江苏耐斯数码科技股份有限公司 | Method for preparing compatible ink-jet printing coating |
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| CN114015298A (en) * | 2021-12-16 | 2022-02-08 | 上海绘兰材料科技有限公司 | Water-resistant ink-absorbing coating material and preparation method and application thereof |
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