CN103895383A - Preparation method of medical high definition inkjet film coating liquid - Google Patents
Preparation method of medical high definition inkjet film coating liquid Download PDFInfo
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- CN103895383A CN103895383A CN201210577203.8A CN201210577203A CN103895383A CN 103895383 A CN103895383 A CN 103895383A CN 201210577203 A CN201210577203 A CN 201210577203A CN 103895383 A CN103895383 A CN 103895383A
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Abstract
The invention discloses a preparation method of a medical high definition inkjet film coating liquid. Water, citric acid or alpha hydroxy acid or tartaric acid, aluminum oxide, boric acid and isopropanol are proportionally added into a disperser to prepare a dispersion liquid; and then polyvinyl alcohol is added while stirring to prepare the coating liquid. The usage of citric acid, alpha hydroxy acid or tartaric acid to substitute volatile acetic acid for dispersing alumina powder can eliminate the acidic smell of product caused by using acetic acid, is more environment-friendly, and at the same time can maintain the performance of acetic acid to lower congealing point temperature in the coating liquid (reference patent of ink jet coating liquid with congealing point temperature with patent No. of 200510115050.5).
Description
Technical field
The invention belongs to ink jet recording medium technical field, be specifically related to a kind of medical high definition ink jet photographic film coating fluid preparation method.
Background technology
The digital medical image development trend that is inevitable.Compared with the image generating with analogue technique, digital technology image has significant superiority: the picture quality copying can not reduce; Memory time, no matter how long image all underwent no deterioration impaired; Can copy easily countless identical images and read for many people in different places simultaneously, cost, information transmission is quick.Digitized video, through different printing devices, directly, in the upper imaging of medium (film), does not need the method for washing processing all to can be described as dry-printed.The process complexity of tradition sensitization medical film washing processing, there is emission pollution problem in irrigating sleeve medicine.The volatilization pollution of overlapping medicine in flushing process also causes inconvenience to operator.Because the dry-printed output of ink-jet is quick, easy, the advantages such as non-environmental-pollution, have obtained develop rapidly in medical digitized video field over nearly 2 years.
Current medical high definition ink jet photographic film generally adopts the disclosed clearance type coating based on aluminium oxide of patent CN200510115050.5, this structure coating not only imaging clearly, color is true to nature, and the requirement that reaches conventional film waterproof antiwear, do not fade, but this technology adopts the pH value of the volatile acid control coating fluids such as acetic acid more and then controls cold point temperature, use the smell of volatile acid large, big for environment pollution, it is inappropriate using in the high place of the such environmental requirement of hospital.
Summary of the invention
The above-mentioned defect existing in order to overcome prior art field, the object of the invention is to, a kind of medical high definition ink jet photographic film coating fluid preparation method is provided, solves product acidic smell large, the big for environment pollution problem of prior art because using the volatile acid dispersed aluminas such as acetic acid to cause.
Medical high definition ink jet photographic film coating fluid preparation method provided by the invention, comprises the steps:
(1) under room temperature, by proportion by weight, 270-290 parts of water, 10-30 parts of citric acids, 100 parts of aluminium oxide, 20 parts of boric acid and 80 parts of isopropyl alcohols are added to dispersion machine, the speed that is greater than 25m ∕ s with dispersion impeller linear velocity is sheared 2 hours, obtains being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the poly-vinyl alcohol solution that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, stir, make coating fluid, coating fluid be incubated at 45 DEG C, standing froth breaking;
Described citric acid replaces with tartaric acid or tartaric acid; Described boric acid concentration is 5%, and the concentration of described poly-vinyl alcohol solution is 10%.
The aluminium oxide that the present invention is used and hydrate can be expressed by the following formula:
Al
2O
3-n(OH)
2n·mH
2O
Wherein n represents 0,1,2 or 3; M represents 0-10, preferably integer or the non-integer within the scope of 0-5.In most of the cases, mH
2o represents not to be present in the discharged water in lattice, and therefore m can be integer or non-integer, if material is dried through strict, m can be 0.
Aluminium oxide and hydrate can make according to known method.For example, according to United States Patent (USP) 4,242,271 and 4,202, described in 870, aluminium alcoholates or sodium aluminate are hydrolyzed; Or carry out neutralization precipitation according to 85,100,161 pairs of sodium aluminates of Chinese patent CN; Or generate to such an extent that bauxite with NaOH react obtain to such an extent that aluminium hydroxide manufacture by sintering through heat treatment is natural according to Bayer method.
The aluminium oxide that the present invention is used and the primary particle diameter of hydrate are 6-20nm.The aggregate particle size of dispersion liquid is 120-300nm particle size range.Wherein aggregate particle size is defined as follows: aluminium oxide and hydrate are dispersed in dilute nitric acid solution to the mass concentration 0.4% of nitric acid in dispersion liquid, Al
2o
3mass concentration be 10%.This is laser particle size analyzer (as Malvern Zetasizer 3000HS, Malvern Instruments Ltd., UK) test for dispersion liquid.
The crystalline structure of aluminium oxide of the present invention and hydrate can be known amorphous state or boehmite or boehmite, or amorphous state or boehmite or boehmite γ, the σ, η, θ and the α type that convert to.
The present invention's polyvinyl alcohol used is cation-modified polyvinyl alcohol, nonionic modified polyvinyl alcohol, anionic polyvinyl alcohol, silanol alkane modified polyvinylalcohol.The degree of polymerization of polyvinyl alcohol is 1700～4000, alcoholysis degree 70%～99%.Polyvinyl alcohol used can be the mixture of single model or its arbitrary proportion.
Medical high definition ink jet photographic film coating fluid preparation method provided by the invention, its beneficial effect is, use citric acid, tartaric acid or tartaric acid to replace volatility acetic acid dispersed alumina powder, can eliminate product because of use acetic acid with acidic smell, environmental protection more, the while can maintain the performance of acetic acid reduction cold point temperature in coating fluid.
Detailed description of the invention
Below in conjunction with four embodiment, medical high definition ink jet photographic film coating fluid preparation method provided by the invention is described in detail.
Embodiment mono-
The medical high definition ink jet photographic film coating fluid preparation method of the present embodiment: comprise the following steps:
(1) under room temperature, by 290 parts of water, 10 parts of citric acids, 100 parts of aluminium oxide (DISPERAL HP 14, trade name, manufactured primary particle diameter 14nm, aggregate particle size 120nm by condea company), 20 parts of boric acid that concentration is 5%, 80 parts of isopropyl alcohols add dispersion machine, be greater than 25m ∕ s shear 2 hours with dispersion impeller linear velocity, obtain being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the polyvinyl alcohol (PVA235 that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, the degree of polymerization 3500, alcoholysis degree 88%, by Kuraray, company manufactures) solution mixing, stir, make coating fluid, coating fluid is incubated at 45 DEG C, leaves standstill froth breaking;
The above-mentioned steps that takes a morsel (2) coating fluid is placed in the thermostat water bath of 45 DEG C and heats 30 minutes, and rotation viscometer rotor is immersed in coating fluid, and with 60rpm measurement of rotating speed viscosity number, its gel index is 50.At the temperature of 45 DEG C, described coating fluid is added to lambda line rod coating machine, be applied on RC paper substrate with 160g ∕ ㎡, then coated carrier is dried to 60 minutes at the temperature of 65 DEG C.Under ambient temperature and moisture, dried specimen page is kept flat on the table, apart from specimen page 20cm, the specimen page that applies one's nose to, odorlessness.
Embodiment bis-
The medical high definition ink jet photographic film coating fluid preparation method of the present embodiment: comprise the following steps:
(1) under room temperature, by 270 parts of water, 30 parts of citric acids, 100 parts of aluminium oxide (DISPERAL HP 14, trade name, manufactured primary particle diameter 14nm, aggregate particle size 120nm by condea company), 20 parts of boric acid that concentration is 5%, 80 parts of isopropyl alcohols add dispersion machine, be greater than 25m ∕ s shear 2 hours with dispersion impeller linear velocity, obtain being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the polyvinyl alcohol (PVA235 that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, the degree of polymerization 3500, alcoholysis degree 88%, by Kuraray, company manufactures) solution mixing, stir, make coating fluid, coating fluid is incubated at 45 DEG C, leaves standstill froth breaking;
The above-mentioned steps that takes a morsel (2) coating fluid is placed in the thermostat water bath of 45 DEG C and heats 30 minutes, and rotation viscometer rotor is immersed in coating fluid, and with 60rpm measurement of rotating speed viscosity number, its gel index is 50.At the temperature of 45 DEG C, described coating fluid is added to lambda line rod coating machine, be applied on RC paper substrate with 160g ∕ ㎡, then coated carrier is dried to 60 minutes at the temperature of 65 DEG C.Under ambient temperature and moisture, dried specimen page is kept flat on the table, apart from specimen page 20cm, the specimen page that applies one's nose to, odorlessness.
Embodiment tri-
The medical high definition ink jet photographic film coating fluid preparation method of the present embodiment: comprise the following steps:
(1) under room temperature, by 280 parts of water, 20 parts of tartaric acid, 100 parts of aluminium oxide (DISPERAL HP 14, trade name, manufactured primary particle diameter 14nm, aggregate particle size 120nm by condea company), 20 parts of boric acid that concentration is 5%, 80 parts of isopropyl alcohols add dispersion machine, be greater than 25m ∕ s shear 2 hours with dispersion impeller linear velocity, obtain being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the polyvinyl alcohol (PVA235 that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, the degree of polymerization 3500, alcoholysis degree 88%, by Kuraray, company manufactures) solution mixing, stir, make coating fluid, coating fluid is incubated at 45 DEG C, leaves standstill froth breaking;
The above-mentioned steps that takes a morsel (2) coating fluid is placed in the thermostat water bath of 45 DEG C and heats 30 minutes, and rotation viscometer rotor is immersed in coating fluid, and with 60rpm measurement of rotating speed viscosity number, its gel index is 51.At the temperature of 45 DEG C, described coating fluid is added to lambda line rod coating machine, be applied on RC paper substrate with 160g ∕ ㎡, then coated carrier is dried to 60 minutes at the temperature of 65 DEG C.Under ambient temperature and moisture, dried specimen page is kept flat on the table, apart from specimen page 20cm, the specimen page that applies one's nose to, odorlessness.
Embodiment tetra-
The medical high definition ink jet photographic film coating fluid preparation method of the present embodiment: comprise the following steps:
(1) under room temperature, by 280 parts of water, 20 parts of tartaric acid, 100 parts of aluminium oxide (DISPERAL HP 14, trade name, manufactured primary particle diameter 14nm, aggregate particle size 120nm by condea company), 20 parts of boric acid that concentration is 5%, 80 parts of isopropyl alcohols add dispersion machine, be greater than 25m ∕ s shear 2 hours with dispersion impeller linear velocity, obtain being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the polyvinyl alcohol (PVA235 that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, the degree of polymerization 3500, alcoholysis degree 88%, by Kuraray, company manufactures) solution mixing, stir, make coating fluid, coating fluid is incubated at 45 DEG C, leaves standstill froth breaking;
The above-mentioned steps that takes a morsel (2) coating fluid is placed in the thermostat water bath of 45 DEG C and heats 30 minutes, and rotation viscometer rotor is immersed in coating fluid, and with 60rpm measurement of rotating speed viscosity number, its gel index is 50.At the temperature of 45 DEG C, described coating fluid is added to lambda line rod coating machine, be applied on RC paper substrate with 160g ∕ ㎡, then coated carrier is dried to 60 minutes at the temperature of 65 DEG C.Under ambient temperature and moisture, dried specimen page is kept flat on the table, apart from specimen page 20cm, the specimen page that applies one's nose to, odorlessness.
Comparative example
The medical high definition ink jet photographic film coating fluid preparation method of the present embodiment: comprise the following steps:
(1) under room temperature, by 280 parts of water, 20 parts of acetic acid, 100 parts of aluminium oxide (DISPERAL HP 14, trade name, manufactured primary particle diameter 14nm, aggregate particle size 120nm by condea company), 20 parts of boric acid that concentration is 5%, 80 parts of isopropyl alcohols add dispersion machine, be greater than 25m ∕ s shear 2 hours with dispersion impeller linear velocity, obtain being oxidized calorize dispersion liquid;
(2) at the temperature of 45 DEG C, to stirring and add the polyvinyl alcohol (PVA235 that 100 parts of concentration are 10% in described oxidation calorize dispersion liquid, the degree of polymerization 3500, alcoholysis degree 88%, by Kuraray, company manufactures) solution mixing, stir, make coating fluid, coating fluid is incubated at 45 DEG C, leaves standstill froth breaking;
The above-mentioned steps that takes a morsel (2) coating fluid is placed in the thermostat water bath of 45 DEG C and heats 30 minutes, and rotation viscometer rotor is immersed in coating fluid, and with 60rpm measurement of rotating speed viscosity number, its gel index is 50.At the temperature of 45 DEG C, described coating fluid is added to lambda line rod coating machine, be applied on RC paper substrate with 160g ∕ ㎡, then coated carrier is dried to 60 minutes at the temperature of 65 DEG C.Under ambient temperature and moisture, dried specimen page is kept flat on the table, apart from specimen page 20cm, the specimen page that applies one's nose to, the volatile flavor of acetic acid is pungent, very large.
Measure coating fluid cold point temperature and the results are shown in Table one.
Table one
| Coating fluid | Cold point temperature (DEG C) |
| Embodiment mono- | 25 |
| Embodiment bis- | 20 |
| Embodiment tri- | 22 |
| Embodiment tetra- | 18 |
| Comparative example | 20 |
Claims (3)
1. a medical high definition ink jet photographic film coating fluid preparation method, is characterized in that: comprise the following steps:
One, under room temperature, by proportion by weight, 270-290 parts of water, 10-30 parts of citric acids, 100 parts of aluminium oxide, 20 parts of boric acid and 80 parts of isopropyl alcohols are added to dispersion machine, the speed that is greater than 25m ∕ s with dispersion impeller linear velocity is sheared 2 hours, obtains being oxidized calorize dispersion liquid;
Two, at the temperature of 45 DEG C, to stirring and add 100 parts of poly-vinyl alcohol solutions in described oxidation calorize dispersion liquid, stir, make coating fluid, coating fluid be incubated at 45 DEG C, standing froth breaking.
2. medical high definition ink jet photographic film coating fluid preparation method according to claim 1, is characterized in that: described citric acid replaces with tartaric acid or tartaric acid.
3. medical high definition ink jet photographic film coating fluid preparation method according to claim 1, is characterized in that: described boric acid concentration is 5%, and the concentration of described poly-vinyl alcohol solution is 10%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399976A (en) * | 2015-11-26 | 2016-03-16 | 杭州健培科技有限公司 | Preparation process for medical film |
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| CN85102950A (en) * | 1985-04-19 | 1986-10-29 | 中国科学院感光化学研究所 | Technology for developing medical x-ray film into blue picture |
| JP2003231342A (en) * | 2002-02-05 | 2003-08-19 | Oji Paper Co Ltd | Method for manufacturing inkjet recording sheet |
| CN1775875A (en) * | 2005-11-25 | 2006-05-24 | 北京联创佳艺影像新材料技术有限公司 | Ink-jet coating liquid with cold point temperature |
| CN101158130A (en) * | 2007-11-19 | 2008-04-09 | 天津大唐影像材料科技有限公司 | Applying liquid for digit design paper and process for preparing digit design paper by employing the same |
| CN102233758A (en) * | 2010-03-30 | 2011-11-09 | 富士胶片株式会社 | Image forming method |
| CN102774163A (en) * | 2012-07-19 | 2012-11-14 | 江苏飞航医疗器械科技有限公司 | MPET (Metallized Polyethylene Terephthalate) ultrasonic PACS (Picture Archiving and Communication System) medical diagnostic report film and manufacturing method thereof |
-
2012
- 2012-12-27 CN CN201210577203.8A patent/CN103895383A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102950A (en) * | 1985-04-19 | 1986-10-29 | 中国科学院感光化学研究所 | Technology for developing medical x-ray film into blue picture |
| JP2003231342A (en) * | 2002-02-05 | 2003-08-19 | Oji Paper Co Ltd | Method for manufacturing inkjet recording sheet |
| CN1775875A (en) * | 2005-11-25 | 2006-05-24 | 北京联创佳艺影像新材料技术有限公司 | Ink-jet coating liquid with cold point temperature |
| CN101158130A (en) * | 2007-11-19 | 2008-04-09 | 天津大唐影像材料科技有限公司 | Applying liquid for digit design paper and process for preparing digit design paper by employing the same |
| CN102233758A (en) * | 2010-03-30 | 2011-11-09 | 富士胶片株式会社 | Image forming method |
| CN102774163A (en) * | 2012-07-19 | 2012-11-14 | 江苏飞航医疗器械科技有限公司 | MPET (Metallized Polyethylene Terephthalate) ultrasonic PACS (Picture Archiving and Communication System) medical diagnostic report film and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399976A (en) * | 2015-11-26 | 2016-03-16 | 杭州健培科技有限公司 | Preparation process for medical film |
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Application publication date: 20140702 |