CN103818139A - Medical film and preparation method thereof - Google Patents
Medical film and preparation method thereof Download PDFInfo
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- CN103818139A CN103818139A CN201410052656.8A CN201410052656A CN103818139A CN 103818139 A CN103818139 A CN 103818139A CN 201410052656 A CN201410052656 A CN 201410052656A CN 103818139 A CN103818139 A CN 103818139A
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Abstract
The invention provides a medical film and a preparation method thereof. The medical film comprises a substrate and an ink-absorbing coating covered on the substrate; wherein the ink-absorbing coating is composed of an ink powder absorbent, a dispersant, and an adhesive according to a weight ratio of (19-23):(1-4):(30-33), and a polyurethane prime coating is arranged between the substrate and the ink-absorbing coating. The invention also provides a preparation method of the medical film. The medical film is non-toxic and odorless, and has the advantages of cohesiveness, waterproofness, scratch resistance, and anti-static property; the drying speed of the medical film is very fast after the film absorbs ink, and the output image is clear and does not fade.
Description
Technical field
The present invention relates to printing film technical field, and relate in particular to a kind of medical film and preparation method thereof.
Background technology
Along with the development of social civilization, national economy fast continual development, the mankind's health care level improves constantly, and the demand to medical film on market constantly increases.Conventional silver halide CT sheet, X-ray medical film be using silver sensitive material as medium, use before can not see light.And this silver salt photographic film is become a full member and the process such as is looked like through the exposure of medical treatment (X-ray) apparatus, developing process, fixing, negative-appearing image, though can form the medical image of using for medical diagnosis, but image can only obtain not reproducible erect image, the image on photo and actual image left and right phase inversion.And this silver salt photographic film is easily drawn and is damaged by external force wiping, also can be because of long oxidation blackening, be extremely difficult for preserving.
Moreover, the silver salt photographic film that tradition is used is not only wasted a large amount of natural resources, and the harmful substance producing in imaging process, not only medical personnel's health is caused damage, and also can pollute environment.In addition, in development, photographic fixing, rinse, dry, will expend a large amount of manpower and financial resources in the link such as filing.And this film is more because its color is single, cannot export various coloured images, thereby cannot embody the advantage of the increasing medical image post-procession technique of modernization.
Therefore, be badly in need of a kind of novel high definition medical film of development and substitute conventional silver halide film.
Summary of the invention
The present invention is directed to the problems referred to above, proposed a kind of existing issue that solves conventional silver halide film, substitute new medical film of conventional silver halide film and preparation method thereof.
For achieving the above object, the invention provides a kind of medical film, comprising: matrix, and ink-absorbed coated layer in matrix one side.Wherein, ink-absorbed coated layer contains ink powder adsorbent, dispersant and adhesive, and is (19～23) by weight proportion: (1～4): (30～33).
Preferably, between matrix and ink-absorbed coated layer, also has the primary coat of one deck polyurethane.
Preferably, ink powder adsorbent is nano aluminium oxide, calcium carbonate or silica; Dispersant is acetic acid, nitric acid or hydrochloric acid; Adhesive is VAE emulsion, acrylic emulsion, polyaminoester emulsion or poly-vinyl alcohol solution.
Preferably, ink-absorbed coated layer also contains crosslinking agent, defoamer, coating color and levelling agent or wetting agent, and the part by weight of ink powder adsorbent, dispersant, adhesive, crosslinking agent, defoamer, coating color and levelling agent or wetting agent is: (19～23): (1～4): (30～33): (0.8～1): (2～5): 0.1: (1～2).Wherein, crosslinking agent is boric acid or borax.Defoamer is propyl alcohol, ethanol, methyl alcohol or ethylene glycol.Coating color color is blue.Levelling agent is acrylic polymer, polyurethanes or silicone based.
Preferably, matrix is PET sheet base.
The present invention also provides a kind of preparation method of medical film, comprises the following steps:
1) prepare coating fluid: by the ink powder adsorbent of 19～23 weight portions, the adhesive of the dispersant of 1～4 weight portion and 30～33 weight portions is dissolved in the pure water of 40～44 weight portions and stirs, and makes coating fluid.
2) coating fluid is coated to the one side of matrix, forms ink-absorbed coated layer after dry, make medical film.
Preferably, the preparation method of medical film also comprises primary coat step, before applying coating fluid, first on matrix, applies the primary coat of one deck polyurethane.
Preferably, the ink powder adsorbent of preparing in coating fluid step is nano aluminium oxide, calcium carbonate or silica; Dispersant is acetic acid, nitric acid or hydrochloric acid; Adhesive is VAE emulsion, acrylic emulsion, polyaminoester emulsion or poly-vinyl alcohol solution.
Preferably, prepare in coating fluid step, also add the crosslinking agent of 0.8～1 weight portion, the defoamer of 2～5 weight portions, the coating color of 0.1 weight portion, levelling agent or the wetting agent of 1～2 weight portion.Wherein, crosslinking agent is boric acid or borax; Defoamer is propyl alcohol, ethanol, methyl alcohol or ethylene glycol; Coating color color is blue; Levelling agent is acrylic polymer, polyurethanes or silicone based.
Preferably, matrix is PET sheet base.
Medical film provided by the invention belongs to environment-friendly type macromolecule polymer elasticity waterproof material, and product is nonpoisonous and tasteless, anti-skidding, antistatic, also has good caking property and water proofing property.And durability of coating is good, can stand for a long time the irradiation of daylight, and the inner structural strength of coating is high, good to the adhesive force of base material, coating printing surface has good scratch resistance, and after blotting, rate of drying is fast especially, and the image frame of output is clear, colour-fast, available oiliness pencil signature, easy to use.Medical film provided by the invention is applicable to the new trend of modernization medical image output, is not only applicable to facing (reflecting effect), is also applicable to perspective (transmission effects) simultaneously, has changed the traditional pattern that can only watch under viewbox.Meeting the international standard of medical image, adapt to the development trend of world medicine image, is the optimal selection of clinical medicine image printing.Medical film of the present invention has solved the existing issue of conventional silver halide film, is a kind of new medical film of alternative conventional silver halide film.
Accompanying drawing explanation
Specific embodiments of the invention are described below with reference to accompanying drawings, wherein:
Fig. 1 is the medical film preparation method's of preferred embodiment of the present invention schematic flow sheet.
Fig. 2 is the schematic flow sheet of preparing coating fluid in the medical film preparation method of preferred embodiment of the present invention.
The specific embodiment
In order to make technical scheme of the present invention and advantage clearer, below in conjunction with accompanying drawing, exemplary embodiment of the present invention is described in more detail, obviously, described embodiment is only a part of embodiment of the present invention, rather than all embodiment's is exhaustive.
Fig. 1 is the medical film preparation method's of preferred embodiment of the present invention schematic flow sheet.As shown in Figure 1, the medical film preparation method of preferred embodiment of the present invention mainly comprises the following steps:
Step S100: prepare transparent watertight sheet base.
The matrix of medical film of the present invention is selected transparent watertight sheet base, preferably PET sheet base.That PET sheet base has is high temperature resistant, the high grade of transparency, low adhering performance, and anti-static effect is good, consistency of performance, stable advantage.Because PET sheet base is antistatic base material, printer is worked continuously reach to eat 1000, paper paperboard not above, improve delivery efficiency.And PET sheet basic ring guarantor, nonpoisonous and tasteless, be that one prevents dust and impurity absorption, and prevent the surface protecting material of electrostatic damage function, be adapted at ten thousand grades of dust free rooms and process, cleanliness factor is extremely excellent.
Be ready to, after transparent watertight sheet base, can to carry out step S300: apply coating fluid, the dry rear ink-absorbed coated layer that forms.Wherein, coating fluid is by the ink powder adsorbent of 19～23 weight portions, the adhesive of the dispersant of 1～4 weight portion and 30～33 weight portions be dissolved according to the order of sequence in the pure water of 40～44 weight portions, stir formulated.In addition, in coating fluid, also can add the crosslinking agent of 0.8～1 weight portion, the defoamer of 2～5 weight portions, the coating color of 0.1 weight portion, levelling agent or the wetting agent of 1～2 weight portion.
Finally, after completing steps S300, at step S400, make the new medical film in the present embodiment.
Preferably, before PET sheet base applies coating fluid, also can increase step S200: apply polyurethane primary coat.
Medical film of the present invention can increase the primary coat of one deck aqueous polyurethane in PET substrate one side by corona, increases the adhesive force of coating.Polyurethane primary coat is a kind of adhesive, can further improve the cohesive force between PET substrate and ink powder absorbent coating, prevents that coating from coming off.
Introduce in detail the preparation method of the coating fluid in medical film preparation method of the present invention below in conjunction with Fig. 2, Fig. 2 is the schematic flow sheet of preparing coating fluid in the medical film preparation method of preferred embodiment of the present invention, as shown in Figure 2, the preparation process of coating fluid is specific as follows:
Step S301: add the nano aluminium oxide of 19～23 weight portions, the acetic acid of 1～4 weight portion in the pure water of 40～44 weight portions, stir.
Wherein, nano aluminium oxide is ink powder adsorbent, and ink powder adsorbent can also be calcium carbonate or silica.Medical film of the present invention preferably uses nano aluminium oxide as ink powder adsorbent, and nano aluminium oxide has porous high degree of dispersion, has very large surface area, and existing good absorption property has again good withstand voltage, wear-resistant and heat resistance.And acetic acid is dispersant, dispersant can also be nitric acid or hydrochloric acid.Consider that nitric acid has strong oxidizing property and corrosivity, soluble in water, in water, ionization completely, unstable, sees that light easily decomposes.And hydrochloric acid is a kind of strong acid, concentrated hydrochloric acid has extremely strong volatility.The present embodiment selects acetic acid as dispersant, and acetic acid claims again acetic acid, is typical aliphatic acid, is a kind of acidity regulator of regulation.
Step S302: add the polyvinyl alcohol of 30～33 weight portions in the solution making to step S301, stir.Wherein, polyvinyl alcohol is adhesive, and adhesive can also be VAE emulsion, acrylic emulsion or polyaminoester emulsion.Because VAE emulsion viscosity is too high, very thick, be difficult for disperseing.Acrylic emulsion adhesive chance naked light, high temperature, strong oxidizer have danger of combustion.Easily hydrolysis under polyurethane binder hot and humid environment, affects service life thereby reduce bonding strength.Consider; medical film preparation method's of the present invention embodiment selects polyvinyl alcohol as adhesive; polyvinyl alcohol has unique powerful cementability, epithelium pliability, flatness, oil resistivity, solvent resistance, protecting colloid, gas barrier performance, wearability, and the resistance to water having after specially treated, nonpoisonous and tasteless, pollution-free.In addition, also can in 80～90 ℃ of water, dissolve, its aqueous solution has good cementability and film forming.
By step S301～S302, completing steps S312: make coating fluid.The coating fluid that step S312 is made is coated on PET sheet base, completing steps S300.
In addition, in coating fluid, also can add the crosslinking agent of 0.8～1 weight portion, the defoamer of 2～5 weight portions, the coating color of 0.1 weight portion, the auxiliary agent such as levelling agent or wetting agent of 1～2 weight portion.Now, in the method for the present embodiment, increase step S303～S306.
Step S303: add 0.8～1 boric acid in the solution making to step S302, stir.Boric acid is crosslinking agent, and crosslinking agent is except selecting boric acid can also select borax.Because the polyvinyl alcohol waterproof effect in solution is poor, so add appropriate boric acid to play crosslinked effect.
Step S304: add the isopropyl alcohol of 2～5 weight portions in the solution making to step S303, stir.Wherein, isopropyl alcohol is defoamer, and defoamer can be also ethanol, methyl alcohol or ethylene glycol certainly.Consider cost factor, the embodiment of medical film preparation method of the present invention choosing selects isopropyl alcohol, and it is not only cheap, and purposes is wide, and can and water freely mix, stronger than ethanol to the dissolving power of close soluble substance.
Step S305: add levelling agent or wetting agent in the solution making to step S304, stir.Levelling agent can be acrylic polymer, polyurethanes or silicone based.Consider levelling effect, preferably poly-phenoxy propionic acid levelling agent, it has strong levelability, has more froth breaking ability, and does not affect ply adhesion.Consider that PET sheet base wetability is poor, can not eliminate shrinkage cavity, so also can add wetting agent.
Step S306: add coating color in the solution making to step S305.The color of the coating color adding can be the colors such as Transparent color, off-white color, black or blueness.The present embodiment is selected blue pigment, is because of blue pigment lovely luster, strong coloring force, and diffusivity is strong.Its maximum absorption peak is 605nm, the good stability of pigment, sun-proof, high temperature resistant, resistance to various solvent borne.And the relative density 1.8 of blue pigment, water insoluble, ethanol and ether, be dissolved in soda acid.In addition, it is orange, orange that blue pigment is selected etc. while making filter, and more medical personnel provides more horn of plenty, film content information clearly, improves diagnosis capability.And blue pigment has unique light outward appearance, produce soft, elegant effect.
Can prepare medical film provided by the invention by above-mentioned steps, this film comprises: matrix, and ink-absorbed coated layer in described matrix one side.Wherein, the composition that ink-absorbed coated layer contains following ratio: ink-absorbed coated layer contains ink powder adsorbent, dispersant and adhesive, and be (19～23) by weight proportion: (1～4): (30～33).In addition, ink-absorbed coated layer also can contain crosslinking agent, defoamer, coating color and levelling agent or wetting agent, and the part by weight of ink powder adsorbent, dispersant, adhesive, crosslinking agent, defoamer, coating color and levelling agent or wetting agent is: (19～23): (1～4): (30～33): (0.8～1)∶(2～5)∶0.1∶(1～2)。
In addition, in medical film of the present invention and preparation method thereof, adopt equivalent coating method, at the positive coating of PET film environmental protection imaging layer, color reducibility is good, and saturation degree is high, and picture stereovision is strong.And available ball pen, pencil or permanent pen are write, can retain for a long time, not flavescence, indeformable, also can Reusability.Medical film of the present invention does not all contain photosensitive silver halide composition, and printout process is nontoxic, has saved show/fixing bath procedure of conventional silver halide product, has thoroughly eliminated the pollution of washing processing to environment.
Medical film of the present invention and preparation method thereof improves Maragoni effect in production process by adding the variety of ways such as molecular antifoaming agent, hydrophobicity dispersant, acrylic emulsion thickener, the phenomenons such as cissing, webbing and the alice of inhibition shrinkage cavity, depression, pin hole and corner.And change the traditional pattern that can only see under viewbox, even the picture that color is very complicated can carry out flying print and quick blotting under full color mode, thereby has saved the time of medical procedure, promote the usefulness of hospital, also improved quality of medical care.The Digital output of medical film suitable medical image of the present invention, comprise medical picture and text diagnosis report, be not only applicable to the thermosensitive laser printers such as HP, OKI, RPSON, CACON, FUJI, XEROX, be applicable to ink-jet printer yet, and there is good absorbency simultaneously.
Above embodiment is only in order to technical scheme of the present invention to be described, but not is limited.Therefore,, in the situation that not deviating from spirit of the present invention and essence thereof, those skilled in the art can make various changes, replacement and modification.Obviously, but within these changes, replacement and modification all should be covered by the protection domain of the claims in the present invention.
Claims (10)
1. a medical film, is characterized in that, comprising: matrix, and ink-absorbed coated layer in described matrix one side;
Described ink-absorbed coated layer contains ink powder adsorbent, dispersant and adhesive, and is (19～23) by weight proportion: (1～4): (30～33).
2. medical film as claimed in claim 1, is characterized in that, also has the primary coat of one deck polyurethane between described matrix and described ink-absorbed coated layer.
3. medical film as claimed in claim 1 or 2, is characterized in that,
Described ink powder adsorbent is nano aluminium oxide, calcium carbonate or silica;
Described dispersant is acetic acid, nitric acid or hydrochloric acid;
Described adhesive is VAE emulsion, acrylic emulsion, polyaminoester emulsion or poly-vinyl alcohol solution.
4. medical film as claimed in claim 1 or 2, it is characterized in that, described ink-absorbed coated layer also contains crosslinking agent, defoamer, coating color and levelling agent or wetting agent, and the part by weight of ink powder adsorbent, dispersant, adhesive, crosslinking agent, defoamer, coating color and levelling agent or wetting agent is: (19～23): (1～4): (30～33): (0.8～1): (2～5): 0.1: (1～2);
Described crosslinking agent is boric acid or borax;
Described defoamer is propyl alcohol, ethanol, methyl alcohol or ethylene glycol;
Described coating color color is blue;
Described levelling agent is acrylic polymer, polyurethanes or machine silicon class.
5. medical film as claimed in claim 1 or 2, is characterized in that, described matrix is PET sheet base.
6. a medical film preparation method, is characterized in that, comprises the following steps:
1) prepare coating fluid: by the ink powder adsorbent of 19～23 weight portions, the adhesive of the dispersant of 1～4 weight portion and 30～33 weight portions is dissolved in the pure water of 40～44 weight portions and stirs, and makes coating fluid;
2) coating fluid is coated to the one side of matrix, forms ink-absorbed coated layer after dry, make medical film.
7. medical film preparation method as claimed in claim 6, is characterized in that, described preparation method also comprises primary coat step, before applying coating fluid, first on described matrix, applies the primary coat of one deck polyurethane.
8. the medical film preparation method as described in claim 6 or 7, is characterized in that, the described described ink powder adsorbent of preparing in coating fluid step is nano aluminium oxide, calcium carbonate or silica;
Described dispersant is acetic acid, nitric acid or hydrochloric acid;
Described adhesive is VAE emulsion, acrylic emulsion, polyaminoester emulsion and poly-vinyl alcohol solution.
9. the medical film preparation method as described in claim 6 or 7, it is characterized in that, described preparation in coating fluid step, also add the crosslinking agent of 0.8～1 weight portion, the defoamer of 2～5 weight portions, the coating color of 0.1 weight portion, levelling agent or the wetting agent of 1～2 weight portion;
Described crosslinking agent is boric acid or borax;
Described defoamer is propyl alcohol, ethanol, methyl alcohol or ethylene glycol;
Described coating color color is blue;
Described levelling agent is acrylic polymer, polyurethanes or silicone based.
10. the medical film preparation method as described in claim 6 or 7, is characterized in that, it is PET sheet base that described coating fluid is coated to matrix described in matrix step.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104449112A (en) * | 2014-12-12 | 2015-03-25 | 上海森彩数码喷绘材料有限公司 | Coating adhesive for medical laser printing film and printing medium |
| CN105399976A (en) * | 2015-11-26 | 2016-03-16 | 杭州健培科技有限公司 | Preparation process for medical film |
| CN105437813A (en) * | 2014-09-28 | 2016-03-30 | 杭州健培科技有限公司 | Laser medical film and preparation method thereof |
| CN106379069A (en) * | 2016-08-29 | 2017-02-08 | 合肥菲力姆数码科技有限公司 | Medical laser printing film |
| CN106700775A (en) * | 2016-12-05 | 2017-05-24 | 天津市瑞擎影像材料有限公司 | Novel water-based medical ink-jet film coating |
| CN109621496A (en) * | 2018-11-26 | 2019-04-16 | 杭州健培科技有限公司 | The process that bubble generates is reduced in a kind of medical film coating process |
| CN109868044A (en) * | 2018-12-06 | 2019-06-11 | 杭州梅清数码科技有限公司 | A kind of print media protective layer and preparation method thereof |
| CN115431655A (en) * | 2022-10-14 | 2022-12-06 | 深圳深汕特别合作区昌茂粘胶新材料有限公司 | Preparation of PET matrix coating suitable for ink-jet printing |
| CN116533297A (en) * | 2023-05-25 | 2023-08-04 | 广东鑫亿帆材料科技有限公司 | Production and manufacturing process of flame-retardant magnetic attraction film |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105437813A (en) * | 2014-09-28 | 2016-03-30 | 杭州健培科技有限公司 | Laser medical film and preparation method thereof |
| CN104449112A (en) * | 2014-12-12 | 2015-03-25 | 上海森彩数码喷绘材料有限公司 | Coating adhesive for medical laser printing film and printing medium |
| CN104449112B (en) * | 2014-12-12 | 2017-04-05 | 上海森彩数码喷绘材料有限公司 | The coating adhesive and print media thing of medical laser printing film |
| CN105399976A (en) * | 2015-11-26 | 2016-03-16 | 杭州健培科技有限公司 | Preparation process for medical film |
| CN106379069A (en) * | 2016-08-29 | 2017-02-08 | 合肥菲力姆数码科技有限公司 | Medical laser printing film |
| CN106700775A (en) * | 2016-12-05 | 2017-05-24 | 天津市瑞擎影像材料有限公司 | Novel water-based medical ink-jet film coating |
| CN109621496A (en) * | 2018-11-26 | 2019-04-16 | 杭州健培科技有限公司 | The process that bubble generates is reduced in a kind of medical film coating process |
| CN109868044A (en) * | 2018-12-06 | 2019-06-11 | 杭州梅清数码科技有限公司 | A kind of print media protective layer and preparation method thereof |
| CN115431655A (en) * | 2022-10-14 | 2022-12-06 | 深圳深汕特别合作区昌茂粘胶新材料有限公司 | Preparation of PET matrix coating suitable for ink-jet printing |
| CN116533297A (en) * | 2023-05-25 | 2023-08-04 | 广东鑫亿帆材料科技有限公司 | Production and manufacturing process of flame-retardant magnetic attraction film |
| CN116533297B (en) * | 2023-05-25 | 2023-10-17 | 广东鑫亿帆材料科技有限公司 | Production and manufacturing process of flame-retardant magnetic attraction film |
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Denomination of invention: A medical film and its preparation method Effective date of registration: 20200924 Granted publication date: 20161102 Pledgee: Shandong Linqu Rural Commercial Bank Co., Ltd Pledgor: WEIFANG HENGCAI DIGITAL PHOTO MATERIALS Co.,Ltd. Registration number: Y2020980006417 |
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