CN105216472B - A kind of dry type medical film polyester film base - Google Patents
A kind of dry type medical film polyester film base Download PDFInfo
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- CN105216472B CN105216472B CN201510728218.3A CN201510728218A CN105216472B CN 105216472 B CN105216472 B CN 105216472B CN 201510728218 A CN201510728218 A CN 201510728218A CN 105216472 B CN105216472 B CN 105216472B
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Abstract
The present invention provides a kind of dry type medical film polyester film bases, including backing layer, film support, bottom, wherein, bottom and backing layer are respectively coated by being coated with online on the two sides of film support, the bottom of polyester film base improves the adhesive force with thermographic layer, the backing layer of chip base has excellent smooth performance and anti-static function simultaneously, keeps that electrostatic and adhesion phenomenon will not occur during film printing, and machine is crossed with good.The polyester film base simple production process manufactures of low cost, excellent combination property.
Description
Technical field
The present invention relates to medical film technical fields, particularly a kind of chip base for dry type medical film.
Background technology
With the continuous development of Medical Imaging Technology, from wet type medical film to dry type medical film and the medical number of dry type
Word film.At present, dry type medical film has become mainstream in medical image record.Traditional wet medical film refers mainly to
Light-sensitive silver halide medical film, such film are easily influenced by outside environmental elements, and it is big to preserve difficulty.The imaging process of film needs
It is machined by developing fixing, film generates waste liquid during developing fixing, pollutes environment.Dry type medical film is then not required to
Will as wet type medical film by development and fixing solution processing, be it is a kind of by heat quick, laser or inkjet printing plus
The medical film of work mode novel digital imaging.Process environmental protection is convenient, imaging clearly.
Dry type medical film structure is generally made of backing layer, bottom, film support, bottom, imaging layer and cuticular layer.
Dry type medical film is classified according to the difference of imaging mode, can be divided into laser printing dry type film, inkjet printing dry type film,
Thermal printing dry type film.Laser printing dry type film is a kind of photosensitive material medical adhesive to grow up with laser printer
The advantages of piece, the film is image stabilization, easy to process, but the film is slightly higher using coating material cost, use scope
It is restricted, and poor there are storage stability；Inkjet printing dry type film is a kind of medical imaging glue for inkjet printing
Piece, smooth performance and anti-static effect are poor during use；Thermal printing dry type film is a kind of medical film for thermal printing,
It is generally imaged using organic heat susceptible coating, part film is felt well simultaneously there are the problem of chip base and bad thermographic layer adhesive force
Slip can be poor with anti-static effect.
Above-mentioned medical film is typically using polyester film as support, in order to improve attachment of the imaging layer to film support
Property, it needs in advance to carry out polyester film support bottom coating waste water, this finished polyester film of bottom is commonly referred to as
Polyester film base, the polyester film base exist with the undesirable situation of part thermographic layer adhesive force, cause film cutting print
Phenomena such as generating picking, chipping in the process, affects the quality and printing effect of film, while processing machine equipment is caused to damage
Wound；The back side of polyester film base, smooth performance and anti-static function are poor, cause to generate adhesion phenomenon in print procedure, cross machine
It can be poor, it is therefore desirable to which the back side is coated to improve smooth performance and anti-static function, and cost is higher.Traditional laser printing is done
In the production process of formula film, inkjet printing dry type film and thermal printing dry type film, before backing layer coating process, first exist
The surface of polyester film carries out the coating of bottom, the coating of backing layer is then carried out in bottom surface, step is tediously long to be unfavorable for improving
Production efficiency.
In conclusion laser printing dry type film, inkjet printing dry type film and thermal printing dry type film polyester piece
The base back side generates adhesion phenomenon there are smooth performance and anti-static function are poor in print procedure, cross machine poor performance, therefore need
The back side is wanted to be coated to improve smooth performance and anti-static function, cost is higher.Part thermal printing dry type film is used simultaneously
The bottom of polyester film base and thermographic layer adhesive force there are it is bad the phenomenon that.
Invention content
The object of the present invention is to provide a kind of dry type medical film polyester film bases, and bottom is respectively coated by two-sided online
With backing layer aqueous high molecular material, the adhesive force of film support and thermographic layer is not only improved, while completes backing layer painting
Cloth improves smooth performance and antistatic performance, and machine is crossed with good, without subsequently carrying out smooth coating process again and preventing
Electrostatic applications processing, simplifies process of manufacture, reduces cost, comprehensive performance is more excellent.
The purpose of the present invention is achieved through the following technical solutions：
A kind of dry type medical film polyester film base, including film support, bottom and backing layer, wherein, bottom and backing layer lead to
Online coating is crossed to be respectively coated on the two sides of film support；The underlayer thickness is 0.1 μm ~ 1.0 μm, preferably 0.2 μm ~ 0.8 μm.
Above-mentioned dry type medical film polyester film base, the backing layer thickness are 0.2 μm ~ 5.0 μm, preferably 0.5 μm ~ 3.0 μm.
Above-mentioned dry type medical film polyester film base, the bottom contain adhesive, crosslinking agent, the first matting agent, first
Auxiliary agent and deionized water, the weight percent of each component are as follows：
Adhesive 5%~55%
Crosslinking agent 0.3%~4%
First matting agent 0.3%~3%
First auxiliary agent 3%~5%
Deionized water 40%~85%.
Above-mentioned dry type medical film polyester film base, the backing layer contain resin, crosslinking agent, the second matting agent, second help
Agent, antistatic agent and deionized water, the weight percent of each raw material are as follows：
Resin 8%~45%
Crosslinking agent 0.5%~3.5%
Second matting agent 2%~15%
Second auxiliary agent 2%~5%
Antistatic agent 4%~10%
Deionized water 40%~60%.
Above-mentioned dry type medical film polyester film base, described adhesive is polyester, polyvinyl alcohol, polyacrylate, poly- ammonia
One kind in the multi-component adhesive that ester, MS modified silanes, epoxy resin, gelatin, styrene-butadiene latex or phenolic aldehyde-epoxy type are modified
Or several, preferably styrene-butadiene latex, polyvinyl alcohol and polyacrylate mixed type adhesive.
Above-mentioned dry type medical film polyester film base, the antistatic agent is polythiophene Polymer-metallic Catalyst, cation
Type antistatic agent, preferably polythiophene Polymer-metallic Catalyst.
Above-mentioned dry type medical film polyester film base, first matting agent are Ludox or poly-methyl methacrylate
Ester, preferably Ludox.First auxiliary agent is surfactant, can be ionic surfactant or non-ionic surface
Activating agent.
Above-mentioned dry type medical film polyester film base, second matting agent are Ludox, polymethyl methacrylate, contain
One or more of fluoropolymer, long-chain fatty acid ester or silicone derivative, preferably polymethyl methacrylate and silicon are molten
The mixing matting agent of glue, polymethyl methacrylate grain size are 0.5 μm ~ 5 μm, and the Ludox grain size is 0.01 μm ~ 1.0 μ
m.Second auxiliary agent is levelling agent, can be surfactant, polyacrylic acid or carboxymethyl cellulose.
Above-mentioned dry type medical film polyester film base, the resin for polyester, polyurethane, one kind in polyacrylate or
It is several, the preferred hybrid resin of polyester and polyurethane.
Above-mentioned dry type medical film polyester film base, the second matting agent surface topography can be rule spherical shape or
Irregular shape, the roughness value Ra of the backing layer are at least more than 0.05.
A kind of method for preparing dry type medical film polyester film base, the specific steps are：
First by film support on coating machine after sided corona treatment, the mode that is coated with intaglio plate coating or Mayer will
Bottom coating fluid and backing layer coating fluid are uniformly coated on film support surface by way of online double spread, and bottom is made
And backing layer, it is wound after at least drying of 30s of 100 DEG C of hot winds, dry type medical film polyester film base is made.
The present invention has the beneficial effect that：
1st, the present invention is directly coated with backing layer coating fluid in the one side of polyester film base, by being once coated with, realizes backing layer and bottom
The combination of layer, without subsequently carrying out smooth coating process and antistatic coating process again, simplifies production technology.
2nd, the present invention is by optimizing bottom formula, preferably constitutes and material type, and adds antistatic agent so that temperature-sensitive is beaten
Printing the bottom of dry type film polyester film base and thermographic layer has excellent adhesive force, excellent by optimizing the formula of backing layer
Material is selected, improves smooth performance and antistatic performance, adhesion during film printing has and good crosses machine.
Description of the drawings
Fig. 1 is the structure diagram of dry type medical film polyester film base.
Each label is expressed as in figure：1st, film support, 2, bottom, 3, backing layer.
Specific embodiment
The film support of the present invention is nitrocellulose, cellulose triacetate, preferably polyester, polyester.
The underlayer thickness of the present invention is 0.1 μm ~ 1.0 μm, if underlayer thickness is too small so that film support and imaging layer
Adhesive force reduce；If underlayer thickness is too big, the increase of coating material and the increase of energy consumption in production process, production cost are caused
Increase.So underlayer thickness of the invention is preferably 0.2 μm ~ 0.8 μm.
The backing layer thickness of the present invention is 0.2 μm ~ 5.0 μm, if backing layer thickness is too small, piece primary surface is not achieved certain thick
Rugosity led to machine poor performance；If backing layer thickness is too big, the increase of coating material and the increase of energy consumption in production process are caused,
Production cost increases.So backing layer thickness of the invention is preferably 0.5 μm ~ 3.0 μm.
The present invention the second matting agent for Ludox, polymethyl methacrylate, fluoropolymer, long-chain fatty acid ester or
The mixing matting agent of one or more of person's silicone derivative, preferably polymethyl methacrylate and Ludox.The present invention's
Matting agent grain size to control in certain range, matting agent grain size is too small, and surface roughness effect is bad；Matting agent grain size mistake
Greatly, it easily comes off；Pass through being used in mixed way for organic matting agent and inorganic matting agent different-grain diameter range so that piece primary surface has
Certain surface roughness and resist blocking and that effect.The polymethyl methacrylate grain size of the present invention is preferably 0.5 μm ~ 5 μm, this
The Ludox grain size of invention is preferably 0.01 μm ~ 1.0 μm.
The crosslinking agent of the present invention is melamine, oxazoline or nitrogen pyridine, preferably melamine.
The dry type medical film of the present invention is all-transparent or milky or blue with polyester film base.
With reference to embodiment, the present invention is described further：
Embodiment 1
It is prepared by bottom coating fluid：
First by the first auxiliary agent of 10g deionized waters and 3g（Surfactant, trade mark FES-993, the triumphant petrochemical industry work in Guangzhou have
Limit company）Premix obtains A liquid, then by 75g deionized waters and 5g adhesives（2g styrene-butadiene latexes (trade mark SD332N, Bath
Husband), 2g polyvinyl alcohol (trade mark 1788, Shanghai Kai Du industry developments Co., Ltd), 1g polyacrylate（The trade mark 941, Guangzhou
Sheng Xin Chemical Industry Science Co., Ltd））Premix obtains B liquid, and finally A liquid is slowly added into B liquid, and stirring adds in after ten minutes
0.3g crosslinking agents（The trade mark is LF-8500, Fu Neng resins Co., Ltd of Linan City）, 0.3g first is added in after continuing stirring ten minutes
Matting agent（The trade mark is 14808-60-7, and Shanghai is then into Chemical Co., Ltd.）Bottom coating fluid is made.
It is prepared by backing layer coating fluid：
First by the second auxiliary agent of 10g deionized waters and 2g（Levelling agent, trade mark PE-100, Guangzhou Heng Yu Chemical Co., Ltd.s）
4g antistatic agents are slowly added to after 2min is mixed（The trade mark is SN, Tong Lin chemical products Co., Ltd of Zhengzhou City）, then will
50g deionized waters and 8g resins（4g polyester（The trade mark is 3300S#, Dongguan City Wan Jie Chemical Co., Ltd.s）, 4g polyurethane（The trade mark
It is 901, Xiamen Li get Wei Chemical Co., Ltd.s））0.5g crosslinking agents are slowly added to after premix stirring 2min（The trade mark is LF-8500,
Fu Neng resins Co., Ltd of Linan City）B liquid is made, finally A liquid is slowly added into B liquid, stirring adds in 2g the after ten minutes
Two matting agents（1g polymethyl methacrylates（The trade mark is V040, Dongguan City You Chang engineering plastics Co., Ltd）, 1g Ludox
（The trade mark is LY-57, Guangzhou Han Ju high molecular materials Chemical Co., Ltd.））, backing layer coating fluid is made.
It is coated with the coating fluid of above-mentioned preparation online for 100 μm of film support surfaces in thickness, obtains bottom and backing layer, bottom
The thickness of layer is 0.2 μm, and the thickness of backing layer is 0.5 μm, finally obtains a kind of dry type medical film polyester film base.
Embodiment 2
The preparation of bottom coating fluid：
First by the first auxiliary agent of 10g deionized waters and 3.5g（Surfactant, trade mark FES-993, the triumphant petrochemical industry work in Guangzhou
Co., Ltd）Premix obtains A liquid, then by 40g deionized waters and 25g adhesives（10g styrene-butadiene latexes (trade mark SD332N,
BASF), 10g polyvinyl alcohol (trade mark 1788, Shanghai Kai Du industry developments Co., Ltd), 5g polyacrylate（The trade mark
941, Guangzhou Sheng Xin Chemical Industry Science Co., Ltd））Premix obtains B liquid, and finally A liquid is slowly added into B liquid, stirs ten minutes
1.5g crosslinking agents are added in afterwards（The trade mark is LF-8500, Fu Neng resins Co., Ltd of Linan City）, added in after continuing stirring ten minutes
The first matting agents of 0.8g（The trade mark is 14808-60-7, and Shanghai is then into Chemical Co., Ltd.）Bottom coating fluid is made.
The preparation of backing layer coating fluid：
First by the second auxiliary agent of 10g deionized waters and 4g（Levelling agent, trade mark PE-100, Guangzhou Heng Yu Chemical Co., Ltd.s）
5g antistatic agents are slowly added to after 2min is mixed（The trade mark is SN, Tong Lin chemical products Co., Ltd of Zhengzhou City）, then will
45g deionized waters and 15g resins（7.5g polyester（The trade mark is 3300S#, Dongguan City Wan Jie Chemical Co., Ltd.s）, 7.5g polyurethane
（The trade mark is 901, Xiamen Li get Wei Chemical Co., Ltd.s））1.0g crosslinking agents are slowly added to after premix stirring 2min（The trade mark is LF-
8500, Fu Neng resins Co., Ltd of Linan City）B liquid is made, finally A liquid is slowly added into B liquid, stirring adds in after ten minutes
The second matting agents of 12g（6g polymethyl methacrylates（The trade mark is V040, Dongguan City You Chang engineering plastics Co., Ltd）, 6g silicon
Colloidal sol（The trade mark is 7631-86-9, Shandong Ding Xiang Science and Technology Ltd.s））, backing layer coating fluid is made.
It is coated with the coating fluid of above-mentioned preparation online for 125 μm of film support surfaces in thickness, obtains bottom and backing layer, bottom
The thickness of layer is 0.3 μm, and the thickness of backing layer is 1.0 μm.Finally obtain a kind of dry type medical film polyester film base.
Embodiment 3
The preparation of bottom coating fluid：
First by the first auxiliary agent of 10g deionized waters and 4g（Surfactant, trade mark FES-993, the triumphant petrochemical industry work in Guangzhou have
Limit company）Premix obtains A liquid, then by 50g deionized waters and 35g adhesives（14g styrene-butadiene latexes (trade mark SD332N, bar
Si Fu), 14g polyvinyl alcohol (trade mark 1788, Shanghai Kai Du industry developments Co., Ltd), 7g polyacrylate（The trade mark 941,
Guangzhou Sheng Xin Chemical Industry Science Co., Ltd））Premix obtains B liquid, and finally A liquid is slowly added into B liquid, and stirring adds after ten minutes
Enter 2.0g crosslinking agents（The trade mark is LF-8500, Fu Neng resins Co., Ltd of Linan City）, 1.2g the is added in after continuing stirring ten minutes
One matting agent（The trade mark is 14808-60-7, and Shanghai is then into Chemical Co., Ltd.）Bottom coating fluid is made.
The preparation of backing layer coating fluid：
First by the second auxiliary agent of 10g deionized waters and 3.5g（Levelling agent, trade mark PE-100, the limited public affairs of Guangzhou perseverance space chemical industry
Department）7g antistatic agents are slowly added to after 2min is mixed（The trade mark is SN, Tong Lin chemical products Co., Ltd of Zhengzhou City）, then
By 40g deionized waters and 25g resins（12.5g polyester（The trade mark is 3300S#, Dongguan City Wan Jie Chemical Co., Ltd.s）, 12.5g gathers
Urethane（The trade mark is 901, Xiamen Li get Wei Chemical Co., Ltd.s））1.7g crosslinking agents are slowly added to after premix stirring 2min（The trade mark
For LF-8500, Fu Neng resins Co., Ltd of Linan City）B liquid is made, finally A liquid is slowly added into B liquid, stirs ten minutes
The second matting agents of 8g are added in afterwards（4g polymethyl methacrylates（The trade mark is MA-50, and Dongguan City three closes Chemical Co., Ltd.）、4g
Ludox（The trade mark is FR-250, Hong Yuan Chemical Companies））, backing layer coating fluid is made.
It is coated with the coating fluid of above-mentioned preparation online on the film support surface that thickness is 150 μm, obtains bottom and backing layer,
The thickness of bottom is 0.5 μm, and the thickness of backing layer is 1.5 μm.Finally obtain a kind of dry type medical film polyester film base.
Embodiment 4
The preparation of bottom coating fluid：
First by the first auxiliary agent of 10g deionized waters and 3.5g（Surfactant, trade mark FES-993, the triumphant petrochemical industry work in Guangzhou
Co., Ltd）Premix obtains A liquid, then by 35g deionized waters and 50g adhesives（20g styrene-butadiene latexes (trade mark SD332N,
BASF), 20g polyvinyl alcohol (trade mark 1788, Shanghai Kai Du industry developments Co., Ltd), 10g polyacrylate（The trade mark
941, Guangzhou Sheng Xin Chemical Industry Science Co., Ltd））Premix obtains B liquid, and finally A liquid is slowly added into B liquid, stirs ten minutes
3.0g crosslinking agents are added in afterwards（The trade mark is LF-8500, Fu Neng resins Co., Ltd of Linan City）, added in after continuing stirring ten minutes
The first matting agents of 2.5g（The trade mark is 14808-60-7, and Shanghai is then into Chemical Co., Ltd.）Bottom coating fluid is made.
The preparation of backing layer coating fluid：
First by the second auxiliary agent of 10g deionized waters and 4g（Levelling agent, trade mark PE-100, Guangzhou Heng Yu Chemical Co., Ltd.s）
8g antistatic agents are slowly added to after 2min is mixed（The trade mark is SN, Tong Lin chemical products Co., Ltd of Zhengzhou City）, then will
35g deionized waters and 40g resins（20g polyester（The trade mark is 3300S#, Dongguan City Wan Jie Chemical Co., Ltd.s）, 20g polyurethane
（The trade mark is 901, Xiamen Li get Wei Chemical Co., Ltd.s））2.5g crosslinking agents are slowly added to after premix stirring 2min（The trade mark is LF-
8500, Fu Neng resins Co., Ltd of Linan City）B liquid is made, finally A liquid is slowly added into B liquid, stirring adds in after ten minutes
The second matting agents of 4g（2g polymethyl methacrylates（The trade mark is HY-690, Shenzhen sea powder spreading body Science and Technology Ltd.）, 2g silicon
Colloidal sol（The trade mark is CT-199, the prosperous safe micro-nano chemical plant in Shouguang City of Shandong Province））, backing layer coating fluid is made.
It is coated with the coating fluid of above-mentioned preparation online on the film support surface that thickness is 175 μm, obtains bottom and backing layer,
The thickness of bottom is 0.7 μm, and the thickness of backing layer is 2.5 μm.Finally obtain a kind of dry type medical film polyester film base.
Embodiment 5
The preparation of bottom coating fluid：
First by the first auxiliary agent of 10g deionized waters and 5g（Surfactant, trade mark FES-993, the triumphant petrochemical industry work in Guangzhou have
Limit company）Premix obtains A liquid, then by 30g deionized waters and 55g adhesives（22g styrene-butadiene latexes (trade mark SD332N, bar
Si Fu), 22g polyvinyl alcohol (trade mark 1788, Shanghai Kai Du industry developments Co., Ltd), 11g polyacrylate（The trade mark
941, Guangzhou Sheng Xin Chemical Industry Science Co., Ltd））Premix obtains B liquid, and finally A liquid is slowly added into B liquid, stirs ten minutes
4g crosslinking agents are added in afterwards（The trade mark is LF-8500, Fu Neng resins Co., Ltd of Linan City）, 3.0g is added in after continuing stirring ten minutes
First matting agent（The trade mark is 14808-60-7, and Shanghai is then into Chemical Co., Ltd.）Bottom coating fluid is made.
The preparation of backing layer coating fluid：
First by the second auxiliary agent of 10g deionized waters and 5g（Levelling agent, trade mark PE-100, Guangzhou Heng Yu Chemical Co., Ltd.s）
10g antistatic agents are slowly added to after 2min is mixed（The trade mark is SN, Tong Lin chemical products Co., Ltd of Zhengzhou City）, then will
30g deionized waters and 45g resins（22.5g polyester（The trade mark is 3300S#, Dongguan City Wan Jie Chemical Co., Ltd.s）, the poly- ammonia of 22.5g
Ester（The trade mark is 901, Xiamen Li get Wei Chemical Co., Ltd.s））3.5g crosslinking agents are slowly added to after premix stirring 2min（The trade mark is
LF-8500, Fu Neng resins Co., Ltd of Linan City）B liquid is made, finally A liquid is slowly added into B liquid, after stirring ten minutes
Add in the second matting agents of 15g（7.5g polymethyl methacrylate（The trade mark is J-592, Guangzhou Xing Jia Chemical Co., Ltd.s）、
7.5g Ludox（The trade mark is 25ST, Shanghai Chemical Co., Ltd. of Hang Seng））, backing layer coating fluid is made.
It is coated with the coating fluid of above-mentioned preparation online on the film support surface that thickness is 250 μm, obtains bottom and backing layer,
The thickness of bottom is 0.8 μm, and the thickness of backing layer is 3.0 μm.Finally obtain a kind of dry type medical film polyester film base.
Comparative example 1
Bottom coating fluid first by way of online double spread is uniformly coated on to the two sides of film support, is made one
Kind dry type medical film polyester film base.
Properties test method is as follows：
（1）Adhesive force is tested：Testing example round floor is to the adhesive force of medical film thermographic layer, with rectangular coating
Device is put into after the imaging layer liquid of 10-20 μm of thickness is applied to the round floor of embodiment polyester film in baking oven, in 100 DEG C of condition
Lower baking 1h then takes out print and carries out final adhesive force test, and the method for clicking is graded：
◆：After firmly rubbing print, imaging layer is not fallen off；
◇：After firmly rubbing print, imaging layer slightly comes off；
×:After firmly rubbing print, imaging layer large area comes off；
（2）Backing layer resistance value test method：GB/T1410-2006；
（3）Backing layer crosses machine test method：In film printing, it is then zero to cross machine adhesion；Adhesion then for ×.
（4）Backing layer surface roughness test method：It is tested using TR200 surfagauges.
Table 1
From above table（1）In as can be seen that the present invention in film support and thermographic layer adhesive force it is more excellent
It is different, and have excellent antistatic performance and smooth performance, adhesion during film printing has good machine excessively, comprehensive
It is more excellent to close performance.
Claims (8)
1. a kind of dry type medical film polyester film base, which is characterized in that including film support (1), bottom (2), backing layer
(3), which is characterized in that the bottom (2) and backing layer (3) are respectively coated by online coating technique in film support (1)
Two sides；
The thickness of the bottom (2) is 0.1 μm~1.0 μm, and the thickness of the backing layer (3) is 0.2 μm~5.0 μm；
The component that the backing layer (3) forms containing following weight percent：
Resin 8%~45%
Crosslinking agent 0.5%~3.5%
Second matting agent 2%~15%
Second auxiliary agent 2%~5%
Antistatic agent 4%~10%
Deionized water 40%~60%；
Second matting agent spreads out for Ludox, polymethyl methacrylate, fluoropolymer, long-chain fatty acid ester or silicone
One or more of biology, polymethyl methacrylate grain size be 0.5 μm~5 μm, the Ludox grain size for 0.01 μm~
1.0 μm, second auxiliary agent be levelling agent, one kind in surfactant, polyacrylic acid or carboxymethyl cellulose.
2. dry type medical film polyester film base according to claim 1, which is characterized in that the bottom (2) containing with
The component of lower weight percent composition：
Adhesive 5%~55%
Crosslinking agent 0.3%~4%
First matting agent 0.3%~3%
First auxiliary agent 3%~5%
Deionized water 40%~85%.
3. dry type medical film polyester film base according to claim 2, which is characterized in that described adhesive for polyester,
Polyvinyl alcohol, polyacrylate, polyurethane, MS modified silanes, epoxy resin, gelatin, styrene-butadiene latex or phenolic aldehyde-epoxy type change
One or more of multi-component adhesive of property.
4. dry type medical film polyester film base according to claim 3, which is characterized in that first matting agent is silicon
Either polymethyl methacrylate first auxiliary agent is ionic surfactant or non-ionic surfactant to colloidal sol
Agent.
5. dry type medical film polyester film base according to claim 4, which is characterized in that the antistatic agent is poly- thiophene
Fen Polymer-metallic Catalyst, cationic antistatic agent.
6. dry type medical film polyester film base according to claim 5, the resin is polyester, polyurethane, polypropylene
One or more of acid esters.
7. dry type medical film polyester film base according to claim 6, the second matting agent surface topography is rule
Spherical or irregular shape, the roughness value Ra of the backing layer is at least more than 0.05.
8. a kind of method of dry type medical film polyester film base prepared as described in claim 1 to 7 any claim,
It is characterized in that, carries out as follows：
First by film support on coating machine after sided corona treatment, the mode that is coated with intaglio plate coating or Mayer, by bottom
Coating fluid and backing layer coating fluid are uniformly coated on film support surface by way of online double spread, and bottom and the back of the body is made
Layer, winds after at least drying of 30s of 100 DEG C of hot winds, and the dry type medical film polyester film base is made.
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