WO2019116951A1 - 高分子薄膜の製造装置および製造方法 - Google Patents

高分子薄膜の製造装置および製造方法 Download PDF

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Publication number
WO2019116951A1
WO2019116951A1 PCT/JP2018/044431 JP2018044431W WO2019116951A1 WO 2019116951 A1 WO2019116951 A1 WO 2019116951A1 JP 2018044431 W JP2018044431 W JP 2018044431W WO 2019116951 A1 WO2019116951 A1 WO 2019116951A1
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Prior art keywords
mold
polymer
thin film
polymer thin
roll
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PCT/JP2018/044431
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English (en)
French (fr)
Japanese (ja)
Inventor
善章 冨永
箕浦　潔
惠太 和田
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東レ株式会社
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Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to JP2018564422A priority Critical patent/JP7156036B2/ja
Priority to KR1020207016664A priority patent/KR102571964B1/ko
Priority to CN201880070986.6A priority patent/CN111295274A/zh
Publication of WO2019116951A1 publication Critical patent/WO2019116951A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • B29C33/405—Elastomers, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/38—Moulds, cores or other substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/42—Removing articles from moulds, cores or other substrates

Definitions

  • the present invention relates to a method and an apparatus for producing a polymer thin film having a specific shape by applying a polymer material onto a mold having a specific shape and then peeling and recovering it.
  • Patent Document 1 discloses a method for producing a polymer thin film in which the following steps are sequentially performed.
  • a multifunctional molecule is adsorbed to a region of arbitrary shape at the interface of the substrate with the liquid phase.
  • the adsorbed polyfunctional molecules are polymerized and / or crosslinked to form a thin film of a polymer.
  • C Peeling the formed thin film from the substrate.
  • Patent Document 2 discloses a method for producing a thin film-like polymer structure having a functional substance on the surface (A surface) and the back surface (B surface) of a film. More specifically, for example, a method of manufacturing a thin film-like structure in which the following steps are sequentially performed is disclosed.
  • a multifunctional molecule is adsorbed to a region of arbitrary shape at the interface of the substrate with the liquid phase.
  • the adsorbed polyfunctional molecule is polymerized and / or crosslinked to form a polymer thin film.
  • C After a functional substance is bonded to the A side of the formed thin film, a soluble water-soluble polymer film is further formed thereon.
  • An object of the present invention is to provide a method for continuously and uniformly producing a polymer thin film having a specific shape without using a process soluble polymer or a special solvent, and a production apparatus for realizing the method. It is.
  • the apparatus for producing a polymer thin film according to the present invention is a production apparatus for producing a polymer thin film having a specific shape, in which unevenness is formed on the surface, and the shape of the top surface of the convex portion is the specific shape.
  • a drying unit for applying a coating material containing a molecular material a drying unit located downstream of the coating unit in the transport direction and drying the coated polymer material to form a polymer film, and the drying unit And a peeling unit for obtaining the polymer thin film by peeling the polymer film from the top surface of the convex portion by extending the mold or expanding or retracting the mold once or more. Peeled from the top surface of the convex portion, and a, a recovery unit for recovering the polymer thin film.
  • the manufacturing method of the present invention is a manufacturing method for manufacturing a polymer thin film having a specific shape, in which unevenness is formed on the surface, and the shape of the top surface of the convex portion is the specific shape.
  • the mold having the above-mentioned configuration is transported, and a coating material containing a polymer material is applied to the surface on which the unevenness is formed so as to cover the top surface of the convex portion of the transported mold, and then the coated high
  • the molecular material is dried to form a polymer film, and then the mold is stretched or stretched one or more times, and the dried polymer film is peeled from the top surface of the convex portion to obtain the polymer thin film. And the polymer thin film peeled off from the mold is recovered.
  • the polymer thin film can be recovered in a dried state.
  • a sacrificial film is applied as a water-soluble polymer film, and then the process of dissolving the water-soluble polymer film and removing the polymer film can be omitted, so cost reduction and productivity of polymer film production can be achieved. Can be improved.
  • the present invention does not have a step of dissolving the water-soluble polymer membrane, and can be recovered in a dried state, so that it can be handled as fine particles, and the application can be expanded.
  • FIG. 1 is a schematic cross-sectional view of the polymer thin film production apparatus of the present invention.
  • FIG. 2 is a schematic view of an example of a mold applied to the present invention.
  • FIG. 2A shows a mold in which the top surface of the convex portion is circular
  • FIG. 2B shows a mold in which the top surface of the convex portion is polygonal.
  • FIG. 3 is a schematic cross-sectional view of the peeling unit of the polymer thin film production apparatus of the present invention.
  • FIG. 4 is a schematic cross-sectional view of an apparatus for producing a polymer thin film of another embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view of an apparatus for producing a polymer thin film of another embodiment of the present invention.
  • FIG. 1 is a schematic cross-sectional view of the polymer thin film production apparatus of the present invention.
  • FIG. 2 is a schematic view of an example of a mold applied to the present invention.
  • FIG. 2A shows a
  • FIG. 6 is a schematic cross-sectional view of an apparatus for producing a polymer thin film of another embodiment of the present invention.
  • FIG. 7 is a schematic view from the surface of an example of an apparatus for producing a mold applied to the production of a polymer thin film having a specific shape according to the present invention.
  • FIG. 8 is a schematic cross-sectional view of an example of an apparatus for producing a mold applied to the production of a polymer thin film having a specific shape according to the present invention.
  • FIG. 9 is a schematic view showing the behavior of the polymer thin film and the mold in the peeling unit used in the present invention.
  • FIG. 10 is a photograph of the laminate of the mold and the polymer thin film obtained in the middle stage of the production method of the present invention observed by an electron microscope.
  • FIG. 11 is a photograph of the polymer thin film having a specific shape manufactured according to Example 1 observed by an electron microscope.
  • FIG. 12 is a photograph of the polymer thin film having a specific shape manufactured according to Example 2 observed
  • An apparatus for producing a polymer thin film having a specific shape of the present invention comprises at least the following devices (a) to (f).
  • B Mold supply means for supplying and transporting the mold.
  • C A coating unit for coating a coating material containing a polymer material on the surface on which the unevenness is formed so as to cover the top surface of the convex portion of the mold transported by the mold supply means.
  • a drying unit which is downstream of the coating unit in the transport direction and which dries the coated polymer material to form a polymer film.
  • the polymer film material is peeled off from the top surface of the convex portion by extending the mold or stretching the mold once or more than the drying unit downstream of the drying unit to obtain the polymer thin film Peeling unit.
  • FIG. 1 is a schematic view of an example of the apparatus for producing a polymer thin film according to the present invention, viewed from a cross section.
  • FIG. 2 is a schematic view of an example of a mold applied to the present invention.
  • FIG. 2A is a schematic view of the mold in which the top surface of the mold is circular
  • FIG. 2B is a top view of the convex portion as viewed from the surface and cross section of the mold.
  • the top surface 15a of the convex portion 15 having a concavo-convex structure on the surface of the mold 11 has a shape corresponding to the specific shape in order to make the polymer thin film 16 to be finally obtained a specific shape.
  • the manufacturing apparatus 10 of the polymer thin film 16 applies the coating material 13 containing the polymer material so as to cover the top surface 15 a of the convex portion 15 of the mold 11 having elasticity, and the coating material 13 is dried to increase the height.
  • the polymer film 14 is peeled off by the expansion and contraction of the mold 11 having elasticity to obtain the polymer thin film 16, and the recovery unit 60 specifies the same shape as the top surface 15 a of the convex portion 15
  • the polymer thin film 16 having a shape is recovered.
  • the coating material 13 containing a polymer material may be one in which the polymer material is dissolved in a solvent, or one in which the polymer material is melted by heating. It is preferable to select one in which a polymer material is dissolved with a solvent, because it is easy to adjust the viscosity and solid content concentration of the coating material 13 in consideration of the easiness of coating.
  • the apparatus 10 for producing a polymer thin film 16 of the present invention comprises a mold 11 having roll elasticity, a mold supply means 20 for driving and conveying the mold 11, and a coating material 13 on the surface of the mold 11. It has a coating unit 30 for coating, a drying unit 40 for drying the coated coating material 13, a peeling unit 50 for peeling the polymer film 14 from the surface of the mold 11, and a recovery unit 60 for collecting the peeled polymer thin film 16 ing.
  • the outline of each configuration is as follows.
  • the mold 11 having roll-like stretchability has irregularities formed on the surface, and the top surface 15a of the convex portion 15 has a specific shape of a circle (see FIG. 2A) or a polygon (see FIG. 2B). have.
  • the mold 11 is made of a material having chemical resistance to chemicals such as a solvent used for the coating material 13 and preferably has a uniform thickness in order to apply the coating amount 13 uniformly.
  • chemical resistance means that, in a test according to JIS-K-6258 (2003 version), the volume change rate when the mold 11 is immersed in a chemical used for the coating material 13 at normal temperature for 72 hours Is less than 5%. If there is no chemical resistance, the surface of the mold 11 is swelled by a chemical and the peeling of the polymer thin film 16 may be inhibited, or the mold 11 may be broken when the mold 11 expands or contracts. Is preferred.
  • the mold supply means 20 includes an unwinding roll 21 for unwinding the mold 11 wound in a roll, a winding roll 22 for winding the unwound mold, and a driving roll 23 for conveying the mold 11 at a constant speed, 24.
  • driving means for rotating each roll, and guide rolls 21a, 25, 26, 22a are provided so as to fit the mold conveyance path. It is preferable that the unwinding roll 21 and the winding roll 22 can adjust the conveyance tension, and it is preferable to control the tension so that the amount of expansion of the mold 11 in the conveyance direction during conveyance is 10% or less. Adjustment of the transport speed of the mold 11 is performed by a drive roll 23 disposed opposite to the nip roll 53 and a drive roll 24 disposed opposite to the nip roll 54.
  • the coating unit 30 may be any unit capable of uniformly and continuously coating the coating material 13 uniformly and continuously in the width direction of the mold 11.
  • it may be a combination of a discharger including a slit die 31 as shown in FIG. 1 and a liquid feeding mechanism capable of continuously supplying a constant amount of coating material.
  • the support roll 32 may be disposed on the opposite side of the application surface of the mold 11. It is also preferable to provide a position adjustment mechanism that can adjust the position of the slit die 31 with high resolution on the left and right.
  • drying unit 40 in order to dry the applied coating material 13 in a short time, it is preferable to include heating means such as hot air or far infrared rays.
  • heating means such as hot air or far infrared rays.
  • a local exhaust system may be provided to recover or exhaust the volatilized solvent.
  • the peeling unit 50 functions as a tension blocking mechanism that blocks tension applied to the mold 11 in the peeling section, which is a conveyance path connecting the nip roll 53, the tension adjustment roll 55, and the nip roll 54, the drive roll 23, the nip roll 54. And a drive roll 24 and a tension adjustment roll 55 which functions as a tension adjustment mechanism for adjusting the tension for stretching the mold 11 to an elongation required to peel the polymer film 14 from the mold 11. It is preferable that the tension generated by the mold supply unit 20 be interrupted by nipping by the nip roll 53 and the drive roll 23 and the nip roll 54 and the drive roll 24 which function as a tension blocking mechanism.
  • the length of the mold 11 can be extended to an amount necessary to peel the polymer film 14 from the mold 11.
  • the tension adjusting roll 55 applies tension to the mold 11 gripped by the nip roll 53 and the drive roll 23 and the nip roll 54 and the drive roll 24 from the surface of the mold 11 opposite to the surface on which the application material is applied.
  • a mechanism for feeding and stretching the mold 11 is preferred. According to the inventors' investigation, it is preferable to extend the length of the mold 11 to three or more times the length of the peeling section before applying tension.
  • the recovery unit 60 includes means for recovering the polymer thin film 16 peeled off from the surface of the mold 11.
  • the recovery means one using a suction nozzle 61 connected to a negative pressure generator 62 such as a vacuum pump is preferable.
  • a method of flowing a liquid on the surface of the mold 11 and recovering the polymer thin film 16 so as to be dispersed in the liquid may be used.
  • a collection material 63 such as a non-woven fabric or a membrane filter flows in a path along which the polymer thin film 16 flows. It is preferable to install it.
  • a series of manufacturing operations by the polymer thin film 16 manufacturing apparatus 10 are as follows.
  • the mold 11 having elasticity is unwound from the unwinding roll 21, passes through the path of the coating unit 30, the drying unit 40, the peeling unit 50, and the recovery unit 60, and is wound around the winding roll 22.
  • the mold 11 is given a constant tension necessary for conveyance by the mold supply means 20, and is conveyed at a predetermined speed by the rotation of the drive roll 23 and the drive roll 24.
  • a coating material 13 containing a polymer material is applied so as to cover the top surface 15 a of the convex portion 15 of the mold 11 by the application unit 30.
  • the drying unit 40 After application, by passing through the drying unit 40, the solvent remaining in the coating material 13 is volatilized, and a polymer film having a specific shape of the top surface 15a on the top surface 15a of the convex portion 15 of the mold 11 14 are formed. Thereafter, the mold 11 on which the polymer film 14 is formed is pinched by the nip roll 53 and the drive roll 23 of the peeling unit 50 and the nip roll 54 and the drive roll 24 so that the mold 11 is blocked from the transport tension.
  • the tension adjustment roll 55 applies tension. The tensioned mold 11 elongates in response to the tension.
  • the polymer film 14 can not follow the amount of elongation, and the mold 11 and the polymer film 14 Peeling occurs at the laminated interface of (i.e., the interface between the polymer film 14 and the mold 11), and the polymer thin film 16 floats from the surface of the mold 11. According to the study of the inventors, if the mold 11 is stretched by 300% or more, the polymer film 14 can be almost certainly peeled off from the mold 11.
  • the suction nozzle 61 controlled to a negative pressure by a negative pressure generator 62 such as a vacuum pump is installed on the surface of the mold 11 in the peeling unit 50, the polymer thin film 16 peeled from the surface of the mold 11 is It will be attracted to the lower pressure side, and will be captured by the non-woven fabric shaped collecting material 63 installed between the suction nozzle 61 and the negative pressure generator 62.
  • the mold 11 from which the polymer thin film 16 is recovered from the surface is taken up by the take-up roll 22 as it is. The above operation is performed continuously.
  • a polymer thin film 16 having a specific shape can be formed.
  • the coating material 13 containing a polymer material to the surface of the mold 11 in a state where the elongation of the mold 11 having elasticity is 10% or less, the specific shape of the top surface 15 a of the convex portion 15 of the mold 11 It can be accurately transferred to a polymer material.
  • the polymer material can be applied by an amount necessary for forming the polymer thin film 16, so that the material cost can be reduced.
  • the mold 11 is expanded and contracted in the peeling unit 50, and the polymer film 14 is peeled from the mold 11 to form the polymer thin film 16, and the polymer thin film 16 is collected by suction in the collection unit 60. Since the molecular thin film 16 is in a dry state, it is easy to handle and the application can be expanded.
  • the mold 11 wound around the winding roll 22 may be controlled so as to replace the mold 11 at the time of deterioration or when a defect occurs, and the cost of the mold 11 can be reduced.
  • the mold 11 has a fine uneven structure processed on its surface, has stretchability, and can be wound in a roll.
  • the amount of elongation in the direction parallel to the transport direction of the mold 11 is preferably 200% or more, but in consideration of the allowable amount of elongation until breakage, the stretch rupture rate is more preferably 300% or more.
  • the expansion / contraction fracture rate is a value defined in JIS-C-2151 (2006 edition), and when a tensile force is applied, the length of the mold 11 at the time of breakage of the mold 11 is It is a value divided by the length of the mold 11 before applying a tensile force.
  • the rate of recovery representing the rate of dimensional recovery after expansion and contraction
  • the rate of recovery after stretching to an elongation of 300% is preferably 95% or more, more preferably 98% or more.
  • the mold 11 can be used repeatedly because the recovery rate after elongation is high.
  • the concavo-convex structure of the surface one in which the convex portions 15 are disposed by close packing is suitable. This is because the area occupancy of the top surface 15a of the convex portion 15 with respect to the total area of the mold 11 is increased, so that when the coating material 13 is applied, more polymer thin films 16 can be obtained.
  • top surface 15a of the convex part 15 As a shape of the top surface 15a of the convex part 15, circular (FIG. 2 (a)) or a polygon (FIG. 2 (b)) etc. can be illustrated.
  • the shape of the top surface 15a does not have to be geometrically perfect in view of the surface on which the concavities and convexities are formed, as long as it can be recognized as being similar to each shape, so it is substantially circular or substantially polygonal.
  • the shape of the convex portion 15 is preferably a pillar having an area of the top surface 15a of 3000 to 10000 ⁇ m 2 and a height of 10 to 200 ⁇ m, and more preferably an area of 5000 to 8000 ⁇ m 2 of the top surface 15 a and a height of 50 to 100 ⁇ m
  • they are arranged in close-packed form as viewed from the surface on which the concavities and convexities are formed.
  • the width of the concave portions (the distance between the adjacent convex portions 15) in the close-packed arrangement is preferably reduced within the range in which the concavo-convex structure can be processed, preferably 50 ⁇ m or less, and more preferably 20 ⁇ m or less.
  • the material of the mold 11 to be applied may be any of a thermosetting resin, a thermoplastic resin, and a photocurable resin, but in addition to a high stretchability and a recovery rate, a thermosetting resin having a relatively easy imparting of a concavo-convex structure Resin is suitable.
  • a thermosetting resin having a relatively easy imparting of a concavo-convex structure Resin
  • silicone rubber, urethane rubber, nitrile rubber, fluororubber, ethylene propylene rubber, chloroprene rubber, polyurethane, styrene butadiene rubber, etc. are suitably used, but considering the chemical resistance to the chemicals used for the coating material 13, it is suitable It is more preferable to select a suitable material.
  • the mold supply means 20 includes an unwinding roll 21 for unwinding the mold 11 from the mold 11 wound in a roll, a winding roll 22 for winding the unwinded mold 11, and the mold 11 at a constant speed.
  • Drive rollers 23 and 24 for carrying, driving means for rotating the respective rolls (not shown), and guide rollers 21a, 25, 26 and 22a are provided so as to fit the carrying route of the mold.
  • the transport tension applied to the mold 11 since the mold 11 has elasticity, it is preferable that the transport tension applied to the mold 11 can be adjusted in order to prevent the mold 11 from being unnecessarily stretched by tension.
  • the adjustment of the transport tension is preferably adjustable in the range of 1 N to 100 N with a resolution of 0.1 N.
  • a drive roll 23 and a drive roll 24 are provided.
  • the drive roll 23 and the drive roll 24 are disposed to face the nip roll 53 and the nip roll 54 respectively, and are nipped by the nip roll 53 and the nip roll 54 via the mold 11 to transmit the driving force to the mold 11 and set.
  • the mold 11 can be transported at a fixed speed.
  • the drive means of the drive roll 24 is connected to the end of the drive roll 23 by a chain or a belt, etc. and can be rotated in conjunction with the drive roll 23 or a motor etc. capable of synchronizing the speed with the drive roll 23 It is preferable to use it so that it can rotate independently.
  • the drive roll 23 is connected to drive means such as a motor (not shown) and is rotatable while controlling the speed. It is also possible to transport at a speed of preferably 1 to 30 m / min, and to increase productivity while applying the coating material 13 containing a polymer material with high accuracy.
  • a preferred embodiment of the mold meandering suppression mechanism is, as shown in FIG. 1, an end detection sensor 28 for detecting the position of the end of the mold 11 in the transport path of the mold 11, and an unwinding roll based on the detected value.
  • a controller 27 for adjusting the transfer position of the mold 11 by controlling the movement of the winding roll 21 and the winding roll 22 is provided one by one or plural.
  • the coating unit 30 is disposed upstream of the drying unit 40 in the transport direction in the process of transporting the mold 11, and includes a slit die 31 and a coating material supply mechanism connected thereto.
  • the slit die 31 is opposed to the surface of the mold 11 on which the surface concavo-convex structure is formed so that the coating material 13 containing a polymer material can be applied.
  • the distance between the slit die 31 and the mold 11 can be controlled so that the distance between the discharge surface of the slit die 31 and the top surface 15 a of the convex portion 15 of the surface of the mold 11 is 10 ⁇ m to 500 ⁇ m. Is preferred.
  • the accuracy of the distance in the direction perpendicular to the transport direction is preferably 10 ⁇ m or less, more preferably 3 ⁇ m or less.
  • the straightness and rotational runout of the support roll 32 are preferably 5 ⁇ m or less, more preferably 1 ⁇ m or less.
  • a coating material supply mechanism it is sufficient to continuously and uniformly carry out the liquid feeding according to the target film thickness.
  • a syringe pump or a tube pump or constant pressure delivery using compressed air or a pressure control mechanism may be selected, but application when the transport speed of the mold 11 is changed It is preferable to select a quantitative feed that allows the amount of delivery of the material 13 to be easily calculated.
  • the peeling unit 50 is disposed downstream of the drying unit 40 in the conveyance direction in the mold conveyance process.
  • the peeling unit 50 adjusts the tension of the mold in the peeling section, and a tension blocking mechanism that cuts tension propagation from the upstream side of the peeling direction from the peeling unit 50 and tension propagation from the downstream side of the conveying direction from the peeling unit 50 And a tension adjustment mechanism.
  • the tension blocking mechanism comprises a nip roll 53, a drive roll 23, a nip roll 54 and a drive roll 24. As shown in FIG. 3A, it is preferable to interrupt the conveyance tension generated by the mold supply means 20 by sandwiching the mold 11 at two points, the nip roll 53 and the drive roll 23, and the nip roll 54 and the drive roll 24.
  • the tension adjustment mechanism is configured of a tension adjustment roll 55.
  • the tension adjustment roll 55 is preferably a mechanism capable of extending the length of the mold 11 in the peeling section to three or more times the length of the peeling section before tension application.
  • the tension adjustment roll 55 preferably has a mechanism for pushing up the mold 11 gripped by the nip roll 53 and the nip roll 54 from the surface opposite to the application surface.
  • a mechanism in which a tension adjustment roll 55 which can freely rotate is connected to the tip of the rod of the air cylinder is preferable.
  • an air cylinder By applying an air cylinder, it is possible to control tension, that is, to control the amount of mold extension by controlling the stroke of the air cylinder, so a complicated mechanism is not necessary, and it is necessary for tension control. Control mechanism is facilitated.
  • the air cylinder a double-acting type air cinder is preferably used. In order to peel off the polymer film 14 efficiently from the surface of the mold 11, it is preferable to perform one or more expansion and contraction operations of stretching the mold 11 to 300% or more and then shrinking to 100% or less. If an air cylinder is used, this telescopic movement can be repeated at high speed, so that extremely effective peeling is performed.
  • the material of the tension adjustment roll 55 may be either metal or nonmetal, but it is preferable to select a material that reduces the friction with the mold 11.
  • the surface roughness is preferably defined in JIS B 0601 (2001 edition) and has an arithmetic mean roughness Ra of 1.6 ⁇ m or less. When Ra is 1.6 ⁇ m or less, there is no concern that the surface shape of the tension adjustment roll 55 is transferred to the back surface of the mold 11 when tension is applied.
  • the processing accuracy of the nip rolls 53 and 54 and the drive rolls 23 and 24 is preferably 0.03 mm or less in cylindricality tolerance defined in JIS B 0621 (1984 version) and 0.03 mm or less in circumferential deflection tolerance. . Since a partial gap can not be formed between the drive rolls 23 and 24 and the nip rolls 53 and 54 when the pressure is 0.03 mm or less, the laminate of the mold 11 and the polymer film 14 is uniform in the width direction. It is possible to press with the same force and transport and tension control work well. Moreover, as for the surface roughness of each roll, that whose arithmetic mean roughness Ra is 1.6 micrometers or less defined by JISB0601 (2001 edition) is preferable. When Ra is 1.6 ⁇ m or less, there is no concern that the surface shape of each roll is transferred to the surface of the polymer film 14 or the back surface of the mold 11 at the time of pressing.
  • the material of the nip rolls 53 and 54 and the drive rolls 23 and 24 may be either metal or nonmetal, but in the case of nonmetal, for example, in the case of using rubber, silicone rubber or EPDM (ethylene, propylene, Diene rubber), neoprene, CSM (chlorosulfonated polyethylene rubber), urethane rubber, NBR (nitrile rubber), evonite and the like can be used.
  • a hard pressure-resistant resin eg, polyester resin
  • the rubber hardness of the elastic body is preferably in the range of 70 to 97 ° according to ASTM D2240: 2005 (Shore D) standard.
  • the hardness is 70 ° or more
  • the deformation amount of the elastic body does not become too large, and the pressure contact width with the polymer film 14 does not become too large, so that the excessive friction force is not generated in the polymer film 14.
  • the polymer film 14 peels off from the mold 11.
  • the hardness is 97 ° or less
  • the amount of deformation of the elastic body is not too small, so that an appropriate frictional force is generated with an appropriate pressure contact width, so that tension control and conveyance can be performed.
  • the recovery unit 60 preferably includes one or more suction nozzles 61 connected to a negative pressure generator 62 such as a vacuum pump.
  • the form of the suction nozzle 61 is not particularly limited, but in order to suction the polymer thin film 16 efficiently at a high flow rate, it is preferable to have a plurality of nozzles with small suction ports.
  • a collection material 63 for collecting the polymer thin film 16 collected by suction.
  • the form of the collecting material 63 is not particularly limited, but the pore size is smaller than the specific shape of the polymer thin film 16, and in order to reduce pressure loss, a collecting material having a high open area ratio is preferable. More specifically, it is preferable to apply a membrane filter, a non-woven filter or the like.
  • FIG. 4 is a schematic cross-sectional view of another embodiment of the polymer thin film production apparatus of the present invention.
  • the apparatus 70 for manufacturing a polymer thin film further includes another coating unit 71 and a drying unit 75 between the drying unit 40 and the peeling unit 50.
  • the coating unit 71 and the drying unit 75 on the downstream side in the transport direction are further Another polymer film 73 can be laminated on top.
  • the polymer material contained in 74 By making the polymer material contained in 74 a different type, it is possible to obtain a laminate of polymer thin films composed of different polymer materials.
  • the combination of the application unit and the drying unit to be added may be added according to the number of polymeric materials to be laminated, and there is no particular limitation.
  • the polymer materials of all layers may be different types of polymer materials, and only the polymer materials of adjacent layers may be different types of polymer materials. It is also good.
  • FIG. 5 is a schematic cross-sectional view of still another embodiment of the polymer thin film production apparatus of the present invention.
  • the coating base material 83 to which the coating material 13 is applied instead of directly applying to the mold 11 is combined with the mold 11 with the nip roll 33 and the drive roll 34.
  • the application material 13 is transferred to the surface of the mold 11 and applied by holding the pressure at this time. That is, the coating unit 30 of the polymer thin film production apparatus 80 shown in FIG. 5 includes the slit die 31, the coating base unwinding roll 81, the coating base winding roll 82, the coating base 83, the nip roll 33, and
  • the drive roll 34 is configured.
  • the coating substrate 83 unwound from the coating substrate unwinding roll 81 is coated with the coating material 13 by the slit die 31 on the surface facing the mold 11, and then the nip roll 33 and the driving roll 34 together with the mold 11.
  • the coating material 13 is transferred to the surface of the mold 11 by being pressed by the
  • the coating substrate 83 having the coating material 13 transferred to the mold 11 is wound around the coating substrate winding roll 82.
  • the mold 11 with the coating material 13 transferred to the top surface 15a of the convex portion 15 peels off the polymer film 14 by the peeling unit 50, and the polymer thin film 16 is recovered by the recovery unit 60. , Taken up by the take-up roll 22.
  • the take-up roll 22 Taken up by the take-up roll 22.
  • FIG. 6 is a schematic cross-sectional view of still another embodiment of the polymer thin film production apparatus of the present invention.
  • the mold 11 in the polymer thin film 16 manufacturing apparatus 90, the mold 11 can be transported and the polymer thin film 16 can be peeled off without giving friction from the nip roll to the surface of the polymer thin film 16.
  • Suction rolls are used as the drive roll 91 and the tension adjustment roll 92, and a mechanism capable of adsorbing and conveying the surface opposite to the application surface of the mold 11 is provided.
  • the peeling unit 50 the transport tension in the peeling section is blocked by the suction of the mold 11 between the drive roll 91 and the tension adjusting roll 92.
  • the tension adjustment roll 92 is driven to rotate at a rotational speed faster than the drive roll 91 which is driven to rotate at the mold conveyance speed, so that the mold is rotated between the drive roll 91 and the tension adjustment roll 92.
  • Tension is given, and the mold 11 is stretched by an amount of elongation according to the speed difference between the drive roll 91 and the tension adjustment roll 92.
  • the mold 11 can be stretched by extending the distance between the drive roll 91 and the tension adjustment roll 92 during conveyance of the mold 11. it can.
  • the mold 11 from which the polymer thin film 16 has been recovered by the recovery unit 60 passes through the tension adjustment roll 92, and is again subjected to the transport tension from the winding roll 22, and is taken up along the guide rolls 22a and 22b.
  • Rolled up to 22 conveyance, tension blocking, and mold expansion and contraction can be performed without giving friction to the surface of the polymer thin film 16, so that damage and shape collapse of the polymer thin film 16 due to friction with the roll during mold expansion and contraction. It can prevent.
  • FIG. 7 is a cross-sectional view showing an example of an apparatus for manufacturing the roll-shaped mold 11 made of a thermosetting resin using the endless belt-shaped mold 101.
  • a coating unit 130 is used on the surface of an endless belt-like mold 101 suspended and supported while being heated and suspended around the first heating roller 110 and the second heating roller 120. And the thermosetting resin 102 is applied.
  • the applied thermosetting resin 102 is pressed by the nip roll 140, and comes into close contact with the substrate 103 supplied from the application surface side of the thermosetting resin 102, and at the same time, the reverse structure of the surface concavoconvex structure of the mold 101 is on the surface. Transcribed. Then, it is conveyed in close contact with the mold 101, and heat curing proceeds by heating.
  • the laminate 104 of the thermosetting resin 102 and the substrate 103 is peeled off from the mold 101 by the peeling roll 150.
  • the substrate 103 is wound around the winding roll 160, and the mold 11 made of a thermosetting resin is wound around the winding roll 170.
  • a roll-shaped mold 11 made of a thermosetting resin is obtained.
  • FIG. 8 is a cross-sectional view showing an example of an apparatus for manufacturing a roll-shaped mold 11 made of a thermoplastic film using an endless belt-shaped mold 201. As shown in FIG.
  • the film 202 is drawn from the unwinding roll 210 and is supplied by the heating roll 220 to the surface of the endless belt-like mold 201 having a heated surface structure.
  • the surface structure of the mold 201 is formed with an uneven structure in which the surface structure of the mold 11 is reversed.
  • the mold 201 is heated by the heating roll 220 just before contacting the film.
  • the film 202 supplied continuously is pressed against the surface structure of the mold 201 by the nip roll 221, and the film 202 is formed with an inverted structure of the surface structure of the mold 201. Thereafter, the film 202 is conveyed to the outer surface position of the cooling roll 230 in a state of being in close contact with the mold 201.
  • the film 202 is cooled by heat conduction through the mold 201 by the cooling roll 230, and is peeled from the mold 201 by the peeling roll 240, and wound around the winding roll 250 as the mold 11.
  • a roll film mold 11 made of a thermoplastic film is obtained.
  • the method for producing a polymer thin film having a specific shape according to the present invention transports a mold having elasticity having a convex / concave formed on the surface, and the top surface of the convex portion having the above-mentioned specific shape.
  • a coating material containing a polymer material is applied to the surface on which the unevenness is formed so as to cover the top surface of the convex portion of the mold, and then the applied polymer material is dried to form a polymer film.
  • a polymer thin film having a specific shape is produced by recovering the polymer thin film having a specific shape.
  • a coating material 13 containing a polymer material is prepared and filled in a tank of coating material supply means connected to the slit die 31.
  • the mold 11 is pulled out from the unwinding roll 21, and is passed along the guide roll 21a, passes through the coating unit 30, the drying unit 40, passes along the guide roll 25, passes through the peeling unit 50 and the recovery unit 60, and is guided.
  • the rollers 26 and 22a are wound by the winding roll 22. At this time, a constant tension necessary for conveyance is applied to the mold 11 by the mold supply means 20.
  • the interval between the discharge tip surface of the slit die 31 and the surface of the mold 11 is set at a predetermined interval, and the condition of liquid feeding of the coating material 13 is set under the condition corresponding to the film thickness. deep.
  • the drying unit 40 is heated at a constant temperature by heating means not shown.
  • the drive rolls 23 and 24 are driven, and the mold 11 is conveyed at a constant speed by narrowing pressure by the nip roll 53 and the drive roll 23 and the nip roll 54 and the drive roll 24 via the mold 11.
  • the coating material supply means of the coating unit 30 is operated to start the feeding of the coating material 13.
  • the coating material 13 containing the polymer material discharged from the discharge port of the slit die 31 is uniformly coated on the top surface 15 a of the convex portion 15 on the surface of the mold 11 and conveyed to the drying unit 40.
  • the solvent remaining inside the coating material 13 gradually evaporates, and when the evaporation of the solvent is completed, a polymer of a specific shape is formed on the top surface 15a of the convex portion 15 of the mold 11.
  • the material is in a state of being laminated as a film.
  • the mold 11 on which the polymer film 14 is formed is conveyed to the peeling unit 50, and is pinched by the two pairs of roll pairs of the nip roll 53 and drive roll 23 and the nip roll 54 and drive roll 24 which are tension blocking mechanisms. In addition, it enters the peeling section where the transport tension is blocked.
  • a tension is applied to the mold 11 from the surface opposite to the application surface of the mold 11 by a tension adjustment roll 55 which is a tension adjustment mechanism so that the mold 11 has an elongation of 300% or more compared to that before tension application. extend.
  • the polymer film 14 is laminated on the surface of the mold 11 whose tension is blocked by the tension blocking mechanism so as to cover the convex portion 15 (FIG. 9A).
  • the tension adjusting roll 55 On the surface of the mold 11 expanded by the tension adjusting roll 55, the polymer film 14 which can not follow the amount of expansion of the mold 11 is lifted, and the polymer thin film 16 is peeled off (FIG. 9 (b)).
  • the polymer thin film 16 peeled off from the mold 11 is sucked by the suction nozzle 61 connected to the negative pressure generator 62 of the collection unit 60 and collected by the collection material 63 installed in the suction path.
  • the mold 11 from which the polymer thin film 16 has been peeled from the surface passes through the nip roll 54, is again subjected to the transport tension by the mold supply means 20, and is wound around the winding roll 22.
  • the polymer material to be applied as the polymer thin film 16 is not particularly limited, but it is preferable to use one that can peel the polymer thin film 16 from the mold 11 by utilizing the difference in elongation / contraction fracture rate between the polymer material and the mold 11. 100% or less is preferable and 50% or less of a polymeric material is more preferable.
  • polyester resins such as polylactic acid, polyglycolic acid, polydioxanone, polycaprolactone and the like
  • Polyether resins such as polyethylene glycol, polymethacrylate resins such as polymethyl methacrylate, polyethyl methacrylate and polyhydroxyethyl methacrylate, cellulose acetate, alginic acid, polysaccharide or polysaccharide esters such as chitosan, polyvinyl acetate, polyvinyl alcohol
  • polymers containing homopolymers selected from polyvinyl resins such as polyvinyl pyrrolidone and / or copolymers containing at least one or more polymers, and from the viewpoint of economy, polylactic acid, polyglycolic acid, polydioxolic acid, and the like.
  • Non, polycaprolactone, polyethylene glycol, polymethyl methacrylate and copolymers thereof are more preferred.
  • biodegradability is not necessarily required.
  • polyester resins such as polyethylene terephthalate, polyethylene-2,6-naphthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene, polystyrene, polypropylene, Polyolefin resins such as polyisobutylene, polybutene and polymethylpentene, polyamide resins, polyimide resins polyether resins, polyesteramide resins, polyetherester resins, acrylic resins, polycarbonate resins, or polyvinyl chloride resins Resins and the like are also suitably used.
  • FIG. 10A is a photograph of a scanning electron microscope in which a region of a laminate of the polymer thin film 16 and the mold 11 is cut away.
  • the polymer thin film 16 is uniformly applied to the top surface 15 a of the convex portion 15 of the mold 11, and the specific shape of the top surface 15 a is accurately transferred.
  • FIG. 10B is a photograph of a scanning electron microscope in which a region of the laminate of the polymer thin film 16 and the mold 11 after expansion and contraction of the mold 11 is cut out.
  • the polymer thin film 16 in which the specific shape is formed is peeled from the surface of the mold by the expansion and contraction of the mold 11.
  • the specific shape of the polymer thin film 16 of the present invention is not particularly limited, but in a figure projected on a two-dimensional plane so as to maximize the area of the specific shape, it is any one of a circle, an ellipse and a polygon. Is preferred.
  • the polymer thin film 16 having a specific shape obtained by the present invention has a minute flat shape generally called flake shape or disk shape, and the polymer thin film 16 is controlled by controlling the cross sectional shape and Young's modulus.
  • the adhesion between the polymer thin films 16 can be strengthened when they overlap, and they do not collapse when an external force is applied, and maintain a stable shape as an aggregate of the polymer thin films 16 it can. Furthermore, since each of them is a thin film, it is excellent in the followability and adhesion to organs such as skin and internal organs.
  • the polymer thin film 16 having a specific shape obtained by the present invention is a medical film such as an internal wound covering, extracorporeal wound covering, adhesion preventing material, etc. utilizing biodegradability. It is suitably used as a member requiring a micron-sized size and a nano-sized thickness, such as external products for skin care such as articles and cosmetic materials utilizing a thin film shape.
  • Example 1 As a material of the roll-shaped mold 11 having elasticity, a two-component curable silicone rubber (trade name RBL-9101-05, manufactured by Toray Dow Corning Co., Ltd.) is used, and the two components are mixed, stirred and defoamed. Used.
  • a two-component curable silicone rubber (trade name RBL-9101-05, manufactured by Toray Dow Corning Co., Ltd.) is used, and the two components are mixed, stirred and defoamed. Used.
  • an apparatus shown in FIG. 7 was used to press a mold against the surface of the thermosetting resin to form a shape.
  • the surface asperity structure of the mold 11 is such that the specific shape of the top surface 15a of the convex portion 15 is a square with a side length of 80 ⁇ m, and the columnar projections with a height of 50 ⁇ m of the convex portion 15 are closely packed with a width of 20 ⁇ m of the concave portion It was arranged to be arranged.
  • the roll-shaped mold 11 was produced so that the width of the mold 11 was 300 mm and the length of the mold 11 was 300 m, and the produced mold 11 was attached so as to be able to be transported to the apparatus shown in FIG.
  • the coating material 13 a polymer material polylactic acid (manufactured by Wako Pure Chemical Industries, Ltd.) dissolved in ethyl acetate (CAS No. 141-78-6 Wako Pure Chemical Industries, Ltd.) is used. It prepared so that the concentration of lactic acid might be 2.5 mass%.
  • the mold 11 is conveyed at a unwinding tension of 10 N, a winding tension of 10 N, and a conveying speed of 3 m / min, and a slit die 31 and a mold are used as a coating unit 30 using a slit die 31 having a discharge width of 290 mm and a slit width of 100 ⁇ m.
  • the coating material 13 was applied at a discharge speed such that the film thickness of the polymer film 14 after drying at the transport speed was 150 nm, with a distance of 100 ⁇ m from the surface 11 being 11 ⁇ m.
  • the drying unit 40 utilized the high volatility of ethyl acetate and used a drying space that was thermostated to be constant at 40 ° C.
  • the mold 11 is pinched by the nip roll 53 and the drive roll 23, and the nip roll 54 and the drive roll 24 at a pressure of 0.2 MPa, respectively, and the tension applied to the mold 11 in the peeling section is approximately 0N.
  • a freely rotatable tension adjustment roll 55 connected to the tip of the air cylinder rod is pressed against the opposite surface to the application surface of the mold 11.
  • the stroke of the air cylinder was adjusted so that the amount of extension of the mold 11 in the peeling section was 300%, and the length of the mold 11 in the peeling section was extended from 200 mm to 600 mm.
  • the polymer thin film 16 separated from the surface of the mold 11 was collected by the suction nozzle of the collection unit 60 when the mold 11 was extended, and was installed between the suction nozzle 61 and a negative pressure generator 62 such as a vacuum pump. It collected by the nonwoven fabric filter (brand name FS6200, Nippon essence Co., Ltd. make) which is the collection material 63.
  • the polymer thin film 16 had a shape substantially the same as the shape of the top surface 15 a of the mold 11.
  • the result of having observed the surface of the polymer thin film 16 which has a specific shape obtained in the present Example 1 in FIG. 11 with a scanning electron microscope is shown.
  • Example 2 As the material of the roll-shaped mold 11 having stretchability and the coating material 13, the same ones as described in Example 1 were used.
  • the specific shape of the top surface 15a of the convex portion 15 is a regular hexagon having a diagonal length of 100 ⁇ m, and the columnar projections having a height of 50 ⁇ m of the convex portion 15 are closely packed with a width of 20 ⁇ m of the concave portion It arranged so that it became arrangement.
  • the roll-shaped mold 11 was produced so that the width of the mold 11 was 300 mm and the length of the mold 11 was 300 m.
  • a 100 ⁇ m thick film (trade name “Lumirror” (registered trademark), S10, manufactured by Toray Industries, Inc.) made of biaxially stretched polyethylene terephthalate is used as the coating substrate 83, and the width is 300 mm and the length is 300 m. did.
  • the mold 11 and the coating substrate 83 were attached so as to be able to be transported to the apparatus shown in FIG.
  • the mold 11 is conveyed at an unwinding tension of 10 N, a winding tension of 10 N, and a conveying speed of 3 m / min.
  • the coating substrate 83 is conveyed at an unwinding tension of 30 N, a winding tension of 30 N, and a conveying speed of 3 m / min.
  • the film of the polymer material after drying at the transport speed was applied at a discharge rate of 150 nm in thickness.
  • the driving roll 34 and the nip roll 33 held a pressure of 0.2 MPa so that the top surface 15 a of the convex portion 15 of the mold 11 and the application surface of the application material 13 of the application substrate 83 were in contact.
  • the drying unit 40 utilized the high volatility of ethyl acetate and used a drying space that was thermostated to be constant at 40 ° C.
  • the mold 11 is pinched by the nip roll 53 and the drive roll 23, and the nip roll 54 and the drive roll 24 at a pressure of 0.2 MPa, respectively, and the tension applied to the mold 11 in the peeling section is approximately 0N.
  • a freely rotatable tension adjustment roll 55 connected to the tip of the air cylinder rod is pressed against the opposite surface to the application surface of the mold 11.
  • the stroke of the air cylinder was adjusted so that the amount of elongation of the mold in the peeling section was 300%, and the length of the mold 11 in the peeling section was extended from 200 mm to 600 mm.
  • the polymer thin film 16 separated from the surface of the mold 11 is collected by the suction nozzle 61 of the collection unit 60 by the extension of the mold 11, and installed between the suction nozzle 61 and a negative pressure generator 62 such as a vacuum pump.
  • the collected material 63 was collected by a non-woven filter (trade name FS6200, manufactured by Nippon Byuren Co., Ltd.). As a result of observing the collected thin polymer film 16, it was confirmed that the thin polymer film 16 had a shape substantially the same as the shape of the top surface 15 a of the mold 11. The result of having observed the surface of the polymer thin film 16 which has a specific shape obtained in the present Example 2 in FIG. 12 with a scanning electron microscope is shown.
  • the polymer thin film obtained by the apparatus and method for producing a polymer thin film having a specific shape according to the present invention is accumulated by overlapping with one another while showing high followability to an adherend, resulting in high adhesion and stability. Can be formed. For example, it is most suitable for hemostasis at the time of surgery, a wound covering material, an adhesion preventing material, a cosmetic material, a percutaneous absorption material and the like. Moreover, it can be used as a coating agent etc. by disperse

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