[go: up one dir, main page]

CN108454254A - Rough surface sheet material and its purposes - Google Patents

Rough surface sheet material and its purposes Download PDF

Info

Publication number
CN108454254A
CN108454254A CN201810077579.XA CN201810077579A CN108454254A CN 108454254 A CN108454254 A CN 108454254A CN 201810077579 A CN201810077579 A CN 201810077579A CN 108454254 A CN108454254 A CN 108454254A
Authority
CN
China
Prior art keywords
rough surface
sheet material
particle
surface sheet
thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810077579.XA
Other languages
Chinese (zh)
Other versions
CN108454254B (en
Inventor
田所信彦
中下武文
高桥俊行
山本胜志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2017232077A external-priority patent/JP6660568B2/en
Application filed by Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Publication of CN108454254A publication Critical patent/CN108454254A/en
Application granted granted Critical
Publication of CN108454254B publication Critical patent/CN108454254B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00Printing plates or foils; Materials therefor
    • B41N1/12Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

The present invention provides a kind of rough surface sheet material of no flake and its purposes.Additionally, it is provided a kind of for further manufacturing well and inexpensively the manufacturing method of liquid crystal display element than present situation using the flexographic printing version and productivity.Rough surface sheet material (1) includes surface layer (5), the surface layer (5) includes adhesive resin (3) and minuteness particle (4), and at least part of minuteness particle (4) protrudes, and is made into the die face (6) through rough surface to the surface on surface layer (5).The manufacturing method of printing resin original plate and flexographic printing version be included in so that the layer of photosensitive polymer combination is contacted the die face in the state of harden it using the irradiation of active ray after the process removed.The process that the manufacturing method of liquid crystal display element forms liquid crystal orientation film including the use of the flexographic printing for using the flexographic printing version.

Description

Rough surface sheet material and its purposes
Technical field
It is coarse the present invention relates to being used in a kind of manufacture of the printing resin original plate on the basis as flexographic printing version Face sheet material, using the manufacturing method of printing resin original plate of the rough surface sheet material, the manufacturing method of flexographic printing version, And the manufacturing method of liquid crystal display element.
Background technology
Constitute liquid crystal display element substrate electrode forming surface on, in order to formed thickness as far as possible uniformly and require nothing Pin hole etc. and the thin high liquid crystal orientation film for applying film quality, and utilize the flexographic printing process with good printing characteristic.
Following flexographic printing version is used in flexographic printing process:Including soft resin sheet (printing resin original plate), and Sheet surface is made into an edition surface, i.e., in the state that load is held as the ink on the basis of liquid crystal orientation film etc. with electrode forming surface It is contacted etc. printed face, to which the face for making ink be transferred to printed face be made.
In order to improve ink is kept well to the wetability of ink and the ink kept can be transferred well To printed face, the version surface of flexographic printing version is normally manufactured as the rough surface of defined surface roughness.
It, first, will be as the basis of resin sheet in the manufacturing method of printing resin original plate described in patent document 1 Photosensitive polymer combination extend to surface with stratiform coating and be made on the rough surface sheet material of the die face through rough surface, And make its hardening using the irradiation of ultraviolet light isoreactivity light in this case.Then, it is shelled from the sheet material formed using hardening From rough surface sheet material, then the face of sheet material contacted with die face is transferred with rough surface shape, to be made in the face through coarse The version surface in face.
According to the manufacturing method, productibility is good and inexpensively manufactures the whole face on version surface through rough surface Printing resin original plate.
As rough surface sheet material, as described in Patent Document 1 as, using including the thermoplastics such as carbamate based elastomers Property elastomer (Thermo Plastics Elastomer, TPE) sheet material and in such as poly- pair of the opposing face of die face side lamination The winner etc. as enhancing film such as polyethylene terephthalate (Polyethylene Terephthalate, PET) film.
The rough surface sheet material for example manufactures as follows:It is sheet by TPE extrusion moldings, and together with enhancing film It continuously inserts to peripheral surface and is made for the former mould of coarse planar corresponding with the rough surface shape of the die face of rough surface sheet material Between the rough surface roller and two pairs of rollers in face.That is, the sheet material of TPE is made to be laminated each other with enhancing film using pressure when inserting, and And the die face through rough surface is made in the surface in the rough surface shape of the surface transfer original die face of sheet material.
About manufactured rough surface sheet material, optionally cuts out and be used for printing resin original plate for defined size etc. Manufacture.
It is using the reason of TPE:Using the manufacturing method can efficiency more well by the periphery of rough surface roller Face is the rough surface shape transfer of former die face to die face.In addition, its reason also resides in:The parent of TPE and photosensitive polymer combination It is high with property or wetability, it therefore, can be well by the version surface of the rough surface shape transfer of die face to printing resin original plate.
However, in existing rough surface sheet material, in the synthesis of TPE, easy tos produce and be referred to as flake (fisheye) Partial gel shape object, if between the flake generated is held on and enhances film, being easy to generate than forming the recessed of rough surface in die face Convex big local protuberance.If moreover, printing resin original plate is manufactured using the rough surface sheet material for generating protrusion, in its edition table Face generates the flatness that edition surface is damaged based on the recess of protrusion, as a result there is the uniform of the thickness for damaging liquid crystal orientation film etc. The project of property.
For in terms of the synthesis mechanism of TPE, it is difficult to flake is completely removed, after lamination, the rough surface before cutting out It must include a large amount of flake on sheet material.
Therefore, when manufacturing rough surface sheet material, it is necessary to select and cut out not producing after confirming the position for generating flake The region of raw flake, the waste of material become larger.
In addition, the partial gel shape object for forming flake is substantially identical component with TPE, color and luster or appearance are almost the same, Therefore a large amount of labour and time are needed in location confirmation when cutting out or the inspection of the rough surface sheet material after cutting out.
Therefore, in conjunction with these situations, in existing manufacturing method, there are the low classes of the productivity of rough surface sheet material Topic.
In turn, if using the rough surface sheet material of over sight (OS) flake in inspection in the manufacture of printing resin original plate, Version surface generates recess and generates the defective products that can not in press use.And there are following situations:Printing resin original plate, And then the fraction defective of flexographic printing version rises, productivity reduces, and the productivity of final liquid crystal display element reduces.
[existing technical literature]
[patent document]
[patent document 1] Japanese Patent Laid-Open 2013-119179 bulletins
Invention content
The subject that the invention solves
The purpose of the present invention is to provide a kind of rough surface sheet material of no flake and for by using the rough surface Change sheet material and inhibits the generation of unfavorable condition to which productivity manufactures the system of printing resin original plate and flexographic printing version well Make method.
In addition, the purpose of the present invention is to provide it is a kind of for using manufactured flexographic printing version and productivity is further The manufacturing method of liquid crystal display element well and is inexpensively manufactured than present situation.
Technical means to solve problem
The present invention is a kind of rough surface sheet material, is used for the manufacture of printing resin original plate, and include at least surface quilt The enhancing film of the surface layer of the die face through rough surface and the back side set on the surface layer is made, the surface layer includes adhesive Resin and the minuteness particle being scattered in described adhesive resin, and at least part of the minuteness particle is from the surface layer Surface protrude, be made into the die face through rough surface to the surface.
In addition, the present invention is a kind of manufacturing method of printing resin original plate, the manufacturing method includes following process: In the state of so that the layer of photosensitive polymer combination is contacted the die face of the rough surface sheet material, to the layer, work is utilized Property light irradiation and make its harden after from the die face remove, thus transferred on the face of the layer contacted with the die face The rough surface shape of the die face, to which the face to be made to the version surface through rough surface.
In addition, the present invention is a kind of manufacturing method of flexographic printing version comprising manufacturing method manufacture will be utilized The hot excision of the corresponding portion of printing resin original plate and form the work clamped into portion and chuck hole for being installed in printing machine Sequence.
In turn, the present invention is a kind of manufacturing method of liquid crystal display element comprising uses and utilizes manufacturer's legal system The flexographic printing version made and the process that liquid crystal orientation film is formed by flexographic printing.
The effect of invention
According to the present invention, it is possible to provide the rough surface sheet material of a kind of no flake and for by using the rough surface Sheet material and inhibit the generation of unfavorable condition to which productivity manufactures the manufacture of printing resin original plate and flexographic printing version well Method.
In addition, according to the present invention, it is possible to provide it is a kind of for using manufactured flexographic printing version and productivity further compares Present situation well and inexpensively manufactures the manufacturing method of liquid crystal display element.
Description of the drawings
Fig. 1 is that the constituting layer of an example of the rough surface sheet material of the present invention expands and the sectional view of expression.
Fig. 2 (a)~Fig. 2 (c) is to indicate the rough surface sheet material using Fig. 1 examples and manufactured using the manufacturing method of the present invention The sectional view of an example of the process of printing resin plate.
Fig. 3 (a)~Fig. 3 (c) is the sectional view of an example for the subsequent handling for indicating Fig. 2 (a)~Fig. 2 (c).
Fig. 4 is to indicate that the printing manufactured using the manufacturing method using Fig. 2 (a)~Fig. 2 (c), Fig. 3 (a)~Fig. 3 (c) is used Resin original plate and the stereogram of an example of flexographic printing version manufactured.
[explanation of symbol]
1:Rough surface sheet material;
2:Enhance film;
3:Adhesive resin;
4:Minuteness particle;
5:Surface layer;
6:Die face;
7:Supporting substrate;
8:Surface;
9:Opposing face;
10:Photosensitive polymer combination;
11:Reinforcing sheet;
12:Layer;
13:Opposite substrate;
14:Opposite surface;
15:Layer;
16:Laminated body;
17:Operation post;
18:Version surface;
19:Printing resin original plate;
20:It clamps into portion;
21:Chuck hole;
22:Flexographic printing version;
23:Groove portion.
Specific implementation mode
<Rough surface sheet material>
Fig. 1 is that the constituting layer of an example of the rough surface sheet material of the present invention expands and the sectional view of expression.
Referring to Fig.1, this rough surface sheet material 1 includes the PET film as enhancing film 2 and the list for being laminated in enhancing film 2 Surface layer 5 on face (being upper surface in figure).
Surface layer 5 includes adhesive resin 3 and the minuteness particle 4 being scattered in adhesive resin 3, and minuteness particle 4 is extremely A few part is protruded from the surface on surface layer 5, to which the surface is made into the die face 6 through rough surface.Example in figure In the case of, the surface of minuteness particle 4 outstanding is coating by the very thin film comprising adhesive resin 3.Wherein, minuteness particle 4 Surface also can be not coating by film and be exposed, and coated person and exposing person can be also mixed.
Surface layer 5 can be for example formed as follows:Paint comprising adhesive resin 3 and minuteness particle 4 is coated on increasing So that paint is dried after the single side of strong film 2, and then have in adhesive resin 3 indurative, utilizes ultraviolet light isoreactivity The irradiation or heating of light and make adhesive resin 3 harden.
Therefore, the forming step using the die face of the rough surface roller can be omitted and be suitable for this includes TPE's etc. Surface layer.
Therefore, as adhesive resin 3, a variety of materials that not will produce flake problem other than TPE can be used, and can press down The generation of various unfavorable conditions caused by flake processed.
Rough surface sheet material 1 for example manufactures as follows:Exist its list on one side while continuously enhancing film 2 of conveying strip Face is continuously coated with paint and is continuously formed surface layer 5.
In addition, about manufactured rough surface sheet material 1, optionally cuts into specific length, Rack etc. and use In the manufacture of printing resin original plate.
In the forming step of the existing die face using rough surface roller, the line of change, adjustment die face is thick or solid figure In the case of shape etc., need individually to prepare dedicated rough surface roller for different die faces, there are rough surface sheet material, And the high project of manufacturing cost of flexographic printing version.
In contrast, in the case of the surface layer 5 comprising adhesive resin 3 and minuteness particle 4, it can be by adjusting minuteness particle 4 type or grain size, allotment ratio, paint coating thickness etc. and arbitrarily change, adjust die face 6 as the surface on surface layer 5 Line is thick or three-dimensional shape etc..
In addition, the rough surface piece that the rough surface sheet material 1 that die face 6 is the surface on surface layer 5 includes TPE with existing die face Material is compared, learnt according to aftermentioned embodiment, the result of comparative example can the printing of easily self-forming removed with resin original plate.
Therefore, in conjunction with these situations, productibility is good and inexpensively manufactures rough surface sheet material 1 or flexographic printing Version.
As formed surface layer 5 adhesive resin 3, such as can be used for manufacture printing resin original plate to active light Line has the various resins of permeability.As adhesive resin 3, such as acrylic resin, makrolon, polychlorostyrene second can be enumerated The one or more of alkene, polystyrene, polyester, polyurethanes etc..
Especially preferably thermoplasticity, 2 liquid hardenability, active ray hardenability or thermosetting acrylic resin, wherein The preferably acrylic resin of 2 package curing type of acrylic acid polyurethanes.As 2 package curing type of acrylic acid polyurethanes Acrylic resin, such as can enumerate by the host agent comprising acrylic polyol, with the hardener combination comprising isocyanates and Winner etc..
In general, acrylic resin with as printing resin original plate basis photosensitive polymer combination it is affine Property or wetability it is high, therefore the rough surface shape of die face can be transferred well on the version surface of printing resin original plate.
As minuteness particle 4, the particle of resin or the particle etc. of inorganic material can be used.As the particle of resin, such as The particle of acrylic resin, silicone resin, polystyrene, makrolon etc. can be enumerated.As the particle of inorganic material, such as can Enumerate the particle of glass, titanium oxide, barium sulfate, talcum, clay, aluminium oxide, calcium carbonate, silica etc..These grains can be used The one or more of son are used as minuteness particle 4.
Wherein, preferably include for manufacture printing resin original plate to active ray have permeability material it is micro- Fine particle 4.
Furthermore the three-dimensional shape of minuteness particle 4 is simply set as spherical in Fig. 1, but the three-dimensional shape of minuteness particle 4 is simultaneously It is not limited to spherical, the various three-dimensional shapes such as unsetting granular or arbitrary polyhedral can be set as.
For example, using feelings of the acrylic resin of 2 package curing type of acrylic acid polyurethanes as adhesive resin 3 Under condition, its basic host agent and curing agent and minuteness particle 4 are become with the allotment of defined ratio, and then optionally add and be used for It adjusts solvent of viscosity etc. and prepares paint.
Enhance film 2 in addition to the work(for improving the enhancings as literal such as the whole tensile strength of rough surface sheet material 1 Other than energy, functioned also for following situation is corrected:Rough surface sheet material 1 is because of the indurative adhesive resin of active ray Contraction when 3 hardening etc. and warpage.
It, as described can be preferably with PET film as enhancing film 2.Function of the PET film as enhancing film 2 etc. is excellent.Especially It is preferably used for the PET film to active ray with permeability of manufacture printing resin original plate.
Wherein, as enhancing film 2, such as can also be used polyvinyl alcohol (Polyvinyl Alcohol, PVA), polyamide, The film of polyimides (Polyimide, PI), makrolon, cellulose ethanoate etc..
On the single side (in figure be upper surface) on the stacking surface layer 5 of enhancing film 2, optionally in order to improve the contiguity on surface layer 5 Property, it can also implement prime treatment.
As prime treatment, for example, can enumerate Corona discharge Treatment, flame treatment, ozone treatment, ultraviolet treatment with irradiation, The one or more of blasting treatment, solvent processing etc..In addition, for example can also be formed comprising with formed enhancing film 2 PET, Or form the prime coat of the excellent a variety of materials of compatibility, adhesion of the adhesive resin 3 on surface layer 5.
The minimum value that the minuteness particle 4 for forming surface layer 5 is preferably particle diameter distribution (size distribution) is 2.0 μm or more and grain size The maximum value of distribution is 30.0 μm or less.Minimum value, the maximum value of so-called particle diameter distribution are indicated for the fine of measure object The minimum value and maximum value of particle 4 and the grain size in the measurement result of particle diameter distribution that finds out.
Include for printing soft version in minuteness particle 4 if the minimum value of the particle diameter distribution of minuteness particle 4 is less than 2.0 μm Too small particle for the coarse planar for the ink that can keep abundant thickness is made in the version surface of brush version.On the other hand, fine In the case that the maximum value of the particle diameter distribution of particle 4 is more than 30.0 μm, comprising for the version surface to be made in minuteness particle 4 It can keep the particle that grain size is excessive for the coarse planar of the ink of abundant thickness.
Therefore there is following worry:Though also depending on the coating thickness or adhesive resin 3 and minuteness particle 4 of paint Allotment ratio etc., but in any case can not will use the whole of the version surface of flexographic printing version that rough surface sheet material 1 manufactures Face is formed as equably keeping the coarse planar without unevenness of the ink of abundant thickness.Moreover, will produce following situation:It utilizes The thickness for such as liquid crystal orientation film that flexographic printing process is formed is insufficient or thickness becomes uneven.
In contrast, by the way that the minimum value of the particle diameter distribution of minuteness particle 4, maximum value are set to the range, it can Remove the too small particle of the grain size or the excessive particle of grain size.It therefore, can be by the die face 6 of rough surface sheet material 1 and then soft version The concave-convex coarse planar without unevenness with modest size is made in the whole face on the version surface of galley.Moreover, institute can will be used State flexographic printing version and formed using flexographic printing process, such as liquid crystal orientation film be set as it is uniform and have abundant thickness person.
In addition, minuteness particle 4 is preferably according to the standard deviation of particle diameter distribution with average grain diameter and by formula (1):
Coefficient of variation Cv=(standard deviation)/(average grain diameter) (1)
It is calculated, and indicate that the coefficient of variation Cv of the deviation of particle diameter distribution is 0.35 or less.
In the case where coefficient of variation Cv is more than 0.35, the deviation of particle diameter distribution becomes larger, and containing big in minuteness particle 4 The too small excessive particle of particle or grain size of the grain size of amount.
Therefore there is following worry:Though remaining on the coating thickness or adhesive resin 3 and minuteness particle depending on paint 4 allotment ratio etc., but the whole face on the version surface of flexographic printing version that rough surface sheet material 1 manufactures can not will be used to be formed as can Equably keep the coarse planar without unevenness of the ink of abundant thickness.Moreover, will produce following situation:Utilize flexographic printing process The thickness of such as liquid crystal orientation film formed is insufficient, or becomes uneven.
In contrast, by the way that coefficient of variation Cv is set as the range, it is excessive to can remove grain size too small particle and grain size Particle.Therefore, the whole face on the version surface of the die face 6 of rough surface sheet material 1 and then flexographic printing version can be made with appropriateness The concave-convex coarse planar without unevenness of size.Moreover, can will use the flexographic printing version and be formed using flexographic printing process , such as liquid crystal orientation film be set as it is uniform and have abundant thickness person.
Furthermore if in view of further improving these effects, coefficient of variation Cv is preferably 0.25 in the range Below.
However, in the case where coefficient of variation Cv is too small, grain size is formed in rough surface piece 1 close to monodisperse The concave-convex spacing on the version surface of die face 6 and flexographic printing version is close to single.Although if it does, the then range of spacing itself Difference, but still be single spacing, and because with the substrate that includes such as composition liquid crystal display element that is forming irregular part Electrode forming surface interaction, and exist in the liquid crystal orientation film that is formed on the electrode forming surface and generate More (moire) the case where striped.
Therefore, if generation in view of inhibiting Moire fringe, coefficient of variation Cv be preferably 0.15 in the range with On, wherein preferably 0.18 or more, especially preferably 0.20 or more.
In addition, in this case, the minimum value for being still preferably the particle diameter distribution of minuteness particle 4 is 2.0 μm or more, and grain size divides The maximum value of cloth is 30.0 μm or less.The reason as previously explained as.
In addition, in order to inhibit the generation of Moire fringe, as minuteness particle 4, also can and with different two kinds of particle diameter distribution The stuff and other stuff of minuteness particle.
If using the stuff and other stuff of two kinds of different minuteness particles of particle diameter distribution, the mould of rough surface sheet material 1 can inhibit Concave-convex spacing is formed by face 6 and the version surface of flexographic printing version close to single situation.Therefore, can inhibit for example because With the interaction of the electrode forming surface for the substrate for constituting liquid crystal display element, and the liquid crystal formed on the electrode forming surface The case where Moire fringe is generated in alignment films.
Wherein, still include a large amount of in minuteness particle 4 in the case where the deviation of the particle diameter distribution of stuff and other stuff entirety is big The too small excessive particle of particle or grain size of grain size.Therefore, the coefficient of variation Cv of stuff and other stuff entirety still be preferably 0.35 with Under.
By the way that coefficient of variation Cv is set as the range, the excessive particle of grain size too small particle and grain size can remove.Cause This, the whole face on the version surface of the die face 6 of rough surface sheet material 1 and then flexographic printing version can be made with the recessed of modest size The convex coarse planar without unevenness.Moreover, can will use the flexographic printing version and utilize flexographic printing process formation, such as liquid Brilliant alignment films are set as uniform and have abundant thickness person.
However, in the case where coefficient of variation Cv is too small, the grain size of two kinds of minuteness particles is close and stuff and other stuff is whole There is the tendency for easy ting produce Moire fringe instead close to monodisperse in grain size.If in view of inhibiting the generation of Moire fringe, mix The coefficient of variation Cv for closing particle entirety is preferably 0.15 or more in the range, wherein preferably 0.18 or more, particularly preferably It is 0.20 or more.
Constituting the range of the particle diameter distribution of two kinds of minuteness particles of stuff and other stuff can arbitrarily set.The grain of two kinds of minuteness particles The range of diameter distribution can be different from each other, also can part repetition.
Wherein, the minimum value that two kinds of minuteness particles are both preferably particle diameter distribution is the maximum of 2.0 μm or more and particle diameter distribution Value is 30.0 μm or less.The excessive particle of grain size too small particle and grain size is can remove as a result, to which rough surface piece will be used Material 1 and the version surface of flexographic printing version that manufactures be formed as equably keeping the ink of abundant thickness without uneven rough surface Shape.
In addition, with same reason, the respective coefficient of variation Cv of two kinds of minuteness particles is both preferably 0.35 or less.
However, as described, can inhibit the particle diameter distribution of stuff and other stuff entirety close to singly by and with two kinds of minuteness particles The case where dispersion, thus the coefficient of variation Cv of at least one of two kinds of minuteness particles minuteness particle may be lower than described 0.15 with On range.
The allotment ratio of two kinds of minuteness particles can according to the range or coefficient of variation Cv of the particle diameter distribution of each minuteness particle or Coefficient of variation Cv of person's stuff and other stuff entirety etc. is set as arbitrary range.
However, in order to further improve the effect using stuff and other stuff, preferably by small fine of particle diameter distribution Particle ratio shared in the total amount of stuff and other stuff is set as 10 mass % or more, be especially preferably set as 60 mass % with Upper and 90 mass % or less.
It is base about the particle diameter distribution of minuteness particle 4 or each minuteness particle for constituting stuff and other stuff furthermore in the present invention It is indicated in Mie scattering theories with being distributed using the volume of laser diffraction/scattering method.As coefficient of variation Cv basis Standard deviation is according to the shape of particle being assumed to spherical shape and result is found out obtained by being converted on the basis of number.It is flat Equal grain size be set to the shape of particle being assumed to spherical shape and converted on the basis of number and after being added up divided by particle Number and the arithmetic average diameter on the basis of number that finds out.
It is to make laser diffraction/scattering formula particle size distribution analyzer LA- that institute's (stock) manufactures using hole field in embodiment 950V2 is distributed to measure the volume of minuteness particle, but it's not limited to that for measurement device.
The allotment ratio of adhesive resin 3 and minuteness particle 4 can be according to concave-convex size formed in die face 6 etc. come arbitrary Adjustment.
Wherein, in the case where adhesive resin 3 is very few, there are the worry that can not form continuous strong surface layer 5, phase Instead, in the case where adhesive resin 3 is excessive, there is the concave-convex too small worry formed in the die face 6 as the surface on surface layer 5.
If in view of concave-convex size etc., in the surface layer of formation 5, it is generally desirable to volume in adhesive resin 3 On the basis of and bury with 1/2~1/8 ratio the state of minuteness particle.Therefore, the allotment ratio of the two is with adhesive resin 3 The shared volume in total amount of the adhesive resin 3 (solid constituent of resin obtained by removal volatile ingredient) with minuteness particle 4 Ratio indicates, is preferably set as 30 volume % or more and 80 volume % or less.
The single side of the thickness on surface layer 5, i.e. self-reinforcing film 2 rises to the protrusion in the bumps of the die face 6 formed by minuteness particle 4 Top until thickness, can the grain size based on minuteness particle 4 and arbitrarily set.For example, the grain size in minuteness particle 4 is 2.0 μ Though the thickness on surface layer 5 is not limited to this, for example, it is preferably 0.005mm in the case of m or more and 30.0 μm of range below More than (=5.0 μm), and preferably 0.035mm (=35.0 μm) is below.
The thickness for enhancing film 2 is preferably 0.050mm or more, wherein preferably 0.075mm or more, and preferably 0.300mm Hereinafter, being wherein preferably 0.250mm or less.
If thickness is less than the range, for example, 1 wound into rolls of rough surface sheet material of strip before it will cut, In the manufacture of printing resin original plate processing is wound using cut rough surface sheet material 1, in order to store etc. When etc., rough surface sheet material 1 easily snaps off.If fractureing moreover, being generated in rough surface sheet material 1, die face 6 and then soft version print The defect that fractures is generated in the rough surface shape on the version surface of brush version, to there is the worry for generating following project:Such as it can not be thick Degree is formed uniformly continuous liquid crystal orientation film.
On the other hand, in the case where the thickness for enhancing film 2 is more than the range, the weight of rough surface sheet material 1 increases, And be difficult to roll the bending of rough surface sheet material 1, therefore there are the worries of the reductions such as the treatability.
In addition, the thickness of enhancing film 2 becomes larger, then the unevenness for enhancing the thickness of film 2 also more becomes larger, therefore the painting of paint Cloth thickness also easy tos produce unevenness.Moreover, there is the worry for generating following region in the small part of the thickness of PET film:Adhesive The thickness of resin becomes larger, and minuteness particle is buried in adhesive resin, and the area of sufficient rough surface can not be formed compared with surrounding Domain.That is, there is following worry:It is easy production in the concave-convex distribution of the die face 6 on the surface as surface layer 5 and then rough surface shape It is raw uneven.
In contrast, by the way that the thickness for enhancing film 2 is set as the range, the generations such as can inhibit to fracture as much as possible, and And the make die face 6 rough surface shape with being unevenly distributed of treatability that rough surface sheet material 1 can be improved etc., no concave-convex homogenizes.
Furthermore if in view of further homogenizing the rough surface shape of die face 6, enhance the thickness of film 2 described It is smaller the more preferred in range.That is, reducing the thickness of enhancing film 2, enhancing the unevenness of the thickness of film 2 can more reduce, and can make As the coating thickness homogenization of the paint on the basis on surface layer 5, rough surface shape is made to homogenize.
The feelings especially combined in ranging from 2.0 μm or more and 30.0 μm of minuteness particles 4 below with the grain size Under condition, the thickness of enhancing film 2 is preferably 0.200mm in the range hereinafter, being wherein preferably 0.150mm hereinafter, especially excellent It is selected as 0.100mm or less.The effect for making rough surface shape homogenize can be further improved as a result,.Wherein, if also considering together To preventing for the defect that fractures etc., then the thickness for enhancing film 2 is preferably 0.100mm or more.
Furthermore in the case where the single side for enhancing film 2 forms prime coat as prime treatment, in of the invention, the increasing The thickness of strong film 2 is set to total thickness of enhancing film 2 and prime coat.
About the integral thickness of thickness and total rough surface sheet material 1 of the thickness on surface layer 5 as enhancing film 2, if In view of the generation etc. for inhibiting to fracture as far as possible, then preferably 0.065mm or more, wherein preferably 0.080mm or more, especially excellent It is selected as 0.120mm or more.In addition, if the treatability etc. in view of improving rough surface sheet material 1, integral thickness are preferably 0.320mm hereinafter, wherein be preferably 0.285mm hereinafter, especially preferably 0.230mm hereinafter, in turn be preferably 0.175mm with Under.
<The manufacturing method of printing resin original plate and flexographic printing version>
Fig. 2 (a)~Fig. 2 (c) is the manufacturer for indicating to manufacture printing resin plate using the rough surface sheet material of Fig. 1 examples The sectional view of an example of the process of method.In addition, Fig. 3 (a)~Fig. 3 (c) is the one of the downstream process for indicating Fig. 2 (a)~Fig. 2 (c) The sectional view of example.
With reference to Fig. 2 (a), in this manufacturing method, prepare comprising such as glass or acrylic resin, makrolon The hard such as the hard resins such as resin, polyester resin and to ultraviolet light isoreactivity light have permeability material supporting substrate 7. In addition, about rough surface sheet material 1, for example, enhancing film 2, the adhesive resin 3 on formation surface layer 5 and minuteness particle 4 use Including having the material person of permeability to active ray.
Moreover, under being using the opposing face 9 that the die face 6 on the surface as surface layer 5 is exposing surface upper, as enhancing film 2 Mode, rough surface sheet material 1 is overlapped on the surface 8 of the upside in the figure of supporting substrate 7.Specifically, for example making coarse The surface 8 of the end thereof contacts supporting substrate 7 of the opposing face 9 of face sheet material 1, and as shown in the dashdotted arrow in figure, Rough surface sheet material 1 is sequentially overlapped from the one end on surface 8 towards the other end.
The rough surface sheet material 1 on supporting substrate 7 is coincided with to require to be difficult to because coating extends the photonasty of liquid on it Convergent force when hardening of shearing force or photosensitive polymer combination when resin combination etc. and relative to supporting substrate 7 produce Raw position offset, and the replacement after use is easy.Thus, for example preferably using following (i)~(iii) either method and incite somebody to action It coincides with the rough surface sheet material 1 on supporting substrate 7 and installs/unload the surface 8 for being fixed on supporting substrate 7 freely.
(i) be situated between every comprising to active ray have permeability material weak adhesive layer by rough surface sheet material 1 pacify loading/unloading Under be adhesively fixed freely in the surface of supporting substrate 78.
(ii) it is formed on the surface of supporting substrate 78 and attracts slot, and via attracting slot to carry out vacuum attraction, thus will be coarse The surface 8 that supporting substrate 7 is fixed in absorption freely is installed/unloaded to face sheet material 1.
(iii) by rough surface sheet material 1 the size interval in the face direction compared with supporting substrate 7 a pair of of chuck clamps Between expand in the state of install/unload crimping freely and be fixed on the surface 8 of supporting substrate 7.
As the middle weak adhesive layer used that is adhesively fixed of (i), can be used such as any one of lower layer:To supporting substrate 7, And both PET films as enhancing film 2 have weak adhesiveness, and include the various adhesives that there is permeability to active ray Layer.Weak adhesive layer is to be formed as follows:In the opposing face 9 of the surface of supporting substrate 78 and rough surface sheet material 1 extremely In few one such as using various coating methods spraying coating come coating adhesive.
After forming weak adhesive layer, as shown in the dashdotted arrow in Fig. 2 (a), opposing face 9 is set as down simultaneously certainly The one end on the surface 8 of supporting substrate 7 is towards the other end on one side being noted that so that air is sequentiallyed while will not entering therebetween weighs Folded rough surface sheet material 1.If it does, then rough surface sheet material 1 is fixed on surface 8 using the bonding force of weak adhesive layer.
In addition, when removing fixed rough surface sheet material 1 from surface 8, as long as such as with the arrow of Fig. 2 (a) on the contrary from The other end of supporting substrate 7, which is sequentiallyed towards one end while resisting the bonding force of weak adhesive layer, peels rough surface sheet material 1 etc. .
Absorption in order to carry out (ii) is fixed, and is smooth by the finishing of the surface of supporting substrate 78, and on surface 8 Substantially entire surface, which is formed, attracts slot.Slot is attracted to be connected to the vacuum system for including vacuum pump etc..Moreover, about rough surface sheet material 1, Opposing face 9 is set as down and so that vacuum system is operated in the state of being overlapped in surface 8 of supporting substrate 7, or makes first to operate Vacuum system with attract slot connect.If it does, the rough surface sheet material 1 being then overlapped via attract slot and be attracted by vacuum from And it is fixed on surface 8.
When removing fixed rough surface sheet material 1 from surface 8, as long as vacuum system is made to stop or block vacuum system and inhale The connection of approaching channel.
Secondly, with reference to Fig. 2 (b), in this manufacturing method, the rough surface on being fixed on the surface 8 of supporting substrate 7 In the die face 6 of sheet material 1, supply becomes the photosensitive polymer combination of the liquid of the specified amount on the basis of printing resin original plate 10.The photosensitive polymer combination 10 of supply is held on rough surface sheet material 1 and is together constituted with photosensitive polymer combination 10 Between the reinforcing sheet 11 of printing resin original plate.
Moreover, as shown in the dashdotted arrow in Fig. 2 (b), the one end on the surface 8 of self-supporting substrate 7 is towards another Hold on one side be noted that so that air sequentially while will not entering therebetween be coated with extend to rough surface sheet material 1 die face 6 on. If it does, then forming the layer 12 of photosensitive polymer combination 10, and reinforcing sheet 11 is laminated on it.
Secondly, the opposite surface 14 of opposite substrate 13 is made to contact in reinforcing sheet 11 with reference to Fig. 2 (c).Moreover, by opposite The opposite surface 14 of substrate 13 is spaced apart certain intervals and is parallelly maintained with the surface 8 of supporting substrate 7, and as schemed As shown in the black arrow of 2 (c), opposite substrate 13 is squeezed to the direction of supporting substrate 7, to make layer 12 be crimped on rough surface Change the die face 6 of sheet material 1.
In this condition, supporting substrate 7 and rough surface sheet material 1 are penetrated as shown in the arrow of the solid line in Fig. 2 (c) Active ray is irradiated to layer 12, is hardened to make to be formed the photosensitive polymer combination of the layer 12 10.
At this point, the interval between the surface 8 of supporting substrate 7 and the opposite surface 14 of opposite substrate 13 is to maintain the print to manufacture The thickness of brush resin original plate is arranged plus the mode of size obtained by the thickness of rough surface sheet material 1.
Furthermore opposite substrate 13 can be formed by the arbitrary material such as metal, glass, hard resin.
Wherein, can by with supporting substrate 7 similarly to active ray have permeability material form opposite substrate 13, and And it can be by similarly there is the material of permeability to form reinforcing sheet 11 active ray with rough surface sheet material 1.
In the case of described, for example, not only can 7 side of self-supporting substrate active light also is irradiated to layer 12 from 13 side of opposite substrate Line, to make photosensitive polymer combination 10 harden.
In addition, in the case of described, can active ray only be irradiated to layer 12 from 13 side of opposite substrate and make photoresist group It closes object 10 to harden, therefore for example rough surface sheet material 1 can also be formed by the material for not having active ray permeability.
Secondly, reinforcing sheet 11 is taken out with reference to Fig. 3 (a), Fig. 3 (b), between self-supporting substrate 7 and opposite substrate 13, by feeling The laminated body 16 for the layer 15 and rough surface sheet material 1 that the hardening of photosensitive resin composition 10 is formed, and reinforcing sheet 11 is set as It is placed on operation post 17 down.
Moreover, as shown in the dashdotted arrow in Fig. 3 (b), sequentially shelled from one end of laminated body 16 towards the other end Lower rough surface sheet material 1.If it does, then the upper surface side in the figure of layer 15 is made into the die face 6 transferred with rough surface sheet material 1 Rough surface shape the version surface 18 through rough surface, to complete printing resin original plate 19 shown in Fig. 3 (c).
As photosensitive polymer combination 10, any of the various resin combinations for meeting following conditions can be used.
It is hardened using the irradiation of ultraviolet light isoreactivity light.
After hardening, there is the flexibility or caoutchouc elasticity of the appropriateness for being suitable for use in flexographic printing.
The patience to the solvent contained in the ink that is used in printing or used in the cleaning of galley can be formed (solvent resistance) excellent hardening thing.
As the photosensitive polymer combination for meeting these conditions, though it's not limited to that, such as it includes to have that can enumerate 1,2- butadiene structure and in end there is the unsaturated single amount body of the prepolymer of ethylene double bond, ethylene and photopolymerization to cause The photosensitive polymer combination etc. of agent.As Photoepolymerizationinitiater initiater, preferably styrax alkyl ether.
In addition, as reinforcing sheet 11, such as can be used comprising polyethylene (Polyethylene, PE), polypropylene The sheet material of the various thermoplastic resins such as (Polypropylene, PP), PET, tetrafluoroethene hexafluoropropylene copolymer (FEP).Increase Strong sheet material 11 preferably has permeability to active ray as described.
Thereafter, although not shown, but 4 sides of printing resin original plate 19 is cut and whole flat shape is trimmed to square Shape.Then, it as shown in figure 4, by the 15 hot excision of layer near 2 sides parallel to each other such as using laser machining, and is formed Held for being clamped at the clamp of printing machine (not shown) (vise) clamp into portion 20 or the chuck for inserting needle Hole 21 etc..Moreover, forming defined printed patterns if necessary in version surface 18 to complete flexographic printing version 22 in turn.
Furthermore in the example in figure, clamp into portion 20 throughout the entire width on 2 sides of flexographic printing version 22 and with version surface 18 Between the groove portion 23 of one fixed width is clamped, and be formed as one fixed width.
In addition, chuck hole 21 to be formed in multiple positions of the length direction in the portion of pincers 20 (for 5 positions in figure at equal intervals It sets).
<The manufacturing method of liquid crystal display element>
Using the present invention rough surface sheet material and using the fraction defective manufactured by the method it is small and productivity is excellent Flexographic printing version come utilize flexographic printing formed liquid crystal orientation film, the productivity of liquid crystal display element thus also can be improved.
The other processes of the manufacturing method of liquid crystal display element can with it is existing in the same manner as implement.
That is, transparent electrode layer corresponding with defined matrix pattern etc. is formed on the surface of the transparent substrates such as glass substrate, And liquid crystal orientation film is formed using the flexographic printing using flexographic printing version, and then optionally using friction etc. to liquid crystal orientation film Surface carry out orientation process, to make substrate.
Then, prepare two pieces of substrates and sandwich liquid crystal therebetween in the state of so that respective transparent electrode layer is aligned Material is simultaneously fixed to one another, and to form laminated body, and polarizer is arranged in two outsides of the laminated body and then optionally, by This manufacture liquid crystal display element.
The composition of the present invention is not limited to the example in figure described above.
For example, in the manufacturing method of flexographic printing version, for the layer of photosensitive polymer combination, using by rough surface Change sheet material and is made for roll person etc. to be coated with extension and thickness is set as certain, and at the same time its surface is subject to rough surface, To replace squeezing to the direction of supporting substrate using opposite substrate.
In addition, various changes can be implemented in the range of without departing from the purport of the present invention.
[embodiment]
Hereinafter, based on embodiment, comparative example, the present invention will be described in turn, but the composition of the present invention is not by these realities Apply example, comparative example limits.
<Embodiment 1>
(rough surface piece 1)
As adhesive resin 3, host agent (solid constituent be 50 mass %s) of the combination comprising acrylic polyol, packet are used The propylene of 2 package curing type of acrylic acid polyurethanes made of curing agent (solid constituent is 60 mass %) containing isocyanates Acid resin.In described adhesive resin 3, acrylic resin particle (minuteness particle 4) is allocated, and then add the first as solvent Base ethyl ketone and butyl acetate and adjust viscosity, to prepare the paint on surface layer 5.
As acrylic resin particle, the minimum value using particle diameter distribution is 2.0 μm, maximum value is 5.0 μm, average grain diameter For 3.0 μm, standard deviation be 0.8 μm, coefficient of variation Cv is 0.27.
As enhancing film 2, the PET film of the strip of the thickness 0.075mm of prime treatment is implemented with using single side, and on one side Continuously conveying PET film is continuously coated with paint in the single side on one side, is continuously formed later by warm air drying steps Surface layer 5, to be continuously manufactured by the rough surface sheet material 1 of stepped construction shown in FIG. 1.
Furthermore as constitute rough surface sheet material 1 hardening after adhesive resin 3, as the acrylic acid of minuteness particle 4 Resin particle and PET film, select for manufacture printing resin original plate to active ray have permeability person.
1 integral thickness of rough surface sheet material is 0.080mm, and the thickness on surface layer 5 is 0.005mm.
<Embodiment 2>
Using the PET film (enhancing film 2) of thickness 0.100mm, with the minimum value of particle diameter distribution be 4.0 μm, maximum value is 20.0 μm, the acrylic resin particle that average grain diameter is 12.0 μm, standard deviation is 3.3 μm, coefficient of variation Cv is 0.28 it is (micro- Fine particle 4), in addition to this, rough surface sheet material 1 is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.120mm, and the thickness on surface layer 5 is 0.020mm.
<Embodiment 3>
Using the PET film (enhancing film 2) of thickness 0.125mm, with the minimum value of particle diameter distribution be 2.0 μm, maximum value is 14.0 μm, the acrylic resin particle that average grain diameter is 8.0 μm, standard deviation is 2.7 μm, coefficient of variation Cv is 0.34 it is (fine Particle 4), in addition to this, rough surface sheet material 1 is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.140mm, and the thickness on surface layer 5 is 0.015mm.
<Embodiment 4>
Using the PET film (enhancing film 2) of thickness 0.188mm, with the minimum value of particle diameter distribution be 5.0 μm, maximum value is 30.0 μm, the acrylic resin particle that average grain diameter is 18.0 μm, standard deviation is 6.0 μm, coefficient of variation Cv is 0.33 it is (micro- Fine particle 4), in addition to this, rough surface sheet material 1 is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.220mm, and the thickness on surface layer 5 is 0.032mm.
<Embodiment 5>
Using the PET film (enhancing film 2) of thickness 0.250mm and the minimum value of particle diameter distribution is 10.0 μm, maximum value is 30.0 μm, the acrylic resin particle that average grain diameter is 20.0 μm, standard deviation is 5.4 μm, coefficient of variation Cv is 0.27 it is (micro- Fine particle 4), in addition to this, rough surface sheet material 1 is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.285mm, and the thickness on surface layer 5 is 0.035mm.
<Embodiment 6>
It the use of the PET film (enhancing film 2) of thickness 0.050mm and the minimum value of particle diameter distribution it is 2.0 μm, maximum value 14.0 μm, the acrylic resin particle (minuteness particle that average grain diameter is 8.0 μm, standard deviation is 2.9 μm, coefficient of variation Cv is 0.36 4) rough surface sheet material 1, in addition to this, is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.065mm, and the thickness on surface layer 5 is 0.015mm.
<Embodiment 7>
Using the PET film (enhancing film 2) of thickness 0.300mm, with the minimum value of particle diameter distribution be 4.0 μm, maximum value is 20.0 μm, the acrylic resin particle that average grain diameter is 12.0 μm, standard deviation is 3.0 μm, coefficient of variation Cv is 0.25 it is (micro- Fine particle 4), in addition to this, rough surface sheet material 1 is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.320mm, and the thickness on surface layer 5 is 0.020mm.
<Comparative example 1>
Reproduction makes the sheet material of carbamate system thermoplastic elastomer (TPE) (thermoplastic polyurethane, TPU) It continuously inserts to the existing method for forming die face between rough surface roller and two pairs of rollers with enhancing film, as enhancing film, uses Thickness is the PET film of 0.100mm.
In addition, the TPU as surface layer, uses the TPU of ester type.
Making TPU, continuously extrusion molding forms surface layer for sheet by the mold of extruder, solid cooling down surface layer It before change, is continuously inserted together with the enhancing film continuously supplied with strip between rough surface roller and two pairs of rollers, to integrally Lamination.At the same time, the rough surface shape of the former die face of rough surface roller is continuously transferred on the surface on surface layer, to continuously The surface is made for the rough surface sheet material of the die face through rough surface by manufacture.
The use of its outermost layer include silicone rubber person as rough surface roller.
The integral thickness of rough surface sheet material is 0.110mm, and the thickness on surface layer is 0.010mm.
<Comparative example 2>
As enhancing film, using the PET film of thickness 0.125mm, and to the slit width of mold be adjusted and by surface layer Thickness be set as 0.050mm, in addition to this, in the same manner as comparative example 1 continuously manufacture rough surface sheet material.
The integral thickness of rough surface sheet material is 0.175mm.
<Comparative example 3>
As enhancing film, using the PET film of thickness 0.188mm, and to the slit width of mold be adjusted and by surface layer Thickness be set as 0.080mm, in addition to this, in the same manner as comparative example 1 continuously manufacture rough surface sheet material.
The integral thickness of rough surface sheet material is 0.268mm.
<The uneven evaluation of rough surface shape>
By visual observation come observe the rough surface sheet material that is manufactured in each embodiment, comparative example die face rough surface shape Unevenness, and evaluated with following benchmark.
◎:Do not see that the unevenness of rough surface shape, rough surface shape are uniform.
○:A little unevenness is seen in rough surface shape.
△:Observably see unevenness than "○" in rough surface shape.
×:See the region for not forming rough surface shape.
Furthermore in comparative example, the thickness on surface layer is smaller, and the wedging amount of rough surface roller more generates deviation, thick to more have The uneven bigger tendency of matte shape, uneven region that is excessive and generating non-transfer (formation) rough surface shape completely, then comment Valence is "×".
<Treatability is evaluated>
About the rough surface sheet material of the strip before the cutting manufactured in each embodiment, comparative example, observe by visual observation State when respective die face being set as outside and being continuously wound as web-like, with following benchmark evaluation treatability.
◎:The continuous winding 200m or more in volume wrinkle ground can not generated.
○:In the range of 100m is less than 200m, the continuous winding in volume wrinkle ground can not generated.
△:In the range of 20m is less than 100m, the continuous winding in volume wrinkle ground can not generated.
×:Volume wrinkle is just generated less than 20m, and the productivity of rough surface sheet material 1 is had an impact.
<Fish-eye number is evaluated>
The rough surface sheet material manufactured in each embodiment, comparative example is observed, to fish-eye number (a/m of per unit area2) into Row counts.Moreover, with following benchmark evaluation fish-eye numbers.
◎:Fish-eye number is 0/m2
○:Fish-eye number is more than 0/m2And it is 0.1/m2Below.
×:Fish-eye number is more than 0.1/m2
<The defect that fractures number is evaluated>
The rough surface sheet material of strip before the cutting manufactured in each embodiment, comparative example is wound up as web-like, it is then right Quantity (a/m of the per unit area of the defect that fractures generated when unwinding2) counted.Moreover, being fractureed with following benchmark evaluations Defect.
◎:The defect that fractures number is 0.06/m2Below.
○:The defect that fractures number is more than 0.06/m2And it is 0.15/m2Below.
△:The defect that fractures number is more than 0.15/m2And it is 0.40/m2Below.
×:The defect that fractures number is more than 0.40/m2
<Fissility is evaluated>
Using the rough surface sheet material manufactured in each embodiment, comparative example, by Fig. 2 (a)~Fig. 2 (c), Fig. 3 (a)~figure After the process manufacture printing resin original plate of 3 (c), the printing resin original plate from manufacture is measured with 180 ° of stripping rough surface pieces Peel strength when material.And with following benchmark evaluation fissilities.
As the photosensitive polymer combination on the basis as printing resin original plate, made using sumitomo rubber industrial (stock) The NK resins made.In addition, as reinforcing sheet, the BF/CF laminating films of sumitomo rubber industrial (stock) manufacture are used.
◎:Peel strength is 0.15N/mm hereinafter, can easily remove manually.
○:Though peel strength be more than 0.15N/mm and for 0.20N/mm hereinafter, can remove manually but compared with " ◎ " for, need Strength.
△:Though peel strength be more than 0.20N/mm and for 0.25N/mm hereinafter, can remove manually but compared with "○" for, need Strength.
×:Peel strength is more than 0.25N/mm, can not be removed manually, needs to be assisted in overburden operation.
<Overall merit>
All ◎ persons that is evaluated as are evaluated as A, will only be that ◎ and zero are evaluated as B, by only one △ and other be ◎ Or zero be evaluated as C, by △ be two and other be that ◎ or zero are evaluated as D, even if will be that one × person be evaluated as E.
It the above results are shown in 1~table of table 3.
[table 1]
[table 2]
[table 3]
According to 1~table of table 3 as a result, distinguishing:Including surface layer made of making minuteness particle be scattered in adhesive resin The rough surface sheet material of 1~embodiment of embodiment 7 is compared with 1~comparative example of comparative example 3, no flake, the unevenness of rough surface shape It is small, and treatability or fissility are excellent, and be difficult to generate the defect that fractures.In addition distinguish:Therefore, by using embodiment 1~ The rough surface sheet material of embodiment 7, can inhibit undesirable generation, to productibility manufacture well printing resin original plate, And flexographic printing version.
In addition, according to 1~embodiment of embodiment 7 as a result, distinguishing:If in view of further improving the effect, It is 2.0 μm or more and the maximum value of particle diameter distribution is 30.0 μm or less that minuteness particle, which is preferably the minimum value of particle diameter distribution,.In addition Distinguish:Enhance film thickness be preferably 0.050mm or more, wherein preferably 0.075mm or more, especially preferably 0.100mm with On, and preferably 0.300mm hereinafter, wherein be preferably 0.250mm hereinafter, especially preferably 0.200mm hereinafter, being preferably in turn 0.150mm or less.
And then distinguish:The integral thickness of rough surface sheet material is preferably 0.065mm or more, wherein preferably 0.080mm with On, especially preferably 0.120mm or more, and preferably 0.320mm hereinafter, wherein be preferably 0.285mm hereinafter, especially preferably 0.230mm is hereinafter, be preferably 0.175mm or less in turn.
<Embodiment 8>
Using the PET film (enhancing film 2) of thickness 0.188mm and the minimum value of particle diameter distribution is 2.0 μm, maximum value is 5.0 μ M, the acrylic resin particle (minuteness particle that average grain diameter is 2.8 μm, standard deviation is 0.7 μm, coefficient of variation Cv is 0.25 4) rough surface sheet material 1, in addition to this, is manufactured similarly to Example 1.
1 integral thickness of rough surface sheet material is 0.195mm, and the thickness on surface layer 5 is 0.007mm.
<Embodiment 9>
Minimum value using particle diameter distribution is 2.5 μm, maximum value is 9.0 μm, average grain diameter is 5.0 μm, standard deviation is 1.0 μm, coefficient of variation Cv be 0.20 acrylic resin particle (minuteness particle 4) make similarly to Example 8 in addition to this Make rough surface sheet material 1.
1 integral thickness of rough surface sheet material is 0.199mm, and the thickness on surface layer 5 is 0.011mm.
<Embodiment 10>
Minimum value using particle diameter distribution is 6.0 μm, maximum value is 18.0 μm, average grain diameter is 10.0 μm, standard deviation For 1.9 μm, coefficient of variation Cv be 0.19 acrylic resin particle (minuteness particle 4), in addition to this, similarly to Example 8 Manufacture rough surface sheet material 1.
1 integral thickness of rough surface sheet material is 0.208mm, and the thickness on surface layer 5 is 0.020mm.
<Embodiment 11>
Minimum value using particle diameter distribution is 10.0 μm, maximum value is 30.0 μm, average grain diameter is 18.0 μm, standard deviation The acrylic resin particle (minuteness particle 4) that σ is 3.2 μm, coefficient of variation Cv is 0.18, in addition to this, similarly to Example 8 Manufacture rough surface sheet material 1.
1 integral thickness of rough surface sheet material is 0.221mm, and the thickness on surface layer 5 is 0.033mm.
<Embodiment 12>
Minimum value using particle diameter distribution is 2.0 μm, maximum value is 13.0 μm, average grain diameter is 5.0 μm, standard deviation For 1.7 μm, coefficient of variation Cv be 0.34 acrylic resin particle (minuteness particle 4), in addition to this, similarly to Example 8 Manufacture rough surface sheet material 1.
1 integral thickness of rough surface sheet material is 0.203mm, and the thickness on surface layer 5 is 0.015mm.
<The making of liquid crystal orientation film>
Using the rough surface sheet material 1 manufactured in each embodiment, by Fig. 2 (a)~Fig. 2 (c), Fig. 3 (a)~Fig. 3's (c) Process and manufacture printing resin original plate 19, and then the printing resin original plate 19 of manufacture is processed, to manufacture Fig. 4 institutes The flexographic printing version 22 shown.
By the flexographic printing version 22 of manufacture and anilox roll (anilox roll) #220 [unit volume 6.5cc/m2] be set into In the flexible printing machine [A45 of Na Kang (NAKAN) (stock) manufactures] of liquid crystal orientation film printing.
Then, the ink [Ou Putuoma (OPTMER) of JSR (stock) manufactures of liquid crystal orientation film is supplied to flexible printing machine (registered trademark) AL17901], and print to the electrode forming surface of analog baseplate used for liquid crystal display element, later with 120 DEG C Predrying 30 minutes, to form liquid crystal orientation film.Setting thickness after the predrying of liquid crystal orientation film is set to 900A.
As analog baseplate, constructed a little and winner with the density of pixel number 420ppi using in the region of 5 inch squares. Concave-convex spacing is 3 μm~15 μm, is highly 0.3 μm~1 μm.
<The Thickness Evaluation of liquid crystal orientation film>
The state for observing the liquid crystal orientation film of the making by visual observation, with the unevenness of following benchmark evaluation thickness.
◎:Unevenness is had no in the thickness of liquid crystal orientation film, thickness is uniform.
○:A little uneven thickness is seen in liquid crystal orientation film.
△:Observably see uneven thickness than "○" in liquid crystal orientation film.
×:See the region for not forming liquid crystal orientation film.
It shows the result in table 4.
[table 4]
According to 8~embodiment of embodiment 12 of table 4 as a result, distinguishing:If as described in view of making rough surface shape Unevenness is small and forms the liquid crystal orientation film in homogeneous thickness etc. without uneven thickness using flexographic printing process, then it represents that particle diameter distribution The coefficient of variation Cv of deviation be preferably 0.35 hereinafter, especially preferably 0.25 or less.
<Embodiment 13>
Use the PET film (enhancing film 2) of thickness 0.188mm, the mangcorn of different from particle diameter distribution two kinds of minuteness particles Sub (minuteness particle 4) manufactures rough surface sheet material 1 similarly to Example 1 in addition to this.
Minuteness particle is to be combined following two kinds.
Minuteness particle A:The minimum value of particle diameter distribution is 2.0 μm, maximum value is 3.6 μm, average grain diameter is 2.8 μm, standard The acrylic resin particle that deviations are 0.3 μm, coefficient of variation Cv is 0.11.
Minuteness particle B:The minimum value of particle diameter distribution is 3.5 μm, maximum value is 6.5 μm, average grain diameter is 5.0 μm, standard The acrylic resin particle that deviations are 1.0 μm, coefficient of variation Cv is 0.20.
Minuteness particle A, minuteness particle B allotment ratio to be set to be by quality ratio A: B=65: 35, minuteness particle A exists Shared ratio is 65 mass % in the total amount of stuff and other stuff.
Including the whole coefficient of variation Cv of the stuff and other stuff of minuteness particle A, two kinds of minuteness particle B is 0.34.In addition, thick The integral thickness of matte sheet material 1 is 0.199mm, and the thickness on surface layer 5 is 0.011mm.
<Embodiment 14>
It is made similarly to Example 13 in addition to this using the stuff and other stuff (minuteness particle 4) of following two kinds of minuteness particles Make rough surface sheet material 1.
Minuteness particle A:The minimum value of particle diameter distribution is 4.0 μm, maximum value is 6.0 μm, average grain diameter is 5.0 μm, standard The acrylic resin particle that deviations are 0.4 μm, coefficient of variation Cv is 0.08.
Minuteness particle B:The minimum value of particle diameter distribution is 5.0 μm, maximum value is 9.0 μm, average grain diameter is 7.0 μm, standard The acrylic resin particle that deviations are 1.4 μm, coefficient of variation Cv is 0.20.
Minuteness particle A, minuteness particle B allotment ratio to be set to be by quality ratio A: B=85: 15, minuteness particle A exists Shared ratio is 85 mass % in the total amount of stuff and other stuff.
Including the whole coefficient of variation Cv of the stuff and other stuff of minuteness particle A, two kinds of minuteness particle B is 0.18.In addition, thick The integral thickness of matte sheet material 1 is 0.203mm, and the thickness on surface layer 5 is 0.015mm.
<Embodiment 15>
It is made similarly to Example 13 in addition to this using the stuff and other stuff (minuteness particle 4) of following two kinds of minuteness particles Make rough surface sheet material 1.
Minuteness particle A:The minimum value of particle diameter distribution is 5.7 μm, maximum value is 8.3 μm, average grain diameter is 7.0 μm, standard The acrylic resin particle that deviations are 0.5 μm, coefficient of variation Cv is 0.07.
Minuteness particle B:The minimum value of particle diameter distribution is 3.1 μm, maximum value is 13.0 μm, average grain diameter is 10.0 μm, mark The acrylic resin particle that quasi- deviations are 1.9 μm, coefficient of variation Cv is 0.19.
Minuteness particle A, minuteness particle B allotment ratio to be set to be by quality ratio A: B=75: 25, minuteness particle A exists Shared ratio is 75 mass % in the total amount of stuff and other stuff.
Including the whole coefficient of variation Cv of the stuff and other stuff of minuteness particle A, two kinds of minuteness particle B is 0.21.In addition, thick The integral thickness of matte sheet material 1 is 0.208mm, and the thickness on surface layer 5 is 0.020mm.
<Embodiment 16>
It is made similarly to Example 13 in addition to this using the stuff and other stuff (minuteness particle 4) of following two kinds of minuteness particles Make rough surface sheet material 1.
Minuteness particle A:The minimum value of particle diameter distribution is 2.0 μm, maximum value is 4.0 μm, average grain diameter is 2.8 μm, standard The acrylic resin particle that deviations are 0.7 μm, coefficient of variation Cv is 0.25.
Minuteness particle B:The minimum value of particle diameter distribution is 4.0 μm, maximum value is 6.0 μm, average grain diameter is 5.0 μm, standard The acrylic resin particle that deviations are 0.4 μm, coefficient of variation Cv is 0.08.
Minuteness particle A, minuteness particle B allotment ratio to be set to be by quality ratio A: B=10: 90, minuteness particle A exists Shared ratio is 10 mass % in the total amount of stuff and other stuff.
Including the whole coefficient of variation Cv of the stuff and other stuff of minuteness particle A, two kinds of minuteness particle B is 0.17.In addition, thick The integral thickness of matte sheet material 1 is 0.196mm, and the thickness on surface layer 5 is 0.008mm.
<The presence or absence of Moire fringe is evaluated>
It is manufactured using the rough surface sheet material 1 manufactured in each embodiment and according to the process of " making of liquid crystal orientation film " Flexographic printing version 22, by the electrode forming surface of the printing of flexographic printing version 22 of manufacture to analog baseplate used for liquid crystal display element On, later with 120 DEG C of predryings 30 minutes, to form liquid crystal orientation film.Setting thickness after the predrying of liquid crystal orientation film It is set to
As analog baseplate, constructed a little and winner with the density of pixel number 420ppi using in the region of 5 inch squares. Concave-convex spacing is 3 μm~15 μm, is highly 0.3 μm~1 μm.
Moreover, observation is formed by the state of liquid crystal orientation film by visual observation, with having for following benchmark evaluation Moire fringes Nothing.
◎:Moire fringe is had no in liquid crystal orientation film, thickness is uniform.
○:A little Moire fringe is seen in liquid crystal orientation film.
△:Observably see Moire fringe than "○" in liquid crystal orientation film.
×:Observably see Moire fringe than " △ " in liquid crystal orientation film.
It shows the result in table 5.
[table 5]
According to 13~embodiment of embodiment 16 of table 5 as a result, distinguishing:If especially considering used for liquid crystal display element Substrate electrode forming surface on formed the liquid crystal orientation film without Moire fringe, then be used as minuteness particle, it is preferable to use grain size It is distributed the stuff and other stuff of two kinds of different minuteness particles.
In addition distinguish, if in view of further promoting the effect, the coefficient of variation Cv of stuff and other stuff entirety is preferred To be 0.15 or more in described 0.35 range below, wherein preferably 0.18 or more, especially preferably 0.20 or more.

Claims (10)

1. a kind of rough surface sheet material, which is characterized in that be used for the manufacture of printing resin original plate, and made including at least surface The enhancing film of surface layer at the die face through rough surface and the back side set on the surface layer, the surface layer include adhesive tree Fat and the minuteness particle being scattered in described adhesive resin, and at least part of the minuteness particle is from the surface layer Surface protrudes, to which the surface is made into the die face through rough surface.
2. rough surface sheet material according to claim 1, wherein the minimum value of the particle diameter distribution of the minuteness particle is 2.0 μm or more, and the maximum value of the particle diameter distribution is 30.0 μm or less.
3. rough surface sheet material according to claim 1 or 2, wherein the deviation of the expression particle diameter distribution of the minuteness particle Coefficient of variation Cv be 0.35 or less.
4. rough surface sheet material according to claim 1 or 2, wherein the minuteness particle is different two kinds of particle diameter distribution The stuff and other stuff of minuteness particle.
5. rough surface sheet material according to claim 4, wherein the deviation of the expression particle diameter distribution of the stuff and other stuff Coefficient of variation Cv is 0.35 or less.
6. rough surface sheet material according to any one of claim 1 to 5, wherein the thickness of the enhancing film is 0.075mm or more and 0.250mm or less.
7. rough surface sheet material according to any one of claim 1 to 6, wherein the enhancing film, described adhesive tree Fat and the minuteness particle include the material for having permeability to active ray.
8. a kind of manufacturing method of printing resin original plate, which is characterized in that including following process:Make photosensitive resin composition In the state that the layer of object contacts the die face of rough surface sheet material according to any one of claim 1 to 7, to described Layer is removed from the die face after hardening it using the irradiation of active ray, is thus contacted with the die face in the layer Face on transfer the rough surface shape of the die face, to which the face to be made to the version surface through rough surface.
9. a kind of manufacturing method of flexographic printing version, which is characterized in that including following process:It will utilize according to claim 8 institute The hot excision of corresponding portion of the printing resin original plate for the manufacturing method manufacture stated and form pincers for being installed in printing machine Enter portion and chuck hole.
10. a kind of manufacturing method of liquid crystal display element, which is characterized in that including following process:It is wanted using using according to right It seeks the flexographic printing version that the manufacturing method described in 9 manufactures and liquid crystal orientation film is formed by flexographic printing.
CN201810077579.XA 2017-02-20 2018-01-26 Roughened sheet and use thereof Active CN108454254B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017029365 2017-02-20
JP2017-232077 2017-12-01
JP2017232077A JP6660568B2 (en) 2017-02-20 2017-12-01 Roughened sheet, method for producing printing resin original plate using the same, and method for producing flexographic printing plate
JP2017-029365 2017-12-27

Publications (2)

Publication Number Publication Date
CN108454254A true CN108454254A (en) 2018-08-28
CN108454254B CN108454254B (en) 2021-06-22

Family

ID=63238962

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810077579.XA Active CN108454254B (en) 2017-02-20 2018-01-26 Roughened sheet and use thereof

Country Status (1)

Country Link
CN (1) CN108454254B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114401847A (en) * 2019-09-20 2022-04-26 东洋纺株式会社 Flexographic printing plate precursor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655871A (en) * 1992-06-11 1994-03-01 Fuji Photo Film Co Ltd Production of supporter for planographic plate
CN101272913A (en) * 2005-09-30 2008-09-24 株式会社新克 Gravure plate-making roll and manufacturing method thereof
CN103144458A (en) * 2011-12-06 2013-06-12 住友橡胶工业株式会社 Resin original plate for printing and method for manufacturing the same
CN103909757A (en) * 2013-01-09 2014-07-09 住友橡胶工业株式会社 Flexible printed circuit board and manufacturing method thereof and method for manufacturing substrate for liquid crystal panel
CN105751670A (en) * 2015-01-07 2016-07-13 住友橡胶工业株式会社 Production method of resin original board used for printing and flexible printed circuit board
JP2017019142A (en) * 2015-07-08 2017-01-26 住友ゴム工業株式会社 Flexographic printing plate, method for producing the same, and method for producing a liquid crystal display element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655871A (en) * 1992-06-11 1994-03-01 Fuji Photo Film Co Ltd Production of supporter for planographic plate
CN101272913A (en) * 2005-09-30 2008-09-24 株式会社新克 Gravure plate-making roll and manufacturing method thereof
CN103144458A (en) * 2011-12-06 2013-06-12 住友橡胶工业株式会社 Resin original plate for printing and method for manufacturing the same
CN103909757A (en) * 2013-01-09 2014-07-09 住友橡胶工业株式会社 Flexible printed circuit board and manufacturing method thereof and method for manufacturing substrate for liquid crystal panel
CN105751670A (en) * 2015-01-07 2016-07-13 住友橡胶工业株式会社 Production method of resin original board used for printing and flexible printed circuit board
JP2017019142A (en) * 2015-07-08 2017-01-26 住友ゴム工業株式会社 Flexographic printing plate, method for producing the same, and method for producing a liquid crystal display element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114401847A (en) * 2019-09-20 2022-04-26 东洋纺株式会社 Flexographic printing plate precursor
CN114401847B (en) * 2019-09-20 2024-06-07 东洋纺Mc株式会社 Flexographic printing plate precursor

Also Published As

Publication number Publication date
CN108454254B (en) 2021-06-22

Similar Documents

Publication Publication Date Title
US9028951B2 (en) Magnetic receptive printable media
CN101416282A (en) Surface protection tape for semiconductor wafer backgrinding, and substrate film for said surface protection tape
CN103144458B (en) Printing resin original plate and manufacture method thereof
WO2001015896A1 (en) Releasing laminated film
CN108454254A (en) Rough surface sheet material and its purposes
US20040009370A1 (en) Magnet sheet for display and method of manufacturing the same
CN104076431A (en) Composite light guide plate, composite light guide plate manufacturing method and manufacturing device thereof
CN113710377B (en) Method for supplying or removing the sliding treatment object to the surface of the sliding object
TW201501899A (en) Process film, method for using the same, method for manufacturing molded article, and molded product
TWI729262B (en) Roughened sheet, method for manufacturing resin precursor for printing using the same, and method for manufacturing flexographic printing plate
CN110843373B (en) Flexographic printing plate and method for manufacturing liquid crystal display element using same
CN107867101A (en) The preparation method of the preparation method of resin original plate, the preparation method of galley and liquid crystal display cells
CN107031152A (en) Mat surface sheet material with and application thereof
US20220177745A1 (en) Film with structured adhesive and structured liner and method of making
CN107053804A (en) Mat surface sheet material and its manufacture method with and application thereof
TWI488756B (en) Method for producing thermoreversible recording medium and apparatus for producing the same
JP5083659B2 (en) Release paper manufacturing method and release paper manufacturing apparatus
KR102511351B1 (en) Release film patterned and Tape comprising the same
KR101282433B1 (en) Apparatus and method for producing film
JP7513873B2 (en) Sliding Device
CN112437822A (en) Fabric printing method for producing glittering fabric
WO2020222311A1 (en) Method for supplying or removing sliding treatment material to or from surface of sliding workpiece
JP2003273169A (en) Manufacturing method for conductive sheet for tab space tape

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant