CN108202518A - Sputter polyester laminate and its manufacturing method - Google Patents
Sputter polyester laminate and its manufacturing method Download PDFInfo
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- CN108202518A CN108202518A CN201611185994.4A CN201611185994A CN108202518A CN 108202518 A CN108202518 A CN 108202518A CN 201611185994 A CN201611185994 A CN 201611185994A CN 108202518 A CN108202518 A CN 108202518A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- Laminated Bodies (AREA)
Abstract
The present invention is a kind of related sputter processing polyester laminate, the polyester film and the first hardening coating layer and the second hardening coating layer positioned at the three polyester film both sides being laminated out being laminated out it includes three, wherein three polyester film being laminated out has a middle layer with being located at the first surface layer and the second surface layer of the middle layer both sides, and sticking grain is stained in first surface layer and the second surface layer added with anti-.The sputter processing of the present invention is available for users to processing refractive index adjustment layer, ITO conductive layer above with polyester laminate, and becomes the touch-control transparent conductive film for having high dimensional stability (low thermal shrinkage behavior), the precipitation of low oligomer, workability, superior optical characteristics and electric conductivity.
Description
Technical field
The present invention is a kind of related sputter processing polyester laminate, the polyester film being laminated out it includes three and is located at
The hardening coating layer of the three polyester film both sides being laminated out, wherein three polyester film being laminated out have a middle layer and position
In the first surface layer of the middle layer both sides and the second surface layer, and sticking grain is stained in first surface layer with the second surface layer added with anti-.This
The sputter processing of invention is available for users to processing refractive index adjustment layer, ITO conductive layer above with polyester laminate, and as tool
It is used for the touch-control of high dimensional stability (low thermal shrinkage behavior), the precipitation of low oligomer, workability, superior optical characteristics and electric conductivity
Transparent conductive film.
Background technology
Demand of the opto-electronics to transparent conductive film is growing day by day, and transparent conductive film is worn because being provided simultaneously with excellent visible ray
Permeability and electric conductivity, and it is widely used in the photoelectricity related industry such as display, touch panel and solar cell.Normally transparent is led
It is more than 80% and piece resistance value (Sheet Resistance) less than 1000 Ω/ that electrolemma, which refers to have visible ray penetration, generally
The base material of transparent conductive film can use transparent polyester film, and this polyester film need to have have low turbidity, high transparency and will
Has good adherence.
The polyester film of twin shaft extension is commonly used to do due to having the stability for having good engineering properties and size
For the base material of optical film, but film surface cleanliness factor in itself and defect are such as scraped injure foreign matter require it is high, therefore in addition to needing
Have outside the raw material and operating environment of high-quality, in order to solve the problems, such as scratch, meeting addition manner addition within film surface is organic
Or inorganic particulate or polyester film slip in itself is increased with coating method, to promote processing workability.
Since transparent conductive film can process refractive index adjustment layer, ITO conductive layer and line pattern above it, so base material
Dimensional stability is to most important in the stability that uses；Further, since base material is polyphosphazene polymer ester film, so holding after heating
The precipitation and generation of oligomer are tended to have, it is all the pollution for belonging to foreign matter that this, which applies refractive index adjustment layer, ITO conductive layer in downstream,
Influence whether the optics and conduction property of finished product.The processing of precoated shet can be carried out again in the both sides of polyester film base material, to add
The processing of strong subsequent curing coating layer then, also has the full light transmittance and mist degree of integral material required.
Invention content
The purpose of the present invention is to provide the polyester laminate that a kind of quality meets sputter purposes, have have high transparency,
The twin shaft extension polyester laminate of adherence between good winding operation effectiveness and high level.
Sputter of the present invention polyester laminate, the polyester film being laminated out comprising three and three is laminated out positioned at this
Polyester film both sides first hardening coating layer and second hardening coating layer, wherein three polyester film being laminated out have one
Middle layer and the first surface layer and the second surface layer for being located at the middle layer both sides, and first surface layer and the second surface layer are stained with added with anti-
Stick particle.
In an embodiment, the thickness of three polyester film being laminated out is between 12~350 μm.,
In an embodiment, the main material type of three polyester film being laminated out is selected from polyethylene terephthalate, third
Olefin(e) acid ester, makrolon, polyethylene naphthalate or its copolymer.
In an embodiment, which formed by polyester, the first surface layer and second
Surface layer is to be stained with glutinous agent composition with anti-by polyester and formed, and wherein the thickness proportion of middle layer and surface layer is 10:1~50:1.
In an embodiment, the first hardening coating layer and second its one of hardening coating layer are transparent hard coating layer,
Another one is the anti-hardening coating layer for being stained with glutinous agent particle of addition, and two layers of thickness is respectively 1~5 μm.
In an embodiment, the grain size of the anti-sticky agent particle is 0.1~5 μm.
In an embodiment, percent thermal shrinkage is at 150 DEG C, and after 30min is toasted, longitudinal and transverse direction all maintains 0.5%
Below.
In an embodiment, the particle concentration for making an addition to the surface layer of the polyester film is between 5wt% 0.01, this adds
It is and the friction coefficient of the laminate between 1wt% 0.01 to add the anti-particle concentration of hardening coating layer for being stained with glutinous agent particle
It is below 0.5.
In an embodiment, full light transmittance is more than 92%, and mist degree is below 5%.
To reach this purpose, the polyester laminate of the present invention be based on polyester base material, and this base material it is two-sided on
It carries out chemical application processing and hardens glue-line adherence to increase it, wherein being added to lubrication prescription particle increases the effect of anti-adhesion,
To provide the required processing slip in roll-to-roll production.
Polyester film manufacture be with polyester and additive particles mixing after, through melting be laminated out by T-shaped mould mouth three after,
Rapid cooling is attached in cooling wheel into after film, first passes around and is longitudinally extended area, by the way that idler wheel speed discrepancy is driven to carry out longitudinal direction
Extension carries out two-sided liquid using coating machine after being longitudinally extended and is coated with, enters be laterally extended with baking oven area, profit later
Thermal energy during with extension carries out liquid drying.
When being laterally extended area, film is clamped by both sides clip wheel and is laterally extended, centre is by preheating, extension, knot
The stages such as brilliant, thermal finalization and cooling and obtain double shaft extensioning film, while in crystallization and heat set zone, by control temperature,
The parameters such as air quantity, extension speed and extension ratio, the dimensional stability that can have reached, low warpage, low thermal shrinkage and low oligomerization
The characteristics such as object precipitation.
Particle is added in polyester film and can reach to resist and is stained with glutinous effect, is to be extruded altogether with A/B/A, (A layers) add on surface layer
The mode of particle is added to carry out, and the wherein selection of the control of skin depth, particle kind and shape, the size of particle and concentration etc.
Parameter can be adjusted according to well known mode.
The product thickness of holostrome polyester film may be 12 μm~350 μm, wherein middle layer (main layer) and first or the
The thickness proportion on two surface layers (skin layers) can be 1~50 times, and particle diameter is for process operation and optical characteristics all shadows
It rings, particle is too small, is unable to reach required surface roughness, the too big translucency that can then seriously affect film of particle.Particle
Average Particle Diameters may by 0.1 μm~10 μm or even bigger, preferably 0.1~5 μm, be more preferably then 0.5~3 μm.Addition
Amount can also seriously affect its surface roughness and translucency, therefore additive amount usually accounts for the 0.01~5wt% on surface layer, if being less than
0.01wt% is then unable to reach surface roughness demand, and higher than 5wt%, then turbidity is too high, influences translucency, therefore preferably adds
It measures as 0.01~5wt%, is more preferably then 0.05~1wt%.
The main material type of three polyester films being laminated out of the present invention is selected from polyethylene terephthalate (PET), propylene
Acid esters (acrylic ester), makrolon (PC), polyethylene naphthalate (PEN) or its copolymer, also can be used other
Well known polyester type.
It is that polyester film carries out heated baking after twin shaft is extended, sample size is 40cm* in dimensional stability part
40cm, baking condition are 150 DEG C, 30min, after baking, then measure sample material warpage to four corners of sample and leave plane
Highly, it is desirable that numerical value is within 5mm；And carry out percent thermal shrinkage measurement, the percent thermal shrinkage of longitudinal and transverse direction to toasting sample
Requiring will be below 0.5%.
According to the polyester film obtained by above-mentioned preparation, the coating of hardening glue-line is further carried out in its both sides, wherein in order to
Slimming and optical characteristics requirement, hardening coating thickness are controlled within 1~5 μm.In order to strengthen coiled material winding property, also may be used
Added with anti-sticky particle to help to wind in one of hardening coating layer, to the decline of mist degree and full light transmittance after the completion of coating
Promotion it is also all helpful.In the case of in one of hardening coating layer added with anti-sticky particle, additive amount is to account for this
0.01~1wt% of layer.
The sputter of the present invention has good frictional behavior with polyester laminate, and friction coefficient is 0.5 hereinafter, therefore can be easy
In processing and suitable for winding.
Fig. 1 shows the schematic diagram in relation to sputter polyester film structure of the present invention.The structure of three polyester films being laminated out
By the middle layer (main extrusion layer) of (1) polyester film and (2) and first and second surface layer (pair extrudes layer) of (3) polyester film
It collectively constitutes, (4) are first and second hardening coating layer with (5), wherein (4) harden coating layer for high transparency, (5) are then addition
There is the anti-hardening coating layer for being stained with sticking grain；(6) sticking grain is stained with to be anti-with (7), wherein (6) are when polyester raw material hot extrusion technique
Addition, (7) during hardening glue-line coating process then to add.
Description of the drawings
Fig. 1 is the structure diagram of sputter polyester laminate.
Main element symbol description：
1：The middle layer of polyester film
2：First surface layer of polyester film
3：Second surface layer of polyester film
4：Transparent hard coating layer
5：The anti-hardening coating layer for being stained with sticking grain of addition
6：It extrudes and is stained with sticking grain with anti-
7：Coating is stained with sticking grain with anti-
Specific embodiment
It will hereinafter be further illustrated the present invention with unrestricted example.
【Embodiment 1】
Polyester raw material is passed through after drying crystalline by extruder, after being melted at 270 DEG C in a manner of three layers of A/B/A co-extrusion pressures
Extrude, generation film be quickly cooled down with 25 DEG C of cooling wheel, then via 100 DEG C of heating, 3.2 times be longitudinally extended and 120 DEG C of heating,
4 times are laterally extended, and carry out thermal finalization with 180 DEG C to obtain the polyester film of 50 μm of thickness again later, wherein A layers contains for polyester
Using concentration account for 1 μm of polyester 0.01wt% it is anti-be stained with glutinous agent particle, and B layer are then 100% polyester, and in discharge thickness A：B：
A is 1：20：It is made in the case of 1, can obtain the polyester film of light transmittance 90%, mist degree 0.1%.
Hardening coating layer processing is carried out in the two sides of the polyester film of above-mentioned gained in a manner of slot die again, top layer is
The pure acrylate hardening resin of any particle is not added, and underlying layer resists for 1 μm added with 0.1wt% is stained with glutinous agent particle third
Coiled material to be helped to wind in olefin(e) acid hardening resin, upper and lower two layers of thickness is respectively 1 μm, and the hardening that can obtain membrane material case hardness H gathers
Ester laminate.
The measurement mode of the full light percent of pass of laminate, mist degree and hardness is measured in a manner of as be described hereinafter.
【Embodiment 2】
A layers of addition concentration are changed to other than 0.1wt%, are made in the same manner as example 1, can obtain complete
Light percent of pass 88%, mist degree 1.0%, membrane material case hardness H polyester laminate.
【Embodiment 3】
A layers of addition concentration are changed to 0.1wt%, the thickness ratio of surface layer A layers and B layers of middle layer is changed to A：B：A is 1：
10：It other than 1, is made in the same manner as example 1, can obtain full light percent of pass 86%, mist degree 2.5%, membrane material
The polyester laminate of case hardness H.
【Embodiment 4】
A layers of addition concentration are changed to 0.1wt%, the thickness ratio of surface layer A layers and B layers of middle layer is changed to A：B：A is 1：
50：It other than 1, is made in the same manner as example 1, can obtain full light percent of pass 89%, mist degree 0.7%, membrane material
The polyester laminate of case hardness H.
【Embodiment 5】
A layers of addition concentration are changed to 0.1wt%, addition particle diameter is changed to other than 0.1 μm, with 1 phase of embodiment
Same mode is made, and can obtain the polyester laminate of full light percent of pass 89%, mist degree 0.5%, membrane material case hardness H.
【Embodiment 6】
Heat setting temperature changes other than 220 DEG C of progress, to be made in the same manner as example 1, can obtain full light
Line percent of pass 89%, mist degree 1.0%, membrane material case hardness H polyester laminate.
【Embodiment 7】
Heat setting temperature changes other than 240 DEG C of progress, to be made in the same manner as example 1, can obtain full light
Line percent of pass 87%, mist degree 5.0%, membrane material case hardness H polyester laminate.
【Embodiment 8】
Upper and lower hardened layer coating waste water thickness is changed to other than each 5 μm, is made in the same manner as example 1,
It can obtain the polyester laminate of full light percent of pass 87%, mist degree 4.3%, membrane material case hardness 2H.
【Embodiment 9】
Polyester base film thickness after extension is changed to other than 23 μm, is made in the same manner as example 1, can be obtained
To full light percent of pass 89%, mist degree 0.5%, membrane material case hardness H polyester laminate.
【Embodiment 10】
Polyester base film thickness after extension is changed to other than 250 μm, is made in the same manner as example 1, it can
Obtain the polyester laminate of full light percent of pass 89%, mist degree 2.0%, membrane material case hardness H.
【Embodiment 11】
A layers of addition concentration are changed to 0.1wt%, particle addition grain size in surface layer is changed to other than 5 μm, with embodiment 1
Identical mode is made, and obtains the polyester laminate of full light percent of pass 82%, mist degree 15.0%, membrane material case hardness H.
【Comparative example 1】
A layers of addition concentration are changed to other than 5wt%, is made in the same manner as example 1, obtains full light
Percent of pass 70%, mist degree 50.0%, membrane material case hardness H polyester laminate.
【Comparative example 2】
A layers of addition concentration are changed to 0.1wt%, particle addition grain size in surface layer is changed to other than 6 μm, with embodiment 1
Identical mode is made, and obtains the polyester laminate of full light percent of pass 78%, mist degree 25.0%, membrane material case hardness H.
The full light percent of pass of laminate and the measurement mode of mist degree
Laminate is cut into 10cm*5cm rectangle sheets, then be placed in mist degree machine, model：Nippon Denshoku NDH
2000N is measured to obtain full light percent of pass and mist degree.
The measurement mode of laminate hardness
Laminate hardness is detected with pencil hardometer, model：Sample is cut into 20cm*15cm and put by Yasuda 553-M
It is unified to be exerted a force with 750g loadings on board table top, then with different hardness pencil in laminate surface scratch, whether to be scratched
Distinguish its surface pencil hardness.
From the point of view of Comparative Examples 1 and 2 and embodiment 1, surface layer particle addition excessive concentration or grain size are excessive, for optical characteristics
There is detrimental effect, the injuries such as mist degree increases and full light percent of pass reduces can be caused；From the point of view of embodiment 2,3,4, pass through
The middle layer of polyester film and the thickness proportion on surface layer are adjusted, can also influence the optical property of material, if skin depth thickening accounts for
Compare it is high, it will cause the rising of membrane material mist degree, if intermediate layer thickness thickeies and reduces the accounting of skin depth and can then obtain
Higher full light percent of pass and relatively low mist degree, but thing followed harmful effect is then that the uniformity controlling of mist degree is not easy,
Easily there is the phenomenon that mist degree is uneven.
From the point of view of embodiment 5, when the smaller particle of grain size has been used to make an addition to surface layer, lower mist degree is can obtain, but
The more puckery situation in membrane material surface is had occurred when extension is batched, and related immediately cause scratches more and the defects of batching salient point and produce
It is raw；From the point of view of embodiment 6,7, when higher temperature is used to carry out thermal finalization, in the case of 240 DEG C of heat setting temperature, hair
Given birth to crystallization albefaction, mist degree rises and the situations such as wavy warpage of being heated, in 220 DEG C of heat setting temperature, can acquire relatively steady
Fixed thermal contraction change in size and relatively low heated white powder amount of precipitation；From the point of view of embodiment 8, thin hardened layer is thickeied to 5 μm
When, because also added with the anti-situation be stained with glutinous agent, mist degree can be caused to rise in hardened layer, but on pencil hardness
It helps, the hardness of more than 2H can be reached.
From the point of view of embodiment 9,10, when change polyester layer thickness when, at 12 μm because thinner thickness can obtain it is relatively low
Mist degree, when thickness increases to 350 μm, mist degree can reach more than 3%；At 1 aspect of comparative example, added when by surface layer particle
It when concentration increases to 5%, has mist degree and is substantially increased situation, light percent of pass can also be damaged；In the feelings of embodiment 11
In condition, after the grain size of the surface layer particle of addition is increased to 5 μm, the existing rising of mist degree and light transmittance decline situation, but still belong to
Tolerance interval.In the case of comparative example 2, after the grain size of the surface layer particle of addition is increased to 6 μm, mist degree is further disliked
Change, be substantially increased to 25% or so, in addition light percent of pass also drops to 78% or so.
For illustrative purposes, the present invention has been specified in, although it is understood that the purpose that above-mentioned details is only to illustrate, and
Those skilled in the art impose variation, neither de- spirit and scope of the present invention, present invention is limited only by
Claim.
Claims (9)
1. a kind of sputter polyester laminate, the polyester film being laminated out it includes three and positioned at three polyester being laminated out
First hardening coating layer of film both sides and the second hardening coating layer, which is characterized in that three polyester film being laminated out has one
Middle layer and the first surface layer and the second surface layer for being located at the middle layer both sides, and first surface layer and the second surface layer are stained with added with anti-
Stick particle.
2. sputter as described in claim 1 polyester laminate, which is characterized in that the thickness of three polyester film being laminated out
It is between 12~350 μm.
3. sputter as described in claim 1 polyester laminate, which is characterized in that the main original of three polyester film being laminated out
Material type is selected from polyethylene terephthalate, acrylate, makrolon, polyethylene naphthalate or its copolymer.
4. sputter as claimed in claim 2 or claim 3 polyester laminate, which is characterized in that in three polyester film being laminated out
Interbed is formed by polyester, and the first surface layer and the second surface layer are to be stained with glutinous agent composition with anti-by polyester and formed, wherein centre
The thickness proportion on layer and surface layer is 10:1~50:1.
5. sputter as described in claim 1 polyester laminate, which is characterized in that the first hardening coating layer and the second hardening
Its one of coating layer is transparent hard coating layer, and another one is the anti-hardening coating layer for being stained with glutinous agent particle of addition, and two layers of thickness is divided
It Wei not be 1~5 μm.
6. sputter as described in claim 1 polyester laminate, which is characterized in that the grain size of the anti-sticky agent particle is 0.1
~5 μm.
7. sputter as described in claim 1 polyester laminate, which is characterized in that at 150 DEG C, 30min dries its percent thermal shrinkage
After roasted, longitudinal and transverse direction all maintains less than 0.5%.
8. sputter as claimed in claim 5 polyester laminate, which is characterized in that make an addition to the grain on the surface layer of the polyester film
Sub- concentration be 0.01 between 5wt%, the addition resist the particle concentration for the hardening coating layer for being stained with glutinous agent particle be 0.01 to
Between 1wt%, and the friction coefficient of the laminate is below 0.5.
9. sputter as described in claim 1 polyester laminate, which is characterized in that its full light transmittance is more than 92%, mist degree
Below 5%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611185994.4A CN108202518A (en) | 2016-12-20 | 2016-12-20 | Sputter polyester laminate and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185994.4A CN108202518A (en) | 2016-12-20 | 2016-12-20 | Sputter polyester laminate and its manufacturing method |
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