CN108527986A - A kind of scratch resistant optical arc face protective film of the low rainbow line of high transparency and preparation method - Google Patents
A kind of scratch resistant optical arc face protective film of the low rainbow line of high transparency and preparation method Download PDFInfo
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- CN108527986A CN108527986A CN201710123822.2A CN201710123822A CN108527986A CN 108527986 A CN108527986 A CN 108527986A CN 201710123822 A CN201710123822 A CN 201710123822A CN 108527986 A CN108527986 A CN 108527986A
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- protective film
- silica gel
- membrane
- pressure
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- 230000001681 protective effect Effects 0.000 title claims abstract description 41
- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 28
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 104
- 239000012528 membrane Substances 0.000 claims abstract description 62
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000000741 silica gel Substances 0.000 claims abstract description 45
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 45
- 238000000576 coating method Methods 0.000 claims abstract description 39
- 239000011241 protective layer Substances 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000007790 scraping Methods 0.000 claims abstract description 33
- 238000007731 hot pressing Methods 0.000 claims abstract description 9
- 239000002346 layers by function Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- -1 polysiloxanes Polymers 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 229920002050 silicone resin Polymers 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 210000004379 membrane Anatomy 0.000 claims 11
- 210000002469 basement membrane Anatomy 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 238000013022 venting Methods 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
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- B32B2307/584—Scratch resistance
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses scratch resistant optical arc face protective films of the low rainbow line of a kind of high transparency of screen protection technical field of membrane and preparation method thereof, including basal layer and functional layer；The basal layer is release bottom membrane, and the functional layer includes pressure-sensitive layer of silica gel, base membrane layer, anti-scraping coating, protective layer successively along the separate basal layer direction；The preparation method includes：It is coated with the anti-scraping coating, the pressure-sensitive layer of silica gel of other side coating in the side of the base membrane layer, then release bottom membrane is fitted in the pressure-sensitive layer of silica gel, protective layer is fitted on anti-scraping coating, forms protection membrane structure；The protection membrane structure is subjected to truncation, hot pressing, punching molding.The present invention exhausts the air between protective film and screen by pressure-sensitive silica gel floor height venting quality compared with prior art, and is equipped with anti-scraping coating, plays the role of anti-scratch, and rub resistance achievees the effect that protect screen.
Description
Technical field
The present invention relates to a kind of scratch resistant optical arc face protective film of the low rainbow line of high transparency and preparation methods, belong to electronics production
Product show protection especially cambered surface screen protection field.
Background technology
With the fast development of intelligent wearable device technology, cambered surface screen application in electronic product especially TV, computer,
It is also increasingly wider on mobile phone.Cambered surface screen has the characteristics that：
Its weight of cambered surface screen is small, and power is low, solves the problems, such as continuation of the journey to a certain extent；
Cambered surface screen is also more in line with ergonomic designs, wear comfort higher；
Cambered surface screen has very high identification and face value, is more preferably experienced to consumer；
Cambered surface screen has rational radian, meets human retina radian, reads and observation is also more three-dimensional；
Cambered surface screen is more comfortable to single hand grip, reduces the distance that thumb touches screen, more preferably meets large screen list
The demand of hand operation.
The present invention exactly designs for cambered surface screen protection.
Invention content
For the drawbacks described above of the prior art, the object of the present invention is to provide a kind of low scratch resistant optical arcs of rainbow line of high transparency
Face protective film and preparation method overcome the high unyielding disadvantage of PET silicone protective films deflection common in the prior art.
The purpose of the present invention is what is be achieved through the following technical solutions：
In a first aspect, a kind of low scratch resistant optical arc face protective film of rainbow line of high transparency of present invention offer, including basal layer
And functional layer；The basal layer is release bottom membrane, and the functional layer includes pressure-sensitive silicon successively along the separate basal layer direction
Glue-line, base membrane layer, anti-scraping coating, protective layer.
Preferably, in the protective film, the thickness of release bottom membrane is 36-50 μm, and the thickness of pressure-sensitive layer of silica gel is 35-45
μm, the thickness of base membrane layer is 90-110 μm, and the thickness of anti-scraping coating is 3-5 μm, and the thickness of protective layer is 36-50 μm.
Preferably, the protective layer includes protection glue-line, protective layer base successively along the separate basal layer direction；It is described
Protect glue-line, the ratio between the thickness of protective layer base is 1：(3-5).
Preferably, the surface depressions of the base membrane layer form several elongated slots；The elongated slot along its longitudinal axis direction in base membrane layer
Linear extension；On the surface of same base membrane layer, the y direction of elongated slot is consistent.
Preferably, on the surface of different base membrane layers, the y direction of the elongated slot intersects.
Preferably, on the direction of cross section, the opening width of the elongated slot is less than its bottom.
Preferably, the width of the opening of the elongated slot is 2-10 μm, the depth of the elongated slot is 5-10 μm.
Preferably, on the direction of cross section, the elongated slot is at trapezoidal or arc-shaped.
Preferably, described trapezoidal for isosceles trapezoid.
Preferably, the base angle of the isosceles trapezoid is 45° angle.
Preferably, the material of the protective layer base includes PET, PP, PE etc., preferably PET；The material of the protection glue-line
Matter is pressure sensitive adhesive, including silica gel, acrylic glue etc., preferably silica gel.
Preferably, the anti-scraping coating is the hardening coat of ultraviolet curing, case hardness >=2H, and abrasion resistance reaches
1KG counterweight #0000 2000 no markings of steel wool, 99 ° of water droplet degree ＞.
Preferably, the selection of the light transmittance ＞ 90% of the base membrane layer, the base membrane layer are PET base material.
Preferably, the viscous force of the pressure-sensitive layer of silica gel is in 0-100g/inch.If viscous force is overweight, protective film is attached at
When cambered surface screen, since viscosity is laid particular stress on, user's feel when tearing stripping is laid particular stress on, and experience is poor；Meanwhile exhaust performance is deteriorated,
Easy to produce bubble etc..
Preferably, the raw material type and its weight content of the pressure-sensitive layer of silica gel are：80-100 parts of organopolysiloxane,
0.5-0.8 parts of silane coupling agent, 0.5-0.8 parts of organic hydrogen polysiloxanes, 0.8-1.0 parts of platinum complex compound catalyst.
Preferably, the release bottom membrane is specially fluorine-containing methyl silicone resins film.
Second aspect, the present invention provide a kind of preparation side of the low scratch resistant optical arc face protective film of rainbow line of the high transparency
Method includes the following steps：
The side of the base membrane layer is coated with the anti-scraping coating, the other side is coated with pressure-sensitive layer of silica gel, then by release counterdie
Layer is fitted in the pressure-sensitive layer of silica gel, protective layer is fitted on anti-scraping coating, forms protection membrane structure；
The protection membrane structure is subjected to truncation, hot pressing, punching molding.
As a kind of situation of embodiment, the condition of the hot pressing is：350 DEG C, 3-5s.
Compared with prior art, the advantageous effect of the embodiment of the present invention is：
The present invention exhausts the air between protective film and screen by pressure-sensitive silica gel floor height venting quality, and is equipped with anti-blade coating
Layer, plays the role of anti-scratch, and rub resistance achievees the effect that protect screen.In addition, the present invention is made by hot press forming technology
Protective film has reasonable radian, docile to be covered on cambered surface screen.
Description of the drawings
Fig. 1 is the scratch resistant optical arc face protective film structure chart of the low rainbow line of high transparency provided in an embodiment of the present invention；
Wherein, the release bottom membranes of 10-, the pressure-sensitive layer of silica gel of 20-, the first strips of 21-, 30- base membrane layers, the first elongated slots of 31-,
The second elongated slots of 32-, the anti-scraping coatings of 40-, the second strips of 41-, 50- protective layers.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Fig. 1 is referred to, an embodiment of the present invention provides a kind of scratch resistant optical arc face protective films of the low rainbow line of high transparency
100：Including basal layer and functional layer；The basal layer is release bottom membrane 10, and the functional layer is along far from the basal layer side
To successively including pressure-sensitive layer of silica gel 20, base membrane layer 30, anti-scraping coating 40, protective layer 50.The effect of protective layer 50 is to play protection
Scratch resistant layer avoids dirty effect；The soil resistance of anti-scraping coating 40 is superior, 99 ° of water droplet angle ＞；Base membrane layer 30 is in any light
Only have slight rainbow line down, it is high to screen reading clarity, observer will not be impacted；Release bottom membrane 10 is specially
Fluorine-containing methyl silicone resins film, plays the role of keeping anti-sticking with pressure-sensitive layer of silica gel 20 being isolated.
In some embodiments, the thicknesses of layers of the scratch resistant optical arc face protective film of the low rainbow line of high transparency 100 is：It is release
The thickness of bottom membrane 10 is 36 μm, and the thickness of pressure-sensitive layer of silica gel 20 is 35 μm, and the thickness of base membrane layer 30 is 110 μm, anti-scraping coating
40 thickness is 4 μm, and the thickness of protective layer 50 is 40 μm；In other embodiments, the scratch resistant optics cambered surface of the low rainbow line of high transparency
The thicknesses of layers of screen protection cuticula 100 is：The thickness of release bottom membrane 10 is 40 μm, and the thickness of pressure-sensitive layer of silica gel 20 is 40 μm, base
The thickness of film layer 30 is 100 μm, and the thickness of anti-scraping coating 40 is 5 μm, and the thickness of protective layer 50 is 36 μm；Implement in other
In example, the thicknesses of layers of the scratch resistant optical arc face protective film of the low rainbow line of high transparency 50 is：The thickness of release bottom membrane 10 is 50 μ
The thickness of m, pressure-sensitive layer of silica gel 20 are 45 μm, and the thickness of base membrane layer 30 is 90 μm, and the thickness of anti-scraping coating 40 is 3 μm, protective layer
50 thickness is 50 μm.
In some embodiments, protective layer 50 includes protection glue-line, protective layer base successively along the separate basal layer direction
Layer, the protection glue-line, protective layer base the ratio between thickness be 1：3；In other embodiments, the protection glue-line, protective layer
The ratio between thickness of base is 1：4；In further embodiments, the protection glue-line, protective layer base the ratio between thickness be 1：5.
In some embodiments, the surface depressions that base membrane layer 30 is contacted with pressure-sensitive layer of silica gel 20 form several first elongated slots
31, the surface bulge that the pressure-sensitive layer of silica gel 20 is contacted with base membrane layer 30 forms several first strips 21, first elongated slot 31
It is matched in structure with first strip 21, for accommodating first strip 21；The base membrane layer 30 and the anti-blade coating
The surface depressions of 40 contact of layer form several second elongated slots 32, and the surface that the anti-scraping coating 40 is contacted with the base membrane layer 30 is convex
It rises and forms several second strips 41, second elongated slot 32 matches in structure with second strip 41, is described for accommodating
Second strip 41.Compared with the effect of the technical characteristic is so that base membrane layer 30 is combined with pressure-sensitive layer of silica gel 20, anti-scraping coating 40
Closely, a layer structure separation is prevented.
In some embodiments, direction is prolonged in base membrane layer straight line along its longitudinal axis for first elongated slot 31, the second elongated slot 32
It stretches, the y direction of several first elongated slots 31 is consistent, and the y direction of several second elongated slots 32 is consistent,
The effect of the technical characteristic is to be conducive to the preparation of the scratch resistant optical arc face protective film of the low rainbow line of high transparency 100, specifically
Convenient for when applying pressure-sensitive layer of silica gel 20, anti-scraping coating 40 to 30 two surfaces of base membrane layer, 20 coating of pressure-sensitive layer of silica gel is packed into
First elongated slot 31,40 coating of anti-scraping coating enter the second elongated slot 32, and can ensure that the painting in the first elongated slot 31 and the second elongated slot 32
Material filling is uniform, increases the bonding strength between layer；The y direction of first elongated slot, 31 and second elongated slot 32 intersects, more
Added with conducive to the bond strength between pressure-sensitive layer of silica gel 20, base membrane layer 30, anti-scraping coating 40.
In some embodiments, the width of the cross-sectional openings of first elongated slot 31, the second elongated slot 32 is less than its bottom,
The effect of the technical characteristic is to improve the firmness that pressure-sensitive layer of silica gel 20, base membrane layer 30, anti-scraping coating 40 combine, prevents layer
Between detach.
In some embodiments, the width of the cross-sectional openings of first elongated slot 31, the second elongated slot 32 is 2 μm, institute
The depth for stating the cross section of the first elongated slot 31, the second elongated slot 32 is 5 μm；In other embodiments, first elongated slot 31, second
The width of the cross-sectional openings of elongated slot 32 is 6 μm, first elongated slot 31, the second elongated slot 32 cross section depth be 8 μm；
In further embodiments, the width of the cross-sectional openings of first elongated slot 31, the second elongated slot 32 is 10 μm, and described first
The depth of the cross section of elongated slot 31, the second elongated slot 32 is 10 μm.
In some embodiments, first elongated slot 31, the cross section of the second elongated slot 32 are trapezoidal, are preferably further
Isosceles trapezoid, particularly, the base angle of the isosceles trapezoid is 45 °, and such technical characteristic is more conducive to pressure-sensitive layer of silica gel
20, anti-scraping coating 40 is detached with base membrane layer 30.In other embodiments, the cross section of first elongated slot 31, the second elongated slot 32
It is arc-shaped, refers to Fig. 1.
In the above-described embodiments, the material of the protective layer base of some embodiments is PET, the material of protection glue-line is silicon
The material of glue, the protective layer base of other embodiments is PP or PE, to protect the material of glue-line be that other are pressure-sensitive for acrylic glue etc.
Glue.Inventor has found, the material of protective layer base selects PET, protection glue-line material when being silica gel, and the effect of protective film of the present invention is more
Good, reason is that heat resistance is more preferable when it is silica gel to protect glue-line, is more conducive to the fairness of following process and is promoted good
Rate, while the excellent light transmittance of silica gel, exhaust performance can promote product quality, and generation bubble, user is avoided to pass through this hair
It is experienced more preferably when bright protective film is read.
In the above-described embodiments, anti-scraping coating 40 is the hardening coat of ultraviolet curing, case hardness >=2H, abrasion resistance
Reach 1KG counterweight #0000 2000 no markings of steel wool, 99 ° of water droplet degree ＞.If hardness is less than 2H, hardening coat resists
It scrapes performance to die down, easy tos produce cut, influence product appearance；Only more than 2H, then anti-scratch performance is more excellent.It should be noted that
Meet above-mentioned hardness, abrasion resistance, water droplet degree existing UV cured coating (have for example, by using Zhongshan city's Nuo Bijia optical materials
The produced scratch resistant product of limit company) it is used equally for preparing hardening coat.
In the above-described embodiments, the selection of the light transmittance ＞ 90% of the base membrane layer 30, the base membrane layer 30 are PET bases
Material.
In the above-described embodiments, the viscous force of pressure-sensitive layer of silica gel 20 is in 0-100g/inch, if viscous force is overweight, protective film
When being attached at cambered surface screen, since viscosity is laid particular stress on, user's feel when tearing stripping is laid particular stress on, and experience is poor；Meanwhile exhaust performance
It is deteriorated, easy tos produce bubble etc..In some embodiments, the raw material type and its weight content of the pressure-sensitive layer of silica gel 20 are：
80 parts of organopolysiloxane, 0.5 part of silane coupling agent, 0.5 part of organic hydrogen polysiloxanes, 0.8 part of platinum complex compound catalyst；
In other embodiments, the raw material type and its weight content of the pressure-sensitive layer of silica gel 20 are：90 parts of organopolysiloxane, silane
0.6 part of coupling agent, 0.7 part of organic hydrogen polysiloxanes, 0.9 part of platinum complex compound catalyst；In further embodiments, the pressure
The raw material type and its weight content of quick layer of silica gel 20 are 100 parts of organopolysiloxane, 0.8 part of silane coupling agent, and organic hydrogen is poly-
0.8 part of siloxanes, 1.0 parts of platinum complex compound catalyst.
In the above-described embodiments, release bottom membrane 10 is specially fluorine-containing methyl silicone resins film, play with it is pressure-sensitive
Layer of silica gel 20 keeps the effect of anti-sticking isolation.
The scratch resistant optical arc face protective film of the low rainbow line of high transparency provided by the invention 100 is that method is prepared by the following procedure to obtain
It takes：
The side of the base membrane layer 30 is coated with the anti-scraping coating 40, the other side is coated with pressure-sensitive layer of silica gel 20, then will be from
Type bottom membrane 10 is fitted in the pressure-sensitive layer of silica gel 20, protective layer 50 is fitted on anti-scraping coating 40, forms protective film knot
Structure；
The protection membrane structure is subjected to truncation, hot pressing, punching molding；
Wherein, the condition of hot pressing is controlled in 350 DEG C, 3-5s.If hot pressing temperature is inadequate or the time is too short, protect
Membrane structure is molded radian deficiency, cannot paste volt well in globoidal glass screen, subsequent technique fraction defective is high.If temperature is excessively high
Or overlong time, then protective film layers be easily deformed, generate the bad orders such as bubble.
For the substantive distinguishing features outstanding of the scratch resistant optical arc face protective film of the low rainbow line of high transparency of the present invention of withdrawing deposit 100
And significant progress, inventor sample (sample feature is shown in Table 1) to above-described embodiment, and comparative sample is provided with to sample
Product (are shown in Table 2), and sample 1,2,3 is identical as the preparation method of contrast sample 1,2,3, the difference is that only relative parameters setting：
Table 1
It analyzes after tested, sample 1, sample 2,3 protective film of sample have reasonable radian, docile on cambered surface screen, pass through
Pressure-sensitive silica gel floor height venting quality exhausts the air between protective film and screen, and is equipped with anti-scraping coating, plays anti-scratch, antifriction
The effect of wiping achievees the effect that protect screen.Comparatively, in stickiness, hardness, scratch resistant resistance to degree, venting quality, appearance, molding
Property aspect, sample 3 be most preferably.
Table 2
In order to protrude the importance of inventive film structure and its material capability, inventor is to sample 1, contrast sample 1, comparison
Sample 2, contrast sample 3 formation index be tested, the results are shown in Table 3：
Table 3
By above-mentioned analysis, it is found that contrast sample 1 is with sample 1, difference lies in 20 thickness of pressure-sensitive layer of silica gel, raw materials to form,
40 thickness of anti-scraping coating protects the thickness proportion of glue-line and protective layer base in protective layer 50, on the basis of distinguishing herein, compares
Appearance, the mouldability of sample 1 are significantly worse than sample 1, it can be seen that 20 thickness of pressure-sensitive layer of silica gel, raw material composition, anti-scraping coating 40
Thickness, protection glue-line and the thickness proportion of protective layer base are most important to the realization of effect of the present invention in protective layer 50, jointly
Synergistic effect is played to ideal film effect, is that the creativeness that inventor is realized based on purpose and carried out selects.Pass through above-mentioned point
Analysis also knows that difference lies in glue-line and protective layer are protected in 30 structure of base membrane layer, protective layer 50 with sample 1 for comparative example 2
The thickness proportion of base, on the basis of distinguishing herein, contrast sample 2 is in notable poor, this explanation of stickiness, appearance, mouldability
Protect glue-line and the thickness proportion of protective layer base that there is not the realization of effect of the present invention in 30 structure of base membrane layer, protective layer 50
Substitutability, although the thickness of film layer and its being structurally characterized in that the conventional selection of those skilled in the art, the structure of the present invention
It is not disclosed, and significant effect, so having substantive distinguishing features outstanding and marked improvement.By upper table it is further known that, it is right
The thicknesses of layers that differs only in than sample 3 and sample 1 has exceeded the framework of the present definition, as a result so that protective film venting quality
Can be poor to contain bubble, viscosity is too low, and docile property is poor, and radian is inadequate after hot pressing, it is seen that five tunic knots of protective film of the present invention
The thickness of structure to protection film properties be it is vital, part thicknesses of layers it is excessively high or it is too low all can be to protective film of the present invention
Performance generate counter productive, this also illustrate the restriction of inventive film layer thickness be inventor's creativeness selection as a result, rather than
According to the technical knowledge in the field setting.
It should be noted that giving the preferred embodiment of the present invention in the specification of the present invention, still, the present invention can
By by it is many it is different in the form of realize, however it is not limited to this specification described embodiment, these embodiments are not as right
The additional limitation of the content of present invention, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.Also, above-mentioned each technical characteristic continues to be combined with each other, and forms the various embodiments not being enumerated above, is accordingly to be regarded as this hair
Speak frankly the range that bright secretary carries；Further, for those of ordinary skills, it can be improved according to the above description
Or transformation, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of low scratch resistant optical arc face protective film (100) of rainbow line of high transparency, which is characterized in that including basal layer and function
Layer；The basal layer is release bottom membrane (10), and the functional layer includes pressure-sensitive silica gel successively along the separate basal layer direction
Layer (20), base membrane layer (30), anti-scraping coating (40), protective layer (50).
2. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1, which is characterized in that
In the protective film, the thickness of release bottom membrane (10) is 36-50 μm, and the thickness of pressure-sensitive layer of silica gel (20) is 35-45 μm, basement membrane
The thickness of layer (30) is 90-110 μm, and the thickness of anti-scraping coating (40) is 3-5 μm, and the thickness of protective layer (50) is 36-50 μm.
3. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1 or 2, feature exists
In the protective layer (50) includes protection glue-line, protective layer base successively along separate release bottom membrane (10) direction；It is described
Protect glue-line, the ratio between the thickness of protective layer base is 1：(3-5).
4. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 3, which is characterized in that
The material of the protective layer base includes PET, PP, PE；The material of the protection glue-line is pressure sensitive adhesive.
5. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1 or 2, feature exists
It is the hardening coat of ultraviolet curing in, the anti-scraping coating (40), case hardness >=2H, abrasion resistance reaches 1KG counterweights #
0000 no marking of steel wool 2000 times, 99 ° of water droplet degree ＞.
6. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1 or 2, feature exists
In the selection of the light transmittance ＞ 90% of the base membrane layer (30), the base membrane layer are PET base material.
7. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1 or 2, feature exists
In the viscous force of the pressure-sensitive layer of silica gel (20) is in 0-100g/inch；
The raw material type and its weight content of the pressure-sensitive layer of silica gel (20) be：80-100 parts of organopolysiloxane, it is silane coupled
0.5-0.8 parts of agent, 0.5-0.8 parts of organic hydrogen polysiloxanes, 0.8-1.0 parts of platinum complex compound catalyst.
8. the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 1 or 2, feature exists
In, the release bottom membrane (10) be specially fluorine-containing methyl silicone resins film.
9. a kind of preparation according to the scratch resistant optical arc face protective film (100) of the low rainbow line of high transparency described in claim 1 to 8
Method, which is characterized in that include the following steps：
It is coated with the anti-scraping coating (40), the pressure-sensitive layer of silica gel (20) of other side coating in the side of the base membrane layer (30), then will
Release bottom membrane (10) is fitted on the pressure-sensitive layer of silica gel (20), protective layer (50) is fitted on anti-scraping coating (40), shape
At protection membrane structure；
The protection membrane structure is subjected to truncation, hot pressing, punching molding.
10. the preparation method of the low scratch resistant optical arc face protective film (100) of rainbow line of high transparency according to claim 9,
It is characterized in that, the condition of the hot pressing is：350 DEG C, 3-5s.
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| CN109694663A (en) * | 2018-12-05 | 2019-04-30 | 深圳市摩码科技有限公司 | A kind of high transparency protective film and preparation method thereof |
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