Flat-panel monitor processing procedure PET protective membraneTechnical field
The present invention relates to a kind of PET protective membrane, relate to a kind of flat-panel monitor processing procedure PET protective membrane specifically, belong to chemoproection membrane technique field.
Background technology
Flat panel display is the basic technology of information-based industry, it also is emerging technology in the ascendant in recent years, one of flat-panel monitor two big main structures are the glass substrate of material with the unorganic glass exactly, function needs such as flat-panel monitor is thin, light, little in order to adapt to, high transmission rate, the thickness of glass substrate thins down, the thinnest glass substrate only has 0.4mm thick at present, this kind glass substrate is to become the pieces of glass eyeglass of different shape size to be made large-sized glass cutting, polishes smooth around it then.In addition; in order to eliminate the refraction of light of glass substrate; increase its transmittance; need be with glass mirror local location evaporation one deck super thin metal; and in order in evaporate process, to prevent to damage the shielding of scratch glass mirror and non-evaporated segment, so need with a kind of acid and alkali-resistance, anti-180 ℃ of high temperature, antistatic, easy attaching, easily peel off, free of contamination protective membrane.
What the traditional protection film used is common PP protective membrane base material, and its surface coated be common adhesive-layer, this kind protective membrane has many deficiencies: the one, deflection is not enough, the incompatibility mechanical manipulator is inhaled fast and is put applying; The 2nd, not antistatic, influence quick suction of mechanical manipulator and put; The 3rd, undercapacity is in the thick glass high speed rotating when polishing of protection 0.4mm; Therefore four are to use the clinging power of common pressure sensitive adhesive very high, and unusual difficulty when glass mirror is torn is damaged glass mirror sometimes even therefore; The 5th, not anti-180 ℃ of high temperature.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide that a kind of polarity is low, antistatic, intensity is big and resistant to elevated temperatures flat-panel monitor processing procedure PET protective membrane.
For solving the problems of the technologies described above, the technical scheme that the present invention uses is:
A kind of flat-panel monitor processing procedure PET protective membrane; it is characterized in that; it comprises the PET protective membrane base material and the low pressure sensitive adhesive and the release film of polarity of optical grade; wherein; the pressure sensitive adhesive that polarity is low is coated the one side of the PET protective membrane base material of optical grade, and release film then is laminated to the upper surface of the low pressure sensitive adhesive of polarity.
Described flat-panel monitor processing procedure PET protective membrane is characterized in that, the low pressure sensitive adhesive of described polarity is with 18～20 gram/m2Grammes per square metre and 18～19 μ m dry layer thickness one side that is coated on the PET protective membrane base material of described optical grade.
Described flat-panel monitor processing procedure PET protective membrane is characterized in that, the thickness of the PET protective membrane base material of described optical grade is 50～150 μ m.
Described flat-panel monitor processing procedure PET protective membrane is characterized in that, polyester films such as the PET protective membrane base material selection of described optical grade is transparent, blue, black, white.
Described flat-panel monitor processing procedure PET protective membrane is characterized in that described release film is selected from any in polyethylene film, polypropylene film, polyester film, the natural paper.
Described flat-panel monitor processing procedure PET protective membrane is characterized in that, the low pressure sensitive adhesive of described polarity is 2～5gf/25mm 180 ° peeling force.
Beneficial effect of the present invention is: the present invention is by using the low pressure sensitive adhesive of polarity and the PET protective membrane base material of optical grade; polarity is low because pressure sensitive adhesive has, force of cohesion is big, show inertia; and the flat panel display glass material surface had pasting property of moment; therefore utilize the protective membrane of the preparations such as PET protective membrane base material of pressure sensitive adhesive and optical grade to have not come off, easily peel off behind the evaporation, not cull, do not pollute, high temperature resistant, anlistatig characteristic, can prevent effectively that it from damaging glass mirror in the process of peeling off.
Description of drawings
Fig. 1 is the expansion sectional schematic diagram of one embodiment of the invention.
Main Reference numeral implication is among the figure:
1, low pressure sensitive adhesive 3, the release film of PET protective membrane base material 2, polarity of optical grade.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the expansion sectional schematic diagram of one embodiment of the invention.
As shown in Figure 1: flat-panel monitor processing procedure PET protective membrane; the PET protective membrane base material 1 and low pressure sensitive adhesive 2 and the release film 3 of polarity that comprise optical grade; wherein; the pressure sensitive adhesive 2 that polarity is low is coated the one side of the PET protective membrane base material 1 of optical grade, and release film 3 then is laminated to the upper surface of the low pressure sensitive adhesive of polarity 2.
The low pressure sensitive adhesive 2 of described polarity is with 18～20 gram/m2Grammes per square metre and the upper surface of 18～19 μ m dry layer thickness PET protective membrane base material 1 that is coated on described optical grade on, and the low pressure sensitive adhesive 2 of polarity is 2～5gf/25mm 180 ° peeling force; The thickness of the PET protective membrane base material of optical grade then is 50～150 μ m; and polyester films such as PET protective membrane base material 1 selection of optical grade is transparent, blue, black, white; release film 3 then is selected from a kind of in the materials such as polyethylene film, polypropylene film, polyester film, natural paper; what in the present embodiment, the PET protective membrane base material 1 of optical grade was selected is the thick transparent polyester film of 60um.
Embodiment 1: the low pressure sensitive adhesive 2 of described polarity is with 18 gram/m2Grammes per square metre and the upper surface of the 18 μ m dry layer thickness PET protective membrane base material 1 that is coated on described optical grade on, and the low pressure sensitive adhesive 2 of polarity is 2gf/25mm 180 ° peeling force, the thickness of the PET protective membrane base material 1 of optical grade then is 50 μ m.
Embodiment 2: the low pressure sensitive adhesive 2 of described polarity is with 19 gram/m2Grammes per square metre and the upper surface of the 18.5 μ m dry layer thickness PET protective membrane base material 1 that is coated on described optical grade on, and the low pressure sensitive adhesive 2 of polarity is 3gf/25mm 180 ° peeling force, the thickness of the PET protective membrane base material of optical grade then is 100 μ m.
Embodiment 3: the low pressure sensitive adhesive 2 of described polarity is with 20 gram/m2Grammes per square metre and the upper surface of the 19 μ m dry layer thickness PET protective membrane base material 1 that is coated on described optical grade on, and the low pressure sensitive adhesive 2 of polarity is 5gf/25mm 180 ° peeling force, the thickness of the PET protective membrane base material of optical grade then is 150 μ m.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.