Quick-exhaust blue-light-proof double-faced adhesive tape and protection structure thereof

Abstract

The utility model discloses a quick-exhaust blue-light-proof double-faced adhesive tape and a protection structure thereof, and relates to the technical field of double-faced adhesive tapes, the quick-exhaust blue-light-proof double-faced adhesive tape comprises a base film layer, a low-viscosity pressure-sensitive adhesive layer is arranged at the bottom of the base film layer, and a blue-light-proof coating is arranged on the upper surface of the base film layer; a color migration prevention coating is arranged on the upper surface of the blue light prevention coating; a light-cured high-viscosity pressure-sensitive adhesive layer is adhered to the upper part of the anti-color-migration coating, and a light-cured high-viscosity pressure-sensitive adhesive exhaust layer is adhered to the upper part of the light-cured high-viscosity pressure-sensitive adhesive layer; according to the utility model, the visible light absorbent with a narrow absorption wave band is adopted, so that a higher blue light blocking rate can be achieved under the condition of the same light transmittance; the arranged anti-color-migration layer can keep the lasting stability of various color systems; the arranged photocuring high-viscosity pressure-sensitive adhesive exhaust layer has good filling performance on the pressure-sensitive adhesive layer, the surface flatness is high, and the problem that the exhaust of the adhesive layer is slow due to the fact that a large amount of heat is released during photocuring of the photocuring pressure-sensitive adhesive with the high coating thickness can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -sided adhesive tape technical field, specifically is a kind of fast exhaust anti-blue light double -sided adhesive tape and its protective structure. BACKGROUND

[0002] With the development of visualization technology, electronic screen display technology is more and more widely used in life, and electronic display screen belongs to the material of fragile and expensive, so the screen protection device is very important. The light source in the electronic display inevitably contains a large amount of 380-450nm high-energy short-wave blue light, which has a great damage to the retina, so it is necessary to set the anti-blue light function of the screen protection device.

[0003] At present, a kind of protective device commonly used in mobile phone and tablet computer is composed of tempered glass and double-sided adhesive tape attached to the tempered glass. The double-sided adhesive tape used in the protective device is generally composed of PET base film, low-adhesion pressure-sensitive adhesive coated on one side, and high-adhesion pressure-sensitive adhesive coated on the other side. The common anti-blue light technology is to add anti-blue light agent to the substrate or adhesive layer. Due to the absorption of 320-450nm blue-violet light, the double-sided adhesive tape will be more noticeable in 560-590nm complementary color yellow light. This yellow light is a kind of glare, which can easily cause visual fatigue. The existing solutions to this problem are to add color concentrate or nano pigment to weaken the yellow color, but the color light absorption range of color concentrate and nano pigment is too large, which can easily cause the decrease of light transmittance. The higher the blue light absorption, the more color concentrate and nano pigment is added, and the light transmittance decreases rapidly. Light-cured high-adhesion pressure-sensitive adhesive is widely used in double-sided adhesive tape due to its low energy consumption, solvent-free, environmental protection and safety, and higher coating thickness than solvent pressure-sensitive adhesive.

[0004] However, a large amount of heat is generated during the light curing process of light-cured high-adhesion pressure-sensitive adhesive, especially when the coating amount is high. A large amount of heat can easily cause deformation of the double-sided adhesive tape along the machine tension direction, resulting in decrease of flatness and slow exhaust after being attached to the tempered glass. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of fast exhaust anti-blue light double -sided adhesive tape and its protective structure, can have higher barrier rate under the premise of not relatively large influence light transmittance;It still has good exhaust property under the condition of using high-thickness light-cured high-adhesion pressure-sensitive adhesive;To solve the technical problems proposed in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of fast exhaust anti-blue light double-sided adhesive, including base film layer, the bottom of the base film layer is equipped with low tack pressure-sensitive adhesive layer, anti-blue light layer coating is provided on the upper surface of base film layer;The upper surface of the anti-blue light layer coating is provided with color migration prevention coating;The light-cured high tackiness pressure-sensitive adhesive glue layer is bonded above the color migration prevention coating, and the light-cured high tackiness pressure-sensitive adhesive exhaust layer is bonded above the light-cured high tackiness pressure-sensitive adhesive glue layer.

[0008] As a further technical scheme of the utility model, the base film layer is a sheet body made of PET material, and the thickness is 10-250 um.

[0009] As a further technical scheme of the utility model, the thickness of the color migration prevention coating is 1-5 um.

[0010] A protection structure for fast exhaust anti-blue light double-sided adhesive, including toughened glass and protection bottom film, wherein the toughened glass is arranged above the light-cured high tackiness pressure-sensitive adhesive exhaust layer;The protection bottom film is located at the bottom of the low tack pressure-sensitive adhesive layer.

[0011] As a further technical scheme of the utility model, the thickness of the toughened glass is 150-1000 um;The side of the toughened glass bonded with the light-cured high tackiness pressure-sensitive adhesive exhaust layer is further provided with a silk screen frame.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model adopts visible light absorber with narrow absorption wave band, and compared with nanometer color paste and color concentrate yellow light removal technology, can have higher blue light blocking rate under the same light transmittance condition;

[0014] The utility model is provided with color migration prevention layer, which can maintain the long-term stability of various color systems.

[0015] The utility model is provided with light-cured high tackiness pressure-sensitive adhesive exhaust layer, which has good filling property for pressure-sensitive adhesive glue layer, high surface flatness, and can effectively solve the problem of slow glue exhaust caused by large heat release of high-coated light-cured pressure-sensitive adhesive during light curing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model.

[0017] In the drawing: 1-toughened glass, 2-light-cured high tackiness pressure-sensitive adhesive exhaust layer, 3-light-cured high tackiness pressure-sensitive adhesive glue layer, 4-color migration prevention coating, 5-anti-blue light layer coating, 6-base film layer, 7-low tack pressure-sensitive adhesive layer, 8-protection bottom film. DETAILED DESCRIPTION

[0018] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0019] Please refer to Figure 1 In the embodiments of the utility model, a fast exhaust anti-blue light double-sided adhesive tape comprises a base film layer 6, the bottom of the base film layer 6 is provided with a low-adhesion pressure-sensitive adhesive layer 7, an anti-blue light layer coating 5 is arranged on the upper surface of the base film layer 6, the upper surface of the anti-blue light layer coating 5 is provided with an anti-color migration coating 4, the anti-color migration coating 4 is bonded with a photocuring high-adhesion pressure-sensitive adhesive layer 3, and the photocuring high-adhesion pressure-sensitive adhesive layer 3 is bonded with a photocuring high-adhesion pressure-sensitive adhesive exhaust layer 2.

[0020] A protection structure for the fast exhaust anti-blue light double-sided adhesive tape comprises toughened glass 1 and a protection bottom film 8, wherein the toughened glass 1 is arranged above the photocuring high-adhesion pressure-sensitive adhesive exhaust layer 2, and the protection bottom film 8 is arranged at the bottom of the low-adhesion pressure-sensitive adhesive layer 7.

[0021] The toughened glass 1 has a thickness of 150um-1000um, and the surface in contact with the adhesive 2-pressure-sensitive adhesive layer has a silk screen frame or does not have a silk screen frame; the surface of the toughened glass can be treated by AG, AR, AF or HC.

[0022] The photocuring high-adhesion pressure-sensitive adhesive exhaust layer 2 is formed by UV light curing of a mixed liquid composed of acrylic pressure-sensitive adhesive resin, acrylic monomer and photoinitiator, has a thickness of 10-30um and a peeling force of 400-5000g / 25mm, and has a hardness of 0-5A.

[0023] The photocuring high-adhesion pressure-sensitive adhesive layer 3 is formed by UV light curing of a mixed liquid composed of acrylic pressure-sensitive adhesive resin, acrylic monomer, photoinitiator and anti-blue light additive, has a thickness of 100um-500um and a hardness of 0-5A, and the anti-blue light additive in the high-adhesion pressure-sensitive adhesive is preferably an anti-blue light additive with an absorption wavelength of 400nm-450nm.

[0024] The anti-color migration coating 4 is a UV hardening coating with good temperature resistance, has a thickness of 1um-5um and a hardness of 2H-4H.

[0025] The anti-blue light layer 5 is a thermosetting resin coating layer added with an anti-blue light additive and a visible light absorber, and has a thickness of 3-15 um. Preferably, the anti-blue light layer 5 is formed by cross-linking a hydroxyl acrylate resin and a polyurethane resin with a curing agent. The anti-blue light additive is preferably an anti-blue-violet additive with an absorption band of 320-400 nm. The visible light absorber is preferably a visible light absorber with an absorption band of 560-680 nm.

[0026] The base film layer 6 is made of PET and has a thickness of 10-250 um.

[0027] The low-adhesion pressure-sensitive adhesive layer 7 is a low-adhesion organic silicon pressure-sensitive adhesive available on the market, has a thickness of 10-50 um, and has an adhesive force of 0.1-50 g / 25 mm.

[0028] The protective bottom film 8 is a general protective bottom film, and the surface in contact with the low-adhesion pressure-sensitive adhesive layer is required to be smooth and flat.

[0029] The utility model is formed according to the layer relationship and manufacturing process of the double-sided adhesive tape in sequence. First, one side of the base film layer 6 is coated with a layer of low-adhesion organic silicon pressure-sensitive adhesive 7, and the organic silicon pressure-sensitive adhesive is protected by the protective bottom film 8 after curing in a high-temperature oven. Then, the other side of the base film 6 is coated with the anti-blue light coating layer 5, and the anti-blue light coating layer 5 is cured in a high-temperature oven. A color migration prevention layer 4 is coated on the anti-blue light coating layer 5, and the color migration prevention layer 4 is cured by UV lamp irradiation. A layer of light-cured high-adhesion pressure-sensitive adhesive layer 3 is coated on the color migration prevention layer 4, and the light-cured high-adhesion pressure-sensitive adhesive layer 3 is cured by UV-LED lamp irradiation after being covered with a silicone oil release film. The silicone oil release film on the light-cured high-adhesion pressure-sensitive adhesive layer 3 is peeled off, and a layer of light-cured high-adhesion pressure-sensitive adhesive air release layer 2 is coated on the light-cured high-adhesion pressure-sensitive adhesive layer 3. The light-cured high-adhesion pressure-sensitive adhesive air release layer 2 is cured by UV-LED lamp irradiation after being covered with a silicone oil release film, thereby forming a complete structure of the fast air release anti-blue light double-sided adhesive tape. The light transmittance and blue light blocking rate of the double-sided adhesive tape are tested by using the light transmittance tester LS-108H of Linshang Technology. After the protective bottom film 8 is peeled off, the entire protective device formed by the double-sided adhesive tape and the tempered glass is attached to the smooth black edge glass, and is used to test the air release speed and the stability of the color system under high temperature and high humidity. Embodiment

[0030] On a 50 um PET substrate, Dow Corning organic silicon pressure-sensitive adhesive resins 7666 and 7687 are mixed at a ratio of 100:10, an appropriate amount of platinum curing agent is added, and the mixture is cured in an oven at 150 DEG C for 2 min to form a low-adhesion pressure-sensitive adhesive layer with a thickness of 30 um and an adhesive force of 1-2 g / 25 mm, and a protective bottom film is covered.

[0031] A hydroxyl acrylic resin with a hydroxyl value of 65 is used as the coating liquid, 100 parts, an amino resin is used as the coating liquid, 40 parts, butyl acetate is used as the coating liquid, 400 parts, anti-blue light additive 8431 (Qitian) is used as the coating liquid, 30 parts, anti-blue light additive 9901 (Qitian) is used as the coating liquid, 10 parts, 580 nm visible light absorber VA582 (Yituo) is used as the coating liquid, 0.0001 parts, 640 nm visible light absorber VA648 (Yituo) is used as the coating liquid, 0.0001 parts, phosphoric acid catalyst is used as the coating liquid, 1 part, and the coating is cured in a 150 oven at 150°C for 2 minutes to form a colored anti-blue light coating with a thickness of 5um; a six-functional acrylic resin is used as the coating liquid, 100 parts, an eight-functional acrylic resin is used as the coating liquid, 20 parts, a two-functional flexible acrylic resin is used as the coating liquid, 20 parts, a photoinitiator TPO is used as the coating liquid, 6 parts, a leveling agent is used as the coating liquid, 0.2 parts, and a solvent is used as the coating liquid, 500 parts, and after the solvent is volatilized by baking, the coating is cured with a UV mercury lamp to form an anti-color migration coating with a thickness of 3um and a hardness of 3H.

[0032] 800 parts of isooctyl acrylate, 100 parts of butyl acrylate, 80 parts of acrylic acid, 20 parts of hydroxyethyl acrylate, and 2 parts of photoinitiator TPO are mixed in a reactor, stirred and purged with nitrogen for 2 hours, and polymerized under UVA-LED ultraviolet lamp irradiation for 10 minutes to form an acrylic pressure-sensitive adhesive resin; 100 parts of the acrylic pressure-sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO (20) TA, and 2 parts of photoinitiator TPO are mixed as a high-tack pressure-sensitive adhesive coating liquid, coated to a thickness of 200um, and cured by irradiation with a 365nm light source UVA-LED ultraviolet lamp to form a rubber layer with a hardness of 1A and a release film of silicone oil is applied on top; 100 parts of the acrylic pressure-sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO (20) TA, and 2 parts of photoinitiator TPO are mixed as a high-tack pressure-sensitive adhesive coating liquid, coated to a thickness of 20um on the high-tack pressure-sensitive adhesive rubber layer, and cured by irradiation with a 365nm light source UVA-LED ultraviolet lamp to form a rubber layer with a hardness of 1A and a tack of 2000g / 25mm, and a release film of silicone oil is applied on top.

[0033] The above forms a double-sided adhesive structure with a total thickness of 300um, a color light of blue-green, a test light transmittance of 78%, a 200nm-395nm blue-violet light blocking rate of 99.5%, a 410nm blue light blocking rate of 90%, and a 430nm blue light blocking rate of 70%; the structure is attached to a 400um thick tempered glass without silk screen printing, the exhaust speed is tested, and the exhaust is completed quickly in 3 seconds without residual small bubbles; the color stability is tested after aging at a high temperature of 85°C and a high humidity of 85% for 168 hours; the color temperature before aging is 6810K, and the color temperature after aging is 6805K, which remains basically unchanged. Example

[0034] On the 50um PET substrate, the Dow Corning silicone pressure sensitive adhesive resin 7666 and 7687 are mixed at a ratio of 100:20, and the appropriate proportion of platinum curing agent is added, and the oven is baked at 150°C for 2min to cure, to form a 30um low-adhesion pressure sensitive adhesive layer with a viscosity of 2-3g / 25mm, and a protective bottom film is covered.

[0035] A hydroxyl value of 65 hydroxyacrylic resin 100 parts, amino resin 40 parts, butyl 400 parts, blue light assistant 8431 (Qitian) 30 parts, blue light assistant 9901 (Qitian) 10 parts, 580nm visible light absorber VA582 (Intebu) 0.00005 parts, 640nm visible light absorber VA648 (Intebu) 0.00015 parts, phosphoric acid catalyst 1 part as coating liquid, 150 oven 150°C baking 2min curing, forming a thickness of 5um colored blue light protection coating; with six official acrylic resin 100 parts, eight official acrylic resin 20 parts, two official toughness acrylic resin 20 parts, photoinitiator TPO 6 parts, leveling agent 0.2 parts, solvent 500 parts as coating liquid, after baking to volatilize the solvent, using UV mercury lamp curing, forming a thickness of 3um, hardness 3H color migration resistant coating.

[0036] Mix 800 parts of isooctyl acrylate, 100 parts of butyl acrylate, 80 parts of acrylic acid, 20 parts of hydroxyethyl acrylate, 2 parts of photoinitiator TPO in the reactor, stir and purge nitrogen, evacuate air for 2 hours, polymerize under UVA-LED ultraviolet lamp for 10 minutes to form an acrylic pressure sensitive adhesive resin; take 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, 2 parts of photoinitiator TPO, 0.02 parts of blue light assistant 1995 (Qitian) with a wavelength of 430nm, mix as high-adhesion pressure sensitive adhesive coating liquid, coat 100um, use 365nm light source UVA-LED ultraviolet lamp to irradiate and cure, the adhesive layer hardness is 1A, and a silicone oil release film is covered; take 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, 2 parts of photoinitiator TPO, mix as high-adhesion pressure sensitive adhesive coating liquid, coat 30um on the high-adhesion pressure sensitive adhesive layer, use 365nm light source UVA-LED ultraviolet lamp to irradiate and cure, the adhesive layer hardness is 1A, and the adhesive force is 2000g / 25mm, and a silicone oil release film is covered;

[0037] The above forms a total thickness of 220um double-sided adhesive structure, color light is green, the test light transmittance is 78.6%, 200nm-395nm blue-violet light resistance rate is 99.6%, 410nm blue light resistance rate is 91%, 430nm blue light resistance rate is 70.5%; It is attached to the tempered glass of AF without silk screen, the test exhaust speed is quickly exhausted in 3 seconds without residual small bubbles; high temperature 85℃, high humidity 85% aging for 168 hours, test color stability; test under D65 light source, color temperature before aging is 6230K, after aging is 6228K, basically unchanged. Example

[0038] On the 12um PET substrate, Dow Corning silicone pressure sensitive adhesive resin 7666 and 7687 are mixed at a ratio of 100:10, and a suitable proportion of platinum curing agent is added, and the oven is baked at 150℃ for 2min to cure, forming a low-adhesion pressure-sensitive adhesive layer of 30um, with a viscosity of 1-2g / 25mm, and a protective bottom film is covered. 100 parts of hydroxyl acrylic resin with a hydroxyl value of 65, 40 parts of amino resin, 400 parts of butyl, 30 parts of blue light blocking aid 8431 (Qitian), 10 parts of blue light blocking aid 9901 (Qitian), 0.0001 parts of 580nm visible light absorber VA582 (Yituo), 0.0001 parts of 640nm visible light absorber VA648 (Yituo), and 1 part of phosphoric acid catalyst as coating liquid, 150 oven 150℃ baking 2min to cure, forming a colored blue light blocking coating with a thickness of 5um;

[0039] Use 100 parts of six-functional acrylic resin, 20 parts of eight-functional acrylic resin, 20 parts of two-functional tough acrylic resin, 6 parts of photoinitiator TPO, 0.2 parts of leveling agent, and 500 parts of solvent as coating liquid, after volatilizing the solvent by baking, use UV mercury lamp to cure, forming a color migration resistant coating with a thickness of 3um and a hardness of 3H. Mix 800 parts of isooctyl acrylate, 100 parts of butyl acrylate, 80 parts of acrylic acid, 20 parts of hydroxyethyl acrylate, and 2 parts of photoinitiator TPO in a reactor, stir and purge nitrogen for 2 hours, and use UVA-LED ultraviolet lamp to polymerize for 10 minutes to form an acrylic pressure-sensitive adhesive resin; take 100 parts of acrylic pressure-sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, 2 parts of photoinitiator TPO, and 0.02 parts of 430nm wavelength blue light blocking aid 1995 (Qitian) to mix as high-adhesion pressure-sensitive adhesive coating liquid, coat 100um, and use 365nm light source UVA-LED ultraviolet lamp to irradiate and cure, the adhesive layer hardness is 1A, and a silicone oil release film is covered;

[0040] Take 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO (20) TA, 2 parts of photoinitiator TPO as high viscosity pressure sensitive air exhaust layer coating liquid, coat 30um on the high viscosity pressure sensitive adhesive layer, use 365nm light source UVA-LED ultraviolet lamp for irradiation curing, the hardness of the adhesive layer is 1A, the adhesion is 2000g / 25mm, and the silicone oil release film is covered; the above forms a double-sided adhesive structure with a total thickness of 180um, the color light is blue-green, the test light transmittance is 78%, the blue-violet light resistance rate is 99.5% from 200nm to 395nm, the blue light resistance rate is 90% at 410nm, and the blue light resistance rate is 70% at 430nm; adhere to the 400um thick AF tempered glass without silk screen printing, test the air exhaust speed, which can be quickly exhausted in 3 seconds without residual small bubbles; test the color stability after aging at high temperature 85℃ and high humidity 85% for 168 hours; test the color temperature under D65 light source, which is 6808K before aging and 6800K after aging, basically unchanged. Example

[0041] On a 100um PET substrate, use Dow Corning organic silicone pressure sensitive adhesive resin 7666 and 7687 in a ratio of 100:80, add appropriate proportion of platinum curing agent, oven 150℃ baking 2min for curing, form a low viscosity pressure sensitive adhesive layer with a thickness of 30um and a viscosity of 5-6g / 25mm, and cover a protective bottom film. Use 100 parts of hydroxyl value 65 hydroxyl acrylic resin, 40 parts of amino resin, 400 parts of butyl, 30 parts of blue light resistant additive 8431 (Qiti) 10 parts, 30 parts of blue light resistant additive 9901 (Qiti), 0.00015 parts of 580nm visible light absorber VA582 (Intebu), 0.00005 parts of 640nm visible light absorber VA648 (Intebu), and 1 part of phosphoric acid catalyst as coating liquid, oven 150℃ baking 2min for curing, form a colored blue light resistant coating layer with a thickness of 5um;

[0042] Take 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, 2 parts of photoinitiator TPO as high tack pressure sensitive adhesive coating liquid, coated 300um, 365nm light source UVA-LED ultraviolet lamp with irradiation curing, adhesive layer hardness 1A, covered with silicone release film;

[0043] Take 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, 2 parts of photoinitiator TPO as high tack pressure sensitive adhesive coating liquid, coated 300um, 365nm light source UVA-LED ultraviolet lamp with irradiation curing, adhesive layer hardness 1A, covered with silicone release film; The above forms a total thickness of 450um double-sided adhesive structure, color light is gray green, the test transmittance is 78.2%, 200nm-395nm blue-violet light resistance rate is 99.5%, 410nm blue light resistance rate is 90%, 430nm blue light resistance rate is 70%;

[0044] Attached to the 400um thickness of tempered glass without silk screen AF, test exhaust speed, 3 seconds can be quickly exhausted, no residual small bubbles; high temperature 85℃, high humidity 85% aging 168 hours, test color stability; test D65 light source, before aging color temperature 6520K, after aging 6513K, basically unchanged. Example

[0045] On the 100um PET substrate, the low tackiness pressure sensitive adhesive layer of 30um, 5-6g / 25mm tackiness is formed by using the Dow Corning silicone pressure sensitive adhesive resin 7666 and 7687 in the ratio of 100:80, adding the appropriate ratio of platinum curing agent, baking in the oven at 150℃ for 2min to cure, and covering with a protective bottom film. The colored anti-blue light coating layer of 5um thickness is formed by using the coating liquid of 100 parts of hydroxyl acrylate resin with hydroxyl value of 65, 40 parts of amino resin, 400 parts of butyl acrylate, 30 parts of anti-blue light additive 8431 (Qitian), 10 parts of anti-blue light additive 9901 (Qitian), 0.00006 parts of 580nm visible light absorber VA582 (Yituo), 0.00005 parts of 640nm visible light absorber VA648 (Yituo), and 1 part of phosphoric acid catalyst, baking in the oven at 150℃ for 2min to cure;

[0046] The color migration resistant coating layer of 3um thickness and 3H hardness is formed by using the coating liquid of 100 parts of six-functional acrylate resin, 20 parts of eight-functional acrylate resin, 20 parts of two-functional tough acrylate resin, 6 parts of photoinitiator TPO, 0.2 parts of leveling agent, and 500 parts of solvent, volatilizing the solvent after baking, and curing with UV mercury lamp.

[0047] The coating liquid of 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, 0.2 parts of TMPEO(20)TA, and 2 parts of photoinitiator TPO is mixed as the high tackiness pressure sensitive adhesive coating liquid, coated to 300um, and cured by irradiation with 365nm light source UVA-LED ultraviolet lamp, with the adhesive layer hardness of 1A and covered with silicone release film; the coating liquid of 100 parts of acrylic pressure sensitive adhesive resin, 0.2 parts of 1,6-hexanediol diacrylate, and 0.2 parts of TMPEO(20)TA is mixed as the high tackiness pressure sensitive adhesive exhaust layer coating liquid, coated to 30um on the high tackiness pressure sensitive adhesive layer, and cured by irradiation with 365nm light source UVA-LED ultraviolet lamp, with the adhesive layer hardness of 1A, the tackiness of 2000g / 25mm, and covered with silicone release film;

[0048] The above formed a total thickness of 450um double-sided adhesive structure, color light is blue-green, the test light transmittance is 85%, 200nm-395nm blue-violet light barrier rate is 95%, 410nm blue light barrier rate is 68%, 430nm blue light barrier rate is 46%; attached to the 400um thickness of AF's tempered glass without silk screen, test exhaust speed, 3 seconds can be quickly exhausted, no residual small bubbles; high temperature 85℃, high humidity 85% aging 168 hours, test color stability; test D65 light source, before aging color temperature 6716K, after aging 6700K, basically unchanged.

[0049] Comparative Example 1

[0050] On the 100um PET substrate, Dow Corning silicone pressure sensitive adhesive resin 7666 and 7687 were mixed at a ratio of 100:80, with appropriate proportion of platinum curing agent, oven 150℃ baking 2min for curing, forming a 30um, low tackiness pressure sensitive adhesive layer with a viscosity of 5-6g / 25mm, and covering a protective bottom film. In the OCA optical glue, add blue light resistant additives, color concentrate in nano color paste, adjust to the same light transmittance 85% as the implementation column, coat 320um, 365nm light source UVA-LED ultraviolet lamp with irradiation curing, cover silicone oil release film, the above formed a total thickness of 450um double-sided adhesive structure, color light is blue-green, the test 200nm-395nm blue-violet light barrier rate is 93%, 410nm blue light barrier rate is 59%, 430nm blue light barrier rate is 35%; attached to the 400um thickness of AF's tempered glass without silk screen, test exhaust speed, 12 seconds to exhaust, tempered glass edge residual individual small bubbles; high temperature 85℃, high humidity 85% aging 168 hours, test color stability; test D65 light source, before aging color temperature 6738K, after aging 6436K, color temperature change is large.

[0051] Comparative Example 2

[0052] On the 12um PET substrate, Dow Corning silicone pressure sensitive adhesive resin 7666 and 7687 were mixed at a ratio of 100:20, with appropriate proportion of platinum curing agent, oven 150℃ baking 2min for curing, forming a 30um, low tackiness pressure sensitive adhesive layer with a viscosity of 1-2g / 25mm, and covering a protective bottom film.

[0053] In the OCA optical glue, the anti-blue light additive and the color concentrate in the nano color paste are added, and the same light transmittance 78% as the implementation column is adjusted, coated 140um, 365nm light source UVA-LED ultraviolet lamp is used for irradiation curing, silicon oil release film is coated, and the above forms a double-sided adhesive structure with a total thickness of 180um, the color light is blue-green, the blue-violet light blocking rate is 98.2% at 200nm-395nm, the 410nm blue light blocking rate is 79%, and the 430nm blue light blocking rate is 58%; the steel glass of the AF without silk screen is pasted to the thickness of 400um, the exhaust speed is tested, the automatic exhaust is very slow, and the help of external force is needed to paste well, the color stability is tested under high temperature 85℃ and high humidity 85% aging for 168 hours; the color temperature before aging is 6823K under D65 light source, and the color temperature after aging is 6486K, and the color temperature change is large.

[0054] Table 1:

[0055]

[0056] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and in the spirit or basic characteristics of the present application.

[0057] In this case, the present application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0058] In addition, it should be understood that although the present application is described in the specification, each embodiment only contains one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by the person skilled in the art.

Claims

1. A quick exhaust anti-blue light double-sided tape, characterized in that: The base film layer (6) is provided with a low-adhesion pressure-sensitive adhesive layer (7) at the bottom, and a blue light prevention layer coating (5) is arranged on the upper surface of the base film layer (6); the upper surface of the blue light prevention layer coating (5) is provided with a color migration prevention coating (4); the color migration prevention coating (4) is bonded with a light-cured high-adhesion pressure-sensitive adhesive layer (3) above, and the light-cured high-adhesion pressure-sensitive adhesive layer (3) is bonded with a light-cured high-adhesion pressure-sensitive adhesive exhaust layer (2) above.

2. The quick-release blue light protection double-sided tape according to claim 1, wherein: The base film layer (6) is a sheet body made of PET material, and the thickness is 10-250 um.

3. The quick-release blue light protection double-sided tape of claim 1, wherein: The thickness of the color migration prevention coating (4) is 1-5 um.

4. The protection structure of the quick exhaust anti-blue light double-sided tape according to claim 1, characterized in that: The tempered glass (1) is arranged above the light-cured high-adhesion pressure-sensitive adhesive exhaust layer (2), and the protective bottom film (8) is arranged at the bottom of the low-adhesion pressure-sensitive adhesive layer (7).

5. The quick exhaust anti-blue light double-sided adhesive tape protection structure according to claim 4, characterized in that: The thickness of the tempered glass (1) is 150-1000 um, and the side of the tempered glass (1) bonded with the light-cured high-adhesion pressure-sensitive adhesive exhaust layer (2) is further provided with a silk screen frame.

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