CN106566432A - A kind of high-strength OCA optical adhesive and its manufacturing method - Google Patents
A kind of high-strength OCA optical adhesive and its manufacturing method Download PDFInfo
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- CN106566432A CN106566432A CN201610975951.XA CN201610975951A CN106566432A CN 106566432 A CN106566432 A CN 106566432A CN 201610975951 A CN201610975951 A CN 201610975951A CN 106566432 A CN106566432 A CN 106566432A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 28
- 239000000853 adhesive Substances 0.000 title abstract description 16
- 230000001070 adhesive effect Effects 0.000 title abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 229920003023 plastic Polymers 0.000 claims abstract description 42
- 239000004033 plastic Substances 0.000 claims abstract description 42
- 239000003292 glue Substances 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 24
- 238000001723 curing Methods 0.000 claims description 22
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 16
- 239000004593 Epoxy Substances 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 15
- 229920000728 polyester Polymers 0.000 claims description 15
- 229920002635 polyurethane Polymers 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000002834 transmittance Methods 0.000 claims description 6
- 238000000016 photochemical curing Methods 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims 6
- 206010008190 Cerebrovascular accident Diseases 0.000 claims 3
- 208000006011 Stroke Diseases 0.000 claims 3
- 229920001187 thermosetting polymer Polymers 0.000 claims 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 75
- 239000012790 adhesive layer Substances 0.000 abstract description 47
- 239000010408 film Substances 0.000 abstract description 26
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 239000012788 optical film Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 15
- 239000004814 polyurethane Substances 0.000 description 12
- 229920002799 BoPET Polymers 0.000 description 8
- 238000001029 thermal curing Methods 0.000 description 5
- 239000005341 toughened glass Substances 0.000 description 4
- 239000008096 xylene Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
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Abstract
本发明公开了一种高强度OCA光学胶及其制造方法，该光学胶具有强度大、厚度大，良品率高的优点。本发明自上而下包括三层：轻离型膜、使用层、重离型膜，使用层分为5层，使用层自上而下包括：第一OCA胶层、第一超薄塑料层、第二OCA胶层、第二超薄塑料层、第三OCA胶层。本发明保证了产品的强度，使产品不易断裂，避免了生产超厚OCA光学膜时，一次性涂布过厚的OCA光学胶水而带来的良品率低的问题。
The present invention discloses a high-strength OCA optical adhesive and a manufacturing method thereof, wherein the optical adhesive has the advantages of high strength, large thickness and high yield rate. The present invention comprises three layers from top to bottom: a light release film, a use layer and a heavy release film, and the use layer is divided into 5 layers, which comprise from top to bottom: a first OCA adhesive layer, a first ultra-thin plastic layer, a second OCA adhesive layer, a second ultra-thin plastic layer and a third OCA adhesive layer. The present invention ensures the strength of the product, makes the product not easy to break, and avoids the problem of low yield rate caused by applying too thick OCA optical adhesive at one time when producing ultra-thick OCA optical films.
Description
技术领域technical field
本发明属于胶粘材料技术领域，具体说，是特别涉及一种高强度加厚OCA光学胶。The invention belongs to the technical field of adhesive materials, and specifically relates to a high-strength thickened OCA optical adhesive.
背景技术Background technique
钢化玻璃膜因为其具有硬度高、韧性低的特点，能有效的防止摔碎屏幕，同时具有贴合简单、经久耐用的特点而在市场上得到广泛运用。然而，目前应用于钢化玻璃的OCA光学胶膜强度不够，现有的OCA光学胶结构主要为无基材的特殊双面胶，这种OCA光学胶往往存在着强度不够和厚度增加时生产良品率低下的问题。Tempered glass film is widely used in the market because of its high hardness and low toughness, which can effectively prevent the screen from being broken, and at the same time, it is easy to fit and durable. However, the strength of the OCA optical adhesive film currently applied to tempered glass is not enough. The existing OCA optical adhesive structure is mainly a special double-sided adhesive without a substrate. This OCA optical adhesive often has insufficient strength and a high yield when the thickness increases. Lower problem.
发明内容Contents of the invention
本发明的目的是为了克服现有技术的不足，提供一种高强度加厚OCA光学胶及其制造方法，该光学胶具有强度大、厚度大，良品率高的优点，优化钢化玻璃膜功能，提升其使用保护性能。The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a kind of high-strength thickened OCA optical adhesive and its manufacturing method, the optical adhesive has the advantages of high strength, large thickness, high yield, and optimizes the function of tempered glass film. Improve its use protection performance.
为达到上述目的，本发明采用以下方案：To achieve the above object, the present invention adopts the following scheme:
一种高强度OCA光学胶，自上而下包括三层：轻离型膜、使用层、重离型膜，使用层分为5层，使用层自上而下包括：第一OCA胶层、第一超薄塑料层、第二OCA胶层、第二超薄塑料层、第三OCA胶层；A high-strength OCA optical adhesive, including three layers from top to bottom: light release film, use layer, and heavy release film. The use layer is divided into 5 layers, and the use layer includes from top to bottom: the first OCA adhesive layer, The first ultra-thin plastic layer, the second OCA adhesive layer, the second ultra-thin plastic layer, and the third OCA adhesive layer;
轻离型膜基材为：PET、PVC、PC、PE、PP、OPP中的任意一种，厚度为25μm～75μm，离型力为2～20g/f，基材上涂布硅油；The base material of the light release film is any one of PET, PVC, PC, PE, PP, OPP, the thickness is 25μm-75μm, the release force is 2-20g/f, and the base material is coated with silicone oil;
重离型膜基材为：PET、PVC、PC、PE、PP、OPP中的任意一种，厚度为50μm～125μm，离型力为30～100g/f，基材上涂布硅油；The base material of the heavy release film is any one of PET, PVC, PC, PE, PP, OPP, the thickness is 50 μm ~ 125 μm, the release force is 30 ~ 100g/f, and the substrate is coated with silicone oil;
第一超薄塑料层是PET、PVC、PC、PE、PP、OPP薄膜中的任意一种，其中以PET为主，厚度为3μm～8μm，透光率在94％以上；The first ultra-thin plastic layer is any one of PET, PVC, PC, PE, PP, OPP film, among which PET is the main one, the thickness is 3 μm ~ 8 μm, and the light transmittance is above 94%;
第二超薄塑料层是PET、PVC、PC、PE、PP、OPP薄膜中的任意一种，其中以PET为主，厚度为3μm～8μm，透光率在94％以上。The second ultra-thin plastic layer is any one of PET, PVC, PC, PE, PP, OPP films, among which PET is the main one, the thickness is 3 μm-8 μm, and the light transmittance is above 94%.
在一些实施例中，所述第一OCA胶层位于第一超薄塑料层的上表面，第二OCA胶层位于第一超薄塑料层的下表面，第二超薄塑料层位于第二OCA胶层的下表面，第三OCA胶层位于第二OCA胶层的下表面。In some embodiments, the first OCA adhesive layer is located on the upper surface of the first ultra-thin plastic layer, the second OCA adhesive layer is located on the lower surface of the first ultra-thin plastic layer, and the second ultra-thin plastic layer is located on the second OCA On the lower surface of the adhesive layer, the third OCA adhesive layer is located on the lower surface of the second OCA adhesive layer.
在一些实施例中，所述第一OCA胶层的OCA胶水是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合，固化方式是光固化或热固化，其中以ΜMV光固化方式为主，厚度为50～100μm；In some embodiments, the OCA glue of the first OCA glue layer is one of acrylic, polyurethane, epoxy polyester and a combination thereof, and the curing method is light curing or thermal curing, wherein MMV light curing The method is the main method, and the thickness is 50-100 μm;
第一OCA胶层的原料组份与重量配比为：The raw material components and weight ratio of the first OCA adhesive layer are:
OCA胶：60～80份；OCA glue: 60-80 parts;
溶剂：20～40份；Solvent: 20-40 parts;
溶剂采用甲苯、二甲苯的一种及混合物；Solvent adopts a kind of toluene, xylene and mixture;
制备中加入溶剂，制备后挥发掉。Solvents are added during preparation and evaporated after preparation.
第一OCA胶层的OCA胶原料组成配比表(重量份)The OCA glue raw material of the first OCA glue layer is made up ratio table (weight part)
在一些实施例中，所述第二OCA胶层的OCA胶是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合，固化方式是光固化或热固化，其中以ΜMV光固化方式为主，厚度为50～100μm；In some embodiments, the OCA glue of the second OCA glue layer is one of acrylic, polyurethane, epoxy polyester and a combination thereof, and the curing method is light curing or thermal curing, wherein MMV light curing The method is the main method, and the thickness is 50-100 μm;
第二OCA胶层的原料组份与重量配比为：The raw material components and weight ratio of the second OCA adhesive layer are:
OCA胶：60～80份；OCA glue: 60-80 parts;
溶剂：20～40份；Solvent: 20-40 parts;
溶剂采用甲苯、二甲苯的一种及混合物；Solvent adopts a kind of toluene, xylene and mixture;
制备中加入溶剂，制备后挥发掉。Solvents are added during preparation and evaporated after preparation.
第二OCA胶层的OCA胶原料组成配比表(重量份)The OCA glue raw material of the second OCA glue layer is made up ratio table (weight part)
在一些实施例中，所述第三OCA胶层的OCA胶是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合，固化方式是光固化或热固化，其中以ΜMV光固化方式为主，厚度为50～100μm；In some embodiments, the OCA glue of the third OCA glue layer is one of acrylic, polyurethane, epoxy polyester and a combination thereof, and the curing method is light curing or thermal curing, wherein MMV light curing The method is the main method, and the thickness is 50-100 μm;
第三OCA胶层的原料组份与重量配比为：The raw material component and weight proportion of the 3rd OCA adhesive layer are:
OCA胶：60～80份；OCA glue: 60-80 parts;
溶剂：20～40份；Solvent: 20-40 parts;
溶剂采用甲苯、二甲苯的一种及混合物；Solvent adopts a kind of toluene, xylene and mixture;
制备中加入溶剂，制备后挥发掉。Solvents are added during preparation and evaporated after preparation.
第三OCA胶层的OCA胶原料组成配比表(重量份)The OCA glue raw material of the 3rd OCA glue layer is made up ratio table (weight part)
一种高强度OCA光学胶的制备方法，方法如下：A preparation method of high-strength OCA optical glue, the method is as follows:
A、在离型力为50g/f、厚度100μm的重离型膜上用刮刀涂布一层70μm厚的OCA胶水(OCA胶的固含量为100％)，经ΜMV灯固化，得到第三OCA胶层5，后在第三OCA胶层上覆上一层5μm厚的第二超薄塑料层(PET薄膜)；A. On a heavy release film with a release force of 50g/f and a thickness of 100 μm, apply a layer of 70 μm thick OCA glue (the solid content of the OCA glue is 100%) with a scraper, and cure it with an MMV lamp to obtain the third OCA Adhesive layer 5, the second ultra-thin plastic layer (PET film) of one deck 5 μ m thick is covered on the third OCA adhesive layer;
B、在步骤A的第二超薄塑料层(PET薄膜)另外一面涂布一层70μm厚的OCA胶水(OCA胶的固含量为100％)，经ΜMV灯固化，得到第二OCA胶层，后在第二OCA胶层上覆上一层5μm厚的第一超薄塑料层(PET薄膜)；B, on the other side of the second ultra-thin plastic layer (PET film) of step A, coat one deck of 70 μm thick OCA glue (the solid content of OCA glue is 100%), solidify through MMV lamp, obtain the second OCA glue layer, Then cover the first ultra-thin plastic layer (PET film) with a thickness of 5 μm on the second OCA adhesive layer;
C、在步骤B的第一超薄塑料层(PET薄膜)的另外一面涂布一层70μm厚的OCA胶水(OCA胶的固含量为100％)，经ΜMV灯固化后，得到第一OCA胶层，在第一OCA胶层上覆上一层50μm厚的轻离型膜。C, on the other side of the first ultra-thin plastic layer (PET film) of step B, coat one deck of 70 μm thick OCA glue (the solid content of OCA glue is 100%), after curing by MMV lamp, obtain the first OCA glue Layer, on the first OCA adhesive layer, a layer of 50μm thick light release film is covered.
本发明的OCA光学胶，由于在光学胶层中加入了超薄塑料层，强度得到增强，保证了产品的强度，使产品不易断裂。另外，由于光学胶层可以分三步涂布，避免了生产超厚OCA光学膜时，一次性涂布过厚的OCA光学胶水而带来的良品率低的问题，有更好的使用手感。The OCA optical adhesive of the present invention, because the ultra-thin plastic layer is added to the optical adhesive layer, the strength is enhanced, the strength of the product is guaranteed, and the product is not easy to break. In addition, since the optical adhesive layer can be applied in three steps, it avoids the problem of low yield rate caused by one-time application of too thick OCA optical glue when producing ultra-thick OCA optical film, and has a better use feeling.
附图说明Description of drawings
图1为本发明实施例的结构示意图；Fig. 1 is the structural representation of the embodiment of the present invention;
图2为本发明实施例使用层的示意图。Fig. 2 is a schematic diagram of layers used in an embodiment of the present invention.
附图标记说明：Explanation of reference signs:
轻离型膜10，使用层20，第一OCA胶层21，第一超薄塑料层22，第二OCA胶层23，第二超薄塑料层24，第三OCA胶层25，重离型膜30。Light release film 10, use layer 20, first OCA adhesive layer 21, first ultra-thin plastic layer 22, second OCA adhesive layer 23, second ultra-thin plastic layer 24, third OCA adhesive layer 25, heavy release type Film 30.
具体实施方式detailed description
为能进一步了解本发明的特征、技术手段以及所达到的具体目的、功能，解析本发明的优点与精神，藉由以下通过实施例对本发明做进一步的阐述。In order to further understand the features, technical means, and achieved specific objectives and functions of the present invention, and to analyze the advantages and spirit of the present invention, the present invention will be further described through the following examples.
本发明所提供的一种高强度OCA光学胶，自上而下包括三层：轻离型膜10(剥离层)、使用层20、重离型膜30(剥离层)。A high-strength OCA optical adhesive provided by the present invention includes three layers from top to bottom: a light release film 10 (peeling layer), a use layer 20, and a heavy release film 30 (peeling layer).
本发明产品主要分为三层结构：使用层20(OCA光学胶层)、轻离型膜10、重离型膜30。其中OCA光学胶层为使用层20。The product of the present invention is mainly divided into three layers: the use layer 20 (OCA optical adhesive layer), the light release film 10, and the heavy release film 30. Wherein the OCA optical adhesive layer is the use layer 20 .
轻离型膜10可以是：PET、PVC、PC、PE、PP、OPP中的任意一种，厚度为25μm～75μm，离型力为2～20g/f；重离型膜30可以是：PET、PVC、PC、PE、PP、OPP中的任意一种，厚度为50μm～125μm，离型力为30～100g/f。The light release film 10 can be any one of PET, PVC, PC, PE, PP, OPP, the thickness is 25μm-75μm, and the release force is 2-20g/f; the heavy release film 30 can be: PET , any one of PVC, PC, PE, PP, OPP, the thickness is 50μm~125μm, and the release force is 30~100g/f.
使用层20又细分为5层，依次是：第一OCA胶层21，第一超薄塑料层22，第二OCA胶层23，第二超薄塑料层24，第三OCA胶层25。The use layer 20 is further subdivided into 5 layers, which are: the first OCA adhesive layer 21 , the first ultra-thin plastic layer 22 , the second OCA adhesive layer 23 , the second ultra-thin plastic layer 24 , and the third OCA adhesive layer 25 .
第一OCA胶层21位于第一超薄塑料层22的上表面，第一OCA胶层21的OCA胶可以是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合。固化方式可以是光固化的，也可以是热固化的。其中以ΜMV光固化方式为主，厚度为50～100μm；The first OCA glue layer 21 is located on the upper surface of the first ultra-thin plastic layer 22, and the OCA glue of the first OCA glue layer 21 can be one of acrylic, polyurethane, epoxy polyester and a combination thereof. The curing method can be light curing or thermal curing. Among them, the MMV light curing method is the main method, and the thickness is 50-100 μm;
第一超薄塑料层22可以是PET、PVC、PC、PE、PP、OPP薄膜中的任意一种，其中以PET为主，厚度为3μm～8μm，透光率在94％以上。The first ultra-thin plastic layer 22 can be any one of PET, PVC, PC, PE, PP, OPP films, among which PET is the main one, the thickness is 3 μm-8 μm, and the light transmittance is above 94%.
第二OCA胶层23位于第一超薄塑料层22的下表面，该第二OCA胶层23的OCA胶可以是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合。固化方式可以是光固化的，也可以是热固化的。其中以ΜMV光固化方式为主。厚度为50～100μm。The second OCA adhesive layer 23 is located on the lower surface of the first ultra-thin plastic layer 22 , and the OCA adhesive of the second OCA adhesive layer 23 can be one of acrylic, polyurethane, epoxy polyester and combinations thereof. The curing method can be light curing or thermal curing. Among them, MMV light curing is the main method. The thickness is 50-100 μm.
第二超薄塑料层24位于第二OCA胶层23的下表面，第二超薄塑料层24可以是PET、PVC、PC、PE、PP、OPP薄膜中的任意一种，其中以PET为主，厚度为3μm～8μm，透光率在94％以上。The second ultra-thin plastic layer 24 is located on the lower surface of the second OCA adhesive layer 23, and the second ultra-thin plastic layer 24 can be any one of PET, PVC, PC, PE, PP, OPP films, wherein PET is the main , the thickness is 3μm ~ 8μm, and the light transmittance is above 94%.
第三OCA胶层25位于第二OCA胶层23的下表面，该第三OCA胶层25的OCA胶可以是丙烯酸类、聚氨酯类、环氧聚酯类中的一种及其组合。固化方式可以是光固化的，也何以是热固化的。其中以ΜMV光固化方式为主，厚度为50～100μm。The third OCA adhesive layer 25 is located on the lower surface of the second OCA adhesive layer 23 , and the OCA adhesive of the third OCA adhesive layer 25 may be one of acrylic, polyurethane, epoxy polyester and a combination thereof. The curing method can be light curing or heat curing. Among them, the MMV photocuring method is the main method, and the thickness is 50-100 μm.
第一OCA胶层21、第二OCA胶层23及第三OCA胶层25可以是不同的OCA胶水及混合物，也可以是同一种OCA胶水。优选方案是3层OCA胶是不同的OCA混合物胶水。The first OCA glue layer 21 , the second OCA glue layer 23 and the third OCA glue layer 25 may be different OCA glues and mixtures, or may be the same OCA glue. The preferred solution is that the 3 layers of OCA glue are different OCA mixture glues.
第一超薄塑料层22与第二超薄塑料层24可以是同一种材料，也可以是不同的材料，优先方案是取同一种材料。The first ultra-thin plastic layer 22 and the second ultra-thin plastic layer 24 can be made of the same material or different materials, and the preferred solution is to use the same material.
制备方法如下：The preparation method is as follows:
1、在离型力为50g/f、厚度100μm的重离型膜30上用刮刀涂布一层70μm厚的OCA光学胶水(OCA胶的固含量为100％)，经ΜMV灯固化，得到第三OCA胶层25，后在第三OCA胶层25上覆上一层5μm厚的第二超薄塑料层24(PET薄膜)；1. On the heavy release film 30 with a release force of 50g/f and a thickness of 100 μm, apply a layer of 70 μm thick OCA optical glue (the solid content of the OCA glue is 100%) with a scraper, and cure it with an MMV lamp to obtain the first Three OCA adhesive layers 25, the second ultra-thin plastic layer 24 (PET film) of one deck 5 μm thickness is covered on the third OCA adhesive layer 25 behind;
2、在步骤1的第二超薄塑料层24(PET薄膜)另外一面涂布一层70μm厚的OCA光学胶水(OCA胶的固含量为100％)，经ΜMV灯固化，得到第二OCA胶层23，后在第二OCA胶层23上覆上一层5μm厚的第一超薄塑料层22(PET薄膜)；2. On the other side of the second ultra-thin plastic layer 24 (PET film) in step 1, coat a layer of OCA optical glue with a thickness of 70 μm (the solid content of the OCA glue is 100%), and solidify with an MMV lamp to obtain the second OCA glue Layer 23, the first ultra-thin plastic layer 22 (PET film) that one deck 5 μm is thick is covered on the second OCA adhesive layer 23 behind;
3、在步骤2的第一超薄塑料层22(PET薄膜)的另外一面涂布一层70μm厚的OCA光学胶水(OCA胶的固含量为100％)，经ΜMV灯固化后，得到第一OCA胶层21，在第一OCA胶层21上覆上一层50μm厚的轻离型膜10。3. On the other side of the first ultra-thin plastic layer 22 (PET film) in step 2, apply a layer of 70 μm thick OCA optical glue (the solid content of OCA glue is 100%), after curing by MMV lamps, the first OCA adhesive layer 21 , a light release film 10 with a thickness of 50 μm is covered on the first OCA adhesive layer 21 .
使用时，剥离重离型膜30，把第三OCA胶层25贴合到保护面上，再剥离轻离型膜10，在第一OCA胶层21上贴覆钢化玻璃，进而在保护面上只留下使用层20(第一OCA胶层21，第一超薄塑料层22，第二OCA胶层23，第二超薄塑料层24，第三OCA胶层25)。During use, peel off the heavy release film 30, attach the third OCA adhesive layer 25 to the protective surface, then peel off the light release film 10, paste tempered glass on the first OCA adhesive layer 21, and then attach the protective surface Only the use layers 20 (the first OCA adhesive layer 21, the first ultra-thin plastic layer 22, the second OCA adhesive layer 23, the second ultra-thin plastic layer 24, and the third OCA adhesive layer 25) are left.
第一OCA胶层21的OCA胶原料组成配比表(重量份)The OCA glue raw material of the first OCA glue layer 21 is composed ratio table (weight part)
第二OCA胶层23的OCA胶原料组成配比表(重量份)The OCA glue raw material of the second OCA glue layer 23 forms the ratio table (weight parts)
第三OCA胶层25的OCA胶原料组成配比表(重量份)The OCA glue raw material of the 3rd OCA glue layer 25 is made up ratio table (weight part)
优选方案是第一OCA胶层21采用D组配比，第二OCA胶层23采用B组配比，第三OCA胶层25采用E组配比。The preferred scheme is that the first OCA adhesive layer 21 adopts the ratio of group D, the second OCA adhesive layer 23 adopts the ratio of group B, and the third OCA adhesive layer 25 adopts the ratio of group E.
以上所述实施例仅表达了本发明的部分实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明的保护范围应以所附权利要求为准。The above-mentioned embodiments only express some implementations of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (6)
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