CN106753001A - 光学透明双面胶带 - Google Patents

光学透明双面胶带 Download PDF

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CN106753001A
CN106753001A CN201611036531.1A CN201611036531A CN106753001A CN 106753001 A CN106753001 A CN 106753001A CN 201611036531 A CN201611036531 A CN 201611036531A CN 106753001 A CN106753001 A CN 106753001A
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任太荣
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    • 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
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • 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
    • 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
    • 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
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate
    • 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
    • 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
    • C09J2469/00—Presence of polycarbonate
    • C09J2469/006—Presence of polycarbonate in the substrate

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Abstract

本发明公开了一种光学透明双面胶带，它分为三层，依次为OCA光学胶层、透明基材层和OCA光学胶层。所述透明基材层为PET材料、PC材料或PMMA材料。所述OCA光学胶层的厚度不大于0.6mm。所述透明基材层的厚度不大于2.0mm。本发明的光学透明双面胶带能够很容易做厚，三层结构的设计，使其厚度范围更宽泛，整体的厚度可以通过调整两边的OCA光学胶层和中间的透明基材层的厚度来达成；无论是采用溶剂法还是采用无溶剂法均可实现宽泛的厚度范围；模切性能良好，由于OCA光学胶中间有一层透明基材阻隔，所以能有效提高了模切过程中的良品率，降低了单片光学透明双面胶带的成本。

Description

光学透明双面胶带
技术领域
本发明涉及一种光学胶，特别是涉及一种应用于触摸屏领域的光学透明双面胶带。
背景技术
光学透明胶，即OCA光学胶，是一种透光性优良的透明膜结构，它也是应用于电容式触摸屏中的主要光学部件之一。现有技术的电容式触摸屏在制作过程中要达到无气泡贴合比较困难，因此需要采用厚型的光学透明胶才能获得可接受的良品率。一般5英寸以内的电容式触摸屏使用厚度为0.175mm—0.2mm的光学透明胶，5英寸以上的电容式触摸屏使用厚度为0.25mm—0.35mm的光学透明胶。现有技术中的光学透明胶主要是以纯胶膜的形式存在，虽然其具有材料均一、折射率一致、填充性能好的优点，但还是有以下两点不足：(1)现有技术中的光学透明胶，其原材料制造困难，如果用溶剂法涂布，很难做厚，并且易黄变，影响电容式触摸屏的品质，如果用无溶剂的制造方法，制造设备和环境要求较高，中国国内现有生产条件不能满足，并且还存在厚度上限和良品率低的问题；(2)现有技术的光学透明胶的模切性能不好，在加工过程中，不易排废，良品率比较低，从而导致单片光学透明胶的成本较高。
发明内容
针对现有技术中的不足，本发明提供了一种光学透明双面胶带，以解决现有技术中光学透明胶很难做厚、模切性能不好的问题。
为解决上述技术问题，本发明提供了一种光学透明双面胶带，它分为三层，依次为OCA光学胶层、透明基材层和OCA光学胶层。
通过将光学透明双面胶带设计成三层结构，中间层采用透明基材，透明基材的两面采用OCA光学胶，这样整个光学透明双面胶带的厚度可以通过调整OCA光学胶或者透明基材的厚度来进行调整，从而解决了厚型光学透明双面胶带制造困难的问题；增加的透明基材，使OCA光学胶的中间有一层基材阻隔，从而能有效提高模切过程中的良品率，也无形中降低了单片光学透明双面胶带的成本。
所述透明基材层为PET材料、PC材料或PMMA材料。这三种材料是具有成膜性能的光学级膜材，其共性是折射率接近于光学透明胶，具有一定的耐老化性能。
所述OCA光学胶层的厚度不大于0.6mm。此厚度范围可完全覆盖触摸屏行业的用胶需求。
所述透明基材层的厚度不大于2.0mm。如果透明基材层的厚度超过2.0mm，普通刀模很难将其切断，不利于模切生产。
本发明具有如下有益技术效果：
(1)光学透明双面胶带能够很容易做厚，三层结构的设计，使其厚度范围更宽泛，整体的厚度可以通过调整两边的OCA光学胶层和中间的透明基材层的厚度来达成；无论是采用溶剂法还是采用无溶剂法均可实现宽泛的厚度范围。
(2)模切性能良好，由于OCA光学胶中间有一层透明基材阻隔，所以能有效提高了模切过程中的良品率，降低了单片光学透明双面胶带的成本。
附图说明
图1为本发明光学透明双面胶带的剖面结构示意图；
图中：1-OCA光学胶层，2-透明基材层。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。
如图1所示，一种光学透明双面胶带，它分为三层，依次为OCA光学胶层1、透明基材层2和OCA光学胶层1，可通过涂布工艺将OCA光学胶层1涂布于所述透明基材层2的表面。所述透明基材层2为PET材料、PC材料或PMMA材料。所述OCA光学胶层1的厚度不大于0.6mm，可根据具体生产要求进行具体数值的调整。所述透明基材层2的厚度不大于2.0mm，可根据具体生产要求进行具体数值的调整。
本实施例将光学透明双面胶带设计成三层结构，中间层采用透明基材，透明基材的两面采用OCA光学胶，这样整个光学透明双面胶带的厚度可以通过调整OCA光学胶或者透明基材的厚度来进行调整。增加的透明基材，使OCA光学胶的中间有一层基材阻隔，从而能有效提高模切过程中的良品率。
上列详细说明是针对本发明之一可行实施例的具体说明，该实施例并非用以限制本发明的专利范围，凡未脱离本发明所为的等效实施或变更，均应包含于本案的专利范围中。

Claims (3)

1.一种光学透明双面胶带，其特征在于：它分为四层，依次为OCA光学胶层、有机高分子层、透明基材层和OCA光学胶层，所述透明基材层为PET材料、PC材料或PMMA材料。
2.根据权利要求1所述的光学透明双面胶带，其特征在于：所述OCA光学胶层的厚度不大于0.6mm。
3.根据权利要求1或2所述的光学透明双面胶带，其特征在于：所述透明基材层的厚度不大于2.0mm。
CN201611036531.1A 2016-11-22 2016-11-22 光学透明双面胶带 Pending CN106753001A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113031136A (zh) * 2021-04-22 2021-06-25 苏州三鑫时代新材料股份有限公司 一种新型复合扩散板

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113031136A (zh) * 2021-04-22 2021-06-25 苏州三鑫时代新材料股份有限公司 一种新型复合扩散板
WO2022222167A1 (zh) * 2021-04-22 2022-10-27 苏州三鑫时代新材料股份有限公司 一种新型复合扩散板
CN113031136B (zh) * 2021-04-22 2024-08-06 苏州三鑫时代新材料股份有限公司 一种新型复合扩散板

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