CN101831260B - Polaroid adhesive and polaroid using same - Google Patents

Polaroid adhesive and polaroid using same Download PDF

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Publication number
CN101831260B
CN101831260B CN 201010158420 CN201010158420A CN101831260B CN 101831260 B CN101831260 B CN 101831260B CN 201010158420 CN201010158420 CN 201010158420 CN 201010158420 A CN201010158420 A CN 201010158420A CN 101831260 B CN101831260 B CN 101831260B
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adhesive
polarizer
particles
pressure
diffusion
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CN 201010158420
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Chinese (zh)
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CN101831260A (en )
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刘洪雷
姚秋霞
蒲雪英
邱韶华
钟伟宏
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深圳市盛波光电科技有限公司
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Abstract

The invention discloses a polaroid adhesive, which comprises a solvent-borne type acrylate pressure-sensitive adhesive and diffusion particles of which the average particle diameter is 1 to 20 mu m, wherein the mass ratio of the diffusion particles to the pressure-sensitive adhesive is 0.001-0.1:1. Besides, the invention also discloses a polaroid, wherein at least one layer of dried polaroid adhesive is laminated between each layer of membrane materials forming the polaroid. The polaroid adhesive has the advantages that: the polaroid adhesive has a photo-diffusion function, the photo-diffusion effect can be realized by adjusting the proportion of the diffusion particles, and the practicability of the polaroid adhesive is high.

Description

偏光片用胶粘剂及使用该胶粘剂的偏光片 Polarizer use of the adhesives and adhesive polarizer

技术领域 FIELD

[0001] 本发明涉及一种偏光片用胶粘剂。 [0001] The present invention relates to an adhesive for polarizing plate. 另外,本发明还涉及使用该偏光片用胶粘剂的偏光片。 The present invention further relates to a polarizing plate using the adhesive for polarizing plate.

背景技术 Background technique

[0002] 由于LCD不发光,所以需要背光源供应充足亮度与分布均勻的光源,使其能正常显示影像,但是要将线光源(CCFL)或是点光源(LED)分布成均勻的面光源,需借助扩散膜使光线均勻。 [0002] Since the LCD does not emit light, it is necessary to supply a sufficient luminance of the backlight light source and uniformly distributed, so that it can display the image correctly, but want the line light source (CCFL) or point light source (LED) to a uniform distribution of the surface light source, It requires the use of the light diffusing film so uniformly.

[0003] 一般传统的扩散膜主要是在树脂中加入作为散射粒子的特定化学颗粒,将二者混合均勻作为光扩散液;再将光扩散液涂布于透明基材(如PET膜)上,经过干燥得到扩散膜。 [0003] Usually conventional diffusion film is mainly added to the resin particles as a particular chemical scattering particles, the light diffusion mixing the two liquid; then was coated on the light-diffusing transparent substrate (such as a PET film), after drying to obtain diffusion membrane. 光线在经过扩散层时,从两个折射率相异的介质中穿过,故光线就会发生许多折射、反射与散射的现象,如此便造成了光学扩散的效果。 In the light passes through the diffusion layer, through the medium of two distinct refractive index, it will be much light refraction, reflection and scattering phenomena occur, they cause such optical diffusion effect.

[0004] 传统扩散膜本身无胶粘性,需使用胶粘剂或者其他特殊装置才能与LCD的其他器件配合,安装流程较复杂,成本较高。 [0004] The diffusing film itself has no conventional adhesive, or other adhesives need to use a special apparatus in order to fit with other components of the LCD, the installation process more complex and costly.

发明内容 SUMMARY

[0005] 本发明的一个目的是提供一种偏光片用胶粘剂。 [0005] An object of the present invention is to provide an adhesive for polarizing plate. 本发明的另一目的是提供使用了该偏光片用胶粘剂的偏光片。 Another object of the present invention is to provide a polarizing plate using the adhesive for polarizing plate.

[0006] 本发明的技术方案是:一种偏光片用胶粘剂,包括溶剂型丙烯酸酯压敏胶和平均粒径为1〜20 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.001〜0.1 : 1。 [0006] aspect of the present invention is: A polarizing film adhesive, including pressure sensitive adhesive and a solvent-type acrylic average particle diameter of the diffusion particles 1~20 μ m, the diffusion particles and pressure-sensitive adhesive mass ratio of 0.001 ~0.1: 1.

[0007] 优选的是,所述偏光片用胶粘剂按照如下方法制备:(1)将扩散粒子置于适量润湿剂中缓慢搅拌进行预分散处理;(¾扩散粒子和压敏胶按规定的比例关系进行配比并搅拌均勻;C3)将混合物中未分散的扩散粒子过滤出来以得到所述偏光片用胶粘剂。 [0007] Preferably, the adhesive for polarizing plate was prepared as follows: (1) The appropriate amount of wetting agent diffusing particles placed in pre-dispersion treatment with slow stirring; (¾ predetermined diffusion ratio particles and pressure-sensitive and stir ratio relationship; a C3) in the mixture of non-dispersed particles are filtered off to obtain diffusion of the polarizer with an adhesive.

[0008] 优选的是,所述扩散粒子与压敏胶的质量比为:0. 005〜0. 05 : 1。 [0008] Preferably, the diffusing particles and pressure-sensitive adhesive mass ratio is: 0 005~0 05: 1.

[0009] 优选的是,所述扩散粒子的平均粒径为3〜5 μ m。 [0009] Preferably, the average particle size of the diffusion particles is 3~5 μ m.

[0010] 优选的是,所述扩散粒子为聚甲基丙烯酸甲酯或聚苯乙烯粒子。 [0010] Preferably, the diffusing particles are polymethyl methacrylate or polystyrene particles.

[0011] 优选的是,所述偏光片用胶粘剂的粘度为500〜lOOOcps。 [0011] Preferably, the viscosity of the adhesive polarizer of 500~lOOOcps.

[0012] 优选的是,所述偏光片用胶粘剂的粘度为700〜800cps。 [0012] Preferably, the viscosity of the adhesive polarizer of 700~800cps.

[0013] 优选的是,所述润湿剂是甲苯或乙酸乙酯。 [0013] Preferably, the wetting agent is toluene or ethyl acetate.

[0014] 本发明还提供了一种偏光片,在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 [0014] The present invention also provides a polarizing plate, between the layers of film material constituting the polarizer, at least one layer of the laminate through the polarizer with the adhesive drying process.

[0015] 优选的是,所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材,如带离型涂层的对苯二甲酸乙二醇酯膜上,并通过热风充分干燥后与偏光片其他部分贴合。 [0015] Preferably, the polarizer is coated with an adhesive, such as the polyethylene terephthalate film, and sufficiently dried with hot air away from the substrate by various coating type blade coating manner other portions bonded to the polarizer.

[0016] 优选的是,经干燥处理后层压在偏光片上的带扩散粒子的胶粘剂的厚度为20〜 30 μ m0 [0016] Preferably, the thickness of the adhesive after the drying process is laminated on the polarizing plate with diffusion particles is 20~ 30 μ m0

[0017] 本发明的有益效果是:本发明提供了一种带有光扩散功能的偏光片用胶粘剂,通 [0017] Advantageous effects of the present invention are: the present invention provides a polarizing plate having a light diffusing function is one kind of adhesive, through

3过调节扩散粒子的比例,其雾度可在16% -99%之间调节,实用性强。 3 by adjusting the ratio of diffusion particles, the haze can be adjusted between 16% -99%, and practical. 本发明将偏光片与扩散膜的功能相结合,简化了生产工序,降低了生产成本。 The polarizer of the present invention is combined with the function of the diffusion film, the production process is simplified, reducing production costs.

具体实施方式 detailed description

[0018] 实施例1 [0018] Example 1

[0019] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为2μπι的扩散粒子,扩散粒子与压敏胶的质量比为0.001 : 1,所述扩散粒子为聚甲基丙烯酸甲酯,所述偏光片用胶粘剂的粘度为680CPS ;本实施例偏光片用胶粘剂的制备方法如下:1.将扩散粒子置于适量乙酸乙酯中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.001 : 1进行配比并搅拌均勻;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. 07Mpa气压挤压下通过具有3μπι孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与偏光片其他部分通过压力贴合。 [0019] Example embodiment of the present adhesive sheet polarizer, comprising: a solvent-type acrylic pressure-sensitive and an average particle size of the diffusion particles 2μπι, diffusing particles and pressure-sensitive adhesive mass ratio of 0.001: 1, the diffusing particle is poly methyl methacrylate, the viscosity of the adhesive polarizer of 680CPS; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: the diffusing particles 1 was placed in an appropriate amount of ethyl acetate was slowly stirred for pre-dispersion treatment; 2. diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.001: 1 ratio and stir; 3 filter: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is the pressure-sensitive mixture with diffusing particles at 0. 07Mpa pressure pressed through the filter element having a pore size 3μπι; 4. the polarizing plate with an adhesive applied to various substrates by a doctor blade method (such as away from the type coating on the polyethylene terephthalate film), and dried by hot air sufficiently bonded to other portions by a pressure polarizer. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0020] 实施例2 [0020] Example 2

[0021] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为ΙΟμπι的扩散粒子,扩散粒子与压敏胶的质量比为0.003 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为810cps ;本实施例偏光片用胶粘剂的制备方法如下:1.将扩散粒子置于适量甲苯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.003 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0. 001倍的改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. 13Mpa气压挤压下通过具有IOym孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与 [0021] This example embodiment adhesive polarizing plate, comprising: a solvent-type acrylic pressure-sensitive and an average particle size of the diffusion particles ΙΟμπι, diffusing particles and pressure-sensitive adhesive mass ratio of 0.003: 1, the diffusing particle is poly styrene particles, the viscosity of the adhesive polarizer of 810cps; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: the diffusing particles 1 was placed in an appropriate amount of toluene was slowly stirring the wetting agent is pre-dispersion treatment; diffusion. mass ratio of the particles and pressure-sensitive and pressure-sensitive adhesive diffusion particles is 0.003: 1 ratio and stirred uniformly, and the diffusion process to add the total mass of the pressure-sensitive particles 0.001 times modified silicone surfactant to facilitate dispersion diffusing particles; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at 0. 13Mpa pressure extruded through an aperture having IOym the filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the coated polyethylene terephthalate film type terephthalic acid), and thoroughly dried with hot air after the 偏光片其他部分通过压力贴合。 Other portions of the polarizer by a pressure bonding. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0022] 实施例3 [0022] Example 3

[0023] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为3 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.005 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为760cps ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.005 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0.001倍改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. OSMpa气压挤压下通过具有5μπι孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与 [0023] Example embodiment of the present adhesive sheet polarizer, comprising: a solvent-type acrylic pressure-sensitive and average particle diameter of 3 μ m of particle diffusion, and the diffusion particle mass ratio of the pressure-sensitive 0.005: 1, the diffusion particles polystyrene particles, the viscosity of the adhesive polarizer of 760cps; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate appropriate amount of diffusing particles disposed wetting agent pre-dispersion treatment with slow stirring;. 2. the diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.005: 1 ratio and stirred uniformly, this process adds pressure sensitive adhesive and 0.001 times the total mass of diffusing particles modified silicone surfactant to facilitate dispersion diffusing particles; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at 0. OSMpa pressure extruded through an aperture having 5μπι the filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the coated polyethylene terephthalate film type terephthalic acid), and thoroughly dried with hot air after the 光片其他部分通过压力贴合。 Other portions of the light sheet by the pressure bonding. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process. [0024] 实施例4 [0024] Example 4

[0025] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为5 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.01 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为730CPS ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.01 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0.0005倍改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. OSMpa气压挤压下通过具有5 μ m孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与偏 [0025] Example of the present embodiment the polarizer with an adhesive, comprising: a solvent-type acrylic pressure-sensitive and average particle diameter of 5 μ m of particle diffusion, diffusion particles and pressure-sensitive adhesive mass ratio of 0.01: 1, the diffusion particles polystyrene particles, the viscosity of the adhesive polarizer of 730CPS; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate appropriate amount of diffusing particles disposed wetting agent pre-dispersion treatment with slow stirring;. 2. the diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.01: 1 ratio and stirred uniformly, and the process pressure sensitive diffusing particles added 0.0005 times the total mass of a modified silicone surfactant to facilitate dispersion diffusing particles; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at atmospheric pressure extruded through 0. OSMpa having 5 μ m pore size filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the coated polyethylene terephthalate film type terephthalic acid), with hot air and after sufficient drying and partial 片其他部分通过压力贴合。 Other sheet portions bonded by pressure. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0026] 实施例5 [0026] Example 5

[0027] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为3 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.035 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为780cps ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.035 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0. 001倍的改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. IMpa气压挤压下通过具有5μπι孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后 [0027] Example of the present embodiment the polarizer with an adhesive, comprising: a solvent-type acrylic pressure-sensitive and average particle diameter of 3 μ m of particle diffusion, diffusion particles and pressure-sensitive adhesive mass ratio of 0.035: 1, the diffusion particles polystyrene particles, the viscosity of the adhesive polarizer of 780cps; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate appropriate amount of diffusing particles disposed wetting agent pre-dispersion treatment with slow stirring;. 2. the diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.035: 1 ratio and stirred uniformly, and the diffusion process to add the total mass of the pressure-sensitive particles 0.001 times modified silicone a surfactant to facilitate dispersion diffusing particles; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles by extrusion pressure at 0. IMpa a filter element having a pore diameter 5μπι; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the type of coating polyethylene terephthalate films), and by after the hot air fully dry 偏光片其他部分通过压力贴合。 Other portions of the polarizer by a pressure bonding. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0028] 实施例6 [0028] Example 6

[0029] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为3 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.05 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为870cps ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.05 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0. 004倍改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. IMpa气压挤压下通过具有5 μ m孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与偏 [0029] Example embodiment of the present adhesive sheet polarizer, comprising: a solvent-type acrylic pressure-sensitive and average particle diameter of 3 μ m of particle diffusion, diffusion with the pressure-sensitive adhesive mass ratio of particles of 0.05: 1, the diffusion particles polystyrene particles, the viscosity of the adhesive polarizer of 870cps; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate appropriate amount of diffusing particles disposed wetting agent pre-dispersion treatment with slow stirring;. 2. the diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.05: 1 ratio and stirred uniformly, and the process pressure sensitive diffusing particles added 0.004 times the total mass of the surface-modified silicone the active agent particles to diffusion in the dispersion; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at 0. IMpa pressure extruded by having a 5 μ m pore size filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the type of coating polyethylene terephthalate films), and sufficiently dried by hot air and partial 片其他部分通过压力贴合。 Other sheet portions bonded by pressure. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0030] 实施例7 [0030] Example 7

[0031] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为5μπι的扩散粒子,扩散粒子与压敏胶的质量比为0.07 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为890cps ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.07 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0. 001倍的改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. 12Mpa气压挤压下通过具有5μπι孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干 [0031] Example of the present embodiment the polarizer with an adhesive, comprising: a solvent-type acrylic pressure-sensitive and an average particle size of the diffusion particles 5μπι, diffusing particles and pressure-sensitive adhesive mass ratio of 0.07: 1, the diffusing particle is poly styrene particles, the viscosity of the adhesive polarizer of 890cps; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate q.s. diffusion particle wetting agent is placed in pre-dispersion treatment with slow stirring; 2. the diffusion particles diffusing particles to the pressure-sensitive pressure-sensitive adhesive mass ratio of 0.07: 1 ratio and stirred uniformly, and the diffusion process to add the total mass of the pressure-sensitive particles 0.001 times the surface modified silicone the active agent particles to diffusion in the dispersion; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at 0. 12Mpa pressure extruded by having a 5μπι aperture filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the coated polyethylene terephthalate film type terephthalic acid), with hot air and fully dry 后与偏光片其他部分通过压力贴合。 After the rest of the polarizer by a pressure bonding. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0032] 实施例8 [0032] Example 8

[0033] 本实施例偏光片用胶粘剂,包括:溶剂型丙烯酸酯压敏胶和平均粒径为3 μ m的扩散粒子,扩散粒子与压敏胶的质量比为0.1 : 1,所述扩散粒子为聚苯乙烯粒子,所述偏光片用胶粘剂的粘度为920CPS ;本实施例偏光片用胶粘剂的制备方法如下:1.扩散粒子置于适量乙酸乙酯润湿剂中缓慢搅拌进行预分散处理;2.扩散粒子和压敏胶按扩散粒子与压敏胶的质量比为0.1 : 1进行配比并搅拌均勻,此过程添加压敏胶和扩散粒子总质量0.001 倍的改性硅氧烷表面活性剂以便于分散扩散粒子;3.过滤:用以去除压敏胶中未分散的扩散粒子,其具体操作方法是将压敏胶与扩散粒子的混合液在0. 15Mpa气压挤压下通过具有5 μ m孔径的过滤芯;4.将所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材(如带离型涂层的对苯二甲酸乙二醇酯膜)上,并通过热风充分干燥后与 [0033] Example embodiment of the present adhesive sheet polarizer, comprising: a solvent-type acrylic pressure-sensitive and average particle diameter of 3 μ m of particle diffusion, diffusion particles and pressure-sensitive adhesive mass ratio of 0.1: 1, the diffusion particles polystyrene particles, the viscosity of the adhesive polarizer of 920CPS; polarizer embodiment of the present embodiment follows the preparation method of the adhesive: 1 ethyl acetate appropriate amount of diffusing particles disposed wetting agent pre-dispersion treatment with slow stirring;. 2. the diffusion particles diffusing particles and pressure-sensitive and pressure-sensitive adhesive mass ratio of 0.1: 1 ratio and stirred uniformly, and the diffusion process to add the total mass of the pressure-sensitive 0.001 times the particle-modified silicone surfactant agent to facilitate the dispersion diffusing particles; filter 3: pressure-sensitive adhesive for removing undispersed diffusing particles, the specific operation method is a mixture with the pressure sensitive adhesive diffusion particles at 0. 15Mpa pressure extruded by having 5 μ m pore size filter element; 4. the polarizing plate with an adhesive applied by blade coating on various substrates in a manner (e.g., away from the type of coating polyethylene terephthalate films), and by after sufficient drying and hot air 光片其他部分通过压力贴合。 Other portions of the light sheet by the pressure bonding. 在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的所述偏光片用胶粘剂。 The composition of the film material between the layers of the polarizer, at least one layer by laminating the polarizer with the adhesive drying process.

[0034] 对实施例的产品检测: [0034] The product of Example Detection:

[0035] 检测方法:透过率、雾度的检测:在25士1°C/60士5% RH环境下,将实施例1-实施例8中制成的偏光片用胶粘剂涂布在测试窗上,测其透过率及雾度,每个样品测3个点,以平均值表示,参照标准=ASTMD 1003,ISO 13458-1,ISO 14782 ;检测仪器:NDH_5000雾度测试仪; [0035] Detection method: detecting the transmittance, haze: polarizer 25 persons at 1 ° C / 60 persons 5% RH, the Example 1 in the embodiment of Example 8 is made with an adhesive applied to the test on the window, the transmittance and the haze were measured for each sample three measurement points, an average value, said reference standard = ASTMD 1003, ISO 13458-1, ISO 14782; instrumentation: NDH_5000 haze tester;

[0036] 与玻璃粘着力的检测:将本发明中胶粘剂用刮刀涂布于PET离型膜上,经充分干燥后与偏光片涂布。 [0036] The adhesion of the glass detection: the present invention, the adhesive is applied with a doctor blade on a PET release film, the coating was sufficiently dried and after the polarizer. 将贴合品裁成25mm(宽)XlSOmm(长)的样品,撕去离型膜,用胶辊将胶粘剂与偏光片的贴合品的胶粘剂侧贴在玻璃上,贴合部分长约135mm,涂布压力为^g,涂布后静置1小时。 The bonded product was cut into samples 25mm (width) XlSOmm (length), from the tear film, with plastic roller attached to the adhesive side of the adhesive bonding the polarizer attached to the glass article, bonded portion about 135mm, applying a pressure of ^ g, after coating was allowed to stand for 1 hour. 在电子拉力试验机上进行180°剥离力测试,行进速度为200mm/ min,测得的数据作为与胶粘剂与玻璃的粘接力。 Performed on an electronic tensile tester at a 180 ° peel strength test, the traveling speed of 200mm / min, and the measured data as an adhesive and glass adhesion. 测试3个样品,取平均值。 3 samples tested and averaged. 参照标准:GB/ T2791-1995、GB/T2790-1995。 Reference standard: GB / T2791-1995, GB / T2790-1995. 检测仪器:XLW智能型电子拉力试验机。 Testing instruments: XLW intelligent electronic tensile testing machine.

[0037] 检测结果见表一: [0037] The test results in Table I:

[0038] [0038]

Figure CN101831260BD00071

[0039] 对市售扩散膜的检测: [0039] Detection of a commercially available diffusion film:

[0040] 对照例1 :市售扩散膜样品:TS-508 ; [0040] Comparative Example 1: a commercially available diffusion film sample: TS-508;

[0041] 对照例2 :市售扩散膜样品:TS_506 [0041] Comparative Example 2: a commercially available diffusion film sample: TS_506

[0042] 检测方法:在25 士1°C /60 士5% RH环境下,将对照例1_对照例2中的扩散膜放置在测试窗上,测其透过率及雾度,每个样品测3个点,以平均值表示,参照标准=ASTMD 1003,IS013458-1, ISO 14782 ;检测仪器:NDH_5000 雾度测试仪; [0042] Detection method: 25 persons at 1 ° C / 60 persons 5% RH,, Control Example 1_ diffusing film of Comparative Example 2 is placed in the test window, the transmittance and the haze were measured for each samples measuring 3 points, represents an average value, a standard reference = ASTMD 1003, IS013458-1, ISO 14782; instrumentation: NDH_5000 haze tester;

[0043] 检测结果参见表二: [0043] The detection results in Table II:

[0044] [0044]

Figure CN101831260BD00072

[0045] 由表一和表二可以得出以下结论:本发明偏光片用胶粘剂的透过率、雾度及光扩散率与市售扩散膜相近,并且本发明偏光片用胶粘剂具有粘合性可直接粘贴在偏光片基材上使用,使用方便。 [0045] Table I and Table II may be concluded that: a transmittance of the polarizing plate of the present invention, the adhesive, and the haze of the light diffusing film similar to commercial diffusion, and the adhesive for polarizing plate of the present invention having adhesive It can be directly attached to the polarizing sheet substrate used, easy to use.

Claims (11)

  1. 1. 一种偏光片用胶粘剂,其特征是:包括溶剂型丙烯酸酯压敏胶和平均粒径为1〜 20μπι的扩散粒子,扩散粒子与压敏胶的质量比为0.001〜0.1 : 1;所述扩散粒子为聚甲基丙烯酸甲酯或聚苯乙烯粒子。 An adhesive for polarizing plate, wherein: a solvent-based acrylic pressure-sensitive and an average particle diameter of 1~ 20μπι diffusion particles, the mass ratio of the diffusion particles and pressure-sensitive adhesive is 0.001~0.1: 1; the said diffusing particles are polymethyl methacrylate or polystyrene particles.
  2. 2.根据权利要求1所述偏光片用胶粘剂,其特征是:其按照如下方法制备:(1)将扩散粒子置于适量润湿剂中缓慢搅拌进行预分散处理;(¾扩散粒子和压敏胶按规定的比例关系进行配比并搅拌均勻;C3)将混合物中未分散的扩散粒子过滤出来以得到所述偏光片用胶粘剂。 2. The polarizer according to claim 1 with an adhesive, wherein: prepared as follows: (1) The appropriate amount of wetting agent diffusing particles placed in pre-dispersion treatment with slow stirring; (¾ diffusing particles and a pressure-sensitive gum ratio between predetermined ratio and were uniformly stirred; a C3) in the mixture of non-dispersed particles are filtered off to obtain diffusion of the polarizer with an adhesive.
  3. 3.根据权利要求1所述的偏光片用胶粘剂,其特征是:所述扩散粒子与压敏胶的质量比为:0. 005 〜0. 05 : 1。 According to claim 1, the adhesive for polarizing plate, wherein: the diffusing pressure-sensitive adhesive mass ratio of the particles: 0005 ~ 0 05: 1.
  4. 4.根据权利要求1到3中任意一项所述的偏光片用胶粘剂,其特征是:所述扩散粒子的平均粒径为3〜5 μ m。 According to claim 1 to 3, any one of the polarizer with an adhesive, characterized in that: the average particle diameter of the diffusion particles is 3~5 μ m.
  5. 5.根据权利要求1所述的偏光片用胶粘剂,其特征是:所述偏光片用胶粘剂的粘度为500 〜lOOOcps。 The polarizer according to claim 1 with an adhesive, characterized in that: the viscosity of the adhesive polarizer was 500 ~lOOOcps.
  6. 6.根据权利要求2所述的偏光片用胶粘剂,其特征是:所述偏光片用胶粘剂的粘度为700 〜800cps。 According to claim 2, the polarizing plate with an adhesive, characterized in that: the viscosity of the adhesive polarizer was 700 ~800cps.
  7. 7.根据权利要求6所述的偏光片用胶粘剂,其特征是:所述润湿剂是甲苯或乙酸乙酯。 According to claim 6, said adhesive for polarizing plate, wherein: said wetting agent is toluene or ethyl acetate.
  8. 8. 一种偏光片,其特征是:在组成该偏光片的各层膜材之间,至少层压一层经干燥处理的如权利要求1-7中的任意一项所述的偏光片用胶粘剂。 A polarizing plate, wherein: the composition of the film material in between the layers of the polarizer, at least one layer of the dried treated laminated polarizing plate of any one of claims 1-7 as claim adhesive.
  9. 9.根据权利要求8所述的偏光片,其特征是:所述偏光片用胶粘剂通过刮刀涂布方式涂布在各种基材上,并通过热风充分干燥后与偏光片其他部分贴合。 9. The polarizer according to claim 8, wherein: the polarizing plate with an adhesive coated on various substrates by a doctor blade coating method, and dried by hot air sufficiently bonded to other portions of the polarizer.
  10. 10.根据权利要求9所述的偏光片,其特征是,所述基材为带离型涂层的对苯二甲酸乙二醇酯膜。 10. The polarizer according to claim 9, wherein said substrate is a polyethylene terephthalate film away from terephthalic acid type coating.
  11. 11.根据权利要求8所述的偏光片,其特征是:经干燥处理后层压在偏光片上的带扩散粒子的胶粘剂的厚度为20〜30 μ m。 11. The polarizer according to claim 8, characterized in that: The thickness of the adhesive after the drying process is laminated on the polarizing plate with diffusion particles is 20~30 μ m.
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