CN102666094B - 离型膜及其制备方法 - Google Patents
离型膜及其制备方法 Download PDFInfo
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- CN102666094B CN102666094B CN201080052159.8A CN201080052159A CN102666094B CN 102666094 B CN102666094 B CN 102666094B CN 201080052159 A CN201080052159 A CN 201080052159A CN 102666094 B CN102666094 B CN 102666094B
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- mould release
- release membrance
- methyl
- acrylate
- resin
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- 238000002360 preparation method Methods 0.000 title abstract description 18
- 238000004049 embossing Methods 0.000 claims abstract description 52
- 210000002469 basement membrane Anatomy 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 35
- 230000003746 surface roughness Effects 0.000 claims abstract description 23
- 239000011342 resin composition Substances 0.000 claims abstract description 17
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 17
- 239000000057 synthetic resin Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims description 71
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 16
- 239000003085 diluting agent Substances 0.000 claims description 13
- 229920002799 BoPET Polymers 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 5
- 239000005041 Mylar™ Substances 0.000 claims description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
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- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N alpha-methacrylic acid Natural products CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 40
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 31
- 239000000178 monomer Substances 0.000 description 25
- 150000001875 compounds Chemical class 0.000 description 21
- 229920000642 polymer Polymers 0.000 description 21
- 238000001723 curing Methods 0.000 description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 16
- 239000000203 mixture Substances 0.000 description 13
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 150000002148 esters Chemical class 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
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- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 5
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- 125000005250 alkyl acrylate group Chemical group 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
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- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
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- 125000000623 heterocyclic group Chemical group 0.000 description 3
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- 125000002769 thiazolinyl group Chemical group 0.000 description 3
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 2
- BXGYYDRIMBPOMN-UHFFFAOYSA-N 2-(hydroxymethoxy)ethoxymethanol Chemical compound OCOCCOCO BXGYYDRIMBPOMN-UHFFFAOYSA-N 0.000 description 2
- NLGDWWCZQDIASO-UHFFFAOYSA-N 2-hydroxy-1-(7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-yl)-2-phenylethanone Chemical compound OC(C(=O)c1cccc2Oc12)c1ccccc1 NLGDWWCZQDIASO-UHFFFAOYSA-N 0.000 description 2
- NJWGQARXZDRHCD-UHFFFAOYSA-N 2-methylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(C)=CC=C3C(=O)C2=C1 NJWGQARXZDRHCD-UHFFFAOYSA-N 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 2
- 150000004056 anthraquinones Chemical class 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N ethyl trimethyl methane Natural products CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 235000011090 malic acid Nutrition 0.000 description 2
- YPHQUSNPXDGUHL-UHFFFAOYSA-N n-methylprop-2-enamide Chemical compound CNC(=O)C=C YPHQUSNPXDGUHL-UHFFFAOYSA-N 0.000 description 2
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
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- NSXOFALHYZPMNH-UHFFFAOYSA-N 1-(3-methylmorpholin-4-yl)prop-2-en-1-one Chemical compound CC1COCCN1C(=O)C=C NSXOFALHYZPMNH-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明涉及一种离型膜,其包括一个含合成树脂的基膜;一个压纹花样层,其在基膜上形成并具有多于一个含有光固化树脂组合物的固化物的突起,并涉及一种用于制备该离型膜的方法,其中由于所述离型膜的表面粗糙度低,本发明可提供具有优异可加工性和独特且美观外型的离型膜。
Description
技术领域
本发明涉及具有压纹花样层的离型膜(releasefilm),及制备该膜的方法。
背景技术
对于多数反射薄片、广告片、内膜等,当其背面出于产品应用的原因使用粘合胶处理后,通过使用离型纸或离型膜保护粘合胶的面。也就是,通常通过以辊压和铸造(rollingandcasting)方法制备材料薄片、在离型纸上涂布粘合胶,并随后将经粘合胶涂布的面与所述材料薄片结合在一起而制备粘合薄片。
以前,纸材料上用硅溶液处理的离型纸已被广泛用于容易地将离型纸从构筑用的粘合胶上剥离。
通常,粘合薄片应被制成在待用粘合胶涂布的离型纸面上具有优异平滑度,以便用粘合胶在离型纸上均匀涂布以达到均一的粘合强度。这种情况下,存在的问题是当产品被粘至所需被粘物时,空气无法漏出从而使薄片表面是鼓起的。
为了解决上述问题,在待用粘合胶涂布的离型纸表面上以规则间隔做出压纹花样,从而当使用离型纸时提供通道,空气可由其从离型纸表面流出。
然而,通过常规方法形成的具有压纹花样的离型纸具有高的表面粗糙度从而存在导致不良外观的问题。
上述离型纸目前应用于许多领域。例如,其广泛用于各种工业领域,包括用于生产物品的过程中,所述物品例如包括所有类型贴纸的标签、包括一次性带等的药物、用于包装的胶带、沥青路面、自动组装过程、聚氨酯人造革,等等。因此,需要研制能够保持上述产品独特(exclusive)外观的离型纸。
发明内容
技术问题
本发明旨在满足上述技术发展的需要。本发明的一个目标是提供一种离型膜及其制备方法,其中通过使用光固化树脂在含有合成树脂的基膜上形成三维压纹花样,从而可容易地完成粘合薄片的构筑,而且使用合成树脂和光固化树脂可降低表面粗糙度从而使用上述离型膜可形成独特外观。
问题的解决方法
作为解决上述目标的方法,本发明提供包括合成树脂的基膜;具有压纹花样层的离型膜,其在基膜上形成并含有多于一个的含有光固化树脂组合物的固化物的突起。
此外,作为解决上述目标的方法,本发明提供制备这种离型膜的方法,其中该方法包括第一步通过使用光固化树脂在包括合成树脂的基膜上形成压纹花样;第二步固化在第一步中形成的压纹花样。
发明的有益效果
根据本发明,可以提供具有压纹花样的离型膜,其中使用上述离型膜可以降低表面粗糙度从而实现优异的表面外观。此外,本发明可提供有效且简单的制备所述离型膜的方法。
附图说明
图1是本发明一个实施方案的离型膜的横截面结构草图;
图2是本发明其他实施方案的离型膜的横截面结构草图;
图3是本发明另一个实施方案的离型膜的横截面结构草图;
图4是本发明另一个实施方案的离型膜的横截面结构草图;并且
图5是本发明一个实施方案的制备离型膜的方法的流程草图。
具体实施方式
本发明涉及离型膜,其包括含有合成树脂的基膜;和压纹花样层,其在基膜上形成并具有多于一个含有光固化树脂组合物的固化物的突起。
在下文中,将更详细地描述本发明的离型膜。
如上文所述,本发明的离型膜具有一个含有合成树脂的基膜;以及一个压纹花样层,其在基膜上形成并具有多于一个含有光固化树脂组合物的固化物的突起。
此处,不限制合成树脂的种类,但例如优选使用具有低表面粗糙度的合成树脂。特别地,本发明可使用包括多于一种选自下列的树脂的合成树脂膜:例如聚对苯二甲酸乙二醇酯(PET)、聚乙烯(PE)、聚丙烯(PP)、聚丙烯酸酯、聚氨酯和基于聚酯的树脂。更具体地,本发明可使用包括多于一种选自下列的树脂的合成树脂膜:聚对苯二甲酸乙二醇酯(PET)和聚丙烯(PP)。
含有上述合成树脂的基膜可通过形成膜的方法制备,所述方法在本领域内已知。此外,由于本发明使用一种合成树脂作为基膜,本发明的离型膜可具有相较于常规使用的纸质材料明显更低的表面粗糙度,从而离型膜的表面粗糙度可显著减小。
与此同时,本发明的离型膜具有低表面粗糙度从而可实现独特外观。例如,离型膜中含有的基膜的表面粗糙度(Rt)可小于3μm,且尤其小于1μm,但不特别限制与此。表面粗糙度(Rt)的最低限没有较多限制且可以大于0.1μm。此处,表面粗糙度(Rt)意味着表面粗糙度的最大值。
当表面粗糙度大于3μm时,令人担忧的是表面粗糙度过高导致含有该膜的粘合薄片的表面外观不良。
测量上述离型膜表面粗糙度的方法可使用本领域通常使用的方法。对方法没有限制,但例如表面粗糙度可通过使用已知测量仪测定,例如使用MITUTOYOCompany的SJ301Model,并且可通过比较使用平均粗糙度值Rz和最大粗糙度值Rt测定。
本发明的离型膜也在基膜上形成且具有含突起的压纹花样,所述突起包括光固化树脂组合物的固化物。
可用于本发明的光固化树脂组合物的种类没有具体限制,可使用含有本领域公知的组分的光固化树脂组合物。
可用于本发明的光固化树脂组合物的实例可包括含有光固化低聚物、稀释剂(thinner)和光引发剂的树脂组合物。
光固化低聚物的实例可包括聚酯丙烯酸酯、环氧丙烯酸酯、聚醚丙烯酸酯、聚氨酯丙烯酸酯、硅丙烯酸酯(siliconacrylate)和基于丙烯酰基的聚合物(acryl-basedpolymer)的一种或两种以上混合物。可以优选使用其中的基于丙烯酰基的聚合物,但不限制于此。
上句使用的每种低聚物的具体种类具体限制为本领域已知的一般光固化树脂组合物。例如,聚酯多元醇和(甲基)丙烯酸的缩合反应物可用作聚酯丙烯酸酯,通过将(甲基)丙烯酸加入环氧树脂反应的反应物可用作环氧丙烯酸酯,以及二(甲基)丙烯酸聚亚烷基二醇酯等可用作聚醚丙烯酸酯。
此外,聚氨酯丙烯酸酯可通过将含有羟基的(甲基)丙烯酸酯在聚氨酯预聚物上——其中端部具有异氰酸酯基,其通过将聚酯型或聚醚型多元醇化合物与异氰酸酯化合物反应得到——反应制备。异氰酸酯化合物的具体实例包括2,4-甲苯二异氰酸酯、2,6-甲苯二异氰酸酯、1,3-苯二亚甲基二异氰酸酯、1,4-苯二亚甲基二异氰酸酯或二苯基甲烷-4,4'-二异氰酸酯等,并且(甲基)丙烯酸酯的实例可包括(甲基)丙烯酸-2-羟基乙酯、(甲基)丙烯酸-2-羟基丙酯、或(甲基)丙烯酸酯等,但不限制于此。
此外,含有基于丙烯酰基的单体的单体混合物的低聚物、部分聚合物或聚合物可用作基于丙烯酰基的高分子量聚合物。
本发明的基于丙烯酰基的高分子量聚合物可通过聚合或部分聚合单体混合物而制备,所述单体混合物包括多于一种选自以下组的单体:(甲基)丙烯酸烷基酯、(甲基)丙烯酸芳基酯、(聚)亚烷基二醇单(甲基)丙烯酸酯、(甲基)丙烯酸烷氧基烷基酯、杂环(甲基)丙烯酸酯、含羧基化合物、含羟基化合物、含氮化合物、含缩水甘油基化合物、基于苯乙烯的化合物和羧酸乙烯酯。
(甲基)丙烯酸烷基酯的具体实例可以包括含有C1至C20的非环或环状的烷基基团或直链或支链的(甲基)丙烯酸烷基酯,如(甲基)丙烯酸甲酯、(甲基)丙烯酸乙酯、(甲基)丙烯酸丙酯、(甲基)丙烯酸丁酯、(甲基)丙烯酸己酯、(甲基)丙烯酸环己酯、(甲基)丙烯酸2-乙基己酯、(甲基)丙烯酸月桂酯、(甲基)丙烯酸硬脂酯、(甲基)丙烯酸十八烷酯、(甲基)丙烯酸异辛酯、(甲基)丙烯酸异壬酯、(甲基)丙烯酸异癸酯、(甲基)丙烯酸十二烷酯、(甲基)丙烯酸甲基环己酯、(甲基)丙烯酸异冰片酯等。(甲基)丙烯酸芳基酯的实例可包括(甲基)丙烯酸芳基酯,例如(甲基)丙烯酸苯酯、(甲基)丙烯酸苄酯、(甲基)丙烯酸氯苯酯、(甲基)丙烯酸甲氧基苯酯、(甲基)丙烯酸溴苯酯或(甲基)丙烯酸苯氧乙酯等。单(甲基)丙烯酸(聚)亚烷基二醇酯的实例可包括单(甲基)丙烯酸乙二醇酯、(甲基)丙烯酸1,3-丙二醇酯、单(甲基)丙烯酸聚乙二醇酯等。(甲基)丙烯酸烷氧基烷基酯的实例可包括(甲基)丙烯酸烷氧基烷基酯,如(甲基)丙烯酸甲氧基甲酯、(甲基)丙烯酸乙氧基甲酯、(甲基)丙烯酸乙氧基乙氧基乙酯、(甲基)丙烯酸丙氧基乙酯、(甲基)丙烯酸丁氧基乙酯或(甲基)丙烯酸乙氧基丙酯。杂环(甲基)丙烯酸酯的实例可包括(甲基)丙烯酸四氢糠基酯等。
此外,含羧基化合物的实例可包括(甲基)丙烯酸羧乙酯、(甲基)丙烯酸、2-(甲基)丙烯酰氧基乙酸、3-(甲基)丙烯酰氧基丙酸、4-(甲基)丙烯酰氧基丁酸、二聚丙烯酸、衣康酸、苹果酸、无水苹果酸等。含羟基化合物的实例可包括(甲基)丙烯酸2-羟乙酯、(甲基)丙烯酸2-羟丙酯、(甲基)丙烯酸4-羟丁酯、(甲基)丙烯酸6-羟己酯、(甲基)丙烯酸8-羟辛酯、(甲基)丙烯酸2-羟基乙二醇酯、(甲基)丙烯酸2-羟基丙二醇酯等。含氮单体的实例可包括(甲基)丙烯酰胺、二甲基氨基丙基(甲基)丙烯酰胺、(甲基)丙烯腈、(甲基)丙烯酰吗啉、n-取代(甲基)丙烯酰胺(如N-羟甲基(甲基)丙烯酰胺)等。含缩水甘油基化合物的实例可包括(甲基)丙烯酸缩水甘油酯等,基于苯乙烯的化合物的实例可包括苯乙烯、α-甲基苯乙烯等,碳酸乙烯酯的实例可包括乙酸乙烯酯等,但不限制与此。
同样,构成本发明基于丙烯酰基的高分子量聚合物的单体混合物可进一步包括上述组分中的多官能丙烯酸酯。可用于本发明的多官能丙烯酸酯的种类可不具体限定。本发明可使用的如下,但不限制于此:例如双官能丙烯酸酯,如二(甲基)丙烯酸丁二醇酯、二(甲基)丙烯酸戊二醇酯、二(甲基)丙烯酸己二醇酯、二(甲基)丙烯酸新戊二醇酯、二(甲基)丙烯酸聚乙二醇酯、二(甲基)丙烯酸二乙二醇酯、二(甲基)丙烯酸三乙二醇酯、二(甲基)丙烯酸二丙二醇酯、新戊二醇己二酸酯二(甲基)丙烯酸酯、羟基新戊酸新戊二醇二(甲基)丙烯酸酯、二(甲基)丙烯酸二环戊酯、己内酯改性二(甲基)丙烯酸二环戊烯基酯、环氧乙烷改性二(甲基)丙烯酸酯、二(甲基)丙烯酰氧乙基异氰脲酸酯、烯丙基化二(甲基)丙烯酸环己基酯、三环癸二甲醇(甲基)丙烯酸酯、二羟甲基二环戊烷二(甲基)丙烯酸酯、环氧乙烷改性六氢邻苯二甲酸二(甲基)丙烯酸酯、三环癸二甲醇(甲基)丙烯酸酯、新戊二醇改性三甲基丙烷二(甲基)丙烯酸酯、金刚烷二(甲基)丙烯酸酯(adamantinedi(meth)acrylate)、9,9-二[4-(2-丙烯酰氧乙氧基)苯基]氟等;3-官能丙烯酸酯,如三羟甲基丙烷三(甲基)丙烯酸酯、二季戊四醇三(甲基)丙烯酸酯、丙酸改性的二季戊四醇三(甲基)丙烯酸酯、季戊四醇三(甲基)丙烯酸酯、三(甲基)丙烯酸丙三醇酯、环氧丙烷改性三羟甲基丙烷三(甲基)丙烯酸酯、3-官能聚氨酯(甲基)丙烯酸酯、三(甲基)丙烯酰氧乙基异氰脲酸酯等;4-官能丙烯酸酯,如四(甲基)丙烯酸二丙三醇酯、季戊四醇四(甲基)丙烯酸酯等;5-官能丙烯酸酯,如丙酸改性二季戊四醇四(甲基)丙烯酸酯等;以及6-官能丙烯酸酯,如二季戊四醇六(甲基)丙烯酸酯、己内酯改性二季戊四醇六(甲基)丙烯酸酯、聚氨酯(甲基)丙烯酸酯(如异氰酸酯单体和三羟甲基丙烷三(甲基)丙烯酸酯的反应物)等。
对于本发明,当在上述所有类型的单体中结合含多于两种单体的单体混合物时,它们的比例没有具体限制,且可根据所需性质自由选择。
一种使用根据本发明的上述单体混合物制备基于丙烯酰基的高分子量聚合物的方法可以不具体限定,并且例如所述基于丙烯酰基的高分子量聚合物可使用一般方法(如本体聚合等)通过聚合或部分聚合单体混合物制备。
本发明的光固化树脂组合物可包括稀释剂连同上文提到的低聚物。稀释剂可通过调节树脂组合物的粘性而改善其可加工性,或可通过在固化反应中加成聚合或交联成为固化结构的一部分。
选自基于丙烯酰基的单体、基于聚氨酯基的丙烯酸酯的单体(urethane-basedacrylate-basedmonomer)、基于环氧丙烯酸酯的单体、基于乙烯基的单体等的多于一种的单体可用作上述可用于本发明的稀释剂的具体实例。其中优选使用基于丙烯酰基的单体,且可以特别地使用单官能或多官能丙烯酸酯,但不限制于此。
所述单官能或多官能丙烯酸酯可适当地选自丙烯酸烷基酯、(甲基)丙烯酸芳基酯、(聚)亚烷基二醇单(甲基)丙烯酸酯、(甲基)丙烯酸烷氧基烷基酯、杂环(甲基)丙烯酸酯;以及多官能丙烯酸酯,例如考虑到反应目的在上文中所提到的。
此外,本领域已知且包含于本发明的可固化树脂组合物中的光固化引发剂可用作光固化引发剂,且例如所述光固化引发剂可通过将多于一种或两种的下述化合物结合而使用:基于安息香醚的化合物、基于苯乙酮的化合物、基于蒽醌的化合物、基于噻吨酮的化合物、基于缩酮的化合物、基于苯甲酮的化合物。
更具体地,基于安息香醚的化合物实例可包括安息香、安息香甲醚、安息香乙醚、安息香异丙醚、安息香正丁醚、安息香苯醚等,且基于苯乙酮的化合物实例可包括苯乙酮、2,2-二乙氧基苯乙酮、2,2-二甲氧基-2-苯基苯乙酮、2,2-二乙氧基-2-苯基苯乙酮、1,1–二氯苯乙酮、1–羟基环己基苯乙酮等。
此外,基于蒽醌的化合物实例可包括2-甲基蒽醌、2-戊基蒽醌等,基于噻吨酮的化合物实例可包括2,4-二甲基噻吨酮、2,4-二乙基噻吨酮、2-氯代噻吨酮、2,4-二异丙基噻吨酮、1-氯-4-丙氧基噻吨酮等,且基于缩酮的化合物实例可包括二苯甲酮、二乙基氨基二苯甲酮、4,4'二-二乙基氨基二苯甲酮、3,3-二甲基-4-甲氧基二苯甲酮、3,3',4,4'-四-(叔丁基过氧羰基)二苯甲酮等。
此外,4-苯甲酰基-4'-甲基二苯硫醚、氧杂蒽酮、2-甲基-1-[4-(甲硫基)苯基]-2-吗啉基-1-丙烷-1-酮、2-苯甲基-2-二甲氨基-1-(4-吗啉基苯基)-丁烷-1-酮2,4,6-三甲基苯甲酰基二苯基氧化膦等。
同样,用于本发明的光固化树脂除活性低聚物、活性稀释剂和光引发剂外可进一步包括本领域已知的多种添加剂,且例如可进一步包括光聚合加速剂或感光剂,如对二甲基氨基苯甲酸异戊酯、苯甲酸2-二甲基氨基乙酯等。
本发明中不具体限制用于制备上述光聚合树脂组合物的方法。例如,本发明可通过将低聚物,如上述聚酯丙烯酸酯、环氧丙烯酸酯、聚醚丙烯酸酯、聚氨酯丙烯酸酯、硅丙烯酸酯等,与添加剂,如稀释剂、光引发剂等,混合制备一种树脂组合物。此外,在根据本发明用上述基于丙烯酰基的高分子量聚合物组成树脂聚合物的情况下,例如含用于构成基于丙烯酰基的高分子量聚合物的单体以及待用作稀释剂的单体的单体混合物可在例如自由基本体聚合等过程中部分聚合,以产生混合有高分子量聚合物和稀释剂的聚合物,且随后可以向上述聚合物中加入其他添加剂,如光引发剂,以产生树脂组合物。
此外,包含于光固化树脂组合物中材料的含量不具体限制,但例如包含的稀释剂可为10至4000重量份,包含的光聚合引发剂可为0.1至5重量份,基于100重量份光固化低聚物计。
与此同时,本发明的压纹花样意指形成有通过使用光固化树脂组合物形成的三维压纹花样的层。在这种情况下,压纹花样的形状和尺寸不具体限制,可根据离型膜的用途适当控制,且例如可以为如图1至图4描绘的具有规则样式突起的形状。所述突起可在离型膜的平面上形成通道形或点形。压纹花样中的突起的最高高度(P)可为1至20μm,底边的宽度(W)可以为100至500μm。更具体地,突起的高度可以为5至15μm,底边的宽度可以为200至400μm。
图1是本发明一个实施方案的离型膜横截面的草图。如图1所示,本发明的实施方案的离型膜100可在基膜110上具有含压纹花样的层130。
同时,本发明的离型膜可进一步包括在压纹花样上形成的离型处理层。
所述离型处理层在压纹花样层上形成以进行离型处理,其具有高可分离性,且例如可包括硅材料。
所述硅材料可不受限制,可包括本领域已知的所有硅材料,且例如可包括含烯基的有机聚硅氧烷、有机氢聚硅氧烷等。
此处,所述烯基可具体为乙烯基、丙烯基、丁烯基、戊烯基、己烯基等。所述有机聚硅氧烷可具体为二甲基乙烯基甲硅烷氧基,其中在分子链两端的二甲基聚甲硅烷氧基基团是封闭的;二甲基硅氧烷-甲基乙烯基硅氧烷共聚物,其中在分子链两端的二甲基乙烯基硅氧烷基团是封闭的;二甲基硅氧烷-甲基苯基硅氧烷共聚物,其中在分子链两端的二甲基乙烯基甲硅烷氧基基团是封闭的;甲基乙烯基聚硅氧烷,其中在分子链两端的三甲基甲硅烷氧基基团是封闭的;二甲基硅氧烷-甲基乙烯基硅氧烷共聚物,其中在分子链两端的三甲基甲硅烷氧基基团是封闭的;二甲基硅氧烷-甲基(5-己烯基)硅氧烷共聚物,其中在分子链两端的三甲基乙烯基甲硅烷氧基基团是封闭的;二甲基硅氧烷-甲基乙烯基硅氧烷-甲基苯基硅氧烷共聚物,其中在分子链两端的二甲基乙烯基甲硅烷氧基基团是封闭的;甲基乙烯基聚硅氧烷,其中在分子链两端的二甲基羟基是封闭的;二甲基硅氧烷-甲基乙烯基硅氧烷共聚物,其中在分子链两端的二甲基羟基是封闭的;等等。
可混合一种或多于两种的分为上文例示的含烯基的有机聚硅氧烷的材料。
此外,硅材料除上述材料外可进一步包括基于铂的固化催化剂。所述基于铂的固化催化剂的实例可包括氯铂酸、氯铂酸的醇溶液、氯铂酸和烯烃的络合物、氯铂酸和乙烯基硅氧烷的络合物、氯铂酸和多种酮的络合物、铂浸渍氧化铝的精细粉末、铂浸渍氧化硅的精细粉末、铂黑,等等。
离型处理层中可包括上文例示的一种或多于两种的基于铂的固化催化剂。
图2是本发明一个实施方案的离型膜横截面的草图。参考图2,本发明实施方案的离型膜200除基膜210和压纹花样层230之外可进一步包括在压纹花样层230上形成的离型处理层250。
同时,本发明的离型膜可进一步包括在基膜和压纹花样层之间形成的第一底层(firstprimerlayer)。
此处,所述第一底层起到形成光滑表面以达到对在基膜上形成的压纹花样层的更强粘合性的作用。第一底层的类型不具体限制,但可包括多于一种选自聚丙烯酸酯树脂、聚酯树脂、聚烯烃树脂和聚氨酯树脂的物质。
图3是本发明另一实施方案的离型膜横截面的草图。参考图3,本发明另一实施方案的离型膜300包括基膜310、压纹花样层330和离型处理层350、且可在基膜310和压纹花样层330之间进一步包括第一底层370。
此外,本发明的离型膜可进一步包括在基膜底面形成的第二底层。
所述第二底层起到保护基膜底面的作用,且第二底层的种类不具体限定,但例如可包括多于一种选自聚乙烯树脂、聚丙烯树脂、丙烯酸酯树脂、聚氨酯树脂、硅树脂和聚酯树脂的物质。
图4是本发明另一实施方案的离型膜横截面结构的草图。参考图4,本发明另一实施方案的离型膜400包括基膜400、第一底层470、压纹花样层430和离型处理层450,且可在基膜410底面进一步包括第二底层490。
此外,本发明涉及制备离型膜的方法,包括第一步使用光固化树脂在含有合成树脂的基膜上形成压纹花样;以及第二步固化第一步形成的压纹花样。
第一步是使用光固化树脂在上文所述的基膜上形成压纹花样的步骤。
对于第一步,压纹花样可使用各种本领域已知的涂布方法形成,且涂布方法的类型不具体限制,但例如可包括任何一种选自以下的涂布方法:直接研磨涂布(directgrindingcoating)、胶印涂布(offsetcoating)和筛网涂布(screencoating)。具体地,涂布可使用任何一种选自以下的方法进行:直接研磨涂布、反转研磨涂布、凹版胶印涂布、微凹版涂布、丝网涂布、圆网涂布(rotaryscreencoating)、直接辊涂布、反转辊涂布、幕式涂布、刀涂布、气刀涂布、棒式涂布等。更具体地,涂布可使用任何一种选自以下的方法进行:凹版涂布和直接辊涂布。
同时,第二步是固化包括光固化树脂的压纹花样层的步骤。
也就是,此步骤是为了固化光固化树脂的紫外辐射,且可使用所有可用于固化光固化树脂的光源。且光源和光固化条件不具体限制,但例如,第二步的光固化可如下进行:用300至450nm的紫外光辐射根据压纹花样涂布的光固化树脂0.1至120秒。
在下文中,制备本发明实施方案的离型膜的方法将参考图5更详细说明。
首先,当使用导辊将基膜110通过具有压纹花样的辊10时,填充在辊的压纹花样中的光固化树脂根据压纹花样被涂布在基膜110上。
随后,在具有压纹花样的基膜110被连续移动至辊10的同时,使用紫外辐射设备30辐射紫外光固化压纹花样。
由以上过程,可制备含有在基膜110上形成的压纹花样层130的离型膜。
然而,上述过程仅为示例,且本发明的制备离型膜的方法并不限制于此。
发明实施方案
实施例
在下文中,本发明将参考本发明的附加实施例和非本发明的对比实施例更详细说明,但本发明的范围不限于以下实施例。
制备实施例1
光固化树脂的制备
将含有50重量份甲基丙烯酸甲酯、49.8重量份丙烯酸乙酯、0.2重量份己二醇二丙烯酸酯和0.1重量份的AIBN引发剂的单体混合物通过本体自由基聚合在60℃下聚合1小时制备混合有光固化低聚物和单体类型稀释剂的部分聚合物。所述部分聚合物中光固化低聚物的含量为10重量份且稀释剂的含量为90重量份。光固化低聚物的含量如下测定:从干燥聚合物中挥发用作稀释剂的单体成分后将残余成分称重,所述干燥聚合物通过在150℃干燥1g由本体自由基聚合得到的部分聚合物60分钟获得。
随后,向制备的部分聚合物加入0.5重量份2,4,6-三甲基苯甲酰基苯基氧化膦(BASF),基于100重量份总固体重量计,以制备光固化树脂。
制备实施例2
硅离型处理溶液的制备
将购自DowCorning的100重量份的Syl-OffQ2-7784和3重量份的Syl-OffQ2-7560结合制备硅离型处理溶液。
实施例1
准备PET膜(购自SKC,SH22),其表面用丙烯酸类树脂(acrylresin)处理且厚度为75μm,以及具有压纹花样的凹版涂布辊,其凹下部分的平均深度为5μm。随后,将由制备实施例1制备的光固化树脂填入凹版涂布辊的凹下部分,且通过导辊将PET膜移至凹版涂布辊。当PET膜被粘附至凹版涂布辊上时,进行印刷将光固化树脂组合物涂至PET膜上从而制备含有压纹花样的压纹花样层。
除上述过程外,在凹版涂布辊的上部使用紫外汞灯的紫外辐射干燥压纹花样,随后将PET膜和固化的压纹花样层从凹版辊分离。将由制备实施例2制备的硅离型处理溶液使用棒式涂布机以10μm的厚度施用于固化的压纹花样上,并随后在100℃干燥2分钟。
由上述过程,制备本发明实施例1的离型膜。
对比实施例1
对比实施例1的离型纸在与实施例1相似的条件下制备,除了使用纸代替在实施例1中用作基膜的PET膜。
测试实施例
表面粗糙度的测量
使用MITUTOYO的SJ301Model仪测定实施例1的离型膜的表面粗糙度和对比实施例1的离型纸的表面粗糙度。结果在下表1中列出。
表1
Ra(μm) | Rt(μm) | |
实施例1 | 1.0 | 6.0 |
对比实施例1 | 4.5 | 10.0 |
如上表1所示,实施例1的最大表面粗糙度(Rt)和平均表面粗糙度(Ra)小于对比实施例1,从而可独特地实现离型膜的外观。
Claims (12)
1.一种离型膜,包括
一个含有合成树脂的基膜;和
一个压纹花样层,其在基膜上形成并且含有多于一个含有光固化树脂组合物的固化物的凸起,
其中凸起的最大高度为1至20μm,且底边的宽为100至500μm,并且
其中基膜的表面粗糙度(Rt)小于3μm。
2.权利要求1的离型膜,其中合成树脂包括多于一种选自下列的树脂:聚乙烯、聚丙烯、聚丙烯酸酯、聚氨酯和基于聚酯的树脂。
3.权利要求1的离型膜,其中光固化树脂组合物包含一种光固化低聚物、一种稀释剂和一种光聚合引发剂。
4.权利要求3的离型膜,其中光固化低聚物包括多于一种选自下列的物质:聚酯丙烯酸酯、环氧丙烯酸酯、聚氨酯丙烯酸酯、和硅丙烯酸酯。
5.权利要求1的离型膜,还包括一个在压纹花样层上形成的硅离型处理层。
6.权利要求1的离型膜,还包括一个在基膜与压纹花样层之间形成的第一底层。
7.权利要求6的离型膜,其中第一底层包括多于一种选自以下的树脂:聚丙烯酸酯树脂、聚酯树脂、聚烯烃树脂和聚氨酯树脂。
8.权利要求6的离型膜,还包括一个在基膜远离压纹花样层的一面上形成的第二底层。
9.权利要求8的离型膜,其中第二底层包括多于一种选自以下的树脂:聚乙烯树脂、聚丙烯树脂、丙烯酸酯树脂、聚氨酯树脂、硅树脂和聚酯树脂。
10.一种制备离型膜的方法,包括:
第一步,使用光固化树脂在含有合成树脂的基膜上形成压纹花样;和
第二步,固化在第一步中形成的压纹花样以在基膜上形成多于一个凸起,其中凸起的最大高度为1至20μm,且底边的宽为100至500μm,并且
其中基膜的表面粗糙度(Rt)小于3μm。
11.权利要求10的制备离型膜的方法,其中第一步中的压纹花样通过任何一种选自下组的涂布方法形成:直接凹版涂布、反转凹版涂布、凹版胶印涂布、微凹版涂布、丝网涂布、圆网涂布、刀涂布、棒式涂布和直接辊式涂布。
12.权利要求10的制备离型膜的方法,其中第二步的固化通过波长为300至450nm的紫外光辐射压纹花样0.1至120秒进行。
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