200920199 六、發明說明： 【發明所屬之技術領域】 本發明係關於可於液晶顯示元件基板之電極形成面上形成 膜厚均勻之配向膜的柔性印刷版及其製造方法，薄膜及液晶I員 示元件之製造方法。 【先前技術】 柔性印刷版係使用於瓦楞紙板、紙盒、紙袋、軟包裝用膜等 包裝、封裝領域，以密封條為代表之包裝材印刷領域，表面整 飾等清漆塗層或建材、電子零件等之美容或商標印刷領域等廣 泛之印刷用途領域中。其主要理由在於：相較於套版印刷或凹 版印刷等，柔性印刷版係來源於僅將柔軟且富有彈性之凸部上 積滿的油墨單純地轉印之簡單印刷原理者，可舉出如下特點： 不僅油墨本身較為簡單，而且可對廣泛之承印材料進行印刷而 並非僅可對膜或紙印刷。 作為柔性印刷版，習知通常係使用赠造版或闕版為代表 之橡膠版、或者使用利生光線而製版之感光性樹脂版。另外， 近年來’印刷物製作步驟中之印刷資料之電子化得到發展，因 此開始普遍使縣触彳t之輯資關接地或直接地輸出至 作為印刷版的材料上等使用雷射光之柔性印刷版製造方法。 柔性印刷版之製版方法巾，作為使㈣射光之轉方式之製 造例’可舉出··暫且製成銀鹽膜或熱感性臈料刷圖像光罩膜 後，使用紫外線硬化型感光性樹脂來製版的方法；以及利用使 97129201 〇 200920199 作為圖像光罩之熱感層與該感光性樹脂表面一體化之 CTP(C〇mpUter T〇 Plate之簡稱)版之例。作為後者之具體示 例，如曰本專利特開H08_305030號公報中所揭示般，使具有 - 熱雷射感應性、且為紫外線不穿透性之光罩樹脂層，以幾以之 厚度形成於紫外線硬化性感光性樹脂表面上而與之複合一 體’對該熱雷射感應層直接描繪雷射光，藉此燒灼掉該光罩樹 脂之印刷圖像部分而形成圖像光罩。其結果，由於紫外線可穿 透之印刷圖像光罩與熱雷射感應層形成為一體，因此，藉由其 後對整個面照射紫外線，可與習知之製版同樣地使印刷圖像部 分選擇性地硬化，未硬化部分係藉由溶麵影或熱顯影等公知 之方法進行處理。 另一方面，作為直接製作柔性印刷版之方法例，迄今為止一 直知用使用一氧化碳雷射等高功率雷射來雕刻橡膠版之方 ，已揭示有解像能力更優異且生產性得到改善之雷射雕刻 ’版製版法’其係於樹脂版上將非圖像部分直接燒灼掉，從而形 成起伏凸部。（日本專利第3801592號公報） 作為在包裳材印刷領域以外之特別用途中充分發揮柔性印 =方式之特點的示例，可舉出：要求高塗膜品質性能的作為液 晶顯示裝置之配向膜印刷版_途。用於制途之柔性印刷 要求無針孔、膜薄且厚度精度高之塗佈性能，因此，面向 、。亥領域’各家公司正在對可進行高精度薄膜印刷之柔性印刷版 進行創思》又叶，並提出申請。（曰本專利特開㈨9號 971292〇1 200920199 公報、日本專利第2933790號公報） 該等高精度薄膜印刷用之柔性版主要使用紫外線感光性樹 脂’於凸部印刷表面上藉由光成型而形成、配置有用以保持含 有上述配向膜用之聚醯亞胺樹脂之油墨的微細突起及溝部。並 且，配置於3亥表面之微細突起或溝部中，在印刷配向膜時產生 不均勻性之印刷塗膜周邊部為了修正該印刷膜之不均勻性，而 配置有修正該部分之塗佈性的特殊之突起部及溝部。（日本專 利第3376908號公報、日本專利特開平11-59〇〇4號公報)因此， 為了製作此種柔性印刷版，必須製作高精細且複雜、特殊之光 罩膜’對於光罩膜製作技術本身而言，當然亦必需特殊之製造 設備。 另外，由於該等柔性印刷版表面之微細之突城溝部係藉由 使用上述光罩膜之光成型而形成的，故光罩製作或柔性版製腺 時之污物歧㈣異齡㈣該突起或溝部之品質造成不良 G影響，因此不僅製造環境必需高潔淨度，並且亦難以對所製成 之印刷版進行性能檢查，製品良率低自不待言，而且由於生產 性之問題而存在成本高之問題。 另外，與普通之柔性印刷同樣，該配向膜印刷用柔性版係反 覆地用於製造液晶配向膜基板。因此，亦存在以下問題：為了 使設置於柔性印刷版表面的微細突起部或溝部分保持潔淨，必 須在印刷結束後清洗印刷版，此時難免對微細之突起部或溝部 分造成損傷或缺損，故容易妨礙形成無針孔、均句性優異且穩 97129201 ^ 200920199 定的薄膜。 另一方面，作為用於紙盒、紙袋或軟包裝膜等包裝材印刷領 域中之柔性印刷版之凸部表面形狀，日本專利特開測 號公報中揭示，作為可實現良好之印刷的印刷版，較理 實體圖像之表面平均粗度Ra控制在(Π〜〇.6 _之特；範圍 内、。但是，此種粗度之柔性印刷版無法高精度且無針孔地製造 如液晶配向膜印刷所要求般之均質薄膜。 〇 [專利文獻丨]日本專利特開H08-305030號公報 [專利文獻2]日本專利第3801592號公報 [專利文獻3]日本專利特開2002-293049號公報 [專利文獻4]日本專利第293379〇號公報 [專利文獻5]曰本專利第33769〇8號公報 [專利文獻6]曰本專利特開平n_59〇〇4號公報 [專利文獻7]曰本專利特開2〇〇3_43672號公報 1/ [專利文獻8]曰本專利特開昭52-90304號公報 [專利文獻9]日本專利特開平LUO737號公報 [專利文獻ίο]日本專利特開2〇〇〇_2〇6677說公報 [專利文獻11]曰本專利特開昭Μ··4號公報 [專利文獻12]曰本專利特開平8_3〇5〇3〇號公報 [專利文獻日本專利特開2_·3_6說公報 [專利文獻Μ]日本專利特開·6·34ΐ偏號 [專利文獻15]日本專利特開2〇〇3-〇25749銳公報 97129201 200920199 [專利文獻16]日本專利特開昭 59-54600號公報 [專利文獻ιη日本專利特開加㈣554…號公報 [專利文獻I8]日本專利特開如❻卜⑵833號公報 [專利文獻19]日本專利第2846954號公報 [專利文獻20]日本專利帛2846955號公報 【發明内容】 (發明所欲解決之問題） (' 口此，本發明之課題在於提供一種於無針孔、薄膜精度高且 要求/專膜之厚度精度之液晶配向膜用印刷版中，與習知之由微 細且複雜之突起部及溝部等所構成的凸部表面不同的高生產 性、同可#性優異且廉價之柔性印刷版及其製造方法，薄膜及 液晶顯示元件之製造方法。 (解決問題之手段） 本發明者等人就上述課題進行了銳意研究，結果達成了本發 〇 明。即，本發明如下所述。 ⑴-種柔性印刷版’其特徵在於，印刷面之表面平均粗度 Ra 為 1 〜5 # m。 ⑺如⑴所記載之柔性印刷版，其中，上述柔性印刷版係由 光硬化性樹脂所形成。 (3)如(2)所記載之柔性印刷版’其令，形成上述柔性印刷版 之光硬化性樹脂，係以預聚物、至少—種以上之具有乙烯性不 飽和基的單體、以及光聚合起始劑作為必需成分的感光性樹脂 97129201 7 200920199 組成物。 ⑷-種柔性印刷版之製造方法，其係製造⑺或⑺所記載之 本ί·生印刷版之方法，其特徵在於包括：於使光硬化性樹脂與具 有活性光線穿透性之經粗面化之模材表面相接觸的狀態下二 射活性光線而使之硬化的步驟。 (5)如W所記載之紐印刷版之製造方法，其包括將印刷所 不需要之部分進行機械切除、熱切除之步驟。 D .種薄膜之製造方法，其特徵在於：使用⑴至⑶中任— 項所記載之柔性印刷版來形成薄膜。 ⑺一種液晶顯示元件之製造方法，其特徵在於：使用⑴至 (3)中任-項所記載之柔性印刷版來製造液晶配向膜。 (發明效果） 根據本發明，無須如先前般特別在印刷版表面部形成複雜之 微細突起部或溝部等，因此可製成不僅印刷耐久性優異而且印 ，刷清洗性亦優異、且無黏性之印刷可靠性高之柔性印刷版。由 於印刷版表面簡單且均質化，故亦可廉價地製作印刷版。 【實施方式】 以下，對本發明進行具體說明。 本發明之柔性印刷，係將柔軟且f有彈性之凸部上積滿的油 墨單純地轉印之印刷方式，不僅油墨本身簡單，而且可對廣泛 之承印材料進行印刷而並非僅可對膜或紙印刷。 本务明中所用之柔性印刷版’可使用柔性印刷中廣泛採用之 97129201 200920199 印刷材料，好料、_抽雜销魏 彈性體村料。感光性樹腊材料由於可藉由活性光線昭射而於常 Γ2Γ硬化處理’故為特別合適之材料，熱硬化反 應之硫化_或聚魏橡膠、氣橡膠彈性體材料⑽感光性彈 性體材亦可用作本發明之材料。相較於硬化時需要高溫且長時 間的非感光性彈性體材料，可藉由活性光線進行硬化處理之减 光性樹脂具有不僅可獲得較高之生產性、 〜 f 而且作為印刷版之厚 度精度等亦較優異之優點。 對於本發明之柔性印概，其版表面之平均粗度必須為卜 5㈣。當印刷版之表面平均粗度處於該翻時，印刷版可實 現無針孔、均勻性優異^高精度之薄膜液晶配向膜印刷。此 時，版表錄度可藉由瓜表面粗雜_)之算術平均粗度即 Ra(以下，將中心線平均粗度稱為「Ra」）而求出，較佳為u 〜4 /zm，更佳為1.5〜3以爪。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexographic printing plate capable of forming an alignment film having a uniform film thickness on an electrode forming surface of a liquid crystal display element substrate, and a method of manufacturing the same, and a film and a liquid crystal I member The manufacturing method of the component. [Prior Art] Flexible printing plates are used in the packaging and packaging fields of corrugated cardboard, paper boxes, paper bags, flexible packaging films, etc., in the field of packaging materials, such as sealing strips, varnish coatings such as surface finishing, building materials, and electronic parts. Such as in the field of beauty or trademark printing, and other fields of printing applications. The main reason is that the flexographic printing plate is derived from a simple printing principle in which only the ink accumulated on the soft and elastic convex portion is simply transferred, as compared with the printing, gravure printing, etc., and the following Features: Not only the ink itself is relatively simple, but also a wide range of substrates can be printed and not just film or paper. As the flexographic printing plate, it is conventionally known to use a rubber plate typified by a gift plate or a enamel plate, or a photosensitive resin plate plated with Lisheng rays. In addition, in recent years, the electronic printing of printed materials in the production process of printed matter has been developed. Therefore, it has become common to use the flexible printing plate of laser light, such as the contact of the county, or the direct output to the material used as the printing plate. Production method. The plate-making method towel of the flexographic printing plate is used as a manufacturing example of the method of the fourth embodiment of the method of illuminating the light, and the ultraviolet-curable photosensitive resin is used after the silver salt film or the thermal sensation brush image mask film is temporarily prepared. A method of making a plate; and an example of a CTP (C〇mpUter T〇Plate abbreviation) version in which 97129201 〇200920199 is used as a thermal sensitizing layer of an image mask and a surface of the photosensitive resin. As a specific example of the latter, as disclosed in Japanese Laid-Open Patent Publication No. H08-305030, a photomask resin layer having a heat-sensitive property and being non-penetrating is formed in a thickness of several The surface of the photosensitive resin is cured and integrated with it to directly depict the laser light, thereby burning the printed image portion of the mask resin to form an image mask. As a result, since the ultraviolet ray-transparent printed image mask is integrally formed with the thermal laser sensing layer, by selectively irradiating the entire surface with ultraviolet rays, the printed image portion can be selectively selected in the same manner as conventional plate making. The hardened, unhardened portion is treated by a known method such as immersion or thermal development. On the other hand, as an example of a method of directly producing a flexographic printing plate, it has heretofore been known that a high-power laser such as a carbon monoxide laser is used to engrave a rubber plate, and a mine having improved resolution and improved productivity has been disclosed. The engraving 'plate making method' is based on a resin plate to directly burn off non-image portions to form undulating convex portions. (Japanese Patent No. 3801592) As an example of the characteristics of the flexible printing method in a special application other than the field of printing materials, there is an alignment film printing as a liquid crystal display device which requires high film quality performance. Version _ way. Flexible printing for manufacturing requires coating performance without pinholes, thin film and high thickness precision, so it is oriented. The company is working on a flexible printing plate that can be used for high-precision film printing. (Japanese Patent Laid-Open No. 9-97 971 292 〇 1 200920199, Japanese Patent No. 2933790) These flexographic plates for high-precision film printing are mainly formed by photo-forming on a convex printing surface using an ultraviolet photosensitive resin A fine protrusion and a groove for holding the ink of the polyimine resin for the alignment film described above are disposed. Further, in the fine protrusions or the groove portions of the surface of the 3H, the peripheral portion of the printing film which is uneven in the printing of the alignment film is arranged to correct the unevenness of the printing film, and the coating property of the portion is corrected. Special protrusions and grooves. (Japanese Patent No. 3376908, Japanese Patent Laid-Open No. Hei 11-59〇〇4) Therefore, in order to manufacture such a flexographic printing plate, it is necessary to produce a high-definition and complicated, special photomask film. In principle, of course, special manufacturing equipment is also required. In addition, since the fine gully groove portion of the surface of the flexible printing plate is formed by light molding using the above-mentioned photomask film, the dirt of the reticle or the flexographic gland is different (four) different age (four) the protrusion Or the quality of the ditch is adversely affected by G, so not only the manufacturing environment is required to have high cleanliness, but also it is difficult to perform performance check on the produced printing plate, the product yield is low, and there is a high cost due to productivity problems. The problem. Further, like the conventional flexible printing, the flexographic printing plate for alignment film printing is used to manufacture a liquid crystal alignment film substrate in reverse. Therefore, there is also a problem in that in order to keep the fine protrusions or groove portions provided on the surface of the flexographic printing plate clean, it is necessary to clean the printing plate after the end of printing, and it is inevitable that damage or defects may be caused to the fine protrusions or groove portions. Therefore, it is easy to hinder the formation of a film having no pinholes, excellent uniformity, and stability 97129201 ^ 200920199. On the other hand, as a surface shape of a convex portion of a flexographic printing plate used in the field of packaging material printing such as a carton, a paper bag, or a flexible packaging film, as disclosed in Japanese Laid-Open Patent Publication, as a printing plate which can achieve good printing, The surface average roughness Ra of the comparative entity image is controlled within the range of (Π~〇.6 _; within the range, however, the flexographic printing plate of such a thickness cannot be manufactured with high precision and without pinholes such as a liquid crystal alignment film. PCT Patent Publication No. JP-A-2002-293049 [Patent Document 3] Japanese Patent Laid-Open No. Hei. No. Hei. Japanese Patent Publication No. 293379A [Patent Document 5] Japanese Patent Publication No. 33769〇8 [Patent Document 6] Japanese Patent Laid-Open No. Hei No. 59 No. 4 (Patent Document 7) Japanese Patent Laid-Open No. Hei 52-90304 [Patent Document 9] Japanese Patent Laid-Open Publication No. Hei No. LUO737 No. [Patent Document ίο] Japanese Patent Laid-Open No. 2〇〇〇_2 〇6677, the communique [Patent Document 11]曰[Patent Document 12] Japanese Patent Laid-Open No. Hei 8_3〇5〇3〇 No. [Patent Document Japanese Patent Laid-Open No. 2_3_6 STATEMENT [Patent Document Μ] Japanese Patent Special Opening 6 · 59 [ 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 749 59 59 59 59 59 59 59 59 59 (4) Japanese Patent Publication No. 2846954 [Patent Document No. 2] Japanese Patent No. 2846955 (Invention) [Invention] The problem of the present invention is to provide a fine and complicated protrusion in a printing plate for a liquid crystal alignment film which has no pinhole, high film precision, and required thickness accuracy. A method for producing a film and a liquid crystal display device, and a method for producing a film and a method for producing the same, and a method for producing a film and a liquid crystal display device, which are excellent in high productivity, and which are excellent in productivity, and which are excellent in the same manner as the groove portion. people The present invention has been intensively studied, and as a result, the present invention has been achieved. The present invention is as follows: (1) A flexible printing plate characterized in that the surface roughness Ra of the printing surface is 1 to 5 #m. The flexographic printing plate according to the above aspect, wherein the flexographic printing plate is formed of a photocurable resin. (3) The flexographic printing plate according to (2), wherein the photocurable property of the flexographic printing plate is formed The resin is a composition of a photosensitive resin 97129201 7 200920199 which is a prepolymer, at least one or more kinds of monomers having an ethylenically unsaturated group, and a photopolymerization initiator. (4) A method for producing a flexible printing plate, which is the method for producing the printing plate according to (7) or (7), characterized in that it comprises: a photocurable resin and a rough surface having an active light transmittance The step of hardening the active light by the action of the surface of the molded material in contact with each other. (5) A method of producing a printing plate as described in W, comprising the step of mechanically cutting and thermally cutting a portion not required for printing. A method for producing a film, which comprises forming a film using the flexographic printing plate according to any one of (1) to (3). (7) A method of producing a liquid crystal display device, which comprises producing a liquid crystal alignment film using the flexographic printing plate according to any one of (1) to (3). (Effect of the Invention) According to the present invention, it is not necessary to form a complicated fine protrusion or groove portion on the surface of the printing plate as in the prior art, and therefore it is possible to obtain not only excellent printing durability but also excellent printing and brush cleaning properties, and no stickiness. A flexographic printing plate with high printing reliability. Since the surface of the printing plate is simple and uniform, it is also possible to produce a printing plate at low cost. [Embodiment] Hereinafter, the present invention will be specifically described. The flexible printing of the present invention is a printing method in which the ink which is filled on the soft and f-elastic convex portion is simply transferred, not only the ink itself is simple, but also a wide range of printing materials can be printed, and not only the film or Paper printing. The flexographic printing plate used in the present invention can be used in 97129201 200920199 printing materials widely used in flexible printing, and it is a good material. The photosensitive wax material is a particularly suitable material because it can be hardened by the active light ray. It is a suitable material for the heat hardening reaction _ or a polywei rubber or a gas rubber elastomer material (10) photosensitive elastic material. It can be used as a material of the present invention. Compared with a non-photosensitive elastomer material which requires high temperature and a long time during hardening, the light-reducing resin which can be hardened by active light has not only high productivity but also f f and thickness accuracy as a printing plate. The advantages are also superior. For the flexible print of the present invention, the average thickness of the surface of the plate must be 5 (4). When the average surface roughness of the printing plate is at this turn, the printing plate can be printed with a thin film liquid crystal alignment film which is excellent in pinhole-free and uniformity. In this case, the plate degree can be obtained by the arithmetic mean roughness of the surface of the melon _), that is, Ra (hereinafter, the average thickness of the center line is referred to as "Ra"), preferably u 〜4 /zm More preferably 1.5 to 3 with claws.
δ亥Ra可使用市售之粗度測定儀而求出。測定時，可藉由使 測定針接觸版表面，並掃描版表面而求出巾讀平均粗度ΔHai Ra can be obtained by using a commercially available roughness meter. In the measurement, the average thickness of the towel reading can be obtained by contacting the measuring needle with the surface of the plate and scanning the surface of the plate.
Ra’近來，亦可利用根據雷射光之反射而求出表面粗度之非接 觸方式之測定方法。 本發明中所言之柔性印刷版之版硬度可使用通常眾所周知 之橡膠硬度計而簡單地測定。例如可使用JISK6253之A型硬 度計（蕭氏A)或JiSK63〇1之彈簧式八型等硬度計進行測定， 可使用戎硬度為20度〜8〇度之柔性印刷版’較佳者可舉出4〇 97129201 200920199 度〜65度之柔性印刷版。 對於由感光性樹脂材料所得之印刷版之硬度，可藉由調整構 成印刷版之樹脂成分之組成而製成任意硬度之印刷版。例如， 如日本專利特開昭52-90304號公報、特開平8—220737號公報 .或特開2000_施677號公報所記載，當感光性材料為由預聚 物、乙埽性不飽和化合物以及光聚合起始劑等所構成之感光性 樹脂彈性體時’可藉由調整不飽和基在包含預聚物之該樹脂中 (]所占之違度’而容易地選擇目標印刷版硬度。 另外，日本專利特開昭55_48744號公報、特開平8_3〇5〇如 號公報或特開廳㈣贿6號公報等中，當感光性樹脂材料為 以笨乙稀·異戊二烯或丁二烯_笨乙_熱塑性彈性體等作為 骨架聚合物，並包含乙烯性不餘和化合物、光聚合起始劑的感 光性樹脂時，可藉由適當調整物理性分子内約束力較高之熱塑 性彈性體之分子結構、增塑劑或軟化劑之選擇、或者乙稀性不 G飽和化合物之不飽和基在該樹脂成分中所占之濃度等，而任意 調整印刷版之硬度。 〜 至於本發日狀紐印概職材料之耐化學性，較理想為不 易因印刷所使用之油墨或油墨清洗劑等成分而膨潤、厚度或硬 度等物性變化較小之材料。因此，構成上述樹脂材料^分中 作為主成分之預聚物或骨架聚合物之選擇較為重要，但其耐化 學性只要為無礙於實際應狀物性變化_，赌鱗別限 制。 97129201 200920199 另一方面，硫化橡膠之類的經由被稱為硫化之交聯步驟而且 有化學性分子内鍵的彈性體材料，亦係可用於本發明令刷 版材料。在橡膠材料之不溶解化即硬化步驟中利用加熱聚合之 硫化橡膠，儘管存在硬化溫度高、硬化所需之時間長等製造性 .或品質方面差於感光性樹脂之問題，但仍可實際應用。另外’ 作為可於低溫下硬化之非感絲雜崎料的料氧橡膠等 亦係可用作本發明之彈性體材料者。 v 作為本發明之印刷版表面之粗度製備方法，可則：將表面 預先經粗面化處理之塑膠、玻璃、陶器或金屬材料等之表面粗 度轉印'形成於印刷版製造時之表面的方法；或者使用研磨劑 而使作為印刷版之已加工成片狀之彈性體材料表面變得粗链 的通常眾所周知之粗面化加工技術。 於塑膠製之膜、片材或玻璃製作之上述模材料具有紫外線等 之活性光線穿透性之情況下，可藉由於該模材表面塗敷感光性 I 樹脂等光硬化性材料、或流入至模殼中而形成為片狀之後，自 模材表面側或/及其相反面側照射活性光線，而同時進行該樹 脂之硬化及表面粗面化’從而高效率地製造具有目標表面粗度 的本發明之柔性印刷版用片材。 於該等模材係陶器或金屬模材等之類的由活性光線不穿透 性之材料所形成之情況下，成為本發明之柔性印刷版之彈性體 材料係添加交聯劑、熱硬化劑等而預先製備組成物，並壓至模 殼等中或製成壓送液等而塗敷成片狀之後，藉由加熱而進行硫 97129201 11 200920199 化處理’或者利用石夕橡膠等之類的室溫硬化型之聚合機制，而 使用非感光性材料，上述方法亦係將本發明之印刷版表面之粗 度轉印、形成於版面上之有效方法。 另一方面，對於已形成為片材之彈性體材料的表面粗面化方 法’可採用藉由研磨石或使用研磨材之研磨帶等研磨表面之公 知之方法’作為粗面化方法。例如，若採用日本專利特開 2006-341468號公報或特開2〇〇3_〇25749號公報中所揭示之使 C5用磨石來研磨感光性樹脂材料之表面等方法，則可藉由選擇研 磨材之粗度、接觸時間、次數等間之組合而加工成任意之表面 粗度。 套版印刷用橡皮布、印刷輥或人造皮革等之表面精加工所使 用之Wide Belt Sander(商品名；名南製作所股份有限公司製 造）’可藉由組合並控制研磨帶之研磨材之種類或旋轉速度、 被研磨材料之傳送速度或研磨壓力等，而設置任意之表面粗 U 度。 作為可用於本發明之彈性體材料的經粗面化之模材的製作 方法，可利用：使用固定之研磨粒對該模材料之表面進行研磨 之粗面化處理、或使用較硬之金屬製刷等進行摩擦而加以粗面 化之方法、使用游離研磨粒之拋光加工或噴砂之類的喷射加工 法等公知之粗面化加工方法。 本發明之柔性印刷版構成體係由樹脂層、支持體層、以及視 需要之缓衝層所構成。作為支持體層，可利用套版印刷橡皮布 97129201 12 200920199 以具有50〜350 膠臈或金屬片材等。特別是 代表的_膜之範圍的厚度之聚碳酸賴或聚醋膜等為 並:臈’係尺寸穩定性及操作性優異之材料，可利用對 ，、之/、樹脂層相接觸之表面視需要進行電暈處理、 ^或者設置易接著層等、或者利用接著劑等加 = ΓRa' has recently been able to use a non-contact method for determining the surface roughness based on the reflection of laser light. The flexographic printing plate hardness as described in the present invention can be simply measured using a rubber hardness meter which is generally known. For example, it can be measured using a hardness tester such as a J-type hardness tester (Shore A) of JIS K6253 or a spring type eight type of JiSK 63〇1, and a flexographic printing plate having a tantalum hardness of 20 to 8 turns can be used. A flexographic printing version of 4〇97129201 200920199 degrees~65 degrees. The hardness of the printing plate obtained from the photosensitive resin material can be made into a printing plate of any hardness by adjusting the composition of the resin component constituting the printing plate. For example, as described in Japanese Laid-Open Patent Publication No. SHO-52-90304, No. Hei 8-220737, or JP-A-2000-277, the photosensitive material is a prepolymer or an ethylenically unsaturated compound. In the case of the photosensitive resin elastomer composed of a photopolymerization initiator or the like, the target printing plate hardness can be easily selected by adjusting the degree of inertia of the unsaturated group in the resin containing the prepolymer. In addition, in the Japanese Patent Laid-Open Publication No. 55-48744, the Japanese Patent Laid-Open Publication No. Hei. No. Hei. When a olefinic-thermoplastic elastomer or the like is used as a skeleton polymer and contains a photosensitive resin having a vinyl compound and a photopolymerization initiator, the thermoplastic elastomer having a high physical molecular binding force can be appropriately adjusted. The molecular structure of the body, the choice of the plasticizer or softener, or the concentration of the unsaturated group of the ethylidene-free G-saturated compound in the resin component, and the hardness of the printing plate can be arbitrarily adjusted. Shaped The chemical resistance is preferably a material which is less likely to be swollen by a component such as an ink or an ink cleaning agent used for printing, and has a small change in physical properties such as thickness and hardness. Therefore, a prepolymer which is a main component of the above resin material is formed. Or the choice of the backbone polymer is more important, but its chemical resistance is not limited to the actual change of the physical properties _, the gambling scale is not limited. 97129201 200920199 On the other hand, vulcanized rubber and the like through the crosslinking step called vulcanization Moreover, an elastomer material having a chemical intramolecular bond can also be used in the brush material of the present invention. The vulcanized rubber which is heated and polymerized is used in the insolubilization or hardening step of the rubber material, although there is a high hardening temperature and hardening required. It is a problem that the manufacturing time is long or the like, or the quality is inferior to that of the photosensitive resin, but it can be practically applied. In addition, the material oxygen rubber which can be used as a non-sensing wire which can be hardened at a low temperature can also be used as the present invention. The elastomer material is used as a method for preparing the thickness of the surface of the printing plate of the present invention, and the plastic material having the surface roughened in advance may be used. The surface roughness of a glass, ceramic or metal material is transferred to a method of forming a surface at the time of manufacture of a printing plate; or the surface of an elastomer material which has been processed into a sheet as a printing plate is thickened by using an abrasive. A well-known roughening processing technique. In the case where the above-mentioned molding material made of a plastic film, sheet or glass has an active light transmittance such as ultraviolet rays, the surface of the molding material can be coated with a photosensitive I resin. After the photocurable material or the inflow into the mold case is formed into a sheet shape, the active light is irradiated from the surface side or/and the opposite surface side of the mold material, and at the same time, the hardening of the resin and the surface roughening are performed. The sheet for a flexographic printing plate of the present invention having a target surface roughness is efficiently produced. In the case where the mold material is formed of a material that does not penetrate the active light, such as a ceramic or a metal mold material, The elastomer material of the flexographic printing plate of the present invention is prepared by previously adding a crosslinking agent, a heat curing agent, or the like, and pressing it into a mold case or the like, or forming a pressure-feeding liquid or the like to be applied into a sheet shape. By heating, sulfur 97129201 11 200920199 treatment is used or a room temperature curing type polymerization mechanism such as Shi Xi rubber or the like is used, and a non-photosensitive material is used, and the above method is also the thickness of the surface of the printing plate of the present invention. An effective method of transfer and formation on a plate. On the other hand, a method of roughening the surface of the elastomer material which has been formed into a sheet can be employed as a roughening method by a known method of grinding a surface by grinding a stone or a polishing tape using a polishing material. For example, a method of polishing the surface of the photosensitive resin material with a grindstone as disclosed in Japanese Laid-Open Patent Publication No. Hei. No. 2006-341468 or JP-A No. Hei. The thickness of the abrasive material, the contact time, the number of times, and the like are combined to form an arbitrary surface roughness. Wide Belt Sander (trade name; manufactured by Minami Manufacturing Co., Ltd.) used for surface finishing of blankets, printing rolls or artificial leather, etc., by combining and controlling the type of abrasive material of the polishing tape or The rotational speed, the conveying speed of the material to be polished, or the grinding pressure, etc., are set to any surface roughness. As a method for producing a roughened mold material which can be used in the elastomer material of the present invention, it is possible to use a fixed abrasive grain to grind the surface of the mold material, or to use a hard metal. A well-known roughening processing method such as a method of roughening by brushing or the like, a polishing process using free abrasive grains, or a spray processing method such as sand blasting. The flexographic printing plate constitution system of the present invention comprises a resin layer, a support layer, and optionally a buffer layer. As the support layer, a printing blanket 97129201 12 200920199 can be used to have a 50 to 350 plastic or metal sheet. In particular, a polycarbonate or a polyester film having a thickness in the range of the representative film is a material which is excellent in dimensional stability and workability, and can be used as a surface which is in contact with the resin layer. Need corona treatment, ^ or set easy to laminate, etc., or use adhesives, etc. plus = Γ
LL
J 對於緩衝層，只要硬度低於印刷起伏部樹脂材 成。 _㈣脂㈣並低密度化讀脂發泡體所構 本發:之印刷版表面之粗面化可在製作印刷圖像圖案之前 未椒雜體材料製 之!·月况下，存在如下問題：另外必需圖像光 罩，且必需在活性讀照射處理後將所遮蔽之_像部分 硬化樹脂除去彡步料，印概製造步驟㈣_ 方面，對於預先藉由活性光線之光硬化或熱反應等而進行魏 並被加工成印刷版用片狀或圓筒狀之彈性體材料等，亦可利用 如下公知技術：將成騎_圖像部之部分機械地雕刻除去、 或藉由熱雷射而加崎除，由此製作出讓卩麻（日本專利 特開讀·画3號公報、日本專利第Μ·4號、日本專利 第2846955號a報）。該等方法無需圖像光罩或硬化處理後之 非圖像部樹脂之顯影處理步驟等，可使製作步驟簡單化，由此 就製作時間或成本方面而言係有利之印刷版製造方法。 97129201 13 200920199 作為將上述彈性體材料之表面粗面化之方法，儘管亦可使用 研磨劑等機械地使印刷表面粗面化，但是，作為獲得本發明之 柔性印刷版之合適方法，更佳為，使硬化前之樹脂材料與、 ^之斯表面料，並賴由活性光叙光魏或熱反應而 使树脂材料硬化的模材粗面轉印法。即，該模材粗面轉印法， 係將硬化前之具有流動性之彈性體樹腊材料，以成為一定厚度 之方式塗敷於賦予目標表面粗面化之模材表: κϊ Π時達成本伽之印概表面粗面化、 與5周整作為印概之厚叙片材化的方法。 以下’贼賤誠絲難雜料 ::::::發明之附有支持體之表面粗面= 片材H 面粗面化彈性體 牛开，成有支持體11相接合地形成有·體層12、且進-夕成有經粗面化之彈性體表面13之構成體。J For the buffer layer, as long as the hardness is lower than that of the printed undulation. _ (four) fat (four) and low-density reading of the fat foam structure: the surface of the printing plate roughing can be made before the production of printed image patterns without peppers and materials! · Under the conditions of the month, there are the following problems: In addition, an image mask is required, and it is necessary to remove the masked image-hardened resin after the active read irradiation treatment, and to perform the photo-hardening or thermal reaction of the active light in advance, in terms of the step (4). The WE is processed into a sheet-like or cylindrical elastic material for printing plates, and the like can also be used. The following techniques can be used: mechanically engraving a part of the riding image portion or adding it by heat laser In the case of the shovel, the shovel (Japanese Patent Laid-Open No. 3, Japanese Patent No. 4, Japanese Patent No. 2846955) was produced. These methods do not require an image mask or a development processing step of the non-image portion resin after the hardening treatment, etc., and the production steps can be simplified, thereby making the printing plate manufacturing method advantageous in terms of production time or cost. 97129201 13 200920199 As a method of roughening the surface of the above-mentioned elastomer material, although it is also possible to mechanically roughen the printing surface using an abrasive or the like, it is more preferable as a suitable method for obtaining the flexographic printing plate of the present invention. A resin material rough surface transfer method in which a resin material before hardening and a surface material are hardened by a reactive light or a thermal reaction to harden a resin material. That is, the mold material rough transfer method is applied to the surface of the mold material which gives the target surface roughening to a certain thickness so as to have a fluidity of the elastomeric wax material before the hardening: κϊ 达成The surface of this gamma is roughened, and the 5-week method is used as a method of thickening the sheet. The following 'thief 贱 丝 silk difficult material:::::: the surface of the invention with the supporting body rough surface = sheet H surface roughening elastic bovine opening, forming a support body 11 joint formation of the body layer 12. In addition, the composition of the surface 13 of the elastomer having the roughened surface is formed.
明之表面經粗面化之柔性印 …本X 面粗面化彈性體片材之印刷所=係精由雷射將圖1之表 粗面化表面23之印刷起部分切除所得者。具有 成之凹陷層面24所形成。用雷射加以切除後所 圖3係表示本發明之一 布局的圖。於基底朗之關基底^之内侧面之 I於該平滑部31之_，有女裝間隔件之平滑部 粗面化部32，於該粗面化部32之周圍=吏f持體真空吸附之 勤201 °圍乂相接觸之配置方式而 200920199 叹置有真空及/或H冓部Μ，於該溝之多處設置有真空及/ 或氣々〇_孔34。另一片玻璃係大小與基底玻璃相同之覆蓋玻璃 4〇’圖4表示其内側面之布局。該玻璃係用以形成本發明之印 •刷版表面之粗面化部者，與安裝於基底玻璃上之間隔件部分相 對向之最外周部係設為平滑面41，且對其内側部分於整個面 上施加有粗面化部42。另外，於餘面化部分之_四角附 近，设置有樹脂注入及/或空氣排出孔43。 Γ 繼而’圖5表示本發明之表面粗面化彈性體片材之成型例的 剖面布局圖，圖6其表示平面布局圖。首先，將收納於安裝在 基底破璃30上之間隔件51之内側、且尺寸大於真空及/或氣 机溝33之接著處理完畢之轉片材n(以下稱為基底膜广以 使與樹脂相接著之側為上表面之方式放置，並加以真空固定。 然後’將厚度厚於間隔件且柔軟之海料52，以將上述樹脂 左人/空氣排出孔43包圍之方式貼附於該基底膜π上。繼而， G於其更内側’以將中央部開出2 m左右之開口之方式，設置 作為空氣排出孔之海綿帶52。接著，以使粗面化面為内側之 方式而重疊載置成為本發明之印刷版表面之覆蓋玻璃，於間隔 件之位置上使用失具等將兩片玻璃板之四周緊固，從而加以固 定。 然後’於兩片破碡之間隙中加壓注入液狀之感光性樹脂彈性 體材料此時’可於平坦狀態下注入樹脂，然*，若以使海綿 T開口部處於上方之方式豎立懸吊，並使用—處或兩處之位於 97129201 15 200920199 下部側之樹脂注入/空氣排出孔43注入樹脂，則可容易進行。 此時’上部側之樹脂注入/空氣排出孔43係用作空氣排出孔。 當由海綿帶包圍之—部分開口之内側部分已充滿樹脂時，停 2供給«’放置⑽錢行加熱，料直朗加熱之樹脂之 T度及所重合之玻叙厚度達到歡為止。當樹脂之鋪展變平 L後士圖5所不’自基底玻璃及/或覆蓋玻璃面照射紫外線 燈53等之活性光線，藉此，可獲得本發明之具有粗面化表面 (% 之片狀彈性體。 虽特疋之紫外線照射結束時，以使覆蓋玻璃位於下侧、基底 玻璃位於上侧之方式，將所得之片狀彈性體置於平坦處並取下 夾具。然後，解除基底臈之真空固定而切換成氣流，除去安震 有間隔件之基底玻璃。之後，將與覆蓋玻璃面一體化之本發明 =表面經粗面化之印刷版賴性體片材，連同基底膜一併自覆 蓋玻璃表面剝離。 〇 :此’藉由在樹脂彈性體硬化之時配置支持體材料，可 獲传附有支持體之具有粗面化表面的本發明之印刷版材料片 材以上，δ兒明了使用兩片活性光線穿透性破壤之示例作為本 务明之-例，但只要基底玻璃或覆蓋玻璃中之任一者為活性光 線穿透性材料’則另一者亦可為金屬或陶竟等活性光線不穿透 性材料。另夕卜本發明之與經粗面化之模材密著配置後硬化所 得的感光性樹脂彈性體材料之表面亦具有如下特徵：實現迄今 為止不曾有之黏著性低且乾燥之理想表面特性。 97129201 16 200920199 _作為使絲感光性樹脂等片材化而形成㈣版之合適之成 型法，糾周知有使用APR樹脂(商品名；旭化成化學(股)製 造)等之印刷版成型法。藉由對本發明使用該成型方法，可製 ^同4足作為印刷版之厚度精度與粗面化、且生產性亦優異 之彈性體片材。即，該方法中，於實施有特定之粗面化之下方 玻璃之上表面侧，將硬化前之感光性樹脂直接塗敷於粗面化玻 璃面上g時重口具有可與上述感光性樹脂相接著之處理面的 Γ基底膜，並使基賴真空固定於重疊在其㈣之上部玻璃面 ’、遏自上下側同時知射紫外線或者自下部面對整個面照 射紫外線。若利用該成型、曝光法之原理，則可容易地獲得表 面經粗面化的本發明之印刷用樹脂彈性體片材。 以此種方式而獲得之表面粗面化彈性體片材，藉由機械雕刻 或熱雷射雕刻等公知之方法而刻入特定之印刷圖案，藉此，可 製成㈣實職晶配向狀議高精度之賴印刷的本發明 I，之具有經粗面化之印刷面的柔性印刷版。 (實施例） 以下，舉出實施例對本發明加以更詳細之說明，但本發明並 不特別限疋於只％例。另外，實施例中之測定方法以及評價方 法如下所述。 ⑴表面粗錢❹雷射表面粗度計進行駭，求出算術平 均粗度Ra。 ，以最小單位為1/100 (2)間隔件及版厚係使用數位厚度計 97129201 17 200920199 mm而進行測定。 對附有支持體之版 (3)版硬度係使用蕭氏A型橡膠硬度計 之硬度進行測定。 (4) 歸賴穩定性，係使不織布中含有驗㈣基〜比 料酮），以使用該不織布擦拭版表面之方式而將NMp薄薄地 塗佈於該版表面後，比較直域察到收縮為止之時間。 (5) 黏性係糾減她健時絲度大錢械 f、⑹配向膜印難能簡係使歸晶配向膜印刷術型號： A45 ’ Nakan(股)製造）。使用網紋輕#4〇〇將配向膜清漆印刷於 附有ITO膜之破璃上’評價印刷塗膜之厚度及均句性、以及印 刷版之板玻璃上抬(分離穩定)性。另外，關於印刷結束後印刷 版面之清洗性’餘據清漆之脫落狀㈣評價清洗性是否良 好0 <發明例1> 〇 準備兩片厚度為19咖及12 mm，大小為橫81G釋縱67〇 mm之板玻璃。於厚度為19 之板玻璃上，於其内側5〇咖 之位置上设置5mm之溝，並且於該溝部框之對向角位置上設 置5 mm之真空/氣流孔’用#12G之研磨材對該溝部框之内侧 實糾砂加工崎其粗聽，形絲底_。於該玻璃之四 周’用雙面膠帶貼附2〇 mm寬之金屬性間隔件，以使總厚度 高度達到2.25 mm。另—方面，對於厚度為12mm之玻璃’於 四周留出25 mm寬’對其内側整個面用#22〇之研磨劑進行喷 97129201 18 200920199 石夕、此時，於距離各邊之端部約60 mm之四角處分別設置樹 脂注入/空氣排出孔，從而準備好覆蓋玻璃。 將厚度為188 //之基底膜BF_22C(商品名，旭化成化學(股) 衣逅)切出745 mmx610 mm之大小，並以使接著劑面位於上侧 之方式而置於基底玻璃之間隔件部内侧，將真空/氣流孔與真 空官線相連接並加以密著固定。然後，以位於距離該基底膜上 之四周端部約為25 mm、且將覆蓋玻璃之樹脂注入/空氣排出 〇 孔包圍在内部之位置的方式，於四周貼附約8 mm寬、約2.3 mm厚之海綿帶(商品名：Neor〇n方形帶，N〇bukawa(股)製造）。 此日守，内側之空氣排出孔附近之海綿帶，係於其中央附近空出 約20 mm左右而貼附。之後，於其上以使粗面化面與海綿侧 相接觸之方式重合覆蓋玻璃，用夾具將基底玻璃之間隔件部分 之周圍加以緊固，於已將基底膜真空固定之狀態下豎立懸吊， 以使海綿帶開口部位於上側。 〇 之後，對液狀感光性樹脂APR/K11(商品名，旭化成化學(股) 製造之柔性印刷用感光性樹脂）一面進行加熱，一面以約〇 2 MPa之壓力自厚度為12 mm之覆蓋玻璃下部之兩處樹脂注入 孔加以注入，結果約15分鐘時海綿内部充滿了樹脂液。接著， 為了使注入後之樹脂/玻璃冷卻、以及使厚度穩定，以豎立懸 吊之狀態放置一夜。 放置一夜後之所注入之樹脂液面儘管稍高出海綿開口部，但 自海綿框中溢出之樹脂之量微小。繼而，自覆蓋玻璃侧，使用 97129201 19 200920199 40 W之化學燈FL40SBL(商品名，東芝(股)製造），距離覆蓋玻 璃140 mm於室溫下對其整個面照射紫外線3〇分鐘。曝光結 束後，將基底膜固定用玻璃切換成氣流管線並取下基底玻璃。 將覆盍玻璃上之硬化樹脂連同基底膜一併剝離取下，結果獲得 表面經粗面化之厚度為2.25 mm之附有聚酯膜支持體之感光 性樹脂彈性體片材。該粗面化面之表面平均粗度Ra為2 4 " m， 用手指接觸片材表面時幾乎無黏著感，含有NMp(N_甲基_2_ (Ί 吡咯啶酮）液之不織布之塗佈性亦極為良好，塗佈後至開始收 縮為止之時間為60秒以上，可獲得穩定之濡濕性。 使用該具有經粗面化之表面的片材，用二氧化碳雷射燒刻出 配向膜印刷用圖案。二氧化碳雷射之處理係於4〇〇w之雙光束 下以光束直住為20微米、傳送間距為60微米、速度為14〇 cm/sec之條件而進行。之後，對由雷射描繪處理時之熔除飛沫 樹脂所污染之該片材表面，用KS_HG稀釋劑（商品名，太陽化 I 予(版)製造)加以清洗，並充分乾燥。其結果，獲得整體厚度為 2.28 mm、起伏高度約為〇 5mm的表面經粗面化之液晶配向膜 印刷版。 使用該版’對附有1丁〇膜之玻璃印刷液晶配向膜。使用液 晶配向膜印刷機（型號A45，Nakan(股)製造），利用網紋輥# 4〇〇、配向膜印刷用清漆AL60702(商品名，日本合成橡膠(股） 製4) ’對厚度為〇,7 mm之附有ITO膜之玻璃進行印刷，結果 獲知·預備乾燥後之塗膜厚度為〗，〗〇〇埃之無針孔之均勻塗膜 97129201 200920199 面。而且，即便於不供給配向膜印刷用清漆之狀態下進行印 刷，附有ITO膜之玻璃亦不會上抬，故可判斷版面之黏著性極 小。至於印刷結束後之版面清洗，即便使用含有之不織 布’亦可簡單容易地進行清洗。 <發明例2〜7> 準備二片覆蓋玻璃，該等覆蓋玻璃係使用發明例丨中所使用 之兩片板玻璃中的厚度為12 mm之覆蓋玻璃，並分別用研磨 〇 劑#80(發明例2)、#120(發明例3)、#180(發明例4)將粗面 化部加以粗面化所得。另外，對利用與發明例2、發明例3、 發明例4相同之材料實施有相同之粗面化處理的粗面化面，進 行藉由虱氟酸處理而加以半透明化的裝飾（tapestry)加工處 理，分別作為發明例5(發明例2之#80)、發明例6(發明例3 之#120)、發明例7(發明例4之#180)。除了使用該等覆蓋玻 璃以外，以與實施例1相同之材料、相同之方法、相同之順序 I 而獲得附有聚酯基底膜之感光性樹脂彈性體片材。其結果如表 1所示，任一片材之版面黏性均得到明顯改善，且於印刷評價 中，亦確認到與實施例1相同之均勻塗膜面以及良好之玻璃分 離性、NMP清洗性。 <比較例> 對利用# 220對發明例1中所使用之兩片板玻璃中的厚度為 12 mm之覆盍玻璃加以處理所得之粗面化面，進行藉由氫氟酸 處理而加以半透明化的裝飾加工處理，作為比較例〗之粗面化 97129201 21 200920199 玻璃使用錢蓋麵，以與實施例以同之材料、相同之方 法、相同之順序而獲得比較例i之感光性樹脂彈性體。該比較 例1之感光性樹脂彈性體之表面平均粗度Ra為q 9 _，手 •指接觸時之黏著感大，對附有IT〇膜之玻璃印刷液晶配向膜 時’預備乾燥後之塗膜厚度較薄，且亦存在若干厚度不均，無 法獲得令人滿意者。而且，於不供給配向騎刷清漆之狀態 下’基板玻璃顯著上抬，破璃分離性亦存在問題。另外，使用 Γ、利用與發明例i中所使用之厚度為12麵之覆蓋 材質、相同之方法，並將研磨材更換成#60進行喷射加工所 得的覆蓋玻璃，獲得比較例2之感光材彈性體。該比較例2之 感光材彈性體之平均粗度以為5.4㈣，印刷液晶配向膜時 完全未觀察誠璃上抬’但是塗膜厚度較厚且亦存在厚度不 均，無法獲得令人滿意者。 目前之印刷版表面由#400、30%網點所構成的比較例3之 。印刷版’手指接觸時之黏著感較大，NMP濡濕穩定性不佳。 對附有ITO膜之玻璃印刷液晶配向獏時，儘管均勻性、塗佈量 並無問題，但纽璃分雜存在問題。而且，印刷結束後清洗 版面時，清漆之脫落亦不良，要以不使微小網點產生缺損之方 . 式進行作業，故存在必須細心謹慎而較耗費時間之問題。 97129201 22 200920199 [表i]The printed surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface of the surface. It has a depression layer 24 formed. Fig. 3 is a view showing a layout of one of the present invention after being cut by laser. On the inner side of the base of the base, the I of the smoothing portion 31 has a smooth portion roughening portion 32 of the women's spacer, and around the roughening portion 32 = 吏f holding vacuum adsorption In the case of 201 ° cofferdam contact, 200920199 sighs with vacuum and / or H Μ Μ, vacuum and / or gas 々〇 hole 34 is provided in many places of the ditch. Another piece of glass is the same size as the base glass. 4 Figure 4 shows the layout of the inner side. The glass is used to form the roughening portion of the printing plate surface of the present invention, and the outermost peripheral portion of the spacer portion attached to the base glass is formed as a smooth surface 41, and the inner portion thereof is A roughened portion 42 is applied to the entire surface. Further, a resin injection and/or air discharge hole 43 is provided in the vicinity of the four corners of the remaining surface portion.继 Next, Fig. 5 shows a cross-sectional layout view of a molding example of the surface roughened elastic sheet of the present invention, and Fig. 6 shows a plan layout view. First, the transfer sheet n (hereinafter referred to as the base film) which is accommodated inside the spacer 51 attached to the base glass 30 and whose size is larger than the vacuum and/or the air gap 34 is widely used to make the resin The next side is placed on the upper surface and vacuum-fixed. Then, a seaweed 52 having a thickness thicker than the spacer is attached to the substrate so as to surround the resin left person/air discharge hole 43. The film is π. Then, G is provided on the inner side of the sponge belt 52 as an air discharge hole so that the center portion is opened by an opening of about 2 m. Then, the roughened surface is overlapped inside. The cover glass which is the surface of the printing plate of the present invention is placed, and the two glass plates are fastened at the position of the spacer by using a dislocation or the like to be fixed. Then, the pressure is injected into the gap between the two pieces. The liquid photosensitive resin elastomer material can be injected into the resin in a flat state at this time, and if it is erected in such a manner that the opening of the sponge T is above, and used at or at two places, 97129201 15 200920199 under The resin injection/air discharge hole 43 on the side is injected into the resin, which can be easily performed. At this time, the resin injection/air discharge hole 43 on the upper side serves as an air discharge hole. When the sponge is surrounded by the inner portion of the partial opening, When filled with resin, stop 2 supply «' Placement (10) money to heat, the T degree of the resin heated directly and the overlap of the thickness of the glass reaches the end of the joy. When the spread of the resin flattened L squatter Figure 5 does not 'from the base The glass and/or the cover glass surface is irradiated with the active light of the ultraviolet lamp 53 or the like, whereby the roughened surface (% of the sheet-like elastic body of the present invention) can be obtained. On the lower side, the base glass is placed on the upper side, and the obtained sheet-like elastic body is placed in a flat position and the jig is removed. Then, the vacuum of the base crucible is released and switched to a gas flow, and the base glass having the spacer is removed. Thereafter, the present invention, which is integrated with the cover glass surface, is subjected to roughening of the surface of the printed release sheet, together with the base film, and peeled off from the surface of the cover glass. When the elastomer is hardened, the support material is disposed, and the printing plate material sheet of the present invention having the roughened surface with the support is obtained, and the example of using two pieces of active light penetrating soil is used as an example. The present invention is exemplified, but as long as any of the base glass or the cover glass is an active light-transmitting material, the other may be a non-penetrating material such as metal or ceramic. The surface of the photosensitive resin elastomer material obtained by hardening the surface of the roughened mold material after the adhesion is also characterized in that it achieves the desired surface characteristics which are not so low and have a dry surface. 97129201 16 200920199 _ A suitable molding method for forming a (4) plate by a sheet of a photosensitive resin such as a silk is known, and a printing plate forming method using APR resin (trade name; manufactured by Asahi Kasei Chemicals Co., Ltd.) or the like is known. By using the molding method of the present invention, it is possible to produce an elastomer sheet having the same thickness precision and roughening as the printing plate and excellent productivity. In other words, in this method, when the photosensitive resin before curing is directly applied to the surface of the roughened glass g on the surface side of the lower glass which is subjected to specific roughening, the weight may be different from the above-mentioned photosensitive resin. The ruthenium base film of the treated surface is subsequently treated, and the base vacuum is fixed on the glass surface of the upper part of the (four), and the ultraviolet rays are irradiated from the upper and lower sides while the entire surface is irradiated from the lower surface. According to the principle of the molding and exposure method, the resin elastic sheet for printing of the present invention having a roughened surface can be easily obtained. The surface roughened elastomer sheet obtained in this manner is engraved into a specific printing pattern by a known method such as mechanical engraving or thermal laser engraving, whereby (4) a solid-state crystal alignment can be made. The present invention, which is based on precision, has a flexographic printing plate having a roughened printing surface. (Embodiment) Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not particularly limited to only the examples. Further, the measurement methods and evaluation methods in the examples are as follows. (1) The surface rough money ❹ laser surface roughness meter is 骇, and the arithmetic mean roughness Ra is obtained. The measurement is performed with a minimum unit of 1/100 (2) spacer and plate thickness using a digital thickness gauge 97129201 17 200920199 mm. The hardness of the plate with the support (3) was measured using the hardness of a Shore A rubber hardness tester. (4) Reliance stability, such that the non-woven fabric contains the test (tetra) base ~ ketone), and the NMp is thinly applied to the surface of the plate by using the non-woven cloth to wipe the surface of the plate, and the shrinkage is relatively straight. The time until then. (5) The viscous system corrects her healthtime silky machinery. f, (6) Alignment film printing is difficult to make the crystallization matching film model: A45 ‘Nakan (share) manufacturing). The alignment film varnish was printed on the glazed glass with the embossed light #4 ’, and the thickness and uniformity of the printing coating film and the plate glass lifting (separation stability) of the printing plate were evaluated. In addition, regarding the cleaning property of the printing plate after the completion of printing, the detachment of the varnish was evaluated (4) Whether the cleaning property was good or not. <Inventive Example 1> 两 Two sheets were prepared to have a thickness of 19 coffee and 12 mm, and the size was horizontal 81G. 〇mm plate glass. On a glass plate with a thickness of 19, a 5 mm groove is placed at the inner side of the slab, and a vacuum/air flow hole of 5 mm is placed at the opposite angular position of the groove frame. The inner side of the groove frame is solidified and the sand is processed. A metal spacer of 2 mm width was attached to the four weeks of the glass with double-sided tape so that the total thickness height reached 2.25 mm. On the other hand, for a glass with a thickness of 12 mm, leave a 25 mm wide circumference, and spray the entire surface of the inner surface with #22〇 abrasive. 97129201 18 200920199 Shi Xi, at this time, at the end of each side A resin injection/air discharge hole is provided at each of the four corners of 60 mm to prepare the cover glass. The base film BF_22C (trade name, Asahi Kasei Chemicals Co., Ltd.) having a thickness of 188 // was cut out to a size of 745 mm x 610 mm, and placed in the spacer portion of the base glass in such a manner that the adhesive surface was on the upper side. On the inside, the vacuum/flow hole is connected to the vacuum official line and fixed tightly. Then, about 8 mm wide and about 2.3 mm are attached around the periphery in such a manner that the peripheral end portion of the base film is about 25 mm and the resin injection/air discharge pupil covering the glass is surrounded by the inside. Thick sponge tape (trade name: Neor〇n square belt, manufactured by N〇bukawa). This day, the sponge belt near the inner air discharge hole is attached around the center of the sponge belt for about 20 mm. Thereafter, the cover glass is superposed on the roughened surface in contact with the sponge side, and the periphery of the spacer portion of the base glass is fastened by a jig, and the base film is erected in a vacuum state. So that the opening of the sponge tape is on the upper side. After that, the liquid photosensitive resin APR/K11 (trade name, photosensitive resin for flexible printing manufactured by Asahi Kasei Chemicals Co., Ltd.) is heated to a thickness of 12 mm from a cover glass of about 12 MPa. The lower two resin injection holes were injected, and as a result, the inside of the sponge was filled with the resin liquid in about 15 minutes. Next, in order to cool the resin/glass after the injection and to stabilize the thickness, it was left to stand overnight in a state of being suspended. The resin liquid surface injected after being left overnight was slightly higher than the opening of the sponge, but the amount of resin overflowing from the sponge frame was small. Then, from the cover glass side, a chemical lamp FL40SBL (trade name, manufactured by Toshiba Co., Ltd.) of 97129201 19 200920199 40 W was used, and the entire surface was irradiated with ultraviolet rays for 3 minutes at a room temperature of 140 mm from the cover glass. After the exposure is completed, the base film fixing glass is switched into a gas flow line and the base glass is removed. The hardened resin on the cover glass was peeled off together with the base film, and as a result, a photosensitive resin elastomer sheet having a surface of which the surface was roughened to have a thickness of 2.25 mm and a polyester film support was obtained. The rough surface of the roughened surface has an average roughness Ra of 2 4 " m, and has almost no stickiness when it is in contact with the surface of the sheet, and is coated with a non-woven fabric of NMp (N_methyl_2_(pyrrolidone)) liquid. The cloth property is also extremely good, and the time from the application to the start of shrinkage is 60 seconds or more, and stable wettability can be obtained. Using the sheet having the roughened surface, the alignment film is burned by carbon dioxide laser burning. The pattern is used. The treatment of carbon dioxide laser is carried out under a double beam of 4 〇〇w with a beam straightforward of 20 μm, a transmission pitch of 60 μm, and a speed of 14 〇cm/sec. The surface of the sheet contaminated with the spray-removing resin at the time of the treatment was washed with KS_HG thinner (trade name, manufactured by Sun Chemicals Co., Ltd.), and sufficiently dried. As a result, the overall thickness was 2.28 mm. The surface of the 粗5mm surface is roughened by a liquid crystal alignment film printing plate. This version is used for a glass-printed liquid crystal alignment film with a 1 〇 film. Using a liquid crystal alignment film printer (Model A45, Nakan) ))) using anilox roller # 4〇清, varnish for aligning film printing AL60702 (trade name, Japan Synthetic Rubber Co., Ltd. 4) 'Printing glass with ITO film with a thickness of 〇 and 7 mm, the results show that the thickness of the film after preliminary drying is 〗 〖, 〗 〖 〇〇 之 之 97 97 97 97 97 129 97 97 97 129 97 129 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 The adhesion of the layout is extremely small. As for the surface cleaning after the printing is finished, the cleaning can be easily and easily performed even if the non-woven fabric is used. <Invention Examples 2 to 7> Two sheets of cover glass are prepared, and the cover glass is used in the invention. The cover glass having a thickness of 12 mm in the two sheets of glass used in the crucible was coarsely ground with the grinding agent #80 (Invention Example 2), #120 (Invention Example 3), #180 (Invention Example 4), respectively. The surface of the surfaced portion was roughened, and the roughened surface having the same roughening treatment was applied to the same materials as those of Inventive Example 2, Inventive Example 3, and Inventive Example 4, and subjected to hydrofluoric acid treatment. Translucent decoration (tapestr y) Processing treatments are respectively Inventive Example 5 (#80 of Inventive Example 2), Inventive Example 6 (#120 of Inventive Example 3), and Inventive Example 7 (#180 of Inventive Example 4), respectively, except for using such cover glass. A photosensitive resin elastomer sheet having a polyester base film was obtained in the same manner as in Example 1, the same method, and the same procedure I. The results are shown in Table 1, and the surface of any sheet was sticky. The properties were all significantly improved, and in the printing evaluation, the same uniform coating film surface as in Example 1 and good glass separation property and NMP cleaning property were also confirmed. <Comparative Example> For the invention example 1 The roughened surface obtained by treating the cover glass with a thickness of 12 mm in the two sheets of glass used in the process, and performing a translucent decorative treatment by hydrofluoric acid treatment, as a comparative example Surfaceing 97129201 21 200920199 The glass was covered with a money, and the photosensitive resin elastomer of Comparative Example i was obtained in the same manner as in the examples, the same method, and the same procedure. The photosensitive resin elastomer of Comparative Example 1 has a surface average roughness Ra of q 9 _, and has a large adhesiveness when contacted by a hand or a finger, and is applied to a glass-printed liquid crystal alignment film with an IT film. The film thickness is thin, and there are also some thickness unevenness which cannot be obtained satisfactorily. Further, the substrate glass is remarkably lifted without supplying the aligning varnish, and the glass separation property is also problematic. Further, the cover glass obtained by the jet processing was replaced by the same method as the cover material having the thickness of 12 faces used in the invention example i, and the polishing material was replaced with #60 to obtain the elasticity of the photosensitive material of Comparative Example 2. body. The photosensitive material elastomer of Comparative Example 2 had an average thickness of 5.4 (4), and when the liquid crystal alignment film was printed, the glass was not observed at all, but the thickness of the coating film was thick and uneven thickness was also observed, which was not satisfactory. The current printing plate surface is composed of #400 and 30% dots in Comparative Example 3. The printing plate has a large adhesive feeling when the finger is in contact, and the NMP has poor wet stability. When the glass-printed liquid crystal with an ITO film is aligned, although there is no problem in uniformity and coating amount, there is a problem in the color of the glass. Further, when the layout is cleaned after the printing is finished, the varnish is not peeled off, and the operation is performed without causing a defect in the micro dot, so that it is necessary to be careful and time consuming. 97129201 22 200920199 [Table i]
具體例 粗面化 模材1) 印刷版表面特性 配向膜 印刷性4) 實用性 綜合評價 表面粗度 Ra NMP 2) 1 潘濕穩定性 黏性3) 發明例1 喷砂#220 2.4 >60 sec 極小 ◎ ◎ 發明例2 喷砂#80 4.8 >60 sec 極小 Δ Δ 發明例3 噴砂#120 4.0 >60 sec 極小 〇 〇 發明例4 噴砂#180 3.3 >60 sec 極小 ◎ ◎ 發明例5 裝飾#80 2.0 <10 sec 小 〇 〇 發明例6 裝飾#120 1.6 <5 sec 小 〇 〇 發明例7 裝飾#180 1.3 <5 sec 小 Δ Δ 比較例1 裝飾#220 0.9 <5 sec 中 X X 比較例2 喷砂#60 5.4 >60 sec 極小 X X 比較例3 #400 30%網點版 <10 sec 卜大 「〇 A 1)粗面化模材 · 發明例1〜7以及比較例1及2均為板玻璃。Specific Example Roughened Molding Material 1) Printing Plate Surface Characteristics Alignment Film Printing Property 4) Practicality Comprehensive Evaluation Surface Thickness Ra NMP 2) 1 Pan Wet Stability Viscosity 3) Inventive Example 1 Sandblasting #220 2.4 >60 Sec Very small ◎ Inventive Example 2 Sandblasting #80 4.8 > 60 sec Very small Δ Δ Inventive Example 3 Sandblasting #120 4.0 > 60 sec Very small 〇〇 Inventive Example 4 Sandblasting #180 3.3 > 60 sec Very small ◎ ◎ Inventive Example 5 Decoration #80 2.0 <10 sec Otaru Inventive Example 6 Decoration #120 1.6 <5 sec Otaru Inventive Example 7 Decoration #180 1.3 <5 sec Small Δ Δ Comparative Example 1 Decoration #220 0.9 <5 sec Medium XX Comparative Example 2 Sandblasting #60 5.4 > 60 sec Very small XX Comparative Example 3 #400 30% dot version <10 sec 卜大 "〇A 1) roughened molding material · Inventive Examples 1 to 7 and Comparative Example Both 1 and 2 are plate glass.
• 比較例3係印刷版表面設置有400線/叶、30%網點之感光性樹脂 製印刷版，係習知技術之液晶配向膜印刷版。 〜 2) NMP濡濕穩定性對表面塗上NMP之後’直至在塗膜面上觀察到收縮為止之時 間。時間越長越理想。 3) 黏性 手指接觸時之黏著感之感官評價。 4) 配向膜印刷性 使用液晶配向膜印刷機(型號：A45，Nakan(股)製造）。使用網紋 輥#400，將配向膜清漆印刷於附有ITO膜之玻璃上，評價印刷 塗膜之厚度均勻性、印刷版之板玻璃上抬(玻璃分離穩定)性。另 外，對於印刷結束後印刷版面之清洗性，係根據清漆之脫落狀況 而評價其是否良好。 <評價等級說明> 優：◎>〇>△(實用下限)>χ(無法實用）：劣 (產業上之可利用性） 如上所述’本發明可形成能夠減小材料本身之黏性且ΝΜΡ濡濕 穩定性亦優異、由於不具有複雜之微小網點故印刷清洗性優異、 並且对久性優異的高可靠性之薄膜印刷用之液晶配向膜印刷版。 由於無須形成如先前之複雜微細之網點，因此不僅可提高液晶配 向膜印刷版等薄膜印刷之可靠性、穩定性、生產性，而且其製版 製程可簡單化’從而亦可廉·製作印刷版。 【圖式簡單說明】 97129201 23 200920199 ^係麵本㈣之表面粗面化彈性_材之構成體剖面的圖。 ’、表示本舍a月之表面粗面化柔性印刷版之構成體剖面的圖。 圖3係表示基底玻璃之内面布局的圖。 圖4係表示覆蓋玻璃之内面布局的圖。 圖5係本發明之成型例，表示其剖面圖。 圖6係本發明之成型例，表示其俯視圖。 【主要元件符號說明】 10 表面粗面化彈性體片材 11 支持體層（基底膜） 12 彈性體層 13 經粗面化之彈性體層表面 20 表面粗面化柔性印刷版 21 支持體層（基底膜） 22 印刷起伏部 23 經粗面化之版面 24 凹陷層面 30 基底玻璃 31 平滑部（間隔件安裝部） 32 粗面化部 33 真空及/或氣流溝部 34 真空及/或氣流孔 40 覆蓋玻璃 97129201 24 200920199 41 平滑部（間隔件支承部） 42 粗面化部 43 樹脂注入及/或空氣排出孔 51 間隔件 _ 52 海錦帶 53 曝光燈 97129201 25• Comparative Example 3 is a photosensitive resin printing plate having 400 lines/leaf and 30% dot on the surface of the printing plate, which is a liquid crystal alignment film printing plate of the prior art. ~ 2) NMP wetting stability After the surface was coated with NMP ' until the shrinkage was observed on the coated surface. The longer the time, the better. 3) Viscosity Sensory evaluation of the adhesive feeling when the finger is in contact. 4) Alignment film printability A liquid crystal alignment film printer (Model: A45, manufactured by Nakan Co., Ltd.) was used. The alignment film varnish was printed on the glass to which the ITO film was attached using an anilox roll #400, and the thickness uniformity of the printing coating film was evaluated, and the plate glass of the printing plate was lifted up (glass separation stability). Further, the cleanability of the printing plate after the end of printing was evaluated as being good according to the peeling state of the varnish. <Explanation level description> Excellent: ◎ > 〇 > △ (practical lower limit) > χ (not practical): inferior (industrial availability) As described above, the present invention can be formed to be able to reduce the material itself A liquid crystal alignment film printing plate for film printing which is excellent in viscosity and wet stability, and which is excellent in print cleaning property and has excellent durability and long-lasting properties. Since it is not necessary to form a complicated fine dot as in the prior art, the reliability, stability, and productivity of film printing such as a liquid crystal alignment film printing plate can be improved, and the plate making process can be simplified, and the printing plate can be produced inexpensively. [Simple description of the drawing] 97129201 23 200920199 ^The surface of the surface of the surface (4) is a diagram of the cross-section of the elastic body_material. ', a diagram showing a cross-section of a structure of a surface roughened flexographic printing plate of the present month. Fig. 3 is a view showing the layout of the inner surface of the base glass. Fig. 4 is a view showing the layout of the inner surface of the cover glass. Fig. 5 is a cross-sectional view showing a molding example of the present invention. Fig. 6 is a plan view showing a molding example of the present invention. [Description of main component symbols] 10 Surface roughening elastomer sheet 11 Support layer (base film) 12 Elastomer layer 13 Surface layer of roughened elastomer layer 20 Surface roughening flexographic printing plate 21 Support layer (base film) 22 Printed undulations 23 roughened slab 24 recessed layer 30 base glass 31 smoothed portion (spacer mounting portion) 32 roughened portion 33 vacuum and/or air flow groove portion 34 vacuum and/or air flow hole 40 cover glass 97129201 24 200920199 41 smoothing part (spacer supporting part) 42 roughening part 43 resin injection and/or air discharge hole 51 spacer _ 52 sea brocade 53 exposure lamp 97129201 25