玖、發明說明 【發明所屬之技術領域】 本♦明係有關於運用凹版塗佈（Gravure C〇aHng)製 作油性喷墨的受像層（lmage Receptive c〇ating)之方法， 特別是有關於結合凹版印刷的技術與受像層之配方，藉以 加快塗佈製程的速度，提高印刷品質，並降低製程成本， 且其應用不限於本領域。 【先前技術】 喷墨印表機開發至今，已在市場上佔有舉足輕重的 地位，這得益於在生產技術上日益提昇，同時市場價位 亦相對低廉。在實際應用中’喷墨印表機的技術優勢主 要表現在相對較快的列印速度、接近照片質量的彩色列 印和清晰的文件列印，而這些則足以滿足家用和商用等 對列印精細度與速度要求不兩的需要。同時，價位上的 優勢，也足以彌補它相比於雷射印表機在技術方面的距 離。此外，在列印底材的選擇上，喷墨印表機也具有相 當靈活的處理能力，既可以列印信封、信紙等普通底材， 又可以列印各種膠片、照片紙、卷紙、T恤轉印紙等特 殊底材。由於喷墨印表機在以上方面的優勢，在點矩陣 (Dot-Matrix)、喷墨（Inkjet)和雷射（Laser)三種印表機 中，喷墨印表機無疑是家庭用戶的最佳選擇。 喷墨印表機依據需求不同，可選擇使用油性墨水或 水性墨水來進行列印。墨水在吸附一般紙張之後容易暈 開，因此需要藉由塗佈一層受像層在底材表面，使列印 效果更好。如果紙張表面能夠將墨水顆粒分佈均勻，色 彩能夠飽和，色相就好。習知技術在底材表面塗佈受像 層，可以達到紙張表面平整、多孔、抓力足夠及色彩鮮 豔明亮之效果，也因此各種底材材質均能使用喷墨印表 機加以輸出。 在喷墨列印時有兩項主要的要求。首先，受像層本 身必須能充份吸收墨水，使墨水固定於受像層表面而不 會暈開。其次，當墨水滴在受像層上時，受像層也使墨 水中的染料或顏料保持在受像層表面而不易擴散、拖尾 或模糊不清。 %知技術係利用有機溶劑使受像層配方溶解成溶液 後、利用刮刀式塗佈、線棒式塗佈、或逆轉差速塗佈的 方式，依據所需之厚度，均勻塗佈於底材上，以利吸收 噴墨印刷裝置之油墨，而形成各種預設之圖案文字。 利用習知技術形成預定厚度之受像層於底材上之方 法如下：首先，利用有機溶劑將受像層之固成份溶解成 預疋比例之受像層溶液；接著，塗佈受像層溶液於底材 上，包括利用刮刀式塗佈、線棒式塗佈、或逆轉差速塗 佈的方式，使觉像層溶液以第一厚度形成於底材上，其 中第一厚度為預厚度除以預定比例；然後，乾燥去除 受像層溶液中的有機溶劑藉以形成預定厚度之受像層。 舉例而言，如欲形成厚度為20微米（Micrometer; A m)之乂像層，可利用有機溶劑將固成份溶解成% 至24%之間之受像層溶液；接著，塗佈受像層溶液於底 材上，係利用刮刀式塗佈、線棒式塗佈、或逆轉差速塗 佈的方式，使文像層溶液以“以瓜至之厚度形成 592841 於底材上；然後，利用乾燥去除受像層溶液中的有機溶 劑以形成20 # m之受像層。 如上述習知技術所形成之受像層，由於一開始必須塗 佈較厚的受像層溶液於底材上，其中所含的有機溶劑對底 材的傷害較大。偏若將塗佈的厚度降低，雖可縮短乾燥時 間’加快製程速度，然而以習知技術塗佈受像層溶液在厚 度上會有機械誤差，在厚度越薄時，厚度不均的情況會加 遽，因此以習知技術所形成之受像層，其厚度限於m 以上’較佳之厚度要在丨5 V m至20 /z m之間，才能有效 將色彩定格，使墨水不會暈開。另一方面，塗佈的受像層 溶液較厚，容易有氣泡產生，因此不能以高溫烘烤乾燥， 如欲加速製程，則必需增加乾燥能源，成本變高。綜而言 之，受限於上述因素，以習知技術形成之受像層的製程速 度較慢’其製程速度一分鐘約為8米至14米之間。 由於在列印圖文時，列印製程速度、品質及成本考量 疋非常重要的，因此有必要提供更佳的受像層及其製作方 法。 【發明内容】 因此本發明的目的就是在提供一種運用凹版塗佈製 作油性喷墨的受像層之方法，係利用凹版印刷之技術，製 作出油性噴墨的受像層於底材之表面上，不僅可製作厚度 η於2/zm至5/zm之間之受像層，更用以降低製程成本， 並提高製程速度。本發明改善習知技術之受像層較厚，因 而製程成本及製程速度較慢的問題。 本發明的另一目的是在提供一種運用凹版塗佈製作 7 592841 油性喷墨的受像層，其中此受像層之材質至少由壓克力系 樹脂（Acrylic Resin)、聚氣乙烯（Polyvinyl Chloride; PVC)_ 聚乙烯醇（Polyvinyl Alcohol; PVA)共聚物（Cop〇lymer)、 以及醋酸丁酸纖維素（Cellulose Acetate Butyrate ; CAB) 所組成。本發明之受像層可將底材作定格規劃，將色彩有 效定格，使墨水完全被底材吸收而不會暈開，因此顯像效 果較佳。 根據本發明之上述目的’提出一種運用凹版塗佈製作 油性喷墨的受像層之方法，用以形成預定厚度之受像層於 底材上，此方法至少包含：利用有機溶劑將受像層之固成 份混合物溶解成預定比例之受像層溶液；塗佈受像層溶液 於底材上’包括將受像層溶液均勻沾黏於凹版滾筒上之複 數個凹孔中，再將這些凹孔中之受像層溶液均勻轉移於底 材上，使受像層溶液以第一厚度形成於底材上；以及乾燥 去除受像層溶液中的有機溶劑，藉以形成預定厚度之受像 層。 依照本發明一較佳實施例，其中上述之固成份混合物 至少包含壓克力系樹脂、聚氣乙烯-聚乙烯醇共聚物、以 及醋酸丁酸纖維素。 依照本發明一較佳實施例，其中上述之受像層的厚度 介於2/zm至5/zm之間。 依照本發明一較佳實施例，其中上述之底材的材質係 至少包含有軟質聚氣乙烯。 根據本發明之目的，提出一種運用凹版塗佈製作油 性噴墨的受像層，其中受像層之材質至少包含：壓克力 8 以及醋酸丁酸纖維 系樹脂、聚氣乙烯_聚乙烯醇共聚物、 素0 =發明—較佳實施例，其中上述之底材的材質係 至夕包含有軟質聚氣乙烯。 根據本發明之另一目的，提出一種凹版塗佈用之受像 二〔用於油⑨噴墨之印刷製程中，其特徵在於受像層之 材質由壓克力系樹脂、聚氯乙烯_聚乙稀醇共聚物、以及 醋酸丁酸纖維素所組成。 依照本發明—較佳實施例’其中上述之底材的材質係 至少包含有軟質聚氣乙烯。 、本發明的優點之一就是在提供一種運用凹版塗佈製 作油1±噴墨的觉像層之方法，係利用凹版印刷之技術，製 作出油性喷墨的受像層於底材之表面上，不僅可製作厚度 較薄且均句之受像層’更用以降低製程成本，並提高製程 速度，極具經濟效益。 本發月的另優點就是在提供一種運用凹版塗佈製 作油性喷墨的欠像層，其中此受像層可將底材作定格規 劃，將色彩有效定袼，使墨水完全被底材吸收而不會暈 開，因此顯像效果較佳。 【實施方式】 請參照第1圖，其繪示依照本發明一較佳實施例的 一種運用凹版塗佈製作油性喷墨的受像層之製程簡圖。 要形成預定厚度之受像層，首先，利用有機溶劑將受像 層之固成份混合物溶解成預定比例之受像層溶液1，其 中固成份混合物至少包括壓克力系樹脂、聚氣乙烯_聚乙 烯醇共聚物、以及醋酸丁酸纖維素；接著，塗佈受像層 溶液1於底材2上，包括將受像層溶液均勻塗佈於凹版 滾筒3上，其中凹版滾筒3具有複數個具有第一深度之 凹孔（未繪示），先利用鋼刀（Doctor)4將凹版滾筒3表面 之多餘的受像層溶液1刮淨，使這些凹孔内留有第一深 度之受像層溶液1，再將欲塗佈之底材2利用滾筒5緊 壓凹版滾筒3，凹版滾筒3以箭頭6之方向轉動，而滾 筒5以箭頭7之方向轉動，以便使凹版滾筒3上之受像 層溶液1均勻轉移到底材2上，此時受像層溶液1以第 一厚度形成於底材2之表面上，其中第一厚度為預定厚 度除以預定比例，即為第一深度；然後，利用乾燥例如 加熱裝置8，去除受像層溶液丨中的有機溶劑，藉以形 成具有預定厚度受像層之底材9。 舉例而言，如欲形成厚度為2/ίΖ 党像層，可利 用有機溶劑將固成份混合物溶解成16·5%之受像層溶 液；接著，塗佈受像層溶液於底材上，包括將受像^溶 液均勻沾黏於凹版滾筒上之複數個凹孔中，其中這些凹 孔具有13/zm之深度，先利用鋼刀將凹版滾筒表面之多 餘的受像層溶液刮淨，使這些凹孔内殘留有深纟Up 之受像層溶液，再將欲塗佈之底材緊壓凹版滾筒，以便 使這些凹孔内殘留之受像層溶液均句轉移到底材上，使 雙像層溶液以13以m之厚产渺杰私广从 ;旱度形成於底材上；然後，利用 乾燥去除受像層溶液中的右 像層。 T的有機溶劑，以形成之受 本發明上述塗佈受像層 溶液之方式，為一次塗佈達 592841 到所需受像層厚度，但為避免大量或高速生產時容易因 操作上的疏失而造成瑕疵，以致受像層效果不良，因此 本發明更可採用連續二次塗佈受像層溶液，作交錯覆 蓋’則受像層會更均勻。請參照第2圖，為繪示依照本 發明另一較佳實施例的一種運用凹版塗佈製作油性喷墨 的受像層之製程簡圖。要形成預定厚度之受像層，首先， 利用有機溶劑將受像層之固成份混合物溶解成預定比例 之受像層溶液101與受像層溶液m，其中固成份混合 物至少包括壓克力系樹脂、聚氣乙烯_聚乙烯醇共聚物、 以及醋酸丁酸纖維素；接著，進行第一次塗佈受像層溶 液101於底材102上，包括將受像層溶液均勻塗佈於凹 版滾筒103上，其中凹版滾筒1〇3具有複數個具有第二 深度之凹孔（未繪示），先利用鋼刀1〇4將凹版滾筒1〇3 表面之多餘的觉像層溶液1 0 1刮淨，使這些凹孔内留有 第一深度之受像層溶液10 1 ,再將欲塗佈之底材i 〇2利 用滾筒105緊壓凹版滾筒1〇3,凹版滾筒1〇3以箭頭1〇6 之方向轉動，而滾筒105以箭頭1〇7之方向轉動，以便 使凹版滾冑1〇3上之受像層溶液1〇"句句轉移到底材 上，此時受像層溶液1〇1以第二厚度形成於底材ι〇2 之表面上’其中第二厚度為預定厚度除以預定比例所得 刀之，即為第二深度；然後，利用乾燥例如加熱 裴置108,去除受像層溶液1〇1中的有機溶劑，藉以： 成具有二分之一預定厚度受像層之底材109;隨後，底 =109經由複數個轉車由11〇的輸送，再進行第二次塗佈 又像層/合液111於底材109上，包括將受像層溶液均勻 592841 塗佈於凹版滾筒113上，其中凹版滾筒113具有複數個 具有第二深度之凹孔（未繪示），先利用鋼刀丨14將凹版 滾筒113表面之多餘的受像層溶液丨丨丨刮淨，使這些凹 孔内留有第二深度之受像層溶液m，再將欲塗佈之底 材109利用滾筒ι15緊壓凹版滾筒113，凹版滾筒113 以箭頭116之方向轉動，而滾筒115以箭頭117之方向 轉動，以便使凹版滾筒i 13上之受像層溶液丨丨丨均勻轉 移到底材109上，此時受像層溶液i丨丨亦以第二厚度形 成於底材109之表面上，其中第二厚度為預定厚度除以 預疋比例所得之二分之一，即為第二深度；然後，利用 乾燥例如加熱裝置118,去除受像層溶液1U中的有機 溶劑’藉以形成具有預定厚度受像層之底材丨丨9。 當應用本發明進行連續二次塗佈受像層溶液之方式 時’每次所塗佈之受像層溶液以7以m之厚度形成於底 材上’不僅加速乾燥步驟，塗佈速度更可加快，因此可 縮短受像層溶液中之有機溶劑停留在基材上的時間，相 對地也減少有機溶劑損傷基材。 根據本發明之運用凹版塗佈製作油性喷墨的受像層 之方法，其特徵在於利用凹版印刷之技術，製作出油性 噴墨的受像層於底材上，不僅所形成之受像層較薄，而 且凹版印刷的滾筒上的凹孔深度精準，因此所形成之受 像層厚度較精準，且塗佈也更均勻。 根據本發明之運用凹版塗佈製作油性喷墨的受像層 之方法’其中塗佈受像層溶液於底材上之步驟中，更可 利用滾筒重複兩次塗佈受像層溶液於底材上，使受像層 12 ^谷液塗佈得更均勻。 之方η!明之運用凹版塗佈製作油性喷墨的受像層 方法’所使用之受像層溶㈣少，有機㈣η料 低，不僅降低製程成本， 徒间製程逮度，同時因為乾燥 時間縮短，所以可使用揮發 短乾燥時間。 較強的有機μ ’以更縮 根據本發明之運用凹版塗佈製作油性噴墨的受像層 '、中$用乾燥去除$像層溶液中的有機溶劑之 '驟中’乾燥受像層溶液所需之風量、溫度及時間，係 視張力及所採用底材之材質而定，此為熟悉此技術之人 員所瞭解的，故不再贅述。 除此之外，本發明更揭露一種運用凹版塗佈製作油 ，喷墨的受像層’其中此受像層係形成於底材上，而此 又像層之材質至少由壓克力系樹脂、聚氯乙烯聚乙烯醇 共聚物、以及醋酸丁酸纖維素所組成。利用醋類（Esters) 作為有機溶劑，例如乙酸正丙酯（n_Propyl Acetate; NPAC) ’將壓克力系樹脂、聚氣乙烯-聚乙烯醇共聚物、 以及醋酸丁酸纖維素溶解成受像層溶液，再依據所需之 厗度，均勻塗佈於底材上，以利吸收喷墨印刷裝置之油 墨，而形成各種預設之圖案文字。 根據本發明以上所述之運用凹版塗佈製作油性喷墨 的受像層，其中所使用之底材之材質至少含有軟質聚氯 乙烯。请參考第3圖’其所繪示為依據本發明之一較佳 實施例之觉像層與底材之剖面圖。舉例而言，底材1 〇 之材質例如為紙類、聚氣乙烯軟質膠布或聚氣乙烯夾網 13 布時，此受像層12之材質可给 上。請參考第4圖，苴所洽密著於底材10 圖纟料示為依據本發明之另K去 實施例之受像層、接合#盥 另較佳 带。層與底材之剖面圖。若 之材質例如為聚酯（Pol - 人《 . bl)之材質，則可利用接 口曰14使受像層12之材質貼合於底材1G上。另外，若 此底材U)本身吸收油墨不佳，例如聚丙烯 (P〇lyPr°Pylene ; ΡΡ)海報紙，則聚丙烯海報紙在經過打 底等前處理後’軟質聚氣乙料藉由聚氣乙稀顆粒溶解 成固體溶液，均句塗佈於底材上形成軟質聚氣乙烤，有 助於吸收油墨中之溶劑成份。因此本發明之受像層Η 係依據底材10之材質之不同，當可直接塗佈或藉由接合 層14貼合於底材1〇上。 根據本發明以上所述之運用凹版塗佈製作油性喷墨 的受像層，其中所使用之壓克力系樹脂為顆粒狀，聚氯 乙烯-聚乙烯醇共聚物為粉狀，係包含約i丨％之聚乙烯 醇，而醋酸丁酸纖維素為粉狀。上述之聚氣乙烯-聚乙稀 醇共聚物與醋酸丁酸纖維素係有助於受像層之材質較耐 有機溶劑。本發明之受像層之材質，更可包含聚胺醋 (Polyurethane ; PU)，其中聚胺酯為液體狀。 以下係利用本發明之較佳實施例說明運用凹版塗佈 製作油性喷墨的受像層的配方。 舉例而言，如欲形成厚度為2/zm之受像層，首先， 將重量百分比介於45%至60%之間之壓克力系樹脂、重 量百分比介於30%至45%之間之聚氣乙烯-聚乙烯醇共 聚物、重量百分比介於0%至10%之聚胺酯、以及重量百 592841 分比6%至2 1 %之問夕紐私 ^ _ π y '曰S文丁酸纖維素，利用酯類作為有 機溶劑，例如乙酸正丙酽，、—紐a ^ 心解成預定比例之受像層溶 液，其中預定比例係例如 槌並么从 16.5/。，但本發明不限於此； .u ^ 、底材上，包括將受像層溶液均 勻沾黏於凹版塗佈之滚锊 缚上’再將沾黏受像層溶液之滾 疴均勻塗佈於底材上六 、 更又像層溶液以13 /z m之厚度形 成於底材上，然後，利用許 ☆ J用乾知去除文像層溶液中的有機 溶劑；以及形成2/zm之受像層。 如上述之塗佈受像層溶液於底材之步驟中’更可採 用連續二次塗佈受像層溶液，作交錯覆蓋，則受像層會 更句句田應用本發明進行連續二次塗佈受像層溶液之 方式時’每次所塗佈之受像層溶液以7心之厚度形成 於底材上；然後’亦利用乾燥去除受像層溶液中的有機 溶劑，以形成2 // m之受像層。 然而，本發明之受像層配方並不限定於上述比例， 例如壓克力系樹脂之重量百分比可介於45%至6〇%之 間，聚氣乙烯-聚乙烯醇共聚物之重量百分比可介於3〇% 至45%之間，聚胺酯之重量百分比係介於〇%至1〇%之 間，以及醋酸丁酸纖維素之重量百分比係介於6%至21% 之間。 根據以上所述，本發明之運用凹版塗佈製作油性喷 墨的受像層，其特徵在於受像層之組成中含有醋酸丁酸 纖維素，不僅所形成之受像層之光澤與習知之受像層一 樣，其中之醋酸丁酸纖維素更有助於受像層之材質耐受 有機溶劑，同時戶外耐候性佳，不產生黃變。 15 592841 其次，與習知之受像層相較，本發 月所开/成之受像 層之厚度依據所需，可形成2/zm至M & 之厚度。由於 所形成之受像層的厚度較薄，是以，有機溶劑揮發及乾 無速度較快’當然降低製程成本’並提高製程速度。當 s有軟貝4乳乙稀之底材應用本發明所掉 十域1尸斤提供之凹版塗佈 方式製作受像層時，製程速度可加恤5 八Μ 又」加陝至一分鐘約為50 米0 值得-提的是’本發明之受像層主要的功用係將底 材作定格規劃，當底材之材質含有軟質聚氣乙烯時，雖 然軟質聚氣乙烯可吸收溶劑，但其中所含之苯二甲酸二 辛酯（Di-〇ctyl Phthalate ; D0P)會使油質浮動，而油性墨 水喷於此受像層時，就會造成色彩變動。利用本發明2 受像層把底材材質中之軟質聚氯乙烯作定格規劃，並將 可能流動的D0P固定，所以色彩能有效定格，且墨水完 全被底材吸收而不會暈開，當然顯像效果較佳。由於含 有軟質聚氣乙烯之底材已有吸收油性墨水之溶劑的效 果，因此本發明之受像層的配方應用於含有軟質聚氯乙 烯之底材時，不僅降低受像層之厚度，達到相同顯像效 果，同時解決習知技術所使用之塗佈方式，在達到相同 顯像效果（至少受像層之厚度需5 # m以上）於生產上所帶 來不便利之處。 由上述本發明較佳實施例可知，應用本發明不僅可 製作厚度較薄且均勻之受像層，更用以降低製程成本， 並提高製程速度，極具經濟效益之優點。 由上述本發明較佳實施例可知，應用本發明之受像 16 592841 層可將底材作定格規劃，將色彩有效定格，使墨水完全 被底材吸收而不會暈開，因此具有顯像效果較佳之優點。 雖然本發明已以一較佳實施例揭露如上，然其並非 用以限定本發明，任何熟習此技藝者，在不脫離本發明 之精神和範圍内，當可作各種之更動與潤飾，因此本發 、 明之保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 - 第1圖為繪示依照本發明—較佳實施例的一種運用 凹版塗佈製作油性噴墨的受像層之製程簡圖。 第2圖為繪示依照本發明另—較佳實施例的—種冑 · 用凹版塗佈製作油性喷墨的受像層之製程簡圖。 第3圖為繪示依據本發明之—較佳實施例之受像層 與底材之剖面圖。 第4圖為繪示依據本發明之另—較佳實施例之受像 層、接合層與底材之剖面圖。 【元件代表符號簡單說明】 1 :受像層溶液 2 ··底材 鲁 3 :凹版滚筒 4 :鋼刀 5 :滾筒 · 6 :箭頭 - 7 ··箭頭 、 8 :加熱裝置 . 9 :底材 17 592841 10 ： 底材 12 : 受像層 14 : 接合層 101 :受像層溶液 102 :底材 103 :凹版滚筒 104 :鋼刀 105 :滚筒 106 :箭頭 107 :箭頭 108 :加熱裝置 109 •底材 110 :轉轴 111 :受像層溶液 113 ••凹版滾筒 114 :鋼刀 115 :滾筒 116 :箭頭 117 :箭頭 118 :加熱裝置 119 :底材发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a method for preparing an inkjet ink receiving layer (lmage Receptive coating) by using gravure coating (gravure CoaHng), and particularly relates to combining gravure The printing technology and the formulation of the image receiving layer can accelerate the speed of the coating process, improve the printing quality, and reduce the process cost, and its application is not limited to this field. [Previous technology] Since the development of inkjet printers, it has occupied a pivotal position in the market. This is due to the increasing production technology and the relatively low market price. In practical applications, the technical advantages of inkjet printers are mainly reflected in relatively fast printing speeds, color printing close to photo quality, and clear document printing, which are sufficient for home and business printing. There is a need for fineness and speed. At the same time, the price advantage is enough to make up for its technical distance compared to laser printers. In addition, in the choice of printing substrates, inkjet printers also have fairly flexible processing capabilities, which can print not only ordinary substrates such as envelopes and letter paper, but also various films, photo paper, roll paper, T Special substrates such as shirt transfer paper. Due to the advantages of inkjet printers in the above aspects, inkjet printers are undoubtedly the best for home users among Dot-Matrix, Inkjet, and Laser printers. select. Inkjet printers can use oil-based ink or water-based ink for printing according to different needs. The ink is easy to bleed out after adsorbing general paper, so it is necessary to coat the surface of the substrate with an image receiving layer to make the printing effect better. If the surface of the paper can evenly distribute the ink particles and the color can be saturated, the hue is good. The conventional technique of applying an image receiving layer on the surface of the substrate can achieve the effects of flat, porous, adequate grip, and bright and bright colors on the surface of the paper. Therefore, various substrate materials can be output using inkjet printers. There are two main requirements in inkjet printing. First, the image receiving layer itself must be able to absorb the ink sufficiently so that the ink is fixed on the surface of the image receiving layer without blooming. Secondly, when the ink drops on the image receiving layer, the image receiving layer also keeps the dyes or pigments in the ink on the surface of the image receiving layer and is not easy to spread, smear, or blur. % Known technology is to use an organic solvent to dissolve the image receiving layer formula into a solution, and then apply it on the substrate uniformly according to the required thickness by doctor blade coating, wire rod coating, or reverse differential coating. In order to absorb the ink of the inkjet printing device and form various preset pattern characters. The method for forming an image-receiving layer of a predetermined thickness on a substrate by using conventional techniques is as follows: first, the solid content of the image-receiving layer is dissolved into a pre-proportioned image-receiving layer solution by using an organic solvent; , Including using doctor blade coating, wire rod coating, or reverse differential coating to make the imaging layer solution on the substrate at a first thickness, where the first thickness is the pre-thickness divided by a predetermined ratio; Then, the organic solvent in the image receiving layer solution is removed by drying to form an image receiving layer with a predetermined thickness. For example, if you want to form an image layer with a thickness of 20 micrometers (Micrometer; A m), you can use an organic solvent to dissolve the solid content into an image receiving layer solution between% and 24%; then, coat the image receiving layer solution on On the substrate, a doctor blade coating, a wire rod coating, or a reversed differential coating method is used to make the image layer solution 592841 on the substrate in a thickness of 590 mils; then, it is removed by drying. The organic solvent in the image-receiving layer solution forms an image-receiving layer of 20 m. As the image-receiving layer formed by the above-mentioned conventional technology, since a thick solution of the image-receiving layer must be coated on the substrate at the beginning, the organic solvent contained therein The damage to the substrate is large. If the thickness of the coating is reduced, the drying time can be shortened to speed up the process speed. However, the coating of the image receiving layer solution by conventional techniques will have mechanical errors in thickness. When the thickness is thinner, The uneven thickness will increase. Therefore, the thickness of the image receiving layer formed by the conventional technology is limited to more than m. The preferred thickness is between 5 V m and 20 / zm. The ink won't bloom. On the one hand, the coated image-receiving layer solution is relatively thick and is prone to air bubbles, so it cannot be baked and dried at high temperature. If you want to speed up the process, you must increase the drying energy and increase the cost. In short, it is limited by the above factors The process speed of the image receiving layer formed by the conventional technology is slower. Its process speed is about 8 meters to 14 meters per minute. Because printing speed, quality and cost considerations are very important when printing graphics Therefore, it is necessary to provide a better image receiving layer and its manufacturing method. [Summary of the Invention] Therefore, the object of the present invention is to provide a method for producing an oil-based inkjet image receiving layer by gravure coating, which is a technique using gravure printing. An oil-receiving inkjet image receiving layer is produced on the surface of the substrate, and an image receiving layer having a thickness η between 2 / zm and 5 / zm can be produced, and it can also be used to reduce the process cost and increase the process speed. The known technology has a thicker receiving layer, so the process cost and process speed are slower. Another object of the present invention is to provide a method for producing 7 592841 oil-based inkjet ink using gravure coating. Image layer, where the material of the image receiving layer is at least acrylic resin (Polyvinyl Chloride; PVC) _Polyvinyl Alcohol (PVA) copolymer, and acetic acid Cellulose Acetate Butyrate (CAB). The image receiving layer of the present invention can be used to freeze the substrate and freeze the colors, so that the ink is completely absorbed by the substrate without blooming, so the imaging effect is better. According to the above object of the present invention, a method for producing an image receiving layer of oil-based inkjet by gravure coating is provided, which is used to form an image receiving layer of a predetermined thickness on a substrate. The method at least includes: using an organic solvent to The solid component mixture is dissolved into a predetermined proportion of the image receiving layer solution; coating the image receiving layer solution on the substrate 'includes evenly attaching the image receiving layer solution to a plurality of recessed holes on the gravure cylinder, and then the image receiving layer in these recessed holes The solution is evenly transferred on the substrate, so that the image-receiving layer solution is formed on the substrate with a first thickness; and the organic solvent in the image-receiving layer solution is removed by drying to form Image receiving layer of a predetermined thickness. According to a preferred embodiment of the present invention, the solid component mixture mentioned above comprises at least an acrylic resin, a gas-polyethylene-polyvinyl alcohol copolymer, and cellulose acetate butyrate. According to a preferred embodiment of the present invention, the thickness of the image receiving layer is between 2 / zm and 5 / zm. According to a preferred embodiment of the present invention, the material of the above-mentioned substrate is at least soft polyethylene. According to the purpose of the present invention, an oil-jet inkjet image receiving layer is prepared by gravure coating, wherein the material of the image receiving layer includes at least: acrylic 8 and cellulose acetate butyrate fiber-based resin, a polyethylene-polyvinyl alcohol copolymer, Element 0 = invention-a preferred embodiment, in which the material of the above-mentioned substrate contains soft polyethylene gas. According to another object of the present invention, a photoreceptor for gravure coating [for use in an inkjet inkjet printing process is characterized in that the material of the photoreceptor layer is made of acrylic resin, polyvinyl chloride-polyethylene Alcohol copolymer and cellulose acetate butyrate. According to the present invention-the preferred embodiment, wherein the material of the above-mentioned substrate contains at least soft polyethylene gas. One of the advantages of the present invention is to provide a method for producing an oily 1 inkjet imaging layer by gravure coating, which uses the technique of gravure printing to produce an image receiving layer of oily inkjet on the surface of a substrate. Not only can a thin and uniform image receiving layer be produced, it is also used to reduce the process cost and increase the process speed, which is extremely economical. Another advantage of this month is to provide an under-image layer for oil-based inkjet by gravure coating. The image-receiving layer can plan the substrate and fix the color effectively, so that the ink is completely absorbed by the substrate without Will faint, so the development effect is better. [Embodiment] Please refer to FIG. 1, which shows a simplified process diagram of an oil-based inkjet image receiving layer using gravure coating according to a preferred embodiment of the present invention. To form an image receiving layer of a predetermined thickness, first, the solid component mixture of the image receiving layer is dissolved into a predetermined ratio of the image receiving layer solution 1 by using an organic solvent, wherein the solid component mixture includes at least an acrylic resin and a polyvinyl alcohol-polyvinyl alcohol copolymer. And cellulose acetate butyrate; then, coating the image receiving layer solution 1 on the substrate 2 includes uniformly coating the image receiving layer solution on the gravure cylinder 3, wherein the gravure cylinder 3 has a plurality of recesses having a first depth Holes (not shown), first scrape off the excess image-receiving layer solution 1 on the surface of the gravure cylinder 3 with a steel knife (Doctor) 4 so that the first-depth image-receiving layer solution 1 remains in these recessed holes, and then apply the desired coating The cloth substrate 2 uses the roller 5 to press the gravure cylinder 3 tightly. The gravure cylinder 3 rotates in the direction of arrow 6 and the cylinder 5 rotates in the direction of arrow 7 so that the image receiving layer solution 1 on the gravure cylinder 3 is evenly transferred to the substrate 2 At this time, the image-receiving layer solution 1 is formed on the surface of the substrate 2 with a first thickness, where the first thickness is a predetermined thickness divided by a predetermined ratio, that is, the first depth; Shu receiving layer solution is removed as the organic solvent, thereby having a predetermined thickness to form the image receiving layer of the substrate 9. For example, if you want to form a 2 / ίZ party image layer, you can use an organic solvent to dissolve the solid content mixture into a 16.5% image receiving layer solution; then, apply the image receiving layer solution to the substrate, including applying the image ^ The solution is evenly adhered to a plurality of recessed holes on the gravure cylinder, wherein these recessed holes have a depth of 13 / zm. First, the excess imaging layer solution on the surface of the gravure cylinder is scraped off with a steel knife, so that the recessed holes remain in the recessed holes There is a receiving layer solution with a depth of Up, and then the substrate to be coated is pressed against the gravure cylinder, so that the remaining receiving layer solution in these recesses is evenly transferred to the substrate, so that the double image layer solution is 13 to m. The thick layer is produced on the substrate; the dryness is formed on the substrate; then, the right image layer in the image receiving layer solution is removed by drying. The organic solvent of T is formed by the method of coating the image receiving layer solution of the present invention, and is applied in a single coating up to 592841 to the required thickness of the image receiving layer. However, in order to avoid large-scale or high-speed production, it is easy to cause defects due to operational negligence. As a result, the effect of the image receiving layer is not good. Therefore, the present invention can further adopt a continuous secondary coating of the image receiving layer solution for staggered coverage, and the image receiving layer will be more uniform. Please refer to FIG. 2, which is a schematic diagram illustrating a manufacturing process of an oil-based inkjet receiving layer using gravure coating according to another preferred embodiment of the present invention. To form an image receiving layer with a predetermined thickness, first, the solid component mixture of the image receiving layer is dissolved into a predetermined ratio of the image receiving layer solution 101 and the image receiving layer solution m by using an organic solvent, wherein the solid component mixture includes at least an acrylic resin and a polyvinyl chloride. _Polyvinyl alcohol copolymer, and cellulose acetate butyrate; then, the first application of the image receiving layer solution 101 on the substrate 102, including uniformly coating the image receiving layer solution on the gravure cylinder 103, wherein the gravure cylinder 1 〇3 has a plurality of recessed holes (not shown) with a second depth. First, use a steel knife 104 to scrape off the excess imaging layer solution 1 0 1 on the surface of the gravure cylinder 10, so that the inside of these recessed holes The receiving layer solution 10 1 having the first depth is left, and then the substrate to be coated i 〇 2 is pressed tightly by the gravure roller 10 03 with the roller 105, and the gravure roller 10 is rotated in the direction of the arrow 10 and the roller 105 rotates in the direction of arrow 107 to transfer the image receiving layer solution 10 on the gravure roll 10 to the substrate. At this time, the image receiving layer solution 101 is formed on the substrate with a second thickness. ι〇2 on the surface 'where the second thickness is The thickness obtained by dividing a predetermined thickness by a predetermined ratio is the second depth. Then, by drying, for example, heating Pei 108, the organic solvent in the image receiving layer solution 101 is removed to thereby form an image receiving layer having a half of the predetermined thickness. The substrate 109; subsequently, the substrate = 109 is transported by 11 through a plurality of transfers, and then a second coating is performed on the substrate 109 like a layer / mixture 111, including uniformly coating the image receiving layer solution 592841 on On the gravure cylinder 113, where the gravure cylinder 113 has a plurality of recessed holes (not shown) having a second depth, first use a steel knife 丨 14 to scrape off the excess image receiving layer solution on the surface of the gravure cylinder 113 丨 丨 丨The receiving layer solution m of the second depth is left in the recessed hole, and then the substrate 109 to be coated is pressed against the gravure cylinder 113 by the roller ι15. The gravure cylinder 113 rotates in the direction of arrow 116, and the roller 115 is in the direction of arrow 117. Rotate so that the image receiving layer solution 丨 丨 丨 on the gravure cylinder i 13 is evenly transferred to the substrate 109. At this time, the image receiving layer solution i 丨 丨 is also formed on the surface of the substrate 109 with a second thickness, where the second thickness is Predetermined thickness One-half of the pre-obtained Cloth ratio, that is a second depth; then dried using, for example, a heating device 118, the image receiving layer is removed 1U solution in an organic solvent 'Shushu thereby forming a substrate 9 having a predetermined thickness of the image receiving layer. When the method of applying the present invention for continuous secondary coating of the image-receiving layer solution is formed 'each time the image-receiving layer solution is applied to the substrate at a thickness of 7 m', not only the drying step is accelerated, but the coating speed can be accelerated. Therefore, the time during which the organic solvent in the image receiving layer solution stays on the substrate can be shortened, and the damage to the substrate by the organic solvent is relatively reduced. The method for producing an oil-based inkjet image receiving layer by gravure coating according to the present invention is characterized in that an oil-based inkjet image receiving layer is produced on a substrate by using a gravure printing technique, and the formed image receiving layer is not only thin, but also The depth of the recessed holes in the gravure printing cylinder is precise, so the thickness of the image receiving layer is more accurate, and the coating is more uniform. According to the method for preparing an oil-based inkjet image receiving layer by gravure coating according to the present invention, in the step of applying the image receiving layer solution on the substrate, the roller can be used to repeatedly apply the image receiving layer solution to the substrate twice, so that The receiving layer 12 is coated more uniformly. The method of using the gravure coating to produce an oil-based inkjet image receiving layer method is that the used image receiving layer is less soluble and the organic material is lower, which not only reduces the process cost and the catching time of the process, but also shortens the drying time. Short drying times can be used. Strong organic μ 'to reduce the use of gravure coating according to the present invention to produce an oil-based inkjet image receiving layer', 'dry in order to remove the organic solvent in the image layer solution' in the middle 'to dry the image receiving layer solution The air volume, temperature, and time depend on the tension and the material of the substrate used. This is known to those skilled in this technology, so it will not be repeated. In addition, the present invention further discloses a gravure coating for producing oil, an inkjet image receiving layer 'wherein the image receiving layer is formed on a substrate, and the material of the image layer is at least made of acrylic resin, polymer It consists of vinyl chloride polyvinyl alcohol copolymer and cellulose acetate butyrate. Esters are used as organic solvents, such as n-Propyl Acetate (NPAC). 'Acrylic resins, polyethylene-polyvinyl alcohol copolymers, and cellulose acetate butyrate are dissolved into an image-receiving layer solution. According to the required degree, it is evenly coated on the substrate to facilitate the absorption of the ink of the inkjet printing device to form various preset pattern characters. According to the invention described above, the gravure coating is used to make an oil-based inkjet image receiving layer, and the material of the substrate used at least contains soft polyvinyl chloride. Please refer to FIG. 3 ', which is a cross-sectional view of an imaging layer and a substrate according to a preferred embodiment of the present invention. For example, when the material of the substrate 10 is, for example, paper, a polyethylene flexible tape, or a polyethylene sandwich fabric 13, the material of the image receiving layer 12 can be applied. Please refer to FIG. 4, which is closely adhered to the substrate 10. The material shown in FIG. 4 is an image receiving layer according to another embodiment of the present invention. Sectional view of layers and substrates. If the material is, for example, polyester (Pol-human ".bl), then the interface 14 can be used to make the material of the image receiving layer 12 adhere to the substrate 1G. In addition, if the substrate U) itself does not absorb the ink well, such as polypropylene (PolyPr ° Pylene; PP) poster paper, the polypropylene poster paper is subjected to a pretreatment such as underlaying. The polygas particles are dissolved into a solid solution, and they are evenly coated on the substrate to form a soft polygas bake, which helps to absorb the solvent components in the ink. Therefore, the image receiving layer Η of the present invention is based on the material of the substrate 10 and can be directly coated or bonded to the substrate 10 through the bonding layer 14. According to the invention described above, the gravure coating is used to make an oil-based inkjet image receiving layer. The acrylic resin used is granular, and the polyvinyl chloride-polyvinyl alcohol copolymer is powdered. % Of polyvinyl alcohol, and cellulose acetate butyrate is powdery. The above-mentioned polyethylene-polyethylene copolymer and cellulose acetate butyrate are used to help the material of the image receiving layer be more resistant to organic solvents. The material of the image receiving layer of the present invention may further include Polyurethane (PU), wherein the polyurethane is liquid. The following is a description of the formulation of an oil-based inkjet image receiving layer using gravure coating using a preferred embodiment of the present invention. For example, to form an image receiving layer having a thickness of 2 / zm, first, an acrylic resin with a weight percentage of 45% to 60% and a weight of 30% to 45% are polymerized. Gas ethylene-polyvinyl alcohol copolymer, polyurethane with a weight percentage of 0% to 10%, and weight percent of 592841 weight percent 6% to 21% of the weight of ^ ^ π y 'S cellulose butyrate The use of esters as organic solvents, such as n-propylacetate, dissolves a solution of the image receiving layer in a predetermined ratio, where the predetermined ratio is, for example, 16.5 /. However, the present invention is not limited to this. On the substrate, including uniformly sticking the image receiving layer solution to the gravure coated roll, and then coating the roll with the image receiving layer solution evenly on the substrate. The upper six, more like a layer solution is formed on the substrate with a thickness of 13 / zm, and then the organic solvent in the image layer solution is removed with the use of Xu Zhi J; and a 2 / zm image receiving layer is formed. As described above, in the step of applying the photoreceptor layer solution to the substrate, it is more possible to continuously apply the photoreceptor layer solution twice for staggered coverage, and the photoreceptor layer will be more useful. In the form of a solution, 'each time the applied image receiving layer solution is formed on the substrate with a thickness of 7 cores; and then' the organic solvent in the image receiving layer solution is also removed by drying to form a 2 // m image receiving layer. However, the formulation of the photoreceptor layer of the present invention is not limited to the above ratio. For example, the weight percentage of the acrylic resin may be between 45% and 60%, and the weight percentage of the polyethylene-polyvinyl alcohol copolymer may be mediated. Between 30% and 45%, the weight percentage of polyurethane is between 0% and 10%, and the weight percentage of cellulose acetate butyrate is between 6% and 21%. According to the above, the present invention uses gravure coating to make an oil-based inkjet image receiving layer, which is characterized in that the composition of the image receiving layer contains cellulose acetate butyrate, not only the gloss of the image receiving layer formed is the same as the conventional image receiving layer, Among them, cellulose acetate butyrate is more conducive to the resistance of the material of the image layer to organic solvents. At the same time, it has good weather resistance outdoors without yellowing. 15 592841 Secondly, compared with the conventional image receiving layer, the thickness of the image receiving layer opened / formed in this month can be formed to a thickness of 2 / zm to M & depending on requirements. Because the thickness of the formed image receiving layer is relatively thin, the organic solvent volatilizes and dries quickly. Of course, the process cost is reduced, and the process speed is increased. When the substrate with soft shell, 4 milk, and ethylene is applied to the image receiving layer by the gravure coating method provided by the present invention, which is provided by ten corpses and one corpse, the process speed can be increased by 5 to 8 MPa. 50m0 It is worth mentioning that 'the main function of the image receiving layer of the present invention is to make a fixed plan for the substrate. When the material of the substrate contains soft polyethylene gas, although the soft polyethylene gas can absorb the solvent, it contains Di-octyl Phthalate (DOP) will cause the oil to float, and when oily ink is sprayed on this image receiving layer, it will cause color changes. By using the image receiving layer of the present invention, the soft polyvinyl chloride in the substrate material is used for freeze-frame planning, and the DOP that may flow is fixed, so the color can be effectively freeze-framed, and the ink is completely absorbed by the substrate without blooming. The effect is better. Since the substrate containing soft polyethylene has the effect of absorbing the solvent of the oily ink, when the formulation of the image receiving layer of the present invention is applied to the substrate containing soft polyvinyl chloride, the thickness of the image receiving layer is not only reduced to achieve the same development. Effect, while solving the coating method used in the conventional technology, inconvenience in production is achieved in achieving the same development effect (at least the thickness of the image receiving layer needs to be 5 # m or more). It can be known from the above-mentioned preferred embodiments of the present invention that the application of the present invention can not only produce a thin and uniform image receiving layer, but also reduce the cost of the process and increase the speed of the process, which is extremely economical. From the above-mentioned preferred embodiments of the present invention, it can be known that the application of the 16 592841 layer of the present invention can be used to freeze the substrate, and the colors can be effectively freezed, so that the ink is completely absorbed by the substrate without blooming. Good advantages. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make various changes and decorations without departing from the spirit and scope of the present invention. The scope of protection of the development and declaration shall be determined by the scope of the attached patent application. [Brief description of the drawings]-FIG. 1 is a schematic diagram showing a process for producing an oil-based inkjet image receiving layer by gravure coating according to a preferred embodiment of the present invention. FIG. 2 is a schematic diagram illustrating a process for producing an oil-based inkjet image receiving layer by gravure coating according to another preferred embodiment of the present invention. Fig. 3 is a sectional view showing an image receiving layer and a substrate according to a preferred embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating an image receiving layer, a bonding layer, and a substrate according to another preferred embodiment of the present invention. [Simplified description of component representative symbols] 1: Solution of the image receiving layer 2 · Substrate Lu 3: Gravure roller 4: Steel knife 5: Roller 6: Arrow-7 · Arrow, 8: Heating device. 9: Substrate 17 592841 10: substrate 12: image receiving layer 14: bonding layer 101: image receiving layer solution 102: substrate 103: gravure roller 104: steel knife 105: roller 106: arrow 107: arrow 108: heating device 109 • substrate 110: shaft 111: image receiving layer solution 113 • Gravure roller 114: Steel knife 115: Roller 116: Arrow 117: Arrow 118: Heating device 119: Substrate