200807208 九、發明說明: 【發明所屬之技術領域】 #別是指一種染 種偵測回饋裝置 本發明是有關於-種_回饋方法, 料自動須測回饋方法。本發明亦有關於一 4寸別疋#日種染料自動偵測回饋裝置。 【先前技術】200807208 IX. Description of the invention: [Technical field to which the invention pertains] #别是指种种检测回回装置 The present invention relates to a seed-feedback method, and an automatic feed-receiving method. The invention also relates to a 4-inch 疋# Japanese dye automatic detection and feedback device. [Prior Art]
在偏光板之製備過程中’需將一薄膜材料【於此以常 用的材質聚乙烯醇(即polyvinyl alcohol,簡稱pva)_】 放入染槽内,而使微熱的染液中之染料滲入,以進行毕色 ,之後以機械方式拉伸至數倍長度,使得原本為無規^地 分布之PVA分子,在拉伸過程中逐漸偏轉於作用力方向上 ,附著於PVA分子上之染料也就隨之而有方向性,藉此, 染料會吸收與電場震動方向平行的光,而讓與電場震動方 向垂直的光通過,於是形成偏光效果。之後pvA膜再經過 一内置有4 wt% KI及3wt%硼酸且溫度約為5〇〇c的延伸槽 ,繼而以一乾燥機在約5(TC下進行乾燥,而製成一偏光元 件,之後透過接著劑使二片三乙醯纖維素(tdacety i cellulose ,簡稱TAC)薄膜以夾置該偏光元件的方式進行貼合,而製 成一偏光板。 在此領域中,PVA膜之染料滲入量可藉由例如分光光 度計所量測到之光透過率(Transmittance)來表示;光透過率 越低者意味著滲入於該P VA膜上的染料越多,反之則越少 。而當染液内之染料濃度越高時,所獲得之PVA膜因滲入 有越多的染料量而呈現越低的光透過率,反之則越高;然 200807208 而’在染液内之染料未加以補充的前提下,染液中的染料 量勢必會隨著所累積之PVA膜的被染色量而逐漸降低,因 此將會使得之後滲入於PVA膜之染料量漸少,經染色之 PVA膜的光透過率於是逐步提高,如此勢必會影響往後穿 成偏光膜時的品質,因此使用同一染液但於不同時間染出 的PVA膜之染色品質也將有所差異。In the preparation process of the polarizing plate, a film material is required to be placed in the dyeing tank by using a commonly used polyvinyl alcohol (referred to as polyvinyl alcohol (pva) _], so that the dye in the slightly hot dyeing solution penetrates. To perform the color, and then mechanically stretch to several times the length, so that the PVA molecules which are originally randomly distributed are gradually deflected in the direction of the force during the stretching process, and the dye attached to the PVA molecules is also Along with this, the dye absorbs light parallel to the direction of the electric field vibration, and allows light perpendicular to the direction of the electric field to pass, thereby forming a polarizing effect. The pvA film is then passed through an extension tank containing 4 wt% KI and 3 wt% boric acid at a temperature of about 5 〇〇c, and then dried in a dryer at about 5 (TC) to form a polarizing element. Two sheets of tributyl phthalocyanine (TAC) film are bonded together by means of an adhesive to form a polarizing plate. In this field, the dye penetration amount of the PVA film is obtained. It can be represented by, for example, the light transmittance measured by a spectrophotometer; the lower the light transmittance, the more dyes infiltrated into the P VA film, and vice versa. The higher the concentration of the dye inside, the lower the light transmittance of the obtained PVA film due to the more the amount of dye infiltrated, and vice versa; the 200807208 and the premise that the dye in the dye solution is not replenished The amount of dye in the dyeing solution is bound to decrease gradually with the amount of dyed PVA film, so that the amount of dye that infiltrates into the PVA film will gradually decrease, and the light transmittance of the dyed PVA film will be Gradually improve, so it will inevitably affect the future wear The quality of the polarizing film is such that the dyeing quality of the PVA film which is dyed at the same time using the same dyeing solution will also differ.
因此,可想而知的是,不同時間點而染色完成之各 PVA膜’皆需被控制以具有一定範圍内的光透過率,才能 呈現一致的高染色品質;而若是以更新染液的作業方式來 進仃凋控,則製造商勢必耗費高度的時間、人力,與物料 成本’於是更為適當的做法’是將染槽中染液的染料濃产Therefore, it is conceivable that each PVA film which is dyed at different time points needs to be controlled to have a certain range of light transmittance in order to exhibit consistent high dyeing quality; The way to get into control, manufacturers will inevitably spend a lot of time, manpower, and material costs 'so more appropriate' is to dye the dye in the dyeing tank
隨時調控在某一適當範圍内。 X 先別業界中胃採取人工監控的方式來掌握染槽中染液 的氷料(例如硼酸)之濃度。复 … 里士入七,# ” 先疋取出乐液以作為試劑, 再“以氫氧化鈉溶液為例)來滴定,並以肉 液經檢劑滴定後顏色的變化, 〇 依據朱 末推^浴液中染料的濃度,萨此 、- 少的染料。 曰ϋ 乐槽内需要補充多 以及所使用之染料與對應 :=讀況, 要在於,每隔-段時間即要進行二上述方法的缺點主 ,長久下來㈣耗掉大量之檢劑,^取樣滴定」的程序 擔丨再者,自取出染 b勢必為成本之一大負 已然有-時間差,若在「取後4認該染液中之染料濃度, 右在取樣滴定」程序進行當時,產線 6 200807208Control at any time within an appropriate range. X First, the industry's stomach should be manually monitored to grasp the concentration of the ice material (such as boric acid) in the dyeing tank. ...... 里士入七,# ” First take out the liquid as a reagent, then “sodium hydroxide solution as an example” to titrate, and the color change after the titration of the meat solution, 〇 according to Zhu’s push ^ The concentration of the dye in the bath, such as this, - less dye.曰ϋ The need to add more in the music trough and the dye used and the corresponding: = reading, it is necessary to carry out the disadvantages of the above two methods every other time, the long-term (four) consume a large amount of the test agent, ^ sampling The procedure of "titration" is more important. Since the extraction of dyed b is necessary, the cost is one of the big negatives. There is already a time difference. If the process of "following the dye concentration in the dye solution after the take-up, right in the sampling titration" is carried out, Production line 6 200807208
疋持々運作的’則所獲得之染料濃度檢測值僅能表示在取 出2液當時的染料濃度,而非完成檢測後當時染槽内染液 木料/辰度,因此易使操作人員低估了染料之應有補充量 =算,操作人員刻意多加入了一些染料來作為補充,亦 I此加%過多而使後來該染槽内染液之染料濃度過高,故 A 3内木液之木料、,辰度並不容易被控制在廠商所欲之固定 範圍内如此將造成各PVA膜間之染色品質失去一致性。 A或者工作人員可在欲檢測染槽内染液之染料濃度時即 钕機’以避免檢測時所獲得的染料濃度值與欲補充時的實 際染料濃度值有所落差,如此當可極為精準地調整染液内 的染料濃度,但停機勢必會影響產能。 台灣專利證書號祕咖之專利案揭露了一種染液自 動偵測回饋裝置’主要是依據一偵測裝置,其能自動化卑 樣該染槽中之染液,並將該毕液揭。 木,夜樣口口與一檢劑滴定後,你 據該染液樣品經滴定前後的電位差,來判斷染液中染料贫 濃度;若該濃度低於標準,再將一德 ^ 、、 卞丹肝储放於染液母液儲存補 中的染液母液,透過一力σ藥控制裝置央曰 , 衣置不將適I的染料母液 導入該染槽中,藉此將該染槽中之举 <木,夜的染料濃度控制在 一適當範圍内。 但是:此方法僅是將「取樣滴定」的程序由人工方式 轉換為機械自動化方式,且依其談明查楚 、乃曰弟10頁第15行所 吕’取樣分析時間足足達八分鐘,因卜 、 U此间樣亦有上述習知 方法之「染料濃度不易被控制在所欲範 间W」的困擾,而 充其Ϊ僅疋將原本的人力成本轉為設借击 侑成本,並同樣地亦 7 200807208 需耗費檢劑。 因此,如何能使相關廠商 工時成本門伃以就旎確實降低耗材與 町风不(例如可免於施以「 槽中的_ #、、曲# # 7 ’」私序),卻又可將染 價甲的木科辰度簡便地調控於所欲一 對使得在不同時間毕 内’猎此相 之各PVA膜的光透料,仍可具 有冋一致性,提昇後續產品良率,一 士所極H求的方法。 都疋本領域相關人 【發明内容】 ,為縮短工時且不對染液施以「取樣滴定 造=:濃度的前提下’或可嘗試轉以考量製 另外將中染料損失量有關的其他操作條件,並 另外將以往所累積的各項製 人盔从田 項製程立驗,來與該等條件相互整 :果’繼而依此結果判斷在何種狀況下需對該染槽 中的染液提供多少染料。 由於PVA膜進行染色作業時,其溫度、Μ膜的前進 ^ /VA膜浸潰於染液中的時間,及pvA膜拉伸處理作 業之貫施時間點等操作條件,一般而言是固定的,且 是持續採用具有特定型號或規格之pvA膜(亦即其質地、厚 度、寬度皆不會隨時間而有所變化),因此,申請人預料, 有關於該染液中染料消耗的考量因素,應可單純簡化到以 「該爾膜穿經該染槽中的染液而被染色之被染色量」來 評估’也就是藉由被染色之pVA膜量,來推測該染液中被 消耗掉的染料,繼而評估需再添補多少染料於該染液中, 而將染液内之染料濃度調控於所欲之固定範圍内。 8 200807208 、因此,基於上述概念,本發明提供之一種染料自動偵 二:貝方去,疋在一用以將一光學材料染色之染色裝置上 貝該木色裝置包含有一内置有一染液的染槽;該染料 自動偵測回饋方法包含之步驟為: ^一量測步驟:是用以量測該光學材料之被染色量,而 ‘得對應之圮錄值,並將該記錄值傳送至一控制單元; 以及 一補充步驟:是以該控制單元所得到之該記錄值,而 調控二含有補充液的補充單元,使其將該補充液適度地提 供至該染槽内,而讓該染槽之染液中染料的濃度控制在一 適當濃度範圍内。 /確保該染液巾之染料濃度確實在所欲控制之範圍内 κ土地’本發明之一種染料自動债測回饋方法,更包括 -監控步驟,其是以—評估單元評估該染槽内染液之染料 濃度後而得之一評估值,若其超過一預定之評估範圍,則 啟動- &控單以使其探測該染槽内染液之染料濃度並獲 得:監控值,若其超過一預定之監控範圍,則將該監控值 傳达至該控制單元’以使該控制單元能依據該監控值而調 控該補充單S,讓其將賴綠適度地提供至該染槽内, 而使該染槽内染液中染料的濃度控制在該適#濃絲圍内 〇 於是,本發明另亦提供一種染料自動偵測回饋裝置, 疋依據该染料自動偵測回饋方法之各實施步驟而進一步設 計,其是裝設在一用以將一光學材料染色之染色裝置上, 200807208 該染色裝置包含有一内置有一染液的染槽,及一用以輸送 該光學材料穿經該染液地進出該染槽之輸送單元,其中, 該杂液之染料是需被維持至一適當濃度範圍内;該染料自 動偵測回饋裝置則包含: 一補充單元,是提供一具有一補充濃度之染料的補充 液至該染槽内,其中,該補充濃度是大於該適當濃度範圍 , 一量測單元,是用以量測該光學材料被染色量,並就 該被染色量提供一對應之記錄值;以及 一控制單元’是電連接於該量測單元,並依據該記錄 值來操控該補充單元之補充液供應至該染槽的量,以使該 染槽内之染液的染料濃度維持在該適當濃度範圍内。 一般說來’該輸送單元可為複數滾輪組,每一滾輪組 具有相互並排且樞轉方向相反的兩滚輪,而適用以輸送一 主長條形薄膜之光學材料,例如本發明所示範之pVA膜, 而PVA膜則自該各滾輪组的兩滾輪之間,藉由其樞轉,而 穿經該染液地朝一預定方向被輸送。 在實務操作上,染液中的染料可包含數種成分,其可 由热習此技藝者依其專業素養及自身需求來選擇並調配; 特別是,依本案之發明概念,是可選擇就該染料中的部分 或者是全部成分,來調控於所欲之適當範圍,同樣地其亦 是視熟習此技藝者之需求來自行決定。 例如本發明所示範的,該染液内是含有〇 〇15 wt%的“ 、〇·5 wt%的ΚΙ、〇·2 wt%的ϋ3Β〇3,以及佔其餘部分的水 10 200807208 ,·然僅就選擇i2與KI兩種成分來調控。於該染液中, H3B〇3是作為交聯劑使用,但其是本案具體例中未予調控的 成分,故有關於H3B〇3之用途與對染色之影響等資訊,在 此暫不予說明。 為使該補充單元可提供補充液至該染槽内,較佳地, 該補充單元是包括有一容納該補充液之補充槽、一連通於 該補充槽與該染色裝置之染槽的補充管路,及一用以控制 該補充液之輸出量的流量閥。The dye concentration detection obtained by the operation of the 々 仅 can only indicate the dye concentration at the time of taking out the liquid 2, rather than the wood/density of the dye liquor in the dyeing tank after the completion of the test, so the operator is underestimated the dye. There should be a supplementary amount = calculation, the operator deliberately added some dyes as a supplement, and I added too much to make the concentration of the dye in the dyeing tank in the dyeing tank too high, so the wood in the A 3 wood, It is not easy to be controlled within the fixed range desired by the manufacturer, which will result in the loss of consistency in the dyeing quality between the PVA films. A or the staff can detect the concentration of the dye in the dyeing tank in the dyeing tank, so as to avoid the difference between the dye concentration value obtained during the detection and the actual dye concentration value to be replenished, so that the accuracy can be extremely accurate. Adjust the dye concentration in the dye solution, but the shutdown will inevitably affect the production capacity. The Patent No. of the Taiwan Patent Certificate No. Secret Coffee discloses a dyeing liquid automatic detection and feedback device' which is mainly based on a detecting device which can automatically smear the dyeing liquid in the dyeing tank and expose the liquid. After the titration of the wood sample and the mouth of the test sample, you can judge the lean concentration of the dye in the dye solution according to the potential difference before and after the titration of the dye solution; if the concentration is lower than the standard, then one will be ^, , and 卞丹The mother liquor of the dye solution stored in the stock solution of the dye solution is passed through a force control device, and the dye solution is not introduced into the dye tank, thereby lifting the dye tank. Wood, night dye concentration is controlled within an appropriate range. However, this method only converts the "sampling titration" program from manual to mechanical automation, and according to its narration, Chu, and the 10th page of the 15th line, the sampling analysis time is enough for eight minutes. In this case, there is also the above-mentioned conventional method that "the dye concentration is not easily controlled in the desired range W", and it is only necessary to convert the original labor cost into the cost of borrowing, and similarly Also 7 200807208 Need to consume the test. Therefore, how can the relevant manufacturers' cost of working hours be reduced so that the consumables and the winds are not reduced (for example, they can be exempted from the private order of _#, 曲## 7 ' in the trough), but they can The light-transparent material of the PVA film which is used to sculpt this phase at different times can still have the consistency of the dyeing and the yield of the subsequent products. The method of seeking the best. Tudor people in this field [invention], in order to shorten the working hours and do not apply the "sampling titration = concentration" to the dyeing solution, or try to transfer to other operating conditions related to the amount of dye loss. And in addition, the various helmets that have been accumulated in the past have been tested from the field project to rectify these conditions: “The result of this is to judge the conditions under which the dye liquor in the dyeing tank needs to be provided. How many dyes are used? Due to the temperature of the PVA film, the advancement of the film, the time when the film is immersed in the dye solution, and the operating time of the pvA film stretching process, in general, It is fixed and continuously uses a pvA film with a specific model or specification (that is, its texture, thickness, and width do not change with time). Therefore, applicants expect that the dye consumption in the dye solution will be The consideration should be simply simplified by evaluating the amount of dyed dyed by the dyed liquid in the dyeing tank, that is, by estimating the amount of pVA film dyed. Dyes consumed in How much would then assess complement dye and added to the dyebath, and the dye concentration in the bath is regulated within a fixed range to the desired. 8 200807208 Therefore, based on the above concept, the present invention provides a dye automatic detection method: a square dyeing device, a dyeing device for dyeing an optical material, the wood color device comprises a dyeing liquid with a built-in dyeing solution. The method for automatically detecting the feedback of the dye comprises the following steps: ^ a measuring step: measuring the amount of dyed optical material, and selecting the corresponding recorded value, and transmitting the recorded value to a control unit; and a supplementary step of: adjusting the two replenishing units containing the replenishing liquid by the recording value obtained by the control unit, so that the replenishing liquid is appropriately supplied into the dyeing tank, and the dyeing tank is allowed to be The concentration of the dye in the dye liquor is controlled within a suitable concentration range. / to ensure that the dye concentration of the dyeing liquid towel is within the range of the desired control κ land 'a dye automatic feedback testing method of the present invention, and further includes a monitoring step, which is to evaluate the dyeing liquid in the dyeing tank by the evaluation unit The dye concentration is obtained as an evaluation value. If it exceeds a predetermined evaluation range, the -& control is activated to detect the dye concentration of the dye liquor in the dyeing tank and obtain: monitoring value if it exceeds one a predetermined monitoring range, the monitoring value is communicated to the control unit', so that the control unit can adjust the supplementary sheet S according to the monitoring value, so that it can provide the green color to the dyeing tank moderately, so that The concentration of the dye in the dyeing solution in the dyeing tank is controlled within the range of the appropriate thickness. Therefore, the present invention further provides a dye automatic detecting and feedback device, which further proceeds according to various implementation steps of the dye automatic detecting and feeding method. Designed to be mounted on a dyeing device for dyeing an optical material, 200807208. The dyeing device comprises a dyeing tank with a dye liquor embedded therein, and a device for transporting the optical material through the dye liquor a conveying unit for entering and leaving the dyeing tank, wherein the dye of the liquid mixture is to be maintained to a proper concentration range; the dye automatic detecting and feeding device comprises: a supplementary unit for providing a dye having a complementary concentration Replenishing liquid into the dyeing tank, wherein the supplementary concentration is greater than the appropriate concentration range, a measuring unit is configured to measure the amount of dyeing of the optical material, and provide a corresponding recorded value for the amount of dyed; And a control unit is electrically connected to the measuring unit, and according to the recorded value, the amount of the replenishing liquid supplied to the replenishing unit is controlled to be supplied to the dyeing tank, so that the dye concentration of the dyeing liquid in the dyeing tank is maintained at the Within the appropriate concentration range. Generally speaking, the conveying unit can be a plurality of roller sets, each roller set having two rollers which are mutually juxtaposed and pivoted in opposite directions, and is suitable for conveying an optical material of a main elongated film, such as the pVA of the present invention. The membrane, and the PVA membrane is transported in a predetermined direction through the dye liquor by pivoting between the two rollers of the roller sets. In practice, the dye in the dye liquor may contain several components, which may be selected and formulated by the skilled person according to their professional literacy and their own needs; in particular, according to the inventive concept of the present invention, the dye may be selected. Some or all of the ingredients are used to regulate the appropriate range, and it is also determined by the needs of those skilled in the art. For example, as exemplified in the present invention, the dye liquor contains 15 wt% of 〇〇, 〇·5 wt% of ΚΙ, 〇·2 wt% of ϋ3Β〇3, and the rest of the water 10 200807208, Only the two components of i2 and KI are selected for regulation. In the dye solution, H3B〇3 is used as a crosslinking agent, but it is an unregulated component in the specific case of the present case, so the use of H3B〇3 is The information on the influence of the dyeing is not described here. In order to enable the supplementing unit to supply the replenishing liquid to the dyeing tank, preferably, the replenishing unit includes a replenishing tank for accommodating the replenishing liquid, and a communication The supplementary tank and the supplementary line of the dyeing tank of the dyeing device, and a flow valve for controlling the output of the replenishing liquid.
該補充單元之補充液的染料成分,是依據廠商所使用 之光學材料材質與其所欲達到之目的而定;以該光學材料 為一 PVA膜為例,並配合相對應之染液中染料的成分(碘、 碘化鉀、硼酸),較佳地,該補充單元之補充液的染料成分 是包含有碘化鉀及碘。當該補充液添加進該染槽中之染液 時,碘化鉀及碘會依據以下化學反應式而生成將該pvA膜 染色之1厂: KI—KH—,厂+12㈠ 13一 由以上化學反應式可知,使用碘化鉀之主要目的是在 於其可在溶液中釋放出碘離子。因此,實際實施時亦可以 其他能釋放出碘離子之化合物來替代碘化鉀,例如可使用 碘化氫(hydrogen iodide,HI)、碘化鋰(iithium i〇dide,Lii) 、碘化鈉(Sodium iodide,Nal) ' 碘化鋅(zinc i〇dide,z仏) 、蛾化链(alumimim iodide,A1I3)、碘化鉛【⑴ iodide^!)、lead(II) iodide(Pbl2)】、碘化銅⑴(c〇pp⑴ iodide,Cul)、碘化鋇(barium iodide,Bal2)、碘化鈣 11 200807208 (calcium iodide,Cal2)、填化錫【tin(II) iodide,S11I2 ; tin(IV) iodide(SnI4)】、礎化鈦【titanium(II) iodide,Til2 ; titanium(III) iodide,Til3 ; titanium(IV) iodide,Til4】,以及 碘化钻(cobalt(n) iodide,C0I2);其中,蛾化氫、块化經、 蛾化鈉、硪化鋅,是被認為較佳者。 該補充單元之補充液的染料濃度並未有特殊之限制, 並可依據製造商之需要或所適用之光學材料的種類而變化 。於本發明中,當該染料是包含有碘化鉀及碘時,以該補 充單元之補充液的重量計,較佳地,蛾化鉀的補充濃度是 介於5 wt%〜50 wt% ,埃的補充濃度是介於5wt%〜90 wt % ;更佳地,碘化鉀的補充濃度是介於6 wt%〜30 wt% , 碘的補充濃度則是介於6 wt%〜50 wt% ;最佳且於本案之 一具體例中所例示者,块化鉀的補充濃度是10 wt% ,埃的 補充濃度則是1 〇 wt% 。 如先前所述之申請人的構想,由於實際操作時是持續 採用具有特定型號或規格,且漸捲收成圓筒形之長條狀 PVA膜,因此在不同時間點下所染製之PVA膜應具有相同 之厚度、寬度,且質地上亦應沒有差異,故就「該PVA膜 穿經該染槽中之染液而被染色的被染色量」而言,其實可 更為簡化地單獨以「PVA膜穿經該染槽中的長度」來直接 表示。因此,本發明中,較佳地且所示範者,該量測單元 是一計米器。而該計米器是可裝設在該輸送單元上,例如 裝設在將該PVA膜帶入該染槽内之一滾輪組上,而該PVA 膜經過該滾輪組後,進入該染槽内以被染色;藉此,該計 12 200807208 米的記錄值所顯+ & ^ 旦 斤,4不的,即可對應表示為PVA膜之被染色 里。.而§然於實務操作上, 未态亦可被設置在他處, ^記錄值1是依該PVA膜之被染色量而定的該量測單元 旦仏、疋被轉化為決定該㈣中染液f再被供應多少 里之補充液的一主要參考依據。The dye component of the replenishing liquid of the replenishing unit is determined according to the material of the optical material used by the manufacturer and the purpose for which it is desired; the optical material is a PVA film as an example, and the composition of the dye in the corresponding dyeing liquid is matched. (Iodine, potassium iodide, boric acid), preferably, the dye component of the replenishing liquid of the replenishing unit contains potassium iodide and iodine. When the replenishing liquid is added to the dyeing liquid in the dyeing tank, potassium iodide and iodine will form a plant for dyeing the pvA film according to the following chemical reaction formula: KI-KH-, plant +12 (one) 13 one by the above chemical reaction formula It is known that the main purpose of using potassium iodide is that it can release iodide ions in solution. Therefore, in actual practice, other compounds capable of releasing iodide ions can be substituted for potassium iodide. For example, hydrogen iodide (HI), lithium iodide (iithium i〇dide, Lii), sodium iodide (Sodium iodide) can be used. , Nal) 'zinc i〇dide (z仏), moth chain (alumimim iodide, A1I3), lead iodide [(1) iodide^!), lead(II) iodide (Pbl2)], copper iodide (1) (c〇pp(1) iodide, Cul), barium iodide (Bal2), calcium iodide 11 200807208 (calcium iodide, Cal2), tin filling (tin(II) iodide, S11I2; tin(IV) iodide( SnI4)], titanium (titanium(II) iodide, Til2; titanium(III) iodide, Til3; titanium(IV) iodide, Til4], and iodized diamond (cobalt(n) iodide, C0I2); Hydrogen, bulk, sodium molybdenum, and zinc telluride are considered to be preferred. The dye concentration of the replenishing liquid of the replenishing unit is not particularly limited and may vary depending on the needs of the manufacturer or the type of optical material to be applied. In the present invention, when the dye contains potassium iodide and iodine, preferably, the supplementary concentration of potassium molybdenum is between 5 wt% and 50 wt%, based on the weight of the replenishing liquid of the replenishing unit. The supplemental concentration is between 5 wt% and 90 wt%; more preferably, the supplemental concentration of potassium iodide is between 6 wt% and 30 wt%, and the supplemental concentration of iodine is between 6 wt% and 50 wt%; As exemplified in a specific example of the present case, the supplementary concentration of bulk potassium is 10 wt%, and the supplementary concentration of angstrom is 1 〇 wt%. As previously stated by the Applicant, since the actual operation is to continuously use a long PVA film having a specific model or specification and being rolled into a cylindrical shape, the PVA film dyed at different time points should be It has the same thickness and width, and there should be no difference in texture. Therefore, in terms of the amount of dyed dyed by the PVA film passing through the dye liquor in the dyeing tank, it can be simplified more simply. The length of the PVA film passing through the dyeing tank is directly indicated. Therefore, in the present invention, preferably and as an example, the measuring unit is a meter. The meter can be installed on the conveying unit, for example, the PVA film is brought into a roller group in the dyeing tank, and the PVA film passes through the roller group and enters the dyeing tank. In order to be dyed; thereby, the recorded value of the meter 12 200807208 meters is + & ^ 斤, 4, which can be correspondingly represented as the dyed PVA film. And in the practical operation, the unstate can also be set elsewhere, ^ record value 1 is determined according to the amount of dyed PVA film, the unit is converted into the decision (4) A major reference for the replenishment of the dye solution f is how much it is supplied.
=控鮮元亦未有特殊限制,只要能達❹前所述之 一^接單元’並依據該記錄值來操控該補充單 :Ϊ:充液供應至該染槽的量,以使該染槽内之染液的染 料痕度維持在該適當濃度範圍内」目的即可。因此,本發 明中較佳地’該控制單元是包括有擇自於以下所構成之 馬達& 制器、PID 控制器(Proportional-integral- differential C〇ntr〇Uer)、PI ㈣丨J 器' (pr〇P〇ni〇nal-integral C〇ntr〇ller),以及 DCS 控制器(叫制 _tribution sysiem 議(邊〇 m錄本案之—具體财所示者,該控 制單元是馬達控制器’其是用以操控該補充單元之流量閥 的開口大小,而至於在§亥記錄值為何值時,該控制單元需 將該補充單s調控至什麼程度,以使適量的補充液被供應 至該染槽内,則皆視廠商所累積之製程實務經驗,自行決 定如何設定相關操作參數。 進一步地,為使該染槽中染液的染料濃度能被調控地 更精準,本發明染料自動偵測回饋裝置更包含有__電連 接於該控制單元並用以探測該染槽内染液之染料濃度的監 控單元,以及一電連接於該監控單元並對該染液提供一評 估值之评估單元,該監控單元是預設有一監控範圍,該評 13 200807208 估單元則預設有-評估範圍,當該評估值超過該評估範圍 將啟動該監控單元對該染液進行染料濃度之㈣而獲 仔一&控值;若該監控值超過該監控範圍時,則該控制單 元得以㈣該監控值來操控該補充單元之補充液供應至該 *槽的以使該染槽内之染液的染料濃度維持在該適當 濃度範圍内。 田 有關該評估單元之評估方式,熟習此技藝之人士可利 用本案所例7F之「$測_偏光板(即PVA膜與薄臈黏 合後而成)的光透過率」,來評估染料濃度。而該監控單㈣ 疋可猎由染液的物理特性(例如濃度、密度、導電率),來旦 測該木液中染料的濃度;於本發明中所例示者,是透過量 測该染液之密度而獲知其染料濃度。 - 、/關於以切估單疋與監控單元來輔助該補充單元釋出 $當補f液量至該染液中,以維持其適當之染料濃度的概 念,在是台灣專利證書號M258291之專利案並未曾明言或 t所曰不再者’由於濃度滴定計偵測濃度時所需的操作 1 守間過長且須耗費其他相關化學藥品:亦不符合本發明所 而口此並不考慮以—濃度滴定計來作為該監控單元,但 錄可直接或間接地評估該染液中之染料濃度(例如; 染液之導電率、宓洚、沾W ^ *度)的儀益,於本發明中是容許作為該於 控m未予纽。㈣地,《控單元是擇自於以; 所構成之群組㈣測器:導電率計、液體密度計 、超音波濃度計,芬目古帝4 e ^ &t f及具有%磁感應線圈的位向差濃度古十 於本發明中所示範者,該監控單元是—液體密度計:= 14 200807208 5平估早7〇則疋'吸光光度计’繼而配合該補充單元之運作 ,以使該染液之染料濃度被控制在12濃度為介於〇 〇 i 2 wt% 〜0.018 wt% (即 〇_〇15 wt% ± 0.003 wt% )之間,κΐ 濃度則是 為介於 0.4 wt% 〜0_6 wt% (即 〇·5 wt% ± 0.1 wt% )之間,且 所染出之PVA膜的光透過率得以控制在64-66%之間。 .透過本發明染料自動偵測回饋方法暨染料自動偵測回 饋I置’即元全不需依賴「取樣滴定」程序來判斷該補充There is no special restriction on the control element, as long as it can reach the one of the previous units and control the supplement according to the recorded value: Ϊ: the amount of liquid supplied to the dyeing tank, so that the dyeing The dye trace of the dye liquor in the tank is maintained within the appropriate concentration range. Therefore, in the present invention, the control unit preferably includes a motor & controller, a PID controller (Proportional-integral- differential C〇ntr〇Uer), and a PI (four) 丨J device. (pr〇P〇ni〇nal-integral C〇ntr〇ller), and the DCS controller (called _tribution sysiem (the side of the 录 〇 录 录 录 —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— It is the opening size of the flow valve for manipulating the supplemental unit, and as to the value of the value of the record, the control unit needs to regulate the supplemental sheet s to such an extent that an appropriate amount of replenishing liquid is supplied to the In the dyeing tank, the manufacturer's accumulated process experience is used to determine how to set the relevant operating parameters. Further, in order to make the dye concentration of the dyeing solution in the dyeing tank more precise, the dye detection of the present invention is automatically detected. The feedback device further includes a monitoring unit electrically connected to the control unit for detecting the dye concentration of the dye liquor in the dyeing tank, and an evaluation unit electrically connected to the monitoring unit and providing an evaluation value for the dyeing liquid. The monitoring unit is preset with a monitoring range. The evaluation unit of the 2008/0707208 is pre-set with an evaluation range. When the evaluation value exceeds the evaluation range, the monitoring unit will start the dye concentration of the dye solution (4). a & control value; if the monitored value exceeds the monitoring range, the control unit can (4) the monitored value to manipulate the supplemental liquid of the supplemental unit to supply the dye to the * tank to make the dye liquor in the dyeing tank The concentration is maintained within the appropriate concentration range. For those who are familiar with the evaluation unit, those skilled in the art can use the light of the "Measurement _ polarizing plate (that is, the PVA film and the thin enamel) after the 7F of the present case. The transmittance is used to evaluate the dye concentration. The monitoring sheet (4) can be used to test the concentration of the dye in the wood liquor by the physical properties (such as concentration, density, conductivity) of the dye liquor; as exemplified in the present invention The dye concentration is obtained by measuring the density of the dye solution. - / / about the single unit and the monitoring unit to assist the supplement unit to release the amount of liquid to the dye solution to maintain Appropriate dyeing The concept of concentration, in the patent case of Taiwan Patent Certificate No. M258291, has not been stated or is no longer required. 'The operation required for the concentration titration to detect concentration is too long and requires other related chemicals: Nor does it conform to the present invention. The concentration titrator is not considered as the monitoring unit, but the concentration of the dye in the dye solution can be directly or indirectly evaluated (for example, the conductivity of the dye solution, 宓洚, In the present invention, the benefit is not allowed as the control m. (4), the control unit is selected from the group; the group (four) detector: conductivity meter, Liquid densitometer, ultrasonic concentration meter, Fengu Gudi 4 e ^ & tf and a parallax concentration with a % magnetic induction coil, which is exemplified in the present invention, the monitoring unit is - liquid density meter: = 14 200807208 5 flat estimate 7 〇 疋 'absorbance photometer' and then cooperate with the operation of the supplement unit, so that the dye concentration of the dye solution is controlled at 12 concentrations between 〇〇i 2 wt% 〜 0.018 wt% (ie 〇_〇15 wt% ± 0.003 wt%), κΐ concentration is Between 0.4 wt% and 0_6 wt% (ie 〇·5 wt% ± 0.1 wt%), and the light transmittance of the dyed PVA film is controlled between 64-66%. Through the dye detection automatic feedback method and the dye automatic detection feedback I, the element does not need to rely on the "sampling titration" program to judge the supplement.
液之補充量與被提供的時機,而省下檢測用化學品之長久 且大量的消耗,非常的經濟實惠,且同時避免因進行「取 樣滴定」程序而屢次因時間差以致於無法精準地掌控染液 中染料濃度之問題,因此當可使各時間點所染製出之光學 材料的品質具一致性,而可提昇後續產品良率,種種優點 皆十分符合當前本業界之需求,而可為廠商創造更大的商 業利益。 【實施方式】 本發明將就以下一實施例來作進一步說明,但應瞭解 的疋,忒貫施例僅為例不說明之甩,而不應被解釋為本發 明實施之限制。 ’要注意的是,在以下 法之各操作步驟是在室 另’在本發明被詳細描述之前 的說明内容中,若無特別說明,方 溫下進行。 Μ品暨#用器材 下面的實施例係使用下列化學品及設備進行: ΚΙ :由智利SQM公司出品。 15 200807208 2· ··由智利SQM公司出品。 3· H3B〇3 ··由美國us B〇rax公司出品。 4· PVA臈:由日本Kuraray公司出品,型號為。 5.計米器:由日本三菱公司出品,型號為並以q系列 PLC軟體進行計算。 6·流量閥:由日本YOKOGAWA公司出品。 7·馬達控制器:由曰本三菱公司出品,型號為㈣列。The replenishment of the liquid and the timing of the supply, while saving the long-term and large consumption of the detection chemicals, is very economical, and at the same time avoids the repeated time control due to the time difference due to the "sampling and titration" procedure. The problem of the concentration of the dye in the liquid, so that the quality of the optical material dyed at each time point can be consistent, and the yield of the subsequent product can be improved, and all the advantages are in line with the current needs of the industry, and can be a manufacturer. Create greater business benefits. The present invention will be further described in the following examples, but it should be understood that the examples are not intended to be construed as limiting. It is to be noted that the respective steps in the following methods are in the room and the description before the present invention is described in detail, unless otherwise specified, at a temperature.暨品及#用设备 The following examples are carried out using the following chemicals and equipment: ΚΙ : Produced by SQM, Chile. 15 200807208 2· ·· Produced by SQM, Chile. 3· H3B〇3 ··Is produced by US company B〇rax. 4· PVA臈: produced by Japan Kuraray Company, model number. 5. Meter meter: produced by Mitsubishi Corporation of Japan, model number and calculated by q series PLC software. 6. Flow valve: produced by Japan YOKOGAWA company. 7. Motor controller: Produced by Sakamoto Mitsubishi Corporation, model number is (4).
8·吸光光度計:由日本日立公司出品,型號為仏侧。 9·液體密度計:由日本橫河株式會社(γ〇κ ,型號為DM8C。 j ° <^MM> 、九本發明染料自動偵測回饋方法,是在一如圖丨所示之 染色裝置1内,藉由一裝設在其上的染料自動偵測回饋裳 置來實施。而為利於說明’在圖1中所示之各元件的尺寸 暫不依實際比例繪製。 ' 該染色裝置1是欲用以將一作為光學材料之PVA膜2 加以染色,其包含有-長度為5公尺且容積為觀的染槽 u,及一包括有兩滾輪組121、122之輸送單元12 ;其中, 該滾輪組121是用以將待染色之pvA膜2輪送入該染槽^ 内,該滾輪組122則是用以將染色完畢之pvA膜2帶離該 染槽11,而該PVA M 2之延伸倍率是為5 5倍,移:速‘ 為 2M/min 〇 、該染槽Η内是容置有500公升之供該PVA膜2穿經的 杂液111,其含有〇.〇15 wt%的h、〇 5 wt%的幻,以及〇 2 16 200807208 wt%的H3:b〇3,其餘部分則為水,並控溫於3〇〇c ,·其中, /朵液111之調配方式為本業界中極為熟知的知識,在此不 予贅述。在被染色作業中,該染液⑴之l2濃度是欲被控 制在介於 0.012 wt% 〜〇·〇ΐ8 wt% (即 〇〇15 ± 〇〇〇3 械 % )之間的範圍,〇濃度則是欲被控制在介於〇 4〜〇 6 (即〇·5 wt% ± 〇1 wt% )之間的範圍。 而當該PVA膜2離開該染色裝置1後,將繼續經過後 續之種種程序,最後與TAC進行上下貼合而形成_偏光板 。然本發明主要是就該PVA膜2之被染色作業時之染液 中杂料濃度的維持’進行相關探討,其餘部分則非為本 %明所欲闡述之範圍’故該pVA m 2在染色處理之後的種 種程序,在此不予贅述。 ::料自動偵測回饋方法所包含之步驟為:量測步驟 、補充步驟,以及評估步驟。 該量測步驟是用以量測 尸斜處 里判忑PVA膜2之被染色量,而獲 付一對應之記錄值, 己錄值傳迗至一控制單元4。而 該補充步㈣是以該控解元 控-含有補充液〜 “于狀t己錄值,來調 地提供至:ΐΓ 充單元5,使其將該補充液51適度 /、至遠乐槽11内,而使豆 度控制在_適 /、内之4 111中’染料的濃 U田的/辰度範圍内。古玄臣e批半 元7評估染製完成並i_TAC膜;驟疋以一評估單 2,之光透過率 、 膜貼5後而獲得之-偏光膜 干 刊断其所獲得之一士采/士 /古e π丄 一評估範圍,若η 矸估值疋否超出所預定之 右疋’則啟動該監控單元8,以祐甘θ t 液m之染料濃 * 以使其置測該染 其亦超過一預定之監控範圍,則將該 17 200807208 監控值傳送至該控制嚴 控值而調控該補充=:4’以使該控制單元4能依據該監 至該染槽心而 濃度範圍内。 w夜11中染料的濃度控制在該適當 回饋方法是可藉由本發明所另提供之 調控濃度之==裝置3來進行’而在本實施例中,欲 。工a木;成为為破與填化鉀’硼酸則非為欲調控者 該染料自動偵測回饋穿詈 ,其包含—補充單元5 疋裝設在該染色裝置1上 置測單元6、-控制單元4、— 汗估早兀7,以及一監控單元8。 、、於:几5包括有一容納一補充液511之補充槽51 路:及用補充槽51與該染色震置1之染槽”的補充管 豆中,、、控制該補充液511之輸出量的流量間53; 溶液。’"補充液5U是為含有10㈣耵與10 wt% l2之水 上!量測單元6是一計米器,其是裝設在該滾輪組⑵ —’猎此記錄該滾輪組121輸送之隱膜2的長度而得到 :錄值。在本案中是將該滾輪、纪ΐ2ι之位置與該染槽I】 木=11的水位,設計為當該PVA膜2穿經該滾輪組 &即進人該染液111 ~,開純染,因此該記錄值 ’、可視為該染液;m所染色過之該pVA膜2的被染量。 該評估單元7是一分光光度計,裝設在遠離該滾輪組 處以偵測之後獲得之偏光膜2,的光透過率,並於每次 18 200807208 111之 並為-111中 的偵測皆獲得一評估值,藉此評估該染槽11内染液 染料濃度。《控單元8是電連接於該評估單元7, 液體岔度汁,其裝設在該染槽u上並可伸入該染液 以量測其染料濃度。 。該控制單元4是一馬達控制器,其一併電連接於該補 充單元5、量測單元6及監控單元8。該控制單元*主要是 依據該置測單元6所提供之記錄值,而操控該流量閥53的 開口大小和開啟時間長短,於是適量的補充液511將會自該 補充槽51内,沿著該補充管路52流入該染槽n中,並與 該染液ill均勻混合,藉此使得該染液ln内的κι與匕含 量得以被控制在所欲的範圍内。 本务明疋依各項操作參數(例如染液j丨丨之溫度與尺夏、 之原始濃度、補充液之成分與濃度、染槽長度、染液體積 、PVA膜2之寬度與厚度、PVA膜2之行進速度或延伸倍 率,以及與該染液ni接觸的時間長短等),並綜合申請人 以往之實務經驗累積,而統整出本實施例中該補充單元5 與量測單元6之對應操作模式;即,該流量閥53是持績被 開啟的,並使得該補充液511是以當該PVA膜2每行進i 公尺時流出1毫升以添加至該染槽U内;而在本實施例中 ’亦可遥擇性地配合使用一设置在該流量閥5 3處的定量系 浦(圖未示),以辅使補充液5Π能更精準地被供應至染槽u 中。而經由申請人確實量測經上述方式而補充過之染液的 染料濃度,得知KI為0.5wt% ’I則為〇〇15wt% ,其等濃 度皆分別落在所規劃之〇·4 wt%〜〇.6 wt% ,與〇012 wt% 19 200807208 〜0.018 wt%的範圍内。 因此,一熟習此技藝者當亦可依據其經驗與所界〜、 =數,自行規劃該補充單元5與量測單元6之間:: 的對應運作,例如可使該流量閥53配合 " 联2之行谁、击 度而閒歇性地開啟。 另一方面,當該評估單元7所獲得之評估值超 之評估範圍時,將會啟動該監控單元8以辅助㈣ 來調整該補充單元5之補紐511釋出量。例如,4 值是欲***控在64·66%之範圍,而若該評估值達^: 時,則啟動該監控單^量測該染液⑴之染料濃度是否^ 於12濃度介於0.012wt%〜咖wt%,ΚΙ濃度介於㈠赠 %〜0·6 Wt%之範圍内1所獲得之監控值亦超出此等範 ’則处控值將傳輸至該控制單元4,以使其操控原本 ,之流量閥53將再略增其開啟程度,直至該監控單元^ 置測之染料濃度值降低至66%以下。 類似地,當該評估單元7之評估值低於州以下時, 則==控單元8量測該染液lu之染料濃度是否落於 2…於0.012 wt%〜0·018 wt%,KI濃度介於。切 —%之範圍内,若所獲得之監控值亦超出此等範圍, 祕控值將傳輸至該控制單元4,以使其操控原 啟 m閥53料略減㈣啟程度,直至該監控單元 測之染料濃度值降低至64%以上。而由於該評估單元7斑 監控單元8之偵測速度極快,因此該染液⑴旬噥 度被適當控制之結果,將可幾乎同步地自屆時單^辰 20 200807208 與監^單元8所獲得之評估值與監測值而彰顯。 紅合以上說明,本發明染料自動偵測回饋、 染料自動偵測回饋裝置,是藉由一光學材 ’’以及 之被染色量,並杜人申社 1 PVA膜) 私、九 申靖人先珂累積的實務經驗,來作成 對Γ液提供補充液的考量,因此,本發明方法 不需要藉由冗長之「滴定作業」來確認該染液上f:置當 濃度,因而大幅省下相關化學用品之耗 木枓的 瑞令你I 才成本’與進行續 ^ 而之工日t成本,就可達到即時地將該染 染料濃度調控在所欲之範圍内 之 .^ 图㈧而右將本發明裝置進一舟 用-可輔助調控該該染液中染料的濃 ;監控單元8,則將可立即性地確認該染液⑴”;:: 又疋否在所欲範圍内’因此其將是為 = 調控模式。 i W木抖/辰度 4::明之方法裝置已然針對本業界原本之困擾提供適 …不而特別的儀器或設備就能進行, 而知作上亦非常方便,更可省下大量之耗材與卫丁, 因而有助於為相關業者創造更大的商業利益。 惟以上所述者,僅為本發明之較佳實施例而已, -以此限定本發明實施之範圍,即大凡依本發 : 乾圍及發明說明内容所作之簡 屬本發明㈣涵蓋4_ 的4政變化與修飾,皆仍 【圖式簡單說明】 圖i是-示意圖,說明本發明染料自動偵測回饋裝置 之一較佳實施射,所設置之各構件的相對位置關係。 21 200807208 【主要元件符號說明】 3 染料自動偵測回 52 補充管路 饋裝置 53 流量閥 4 控制單元 6 量測單元 5 充單元 7 評估單元 51 補充槽 8 監控單元 511 補充液 228. Absorbance photometer: Produced by Hitachi, Japan, model is the side. 9. Liquid Density Meter: A method of automatic detection and feedback of the dye of the invention by Yokogawa Co., Ltd. (γ〇κ, model DM8C. j ° <^MM> In Fig. 1, the dye is automatically detected by a dye disposed thereon, and the size of each component shown in Fig. 1 is not drawn to the actual scale. It is intended to dye a PVA film 2 as an optical material, which comprises a dyeing tank u having a length of 5 meters and a volume, and a conveying unit 12 including two roller sets 121 and 122; The roller set 121 is used to feed the pvA film 2 to be dyed into the dyeing tank, and the roller set 122 is used to carry the dyed pvA film 2 away from the dyeing tank 11, and the PVA M 2 The stretching ratio is 5 5 times, and the moving speed is 2 M/min. The dyeing tank is filled with 500 liters of the liquid 111 for the PVA film 2 to pass through, which contains 〇.〇15 wt. %h, 〇5 wt% illusion, and 〇2 16 200807208 wt% of H3:b〇3, the rest is water, and temperature is controlled at 3〇〇c,·where, / The blending method of 111 is a well-known knowledge in the industry, and will not be described here. In the dyeing operation, the concentration of the dye solution (1) is intended to be controlled between 0.012 wt% and 〇ΐ·〇ΐ8 wt% ( That is, the range between ±15 ± 〇〇〇3 mechanical %), the enthalpy concentration is to be controlled between 〇4~〇6 (ie 〇·5 wt% ± 〇1 wt%). When the PVA film 2 leaves the dyeing device 1, it will continue to go through various subsequent processes, and finally, it is bonded to the TAC to form a polarizing plate. However, the present invention mainly focuses on the dyeing operation of the PVA film 2. The maintenance of the concentration of the miscellaneous materials in the dye liquor is discussed in the relevant part, and the rest is not the scope of the description of the %. Therefore, the procedures of the pVA m 2 after the dyeing treatment are not described here. The steps of the detection feedback method include: a measurement step, a supplementation step, and an evaluation step. The measurement step is used to measure the amount of dyed PVA film 2 in the slanting portion, and obtain a corresponding amount. Recording the value, the recorded value is passed to a control unit 4. The supplementary step (4) is the control solution Control - contains replenishing solution ~ "In the case of the value of the recorded value, to adjust the ground to provide: ΐΓ charge unit 5, so that the replenishing liquid 51 moderate /, to the far music trough 11, so that the degree of bean control /, within the 4 111 'dense of the concentrated U field / Chen range. Gu Xuanchen e batch half 7 evaluation dyeing completed and i_TAC film; After the post 5, the polarizing film is published, and the evaluation range is obtained. If the η 矸 valuation does not exceed the predetermined right 疋, the monitoring unit 8 is activated. , in order to make the dye more than a predetermined monitoring range, the 17 200807208 monitoring value is transmitted to the control strict control value to regulate the supplement = 4' In order to enable the control unit 4 to be within the concentration range of the dyeing tank. The concentration of the dye in the night 11 is controlled so that the appropriate feedback method can be carried out by the concentration control unit == 3 provided by the present invention, and in the present embodiment, is desired. Work a wood; become the broken and filled potassium 'boric acid, then the dye is not intended to regulate the dye automatic detection feedback, the inclusion - supplement unit 5 is installed on the dyeing device 1 on the test unit 6, - control Unit 4, - Khan estimated 7, and a monitoring unit 8. And: 5 includes a supplementary tank 51 for accommodating a replenishing liquid 511: and a refilling tube for replenishing the dyeing tank with the replenishing tank 51 and the dyeing chamber 1 to control the output of the replenishing liquid 511 The flow rate between the 53; solution. '" replenishing solution 5U is for water containing 10 (four) 耵 and 10 wt% l2! The measuring unit 6 is a meter, which is installed in the roller group (2) - 'hunting this record The length of the hidden film 2 conveyed by the roller set 121 is: recorded value. In the present case, the position of the roller, the ΐ 2 ι and the water level of the dyeing tank I] wood = 11 is designed to pass through the PVA film 2 The roller group & that is, the dyeing liquid 111 ~, the pure dyeing, so the recorded value ', can be regarded as the dyeing liquid; m dyed the pVA film 2 dyed amount. The evaluation unit 7 is a The spectrophotometer is installed at a distance from the roller group to detect the light transmittance of the polarizing film 2, and an evaluation value is obtained for each detection of 18 200807208 111 and -111. The concentration of the dye in the dyeing tank 11 is evaluated. The control unit 8 is electrically connected to the evaluation unit 7, and the liquid concentration juice is installed on the dyeing tank u. And the dyeing liquid can be inserted to measure the dye concentration. The control unit 4 is a motor controller, which is electrically connected to the supplementary unit 5, the measuring unit 6 and the monitoring unit 8. The control unit* is mainly According to the recorded value provided by the detecting unit 6, the opening size and the opening time of the flow valve 53 are manipulated, so that an appropriate amount of the replenishing liquid 511 will flow from the replenishing tank 51 along the supplementary line 52. The dyeing tank n is evenly mixed with the dyeing liquid ill, so that the content of κι and 匕 in the dyeing liquid ln can be controlled within a desired range. The temperature of the liquid j与, the original concentration of the summer, the composition and concentration of the replenishing liquid, the length of the dyeing tank, the volume of the dyeing liquid, the width and thickness of the PVA film 2, the traveling speed or the stretching ratio of the PVA film 2, and The length of time that the dyeing liquid ni is contacted, and the cumulative practical experience of the applicant, and the corresponding operation mode of the supplementing unit 5 and the measuring unit 6 in the embodiment are integrated; that is, the flow valve 53 is held The performance is turned on and makes the replenishment liquid 511 Therefore, when the PVA film 2 travels 1 millimeter per meter, it is added to the dyeing tank U; in the present embodiment, it can also be used in a selective manner to be disposed at the flow valve 53. Quantitative system (not shown), in order to make the replenishing solution 5 更 more accurately supplied to the dyeing tank u. The applicant actually measured the dye concentration of the dyeing liquid supplemented by the above method, and learned that KI For 0.5 wt% 'I, it is 15 wt%, and its equivalent concentrations fall within the range of planned 〇·4 wt%~〇.6 wt%, and 〇012 wt% 19 200807208 ~0.018 wt%. Therefore, a skilled person can also plan the corresponding operation between the supplemental unit 5 and the measuring unit 6 according to his experience and the bounds, and the number, for example, the flow valve 53 can be matched with " Whoever, the line of the 2nd, hits and breaks open. On the other hand, when the evaluation value obtained by the evaluation unit 7 exceeds the evaluation range, the monitoring unit 8 is activated to assist (4) to adjust the release amount of the supplemental unit 5 of the supplementary unit 5. For example, the value of 4 is to be manipulated in the range of 64.66%, and if the evaluation value reaches ^:, the monitoring unit is started to measure whether the dye concentration of the dye solution (1) is 12 or not at a concentration of 0.012 wt. %~咖wt%, ΚΙ concentration is in the range of (1)%~0·6 Wt%, and the obtained monitoring value also exceeds these specifications, then the control value will be transmitted to the control unit 4 for its manipulation. Originally, the flow valve 53 will slightly increase its opening degree until the dye concentration value measured by the monitoring unit is reduced to 66% or less. Similarly, when the evaluation value of the evaluation unit 7 is lower than the state, then the == control unit 8 measures whether the dye concentration of the dye solution lu falls within 2...at 0.012 wt%~0·018 wt%, KI concentration Between. Within the range of cut-%, if the obtained monitoring value also exceeds the range, the secret control value will be transmitted to the control unit 4, so that it can slightly reduce (4) the degree of the original open m valve 53 until the monitoring unit The measured dye concentration value was reduced to more than 64%. Since the detection speed of the spot monitoring unit 8 of the evaluation unit 7 is extremely fast, the result of the dye liquid (1) being properly controlled can be obtained almost synchronously from the time of the single time 20 200807208 and the monitoring unit 8 The evaluation value and the monitoring value are highlighted. According to the above description, the automatic dye detection and feedback automatic dye feedback device of the present invention is dyed by an optical material, and the amount of dyed by the Du Ren Shenshe 1 PVA film is private, and the nine Shen Jingren first珂 Cumulative practical experience to make considerations for the supply of replenishing liquid to the sputum. Therefore, the method of the present invention does not require the use of a lengthy "titration operation" to confirm the f: concentration of the dye solution, thereby greatly reducing the relevant chemistry. If you use the cost of the product, you will be able to control the concentration of the dye in the desired range. ^ Figure (8) and right The invention device is used for further use - to assist in regulating the concentration of the dye in the dye liquor; the monitoring unit 8 will immediately confirm the dye liquor (1)";:: whether or not it is within the desired range 'so it will be For = control mode. i W wood shake / Chen 4:: Ming method device has been able to provide the appropriate equipment or equipment for the industry's original troubles, but also very convenient, but also save A lot of consumables and Weiding, so it helps The above is only a preferred embodiment of the present invention, and the scope of the present invention is limited to the scope of the present invention, that is, according to the present invention: The present invention (4) covers 4_4 political changes and modifications, all still [schematically illustrated] Figure i is a schematic diagram illustrating one of the dye automatic detection and feedback devices of the present invention, preferably arranged 21 200807208 [Main component symbol description] 3 Automatic dye detection back 52 Supplementary line feed device 53 Flow valve 4 Control unit 6 Measuring unit 5 Charging unit 7 Evaluation unit 51 Supplementary tank 8 Monitoring unit 511 Replenishing liquid twenty two