200819272 0950254 22021twf.doc/e 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種印刷方法，且特別是有關於一種 模内裝飾（In Mold Decoration，IMD)印刷方法。 【先前技術】 一般而δ，杈内裝飾印刷方法是應用於塑膠殼體之裝 飾加工。舉例來說，行動電話之圖案化塑膠殼體即是利用 模内裝飾印刷方法所製作出之產品。請參考目1Α至圖 1C ’圖1Α至圖1C繪示習知―種模内裝料刷方法的流 程剖面圖。習知技術之模内裝飾印刷方法包括下列步驟： 了如圖1Α所示，將一圖案化薄膜η〇置配設於一模 ，〇之内似20a，其中圖案化薄膜11〇具有—油墨圖案 接者，如圖1B所示，自模具120之一澆注口 124注 使得塑料13〇充滿模穴 C. 固化之後，移除模具㈣與圖案化_ιι〇(如圖 之油；二=模内裝飾印刷方法，其中圖案化薄膜 土'圖木112轉印至固化之塑料13〇，上。 然而，在將圖案化_ U 〇貼附於 由於模具内壁ma之部份表面有較大/、= 120a日守 膜U0無法平整地貼附於模具内壁12。二= 程中產Γ皺上Ξ二 容易於塑料130之注入過 產生皺接，圖案化缚膜之油墨圖案112即無法平整地 5 200819272 0950254 22021twf.doc/e 轉印至固化之塑料130,，導致模内裝飾印刷方法所製作之 產品良率（外觀）不佳。 為解決圖案化薄膜容易於塑料之注入過程中產生敗 摺，另一習知技術會先將模具内之圖案化薄膜烤熱軚化之 後，再將塑料注入模穴中。其中，烤熱軟化後之圖案化薄 膜能平整地貼合於模具内壁，使得圖案化薄膜不易在塑料 注入過程中產生皺摺。此外，習知技術亦提出調降塑料注BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing method, and more particularly to an In Mold Decoration (IMD) printing method. [Prior Art] Generally, the δ, 杈 interior decoration printing method is applied to the decoration processing of a plastic case. For example, a patterned plastic housing for a mobile phone is a product made using an in-mold decorative printing method. Referring to Fig. 1 to Fig. 1C', Fig. 1A to Fig. 1C are schematic cross-sectional views showing a conventional method of loading a brush in a mold. The in-mold decorative printing method of the prior art comprises the following steps: As shown in FIG. 1A, a patterned film η is disposed in a mold, and the inside of the crucible is like 20a, wherein the patterned film 11 has an ink pattern. As shown in FIG. 1B, the pouring port 124 from one of the molds 120 is filled so that the plastic 13 is filled with the cavity C. After curing, the mold (4) and the patterned _ιι〇 are removed (as shown in the figure; A decorative printing method in which a patterned film soil 'Fig. 112 is transferred to a cured plastic 13 〇 on top. However, the pattern _ U 〇 is attached to a part of the surface of the mold inner wall ma having a large /, = On the 120a day, the film U0 can not be flatly attached to the inner wall of the mold 12. Two = the middle of the crucible is easy to be wounded by the plastic 130, and the ink pattern 112 of the patterned bond film cannot be flattened. 5 200819272 0950254 22021twf.doc/e Transfer to the cured plastic 130, resulting in poor yield (appearance) of the product produced by the in-mold decorative printing method. In order to solve the problem that the patterned film is easy to be infused during the plastic injection process, another Conventional technology will first pattern the mold After the film is baked and heated, the plastic is injected into the cavity, wherein the patterned film after the heat softening can be smoothly applied to the inner wall of the mold, so that the patterned film is not easy to wrinkle during the plastic injection process. The conventional technology also proposes to reduce the plastic injection.
入模穴之速度的方式來避免圖案化薄膜在塑料注入過程中 產生皺摺。 值知提的疋，上述二種方式雖能满加改善圖案化薄 膜在塑料注人過程_產生_之問題，但塑料注入模穴之 時間:大幅增加。亦即，產品之製作效率不佳。因此，如 ^衣:印刷方法同時具有較佳之製程效率與產品製 作良率是一重要課題。 【發明内容】 私灶本^明之目的是提供—種模内裝飾印刷方法，其具有 車父t之產品製作良率。 ,、 且右ΐί —目的是提供—種模内裝飾印刷方法，其 具有較佳之製程效率。 刷方ί達ΐίί是其他目的，本發明提出-種模内裝飾印 模且’，S 下列步驟。首先，提供案化薄膜與一 =氣==有圖案，模具具有-模穴、多 ，其中進氣孔以及澆注口與模穴相 6 200819272 0950254 22021twf.d〇c/e 流擠ί=:’=引?氣流，使得塑料被氣 之内辟。 、w吏圖木化溥膜平整地貼附於模具 模具’在®案化_平整地貼附於 Ο 進氣流。：著，使:料。首先，停止自進氣孔引 化薄膜。充滿輪穴。之後，移除模具與圖案 前 料在移除模具與圖案化薄膜之 後 之—實_巾，在錯模具與«化萍膜之 、口又圖木係轉印於固化之塑料上。 π、 自丄本内裝飾印刷方法中，當塑料 壓至圖案化薄膜上，使得;案二=之氣流擠 =。由於圖案化薄膜可平整地貼附於模且之=於模穴 本發明之模内裝飾印刷方法所製作之產壁，因此 =氣較佳實施例是在塑料之注人過時 附於模穴喃，即i二時間來使_化薄膜點 有較佳之製程效率各月私貫施例之模内裝飾印刷方法 易懂為他目一 ，'⑽’亚配合所附圖式’作詳細說 200819272 0950254 22021twf.doc/e 明如下。 【實施方式】 圖2緣示本發明較佳實施例之一種模内裝 、參，，本實施例之模内裝飾印概^ 括下列步驟。^先，執行步驟S1，提供圖案化薄膜與模且， 其中圖案化薄膜具有預設圖案，模具具有模穴、多個進氣 孔三錢注口，+其中進氣孔及洗注口與模穴相通，而圖案 化薄膜配置於模具之内壁。 ’、 接著，進行步驟S2,使塑料自洗注口注入模穴。 自進氣孔引進氣流，使得塑料被氣流繼 圖木桃，亚使圖案化薄膜平整地貼附於模且之内辟。 ^本ΛΙΓ/由於__膜是平整地_於模具“ ^ ^=膜不+會於塑料之注入過程中產生敏摺），因此 呈’注入模穴之塑料與圖案化薄膜之間即 合關係，進而使得本實施例之模内裝飾印刷 了解上i之^有良好之品質與外觀。為能更清楚地 太法’下文將以流程剖面圖來對 本貝她例之_裝飾印刷方法作詳細說明。 ㈣為本發日她佳實施例之—種模内裝 :化==呈剖面圖。首先，如圖3A所示，提供圖 荼化溥艇310與模呈320。μ^ 膜犯與預設圖案;、14， ^圖案化薄膜31〇f括塑膠 W刷或疋，雜印刷方法而形成於塑膠膜312上。模具320 200819272 0950254 22021twf.doc/e 則具有模穴322、澆注口 324、及多個進氣孔326,其中進 氣孔326及洗注口 324與模穴322相通，而圖案化薄膜 配置於模具320之内壁320a。值得一提的是，在本實施例 中’圖案化薄膜310具有預設圖案314之一面是朝向模具 320之另一侧内壁320b，内壁320b例如是與内壁32〇a相 對應，而上述多個進氣孔326可配設於内壁320b。 在k供圖案化溥膜310與模具320之後，接著使塑料 330自澆注口 324注入模穴322(如圖3B所示）。緊接著， 如圖3C所示，自進氣孔326引進氣流，使得塑料33〇被 氣流擠壓至配置於模具内壁320a上之圖案化薄膜31〇，並 使圖案化薄膜310平整地貼附於模具32〇之内壁32加。詳 細地說，由於模具内壁320a之部份表面有較大之表面曲 率^因此當圖案化薄膜31〇配設於模具内壁3施時 化薄膜31〇與模具内壁遍之間可能會存在一間隙^ 參考圖3A)。此外，由於進氣孔326例如是配設於: 内壁遍相對應之另—内壁遍上，因此自進氣，孔326 引進的氣齡朝向模具_施（目案化_ 3⑻之方 ，動，而注入模穴322之塑料33〇會受到上述氣 : ^圖案化薄膜31〇噴塗。當塑料别 土 版31〇後，塑料330例如會施予圖案化薄膜310 - ^生/ 進而讓圖案化薄膜310平整地貼附於模且32〇之力辟 3广換言之，圖案化薄膜與 壁;:ς 易有間隙存在。 土織之間即不 值付-提的是’本實施例是在塑料330之注入過程中 200819272 0950254 22021 twf.doc/e 同時利用氣流間接地讓圖案化薄膜31〇平整地貼附於模旦 ==:==費時間來使圖案化薄 “同當，案化_ 310平整地貼附於模具内壁320a之後 =::==:自:氣孔刪 d,-,.凡/兩犋八J以之後，如圖3E所示， f ::而隐薄膜之預設圖案314係:===: 被擠屋至圖案化薄膜‘匕上，其中 本發之模内裝二 ==技術’ 地心“整 膜即不易在塑料注入過==績製程時，圖案化薄 圖案化薄膜之間即具有丰注入模穴之塑料與 J佳貫施例之模内裝飾印刷方法所;作之^ 同 10 200819272 0950254 22021twf.doc/e 壁，因此本發明較佳實施例無需額外花費時間來使圖案化 薄膜平整地貼附於模穴内壁。亦即’本發明較佳實施例之 模内裝飾印刷方法有較佳之製程效率。 雖然本發明已以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，當可作些許之更動與潤飾，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】 圖1A至圖1C繪示習知之一種模内裝飾印刷方法的流 程剖面圖。 圖2繪示本發明較佳實施例之一種模内裝飾印刷方法 的流程圖。 圖3A至圖3E繪示本發明較佳實施例之一種模内裝飾 印刷方法的流程剖面圖。 【主要元件符號說明】 110 :圖案化薄膜 112 :油墨圖案 120 :模具 120a :模具内壁 122 :模穴 124 :澆注口 130 ··塑料 200819272 0950254 2202] twf.doc/e 130’ ··固化之塑料 310 ·•圖案化薄膜 312 :塑膠膜 314 :預設圖案 320 :模具 320a、320b :模具内壁 322 :模穴 324 :澆注口 326 :進氣孔 330 :塑料 330’ ：固化之塑料 S :間隙： S1〜S3 :各個步驟The speed of entry into the cavity avoids wrinkles in the patterned film during plastic injection. The value of the above mentioned two methods can fully improve the problem of the patterned film in the process of plastic injection, but the time for plastic injection into the cavity is greatly increased. That is, the production efficiency of the product is not good. Therefore, such as the clothing: printing method has better process efficiency and product production yield is an important issue. SUMMARY OF THE INVENTION The purpose of the private kitchen is to provide an in-mold decorative printing method, which has the production yield of the product of the parent. The purpose of the method is to provide an in-mold decorative printing method which has better process efficiency. The brush is used for other purposes, and the present invention proposes an in-mold decorative stamp and ', S the following steps. Firstly, the film is provided with a pattern of a gas == pattern, the mold has a mold cavity, and more, wherein the air inlet hole and the pouring port and the cavity phase 6 200819272 0950254 22021twf.d〇c/e flow ί=: ' = The air flow is induced, so that the plastic is ventilated.吏 木 木 木 木 木 木 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平 平:, make: material. First, stop the film from the air inlet. Full of round holes. After that, the mold and the pattern pre-removal are removed after the mold and the patterned film are removed, and the mold is transferred to the cured plastic in the wrong mold and the film. In the π, self-decoration printing method, when the plastic is pressed onto the patterned film, the air flow of the case 2 is squeezed. Since the patterned film can be flatly attached to the mold and the wall produced by the in-mold decorative printing method of the present invention, the preferred embodiment of the gas is attached to the mold cavity when the plastic is outdated. , that is, i two times to make the _ film point have better process efficiency. The in-mold decoration printing method of each month is easy to understand for his purpose, '(10) 'Asian cooperation with the drawing' for details 200819272 0950254 22021twf.doc/e is as follows. [Embodiment] Fig. 2 shows an in-mold mounting and a reference in accordance with a preferred embodiment of the present invention. The in-mold decorative printing of the present embodiment includes the following steps. First, step S1 is performed to provide a patterned film and a mold, wherein the patterned film has a predetermined pattern, the mold has a cavity, a plurality of air inlets, and a filling nozzle, and wherein the air inlet and the washing port and the mold The holes are connected, and the patterned film is disposed on the inner wall of the mold. Then, step S2 is performed to inject the plastic into the cavity from the washing nozzle. The airflow is introduced from the air inlet hole, so that the plastic is relayed by the airflow, and the patterned film is evenly attached to the mold and immersed therein. ^本ΛΙΓ/ Since the __ film is flat _ in the mold " ^ ^ = film does not + will produce a sensitive fold during the injection of plastic), so the 'injection between the mold hole plastic and the patterned film In addition, the in-mold decoration printing of the embodiment can be understood to have a good quality and appearance. In order to be more clear, the method will be described in detail in the flow profile view. (4) For the best example of this issue, the model is built-in: the == is a cross-sectional view. First, as shown in Fig. 3A, the image of the rafting boat 310 and the mold is provided 320. μ^ Membrane a pattern; 14, ^ patterned film 31〇f includes a plastic W brush or 疋, and is formed on the plastic film 312 by a miscellaneous printing method. The mold 320 200819272 0950254 22021 twf.doc/e has a cavity 322, a pouring port 324, And a plurality of air inlet holes 326, wherein the air inlet holes 326 and the washing nozzles 324 communicate with the cavity 322, and the patterned film is disposed on the inner wall 320a of the mold 320. It is worth mentioning that in the present embodiment, 'patterning The film 310 has a predetermined pattern 314 whose one side faces the other side inner wall 320b of the mold 320, and the inner wall 3 20b corresponds to the inner wall 32A, for example, and the plurality of air holes 326 may be disposed on the inner wall 320b. After k is used to pattern the ruthenium film 310 and the mold 320, the plastic 330 is then injected into the cavity from the gate 324. 322 (shown in Fig. 3B). Next, as shown in Fig. 3C, an air flow is introduced from the air inlet hole 326, so that the plastic 33 is pressed by the air flow to the patterned film 31〇 disposed on the inner wall 320a of the mold, and The patterned film 310 is flatly attached to the inner wall 32 of the mold 32. In detail, since a part of the surface of the inner wall 320a of the mold has a large surface curvature, the patterned film 31 is disposed on the inner wall of the mold. There may be a gap between the timed film 31〇 and the inner wall of the mold. Referring to FIG. 3A), in addition, since the air inlet hole 326 is disposed, for example, on the inner wall of the other inner wall, the self-intake The gas age introduced by the hole 326 is toward the mold _ Shi (mesh _ 3 (8) square, moving, and the plastic 33 注入 injected into the cavity 322 will be subjected to the above gas: ^ patterned film 31 〇 spray. When the plastic version 31 After the crucible, the plastic 330 is applied, for example, to the patterned film 310. The patterned film 310 is flatly attached to the mold and 32 inches. In other words, the patterned film and the wall are: ς easy to have a gap. Between the soil and the weave is not worth mentioning In the process of injecting plastic 330, 200819272 0950254 22021 twf.doc/e simultaneously indirectly using the airflow to make the patterned film 31 〇 flatly attached to the die ==:== time to make the pattern thin "same, case _ 310 is flatly attached to the inner wall 320a of the mold =::==: From: venting d, -,. Where / after two J J, after, as shown in Figure 3E, f: Set the pattern 314: ===: The house is squeezed into the patterned film '匕, where the mold of the hair is loaded with two == technology 'center', the whole film is not easy to be injected into the plastic == performance process, the pattern Between the thin patterned film, that is, the plastic having a rich injection cavity and the in-mold decorative printing method of the preferred embodiment; the same as 10, 20119272 0950254 22021 twf.doc/e wall, thus the preferred embodiment of the present invention There is no additional time required for the patterned film to be flatly attached to the inner wall of the cavity. That is, the in-mold decorative printing method of the preferred embodiment of the present invention has better process efficiency. While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A to Fig. 1C are flow cross-sectional views showing a conventional in-mold decorative printing method. 2 is a flow chart showing an in-mold decorative printing method in accordance with a preferred embodiment of the present invention. 3A to 3E are cross-sectional views showing the flow of an in-mold decorative printing method in accordance with a preferred embodiment of the present invention. [Major component symbol description] 110: Patterned film 112: Ink pattern 120: Mold 120a: Mold inner wall 122: Mold cavity 124: Pouring port 130 ··Plastic 200819272 0950254 2202] twf.doc/e 130' ··Cured plastic 310 ·• patterned film 312: plastic film 314: preset pattern 320: mold 320a, 320b: mold inner wall 322: cavity 324: pouring port 326: air inlet hole 330: plastic 330': solidified plastic S: gap: S1~S3: each step
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