TWI228460B - In-mold decoration printing and adhering process that prevents ink scouring - Google Patents

In-mold decoration printing and adhering process that prevents ink scouring Download PDF

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TWI228460B
TWI228460B TW92137449A TW92137449A TWI228460B TW I228460 B TWI228460 B TW I228460B TW 92137449 A TW92137449 A TW 92137449A TW 92137449 A TW92137449 A TW 92137449A TW I228460 B TWI228460 B TW I228460B
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plastic film
ink
plastic
mold
printing
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TW92137449A
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TW200520983A (en
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Shr-Hau Tzeng
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Shr-Hau Tzeng
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Abstract

The present invention relates to an in-mold decoration printing and adhering process which reduces manufacturing costs and can prevent the problems of ink scouring and spreading to occur in a high temperature process, comprising a gravure process forming ink patterns printed on a plastic film of the same material as an injection plastic in the gravure manner, an adhering process, a forming process, a punch cutting process, and an injection-molding process. The aforementioned processes enables the high temperature plastic injected not to contact with the ink directly, hence capable of preventing the ink from the occurrence of scouring and spreading under the high temperature condition of the injection process. Therefore, no expensive mold and plastic injection-molding facility are needed, and the ink used can be cheaper, so as to reduce the manufacturing cost.

Description

1228460 玖、發明說明: 【發明所屬之技術領域】 本發明係關於一種防止油墨沖刷之抬+ τ邱〗之棋内裝飾印刷貼合 製程,尤其係指一種可降低製作成本, 一 Λ不且可避免印刷油墨 在咼溫製程時產生油墨沖刷、沒染問韻 木问續之模内裝飾印刷貼 合製程。 【先前技術】 一般的模内裝飾印刷^呈(即一般所謂之工md製程 )多半是應用在塑膝殼體之彩飾加工,如行動電話之塑膠 殼體等即是利用此製程所加以製造者。 圖所示,傳統之IMD模内裝饰印刷製二 5 1 )圖樣以網版印刷方式印刷在可塑型的pc塑膠膜( Polycarbonate film 聚碳酸醋)(5〇)之一側面 I,、再 將該具有油墨(5工)圖樣之可塑型塑膠冑(5 〇 ) 一面 設置在成型模| ( 5 2 )上,以熱壓或高㈣型之方式沖 壓出所奴形狀’將成型模具(5 2 )矛多除後,便將塑膠膜 (5 0 )之多餘部分裁切,將裁切好之可塑型塑膠膜(5 0)再置於射出模具(53)中,於可塑型塑膠膜 )"又有’由墨(5 1 )圖樣之一面射出塑料(5 4 )以包覆 油墨(5 1 )圖樣後,即完成模内裝飾印刷製程。 然而上述之1 M D製程,主要利用PC塑膠膜可塑成 型耐磨耐到、透光性好的特性,產品可比傳統塑膠射 出成型更優良。市場上多為西德拜耳公司之技術,其搭備 之《又備亦回達數億元,因此會造成下游製造廠商之成本支 1228460 J下游廠商之所以受到設備製造廠商之限制主要在於 研發新製程所費不f,且油墨在成型時不能龜裂、且在射 出成型時必須要能耐高溫而不能有因為高溫導致油墨溶解 產士沖刷、渲染之情形發生,因此均不得已的受限於設備 製4廢商之回價位儀器設備(如射出機和模具必須特殊設 计,一般射出機和模具無法使用)和油墨。 又IMD製程使用的pC塑膠膜常用厚度在〜3㈣ ^之間,如此PC冑膠膜本身才具有相當硬度,而能達到 可塑成型之條件,&因如此只能用網版印刷(因為凹版印 刷無法印製於硬的表面之上),、網版印刷所可印製之圖樣 因又到’目解析度低的限制(比較粗),—般只用在印文字 線條簡單的圖案套色。若要印相片類的影$,則印刷 出之圖樣並不精美。% g & 、而且為了防止油墨沖刷,便需用高價 位的特殊油墨。 【發明内容】 本發月人有鑑於此,乃積極進行研究開發,以期可提 供二種能解決上述W缺失之模内裝飾印刷製@,經過不 斷試驗及努力,終於開發出本發明。 、本發明之主要目的在於提供—種可降低製作成本,且 可避免印刷油墨在馬溫製程時產生油墨沖刷、;宣染問題之 模内裝飾印刷貼合製程。 為了達到上述發明目的,本發明乃利用以下之技術手 段予以達成,其中本發明包括有·· 凹版印刷製程,該製程不印在可塑型的%塑膠膜上 1228460 ,係於一與射出塑料同質之塑膠薄膜上厚度約20〜50“m ,以凹版印刷方式印刷有油墨圖樣; 111 貼合製程,該製程係於印刷有油墨圖樣之塑膠薄膜一 面塗布有黏著劑,再將該面貼合於可塑型的%塑膠膜上 厚度約1 75〜380 e m);結合凹板精美印刷和膜1228460 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a printing process for in-house decoration printing that prevents ink wash-up + τ Qiu, and particularly refers to a process that can reduce production costs. Avoid printing ink in the mold during the high temperature process, ink scouring, unstained rhyme, wood mold, continuous in-mold decorative printing and lamination process. [Previous technology] The general in-mold decoration printing (the so-called process of md manufacturing) is mostly used in the decoration of plastic knee casings, such as the plastic casing of mobile phones, which are manufactured by this process. . As shown in the figure, the traditional IMD in-mold decoration printing 2 5 1) The pattern is printed on the side of a plastic PC plastic film (Polycarbonate film) (50) by screen printing. The moldable plastic 胄 (50) with the ink (5 work) pattern is set on the forming die | (5 2), and the shape of the slave is stamped out by hot pressing or high ㈣ type. The forming die (5 2) After removing the spear, the excess portion of the plastic film (50) is cut, and the cut plastic film (50) is placed in the injection mold (53) in the moldable plastic film) " After another, the plastic (5 4) is ejected from one side of the ink (5 1) pattern to cover the ink (5 1) pattern, and then the in-mold decoration printing process is completed. However, the above 1 M D process mainly uses the plastic film of PC, which can be molded and wear-resistant, and has good light transmission. The product can be better than traditional plastic injection molding. Most of the technologies in the market are from the Bayer company in West Germany, and the cost of the equipment is hundreds of millions of yuan. Therefore, it will cause the cost of downstream manufacturers to be 1228460 J. The reason why downstream manufacturers are restricted by equipment manufacturers is mainly in the development of new technologies. The manufacturing process is not expensive, and the ink must not be cracked during molding, and must be resistant to high temperatures during injection molding. It must not be caused by the dissolution and rendering of the ink due to the high temperature, and it is therefore limited by the equipment. 4 Return-to-price instruments and equipment (such as injection machines and molds must be specially designed, and generally injection machines and molds cannot be used) and inks. Also, the thickness of pC plastic film used in IMD process is usually between ~ 3㈣ ^, so that the PC 胄 film itself has considerable hardness, and can meet the conditions of plastic molding. &Amp; Because of this, only screen printing (because gravure printing) It cannot be printed on a hard surface), and the patterns that can be printed by screen printing have reached the limit of low mesh resolution (rougher), which is generally only used for the color registration of simple lines with printed text. If you want to print photo-like shadows, the prints are not beautiful. % G & In addition, in order to prevent ink erosion, a high-priced special ink is required. [Summary of the Invention] In view of this, the present researcher is actively carrying out research and development, with a view to providing two kinds of in-mold decorative printing @ which can solve the above-mentioned W deficiency. After continuous testing and efforts, the present invention has finally been developed. The main purpose of the present invention is to provide an in-mold decorative printing and laminating process which can reduce the production cost, and can avoid the ink washout caused by the printing ink during the horse temperature process; In order to achieve the above-mentioned object of the invention, the present invention is achieved by using the following technical means, wherein the present invention includes a gravure printing process, which is not printed on the plastic moldable plastic film 1228460, which is based on a homogeneous plastic The thickness of the plastic film is about 20 ~ 50 "m, and the ink pattern is printed by the gravure printing method; Type of plastic film with a thickness of about 1 75 ~ 380 em); combined with exquisite printing and film

塑成型的特性。 ^ W 成型製程,該製程係將夾置有油墨圖樣之塑膠薄膜及 可塑型塑膠膜,以塑膠薄膜之一面設 繼或-成型方㈣出所欲形狀後,=模: 移除, 沖切剪裁製程’該製程係將包覆有油墨圖樣之 膜及可塑型塑膠膜多餘部分裁切; 少 .射出成型製程,該製程係將裁切好且包覆有油墨圖樣 之塑㈣膜及可塑型塑膠膜置於一射出模具中,於塑膠薄 膜一面處射出塑料後,即將射出模具移除。 / =上述製程’由於油墨係事先設置在與射出塑料同 λ之塑膠薄膜上,而射出之高、、田 “ $出之间/皿塑枓並非直接與油墨接觸 降因此可以防止油墨在射出製程之高溫下 情形發生,故不需使用高價之模具和射出設備,且使二 油墨亦較便宜,因此可降低製造成本。 【實施方式】 現請參看第-至八圖所示,本發明之防止油墨沖刷之 模内裝飾印刷貼合製程包括有: 凹版印刷製程,該製程係於一與射出塑料同質之塑膠 1228460 薄膜(1 ο)上以凹版印刷方式印刷古 1別有油墨(1 1 )圖樣 參 9 /合製程’該製程係於印刷有油墨(11)圖樣之塑 膠薄膜(1 0 ) —面塗布有黏著劑( ^ 1 2 ),再將該面貼 合於一可塑型塑膠膜(1 3)上; 成型製程,該製程係將夾置有油 ,,由墨(1 1 )圖樣之塑 膠薄膜(10)及可塑型塑膠膜(·! q 、丄3 ),以塑膠薄膜( 1〇)之一面設在一成型模具(14) κ .. m ^ ^ 、丄4)上,利用熱壓或高Plastic molding characteristics. ^ W molding process, which is a plastic film and a plastic film with an ink pattern sandwiched thereon. One side of the plastic film is set or-after molding, the desired shape is formed, = mold: removal, die-cutting process 'The process is to cut the excess part of the film covered with the ink pattern and the plastic film; less. Injection molding process, the process is to cut the plastic film and the plastic film covered with the ink pattern. It is placed in an injection mold, and after the plastic is injected on one side of the plastic film, the injection mold is removed. / = The above process' Because the ink is set in advance on a plastic film with the same λ as the injection plastic, and the injection height is not directly in contact with the ink, so it can prevent the ink from being injected in the injection process. This situation occurs at high temperatures, so it is not necessary to use expensive molds and injection equipment, and the second ink is also cheaper, so the manufacturing cost can be reduced. [Embodiment] Please refer to Figures-8 to 8, the prevention of the present invention The process of in-mold decorative printing and lamination by ink scouring includes: Gravure printing process, which is based on a plastic 1228460 film (1 ο) of the same quality as the injection plastic. The gravure printing method is used to print the ancient 1 unique ink (1 1) pattern. Refer to 9 / Making Process' This process is a plastic film (1 0) printed with the ink (11) pattern — the surface is coated with an adhesive (^ 1 2), and then the surface is bonded to a plastic film (1 3); molding process, the process is to sandwich the oil, plastic film (10) and plastic film (·! Q, 丄 3) with ink (1 1) pattern, plastic film (1〇 One side is set in a forming mold 14) κ .. m ^ ^, Shang 4), hot pressing or high

壓成型方式沖壓出所欲形狀後,再將成型模具(i 4 )移 除; Z、 沖切剪裁製程,該製程係將包覆有油墨(i i)圖樣 之塑膠薄m ( 1 0)及可塑型塑膠膜(i 3 )多餘部分裁 切; 射出成型製程,該製程係將裁切好且包覆有油墨(工 1)圖樣之塑膠薄膜(10)及可塑型塑膠膜(丄3)置 於一射出模具(1 5)中,於塑膠薄臈(1 〇) 一面處射 出塑料(1 6 )後,即將射出模具(1 5 )移除。 籲 由於本製程中之凹版印刷製程,因此油墨(i丄)圖 樣可受到塑膠薄膜(1 〇 )之保護,在射出成型製程時, 南溫之射出塑料(1 6 )不會直接與油墨(1 1 )圖樣接 觸’因此可避免油墨(1 1 )圖樣產生沖刷、沒染的情事 發生’另外,凹版印刷可使得圖樣影像不受限制,讓印刷 效果更加精美,而由於油墨(1 1 )受到塑膠薄膜(1 〇 )的保護’因此不需使用高價油墨(i 1 )亦可印刷出精 8 1228460 美圖樣,同時不需受限於購買高價的儀器設備,故可大幅 降低製造成本,極具產業上之利用性及進步性。 【圖式簡單說明】 (一)圖式部分 第圖為本發明製程中,將油墨印刷在塑膠薄膜之示 第二圖為本發明製程中,將塑膠薄膜與可塑型塑膠膜 貼合之示意圖。 第三圖為本發明製程中,將塑膠薄膜及可塑型塑膠膜 設置在成型模具上之示意圖。 第四圖為本發明製程中,將塑膠薄膜及可塑型塑膠膜 壓型於成型模具上之示意圖。 第五圖為本發明製程中,塑膠薄膜與可塑型塑膠膜脫 離成型模具之示意圖。 第六圖為本發明製程中,將塑膠薄膜與可塑型塑膠膜 之多餘部分裁切後之示意圖。 第七圖為本發明製程中,將塑膠薄膜及可塑型塑膠膜 置於射出模具中之示意圖。After forming the desired shape by pressing, the forming mold (i 4) is removed; Z, punching and cutting process, which is a plastic thin m (1 0) coated with ink (ii) pattern and moldable The plastic film (i 3) is cut in excess; the injection molding process is a process in which the plastic film (10) and the plastic film (丄 3) that are cut and covered with the ink (work 1) pattern are placed in a In the injection mold (15), after the plastic (16) is injected on the side of the plastic sheet (10), the injection mold (1 5) is removed. It is appealed that due to the gravure printing process in this process, the ink (i 丄) pattern can be protected by the plastic film (10). When the injection molding process is performed, the Nanwen injection plastic (16) will not directly contact the ink (1). 1) Pattern contact 'so ink (1 1) can avoid scouring and unstaining of the pattern'. In addition, gravure printing can make the pattern image unlimited, and make the printing effect more exquisite. Because the ink (1 1) is subject to plastic The protection of the thin film (10) 'so you can print fine 8 1228460 beautiful patterns without using high-priced ink (i 1), and you don't need to be restricted to purchase high-priced equipment, so it can greatly reduce manufacturing costs, which is extremely industrial On the utilization and progress. [Brief description of the drawings] (I) Schematic part The first figure is a diagram of printing ink on a plastic film in the process of the present invention. The second figure is a schematic diagram of bonding a plastic film and a plastic film in the process of the present invention. The third figure is a schematic view of setting a plastic film and a moldable plastic film on a molding die in the process of the present invention. The fourth figure is a schematic diagram of molding a plastic film and a plastic film on a molding die in the process of the present invention. The fifth figure is a schematic view of a plastic film and a moldable plastic film separated from the mold during the process of the present invention. The sixth figure is a schematic diagram after cutting the unnecessary portions of the plastic film and the plastic film in the process of the present invention. The seventh figure is a schematic view of placing a plastic film and a moldable plastic film in an injection mold in the process of the present invention.

於塑膠薄膜側射出塑料之示 第九圖為習用製程中, 示意圖。 第十圖為習用製程中, 具上之示意圖。 於可塑型塑膠膜上印刷油膜之 將可塑型塑膠膜設置在成型模 1228460 第十一圖為習用製程中,將可塑型塑膠膜壓型於成型 模具上之示意圖。 第十二圖為習用製程中,可塑型塑膠膜脫離成型模具 之示意圖。 第十三圖為習用製程中,將可塑型塑膠膜之多餘部分 裁切後之示意圖。 第十四圖為習用製程中,將可塑型塑膠膜置於射出模 具中之示意圖。 第十五圖為習用製程中,於可塑型塑膠膜之油墨側射 出塑料之示意圖。 (二)元件代表符號 (1 〇)塑膠薄膜 (1 1 )油墨 (1 2 )黏著劑 (13)可塑型塑膠膜 (1 4 )成型模具 (1 5 )射出模具 (1 6 )塑料 (50)可塑型塑膠膜 (5 1 )油墨 (5 2 )成型模具 (5 3 )射出模具 (5 4 )塑料 10The shot of plastic on the side of the plastic film The ninth picture is a schematic diagram in the conventional process. The tenth figure is a schematic diagram in the conventional manufacturing process. Printing an oil film on a moldable plastic film Setting the moldable plastic film on a mold 1228460 The eleventh figure is a schematic diagram of pressing a moldable plastic film on a mold in a conventional manufacturing process. The twelfth figure is a schematic diagram of the moldable plastic film detached from the forming mold in the conventional manufacturing process. The thirteenth figure is the schematic diagram of cutting the extra part of the plastic film in the conventional manufacturing process. The fourteenth figure is a schematic view of placing a moldable plastic film in an injection mold in a conventional manufacturing process. The fifteenth figure is a schematic diagram of ejecting plastic on the ink side of a moldable plastic film in a conventional manufacturing process. (2) Symbols of components (1〇) Plastic film (1 1) Ink (1 2) Adhesive (13) Plastic mold (1 4) Mold (1 5) Injection mold (1 6) Plastic (50) Moldable plastic film (5 1), ink (5 2), forming mold (5 3), injection mold (5 4), plastic 10

Claims (1)

1228460 拾、申請專利範圍: 印刷貼合製程,其 1、一種防止油墨沖刷之模内裝飾 包括有: ㈡欣即刷製程 咏装裎係於 薄膜上以凹版印刷方式印刷有油墨圖樣,· 畀射出塑料同質之塑馬1228460 Scope of application and patent application: Printing and laminating process, one of them: 1. In-mold decoration to prevent ink washout includes: ㈡Xin is a brushing process, which is printed on the film by gravure printing with ink patterns. Plastic horse 、、貼合製程’該製程係於印刷有油墨圖樣之塑膠薄膜一 塗布有黏著劑’再將該面貼合於可塑成型的塑膠膜上; 成里裝私,5亥製程係將爽置有油墨圖樣之塑膠薄膜及 可塑型塑膠膜,以塑膠薄膜之一面設在一成型模具上,、沖 壓出所欲形狀後,再將成型模具移除; 冲切剪裁製程,該製程係將包覆有油墨圖樣之塑膠薄 膜及可塑型塑膠膜多餘部分裁切; 、=出成型製程,該製程係將裁切好且包覆有油墨圖樣 之塑膠薄膜及可塑型塑膠膜置於一射出模具中,於塑膠薄 膜面處射出塑料後,即將射出模具移除。The bonding process 'This process is based on the plastic film printed with an ink pattern and coated with an adhesive', and then the surface is bonded to a plastic moldable plastic film; it is installed in a private room, and the 5hai process system will be cool. The plastic film and moldable plastic film of the ink pattern are set on a molding die with one side of the plastic film, and after the desired shape is punched out, the molding die is removed; the punching and cutting process, which is covered with ink Cutting the plastic film and the plastic part of the plastic film; cutting out the molding process; this process is to cut the plastic film and the plastic film covered with the ink pattern into an injection mold, in the plastic After the plastic is injected at the film surface, the injection mold is about to be removed. 2、 如申請專利範圍第1項所述之防止油墨沖刷之模 内哀飾印刷貼合製程,其中該成型製程係利用熱壓方式將 夾置有油墨圖樣之塑膠薄膜及可塑型塑膠膜沖壓成型。 3、 如申請專利範圍第1項所述之防止油墨沖刷之模 内I飾印刷貼合製程,其中該成型製程係利用高壓方式將 ^有油墨圖樣之塑膠薄膜及可塑型塑膠膜沖壓成型。。 拾壹、囷式: 如次頁 112. The in-mold printing and laminating process for preventing ink washout as described in item 1 of the scope of the patent application, wherein the molding process uses hot pressing to stamp and form the plastic film and the plastic film with the ink pattern sandwiched thereon. . 3. As described in item 1 of the scope of the patent application, the ink-proof printing and laminating process for the interior I decoration, wherein the molding process uses high-pressure methods to stamp the plastic film and the plastic film with the ink pattern. . Pick-up and style: as the next page 11
TW92137449A 2003-12-30 2003-12-30 In-mold decoration printing and adhering process that prevents ink scouring TWI228460B (en)

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