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不干膠印刷質量控制要注意什么?

來源:http://www.703248.com/   發布時間:2022-01-21
印刷完成之后的不干膠產品,也可采用聯機進行燙金、覆膜以及模切、分切等作業,而采用聯機同時作業的不干膠產品版面,設計時要充分考慮到設備特點,盡量避免大面積實地版面疊印,使印刷、燙金、覆膜能獲得較好的效果。燙箔工藝是不干膠產品深受市場歡迎,必不可少的一道工序。
For the self-adhesive products after printing, online bronzing, film covering, die cutting, slitting and other operations can also be adopted. For the self-adhesive product layout with online simultaneous operation, the equipment characteristics shall be fully considered in the design, and large-area field layout overprint shall be avoided as far as possible, so that the printing brush, bronzing and film covering can obtain better results. Foil ironing process is an indispensable process for self-adhesive products, which is very popular in the market.
銅版不干膠、塑料薄膜不干膠產品常常采用電化鋁燙印工藝,可起到畫龍點睛的作用,提高商品的附加值。但是,如果工藝不當,電化鋁燙印容易出現一些質量問題,如版面發花、鋁箔附著不牢、版面邊沿毛刺等弊病,將會影響產品的市場形象。所以,為確保燙箔質量,底色油墨不可印得過于厚實,工藝上應盡量做到“深墨薄印”,也就是說要把油墨的色相適當調深些,使印刷墨層相應減薄一點就能達到符合原稿要求,并有利于鋁箔的牢固附著,也不易產生拉脫底色墨的燙印弊病。為了使燙箔版面清晰,鋅版要腐蝕得適當深一些,使燙印版面和空白部位形成一定量的高度差,以免出現空白版面起臟。
Copper plate self-adhesive and plastic film self-adhesive products often use electrochemical aluminum hot stamping process, which can make the finishing point and improve the added value of goods. However, if the process is improper, anodized hot stamping is prone to some quality problems, such as layout blooming, weak adhesion of aluminum foil, layout edge burr and other disadvantages, which will affect the market image of the product. Therefore, in order to ensure the quality of hot foil, the background ink should not be printed too thick, and the process should try to achieve "deep ink thin printing", that is, the hue of the ink should be appropriately deepened to make the printing ink layer thinner, which can meet the requirements of the original, and is conducive to the firm adhesion of aluminum foil, and it is not easy to produce the hot stamping disadvantage of pulling off the background ink. In order to make the hot foil layout clear, the zinc plate should be corroded properly to form a certain height difference between the hot stamping layout and the blank part, so as to prevent the blank layout from getting dirty.
由于燙箔壓力比印刷壓力要稍大些,為避免襯墊受壓變形引致電化鋁版面邊緣毛刺產生,故襯墊應采用中硬性材料,變形系數少且平整度好,才能保證燙印效果,使整批產品質量達到一致。另外,如果燙印效果不良,出現燙印不上、發花、附著不牢等質量缺陷時,工藝操作措施上無法克制上述情況的,可考慮更換質量較好些的燙金箔,以改善燙印質量效果。
濟南畫冊印刷
Since the foil pressing pressure is slightly higher than the printing pressure, in order to avoid the edge burr of electrochemical aluminum plate caused by the compression deformation of the liner, the liner should be made of medium hard material with less deformation coefficient and good flatness, so as to ensure the hot stamping effect and make the quality of the whole batch of products consistent. In addition, if the hot stamping effect is poor and there are quality defects such as poor hot stamping, hairiness and loose adhesion, and the above conditions cannot be restrained in the process operation measures, it can be considered to replace the hot stamping foil with better quality to improve the hot stamping quality effect.
不干膠分為紙類不干膠標簽紙——通常有光面銅版紙、啞粉紙、特種紙、膠版紙、牛皮紙、鋁箔紙和熒光紙等多種材質;非紙類不干膠標簽材料——有PET、PE、PVC、BOPP、OPP、鐳射膜、緞和無紡布等。
Self adhesive label paper is divided into paper-based self-adhesive label paper - usually made of smooth coated paper, matte paper, special paper, offset paper, kraft paper, aluminum foil paper, fluorescent paper and other materials; Non paper self-adhesive label materials include pet, PE, PVC, BOPP, OPP, laser film, satin and non-woven fabric.
不同材質的標識不干膠,在印刷工藝上,應采用與之相適應的油墨進行印刷,如非吸水性的材料,應采用合成油墨進行印刷,才能較好地確保油墨附著的牢度和干燥性。在模切上也要注意控制好相應的壓力,才能保證便于使用時的撕揭。此外,不同特性的不干膠,其粘合劑的性質也有差異,如熱熔膠的不干膠粘性較強,適合于粘帖在金屬、玻璃、木器、塑料以及盛裝可冷藏食品的容器等,在使用的過程中可以較好地避免標簽出現翹角、卷邊或出現脫落等不良現象。
For the identification self-adhesive of different materials, the corresponding ink shall be used for printing in the printing process. For example, for non absorbent materials, synthetic ink shall be used for printing, so as to better ensure the fastness and dryness of ink adhesion. In the die-cutting, we should also pay attention to controlling the corresponding pressure, so as to ensure the tearing and uncovering when it is easy to use. In addition, the adhesive properties of self-adhesive with different characteristics are also different. For example, the self-adhesive of hot melt adhesive has strong viscosity and is suitable for sticking to metal, glass, wood, plastic and containers containing refrigeratable food. In the process of use, it can better avoid adverse phenomena such as warping, crimping or falling off of labels.
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