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《亚洲标识》杂志

2019年8月杂志_亚克力:让UV打印脱颖而出

2019-08-06 10:43:51

摘要:

Acrylic face mounting can make a print really stand out, which is an essential prerequisite for fine art and other high-end applications. In order to produce a visually appealing output, there are five physical material aspects one must consider.

使用UV数码打印的亚克力板,不仅给人们视觉上留下令人深刻的印象,而且还增添了艺术效果。但是在适用亚克力时,还需要考虑五个方面的问题。

 

1.Photo paper or print media

印相纸或打印媒体


The photo paper or print media plays an important role in the acrylic face-mounting process. One must always use good quality paper for an acrylic print. The most popular print media—and the one which the author prefers for most projects—is metallic paper. Whether it is satin or glossy, metallic paper enhances the vibrancy of a photograph. Not all pictures require metallic paper though; portraits, for example, often produce the best results on a pearl-finish type paper. Every surface has a roughness average (RA) and, the smoother the surface of the photograph, the better the results will be during the face-mounting process. If one does not have a completely smooth surface, they risk getting tiny air bubbles in the print called silvering.

UV打印亚克力必须使用优质纸张,因为印相纸或打印媒体在亚克力表面打印过程中扮演着重要角色。无论是缎子纸还是有光泽的金属纸,都能增强打印品的光泽性能,但是最受打印媒体欢迎的是金属纸。不过,并非所有的亚克力打印图片都需要金属纸,例如,肖像的画在珍珠纸上打印的效果最佳,因为珍珠纸有Ra平均值,Ra是表面粗糙的一种计量单位,珍珠纸表面越光滑,亚克力打印的效果就越好。如果印相纸不够光滑,亚克力打印品就会产生微小的气泡。


2.Acrylic、

亚克力板


Another important aspect for face mounting is the acrylic itself. Not all acrylic is alike: there is cell cast acrylic and extruded acrylic. Cell cast acrylic is harder, has a more uniform thickness, is more scratch-resistant, and is typically clearer than extruded acrylic. Most people in the signmaking industry only use cell cast acrylic for face mounting, regardless of its thickness. There can be slight variance in thickness when dealing with this material; therefore, a laminator that can adapt to these variances definitely helps.

亚克力打印的另一个重要材质就是亚克力本身。亚克力通常分为浇铸亚克力板和挤出亚克力板。浇铸亚克力更硬,厚度更均匀,更耐刮擦,通常比挤出亚克力打印的图像更清晰。所以大多数广告打印商都偏爱浇铸亚克力板,无论厚度多大,均使用浇铸板打印。但是在打印厚度较大的材料时,层压机可以帮助您去解决厚度变化的问题。

Heat can be used to shape acrylic into a variety of items such as furniture or art pieces. The material is also affected by humidity, which can cause the acrylic to warp, even after face mounting. In such a case, for example, the acrylic starts flat and is fine until after a period of time, when environmental conditions begin to cause damage. Warping is caused by differential moisture absorption on the face of the acrylic versus the back surface, which is covered by the print and, in some cases, a non-acrylic backer and cleat-style hanging. This issue can be resolved by using another piece of acrylic as the backer instead of some other material; however, this would result in a more even reaction to moisture absorption on each side of the mounted print. Similarly, it would create a more even reaction to thermal changes if it were part of the cause.

加热的亚克力可以塑造成各种各样的物品,如家具或艺术品。但是亚克力打印会受到湿度的影响,即使打印后的亚克力,湿度也会导致它发生翘曲。在这种情况下亚克力表面发生的扭曲,是由于压克力表面与背面的不同吸湿性引起的,因为背面被打印物覆盖,悬挂材质是非亚克力背衬材料和夹板,所以导致打印品塑件的不均匀收缩。可以用另一块亚克力作为背衬材料,而不是其他材料,这样安装的打印品每侧吸湿性就会产生均匀的收缩率。

Cell cast acrylic is harder, has a more uniform thickness, is more scratch-resistant, and is typically clearer than extruded acrylic

浇铸亚克力更硬,厚度更均匀,更耐刮擦,通常比挤出亚克力图像更清晰。


Acrylic can turn out to be an expensive material. 

亚克力是一种昂贵的材料


A single 2438- x 1219-x 19.5-mm (96- x 48-x 0.75-in.) sheet of museum-quality acrylic can cost nearly $4000. While this acrylic type is not required for most projects, one cannot expect to see stunning results with cheap material from a local store. However, cheap acrylic is good to practice with and hone one’s mounting and polishing skills.

一张2438-x 1219-x 19.5-mm(96-x 48-x 0.75-in.)的丙烯酸树脂亚克力价格接近4000美元,虽然大多数项目都不需要这种丙烯酸树脂,但是您不能指望从当地商店买到便宜的材料就能获得惊人的效果。但是,便宜的亚克力很适合打印商磨练打印品的安装和抛光技术。


Optically clear material is a two-sided adhesive, which is used to adhere a photograph to the acrylic. The material must be of the highest quality to ensure a clear picture without any distortion. However, products may not be similar to one another; therefore, as a result, one must research the material to ensure it suits their project needs.

 光学透明材料是一种粘度质量非常高的双面胶,它可以确保打印的清晰图像粘贴到亚克力上没有任何变形。然而,每一种图像的打印材质不同,因此,您必须确认好各种黏贴剂适合什么材质。


3.The backing

 背衬材料


This can be the most important piece of a project if it involves hanging the picture on a wall at the end. 

背衬材料是制作完成的成品安装项目中最重要的部分,因为它涉及到挂在墙上成品的安全。


The backing should be able to support the weight of the acrylic—without tearing away from the back of the photograph to which it is adhered—and must also maintain its adhesion to the mounting hardware. Typically, an aluminum composite material (ACM) backing or coloured 3.1-mm (0.12-in.) cast acrylic sheet is used for wall-hung pictures. The composite consists of a high-strength aluminum skin on both sides and compresses a strong polyethylene-centre core. It provides protection to the back of a picture and also serves as a strong substrate for the acrylic to hang safely. Cast acrylic backings are similar in nature. The mounting step requires another double-sided adhesive to bond the rear of the image to the backer.

背衬材料必须能够支撑亚克力的重量,而且不会从黏贴的照片背面撕下,同时也要保证与其他部位的粘附性较好。一般情况下,壁挂图像使用浇注亚克力打印,背衬材料选用铝质材料(ACM),铝制材料由两侧的高强度铝皮组成,并压缩一个强大的聚乙烯中心芯。它是亚克力悬挂的强力基地,同时也保护了图片的背面。

模塑料亚克力的背衬与上述相似,只是安装的步骤需要另一个双面胶将图像的后部粘合到衬垫上。

Acrylic face mounting can make a print really stand out, which is an essential prerequisite for fine art and other high-end applications.

使用UV数码打印的亚克力板,不仅给人们视觉上留下令人深刻的印象,而且还增添了艺术效果。


4·The hanging system

展示安装


The hanging system goes hand-in-hand with the backing. No matter how good the backing is, if the hanging system fails, nothing else matters. A number of systems are available on the market, including cleat-style and patented methods; one must research to find a hanging system that best fits their needs.

悬空展示打印的广告标牌,在安装的时候需要接缝底部与背衬粘合,但是只要悬挂方式错误,不管背衬材料多好都没有什么作用。所以您需要找到适合自己打印成品的悬挂方式,因为市场上不仅有用广告钉夹住图像的夹板式,还有直接把图像钉在墙壁上的鞋钉样式。


The system should be large enough to support the weight of the material. If it is too small, the weight of the picture will exceed the dimension of the hanger, pulling it away from the backer. A cleat-style hanging system requires an adhesive with high shear strength to be used on the front and back of the photo. This will hold the photo in place, whereas, an adhesive with a lower shear will release from the backer over time. This can make the image slide down the backer, or simply separate all together.

夹板式悬挂的夹钉与打印的亚克力图像接合的部分,要使用髙强度的粘合剂,这样可以始终保持打印图像在稳定的位置,如果是较低粘度的粘合剂,长时间使用后,夹着图像的钉子底部与图像会相互脱离。此外,底部的夹钉应该有足够大的力量来支撑打印的亚克力图像,因为底部承重太小,图像会超出夹钉底部的尺寸,容易使图像滑落。


Metal bolts that hold an image to the wall with anchors that have been installed into the wall surface are known as standoff systems. These hanging systems provide sufficient weight distribution and support so that a lower shear strength adhesive can be used for the backer. This is because the standoff goes through the sandwich of the face mount, keeping it together and supporting the entire weight of the piece on all four corners from front to back. With this system, the image does not slide down the backer because its corners are supported equally. What one needs to consider is if they want to carry two different products for this process, and if they want to be able to see the material they are using to mount the backer.

举个例子说鞋钉式,假如您要把用亚克力打印的锚形图像放在墙壁上展示。首先,您需要确定用什么方式展示,选择夹板式或直接钉在墙上的鞋钉式。其次,如果您选择了鞋钉式,那么你就需要在锚形图像四角转孔,然后用广告钉,使其稳定的钉在墙壁上,由于锚形图像四周受力均匀,所以不会轻易掉落。在安装的过程中,您还需要考虑清楚什么颜色的广告钉与打印图像更匹配,因为广告钉不仅仅只有银色,还有金属色、彩色等。

Typically, an aluminum composite material (ACM) backing or coloured 3.1-mm (0.12-in.) cast acrylic sheet is used for wall-hung pictures.

壁挂图片使用铝质材料(ACM)背衬或彩色3.1-mm(0.12-in.)浇铸亚克力板。


5.The mounting equipment

处理设备


In addition to the materials outlined above, it is essential to have the correct mounting equipment, which includes: a laminator, a dust removal system (DRS) roller, a cutting mat, and cutting knives. The laminator should have silicon-based rollers with a smooth RA. Similar to the media used for printing, the roughness of a roller determines the print’s finish.

上述说的安装步骤,需要使用后期处理设备覆膜机、辊、除尘系统(DRS)滚筒、切割垫和切割刀等制作出完成品后才能进行安装。另外,后期处理的覆膜机设备硅基片需要确定是光滑的RA值。


Some knives have snap-off segmented blades, so one can get several sharp edges from one replaceable blade. With the right kit, one can create results worthy of a fine art gallery.A self-healing cutting mat is always a good choice as it can be used for a long period of time. It should be clean and large enough to work on. Knife blades must be replaced regularly as a dull blade will cause a less than desirable

因为用亚克力打印出来的图像,还是属于半成品,您需要找到合适的切割工具,切割成客户想要的成品图形。切割的工具分为切割垫和切割刀,切割垫要干净、耐用,并且刀片还要定期更换,因为钝刀片是切不出理想的成品。


A unit with a heat-assisted top roller can help with face mounting. The larger the diameter of the roller, the less deflection there will be when processing. Less deflection means there will be more direct, even pressure across the piece; if it is uneven, it will cause wrinkling and/or drifting. The durometer rating of the roller must be considered, too. While a higher-rated roller is harder and provides direct pressure, it does not give to any variances in the substrate like a softer durometer would. A softer durometer will flatten out to a wider footprint of pressure, so the downward force will cover a larger surface area.

为了保护切割出的图像不脏乱,需要带有热辅助的辊进行覆膜,辊的直径越大,覆膜的偏转度就小,较小的偏转就意味着覆膜更直接、更均匀,因为覆膜不均匀,会在图像上留下皱纹的痕迹。另外还要考虑辊的硬度等级,虽然硬度较高的辊在覆膜时的压力较大,但是他不会像较软的滚筒覆盖面积广泛。


A DRS roller is used to remove dust and debris from laminator rollers, tables, work surface, prints, and acrylic. Anything that comes in contact with the final work should be cleaned with a roller. This will limit the number of particles that can get into the adhesive and ruin the print. Note: There are two different rollers available—one blue, one red. 

此外,滚筒可以帮助打印完并且切割后的产品,清除灰尘和碎屑,有蓝色和红色两种颜色的滚筒。所以,数码打印的产品,使用滚轮可以有效预防打印品的画面被没有干的墨水蹭花,以及及时清除产品上切割时留下的碎屑。


With almost 10 years of experience with Drytac, Steve Yarbrough currently serves as a product support specialist. With his excellent technical knowledge and thorough understanding of the market, Yarborough provides Drytac’s customers sound advice on both products and applications. His background in art and graphic design also allows him to offer insight into the graphic and print industry. He can be reached via e-mail at steveyarbrough@drytac.com.

Teve Yarbrough是一位拥有10年数码打印经验的人,他凭借卓越的技术知识和对市场的透彻了解,为客户提供了多方面数码打印合理建议。并且他拥有的艺术设计背景也使他更深入打印行业。他的联系方式是:steveyarbrough@drytac.com。


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