Technical Support_Technical Support_HuaCai New Materials Technology Co., Ltd.

12-07 

Nozzle classification: nozzle knowledge you should know about printing

Seiko SPT nozzle series Produced by the Seiko Electronics Group of Japan, Seiko was first known all over the world for the production of precision clocks. Now it has considerable strength and foundation in the production of cartridge piezoelectric nozzles, and its stability is just like its Seiko watches. The same quality is superb. SPT nozzles are finally designed by combining the performance advantages of all previous nozzles. While focusing on the previous advantages, they are also mainly reflected in: a. The main performance is the all-stainless steel design, with super durability, and there are 510 pipes for each nozzle. b. Nozzle voltage can change with temperature, so it can be troubled by other nozzles due to temperature and other external factors. c. The data port of the print head can adapt to different printing software, and the print density is more dependent than the previous print head? d. It can be produced in multiple modes. The ink dot particles are 35PL and 12PL, the highest standard precision is 720DPI and 1440DPI, and the color saturation is impeccable. e. The print width of the print head is 75mm, which is 4 times that of the ordinary print head, and can output quickly. f. It has a wide range of applications and is currently used in industrial and commercial printing. g. The cost is low and it tends to be popular. At present, the brands that mainly use Japanese Seiko SPT nozzles are: Feiteng, Xtreme, Jinghui, Gongzheng, etc. Japan Konica nozzle series Konica sprinklers are a newly promoted Japanese brand. Its company first focused on imaging and just stepped into the production of piezoelectric sprinklers. It has also been successful in hardware facilities, but it has too much publicity on domestic agents. Among them, KonicaMinolta 512 print head, according to scientific calculation, its ink dot size is only 56/28PL, and its accuracy is about 720DPI. However, its publicity as 42/14PL has caused many consumers to misunderstand. In addition, its ink is not provided by professional manufacturers. Supervision on the production line is not very strict. Among them, the only successful inkjet printer using Konica nozzles is Yasseran, but due to the brand effect, the price remains high in the industry, and there is no certain flexibility in after-sales service. At present, the brands that mainly use Japanese Konica nozzles are: Yaselan, Aowei, Cheetah, West, Mejet, Blueprint, etc. British XAAR (Xaar) nozzle series The main nozzles produced by XAAR are XAAR128, XAAR500, XAAR126 and XAAR382, XAAR600 and other models. Among them, the 126 and 128 nozzles were one of the most widely used nozzles in China in the early days. At present, the 382 (proton nozzles) and 600 nozzles are mainly used. At present, the brands that mainly use British XAAR nozzles are: Cyber, Liyu, Mejet, etc. American Spectra nozzle series Spectra first produced thermal foaming nozzles for office printing, but eventually gave up due to the emergence of HP and switched to the development of industrial piezoelectric nozzles. At present, it has achieved considerable success in this market. Its print head is characterized by small ink droplets (high corresponding accuracy), very high ejection frequency (fast speed), and is not very picky about ink. Wittur is the first brand to adopt Spectra print heads and is also the most popular in the global market. For the well-received inkjet printers, Spectra’s problem is that the price of the print heads is too high. Although Wittur has sold hundreds of units in China, several domestic inkjet printers using Spectra print head manufacturers have not yet become mainstream products and are mainly exported. It is a compact and lightweight container nozzle with stainless steel packaging. All components can be moved quickly. It is suitable for printers with superior performance. The main models are SpectraSl-128 and Spectra Nova/80LQ. Among them, 128 series nozzles have many similarities with XAAR128+ nozzles in terms of stable performance and usability. However, before the successful development of domestic inkjet printers for the Nova256 series, this type of nozzles were basically used exclusively by the inkjet printer manufacturer-Witt Company. From the perspective of the internal structure of the print head, the XAAR print head uses Teflon material in the part where the print head directly contacts the ink, and the Spectra print head uses a steel structure. The ink has a certain corrosion ability. Due to the steel structure of the Spectra nozzle, the corrosion resistance of the nozzle to the ink is greatly improved; the ink is pressed out of the nozzle, and the strong pressure easily deforms the diameter of the nozzle. The steel structure of the Spectra nozzle is better than the XAAR nozzle Teflon The inner coating of the material is more pressure resistant. Therefore, Spectra nozzles have a longer service life than XAAR nozzles, which has changed the view that nozzles are con

12-07 

Analysis on Influencing Factors of Ink-jet Printing Ink Fluency

Whether the mold system of the digital printing equipment can work normally and stably on the machine directly determines the product quality. If the continuity is not good, it will cause insufficient ink supply, resulting in ink cut during the printing process, which affects printing to a large extent the quality of. So what are the factors that affect the fluency of printing ink? 1. Ink particle size The particle size of printing ink has a great influence on the stability of the ink system. Because the average diameter of the nozzle is only about 50um, it is easy to block the nozzle when the particle size is too large; the average particle size of the ink should be negligible compared with the pipe and nozzle hole, so as to ensure good flow properties. Therefore, when the ink is configured, it must be filtered at 1um and 0.5um (the pore size of the filter membrane is specifically adjusted according to the type of ink) in order to control the size of the particle size. 2. Moisturizing properties of ink The moisture retention and stability of water make it difficult for its viscosity and surface tension to change with temperature, which promotes the formation of a thin and brittle film at the nozzle, which is easy to dissolve without clogging when inkjet printing again. The ink is mainly based on water-based systems, and the solvents used are mostly water-soluble organic mixtures. Commonly used water-soluble solvents are alcohols, polyols, etc. These organic mixtures can improve the stability of the ink. 3. Ink wettability The wettability of the ink is related to the surface tension. The surface tension and dynamic surface tension of the ink will affect the wetting of the pipeline and the nozzle, and the final wetting and spreading on the printing medium. If the surface tension is too high, it may cause insufficient wetting and insufficient ink supply; if the surface tension is too low, that is, if the wetting is too strong, it may cause the ink droplets to gather on the print head, causing the ink dot to break. Appropriate surface tension is the key factor. Generally, the surface tension is controlled at about 30-50mN/m. 4. Digital printing equipment and printing environment The pipeline of the ink supply system is not airtight. During the printing and placement of the ink, some water and low boiling point solvents will evaporate, which will cause changes in the viscosity and surface tension of the ink and other physical and chemical parameters, which will ultimately affect the ink’s performance on digital devices. Printing stability. Therefore, the digital printing equipment needs to be maintained regularly. The environmental temperature is too high or too low, and the humidity is too high or too low to a certain extent, which will also cause changes in the physical and chemical parameters of the ink, requiring suitable temperature and humidity. In northern China, humidifiers and heating equipment are required in autumn and winter; in southern China, air conditioning and other cooling equipment are required in summer and autumn. From this point of view, the factor that affects fluency is not a single individual, but a combination of various factors. High-quality ink and the perfection of external systems can fully reflect the fluency of printing ink.

12-07 

Ink knowledge-what is the difference between water-based dye ink and pigment ink?

Dye ink (Dye Ink) is a molecular-level fully soluble ink. This ink is a complete composite solution. The probability of blocking the ink head is very small. After printing, it is easily absorbed by the material. The color is bright and the cost is low. The disadvantage is that it is not waterproof, and because the dye molecules are quickly decomposed under ultraviolet light, the color will fade significantly within one month of outdoor use under ultraviolet light. The advantage is that the color is bright, the level is clear, and the price is lower than that of the pigment ink, so it is the first choice for printing pictures and making color-jet business cards. Pigment ink (Pigment Ink) is a vivid description, it is powder ink, of course, this is only a vivid statement, not accurate enough. To be precise, it grinds solid pigments into very fine particles and dissolves them in a special water solvent. It is a suspension or semi-solution, which has the same properties as the pigments used in printing and dyeing clothes. Contrary to the principle that the dye ink penetrates into the medium to form color, it develops color by attaching the color material to the surface of the medium (such as copy paper or printing paper, etc.). Therefore, its advantage is that it is printed with pigment ink, even if it is printed on ordinary paper, it will not bleed, and because the pigment itself is waterproof and not easily decomposed by ultraviolet rays, it has strong water resistance and light resistance. Even when used outdoors, it can be maintained for more than one year without obvious signs of fading. The disadvantage is that most of the pigment ink will leave the color material on the surface, so even if it is printed on glossy paper and other flat-surface paper, it cannot print a glossy image. This is why it is generally printed with pigment ink. The things are not shiny. In addition, the manufacturing cost of pigment ink is higher, so the price is more expensive than dye ink, and the price difference is as high as two to four times or more.

12-07 

Product introduction-How to use G1005U HP cleaning fluid-factory users

1. First, wash the ink cartridge with ultra-pure water until no more colored liquid comes out. 2. First, dilute the cleaning solution CC-G1005U and ultrapure water in a ratio of 1:2 to 1:4. The higher the concentration, the better the cleaning effect. 3. Then heat the mixed solution to 50-60 degrees. (If the cleaning effect is good at room temperature, heating is not necessary) 4. Fill the mixed solution into a clean HP/CANON/LEXMARK ink cartridge and wait for 15-30 minutes, and then use pressure or centrifugation to separate the mixed solution from the ink cartridge to complete the cleaning process. Note: In some cases, the ink cartridges filled with mixed liquid need to be cleaned in an ultrasonic machine. It is better to just immerse the nozzle in the mixed liquid. The specific time depends on different nozzles and ultrasonic machines of different power. This scheme is for reference only, and the specific method varies with different cleaning processes.

12-07 

Ink knowledge-fully understand ink

一、零距离贴近墨水 1、价格高昂的原装墨水谁都知道，如果你成为喷墨打印机的使用者，那么在打印机的“有生之年”你都必须要面对无穷无尽的消耗——墨水。一个不可以回避的事实告诉我们：耗材销售支撑着喷墨打印机的市场。以喷墨打印大厂惠普为例，打印机耗材的销售收入比销售打印机的收入高出60%。所以打印机的售价与更换墨盒的成本相比就显得不太重要了。我们知道，更换墨盒大概会花费近百元甚至五、六百元，这就可以理解为什么人们总是热衷于寻找降低每页打印成本的好方法。相对高昂的墨盒价格导致了墨水灌注套件和兼容性墨盒的蓬勃发展。很多墨盒都集成了一个打印头，但并非所有的都有，当原装的墨水耗尽之后，这些打印头究竟能否重复利用还是有争议的问题。多数打印机都采用两个独立的墨盒，一个是黑色墨，另一个内装三种彩色墨（青cyan、品红magenta、黄yellow）。当一种颜色的彩色墨耗尽了，你不得不更换掉整个彩色墨盒，即便另外两种颜色的墨水还有剩余。有些打印机使用四个独立的墨盒，长期使用这类打印机会帮你节省一些支出。其实就像手机入网已经用不了多少钱，可是手机的通话费却很贵一样，你会见到市场上某些特价的打印机价格比更换墨水的价格还要低。为了得到新的墨盒，你甚至可以再买一台全新的打印机，留下你要的墨盒，然后把机器“处理”掉。我们可以理解墨水是祸水，怎么说呢？我们都知道，只要是喷墨打印机都使用墨水——这好像是毫无疑问，打印头堵塞就很难完全避免——这几乎是喷墨打印机用户抱怨得最多的问题。情况不严重时，执行打印头清洗程序就可以解决（代价只是白白浪费一些墨水），但是有些时候消耗掉一整盒墨水也无补于事。这种情况多数是因为打印机放置一段时间不用了。如果你的打印机使用的是集成打印头的墨盒，那么损失还能承受，至多是更换一个新墨盒，倘若打印头是安装在打印机内部的话，最可怕的情况就莫过于送到检修机构后被告知需要花费你数百元更换一个新的打印头。一算开销，刚刚清洗墨头耗费的墨水加上更换打印头的价钱，快赶上卖台新机器的开销了。尽管这种不幸事件并不总会遇到，采购之前了解一下相关的保修细则还是有必要的，也许还应该顺便询问一下更换打印头的价格。 2、寻找代替的兼容墨水说了这么多，事实上我们能否找到一个迅速有效降低打印成本的办法呢？答案是肯定，我们可以采用兼容墨水，这是行之有效的办法之一。首先让我们来认识一下什么是兼容墨水？在一般情况下，我们把打印机生产厂商为自己生产的喷墨打印机指定的配套墨盒称之为原厂耗材，其明确的标识是耗材与打印机的厂标一致（如Epson、HP、Canon、Lexmark等）。我们把厂标（或商标）与打印机生产厂商不一样的所有种类的墨盒、填充墨水统称为兼容耗材，其实这与产地是没有任何的关系。举例来讲：如果某个墨水生产厂家为打印机生产商生产的产品叫原装货，那么它贴上自己商标卖的产品就是兼容墨水——事实上这还不是一回事啊？当然，打印机厂商们的观点是用户必须使用“原装”墨水，并列举了诸如原装的墨水“颗粒小、化学性能稳定”等等很科学的依据，同时以使用兼容墨水（盒）损坏打印机将得不到保修服务来“威胁”喷墨打印机用户必须使用“原装”的墨水而千万不能使用“兼容”的墨水。事实上，从一方面来讲，使用原装的墨水的确可以保证打印机正常运行和确保打印的质量，但这是建立在极其昂贵价格的基础上的，不是我们不想为之，而是有时候的确无力为之，从打印机厂商们的策略来讲，他们是从打印机上获取一些薄利，而从墨盒上获取源源不断的丰厚利润！在国外，名牌兼容的墨水销量一点也不低于原装的墨水，为什么就需要我们中国玩家来承担让打印机厂商赚取高额利润的义务啊？因此我们可以尝试使用兼容墨水。那么使用兼容性墨水会不会损坏打印机的呢？我们知道，使用其它品牌的墨水容易造成墨盒喷嘴的堵塞，以致损坏了打印机。这是打印机厂商们不同意用户使用兼容墨水的一个重要的理由。但是，在这里我要举例说明这种说法是不太正确的：我们以佳能热喷式打印机来讲，大都是采用墨盒与喷嘴一体化的结构，墨水如果用完了，喷嘴及部分加热控制电路也随之墨盒报废，从环保的角度来讲会造成极大的浪费，难道废弃不用的喷嘴还需要担心被堵塞或损坏么？要知道，质量好的兼容墨水和墨盒，与原装墨水一样是有正规的生产线、系统原料和辅料的测试、科学的工艺安排及严格的质量管理体系，特别是每型号墨盒的的海棉与墨水的配合都是经过单独测试和调整的，保证不会与原装墨水冲突而造成沉淀，因此绝不会有堵塞喷嘴的现象。打个比方来讲，喷嘴像大门，墨水里的小微粒就像乒乓球，你什么时候看到乒乓球会把大门给堵塞的？倒是现在有些品牌墨水（如Epson）为了提高打印效果而采用速干墨水，即使是原装的速干墨水也一样容易干涸——不然要这么多家打印机维修站专门清洗喷头干什么？人们往往有这样一种心理，自己的打印机用了原装的墨水堵塞了，会这么想：是不是我的操作有误以至于出了问题呢？但是用了兼容墨水出了问题就会这样去想：天呀，那兼容墨水把我的打印机都弄坏了……呵呵，用户的心理就是这样的奇怪，其实看了上面的这段文字，大家应该要明白：至少在“能打印”这方面，兼容墨水和原装墨水是不分高低的。而除了“能打印”这方面，那么兼容墨水的打印品质能否和原装墨水相媲美呢？我们知道，打印的效果主要是取决于三点：打印机自身的打印技术、打印的墨水和打印的纸张，由于厂商们的墨水配方大概和可口可乐一样是保密的，所以除了原装的墨水厂自己贴上自己品牌的“兼容墨水”外，一般兼容墨水的性能都比不上原装墨水——虽然性价比很高，举例来说，在普通纸上的文字效果边缘有些洇墨，黑度不深，个别型号的墨盒在填充彩色墨水后会略有色偏等等情况，这都是不可避免的，事实上，就连同一个品牌的不同型号的打印机在打印同一幅图画时，也会有较明显的色彩差异现象啦。 3、你是否需要兼容墨水正如刚才所说的，兼容墨水事实上是可以部分地代替原装墨水的。但在我们的印象中，兼容墨水就是为了那些买不起原装墨水的用户所准备的，这些用户想花较少的钱就得到价格低廉而品质接近于原厂耗材的产品，通常使用兼容墨盒（含墨水）的费用约在使用原厂墨盒费用的60%左右，使用填充墨水的费用约在使用原厂墨盒的10至30%之间。大量的费用节省是以一定的品质付出和手工劳动（灌装墨水）为代价的。当然，兼容墨水不建议下列人员使用：1、有专业级精度与色彩需求的用户，例如广告制作、出样等需要的用户；2、经费充裕而又较重视形象的用户；3、打印结果直接用于商业或盈利目的的用户；4、大款，很有钱。如果自我感觉手脚比较笨或者担心灌墨水容易出现麻烦的人，想用兼容耗材的话，适宜直接选择兼容墨盒，而不是用填充墨水。二、完全选购兼容墨水 1、认识墨水市场现在我和大家重点来谈谈如何选购兼容墨水，首先你必须对整个兼容墨水的市场有一个清晰的了解。要知道，兼容墨水不等于假冒墨水，正如我刚才所说的，正品的兼容墨水也是很有生产系统的严格产品。去年整个喷墨打印市场上共销售了1650万个墨盒，加上其他耗材，全年销售额接近35亿元。墨盒（水）利润之大也是大家有目共睹的，在利益的驱动下，假冒墨盒非常地猖獗，因为很多用户都使用了这样的便宜“原装”墨盒，导致打印机故障率一直居高不下。在这里我们需要特别识别假冒墨盒（水）和水货与兼容墨盒（水）的区别。据可靠消息指出，目前假墨水占据了市场容量的70至80%！它们的渠道是非常隐蔽的，甚至连大多数的销售商自己都不知道墨盒的真假。形形色色的伪劣产品层出不穷，主要有以下几种： 1）假皮假芯：这就很简单，就是指包装和墨盒全是假的（但不懂行的人是看不出来的，真正的行家则能看出浙江版、广东版的差别），这也是市场上最多的一种； 2）假皮真芯：包装是假的，但墨盒是真的，由于喷墨打印机的销售利润也已经非常微薄，因此一些打印机销售商家就用假墨盒替换掉打印机中的原厂墨盒，然后把原装墨盒拿来单独出售。结果一台打印机的利润就由原来的10至20元变为100元以上了。 3）真皮假芯：包装是将拆开的真包装重复利用，而里面的墨盒则成了假墨盒，这类大家要特别注意。其中第二种情况我就不多说了，吃亏的都是买打印机的朋友，对于第一、三两种情况来说，普通消费者往往难以鉴别，因为道高一尺，魔高一丈，不要说真皮假芯了，假皮假芯那个外包装印刷之精细都能和原装货做得相差无几，连厂方技术人员不留意都有走眼的时候，何况是我们这些小用户呢？如果大家想了解更多关于墨盒的情况，可以看我之前写的那篇《完完全全了解墨盒》，就会认识得更多啦。其中有一点，我认为打印机的耗材不应该以“原装”“兼容”来区分，而应该用“优质”和“劣质”的标准来区分。只要质量符合要求，就不要看它是否是“原装”了。一般来讲，正规的打印机耗材生产厂家都比较注重质量和信誉，只要按其产品标注的范围使用，基本上不会出现问题。当然，那些急功近利的厂商和打一枪换一个地方的造假者生产出来的产品就另当别论了，这大家一定要注意喔。如果我们注意一下现在的市场，兼容墨盒（水）的生产厂商林林总总共有三十家以上的品牌，六十种以上的型号，其中比较有名的包括天威、格力、耐力、神杰、素之彩等很多种，一般我们认准品牌进行选购就可以了，那种号称一种墨水就能“包打天下”（适用所有墨盒）的产品绝对是不能购买的，因为不可能有这样一种产品存在，打印机品牌和型号如此之多之杂，不要说不同的品牌了，就是同一种品牌不同档次规格的打印机所用的专用墨盒配方都不相同，混用会造成很大麻烦的，如果真能有“包打天下”，那么好的技术早就被打印机厂商们奉为上宾了，哪还犯得着去生产兼容的墨盒？通常技术好的兼容墨水厂商会按照Epson、HP、Canon、Lexmark以及Color（普通）、Photo（照片）等不同打印机生产对应的墨盒（水），有实力的品牌产品线比较健全，能覆盖几乎所有型号的打印机墨盒（水）。喷打的兼容耗材分填充墨水（Refill inks）和墨盒（Cartridge）两种，填充墨水这类产品看上去都是大同小异的，外包装是塑料瓶，内装着墨水，15至30ml不等，好一些的产品会带有详细的说明书和相应的填充工具——比如用于戳孔的针和用于灌墨水的注射器，用户自行将墨水注入用过的原装墨盒中即可放回机器中使用了，填充的方法较简单，个别墨盒（如Epson的部分产品）需要讲究点加墨的技巧。与填充墨水相比，兼容墨盒无论从内部结构上还是使用效果上的差别就非常大了，其中绝大部分是Epson和Canon的不带喷头的墨盒。此类墨盒结构简单，易于制作，所以厂牌很多，也是最鱼目混杂的一类。质量好的墨盒每种型号的海棉与墨水的配合都是经过单独测试和调整的，保证不渗漏不吸干，厂家规模大。质量普通的兼容墨盒只有几套海绵和墨水，产品种类不全面，顶多只有十几种，生产的墨盒只是外壳不同，内部构造完全相同。最近随着HP部分墨盒专利的失效，市场上已经可以见到HP的带喷头的墨盒，目前主要有51626A、51629A，今后会推出51649A、C1823A等型号，这是一个全新的兼容墨盒类别，因为喷头十分精密，制造难度很大，只有台湾省的两家厂商能生产，成本较高，市场零售价约为原厂墨盒价格的80%左右，相信假以时日，它们的价格很快会降下来的。 2、兼容墨水的选购原则刚才我提到的都是市场上的情况，事实上我们可以抓住一些选购的基本原则来办事。我们都知道，合格的喷墨打印机墨水要求具有超小的份子量，渗透率也要适中，还要有一定的粘度比，化学输墨助动性以及精密的化学合成顺序密码。只有达到这样复杂的条件时，墨水才能在喷头上顺利地受控和喷打，才能保证到打印的精度和质量。良好的喷墨墨水对化学合成时的技术要求是非常非常严格的，墨水化学成分如果不对，加注以后新墨水会与原残留墨水起化学反应生成胶状物或者结晶物，这种故障几乎会立即致使喷头报废。目前市场上的兼容墨水品牌非常多，不要以价格低廉作为选择的标准，也不

12-07 

Ink knowledge-introduction to thermal transfer ink

1. Thermal transfer color printing ink (water-based): Thermal transfer color printing ink is formulated with sublimation disperse dyes, other chemical additives and water. Since it is customary to divide inks into oil-based inks and water-based inks in the ink market, when the product appeared in the early days of the market, people called this product a thermal transfer color printing ink, because this ink is a water-based ink, and now people are used to it. Sublimation printing ink or thermal transfer printing ink. 2. The difference between thermal transfer color printing ink and screen printing thermal transfer (sublimation) color paste, thermosetting ink, gravure thermal transfer (sublimation) color paste, and offset printing thermal transfer (sublimation) ink Transfer color printing inks are fundamentally different from screen, gravure, offset thermal transfer color pastes, inks, and screen thermosetting inks. Thermal transfer color printing ink is used for desktop printers and photo inkjet printers. The printing form is non-plate printing, and other thermal transfer printing forms are plate printing. In addition, there are qualitative differences in printing quality such as color saturation and color reproduction. Digital thermal transfer has obvious quality advantages. 1) Thermal transfer color printing inks are mainly used to produce personalized products. 2) Screen thermal transfer colorants and gravure thermal transfer colorants are mainly used to produce printed paper for chemical fiber fabrics and shoe materials, which are suitable for producing low-priced traditional products. 3) Thermosetting inks (thermosols) are mainly used to produce printed paper for cultural shirts and children's clothing, and are suitable for the production of traditional products. 4). Offset thermal transfer inks are mainly used to produce thermal transfer paintings for advertising posters, colorful flags, and banners, and are suitable for the production of mass advertising products. 3. Classification of thermal transfer color printing inks: Digital thermal transfer color printing inks can be roughly divided into two categories. Since digital thermal transfer application products are roughly divided into advertising image products and industrialized products, if the thermal transfer color printing inks currently used in the market are classified according to their quality and price, they can be divided into'advertising image-grade' inks. And'clothing printing and dyeing grade' ink. Previous post: Ink knowledge-understanding of ink parameters

12-07 

Ink knowledge-understanding of ink parameters

1.Interfacial tension: Take mN/m as the unit. Unlike the so-called "surface tension", the interfacial tension includes the surrounding medium, for example, air is mostly used as the medium during testing. This parameter affects the following performance? a. How sharp is the edge of the printed font? b. Ink permeability in paper and other media? The range of common ink interfacial tension values for ink fluidity in ink cartridges:? Epson and Canon black and color inks <34 mN/m @ 20C, HP and Lexmark black inks> 50 mN/m @ 20°C,? HP and Lexmark Color ink <34 mN/m @ 20°C. Use low interfacial tension ink: small ink droplets, the ink will penetrate deeper into paper or other media. Use high interfacial tension ink: large ink droplets, less permeability to the medium. However, too high interfacial tension will cause a lot of foam , This ink is not up to standard. 2 Viscosity: Viscosity will affect the following properties of the ink: a. The edge sharpness of printed fonts and ink permeability in paper and other media b. The fluidity of the ink in the ink cartridges (especially the ink cartridges with sponge, such as HP color ink cartridges and Lexmark black/color ink cartridges) c. The ink flow is blocked (if the ink viscosity is too high, the ink flow will be completely blocked). 3. pH value a. If the pH value is too low (acidic), the ink will corrode the ink cartridge b. If the pH value is too high (alkaline), additional salt will be produced, which will reduce the service life of the cartridge (corrosion) and increase the conductivity c. To ensure good stability of the ink, the pH value of the ink must be equivalent to the pH value required by the dye 4. Conductivity: In the ink, the conductivity value is used to reflect the level of salt content. This parameter is affected by the following factors: a. The salt in the water/ink (such as sodium chloride) will damage the ink cartridge or even make the ink cartridge useless. b. The ionic nature of the dye will not damage the ink cartridge like salt. Generally speaking, the salt content should not exceed 0.5%, and the conductivity should be less than 10000us/cm; to avoid the formation of crystals in the nozzle. To 5. Density and particle size: This parameter is affected by the composition of the ink. a. The density of dye-based inks is mostly between 1.00 and 1.03 b. The density of pigment ink is approximately 1.04. The particle size of the ink should be less than 0.2um.

12-07 

Ink knowledge-basic components of printer ink

The ink of an inkjet printer is the most important part of the printer. Ink for inkjet printers is different from general writing inks, it requires high thermal stability and chemical stability. It requires moderate viscosity, has the characteristics of high concentration, low molecular weight, good fluidity, and clear image layers. From the perspective of the composition of inkjet printers, the main materials are solvents and colorants, and additives such as antioxidants and viscosity modifiers are also added. Solvent occupies the largest proportion in inkjet printer ink and is the main component, which directly affects the physical and chemical properties of the ink, printing quality, printer printing speed, stability and other properties. However, the types of ink for inkjet printers are classified according to the colorants in the ink. The performance of the colorant directly affects the color and tone of the printed image, and its own color, mixing performance, solubility, acidity and alkalinity, and particle size are particularly important. Color inkjet printing mainly adopts the subtractive color mixing method in the mixed color inkjet technology, and uses complementary colorants such as yellow, blue, and magenta. Since the black produced by the subtractive color mixing method does not look black enough, black is added in order to obtain pure black to improve the print quality. The quality of the image overprinted by each color ink is completely dependent on the colorant's own performance and the effect of overprinting with other colorants. Ink for inkjet printers is mainly divided into two categories: dyes and pigments according to colorants. Pigments generally exist in the solvent in the form of particles, while dyes are dissolved in the aqueous solvent in molecular form. The dye molecules dissolve in the ink and penetrate or absorb into the surface of the substrate such as paper with the solvent. Because the dye can form a stable and uniform phase in the molecular state and solvent, the image printed by dye ink has high resolution and good clarity, but it has poor light resistance and water resistance, and it is mostly used in indoor occasions. In pigment ink, particles are dispersed into the ink, and the pigment particles remain on the surface of the substrate such as paper, so the color intensity and gloss of the printed image are high. At the same time, when it is exposed to the external environment or sunlight, it is resistant to light and high temperature decomposition, and is suitable for outdoor use, but the fineness of the pigment particles is very high.

12-07 

Ink knowledge-water transfer technology

Just use water transfer ink with water transfer film (paper) to transfer the effect to any material, including computers, mobile phones, packaging, glass, ceramics, metal, wood, plastic parts, marble, ceramic sanitary ware, ceramic tiles , Handicrafts, toys, furniture, instrument housings, household appliances, automobiles and other objects that need decoration, etc., without any equipment, you can make unique products. In response to market demand, water transfer printing technology came into being. With the help of ordinary inkjet printers, the printed images are colorful and rich in layers. Users only need to use water transfer consumables to print customer-designed patterns on a special water transfer film, and then transfer them on the surface of the gift as needed. Print processing. The whole process can be completed in a few minutes, which is convenient and quick. Because it is based on the principle of drop-on-demand inkjet, there is no requirement for the number of gifts that customers want to print. One piece can also be printed. The printing effect is comparable to photos, and it is waterproof and wear-resistant. Water transfer ink can also be applied to oil-based direct printing platform printers. To The company produces and develops water transfer inks, completely using salt-free color paste, the ink is stable, no precipitation, no crystallization, no plugging, no smudging during transfer, and the printed image is bright in color and rich in layers; The packaging is 1KG and 20KG respectively.