inkjet printer: 七月 2019

2019年7月31日星期三

Why the dye sublimation paper roll is arched when sublimation printing

When the sublimation printer prints out a large-size format, it will continuously feed the dye sublimation paper roll for a long time. If the paper medium is not flat, the paper will be arched, etc., which will affect the printed image of the domestic photo machine. So what is the problem with the domestic photo machine taking the paper? What factors will cause the domestic photo machine to smash the paper? Generally, there are many reasons for the domestic photo machine to smash the paper. The common ones are as follows:

1. The abnormality of the sublimation paper feeding system is a common factor in the arching of domestic photo machines.

Dye Sublimation Paper Roll

For example, the sublimation transfer paper is inconsistent with the roll paper, or the domestic photo machine has an obstacle at one end when printing the picture, which will cause the paper to arch. In addition, check the platen roller and the platen to see if the pressure is too tight, you can adjust it properly. The pressure of the platen roller is uneven, or the platen roller does not rotate or jam, and the pressure of the platen roller is too large, so that some of the platen roller rotates to transfer the paper, and some press the paper without moving, so the paper is fed. There are problems such as arching or wrinkling.

2. Abnormalities in the suction platform will also lead to paper arching.

The suction platform fan does not rotate, and there is a problem that the suction cannot be applied, so the material cannot be attached to the printing platform very well, so that when printing, it is easy to carry the material and the arching phenomenon occurs.

3. Problems with materials.

Sublimation Paper

If the quality of the dye sublimation paper material itself is unqualified, it will cause the abnormality of the paper machine made by the domestic photo machine, and it will cause the picture printed by the domestic photo machine to malfunction. In addition, if the material is damp, it will also cause the domestic photo machine to take paper. Arched. Therefore, you must always buy high-quality materials and store them properly to avoid moisture.

When the printer has a phenomenon of arching, as long as it is checked from these aspects, it is generally possible to find the cause, and then solve the problem for the cause.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月30日星期二

The large format dye sublimation printer is getting wet,what should we do?

When the large format dye sublimation printer is getting wet,what should we do? Raining not only brings inconvenience to people's lives, but also causes troubles in the production of photo machine advertisements in the advertising and painting industry. I believe that many of my friends have encountered this picture in the big and small rainy days. The material is prone to moisture and other problems.

Large Format Dye Sublimation Printer

It will rain for a few days, and the inkjet sublimation printer users should do a good job of moisture-proofing related printing materials. In many advertising shops or advertising inkjet companies, there are many spare printing materials of different materials, such as These materials, such as inkjet cloth, photographic paper, etc.,
especially paper materials, should be stored carefully, placed on the relevant shelves, placed high, as far as possible not to squat on the wall, floor or window, these are easy to get from the outside Where water droplets enter the area and are easily damp, the materials that are not used should be packaged in a packaging box or a plastic bag as much as possible, stored in a dry and humidity-friendly room or warehouse, and attention should be paid to the problem of flooding in low-lying areas.

The printing material is moisture-proof, in addition to the storage problem of the printing material related to the digital sublimation printing machine, in addition, when the inkjet printer prints out the picture, it should also be noted that in the wet weather in the rainy day, the photo machine will have some minor faults when printing the picture, the ink Affected by the humidity of the weather, the viscosity, consistency, etc. are different. For example, the ink on the output screen of the photo machine is very dry, especially in the black part. Sometimes the image is very dry after the output, and it should be flat and spread for a long time. The working hours that affect the production of the advertisement.

In addition, the problem of moisture between the ink and the printed material may cause the ink to spread on the damp paper, the effect of smearing the ink. In addition to the above-mentioned printing medium to be dry and stored to avoid the problem of moisture, there is a problem that the output screen of the photo machine is dry slowly, the drying platform of the photo machine can be opened, and the heating platform can be turned on to make the photo The screen output of the

Sublimation Printer

machine can be heated to accelerate the drying, or the cold air drying fan can be configured for the photo machine. In addition, if the above conditions are not available, a small tip can be introduced, and the air blower can be used to open the cold air or the warm air to dry the picture, but It should be noted that the wind speed should not be too large. It should not be directly blown to the screen. It should be blown back and forth as far as possible from the screen. Do not use hot air to blow, avoid damage caused by damage to the screen.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月24日星期三

Before I buy the inkjet sublimation paper,how can I test its quality?

Inkjet Sublimation Paper

Digital textiles is a family, among which sublimation is an important member, composed of three important roles: thermal sublimation printer, sublimation ink and sublimation transfer paper. They stick tightly to each other and cannot work without any of them, like triangles.

Because many people do not know exactly how to test the dye sublimation paper samples and fully identify the quality of sublimation transfer paper. Our production workers and researchers offer the following tips based on their expertise.

First, you should know your sublimation transfer paper test report.

Check the test report of sublimation transfer paper provided by supplier. The test report is conducted by the researcher in the original laboratory, including every important factor of the paper, and all the data are authoritative and reliable.

Second, check the paper's appearance.

1. Smoothness of paper

Sublimation Paper

Smoothness can be easily identified by observing the surface of sublimation transfer paper roll. Using high quality sublimation transfer paper, the printing surface is very smooth. Because if the printing surface is too rough, it will scratch the high precision piezoelectric print head. Our sublimation coating is very good to ensure the optimum smoothness of the paper.

2. The Impurity

Check the paper for any dots. When you transmit a solid color (just one color), the dot can seriously affect the transmission result.

Third, test the paper on your device

Drying time: when printing paper, you can see the drying time of heat transfer sublimation paper.

(1). Drying paper quickly can greatly improve your productivity.

(2). High transfer. This is very important. Transfer efficiency is, first, how much ink the paper can transfer to the fabric during the transfer process, and second, color restoration. According to our test, our high quality paper transfer rate is 97.6% and viscous sublimated paper is 96.4%.

The final test results are related to your printer and ink, and when you first test the paper and the results are not ideal, you'd better adjust the print and transfer Settings based on the sample.

2019年7月15日星期一

Can heat transfer sublimation paper be used to print dark fabric?

Heat Transfer Sublimation Paper

Printing dark fabrics on heat transfer sublimation paper successfully and easily is probably one of the holy grails of garment decoration, and decorators are always searching for new solutions.One of the questions we get asked quite often is whether or not sublimation can be done on dark fabrics. Since sublimation has a lower cost for entry than other forms of printing, many people are eager to sublimate on light and dark fabrics but, as of right now, it doesn’t work that way. Sublimation can only be done on light colored polyester fabrics or poly coated items.
There are two reasons that sublimation paper doesn’t work on dark colors. The first is that sublimation ink dyes the fibers of the garment. Sublimation is a process by which a solid turns into a gas without going through a liquid state. Through the use of heat, the gas bonds with the fibers of the garment, or the poly fibers in the coating on the sublimation blank, and dyes those fibers. There is no coating and no underbase, the ink literally dyes the fibers and becomes part of the fabric. Using this process on darker fabrics doesn’t work because, although you can dye the darker fabrics with the ink, you won’t be able to see the resulting design.

Sublimation Paper

The second reason that sublimation won’t work with dark colors is the lack of a white underbase to make the colors stand out. Any type of printing that is even moderately successful with dark colors, whether it’s screenprint or direct to garment printing, requires laying down an underbase of white before the colors are applied. Sublimation ink only works on polyester, so laying down an undercoat of white would require something that had polyester fibers in it, which may not even be possible when it comes to ink.
Currently,dye sublimation paper only works with lighter colors. It is recommended primarily for white, as white will not interfere with the colors of the ink. If you do choose to sublimate on a light color, please understand that the color of the fabric will have an impact on the color of your ink.Oftentimes the tone on tone color contrasts are attractive, but the fact that garment color can alter ink color slightly should be kept in mind.

2019年7月11日星期四

Eco-solvent ink and uv ink, what is the difference between them?

Due to their inherent nature, uv inks and eco-solvent inks determine their respective application methods and applications. Since uv ink can be used together with white ink, many manufacturers can print some beautiful relief effects, which are firstly embossed with white ink, and then printed with color uv ink to achieve the relief effect. The weak solvent cannot be printed with the white ink, so there is no way to print the relief effect.
In addition, because inkjet eco solvent inks need to be coated when printing, many unprinted printed products are easy to fade; uv ink can be used directly to print many materials, no need to do anything. The coating treatment is simple, convenient and practical.

Eco-solvent Ink

The UV ink has a pigment particle diameter of less than 1 micron, does not contain volatile organic solvents, has ultra-low viscosity, and has no irritating odor. It ensures that the ink does not clog the nozzle during the jet printing process. After six months of high temperature storage test, no pigment condensation occurs. Abnormal phenomena such as sinking and stratification. The UV ink is spray-dryed and can be matched with various types of nozzle UV flatbed printers currently on the market. UV ink is suitable for printing metal, glass, ceramic, PC, PVC, ABS and other materials. The cured ink layer has high hardness, good adhesion, scrub resistance, solvent resistance and high gloss. UV inks are available in C, M, Y, K, LC, LM, white, transparent, 8 colors, and light fastness levels of 7-8. Pack 1 liter / barrel. Applicable: UV flatbed inkjet printer at home and abroad.

Eco-solvent Printing Ink

Structurally, uv inks differ greatly from conventional eco solvent printing inks, starting with little or no volatile solvent (VOC). Conventional solvent-based inks contain at least 50% more volatile solvents, which is the basis for uv inks as environmentally friendly inks. Secondly, the uv ink is generally composed of 30-40% of a host resin, 20-30% of an active monomer, and a small amount of a photoinitiator and a similar leveling agent, an antifoaming agent and the like. The host resin and the reactive monomer are both reactive.

Regarding printing speed of digital printers, don't make these misunderstandings easily.

The digital printer printing speed is the printing efficiency of the printer. It refers to how many square meters the printer can print per hour or how long it takes to print a square meter pattern. When the specific printing mode cannot be judged, it is easy to enter the misunderstanding when talking about the speed of the universal printer. There are three main errors in printer speed: 1. theoretical speed; 2. different mode speed; 3. actual printing speed.

1.Theoretical speed

Digital Printer

The speed that a inkjet printer usually refers to is just the print speed of the print head. In many cases, subject to the limitations of software technology, subject to parts and workmanship, performance limitations, a lot of speed is simply not achieved, in the case of no accuracy, manual loading and unloading, in order to reach the printing speed in the limit mode.

2. Speed in different modes

With a few pass print mode speed, this is actually not allowed. Although the larger the pass value, the slower the speed, but the factors affecting the amount of feathering, single bidirectional, loading and unloading, rubbing coating or alcohol, etc., can not be realized in actual printing.

3. Actual printing speed

It refers to the printing speed that is integrated in the actual production process, taking into account the accuracy, considering the manual loading and unloading, taking into account the factors such as wiping alcohol or coating.

How to improve the actual printing speed of the printer as much as possible:

1. The configuration of the upgraded wide format digital printing machine includes not limited to: increasing the speed of the print head, replacing the higher performance print head, selecting the double row print mode, etc.

Inkjet Printer

2. select a larger format equipment, so that when the printer prints a full part, the

processing of the back material is carried out simultaneously, so that after printing the latter part of the material, the material of the front part is replaced, and the machine is continuously printed.

3. The details of operation: choose a reasonable print mode, feathering settings, drawing efficiency, etc., these are affected by the level of different printer technicians.

2019年7月10日星期三

Your photo printing machine is leaking,Do you know how to check it?

Operation of the photo printing machine will always encounter a variety of problems, such as the photo machine leaks, how to check the machine for leaks, what is the performance of the machine leak, how to deal with this phenomenon? Today, I will introduce the knowledge about the leaks of machines.

1. How to check if the machine has air leakage?

Photo Printing Machine

First, you need to inject 25ml--30ml of ink into the nozzle, suck the air out of the pipe, and then install the nozzle, which is higher than the car, and put it upside down for three seconds before releasing it. At this time, bubbles will appear in the nozzle. Will rise upwards, then we have to carefully observe, if the bubble rises slowly, it means normal, and if the bubble does not stop if it rises, then the installation port leaks.

2. What is the performance of the machine when it leaks?

The performance of the digital printing machine leaking: (1).The photo machine will appear in the process of spraying the bubble does not go inside the nozzle; (2). The bubble appears backflow; (3). The ink in the nozzle hole is very serious; (4). The contact The belt will be stained with ink; (5). Ink will appear when printing.

3. What should I do if I find that the machine is leaking?

Inkjet Printer

The general photo machine air leakage mainly refers to the air leakage of the mounting hole. This is likely to be caused by excessive force during installation. It is recommended to use the middle hole of the bicycle inner tube to cover the nozzle mounting hole, and then tighten the ink needle.
The relevant knowledge about the leakage of the inkjet printer is mentioned here. I hope that everyone will accumulate some knowledge of the photo machine, so that when the machine fails, it can solve it by itself. While saving time, it also saves the maintenance cost. It can be said to kill two birds with one stone.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月9日星期二

Sublimation transfer printing and digital sublimation transfer printing,how to distinguish them?

When it comes to sublimation transfer printing and digital thermal transfer, many people will confuse the concept of the two, in fact, there is a difference between them. This article will introduce it.

Sublimation Transfer Printing

1. Thermal transfer two printing methods thermal transfer has two printing methods, one is sublimation (model gallery used) transfer method, one is thermoset transfer mode, sublimation means refers to the use of heat up The color paste produced by the disperse dye is printed on the printing paper by screen or gravure, and the pattern on the printing paper is transferred onto the desired medium. The thermosetting transfer method refers to the use of thermosetting ink (also known as hot melt adhesive). After printing the printed paper with screen printing, the pattern on the printing paper is transferred to the products such as t-shirts and garments. The two printing methods have obvious differences in application. The sublimation transfer method is mainly applied to chemical fiber fabrics and coated with heat. On the hard material of the transfer coating, the thermosetting transfer method is mainly applied to the pure cotton product. The difference in texture between the two printing methods is that the sublimation (the second-hand model of the model) does not change the original texture of the material after the transfer, and the feel and look are good. After the thermosetting pattern is transferred, a layer of gel is formed on the surface of the attached object, which is inferior in hand and airtight. The two printing methods have their own advantages and disadvantages in production and production, each with its own characteristics.
2. What is thermal transfer: Generally speaking, thermal transfer is a transfer technology and product that uses a thermal transfer device (such as sublimation ink,sublimation paper and subliamtion printer) to heat the pattern and image on the thermal transfer paper to 180c0- -230c0 transfer printing technology on different material media, thermal transfer technology was first applied in the textile printing and dyeing industry, shoe industry. Later, with the development of the times and the advancement of technology, the application fields are increasing. Especially the emergence of digital technology and the emergence of personalized consumption concepts have made the application of thermal transfer technology more popular and extensive. The application products are endless and cover almost all material fields. . For example, metal, wood, stone, ceramic, glass, pvc, leather, chemical fiber fabrics can be transferred to beautiful patterns and images using thermal transfer technology to produce and produce exquisite products.

3. The traditional sublimation thermal transfer of several technical methods Traditional sublimation thermal transfer technology has three kinds: silk screen thermal transfer, gravure (copper plate, electric engraving version) thermal transfer, offset thermal transfer. The traditional sublimation thermal transfer feature is printed.

Sublimation Printing

4. Digital thermal transfer digital thermal transfer is based on the traditional sublimation thermal transfer combined with digital printing technology to print pattern images in a non-printed form of a new technology (model library used second-hand). It is characterized by the application of digital printing technology to print color patterns and images without plate making, saving plate making process and cost, so it is suitable for the production of personalized products.

The technical feature of digital thermal transfer is that digital printing machine uses dedicated thermal transfer color printing ink and thermal transfer printing paper.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月8日星期一

when the piezoelectric photo printing machine paper jam,what should we do?

What should I do if the piezoelectric photo printing machine prints the paper during the printout using the photo machine? It should stop or pause the printing and handle the printing paper jam in time. Because the photo machine has a paper pick-up problem during the printout process, it is easy to cause the printout pattern to be scratched, ink-stained, and need to be reprinted to waste consumables and manufacturing time, and even cause damage to the head components in severe cases. For example, paper has a problem with the piezoelectric nozzle being broken. However, the nozzle is the core component of the photo machine, and the price is also very expensive. The nozzle is damaged due to a small printing paper failure, which is a problem that cannot be ignored.

The digital textile printer prints the paper jam problem only in time to deal with it. This is a very easy to solve the fault. The printing paper jam problem often has the following reasons. We just need to find the reason and solve it in time. I will analyze the problem where you want to help you.

1. The nozzle nozzle spacing is too small

Piezoelectric Photo Printing Machine

The distance between the nozzle and the medium is too small, which is the root cause of scraping. Under normal circumstances, the space between the photo frame and the paper is too small, so if the paper is adjusted, it is better to keep the thickness of the coin. . If the thickness of the printing paper medium is too thick, the distance between the nozzles of the lower nozzles can be appropriately adjusted.

2. Gasket damage problem

For example, the photo frame small frame gasket can raise the position of the shelf to a certain extent, reducing the friction. Once the damage is easy, the height of the nozzle is lowered. At this time, we need to replace the small frame and other treatments.

3. Paper feed deviation and paper feed is blocked

When the pattern is output, the left and right deviation of the pattern is checked to check whether the paper feed wheel on the photo machine platform rotates normally. If one of the paper feed rollers does not rotate, it is prone to paper misfeeding, paper deviation or Paper jams and arches cause printing paper; in addition, the printing medium is uneven, the paper is loose, the suction system is abnormal, the printing consumables cannot be close to the platform, or the surface unevenness of the consumables is too large, and the paper jam problem may occur. In particular, some wallpaper makers, in order to meet the requirements of the customer's three-dimensional picture, use the embossed effect of the wallpaper, thepiezoelectric photo machine nozzle can be adjusted to a range of 3mm, and the thermal foaming machine is 1.75mm, once it is higher than this value, Severe wear on the nozzle structure, resulting in damage.

Inkjet Printer

Finally, when the photo printout is too long, if the length of the printout paper is too long, the paper pattern outputted at the time of printing is not properly wound up. The paper is continuously laid down when printing, and will be stacked on the ground. If it is rolled up, it will block the paper from being laid down and cause the paper to bulge on the platform, and the printing paper will appear.
Therefore, these reasons are easy to cause the photo inkjet printer to print the crep paper. The operator carefully pays attention to the printout. When the problem ccurs, the printing and squeezing of the photo machine can be easily suspended, and the problem of printing the crepe paper can be easily solved. Good nozzles can also avoid printing pattern scratches and need to reprint problems, saving material consumables and production time.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月4日星期四

Why sublimation transfer printed T-shirt turning yellow,how to deal with it?

If we simply say thermal transfer paper, or sublimation transfer printed T-shirt , I believe that there are many people who don’t know. But you can look at the various patterns on your t-shirt, is it a simple understanding of the thermal transfer paper. Let's talk about why the thermal transfer paper will change color.

With the arrival of summer, many thermal transfer practitioners have started using sublimation printer to produce t-shirts. For some experienced friends,the production of thermal transfer t-shirts is relatively simple. However, for some novice friends,thermal transfer t-shirts are still prone to various minor problems. Below, the relevant personnel of the thermal transfer paper company will introduce the common problems of thermal transfer t-shirts. Solution.

Question 1: Thermal transfer t-shirt turning yellow

The case of thermal transfer t-shirt yellowing is more common, and the reasons for this phenomenon are often the following.

Sublimation Transfer Printed T-shirt

1. The heating time is too long. It is well known that cotton t-shirts will appear yellow after a long period of high temperature. This is mainly due to the material of the t-shirt and is not unique to thermal transfer technology. Therefore, everyone must pay attention to the time in the production of thermal transfer t-shirts. Usually 20-25s is enough, don't increase the heating time privately because you are afraid of the transfer is not complete.

2, t-shirts contain cotton. A lot of friends don't know much about cotton materials. In fact, the t-shirts we usually see are usually low in cotton, usually 80. The less the cotton content, the less likely it is to yellow during the transfer process, but if it reaches 130 or more, everyone should pay special attention, and the t-shirt will often appear yellow. Therefore, when you choose a t-shirt, you must choose the right one. Do not blindly pursue the cotton content.

Question 2: T-shirts fall off after transfer

Image peeling after t-shirt transfer is also common, and most of this problem is caused by the quality of the thermal transfer t-shirt. Thermal transfer t-shirt paper must choose some more reliable companies, do not covet cheap, with some small manufacturers or t-shirts of companies that are just beginning to do thermal transfer, often caused by quality, but caused by Shedding situation.

Another situation is caused by insufficient pressure on the heat press machine. In fact, this is also a quality problem, so as with the above, there is not much explanation.

Question 3: Maintenance of thermal transfer t-shirt

Sublimation Printer

The thermal transfer t-shirt is actually no different from the ordinary t-shirt. The only thing that needs everyone's attention is not to expose it to ultraviolet light for a long time (the ink is easy to decompose). When not wearing it, put it in a dry environment. Avoid image shedding caused by moisture.

In fact, it is essentially a problem we often encounter in the use of dye sublimation paper to make thermal transfer t-shirts, which is what we still need to improve. I believe that we will be able to overcome this weakness in the near future.

Large format inkjet printer nozzle lacks color, some reasons to tell you why.

When using a large format inkjet printer, there are inevitably some minor problems. But if the nozzle of the wide format printer is lacking in color, how can we solve it? In fact, when this phenomenon occurs, we can do maintenance work to reduce the occurrence of lack of color. I will summarize some points for you, and there will be a solution when there is a lack of color. You can refer to it.

Large Format Inkjet Printer

1. When we start working on the inkjet printer every day, I have to test it with white paper or other items. When it is determined that the printer pattern and color are complete, we can carry out the work.
2. If the printer is not used for a short period of time, the lack of color will occur. We will first remove the waste ink and then inspect and clean the nozzle. However, it should be noted that the cleaning of the nozzle cannot be performed too often, less than three times.
3. This phenomenon occurs if the wide format printing machine has not been used for a long time. Then we need to use a special nozzle cleaner for the nozzle to clean. To use the cleaning agent recommended by the manufacturer, do not use other cleaning agents at will, to avoid irreparable damage to the nozzle.
4. Check if the continuous ink supply has not been cleaned for a long time, and the lack of color will occur. We will thoroughly clean the ink bottle corresponding to the lack of color to the small ink cartridge. Then refill the ink. If it still appears, then we need to replace the continuous ink supply.

Inkjet Printer

5. Using the graphics software to create a color block of the missing color, and then repeated printing, can also play a certain effect.
The five methods are summarized by Nanjing Feiyue company, if they still can't solve the problem, should contact the manufacturer for the first time, let the manufacturers send professional technicians to carry out maintenance and solve. At the same time, do not arbitrarily solve it yourself, otherwise it will cause damage to the nozzle.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

2019年7月2日星期二

Dye sublimation paper absorbs ink properties, do you know what factors affect it?

The dye sublimation paper is a type of heat transfer printing paper which functions as a carrier during the transfer of the pattern. The sublimation transfer printing first uses special inkjet printing to print a special printing dye (ink) onto the transfer paper, and then the transfer paper printed with the pattern and pattern is in close contact with the fabric, and the transfer printing is performed at 200~230 °C. The machine is processed for 10~30s, and the dye is transferred from the printing paper to the fabric, and diffused into the interior of the fabric to achieve the purpose of coloring.
Sublimation transfer printing prints images on paper through high-speed, high-quality inkjet printers, eliminating the need for plate making, replacing screen
printing, and the patterns can be scanned by computer or scanning instruments, which is convenient, precise and easy to adjust. At the same time, the transfer pattern is clear, realistic, and the authenticity rate is high. The image is not easy to fade, fall off, and has a long service life. The printed product is soft and comfortable, and is more and more popular.

Dye Sublimation Paper

It is precisely because of its excellent performance that the digital sublimation paper must meet various requirements, such as high temperature resistance, shape stability and ink absorption, etc., especially the ink absorption performance has a sublimation inkjet paper. Great impact. The ink absorption of the base paper is too strong. If the ink absorption is too fast, it will cause bleed, and the ink absorption is too weak. If the ink absorption is too slow, the ink accumulation phenomenon will occur. These two phenomena will affect the thermal sublimation transfer. The performance of the paper, which in turn affects the transfer effect. Therefore, it is necessary to discuss the influencing factors of the ink absorption performance of the sublimation printing paper.

1. Influence of ink viscosity on ink absorption performance

The ink absorbing performance is not only related to the structure of the inkjet sublimation paper, but also to the viscosity of the ink itself. The viscosity of the ink is too small, the penetration is strong, and it is easy to penetrate the paper to produce a tinge phenomenon; the viscosity of the ink is too large, the penetration is weak, and it is easy to accumulate on the surface of the paper to produce a pile of ink. Both twilight and ink accumulation can have a serious impact on the transfer effect of the product, and such phenomena must be prevented during the production process. Specifically, the process parameters of printing pressure, temperature and time can be combined to determine the viscosity of the ink to ensure the printing quality of the pattern.

2. Influence of paper surface coating on ink absorption performance

Since the production process of the sublimation transfer paper is subjected to a high temperature environment, the strength performance of the paper is greatly lost, so it is necessary to increase the speed of inkjet printing and drying, and shorten the time the paper stays in a high temperature environment, so as to retain the sublimation as much as possible. The strength properties of the transfer paper meet the requirements of the product. This puts higher requirements on the ink absorbing performance of the paper. Under the condition of ensuring a certain amount of ink absorption, it is necessary to enhance the ink absorbing performance of the paper and increase the ink absorbing speed of the paper.
To this end, a layer of paint is applied to the surface of the paper as a coating to achieve rapid ink absorption. In order to meet the requirements of the national environmental protection policy, the inks currently used for the production of sublimation transfer paper are mostly water-based inks. Most of the ink components are alcohols and polyamide compounds. In order to ensure the quality of the transfer pattern, it is required that the surface coating layer does not contain a component capable of reacting with the ink used, and the coating of the surface coating layer is usually made of silicone or polyvinyl acid.

3. Influence of paper structure on ink absorption performance

The ink absorption of paper refers to the ability of the paper surface to receive the

Sublimation Paper

transfer ink at the moment of imprinting, the ability of the paper surface to be wetted by the printing ink, the ability of the paper surface to absorb certain ink components, and the ability of the paper surface to fix and retain a uniform ink film. The comprehensive embodiment. Paper absorption ink is divided into two stages, one is the pressure infiltration stage: at the moment of printing press imprinting, depending on the printing pressure, part of the ink transferred to the surface of the paper, including pigments, binders, etc., is simultaneously pressed into the paper. In the pores. The second is the stage of free penetration. This stage is from the paper leaving the embossing area until the ink is completely dry, mainly relying on the capillary action of the paper fibers to absorb the ink. At this stage, the absorption rate of the ink on the paper determines whether the printed matter has gloss, and whether powdering or offsetting occurs.

Paper is a porous material with a large number of small gaps or pores inside the paper. If the paper's pore structure and ink characteristics do not match, it will lead to a series of printing failures. When the pores between the paper fibers are small, the capillary action of the fibers is destroyed, the ink absorption performance will be poor, and when the pores are large, the ink absorption of the paper is too strong, and if the ink used at this time is low in viscosity, When the printing pressure is large, the ink will penetrate into the back of the paper, and the offset phenomenon will occur, so that the print cannot exhibit the desired color saturation on the surface of the paper, which affects the quality of the printed matter.

In addition to the basic requirements of general coated sublimation paper, the base paper of the sublimation transfer paper has certain requirements on the tightness and air permeability of the base paper. The base paper has a tighter degree,generally above 0.9g/cm3, and the air permeability is smaller. If the base paper is too tight and has a large air permeability, the ink will penetrate into the back side of the base paper during the inkjet process, causing a bleed phenomenon. During the sublimation transfer process, the sublimated ink will also spread out through the back side of the base paper. , affecting the transfer effect. If the base paper is too tight and the air permeability is small, in the inkjet process, the ink does not easily enter the inside of the paper, accumulates on the surface of the paper, is easily smeared, and causes ink accumulation, which also affects the transfer effect. The ink absorption performance of the sublimation transfer paper base paper is also closely related to the paper void ratio, the filling amount, the sizing amount, etc., and the void ratio is a fundamental factor affecting the ink absorbing performance of the paper, and the ink particles enter the paper inside through the gaps.

The size of the void ratio directly affects the speed at which the paper absorbs ink and the amount of ink absorbed. The amount of filling will affect the void ratio of the paper, which will affect the ink absorption performance of the paper. The type of filler will be different, and the affinity for the ink will be different, which will also affect the ink absorption performance of the paper. Whether it is in-sizing or in-slurry sizing, it will affect the hydrophilicity of the paper, which will affect the absorption of ink by the paper.

4. Influence of other factors on the ink absorption performance

In addition to the above factors, the ink absorbing performance of the heat transfer sublimation paper is closely related to the moisture content of the paper, the pressure during printing, the temperature, the time, and the like. The paper fiber is a hydrophilic substance. When the water content of the paper is high, a hydration layer is formed on the surface, which is disadvantageous for the ink binder to be combined with the fiber, and even affects the penetration of the binder, so that the absorption of the ink by the paper is lowered. Especially for oily inks with water repellency, this effect is more prominent. At the same time, the presence of the hydration layer also hinders the absorption of oxygen by the paper, delaying the process of oxidative polymerization of the ink, which is extremely disadvantageous for the absorption of ink on the paper sheet (especially the oxidized conjunctival drying type ink). Therefore, the water content of printing paper should not be too high. Taking into account other factors, the moisture content of the paper before printing is generally controlled at 4% to 8%. In addition, the printing pressure, temperature and time will also affect the ink absorption performance of the sublimation transfer paper. The printing pressure directly affects the pressure infiltration phase of the paper absorption. The temperature affects the viscosity of the ink and the drying speed of the ink. It also affects the length of pressure and temperature contact with the paper. In the actual production process, these factors must be comprehensively considered, and the production and printing process parameters should be reasonably determined to obtain qualified sublimation transfer paper.

2019年7月1日星期一

Why textile printer has poor ink and unevenness,three reasons to tell you

During the use of daily equipment, it is inevitable that the printer will have poor ink and unevenness, especially in the field of civilian nozzles, nozzles with small nozzle diameters, which is more likely to occur, leading to the problem. There are three types:

1. Climate reasons

Textile Printer

When the outside temperature is too low or too high, it will cause the ink of digital printer itself to condense, the fluency is damaged, and the volatilization is not normal. The external performance is that the nozzle is not smooth. Solution: When the weather is hot in summer, add an air conditioner to the workshop, keep it ventilated, and do not place the inkjet printer in direct sunlight. When the temperature is cold in winter, turn on the heater, warm the car with a small sun or install a heater on the ink outlet of the nozzle. Keep the digital textile inkjet printer at a temperature between 15° and 40° and a humidity between 30% and 70%.

2. Reasons for the nozzle

The nozzle nozzle is blocked, resulting in abnormal ink discharge, and there are broken needles and missing wires. It is necessary to perform ink cleaning on the nozzle to observe whether the state of the inkjet has a waterfall flow line. If it doesn't work, you need to clean the nozzle with a cleaning solution. If it is serious, you need to remove the nozzle and then perform ultrasonic cleaning after soaking. If it doesn't work, you need to replace the nozzle. In the daily maintenance process, the state diagram of the nozzle needs to be printed out every day.

3. The ink supply system is faulty

Digital Printer

On many manually adjusted inkjet printing machines, the negative pressure value is prone to too low and too high, which affects the normal flow of ink. When this happens, it is necessary to adjust the negative pressure even. If conditions permit, you can directly upgrade the negative pressure system to avoid this situation.

More Info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co.,LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 15007920742
Address: Central Road 323, Nanjing, Jiangsu, China

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