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Everything you need to know about DTF printing

Posted on May 6, 2023May 11, 2023 by kte

On the market, the DTF printing sticker may fall off for the following reasons:

1.The temperature is not high enough or the time is not long enough: when heat transfer, a certain temperature and time are needed to make the pattern fit with the clothes. If the temperature is not high enough or the time is not long enough, the heat-sensitive adhesive method is completely bonded to the clothes, resulting in the pattern falling off.

2.Not properly heated on the clothes: When ironing, pay attention to correctly placing the pattern on the clothes, and press it firmly to ensure that the pattern paste is firmly stuck on the clothes.

3.DTF film is not good: the bottom material is an important part of the bearing pattern of thermal adhesive in the process of ironing. If the bottom material is not good or the quality is not good, then the pattern will have problems in the process of fitting, resulting in falling off.

4.Improper washing conditions: Hot stamping should be carried out at least 24 hours before washing, and should not be cleaned with strong stain remover or bleach. Do not use too much hot water or put it in the dryer, which will cause the pattern to fall off.

The above are some reasons that cause the DTF sticker to fall off, refer to the above content to solve.

The following factors need to be considered when choosing DTF powder:

1.Applicable fabrics: Different hot melt powders are applicable to fabrics of different materials, such as cotton, polyester, etc. The corresponding hot melt powder should be selected according to the clothing fabric to be pasted.

2.Strong adhesion: Different hot melt powder adhesion strength is different, some can be reused, suitable for the need for several cold peeling occasions, some are suitable for one-time adhesion and strong viscosity occasions. Hot melt powder should be selected according to specific fit requirements.

3.Temperature needs: hot melt powder has different melting point temperatures, which should be according to the temperature range of the heat machine to choose the corresponding hot melt powder, to ensure the smooth transfer of hot stamping and other processes.

In addition to these factors, but also according to personal preferences and needs to choose different hot melt powder quality, brand and other related factors.

It should be noted that, in order to ensure the effectiveness and quality of white film printing hot melt powder, well-known brands and regular channels should be selected to buy and follow the manufacturer's instructions for use, in order to avoid unnecessary quality problems. Need to test Kenteer DTF hot melt powder we send samples free of charge, welcome to consult.

What are the matters needing attention when DTF printing processing?

DTF printing is a process in which a pattern is printed onto dtf film and then transferred to fabric. The following is the need to pay attention to the DTF printing processing:

1. Choose the suitable hot melt powder: choose the hot melt powder suitable for your fabric, needs, thickness, etc.

2. Set the appropriate temperature: the melting point temperature of hot melt powder is different, so it needs to be adjusted according to the actual situation. Too high a temperature will cause the fabric to deform, while too low a temperature may cause the pattern to fail to transfer completely.

3. Set the right pressure: The pressure of the ironing machine also needs to be adjusted according to the actual situation. Too high a pressure will cause the hot melt powder to escape, too low a pressure will cause the pattern to fail to transfer completely.

4.Adjust tearing speed: Different tearing speeds will also affect the transfer effect of hot melt powder.

5.Preheat in advance: In order to ensure that the hot melt powder and the fabric can be fully bonded, the fabric needs to be preheated in advance to avoid the hot melt powder after bonding is too weak and can not fit well on the fabric.

6.Fully drying: After the heat transfer printing, the fabric needs to be placed for a period of time to dry, avoid premature stacking or folding, and avoid sticky and damaged hot surfaces.

7.Pay attention to keeping clean: In order to ensure the quality and durability of the thermal transfer printing pattern, it should be stored in a dry, dust-free environment, and avoid long-term exposure to the sun, avoid the reverse side of the clothes stuck to dust, sand and other sundries, which will affect the thermal transfer effect.

Three things you must know about DTF ink

Posted on May 6, 2023May 9, 2023 by kte

DTF ink storage

DTF ink needs to be stored in a dry, light, temperature change proof place, it is best to put in the indoor temperature is appropriate. The ink bottle should be kept sealed, and the nozzle should be moistened before use and printed on a regular cycle, with several pages printed every few days to ensure that the ink does not dry up in the nozzle. In addition, also should pay attention to the ink bottle color do not mix, so as to avoid damage to the printer or color difference.

DTF ink use precautions

1. DTF ink should be placed in a dry, light, temperature change prevention place, and try to prevent dust and impurities attached to the ink.

2. When replacing the ink, it is necessary to thoroughly clean the nozzle to ensure a smooth flow and uniform injection of ink.

3. The ink bottle should be replaced or filled in time, so as not to dry out the nozzle or air into the nozzle to cause printing problems.

4. Print the color palette to ensure that the color is balanced, there will be no color distortion or color difference problems.

5. Avoid using too thick paper when printing, so as not to cause blockage or affect the printing quality.

6. The printing speed should be moderate. Fast printing may lead to problems such as blockage of the nozzle.

7. When you do not use the printer for a long time, clean the nozzle and turn it off to avoid ink drying up or damage to the nozzle.

DTF ink core raw materials

1.Pigments: Organic pigments and inorganic pigments are usually used. Organic pigments have high color saturation but poor light resistance; While inorganic pigments have better light resistance, but the color is not as bright as organic pigments.

2.Solvent: ink solvent can be water-based, and can also be an organic solvent.Water-based solvents green environmental protection, but not as water-resistant as organic solvents; Organic solvents can guarantee water resistance, but can produce volatile pollutants.

3.Auxiliary agents: including stabilizers, rheological agents, defoamer, antibacterial agents, etc. These auxiliaries can ensure ink stability, fluidity, oxidation resistance and prevent microbial contamination.

In short, the core raw materials of white film ink production generally come from the chemical field, which needs to be strictly screened and processed to ensure its quality and performance.

The advantages and investment of DTF printing?

Posted on May 6, 2023June 30, 2023 by kte

Firstly, DTF printing can print high-resolution images, making them sharper and more colorful.

Compared with traditional printing methods, DTF printing can make use of higher definition print head and digital control technology, so that the image is more vivid, and enhance the visual effect.
Secondly, compared with other printing methods, the input cost of DTF printing is lower. As long as there is a DTF printer and DTF materials, there is no need for expensive copyright fees and specific ink, which makes the production process more environmentally friendly, economical and sustainable. In addition, the use of CAD software to write the print design reduces unnecessary manual operation and labor costs.
At the same time, there is a faster production cycle. Thanks to the highly automated technology, DTF printing can complete the production of various products in a short time. This can be very beneficial for many businesses, especially when high productivity and rapid customer satisfaction are needed.
In short, DTF printing is a convenient and economical way to print. Whether it is used for labels, packaging, posters, or advertising, it can help enterprises effectively meet market demand,improve production efficiency and reduce cost expenditure.

How to select DTF printing materials?

The first thing to consider is the usage environment.

If the sign to be made is to be used outdoors, the DTF material must be durable enough not to be damaged by sun and rain. Generally, choosing DTF pet film with high gloss can enhance the resistance to sunlight, but also can ensure the brightness and color stability of the image. In addition, you can choose to use outdoor special high-viscosity adhesive powder to ensure that the waterproof performance is good. For indoor use, you can choose a cheaper DTF film or a relatively thin one.

Secondly

You need to consider the type of image to be printed. If the image to be printed requires better color saturation and accuracy, you should choose a DTF material with higher ink absorbency. In this case, it is best to choose front lit, a material that produces a sharper and more saturated color and is ideal for printing signs and posters with high resolution and complex patterns.

Third

There are budgetary considerations. Different brands and types of DTF materials vary greatly in price. In general, more expensive materials tend to be of higher quality. If the budget is insufficient, you can choose relatively low-cost materials, but pay attention to quality issues, so as not to cause unnecessary losses.
In short, the selection of appropriate DTF materials can ensure good printing effect, economic and practical and long service life, and other aspects of satisfactory results.

Therefore, the selection of appropriate materials is key, especially when considering the context in which printed materials are used, the type of printed image and the budget.

Kenteer's leading DTF PET film and DTF ink quality standard

Posted on May 6, 2023May 9, 2023 by kte

Kenteer DTF PET film quality standards include the following aspects:

1. Transparency: the printing film needs to have a certain transparency to ensure that the printing effect is clear and the color is bright.

2 Thickness and flatness: the thickness of the printing film should be uniform, and the surface should be flat, with no defects such as bubbles or dents.

3. Heat resistance: the printing film needs to have good heat resistance to ensure that it will not deform, melt or produce harmful substances in high-temperature environment.

4. Water resistance: printing film needs to have good water resistance to ensure that it will not be damaged in a wet environment.

5. Viscosity: Printing film needs to have appropriate viscosity, in order to stick to different surfaces, and maintain long-term stability.

6. Light resistance: The printing film needs to have good light resistance to ensure that it will not fade or deteriorate under sunlight or ultraviolet irradiation.

7. Safety performance: the printing film needs to meet the relevant national standards and not contain harmful substances to ensure the safety of the human body and the environment.

DTF film and ink matching performance?

1. Printing effect: DTF film should have a good printing effect, the image is clear and vivid, full and true color, no color bias, broken ink, and other phenomena.

2. Durability: DTF film should have strong light resistance, water resistance, wear resistance and other properties, to ensure that the printing effect can be maintained for a long time.

3. Melting point: DTF film should have a low melting point, can adapt to different types of printers and print head requirements.

4 Adaptability: DTF film adaptability is stronger, can adapt to the requirements of different pigments and ink, to avoid ink and printing film mismatch caused by color difference or quality problems.

For the matching performance of printing film and ink, the key is to ensure that the formula and performance of the two match each other, to ensure the consistency and stability of the printing effect. Therefore, in the choice of DTF film and ink, should be as far as possible to choose the same brand or the same series of products, Kenteer DTF film and DTF ink are to give full play to the advantages of the complementary effect between the printing effect is excellent. At the same time, attention should also be paid to the stability and shelf life of ink to avoid expired use or improper storage resulting in quality problems.

Kenteer DTF Ink quality standards include the following aspects:

1. Whiteness: DTF ink should have good whiteness. The higher the whiteness of high-quality white ink, the better the effect of printing.

2 uniformity: DTF ink should have good uniformity, that is, the pigment particles in the ink should be dispersed evenly, not large particles, uneven color.

3. Fluidity: the fluidity of DTF ink should be moderate, not too thick or too thin, affecting the printing effect.

4. Color saturation: the color of DTF ink should be high saturation, and the printing effect is natural and realistic.

5. Light resistance: printing ink should have a certain light resistance, to avoid the printed pattern because of long-term exposure to the sun or oxidation and loss of color.

6. Scratch and wear resistance: DTF ink should have a certain scratch and wear resistance, durable printing effect, not be easy to wear

7. Environmental protection: DTF ink should meet environmental protection standards, can not contain toxic and harmful substances, harmless to the human body and the environment.

What are the differences between traditonal screen printing and heat transfer printing?

Posted on May 4, 2023July 26, 2023 by kte

Many people don't know what screen printing is, or the names on the market are inconsistent. Today we will talk about the difference between traditional screen printing and heat transfer screen printing.

We see that many customizers use the basic principle that the graphic part of the screen printing plate can pass through the ink, and the non-graphic part of the mesh cannot pass through the ink. When printing, pour ink into one end of the screen printing plate, apply a certain pressure on the ink part on the screen printing plate with a scraper, and move towards the other end of the screen printing plate at a constant speed, and the ink is moved by the scraper from the image and text during the movement. Part of the mesh is extruded onto the substrate. Screen printing is one color and one plate. If it is printed on clothes, it needs repeated color registration to finally make the finished product, and the color registration is limited, so there will be problems of inaccurate color registration, and the gradient effect cannot be done, and the clothes will be scrapped. Screen printing is suitable for large-volume orders with few designs and colors. The screen printing ink is directly attached to the clothes without the feeling of sticking.
Heat transfer printing is also divided into screen printing and offset printing. If screen printing needs to print multiple colors, it needs to print one color at a time. Screen printing printers need to print multiple colors 4 times. Color printing can print several colors at a time. There is also a difference in cost for each color: screen printing requires additional money for one color, while color printing does not require additional money for several colors at a time. The two do not use clothes to print, but print ink on a thermal transfer printing substrates such as release film, and then hot stamp on clothes through a heat press machine. There is no limitation on color registration, and colorful effects such as photos and gradients can be produced. Heat transfer is bonded by hot melt adhesive, which has a sticky feel.Besides we produce different types of screen printing based on different chemicals and printing processes. Different types meet customers’ additional requirements and other fabrics include elastic effect, soft effect, anti-sublimation effect, puff effect, reflective effect, flock effect, silicone effect, care label, etc. What’s more, we produce chemicals for our printing, so that we can control the quality better.Different types are printed with different chemicals, taking elastic effect heat transfer sticker as an example,First, elastic transparent paste: print once

Second, elastic white paste: print twice

Third, hot melt glue: print twice

It needs to be dried after each process.

Our drying tunnel is 6 meters long and it stops cylinder type. It is We set the temperature to about 60-70℃. and it will need 15 minutes to take it; for UV infrared type, will need the 20s to 2 minutes.

How many types of heat transfer materials you know?

Posted on April 24, 2023June 30, 2023 by kte

In the heat transfer printing market, there are many heat transfer materials. The same product has different names in different regions, and the same series of thermal transfer materials also have many product numbers. Today let me share with you the basic knowledge of common heat transfer materials: heat transfer vinyl, PET release film, and heat transfer sticker.

1. Heat transfer vinyl

Heat transfer vinyl is a high-tech material for digital printing applied to heat-resistant textiles. Usually monochrome (except for printable lettering film that can be engraved with multi-color patterns), it is mainly used for printing numbers on sportswear, or engraving personalized patterns on fashion clothing. The lettering film is used for personalized customization, no need to open the plate, and it will be ready in 10 minutes.

We produce it by coating technology. Besides we produce many types with different effects based on customers’ requirements, such as solid color, glitter effect, hologram effect, metallic effect, flock effect, reflective effect, glow in the dark effect heat transfer vinyl, etc.

It is very easy to use, as long as you have a computer, cutting plotter, and heat press machine. First, make the design on the computer, then cut by cutting plotter or laser cutting machine, then weeding, then transfer the design on the fabric via heat press machine.

2. PET release film

PET release film is divided into cold peeling and hot peeling PET film, suitable for water-based/oil-based screen printing inks of various levels of heat transfer products, heat transfer with various characteristics, heat transfer printing substrates,

etc. The release film on the market can be customized into finished rolls and slitting and packaging into sheets. The main function of the release film is for peeling, anti-adhesion, and anti-static.

Heat transfer sticker

Heat transfer sticker is a customized product, and the type of heat transfer is confirmed according to customer needs, and detailed requirements such as heat transfer fabrics, washing fastness, and environmental protection are confirmed at the same time. Heat press can be one MOQ or bulk order. Heat press has clear and delicate images, soft and smooth feel, and is easy to operate. It is a new product in the 1990s and differs from traditional printing.

We produce them in different effects based on customers’ other requirements, such as elastic effect, soft effect, anti-sublimation effect, care label, flock effect, reflective effect, silicone effect, etc.

We have total 21 automatic printing lines and we produce chemicals for our printing.

DTF printing materials

DTF stands for 'direct-to-film' in printing. DTF printing is a new type of printing technology that has become popular all over the world in recent years. Because of its advantages of no weeding, no waste, and no need for set-up making, it subverts the traditional printing process, and DTF printing has become popular in the printing industry.

The principle of DTF printing is to print the pattern on dtf film and then transfer the pattern on the film to various fabrics after being pressed by a heat press machine. DTF printing is eco-friendly and pollution-free and meets the national environmental protection requirements.

What is even more commendable is that the actual color effect of dtf printing can exceed the actual effect of photos. Not only are the colors bright and the visual three-dimensional effect is strong, but also it has high washing fastness, which is not easy to fade after repeated washing, and is resistant to shrinkage and stretching. It is no wonder that dtf printing is one of the new garment printing techniques recognized by various garment enterprises in the past two years.

DTF printing equipment mainly includes printers, a powder spray powder machine, and a heat press machine. DTF printing can be printed in one piece or batches, with flexible inventory control, suitable for small-batch web orders and personalized customization. DTF printing equipment has a low investment threshold and low cost, which is the first choice for a small investment and large return.

Finally, a total set of dtf printing materials include dtf film, dtf ink, and dtf powder. We can provide all of them to save our customers’ purchasing time costs.

With our expertise in heat transfer printing, kenteerfilm can provide traditional screen and offset printing or DTF printing solutions that are tailored to your specific needs, whether it’s your machines, inks, or production processes

What materials are the screen printing PET film made of?

Posted on April 7, 2023May 6, 2023 by kte

The structure of traditional screen printing PET film is generally divided into substrate layer, release layer, printing layer and glue layer. The production process is as follows:

Select a suitable substrate film. The main substrates of screen printing
PETfilm are OPP, PET, PVC, CP, and PET is widely used. Because of its good stability, uniform tension, and extremely small thickness deviation of the film, PET is widely used.
Coating the release agent, the release agent plays the role of separating the printing layer and the substrate of the screen printing PET Due to the fast volatilization speed of the release agent, attention should be paid to controlling the viscosity of the release agent, that is, the solid content. At the same time, attention should be paid to controlling the transparency of the release agent and the uniformity of coating to avoid affecting the printing effect and peeling effect.
For printing ink, the drying temperature of the ink should be selected according to the solvent used. If the solvent is a quick-drying type, the drying temperature should be lowered. Pay attention to the printing color sequence of the thermal transfer film: first print the ink with low color transparency, and then print the ink with high color transparency, and apply one or more layers of white ink according to the pigment, so that the pattern level and tone after transfer are not affected by the background color of the workpiece Impact.
Coat the glue layer. After the printing layer is dried, apply adhesive glue (also called back glue) to ensure that the printing layer adheres to the surface of the substrate. According to different materials, choose the appropriate temperature to dry the film again.

Kenteer has 27 years of experience in the coating film production of heat transfer materials. Its main products include: heat transfer vinyl, customized heat transfer sticker, screen printing PET film, heat transfer equipment, heat transfer ink, etc. And we are always on the go for better high quality for Kenteer printing factories clients. If you have related needs, please contact us.

The solution to the tight release of cold peeling screen printing PET film

Posted on April 7, 2023May 11, 2023 by kte

You need to know why there is a cold peeling screen printing PET film in the market. Cold peeling screen printing PET film has the following advantages:

First, cold peeling screen printing PET film can peel together after the heat press, which can reduce labor costs, while hot peeling screen printing PET film must be peeled while the heat press, which must form an assembly line operation chain, resulting in an increased in personnel positions.

Second, there are some special fabrics, such as waterproof cloth, coated cloth and other fabrics, which are very thin and coated with colloidal materials. Only cold peeling screen printing PET film printed products can be used so that the fabric has sufficient properties after heat press. The fabric has enough time to restore its properties to ensure its adhesion and flatness after heat press; if it is a hot peeling screen printing PET film printed product, it is easy to wrinkle and warp, which will cause the material to be scrapped.

Tight release of cold peeling screen printing PET film when peeling, the reasons are as follows:

The area of the printed pattern is too large, and the viscosity of the glue and the penetrating power of the glue solvent are very strong, which leads to the formation of infiltration between the printing glue and the release layer. As a result, the cut edge is torn off tightly, and there are also phenomena such as discoloration, wrinkling, and a pungent smell.

Solution: Pay attention to adjusting the ratio of solvents (main solvent, secondary solvent, auxiliary solvent), and try to reduce the proportion of strong solvents. At the same time, adjust the viscosity of the glue, increase the solid content, and reduce the osmotic strength.

The viscosity of the ink is too low to dry. In the actual production process, in order to improve efficiency and improve fluidity, printers often like to lower the viscosity of the ink. Although the adaptability of printing has been solved and the efficiency has been improved, side effects have also followed. This will cause the solvent in the ink to penetrate into the release layer, and at the same time increase the difficulty of volatilization, causing us to seal all the solvent in the inner layer, forming a release layer and ink layer that are miscible. After hot stamping, we tear off both the bottom layer and the bottom layer together in cold tearing. The phenomenon shows that the peeling is very tight, the surface is very rough, the smell is pungent, and even the color remains.

Solution: Increase the viscosity of the ink and strengthen the guarantee of baking; factories with good conditions can use one printing and one baking to ensure layer-by-layer drying.

The release of screen printing PET film itself is peeled off tightly.

Test method: Take a blank screen printing PET film, use a film or 3M tape, and after bonding, do a tensile test and feel it through the hand. Conditional factories can use a general-purpose screw tensile tester for testing before printing to avoid unnecessary losses to you.

All our products have undergone pre-production raw materials and processes; in-production details and indicators; post-production standard tests to ensure that each batch of products meets the factory standards, and users can use them with confidence.

How to choose to use Kenteer pet release film?

Posted on March 15, 2023May 12, 2023 by kte

1.PET release film

Size: 39*54cm/48*64cm/50*70cmThickness: 75/ 100micronCustomization is available

Name	Code	Application	Suggested oil type
Hot peel matte coating	83011	offset printing	oil ink&water based ink
Cool peel matte coating	85211	Screen Printing	oily ink & water-based ink
Cool peel matte coating	85311	Screen Printing	oil ink&water based-ink & plastisol
Cool peel matte coating(more anti-static than 1185B-1)	85331	Screen Printing	oil ink&water based-ink & plastisol
Cool peel glossy coating	86211	offset printing	oil ink & water based ink
Hot peel matte coating(refers to 1183 1185B)	88011	Offset printing & Screen printing	oily ink & water-based ink
Cool peel matte coating(for washing water mark)	85212	Screen Printing	oil ink & water based-ink & plastisol
Laser transfer film	OKI	OKI laser printer
Laser transfer film	RICOH	RICOH
Digital printing film	HP INDIGO	HP INDIGO digital printer	HP INDIGO ink
DTF transfer film	EPSON L1800	EPSON L1800 printer	CMYK ink

2. Reflective heat transfer film

Silver reflective film & clear reflective film
Characteristic reflective of silver is
better than the clear
The clear can print different-color ink, the silver
can only print silver
Thickness: 170 micron
Size: 1m*50m/ 33*50cm /50*50cm

3、CTP film(computer-to-plate film)

White waterproof film &clear non-waterproof film
Rigid PET Materials and anti-curl, High definition
Suit for water based dye and Pigment inks, instant drying
Used for positive printing, plate making

4、Hot foil stamping film

Made of PET material, has a strong metallic effect
High hiding power, hard touch
Under high temperatures, no deformed, no glue out and fading
Thickness:100 micron
Size:31*50cm

5、Digital printing film

Professional printing film for indigo printing machine
Made of BOPET FIM and special release agent, shimmer
light hot peel printing film, thin and light
Thickness：75/110 microns
Size：48*32cm

What is easily affected by heat press printing and how to solve it

Posted on March 15, 2023May 4, 2023 by kte

The physical and chemical properties of ink mainly refer to its density, fineness, transparency, gloss, light resistance, heat resistance and acid, alkali, water, solvent (alcohol) resistance. We know that once there is a problem with the ink, it will easily lead to poor printing leveling. Printing is to transfer the ink to the surface of the paper, fabric, leather and other materials through the processes of plate making, ink application, and pressure on the original manuscript such as text, pictures, and photos. Therefore, the material of heat transfer printing ink is very important!

In general, the main factor of ink composition affecting ink adhesion is that the resin used in the ink production process does not have better wetting properties for the substrate. Therefore, the ink produced with this type of resin has poor adhesion.

The surface of the printing material: In order to ensure a certain adhesion fastness, the surface of the printing material needs to be treated before printing, so that the surface energy can reach more than 0.038N/m (BOPP).

The relative humidity and temperature of the printing workshop will affect the ink adhesion. After long-term observation and experiments, it is believed that with the increase of the relative humidity of the environment, the adhesion tends to rise at the beginning, but as the humidity continues to rise, the adhesion begins to decline again. This shows that the relative humidity suitable for printing has a critical value, and temperature is an important condition in gravure printing, which affects both drying and the tension of the printing material. If the temperature is set too high, it will not only affect the vertical overprint accuracy but also cause the ink to dry too "fast" on the substrate, resulting in a decrease in adhesion. The ambient temperature suitable for printing should be controlled below 30°C. Due to the influence of factors such as printing materials, ink layer thickness, and printing speed, the drying temperature is not the same. The general principle is that it should not be set too high.

Ink layer thickness:The influence of ink layer thickness on ink adhesion, in order to clarify the relationship between the two, ink adhesion tends to decrease with the increase of ink layer thickness.

keywords:heat press printing

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Email: info@kenteer.com

Author: kte