Remember the technology of heat transfer machine that you don't know.

1. What is digital thermal transfer printing?

Digital thermal transfer technology is a new technology which combines traditional thermal transfer technology with digital printing technology to print color images and patterns in the form of no plate.

Originally, this technology was not used in the clothing (textile) industry, but in billboards, signs, or ceramics. Later generations have extended it to the clothing industry.

Here, we will talk about digital thermal transfer printing, which is based on inkjet printing technology as a technical form, because it can ensure a certain width and length, and is suitable for industrial production.

Two, digital thermal transfer is a new technology to adapt to market changes.

Strictly speaking, digital thermal transfer technology and product market positioning is a personalized product market. It is a new technology to adapt to the development of personalized market and the demand of consumers for personalized products. It is also an effective supplement to traditional thermal transfer technology and traditional thermal transfer product market. Traditional heat transfer products are difficult to produce small batches of personalized products due to technical limitations and plate-making costs.

Therefore, in the traditional hot transfer market in the past, there was a period of blank market for the technology specially serving personalized products. The appearance of digital thermal transfer makes it possible to make personalized thermal transfer products. Moreover, the quality of digital thermal transfer product image pattern printing is far better than the traditional thermal transfer technology. This is also the reason why digital thermal transfer technology can be popularized and popularized in a few years.

Three, the understanding of thermal transfer and the characteristics of traditional heat transfer printing.

1. The concept of thermal transfer printing:

Generally speaking, thermal transfer printing is a kind of technology that uses thermal transfer equipment to transfer patterns and images on thermal transfer paper to 180C0-230C0 and print them on different materials.

The earliest thermal transfer printing technology is applied in textile printing and dyeing industry and shoe material industry. Later, with the development of the times and the progress of science and technology, the application fields increased continuously, especially the emergence of digital technology and the emergence of personalized consumption concept, which made the application of heat transfer technology more popular and widespread, and the application products emerged in endlessly, covering almost all the material fields. Such as: metal, wood, stone, ceramics, glass, PVC, leather, chemical fiber fabrics can use heat transfer technology to transfer exquisite patterns and images, production and production of exquisite products.

Printing method of heat transfer printing

There are two kinds of heat sublimation transfer patterns:

The paste produced with heat-rising disperse dyes is printed into printing paper by screen or gravure, and the pattern on the printing paper is transferred to the required medium.

The second is thermosetting transfer mode:

Thermosetting ink, also known as thermal melt glue, is used to print printed paper on silk screen, and then transfer the patterns on the printed paper to cultural shirts and clothing and other products.

The difference between the two methods is that the sublimation transfer method is mainly applied to chemical fiber cloth and hard material coated with thermal transfer coating, while the thermosetting transfer method is mainly applied to pure cotton products. Secondly, the texture produced by the two methods is also different. The thermal sublimation pattern does not change the original texture of the material after being transferred, and it has a good feel and appearance. After the thermosetting pattern is transferred, a layer of glue is formed on the surface of the attachments, and the handle is poor and airtight. The two printing methods have their own advantages and disadvantages in production and production.

Types of heat transfer printing

Thermal separation: thermal separation is also regarded as a "thermal stripping" transfer. She is the most popular type of transfer because when used on shirts, it has the same soft texture as screen printing. The reason why it is called "hot stripping" is that the ink will be divided into two parts when the paper is stripped quickly by hot press after 10 seconds when the transfer product is applied. Some of the ink will be transferred to the shirt while the other part will remain on the paper. This makes the transfer products have a soft texture.

Cold stripping: Cold stripping transfer printing is still very popular. It is mainly used for the printing of sportswear and foil printing on shirts. In fact, if you can operate correctly, transfer printing can choose either thermal separation method or cold stripping method. There is no difference in the effect and operation of thermal separation and cold stripping. The real difference lies in the use of paper and press. When you use cold stripping, the paper will be cooled for about 30 seconds before you peel off the paper. In this way, the ink will be completely left on the ready-made clothes, and the transferred patterns have a strong elastic texture similar to rubber. Cold stripping prints are generally not suitable for T-shirts with larger patterns because they are hot and can affect the air permeability of shirts. They can't be washed either because the rubber layer on the top of the ink will crack. Then, cold stripped as a "retro" type of printed products coming back, is being re used.

Inkjet transfer: inkjet printing is commonly used for direct printing of shirts and transfer products. The conversion of inkjet is a special kind of printing ink, which is automatically ejected under the action of high temperature pressure.

Characteristics and technical methods of traditional thermal transfer printing

There are three kinds of traditional heat transfer technology: silk heat transfer, gravure heat transfer (copper plate, electric engraving plate) and offset heat transfer. The traditional sublimation heat transfer printing is characterized by plate printing.

Four, heat transfer printing process

1. Thermal transfer printing is divided into transfer printing and transfer printing.

(1) Transfer film printing uses dot printing (resolution up to 300 dpi) to pre-print the pattern on the surface of the film. The printed pattern has rich layers, bright colors, ever-changing, small color difference, good reproducibility and can be achieved.