Introduce The Method Of Heat Transfer Paper Heat Transfer

Introduce the method of heat transfer paper heat transfer: 1. The sublimation method is the most commonly used. Using the sublimation characteristics of disperse dyes, disperse dyes with a molecular weight of 250~400 and a particle diameter of 0.2~2 microns and a water-soluble carrier (such as sodium alginate) or an alcohol-soluble carrier ( Such as ethyl cellulose), the oil-soluble resin is made into ink, and it is processed on a transfer printing machine at 200~230°C for 20~30 seconds so that the disperse dyes are transferred to synthetic fibers such as polyester and fixed.

2. Migration method The dyes in the ink layer of the transfer paper are selected according to the properties of the fibers. The fabric is first treated by padding with a mixed solution composed of color-fixing auxiliaries and paste, and then transferred to the fabric from the transfer printing paper by hot-pressing electrophoresis in a wet state, and then the dye is transferred from the transfer printing paper to the fabric and fixed. Finally, it is steamed and washed. Wait for wet treatment. During dye transfer, greater pressure is required between the fabric and the transfer paper.

3. Melting method The ink layer of the transfer paper is based on dyes and waxes. By melting and pressing, the ink layer is embedded in the fabric, so that part of the ink is transferred to the fiber, and then the corresponding post-processing is performed according to the properties of the dye. When the fusion method is adopted, a larger pressure is required, and the transfer rate of the dye increases with the increase of the pressure.

4. The ink layer peeling method uses ink that can produce strong adhesion to the fibers after being heated, and the entire ink layer can be transferred from the transfer paper to the fabric under a small pressure, and then the corresponding color fixing treatment is carried out according to the properties of the dye.

The sublimation transfer printing process will design the various styles, colors, patterns, and patterns required by customers through computer design---computer color separation---electric engraving plate making---wheel gravure printing heat transfer paper---thermal Transfer processing to polyester chemical fiber fabrics, TC fabrics, long-pile fabrics, artificial leather, and other materials. This process of printing is more traditional than traditional silk screen printing and dyeing printing. In terms of richness of patterns, clarity of layers, bright colors, The degree of fidelity and environmental protection, washability, light resistance, and hand feel has been greatly improved. It is a popular printing and dyeing process that is highly respected in the world and the products are moving towards high-end products!

The principle of sublimation transfer printing The sublimation method is to use the sublimation characteristics of disperse dyes, using disperse dyes with a molecular weight of 250~400 and a particle diameter of 0.2~2 microns and a water-soluble carrier (such as sodium alginate) or alcohol-soluble carrier (such as ethyl acetate) Cellulose) and oil-soluble resin are made into ink, which is processed on a transfer printing machine at 200~230°C for 20~30 seconds, so that the disperse dyes are transferred to synthetic fibers such as polyester and fixed. The sublimation method generally undergoes three processes: before the transfer process occurs, all the dyes are in the printed film on the paper, the dye concentration in the printed fabric and the air gap is zero, and the size of the air gap depends on the structure of the fabric, yarn count and transfer pressure; during the transfer process, when the paper reaches the transfer temperature, the dye begins to volatilize or sublime, and a concentration of volatilization is formed between the paper and the fiber. When the printed fabric reaches the transfer temperature, the dye adsorption begins on the surface of the fiber until they reach a certain saturation value. Since the transfer of dye from paper to fiber is continuous, its adsorption rate depends on the rate of dye diffusion into the fiber. To make the dyes diffuse in a direction, a vacuum is often drawn on the bottom side of the dyed object to achieve directional diffusion and transfer of the dye; after the transfer process, after the dyed object is colored, the dye content on the paper decreases, and part of the remaining dye migrates to the Inside the paper, the amount of residual dye depends on the vapor pressure of the dye, the affinity of the dye for the size or transfer paper and the thickness of the printing film. The sublimation method generally does not require wet treatment, which can save energy and reduce the load of sewage treatment.

In addition to being suitable for synthetic fiber fabrics, transfer printing can also be used for the printing of natural fiber pure spinning and its blended fabrics. It has the following advantages: (1) No water, no sewage; (2) The process flow is short, the finished product is finished after printing, and no post-treatment processes such as steaming and washing are required; (3) The pattern is fine, the layers are rich and clear, High artistry and strong three-dimensional effect, which are beyond the reach of general printing methods, and can print patterns in photographic and painting styles; (4) The printing is colorful, and in the sublimation process, the tar in the dye is left on the transfer paper, which will not Contaminated fabrics; (5) High rate of genuine products, can print multiple sets of color patterns at one time without needing to match flowers; (6) Strong flexibility, after customers select patterns, they can be printed in a short period.

Sublimation heat transfer paper is currently mainly used for heat transfer printing 1. Heat transfer printing for clothing decoration cloth, curtain cloth, sofa cloth, umbrella cloth, handbag, carpet cloth, toy cloth, etc. 2. Thermal transfer decoration on the surface of high temperature-resistant plastic materials or plastic materials treated by spraying, baking paint, electrophoresis, etc., metal ceilings, curtain rails, metal tubes, handicrafts, hardware furniture, and other metal surface thermal transfer decoration. 4. 1. The front and back of all kinds of natural leather. 2. PU or PVC surface, such as PU or PVC coated fabric, etc.