The main process of digital direct spray double -sided printing

Digital direct printing is that the pattern that needs to be printed through the image software is processed, and the computer control system is sprayed directly to the fabric to form a flower -shaped pattern through the nozzle of the inkjet printed machine according to the requirements of the inkjet printed machine. The main process of digital direct spray double -sided printing is: pattern image processing → jet parameter settings → fabric slurry → drying → injection → drying → steaming → water washing → water washing → finishing → finished products.

Pattern image processing

Digital printing sample sources include digital images, paper -like or textile cloth samples. If it is a digital image, when the accuracy is high enough, you can directly printed inkjet printing on the digital printing machine, and the paper -like or textile cloth sample must be scanned first to form digital images and then perform diagrams and printed printing. Essence However, the number pattern formed by scanning from paper -like or textile cloth is often unclear or many mixed colors, which will affect the quality of double -sided printing. Therefore, these miscellaneous colors must be removed during the image stage. Perform color dividends.

Jet parameter settings

Whether it is primary or second -forming double -sided digital printing machines, according to the needs of different fabrics or different patterns, control the total ink volume and so as to penetrate on demand to avoid mixed colors during double -sided printing; secondary forming double double -sided double -shaped double -sized double -soors Facial digital printing machines also need to flip the draft to form a gray diagram, and then form a gray curve based on the gray graphic diagram, and calibrate different identification points at different positions to make the camera catch the ink marks of positive infiltration and accurately locate the jet.

Fabric

Digital direct jet printing is to print the ink directly on the surface of the fabric. In order not to infiltrate the pattern, the fabric needs to be placed before the printing.

There are four types of digital printed slurry equipment: panels, traditional printed machines, toll -up fixed machine and dedicated slurry machine. Because some double -sided printed fabrics require the same color on the front and back of the same color, the higher the color consistency, the better, and the tablet and traditional printed machine are scraped the slurry on the single side. Poor difference; if it is a two -sided printing of the same flower or different flowers, because the color of the fabric is not required to be consistent with the two sides of the fabric, the above 4 types of equipment can be used for slurry. At present, in order to pursue efficient and clean production, the upper slurry of double -sided printed fabrics is mainly carried out on the tie fixed machine and dedicated slurry machine.

There are currently many species of slurry that are suitable for digital direct injection printing, including soda, urea, sodium alginate, DGT -6, AF -10, Pink, etc.

Steam

Before steaming, for wool and regenerative cellulose fiber fabric, it is best to transparent or wet to ensure that it has sufficient water content, so that the fabric has sufficient hair color and bright color. The fiber types are different, and the steaming time is different. Synchronous fabrics such as cotton, hemp, regenerative cellulose fiber, and active dyes are only combined with the fiber bonds when steaming. The extended time will cause some dyes to be severely hydrated, reducing the fibrous rate of dyes on the fiber;

Protein fiber fabrics such as silk, wool, etc. The active dyes are not only combined with the fiber bonds when steaming. Most of the active dyes in the hydrolysis part of the active dye are similar to acid dyes, and they still have affinity for protein fibers. Therefore, the steaming time is extended. This part of the maternal dye will continue to combine the inter -molecular force with protein fiber, thereby increasing the upper dye rate. Therefore, it is recommended that protein fiber fabrics steam at least 15 min. For darker colors, the steaming time is required.

Wash

Because the solid content of the slurry on the slurry of the digital inkjet printing is relatively low, and the upper slurry layer is relatively thin, the amount of slurry of the fabric is not much. In addition, digital inkjet printing is a precise jet controlled by a computer, and there will be no excessive ink residual on the fabric. Therefore, it is not as fierce as traditional printed water was washed when washing. The control of the water washing time and speed is mainly determined by the thickness and color of the fabric. The thick fabrics and the color of the color are longer. The water washing time needs to be longer.