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Detailed explanation of the process flow of heat transfer offset hot stamping

Detailed explanation of the process flow of heat transfer offset hot stamping

Create a transparent background file based on the image that the customer wants to print. For example, the following image is the original image sent by the customer, but only the rabbit in it needs to be printed.
If the resolution of the original image is too low, then we need to use AI, CDR, and other drawing software to create the image by tracing the edges. The resolution is decent, just use PSD and magic wand tools to remove the background. It should be noted that this transparency should be fully transparent and should not transition from having images to transparency. That is to say, the outline of the image must be clear at all times.
2. Layout. The most common printing film width in the market is 60 centimeters. If this image is printed 7 centimeters wide, there can be 8 in a row. The commonly used typesetting software is AI or CDR, and it can also be directly typeset in PSD. You can simply arrange one image or mix it with other images. After arranging the images, export them as png images or psd images with a transparent background. Because you want to print and output, it is recommended to choose CMYK mode when drawing, but png files can only be in RGB mode, and the conversion between the two will cause color loss. Therefore, it is recommended to use AI to directly save the psd file in CMYK mode.
3. Use PSD software to add a white ink channel to the image.
This is the focus of this article. Open the arranged transparent background file using PSD. Hold down the Ctrl key and click on the thumbnail of the layer panel graphics with the mouse to obtain a selection of all graphics. This selection can also be obtained using pen tools, lasso tools, and other methods. Then, in the menu bar, select 'Modify' under the menu and click 'Expand'. The pop-up interface will fill in '1' or '2' to slightly expand the selection area. Then select New Spot Color Panel in the upper left corner of the channel panel. The results are as follows, and then stored as a TIF file with a spot color (i.e. white ink) channel.
4. Open the TIF file with Montage, adjust the printing parameters, and output the printing file. Since different manufacturers are different, we won't go into too much detail here.
5. Use the printing software configured for the photo machine to print the image. This type of photo machine needs to be equipped with at least two nozzles, one for white ink and one for color ink. There are also four nozzles available, two white ink and two color ink, with fast speed but slightly reduced accuracy. During the printing process, the printer first prints color images on a dedicated release printing film, and then prints a layer of white ink on the color images.
6. Sprinkle hot melt powder. Sprinkle a layer of hot melt powder on the white ink, and after sprinkling, a layer of hot melt powder will stick to the white ink. Shake the blank area clean, and the machine will vibrate. Therefore, some people also call this hot stamping process shaking powder hot stamping. Finally, dry the powder in the oven at a temperature of about 110 degrees.
7. Use a hot stamping machine to transfer images onto clothes or other products.


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