Cold transfer printing, a revolution in digital printing technology
Transfer printing was invented in the 1950s. It uses heat and pressure to sublime the dye to promote the peeling of the ink layer from the paper and transfer the pattern on the transfer paper to the fabric, that is, the sublimation method. This method has the advantages of convenient operation, high authenticity rate of finished products, low equipment investment cost, etc. However, this heat transfer printing technology mostly uses disperse dyes to transfer printing onto polyester fabrics. heat transfer printing dyes have a narrow range of options and applications, and many necessary dyes will decompose into carcinogenic aromatic amines during transfer. In addition, since the sublimation heat transfer printing inks are all prepared with solvents, there are great difficulties in the recycling of waste transfer paper, and the production of transfer paper has serious environmental pollution. Due to the above factors, the entire production process of printing transfer paper and transferring to fabrics cannot meet the 0eko-Tex standard required by developed countries' markets, resulting in products lacking competitiveness and failing to break through the green barriers of the market.