China's printing and dyeing machinery industry has introduced and digested foreign advanced manufacturing technology, and the performance of new printing and dyeing equipment has improved. The gap with foreign printing and dyeing machinery has gradually narrowed, but the gap is still very obvious.
The composition of domestic printing and dyeing equipment has moved towards a practical and free combination that meets the characteristics of the user's fabrics and craftsmanship. The printing and dyeing equipment is more suitable for the variety of fabrics in terms of structure, and the transmission is more focused on compact and reasonable structure, and the appearance is more rigid and bold. For example, the two-purpose tenter setting machine manufactured by the German MONFORTS technology can be used both as a cotton brace and as a chemical fiber fabric. The planetary gear box with small space and precise transmission is widely used in the transmission. In addition, printing and dyeing equipment has also made significant progress in energy saving, environmental protection. For example, LMH648 color soaping machine and LMH011 flat boiling machine use a pneumatic membrane valve that can control the water and gas consumption; LMHA/B straight roller mercerizing machine alkali circulation system is applied; it can save 10 high efficiency and energy saving Three-roller rolling mill came into being; the special CAD/CAM technology for printing and dyeing has been applied in pattern design, liquid mixing, color matching and web making.
However, judging from the current situation of equipment used by printing and dyeing enterprises, there is still a gap between domestically produced equipment and imported equipment. In terms of materials, imported equipment is made of steel plate, which is light and durable, with good strength and low temperature coefficient. The domestic equipment is generally made of cast iron, the processing process is complicated, and the appearance is large and bulky. In terms of transmission, domestic equipment is slightly inferior to imported equipment from any angle. For example, the Austrian-made Chima 16-color magnetic bar rotary screen printing machine not only has high precision of flowers, but also has high efficiency in use of each flower position, and it adopts mechatronic precision gear box transmission with less space, small volume and low power consumption. Domestically-made similar equipment 10 sets of color above the flower position has low precision, low efficiency, easy to damage transmission parts and short service life. In terms of electrical appliances, the efficiency of domestic printing and dyeing equipment is 5 percentage points lower than that of similar foreign products. In terms of design ideas, foreign equipment pays attention to the efficiency of equipment in its design scheme, strives to optimize the dyeing and finishing process, shortens the dyeing and finishing cycle, and reduces the consumption of chemicals and energy to achieve efficient, short-flow, energy-saving and consumption-reducing purposes. For example, the Ecntrol wet short steaming and dyeing machine jointly developed by MONFORTS and BASF in Germany saves the rolling, pre-baking and drying processes compared with the traditional padding process, saving on the premise of increasing the fixing rate by 10%~20%. 15% of energy, and can save the consumption of chemicals such as salt and alkali, and reduce the emission of pollutants COD; and the designers of China's printing and dyeing equipment manufacturers are lacking in this respect.
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