Silkscreen printing ink to the shoes upper, especially silkscreen printing ink to the upper of sports shoes generally need to have the following properties:
● Ink curing firmness is good, strong adhesion, ink screen printing to the shoes upper fabric need to have a strong adhesion, tear resistance, scratch resistance, friction resistance and water resistance
● Strong tensile strength, high tear strength after ink curing, the reason is that high value-added sports shoes are generally suitable for intense sports wear, such as playing basketball, running, mountaineering, skating, etc., in such a harsh environment, whether the ink screen printed on shoes upper or other production materials of shoes need to have strong tear resistance
● The ink needs to have a strong bending resistance after curing, because the ink screen printed on shoes upper, especially the ink screen printed on sport shoes upper needs to withstand more bending, and needs to have stronger mechanical strength
● Ink curing need to have good yellowing resistance, excellent weather resistance, the ink screen printed on shoes upper, most of the time received outdoor sunlight exposure, under strong ultraviolet radiation, thermoplastic ink (including PVC, TPU, LSR) is easy to yellowing, yellowing of thermoplastic ink greatly affect the appearance of shoes, greatly reduce the added value of shoes
● The ink needs moderate hardness after curing, about 40-50 Shore hardness is better,because the ink screen printed on the shoes upper ink on the one hand must have strong mechanical properties, on the other hand, mush to be comfortable, ergonomic, light, soft, comfortable wearing experience can better meet the current consumer demand
● The ink screen printed on shoes upper need to have a good design ideas, from its logo, pattern, lines, colors need have a good visual impact, take the upper screen printing silicone ink as an example, HD silicone with glossy or matted silicone, as well as some colorful colors and special, trendy design elements can attract young consumer groups
● The ink screen printed on shoes upper needs have good environmental performance, with China's accession to the WTO, to speed up the pace of trade with countries around the world. At present, developed countries, especially the European country,the environmental protection requirements of industrial products become stricter, the materials especially chemical materials applied to sports shoes need to have a good ecological environmental protection ability, take screen printing silicone ink as an example, the basic element of silicone ink is additive liquid silicone rubber, its components, vulcanization process, vulcanization by-products are recognized in the world as a new type of environmental protection materials
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