Research on Method of Water Coating Transfer Printing of Helmet Shells
The appearance of the product was greatly improved after surface water coating transfer printing.However,the water coating transfer printing method was easier to achieve for products with a flat surface,but for products with a curved surface,such as the outer surface of a helmet shell,it was difficult and easily leaded to defects such as pattern imbal-ance,color fading,and incomplete parts.These defects greatly reduced the yield rate.With the help of a filling balloon as an auxiliary tool,the method of direct downward film transfer was adopted to effectively solve the problem of helmet shell transfer.The filling balloons could seal the holes in the helmet shell,wihch avoided disturbance and damage to the pattern during the transfer process.The weight inside the filled balloons could ensure smooth water transfer and avoided pattern rip-ples during the transfer process.The direct downward film transfer method involved inserting water into the workpiece a-long the vertical direction and synergistically pulling the film in multiple directions to complete the transfer process.This new transfer method was simple and easy to learn,and reduced the difficulty of transfer and improving the pass rate of transfer,which not only effectively solved the problem of water coating and transfer printing on the helmet shell,but also provided tools and methods for similar products to learn from.
helmet shellswater covered transfer printingdefectspattern proportional imbalancecolor fadingpat-tern incompleteness
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NSTL
万方数据
维普
