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2234results about How to "Reduce wrinkles" patented technology

Novel dyeing and finishing processing technology of micro polyester fabric

The invention relates to a novel dyeing and finishing processing technology of a micro polyester fabric. The novel dyeing and finishing process disclosed by the invention is characterized by comprising the following steps of: (1) pretreatment, namely carrying out cold rolling and stacking processing comprising three stages, namely cold stacking, hot alkali treatment and high efficiency washing, on polyester gray fabric; (2) presetting, namely carrying out high temperature tentering and presetting on a pretreated fabric white body by utilizing a setting machine; (3) dyeing, namely dyeing the preset fabric white body by adopting superfine fiber leveling agent; and (4) cleaning, namely carrying out cleaning post-processing on the dyed fabric to remove disperse dyes which are not set after fibres are dyed. According to the novel dyeing and finishing processing technology disclosed by the invention, an environment-friendly and low-energy-consumption cold rolling and stacking pretreatment technology is used for carrying out pretreatment on the micro polyester fabric, on one hand, desizing effect is good and good dyeing and finishing processing conditions are provided for dyeing, and on the other hand, crease mark of the fabric can be effectively reduced; meanwhile, a formula of a dyeing process additive can be adjusted, albafluid U is added to reduce fabric dyeing scratch, and dyeing defects can be prevented from being caused.
Owner:SHENGHONG GRP CO LTD

Electromagnetic forming device and method for micro fuel cell metal bipolar plate microchannel

The invention discloses an electromagnetic forming device and an electromagnetic forming method for a micro fuel cell metal bipolar plate microchannel, and relates to a micro fuel cell metal bipolar plate microchannel forming device and a micro fuel cell metal bipolar plate microchannel forming method so as to solve the problem of matching difficulty between micro male and female dies in the process of forming a microstructure on a metal thin plate based on stamping and other conventional plastic deformation means. The device comprises an upper template, a coil, a driving sheet, a die, a lower template and a fastening bolt; a groove is formed on the surface of a supporting frame so as to accommodate the coil; a circular through hole is formed in the center of the bottom of the groove so as to accommodate the die; the driving sheet is arranged above the die; and an axial lead of the coil is in upper and lower directions. The method comprises the following steps of: discharging to the coil to excite a strong pulsed magnetic field; generating induced eddy on the surface of the driving sheet so as to generate a magnetic field opposite to the magnetic field of the coil in the transient strong pulsed magnetic field; and driving a plate blank to make die attaching motion by using the driving sheet under repellent applied force between the magnetic fields. The invention is used for micro-forming.
Owner:HARBIN INST OF TECH
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