33results about How to "No edge warping" patented technology

The invention discloses a perspective film and a manufacturing method thereof. The perspective film comprises a perspective membrane and a piece of backing paper, wherein the perspective membrane is printed with a developing printing layer; a plurality of light holes are densely distributed on the developing printing layer; the perspective membrane is adhered to the backing paper. In the invention, the developing printing layer is directly printed on the perspective membrane and makes images spray drawn on the perspective membrane clear; and the plurality of light holes are densely distributed on the developing printing layer, so the light-transmitting and perspective effects can be achieved while the clear image is guaranteed; and the perspective film is not holed, and the perspective membranes at the position of the light holes can also be inked and colored, so the image precision is high, the definition of the front image is much higher than that of the traditional one-way perspective, and the images can be displayed from backside without being influenced by ray intensity on two sides of a transparent plate and the developing printing layer is arranged on the perspective membrane, so production efficiency is greatly improved, manufacturing is more convenient, waste ratio is lower and production cost is low.

The invention provides a novel thermal contraction film slitting device of a swing structure. The slitting device comprises a rolling shaft, constant speed rollers, positioning rollers, a power roller, a detection roller, a CCD sensor, an enabling roller, a rolling-out roller, an unrolling and deviation rectification execution mechanism and a swing device. The rolling shaft, the constant speed rollers, the positioning roller (4), the power roller, the detection roller, the CCD sensor, the enabling roller, the rolling-out roller and the unrolling and deviation rectification execution mechanism are connected in sequence; the swing device comprises a driving system, a sleeve, a breather pipe, a cutting knife arm, slitting knife blades, a cutting knife arm fixing track and a cylinder, the slitting knife blades are fixed on the cutting knife arm which moves on the cutting knife arm fixing track, one end of the cutting knife arm fixing track is in sliding contact with the driving system of the swing device, and the other end of the cutting knife arm fixing track is connected with the cylinder; the driving system comprises a frequency converter, the frequency converter controls a servo motor and is combined with an eccentric wheel through a driving shaft, and when the eccentric wheel rotates, the cutting knife arm fixing track (14) making contact with the eccentric wheel does reciprocating motion because of changes of the rotation radius; a thermal contraction film penetrates through the slitting knife blades and is slit between the positioning rollers.