15 results about "Mylar foil" patented technology

The utility model discloses a self-adhesive label with a multi-layer reinforcing structure, and relates to the technical field of self-adhesive labels. The label protection device comprises a protection part, wherein the protection part is used for protecting the label to improve the strength; the label part is installed in the protection part, and the label part is used for being pasted on an object; wherein a reinforcing structure is arranged on the label part. According to the utility model, the reinforcing layer is arranged, specifically, after the label main body is pasted, the internal reinforcing layer plays a role in reinforcing the label main body, and the reinforcing layer can be made of various materials, such as a polyester film, a metal foil or a special composite material; the label body is arranged on the base layer and used for preventing the label body from being torn, punctured, abraded and corroded by chemical substances in the using process, the base layer in the label body is used for supporting the label body, and the strength is improved again by adopting a tough material with certain flexibility, such as paper or a plastic film subjected to special treatment.

Liquid crystal displays (LCDs) and methods of making LCDs are provided where a layered stack of components is secured with at least one piece of tape, such as black mylar tape. The layered stack is bonded to a cover glass and optionally a touch panel / sensor with an optically clear adhesive (OCA). Methods and apparatuses include at least one piece of tape secured to a front side of the layered stack such that the at least one piece of tape folds over the perimeter of the layered stack and is secured to a rear side of the layered stack.

The utility model discloses automatic arranging and packaging equipment for polyester films, which comprises a base, a conveying mechanism is mounted on the base, a first mounting frame is arranged on one side of the base, a coiled film conveying belt component is mounted on the first mounting frame, and the coiled film conveying belt component is used for conveying cylindrical coiled polyester films; a second mounting frame is arranged on one side of the base, and a packaging box conveying belt assembly is mounted on the second mounting frame and used for conveying packaging boxes. Through the arrangement of the taking and placing assembly, after the coiled film conveying belt assembly conveys the coiled film in place, under the cooperation of all structures, the supporting barrel extends into the inner side of the cylindrical coiled polyester film, and the sliding block is driven to move towards the direction of the baffle disc based on the work of the electric telescopic cylinder, so that all the arc-shaped elastic strips are raised; the cylindrical coiled polyester film is supported and fixed from inside to outside, and carrying is convenient.

This utility model discloses a polyester film extrusion die with a cleaning structure, belonging to the field of plastic processing machinery. Addressing the problem of incomplete cleaning of residues on the inner wall of existing die exits, the following solution is provided: The die body features a gradient cavity structure, with grooves on the side walls and trapezoidal cross-section scrapers. The bottom end of the scraper is connected to the inner cavity of the main rod via a threaded rod. Rotating the threaded rod adjusts the scraper position to ensure a tight fit against the gradient inner wall. A sliding seat and sliding frame are installed on the outer wall of the main rod to achieve lateral movement. An external protective sleeve covers the operating side hole, and the sleeve is connected to the sliding seat via a tension spring. A sealing plate with a compression spring is installed at the top of the inner cavity; the sealing plate remains in contact with the scraper during movement to prevent foreign objects from entering. This device, through scraper shape adaptation and position adjustment mechanisms, more effectively cleans residues from the inner wall. The protective sleeve structure prevents accidental contact with operating parts, ensuring the reliability and convenience of cleaning operations.

The invention discloses an optical-grade high-brightness polyester film and a preparation method thereof, the optical-grade high-brightness polyester film comprises a nanoscale multi-layer structure formed by PET layers and PEN layers which are alternately stacked, the total layer number is 350-700, and the total thickness is 30-60 [mu] m; wherein the refractive index of the PET layer ranges from 1.58 to 1.62, and the refractive index of the PEN layer ranges from 1.64 to 1.68; the average reflectivity of the film under the wavelength of 550 nm is larger than or equal to 98.5%, the light transmittance is larger than or equal to 91.5%, the haze is smaller than or equal to 0.5%, and the interlayer peel strength is larger than or equal to 3.0 N / cm. According to the invention, collaborative optimization of optical performance, mechanical strength and thermal stability is realized through a nanoscale multi-layer structural design in which PET and PEN are alternately stacked. Excellent optical performance is obtained through hundreds of layers of nano-scale alternating structures; the interlayer binding force is obviously improved through molecular modification of the laminated layers; and a uniaxial stretching process is adopted, so that the flexibility is kept while the layer thickness uniformity is ensured, and breakthrough is realized in the aspects of reflection efficiency, interface stability and processing yield.

The utility model provides a multi-layer re-pressing device for a polyester film, and belongs to the technical field of re-pressing devices. Comprising a base plate, an unwinding frame is fixed to one end of the base plate, a plurality of unwinding rollers are installed on the unwinding frame, a winding roller is arranged at the other end of the base plate, a fixing base is arranged in the middle of the base plate, and a lower pressing roller and an upper pressing roller which are used for re-pressing are arranged on the fixing base; a guide frame is arranged between the unwinding frame and the fixing base, guide plates are arranged at the positions, corresponding to the unwinding rollers, of the guide frame, the guide plates communicate with a dust removal air pump, a mounting groove is formed in the middle of each guide plate, the guide rollers are rotationally mounted in the mounting grooves, and a plurality of dust suction holes are formed in the inner wall of each mounting groove. According to the utility model, dust particles can be sucked and removed before re-pressing of the polyester film, the re-pressing quality is ensured, the film can be tensioned before and after re-pressing, the film laminating quality is further ensured, and the overall use effect is good.

This invention relates to the field of release film technology and discloses a low-adhesion self-adhesive release film and its preparation method, comprising: a substrate layer, a first buffer layer, a heat-stabilizing layer, a second buffer layer, an elastic reinforcing layer, and an improved release layer; the substrate layer uses polyester film as a supporting structure to provide mechanical strength and dimensional stability; the first buffer layer is disposed on the substrate layer and is tightly connected to the substrate layer by hot-pressing to initially absorb thermal stress. This low-adhesion self-adhesive release film and its preparation method utilize a six-layer composite structure design to prevent surface energy fluctuations from amplifying interfacial force changes, thereby reducing peeling difficulties and deformation at high temperatures and avoiding insufficient contact and lifting at low temperatures. The synergistic effect of the six layers further solves the overall instability caused by temperature sensitivity, reduces bonding misalignment and automatic peeling during production, and improves the reliability and environmental resistance of the bonding system.

An information handling system housing has a top opening that accepts a liquid cooling mount having a frame and plural blanks. The plural blanks are selectively removed to create an opening of appropriate size that fits one or more liquid cooling modules that have a variety of sizes. The blanks couple to the frame with screws or can come as perforated portions of the frame having the perforations covered by sheets of mylar. In one example embodiment, the blanks are formed from bent sheet metal to have snaps that couple to the frame.

To provide a polyester film for a protective film of a folding type display which is excellent in mass productivity and does not generate cracks in a folding part in order to provide the folding type display which has no possibility of generating disturbance in an image displayed in the folding part after repeated folding.SOLUTION: The polyester film for the protective film of the foldable display satisfies the following conditions: (1) The refraction index in the bending direction is 1.590 to 1.620 (2) The refraction index in the direction of the folded portion is 1.670 to 1.700 (3) The refraction index in the thickness direction is 1.520 or less (4) The concentration is 1. 380g / cm3 or more (Here, the bending direction refers to a direction orthogonal to the folded portion when the polyester film is folded. ) SELECTED DRAWING: Figure 1

The present invention provides a mold release film which can be peeled with a low, uniform force even with a thin ceramic green sheet, in which there is no risk of occurrence of defects such as pinholes, and which has excellent smoothness. The present invention is a mold release film comprising a base material, which is a polyester film having a width of more than 900 mm but not more than 2,500 mm, and a mold release layer, said mold release film being characterized in that, when R1 is defined as a range of 100 mm from one end in the width direction and toward the center when the mold release film is wound in a roll, R2 is defined as a range of 50 mm from the center and toward both sides in the width direction, R3 is defined as a range of 100 mm from the other end in the width direction and toward the center, and A1, A2, and A3 are defined as the number of coarse protrusions which have a height of 500 nm or more and which exist on the surface of the mold release layer in the respective ranges R1, R2, R3 as evaluated by a described method, the number of coarse protrusions represented by each of A1, A2, and A3 is in the range of 10-1,000 protrusions / m2, and a ratio X of the number of coarse protrusions calculated as X=((A1+A3) / 2) / A2 is 0.2-5.0.

The invention relates to the field of silk yarns, in particular to a metallic yarn preparation process which comprises the following steps: S1, plating metal on a polyester film in vacuum, and then coating a transparent resin protective layer to obtain a basic raw material film; s2, the basic raw material thin film is wound into a roll, and the roll is installed on a shredding device; s3, the two ends of the basic raw material film roll are shredded at the same time through two cutters of a shredding device; and S4, winding and collecting the silk yarn at the same time to obtain the metallic yarn. The shredding device comprises a base transversely provided with a first transverse groove, two side supporting plates symmetrically sliding in the first transverse groove, two rotating bases rotationally connected to the upper ends of the two side supporting plates correspondingly, two conical heads fixed to the inner sides of the two rotating bases correspondingly, a two-way screw I transversely rotating in the first transverse groove, and a two-way screw II transversely rotating in the second transverse groove. The two side supporting plates are in threaded connection with the two ends of the two-way screw I respectively. According to the shredding device, shredding can be conducted through the two cutters at the same time, and the shredding efficiency is high.

The invention discloses a fully thermoplastic heat sealable multilayer polyester based film that forms hermetic and easy opening packages with polyester containers or pouches and the use of this film in food packaging.

Liquid crystal displays (LCDs) and methods of making LCDs are provided where a layered stack of components is secured with at least one piece of tape, such as black mylar tape. The layered stack is bonded to a cover glass and optionally a touch panel / sensor with an optically clear adhesive (OCA). Methods and apparatuses include at least one piece of tape secured to a front side of the layered stack such that the at least one piece of tape folds over the perimeter of the layered stack and is secured to a rear side of the layered stack.

The invention discloses a water-based tape casting method for a leadless piezoelectric ceramic film, which comprises the following steps: synthesizing leadless piezoelectric ceramic powder by adopting a solid phase method, carrying out planetary ball milling on the synthesized powder, and carrying out water-based tape casting on the leadless piezoelectric ceramic powder to obtain the leadless piezoelectric ceramic film, the slurry is composed of leadless piezoelectric ceramic powder, deionized water, a composite dispersant, a binder, a plasticizer and an antifoaming agent. The defoamed slurry is poured into a casting machine hopper, a polyester film or silicified paper is adopted as a bearing film, the thickness of a wet film is detected in real time through a laser thickness gauge, and a drying box is provided with three temperature areas; and completely drying a tape-cast wet film in a drying box, stripping, putting the balanced green body film into a sintering furnace, and removing organic additive residues in the slurry. The method has the beneficial effects that the safety production control and solvent recovery cost is reduced, the slurry stability is high, the diaphragm quality is excellent, the technological process is efficient, and the overall production total cost is reduced.