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A kind of pet medical printing substrate and its production process

A production process and printing-based technology, applied to the field of PET medical printing substrate and its production process, can solve the problems of unsatisfactory barrier property, complex production process, low heat resistance, etc., achieve simple and easy production process, reduce production cost, the effect of reducing equipment operating costs

Active Publication Date: 2019-10-15
江苏华信高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of current medical printing substrates such as low heat resistance, unsatisfactory barrier properties, and complicated production processes, the present invention provides a PET medical printing substrate and its production process, which can be improved by blending modification. The heat resistance and barrier properties of PET medical printing substrates reduce the production cost of substrates

Method used

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  • A kind of pet medical printing substrate and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 20Kg polyethylene terephthalate, 20Kg titanium dioxide, 4Kg polyethylene glycol (PEG-1000), 4Kg talcum powder, 0.2Kg antioxidant 1010, 0.3Kg antistatic agent (ethoxy lauramide) Mix evenly, then carry out vacuum drying at 75°C for 5 hours, so that the water content is lower than 400 ppm, and extrude to prepare functional masterbatch. Then fully mix 100Kg polyethylene terephthalate, 20Kg polyethylene 2,6-naphthalate, and 40Kg functional masterbatch, and plasticize and melt in a twin-screw extruder with vacuum exhaust , The heating temperatures of the 9 zones of the extruder screw are: 250 °C, 250 °C, 260 °C, 270 °C, 270 °C, 280 °C, 280 °C, 280 °C, 285 °C. Set the temperature on both sides of the hanger-type die to be the same: 270 °C; the five zones in the middle are the same: 265 °C; the temperature of the film lip is 260 °C, extrude to form a uniform film with a thickness of 100 μm, and the film is calendered at 20 °C Extrusion and shaping in the middle of the roller. ...

Embodiment 2

[0045] 20Kg polyethylene terephthalate, 20Kg titanium dioxide, 5Kg polyethylene glycol (PEG-1500), 5Kg talcum powder, 0.5Kg antioxidant 168, 0.4Kg antistatic agent (ethoxylauramide) Mix evenly, then carry out vacuum drying at 85°C for 6 hours, so that the water content is lower than 400 ppm, and extrude to prepare functional masterbatch. Then fully mix 100Kg polyethylene terephthalate, 20Kg polyethylene 2,6-naphthalate, and 50Kg functional masterbatch, and plasticize and melt in a twin-screw extruder with vacuum exhaust , The heating temperatures of the 9 zones of the extruder screw are: 260 °C, 265 °C, 280 °C, 285 °C, 285 °C, 290 °C, 290 °C, 290 °C, 290 °C. Set the temperature on both sides of the hanger-type die to be the same: 270 °C; the five zones in the middle are the same: 275 °C; the temperature of the film lip is 270 °C, extrude to form a uniform film with a thickness of 100 μm, and the film is calendered at 25 °C Extrusion and shaping in the middle of the roller. T...

Embodiment 3

[0047]20Kg polyethylene terephthalate, 24Kg titanium dioxide, 6Kg polyethylene glycol (PEG-1000), 6Kg talcum powder, 0.8Kg antioxidant 1010, 1.0Kg antistatic agent (ethoxy lauramide) Mix evenly, then carry out vacuum drying at 80°C for 6 hours, so that the water content is lower than 400 ppm, and extrude to prepare functional masterbatch. Then fully mix 100Kg polyethylene terephthalate, 30Kg polyethylene 2,6-naphthalate, and 40Kg functional masterbatch, and plasticize and melt in a twin-screw extruder with vacuum exhaust , The heating temperatures of the 9 zones of the extruder screw are: 250 °C, 250 °C, 270 °C, 270 °C, 275 °C, 280 °C, 280 °C, 280 °C, 290 °C. Set the temperature on both sides of the hanger-type die to be the same: 280 °C; the five zones in the middle are the same: 265 °C; the temperature of the film lip is 260 °C, extrude to form a uniform film with a thickness of 100 μm, and the film is calendered at 30 °C Extrusion and shaping in the middle of the roller. ...

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Abstract

The invention provides a Medical PET (Polyethylene Terephthalate) printing substrate and a production technology thereof. The production technology comprises the following steps: uniformly mixing PET, titanium dioxide, polyethylene glycol, talcum powder, an antioxidant and an antistatic agent according to a mass proportion of 1 : (1 to 1.2) : (0.2 to 0.3) : (0.2 to 0.3) : (0.01 to 0.05) : (0.01 to 0.05), drying and extruding, thus obtaining functional master batch; uniformly mixing the PET, 2,6-polyethylene naphthalate and the functional master batch according to a mass proportion of 1 : (0.2 to 0.3) : (0.4 to 0.5), adding the mixture in a parallel twin-screw extruder, melting and plasticizing, extruding through a die head, and entering a calender machine, thus forming a uniform membrane; trimming, tracking and rolling the film, thus obtaining a finished product-the Medical PET printing substrate. According to the production technology provided by the invention, blending modification is adopted, the heat resistance and the surface wetting tension of the Medical PET printing substrate can be increased, and the production cost of the Medical PET printing substrate is reduced.

Description

technical field [0001] The invention relates to a PET medical printing substrate and a production process thereof, belonging to the technical field of polymer material processing. Background technique [0002] With the development of the national economy and the improvement of living standards, people's medical care level has also been improved accordingly, which has accelerated the upgrading of medical service demand. The prevention and treatment of diseases in modern medicine largely rely on the inspection results of advanced medical equipment, which are mainly presented through various medical imaging films. At the same time, with the development of digital medical imaging technology, medical imaging has entered the digital age. In the corresponding medical imaging diagnosis, the dry film with the "film base" as the polyester (PET) film base has gradually matured. [0003] At present, the medical printing substrate used in the market is mainly double-drawn polyester film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L71/02C08K13/02C08K3/22C08K3/34C08K5/134C08K5/526C08J3/22B29D7/01B29C48/92
Inventor 周建石陈国强吴彬谢鹏贺欢
Owner 江苏华信高新材料有限公司