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PETG card-base for resident identity card and process for preparing same

A technology for resident ID cards and ID cards, which is applied in the processing field of modified polyethylene terephthalate, can solve the problems of uncontrollable product roughness, uncontrollable printing performance, anti-counterfeiting signs, and dioxin pollution of the environment. Achieve excellent physical and mechanical properties, good anti-whitening phenomenon, and excellent technical performance.

Active Publication Date: 2005-03-16
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

[0003] PETG sheets produced by blow molding and casting stretching process have excellent physical and mechanical properties, chemical resistance, air tightness, processing performance and low temperature resistance, and are not easy to break, no smell, non-toxic, transparency Higher advantages, but the products produced by casting, blow molding, and stretching processes have defects such as flow lines, uneven thickness, large heat shrinkage, and uncontrollable product roughness. The flow lines and uncontrollable roughness of the product affect the printing of the product Performance and anti-counterfeiting label processing; product thickness unevenness and thermal shrinkage rate are too large, after product lamination (heat sealing), under the influence of force, it is easy to deform and warp, so casting, blow molding, and stretching processes are used Production products cannot be used for card making
[0004] The raw material used in PVC card base is PVC (polyvinyl chloride) resin, which is a chlorine-containing product. Improper disposal of its waste can easily produce dioxins to pollute the environment; PVC and ABS card bases are exposed to light, high temperature, low temperature, etc. Decomposition, discoloration, deformation, fragmentation, stress whitening, etc. are easy to occur under the conditions, and the service life is short, generally two years, which cannot meet the requirement that the service life of the ID card is at least 10 years.

Method used

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  • PETG card-base for resident identity card and process for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] GS 2 Type PETG resin 100 parts, ADD 2 Type PETG resin 35 parts, rutile RSC5 type titanium dioxide 15 parts, ultraviolet absorber 3039 5 parts, antioxidant 168 8 parts.

[0056] Manufacturing process: Weigh the raw materials according to the formula, crush the PETG raw materials to 40 mesh, and dry; heat and melt, control the temperature at 102°C, control the first speed of high stirring at 900 rpm, stir for 10 minutes, and control the second speed of high stirring at 1800 rpm / minute, stirring for 3 minutes, high stirring three-speed control at 900 rpm, stirring for 10 minutes; temperature control at 53 ° C, stirring at 80 rpm, stirring time for 15 minutes; planetary exhaust extruder plastication: temperature control 160°C; five-roll calendering sheet, calender roll temperature control: No. 1 roll 160 °C, No. 2 roll 160 °C, No. 3 roll 185 °C, No. 4 roll 195 °C, No. 5 roll 165 °C; Stretch and lead-off roller temperature control: the first group 120°C, the second group...

Embodiment 2

[0058] GS 2 Type PETG resin 100 parts, ADD 2 25 parts of type PETG resin, 10 parts of rutile RSC5 type titanium dioxide, 3 parts of ultraviolet absorber 234, and 6 parts of antioxidant 1010.

[0059] Manufacturing process: Weigh the raw materials according to the formula, crush the PETG raw materials to 40 mesh, and dry; heat and melt, control the temperature at 90°C, and perform high-speed stirring. The first speed of high stirring is 850 rpm, and the stirring time is 15 minutes. The stirring time is 1700 rpm, the stirring time is 4 minutes, the high stirring speed is 850 rpm, the stirring time is 15 minutes; the low stirring speed is 60 rpm, the stirring time is 20 minutes, and the temperature is controlled at 50°C; planetary exhaust extruder Molding, temperature control is 170°C; five-roll calendering sheet, calender roll temperature control: No. 1 roll 150 °C, No. 2 roll 150 °C, No. 3 roll 180 °C, No. 4 roll 190 °C, No. 5 roll 160 °C ; Leading away stretching, the temper...

Embodiment 3

[0061] GS 2 Type PETG resin 100 parts, ADD 2 30 parts of type PETG resin, 12 parts of rutile RSC5 type titanium dioxide, 4 parts of ultraviolet absorber 3039, and 7 parts of antioxidant 1076.

[0062] Manufacturing process: Weigh the raw materials according to the formula, crush the PETG raw materials to 40 mesh, dry; heat and melt, the first speed of high stirring is 800 rpm, the stirring time is 12 minutes, the second speed of high stirring is 1600 rpm, and the stirring time is 5 minutes , the high stirring speed is 800 rpm, the stirring time is 10 minutes, the high stirring temperature is controlled at 85°C; the low stirring is 70 rpm, the stirring time is 18 minutes, and the temperature is controlled at 40°C; planetary exhaust extruder mastication , the temperature is controlled at 160°C; five-roll calendering sheet, the calender roll temperature control is: No. 1 roll 150 °C, No. 2 roll 155 °C, No. 3 roll 175 °C, No. 4 roll 190 °C, No. 5 roll 155 °C; From stretching, th...

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PUM

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Abstract

The invention discloses a PETG card-base for resident identity card and process for preparing same, wherein the PETG card base comprises GS2 type PETG resin, ADD2 type PETG resin, RSC5 type titanium dioxide, and the preparing process includes raw material preparation, high speed stirring, low speed stirring, extrusion machine plasticization, calendaring, stretching, cooling down, drawing, winding, and cutting.

Description

technical field [0001] The invention belongs to the field of processing modified polyethylene terephthalate, and in particular relates to a PETG card base for resident ID cards, and also relates to a manufacturing process of the PETG card base. Background technique [0002] PETG (modified polyethylene terephthalate) is a non-crystalline copolyester modified by ethylene glycol of PET (polyethylene terephthalate). The processing of existing PETG generally adopts thermoforming process Produce beverage bottles, packaging bottles, barrels, etc., or produce PETG films and sheets by extrusion casting, blow molding, stretching and other processes. The products are mainly used in the production of food, medicine, toys, and hardware packaging. [0003] PETG sheets produced by blow molding and casting stretching process have excellent physical and mechanical properties, chemical resistance, air tightness, processing performance and low temperature resistance, and are not easy to break,...

Claims

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Application Information

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IPC IPC(8): B42D25/23B42D25/40C08L67/03
Inventor 李振斌
Owner 江苏华信高新材料有限公司