Biaxially-oriented polyester film with high compound fastness for TTR (thermal transfer ribbon) and preparation method of biaxially-oriented polyester film

A technology of biaxially oriented polyester and compound fastness, applied in the field of polyester film, can solve the problems of low adhesion of polyester film ink, film holes, printing loss, etc., and achieve high ink compound fastness and ink adhesion. The effect of improving and increasing the crystallization rate

Inactive Publication Date: 2019-01-08
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since silica is an inorganic substance, it cannot be connected with organic substances such as polyester, but can only be embedded; at the same time, silica particles have an irregular structure, and after being added to the polyester film, they are easily detached from the roller during the production process. , resulting in holes in the film, resulting in low adhesion of the polyester film ink, printing lost points during use, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of preparation method of biaxially stretched polyester film for carbon tape with high composite fastness, it may further comprise the steps:

[0034] A. Add 2%wt silane coupling agent to 93%wt toluene, prepare a solution, add 5%wt silica with a particle size of 1.5um, and disperse evenly in a high-speed disperser to obtain modified silica Silicon solution;

[0035] B. Add the modified silica solution to ethylene glycol and terephthalic acid, undergo semi-continuous esterification, polycondensation and drying to make PET polyester masterbatch, and make the content of silica particles 50000ppm ;

[0036] C. Dry the PET polyester chips in a fluidized bed at 140°C for 6 hours; add the dried PET polyester chips into the main extruder to heat and melt, and filter through a 15 μm disc filter to make the moisture content ≤ 50ppm;

[0037] Add 70wt% of PET polyester masterbatch and 30wt% of PET polyester chips into the auxiliary extruder to heat and melt, and separate t...

Embodiment 2

[0043] A kind of preparation method of biaxially stretched polyester film for carbon tape with high composite fastness, it may further comprise the steps:

[0044]A. Add 5%wt silane coupling agent to 89%wt toluene, prepare a solution, add 6%wt silica with a particle size of 2.0um, and disperse evenly in a high-speed disperser to obtain modified silica Silicon solution;

[0045] B. Add the silica solution modified by the silane coupling agent to ethylene glycol and terephthalic acid, and make PET polyester masterbatch through semi-continuous esterification, polycondensation and drying, and make the silica particles The content is 60000ppm;

[0046] C. Dry the PET polyester chips in a fluidized bed at 150°C for 5 hours; add the dried PET polyester chips into the main extruder to heat and melt, and filter through a 15 μm disc filter to make the moisture content ≤ 50ppm;

[0047] Add 75wt% of PET polyester masterbatch and 25wt% of PET polyester chips into an auxiliary extruder t...

Embodiment 3

[0053] A kind of preparation method of biaxially stretched polyester film for carbon tape with high composite fastness, it may further comprise the steps:

[0054] A. Add 4%wt silane coupling agent to 90%wt toluene, add 6%wt calcium carbonate with a particle size of 1.8um after preparing a solution, and disperse evenly in a high-speed disperser to obtain a modified calcium carbonate solution ;

[0055] B, the modified calcium carbonate solution is added in ethylene glycol and terephthalic acid, through semi-continuous esterification, polycondensation and drying to make PET polyester masterbatch, and the content of calcium carbonate particles is 55000ppm;

[0056] C. Dry the PET polyester chips in a fluidized bed at 160°C for 6 hours; add the dried PET polyester chips into the main extruder to heat and melt, and filter through a 15 μm disc filter to make the moisture content ≤ 50ppm;

[0057] Add 65wt% of PET polyester masterbatch and 35wt% of PET polyester chips into the auxi...

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Abstract

The invention discloses a biaxially-oriented polyester film with high compound fastness for a TTR (thermal transfer ribbon) and a preparation method of the biaxially-oriented polyester film. The biaxially-oriented polyester film comprises an upper surface layer, a core layer and a lower surface layer in sequence, wherein each of the upper surface layer and the lower surface layer is prepared fromPET masterbatches and PET chips in a mass ratio being (65-75):(25-35); the PET masterbatches are prepared through steps as follows: a modified inorganic nanoparticle solution is added to a PET reactant and subjected to esterification, polycondensation and drying together with the PET reactant, and content of inorganic nanoparticles is 40000-60000 ppm. The biaxially-oriented polyester film with high compound fastness for the TTR is high in ink compound fastness, excellent in smoothness and good in wear resistance and heat resistance and meets high-quality printing requirements for elaboration,clearness and the like.

Description

technical field [0001] The invention relates to the technical field of polyester films, in particular to a biaxially stretched polyester film for carbon ribbons with high composite fastness and a preparation method thereof. Background technique [0002] With the continuous application of printing media and the continuous pursuit of fine printing effects in the market, the current carbon ribbons used for barcode printing often suffer from printing loss and poor temperature resistance (such as blurred writing after electric ironing), while anti-fouling and Scratch resistance can not meet the process requirements. Since the performance of the base film directly determines the performance of the carbon ribbon, although the PET polyester film must be added with powder additives such as "opening agent" silicon dioxide during the production process, the silicon dioxide in the currently commercially available polyester masterbatch The particle size is 3.0 ~ 4.0um, and its effective...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/36B41J31/00B29C48/21B29C48/49B29C48/92B29C55/28
CPCB29C55/28B32B27/08B32B27/36B41J31/00
Inventor 张胜胡爱华
Owner ANHUI GUOFENG PLASTIC
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