Polyester film used for bar code printing, and making method thereof

A technology of polyester film and polyester film layer, applied in the field of polyester film and its preparation, can solve the problems of aging resistance, high temperature resistance and tear resistance, fast decay of surface corona value, affecting ink gloss and other problems , to achieve stability, not easy to fall off, improve ink adhesion and printability, and long service life.

Active Publication Date: 2014-11-05
SICHUAN YUXI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In consumer electronics, daily consumer goods and other circulation fields, higher requirements are put forward for the printing activity and adhesion of barcode label inks, as well as aging resistance, high temperature resistance and tear resistance. Performances such as high temperature and tear resistance can no longer meet the needs of development
[0003] Traditional barcode labels belong to paper barcode labels, which have great performance defects in aging resistance, high temperature resistance and tear resistance, and are not resistant to washing, so they are extremely popular in the circulation of consumer electronics and consumer goods. big limit
[0004] At present, there are some polyester films used for barcode printing on the market. In order to improve the ink adhesion on the surface of the film, corona treatment is often used to enhance the ink adhesion on the surface of the film, but there are still some shortcomings as follows: (1) ink adhesion Poor focus, easy to fall off and poor stability; (2) Poor ink printing performance, affecting ink gloss; (3) Surface corona value decays quickly, not resistant to storage

Method used

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  • Polyester film used for bar code printing, and making method thereof
  • Polyester film used for bar code printing, and making method thereof
  • Polyester film used for bar code printing, and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Preparation of resin with high ink adhesion

[0041] At room temperature, 70kg glycidyl methacrylate, 24kg hydroxypropyl methacrylate, 3kgN-hydroxyethyl acrylamide, 3kg methacrylic acid acetoacetate ethylene glycol diester, 100kg solvent (mass ratio is ethylene glycol ether: Ethylene glycol diethyl ether = 20:1), and 0.5kg of benzoyl peroxide were added to the reactor with a condensing reflux device, stirred at a rotation speed of 200rpm, and mixed evenly; Gradually raise the temperature to 95°C, carry out the solution copolymerization reaction for 4 hours, stop heating, and the reaction ends. Then add 100kg of ethylene glycol ether and mix evenly, cool to room temperature and discharge to obtain a high ink adhesion resin with a solid content of 28%.

[0042] 2. Prepare high ink adhesion resin solution

[0043] (1) Formula (unit: kg)

[0044]

[0045] Preparation process:

[0046] According to the above formula, add the high ink adhesion resin into the mixing ...

Embodiment 2

[0048] 1. Preparation of resin with high ink adhesion

[0049]At room temperature, mix 60kg glycidyl methacrylate, 20kg hydroxypropyl methacrylate, 10kg N-hydroxyethylacrylamide, 10kg methacrylic acid acetoacetate ethylene glycol diester, 100kg solvent (mass ratio ethylene glycol ether: ethyl ether) Glycol diethyl ether = 1:20), and 0.5 kg of benzoyl peroxide were added to the reaction kettle with a condensing reflux device, stirred at a rotation speed of 200 rpm, and mixed evenly; the stirring rotation speed was increased to 330 rpm, and gradually The temperature was raised to 90° C., and the solution copolymerization reaction was carried out for 4.5 hours, and the heating was stopped to complete the reaction. Then add 100kg of ethylene glycol ether and mix evenly, cool to room temperature and discharge to obtain a high ink adhesion resin with a solid content of 29%.

[0050] 2. Prepare high ink adhesion resin solution

[0051] (1) Formula (unit: kg)

[0052]

[0053] P...

Embodiment 3

[0056] 1. Preparation of resin with high ink adhesion

[0057] At room temperature, mix 55kg glycidyl methacrylate, 15kg hydroxypropyl methacrylate, 15kg N-hydroxyethylacrylamide, 15kg methacrylic acid acetoacetate ethylene glycol diester, 100kg solvent (mass ratio ethylene glycol ether: ethyl ether) Glycol diethyl ether = 1:20), and 2kg of azobisisobutylcyanide were added to the reaction kettle with a condensing reflux device, stirred at a rotation speed of 200rpm, and mixed evenly; the stirring rotation number was raised to 330rpm, and gradually Raise the temperature to 100°C, carry out the solution copolymerization reaction for 4 hours, stop heating, and the reaction ends. Then add 100 kg of ethylene glycol ether and mix evenly, cool to room temperature and discharge to obtain a high ink adhesion resin with a solid content of 30%.

[0058] 2. Prepare high ink adhesion resin solution

[0059] (1) Formula (unit: kg)

[0060]

[0061] Preparation process:

[0062] Accor...

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Abstract

The invention discloses a polyester film used for bar code printing. The polyester film comprises a polyester film layer, at least one surface of the polyester film layer is covered with a high ink adhesion resin layer, the high ink adhesion resin layer is formed by coating a solution prepared by using a high ink adhesion resin, the high adhesion printing ink resin is obtained through a copolymerization reaction of glycidyl methacrylate, hydroxypropyl methacrylate, N-hydroxyethyl acrylamide and 2-(methacryloyloxy)ethyl acetoacetate mixed solvent and an initiator, contains a large amount of double bonds and ink-wet groups and improves the ink adhesion and printing property, and ink has strong stability on the polyester film and does not shed and has high gloss. The high ink adhesion resin solution is uniformly coated on the surface of the polyester film by adopting a micro-concave roll coating technology through controlling the specific parameters in the process to form a certain thickness in order to make the high ink adhesion resin layer tightly attached to the polyester film layer, and drying tunnel baking is carried out to make the high ink adhesion resin layer and the polyester film layer solidified and compounded in order to realize no shedding.

Description

technical field [0001] The invention relates to a polyester film and a preparation method thereof, in particular to a polyester film suitable for barcode printing and a preparation method thereof. Background technique [0002] Barcode is a graphic identifier arranged according to certain coding rules to express a group of information. It is easy to operate and mature in technology. It has been widely used in many fields such as commodity circulation, book management, postal management, and banking systems. In consumer electronics, daily consumer goods and other circulation fields, higher requirements are put forward for the printing activity and adhesion of barcode label inks, as well as aging resistance, high temperature resistance and tear resistance. Performance aspects such as high temperature and tear resistance can no longer meet the needs of development. [0003] Traditional barcode labels belong to paper barcode labels, which have great performance defects in aging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00C08F220/32C08F220/28C08F220/58B29D7/01
Inventor 张建军程国虎张宏刘宝林许显成
Owner SICHUAN YUXI ELECTRONICS TECH CO LTD
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