A kind of two-dimensional code film and its preparation process

A preparation process and two-dimensional code technology, applied in the field of two-dimensional code film and its preparation process, can solve the problems of roughness, high hardness of the two-dimensional code layer, low adhesion force of the two-dimensional code, etc. The effect of high yield and excellent line definition

Active Publication Date: 2021-01-12
DONGGUAN XINDE MACHINERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of network technology, more and more products currently use QR code printing, which is convenient for people to scan the code to understand product information and supplier brands, etc. However, few of the current packaging films are printed with QR codes. At the same time, At present, the anti-shedding effect of the two-dimensional code printed on the film is poor, and the adhesion of the two-dimensional code on the film is low. After repeated use, the part of the two-dimensional code will fall off, resulting in the accuracy of the two-dimensional code. The decline will affect the normal use, and the curing process of the two-dimensional code ink is not strictly controlled, which will easily lead to incomplete curing of the two-dimensional code and make the surface of the two-dimensional code ink rough. It will also easily lead to excessive curing of the two-dimensional code and make the layer of the two-dimensional code Excessive hardness will affect the flexibility of the film, and excessive curing will also easily affect the performance of the film itself

Method used

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  • A kind of two-dimensional code film and its preparation process
  • A kind of two-dimensional code film and its preparation process
  • A kind of two-dimensional code film and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation process for a two-dimensional code film, comprising the steps of:

[0045] A. Spraying ink: take the substrate film, spray two-dimensional code ink on the surface of the substrate film, and cure by UV light to obtain two-dimensional code coating;

[0046] B. Gluing: Coating the adhesive on the back of the substrate film, and curing it by heat to obtain the adhesive layer.

[0047] In the step A, UV light curing adopts a UV lamp, the distance between the UV lamp and the surface of the substrate film is 30mm, and the angle between the light of the UV lamp and the surface of the substrate film is 90°, and the UV The light source temperature of the lamp was 120°C.

[0048] In the step A, the two-dimensional code ink includes the following raw materials in parts by weight:

[0049]

[0050]

[0051] Wherein, the auxiliary agent is a mixture of thixotropic agent, slip agent and defoamer in a weight ratio of 1:2.5:1.8.

[0052] The curing resin is epoxy ...

Embodiment 2

[0063] The difference between this embodiment and above-mentioned embodiment 1 is:

[0064] In the step A, the UV light curing adopts a UV lamp, the distance between the UV lamp and the surface of the substrate film is 35mm, and the angle between the light of the UV lamp and the surface of the substrate film is 87°, and the UV The light source temperature of the lamp was 128°C.

[0065] In the step A, the two-dimensional code ink includes the following raw materials in parts by weight:

[0066]

[0067] Wherein, the auxiliary agent is a mixture of thixotropic agent, slip agent and defoamer in a weight ratio of 1:2.8:1.6.

[0068] The curing resin is polyester acrylate or polyether acrylate; the linking material is triglyceride or ethyl cellulose; and the photosensitizer is benzoin dimethyl ether.

[0069] The pigment is permanent orange or toluidine red; the diluent A is castor oil polyglycidyl ether; and the solvent is methylated ethanol.

[0070] The thixotropic agent ...

Embodiment 3

[0078] The difference between this embodiment and above-mentioned embodiment 1 is:

[0079] In the step A, the UV light curing adopts a UV lamp, the distance between the UV lamp and the surface of the substrate film is 40mm, and the angle between the light of the UV lamp and the surface of the substrate film is 83°, and the UV The light source temperature of the lamp was 135°C.

[0080] In the step A, the two-dimensional code ink includes the following raw materials in parts by weight:

[0081]

[0082]

[0083] Wherein, the auxiliary agent is a mixture of thixotropic agent, slip agent and defoamer in a weight ratio of 1:3:1.5.

[0084] The curing resin is urethane acrylate; the linking material is linseed oil or polyol rosin resin; the photosensitizer is benzoin ethyl ether or 2-hydroxy-2-methyl-1-phenyl ketone.

[0085] The pigment is carbon black; the diluent A is cresyl glycidyl ether; and the solvent is isopropyl acetate or isopropanol.

[0086] The thixotropic age...

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Abstract

The invention relates to the technical field of thin films, in particular to a two-dimensional code thin film and a process for preparing the same. The process for preparing the two-dimensional code thin film includes steps of A, spraying printing ink, to be more specific, acquiring base material thin films, spraying the two-dimensional code printing ink on the surfaces of the base material thin films, and carrying out UV (ultraviolet) photo-curing to obtain two-dimensional code coatings; B, carrying out gluing, to be more specific, coating adhesive on the back surfaces of the base material thin films, and carrying out thermal curing to obtain adhesive layers. The two-dimensional code thin film and the process for preparing the two-dimensional code thin film have the advantages that the process is easy to operate, convenient to control, high in production efficiency and low in production cost; the two-dimensional code printing ink can be completely cured by means of UV photo-curing without influence on the performance of the two-dimensional code thin film, the two-dimensional code coatings prepared on the surfaces of the two-dimensional code thin film are good in line sharpness anddifficult to fall off or fade, the two-dimensional code thin film which is a products is high in yield and stable in quality, and the two-dimensional code thin film and the process are suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of thin films, in particular to a two-dimensional code thin film and a preparation process thereof. Background technique [0002] With the rapid development of network technology, more and more products currently use QR code printing, which is convenient for people to scan the code to understand product information and supplier brands, etc. However, few of the current packaging films are printed with QR codes. At the same time, At present, the anti-shedding effect of the two-dimensional code printed on the film is poor, and the adhesion of the two-dimensional code on the film is low. After repeated use, the part of the two-dimensional code will fall off, resulting in the accuracy of the two-dimensional code. The decline will affect the normal use, and the curing process of the two-dimensional code ink is not strictly controlled, which will easily lead to incomplete curing of the two-dimensional code and make...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/24C09J7/25C09D11/30C09D11/38C09D11/101C09D175/14C09D5/00C09D7/61
CPCC08K3/36C08K3/40C09D5/002C09D11/101C09D11/30C09D11/38C09D175/14C09J2423/046C09J2423/106C09J2427/006C09J2429/006C09J2467/006C09J2469/006
Inventor 李伯安李权
Owner DONGGUAN XINDE MACHINERY TECH
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