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Composition for treating polyethylene (PE) film surface and PE film label

A surface treatment, polyethylene film technology, applied in the direction of synthetic resin layered products, coatings, instruments, etc., can solve the problem of ink falling off and so on

Inactive Publication Date: 2015-01-21
SHUNAN COATING TECH KUSN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the UV curable ink is printed on PE film or other film materials, it is still easy to cause the ink to fall off from the surface of the PE film locally or in a large area, so how to solve the printing adhesion of the UV curable ink on the surface of the PE film ( Fastness) has become an important issue in the manufacture of PE film labels

Method used

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  • Composition for treating polyethylene (PE) film surface and PE film label
  • Composition for treating polyethylene (PE) film surface and PE film label
  • Composition for treating polyethylene (PE) film surface and PE film label

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] The preparation of high acid value acrylic polymer A of the present invention:

[0065] (1) After cleaning the glass reaction tank, reflux condenser and feeding pipe respectively, install the reaction system.

[0066] (2) Add 90 grams of methyl methacrylate, 72 grams of n-butyl acrylate, 12 grams of acrylic acid, and 4 grams of hydroxyethyl methacrylate into the reaction tank respectively, and dissolve 0.4 grams of dibenzoyl peroxide in a beaker After adding 20 grams of toluene to the reaction tank, 50 grams of toluene and 200 grams of ethyl acetate were added to the reaction tank.

[0067] (3) The rotation speed of the stirrer is set to 100 rpm to start stirring, and the temperature of the constant temperature water bath is set to 90° C. to start heating.

[0068] (4) After the reflux of the condenser tube occurs, start timing for 1 hour.

[0069] (5) Add 30 grams of methyl methacrylate, 24 grams of n-butyl acrylate, 4 grams of acrylic acid, and 2 grams of hydroxyeth...

Embodiment 1

[0086] (1) Treatment agent test formula 1:

[0087] Table I:

[0088]

[0089] 611A-85: Polyurethane oligomer, Changxing Chemical Products.

[0090] Desmodur L75: Polyfunctional isocyanate oligomer, product of Bayer.

[0091] (2) Coating of treatment agent test formula 1:

[0092] (2-1) Apply treatment agent test formula 1 on the corona-treated front side of 85 μm low-density polyethylene (LDPE) film sample 1 with a #1 wire-wound rod to form a chemically treated surface layer.

[0093] (2-2) Put sample sheet 1 into an oven with a temperature of 60°C, and take it out after 5 minutes.

[0094] (2-3) Place sample sheet 1 under constant temperature and humidity conditions (23° C., 50% RH relative humidity) for 168 hours before proceeding to the next step.

[0095] (3) UV curable ink coating of sample sheet 1:

[0096] (3-1) Take the #1 wire-wound rod and hand-paint the yellow UV curable ink on the chemically treated surface layer of the PE film sample 1 to form an ink patt...

Embodiment 2

[0104] (1) Treatment agent test formula 2:

[0105] Table II:

[0106]

[0107] SR454: Ethoxytrimethylolpropane triacrylate (EOTMPTA), a product of Sartomer

[0108] PFAZ321: Multifunctional ethyleneimine bridging agent, Bayer product.

[0109] (2) Coating of treatment agent test formula 2:

[0110] (2-1) Apply the treatment agent test formula 2 on the corona-treated front side of the 85 μm low-density polyethylene (LDPE) film sample 2 with a #1 wire-wound rod to form a chemically treated surface layer.

[0111] (2-2) Put sample sheet 2 into an oven at 60°C and take it out after 5 minutes.

[0112] (2-3) Place the sample sheet 2 under constant temperature and humidity conditions (23°C, 50%RH) for 24 hours before proceeding to the next step.

[0113] (3) UV curing ink coating of sample sheet 2:

[0114] (3-1) Hand-paint yellow UV curable ink on the chemically treated surface layer of Low Density Polyethylene (LDPE) film sample 2 with #1 wire-wound rod to form an ink pat...

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PUM

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Abstract

The invention discloses a composition for treating a polyethylene (PE) film surface and a PE film label. The composition for treating a PE film surface comprises acrylic polymers having acid values of 40 to 150, multifunctional oligomers and / or acrylic monomers, bridging agents and diluting solvents. The composition for treating a PE film surface can be coated on a PE film so that a chemically treated surface layer is formed. The composition for treating a PE film surface and a PE film surface can undergo a chemical reaction so that firm chemical bonds are formed; and simultaneously, the multifunctional oligomers or the acrylic monomers of the composition for treating a PE film surface can chemically bond with components of UV ink. Therefore, ink patterns prepared from the UV ink can be firmly attached to the PE film surface by surface chemical treatment so that falling-off of the ink patterns is avoided and printing quality of a PE film label is improved.

Description

technical field [0001] The invention relates to a polyethylene film surface treatment composition and its label, in particular to a polyethylene film surface treatment composition capable of mediating chemically bonding polyethylene film surface and ultraviolet curable ink and its label. Background technique [0002] Label (1abe1) products can be made into finished labels and supplied to end customers after printing, stamping, edge tearing and other processing in printing factories. The surface materials of labels are printed with various patterns or characters, so the printing of surface materials Quality is very important. Common label surface materials can be divided into paper and film. Among them, the general paper surface materials are easier to print, and the printed ink is not easy to drop off; moreover, the printing quality of film surface materials requires more technical attention. Control, for example, for film materials with high surface tension such as polyeth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06C09D4/02C09D4/06C08J7/12C08J7/16C08L23/06G09F3/02B32B27/32
Inventor 刘启成丁玫珊李佩玲万治国
Owner SHUNAN COATING TECH KUSN
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