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Laser printing medium, preparation method thereof and coating layers

A laser printing and medium technology, applied in the direction of coating, etc., can solve the problems of easy paper jamming and poor printing image quality, and achieve the effect of not easy paper jamming, smooth printing and feeding, and good image color reproduction

Active Publication Date: 2015-12-23
SHANGHAI ALLECARD IMAGE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a laser printing medium and its preparation method and coating in order to overcome the problems of easy paper jamming and poor printing image quality when printing on the existing laser printing medium.

Method used

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  • Laser printing medium, preparation method thereof and coating layers
  • Laser printing medium, preparation method thereof and coating layers
  • Laser printing medium, preparation method thereof and coating layers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The first surface glue formula: (glue A-1)

[0037]

[0038] Add silicon dioxide into deionized water, disperse for 30 minutes with a tooth disc disperser, and the dispersion speed is 1200 rpm, then add ethylene-vinyl acetate copolymer emulsion, anti-sticking agent, antistatic agent, wetting and leveling agent, and stir Mix evenly to prepare coating glue A-1.

[0039] Apply the glue solution on transparent PET (commercially available, manufacturer Hefei Lucky Technology Industry Co., Ltd., model FP1) with a thickness of 100 μm by doctor blade coating method, dry with hot air, the maximum temperature of hot air is 90 ° C, and measure the coating after drying Thickness 12μm.

[0040] Second surface glue formula: (glue B-1)

[0041]

[0042] The preparation method is the same as glue A-1, and glue B-1 is obtained. Apply the same coating and drying method to the other side that has been coated with glue A-1, and measure the thickness of the coating to 15 μm after d...

Embodiment 2

[0045] The first surface glue formula: (glue A-2)

[0046]

[0047] Prepare the glue A-2 in the same way, apply the glue on one side of the white PVC material with a thickness of 250 μm by doctor blade coating, and obtain a coating with a thickness of 10.5 μm after drying.

[0048] Second surface glue formula: (glue B-2)

[0049] Use silica (SD-621, Beijing Aerospace Saide Technology Development Co., Ltd., particle size 13 μm) to replace the silica YH-200 in the glue B-1, and use water-based polyurethane to replace the polyacrylic acid in the glue B-1 The ester emulsion was coated in the same way to obtain a coating with a thickness of 16 μm.

[0050] After both sides are all coated, make printing medium 2, measure its performance (see table 1)

Embodiment 3

[0052] The first surface glue formula: (glue A-3)

[0053]

[0054]

[0055] Second surface glue formula: (glue B-3)

[0056]

[0057] According to the same method as in Example 1, the two surfaces of white PET with a thickness of 150 μm were coated respectively to prepare printing medium 3, and its properties were measured (see Table 1).

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Abstract

The invention discloses a laser printing medium, a preparation method of the laser printing medium and coating layers. The laser printing medium comprises a substrate and two coating layers, namely a first surface coating layer and a second surface coating layer, which are respectively coated on two surfaces of the substrate, wherein the first surface coating layer comprises inorganic pigment, water-based polymer, an anti-static agent, water and organic silicon emulsion and / or emulsifying wax; the second surface coating layer comprises inorganic pigment, water-based polymer, anti-static agent, water and organic silicon emulsion and / or emulsifying wax; a surface roughness Ra value of the first surface coating layer is 0.08 to 1.5 mum; a surface roughness Ra value of the second surface coating layer is 1.6 to 3.0 mum; a difference value of the surface roughness of the two coating layers is not less than 0.6 mum. According to the laser printing medium disclosed by the invention, not only can good printing quality be obtained, but also paper cannot be jammed during continuous high-speed printing, and particularly, the advantages of the laser printing medium can be more obvious when plastic resin such as PET (Poly Ethylene Terephthalate) is used as the substrate.

Description

technical field [0001] The invention specifically relates to a laser printing medium, its preparation method and coating. Background technique [0002] Laser printer is a kind of printing output equipment, its working principle is based on electrophotography technology, that is toner is absorbed by positive and negative charges, and after a series of transfers, it reaches the surface of the printing medium and is heated on the hot roller (the temperature is usually as high as 180°C). , The toner is solidified under pressure, and finally the required graphic image is formed on the surface of the medium. Among them, the image quality of color laser printing is good, the printing speed is fast, the image is not easy to fade, and the storage time is long. It is a digital printing method that has developed rapidly in recent years and can be used in different fields, such as advertising, packaging, licenses, medical imaging films, etc. . [0003] With the advancement of technolo...

Claims

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Application Information

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IPC IPC(8): C09D123/08C09D133/08C09D7/12
Inventor 季玉秋王文良包加伴王文真
Owner SHANGHAI ALLECARD IMAGE MATERIAL
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