Super-white front-printing lamp box sheet and preparation method thereof

A blowtorch and box film technology, which is applied to coatings, instruments, display devices, etc., can solve the problems of low image clarity, color vividness distortion, and light box film texture, etc., to achieve good crispness, no image distortion, The effect of high flatness

Inactive Publication Date: 2020-11-17
郑州佳丽数码科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an ultra-white positive spray lamp box and its preparation method, which is used to solve the problems of poor texture, low image definition, distorted color brightness and light source appearing on the presented image in the prior art. irregular problem

Method used

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Examples

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preparation example Construction

[0049] In order to further understand the ultra-white positive blowtorch film of the present invention, the present invention also provides a preparation method of the ultra-white positive blowtorch film. The preparation method includes the following steps:

[0050] Step S1, preparing ink-absorbing layer coating solution

[0051] S11. Add the dispersant into the water, stir and pre-mix to obtain a pre-dispersion.

[0052] In a specific embodiment of the present invention, the stirring speed of stirring and premixing in step S11 is 400 to 600r / min (such as 420r / min, 450r / min, 480r / min, 500r / min, 520r / min, 550r / min, 580r / min), the pre-mixing time is 8-12min (such as 8.5min, 9min, 9.5min, 10min, 10.5min, 11min, 11.5min).

[0053] In a specific embodiment of the present invention, the dispersant is polyethylene glycol 200 or polyethylene glycol 400.

[0054]S12, adding silicon dioxide powder into the pre-dispersion liquid obtained in step S11, soaking for a period of time, and ...

Embodiment 1

[0068] A specific embodiment of the present invention provides an ultra-white positive blowtorch box, and the ultra-white positive blowtorch box includes:

[0069] The substrate layer, the substrate layer is a polyester film; the thickness of the polyester film is 150 μm, and the light transmittance is 38%;

[0070] Ink-absorbing layer, the ink-absorbing layer is arranged on the front of the substrate layer; in parts by weight, the ink-absorbing layer includes the following components: 65 parts of silicon dioxide, 500 parts of acrylic emulsion, 1.3 parts of dispersant, 0.3 parts of defoamer parts, 260 parts of water.

[0071] In the specific embodiment of the present invention, there is also provided a method for preparing an ultra-white positive spray lamp box sheet, and the preparation method includes the following steps:

[0072] Step S1, preparing ink-absorbing layer coating solution

[0073] S11. Add 0.13 Kg of dispersant (polyethylene glycol 200) into 26 Kg of water, a...

Embodiment 2

[0080] A specific embodiment of the present invention provides an ultra-white positive blowtorch box, and the ultra-white positive blowtorch box includes:

[0081] The substrate layer, the substrate layer is a polyester film; the thickness of the polyester film is 150 μm, and the light transmittance is 38%;

[0082] Ink-absorbing layer, the ink-absorbing layer is arranged on the front of the substrate layer; in parts by weight, the ink-absorbing layer includes the following components: 65 parts of silicon dioxide, 450 parts of acrylic emulsion, 1.8 parts of dispersant, 0.3 parts of defoamer parts, 260 parts of water.

[0083] In the specific embodiment of the present invention, there is also provided a method for preparing an ultra-white positive spray lamp box sheet, and the specific steps of step S1 are:

[0084] Step S1, preparing ink-absorbing layer coating solution

[0085] S11. Add 0.18 Kg of dispersant (polyethylene glycol 200) into 26 Kg of water, and pre-mix for 10 ...

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Abstract

The invention provides an ultra-white front-printing lamp box sheet. The ultra-white front-printing lamp box sheet comprises a substrate layer and an ink absorption layer, wherein the ink absorption layer comprises the following components in parts by weight: 60-70 parts of silicon dioxide, 450-550 parts of an acrylic emulsion, 0.8-1.8 parts of a dispersing agent, 0.2-0.5 part of a defoaming agentand 220-300 parts of water. The invention also provides a preparation method of the ultra-white front-printing lamp box sheet. The preparation method comprises the following steps: S1, preparing coating liquid of the ink-absorbing layer; S2, carrying out corona treatment on a polyester film; and S3, coating the polyester film pretreated in the step S2 with the ink-absorbing layer coating liquid in an extrusion nozzle coating manner, conducting drying to obtain the ink-absorbing layer, and performing winding to prepare the ultra-white front-printing lamp box sheet. The ink absorption layer ofthe lamp box sheet is high in adhesive force with the substrate, resistant to scraping, high in ink absorption speed, fine in picture, good in color reducibility and uniform in light transmission during light source irradiation, and the phenomenon that a light source is irregular is avoided.

Description

technical field [0001] The invention belongs to the technical field of light box sheet materials, and in particular relates to an ultra-white positive blown light box sheet and a preparation method thereof. Background technique [0002] At present, the light boxes on the market mainly include back-sprayed light boxes and front-sprayed light boxes. The coating of the back-sprayed light boxes is on the back, which is composed of a special coating and a white shading layer on it. The white shading layer makes the light diffuse. Afterwards, the ink penetrates through the light-shielding layer to the other side of the coating, presenting a positive image. The image is spray-painted on the back, and the front of the light box will not be damaged, and the viewing effect of the image will not be affected. However, it is generally only suitable for backlit light boxes , the scope of application is very limited. [0003] The front blowtorch film is coated on the front side. After the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D133/04C09D125/14C09D131/04C09D7/61G09F13/04C08L67/00
CPCC08J7/0427C09D143/04C09D125/14C09D131/04C09D7/61G09F13/04C08J2367/00C08J2443/04C08J2425/14C08J2431/04G09F13/0418C08K3/36C08L25/14C08L43/04C08L31/04
Inventor 颜景伟高志超
Owner 郑州佳丽数码科技材料有限公司
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