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High-transparency thermosensitive recording material and preparation method thereof

A heat-sensitive recording material, heat-sensitive technology, applied in the direction of temperature recording method, copy/marking method, printing, etc., can solve the problems of low haze, high transparency, etc., achieve low haze, anti-oil and anti-plasticizer Excellent performance and uniform printing effect

Pending Publication Date: 2022-08-09
广东冠豪新材料研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as far as the current technology is concerned, it is difficult to obtain thermal recording materials that not only meet the requirements of high transparency and low haze, but also have good graphic information printing performance and application protection performance.

Method used

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  • High-transparency thermosensitive recording material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present embodiment provides a thermosensitive recording material, which sequentially includes a substrate, a coating layer, a thermosensitive color-developing layer and a protective layer; the preparation method of the thermosensitive recording material comprises the following steps:

[0034] 1. Then the coating solution (by weight fraction) is: 27 parts of Diaisheng VONCOAT AC-501 acrylic emulsion (glass transition temperature Tg=0°C), BASF Joncryl 67 styrene-acrylic emulsion (Tg=73°C) 58 parts, 0.75 part of phosphate ester wetting agent, 5 parts of cellulose rheology modifier, 4 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, Xia 4.25 servings of stone powder. Using water as a solvent, the above components are stirred and mixed, and the solid content is controlled to be 5% to prepare a coating solution for subsequent coating.

[0035] 2. The coating solution of the heat-sensitive color developing layer (by weight fraction) is: 1.5 parts of D...

Embodiment 2

[0039] This embodiment provides a thermosensitive recording material. Compared with Embodiment 1, this embodiment is only different in the coating solution of the thermosensitive color developing layer.

[0040] In this example, the coating solution of the heat-sensitive color developing layer (in parts by weight) is: 35 parts of modified PVA RS-1717, 2 parts of polyethylene wax (Tg=140°C, D90<1.0μm), glyoxal 5 parts, 2-anilino-3-methyl-6-dibutylaminofluoran (D90<0.5μm) 15 parts, 2,4-dihydroxydiphenylsulfone (D90<0.5μm) 30.75 parts, 4-hydroxyl -10 parts of 3-allyl diphenyl sulfone (D90<0.5 μm), 1.25 parts of phosphate ester wetting agent. Using water as a solvent, the above components are stirred and mixed, and the solid content is controlled to be 10% to prepare a coating solution for a heat-sensitive color developing layer.

Embodiment 3

[0042] This embodiment provides a thermosensitive recording material. Compared with Embodiment 1, this embodiment is only different in the coating solution of the thermosensitive color developing layer.

[0043] In this example, the coating solution (in parts by weight) of the heat-sensitive color developing layer is: 1.5 parts of Diaisheng VONCOAT AC-501 acrylic emulsion (Tg=0°C), BASF Joncryl 67 styrene-acrylic emulsion (Tg=73°C) ) 13.5 parts, modified PVA RS-171720 parts, polyethylene wax (Tg=140℃, D90<1.0μm) 2 parts, glyoxal 5 parts, 2-anilino-3-methyl-6-dibutylamino 15 parts of fluoran (D90<0.5 μm), 40.75 parts of 4-hydroxy 3-allyldiphenyl sulfone (D90<0.5 μm), and 1.25 parts of phosphate ester wetting agent. Using water as a solvent, the above components are stirred and mixed, and the solid content is controlled to be 10% to prepare a coating solution for a heat-sensitive color developing layer.

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Abstract

The invention belongs to the technical field of graphic recording materials, and discloses a high-transparency thermosensitive recording material and a preparation method thereof. The thermosensitive recording material sequentially comprises a substrate, a subsequent coating, a thermosensitive developing layer and a protective layer, the adhesive coating layer includes a first resin having a Tg < = 30 DEG C and a second resin having a Tg > = 45 DEG C. The thermosensitive recording material has the characteristics of high transparency and low haze while keeping excellent graphic and text information printing performance and application protection performance, and is very suitable for printing of transparent packaging materials.

Description

technical field [0001] The invention belongs to the technical field of graphic recording materials, and in particular relates to a highly transparent thermal recording material and a preparation method thereof. Background technique [0002] The use of transparent containers for product packaging is one of the most popular packaging methods nowadays. This method can facilitate manufacturers to display brands and products more intuitively, and at the same time allow consumers to directly see the quality and color of products before purchasing, so that the brand can More impactful on the shelf. Thermal recording materials can be widely used in food and other industries as information recording media due to their advantages of convenient printing and low noise. However, the existing heat-sensitive recording materials are usually opaque. Therefore, after the transparent packaging container is pasted with the opaque heat-sensitive recording material, it will seriously affect the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/34B41M5/26B41M5/333
CPCB41M5/34B41M5/262B41M5/333B41M2205/40B41M2205/36
Inventor 奎明红文辉杨艳曹晓利邓达丽
Owner 广东冠豪新材料研发有限公司
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