CN210287967U

CN210287967U - Structural color pressure-sensitive carbon paper

Info

Publication number: CN210287967U
Application number: CN201920967141.9U
Authority: CN
Inventors: 叶常青; 郑世容; 马金锁; 陈硕然; 张卫
Original assignee: Suzhou University of Science and Technology
Current assignee: Suzhou University of Science and Technology
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-10
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a structural color pressure is felt carbon paper, including carbon film, its characterized in that, carbon film comprises stratum basale and structural color dope layer, the close-packed structure of formation is periodically arranged for nanometer microballon to the structural color dope layer, close-packed structure makes carbon film has colored gloss. The utility model discloses an environment-friendly structural color coating replaces traditional carbon paper material, has pollution-free, the writing durability is strong and can reach the purpose of adjusting the writing colour through the nanometer microballon that changes in the structural color coating layer.

Description

Structural color pressure-sensitive carbon paper

Technical Field

The utility model relates to a papermaking technical field, concretely relates to pressure-sensitive carbon paper.

Background

With the development of science and technology, carbon paper technology is more mature, but the types of the carbon paper are limited to common carbon paper, carbon-coated paper, carbonless carbon paper and the like. Among them, the carbonless copy paper is widely used, the color-developing agent and color former in the carbonless copy paper generally have toxicity, and the writing is greatly affected by the environment, so the writing is not durable.

SUMMERY OF THE UTILITY MODEL

To prior art not enough and satisfy the demand of market to novel carbon paper, the utility model provides a novel structure look pressure is felt carbon paper.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a structural color pressure is felt carbon paper, includes the carbon film, the utility model discloses a carbon film comprises stratum basale and structural color dope layer, and the structural color dope layer is the close-packed structure of nanometer microballon periodic arrangement formation, and close-packed structure makes the carbon film utensil have colored gloss.

Further, the base layer is an MPE, CPP, PET, or PE film.

Furthermore, the raw material of the nano-microsphere is selected from polystyrene, silicon dioxide, titanium dioxide or polymethyl methacrylate.

Further, the particle size of the nano-microsphere is 200-350 nm.

Further, the utility model discloses a structural color pressure is felt carbon paper is still including being located the printing layer below the carbon film, thereby inlay behind the structural color dope layer on the carbon film through the impression and form structural color seal of a government organization in old china on the printing layer.

Further, the utility model discloses a structural color pressure is felt carbon paper still including being located the impression layer on the carbon film for the impression carbon film.

The beneficial effects of the utility model reside in that:

1. because the utility model adopts the structural color to replace the chemical reaction color generation, the problems of environmental pollution and harm to human body of the traditional carbon paper are solved from the source;

2. the color of the handwriting written by the carbon paper can be adjusted by changing the nano microspheres in the structural color coating layer, and the obtained color of the handwriting has good durability;

3. the carbon film comprises a high molecular polymer film, so that the pressure resistance is improved, and the carbon film is not easy to damage.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the new structural color pressure-sensitive carbon paper of the present invention, wherein 1 is an impression layer, 2 is a substrate layer of a carbon film, 3 is a structural color coating layer of the carbon film, and 4 is a printing layer.

Fig. 2 is a schematic diagram of a copying process.

FIG. 3 is a reflection spectrum of a carbon paper writing in example 1 of the present invention.

FIG. 4 is a reflection spectrum of a carbon paper writing in example 2 of the present invention.

FIG. 5 shows the reflection spectrum of the carbon paper handwriting in example 3 of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model relates to a pressure-sensitive carbon paper of structural color can be used to the papermaking technique, has the advantages of green, environmental protection, and is durable, withstand voltage, not fragile etc. Referring to fig. 1, a structural color pressure-sensitive carbon paper includes an imprinting layer 1, a substrate layer 2 of a carbon film, a structural color coating layer 3 of the carbon film, and a printing layer 4, wherein the imprinting layer 1 and the printing layer 4 can be made of common paper and are respectively disposed on an upper layer and a lower layer of the carbon film; the structural color coating layer 3 of the carbon film is a photonic crystal ordered periodic structure which is formed by self-assembling nano microspheres, and the particle size of the nano microspheres is 200-350 nm.

In order to further understand the present invention, three specific examples are given below to describe the structural color pressure-sensitive carbon paper in detail.

Example one

The structural color pressure-sensitive carbon paper comprises a carbon film, wherein common paper is arranged on the upper layer and the lower layer of the carbon film, and a structural color coating layer is arranged on the lower layer of the carbon film. The upper substrate layer 2 of the carbon film was a commercial PET film. The structural color coating layer 3 adopts polystyrene microsphere emulsion, and the polystyrene microsphere emulsion is uniformly coated on the surface of the PET film in a coating mode to form a photonic crystal ordered periodic structure unit layer formed by self-assembling polystyrene microspheres, wherein the particle size of the photonic crystal ordered periodic structure unit layer is 275 nanometers. Referring to fig. 2, when writing on the surface of plain paper with force, the polystyrene nano-microspheres 3 under the PET film 2 are separated from the PET film 2 and tightly embedded in the grooves of the plain paper 4 to form green structural color handwriting. Referring to fig. 3, the reflection spectrum of green light written on the structural color pressure-sensitive carbon paper is shown.

Example two

The structural color pressure-sensitive carbon paper comprises a carbon film, wherein common paper is arranged on the upper layer and the lower layer of the carbon film, and a structural color coating layer is arranged on the lower layer of the carbon film. The upper substrate layer of the carbon film is commercially available MPE film. The structural color coating layer adopts polymethyl methacrylate microsphere emulsion, and the polymethyl methacrylate microsphere emulsion is uniformly coated on the surface of the PET film in a coating mode to form a photonic crystal ordered periodic structure unit layer formed by self-assembling polymethyl methacrylate microspheres, wherein the particle size of the photonic crystal ordered periodic structure unit layer is 320 nanometers. When writing on the surface of the plain paper with force, the polymethyl methacrylate nano microspheres under the MPE film are separated from the MPE film and are tightly embedded in the grooves of the plain paper, so that red structural color handwriting is formed. Referring to fig. 4, the reflection spectrum of red light written on the structural color pressure-sensitive carbon paper is shown.

EXAMPLE III

The pressure sensitive carbon paper based on the structural color comprises a carbon film, wherein common paper is arranged on the upper layer and the lower layer of the carbon film, and a structural color coating layer is arranged on the lower layer of the carbon film. The upper substrate layer of the carbon film was a commercial PE film. The structural color coating layer adopts silicon dioxide microsphere emulsion, and the silicon dioxide microsphere emulsion is uniformly coated on the surface of the PE film in a coating mode to form a photonic crystal ordered periodic structure unit layer formed by self-assembling silicon dioxide microspheres, wherein the particle size of the photonic crystal ordered periodic structure unit layer is 200 nanometers. When the common paper is forcibly written on the surface, the silica nano microspheres under the PE film are separated from the PE film and are tightly embedded in the grooves of the common paper, so that blue structural color handwriting is formed. Referring to fig. 5, the reflection spectrum of blue light written on the structural color pressure-sensitive carbon paper is shown.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The structural color pressure-sensitive carbon paper comprises a carbon film and is characterized in that the carbon film consists of a substrate layer and a structural color coating layer, the structural color coating layer is a close-packed structure formed by periodically arranging nano microspheres, and the close-packed structure enables the carbon film to have color luster.

2. The structured color pressure-sensitive carbon paper of claim 1 wherein the base layer is an MPE, CPP, PET, or PE film.

3. The structural color pressure-sensitive carbon paper as claimed in claim 1, wherein the raw material of the nano-microsphere is selected from polystyrene, silica, titanium dioxide or polymethyl methacrylate.

4. The structural color pressure-sensitive carbon paper as claimed in claim 1, wherein the particle size of the nano-microsphere is 200-350 nm.

5. The structural color pressure-sensitive carbon paper as claimed in claim 1, further comprising a printing layer located below the carbon film, wherein the structural color coating layer on the carbon film is embedded on the printing layer after embossing so as to form a structural color print.

6. The structural color pressure-sensitive copying sheet according to claim 1, further comprising an embossing layer on the copying film for embossing the copying film.