CN217259258U - Thermal sublimation transfer printing paper - Google Patents

Abstract

The utility model provides a thermal sublimation changes printing paper, including raw paper layer, isolation layer and dope layer. The isolating layer is mainly used for preventing the printing ink from permeating and transferring to the raw paper layer through the coating layer during printing. The purpose of the utility model is realized with the following mode: the thermal sublimation transfer printing paper comprises a raw paper layer, a release layer and a coating layer, wherein the isolation layer contains 30-34% of hollow spheres, the hollow spheres are uniformly distributed in the isolation layer, and the hollow spheres in the isolation layer are made of materials formed by polymerizing methyl methacrylate and methacrylic acid. The utility model has the advantages that: the processing mode is simple and convenient, and the practicality is high, can effectively prevent that printing ink from passing through the coating layer to the raw paper layer rendition infiltration during the printing, and the rendition definition of pattern is good, the high quality of heat-transfer seal.

Description

Thermal sublimation transfer printing paper

Technical Field

The utility model belongs to the technical field of the papermaking, concretely relates to thermal sublimation changes printing paper.

Background

The thermal sublimation transfer printing is a new process for printing pictures and texts such as human images, landscapes, characters and the like on thermal sublimation transfer printing ink jet paper, namely thermal sublimation transfer printing paper in a mirror image mode by using an ink jet printer filled with thermal sublimation transfer printing ink, heating the thermal sublimation transfer printing paper to about 200 ℃ by using thermal transfer printing equipment, and sublimating and permeating the thermal transfer printing ink on the thermal sublimation transfer printing paper into a printing stock, so that color images on the paper are realistically transferred to materials such as textiles, porcelain cups, porcelain plates, metals and the like. The existing thermal sublimation transfer printing paper is easy to cause the condition that printing ink permeates the coating layer to the raw paper layer in a large amount if the surface coating is not well made, thereby causing the low absorption of the coating layer to the printing ink and influencing the transfer definition of patterns and the quality of thermal transfer printing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thermal sublimation changes printing paper. Comprises a raw paper layer, an isolation layer and a coating layer. The isolating layer is mainly used for preventing the printing ink from permeating and transferring to the raw paper layer through the coating layer during printing.

The purpose of the utility model is realized with the following mode:

the thermal sublimation transfer printing paper comprises a raw paper layer, an isolation layer and a coating layer, wherein the isolation layer contains 30-34% of hollow balls by volume.

The isolating layer contains 32% volume of hollow spheres.

The hollow balls are uniformly distributed in the isolating layer.

The hollow ball in the isolation layer is made of a material polymerized by methyl methacrylate and methacrylic acid components.

The utility model has the advantages that: the processing mode is simple and convenient, and the practicality is high, can effectively prevent that printing ink from passing through the coating layer to the raw paper layer rendition infiltration during the printing, and the rendition definition of pattern is good, the high quality of heat-transfer seal.

Drawings

Fig. 1 is the utility model discloses the structure sketch map of heat sublimation transfer printing paper.

The coating comprises 1, a coating layer, 2, an isolation layer, 3, a raw paper layer, 4 and a hollow ball.

Detailed Description

In the present invention, unless otherwise explicitly specified and limited, technical terms used in the present application shall have the ordinary meaning as understood by those skilled in the art to which the present invention pertains. Thermal sublimation changes printing paper and is applicable to: cloth, leather, metal, wood, ceramic, glass, organic glass, PVC plates and the like. The thermal sublimation transfer printing paper has the characteristics that the transfer printing image is bright in color and rich in layers, the effect of the thermal sublimation transfer printing paper can be compared with that of printing, and the difference is that the thermal transfer printing ink is heated and sublimated at high temperature, permeates into the surface of a medium, and the image can be formed after sublimation. Therefore, a film is not formed on the surface of the medium, and the image is not peeled off, cracked, and light-resistant and does not fade for a long time. Thermal sublimation changes printing paper, including raw paper layer, isolation layer and dope layer. The raw paper layer is used for bearing the coating layer and providing certain thickness and strength; the isolating layer is mainly used for preventing the printing ink from permeating and transferring to the raw paper layer through the coating layer during printing; the coating layer is used for absorbing the bearing ink, so that the occurrence of curling phenomenon of the thermal transfer paper during high-temperature transfer printing can be reduced, dislocation and deformation of images can be avoided, and the transfer printing quality can be improved. The hollow microsphere, i.e. the hollow sphere, is a microsphere material with a special structure and function, and has been drawing attention since the past. The interior of the hollow cavity is provided with a hollow cavity formed by a porous structure, and the hollow cavity has the properties of low density, high specific surface area and the like. And small particles, liquid and gas can be encapsulated therein to form microsphere particles with special functions. The shell layer and the cavity on the surface of the hollow sphere are filled with air, so that the refractive index at the interface of the air and the hollow sphere is different, and the air has higher light scattering, so that the hollow sphere has strong covering effect. Hollow balls have wide application in various industries. The paper is a necessity in our life and is used for writing, printing books and newspapers, commodity packaging and the like. In the manufacturing process, pigments, resins or other special substances are coated on the surface of the base paper, and the purpose of coating is to improve the surface performance of the paper, strength, water resistance and oil resistance of the paper, and improve the functions of light prevention, ray prevention, rust prevention and the like. The paper coating is a mixed system consisting of inorganic substances and high molecular polymers with different structures, and the performance of the paper coating determines the quality of a final product of coating processing and is an important factor in the coating processing process.

The evaluation method simulates the actual printing and transfer printing process, namely, a color table type ink-jet printer is utilized to print 100 percent C color block patterns with a certain area on digital thermal sublimation transfer printing paper, after drying, a flat plate transfer printing machine is utilized to transfer the color blocks onto white 100 percent terylene cloth, the transfer printing temperature is set to be 200 ℃, and the time is 30 s. Respectively testing the density of color blocks on the cloth after transfer by using a reflection densitometer according to the measurement requirements of reflection density in the standard of GB/T18722-2002 printing technology reflection density measurement and application of chromaticity measurement in printing process control, wherein the density of the color blocks is the density of transfer color; the density of the color blocks remained on the paper after the transfer printing is respectively tested, namely the density of the residual color, and the test can be carried out by adopting a color densitometer with a model of above 528 Eschelii. And (4) testing the density of the color blocks on the cloth after the transfer printing by using a reflection densimeter, wherein the numerical value is the density of the transfer printing color.

The transfer rate is defined as: the ratio of the transfer color block density to the sum of the transfer color block density and the residual color block density is the color block transfer rate, namely the transfer rate = the transfer color density/(transfer color density + residual color density) × 100%

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. As shown in fig. 1, the utility model provides a thermal transfer paper includes raw paper layer 3, and isolation layer 2 and dope layer 1 cover in proper order in one side of raw paper layer 3 along the thickness direction of raw paper layer 3, and isolation layer 2 contains hollow ball 4, and hollow ball 4 accounts for 32% volume in isolation layer 2, also can be 30% and 34% volume, through experimental preferred 32% volume.

Examples

Taking the finished grammage of the coating formula of the 50g/m thermal sublimation transfer printing paper as an example, the utility model adopts the following solution:

coating an isolation layer 2 on a thermal sublimation transfer printing paper with a basis weight of 42g/m, wherein the hollow spheres 4 account for 32% by volume in the isolation layer 2 of the samples 1-6, coated on the raw paper layer 3, and the dry weight is 3.0 g/m; the blank isolation layer 2 is coated on the raw paper layer 3 without adding hollow balls, and the dry weight is 4 g/m.

Coating layer 1 of samples 1-6 is coated on a release layer, and the dry weight is 5.0 g/m. The thermal sublimation transfer printing paper processed by the method has the basis weight of 50 g/m. The composition of the paint layer 1 of the blank sample was the same as that of the paint layers 1 of the samples 1 to 6.

It can be seen that thermal sublimation changes printing paper's remaining look be less than blank sample, the transfer rate obviously is higher than blank sample, the isolation layer dry weight is less than blank sample isolation layer dry weight, this is because added the cavity ball in the isolation layer, there is the cavity in the middle of the cavity ball, the volume is great, weight is lighter, has reduced the gram weight of paper, has improved the performance of paper, has improved thermal sublimation and has changed printing paper's transfer rate.

The features of the embodiments described above may be arbitrarily combined, and the combination of the features is not contradictory, and should be considered as a range described in the present specification. Without departing from the overall concept of the present invention, the technical solution of the present invention and equivalent replacements or changes, and a plurality of changes and improvements made, should also be regarded as the protection scope of the present invention.

Claims (2)

1. A thermal sublimation transfer paper comprises a raw paper layer, an isolation layer and a coating layer, wherein the isolation layer contains hollow balls with the volume of 30-34%; the hollow balls are uniformly distributed in the isolation layer.

2. The thermal sublimation transfer paper according to claim 1, wherein the separation layer contains 32% by volume of hollow spheres.

Images