Preparation method of paper and pet composite material in field of printed matters

Abstract

The invention discloses a preparation method of a composite material of paper and pet in the field of printed matter, two pieces of paper are included, composite material layers are attached to the upper side and the lower side of one piece of paper, the other piece of paper is arranged on the outer surface of the composite material layer, and the paper and the composite material layer are subjected to surface treatment. The treated paper and the composite material layer are compounded through a compounding machine, printing is conducted on the compounded paper and the composite material layer, a proper printing mode can be selected, and then post-treatment including drying and curing and drying and curing treatment conducted on printed matter after printing is conducted is conducted. Therefore, the ink can be firmly attached to the surface of the material, cut and formed. Compared with the prior art, the invention has the advantages of high crystallinity, smooth and glossy surface, creep resistance, fatigue resistance, friction resistance, good dimensional stability and excellent electrical insulation property.

Description

Technical Field

[0001] The invention relates to the technical field of paper, in particular to a method for preparing a composite material of paper and PET in the field of printed products. Background Art

[0002] The existing process usually involves directly peeling off the PET film after compounding it with the paper. After the PET film is transferred to the paper, the moisture on both sides of the paper is unbalanced, and the transfer coating also has a certain shrinkage force, which causes the printed product to curl. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the above technical defects.

[0004] In order to solve the above problems, the technical solution of the present invention is: a method for preparing a composite material of paper and PET in the field of printed matter, two sheets of paper, one of which has a composite material layer laminated on both the upper and lower sides, and the other sheet of paper is arranged on the outer surface of the composite material layer;

[0005] The paper and the composite material layer are surface treated to achieve the lamination of the composite material layer on the paper, and the outer side of the composite material layer is laminated to the two layers of paper to improve the adhesion between them. The treated paper and the composite material layer are compounded by a compounding machine. During the compounding process, the temperature, pressure and time parameters need to be accurately controlled to ensure that the two materials are tightly combined. Printing is performed on the compounded paper and the composite material layer, and an appropriate printing method can be selected. Then, post-processing, including drying and curing, is performed on the printed matter after printing to ensure that the ink is firmly attached to the surface of the material. Cutting and molding are performed on the printed matter according to the size and shape requirements of the final product.

[0006] Furthermore, the composite material layer located on the upper side is PET material. PET material has the characteristics of corrosion resistance, easy scrubbing, bending resistance, good dimensional stability, excellent electrical insulation performance, and little influence by temperature, but relatively poor corona resistance. Its chemical properties are oil resistance, fat resistance, dilute acid resistance, dilute alkali resistance, and most solvent resistance. It is non-toxic, odorless, and has good hygiene and safety, and can be directly used for food packaging.

[0007] Furthermore, the surface treatment generally includes corona treatment and adhesive coating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of a method for preparing a composite material of paper and PET in the field of printed matter according to the present invention.

[0009] As shown in the figure: 1. Paper; 2. Composite material layer. DETAILED DESCRIPTION

[0010] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0011] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0012] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0013] like Figure 1 As shown, a method for preparing a composite material of paper and PET in the field of printed matter comprises two sheets of paper 1, wherein the composite material layer 2 is laminated on both the upper and lower sides of one of the sheets of paper 1, and the other sheet of paper 1 is arranged on the outer surface of the composite material layer 2;

[0014] The paper 1 and the composite material layer 2 are surface treated to achieve the bonding of the composite material layer 2 on the paper 1, and the outer side of the composite material layer 2 is bonded to the two layers of paper 1 to improve the adhesion between them. The treated paper and the composite material layer 2 are compounded by a compounding machine. During the compounding process, the temperature, pressure and time parameters need to be accurately controlled to ensure that the two materials are tightly combined. Printing is performed on the compounded paper 1 and the composite material layer 2. An appropriate printing method can be selected, and then post-processing, including drying and curing, is performed on the printed matter after printing to ensure that the ink is firmly attached to the surface of the material. Cutting and molding are performed on the printed matter according to the size and shape requirements of the final product.

[0015] The composite material layer 2 located on the upper side is PET material. PET material has high surface corrosion resistance, is easy to scrub, is resistant to bending and has good dimensional stability, excellent electrical insulation performance, and is less affected by temperature, but its corona resistance is relatively poor. Its chemical properties are oil resistance, fat resistance, dilute acid resistance, dilute alkali resistance, and most solvents resistance. It is non-toxic, odorless, and has good hygiene and safety. It can be directly used for food packaging. The surface treatment usually includes corona treatment and adhesive coating steps.

[0016] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A method for preparing a composite material of paper and PET in the field of printed matter, characterized in that: It comprises two sheets of paper (1), wherein the upper and lower sides of one of the sheets of paper (1) are both laminated with a composite material layer (2), and the other sheet of paper (1) is arranged on the outer surface of the composite material layer (2); The paper (1) and the composite material layer (2) are subjected to surface treatment to achieve lamination of the composite material layer (2) on the paper (1), and the outer side of the composite material layer (2) is laminated to the two layers of paper (1) to improve the adhesion between them. The treated paper and the composite material layer (2) are laminated by a laminating machine. During the laminating process, the temperature, pressure and time parameters need to be precisely controlled to ensure that the two materials are tightly combined. Printing is performed on the laminated paper (1) and the composite material layer (2). An appropriate printing method can be selected. Then, processing is performed, including drying and curing. After printing, the printed matter is dried and cured to ensure that the ink is firmly attached to the surface of the material. Cutting and molding are performed on the printed matter according to the size and shape requirements of the final product.

2. The method for preparing a composite material of paper and PET in the field of printed matter according to claim 1, characterized in that: The composite material layer (2) located on the upper side is a PET material. The PET material has the characteristics of being resistant to corrosion, easy to scrub, resistant to bending, good dimensional stability, excellent electrical insulation performance, and little affected by temperature, but relatively poor corona resistance. Its chemical properties are oil resistance, fat resistance, dilute acid resistance, dilute alkali resistance, and resistance to most solvents. It is non-toxic, odorless, and has good hygiene and safety, and can be directly used for food packaging.

3. The method for preparing a composite material of paper and PET in the field of printed matter according to claim 1, characterized in that: Surface treatment usually includes corona treatment and adhesive coating steps.

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