High-gloss and waterproof photographic paper and preparation method thereof

Abstract

The invention discloses high-gloss and waterproof photographic paper. The high-gloss and waterproof photographic paper comprises an ink-absorbing layer, a lustering layer, raw paper and a back coating. A preparation method of the high-gloss and waterproof photographic paper comprises a preparation method of ink-absorbing coating liquid, a preparation process of lustering coating liquid, a preparation process of back-coating coating liquid and a preparation process of the high-gloss and waterproof photographic paper. According to the high-gloss photographic paper produced by the method, the glossiness can reach above 80 percent and is far more than that of photographic paper with the glossiness being 40 to 60 percent in the market; meanwhile, the high-gloss photographic paper has scratch resistance and the surface hardness of the photographic paper reaches level 7; the back side is coated with polymer emulsion, so the isolating effect and the anti-curl effect are achieved; and the surface tension of the back side is less than 25 dynes, so water cannot be spread on the surface. The flatness reaches the level of coated paper. The ink-absorbing drying rate is high, the effect that the paper is dry once being discharged out of a machine is achieved, and the drying rate is greatly increased compared with the drying rate, that the coated photographic paper is dry 2 minutes later when being discharged out of the machine, of the coated photographic paper.

Description

technical field [0001] The technical field of the present invention is the technical field of new materials, and the application field is the field of image output, in particular to a high-gloss water-resistant photographic paper and a preparation method thereof. Background technique [0002] In September 2012, my country Lucky Film Group, a giant film manufacturer in China, closed the last color film production line in Nanjing, marking that my country's digital inkjet printing technology has basically replaced the traditional silver salt output technology in the image output industry. [0003] Inkjet printing photo paper is the printing medium material in digital inkjet printing technology, which is made by coating the coating liquid on the surface of the substrate. At present, the types of photo paper on the market mainly include coated paper photo paper and cast-coated photo paper. Among them, the coated paper photo paper is coated with the ink-absorbing coating liquid on...

AI Technical Summary

Problems solved by technology

[0004] Coated paper photo paper has the advantages of good water resistance, high flatness, complete hydrophobicity on the back of the paper, vivid and bright output colors, and is suitable for long-term storage. However, its surface gloss is relatively low, the printing drying speed is slow, and the surface is prone to scratches And leave fingerprints, which will affect the printing color display and preservation

[0005] Cast-coated photo paper has high gloss, fast printing and drying speed, high surface hardness, and vivid and bright colors. However, because it uses paper as the base material, it has relatively poor water resistance and is easy to curl, which affects long-term storage applications.

[0006] The patent application number is: 201210186881.1, and the patent name is: nano-scale high-gloss cast-coated paper for printing. The nano-scale high-gloss cast-coated paper for printing provided by this patent can be obtained by one-time drying without super calendering, but Its air permeability, surface gloss and scratch resistance of the product are not good

[0007] The patent application number is: 201210187158.5, and the patent name is: New environmentally friendly high-gloss cast-coated paper made of recycled paper. This patent uses recycled paper as the cast-coated base paper to obtain high-gloss and easy-to-peel cast-coated paper, which is energy-saving and environmentally friendly. Lower ink blotting drying rate and print resolution