What are the main types of impregnated paper
1. Base paper:
Melamine impregnated paper is divided into three categories: plain paper, printing paper, and wear-resistant paper. According to the use of the product, it can be divided into two categories: face paper and bottom paper. Plain color paper is different from primary color paper and printing paper. The base paper is the best, the color is pure, not easy to change color, and the color of printing paper is relatively uneven. Generally, plain color printing paper is used as the backing paper (multi-purpose laminate flooring, also called balance paper.) Wood The grain paper is printed on the basis of the base paper. According to the realistic requirements of the wood grain, the number of plate rollers used for printing is also different. Art printing paper: Among them, Senjia's art series is the most advanced.
Printing ink is indispensable, the ink used in melamine wood grain paper is water-based ink. There are domestic inks and imported inks. The main difference is the long-term issue of weatherability. To identify the printing quality, you can use a magnifying glass to observe the amount of 'white space'. If there is too much white space, the purity of the hue will be affected. In addition, a large amount of white space can be seen with the naked eye, and the quality is very general. It is worthless. In addition, it is not allowed to have ink, and the color registration is not allowed. If the color is browned, the ink quality is not good. 3. The content of melamine determines the wear resistance of the melamine surface. Moisture-proof, mildew-proof quality.
The best impregnated paper has a melamine content of 100%, followed by 70%. At present, most impregnated papers with a 70% content are used. Pure melamine impregnated paper has a shelf life of more than 1 year. The worst kind of sugar glue that does not flow in, acts as a melamine glue. If it is exposed to the air for 5 minutes, it will immediately appear a bonding state. Therefore, many people say that it should be placed in an air-conditioned room to prevent premature bonding and curing. Sugar is soluble in water, so it is not moisture-proof, and it does not take long for the protective layer on the surface to be easily melted off due to wiping. Therefore, in order to change this problem, the manufacturers of sugar glue paper have added a large amount of curing agent, so there will be a quality problem that it will expire in a week or 15 days and cure early. Simple detection method: put a wet towel on the veneer, and check the surface changes the next day, whether there are bubbles or bulges. Whether the gloss of the surface is damaged after wiping.
There is a kind of impregnated paper, which uses urea-formaldehyde glue, and the proportion of melamine is 60%, 50%, 40%, and 30%. Although it is better than sugar gum, the shelf life is generally only 3 months, and some are less. The simple identification method is: when the surface of the board is burned, there is a smell of urea. The problem of formaldehyde release. The same has the difference of E1, E2, E0.
Fourth, the weight of paper (thickness)
Melamine paper is divided into many categories according to color needs, printing needs, impregnation paper yield needs and needs of use: yes, 70 grams, 80 grams, 85 grams grams, 90 grams, 110 grams, 120 grams, 135 grams, etc. Generally, the veneer of the titanium white linen surface can be made in 80 grams, but the matte surface will not work, which will cause the phenomenon of bottom penetration. Warm white, beige pressed matte surface will also produce bottom penetration without more than 110. And the production of 85 grams of hemp noodles, 90 grams is enough.
5. Curing agent
A simple melamine board also involves the problem of stain resistance. In addition to the difference in the dipping glue, there is also an important factor that is the quality of the curing agent. There are imported and domestic distinctions.
6. Wear-resistant paper
Wear-resistant paper is a veneer paper impregnated with melamine added with aluminum oxide. The wear-resistant paper makes the laminate floor surface bright and wear-resistant. It has the characteristics of high transparency, wear resistance, flawless, fireproof and easy maintenance. There are 18 grams, 22 grams, 45 grams of wear-resistant paper, etc. According to the different production processes, the wear resistance coefficient is also different. At present, wear-resistant paper is widely used in laminate flooring. A good abrasion-resistant paper can withstand the 6000 rpm test. Furniture boards are not currently in heavy use.
Seven, decorative base paper
The gram weight range is 70 ~ 110g/m2. Also known as 'melamine impregnated paper, titanium dioxide paper
Eight, melamine impregnated film paper
Features: It can be used for veneer of substrates such as particleboard, medium density fiberboard, or hard fiberboard. And it has the advantages of natural decorative effect and damage resistance, acid and alkali resistance, scratch resistance, corrosion resistance and easy cleaning. Protection: Sealed storage at a relative humidity of 55% to 65% and a temperature of 1030°C.
Nine, there are also paint paper, pu paper, etc.
According to the different impregnation process and usage requirements, pre-impregnated paper and post-impregnated paper can also be produced. At present, some enterprises have begun to produce softened melamine-impregnated paper, which can be bent but not broken. Therefore, the quality of the board is not only related to the quality of the wood-based board itself, but also has a great relationship with the surface melamine impregnated paper. As a consumer, you can't be greedy for cheap as the basis for purchasing. , it is recommended to learn more about the relevant knowledge, and good quality is a reliable product
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