The types of impregnated paper used for melamine veneers panels

The types of impregnated paper used for melamine veneers panels

1. Base paper

Melamine impregnated paper is divided into three categories: plain paper, printed paper, and wear-resistant paper. According to the product use, it can be divided into two categories: surface paper and base paper. Plain paper is divided into original color paper and printed paper. Original paper is the best, with pure hue and not easy to change color. The hue of printed paper is relatively uneven. Generally, plain printed paper is used as base paper (it is often used in laminate flooring, also called balance paper.)

Wood grain paper is printed on the basis of base paper. According to the realistic requirements of 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.

2. Ink

Printing is indispensable for ink. The ink used for melamine wood grain paper is water-based ink. There are domestic inks and imported inks. The main difference is the long-term weather resistance. 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, it will affect the purity of the hue. In addition, the quality of a large amount of white space can be seen by the naked eye. It is very general. It is not worth money. In addition, it is not allowed to have ink support and inaccurate color registration.

If the color is burnt yellow, the ink quality is poor.

3. Melamine content determines the wear resistance of the melamine surface. Moisture-proof and mildew-proof quality.

The best impregnated paper has a melamine content of 100%, followed by 70%. At present, most people use 70% impregnated paper. The shelf life of pure melamine impregnated paper can reach more than 1 year.

The worst sugar glue, which is not in the mainstream, acts as melamine glue. If it is exposed to the air for 5 minutes, it will immediately become sticky. 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. It won’t take long for the protective layer on the surface to be wiped and melted due to wiping. Therefore, in order to change this problem, the manufacturers of sugar glue paper add a large amount of curing agent, so there will be a quality problem of expiration in a week or 15 days and premature curing. Simple detection method: put a wet towel on the veneer board, and check the surface changes the next day to see if there are bubbles or bulges. Check whether the surface gloss is destroyed 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 glue, the shelf life is generally only 3 months, and some are less. A simple identification method is:

When the surface of the board is burned by fire, there is a smell of urea.

The problem of formaldehyde release. There are also differences between E1, E2, and E0.

4.the gram weight (thickness) of papMelamine paper is divided into many categories according to color needs, printing needs, impregnation paper output needs, and purpose needs: 70 grams, 80 grams, 85 grams, 90 grams, 110 grams, 120 grams, 135 grams, etc.

Generally, 80 grams of domestic veneer with titanium white hemp surface can be pressed, but it is not good for matte surface, which will produce bottom see-through phenomenon. Warm white and beige matte surface will also produce bottom see-through phenomenon if it is not above 110. And 85g and 90g are enough for producing hemp surface.

5. Curing agent

A simple melamine board also involves the problem of stain resistance. In addition to the difference in impregnation glue, there is another important factor, that is, the quality of the curing agent. There is a distinction between imported and domestic.

6. Wear-resistant paper

Wear-resistant paper is a veneer paper impregnated with melamine and added with aluminum oxide. Wear-resistant paper makes the surface of laminate flooring bright and wear-resistant. It has the characteristics of high transparency, wear resistance, flawlessness, fire resistance, and easy maintenance.

Wear-resistant paper has several types such as 18g, 22g, and 45g. According to different production processes, the wear resistance coefficient is also different. At present, wear-resistant paper is more used in laminate flooring. Good wear-resistant paper can withstand 6000 revolutions of test. Furniture board has not been widely used yet.

7. Decorative base paper

The gram weight range is 70~110g/m2. Also known as "melamine impregnated paper, titanium white paper", it has excellent hiding power and weather resistance (color fastness). The base paper is used for laminate flooring, office furniture press board, etc. after printing and dipping.

8. Melamine impregnated film paper

Features: It can be used for veneer of substrates such as particleboard, medium-density fiberboard, or hardboard. And it has natural decorative effects and advantages such as damage resistance, acid and alkali resistance, scratch resistance, corrosion resistance, and easy cleaning. Protection: Store in a sealed state under relative humidity of 55%-65%, temperature of 10-30℃ and conditions.

9. There are also paint paper, PU paper, etc.

According to different impregnation processes and usage requirements, pre-impregnated paper and post-impregnated paper can also be produced. At present, some companies 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 artificial board itself, but also has a lot to do with the surface melamine impregnated paper.