News

News

Talk about the current problems faced by melamine impregnated paper


The melamine impregnated paper we use is a very useful building decoration material, but no matter how good it is, there are imperfect areas, so Xiaobian summarizes the common faults of melamine impregnated paper and some simple solutions.

1. Cushion Block Condition Cushion Block is that the plate is partially or completely adhered to the cushion block in the pressing process. The reasons are as follows:

1. The pressing time is short, or the temperature of the hot pressing plate is low or the part is slightly lower, so that the resin curing is incomplete;

2. The water content of the plate is too high;

3, impregnated paper coating too much, volatile composition is too high;

4, the surface of the thick steel plate is not cleaned, the type of release agent is not suitable or the glue is uneven;

5. Billet positioning is not accurate when pressing. The sticking condition mostly occurs around the plate, which is due to the low temperature at the edge or the outstanding offset of the square billet inside the press. Should be checked one by one to find the real reason for the occurrence of sticky board, timely treatment, reduce losses. The main reason for sticking to the board is that the adhesive is not completely dry. Therefore, it is an effective way to increase the ambient temperature or increase the pressing time to deal with such problems.

2. the board is warped

1. From the perspective of pressing, the warping of the board is mainly due to the large temperature difference between the upper and lower pressure plates, which leads to the asynchronous curing speed of the gummed paper on both sides of the board in the pressing process, and the board bends to the 17-speed side. Xiaobian believes that the appropriate temperature difference between the upper and lower pressure plates should be that the ambient temperature of the upper pressure plate is 3~5 higher than that of the lower pressure plate.

2. From the perspective of the raw materials themselves, the characteristics of the commonly used double-layer impregnated paper for village materials will also cause the board to warp. If the single-layer paper paste is used, the warpage is an inevitable conclusion. From the production point of view, the same impregnated paper can be used or the appropriate temperature difference between the upper and lower pressure plates can be adjusted to ensure that the plate does not warp.

3. Wrong stacking method of finished products after pressing is another major factor causing warping of the board. The solution is to use symmetrical and vertical cushion blocks or trays to store the melamine impregnated paper board with better pressing. Through my above summary, I think everyone has already mastered how much we still say: "when we really want to produce high-quality products, we must adopt good impregnated paper and plates and scientific and reasonable production technology." in addition, we also need the cooperation of actual operation and inspection personnel, and timely feedback should be given to problems. only in this way can we ensure stable product quality and occupy a larger sales market.

Well, that's all for the melamine impregnated paper. Thank you for watching. See you next time.


Related News


Introduction to the advantages of impregnated paper, come and collect!

Melamine impregnated paper is divided into three categories: plain paper, printing paper and wear-resistant paper. According to the product application, it can be divided into two categories: face paper and base paper. Ordinary paper is different from original color paper and printing paper. The base paper is good, pure in color, not easy to change color, and the color of printing paper is relatively uneven. Generally, plain printing paper is used as base paper (multi-purpose laminate flooring, also called balance paper), which is widely used in cabinets and laminate flooring.


Impregnated paper features introduced, quick collection!

Impregnated paper is a mixture of non-woven wood pulp and PE and plant fibers. It has good absorption and anti-dissolution ability. Impregnated paper is also a very economical paper towel with low particle shedding rate. What are the characteristics of impregnated paper? Let's analyze it together. Impregnated paper wear-resistant, rich styles, impact resistance, no deformation, pollution resistance, flame retardant, moisture-proof, environmental protection, do not fade, easy to install, easy to take care of, can be used for floor heating, etc.


Dry goods sharing, one minute to take you to understand the development history of melamine impregnated paper

What is the development history of melamine impregnated paper? Let's take a brief analysis. Melamine impregnated paper is generally used for panel furniture, most of which are low-pressure and short-cycle forms, that is, the board is made by pressing for tens of seconds under high temperature and high pressure. In recent years, the synchronous disk produced by combining gelatin paper with steel plate and wood grain has been loved by people because of its good body texture.


Dry goods sharing, one minute to take you to understand the main indicators of melamine impregnated paper

What are the main indicators of melamine impregnated paper? Let's make a brief analysis together. 1. The amount of glue: the solid resin content of the decorative film paper (expressed as a percentage (%)). 2. Volatile content: the content (percentage (%)) of volatiles (mostly moisture and other small molecules) on decorative film paper. 3. Pre-curing degree: The curing degree of the resin is expressed as a percentage (%) on the decorative film paper.


Dry goods sharing, one minute to take you to understand melamine impregnated paper

Melamine impregnated paper, also known as "melamine" paper, especially refers to the amino resin (melamine-formaldehyde resin and urea-formaldehyde resin) impregnated in solid color base paper or printed decorative paper, after a certain degree of drying, can be hot-pressed bonded together or bonded on the wood-based board substrate offset paper.


The use of wood grain paper points

Wood grain paper is mainly used for decoration or trimming of furniture, speakers and other household office supplies. Now its other uses include: plastic packaging, wine packaging, plastic calendars, decorative paintings, etc. The following points for the use of wood grain paper?