Preparation method of aramid fiber painting and calligraphy paper

Abstract

The invention belongs to the technical field of painting and calligraphy paper, and discloses a preparation method of aramid fiber painting and calligraphy paper.The preparation method comprises the steps of printing, smoking, hot pressing and rolling of the aramid fiber painting and calligraphy paper.Aramid fiber paper is adopted for manufacturing the painting and calligraphy paper, and the painting and calligraphy paper is excellent in flame retardance, resistant to high and low temperature, high in corrosion resistance and stable in structure and has the long-term storage condition; the abrasion resistance of the aramid fiber calligraphy and painting is better than that of traditional calligraphy and painting, under the pressure intensity of 198 g / m + / -2 g / m, the abrasion frequency of the aramid fiber paper reaches 25000 times, but the aramid fiber paper is still not abraded, Japan silk is abraded 4025 times, the antiseptic property of the aramid fiber calligraphy and painting is more excellent, under the same condition, the count of the Japan silk is 50 CFU / g, the numerical value of the aramid fiber calligraphy and painting paper is smaller than 10 CFU / g, and the storage cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of calligraphy and painting paper, and specifically relates to a preparation method of aramid calligraphy and painting paper. Background Art

[0002] Calligraphy and painting is a general term for calligraphy and painting. Chinese calligraphy and painting is an art form with a long history and profound cultural connotations. It is both an artistic expression and a cultural treasure. It has multiple meanings such as cultural inheritance, artistic aesthetics, investment value, and cultural exchange between China and foreign countries.

[0003] Traditional calligraphy and painting paper is mainly composed of three components: cellulose, hemicellulose and lignin. Cellulose is composed of many β-glucose groups and is very stable at room temperature. As the temperature rises, its tensile strength decreases accordingly, and the aging of the paper accelerates. Under the conditions of high temperature, light and oxygen, an oxidation reaction will occur to form fragile oxidized cellulose. When the temperature is below zero, the paper will become brittle due to the freezing of the moisture contained inside. In addition, dry hot air will cause the moisture in the paper to evaporate excessively, causing the paper to become hard, brittle and easy to break. On the contrary, a humid environment will also make the paper damp and hydrolyzed, and will also cause the handwriting with poor water resistance to fade and become unclear. At the same time, a humid environment is also conducive to the growth and reproduction of harmful microorganisms. Traditional calligraphy and painting paper has relatively strict requirements for the storage environment. The temperature is controlled between 14-24℃ and the humidity is controlled between 45%-60%. It must be insect-proof and anti-corrosive, as well as fire-proof and light-proof, and the storage cost is relatively high. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing aramid calligraphy and painting paper to solve the problem that traditional calligraphy and painting paper in the prior art has poor high and low temperature resistance and corrosion resistance.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a method for preparing aramid painting and calligraphy paper, comprising the following steps:

[0006] Sp1: Place the aramid paper roll on the unwinding rack as the base material for calligraphy and painting paper. Aramid is a synthetic polymer material. The aramid paper base material has excellent fire resistance, corrosion resistance, and high temperature resistance.

[0007] Sp2: The aramid paper substrate enters the UV printing machine through the paper guide roller. The aramid paper substrate passes through the printing machine and is painted and written with UV ink. The UV printing process is a printing process that dries and cures the ink through ultraviolet light. It is necessary to match the ink containing photosensitizer with the UV curing lamp, which can make the polymerized monomers in the ink produce gluing and hardening in a very short time (shorter than 1 second). The ink is quickly fixed on the surface of the aramid paper substrate by ultraviolet irradiation. Compared with traditional lithography, UV printing can achieve a relatively high color effect, with bright colors and long-lasting color without fading;

[0008] Sp3: The printed aramid paper is introduced into a smoking cage, and smoke is provided by burning wood. The aramid paper turns yellow after passing through the smoking cage. The smoke is provided by burning biodegradable biomass fuel.

[0009] Sp4: The smoked aramid painting and calligraphy is sent to the hot pressing area through a conveying roller for hot pressing;

[0010] Sp5: After the aramid painting and calligraphy paper is hot-pressed, it is led to the winding rack for winding.

[0011] Preferably, the thickness of the aramid paper substrate is set to 0.13-0.25 mm.

[0012] Preferably, the temperature of the fumigation box is set at 260-300°C.

[0013] Preferably, the paper feeding speed of the aramid paper substrate is set to 2.5 m / min.

[0014] Preferably, the hot pressing zone is composed of two groups of hot pressing rollers, the temperature of the first group of hot pressing rollers is set to 320-350°C, and the pressure of the first group of hot pressing rollers is set to 4-5MPa, so as to perform surface plasticization treatment on the calligraphy and painting paper and enhance the tensile strength and ink bonding strength of the calligraphy and painting paper; the temperature of the second group of hot pressing rollers is set to 280-300°C, and the pressure of the second group of hot pressing rollers is set to 3-4MPa, so as to smooth the surface of the calligraphy and painting paper and release internal stress at the same time.

[0015] Preferably, the aramid paper substrate adopts a natural white meta-aramid paper substrate, which can be used for a long time at a high temperature of 180-200° C., and still maintains its performance at extreme temperatures, has excellent thermal stability, and is not easily deformed or damaged.

[0016] The beneficial effects of the present invention are as follows:

[0017] The invention adopts aramid paper to make calligraphy and painting paper, which not only has excellent flame retardant performance, high and low temperature resistance, strong corrosion resistance, stable structure, and has the conditions for long-term storage, but also has better wear resistance than traditional calligraphy and painting, at 198g / m 2 ±2g / m 2 Under the pressure of , aramid paper was worn up to 25,000 times, but it was still not worn out, while Japanese silk was worn out after 4025 times. Its antiseptic performance is better. Under the same conditions, the Japanese silk mold count is 50CFU / g, while the value of aramid calligraphy and painting paper is less than 10CFU / g, which reduces storage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example:

[0021] like Figure 1 As shown, an embodiment of the present invention provides a method for preparing aramid painting and calligraphy paper, comprising the following steps:

[0022] Sp1: Place the aramid paper roll on the unwinding rack as the base material for calligraphy and painting paper. The aramid paper base material adopts the white meta-aramid paper base material. The meta-aramid paper base material can be used for a long time at a high temperature of 180-200°C and still maintains its performance at extreme temperatures. It has excellent thermal stability and is not easy to deform or damage. The thickness of the aramid paper base material is set to 0.13-0.25mm, and the paper feeding speed of the aramid paper base material is set to 2.5m / min. Aramid is a synthetic polymer material. The aramid paper base material has excellent fire resistance, corrosion resistance, and high temperature resistance.

[0023] Sp2: The aramid paper substrate enters the UV printing machine through the paper guide roller. The aramid paper substrate passes through the printing machine and is painted and written with UV ink. The UV printing process is a printing process that dries and cures the ink through ultraviolet light. It is necessary to match the ink containing photosensitizer with the UV curing lamp, which can make the polymerized monomers in the ink produce gluing and hardening in a very short time (shorter than 1 second). The ink is quickly fixed on the surface of the aramid paper substrate by ultraviolet irradiation. Compared with traditional lithography, UV printing can achieve a relatively high color effect, with bright colors and long-lasting color without fading;

[0024] Sp3: The printed aramid paper is introduced into a smoking cage. The temperature of the smoking box is set at 260-300℃. Smoke is provided by burning wood. The aramid paper turns yellow after passing through the smoking cage. The smoke is provided by burning biodegradable biomass fuel.

[0025] Sp4: The smoked aramid paper is sent to the hot pressing area through the conveying roller for hot pressing. The hot pressing area consists of two groups of hot pressing rollers. The temperature of the first group of hot pressing rollers is set to 320-350℃, and the pressure of the first group of hot pressing rollers is set to 4-5MPa, which plasticizes the surface of the paper and strengthens the tensile strength and ink bonding strength of the paper; the temperature of the second group of hot pressing rollers is set to 280-300℃, and the pressure of the second group of hot pressing rollers is set to 3-4MPa, which flattens the surface of the paper and releases the internal stress at the same time;

[0026] Sp5: After the aramid painting and calligraphy paper is hot-pressed, it is led to the winding rack for winding.

[0027] The present invention tests the flame retardancy, wear resistance, waterproof and moisture-proof performance, mildew and tensile strength of the aramid painting and calligraphy paper products and Japanese silk:

[0028] 1. Flame retardant performance test, as shown in Table 1 and Table 2 below, t1, t2 are afterflame time, t3 is afterburning time:

[0029]

[0030] Table 1 Flame retardant properties test results of aramid painting and calligraphy paper finished products

[0031]

[0032] Table 2 Flame retardant properties test results of aramid painting and calligraphy paper finished products

[0033] By comparing the flame retardant test results of aramid calligraphy and painting paper and Japanese silk, it can be found that the flame retardant performance of aramid calligraphy and painting meets the UL94-V0 level, but the Japanese silk sample is not flame retardant at all and does not meet the UL94-V level.

[0034] 2. Abrasion resistance test, test standard: GB / T 7706-2008 letterpress decoration printing, judging standard: 198g / m 2 ±2g / m 2 The number of times the paper sample is worn out under the pressure is shown in Table 3.

[0035]

[0036] Table 3 Wear resistance test results

[0037] By comparing the flame retardant test results of aramid paper and Japanese silk, it can be found that under the same pressure, the aramid paper was worn more than 6 times as many times as the Japanese silk without being worn out, while the Japanese silk was worn out after 4025 times, indicating that the wear resistance of aramid paper is higher than that of Japanese silk.

[0038] 3. Waterproof and moisture-proof performance test, test standard: GB / T 1540-2002 Determination of water absorption of paper and paperboard, evaluation criteria: Under the same temperature, water volume and pressure, the amount of water absorbed by the paper sample, the less water absorbed, the better the waterproof and moisture-proof ability, as shown in Table 4 below,

[0039]

[0040] Table 4 Waterproof and moisture-proof performance test results

[0041] By comparing the test results of the waterproof and moisture-proof performance of aramid painting and calligraphy paper and Japanese silk, it can be found that the water absorption of Japanese silk is 19% greater than that of aramid paper, and its waterproof and moisture-proof performance is lower than that of aramid painting and calligraphy paper.

[0042] 4. Mold test, test standard: GB / T 15104-2006 Decorative veneer veneer artificial board and 4-level blue label after 15 hours of exposure, the degree of color change, the higher the test result level, the more resistant to sunlight exposure, as shown in Table 5 below,

[0043]

[0044] Table 5 Fungus test results

[0045] By comparing the mold test results of aramid calligraphy and painting paper and Japanese silk, it can be found that the mold performance of aramid calligraphy and painting paper is better.

[0046] V. Tensile strength test, test standard: GB / T 12914-2008, as shown in Table 6 below,

[0047] Sample name Tensile strength kN / m Aramid Painting and Calligraphy 22.5

[0048] Table 6 Tensile strength test results

[0049] In summary, aramid painting and calligraphy has obvious advantages in flame retardancy, wear resistance, waterproof and moisture-proof properties, mildew resistance, and tensile strength properties.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing aramid painting and calligraphy paper, characterized in that: The following steps are involved: Sp1: Place the aramid paper roll on the unwinding rack as the base material for calligraphy and painting paper; Sp2: The aramid paper substrate enters the UV printing machine through the paper guide roller, and the aramid paper substrate passes through the printing machine and is painted and written with UV ink; Sp3: The printed aramid paper is introduced into a smoking cage, and smoke is provided by burning wood. After passing through the smoking cage, the aramid paper for calligraphy and painting turns yellow; Sp4: The smoked aramid painting and calligraphy is sent to the hot pressing area through a conveying roller for hot pressing; Sp5: After the aramid painting and calligraphy paper is hot-pressed, it is led to the winding rack for winding.

2. The method for preparing aramid painting and calligraphy paper according to claim 1, characterized in that: The thickness of the aramid paper substrate is set to 0.13-0.25 mm.

3. The method for preparing aramid painting and calligraphy paper according to claim 1, characterized in that: The temperature of the smoke box is set at 260-300°C.

4. The method for preparing aramid painting and calligraphy paper according to claim 1, characterized in that: The feeding speed of the aramid paper substrate is set to 2.5 m / min.

5. The method for preparing aramid painting and calligraphy paper according to claim 1, characterized in that: The hot pressing zone consists of two groups of hot pressing rollers, the temperature of the first group of hot pressing rollers is set to 320-350°C, and the pressure of the first group of hot pressing rollers is set to 4-5MPa, the temperature of the second group of hot pressing rollers is set to 280-300°C, and the pressure of the second group of hot pressing rollers is set to 3-4MPa.

6. The method for preparing aramid painting and calligraphy paper according to claim 1, characterized in that: The aramid paper substrate is a natural white meta-aramid paper substrate.

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