CN210596821U - Wear-resistant and cigarette-burning-resistant melamine impregnated paper - Google Patents
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Abstract
The utility model discloses a wear-resisting cigarette firing resistant melamine impregnated paper, include first melamine resin layer, first urea-formaldehyde resin layer, plain look body paper or printing decorative paper, second urea-formaldehyde resin layer, thermal-insulated wear-resisting melamine resin layer and the second melamine resin layer of from bottom to top arranging in proper order. The utility model discloses a melamine impregnated paper has excellent wear resistance and resistant cigarette firing effect, and the dalle that obtains with its and substrate veneer is wear-resisting, mar resistant, acid and alkali-resistance, resistant cigarette firing performance such as all very excellent, long service life.
Description
Technical Field
The utility model relates to wear-resistant and cigarette burning-resistant melamine impregnated paper.
Background
Melamine-impregnated paper, also known as "melamine" paper, is a gummed paper having a resin content and a volatile content, which is obtained by impregnating a plain base paper or a printing decorative paper with an amino resin (e.g., melamine-formaldehyde resin and urea-formaldehyde resin) and drying the impregnated paper to a certain extent. The melamine impregnated paper can be pasted on the surface of the artificial board substrate through hot pressing, so that the surface performance and the appearance quality of the artificial board substrate are obviously improved, and the decorative plate which is hard, wear-resistant, scratch-resistant, acid-base-resistant, scalding-resistant and pollution-resistant is obtained.
However, the urea-formaldehyde resin layer in the melamine impregnated paper is poor in cigarette burning resistance (resistance to burning of burning cigarette), and is easily damaged, and the poor heat insulation capability of the urea-formaldehyde resin layer also causes yellowing of plain base paper or printing decorative paper due to heating, thereby seriously affecting the use experience. In addition, with the increasing demand of people, the wear resistance of the decorative plate prepared by the existing melamine impregnated paper needs to be further improved.
Therefore, there is a need to develop a melamine impregnated paper having excellent abrasion resistance and resistance to cigarette burning.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wear-resisting cigarette firing resistant melamine impregnated paper.
The utility model adopts the technical proposal that:
the melamine impregnated paper comprises a first melamine resin layer, a first urea-formaldehyde resin layer, plain base paper or printing decorative paper, a second urea-formaldehyde resin layer, a heat-insulating wear-resistant melamine resin layer and a second melamine resin layer which are sequentially arranged from bottom to top; the heat-insulating wear-resistant melamine resin layer is made of melamine resin added with glass fiber powder.
Preferably, the thickness of the first melamine resin layer is 150 to 250 μm.
Preferably, the thickness of the first urea resin layer is 200-300 μm.
Preferably, the gram weight of the printing decorative paper is 60-110 g/m2。
Preferably, the thickness of the second urea resin layer is 200-300 μm.
Preferably, the heat-insulating wear-resistant melamine resin layer comprises the following components in parts by mass:
melamine: 160-200 parts of a solvent;
formaldehyde solution: 180-220 parts;
caprolactam: 6-9 parts of a solvent;
diethylene glycol: 5-8 parts;
glass fiber powder: 10-20 parts;
triethanolamine: 1-3 parts;
water: 70-110 parts.
Preferably, the thickness of the heat-insulating wear-resistant melamine resin layer is 50-100 μm.
Preferably, the formaldehyde solution is 37% by mass of formaldehyde solution.
Preferably, the thickness of the second melamine resin layer is 100 to 200 μm.
The preparation method of the wear-resistant and cigarette burning-resistant melamine impregnated paper comprises the following steps:
1) preparing melamine resin, urea resin and heat-insulating wear-resistant melamine resin;
2) impregnating plain base paper or printing decorative paper with urea-formaldehyde resin, and drying and pre-curing;
3) coating heat-insulating wear-resistant melamine resin on one surface of the plain base paper or the printing decorative paper treated in the step 2), and then drying and pre-curing;
4) dipping the plain base paper or the printing decorative paper treated in the step 3) with melamine resin, and then drying and pre-curing to obtain the wear-resistant and cigarette burning resistant melamine dipped paper.
Preferably, the temperature for drying and pre-curing in the step 2) is 130-140 ℃.
Further preferably, the drying and pre-curing in the step 2) are performed in a three-section oven, and the temperature is 130 ℃, 140 ℃ and 135 ℃ in sequence.
Preferably, the temperature of the baking in the step 3) is 130-140 ℃.
Further preferably, the step 3) of the baking intervention curing is performed in a three-section oven at 130 ℃, 140 ℃ and 135 ℃ in sequence.
Preferably, the temperature of the baking in the step 4) is 140-165 ℃.
Further preferably, the baking interference curing in the step 3) is performed in a five-section oven at the temperature of 140 ℃, 160 ℃, 165 ℃, 160 ℃ and 140 ℃ in sequence.
The surface of the decorative plate is hot-pressed and adhered with the antibacterial and ultraviolet-resistant melamine impregnated paper.
The utility model has the advantages that: the utility model discloses a melamine impregnated paper has excellent wear resistance and resistant cigarette firing effect, and the dalle that obtains with its and substrate veneer is wear-resisting, mar resistant, acid and alkali-resistance, resistant cigarette firing performance such as all very excellent, long service life.
1) The glass fiber powder is added into the heat-insulating wear-resistant melamine resin layer of the melamine impregnated paper, so that the heat-insulating property and the wear-resistant property of the melamine resin layer can be obviously improved, the high-temperature yellowing of plain base paper or printing decorative paper can be avoided, and the lasting decoration and beautification effect can be further kept;
2) the glass fiber powder is added into the heat-insulating wear-resistant melamine resin layer of the melamine impregnated paper, and the glass fiber powder has excellent insulating property, so that the melamine resin layer can be endowed with insulating property;
3) the melamine impregnated paper of the utility model has simple preparation process and low production cost.
Drawings
Fig. 1 is a schematic structural diagram of the antibacterial ultraviolet-resistant melamine impregnated paper of the present invention.
The attached drawings indicate the following: 10. a first melamine resin layer; 20. a first urea resin layer; 30. plain base paper or printing decorative paper; 40. a second urea resin layer; 50. a heat-insulating wear-resistant melamine resin layer; 60. a second melamine resin layer.
Detailed Description
The invention will be further explained and illustrated with reference to specific embodiments.
Example 1:
a wear-resistant and cigarette ignition resistant melamine impregnated paper (with a structure schematic diagram shown in figure 1) comprises a first melamine resin layer (with a thickness of 150 μm), a first urea-formaldehyde resin layer (with a thickness of 200 μm), and a printing decorative paper (with a grammage of 80 g/m) arranged from bottom to top in sequence2) The composite material comprises a first urea-formaldehyde resin layer (with the thickness of 200 mu m), a second urea-formaldehyde resin layer (with the thickness of 80 mu m), a heat-insulating wear-resistant melamine resin layer (with the thickness of 120 mu m) and a second melamine resin layer (with the thickness of 120 mu m).
The preparation method of the wear-resistant and cigarette burning-resistant melamine impregnated paper comprises the following steps:
1) adding 350 parts by mass of formaldehyde solution (mass fraction 37%), 90 parts by mass of urea and 3 parts by mass of urotropine into a reaction kettle, heating to 90 ℃ within 30min, then keeping the temperature of 90-95 ℃ for 60min, testing whether resin has an atomization point in water at 10 ℃ until the atomization point at 32 ℃ is tested, then adding 2 parts by mass of triethanolamine, cooling to 80 ℃, adding 40 parts by mass of urea, cooling to 65 ℃, adding 30 parts by mass of urea and 75 parts by mass of water, and cooling to 40 ℃ to obtain urea-formaldehyde resin;
2) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain melamine resin;
3) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 15 parts by mass of glass fiber powder (1250 meshes) and 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain the heat-insulating wear-resistant melamine resin;
4) impregnating the printing decorative paper with urea-formaldehyde resin (added with a curing agent and a penetrating agent, wherein the mass ratio of the urea-formaldehyde resin to the curing agent to the penetrating agent is 100:0.3:0.2), and then placing the printing decorative paper in a three-section oven (the temperature is 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
5) coating heat-insulating wear-resistant melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the heat-insulating wear-resistant melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2: 0.3) on one side of the printing decorative paper treated in the step 4), and then placing the printing decorative paper in three-section drying ovens (with the temperature of 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
6) dipping the printing decorative paper treated in the step 5) into melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2:0.2:0.3), and then placing the dipped melamine resin, the curing agent to the release agent to the dedusting agent in five sections of ovens (the temperature is 140 ℃, 160 ℃, 165 ℃, 160 ℃ and 140 ℃ in sequence) for pre-curing to obtain the wear-resistant and cigarette burning resistant melamine dipped paper.
And (3) performance testing:
1) the pre-curing degree of the wear-resistant and cigarette-burning-resistant melamine impregnated paper is 35%, and the volatile matter content is 6.9%;
2) the cigarette burning resistance grade of the wear-resistant cigarette burning resistance melamine impregnated paper is 5 grade;
3) the wear resistance test result of the wear resistance and cigarette burning resistance melamine impregnated paper is that more than 90% of patterns are reserved for the grinder 100r (more than 50% of the patterns are reserved for the plate grinder with patterns as qualified).
Note:
1) the cigarette burning resistance grade is tested according to the test method for physical and chemical properties of GB/T17657-2013 artificial boards and veneer artificial boards, and is divided into the following 5 grades: stage 1 bubbling and/or cracking; grade 2 clear brown spots, but the surface was not destroyed; moderate changes in grade 3 gloss and/or brownish stain; grade 4 with slight change in gloss and/or brownish stain at a certain angle; grade 5, no obvious change;
2) the wear resistance is tested according to the test method for the physical and chemical properties of the artificial board and the veneer artificial board GB/T17657 and 2013.
Example 2:
a wear-resistant and cigarette ignition resistant melamine impregnated paper (the structural schematic diagram is shown in figure 1) comprises a first melamine resin layer (with the thickness of 150 μm), a first urea-formaldehyde resin layer (with the thickness of 240 μm), and printing decorative paper (with the gram weight of 90 g/m) arranged from bottom to top in sequence2) The resin comprises a first urea-formaldehyde resin layer (thickness is 240 mu m), a heat-insulating wear-resistant melamine resin layer (thickness is 50 mu m) and a second melamine resin layer (thickness is 150 mu m).
The preparation method of the wear-resistant and cigarette burning-resistant melamine impregnated paper comprises the following steps:
1) adding 350 parts by mass of formaldehyde solution (mass fraction 37%), 90 parts by mass of urea and 3 parts by mass of urotropine into a reaction kettle, heating to 90 ℃ within 30min, then keeping the temperature of 90-95 ℃ for 60min, testing whether resin has an atomization point in water at 10 ℃ until the atomization point at 32 ℃ is tested, then adding 2 parts by mass of triethanolamine, cooling to 80 ℃, adding 40 parts by mass of urea, cooling to 65 ℃, adding 30 parts by mass of urea and 75 parts by mass of water, and cooling to 40 ℃ to obtain urea-formaldehyde resin;
2) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain melamine resin;
3) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 12 parts by mass of glass fiber powder (1250 meshes) and 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain the heat-insulating wear-resistant melamine resin;
4) impregnating the printing decorative paper with urea-formaldehyde resin (added with a curing agent and a penetrating agent, wherein the mass ratio of the urea-formaldehyde resin to the curing agent to the penetrating agent is 100:0.3:0.2), and then placing the printing decorative paper in a three-section oven (the temperature is 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
5) coating heat-insulating wear-resistant melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the heat-insulating wear-resistant melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2: 0.3) on one side of the printing decorative paper treated in the step 4), and then placing the printing decorative paper in three-section drying ovens (with the temperature of 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
6) dipping the printing decorative paper treated in the step 5) into melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2:0.2:0.3), and then placing the dipped melamine resin, the curing agent to the release agent to the dedusting agent in five sections of ovens (the temperature is 140 ℃, 160 ℃, 165 ℃, 160 ℃ and 140 ℃ in sequence) for pre-curing to obtain the wear-resistant and cigarette burning resistant melamine dipped paper.
And (3) performance testing:
1) the pre-curing degree of the wear-resistant and cigarette-burning-resistant melamine impregnated paper is 33 percent, and the volatile matter content is 7.1 percent;
2) the cigarette burning resistance grade of the wear-resistant cigarette burning resistance melamine impregnated paper is 4 grade;
3) the wear-resistant test result of the wear-resistant and cigarette burning-resistant melamine impregnated paper is that more than 90% of patterns are reserved for 100r of the mill.
Example 3:
an abrasion-resistant and cigarette-burning-resistant melamine impregnated paper (the structural schematic diagram is shown in figure 1) comprises a first melamine resin layer (with the thickness of 160 mu m), a first urea-formaldehyde resin layer (with the thickness of 270 mu m), plain base paper, a second urea-formaldehyde resin layer (with the thickness of 270 mu m), a heat-insulating and abrasion-resistant melamine resin layer (with the thickness of 90 mu m) and a second melamine resin layer (with the thickness of 130 mu m) which are sequentially arranged from bottom to top.
The preparation method of the wear-resistant and cigarette burning-resistant melamine impregnated paper comprises the following steps:
1) adding 350 parts by mass of formaldehyde solution (mass fraction 37%), 90 parts by mass of urea and 3 parts by mass of urotropine into a reaction kettle, heating to 90 ℃ within 30min, then keeping the temperature of 90-95 ℃ for 60min, testing whether resin has an atomization point in water at 10 ℃ until the atomization point at 32 ℃ is tested, then adding 2 parts by mass of triethanolamine, cooling to 80 ℃, adding 40 parts by mass of urea, cooling to 65 ℃, adding 30 parts by mass of urea and 75 parts by mass of water, and cooling to 40 ℃ to obtain urea-formaldehyde resin;
2) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain melamine resin;
3) adding 200 parts by mass of formaldehyde solution (mass fraction 37%), 180 parts by mass of melamine and 90 parts by mass of water into a reaction kettle, adjusting the pH value to 9.5 by using 40% by mass of sodium hydroxide solution, heating to 80 ℃ for 40min, adding 8 parts by mass of caprolactam and 7 parts by mass of diethylene glycol after the solution is clear, heating to 95 ℃, keeping the temperature for 40min, testing whether the resin has an atomization point in 10 ℃ water until the atomization point is tested to be 25 ℃, testing the water solubility ratio according to the mass ratio of the resin to the water of 1:2.2 until the temperature is 20 ℃ and the resin is whitened, adding 18 parts by mass of glass fiber powder (1250 meshes) and 2 parts by mass of triethanolamine, and cooling to 40 ℃ to obtain the heat-insulating wear-resistant melamine resin;
4) impregnating plain base paper with urea-formaldehyde resin (added with a curing agent and a penetrating agent, wherein the mass ratio of the urea-formaldehyde resin to the curing agent to the penetrating agent is 100:0.3:0.2), and then placing the impregnated plain base paper in a three-section oven (the temperature is 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
5) coating heat-insulating wear-resistant melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the heat-insulating wear-resistant melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2: 0.3) on one surface of the plain base paper treated in the step 4), and then placing the plain base paper in a three-section oven (the temperature is 130 ℃, 140 ℃ and 135 ℃ in sequence) for pre-curing;
6) dipping the plain base paper treated in the step 5) into melamine resin (added with a curing agent, a release agent and a dedusting agent, wherein the mass ratio of the melamine resin to the curing agent to the release agent to the dedusting agent is 100:0.2:0.2:0.3), and then placing the base paper into five sections of ovens (the temperature is 140 ℃, 160 ℃, 165 ℃, 160 ℃ and 140 ℃ in sequence) for pre-curing to obtain the wear-resistant and cigarette burning resistant melamine dipped paper.
And (3) performance testing:
1) the pre-curing degree of the wear-resistant and cigarette burning-resistant melamine impregnated paper is 37 percent, and the volatile matter content is 6.8 percent;
2) the cigarette burning resistance grade of the wear-resistant cigarette burning resistance melamine impregnated paper is 5 grade;
3) the result of the abrasion test of the abrasion-resistant and cigarette-burning-resistant melamine impregnated paper is that the 500r mill has no transparent bottom (the 350r mill of the plain-color plate has no transparent bottom, which is qualified).
Comparative example:
a plain melamine impregnated paper was prepared exactly as in example 1, except that no glass fiber powder was added.
And (3) performance testing:
1) the pre-curing degree of the common melamine impregnated paper is 38 percent, and the volatile matter content is 6.8 percent;
2) the common melamine impregnated paper has a cigarette burning resistance grade of 2;
3) the result of the abrasion resistance test of the ordinary melamine impregnated paper is that 60% of the pattern is retained by the mill 100 r.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. The wear-resistant and cigarette burning-resistant melamine impregnated paper is characterized in that: the color-changing fabric comprises a first melamine resin layer, a first urea-formaldehyde resin layer, plain base paper or printing decorative paper, a second urea-formaldehyde resin layer, a heat-insulating wear-resisting melamine resin layer and a second melamine resin layer which are sequentially arranged from bottom to top; the heat-insulating wear-resistant melamine resin layer is made of melamine resin added with glass fiber powder.
2. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the thickness of the first melamine resin layer is 150-250 mu m.
3. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the thickness of the first urea resin layer is 200-300 mu m.
4. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the gram weight of the printing decorative paper is 60-110 g/m2。
5. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the thickness of the second urea-formaldehyde resin layer is 200-300 mu m.
6. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the thickness of the heat-insulating wear-resistant melamine resin layer is 50-100 mu m.
7. The wear-resistant cigarette burning-resistant melamine impregnated paper according to claim 1, wherein: the thickness of the second melamine resin layer is 100-200 mu m.
8. A dalle which characterized in that: the antibacterial and ultraviolet-resistant melamine-impregnated paper according to any one of claims 1 to 7 is attached to the surface by hot pressing.
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Effective date of registration: 20220608 Address after: 528137 planning of science and Technology Industrial Zone, Leping Town, Sanshui District, Foshan, Guangdong, 52, B (F1), (F2), (F3), (F5), (F7) Patentee after: GUANGDONG TIANYUAN HUIBANG NEW MATERIAL CO.,LTD. Patentee after: Foshan Tianyuan Hejin Decoration Material Co., Ltd Address before: 528137 planning of science and Technology Industrial Zone, Leping Town, Sanshui District, Foshan, Guangdong, 52, B (F1), (F2), (F3), (F5), (F7) Patentee before: GUANGDONG TIANYUAN HUIBANG NEW MATERIAL CO.,LTD. Patentee before: FOSHAN NANHAI TIANYUAN MAOXIN NEW MATERIAL CO.,LTD. Patentee before: FOSHAN TIANYUAN HEJIN DECORATION MATERIAL CO.,LTD. |