A kind of melamine decorative veneer and preparation method thereof
Technical field
The invention discloses a kind of melamine decorative veneer and preparation method thereof, belong to decorative materials technology.
Background technology
A large amount of at present dalles that use have UV plate, varnish board, melamine decorative veneer etc.The UV plate is to be base material with the MDF, and the surface adopts UV (Ultraviolet, ultraviolet ray) photocuring to handle, and makes liquid lacquer become solid film at short notice, and makes base material form firm claw-like infiltration with filming, and the surface of sheet material can not come off.Good, bright in colour, the anti-chemistry of UV plate brightness is strong, service life long, not easy to change, easy to clean, but cost is higher, plant equipment and technology is required high, and the surface is not anti-wipes examination, easy autoclasis, self-destruction, core is from great.Varnish board be after spraying paint through the sheet material of heat drying PROCESS FOR TREATMENT, the varnish board brightness is good, bright in colour, is easy to moulding, water resistance is good, stain resistance is strong, easy to clean; But it is high that the complex manufacturing of varnish board, technological level require, and the percent defective height holds at high price; And the surface is not anti-wipes examination, in use easily produces aberration, easily autoclasis, and not environmental protection needs care meticulously during use, just be difficult to repair once occur damaging, and integral replacing.Melamine decorative veneer, full name are melamine-impregnated bond paper facing wood-based plates.It is the paper that has different colours or texture to be put into the melamine resin adehsive binder soak, and is dried to certain state of cure then, it is posted on particieboard, medium density fibre board (MDF) or hardboard surface the decorative panel that forms through hot pressing.Melamine decorative veneer can be copied various patterns arbitrarily, and is bright and lustrous, and as the veneer of various wood-based plates and timber, hardness is big, wear-resisting, good heat resistance, chemical resistance is good, can resist the abrasion of general acid, alkali, grease and alcohol equal solvent, surface smoothing is bright and clean, easily maintenance clean.Since melamine decorative veneer possessed natural timber the excellent properties that can not have both, so be usually used on the decoration of interior architecture and various furniture, cabinet.But because the activity of existing melamine thermosetting natural gum is not high, resin can not immerse facing paper evenly, up hill and dale, makes that the brightness of existing melamine decorative veneer is not high, can not satisfy the needs of market to the bright facing plate of height.
Summary of the invention
The objective of the invention is to overcome above shortcomings in the prior art, provide a kind of brightness high melamine decorative veneer.Another object of the present invention is to provide the preparation method of this melamine decorative veneer.
In order to realize the foregoing invention purpose, the invention provides following technical scheme:
A kind of melamine decorative veneer, constitute by backing material plate and melamine-impregnated bond paper, described backing material plate is particieboard, medium density fibre board (MDF) or hardboard, described melamine-impregnated bond paper is flooded in the melamine resin adehsive binder by paper and processes, it is characterized in that: described melamine resin adehsive binder is made up of glue base-material and glue auxiliary agent
The component of described glue base-material and weight proportion thereof are:
Water 50-60 part, weight percent concentration are 34.0%-37.4% formalin 90-130 part, melamine 80-100 part, diethylene glycol (DEG) 10-20 part;
The component of described glue auxiliary agent and weight proportion thereof are:
Curing agent 0.3-0.6 part, remover 0.3-0.6 part, bleeding agent 0.3-0.6 part, brightener 0.3-0.6 part,
The part by weight of described glue base-material and glue auxiliary agent is: 100: 1.2-100: 2.4.
In the melamine resin adehsive binder, the proportioning of described each component of glue base-material is preferably:
55 parts in water, weight percent concentration are 120 parts of 34.0%-37.4% formalins, 90 parts of melamines, 18 parts of diethylene glycol (DEG)s.
The proportioning of described each component of glue auxiliary agent is preferably:
0.4 part in curing agent, 0.4 part of remover, 0.5 part of bleeding agent, 0.5 part of brightener.
Described curing agent is commercial product, can be preferably aroma type organic acid anhydride class curing agent for organic acid anhydride class curing agent such as straight chain type, aroma type, halo types.
Described remover is commercial product, can be the remover of types such as epoxy resin or phenolic resins remover.
Described bleeding agent is commercial product, can be the Sulfonates bleeding agent, as dioctyl maleate sodium sulfonate or nekal.
Described brightener is commercial product, can be styrene, acrylonitrile or acrylate etc.
The preparation method of melamine decorative veneer of the present invention may further comprise the steps:
(1) preparation glue base-material: take by weighing each component by glue base-material proportion speed, water, formalin are added reactor, stir, add the melamine powder again, start agitator and stir (agitator speed changes for per minute 900-1500), be warming up to 98-102 ℃, mixed liquor was under agitation reacted 90-110 minute, the water-soluble multiple of liquid is 1: during 2.5-3.0, the pH value that adds caustic soda adjusting mixing material in reactor is 9.0, glue base-material mixed liquor is cooled to 40-50 ℃ adds diethylene glycol (DEG), it is standby to stir;
(2) preparation melamine resin adehsive binder: in the glue base-material, add curing agent, remover, bleeding agent, the brightener of formula ratio, stir, be mixed with the melamine resin adehsive binder;
(3) preparation melamine-impregnated bond paper: paper is placed the melamine resin adehsive binder, soak and solidified 7-8 minute, be processed into the melamine-impregnated bond paper, the weight of described melamine-impregnated bond paper is the 135%-145% before the gluing, fugitive constituent is 6.0-7.5%, the precuring degree is 30-50% (fugitive constituent refers to every square metre of moisture ratio, and the precuring degree refers to every square metre of glue curing degree ratio);
(4) melamine decorative veneer: the melamine-impregnated bond paper is lain against above the backing material plate, place and overlay into melamine decorative veneer on the press, the press condition of work is: pressure 16-20MPa, 180 ℃-200 ℃ of temperature, the time of overlaying is every 35-65s, after overlaying unnecessary waste paper is scraped reason totally, place on the cool frame, be cooled to 40 ℃-60 ℃ and promptly get melamine decorative veneer.
Compared with prior art, beneficial effect of the present invention: melamine decorative veneer of the present invention, constitute by backing material plate and melamine-impregnated bond paper, described melamine-impregnated bond paper is soaked in the melamine resin adehsive binder by paper and processes, and described melamine resin adehsive binder is made up of glue base-material and glue auxiliary agent.The prescription of melamine resin adehsive binder of the present invention is definite by repetition test, proportioning by each component in the definite glue base-material of repetition test reaches the optimum molar state, each component cooperatively interacts and can strengthen molecular activity, the glue permeance property is strengthened greatly, and solid state is balanced and reasonable more; The present invention adds the organic acid anhydride class curing agent of the superior performance of hiding in the glue base-material, make glue can keep the synchronously balanced of curing in the quick-setting while, add bleeding agent can make glue faster, more even, impregnated in the bond paper more up hill and dale, the bond paper fineness that adds after remover makes bond paper can separate, separate with steel form easilier when the demoulding is better, add brightener can strengthen resin activity, make the glossiness of paper higher.Glue base-material of the present invention and glue auxiliary agent cooperatively interact, and have guaranteed the flowability and the solidification effect thereof of melamine resin adehsive binder effectively, and help backing material plate face melamine paper separate with hot pressing template fast when hot press overlays.
Melamine decorative veneer processing technology of the present invention is simple, each technological parameter is to select meticulously according to the character of each component in the melamine resin adehsive binder, preparation method of the present invention makes the melamine resin adehsive binder can more even, thoroughly immerse facing paper, the pollution-free smell decorative panel of repressed formation high brightness damage resistant.Maintain that the hardness that traditional melamine decorative veneer has is big, wear-resisting, in the good heat resistance, plurality of advantages such as chemical resistance is good, surface smoothing is bright and clean, easy maintenance clean, have more the advantage of high brightness, visual impact is extremely strong, it is particularly outstanding at light its expressive force to be set in the appropriate exhibition room, be good at catching consumer's eyeball, make some dealers after going out sample with melamine decorative veneer of the present invention, face is taken goods to the inventor repeatedly in a short time.The melamine decorative veneer of high light of the present invention has a very special place, and horizontal exactly doing with perpendicular doing can produce distinct visual experience, is the material that designer and consumer like very much.According to the different designs requirement of furniture, the melamine minute surface plaque of high light is perpendicularly done, is horizontally done even tiltedly do, can produce noble elegant, unfold atmosphere, enliven multiple design style and artistic effects such as celebrating.Meanwhile, adopt different edging materials (particularly aluminium frame edge sealing) all can set off out the unusual and whole peculiar decoration texture of highlighted corrugation face door-plate.The melamine minute surface plaque of high light also can be used with the melamine plate of high wet look or metal covering, and the design style of the multiterminal that change thus and imagination combination provide the space of displaying one's talent for the designer.
The specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
The melamine decorative veneer of present embodiment is made of particieboard and melamine-impregnated bond paper.
The preparation method of the melamine decorative veneer of present embodiment is as follows:
(1) preparation glue base-material: take by weighing each component by glue base-material proportion speed: water 50kg, weight percent concentration is 37.4% formalin 90kg, melamine powder 80kg, diethylene glycol (DEG) 10kg; The 740 organic acid curing agent 0.69kg that Germany's bodyguard alive is produced, the 523 remover 0.69kg that Germany's bodyguard alive is produced, the 959 bleeding agent 0.69kg that the German bodyguard of living is produced, 905 brightener 0.69kg of the German bodyguard production of living.The part by weight of glue base-material and glue auxiliary agent is in the present embodiment: 100: 1.2.
Water, formalin are added reactor, stir, add the melamine powder again, start agitator and stir, making its rotating speed is that per minute 900 changes, and is warming up to 98-102 ℃, mixed liquor was under agitation reacted 100 minutes, the water-soluble multiple of liquid is 1: during 2.5-3.0, the pH value that adds caustic soda adjusting mixing material in reactor is 9.0, glue base-material mixed liquor is cooled to 40-50 ℃ of adding diethylene glycol (DEG) cools off standby;
(2) preparation melamine resin adehsive binder: add curing agent, remover, bleeding agent, the brightener of formula ratio in the glue base-material, stir, being mixed with fugitive constituent is 6.0%, and the precuring degree is 30% melamine resin adehsive binder;
(3) preparation melamine-impregnated bond paper: paper is placed the melamine resin adehsive binder, soak and solidified 7-8 minute, be processed into the melamine-impregnated bond paper, the weight of described melamine-impregnated bond paper is 135% before the gluing;
(4) melamine decorative veneer: the melamine-impregnated bond paper is lain against above the particieboard, overlay into melamine decorative veneer in press, the press condition of work is: pressure 18-20MPa, 185 ℃-195 ℃ of temperature, the time of overlaying is every 45-60s, it is clean after overlaying unnecessary waste paper to be scraped reason, places on the cool frame, coldly really promptly gets melamine decorative veneer to 40 ℃-60 ℃.
Embodiment 2
The melamine decorative veneer of present embodiment is made of medium density fibre board (MDF) and melamine-impregnated bond paper.
The preparation method of the melamine decorative veneer of present embodiment is as follows:
(1) preparation glue base-material: take by weighing each component by glue base-material proportion speed: water 55kg, weight percent concentration is 34% formalin 120kg, melamine powder 90kg, diethylene glycol (DEG) 18kg; The 740 organic acid curing agent 1.51kg that Germany's bodyguard alive is produced, epoxy resin remover 1.51kg, dioctyl maleate sodium sulfonate bleeding agent 1.89kg, styrene brightener 1.89kg.The part by weight of glue base-material and glue auxiliary agent is in the present embodiment: 100: 2.4.
Water, formalin are added reactor, stir, add the melamine powder again, start agitator and stir, making its rotating speed is that per minute 1500 changes, and is warming up to 98-102 ℃, mixed liquor was under agitation reacted 90 minutes, the water-soluble multiple of liquid is 1: during 2.5-3.0, the pH value that adds caustic soda adjusting mixing material in reactor is 9.0, glue base-material mixed liquor is cooled to 40-50 ℃ of adding diethylene glycol (DEG) cools off standby;
(2) preparation melamine resin adehsive binder: add curing agent, remover, bleeding agent, the brightener of formula ratio in the glue base-material, stir, being mixed with fugitive constituent is 7.5%, and the precuring degree is 30% melamine resin adehsive binder;
(3) preparation melamine-impregnated bond paper: paper is placed the melamine resin adehsive binder, soak and solidified 7-8 minute, be processed into the melamine-impregnated bond paper, the weight of described melamine-impregnated bond paper is 145% before the gluing;
(4) melamine decorative veneer: the melamine-impregnated bond paper is lain against above the medium density fibre board (MDF), overlay into melamine decorative veneer in press, the press condition of work is: pressure 18-20MPa, 185 ℃-195 ℃ of temperature, the time of overlaying is every 45-60s, it is clean after overlaying unnecessary waste paper to be scraped reason, places on the cool frame, coldly really promptly gets melamine decorative veneer to 40 ℃-60 ℃.
Embodiment 3
The melamine decorative veneer of present embodiment is made of hardboard and melamine-impregnated bond paper.
The preparation method of the melamine decorative veneer of present embodiment is as follows:
(1) preparation glue base-material: take by weighing each component by glue base-material proportion speed: water 60kg, weight percent concentration is 35% formalin 130kg, melamine powder 100kg, diethylene glycol (DEG) 20kg; Aroma type organic acid anhydride class curing agent 1.4kg, phenolic resins remover 1.4kg, nekal bleeding agent 1.4kg, acrylate brightener 1.4kg.The part by weight of glue base-material and glue auxiliary agent is in the present embodiment: 100: 1.8.
Water, formalin are added reactor, stir, add the melamine powder again, start agitator and stir, making its rotating speed is that per minute 1200 changes, and is warming up to 98-102 ℃, mixed liquor was under agitation reacted 110 minutes, the water-soluble multiple of liquid is 1: during 2.5-3.0, the pH value that adds caustic soda adjusting mixing material in reactor is 9.0, glue base-material mixed liquor is cooled to 40-50 ℃ of adding diethylene glycol (DEG) cools off standby;
(2) preparation melamine resin adehsive binder: add curing agent, remover, bleeding agent, the brightener of formula ratio in the glue base-material, stir, being mixed with fugitive constituent is 7.0%, and the precuring degree is 40% melamine resin adehsive binder;
(3) preparation melamine-impregnated bond paper: paper is placed the melamine resin adehsive binder, soak and solidified 7-8 minute, be processed into the melamine-impregnated bond paper, the weight of described melamine-impregnated bond paper is 140% before the gluing;
(4) melamine decorative veneer: the melamine-impregnated bond paper is lain against above the hardboard, overlay into melamine decorative veneer in press, the press condition of work is: pressure 18-20MPa, 185 ℃-195 ℃ of temperature, the time of overlaying is every 45-60s, it is clean after overlaying unnecessary waste paper to be scraped reason, places on the cool frame, coldly really promptly gets melamine decorative veneer to 40 ℃-60 ℃.