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Melamine softened coating paper and production process thereof
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A melamine and production process technology, which is applied in the field of melamine softened coated paper and its production process, can solve the problems of whitening of the surface of the melamine coating layer, low production efficiency, easy scratching and the like, and achieves good curing performance and high production efficiency. , reduce the effect of surface whitening
Pending Publication Date: 2022-03-01
东莞市高益装饰材料有限公司
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Problems solved by technology
[0003] However, the veneer panels formed by laminating melamine-impregnated paper are prone to problems such as whitening, scratches, carbonization and cracking of the surface of the melamine-coated layer. Currently, the production efficiency of veneer panels prepared by laminating melamine-impregnated paper is low
Method used
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preparation example 1
[0047] Preparation of a modifier, including the following steps:
[0048] Step A: 550g of citric acid, 120 g n-butanol and 30 g of a 55% sulfuric acid solution, placed in a reflux reaction kettle, heated to 135 ° C, constant temperature reaction for 5 h, decompression distillation, allowing excess n-butanol to volatilize, Get a mixture A;
[0049] Step B: It is weighed 450 g of acetic anhydride, 25 g of diiso-dioxionyl oxyter escene and 35 g of phthalate, adding the mixture A obtained by step A, opening reflow, heating to 90 ° C, separating funnel The separation solution was performed, and the hydroxide solution with a mass fraction of the oil was 10%, and then rinsed with water, and the decompression distillation was carried out to obtain a modifier.
preparation example 2
[0051] Preparation of a modifier, including the following steps:
[0052] Step A: 500 g of citric acid, 110 g n-butanol and 25 g of a mass fraction of 50% sulfuric acid solution, placed in a reflux reaction kettle, heated to 115 ° C, constant temperature reaction for 4 h, decompression distillation, allowing excess n-butanol to volatilize, Get a mixture A;
[0053] Step B: Weigh 400 g of acetic anhydride, 22 g of diisoleal diiso lysate and 32 g of phthalate, adding the mixture A obtained by step A, opening reflow, heating to 80 ° C, separating funnel Separation, rinse the hydroxide solution of 7% of the hydroxide solution of 7%, then rinsed with water, and then evaporated to the modifier.
preparation example 3
[0055] Preparation of a modifier, including the following steps:
[0056] Step A: 450g of citric acid, 100 g n-butanol and 20 g of a 35% sulfuric acid solution, placed in a reflux reaction kettle, heated to 100 ° C, constant temperature reaction for 3 h, distilled pressure reduction, and allowed excess n-butanol to volatilize, Get a mixture A;
[0057] Step B: 350 g of acetic anhydride, 20 g of dirabus or 30 g of phthalate diisoleyl oxide, adding the mixture A obtained by step A, opening reflow, heating to 70 ° C, separating funnel Separation, rinse the oil-based mass fraction of 5%, rinsed with water, and then evaporated, and the modifier is obtained.
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Abstract
The invention relates to the technical field of impregnated paper production, in particular to melamine softened coated paper and a production process thereof. Comprising the following steps: gum dipping treatment: completely dipping raw paper in a urea-formaldehyde resin dipping solution, taking out, and drying to obtain dipped raw paper; coating treatment is conducted, specifically, the two faces of the impregnated raw paper are coated with the melamine complexing agent, drying is conducted, and the melamine softened coated paper is obtained, the process has the advantages of being easy to operate and high in production efficiency, and the melamine complexing agent has the advantages of being short in curing time, good in adhesion and good in heat resistance. The melamine adhesive layer obtained by coating the melamine complexing agent has better wear resistance and scratch resistance, so that the scratch resistance and wear resistance of the melamine softened coating paper are improved, and the possibility of surface whitening, scratching, carbonization and cracking of the melamine coating adhesive is reduced.
Description
Technical field [0001] The present application relates to the technical field of impregnated paper production, more specifically, it is a melamine softened coated paper and its production process. Background technique [0002] Impregnated paper has the advantages of wear resistance, rich styles, impact resistance, deformation resistance, pollution resistance, flame retardant, moisture proof, environmental protection, non-fading, easy installation and easy care. It is widely used in cabinets, wardrobes and laminate flooring. In the preparation process of the veneer paper, it is necessary to impregnate it with melamine glue and then solidify to form melamine-impregnated paper, which is then hot-pressed with the board to form the veneer panel. [0003] However, the current decorative panels formed by laminating melamine-impregnated paper are prone to problems such as whitening of the surface of the melamine coating layer, easy scratches, carbonization, and cracking. Currently, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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