TW201010859A - Process for the production of decorative paper with at least one phosphorescent surface portion for the permanent covering of furnishing components - Google Patents

Abstract

A process for the production of decorative paper with at least one phosphorescent surface portion and to be used for the permanent covering of furnishing components, comprises the following steps: preparing a support layer (2); impregnating the support layer (2) with a first thermosetting resin (3); preparing a fluid coating mix (4) comprising a phosphorescent substance (42) and a second thermosetting protective resin (41); coating at least a portion of a first surface (5) of the support layer (2) with a fluid coating mix (4), the first layer (5) becoming the visible surface of the support layer (2). The fluid coating mix (4) comprises a quantity by weight of the phosphorescent substance (42) variable from 4% to 20% by weight of the dry residue of the second protective resin (41).

Description

201010859 IX. Invention Description:

FIELD OF THE INVENTION The present invention relates to a method for producing a decorative paper having at least one phosphorescent surface portion and having a permanent coating of components such as cabinets, doors, and the like. In particular, decorative paper is typically used to cover cardboard panels or to produce laminated covers for equipment components. C. Prior Art 3 Background of the Invention The patent of the Italian Patent Application No. 950722 by Abe S.p.a. describes a method for producing a light-emitting panel of a plastic laminate. The method comprises preparing a continuous support film impregnated with a first resin. The method also includes the step of mixing the second resin with a luminescent material to obtain a fluid mixture comprising: from 3% to 50% of the luminescent material 'containing 6% by dry weight from 69 5 to 48 % of the three 15 polyamide resin' and a thickener from 5 to 2%. It can be seen immediately from the above that the amount of luminescent material varies from approximately 72% to approximately 17% of the dry residue of the melamine resin (the net value of water evaporated during processing). This mixture is applied over a first surface of the continuous support film. This 20 first surface will be the first visible surface of the panel. The method also includes the step of applying a continuous cover film in the form of pure alpha cellulose impregnated with a resin previously used to protect the subordinate film from abrasion and more generally free of rapid wear. The above panels have specific drawbacks. 201010859 In particular, the method requires a relatively complex manufacturing structure with a system for feeding and coupling the membranes. This leads to an increase in the cost of manufacturing the structure and an increase in the production time required to manufacture the illuminating panel. The production method is therefore more complicated and lengthy. 5 Furthermore, the appearance of a cover film will likely reduce the luminescence effect produced by the luminescent material located on the back. SUMMARY OF THE INVENTION The present invention is directed to a method for producing a permanently coated decorative paper having at least one phosphorescent surface portion for equipping components by providing a production system that is fast and capable of simplifying the known 10 production system. To overcome the above shortcomings. Another object of the present invention is to provide a method which achieves good results in terms of durability and intensity of phosphorescence of decorative paper. These and other objects, as detailed below, are achieved by the present invention by a method for producing a permanently coated decorative paper having at least one phosphorescent surface portion 15 for use in equipping a component, having an accompanying independent patent application Structural and operative features are described in the scope; other preferred embodiments are identified in the accompanying and corresponding dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS The invention is described in detail below with reference to the drawings, in which a preferred embodiment of the invention Figure 1 is a schematic diagram of the method. t EMBODIMENT] j 201010859 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A detail of a method for producing decorative paper having at least one phosphorescent surface portion for permanent coating of equipment components is provided below with reference to Figure 1. This method comprises the step of preparing a support layer 2. This support layer 2 is composed of 5 paper-like materials.纟 Prints such as graphic patterns used to simulate wood grain. Alternatively, it can be a single color, such as white or other colors. Further, the support layer 2 may advantageously comprise a continuous film 2, and in particular the layer 2 may be superposed on the continuous film 20. The step of preparing the support layer 2 includes the step of positioning and moving the layer 2 along a decorative paper processing line 6. The layer 2 can advantageously be stored first on the coiled reel 7 and placed at the beginning of the processing line 6. The method comprises the step of impregnating the support layer 2 with a first thermosetting resin 3. Preferably, the first resin 3 comprises a trimeric urethane resin or a knee resin. The step of impregnating the support layer 2 comprises the step of immersing the support layer 2 in a volume containing the first thermosetting resin 3. In this manner, the selective layer 2 15 is saturated with the first thermosetting resin 3. The step of π-breaking the support layer 2 also includes the step of compressing the support layer 2 to remove excess first thermosetting resin 3. By making the layer 2 pass through the support layer (4) main push? The two are pressed against a slot between the tapers 8 to perform this step. The step of compressing 7η is a step of immersing the support layer 2 in the cavity 3〇, and the method includes: the smear-containing material and the second heat-curable material The step of the mad mixture 4 . The second protective resin 41 is used to achieve the temperature of the mixture 4 and the normal chamber conditions. 7 201010859 The fluid coating mixture 4 may also advantageously comprise a hardener to accelerate the adhesion of the mixture to the support layer 2, an anti-resist agent and A release agent to improve operability during any subsequent press-fitting operation, an inhalant to facilitate penetration of the resin in the support layer 2 to an anti-foaming agent to prevent air bubbles from forming during the application of the mixture 4. The weight percentage of these 5 additives relative to 4 parts by weight of the fluid coating mixture is less than 2%, and preferably less than 1%. The second protective resin 41 may advantageously be a melamine resin. The second protective resin 41 may advantageously have a dry residue varying from 50% to 70%, and preferably equal to 60%. The term dry residue refers to the amount of resin retained relative to the initial amount of 10 after complete evaporation of water. This value should not be too high for the fluid to be applied in a liquid state. However, the values should not be too low to avoid the subsequent evaporation steps taking too long. Phosphorescent material 42 may advantageously coincide with the light-filling particles. In a timely manner, the dimensions of the filled particles 42 are homogeneous. It has a dimension of 8 to 12 microns. Phosphor 15 The substance 42 is responsible for the phosphorescence of the decorative paper. Phosphorescent term refers to the emission of light visible to the naked eye after excitation by a specific material (phosphor). This transmission remains for a significant period of time even after this incentive is stopped. The fluid coating mixture 4 is used to cover at least a portion of the first surface 5 of one of the support layers 2. In this manner, a protective coating is formed over the support layer 2. In the finished product, the first layer 5 becomes the visible surface of the support layer 2. The fluid coating mixture 4 can advantageously completely coat the first surface 5 of the support layer 2. The coating of the first surface 5 is achieved by a first applicator roller 12 'The rotating lateral surface of the first applicator roller 12 can contact the first surface 5 of the support layer 2 to remain on the support layer 2 Lower fluid coating mixture 4 ° 201010859 The step of coating at least a portion of one of the first surfaces 5 of the support layer 2 with the fluid coating mixture 4 comprises uniformly dispersing the fluid coating mixture 4 on a portion of the first surface 5 step. Specifically, the step of coating at least 5 portions of the first surface 5 with the fluid coating mixture 4 comprises drying the first resin 41 at a range of 2 to 3 grams per square meter of the first surface 5. The surface residue applies a step of applying the fluid coating mixture 4 to the first surface 5. The fluid coating mixture 4 contains an amount of the phosphorescent material weight which varies from 4% to 20% by weight of the dry residue of the second protective resin 41. The fluid-coated mixture 4 may advantageously comprise an amount of the phosphorescent material 42 which varies from 8% to 12% by weight of the dry residue of the second protective resin 41. Preferably, the fluid coating mixture 4 comprises an amount equal to about 10% by weight of the phosphorescent material 42 which is the weight of the dry residue of the second protective resin 41. The amount of the dry residue relative to the second protective resin 41 is reduced by the amount of 15 phosphorescent substance 42 by weight. The reason why this is important is that if a large amount of the disc light substance 42 is present on the surface with respect to the dry amount of the second resin 41, the disc light substance 42 will occupy a large volume originally occupied by the second protective resin 41; in this manner, The protective surface coating will be weakened and thinned, making it more porous and sensitive to impact and scratching. By the method according to the invention, another step of applying an additional protective film to the fluid-coating mixture 4 is required. This is an advantage for the simplicity of the processing system and the speed of production. In particular, Applicants have surprisingly found that decorative papers produced in accordance with the present invention have good results in terms of both phosphorescence and abrasion resistance. The method comprises the step of coating a second surface 51 of the support layer 2 with a first thermosetting resin 3 or a resin compatible with the first resin 3 9 201010859. The second surface 51 is opposite to the first surface 41. This effect is achieved by a second applicator roller 120 whose rotating lateral surface contacts the second surface 51 of the support layer 2 leaving a coating of the first thermosetting resin 3 on the support layer 2. 5 The importance of this step is that it improves the adhesion of the second surface 51 of the support layer 2 to the surface of a substrate applied by the thermal compression against the support layer 2. The former "resin compatible with the first resin 3" means a general resin capable of interacting with the first resin 3 impregnated with the support layer 2 to permit the support layer 2 to be permanently adhered to the surface of the substrate to which it is applied. The step of coating the second surface 51 of the support layer 2 with the first resin 3 or a compatible resin comprises the step of uniformly dispersing the first thermosetting resin 3 or a compatible resin on the second surface 51. The step of coating the second surface 51 with the first resin 3 may advantageously comprise applying the first resin 3 to the second surface 51 of the support layer 2 per square meter with a dry residue varying between 20 and 25 grams. 15 steps. The first and second resins 3, 41 need to be thermoset to avoid liquefying the resin after exposure to a heat source and adversely affecting the distribution of the protective coating of the first surface of the layer 2 or avoiding the second surface 51 itself from being detached therefrom. Connected Substrate The method also includes the step of evaporating excess water in the support layer 2. This step 2 occurs before the step of impregnating the support layer 2 and before the step of coating the first surface 5 to part f with the fluid coating mixture 4. This water evaporation step can advantageously take place in an oven provided along the decorative paper processing line 6. In this way, the humidity of the support layer 2 drops to a value between the outside and the coffee. Humidity term refers to the water quality that appears in decorative paper per unit volume. 201010859 篁. The method also includes the step of evaporating excess water in the support layer 2 at least partially coated with the fluid coating mixture 4. This evaporation step occurs after the step of coating at least a portion of the first surface 5 with the fluid mixture 4. Operationally, this evaporation step is performed by the heating member 110. The residual humidity of the support layer 2 and the fluid coating mixture 4 using this formula was reduced to 6%. The method further includes the step of subsequently cooling the support layer 2 at least partially coated with the fluid coating mixture 4. The cooling step is carried out after the step of evaporating excess water from the support layer 2 at least partially coated with the fluid coating mixture 4. This cooling step is useful because it avoids subsequent loading between the support layers 2 due to residual heat. Finally, if the support layer 2 is in the form of a continuous film 20, it is cut into sheets, for example, by a suitable rotary blade cutter. Different pages are then stacked on the appropriate gantry. Alternatively, the continuous film 20 is not cut into sheets and re-rolled again. 15

In particular, Applicants have discovered that a fluid coating mixture 4 having the following composition has specific and interesting results in terms of phosphorescence and abrasion resistance:

Mel/92 (melamine resin 60% dry weight) 86.6% water 7.56% Luminova, X8918 green FSF (lens particles) 4.7% resistance agent 0.38% inhalation 0.23% Cat 529 (hardener) 0.189% release agent 856 0.189% Ant. Flux A97 (antifoaming agent) 0.084% 11 201010859 A further object of the invention is a decorative paper comprising: - having at least one phosphorescent surface portion; - a permanent coating for the component parts; - in accordance with the invention The method is obtained. The fluid coating mixture 4, which is added to the floor 2, produces a cover that can be directly attached by the user. - The invention also has a cardboard panel for an object comprising a decorative paper according to the present month. It is possible to have a layer # of a rough panel due to the appearance of the decorative paper. The transfer of the slatted panel to the paper-filled paper processed by the method according to the present invention is achieved by hot pressing against the thermoset properties of the first -m 10 tree raft 3 previously applied to the support layer 2. The dust pressure is usually 2 to 5 〇, and the temperature between (9) C and 200 C is dust-proof. Another object of the present invention is a continuous continuous stack of 15 layers of CP^, which is generally identified by the abbreviation CPL (continuous pressure lamination), comprising a decorative paper according to the invention, using a hot continuous press, heat The continuous press is such that one or more of the continuous support films of a resin, preferably a phenolic resin, are coupled to the lion of the decorative paper according to the present invention. The number of continuous support films placed on each other with the axis © laminate is based on the desired thickness of the laminate itself. Downstream of the press, depending on the thickness of the laminate itself and its use, the laminate obtained can be re-rolled onto a reel or cut into short lengths. The invention has important advantages. Most importantly, it simplifies the production of sheets of decorative paper having at least one phosphorescent surface portion and makes it cheaper and faster. It will be appreciated that the described invention may be modified and altered in many ways without departing from the scope of the inventive concept. Moreover, all the details of the invention may be substituted by technically equivalent elements. All materials and dimensions used can be changed to meet specific needs. 5 [Simple description of the diagram] Figure 1 is not intended to be a method.

[Main component symbol description] 2...Support layer 3···First thermosetting resin 4...Fluid coating mixture 5···The first surface of the floor, the first layer 6...The decorative paper processing line 7...The coiled reel 8...pressing roller 11...heating member, oven 12...first applicator roller 20...continuous film 30...cavity 41...first surface of support layer, second thermosetting protective resin 42...phosphorescent substance 51...support layer Second surface 120...second applicator roll

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Claims (1)

201010859 X. Patent Application Range: 1. A method for producing a permanent coated decorative paper having at least one phosphorescent surface portion and for equipping a component, comprising the following steps: - preparing a support layer; a thermosetting resin to impregnate the support layer; - preparing a fluid coating mixture comprising a phosphor material and a second thermosetting protective resin; - coating the first surface of one of the support layers with a fluid coating mixture In part, the first layer becomes the visible surface 10 of the support layer; and the fluid coating mixture comprises the scale material weight which varies from 4% to 20% by weight of the dry residue of the second protective resin. a quantity. 2. The method of claim 1, wherein the fluid coating 15 mixture comprises an amount of the phosphorescent material weight which varies from 8% to 12% by weight of the dry residue of the second protective resin. 3. The method of claim 1 or 2, wherein the step of applying at least a portion of the first surface of the support layer with the fluid coating mixture comprises completely coating the fluid coating mixture with the fluid The step scale of the first surface of the support layer 20. 4. The method of claim 1 or 2, wherein the support layer comprises a continuous film. 5. The method of claim 1 or 2, wherein the step of preparing the support layer comprises the step of positioning and moving the support layer 201010859 along a decorative paper processing line. 6. The method of claim 1 or 2, wherein the step of immersing the support layer comprises the steps of: - immersing the support layer in a 5 tank containing the first thermosetting resin; The support layer is compressed to remove excess of the first thermosetting resin. 7. The method of claim 1 or 2, characterized in that it comprises a step of evaporating excess water in the support layer, the step occurring after the step of impregnating the support layer and the fluid coating the mixture Before the step of coating at least a portion of the first surface of the support layer 10. 8. The method of claim 1 or 2, characterized in that it comprises a step of evaporating excess water in the support layer at least partially coated with the fluid coating mixture. 9. The method of claim 8, characterized in that it comprises a step of cooling a portion of the support layer at least partially coated with the fluid coating mixture, the cooling step occurring at least partially After the step of evaporating excess water by the support layer coated with the fluid coating mixture. 10. The method of claim 1 or 2, wherein the step of coating the at least a portion 20 of the first surface of one of the support floors with the fluid coating mixture comprises uniformly dispersing the fluid coating mixture The step on the portion of the first surface. 11. The method of claim 1 or 2, wherein the step of coating at least a portion of the first surface with the fluid coating mixture comprises the first surface at 20 to 30 per square meter The 15 201010859 a dry surface residue of the second resin applies the fluid coating mixture to the first surface. 12. The method of claim 1 or 2, wherein the first thermosetting resin is a melamine resin or a urea resin. The method of claim 1 or 2, wherein the second protective resin is a melamine resin. The method of claim 1 or 2, wherein the second protective resin has a dry residue ranging from 50% to 70%. 15. The method of claim 1 or 2, wherein the phosphor 10 is superposed on phosphorescent particles. 16. The method of claim 15, wherein the phosphorescent particles have a homogeneity. 17. A decorative paper for permanent coating of an equipment component and having at least one phosphorescent surface portion, characterized in that it is obtained by a method according to any one or more of claims 1 to 16 wherein The fluid coating mixture creates a cover that can be directly adjacent to the user. 18. A cardboard panel, characterized in that it comprises a decorative paper as in claim 17 of the patent application. The gang-type immersion layer is characterized in that it contains decorative paper as in the η 20 item of the patent application. 16