APPLICATION OF PERMANENT COATINGS TO FIBER ASSEMBLIES AND FILAMENTS AND METHODS OF USE
20240033776 ยท 2024-02-01
Inventors
Cpc classification
B05D2401/40
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
A complete and comprehensive device for the purposes and applications of permanent and penetrative coatings to a nearly unlimited number of synthetic and natural fiber assemblies (superstructure assemblies) or filaments (shapes) to enhance their aesthetic appearance with pigment, physical performance by changing strength or elongation, medical capability with antimicrobial material, or environmental sustainability.
Claims
1. The device in claim 1 presents about 1 superstructure assembly or shape to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes.
2. The device in claim 1 places each superstructure assembly or shape spaced about 1 nanometers to about 10 micrometers apart, on a flat plane, at any one time, with the surface slightly touching, to ensure alignment and prevent entanglement.
3. The device in claim 1 presents about 1 superstructure assembly or shape to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes that are each about 600 meters to 20,000 or more meters in length.
4. The device in claim 1 uses an adjustable comb or reed assembly to ensure that the 1 superstructure assembly or shape to about 2,500 or more individual remain closely aligned and spaced from about 1 nanometers to about 10 micrometers.
5. The method in claim 2 presents the superstructure assembly or shapes are uniformly presented to an enclosure with a flat, horizontal, AC electrode that uses a high voltage corona discharge plasma from about 0 Kw to about 6 Kw to impart changes in the properties of the whole surface of the superstructure assembly or shape that make it more electrochemically receptive or adhesive for subsequent addition of coating material.
6. The device in claim 3 where a superstructure assembly or shape is introduced to an additional and separate enclosed space with multiple vertically arranged rollers adequately spaced in a sinusoidal array, some of which are submerged in a fluid bath.
7. The method in claim 3 where a superstructure assembly or shape, moving from about 3 meters per minute to about 100 meters per minute, is submerged in the fluid bath of surfactant wetting agents of about 100 liters to 1,000 liters that function to create a charged surface that reduces surface tension on the superstructure assembly or shape, opening gaps in all defined surfaces, enhancing chemical receptivity for subsequent addition of coating material.
8. The method in claim 3 where the bath of surfactant wetting agents may be cationic, depending upon the substrate upon which the superstructure assembly or shape is based, to ensure that relaxation of surface tension is optimized by substrate type.
9. The method in claim 3 where the bath of surfactant wetting agents may be anionic, depending upon the substrate upon which the superstructure assembly or shape is based, to ensure that relaxation of surface tension is optimized by substrate type.
10. The method in claim 3 where the bath of surfactant wetting agents may be acidic, depending upon the substrate upon which the superstructure assembly or shape is based, to ensure that relaxation of surface tension is optimized by substrate type.
11. The method in claim 3 enhances the surfactant wetting agent with an additional thermoplastic polymer to ensure proper surfactant binding with a particle size about 1 nanometer to about 5 nanometers.
12. The device in claim 3 mechanically mixes the surfactant wetting agent and thermoplastic polymer for optimized consistency for not less than 5 minutes and not more than 10 minutes at initial start-up and continues throughout the process at no less than 25 rpm to 35 rpm.
13. The device in claim 3 where an ultrasonic power is applied from about 0 Kw to about 3 Kw is used to optimize the penetration of surfactant wetting agent and thermoplastic polymer into the whole superstructure assembly or shape.
14. The device in claim 3 may be bypassed to create a less penetrating protective coating for carbon, glass, and polyester superstructure assembly or shapes.
15. The method in claim 3 may be modified to create a less penetrating protective coating, above 15% of the total volume but less than 90% of the total volume, for carbon, glass, and polyester superstructure assembly or shapes by moving the superstructure above 35 meters per minute.
16. The method in claim 3 may be modified to create a less penetrating protective coating above 15% of the total volume, but less than 90% of the total volume, for carbon, glass, and polyester superstructure assembly or shapes by altering the strength of cationic, anionic, and acidic surfactant wetting agents.
17. The method in claim 3 may be modified to create a less penetrating protective coating above 15% of the total volume, but less than 90% of the total volume, for carbon, glass, and polyester superstructure assembly or shapes by adding more or less thermoplastic polymer to ensure surfactant binding with particle size of about 1 nanometer to 5 nanometers.
18. The method in claim 3 may be modified to create a less penetrating protective coating of about 15% of the total volume, but less than 90% of the total volume, for carbon, glass, and polyester superstructure assembly or shapes. by optimizing ultrasonic power applied to the superstructure assembly and shape from about 0 KW to about 3 KW.
19. The method in claim 3 collects all surfactant wetting agents, thermoplastic polymer, and other materials and recirculates them without treatment or modification for reuse in creating a protective coating. This results in a zero discharge and closed-loop effect that eliminates all liquid, solid, and chemical waste.
20. The device in claim 4 includes an additional and separate enclosed space with multiple vertically arranged rollers adequately spaced in a sinusoidal array to permit lengths of the superstructure assembly or shape and the substrate that makes up that superstructure assembly or shape to adequately and precisely absorb the wetting agent as it travels through the enclosure from about 3 meters per minute to about 100 meters per minute over a linear distance of about 40 meters to about 75 meters.
21. The device in claim 5 contains an additional and enclosed space in which the top of the superstructure assembly or shape is presented at a 90 degree angle and a speed of about 3 meters per minute to 100 meters per minute to an aero-diffusion device.
22. The method in claim 5 in which the aero-diffusion device presents a chemical mixture consisting of a mix of coating material and thermoplastic polymer at a pressure of about 0.5 Megapascal to about 1.5 Megapascal that bonds to the top of the substrate components of the superstructure assembly or shape.
23. The method in claim 5 in which the aero-diffusion device presents of chemical mixture of coating material and thermoplastic polymer of a particle size to promote specific performance such as imparting pigment, bacterial resistance, temperature resistance, strength enhancement, luminosity, reflectivity, or environmental performance (water resistance or other).
24. The device in claim 5 aero-diffusion device offers a spray angle of between 45 degrees to 110 degrees from 1 centimeter to 10 centimeters from the surface of the superstructure assembly or shape.
25. The device of claim 5 rotates the superstructure assembly or shape, consisting of 1 superstructure assembly to about 2,500 or more individual shapes. by 180 degrees.
26. The device of claim 5 is an additional and enclosed space in which the reverse side of the superstructure assembly or shape is presented at a 90 degree angle at a speed of about 3 meters per minute to about 100 meters per minute to an aero-diffusion device.
27. The method in claim 5 in which the aero-diffusion device presents a chemical mixture consisting of coating material at a pressure of about 0.5 Megapascal to about 1.5 Megapascal that bonds to the top of the substrate components of the superstructure assembly or shape.
28. The method in claim 5 in which the aero-diffusion device presents of chemical mixture of coating material of a particle size to promote specific performance such as imparting pigment, bacterial resistance, temperature resistance, strength enhancement, luminosity, reflectivity, or environmental performance (water resistance or other).
29. The method of chemical mixture in claim 5 consists of certain mechanical properties and has a particle size of about 1 nanometer to about 5 nanometers.
30. The method of chemical mixture in claim 5 also contains an additional thermoplastic polyester of a particle size of about 1 nanometer to about 5 nanometer to ensure that the active chemical is permanently bound to the substrate and superstructure assembly or shape.
31. The method of chemical mixture in claim 5 is mechanically applied to the superstructure assembly or shape, at a speed of about 3 meters per minute to about 100 meters per minute, with adjustments to aero-diffusion pressure in megapascal, particle size in nanometers, and thermoplastic polymer, in a repeatable pattern to create a solid and uniform protective coating for performance applications.
32. The method of chemical mixture in claim 5 is mechanically applied to the superstructure assembly or shape, at a speed of about 3 meters per minute to about 100 meters per minute, with adjustments to aero-diffusion pressure in megapascal, particle size in nanometers, and thermoplastic polymer, in a repeatable pattern to create a irregular and non-uniform protective coating for aesthetic applications.
33. The method of chemical mixture in claim 5 is mechanically applied in such a way to ensure that aero-diffusion pressure in megapascal, particle size in nanometers, and thermoplastic polymer penetrates the surface of the superstructure or assembly from about 20% of the total volume to about 90% of the total volume.
34. The device in claim 5 mechanically mixes prior to aero-diffusion the coating materials and thermoplastic polymer for optimized consistency for not less than 5 minutes and not more than 10 minutes at initial start-up and continues throughout the process at no less than 25 rpm to 35 rpm.
35. The method of claim 5 prior to aero-diffusion presents a chemical mixture of coating material of a particle size to promote specific performance such as imparting pigment, bacterial resistance, temperature resistance, strength enhancement, lubrication, luminosity, reflectivity, or environmental performance (water resistance or other), along with a thermoplastic polymer to create links formed during a process or moderate heat, bringing about a cross-linking reaction, producing covalent bonds, which are insensitive to hydrolyzing agents (washing fluids, perspiration, industrial atmospheres, etc.).
36. The device in claim 5 that applies the chemical mixture may be manually operated with a multiplicity of application heads and nozzles to ensure adequate aero-diffusion for about 1 to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes at any one time.
37. The device in claim 5 may also be operated digitally through the use of a multiplicity of automated application heads, nozzles, and software to control timing to ensure adequate aero-diffusion for about 1 to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes at any one time.
38. The method in claim 5 collects all coating materials, thermoplastic polymer, and other materials and recirculates them without treatment or modification for reuse in creating a protective coating. This results in a zero discharge and closed-loop effect that eliminates all liquid, solid, and chemical waste.
39. The device in claim 6 includes an additional and separate enclosed space with multiple vertically and horizontally arranged rollers adequately spaced in a sinusoidal array to permit lengths of the superstructure assembly or shape and the substrate that makes up that superstructure assembly or shape to adequately and precisely absorb coating materials and thermoplastic polymer as it travels through the enclosure from about 3 meters per minute to about 100 meters per minute over a linear distance of about 40 meters to about 75 meters.
40. The device in claim 7 presents the superstructure assembly or shape to an additional and enclosed space at a speed from about 3 meters per minute to 100 meters per minute, exposing it to a solution tank of thermoplastic polymer of 100 liters to 1,000 liters.
41. The method in claim 7 presents the superstructure assembly or shape to an additional and enclosed space at a speed from about 3 meters per minute to 100 meters per minute, exposing it to a solution tank of 100 to 1,000 liters that is ultrasonic energized from about 0 Kw to about 3 Kw, as a final binding process.
42. The method in claim 7 results in a final surface coating that penetrates the whole superstructure assembly or shape surface to about 20% to about 90% of the total volume.
43. The method in claim 7 collects all surfactant thermoplastic polymer, and other materials, and recirculates them without treatment or modification for reuse in creating a final protective coating. This results in a zero discharge and closed-loop effect that eliminates all liquid, solid, and chemical waste.
44. The device in claim 8 presents the superstructure assembly or shape enters an additional and enclosed space, a device in claim 6, at a speed from about 3 meters per minute to 100 meters per minute.
45. The method in claim 8 presents the superstructure assembly or shape to a steam atmosphere with a temperature ranging from about 130 C to about 150 C to enable the chemistry applied to completely cure on the superstructure assembly or shape and remove extensive moisture.
46. The device in claim 9 adds a 1 micrometer to 5 micrometer protective wax coating to about 1 superstructure assembly or shape to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes
47. The device in claim 10 uses an adjustable comb or reed assembly to ensure that the 1 superstructure assembly or shape to about 2,500 individual remain closely aligned and spaced from about 0 micrometers to about 10 micrometers.
48. The device in claim 10 presents about 1 superstructure assembly or shape to about 2,500 or more individual but closely aligned superstructure or assemblies or shapes that are each about 600 meters to 20,000 or more meters in length are loaded onto a cylindrical drum.
49. The method in claims 1 through 11 are subjected to a uniform tension from about 35 Newtons to 100 Newtons that ensure that the superstructure assembly or shapes are elongated throughout the process to ensure absorption of wetting agent to effect a permanent change in the surface of the superstructure assembly or shape.
50. The method in claims 1 through 11 are subjected to a uniform tension from about 35 Newtons to 100 Newtons that ensure that the superstructure assembly or shapes are elongated throughout the process to permit penetration and a permanent change in the surface of the superstructure assembly or shape.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The disclosure will now be described, by way of example, with reference to the accompanying drawings in which:
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
DETAILED DESCRIPTION
[0022] As used herein, the following definitions shall apply unless otherwise indicated.
I. Definitions
[0023] As used herein, substrate is an underlying layer of basic materials used to form a superstructure. These materials may include carbon nanotubes, filaments, or natural or synthetic fibers.
[0024] As used herein, substrate types refers to individual filaments or fibers of natural or synthetic origin.
[0025] As used herein, superstructure is a physical structure extended or developed from a basic substrate form. Examples could be multi-axial tapes woven from carbon filaments to yarns constructed from cellulosic materials such as cotton, wool, or rayon.
[0026] As used herein, superstructure assemblies and shapes refers to single endless filaments made from synthetic materials, multiple filament structures spun into cylindrical cords or flat tapes; Fibers of short length synthetic or natural materials spun into cylindrical yarns or formed into flat tapes
[0027] As used herein, flat plane refers to the horizontal presentation of one, dozens, hundreds, or thousands of superstructure assemblies on a flat horizontal plan in which the superstructure are lying side-by-side and are slightly touching one another as measured in nanometers or micrometers.
[0028] As used herein, corona discharge plasma explains that many materials are chemically inert, functionally nonporous, or have low surface tensions. High voltage Corona Discharge Plasma treatment has the effect modifying the surface to improve adhesion, permitting permanent coating in subsequent steps.
[0029] As used herein, surfactant refers to compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid. Surfactants are cationic, anionic, or acidic depending upon the superstructure presented for coating.
[0030] As used herein, thermoplastic polymer refers to a coating in which a binder, thermoplastic polymers are formed by additional polymerization and are soft and less brittle, as well as being soluble in organic solvents, are used to coat superstructure assemblies or shapes. Thermoplastic polymers can be recycled. Thermoplastic polymers can also reduce friction and act as a lubricant.
[0031] As used herein, adhesion refers to the tendency of dissimilar surfaces to cling to one another through dispersive adhesion in which attractive forces between two materials to intermolecular interactions between molecules of each material.
[0032] As used herein, gaps are rifts or fissures on the surface of a superstructure or assembly. All surfaces feature gaps that may be measured in nanometers or micrometers, and if treated electrically, chemically, or electrochemically, can be populated with materials that make up a substantial coating that can penetrate as little as 20% of the superstructure to as much as 90% of the superstructure.
[0033] As used herein, aero-diffusion is a technique for applying a continuity of heterogeneous material or permanent coating to a superstructure assemblies or shapes under the conditions of steady temperature-humidity. The continuity of the wetness technique is justified on the principle of equality of chemical potential.
[0034] As used herein, fixing is a chemical process that produces the toughening or hardening of polymer materials by cross-linking of polymer chains by exposure to temperature gradients.
[0035] As used herein, penetration refers to the extent to which coating materials penetrate the surface of a superstructure. In some cases described as a donut or ring of permanent coating material that penetrates the surface of the a superstructure. In some cases the makeup of the superstructure may limit penetration, in other cases, it may be by design that penetration is either minimized from about 20% to about 90%.
II. Devices and Systems
[0036] Preparation Modules And Other Embodiments
[0037] One aspect of the invention is the plurality of superstructure assemblies or shapes 10 moving in direction 11 with a preset tension and speed that are first separated 13 and closely aligned before exposure to a high voltage plasma corona discharge device 14 before exit at 12.
[0038] In one embodiment of the invention, superstructure assemblies or shapes 10 come off one at time from individual reels or packages before 13.
[0039] In another embodiment of the invention, superstructure assemblies or shapes 10 come off warp beams in quantities of as much as 2,500 or more before 13.
[0040] In some embodiments of the invention the speed and tension of 10 may be increased or decreased.
[0041] In some embodiments the plurality of superstructure assemblies or shapes 10 can number from 1 to 2,500 or more.
[0042] In a further embodiment of the invention the plurality of superstructure assemblies or shapes 10 move in direction 11 with a preset tension or speed enter 30 where they are controlled by the rollers in 21 prior to submersion into a surfactant solution bath 22 charged with certain levels of ultrasonic energy, whereby they exit at 12.
[0043] In one embodiment of the invention the solution batch 22 may be cationic.
[0044] In another embodiment of the invention the solution bath 22 may be anionic.
[0045] In some embodiments of the invention the solution bath 22 may be acidic.
[0046] In some embodiments of the invention all of the unused solution bath 22 is collected and reused until the supply is exhausted.
[0047] In a further embodiment of the invention the plurality of superstructure assemblies or shapes 10 move in direction 11 enter 23 which consists of a plurality of sinusoidally arranged rollers 24 that permit the applied wetting agent 23 to penetrate and dry.
[0048] In one embodiment there may be more rollers.
[0049] In another embodiment there may be fewer rollers.
Diffusion Module and Other Embodiments
[0050] In a further embodiment of the invention is the plurality of superstructure assemblies or shapes 10 moving in direction 11 with a preset tension and speed enter 40 where an aero-diffusion device 31 with nozzles 32 which present coating materials at a predetermined pressure to the plurality of superstructure assemblies or shapes.
[0051] In one embodiment of the invention the superstructure assemblies or shapes are inverted by 180 degrees and the reverse side of 10 are present to additional diffusion device 31.
[0052] In another embodiment of the invention the superstructure assemblies or shapes 10 moving in direction 11 with a present tension and speed enter 30 where an aero-diffusion device 31 with nozzles 32 which present a technically mixed solution of coating materials and thermoplastic binder 42 of a particle size and chemical cross-linking ability to promote specific performance such as imparting pigment, bacterial resistance, temperature resistance, strength enhancement, lubrication, luminosity, reflectivity, or environmental performance (water resistance or other).
[0053] In some embodiments of the invention all of the unused coating material 42 is collected and reused until the supply is exhausted.
Fixing Module and Other Embodiments
[0054] In another embodiment of the invention the superstructure assemblies or shapes 10 moving in direction 11 with a present tension and speed enter 50 where a fixing coating 53 and 55 is applied by 52 and 54 before exiting 11.
[0055] In some embodiments the amount of exposure may be increased by applying more fixing coating, increasing 53 and 55.
[0056] In additional embodiments the amount of exposure may be decreased by removing 55 to reduce fixing coating.
[0057] In some embodiments of the invention all of the unused fixing coating 52 and 54 is collected and reused until the supply is exhausted.
[0058] Integrated System
[0059] In another embodiment of the invention the superstructure assemblies or shapes 10 moving in direction 11 and exiting at 12 is intended to go through a specific processing sequence with a first step of high voltage corona plasma discharge 14, surfactant solution bath 22 with ultrasonic aspects, penetration in 23, application of coating materials in 42, and application of a fixing coating in 50.
III. Methods
[0060] Another aspect of the invention is mechanically preparing the superstructure assemblies or shapes for electrochemical treatment. A specialized mechanical comb is used to ensure that a plurality of superstructure assemblies, for example
[0061] In some embodiments this plurality of untangled but very closely aligned superstructure assemblies or shapes will be in contact with and pass over a flat AC electrode that spans the plurality of superstructure assembly or shapes and permits a high voltage corona plasma discharge effect to change the electrochemical properties of the superstructure assemblies or shapes so that they become more electrically adhesive when exposed to other chemical materials later in the process. This process is demonstrated in
[0062] In one embodiment only one superstructure assembly or shape will be will be in contact with and pass over a flat AC electrode that spans the plurality of superstructure assembly or shapes and permits a high voltage corona plasma discharge effect to change the electrochemical properties of the superstructure assemblies or shape so that they become more electrically adhesive when exposed to other chemical materials later in the process. This process is demonstrated in
[0063] In other embodiments the presentation of the superstructure assembly or shape will be in contact with and pass over a flat AC electrode as demonstrated in
[0064] Another aspect of the invention is use of a surfactant solution bath
[0065] In some embodiments the superstructure assemblies or shapes 10 (comprising materials
[0066] In some embodiments the superstructure assemblies or shapes 10 (comprising materials
[0067] In some embodiments the superstructure assemblies or shapes 10 (comprising materials
[0068] In some embodiments all of the materials used in the solution bath are collected, reused, and exhausted so that no waste is produced.
[0069] In other embodiments the presentation of the superstructure assembly or shape will bypass other steps in the process
[0070] Another aspect of the invention is to exposure the treated superstructure assemblies or shapes
[0071] In some embodiments the level of heat and humidity may vary according to the superstructure assemblies or shapes 10 and material characteristic
[0072] Another aspect of the invention
[0073] In other embodiments the mixed solution of coating materials and thermoplastic binder 42 of a particle size and chemical cross-linking ability to promote specific performance, materials 42 are of a particle size to promote specific aspects such as imparting pigment, bacterial resistance, temperature resistance, strength enhancement, lubrication, luminosity, reflectivity, or environmental performance (water resistance or other).
[0074] In some embodiments the aero-diffusion device can be mechanically controlled by an operator with an electric or similar motor.
[0075] In some embodiments the aero-diffusion device 31, 32, and 42 can be digitally controlled through electrical motors and other closed-loop means.
[0076] In other embodiments the four fixed aero-diffusion units may be replaced with three fixed aero diffusion units with a larger spray pattern.
[0077] In some embodiments the aero-diffusion unit may be a single unit mounted on a carriage transport that moves over the top of the surface of the superstructure assembly or shapes.
[0078] In some embodiments all of the coating materials used by the aero-diffusion device bath are collected, reused, and exhausted so that no waste is produced.
[0079] In some embodiments of the superstructure assemblies or shapes are inverted by 180 degrees and the reverse side of 10 are present to additional diffusion device 31 to complete coat the superstructure assemblies or shapes
[0080] In some embodiments the superstructure assemblies or shapes are dried and conditioned with heat, steam, both heat and steam, or other methods.
[0081] Another aspect of the invention
[0082] In some embodiments the amount of fixing coating may be increased 53 and 55.
[0083] In additional embodiments the amount of fixing coating may be decreased by removing 55.
[0084] In some embodiments of the invention all of the unused binder 52 and 54 is collected and reused until the supply is exhausted.
[0085] In another embodiment of the invention complete system the superstructure assemblies or shapes 10 moving in direction 11 and exiting at 12 is intended to go through a specific processing sequence with a first step of corona plasma discharge 14, solution bath 22, penetration in 23, application of coating materials in 42, and application of a binder in 50.
[0086] In some embodiments of the invention a single superstructure assembly or shape will be processed through the system at a specific speed and tension for a specific length of material
[0087] In some embodiments of the invention a plurality of superstructure assemblies or shapes will be processed through the system at a specific speed and tension for a specific length of material
IV. Examples
[0088] In order that the invention described herein may be more fully understood, the following examples are set forth. It should be understood that these examples are illustrative purposes only and are not to be construed as limiting the invention in any manner.
Example No. 1: Process Protocol
[0089] With reference to
[0090] A range of single superstructure assembly or shape from 600 meters to 20,000 meters or more in length, see
[0091] The superstructure assemblies or shapes are moved over an AC electrode 14 from 3 to 100 meters per minute per
[0092] The superstructure or assemblies are then feed into a surfactant bath of 100 liters to 1,000 liters that consists of anionic, cationic, or acidic surfactants mediated by ultrasonic energy from 0 Kw to 3 Kw per
[0093] After treatment in
[0094] The top of the superstructure assemblies or shapes enter the enclosure in
[0095] The bottom of the superstructure assemblies or shapes enter a duplicate enclosure in
[0096] A final processing stage applies a fixing coating to the superstructure assemblies or shapes 52, 53, 54, and 55. The fixing coating seals the coating applied per
[0097] A range of single superstructure assembly or shape up to 20,000 meters or more in length, see
Example No. 2: Carbon Tape Embodiment
[0098] With the advent of super-tall buildings such Burj Khalifa in Dubai (828 meters/2,716 feet in height) or Shanghai Tower in Shanghai (632 meters/2,703 feet in height), traditional steel hoist cables (elevator hoist cables or ropes are highly engineered and made of steel with other composites. They are not single wires but several strands of various sizes wrapped together. A typical cable or rope can have over 150 strands of wire precisely designed to be strong, flexible, and provide long service. Multiple wire strands are used to increase the life of the cable and give it flexibility) cannot be used for high speed elevators or lifts used for moving passengers and freight. Traditional steel cables have a length limitation of about 500 meters (1,640 feet); At that length the hoist rope weight and sheave (pulley) shaft load on the hoist motor becomes untenable. The solution to the plus-500 meter problem has been to use flat carbon tapes in place of steel hoist ropes in the Middle East, EU, and USA. In Asia there have been instances of round carbon fiber superstructures being used. Flat carbon tapes can serve up to a kilometer in length, weigh 90% less, reduce energy consumption, reduce noise or humming in the hoist way, and they have a much longer life. However, unlike steel hoist ropes, wear and damage are harder to diagnose, and all four sides of the tape have to be examined. Typical flat carbon tapes used for hoist applications are 250 millimeters (10 inches) wide by 50 millimeters (2 inches) thick and up to 2,500 meters (8,200 feet) long. The material is typically treated with a protective polyurethane coating to provide a level of lubrication and protection for the flat carbon tapes.
[0099] Safety is a key certification requirement for elevators and lifts, and steel hoist ropes have an inspection protocol that has been in place since the mid-1870's. A nascent protocol for flat carbon tapes has been developed, but requires further refinement. The invention provides the ability to replace the standard polyurethane coating step associated with flat carbon tapes with a colored protective coating. The colored protective coating is designed to accomplish three objectives: First, to differentiate flat carbon tape lengths by color. Second, to use the abrasion characteristics of the colored protective coating as an inspection tool. As the color wears, inspection becomes much easier (less visible color means more wear or damage) and can be accomplished through computer vision. Third, to provide needed lubrication with hoist sheaves (pulleys).
[0100] For the invention, a manufactured and fully thermoset single flat carbon tape of 250 millimeters (10 inches) in width, 50 millimeters (2 inches) in thickness, and 1,000 meters in length (3,280 feet), are presented on a specialized reel for protective color coating and then reloaded on a specialized reel.
[0101] With reference to
[0102] A length of single flat carbon tape from about 1,000 meters (3,280 feet) in length, see
[0103] The flat carbon tape is moved over an AC electrode 14 from 3 to 100 meters per minute per
[0104] The flat carbon tape bypasses the wetting bath
[0105] The top flat carbon tape enters the enclosure in
[0106] The bottom of the superstructure assemblies or shapes enter a duplicate enclosure in
[0107] A final processing stage applies a binder coating to the flat carbon tape 52, 53, 54, and 55. The binder seals the coating applied per
[0108] The flat carbon tape, up to 1,000 meters (3,280 feet) in length, see
OTHER EMBODIMENTS
[0109] It is to be understood that while the invention has been described in conjunction with the detailed description thereof, the foregoing description is intended to illustrate and not limit the scope of the invention, which is defined by the scope of the appended claims. Other aspects, advantages, and modifications are within the scope of the following claims.