CN112281507A - Multi-layer buffing for glass polishing and preparation and application thereof - Google Patents
Multi-layer buffing for glass polishing and preparation and application thereof Download PDFInfo
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- CN112281507A CN112281507A CN202011092498.0A CN202011092498A CN112281507A CN 112281507 A CN112281507 A CN 112281507A CN 202011092498 A CN202011092498 A CN 202011092498A CN 112281507 A CN112281507 A CN 112281507A
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- polishing
- polyurethane
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- coating
- release paper
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/141—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of two or more polyurethanes in the same layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/145—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face having a brush-like working surface
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a composite grinding leather for glass polishing, which comprises a grinding leather for glass polishing and at least one wet polyurethane coating. The invention also relates to a preparation method and application of the composite layer buffing for glass polishing. The brush made of the multi-layer buffing for glass polishing can realize the effects of thinning, fine polishing and sweeping mobile phone glass simultaneously, so that the three procedures of thinning, fine polishing and sweeping for glass polishing in the prior art are combined into one procedure.
Description
Technical Field
The invention relates to a multi-layer buffing for glass polishing and preparation and application thereof.
Background
The glass polishing comprises the working procedures of thinning, fine polishing, sweeping and the like. In the prior art, the consumables used in the three processes are different. The main consumable material used in the thinning procedure is pure polyurethane polishing leather with foam holes, the main consumable material used in the fine polishing procedure is polyurethane polishing leather containing polishing base cloth, and the main consumable material used in the sweeping procedure is black damping cloth or a carpet.
In the prior art, three processes of thinning, fine polishing and sweeping need to use different consumables and are operated in stages. This not only process is loaded down with trivial details, and efficiency is lower, and the consumptive material cost is also higher moreover.
Disclosure of Invention
The invention provides a composite polishing skin for glass polishing, aiming at the technical defects and shortcomings in the prior art, and the composite polishing skin can at least partially solve the technical defects and shortcomings in the prior art, such as complex glass polishing process, low efficiency, high material cost and the like.
The brush made of the multi-layer buffing for glass polishing (for example, refer to the brush disclosed in the patent of 201920821079.2, the utility model) can realize the effect of simultaneously thinning, fine polishing and sweeping the mobile phone glass, thereby combining the three procedures of thinning, fine polishing and sweeping the glass polishing in the prior art into one procedure.
As one aspect of the present invention, there is provided a polishing pad for glass polishing, which is prepared from the following formulation:
DMF: 8 parts of a mixture;
polyurethane with modulus 60: 3 parts of a mixture;
modulus 240 polyurethane: 1 part.
As one aspect of the present invention, there is provided a method for producing a polishing pad for polishing upper glass, comprising the steps of:
1) fully soaking the polishing base cloth in polyurethane;
2) the semi-finished product enters a coagulating tank, so that the solvent DMF in the semi-finished product is reduced, and the polyurethane is coagulated;
3) washing with water to eliminate excessive DMF solvent;
4) and (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
As one aspect of the present invention, it relates to a double-layered polishing skin for glass polishing, comprising a glass polishing skin and at least one wet-process polyurethane coating layer.
In one embodiment, the glass polishing skin may include a glass polishing skin and wet polyurethane coatings on both sides of the glass polishing skin.
In one embodiment, the glass polishing skin may include a glass polishing skin and a wet polyurethane coating and a dry polyurethane coating on both sides of the glass polishing skin, respectively.
As one aspect of the invention, the invention relates to a method for preparing the composite buff for polishing glass, which comprises coating or compounding a wet polyurethane coating on one surface of the buff layer.
In one embodiment, the method further comprises applying or laminating a wet polyurethane coating to the other surface of the wear layer.
In one embodiment, the method further comprises coating or compounding a dry polyurethane coating on the other surface of the buffed layer.
In one embodiment, the method comprises the steps of:
1) placing the polishing base cloth on a cloth placing table, and fully soaking polyurethane;
2) the polishing base cloth fully impregnated with polyurethane enters the lower part of the precise coating knife, a gap between the precise coating knife and the polishing base cloth fully impregnated with polyurethane is controlled, the polishing base cloth fully impregnated with polyurethane moves forward at a constant speed, and a polyurethane coating is formed on one surface of the polishing base cloth fully impregnated with polyurethane;
3) entering a coagulating tank to reduce the DMF solvent in the semi-finished product and coagulate the polyurethane;
4) entering a water washing tank to wash off the redundant solvent;
5) and (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
In one embodiment, the method comprises the steps of:
1) placing the release paper on a cloth placing table;
2) enabling the release paper to enter the lower part of the precise coating knife, controlling a gap between the precise coating knife and the release paper, and enabling the release paper to move forwards at a constant speed, so that wet polyurethane forms a wet polyurethane coating on one surface of the release paper after passing through the precise coating knife;
3) the semi-finished product enters a coagulating tank, and a large amount of DMF in the semi-finished product enters water in the coagulating tank because the DMF and water are mixed and dissolved in any proportion, so that the DMF in the semi-finished product is reduced, and the polyurethane is coagulated;
4) entering a water washing tank to wash off the redundant solvent;
5) entering a drying oven at the temperature of 110-;
6) separating the release paper from the wet polyurethane coating film to obtain a wet polyurethane coating film;
7) and compounding the common ground leather and the prepared wet polyurethane coating into a whole by using a compounding machine.
In one embodiment, the method comprises the steps of:
1) placing the release paper on a cloth placing table;
2) enabling the release paper to enter the lower part of the precise coating knife, controlling a gap between the precise coating knife and the release paper, enabling the release paper to advance at a constant speed, and forming a polyurethane coating on one surface of the release paper;
3) the polyurethane coating enters an oven at the temperature of 110-150 ℃ under the drive of release paper, the operation time in the oven is 15-20 minutes, so that the solvent in the semi-finished product is completely evaporated, and the polyurethane is solidified to form a film;
4) stripping the release paper and the dry polyurethane coating;
5) compounding a common buff or the multi-layer buff for polishing glass with a wet-process polyurethane coating according to claim 3 with the prepared dry-process polyurethane coating into a whole by using a compounding machine.
As a further aspect of the invention, the invention relates to the application of the compound polishing skin for polishing glass in the preparation of a brush for polishing glass.
As a further aspect of the present invention, it relates to a brush for glass polishing, which is made of the above-mentioned double-layered skin for glass polishing.
As still another aspect of the present invention, it relates to a glass polishing machine using the above brush for glass polishing.
As still another aspect of the present invention, it relates to a glass polishing method using the brush for glass polishing.
Detailed Description
The reagents used in the present invention are all conventional commercial reagents, for example, DMF used in the present invention is commercially available from Wash Heisl. Unless otherwise specified, the parts in the present invention are parts by weight.
Example 1: selection of common dermabrasion
The inventors selected the best formulation by setting different formulations.
Formula 1:
solvent DMF: 10 parts of (A);
polyurethane with modulus 60: 1 part;
modulus 240 polyurethane: 1 part.
The preparation process can be carried out by a person skilled in the art according to the prior art, and can be, for example, the following process:
1, a preparation process of polishing base cloth: the polishing base cloth is produced by a manufacturing process of the needle-punched non-woven cloth.
2, preparing the common buffing:
1) and fully impregnating the polishing base cloth with polyurethane.
2) And (3) putting the semi-finished product into a coagulating tank, wherein a large amount of solvent DMF in the semi-finished product enters water in the coagulating tank because the solvent DMF and water are miscible in any proportion, so that the solvent DMF in the semi-finished product is reduced, and the polyurethane is coagulated.
3) And (5) entering a water washing tank to wash off excessive solvent DMF.
4) And (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
5) And rolling to obtain the common mill leather.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed surface, and the Shore hardness is 50 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.8g, abrasion index: 1.6.
and (2) formula:
solvent DMF: 9 parts of (1);
polyurethane with modulus 60: 2 parts of (1);
modulus 240 polyurethane: 1 part.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 55 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.7g, abrasion index: 1.4.
and (3) formula:
solvent DMF: 9 parts of (1);
polyurethane with modulus 60: 1 part;
modulus 240 polyurethane: 2 parts of (1);
the preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed surface, and the Shore hardness is 60 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.6g, abrasion index: 1.2.
and (4) formula:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 4 parts of a mixture;
modulus 240 polyurethane: 0 part of (A).
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed surface is 65 Shore C hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.5g, abrasion index: 1.0.
and (5) formula:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 3 parts of a mixture;
modulus 240 polyurethane: 1 part.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is adopted to measure the Shore hardness of the prepared common buffed surface, and the Shore hardness is 68 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.4g, abrasion index: 0.8.
and (6) formula:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 2 parts of (1);
modulus 240 polyurethane: and 2 parts.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 75 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.41g, abrasion index: 0.82.
and (3) formula 7:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 1 part;
modulus 240 polyurethane: and 3 parts.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 80 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.43g, abrasion index: 0.86.
and (4) formula 8:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 0 part of (C);
modulus 240 polyurethane: 4 parts.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 83 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.47g, abrasion index: 0.94.
formula 9:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 2 parts of (1);
modulus 95 polyurethane: and 2 parts.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 73 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.37g, abrasion index: 0.74.
formula 10:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 3 parts of a mixture;
1 part of polyurethane with the modulus of 95.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed surface is 65 Shore C hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.47g, abrasion index: 0.94.
formula 11:
solvent DMF: 8 parts of a mixture;
polyurethane with modulus 60: 1 part;
modulus 95 polyurethane: and 3 parts.
The preparation process comprises the following steps: the same as formula 1.
The Shore hardness measurement method (meeting national standards GB/T531, GB/T2489 and GB2411) is used for measuring the Shore hardness of the prepared common buffed skin, and the Shore hardness is 75 Shore C type hardness.
The abrasion loss of the prepared common buffing is measured by using a TABER type abrasion tester (meeting national standard GB/T5478-2008, GB/T1768-2006) according to the method: 0.45g, abrasion index: 0.9.
from the above experiments, it can be seen that the hardness and abrasion index of the products prepared according to formulas 5 and 9 are most suitable for polishing mobile phone glass. Since the brush is required to have a certain cutting force for polishing the 3D mobile phone glass firstly, the cutting force is not too large, and the 3D mobile phone glass surface is scratched due to too large cutting force, the Shore hardness C type hardness of the common buffing is required to be 68-75 degrees. Therefore, the composite hardness was formula 5, formula 6, formula 9, and formula 11. Second, it requires a long brush polishing time, and formulations 5 and 9, which are the best wear indices according to the TABER type abrasion tester, are known.
To further increase product advantages such as smoothness, resilience and longevity, the inventors added at least one polyurethane coating to the prepared conventional suede based on formulations 5 and 9.
The Shore hardness C type hardness of the buff is between 68 and 75 degrees. Therefore, the composite hardness was formula 5, formula 6, formula 9, and formula 11. Second, it requires a long brush polishing time, and formulations 5 and 9, which are the best wear indices according to the TABER type abrasion tester, are known.
To further increase product advantages such as smoothness, resilience and longevity, the inventors added at least one polyurethane coating to the prepared conventional suede based on formulations 5 and 9.
Example 2: preparation of single-sided wet-process coating composite grinding leather for glass polishing
1) And (3) placing the polishing base cloth on a cloth placing table, and fully soaking the polishing base cloth with polyurethane.
2) And the polishing base cloth fully impregnated with the polyurethane enters the lower part of the precise coating knife, a gap between the precise coating knife and the polishing base cloth fully impregnated with the polyurethane is controlled, the polishing base cloth fully impregnated with the polyurethane moves forward at a constant speed, and a polyurethane coating is formed on one surface of the polishing base cloth fully impregnated with the polyurethane. One skilled in the art can accomplish this step by any means known in the art that can achieve a coating.
3) And (3) the mixture enters a coagulating tank, and a large amount of DMF in the semi-finished product enters water in the coagulating tank because the DMF and water are mixed and dissolved in any proportion, so that the DMF in the semi-finished product is reduced, and the polyurethane is coagulated.
4) And (4) entering a rinsing bath to wash off the excessive solvent.
5) And (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product. One skilled in the art can use any means known in the art to evaporate water to accomplish this step.
6) And rolling to obtain a finished product of the mill leather with a polyurethane coating on one side. The resulting coating is referred to herein as a wet-process polyurethane coating.
The following are known through experimental data:
the working hours of making the common ground leather into the brush prepared by the formula 5 are as follows: for 100 hours, the removal amount of the 3D mobile phone glass after 45 minutes of polishing [ the reduction amount of the thickness of the mobile phone glass ] is as follows: 10 um.
The working hours of using the brush made of the common buffing prepared according to the formula 9 are 120 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 13 um.
The use time of a brush made of a product prepared by using the common buffing prepared by the formula 5 and provided with the wet coating on one side is 150 +/-1 hours, and the removal amount of 3D mobile phone glass is unchanged after 45 minutes of polishing.
The use time of making a brush with a product prepared by using the common buffing prepared according to the formula 9 and having a wet coating on one side is 160 +/-1 hours, and the removal amount of 3D mobile phone glass is unchanged after 45 minutes of polishing.
Example 3: a wet coating was prepared using release paper.
1) The release paper is placed on a cloth placing table.
2) And (3) enabling the release paper to enter the lower part of the precise coating knife, controlling the gap between the precise coating knife and the release paper, and enabling the release paper to move forwards at a constant speed, so that wet polyurethane forms a wet polyurethane coating on one surface of the release paper after passing through the precise coating knife.
3) And (3) putting the semi-finished product into a coagulating tank, wherein a large amount of solvent DMF in the semi-finished product enters water in the coagulating tank because the solvent DMF and water are miscible in any proportion, so that the solvent DMF in the semi-finished product is reduced, and the polyurethane is coagulated.
4) And (4) entering a rinsing bath to wash off the excessive solvent.
5) And (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
6) And (5) rolling to obtain a release paper product with one surface provided with the wet-process polyurethane coating.
7) Separating the release paper from the wet-process polyurethane coating film to obtain the wet-process polyurethane coating film.
Example 4: preparation of dry coatings using release paper
1) The release paper is placed on a cloth placing table.
2) And (3) enabling the release paper to enter the lower part of the precise coating knife, controlling a gap between the precise coating knife and the release paper, enabling the release paper to advance at a constant speed, and forming a polyurethane coating on one surface of the release paper.
3) The polyurethane coating enters an oven at the temperature of 110-150 ℃ under the drive of release paper, the operation time in the oven is 15-20 minutes, so that the solvent in the semi-finished product is completely evaporated, and the polyurethane is solidified to form a film.
4) And stripping the release paper and the polyurethane coating. And rolling to obtain the polyurethane coating. The resulting coating is referred to herein as a dry-process polyurethane coating.
Example 5: preparation of single-side dry method coating glass polishing multi-layer buffing
The common buff was compounded with the dry polyurethane coating prepared in example 4 using a compounding machine, for example, hot melt adhesive, to obtain a double-layered buff for single-sided dry coated glass polishing.
The following are known through experimental data:
the working hours of making the common ground leather into the brush prepared by the formula 5 are as follows: for 100 hours, the removal amount of the 3D mobile phone glass after 45 minutes of polishing is as follows: 10 um.
The working hours of using the common brush prepared by the formula 9 and made by grinding are 120 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 13 um.
The use time of making a brush with a product of the single-sided dry coating prepared by using the common buffing prepared by the formula 5 is unchanged, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 19 +/-1 um.
The working hours of making a brush with a product of a single-sided dry coating prepared by using the common buffing prepared by the formula 9 are unchanged, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 22 + -1 um.
Example 6: double-sided wet-process coating glass polishing composite layer buffing
And (3) compounding the wet coating prepared by using the release paper in the example 3 to the other side of the composite polishing leather for the single-sided wet coating glass prepared in the example 2 by using a compounding machine, for example, using hot melt adhesive to obtain the composite polishing leather for the double-sided wet coating glass.
The following are known through experimental data:
the working hours of making the common ground leather into the brush prepared by the formula 5 are as follows: for 100 hours, the removal amount of the 3D mobile phone glass after 45 minutes of polishing [ the reduction amount of the thickness of the mobile phone glass ] is as follows: 10 um.
The working hours of using the brush made of the common buffing prepared according to the formula 9 are 120 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 13 um.
The use working hours of making a brush by using a product with a double-sided wet coating prepared by the common buffing prepared by the formula 5 are 180 +/-1 hours, and the removal amount of 3D mobile phone glass is unchanged after 45 minutes of polishing.
The use working hours of making a brush by using a product with a double-sided wet coating prepared by the common buffing prepared by the formula 9 are 190 +/-1 hours, and the removal amount of 3D mobile phone glass is unchanged after 45 minutes of polishing.
Example 7: double-sided dry method coating glass polishing is with compound layer buffing
The dry coating prepared by using the release paper in the example 4 is compounded to the other side of the multi-layer polishing leather for the single-sided dry coating glass prepared in the example 5 by using a compounding machine, for example, hot melt adhesive is used, and the multi-layer polishing leather for the double-sided dry coating glass is obtained.
The following are known through experimental data:
the working hours of making the common ground leather into the brush prepared by the formula 5 are as follows: for 100 hours, the removal amount of the 3D mobile phone glass after 45 minutes of polishing [ the reduction amount of the thickness of the mobile phone glass ] is as follows: 10 um.
The working hours of using the brush made of the common buffing prepared according to the formula 9 are 120 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 13 um.
The working hours of making a brush with a product of the double-sided dry coating prepared by using the common buffing prepared by the formula 5 are unchanged, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 40 +/-1 um.
The use working hours of making a brush by using a product with a double-sided dry coating prepared by using the common buffing prepared by the formula 9 are unchanged, and the removal amount of 3D mobile phone glass after polishing for 45 minutes is as follows: 46 +/-1 um.
Example 8: double-layer buffing for polishing glass with one wet coating and one dry coating
The dry coating prepared by using the release paper in the example 4 is compounded to the other side of the multi-layer polishing leather for single-sided wet coating glass prepared in the example 2 by using a compounding machine, for example, hot melt adhesive is used, and the multi-layer polishing leather for one-sided wet coating and one-sided dry coating glass polishing is obtained.
Or, the wet coating prepared by using the release paper in example 3 and the dry coating prepared by using the release paper in example 4 are respectively compounded on the two sides of the common grinding leather by using a compounding machine, for example, hot melt adhesive is used, and the composite grinding leather for polishing the glass with one side coated by the wet coating and the other side coated by the dry coating is obtained.
The following are known through experimental data:
the working hours of making the common ground leather into the brush prepared by the formula 5 are as follows: for 100 hours, the removal amount of the 3D mobile phone glass after 45 minutes of polishing is as follows: 10 um.
The working hours of using the brush made of the common buffing prepared according to the formula 9 are 120 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 13 um.
The use working hours of making a brush by using a product prepared by the common buffing prepared by the formula 5 and having one wet coating and one dry coating are 150 +/-1 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 21 +/-1 um.
The use working hours of making a brush by using a product prepared by using the common buffing prepared by the formula 9 and having one wet coating and one dry coating are 160 +/-1 hours, and the removal amount of 3D mobile phone glass after 45 minutes of polishing is as follows: 28 +/-1 um.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (16)
1. The grinding leather for glass polishing is characterized by being prepared from the following formula:
DMF: 8 parts of a mixture;
polyurethane with modulus 60: 3 parts of a mixture;
modulus 240 polyurethane: 1 part.
2. A method for producing the polishing skin for glass according to claim 1, characterized by comprising the steps of:
1) fully soaking the polishing base cloth in polyurethane;
2) the semi-finished product enters a coagulating tank, so that the solvent DMF in the semi-finished product is reduced, and the polyurethane is coagulated;
3) washing with water to eliminate excessive DMF solvent;
4) and (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
3. The composite grinding skin for polishing the glass is characterized by comprising a grinding skin for polishing the glass and at least one wet polyurethane coating.
4. The double-layered polishing skin for glass polishing according to claim 3, wherein said double-layered polishing skin for glass polishing comprises a skin for glass polishing and a wet-process polyurethane coating layer on both sides of said skin for glass polishing.
5. The double-layered polishing pad for glass polishing according to claim 3, wherein said double-layered polishing pad for glass polishing comprises a polishing pad for glass polishing and a wet polyurethane coating and a dry polyurethane coating respectively provided on both sides of said polishing pad for glass polishing.
6. The double-layered polishing pad for glass polishing according to any one of claims 3 to 5, wherein the polishing pad for glass polishing is the polishing pad for glass polishing according to claim 1.
7. A method for preparing the multi-layer frosting for polishing glass as described in any of claims 3 to 6, wherein said method comprises coating or laminating a wet polyurethane coating on one surface of the frosted layer.
8. The method of claim 7, further comprising applying or laminating a wet polyurethane coating to the other surface of the wear layer.
9. The method of claim 7, further comprising applying or laminating a dry polyurethane coating to the other surface of the wear layer.
10. The method as claimed in any one of claims 7 to 9, characterized in that it comprises the following steps:
1) placing the polishing base cloth on a cloth placing table, and fully soaking polyurethane;
2) the polishing base cloth fully impregnated with polyurethane enters the lower part of the precise coating knife, a gap between the precise coating knife and the polishing base cloth fully impregnated with polyurethane is controlled, the polishing base cloth fully impregnated with polyurethane moves forward at a constant speed, and a polyurethane coating is formed on one surface of the polishing base cloth fully impregnated with polyurethane;
3) entering a coagulating tank to reduce the DMF solvent in the semi-finished product and coagulate the polyurethane;
4) entering a water washing tank to wash off the redundant solvent;
5) and (5) entering an oven at the temperature of 110-150 ℃, and operating in the oven for 15-20 minutes to completely evaporate the moisture in the semi-finished product.
11. The method as claimed in any one of claims 7 to 9, characterized in that it comprises the following steps:
1) placing the release paper on a cloth placing table;
2) enabling the release paper to enter the lower part of the precise coating knife, controlling a gap between the precise coating knife and the release paper, and enabling the release paper to move forwards at a constant speed, so that wet polyurethane forms a wet polyurethane coating on one surface of the release paper after passing through the precise coating knife;
3) the semi-finished product enters a coagulating tank, and a large amount of DMF in the semi-finished product enters water in the coagulating tank because the DMF and water are mixed and dissolved in any proportion, so that the DMF in the semi-finished product is reduced, and the polyurethane is coagulated;
4) entering a water washing tank to wash off the redundant solvent;
5) entering a drying oven at the temperature of 110-;
6) separating the release paper from the wet polyurethane coating film to obtain a wet polyurethane coating film;
7) and compounding the common ground leather and the prepared wet polyurethane coating into a whole by using a compounding machine.
12. The method as claimed in any one of claims 7 to 9, characterized in that it comprises the following steps:
1) placing the release paper on a cloth placing table;
2) enabling the release paper to enter the lower part of the precise coating knife, controlling a gap between the precise coating knife and the release paper, enabling the release paper to advance at a constant speed, and forming a polyurethane coating on one surface of the release paper;
3) the polyurethane coating enters an oven at the temperature of 110-150 ℃ under the drive of release paper, the operation time in the oven is 15-20 minutes, so that the solvent in the semi-finished product is completely evaporated, and the polyurethane is solidified to form a film;
4) stripping the release paper and the dry polyurethane coating;
5) compounding a common buff or the multi-layer buff for polishing glass with a wet-process polyurethane coating according to claim 3 with the prepared dry-process polyurethane coating into a whole by using a compounding machine.
13. Use of the double-layered polishing pad for glass polishing according to any one of claims 3 to 6 for the production of a brush for glass polishing.
14. A brush for polishing glass, characterized in that the brush is made of the glass polishing skin according to any one of claims 3 to 6.
15. A glass polishing machine characterized by using the brush for glass polishing according to claim 14.
16. A glass polishing method characterized by using the brush for glass polishing according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011092498.0A CN112281507A (en) | 2020-10-13 | 2020-10-13 | Multi-layer buffing for glass polishing and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011092498.0A CN112281507A (en) | 2020-10-13 | 2020-10-13 | Multi-layer buffing for glass polishing and preparation and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112281507A true CN112281507A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011092498.0A Withdrawn CN112281507A (en) | 2020-10-13 | 2020-10-13 | Multi-layer buffing for glass polishing and preparation and application thereof |
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| CN (1) | CN112281507A (en) |
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| CN115233465A (en) * | 2021-04-25 | 2022-10-25 | 苏州三鼎纺织科技有限公司 | Composite grinding skin containing wear-resistant auxiliary agent for polishing optical glass and preparation method thereof |
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- 2020-10-13 CN CN202011092498.0A patent/CN112281507A/en not_active Withdrawn
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| CN115233464A (en) * | 2021-04-25 | 2022-10-25 | 苏州三鼎纺织科技有限公司 | Auxiliary-containing multi-layer polishing skin for optical glass polishing and preparation method thereof |
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| CN115233466B (en) * | 2021-04-25 | 2024-01-26 | 苏州三鼎纺织科技有限公司 | Multi-layer buffing for polishing optical glass and preparation method thereof |
| CN115233467B (en) * | 2021-04-25 | 2024-01-26 | 苏州三鼎纺织科技有限公司 | Multi-layer buffing for polishing optical glass and preparation method thereof |
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| CN115233462B (en) * | 2021-04-25 | 2024-07-09 | 苏州三鼎纺织科技有限公司 | Multi-layer grinding sheet containing auxiliary agent for polishing optical glass and preparation method thereof |
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Application publication date: 20210129 |