EP1967621A2 - Schleifunterlage und Schleifleinen - Google Patents

Schleifunterlage und Schleifleinen Download PDF

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Publication number
EP1967621A2
EP1967621A2 EP20080250778 EP08250778A EP1967621A2 EP 1967621 A2 EP1967621 A2 EP 1967621A2 EP 20080250778 EP20080250778 EP 20080250778 EP 08250778 A EP08250778 A EP 08250778A EP 1967621 A2 EP1967621 A2 EP 1967621A2
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EP
European Patent Office
Prior art keywords
weave layer
weave
abrasive
layer
yarn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20080250778
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English (en)
French (fr)
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EP1967621A3 (de
Inventor
Sang-Soo Jung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zoomtextileco Ltd
Original Assignee
Zoomtextileco Ltd
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Filing date
Publication date
Application filed by Zoomtextileco Ltd filed Critical Zoomtextileco Ltd
Publication of EP1967621A2 publication Critical patent/EP1967621A2/de
Publication of EP1967621A3 publication Critical patent/EP1967621A3/de
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0017—Woven household fabrics
    • D03D1/0023—Mobs or wipes
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/43—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/06—Jute
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24—Viscose
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres
    • D10B2211/02—Wool
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres
    • D10B2211/04—Silk
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3472—Woven fabric including an additional woven fabric layer

Definitions

  • the present invention relates to an abrasive backing and abrasive cloth and more particularly, to an abrasive backing which exhibits high tensile strength, low elongation and excellent smoothness, and an abrasive cloth including the abrasive backing.
  • Abrasive cloth is a cloth or paper attached with an abrasive material to abrade or remove rust of a metal product.
  • An abrasive article usually includes an abrasive backing, an adhering agent and an abrasive material or the like.
  • the abrasive backing is fabric, it may be classified by cotton, chemical fiber, fiber blend, non-woven fabric, metal fiber or the like depending on its chemical composition. If necessary, such an abrasive backing may be used as it is or as a combination of two or more components.
  • an abrasive backing is woven to have a rough surface, so that an abrasive material can be attached firmly according to the grain size of an abrasive material considering adhesive strength and smoothness.
  • An abrasive backing has conventionally been woven with a thread of an appropriate thickness according to the grain size of an abrasive material. Once the thickness of thread is selected, both the front side and the back side of the abrasive material have the same thread thickness which may result in an even surface, so that it may be difficult to coat with an abrasive material having a different grain size.
  • each different abrasive backing has to be woven separately by controlling a thickness of thread to have a variety of abrasive states, which may cause a burden of overstocks and poor adhesion between abrasive backings even if different abrasive backings are adhered doubly. This may further reduce abrasive efficiency. Therefore, it is highly and continuously demanded not only to improve basic properties, adhesion, and grinding force but also to reduce the burden of overstocks.
  • woven sheets used as an abrasive backing are woven to have more warps than wefts, which satisfy properties such as elongation, tensile strength, adhesion, and smoothness, etc., required for an abrasive cloth.
  • An abrasive cloth of more than 2000mm width is recently in need for the purpose of automating the manufacturing facility for an object to be ground, and improving the productivity.
  • the present invention is intended, at least in its preferred embodiments, to resolve the problems associated with the conventional technology and to provide an abrasive backing with double weave design which not only improves physical properties and adhesion but also has low elongation and high tensile strength in the weft direction
  • the present invention is also intended, at least in its preferred embodiments, to provide an abrasive cloth including the abrasive backing.
  • the present invention provides an abrasive backing including an upper weave layer and a lower weave layer which are formed with warps and wefts, and a binding yarn which connects the upper weave layer and the lower weave layer, in which a thickness of weft yarns of the upper weave layer is different from that of the lower weave layer to weave the abrasive backing.
  • the upper weave layer and the lower weave layer may be independently woven by a yarn chosen from cotton, wool, silk, hemp, synthetic fiber and its mixed yarn. When hemp among natural fabrics is used, it may be jute.
  • the upper weave layer may be woven by cotton and the lower weave layer by polyester.
  • At least one of warp and weft yarns forming the upper weave layer and the lower weave layer may include MSV yarns to weave.
  • the upper weave layer and the lower weave layer may be independently woven into a plain weave, a twill weave, a satin weave or variations thereof and may be woven into same or different weave.
  • the abrasive backing may be manufactured by a method including: arranging warps of the upper weave layer and warps of the lower weave layer to cross each other; fixing the heddles of the lower weave layer when the wefts are woven into the upper weave layer, and alternatively, fixing the heddles of the upper weave layer when the wefts are woven into the lower weave layer, so that the upper weave layer and the lower weave layer are allowed to be woven simultaneously; and connecting the upper weave layer and the lower weave layer with a binding yarn not to interrupt the composition of the upper weave layer and the lower weave layer and not to overlap cross points of the upper weave layer and the lower weave layer while the binding yarn passes in the weft direction or in the warp direction.
  • the present invention further provides an abrasive cloth including the abrasive backing described above, an abrasive material coated to the abrasive backing, and an adhering agent adhering the abrasive backing and the abrasive material.
  • the abrasive material may permeate into each of the upper weave and the lower weave and into the gap between them.
  • An abrasive backing of the present invention includes an upper weave layer and a lower weave layer, which are formed with warps and wefts, and a binding yarn which connects the upper weave layer and the lower weave layer, and is formed in a double weave by using a different thickness of a weft yarn of the upper weave layer from that of the lower weave layer.
  • 'double weave' is referred to as a single abrasive backing manufactured by combining two weave layers.
  • the two weave layers with the upper and lower weave layers may be same weave, or different weave.
  • binding yarn Positions where the binding yarn connects the upper weave layer and the lower weave layer are critical and should not interrupt the composition of each weave layer. While passing in the warp direction or the weft direction of an abrasive backing, the binding yarn can connect the upper weave layer and the lower weave layer Each crossing point of the upper weave layer and each crossing point of the lower weave layer should not overlap each other by the binding yarn.
  • a double weave connected by the binding yarn may have much space between the upper weave layer and the lower weave layer, so that an adhering agent can easily permeate between two weave layers to improve the adhesion.
  • An abrasive backing of the present invention is woven by using the weft of the upper weave layer having a different thickness from that of the lower weave layer.
  • a double weave is woven by using the binding yarn having identical material, identical thickness to connect the upper weave layer and the low weave layer, there is no need to divide the front side and the back side but it may be impossible to embody various abrasive states with one abrasive material.
  • an abrasive material having a small grain size and an abrasive material having a thicker grain size may be adhered to each side of an abrasive backing, so that it embodies two functions with one abrasive cloth.
  • the upper weave layer and the lower weave layer may have an uneven surface having different details and may be coated with abrasive materials having different grain sizes.
  • the surface of the upper weave layer and the surface of the lower weave layer can be coated with abrasive materials having different sizes by using one abrasive backing. This one abrasive cloth may perform the same functions which two conventional abrasive cloths perform, so that it improves abrasive efficiency and reduces the burden of overstocks.
  • a kind of yarn that constitutes the upper weave layer or the lower weave layer of the double weave has no limitation.
  • a fiber that constitutes the yarn may include cotton, wool, silk, hemp, synthetic fiber or synthetic yarn of synthetic fiber and these yarns, blended yarn, and conjugated yarn, etc. but it is not limited to these fibers.
  • hemp among natural fibers it may be jute.
  • the upper weave layer may be woven by cotton and the lower weave layer by polyester.
  • warp yarns that constitute the upper weave layer and the lower weave layer may be one chosen from cotton, polyester and blended yarn of cotton and polyester.
  • a weft yarn that constitutes the upper weave layer and a weft yarn that constitutes the lower weave layer may be one independently chosen from cotton, blended yarn of cotton and polyester, wool, jute, silk, hemp, rayon, synthetic fiber, polyester, rubber yarn and covering yarn.
  • the upper weave layer and the lower weave layer may be woven with different yarns.
  • the kind or color of yarns which constitute the upper weave layer and the lower weave layer may be identical or different. It is preferable that yarns that constitute the upper weave and yarns that constitute the lower weave be identical.
  • a yarn used for the double weave may be a filament yarn, or a split yarn, etc. and there is also no limitation in the method of spinning.
  • At least one of wefts and warps of the upper weave layer and the lower weave layer may include MVS(Murata Vortex Spinning) yarn to weave.
  • the MVS yarn has a different spun method from those of polyester yarns or MJS yarns.
  • the MVS yarn has somewhat different physical properties from polyester spun yarns, ring yarns and MJS yarns manufactured by different methods, but it still gives the same properties to general fabrics.
  • the MVS yarn is used to manufacture abrasive backings and abrasive cloths, it provides much better smoothness and adhesion compared to polyester yarns or MJS yarns, so that it improves significantly the abrasive efficiency to remove rust of metal products compared to the conventional abrasive backing.
  • a combination yarn of MVS yarn and MJS yarn or a combination yarn of MVS yarn and yarn produced by different methods such as ring yarn, OE yarn, etc may be used to manufacture abrasive backings of the double weave.
  • the upper weave layer and the lower weave layer are independently woven in one weave chosen from plain weave, twill weave, satin weave and its variations and thus, the upper weave layer and the lower weave layer may be woven in the same or different weaves.
  • Plain weave is the most basic of the weaves, in which each warp yarn crosses the weft yarn by going over one, then under the next, and so on. Plain weave is generally designated as 1/1.
  • the strength of the plain-weave fabrics depends on thickness of the yarn and density of the weave.
  • Twill weave is made by passing the weft yarns over one warp yarn and then under two or more warp yarns in a regular repeated manner.
  • the twill weave has less formation points than the plain weave, so that it is more flexible and softer, and is designated as 1/2, 1/3, and 1/4, etc.
  • Satin weave is also called as dice satin, in which four or more weft yarns float over a warp yarn or vice versa, four or more warp yarns float over a single weft yarn, and thus only one of the warp or the weft is brought to the surface.
  • satin weave fabrics there is no formation point of the warp and the weft so that it has few bending, and is designated as 1/4 satin.
  • three foundation weaves such as basket weave as a variation of plain weave construction, pointed twill weave or broken twill weave as a variation of twill weave construction, and satin check weave as a variation of satin weave construction, etc.
  • basket weave as a variation of plain weave construction
  • pointed twill weave or broken twill weave as a variation of twill weave construction
  • satin check weave as a variation of satin weave construction
  • a double weave abrasive backing may be manufactured by a method including :
  • Fig. 1 is a double weave of an abrasive backing according to an embodiment of the present invention.
  • Both the upper weave layer and the lower weave layer of the abrasive backing are woven in a 1/4 twill weave.
  • the upper weave layer is constituted with warps 12, 14, 16, 18, 20 and wefts b, d, f, h, j and the lower weave layer with warps 11, 13, 15, 17, 19 and wefts a, c, e, g, i.
  • each of the upper weave layer and the lower weave layer is woven in a twill weave by interlacing one warp yarn and 4 weft yarns and is separately woven.
  • the upper twill weave layer and the lower twill weave layer may be simultaneously woven by forming the upper weave layer and then forming the lower weave layer.
  • the abrasive backing in the double weave may be obtained, of which the upper weave layer and the lower weave layer are separately woven but simultaneously formed, by arranging warp yarns of the upper weave layer and warp yarns of the lower weave layer, interlacing a weft yarn with the warp yarns of the upper weave layer, and then interlacing the weft yarn with the warp yarns of the lower weave layer.
  • the upper weave layer and the lower weave layer each may be independently woven with weft yarns having different thickness by using 2 or 4 weft feeders.
  • Fig. 2 is a sectional view of the abrasive backing according to an embodiment of the invention as shown in Fig. 1 .
  • Fig. 2 is an A-A' sectional view of Fig. 1 .
  • the upper weave layer and the lower weave layer each is woven in a 1/4 twill weave and independently woven to constitute the abrasive backing.
  • a binding yarn 70 connects these two layers.
  • the binding yarn 70 passes through, a crossing point of a specific warp 12 and a specific weft d of the upper weave layer and a crossing point of a specific warp 15 and a specific weft e of the lower weave layer, in the weft direction to connect the upper weave layer and the lower weave layer.
  • the crossing point 12-d where the specific warp 12 and the specific weft d of the upper weave layer are crossing over
  • the binding yarn 70 fills into the crossing point where the weft e crosses under the warp 15, the crossing point 15-e, where the specific warp 15 and the specific weft e of the lower weave layer are crossing each other, may not disrupt the structure of the lower weave layer.
  • any yarn as the binding yarn may be used with no limitation.
  • Any fiber that constitutes the yarn such as cotton, wool, silk, hemp, synthetic fabric or synthetic yarns of synthetic fabric and these yarns, blended yarn, and conjugated yarn, etc. may be used with no limitation and filament yarns, or split yarns, etc. may be used and there is also no limitation in the method of spinning.
  • kinds and colors of the binding yarn may be identical or different from those of the weft constituting the upper or lower weave layer. It is however preferable that kinds and colors of the binding yarn be identical to those of the weft constituting the upper or the lower weave layer.
  • the upper weave layer and the lower weave layer have different rough surfaces each other since a thickness of the weft of the upper weave layer is different from that of the lower weave layer.
  • An abrasive material having a different grain size may be then coated to each surface of the abrasive backing. Since each surface of the abrasive backing is coated with an abrasive material having a different grain size, it can provide the same effect of 2 abrasive clothes with one which thus improves the abrasive efficiency.
  • the double weave abrasive backing has excellent physical properties significantly improved by 50 to 60% in density of the weft and the adhesion since an abrasive material or an adhering agent can easily permeate into the space between the upper weave layer and the lower weave layer, compared with a single weave one.
  • crossing points of the upper weave layer and the lower weave layer are less than those of general fabrics, controlling the elongation in the weft direction can be allowed with easy expanding not only in the warp direction but also in the weft direction when the abrasive backing is treated. Further, the abrasive backing of the present invention exhibits the same or better tensile strength.
  • An abrasive cloth of the present invention includes an abrasive backing, an abrasive material and an adhering agent.
  • An abrasive backing used in the abrasive cloth may be a double weave abrasive backing according to the present invention, described above. Because an abrasive material having a low elongation in the weft direction is required in order to manufacture weft direction sectional wide width belts, expansion and heat-setting is demanded. If the elongation of the weft direction which is consistent with the spinning direction of an abrasive belt is not lower than 3-7%, the abrasive belt may be lengthened or broken due to frictional heat and tension generated during use of the abrasive belt.
  • the abrasive backing of the invention may be easily expanded in the weft direction due to less crossing points. Therefore, tension is not provided in the warp direction but the double weave abrasive backing is expanded by 1 to 7% only in the weft direction in a tenter and then heat-set at 180 to 250 °C for 1 to 3 minutes. Via this heat treatment, an abrasive backing with fixed elongation in the weft direction may be obtained.
  • Examples of an abrasive material causing a grinding include aluminum oxide (Al 2 O 3 ), silicon carbide (Sic), zirconia alumina (Al 2 O 3_ Zr 2 O 3 ), ceramic aluminum oxide, silica, garnet, emery, and crocus, etc.
  • the abrasive cloth may further include a filler which is used to complement physical properties of the adhering agent and of which examples include calcium carbonate, clay, diatomite, etc.
  • the abrasive material may permeate into each of the upper weave layer and the lower weave layer as well as into the space between the upper weave layer and the lower weave layer.
  • An adhering agent to adhere the abrasive backing and the abrasive material may be thermosetting resins or thermoplastic resins, or glues, etc.
  • Fig. 3 is a flow chart illustrating a manufacturing method of an abrasive cloth according to an embodiment of the present invention.
  • a double weave abrasive backing is prepared in Step 100.
  • the double weave abrasive backing is expanded in the weft direction in a tenter and then heat-set in Step 110.
  • An abrasive material is permeated into the abrasive backing and is fixed and adhered to the abrasive backing with an adhering agent in Step 120.
  • As a method of coating the abrasive material gravity coating and electrodeposition, etc. may be used.
  • a size coating is performed to fix the abrasive material firmly on the abrasive backing in Step 130 and thermosetting is then performed for heat treatment of the abrasive cloth in Step 140.
  • Step 150 is humidifying step.
  • Step 160 is softening step.
  • Step 170 (MCM) step may be added as needed, where the mesh clogging is treated after the size coating process to prohibit sticking of grinding dust during the grinding process. Then the abrasive cloth is completed in Step 180 by processing the abrasive cloth.
  • a double weave abrasive backing woven in a plain weave for both the upper weave layer and the lower weave layer was prepared by employing PERING20S/2 as a warp yarn, PERING30S/1 as a weft yarn of the upper weave layer, PEOE10S/1 as a weft yarn of the lower weave layer and weft feeders.
  • the double weave abrasive backing manufactured is shown in Fig. 4 and Figs. 5 and 6 are 60 times enlarged SEM pictures of the upper weave layer and the lower weave layer, respectively.
  • the weft yarn of the upper weave layer of the double weave abrasive backing of the present invention is different from that of the lower weave layer. Accordingly, it is possible to manufacture an abrasive cloth having different surfaces by coating different abrasive materials since the roughness of the upper weave layer is different from that of the lower weave layer. This arrangement allows provision of two functions of an abrasive cloth.
  • a double weave abrasive backing woven in a 1/4 twill weave for both the upper weave layer and the lower weave layer was prepared by employing PERING20S/2 as a warp yarn, PERING30S/1 as a weft yarn of the upper weave layer, PEOE10S/1 as a weft yarn of the lower weave layer and weft feeders.
  • a single abrasive backing woven in a 1/4 twill weave was prepared by employing PERING20S/2 and PEOE10S/1. Physical properties of the prepared single abrasive backing are summarized in Table 2.
  • Table 1 Example 2 Comparison Example Density(in ⁇ in) PERING20S/2 ⁇ PERING30S/1(the upper layer), PERING20S/2 ⁇ PEOE10S/1(the lower layer) --------------------------------- (double weave) 90 ⁇ 82 to 84 (288.6 x 208 to 213 cm) PERING20S/2 ⁇ PEOE10S/1 --------------------------------------(single weave) 90 ⁇ 44 to 46 (288.6 x 112 to 117 cm) warp tensile strength(kgf/in) 226 (87300 kg/s 2 ) 226 (87300 kg/s 2 ) weft tensile strength(kgf/in) 105 (40500 kg/s 2
  • a double weave abrasive backing was prepared as in Example 2, except using MVS yarns instead of ring spun yarns or OE yarns. Physical properties of the prepared abrasive backing were determined as in Example 2 and are summarized in Table 2.
  • Table 2 Example 3 Comparison Example Density(in ⁇ in) PEMVS20S/2 ⁇ PEMVS30S/1(upper layer), PEMVS20S/2 ⁇ PEMVS10S/1 (lower layer) ------------------------------ (double weave) 93 ⁇ 80 (236 x 203 cm) PERING20S/2 ⁇ PEOE10S/1 ------------------------------------------------------(single weave) 93 ⁇ 44 (236 x 112 cm) Warp tensile strength(kgf/in) 224 (86500 kg/s 2 ) 226 (87300 kg/s 2 ) Weft tensile strength(kgf/in) 102 (39400 kg/s 2 ) 68 (
  • density of the weft of the double weave abrasive backing of the present invention is improved by more than 60%, compared with that of the conventional abrasive backing.
  • the double weave abrasive backing woven with MVS yarns shows the most improved density of the weft.
  • the physical properties of the abrasive backing are significantly improved and allow excellent textile performance.
  • the double weave abrasive backing exhibits high weft tensile strength, low elongation at weft tensile strength 100kgf/in (38600 kg/s 2 ), and high smoothness.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Woven Fabrics (AREA)
EP20080250778 2007-03-09 2008-03-07 Schleifunterlage und Schleifleinen Withdrawn EP1967621A3 (de)

Applications Claiming Priority (2)

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KR20070003963 2007-03-09
KR1020070052908A KR100788295B1 (ko) 2007-03-09 2007-05-30 연마기재 및 연마포

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EP3418001A4 (de) * 2016-07-25 2019-07-24 Jiangsu Fengmang Compound Material Science & Tech Group Co., Ltd. Beschichtetes abrasives netz und herstellungsverfahren dafür

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US8684043B2 (en) * 2012-04-12 2014-04-01 Gessner Holding Ag Textile substrate with water and water vapor dissipating properties
KR102127547B1 (ko) * 2013-07-19 2020-06-26 국립대학법인 나고야공업대학 금속제 연마 패드 및 그 제조 방법
US9623541B2 (en) * 2014-12-24 2017-04-18 Saint-Gobain Abrasives, Inc. Abrasive flap wheels including hybrid fabrics
US20180185986A1 (en) * 2016-12-31 2018-07-05 Saint-Gobain Abrasives, Inc. Abrasive buffing articles
US20180207766A1 (en) * 2017-01-26 2018-07-26 Howard Newman Multiple smooth elements bonded to a ground; novel tools and methods for surface improvement of metals and other materials
US10849660B2 (en) 2017-02-21 2020-12-01 Diamabrush Llc Sanding screen device
KR20200083648A (ko) 2017-12-29 2020-07-08 생-고뱅 어브레이시브즈, 인코포레이티드 연마용 버핑 물품
EP3546628A1 (de) * 2018-03-27 2019-10-02 Habasit AG Gewebe und schleifmittel damit
CN110757353A (zh) * 2019-11-04 2020-02-07 四川省三台县固锐实业有限责任公司 一种用作磨具基材的网格布与增强型网格布及其磨具

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KR100788295B1 (ko) 2007-12-27
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