EP0045408B2 - Feuille flexible revêtue d'un abrasif - Google Patents

Feuille flexible revêtue d'un abrasif Download PDF

Info

Publication number
EP0045408B2
EP0045408B2 EP81105516A EP81105516A EP0045408B2 EP 0045408 B2 EP0045408 B2 EP 0045408B2 EP 81105516 A EP81105516 A EP 81105516A EP 81105516 A EP81105516 A EP 81105516A EP 0045408 B2 EP0045408 B2 EP 0045408B2
Authority
EP
European Patent Office
Prior art keywords
arrays
yarns
coated abrasive
yams
backing
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.)
Expired - Lifetime
Application number
EP81105516A
Other languages
German (de)
English (en)
Other versions
EP0045408A1 (fr
EP0045408B1 (fr
Inventor
Walter Augustus Yarbrough
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.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22634705&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0045408(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Norton Co filed Critical Norton Co
Priority to AT81105516T priority Critical patent/ATE13267T1/de
Publication of EP0045408A1 publication Critical patent/EP0045408A1/fr
Application granted granted Critical
Publication of EP0045408B1 publication Critical patent/EP0045408B1/fr
Publication of EP0045408B2 publication Critical patent/EP0045408B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to a flexilbe abrasive endless belt having abrasive grains adhesively bonded to at least one side of a backing.
  • Products comprising a flexible backing on at least one side of which are adhered abrasive grits are being referred to in the art as coated abrasives.
  • Coated abrasives in general, have been made on ranging from paper, cloth, leather, to plastic films and metal sheets. Except for specialty items the greater majority of all coated abrasive products are made on paper or woven cloth backings.
  • Coated abrasives often subject to high stresses in operation, are made from strong paper backings, vulcanized fiber backings, or, for strength and flexibility, woven cloth backings. Laminates of various of these materials have also been used and taught in the patent literature.
  • Knuckles are the small bumps on the surface of woven cloth caused by yarns curving to cross over other yams. The presence of such knuckles is believed to be responsible for the catastrophic failure of coated abrasive articles, particularly belts, in certain severe grinding operations.
  • U.S. Patent 3,146,560 shows an abrasive article in which six glass fiber strands are immersed in a resin bath and the resulting mass passed through a discharge slot. Abrasive particles are then pressed into the resulted reinforced plastic web.
  • the six strands are described as being "substantially in parallelism" (col. 8, lines 48-90). There is only one array of such strands.
  • a flexible coated abrasive endless belt having abrasive grains adhesively bonded to at least one side of a backing consisting of a structure of at least two arrays bound to each other by a stitching yarn, each of said arrays being of non-interlaced substantially coplanar and coparallel reinforcing textile yarns, said arrays being oriented in at least two respective distinct directions in the plane of the backing, most of the tensile strength of the coated abrasive sheet material along each of said at least two directions being furnished by the yams of all the arrays of non-interlaced substantially coplanar and coparallel yams oriented in said directions, one of said arrays forming the warp yams and another of said arrays running in the fill direction, and optionally a thin tissue sheeting between the warp and fill yarns, said structure being front, respectively back, filled to fill spaces between the yarns and the grains being attached on the such treated backing via a maker coat.
  • an array of yams is substantially coplanar if all the yams of the array can be accommodated in the shape between two parallel planes which are separated by a distance of four times the average diameter of the yarns in the array.
  • An array is substantially coparallel ifthe largest angular difference in direction between any two yams in the array is no more than thirty denrees.
  • a major advantage of the non-interlaced fabrics when employed as substrates for coated abrasive is the fact that such fabrics can be produced at much higher rates of speed than can conventional woven textiles, thus increasing the productivity and lowering the cost of manufacture.
  • the steps of sizing the yarn, back filling or sizing, saturating, front sizing, applying a maker coat, applying abrasive, and finally applying a "sand" size coat may all be used in coated abrasive production from the Malimo type, or stitch bonded fabrics.
  • tissue sheeting between the warp and fill yarns, to aid in preventing the back-fill treatment from penetrating too far into the cloth. This can be done in the Malimo machine during the manufacture of the backing.
  • finishing materials employed are not critical and many variations are possible provided proper cover and adhesion are achieved.
  • finishing is obtaining good adhesion to the backing, properly filling the cloth and preparing its surface for the maker coat to hold the abrasive, and adequately bonding the yarns so that the end product resists delamination, splitting, and tearing. Adequate flexibility for the end use intended is also important.
  • the particular chemical structure of the finishing compositions is not critical, except to the extent that it affects the physical properties described above.
  • the presently preferred material for the warp yarns is continuous filament polyester having relatively high strength and low elongation properties. Obviously other yarns of similar or higher strength properties and similar or lower elongation under load, may be used. In less critical applications yarns with less strength and higher elongation could be used, and other advantages of the present invention be still retained.
  • glass or metal yarns may be employed as part or all of the yarn arrays.
  • the preferred yarns in the fill direction are texturized continuous filament synthetic yarns, as in the example below. Natural and synthetic staple fiber textile yarns may be employed. Continuous filament yarns are particularly useful if they texturized, given a false twist, or are otherwise produced to have a high bulk or surface area so that good adhesion to the cloth finishing materials is achieved.
  • This example employs a stitch bonded backing of the type disclosed in Figure 9 of U.S. Patent 2,890,579.
  • the fabric of the example was made on Malimo machine (available from Unitecha Aussonhandelgesellschaft mbH, DDR-108 Berlin, Mohrenstrasse 53/54 GDR).
  • the approximately 10.2 cm (4 inch) wide carrier for the fill yarns holds 61 ends, and makes one complete cycle from one edge of the web and back for every 4 inch longitudinal forward motion of the web.
  • For a 152 cm (60 inch) wide machine this produces a fill which crosses the warp yarns at an angle of about 88° in one direction and 92° in the other.
  • the switch yams, which bind the warp to the fill arc 70 denier continuous filament polyester.
  • the stitch length is 1.2 mm.
  • the warp yarns are 1000 denier duPont type 68 continuous filament high tenacity polyester (9.2 grams per denier broaking strength), and the warp count is 14 ends per 2.54 cm (inch).
  • the fill yarns are continuous filament 170 denier (containing 33 filaments) available from Celanese Corporation as type 731 polyester. These yarns have a low twist (0.25 per 2.54 cm (inch) and are texturized to provide a bulky yarn for optimum adhesion to coatings later applied.
  • the tenacity is 3.5 to 3.9 grams/denier and the elongation is 18 to 24% at break.
  • the yarn is preferably not treated with a coning oil.
  • the above described backing was then saturated with a resin and acrylic latex composition to prepare it for front-filling, back-filling, and coating with maker grain and size coat.
  • a heat setting step is combined with the drying of the saturant.
  • Standard sizing rolls are employed to apply the following composition in the amount of 1360 to 1814 g. (3 to 4 pounds) per standpaper makers ream (S.P.M.R.) 30.6 m (330 square feet). The fill yarn side of the fabric was facing up.
  • the fabric Upon completion of the application of the saturant the fabric is dried on a tenter frame for at least 3 minutes in a hot air oven in which the temperature in the entry zone is 96.1 °C, (205°F), and the temperature at the exit zone is 176.7°C (350°F).
  • a tension of at least 907 g (2 pounds) per 2.54 cm (inch) of width is maintained on the fabric during its travel through the oven. This process not only dries the saturant but also heat-sets the fabric.
  • composition of the front fill coating applied to the fill yarn side in this example, but which tan instead be applied to the warp yam side if desired, is as follows:
  • the front fill coating composition is applied with a box knife in the amount of 10 to 11 pounds per ream, and water may be added as necessary to maintain the required viscosity for proper coating.
  • the coated cloth is again dried on a tenter frame with a tension of at least 907 g (2 pounds) per inch of width by passing through a hot air oven in which the entry temperature is 205°F and the exit zone temperature is 300°F.
  • composition is applied by knife coating in the amount of A5.4 Kg (10 pounds) per 30.3 m 2 (S.P.M.R.), and dried in an oven having an entry zone temperature of 150°F and an exit zone of 200°F.
  • a suitable formulation to be applied to the front sized side of the backing is as follows:
  • the wet adhesive layer is then dried: 25 minutes at 51.7°C (125°F.), 25 minutes at 57.2°C (135°F.), 18 minutes at 82.2°C (180°F.),25 minutes at 87.8°C (190°F.), and 15 minutes at 107.2°C (225°F.), after which a final cure at 110°C (230°F.) for 8 hours is given.
  • the coated abrasive material is then ready to be converted according to usual techniques, into belts.
  • a central feature of the invention is the use of yarn arrays which are not interlaced as in conventional woven fabrics, and the use of the terms "warp” and “fill” in the description of fabrics bonded by other means than weaving does not imply such interlacing.
  • the abrasive sheet material of the above example can be formed into belts by conventional joining techniques well known in the art. Particularly suitable are the butt joints described in U.S. Patents 3,665,600 and 3,787,273. Lapped joints as described in U.S. Patent 4,194,618 may also be used. In such cases it may be desirable to apply the front fill coating and the abrasive and maker on the warp side of the backing, instead of on the fill side. In the case of butt joints the backing may be coated on either one side or the other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Nonwoven Fabrics (AREA)
  • Knitting Of Fabric (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (3)

1. Courroie sans fin flexible revêtue d'un abrasif ayant des grains abrasifs fixés de manière adhésive sur au moins une face d'un support formé d'une structure composée d'au moins deux réseaux liés l'un à l'autre par un fil de piqûre, chacun desdits réseaux étant composé de fils textiles de renforcement non-entrelacés, situés sensiblement dans un même plan et parallèles entre eux, lesdits réseaux étant orientés dans au moins deux directions respectives distinctes dans le plan du support, la majeure partie de la résistance à la traction du matériau en feuille revêtu d'abrasif le long de chacune desdites directions étant fournie par les fils de tous les réseaux de fils non-entrelacés, situés sensiblement dans un même plan et parallèles entre eux, et orientés dans lesdites directions, l'un desdits réseaux formant les fils de chaîne et un autre desdits réseaux allant dans la direction de remplissage, et éventuellement une feuille de tissu mince étant placée entre les fils de chaîne et de remplissage, ladite structure étant chargée respectivement, côté frontal et côté arrière, pour remplir les espaces entre les fils, et les grains étant fixés au support ainsi traité par l'intermédiaire d'une enduction.
2. Courroie sans fin flexible revêtue d'un abrasif selon la revendication 1, dans laquelle l'un au moins desdits réseaux orientés dans au moins deux directions distinctes comprend des fils de filaments continus texturés ou des fils de fibres discontinues.
3. Courroie sans fin flexible revêtue d'un abrasif selon la revendication 1 ou 2, préparée en appliquant les grains abrasifs électrostatiquement à l'enduction adhésive formée sur le matériau en feuille.
EP81105516A 1980-07-31 1981-07-14 Feuille flexible revêtue d'un abrasif Expired - Lifetime EP0045408B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105516T ATE13267T1 (de) 1980-07-31 1981-07-14 Mit abrasif versehenes flexibles schleifband.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17407380A 1980-07-31 1980-07-31
US174073 1998-10-16

Publications (3)

Publication Number Publication Date
EP0045408A1 EP0045408A1 (fr) 1982-02-10
EP0045408B1 EP0045408B1 (fr) 1985-05-15
EP0045408B2 true EP0045408B2 (fr) 1991-11-13

Family

ID=22634705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105516A Expired - Lifetime EP0045408B2 (fr) 1980-07-31 1981-07-14 Feuille flexible revêtue d'un abrasif

Country Status (7)

Country Link
EP (1) EP0045408B2 (fr)
JP (1) JPS57114366A (fr)
AT (1) ATE13267T1 (fr)
DD (1) DD201652A5 (fr)
DE (2) DE45408T1 (fr)
ES (1) ES514058A0 (fr)
ZA (1) ZA814982B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867760A (en) * 1980-07-31 1989-09-19 Norton Company Coated abrasive
DE3212805A1 (de) * 1982-04-06 1983-12-15 Akzo Gmbh, 5600 Wuppertal Schleifmittelbahn mit einem gewebten traegermaterial
US4437865A (en) * 1982-08-27 1984-03-20 Carborundum Abrasive Company Flexible backing material for use in coated abrasives
US4478610A (en) * 1982-08-27 1984-10-23 Carborundum Abrasives Company Method of preparing flexible backing material for use in coated abrasives
DE3319063C1 (de) * 1983-05-26 1984-01-19 Vereinigte Schmirgel- und Maschinen-Fabriken AG, 3000 Hannover Zum Herstellen von Schleifbändern geeignetes textiles Trägermaterial
US4474585A (en) * 1983-05-31 1984-10-02 Norton Company Synthetic yarn-reinforced flexible webs stabilized against elongation, coated abrasive thereon, and process therefor
JPS59230750A (ja) * 1983-06-14 1984-12-25 Tomoegawa Paper Co Ltd 孔版用突起シ−ト
DE3339305A1 (de) * 1983-10-29 1985-05-23 Saerbeck-Textil Wagener KG, 4401 Saerbeck Flexibler, in naehwirktechnik hergestellter beschichtungstraeger
DE3339911A1 (de) * 1983-11-04 1985-05-23 Akzo Gmbh, 5600 Wuppertal Verwendung von blasduesentexturierten garnen bei der herstellung von schleifmitteln auf unterlage
US4589233A (en) * 1984-06-25 1986-05-20 Carborundum Abrasives Company Sectional abrasive belt
WO1986002306A1 (fr) * 1984-10-09 1986-04-24 Minnesota Mining And Manufacturing Company Materiau en feuilles a revetement abrasif et pourvu d'un support ameliore
DE3526502A1 (de) * 1985-07-24 1987-01-29 Norddeutsche Schleifmittel Ind Schleifband mit einer quer zu seiner laengsrichtung verlaufenden verbindungsfuge
US4725487A (en) * 1986-03-28 1988-02-16 Norton Company Flexible coated abrasive and fabric therefor
DE8912060U1 (fr) * 1989-10-10 1991-02-07 Norddeutsche Schleifmittel-Industrie Christiansen & Co (Gmbh & Co), 2000 Hamburg, De
US5577956A (en) * 1995-04-27 1996-11-26 Norton Company Hot metal grinding
US5919549A (en) * 1996-11-27 1999-07-06 Minnesota Mining And Manufacturing Company Abrasive articles and method for the manufacture of same
FI114902B (sv) † 2003-10-06 2005-01-31 Kwh Mirka Ab Oy Slipprodukt

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890502A (en) * 1929-10-26 1932-12-13 Bradford H Divine Buffing wheel
DE890912C (de) * 1951-12-05 1953-09-24 Wilhelm Mueller Schleifband
CH356033A (de) * 1957-04-12 1961-07-31 Beyer Olsen Arthur Stahlwollband zum maschinellen Schleifen und Polieren
US3146560A (en) * 1960-06-14 1964-09-01 Rexall Drug Chemical Abrasive products
GB1094894A (en) * 1963-07-16 1967-12-13 George Davies Abrasive or polishing elements
FR1428093A (fr) * 1965-02-10 1966-02-11 Filzfabrik Wurzen Veb Ruban à nettoyer, à poncer ou à polir et son procédé de fabrication
JPS5819293B2 (ja) * 1974-09-19 1983-04-18 ロバ−ト エル リ− 顎運動の分析及び記録装置

Also Published As

Publication number Publication date
ZA814982B (en) 1982-07-28
ATE13267T1 (de) 1985-06-15
JPS57114366A (en) 1982-07-16
EP0045408A1 (fr) 1982-02-10
ES8402195A1 (es) 1984-01-16
DE45408T1 (de) 1983-09-29
ES514058A0 (es) 1984-01-16
JPS6247155B2 (fr) 1987-10-06
DD201652A5 (de) 1983-08-03
EP0045408B1 (fr) 1985-05-15
DE3170492D1 (en) 1985-06-20

Similar Documents

Publication Publication Date Title
EP0045408B2 (fr) Feuille flexible revêtue d'un abrasif
US4722203A (en) Stitch-bonded fabrics for reinforcing coated abrasive backings
CA1210683A (fr) Armature non tissee pour articles composites
US3087699A (en) Wire fabrics and methods of producing the same
US4722857A (en) Reinforced non-woven fabric
US4437865A (en) Flexible backing material for use in coated abrasives
US4867760A (en) Coated abrasive
US4696850A (en) Iron-on interlining composite of knit layer and nonwoven layer of similar structure
PL176467B1 (pl) Termoadhezyjne płótno usztywniające oraz sposób wytwarzania termoadhezyjnego płótna usztywniającego
EP0281643B1 (fr) Etoffe non tissée renforcée
JPH0788615B2 (ja) 熱接着性貼合せ布
US10920110B2 (en) Tape for producing non-quilted articles and garment using the tape
US4478610A (en) Method of preparing flexible backing material for use in coated abrasives
US4225321A (en) Heat set and destretched polyester backing material in coated abrasive manufacture
CA1075007A (fr) Support en polyester durcissant a la chaleur et ramene apres etirage, enduit d'un abrasif
US3053020A (en) Sectional coated abrasive belt and process of making the same
US5126191A (en) Process for the production of a textile reinforcing web for composite materials based on resins and new type of web
EP0073313B1 (fr) Tissu lié par couture pour renforcer des supports abrasifs enduits
WO1986002306A1 (fr) Materiau en feuilles a revetement abrasif et pourvu d'un support ameliore
CN113638106A (zh) 一种抗褶皱型聚乙烯纤维布及其制备方法
US3316072A (en) Abrasive coated backing of sheathed synthetic fiber yarns
US3323959A (en) Method of manufacturing insulating textile material
US4456035A (en) Method of making double-sided textile material and textile material produced thereby
US5180633A (en) Composite textile material capable of being employed for resin reinforcement
CA1173253A (fr) Feuille abrasive a colle flexible

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT SE

17P Request for examination filed

Effective date: 19820506

EL Fr: translation of claims filed
DET De: translation of patent claims
ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 13267

Country of ref document: AT

Date of ref document: 19850615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3170492

Country of ref document: DE

Date of ref document: 19850620

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SAERBECK-TEXTIL WAGENER KG

Effective date: 19860128

26 Opposition filed

Opponent name: KARL MAYER TEXTIL-MASCHINEN-FABRIK GMBH

Effective date: 19860213

Opponent name: NORDDEUTSCHE SCHLEIFMITTEL-INDUSTRIE CHRISTIANSEN

Effective date: 19860212

Opponent name: FELDMUEHLE AKTIENGESELLSCHAFT, DUESSELDORF

Effective date: 19860208

Opponent name: VEREINIGTE SCHMIRGEL- UND MASCHINEN-FABRIKEN AG

Effective date: 19860203

26 Opposition filed

Opponent name: GUSTAV ERNSTMEIER GMBH & CO. KG

Effective date: 19860214

Opponent name: SIA SCHWEIZER SCHMIRGEL- UND SCHLEIFINDUSTRIE AG

Effective date: 19860214

Opponent name: CARBORUNDUM SCHLEIFMITTELWERKE GMBH

Effective date: 19860213

Opponent name: C. KLINGSPOR GMBH

Effective date: 19860210

ITTA It: last paid annual fee
PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19911113

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT CH DE FR GB IT LI SE

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

ET3 Fr: translation filed ** decision concerning opposition
EAL Se: european patent in force in sweden

Ref document number: 81105516.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000619

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000620

Year of fee payment: 20

Ref country code: GB

Payment date: 20000620

Year of fee payment: 20

Ref country code: DE

Payment date: 20000620

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000621

Year of fee payment: 20

Ref country code: AT

Payment date: 20000621

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010713

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010713

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010714

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20010713

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 81105516.9

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO