EP0091007B1 - Bande abrasive avec support tissé et son procédé de fabrication - Google Patents

Bande abrasive avec support tissé et son procédé de fabrication Download PDF

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Publication number
EP0091007B1
EP0091007B1 EP83102872A EP83102872A EP0091007B1 EP 0091007 B1 EP0091007 B1 EP 0091007B1 EP 83102872 A EP83102872 A EP 83102872A EP 83102872 A EP83102872 A EP 83102872A EP 0091007 B1 EP0091007 B1 EP 0091007B1
Authority
EP
European Patent Office
Prior art keywords
matrix
abrasive material
web
multicomponent fibers
segments
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
Application number
EP83102872A
Other languages
German (de)
English (en)
Other versions
EP0091007A3 (en
EP0091007A2 (fr
Inventor
Eberhard Dr. Dipl.-Chem. Kratzsch
Wolfgang Cygan
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.)
Akzo Patente Te Wuppertal Bondsrepubliek Dui GmbH
Original Assignee
Akzo GmbH
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
Application filed by Akzo GmbH filed Critical Akzo GmbH
Priority to AT83102872T priority Critical patent/ATE19484T1/de
Publication of EP0091007A2 publication Critical patent/EP0091007A2/fr
Publication of EP0091007A3 publication Critical patent/EP0091007A3/de
Application granted granted Critical
Publication of EP0091007B1 publication Critical patent/EP0091007B1/fr
Expired legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
    • B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns

Definitions

  • abrasive web with a woven backing made of synthetic fibers.
  • abrasive web is understood to mean bound abrasives according to "Ullmanns Encyclopedia of Technical Chemistry, Vol. 20, pp. 449 ff".
  • Such abrasives made of polyester are distinguished, among other things, by low water absorption compared to cotton abrasives and are therefore particularly well suited for wet grinding. They also have high strength, both tear and tear resistance, which enables a long service life. In contrast, a critical point of such abrasives can be the adhesion between the backing material and the binder. In DE-OS 25 31 602 it is therefore recommended not to manufacture the carrier material from filament yarn, but from fiber yarn, despite the greater strength.
  • the object of the present invention is to provide an abrasive with a woven backing material made of synthetic filament yarns, which is not inferior to a backing material made from fiber yarns with regard to the adhesion between the binder and the backing material. This task also includes its manufacture.
  • the carrier material made of filament yarn consists of fully or partially split multicomponent fibers of the matrix segment type.
  • multi-component fibers of the matrix segment type are fibers that are composed of at least two different components that are essentially incompatible with one another, for example polyester and polyamide.
  • the matrix is the component in which the segments are more or less embedded. It can happen that the matrix completely envelops the segments or that the segments are only partially surrounded by the matrix. Both the matrix and the segments are arranged with a substantially constant cross section over the entire length of the fiber.
  • Multi-component fibers of the matrix segment type which have at least three peripheral segments are preferably used in the context of the invention, at least some of the peripheral segments not being encased by the matrix, that is to say making up part of the edge of the cross section.
  • Cross sections of multi-component fibers of the matrix segment type are e.g. described in German Offenlegungsschrift 2 809 346. They are shown schematically in Figures 1 to 7.
  • B represents the so-called segments and a the matrix. The segments are embedded in the matrix and are partially or completely enveloped by it, as is the case with some segments in FIGS. 3, 4 and 5.
  • Cross sections according to FIGS. 1 to 4 have peripheral segments with rounded surface parts, whereas cross sections, as shown in FIG. 6, have, in addition to a rounded part at the edge of the cross section, also essentially straight-line parts of the surface.
  • Cross sections according to FIG. 6 are also referred to as an orange profile.
  • the cross section shown in Figure 6 is also called the six-member.
  • Cross sections according to FIGS. 1 to 4 are also referred to as so-called gear profiles, with FIGS. 2 to 4 being so-called six-gear profiles.
  • FIG. 3 also has an additional central segment. In FIG. 4 there are three further segments completely encased by the matrix.
  • FIG. 7 An asymmetrical and uneven arrangement of segments and the matrix is shown in FIG. 7.
  • the matrix consists of polyamide and the peripheral segments of polyester.
  • FIG. 8 shows cross sections of split filaments. The individual segments are completely separate.
  • Figure 9 are cross section of filaments shown that are only partially split.
  • the fully or partially split filament yarn is woven according to known methods and processed into abrasives.
  • FIG. 10 shows a schematic cross section through the abrasive: a) is the abrasive grain, b) the binder and c) the woven backing material.
  • a preferred embodiment of the invention is the elastically bound abrasive. It is preferably used in the form of endless flexible abrasive belts. But it can also be used in the form of rolls, sheets and strips. It will be explained in more detail by the following examples:
  • the abrasive produced in this way showed, after grinding samples in the next higher grain area, a much better adhesion between the carrier material and the binder when visually assessed than a comparison abrasive made of textured polyethylene terephthalate (diols) of the same titer (400 dtex). The grain including the coating was broken out less frequently.
  • the abrasive according to the invention even withstood a comparison in this regard with an abrasive made from polyester fiber yarn.
  • Example 1 was repeated with the exception that the total titer was now 200 dtex. The results were practically the same.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Woven Fabrics (AREA)
  • Multicomponent Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (6)

1. Bande abrasive comportant un matériau- support tissé en fibres synthétiques, caractérisée par des filés de filaments en fibres à plusieurs composants du type à matrice et à segments entièrement ou partiellement dissociés.
2. Bande abrasive selon la revendication 1, caractérisée par des fibres à plusieurs composants comportant une matrice en polyamide et des segments périphériques en polyester.
3. Bande abrasive selon la revendication 1 ou 2, caractérisée par des filés texturés selon le procédé de fausse torsion et fixés pendant la fausse torsion à une température d'environ 180 à 230° C.
4. Procédé de fabrication d'une bande abrasive selon les revendications 1-3, caractérisé par le fait que l'on part d'un filé de filaments en fibres à plusieurs composants du type à matrice et à segments, qu'on le dissocie entièrement ou partiellement en ses composants, qu'on le tisse et qu'on l'apprête ensuite de façon connue en un abrasif.
5. Procédé selon la revendication 4, caractérisé par des fibres à plusieurs composants comportant une matrice en polyamide et des segments périphériques en polyester.
6. Procédé selon la revendication 4 ou 5, caractérisé par le fait que l'on texture les fibres à plusieurs composants d'après le procédé de fausse torsion et qu'on lesfixe pendant la fausse torsion à une temperature d'environ 180 à 230°C.
EP83102872A 1982-04-06 1983-03-23 Bande abrasive avec support tissé et son procédé de fabrication Expired EP0091007B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102872T ATE19484T1 (de) 1982-04-06 1983-03-23 Schleifmittelbahn mit einem gewebten traegermaterial sowie seine herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823212805 DE3212805A1 (de) 1982-04-06 1982-04-06 Schleifmittelbahn mit einem gewebten traegermaterial
DE3212805 1982-04-06

Publications (3)

Publication Number Publication Date
EP0091007A2 EP0091007A2 (fr) 1983-10-12
EP0091007A3 EP0091007A3 (en) 1985-01-16
EP0091007B1 true EP0091007B1 (fr) 1986-04-30

Family

ID=6160386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102872A Expired EP0091007B1 (fr) 1982-04-06 1983-03-23 Bande abrasive avec support tissé et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0091007B1 (fr)
AT (1) ATE19484T1 (fr)
DE (1) DE3212805A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339911A1 (de) * 1983-11-04 1985-05-23 Akzo Gmbh, 5600 Wuppertal Verwendung von blasduesentexturierten garnen bei der herstellung von schleifmitteln auf unterlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1026175A (en) * 1962-10-25 1966-04-14 Carborundum Co Improvements in abrasive coated cloth
CA1052587A (fr) * 1974-07-24 1979-04-17 Raymond E. Pemrick Substrats de stabilite dimensionnelle amelioree
DE2809346C2 (de) * 1978-03-03 1985-04-18 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung von Faserstrukturen
DE2908101A1 (de) * 1979-03-02 1980-09-11 Akzo Gmbh Multifiler faden aus einzelfilamenten des mehrkomponenten-matrix-segmenttypus
DE2928484B1 (de) * 1979-07-14 1980-10-16 Ver Schmirgel & Maschf Verfahren zur Herstellung flexibler Schleifmittel
EP0045408B2 (fr) * 1980-07-31 1991-11-13 Norton Company Feuille flexible revêtue d'un abrasif

Also Published As

Publication number Publication date
EP0091007A3 (en) 1985-01-16
DE3212805C2 (fr) 1987-04-02
EP0091007A2 (fr) 1983-10-12
DE3212805A1 (de) 1983-12-15
ATE19484T1 (de) 1986-05-15

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