EP0166816B1 - Verfahren zum Erzeugen eines elektrostatischen Feldes zum elektrostatischen Beflocken eines faden-oder garnförmigen Materials und danach erzeugter Flockfaden bzw. danach erzeugtes Flockgarn - Google Patents

Verfahren zum Erzeugen eines elektrostatischen Feldes zum elektrostatischen Beflocken eines faden-oder garnförmigen Materials und danach erzeugter Flockfaden bzw. danach erzeugtes Flockgarn Download PDF

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Publication number
EP0166816B1
EP0166816B1 EP84114967A EP84114967A EP0166816B1 EP 0166816 B1 EP0166816 B1 EP 0166816B1 EP 84114967 A EP84114967 A EP 84114967A EP 84114967 A EP84114967 A EP 84114967A EP 0166816 B1 EP0166816 B1 EP 0166816B1
Authority
EP
European Patent Office
Prior art keywords
filaments
electrodes
potential surfaces
flock
group
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
EP84114967A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0166816A2 (de
EP0166816A3 (en
Inventor
Robert L. Goerens
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.)
Uniroyal Textilcord SA
Original Assignee
Uniroyal Textilcord SA
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 Uniroyal Textilcord SA filed Critical Uniroyal Textilcord SA
Priority to AT84114967T priority Critical patent/ATE42975T1/de
Publication of EP0166816A2 publication Critical patent/EP0166816A2/de
Publication of EP0166816A3 publication Critical patent/EP0166816A3/de
Application granted granted Critical
Publication of EP0166816B1 publication Critical patent/EP0166816B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/408—Flocked yarns
    • 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
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23943—Flock surface

Definitions

  • the invention relates to a method for generating an electrostatic field of high voltage for the electrostatic flocking of a thread-like or yarn-shaped material which is moved in a host of adhesive-provided, grounded threads through a high-voltage electrostatic field which acts between the potential levels of electrodes .
  • the flocked material which is brought up on an electrically non-conductive conveying means arranged above the bottom electrode and below the threads of the thread sheet, is accelerated in the direction of the threads of the thread sheet and shot into the adhesive jacket of the threads.
  • the device relates to a flocking chamber formed from the lower and upper electrodes, each of which has an electrostatically effective potential surface and can be connected to high electrical voltage.
  • a continuous conveying means which brings the flock material, is arranged between the electrodes.
  • the flocking chamber is preceded by an adhesive application device for the thread sheet that can be pulled off a creel. Downstream of the flocking chamber is a drying chamber for the flocked threads of the thread sheet.
  • the threads are kept straight by a tensioning device and wound up by a winding device.
  • All-round flocked yarns and threads can be obtained if, according to the manufacturing process of DE-PS-1 635 235, the threads are rotated about their longitudinal axis on their way through the electric field. This known procedure is disadvantageous with regard to the continuous twist. The flock density of the thread obtained can also be further improved.
  • the aim of the invention is to provide a method for electrostatic flocking, according to which any yarn and thread can be flocked tightly and optimally without the yarn or thread having to be rotated.
  • the shortcomings of the known methods are to be avoided.
  • this is achieved in that an electric field is generated between non-planar potential surfaces of the electrodes in the direction of action transverse to the longitudinal direction of the thread, and that these potential surfaces are effective symmetrically to each thread of the family of threads and that the threads are moved in a straight line in the longitudinal direction of the thread by the electrical field.
  • the threads of the thread family are flocked tightly with flock material all around, without the thread or the electrode having to be rotated.
  • the electric field is generated in a very simple manner between potential surfaces that are curved to the thread.
  • the flock In an electrostatic field, the flock is always fired from the electrode at a right angle to the potential surface and accelerated. If the potential surfaces are not flat, the flock follows shorter and longer field lines. Flock, which gets into the area of the earthed threads of the thread sheet or touches the adhesive jacket of the thread, is attracted to the thread and overcomes the influence of the field lines. The deviation of the flock flight direction is small. It can be up to 30 °. The speed and mass of the flock allow this for a short time. As a result, a large number of flock portions shoot diagonally into the adhesive jacket in an electrical field between uneven potential surfaces of the electrodes. These flock portions are sufficient to flock the thread tightly and evenly without twisting. The flock is anchored radially as well as at angled angles to the thread in the adhesive jacket. As a result, it has a greater flock density.
  • the electric field can be generated between arcs, in particular circular arcs, sinusoids or other undulations, or between stepped potential surfaces of the electrodes.
  • the upper and lower electrodes can also be divided into several individual electrodes.
  • an electric field of different field strengths can be generated to increase the flocking density. This effect is used so that the thread of the thread sheet is flocked so densely on the way through the electric field that at the field exit point at the latest the flock that shoots back and forth no longer has any place on the surface of the adhesive.
  • the threads of the thread sheet can also be moved continuously or discontinuously. All-round flocking also takes place when the thread is at rest.
  • a field of any and different field strength can be generated.
  • a device is provided according to the preamble of claim 7, in which the potential surfaces of the electrodes are uneven in the direction transverse to the longitudinal direction of the thread, in particular are curved and symmetrical to the thread.
  • Preferred regular curvatures are characterized by a circular arc, in particular concave curvature, viewed from the thread, or obtained by wave-shaped formation of the potential surfaces.
  • An electrical field with field lines of different lengths can be generated between such electrodes, which is particularly advantageously suitable for tightly flocking thread or yarn of a family.
  • Further configurations are stepped electrodes which are subdivided into partial electrodes. Different high voltages can be applied.
  • the distances between the electrodes and the thread sheet can be changed. Furthermore, the electrodes can be inclined to one another in the thread running direction. These measures allow a basic setting and intensification in the flocking.
  • the flocking device 1 essentially consists of a flocking chamber 2. It comprises an upper and lower electrode 3, 4 and the part 5 ′ of an endless conveyor 5 located therebetween. From a creel 6 threads 12 are in a family of threads - cf. also Fig. 3 reference numerals 12 '- deducted. They are flocked in the flocking chamber 2 and held or moved in a straight line by a tensioning device 10. Tensioning means that the threads are held so that they do not sag. Depending on the thread shrinkage, the corresponding change in length is also taken into account. The flocked threads are dried in a drying device 9 and wound up with the aid of a winding machine 11.
  • FIG. 2 shows the basic structure of the uneven potential surface 13 or 14 of the upper and lower electrodes 3, 4 in the form of a curvature. These surfaces are hollow-curved and arranged symmetrically to the thread 12. The distances of the potential surfaces 13, 14 from the thread can be changed; however, they are always the same size for thread. An electric field of high voltage is generated between these potential surfaces, the field lines of which are of different lengths. Flocked threads 12 are shown schematically.
  • the upper electrode 3 is e.g. B. to a high voltage of + 55 KV and the lower electrode z. B. connected to a high voltage of - 45 KV.
  • the flock transported into the flock chamber by the conveyor 5, 5 'shoots back and forth between the potential surfaces due to the effect of the electric field.
  • the grounded thread 12 is surrounded by an adhesive jacket (not shown) and has an electrically neutral field in this area. Portions of the flock shooting back and forth penetrate essentially radially into the adhesive jacket. Further portions of the flock are removed from the influence of the field lines in the area of the neutral zone and also shoot into the adhesive jacket at a small oblique angle, which can be up to 30 °.
  • the two thread flanks not facing the potential surfaces also fill with partly radial, partly inclined flocking parts until the thread is completely flocked.
  • FIG. 3 A preferred embodiment of the potential surfaces is shown in FIG. 3.
  • the electrode surfaces 15, 16 are of uniform wavy design; etc. in the plane x, which is perpendicular to the longitudinal axis of the thread.
  • the group of threads of the threads 12 is designated 12 '.
  • the threads are preferably located in the middle between the symmetrical wave troughs.
  • the valleys and bellies of the electrode surface extend essentially parallel to the longitudinal axis of the thread. However, these valleys and bellies can also extend in an oblique to diagonal course of the recesses 17 to the longitudinal axis of the thread. This is shown in FIG. 4.
  • FIG. 5 shows an arrangement of electrodes 20, 21 which have potential surfaces which are spatially formed both transversely to and in the longitudinal direction y of the thread.
  • This can e.g. B. dome-shaped or truncated pyramid-like recesses. Any type of "volumetric" recess is possible with symmetrical valleys and islands.
  • FIG. 6 shows an arrangement of electrodes 22 which are arranged inclined to one another in the longitudinal direction y of the thread.
  • the distance E on the inlet side is preferably greater than that on the outlet side A.
  • the flocking is more intensive in the area of the smaller electrode distance compared to the larger electrode distance.
  • Fig. 7 shows an arrangement of stepped electrodes 19. These are as partial electrodes intended. Each pair of electrodes can take a certain, arbitrary distance to the thread sheet. Furthermore, each electrode can be connected to a specific, selectable high voltage.
  • FIG. 8 shows a top view of some of many possible spatial surface configurations of the electrodes 20, 21 which are suitable for generating an electric field between uneven potential surfaces with different field line lengths in order to flock threads which are not twisted on their way through the field .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)
EP84114967A 1984-06-26 1984-12-08 Verfahren zum Erzeugen eines elektrostatischen Feldes zum elektrostatischen Beflocken eines faden-oder garnförmigen Materials und danach erzeugter Flockfaden bzw. danach erzeugtes Flockgarn Expired EP0166816B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114967T ATE42975T1 (de) 1984-06-26 1984-12-08 Verfahren zum erzeugen eines elektrostatischen feldes zum elektrostatischen beflocken eines faden-oder garnfoermigen materials und danach erzeugter flockfaden bzw. danach erzeugtes flockgarn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843423462 DE3423462A1 (de) 1984-06-26 1984-06-26 Verfahren und vorrichtung zum elektrostatischen beflocken eines faden- oder garnfoermigen materials
DE3423462 1984-06-26

Publications (3)

Publication Number Publication Date
EP0166816A2 EP0166816A2 (de) 1986-01-08
EP0166816A3 EP0166816A3 (en) 1987-10-21
EP0166816B1 true EP0166816B1 (de) 1989-05-10

Family

ID=6239142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114967A Expired EP0166816B1 (de) 1984-06-26 1984-12-08 Verfahren zum Erzeugen eines elektrostatischen Feldes zum elektrostatischen Beflocken eines faden-oder garnförmigen Materials und danach erzeugter Flockfaden bzw. danach erzeugtes Flockgarn

Country Status (20)

Country Link
US (2) US4622235A (es)
EP (1) EP0166816B1 (es)
JP (1) JPS6115757A (es)
KR (1) KR890000238B1 (es)
AT (1) ATE42975T1 (es)
BR (1) BR8500516A (es)
CA (1) CA1236347A (es)
DD (1) DD229048A5 (es)
DE (2) DE3423462A1 (es)
DK (1) DK168224B1 (es)
EG (1) EG16905A (es)
ES (2) ES8607063A1 (es)
FI (1) FI74632C (es)
IE (1) IE56040B1 (es)
IN (1) IN162804B (es)
LU (1) LU85530A1 (es)
MX (1) MX157786A (es)
NO (1) NO160149C (es)
SU (1) SU1410862A3 (es)
ZA (1) ZA85301B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020040A (en) * 1987-06-24 1991-05-28 Digital Equipment Corporation Overwriting system for magneto-optical recording with self timing track
US20010003600A1 (en) 1998-07-10 2001-06-14 Gordon G. Guay Method of manufacturing a textured toothbrush bristle
KR20030046767A (ko) * 2001-12-06 2003-06-18 심우진 플로킹 얀의 제조방법 및 제조장치
EP2156901A3 (de) * 2006-12-21 2010-11-17 Hans-Joachim Stieber Herstellungssystem für ein netz- oder gitterartiges Flächenerzeugnis
EP2225966A1 (en) * 2009-03-04 2010-09-08 Braun GmbH Toothbrush bristle and method for manufacturing such a bristle
KR20200062831A (ko) * 2018-11-27 2020-06-04 삼성전자주식회사 약액 공급 장치 및 이를 포함하는 반도체 제조 장치
CN114833043B (zh) * 2022-04-24 2023-09-19 浙江大学 一种高密度高取向碳纤维短纤阵列的制备方法及导热垫

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447374A (en) * 1934-04-25 1948-08-17 Granne Trust Company Method of applying coating materials
US2328577A (en) * 1940-01-12 1943-09-07 Behr Manning Corp Process and apparatus for grading and for coating with comminuted material
DE1080512B (de) * 1954-05-11 1960-04-28 Saladin & Co Verfahren und Vorrichtung zum Herstellen von Pluesch, Samt, Velour, kuenstlichem Wildleder, Schmirgelleinen, Sandpapier od. dgl. durch elektrostatisches Eintreiben von Kleinteilchen
GB879143A (en) * 1959-12-11 1961-10-04 Eloflock Oberflaechenveredlung Improvements in or relating to the electro-static coating of filaments
DE1288489B (de) * 1963-03-21 1969-01-30 Bayer Ag Verfahren zum elektrostatischen Auftragen laenglicher Teilchen auf laufende Gebilde
DE1282521B (de) * 1963-04-24 1968-11-07 Bayer Ag Vorrichtung zum Auftragen von kleinen Teilchen, z. B. Flocken, im elektrischen Feld
DE1577944C2 (de) * 1966-12-31 1982-06-16 Kühn, Vierhaus & Cie AG, 4050 Mönchengladbach Vorrichtung zum elektrostatischen Beflocken von Textilfäden
GB1227377A (es) * 1967-08-03 1971-04-07
DE1808119A1 (de) * 1968-11-09 1970-05-27 Kuehn Vierhaus & Cie Ag Flockgarn,sowie Verfahren und Vorrichtung zu seiner Herstellung
US3591403A (en) * 1968-12-05 1971-07-06 Bigelow Sanford Inc Electrostatic flocking
US3968283A (en) * 1974-05-21 1976-07-06 Scott Paper Company Flocked filamentary element and structures made therefrom
ES438938A1 (es) * 1975-06-27 1977-08-16 Flokart S A Perfeccionamientos introducidos en el flocado electrostaticode hilos.
DE2839941C2 (de) * 1978-09-14 1983-02-17 Kühn, Vierhaus & Cie AG, 4050 Mönchengladbach Elektrostatische Beflockungseinrichtung für die Herstellung von Flockgarn
US4312293A (en) * 1980-09-12 1982-01-26 Salomon Hakim Flocking apparatus

Also Published As

Publication number Publication date
ES8607063A1 (es) 1986-06-16
ES540764A0 (es) 1986-06-16
US4622235A (en) 1986-11-11
DK72585D0 (da) 1985-02-15
NO850202L (no) 1985-12-27
EP0166816A2 (de) 1986-01-08
EP0166816A3 (en) 1987-10-21
ATE42975T1 (de) 1989-05-15
DE3423462C2 (es) 1987-01-29
CA1236347A (en) 1988-05-10
JPH0419907B2 (es) 1992-03-31
FI74632B (fi) 1987-11-30
NO160149B (no) 1988-12-05
DK168224B1 (da) 1994-02-28
FI850525L (fi) 1985-12-27
ZA85301B (en) 1985-08-28
KR890000238B1 (ko) 1989-03-11
DE3423462A1 (de) 1986-01-02
NO160149C (no) 1989-03-15
IN162804B (es) 1988-07-09
SU1410862A3 (ru) 1988-07-15
DD229048A5 (de) 1985-10-30
KR860000437A (ko) 1986-01-28
DK72585A (da) 1985-12-27
CA1254081C (es) 1989-05-16
IE56040B1 (en) 1991-03-27
US4671980A (en) 1987-06-09
LU85530A1 (de) 1986-04-03
DE3478127D1 (en) 1989-06-15
JPS6115757A (ja) 1986-01-23
EG16905A (en) 1991-06-30
FI850525A0 (fi) 1985-02-08
MX157786A (es) 1988-12-09
BR8500516A (pt) 1986-04-15
FI74632C (fi) 1988-03-10
IE850234L (en) 1985-12-26
ES8607062A1 (es) 1986-06-16
ES540749A0 (es) 1986-06-16

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