ES337737A1 - Method of improving the purity and homogeneity of threads or filaments in melt-spinning - Google Patents

Method of improving the purity and homogeneity of threads or filaments in melt-spinning

Info

Publication number
ES337737A1
ES337737A1 ES337737A ES337737A ES337737A1 ES 337737 A1 ES337737 A1 ES 337737A1 ES 337737 A ES337737 A ES 337737A ES 337737 A ES337737 A ES 337737A ES 337737 A1 ES337737 A1 ES 337737A1
Authority
ES
Spain
Prior art keywords
spinning
mixing
melt
mixing elements
polymer
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
ES337737A
Other languages
Spanish (es)
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.)
Glanstoff A G
Original Assignee
Glanstoff A G
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 Glanstoff A G filed Critical Glanstoff A G
Publication of ES337737A1 publication Critical patent/ES337737A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4319—Tubular elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4313—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor comprising a plurality of stacked ducts having their axes parallel to the tube axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4323—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs

Abstract

Molten polymer is mixed prior to melt spinning by passing the polymer through one or more mixing elements 8, contained in parallel bores 7 situated immediately above the spinneret plate 4 which supports the filter assembly 10, the component stream of polymer in each of the mixing elements being repeatedly divided several times into two to eight filamentary flows which are recombined after each division. Each mixing element may have from 2 to 10 flow dividing devices 12 and the mixing elements communicate at their upper end with a distributing chamber 3 situated beneath the filter assembly and with a storage chamber 9 at their lower end situated just before the spinneret, the storage chamber being of very small volume so that the mixing occurs immediately prior to the spinning in such a manner that the component streams do not merge before spinning. When spinning monofilar and multifilar textile threads or filaments with a low count one mixing device may be used which is advantageously fitted into the supporting plate transversely to the direction of flow of the melt. The same arrangement is possible if 2 or 3 mixing elements are used.
ES337737A 1966-04-09 1967-03-08 Method of improving the purity and homogeneity of threads or filaments in melt-spinning Expired ES337737A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1660674A DE1660674C3 (en) 1966-04-09 1966-04-09 Method and device for improving thread purity and uniformity on melt spinning devices

Publications (1)

Publication Number Publication Date
ES337737A1 true ES337737A1 (en) 1968-06-01

Family

ID=7585955

Family Applications (1)

Application Number Title Priority Date Filing Date
ES337737A Expired ES337737A1 (en) 1966-04-09 1967-03-08 Method of improving the purity and homogeneity of threads or filaments in melt-spinning

Country Status (11)

Country Link
JP (1) JPS543969B1 (en)
AT (1) AT297205B (en)
BE (1) BE694378A (en)
CH (1) CH447468A (en)
DE (1) DE1660674C3 (en)
ES (1) ES337737A1 (en)
FI (1) FI44662C (en)
GB (1) GB1139397A (en)
LU (1) LU53359A1 (en)
NL (1) NL6704403A (en)
SE (1) SE330228B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104015A (en) * 1977-01-11 1978-08-01 Phillips Petroleum Company Spinneret assembly
DE3517793A1 (en) * 1984-05-25 1985-12-19 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Compensation of dwell-time differences in a melt stream
WO1994019516A1 (en) * 1993-02-18 1994-09-01 Barmag Ag Thermoplastic thread spinning installation
DE4305905C1 (en) * 1993-02-26 1994-07-28 Barmag Barmer Maschf Spinning equipment for thermoplastic fibres and spinning pump
CN110760938A (en) * 2019-11-04 2020-02-07 无锡金通高纤股份有限公司 Melt-spun monofilament melt uniform mixing system and control method

Also Published As

Publication number Publication date
SE330228B (en) 1970-11-09
GB1139397A (en) 1969-01-08
FI44662B (en) 1971-08-31
DE1660674B2 (en) 1976-11-25
BE694378A (en) 1967-07-31
LU53359A1 (en) 1967-06-05
NL6704403A (en) 1967-10-10
FI44662C (en) 1971-12-10
DE1660674A1 (en) 1971-04-29
CH447468A (en) 1967-11-30
DE1660674C3 (en) 1978-09-07
AT297205B (en) 1972-02-15
JPS543969B1 (en) 1979-02-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19840227