US3432889A - Process for the manufacture of a draftable staple fiber band of high density and breaking length - Google Patents

Process for the manufacture of a draftable staple fiber band of high density and breaking length Download PDF

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Publication number
US3432889A
US3432889A US388430A US38843064A US3432889A US 3432889 A US3432889 A US 3432889A US 388430 A US388430 A US 388430A US 38843064 A US38843064 A US 38843064A US 3432889 A US3432889 A US 3432889A
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United States
Prior art keywords
sliver
staple fiber
fixing agent
draftable
drafting
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Expired - Lifetime
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US388430A
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English (en)
Inventor
Werner Naegeli
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Pavena AG
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Pavena AG
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    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars
    • D01H5/12—Details
    • D01H5/14—Pinned bars

Definitions

  • a dissolved fixing agent into the staple fiber layer, the latter is then consolidated into a sliver of small specific volume and excess fixing agent is withdrawn.
  • the sliver is bonded by the fixing agent by evaporating the solvent of the fixing agent by drying in a drying zone.
  • a doubled fiber arrangement from a plurality of these slivers and subsequently the bond is ruptured by drafting in a drafting zone.
  • the sliver leaving the aforesaid drafting zone is subjected to further soaking with a liquid which is the same as the initially introduced fixing agent or compatible with such fixing agent and capable of dissolving the latter.
  • the fiber material of the sliver is consolidated, excess liquid is extracted, and the sliver dried.
  • the present invention has reference to an improved process for the manufacture of a draftable staple fiber band or sliver of high density and breaking or tearing length from which a twisted yarn can be produced after subsequent drafting.
  • a primary object of the present invention is directed towards overcoming these disadvantages by providing an improved process for the manufacture of a draftable staple fiber band of high density and breaking length.
  • a further feature of the present invention resides in the drafting of the staple fiber layer to produce a greater fiber parallelism prior to the first application of dissolved fixing agent.
  • the inventive process is further characterized by the feature that the bond attained by introducing and evaporating the solvent is maintained until the fibers are withdrawn through the delivery rollers of a subsequent drafting zone.
  • the thus obtained band or sliver possesses the essential requirements which must be demanded for ideal behavior during drafting in a single-zone drafting arrangement at the ring spinning frame should the yarn quality be brought to a stage not previously attainable.
  • the carded yarns spun from a band or sliver produced according to the invention possess greater uniformity, less thick and thin locations, smaller neppiness, as well as greater breaking strength, and very closely approach the species of a combed yarn.
  • the bands become considerably more resistant for transportation, and band rupture as well as faulty drafting due to improper processing are practically impossible.
  • band or sliver lifting-rollers and other supply means to a drafting arrangement are rendered superfiuouos.
  • bundles or packages necessary for material transport from machine to machine contain considerably larger quantities of material in consequence of the greater density of the compact bands.
  • FIGURE 1 schematically illustrates a machine installation for delivery of a homogeneous draftable staple fiber band
  • FIGURE 2 depicts a variant of the machine installation of FIGURE 1;
  • FIGURE 3 is an installation suitable for carrying out the inventive process.
  • FIGURE 4 illustrates a detail of the installation of FIGURE 3.
  • a conventional blowing room installation 1 furnishes a number of carding machines 2 with fiber material which deliver a homogeneous and draftable staple fiber band for the inventive process in the final stage of processing.
  • a staple fiber band can, of course, consist of natural or manmade fibers, or mixtures thereof, and can be produced from a given machine which, like the carding engine, is capable of delivering a homogeneous draftable staple fiber band.
  • the staple fiber band produced at a carding engine or machine 2 (FIGURE 1) is then, after either forming a staple fiber layer 3 or, however, after grouping together a number of card bands or slivers 3', first of all consolidated into a fiber arrangement or stand 3 (FIGURE 2) and this doubled fiber arrangement 3" drafted in a conventional multi-zone drafting arrangement 4 for achieving a desired fiber parallelism.
  • the drafting arrangement of FIGURE 3 designated by reference character 4 corresponds to the drafting arrangement 4 of FIGURE 2 and incorporates a preliminar drafting zone and main drafting zone.
  • a fixing agent for example a sizing agent dissolved in water, more fully to be considered hereinafter.
  • the sliver can 10 advantageously provided with a perforated floor or base 11, after having been filled, is placed in an air current heated or conditioned by means of a suitable heater mechanism 12. This air current then flows through the sliver can 10 and is drawn-off via this can 10 and through a chimney or flue 13.
  • a suitable heater mechanism 12 heated or conditioned by means of a suitable heater mechanism 12.
  • the fixing agent itself is delivered under pressure from a reservoir or supply container 14 to the liquid applying apparatus 6.
  • This container 14 incorporates a heating coil 15 for heating the fixing agent in the event such is desired.
  • the excess fixing agent can again be returned to the container 14 via a pump and a filter (not shown).
  • the two conduits 18 indicate that the fixing agent can contain different constituents which, as the case may be, can be separately introduced, as will be further explained hereinafter.
  • the entire assembly of apparatus according to the upper portion of FIGURE 3 can, as will be recalled, conveniently be termed a compact-sliver machine.
  • the sliver can 10 filled with the fixed band or sliver 6b is then brought to a second, analogously constructed compactsliver machine, depicted in the lower portion of FIGURE 3.
  • the four rollers 20 of the second roller group all travel with the same, yet greater circumferential speed, than the roller pair 21.
  • the web 22 leaving the single-zone drafting arrangement 19 is then again consolidated or grouped together while preserving the parallelism of the fibers and while making uniform the distribution of the adhesive or agglutinant introduced during the previous stage, such web then being delivered to a further liquid applying apparatus 23.
  • the liquid applying apparatuses 6 and 23 are described in detail in my copending, commonly assigned, United States patent application Ser. No. 326,058, filed Nov. 26, 1963, and entitled Method and Apparatus for the Continuous Introduction of Liquid Into a Staple Fiber Band or the Like, so that further details of the physical structure thereof is not believed warranted.
  • the water soluble fixing agent introduced during the second stage advantageously possesses a smaller concentration than the fixing agent introduced during the previous work-cycle and, of course, isalthough it basically can be of a different naturecompatible with and can dissolve such.
  • the fixing agent introduced during this stage serves, on the one hand, to sufiiciently re-activate the homogeneously distributed size particles still disposed in the sliver, that is, permits superficial swelling and partial dissolving, in order to no longer disturb the uniformity achieved by doubling and drafting, and, on the other hand, to guarantee for a renewed, faultless fixing of the sliver after leaving the second compact sliver machine.
  • connection or bond between the fibers should be capable of rupture in the drafting zone of the drafting arrangement without fiber damage, and without the cohesion or bond effected by the fixing agent being prematurely destroyed in consequence of bending and clamping between the individual rollers during the infeed of the bands; in other Words sufficient elasticity should prevail.
  • the fixing agents the water soluble sizing agents previously employed up to the present in weaving mills or textile manufacturing processes, whereby also an additional sizing with simultaneous reactivation of the already available size particles during the textile manufacturing process, if necessary, does not encounter any difl'iculty whatsoever.
  • Such type sizing agents which are well known to the art are cornstarch, rice starch and potato starch, which during preparation are dissolved in a concentration of 0.5 to 5% by cooking in water and cooled down to room temperature, or also applied in heated condition.
  • the fixing agents on the basis of pure starch give relatively brittle connections or bonds between the individual fibers resulting in a stiff band or sliver, so that the bond then, during unsuitable conditions of handling, for example With pronounced flexing or too great loading of the draw-in rollers, easily breaks or ruptures already prior to drafting.
  • This disadvantage can be countered by the addition of plasticizing agents.
  • a polyvinyl alcohol as the fixing or sizing agent which, likewise to achieve a condition of use, is mixed in a concentration of approximately 0.5 to 5% in water.
  • the fixing or sizing agent a solution containing, in combination, starch and polyvinyl alcohol.
  • a solution containing, in combination, starch and polyvinyl alcohol are also suitable for use.
  • sodium alginate, casein as well as cellulose xanthogenate are also suitable for use.
  • the homogeneous distribution of the solution of fixing agent or sizing blend in the sliver and the good wetting of the individual fibers can be additionally facilitated by the addition of a surfactant or wetting agent.
  • the preparation of the fixing agent is undertaken with Vibatex S, a commercially available aqueous polyvinyl alcohol with 20% dry content manufactured by Ciba AG of Basel, Switzerland. 140 grams Vitatex S are admixed with 860 grams hot water for each kilogram fixing agent.
  • This fixing agent is introduced to the band or sliver via the liquid applying apparatus 6 and by means of the stripping disks 7 pressed-out until attaining a fixing agent content of 40% calculated with respect to the normal weight of the introduced cotton (based upon 65% relative humidity at 20 C.). For each kilogram normally climatized cotton this 40% fixing agent thus corresponds to 400 grams aqueous solution, containing approximately 56 grams Vibatex S.
  • each 2000 tex. are then doubled into a fiber arrangement of 12,000 tex., and with a fourteenfold drafting in a single-zone drafting arrangement there results at the outlet a sliver of 860 tex., which is then delivered to the liquid applying apparatus 23.
  • fixing agent possessing a smaller Vibatex S concentration of grams per kilogram fixing agent.
  • the staple fiber band produced in this manner possesses a breaking or tearing length in the same order of magnitude as that after completion of the first fixing operation.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1 wherein said further soaking with a liquid comprises the steps of introducing a dissolved fixing agent essentially consisting of the same components as the initially introduced dissolved fixing agent, into the drafted staple fiber layer having particles of said initially introduced fixing agent.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1, wherein said further soaking with a liquid comprises the step of introducing a liquid which is compatible with respect to said initially introduced fixing agent which is still present in the sliver.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1, wherein said further soaking with a liquid comprises the step of introducing a liquid which is capable of dissolving any initially introduced fixing agent still disposed in the sliver.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1, wherein said further soaking with a liquid comprises the steps of introducing a liquid which is capable of solvatizing any initially introduced fixing agent still disposed in the sliver.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1 including the step of conditioning said sliver in the drying zone for bringing the fiber material into a condition suitable for subsequent drafting.
  • Process for the manufacture of a draftable staple fiber sliver according to claim 1, further including the step of maintaining the bond achieved at the sliver due to introduction and evaporation of the solvent of the fixing agent until withdrawal of the fibers of the sliver by the delivery rollers of said drafting zone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Evaporation-Type Combustion Burners (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
US388430A 1963-08-16 1964-08-10 Process for the manufacture of a draftable staple fiber band of high density and breaking length Expired - Lifetime US3432889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1023163A CH425569A (de) 1963-08-16 1963-08-16 Verfahren zum Herstellen eines verzugsfähigen Stapelfaserbandes hoher Dichte und Reisslänge sowie das nach diesem Verfahren erhaltene verzugsfähige, ungedrehte Stapelfaserband

Publications (1)

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US3432889A true US3432889A (en) 1969-03-18

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US388430A Expired - Lifetime US3432889A (en) 1963-08-16 1964-08-10 Process for the manufacture of a draftable staple fiber band of high density and breaking length

Country Status (13)

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US (1) US3432889A (de)
JP (1) JPS4942847B1 (de)
AT (1) AT257427B (de)
BE (1) BE650790A (de)
CH (1) CH425569A (de)
DE (1) DE1510376C3 (de)
DK (1) DK121946B (de)
ES (1) ES303453A1 (de)
FI (1) FI40980B (de)
FR (1) FR1404888A (de)
GB (1) GB1078632A (de)
NL (1) NL149238B (de)
NO (1) NO121885B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941905A (en) * 1971-10-12 1976-03-02 Pavena Ag Method of continuously impregnating a textile fiber arrangement with liquids
US4010056A (en) * 1971-12-22 1977-03-01 Pavena Ag Process for continuously bonding staple fibers into an essentially non-twisted yarn
CN106498569A (zh) * 2016-12-14 2017-03-15 盐城工学院 一种具备染色功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN106498570A (zh) * 2016-12-14 2017-03-15 盐城工学院 一种具备条干测试功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN106637549A (zh) * 2016-12-14 2017-05-10 盐城工学院 一种具备染色效果检测功能的粗纱机及制造粗纱的方法
CN110257922A (zh) * 2019-07-19 2019-09-20 苏州盛天力离心机制造有限公司 羽毛洗涤脱水一体机
CN115198406A (zh) * 2021-04-01 2022-10-18 卓郎智能技术有限公司 具有添加剂供应装置的纤维条子牵伸装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7803705A (nl) * 1977-12-01 1979-06-06 Hollandse Signaalapparaten Bv Werkwijze voor het vervaardigen van twistloos of nage- noeg twistloos garen en het volgens die werkwijze ver- kregen garen.
BG33370A1 (en) * 1981-07-22 1983-02-15 Dimitrov Method and apparatus for obtaining of nontwisted yarns from connected by sticking separate fibers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049905A (en) * 1929-07-04 1936-08-04 Gminder Emil Method of drawing bast fiber roving

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049905A (en) * 1929-07-04 1936-08-04 Gminder Emil Method of drawing bast fiber roving

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941905A (en) * 1971-10-12 1976-03-02 Pavena Ag Method of continuously impregnating a textile fiber arrangement with liquids
US4010056A (en) * 1971-12-22 1977-03-01 Pavena Ag Process for continuously bonding staple fibers into an essentially non-twisted yarn
CN106498569A (zh) * 2016-12-14 2017-03-15 盐城工学院 一种具备染色功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN106498570A (zh) * 2016-12-14 2017-03-15 盐城工学院 一种具备条干测试功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN106637549A (zh) * 2016-12-14 2017-05-10 盐城工学院 一种具备染色效果检测功能的粗纱机及制造粗纱的方法
CN106498570B (zh) * 2016-12-14 2018-08-10 盐城工学院 一种具备条干测试功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN106498569B (zh) * 2016-12-14 2018-08-10 盐城工学院 一种具备染色功能且加捻卷绕一体化的细纱机及制造细纱的方法
CN110257922A (zh) * 2019-07-19 2019-09-20 苏州盛天力离心机制造有限公司 羽毛洗涤脱水一体机
CN115198406A (zh) * 2021-04-01 2022-10-18 卓郎智能技术有限公司 具有添加剂供应装置的纤维条子牵伸装置

Also Published As

Publication number Publication date
DE1510376B2 (de) 1974-03-28
FR1404888A (fr) 1965-07-02
CH425569A (de) 1966-07-29
NL149238B (nl) 1976-04-15
AT257427B (de) 1967-10-10
ES303453A1 (es) 1965-01-01
GB1078632A (en) 1967-08-09
JPS4942847B1 (de) 1974-11-18
DE1510376A1 (de) 1970-07-02
FI40980B (de) 1969-03-31
DK121946B (da) 1971-12-20
BE650790A (de) 1964-11-16
DE1510376C3 (de) 1974-11-14
NL6408967A (de) 1965-02-17
NO121885B (de) 1971-04-19

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