US3694870A - Apparatus for the compressive preshrinkage of fabrics - Google Patents

Apparatus for the compressive preshrinkage of fabrics Download PDF

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Publication number
US3694870A
US3694870A US85453A US3694870DA US3694870A US 3694870 A US3694870 A US 3694870A US 85453 A US85453 A US 85453A US 3694870D A US3694870D A US 3694870DA US 3694870 A US3694870 A US 3694870A
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Prior art keywords
layers
preshrinkage
compressive
belt
heated
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Expired - Lifetime
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US85453A
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English (en)
Inventor
George Fischer
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Cluett Peabody and Co Ltd
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Cluett Peabody and Co Ltd
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    • 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
    • D06C21/00—Shrinking by compressing

Definitions

  • ABSTRACT This disclosure teaches a method and apparatus for compressively preshrinking two layers of high-shrinkage fabric simultaneously and for limiting postprocessing loss of preshrinkage in either layer to a minimum.
  • Two layers of fabric are drawn through preliminary finishing apparatus, such as a cloth spreader, then both layers are advanced together through a conditioning chamber and around a heated drum, preferably through a clip expander, and then together they are run through a rubber-belt compressive-preshrinkage unit. Thereafter the layers are separated and each is delivered to a separate woolen felt-belt dryer.
  • Each of the layers, as it enters its respective felt-belt dryer, is passed around an input roller against which it is pressed by a heated shoe which performs a final compressive preshrinking function and the layers are dried completely so that preshrinkage effected theretofore in the layers is not altered due to stretching in a wet condition in subsequent handling.
  • Another object of this invention is to provide a method and apparatus of the character stated wherein two layers of denim (or the like) may be run together through one conditioning chamber, one clip expander and one rubber-belt compressive-preshrinkage unit.
  • Another object of this invention is to provide a method and apparatus of the character stated wherein polishing effects otherwise obtained on both sides of both layers are enhanced.
  • Another object of this invention is to provide a method and apparatus of the character stated wherein compressive preshrinkage of each layer is controllable as required.
  • a preferable compressivepreshrinkage arrangement and method include (inter alia) a conditioning chamber and a heated drum for heating the dampened fabric and for thorough dispersion of moisture therethrough. From the heated drum the two layers of fabric are passed together through a clip expander which spreads the fabric to a desired width and then the two layers of fabric are run together through a rubber-belt compressive-preshrinkage unit. Thereafter the two layers of fabric are separated and each is passed around a separate woolen felt-belt dryer and then to a separate plaiting unit which folds each of the shrunk fabrics into a cart for delivery to subsequent processing and/or conversion units.
  • the layers could also be fed to a roll via a non-oscillating plaiting unit (not shown).
  • a non-oscillating plaiting unit (not shown).
  • Included in the improvement of this invention are heated shoes disposed for cooperation with input rollers at each of the felt-belt dryers. The purpose of the heated shoes is to further compressively preshrink each layer of fabric so that its susceptibility to subsequent stretching from handling in a wet condition will be minimized, whereby each of the fabric layers will have minimum shrinkage potential after it leaves its respective felt-belt dryer completely dried.
  • This expedient offers accurate control of compressive preshrinkage. Further, polishing of the fabric layers is also enhanced.
  • FIG. 1 illustrates one embodiment of the invention including apparatus for compressively preshrinking simultaneously two layers of fabric run together through a single conditioning chamber, over a single heated drum, through a single clip expander and through a single rubber-belt compressive preshrinkage unit.
  • a preferred embodiment for compressively preshrinking two continuous layers of high-shrinkage fabric comprises subjecting either or both layers to preliminary processing apparati.
  • processing may include (for example) merely feeding the layers from a supply cart over conventional conveying and tensioning rolls or scrimp bars to straighten them out and to provide a fairly uniform drag on the fabric layers as they are advanced to subsequent apparati.
  • the two layers are then brought together so that they are advanced jointly through apparati for performing the method here contemplated.
  • the layers are dampened by passing them through a conditioning chamber wherein water is sprayed on them.
  • the layers are also passed over conveyor rolls in the conditioning chamber arranged so that they follow a plurality of serpentined vertical runs.
  • the layers are passed over a heated drum, whereupon they are fed to a clip expander so that they are subjected to uniform lateral spreading accurately to form them to a desired width.
  • the two layers are then advanced together through a rubber-belt compressive-preshrinkage unit. Thereafter, the two layers are separated and each is passed around a separate felt-belt dryer.
  • each of the layers as it enters its respective felt-belt dryer, is passed around an input roller against which it is pressed by a heated shoe which performs a final compressive preshrinking function with subsequent complete drying so that preshrinkage efiected theretofore is not altered due to stretching as would happen in a wet condition.
  • each of the layers is introduced to a separate plaiting unit which folds each of the preshrunk layers of fabric into a cart for subsequent processing and/or conversion.
  • the layers could also be fed to a roll via a nonoscillating plaiting unit (not shown).
  • Apparati for performing the above-described method comprise a pair of supply carts l0 and 12 for holding respective fabric layers 14 and 16, which layers may or may not be of different cotton or primarily-cob ton materials or the like and which may or may not have different shrinkage characteristics.
  • Layers l4 and 16 are withdrawn from their carts by means of a plurality of conventional driving, conveying, tensioning and idling rollers for delivering the respective layers to apparati for carrying out the contemplated compressivepreshrinkage method. Either or both layers may be passed over tensioning rollers 18 and/or scrimping bars 20 to straighten out the fabric before it is compressively preshrunk. Layers l4 and 16 are joined together at 22 for joint advancement.
  • the jointly-advancing layers are drawn through conditioning chamber 24 having a pair of noules 26 which apply water to the two layers, thereby dampening the layers in preparation for compressive preshrinking.
  • the layers are then led over rollers 28 in conditioning chamber 24, so that they follow a plurality of serpentine vertical runs whereby each layer is moistened thoroughly.
  • the two plies are passed jointly around a heated drum 30 and then through clip expander 32 which operates ont he layers to adjust their widths.
  • compressive-preshrinkage unit 34 which operates in a known manner to preshrink the fabric layers by a predeterminable percentage.
  • compressive-preshrinkage unit 34 includes a rotary heated drum, a pair of relatively small-diameter belt-support rolls (either or both of which may be driven) a lower idler roll and a thick rubber belt (that passes beneath the drum as well as around the belt-support rolls and the idler roll).
  • the layers enter a leading nip between the belt and the drum and become compressed longitudinally or preshrunk by action of the belt as its contacted surface changes from an elongated condition under tension around the lead belt-support roll to a compacted condition under compression around the drum.
  • Afier layers 14 and 16 are discharged from compressive-preshrinkage unit 34 they are separated and passed around input rollers 36 and 38, respectively, of a pair of separate felt-belt dryers 40 and 42.
  • heated shoes 44 and 46 arranged to press the fabric layers 14 and 16 against input rollers 36 and 38, respectively, for further compressively preshrinking the layers.
  • the layers are then passed through the felt-belt dryers for complete drying so that subsequent handling of these layers will not cause them to stretch and alter desired preshrinkage achieved theretofore.
  • the feltbelt dryers are of known construction and operation.
  • Heated shoes 44 and 46 are shown and described in detail in the above-mentioned Cluett US. Pat. No. 1,992,194 and they comprise preferably ironing blocks which are heated by internal electric elements, and which are employed here to dry the respective layers and to coact with the felt-belt dryers in imparting a desired polishing effect to the layers.
  • layers 14 and 16 are advanced separately as they leave felt-belt dryers 40 and 42, and are delivered respectively to plaiting units 48 and S of known design and operation, whereby the fabric layers are folded in a desired manner as they are deposited in caits 52 and 54 for transfer elsewhere.
  • the layers could also be fed to a roll via a non-oscillating plaiting unit (not shown).
  • stretching problems occasioned by handling wet fabrics after compressive preshrinkage are overcome by the step of pressing each of the respective layers before their entry into their respective felt-belt dryers.
  • the pressing step is performed by apparati disclosed herein including heated shoes 44 and 46 which cooperate with input rollers 36 and 38, respectively.
  • a combination of apparati for preshrinking compressively simultaneously a plurality of smooth openweb layers of high-shrinkage fabric comprising:
  • a clip expander with means for passing the jointly ad vancing layers from the heated drum through the clip expander
  • a rubber-belt compressive preshrinkage unit with means for passing the jointly advancing layers from the clip expander through the compressive preshrinkage unit
  • an endless felt belt dryer for each of the layers and each dryer provided with an input roller for receiving one of the layers and a heated endless felt belt for passage thereover so that preshrinkage of the layer is not altered thereafter by subsequent handling
  • each of the input rollers provided with a heated shoe arranged opposite the input roller for pressing the layer thereagainst as well as to further compressively preshrink, dry and polish the layer on its surface remote from the felt belt before entry of the layer into the dryer whereby the same or different fabrics can simultaneously be compressively preshrunk to the same or difi'ering degrees.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US85453A 1970-10-30 1970-10-30 Apparatus for the compressive preshrinkage of fabrics Expired - Lifetime US3694870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8545370A 1970-10-30 1970-10-30

Publications (1)

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US3694870A true US3694870A (en) 1972-10-03

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US (1) US3694870A (ref)
BR (1) BR7107271D0 (ref)
DE (1) DE2151997A1 (ref)
EG (1) EG10814A (ref)
FI (1) FI53466C (ref)
FR (1) FR2110104A5 (ref)
GB (1) GB1339189A (ref)
RO (1) RO59641A (ref)
SU (1) SU520927A3 (ref)
TR (1) TR17039A (ref)
YU (1) YU273371A (ref)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247969A (en) * 1979-02-08 1981-02-03 Compax Corporation Method for moisture conditioning of compressively treated fabric
US10094057B2 (en) * 2016-02-08 2018-10-09 Lafer Spa Compacting machine for fabrics and corresponding compacting method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005517A (en) * 1931-06-22 1935-06-18 Cluett Peabody & Co Inc Cloth finishing
US2721370A (en) * 1953-03-18 1955-10-25 Cluett Peabody & Co Inc Machine and process for shrinking and finishing woven textile fabrics
US2885763A (en) * 1954-08-03 1959-05-12 Cluett Peabody & Co Inc Compressive shrinking machine
US3235932A (en) * 1959-06-16 1966-02-22 Elastic Fabric Co Inc Combined apparatus for shrinking fabric
US3277552A (en) * 1964-10-30 1966-10-11 Cluett Peabody & Co Inc Method and apparatus for the compressive shrinking of textile fabrics

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005517A (en) * 1931-06-22 1935-06-18 Cluett Peabody & Co Inc Cloth finishing
US2721370A (en) * 1953-03-18 1955-10-25 Cluett Peabody & Co Inc Machine and process for shrinking and finishing woven textile fabrics
US2885763A (en) * 1954-08-03 1959-05-12 Cluett Peabody & Co Inc Compressive shrinking machine
US3235932A (en) * 1959-06-16 1966-02-22 Elastic Fabric Co Inc Combined apparatus for shrinking fabric
US3277552A (en) * 1964-10-30 1966-10-11 Cluett Peabody & Co Inc Method and apparatus for the compressive shrinking of textile fabrics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247969A (en) * 1979-02-08 1981-02-03 Compax Corporation Method for moisture conditioning of compressively treated fabric
US10094057B2 (en) * 2016-02-08 2018-10-09 Lafer Spa Compacting machine for fabrics and corresponding compacting method

Also Published As

Publication number Publication date
EG10814A (en) 1976-08-31
YU273371A (en) 1982-02-28
BR7107271D0 (pt) 1973-04-10
SU520927A3 (ru) 1976-07-05
FI53466B (ref) 1978-01-31
DE2151997A1 (de) 1972-05-04
FR2110104A5 (ref) 1972-05-26
TR17039A (tr) 1974-04-25
FI53466C (fi) 1978-05-10
GB1339189A (en) 1973-11-28
RO59641A (ref) 1976-03-15

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