EP0947626A1 - Composite fabric with mutually joined superimposed layers - Google Patents

Composite fabric with mutually joined superimposed layers Download PDF

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Publication number
EP0947626A1
EP0947626A1 EP99105105A EP99105105A EP0947626A1 EP 0947626 A1 EP0947626 A1 EP 0947626A1 EP 99105105 A EP99105105 A EP 99105105A EP 99105105 A EP99105105 A EP 99105105A EP 0947626 A1 EP0947626 A1 EP 0947626A1
Authority
EP
European Patent Office
Prior art keywords
layers
layer
fibers
composite fabric
fabric
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.)
Withdrawn
Application number
EP99105105A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giorgio Correggiari
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.)
Correggiari Giorgio Srl
Original Assignee
Correggiari Giorgio Srl
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 Correggiari Giorgio Srl filed Critical Correggiari Giorgio Srl
Publication of EP0947626A1 publication Critical patent/EP0947626A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Definitions

  • the present invention relates to a composite fabric with mutually joined superimposed layers.
  • This type of product has an extremely limited use and does not allow to produce fabrics with presettable tactile, mechanical, visual and aesthetic characteristics which can vary in each instance depending on the fabrics that are mutually bonded.
  • the aim of the present invention is to provide a new composite fabric which allows to mutually join two fabrics or in any case two layers, at least one of which is made of fabric, which can have mutually different characteristics and are joined mechanically by means of a stable coupling which produces a new and original product.
  • a particular object of the present invention is to provide a composite fabric which allows to mutually join, in an optimum manner, different products such as wool/viscose, viscose/nylon, acetate/viscose, cotton/polyester and so forth.
  • Another object of the present invention is to provide a composite fabric in which it is possible to mutually join already-made fabrics, thus allowing in practice to recycle fabric remnants, changing their outward appearance.
  • Another object of the present invention is to provide a composite fabric whose finish characteristics can be changed in each individual instance according to the type of fabric being used and according to the type of bonding being performed.
  • a composite fabric with mutually joined superimposed layers characterized in that it comprises at least one first layer and at least one second layer which are mutually joined by means of fibers of yarn which protrude from one of said layers and are inserted through the other one of said layers, said fibers being retained in said other one of said layers in order to provide a stable bonding of said layers.
  • the composite fabric with mutually joined superimposed layers is constituted by at least one first layer 1 and by at least one second layer 2 which are preferably constituted by fabrics or similar textile products obtained from yarns which are preferably twisted with more than 700/800 twists.
  • Bonding is provided by taking up fibers, schematically designated by the reference numeral 3, from one of the layers, for example the first layer 1, and inserting them in the weft of the second layer 2, thus achieving a bonding which can be defined as mechanical.
  • the fiber that constitutes the yarn of one fabric in practice enters the weft/warp weave of any second fabric, becoming accordingly a means suitable to join the two fabrics.
  • the number of twists per unit of measure chosen that is given to the yarn becomes an important factor, since the tactile, mechanical, visual characteristics and accordingly the different quality of the fabrics are determined.
  • the count of the yarn is therefore crucially important.
  • the count of yarns is the value that defines the degree of fineness of yarns by expressing it on the basis of length and weight parameters.
  • the count is determined by various measurements; in particular, the metric count, indicated by Nm, indicates the number of 1000-meter skeins required to reach a weight of one kilogram; the denier count Td instead indicates the number of grams per 9000 meters.
  • Ne The so-called English count, designated by Ne, is also used. This count varies according to the type of material; in particular, for staple cotton and rayon, it indicates how many 840-yard (768-meter) skeins are required to reach the weight of one pound (0.454 kilograms); for wool, the measurement must be made using 560 yards (512 meters); for linen, hemp and jute, 300 yards (274 meters) are considered.
  • the count in the case of folded yarns, the count, unless it is specified for each component, in the direct system, i.e., in the English system and in the denier system is equal to the sum of the counts of the components of the yarn, while in the indirect system, i.e., in the metric count system, the relation of the count is such that the inverse of the count of the yarn is equal to the sum of the inverses of the individual counts of the yarns.
  • the yarns that constitute a fabric must not be broken, so as to avoid reducing the mechanical strength of each layer.
  • the type of the fabrics to be bonded and the density of the treatment per centimeter become important; said density is determined by the nature and inherent elasticity of the fibers that compose the yarn and by the fact that in any case perforations are produced which, if they are too closely packed, can decrease the mechanical strength of the resulting new product.
  • a loom of the quilting type is used to which hook-shaped needles, designated by the reference numeral 10, have been applied; said needles move at right angles to the fabric and extract the fibers of the yarns from the lower layer to insert them in the upper layer.
  • the number of beats that the extractor performs in each instance in the advancement space of one centimeter, and the pitch, i.e., the number of needles aligned transversely to the advancement of the fabric per linear centimeter, become important.
  • the higher the count of the fabric the larger the required number of extractions of fiber from the yarn per centimeter, with a consequent possible risk of fragility of the finished product, while when using a fabric constituted by yarns which have a low count according to metric measurement, the bonding process is easier and entails a lower pitch per millimeter.
  • the method for producing cohesion between two or more fabrics is ideal with fabrics made of mixed components such as wool/viscose, viscose/nylon, acetate/viscose and so forth because the interference of the process is produced in materials which react in a different but already-optimized manner and accordingly mutually intersect in the weft/warp weaves in an optimum manner.
  • the bonding principle devised considers the characteristic down of the yarn of each fabric chosen as means for the transport and coupling thereof to the opposite surface of another fabric or optionally of other additional fabrics superimposed thereon.
  • the resulting aesthetic effect is modified in each instance depending on the fabric from which the fiber inserted in the other fabric is extracted.
  • composites have been produced by using a first layer of viscose with a count of 30 Ne, to which a second layer of cotton with a count of 40,000 Nm was bonded by using 5 beats per centimeter and a pitch of 5 needles per centimeter.
  • Another type of bonding provides for a first layer of cashmere with a count of 115,000 Nm coupled to a second polyester layer with a count of 78 Td, with 4 beats per centimeters and a pitch of 3 needles per centimeter.
  • a non-woven polyester fabric with a count of 78 Td has also been bonded with a second layer of cashmere with a count of 140,000 Nm and printed viscose with a count of 30 Ne, with a process performed by means of 2 beats per centimeter and with a pitch of 2 needles per centimeter.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Absorbent Articles And Supports Therefor (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
EP99105105A 1998-03-30 1999-03-25 Composite fabric with mutually joined superimposed layers Withdrawn EP0947626A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980671 IT1298972B1 (it) 1998-03-30 1998-03-30 Tessuto accoppiato con strati sovrapposti tra loro riuniti
ITMI980671 1998-03-30

Publications (1)

Publication Number Publication Date
EP0947626A1 true EP0947626A1 (en) 1999-10-06

Family

ID=11379574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105105A Withdrawn EP0947626A1 (en) 1998-03-30 1999-03-25 Composite fabric with mutually joined superimposed layers

Country Status (2)

Country Link
EP (1) EP0947626A1 (it)
IT (1) IT1298972B1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040828A1 (de) * 2000-08-21 2002-03-21 Huyck Austria Filz

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086276A (en) * 1961-09-15 1963-04-23 Lockport Felt Company Inc Papermaker's felt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086276A (en) * 1961-09-15 1963-04-23 Lockport Felt Company Inc Papermaker's felt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040828A1 (de) * 2000-08-21 2002-03-21 Huyck Austria Filz
US6699367B2 (en) 2000-08-21 2004-03-02 Weavexx Corporation Papermaker's felt
DE10040828B4 (de) * 2000-08-21 2006-06-14 Huyck-Austria Ges.M.B.H. Filz

Also Published As

Publication number Publication date
IT1298972B1 (it) 2000-02-07
ITMI980671A1 (it) 1999-09-30

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