US2319307A - Process of preventing curling of the edges of knitted fabrics - Google Patents

Process of preventing curling of the edges of knitted fabrics Download PDF

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US2319307A
US2319307A US401708A US40170841A US2319307A US 2319307 A US2319307 A US 2319307A US 401708 A US401708 A US 401708A US 40170841 A US40170841 A US 40170841A US 2319307 A US2319307 A US 2319307A
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Prior art keywords
fabric
edges
knitted
stiffening
hose
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Expired - Lifetime
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US401708A
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Eddy Arnold
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MICHAEL S STRIKER
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MICHAEL S STRIKER
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Priority to US401708A priority Critical patent/US2319307A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
    • D06M23/18—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment for the chemical treatment of borders of fabrics or knittings; for the thermal or chemical fixation of cuttings, seams or fibre ends
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S26/00—Textiles: cloth finishing
    • Y10S26/01—Edge and/or uncurling; stiffening
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y10T428/24785—Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]

Definitions

  • these materials may. be water-insoluble, as, for instance, cellulose acetates; or water-soluble, as glue or like substances. It is evident that water-insoluble substances have to be used when the knitted fabric is subjected to processes in which it is wetted,
  • my present invention mainly consists in applying to a knitted open mesh fabric along its longitudinal edges stiffening, preferably flexible, material.
  • stiffening preferably flexible, material.
  • This e. g/ dyed; water-insoluble stiffening materials should also be used when the stiffening edges are to be part of the finished fabrics.
  • water-soluble stiffening material may be applied; furthermore, such material may also be used when the stifi'ening edges are to be removed after completion of material should be thermoplastic, 1. it should become plastic and melt on being heated, and become stiff again when cooling oil.
  • thermoplastic as hereinafter. used, is to be understood in its broadest meaning, i. e.,'- substantially all materials which can be molten by heat and become stiff by cooling are to be comprehended within the meaning of this term.
  • thermoplastic not only such materials as cellulose acetates, vinyl resins, polystyrenes, and acrylic resins, but also other cellulose derivatives, such as cellulose nitrates or Celluloid; other synthetic resins, waxes, glue and like substances are also adapted for the purposes of the .present invention insofar as they are adapted to be molten by application of heat and to become stiff when cooled.
  • open mesh as above and hereinafter used, is to be understood as defining knitted fabrics which are not coated over their entire surface but have a mesh structure enabling curling of the knitted fabric along its edges.
  • this 'thermoplastlc material has to be afiixed to the fabric along its edges by application of heat, 1, e., by melting the thermoplastic material while in contact with the fabric; the molten thermoplastic material penetrates, partly at least, the knitted fabric and adheres to the same. After cooling off, the stiffening material becomes stiff again, preventing thereby the edges to curl.
  • My new process may be carried out in various ways: Thus, I may apply to an' unheated fabric the stiffening material in heated, molten state? however, I prefer to heat the knitted fabric along its edges and apply to the thus heatedfabric portions the unheated stiffening material. In either case, the stiffening material is heated and ess of cutting open the fabric hose.
  • thermoplastic stiffening material may be applied as stated above, in molten state; in this case, it is applied by means of a nozzle, brush, or a roller partly immersing in the heated, molten stiffening material.
  • stiffening material is not heated before application. I have found it best to use strips of this stiffening material for the purposes of the present invention. In this case, the fabric is heated along the edges and simultaneously the stifi'ening strips are applied to the edge portions of the fabric. k
  • the new process is carried out by guiding at least the edge portion of one face of the knitted fabric over a heated surface and applying to thecorresponding edge portion of the other face of-said fabric the thermoplastic stiffening material; this is preferably done by pressing a strip of such stiffening material to the heated edge portion of the fabric.
  • thermoplastic stiflening strips may be used for applying the thermoplastic stiflening strips.
  • One simple and efllcient device comprises a heated roller over which are guided at least the edge portions of one face of the fabric, and means for applying the stiffening strips to the corresponding edge portions of the other face of the thus heated fabric while the fabric is in contact with the heated roller.
  • a device for preventing curling of the longitudinal edges of a knitted fabric strip made from avfabric hose comprises a heating device having a heated surface,- e. g. a
  • Process of preventing curling of the'longitudinal edges of knitted open mesh fabric comprising the step of applying to said fabric along said edges flexible stiffening material.
  • Process of preventing curling of the longitudinal edges of knitted open mesh textile fabric comprising the step of applying to said fabric along said edges heated water-insoluble thermoplastic material in such a manner that it penetrates said fabric along said edges and stii'i'ens the same after having cooled off, thereby preventing curling of said edges.
  • Process'of preventing curling of the edges of knitted open mesh textile fabrics comprising the steps of applying to said fabric along saidedges a strip of a thermoplastic material and heating said fabric where said thermoplastic strip has been applied, causing said thermoplastic strip to melt,
  • Process of preventing curling of the edges of knitted open mesh fabrics comprising the steps of guiding at least the edge portions of one face of said fabric over a heated surface, and applying to the corresponding edge portions of the other face of said fabric a thermoplastic stiffening material.
  • Process of preventing curling of the edges of a knitted open mesh textile fabric made from a knitted fabrichose by cutting open the same in longitudinal direction comprising the steps of substantially simultaneously cutting open said hose. applying to the edges formed by said cutting operation a stiffening strip of thermoplastic material, heating said fabric where said stiffenin strips have been applied, causing said stiffening strips to melt, to penetrate said fabric, and to adhere to the same, thereby stiffening said fabric along its edges after cooling off, and preventing curling of the thus stiffened fabric edges.
  • Process of preventing curling of the edges of a knitted open mesh textile fabric made from a knitted fabric hose by cutting open the same in longitudinal direction comprising the steps of guiding at least a strip-shaped portion of the inner face of said fabric hose extending in longitudinal direction of said hose over a heated surface, applying to the corresponding portion of the outer face of the thus heated fabric a stiffening strip of a thermoplastic material, and thereafter cutting open the'fabric hose in longitudinal direction substantially along the central line of the stiffening strip applied to said fabric hose, thereby producing a longitudinal fabric strip provided along its longitudinal edges with stiffening material adhering to said edge portions, and preventing curling of the same.
  • Knitted open mesh fabric having flexible thermoplastic stiffening material applied to its edge portions.
  • Knitted open mesh fabric having waterinsoluble thermoplastic stiffening material adhering to and at least partly penetrating the longitudinal edge portions of said fabric.
  • Knitted open mesh fabric having edge portions being stiffened by strips of thermoplastic material adhering to said edge portions and at least partly penetrating the same.
  • Process of preventing curling of the edges of knitted open mesh fabrics comprising the steps of pp y ng heat at least along the edge portions of one face of the fabric and applying to the corresponding edge portions of the other face of said fabric a thermoplastic stiffening material.
  • Knitted open mesh fabric having flexible stiflening material applied to its edge portions.
  • Knitted open mesh fabric having water insoluble stiffening materialadhering to and at least partly penetrating the longitudinal edge portions of this fabric.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Of Fabric (AREA)

Description

Panel Mayl8, 1e43, I
' UNITED STATES PATE i I raocass or swim; cuamvcor run g, 1, 2,319,307 NT "oral-ca EDGES OF KNITTED FABRICS Arnold Eddy, Stamford, Coma, animal to Michael S. Striker, New York, N. I;
No Drawing. Application July 5, 1941,
14 Claims. (Cl. 117-4) My present invention relates to improvements in producing knitted textile fabrics and to an improved knitted fabric produced by this process.
It is well known that the edges of knitted fabrics curl during the process of finishing, especially while subjected to raising and napping.
It is the mainobject of my present invention I molten while in contact with the surface of the knitted fabric, thereby penetrating it and adhering to the same. a
lavish to stress that, as already mentioned above, I may use for stiffening purposes a great variety of materials: these materials may. be water-insoluble, as, for instance, cellulose acetates; or water-soluble, as glue or like substances. It is evident that water-insoluble substances have to be used when the knitted fabric is subjected to processes in which it is wetted,
without substantially changing the knitting and,
finishing processes as used so far.
With the above objects in view, my present invention mainly consists in applying to a knitted open mesh fabric along its longitudinal edges stiffening, preferably flexible, material. This e. g/ dyed; water-insoluble stiffening materials should also be used when the stiffening edges are to be part of the finished fabrics. In case that the fabrics are not subjected to wetting during the finishing process, water-soluble stiffening material may be applied; furthermore, such material may also be used when the stifi'ening edges are to be removed after completion of material should be thermoplastic, 1. it should become plastic and melt on being heated, and become stiff again when cooling oil. The term "thermoplastic, as hereinafter. used, is to be understood in its broadest meaning, i. e.,'- substantially all materials which can be molten by heat and become stiff by cooling are to be comprehended within the meaning of this term.
Thus I consider as thermoplastic not only such materials as cellulose acetates, vinyl resins, polystyrenes, and acrylic resins, but also other cellulose derivatives, such as cellulose nitrates or Celluloid; other synthetic resins, waxes, glue and like substances are also adapted for the purposes of the .present invention insofar as they are adapted to be molten by application of heat and to become stiff when cooled. The term open mesh" as above and hereinafter used, is to be understood as defining knitted fabrics which are not coated over their entire surface but have a mesh structure enabling curling of the knitted fabric along its edges.
In accordance with my invention, this 'thermoplastlc material has to be afiixed to the fabric along its edges by application of heat, 1, e., by melting the thermoplastic material while in contact with the fabric; the molten thermoplastic material penetrates, partly at least, the knitted fabric and adheres to the same. After cooling off, the stiffening material becomes stiff again, preventing thereby the edges to curl.
My new process may be carried out in various ways: Thus, I may apply to an' unheated fabric the stiffening material in heated, molten state? however, I prefer to heat the knitted fabric along its edges and apply to the thus heatedfabric portions the unheated stiffening material. In either case, the stiffening material is heated and ess of cutting open the fabric hose.
the steps of cutting'open the hose, applying to the the finishing process.
The thermoplastic stiffening material may be applied as stated above, in molten state; in this case, it is applied by means of a nozzle, brush, or a roller partly immersing in the heated, molten stiffening material.
If the stiffening material is not heated before application. I have found it best to use strips of this stiffening material for the purposes of the present invention. In this case, the fabric is heated along the edges and simultaneously the stifi'ening strips are applied to the edge portions of the fabric. k
In accordance with a preferred embodiment of my invention, the new process is carried out by guiding at least the edge portion of one face of the knitted fabric over a heated surface and applying to thecorresponding edge portion of the other face of-said fabric the thermoplastic stiffening material; this is preferably done by pressing a strip of such stiffening material to the heated edge portion of the fabric.
At present, most knitted fabrics are produced by first making a knitted hose and cutting open the same in longitudinal direction. I have found that the above described process -of preventing the edges to curl may be combined with theproc- Preferably edges formed by this cutting operation stiil'ening strips of a thermoplastic material, and heating the fabric where these stiffening strips are applied, are carried out substantially at the same time. Thus, my new combined. process may be carried out by guiding at least a strip-shaped portion of the inner face of the fabric hose,-
extending in longitudinal direction of this hose, over a heated surface, applying a stiffening strip of a thermoplastic material to the corresponding portion of the outer face of the thus heated fabric hose while the same is in contact with the heated hose in longitudinal direction substantially along r the central line of the stiffening strip applied to the fabric hose. "Z I'her'eby a longitudinal fabric piece, provided along its longitudinal edges with stiffening material adhering to the edge portions of the fabric and preventing curling of the same, is produced.
It is evident that various devices may be used for applying the thermoplastic stiflening strips.
One simple and efllcient device comprises a heated roller over which are guided at least the edge portions of one face of the fabric, and means for applying the stiffening strips to the corresponding edge portions of the other face of the thus heated fabric while the fabric is in contact with the heated roller. A device for preventing curling of the longitudinal edges of a knitted fabric strip made from avfabric hose, comprises a heating device having a heated surface,- e. g. a
the outer face of the thus heated fabric hose while the same is in contact with the above mentioned heated roller, and means for cutting open the fabric hose substantially along the central line of the stiffening strip thus applied to the fabric hose.
, Without further analysis, the foregoing will so fully reveal the'gist of my invention that others can by applying current knowledge readily adapt it for various applications without omitting features that,.from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalency of the following claims.
What I claim as new and desire to secure by Letters Patent is:
1. Process of preventing curling of the'longitudinal edges of knitted open mesh fabric comprising the step of applying to said fabric along said edges flexible stiffening material.
2. Process of preventing curling of the longitudinal edges of knitted open mesh fabric, comprising the step of .aflixing to saidfabric along said longitudinal edges, by applying heat, a thermoplastic stiffening material. P
3. Process of preventing curling of the longitudinal edges of knitted open mesh textile fabric comprising the step of applying to said fabric along said edges heated water-insoluble thermoplastic material in such a manner that it penetrates said fabric along said edges and stii'i'ens the same after having cooled off, thereby preventing curling of said edges.
4. Process'of preventing curling of the edges of knitted open mesh textile fabrics, comprising the steps of applying to said fabric along saidedges a strip of a thermoplastic material and heating said fabric where said thermoplastic strip has been applied, causing said thermoplastic strip to melt,
to penetrate said fabric, and to adhere to the I same, thereby stiffening said fabric along its edges after cooling off, and preventing curling of the thus stifiened fabric edges.
5. Process of preventing curling of the edges of knitted open mesh fabrics, comprising the steps of guiding at least the edge portions of one face of said fabric over a heated surface, and applying to the corresponding edge portions of the other face of said fabric a thermoplastic stiffening material.
6. Process of preventing curling of the edges of a knitted open mesh textile fabric made from a knitted fabrichose by cutting open the same in longitudinal direction, comprising the steps of substantially simultaneously cutting open said hose. applying to the edges formed by said cutting operation a stiffening strip of thermoplastic material, heating said fabric where said stiffenin strips have been applied, causing said stiffening strips to melt, to penetrate said fabric, and to adhere to the same, thereby stiffening said fabric along its edges after cooling off, and preventing curling of the thus stiffened fabric edges.
7. Process of preventing curling of the edges of a knitted open mesh textile fabric made from a knitted fabric hose by cutting open the same in longitudinal direction, comprising the steps of guiding at least a strip-shaped portion of the inner face of said fabric hose extending in longitudinal direction of said hose over a heated surface, applying to the corresponding portion of the outer face of the thus heated fabric a stiffening strip of a thermoplastic material, and thereafter cutting open the'fabric hose in longitudinal direction substantially along the central line of the stiffening strip applied to said fabric hose, thereby producing a longitudinal fabric strip provided along its longitudinal edges with stiffening material adhering to said edge portions, and preventing curling of the same.
8. Knitted open mesh fabric, having flexible thermoplastic stiffening material applied to its edge portions. 1
9. Knitted open mesh fabric, having waterinsoluble thermoplastic stiffening material adhering to and at least partly penetrating the longitudinal edge portions of said fabric.
10. Knitted open mesh fabric, having edge portions being stiffened by strips of thermoplastic material adhering to said edge portions and at least partly penetrating the same.
11. Process of preventing curling of the edges of knitted open mesh fabrics comprising the steps of pp y ng heat at least along the edge portions of one face of the fabric and applying to the corresponding edge portions of the other face of said fabric a thermoplastic stiffening material.
12. Knitted open mesh fabric having flexible stiflening material applied to its edge portions.
13. Knitted open mesh fabric having water insoluble stiffening materialadhering to and at least partly penetrating the longitudinal edge portions of this fabric.
14. Process of preventing curling of the longitudinal edges of a knitted open mesh fabric made from a knitted fabric hose by cutting open the same in longitudinal direction of the hose, comprising the steps of applying to said fabric hose stiffening material to a strip shaped portion of said hose extending in longitudinal direction of said hose'and cutting .open said fabric hose in
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565753A (en) * 1947-01-06 1951-08-28 Botwinick Israel Method and apparatus for forming plastic buttonholes
US2633618A (en) * 1944-12-11 1953-04-07 Better Products Inc Buttonhole and method of making buttonholes
US2922417A (en) * 1953-06-11 1960-01-26 Johnson & Johnson Air-permeable product and method of making it
US3025196A (en) * 1958-02-06 1962-03-13 Kimberly Clark Co Apparatus for forming an edge reinforced non-woven web
US3330685A (en) * 1962-11-14 1967-07-11 United Shoe Machinery Corp Method for forming a serrated tearing edge with a hardened thermoplastic resin layer
US3383268A (en) * 1964-03-02 1968-05-14 Deering Milliken Res Corp Flaw detector
US3506518A (en) * 1964-03-02 1970-04-14 Deering Milliken Res Corp Method and apparatus for making a selvage
US3544339A (en) * 1966-12-06 1970-12-01 Union Carbide Corp Method of retaining integrity of the open end of shirred food casings
US4888229A (en) * 1988-04-08 1989-12-19 The Texwipe Company Wipers for cleanroom use
US4894276A (en) * 1986-05-16 1990-01-16 Bgf Industries, Inc. Bonded glass fabric edge
US20100046660A1 (en) * 2008-05-13 2010-02-25 Qualcomm Incorporated Interference cancellation under non-stationary conditions
US20150246655A1 (en) * 2012-09-27 2015-09-03 Toray Industries, Inc. Woven fabric and process of producing same

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633618A (en) * 1944-12-11 1953-04-07 Better Products Inc Buttonhole and method of making buttonholes
US2565753A (en) * 1947-01-06 1951-08-28 Botwinick Israel Method and apparatus for forming plastic buttonholes
US2922417A (en) * 1953-06-11 1960-01-26 Johnson & Johnson Air-permeable product and method of making it
US3025196A (en) * 1958-02-06 1962-03-13 Kimberly Clark Co Apparatus for forming an edge reinforced non-woven web
US3330685A (en) * 1962-11-14 1967-07-11 United Shoe Machinery Corp Method for forming a serrated tearing edge with a hardened thermoplastic resin layer
US3506518A (en) * 1964-03-02 1970-04-14 Deering Milliken Res Corp Method and apparatus for making a selvage
US3383268A (en) * 1964-03-02 1968-05-14 Deering Milliken Res Corp Flaw detector
US3544339A (en) * 1966-12-06 1970-12-01 Union Carbide Corp Method of retaining integrity of the open end of shirred food casings
US4894276A (en) * 1986-05-16 1990-01-16 Bgf Industries, Inc. Bonded glass fabric edge
US4888229A (en) * 1988-04-08 1989-12-19 The Texwipe Company Wipers for cleanroom use
US20100046660A1 (en) * 2008-05-13 2010-02-25 Qualcomm Incorporated Interference cancellation under non-stationary conditions
US20150246655A1 (en) * 2012-09-27 2015-09-03 Toray Industries, Inc. Woven fabric and process of producing same
US9211865B2 (en) * 2012-09-27 2015-12-15 Toray Industries, Inc. Woven fabric and process of producing same

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